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Changes On Branch libbind-ns-alternative
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Changes On Branch libbind-ns-alternative

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Changes In Branch libbind-ns-alternative Excluding Merge-Ins

This is equivalent to a diff from a28c8364 to b6c490ce

2018-10-01
06:21
Merged branch libbind-ns-alternative: I haven't found any platform where this won't build. It doesn't enable libbind or use libresolv better on every platform where it might possibly work, but at the very least it avoids build errors everywhere I've tried it. ... (check-in: 71c298f3 user: wyoung tags: trunk)
2018-09-22
17:09
Typo fix ... (Closed-Leaf check-in: b6c490ce user: tangent tags: libbind-ns-alternative)
17:02
Added a check for ns_parserr(), which we currently don't know how to find on OpenBSD. This also fixes a logic error in auto.def which would cause the warning that this feature won't be compiled to not be given. ... (check-in: f99e7632 user: wyoung tags: libbind-ns-alternative)
2007-07-21
14:10
Initial check-in of m1 sources. ... (check-in: dbda8d6c user: drh tags: trunk)
14:09
initial empty baseline ... (check-in: a28c8364 user: drh tags: trunk)

Added .dockerignore.



























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_FOSSIL_
.fslckout
ajax
art
autosetup
bld
compat
debian
fossil
fossil.exe
setup
src
test
tools
win
wbld
win
www
*.a
*.lib
*.log
*.manifest
*.o
*.obj
*.pdb
*.res

Added .fossil-settings/binary-glob.












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*.gif
*.ico
*.jpg
*.odp
*.dia
*.pdf
*.png
compat/zlib/contrib/blast/test.pk
compat/zlib/contrib/dotzlib/DotZLib.chm
compat/zlib/contrib/puff/zeros.raw
compat/zlib/zlib.3.pdf

Added .fossil-settings/clean-glob.




















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*.a
*.lib
*.manifest
*.o
*.obj
*.pdb
*.res
Makefile
autosetup/jimsh0
autosetup/jimsh0.exe
bld/*
wbld/*
win/*.c
win/*.h
win/*.exe
win/headers
win/linkopts
autoconfig.h
config.log

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compat/zlib/*
setup/fossil.iss
test/th1-docs-input.txt
test/th1-hooks-input.txt
win/buildmsvc.bat

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compat/zlib/contrib/dotzlib/DotZLib/*.cs
test/utf16be.txt
test/utf16le.txt
win/fossil.rc

Added .fossil-settings/ignore-glob.








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compat/openssl*
compat/tcl*
fossil
fossil.exe
win/fossil.exe
*shell-see.*
*sqlite3-see.*

Added .project.












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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
	<name>fossil</name>
	<comment></comment>
	<projects>
	</projects>
	<buildSpec>
	</buildSpec>
	<natures>
	</natures>
</projectDescription>

Added .settings/org.eclipse.core.resources.prefs.



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eclipse.preferences.version=1
encoding/<project>=UTF-8

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eclipse.preferences.version=1
line.separator=\n

Added BUILD.txt.















































































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To do a complete build, just type:

   ./configure; make

The ./configure script builds Makefile from Makefile.in based on
your system and any options you select (run "./configure --help"
for a listing of the available options.)

If you wish to use the original Makefile with no configuration, you can
instead use:

   make -f Makefile.classic

On a windows box, use one of the Makefiles in the win/ subdirectory,
according to your compiler and environment.  If you have MinGW or
MinGW-w64 installed on your system (Msys or Cygwin, or as
cross-compile environment on Linux or Darwin), then consider:

   make -f win/Makefile.mingw

If you have VC++ installed on your system, then consider:

   cd win; nmake /f Makefile.msc

If you have trouble, or you want to do something fancy, just look at
Makefile.classic. There are 6 configuration options that are all well
commented. Instead of editing the Makefile.classic, consider copying
Makefile.classic to an alternative name such as "GNUMakefile",
"BSDMakefile", or "makefile" and editing the copy.


BUILDING OUTSIDE THE SOURCE TREE

An out of source build is pretty easy:

  1. Make and change to a new directory to do the builds in.
  2. Run the "configure" script from this directory.
  3. Type: "make"

For example:

  mkdir build
  cd build
  ../configure
  make

This will now keep all generates files separate from the maintained
source code.

--------------------------------------------------------------------------

Here are some notes on what is happening behind the scenes:

* The configure script (if used) examines the options given
  and runs various tests with the C compiler to create Makefile
  from the Makefile.in template as well as autoconfig.h

* The Makefile just sets up a few macros and then invokes the
  real makefile in src/main.mk.  The src/main.mk makefile is
  automatically generated by a TCL script found at src/makemake.tcl.
  Do not edit src/main.mk directly.  Update src/makemake.tcl and
  then rerun it.

* The *.h header files are automatically generated using a program
  called "makeheaders".  Source code to the makeheaders program is
  found in src/makeheaders.c.  Documentation is found in
  src/makeheaders.html.

* Most *.c source files are preprocessed using a program called
  "translate".  The sources to translate are found in src/translate.c.
  A header comment in src/translate.c explains in detail what it does.

* The src/mkindex.c program generates some C code that implements
  static lookup tables.  See the header comment in the source code
  for details on what it does.

Additional information on the build process is available from
http://www.fossil-scm.org/fossil/doc/trunk/www/makefile.wiki

Added COPYRIGHT-BSD2.txt.
































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Copyright 2007 D. Richard Hipp. All rights reserved.

Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the
following conditions are met:

   1. Redistributions of source code must retain the above
      copyright notice, this list of conditions and the
      following disclaimer.

   2. Redistributions in binary form must reproduce the above
      copyright notice, this list of conditions and the
      following disclaimer in the documentation and/or other
      materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The views and conclusions contained in the software and documentation
are those of the authors and contributors and should not be interpreted
as representing official policies, either expressed or implied, of anybody
else.

Added Dockerfile.



























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###
#   Dockerfile for Fossil
###
FROM fedora:28

### Now install some additional parts we will need for the build
RUN dnf update -y && dnf install -y gcc make tcl tcl-devel zlib-devel openssl-devel tar && dnf clean all && groupadd -r fossil -g 433 && useradd -u 431 -r -g fossil -d /opt/fossil -s /sbin/nologin -c "Fossil user" fossil

### If you want to build "trunk", change the next line accordingly.
ENV FOSSIL_INSTALL_VERSION release

RUN curl "https://www.fossil-scm.org/index.html/tarball/fossil-src.tar.gz?name=fossil-src&uuid=${FOSSIL_INSTALL_VERSION}" | tar zx
RUN cd fossil-src && ./configure --disable-fusefs --json --with-th1-docs --with-th1-hooks --with-tcl=1 --with-tcl-stubs --with-tcl-private-stubs
RUN cd fossil-src/src && mv main.c main.c.orig && sed s/\"now\"/0/ <main.c.orig >main.c
RUN cd fossil-src && make && strip fossil && cp fossil /usr/bin && cd .. && rm -rf fossil-src && chmod a+rx /usr/bin/fossil && mkdir -p /opt/fossil && chown fossil:fossil /opt/fossil

### Build is done, remove modules no longer needed
RUN dnf remove -y gcc make zlib-devel tcl-devel openssl-devel tar && dnf clean all

USER fossil

ENV HOME /opt/fossil

EXPOSE 8080

CMD ["/usr/bin/fossil", "server", "--create", "--user", "admin", "/opt/fossil/repository.fossil"]

Added Makefile.classic.






























































































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#!/usr/bin/make
#
# This is the top-level makefile for Fossil when the build is occurring
# on a unix platform.  This works out-of-the-box on most unix platforms.
# But you are free to vary some of the definitions if desired.
#
#### The toplevel directory of the source tree.  Fossil can be built
#    in a directory that is separate from the source tree.  Just change
#    the following to point from the build directory to the src/ folder.
#
SRCDIR = ./src

#### The directory into which object code files should be written.
#
#
OBJDIR = ./bld

#### C Compiler and options for use in building executables that
#    will run on the platform that is doing the build.  This is used
#    to compile code-generator programs as part of the build process.
#    See TCC below for the C compiler for building the finished binary.
#
BCC = gcc
BCCFLAGS = $(CFLAGS)

#### The suffix to add to final executable file.  When cross-compiling
#    to windows, make this ".exe".  Otherwise leave it blank.
#
E =

#### C Compile and options for use in building executables that
#    will run on the target platform.  This is usually the same
#    as BCC, unless you are cross-compiling.  This C compiler builds
#    the finished binary for fossil.  The BCC compiler above is used
#    for building intermediate code-generator tools.
#
#TCC = gcc -O6
#TCC = gcc -g -O0 -Wall -fprofile-arcs -ftest-coverage
TCC = gcc -g -Os -Wall

# To use the included miniz library
# FOSSIL_ENABLE_MINIZ = 1
# TCC += -DFOSSIL_ENABLE_MINIZ

# To add support for HTTPS
TCC += -DFOSSIL_ENABLE_SSL

# To enable legacy mv/rm support
TCC += -DFOSSIL_ENABLE_LEGACY_MV_RM=1

#### We sometimes add the -static option here so that we can build a
#    static executable that will run in a chroot jail.
#LIB = -static
TCC += -DFOSSIL_DYNAMIC_BUILD=1

TCCFLAGS = $(CFLAGS)

#### Extra arguments for linking the finished binary.  Fossil needs
#    to link against the Z-Lib compression library unless the miniz
#    library in the source tree is being used.  There are no other
#    required dependencies.
ZLIB_LIB.0 = -lz
ZLIB_LIB.1 =
ZLIB_LIB.  = $(ZLIB_LIB.0)

# If using zlib:
LIB += $(ZLIB_LIB.$(FOSSIL_ENABLE_MINIZ)) $(LDFLAGS)

# If using HTTPS:
LIB += -lcrypto -lssl

#### Tcl shell for use in running the fossil testsuite.  If you do not
#    care about testing the end result, this can be blank.
#
TCLSH = tclsh

# You should not need to change anything below this line
###############################################################################
#
# Automatic platform-specific options.
HOST_OS_CMD = uname -s
HOST_OS = $(HOST_OS_CMD:sh)

LIB.SunOS= -lsocket -lnsl
LIB += $(LIB.$(HOST_OS))

TCC.DragonFly += -DUSE_PREAD
TCC.FreeBSD += -DUSE_PREAD
TCC.NetBSD += -DUSE_PREAD
TCC.OpenBSD += -DUSE_PREAD
TCC += $(TCC.$(HOST_OS))

include $(SRCDIR)/main.mk

Added Makefile.in.













































































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#!/usr/bin/make
#
# This is the top-level makefile for Fossil when the build is occurring
# on a unix platform.  This works out-of-the-box on most unix platforms.
# But you are free to vary some of the definitions if desired.
#
#### The toplevel directory of the source tree.  Fossil can be built
#    in a directory that is separate from the source tree.  Just change
#    the following to point from the build directory to the src/ folder.
#
SRCDIR = @srcdir@/src

#### The directory into which object code files should be written.
#    Having a "./" prefix in the value of this variable breaks our use of the
#    "makeheaders" tool when running make on the MinGW platform, apparently
#    due to some command line argument manipulation performed automatically
#    by the shell.
#
#
OBJDIR = bld

#### C Compiler and options for use in building executables that
#    will run on the platform that is doing the build.  This is used
#    to compile code-generator programs as part of the build process.
#    See TCC below for the C compiler for building the finished binary.
#
BCC = @CC_FOR_BUILD@

#### The suffix to add to final executable file.  When cross-compiling
#    to windows, make this ".exe".  Otherwise leave it blank.
#
E = @EXEEXT@

TCC = @CC@

#### Tcl shell for use in running the fossil testsuite.  If you do not
#    care about testing the end result, this can be blank.
#
TCLSH = @TCLSH@

CFLAGS = @CFLAGS@
LIB =	@LDFLAGS@ @EXTRA_LDFLAGS@ @LIBS@
BCCFLAGS =	@CPPFLAGS@ $(CFLAGS)
TCCFLAGS =	@EXTRA_CFLAGS@ @CPPFLAGS@ $(CFLAGS) -DHAVE_AUTOCONFIG_H -D_HAVE_SQLITE_CONFIG_H
INSTALLDIR = $(DESTDIR)@prefix@/bin
USE_SYSTEM_SQLITE = @USE_SYSTEM_SQLITE@
USE_LINENOISE = @USE_LINENOISE@
USE_MMAN_H = @USE_MMAN_H@
USE_SEE = @USE_SEE@
FOSSIL_ENABLE_MINIZ = @FOSSIL_ENABLE_MINIZ@

include $(SRCDIR)/main.mk

distclean: clean
	-rm -f autoconfig.h config.log Makefile

reconfig:
	@AUTOREMAKE@

# Automatically reconfigure whenever an autosetup file or one of the
# make source files change.
#
# The "touch" is necessary to avoid a make loop due to a new upstream
# feature in autosetup (GH 0a71e3c3b7) which rewrites *.in outputs only
# if doing so will write different contents; otherwise, it leaves them
# alone so the mtime doesn't change.  This means that if you change one
# our depdendencies besides Makefile.in, we'll reconfigure but Makefile
# won't change, so this rule will remain out of date, so we'll reconfig
# but Makefile won't change, so we'll reconfig but... endlessly.
#
# This is also why we repeat the reconfig target's command here instead
# of delegating to it with "$(MAKE) reconfig": having children running
# around interfering makes this failure mode even worse.
Makefile: @srcdir@/Makefile.in $(SRCDIR)/main.mk @AUTODEPS@
	@AUTOREMAKE@
	touch @builddir@/Makefile

Added Makefile.osx-jaguar.










































































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#!/usr/bin/make
#
# This is a specially modified version of the Makefile that will build
# Fossil on Mac OSX Jaguar (10.2) circa 2002.  This Makefile is used for
# testing on an old PPC iBook.  The use of this old platform helps to verify
# Fossil and SQLite running on big-endian hardware.
#
# To build with this Makefile, run:
#
#     make -f Makefile.osx-jaguar
#
#
# This is the top-level makefile for Fossil when the build is occurring
# on a unix platform.  This works out-of-the-box on most unix platforms.
# But you are free to vary some of the definitions if desired.
#
#### The toplevel directory of the source tree.  Fossil can be built
#    in a directory that is separate from the source tree.  Just change
#    the following to point from the build directory to the src/ folder.
#
SRCDIR = ./src

#### The directory into which object code files should be written.
#    Having a "./" prefix in the value of this variable breaks our use of the
#    "makeheaders" tool when running make on the MinGW platform, apparently
#    due to some command line argument manipulation performed automatically
#    by the shell.
#
#
OBJDIR = bld

#### C Compiler and options for use in building executables that
#    will run on the platform that is doing the build.  This is used
#    to compile code-generator programs as part of the build process.
#    See TCC below for the C compiler for building the finished binary.
#
BCC = cc
BCCFLAGS = $(CFLAGS)

#### The suffix to add to final executable file.  When cross-compiling
#    to windows, make this ".exe".  Otherwise leave it blank.
#
E = 

TCC = cc
TCCFLAGS = $(CFLAGS)

#### Tcl shell for use in running the fossil testsuite.  If you do not
#    care about testing the end result, this can be blank.
#
TCLSH = tclsh

# LIB =	  -lz
LIB = compat/zlib/libz.a
TCC +=	  -g -O0 -DHAVE_AUTOCONFIG_H
TCC += -Icompat/zlib
TCC += -DSQLITE_WITHOUT_ZONEMALLOC
TCC += -D_BSD_SOURCE=1
TCC += -DWITHOUT_ICONV
TCC += -Dsocklen_t=int
TCC += -DSQLITE_MAX_MMAP_SIZE=0
TCC += -DFOSSIL_ENABLE_LEGACY_MV_RM=1
INSTALLDIR = $(DESTDIR)/usr/local/bin
USE_SYSTEM_SQLITE = 
USE_LINENOISE = 1
# FOSSIL_ENABLE_TCL = @FOSSIL_ENABLE_TCL@
FOSSIL_ENABLE_TCL = 0
FOSSIL_ENABLE_MINIZ = 0

include $(SRCDIR)/main.mk

distclean: clean
	rm -f autoconfig.h config.log Makefile

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This is the README for how to set up the Fossil/JSON test web page
under Apache on Unix systems. This is only intended only for
Fossil/JSON developers/tinkerers:

First, copy cgi-bin/fossil-json.cgi.example to
cgi-bin/fossil-json.cgi.  Edit it and correct the paths to the fossil
binary and the repo you want to serve. Make it executable.

MAKE SURE that the fossil repo you use is world-writable OR that your
Web/CGI server is set up to run as the user ID of the owner of the
fossil file. ALSO: the DIRECTORY CONTAINING the repo file must be
writable by the CGI process.

Next, set up an apache vhost entry. Mine looks like:

<VirtualHost *:80>
    ServerAlias fjson
    ScriptAlias /cgi-bin/ /home/stephan/cvs/fossil/fossil-json/ajax/cgi-bin/
    DocumentRoot /home/stephan/cvs/fossil/fossil-json/ajax
</VirtualHost>

Now add your preferred vhost name (fjson in the above example) to /etc/hosts:

  127.0.0.1 ...other aliases... fjson

Restart your Apache.

Now visit: http://fjson/

that will show the test/demo page. If it doesn't, edit index.html and
make sure that:

  WhAjaj.Connector.options.ajax.url = ...;

points to your CGI script. In theory you can also do this over fossil
standalone server mode, but i haven't yet tested that particular test
page in that mode.

Added ajax/cgi-bin/fossil-json.cgi.example.



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#!/path/to/fossil/binary
repository: /path/to/repo.fsl

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var FShell = {
    serverUrl:
        'http://localhost:8080'
        //'http://fjson/cgi-bin/fossil-json.cgi'
        //'http://192.168.1.62:8080'
        //'http://fossil.wanderinghorse.net/repos/fossil-json-java/index.cgi'
        ,
    verbose:false,
    prompt:"fossil shell > ",
    wiki:{},
    consol:java.lang.System.console(),
    v:function(msg){
        if(this.verbose){
            print("VERBOSE: "+msg);
        }
    }
};
(function bootstrap() {
    var srcdir = '../js/';
    var includes = [srcdir+'json2.js',
                    srcdir+'whajaj.js',
                    srcdir+'fossil-ajaj.js'
                    ];
    for( var i in includes ) {
        load(includes[i]);
    }
    WhAjaj.Connector.prototype.sendImpl = WhAjaj.Connector.sendImpls.rhino;
    FShell.fossil = new FossilAjaj({
        asynchronous:false, /* rhino-based impl doesn't support async. */
        timeout:10000,
        url:FShell.serverUrl
    });
    print("Server: "+FShell.serverUrl);
    var cb = FShell.fossil.ajaj.callbacks;
    cb.beforeSend = function(req,opt){
        if(!FShell.verbose) return;
        print("SENDING REQUEST: AJAJ options="+JSON.stringify(opt));
        if(req) print("Request envelope="+WhAjaj.stringify(req));
    };
    cb.afterSend = function(req,opt){
        //if(!FShell.verbose) return;
        //print("REQUEST RETURNED: opt="+JSON.stringify(opt));
        //if(req) print("Request="+WhAjaj.stringify(req));
    };
    cb.onError = function(req,opt){
        //if(!FShell.verbose) return;
        print("ERROR: "+WhAjaj.stringify(opt));
    };
    cb.onResponse = function(resp,req){
        if(!FShell.verbose) return;
        if(resp && resp.resultCode){
            print("Response contains error info: "+resp.resultCode+": "+resp.resultText);
        }
        print("GOT RESPONSE: "+(('string'===typeof resp) ? resp : WhAjaj.stringify(resp)));
    };
    FShell.fossil.HAI({
        onResponse:function(resp,opt){
            assertResponseOK(resp);
        }
    });
})();

/**
    Throws an exception of cond is a falsy value.
*/
function assert(cond, descr){
    descr = descr || "Undescribed condition.";
    if(!cond){
        throw new Error("Assertion failed: "+descr);
    }else{
        //print("Assertion OK: "+descr);
    }
}

/**
    Convenience form of FShell.fossil.sendCommand(command,payload,ajajOpt).
*/
function send(command,payload, ajajOpt){
    FShell.fossil.sendCommand(command,payload,ajajOpt);
}

/**
    Asserts that resp is-a Object, resp.fossil is-a string, and
    !resp.resultCode.
*/
function assertResponseOK(resp){
    assert('object' === typeof resp,'Response is-a object.');
    assert( 'string' === typeof resp.fossil, 'Response contains fossil property.');
    assert( !resp.resultCode, 'resp.resultCode='+resp.resultCode);
}
/**
    Asserts that resp is-a Object, resp.fossil is-a string, and
    resp.resultCode is a truthy value. If expectCode is set then
    it also asserts that (resp.resultCode=='FOSSIL-'+expectCode).
*/
function assertResponseError(resp,expectCode){
    assert('object' === typeof resp,'Response is-a object.');
    assert( 'string' === typeof resp.fossil, 'Response contains fossil property.');
    assert( resp.resultCode, 'resp.resultCode='+resp.resultCode);
    if(expectCode){
        assert( 'FOSSIL-'+expectCode == resp.resultCode, 'Expecting result code '+expectCode );
    }
}

FShell.readline = (typeof readline === 'function') ? (readline) : (function() {
     importPackage(java.io);
     importPackage(java.lang);
     var stdin = new BufferedReader(new InputStreamReader(System['in']));
     var self = this;
     return function(prompt) {
        if(prompt) print(prompt);
        var x = stdin.readLine();
        return null===x ? x : String(x) /*convert to JS string!*/;
     };
}());

FShell.dispatchLine = function(line){
    var av = line.split(' '); // FIXME: to shell-like tokenization. Too tired!
    var cmd = av[0];
    var key, h;
    if('/' == cmd[0]) key = '/';
    else key = this.commandAliases[cmd];
    if(!key) key = cmd;
    h = this.commandHandlers[key];
    if(!h){
        print("Command not known: "+cmd +" ("+key+")");
    }else if(!WhAjaj.isFunction(h)){
        print("Not a function: "+key);
    }
    else{
        print("Sending ["+key+"] command... ");
        try{h(av);}
        catch(e){ print("EXCEPTION: "+e); }
    }
};

FShell.onResponseDefault = function(callback){
    return function(resp,req){
        assertResponseOK(resp);
        print("Payload: "+(resp.payload ? WhAjaj.stringify(resp.payload) : "none"));
        if(WhAjaj.isFunction(callback)){
            callback(resp,req);
        }
    };
};
FShell.commandHandlers = {
    "?":function(args){
        var k;
        print("Available commands...\n");
        var o = FShell.commandHandlers;
        for(k in o){
            if(! o.hasOwnProperty(k)) continue;
            print("\t"+k);
        }
    },
    "/":function(args){
        FShell.fossil.sendCommand('/json'+args[0],undefined,{
            beforeSend:function(req,opt){
                print("Sending to: "+opt.url);
            },
            onResponse:FShell.onResponseDefault()
        });
    },
    "eval":function(args){
        eval(args.join(' '));
    },
    "login":function(args){
        FShell.fossil.login(args[1], args[2], {
            onResponse:FShell.onResponseDefault()
        });
    },
    "whoami":function(args){
        FShell.fossil.whoami({
            onResponse:FShell.onResponseDefault()
        });
    },
    "HAI":function(args){
        FShell.fossil.HAI({
            onResponse:FShell.onResponseDefault()
        });
    }

};
FShell.commandAliases = {
    "li":"login",
    "lo":"logout",
    "who":"whoami",
    "hi":"HAI",
    "tci":"/timeline/ci?limit=3"
};
FShell.mainLoop = function(){
    var line;
    var check = /\S/;
    //var isJavaNull = /java\.lang\.null/;
    //print(typeof java.lang['null']);
    while( null != (line=this.readline(this.prompt)) ){
        if(null===line) break /*EOF*/;
        else if( "" === line ) continue;
        //print("Got line: "+line);
        else if(!check.test(line)) continue;
        print('typeof line = '+typeof line);
        this.dispatchLine(line);
        print("");
    }
    print("Bye!");
};

FShell.mainLoop();

Added ajax/i-test/rhino-test.js.
























































































































































































































































































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var TestApp = {
    serverUrl:
        'http://localhost:8080'
        //'http://fjson/cgi-bin/fossil-json.cgi'
        //'http://192.168.1.62:8080'
        //'http://fossil.wanderinghorse.net/repos/fossil-json-java/index.cgi'
        ,
    verbose:true,
    fossilBinary:'fossil',
    wiki:{}
};
(function bootstrap() {
    var srcdir = '../js/';
    var includes = [srcdir+'json2.js',
                    srcdir+'whajaj.js',
                    srcdir+'fossil-ajaj.js'
                    ];
    for( var i in includes ) {
        load(includes[i]);
    }
    WhAjaj.Connector.prototype.sendImpl = WhAjaj.Connector.sendImpls.rhino;
    TestApp.fossil = new FossilAjaj({
        asynchronous:false, /* rhino-based impl doesn't support async or timeout. */
        timeout:0,
        url:TestApp.serverUrl,
        fossilBinary:TestApp.fossilBinary
    });
    var cb = TestApp.fossil.ajaj.callbacks;
    cb.beforeSend = function(req,opt){
        if(!TestApp.verbose) return;
        print("SENDING REQUEST: AJAJ options="+JSON.stringify(opt));
        if(req) print("Request envelope="+WhAjaj.stringify(req));
    };
    cb.afterSend = function(req,opt){
        //if(!TestApp.verbose) return;
        //print("REQUEST RETURNED: opt="+JSON.stringify(opt));
        //if(req) print("Request="+WhAjaj.stringify(req));
    };
    cb.onError = function(req,opt){
        if(!TestApp.verbose) return;
        print("ERROR: "+WhAjaj.stringify(opt));
    };
    cb.onResponse = function(resp,req){
        if(!TestApp.verbose) return;
        print("GOT RESPONSE: "+(('string'===typeof resp) ? resp : WhAjaj.stringify(resp)));
    };

})();

/**
    Throws an exception of cond is a falsy value.
*/
function assert(cond, descr){
    descr = descr || "Undescribed condition.";
    if(!cond){
        print("Assertion FAILED: "+descr);
        throw new Error("Assertion failed: "+descr);
        // aarrgghh. Exceptions are of course swallowed by
        // the AJAX layer, to keep from killing a browser's
        // script environment.
    }else{
        if(TestApp.verbose) print("Assertion OK: "+descr);
    }
}

/**
    Calls func() in a try/catch block and throws an exception if
    func() does NOT throw.
*/
function assertThrows(func, descr){
    descr = descr || "Undescribed condition failed.";
    var ex;
    try{
        func();
    }catch(e){
        ex = e;
    }
    if(!ex){
        throw new Error("Function did not throw (as expected): "+descr);
    }else{
        if(TestApp.verbose) print("Function threw (as expected): "+descr+": "+ex);
    }
}

/**
    Convenience form of TestApp.fossil.sendCommand(command,payload,ajajOpt).
*/
function send(command,payload, ajajOpt){
    TestApp.fossil.sendCommand(command,payload,ajajOpt);
}

/**
    Asserts that resp is-a Object, resp.fossil is-a string, and
    !resp.resultCode.
*/
function assertResponseOK(resp){
    assert('object' === typeof resp,'Response is-a object.');
    assert( 'string' === typeof resp.fossil, 'Response contains fossil property.');
    assert( undefined === resp.resultCode, 'resp.resultCode is not set');
}
/**
    Asserts that resp is-a Object, resp.fossil is-a string, and
    resp.resultCode is a truthy value. If expectCode is set then
    it also asserts that (resp.resultCode=='FOSSIL-'+expectCode).
*/
function assertResponseError(resp,expectCode){
    assert('object' === typeof resp,'Response is-a object.');
    assert( 'string' === typeof resp.fossil, 'Response contains fossil property.');
    assert( !!resp.resultCode, 'resp.resultCode='+resp.resultCode);
    if(expectCode){
        assert( 'FOSSIL-'+expectCode == resp.resultCode, 'Expecting result code '+expectCode );
    }
}

function testHAI(){
    var rs;
    TestApp.fossil.HAI({
        onResponse:function(resp,req){
            rs = resp;
        }
    });
    assertResponseOK(rs);
    TestApp.serverVersion = rs.fossil;
    assert( 'string' === typeof TestApp.serverVersion, 'server version = '+TestApp.serverVersion);
}
testHAI.description = 'Get server version info.';

function testIAmNobody(){
    TestApp.fossil.whoami('/json/whoami');
    assert('nobody' === TestApp.fossil.auth.name, 'User == nobody.' );
    assert(!TestApp.fossil.auth.authToken, 'authToken is not set.' );

}
testIAmNobody.description = 'Ensure that current user is "nobody".';


function testAnonymousLogin(){
    TestApp.fossil.login();
    assert('string' === typeof TestApp.fossil.auth.authToken, 'authToken = '+TestApp.fossil.auth.authToken);
    assert( 'string' === typeof TestApp.fossil.auth.name, 'User name = '+TestApp.fossil.auth.name);
    TestApp.fossil.userName = null;
    TestApp.fossil.whoami('/json/whoami');
    assert( 'string' === typeof TestApp.fossil.auth.name, 'User name = '+TestApp.fossil.auth.name);
}
testAnonymousLogin.description = 'Perform anonymous login.';

function testAnonWiki(){
    var rs;
    TestApp.fossil.sendCommand('/json/wiki/list',undefined,{
        beforeSend:function(req,opt){
            assert( req && (req.authToken==TestApp.fossil.auth.authToken), 'Request envelope contains expected authToken.'  );
        },
        onResponse:function(resp,req){
            rs = resp;
        }
    });
    assertResponseOK(rs);
    assert( (typeof [] === typeof rs.payload) && rs.payload.length,
        "Wiki list seems to be okay.");
    TestApp.wiki.list = rs.payload;

    TestApp.fossil.sendCommand('/json/wiki/get',{
        name:TestApp.wiki.list[0]
    },{
        onResponse:function(resp,req){
            rs = resp;
        }
    });
    assertResponseOK(rs);
    assert(rs.payload.name == TestApp.wiki.list[0], "Fetched page name matches expectations.");
    print("Got first wiki page: "+WhAjaj.stringify(rs.payload));

}
testAnonWiki.description = 'Fetch wiki list as anonymous user.';

function testFetchCheckinArtifact(){
    var art = '18dd383e5e7684ece';
    var rs;
    TestApp.fossil.sendCommand('/json/artifact',{
        'name': art
        },
        {
            onResponse:function(resp,req){
                rs = resp;
            }
        });
    assertResponseOK(rs);
    assert(3 == rs.payload.parents.length, 'Got 3 parent artifacts.');
}
testFetchCheckinArtifact.description = '/json/artifact/CHECKIN';

function testAnonLogout(){
    var rs;
    TestApp.fossil.logout({
        onResponse:function(resp,req){
            rs = resp;
        }
    });
    assertResponseOK(rs);
    print("Ensure that second logout attempt fails...");
    TestApp.fossil.logout({
        onResponse:function(resp,req){
            rs = resp;
        }
    });
    assertResponseError(rs);
}
testAnonLogout.description = 'Log out anonymous user.';

function testExternalProcess(){

    var req = { command:"HAI", requestId:'testExternalProcess()' };
    var args = [TestApp.fossilBinary, 'json', '--json-input', '-'];
    var p = java.lang.Runtime.getRuntime().exec(args);
    var outs = p.getOutputStream();
    var osr = new java.io.OutputStreamWriter(outs);
    var osb = new java.io.BufferedWriter(osr);
    var json = JSON.stringify(req);
    osb.write(json,0, json.length);
    osb.close();
    req = json = outs = osr = osb = undefined;
    var ins = p.getInputStream();
    var isr = new java.io.InputStreamReader(ins);
    var br = new java.io.BufferedReader(isr);
    var line;

    while( null !== (line=br.readLine())){
        print(line);
    }
    br.close();
    isr.close();
    ins.close();
    p.waitFor();
}
testExternalProcess.description = 'Run fossil as external process.';

function testExternalProcessHandler(){
    var aj = TestApp.fossil.ajaj;
    var oldImpl = aj.sendImpl;
    aj.sendImpl = FossilAjaj.rhinoLocalBinarySendImpl;
    var rs;
    TestApp.fossil.sendCommand('/json/HAI',undefined,{
        onResponse:function(resp,opt){
            rs = resp;
        }
    });
    aj.sendImpl = oldImpl;
    assertResponseOK(rs);
    print("Using local fossil binary via AJAX interface, we fetched: "+
        WhAjaj.stringify(rs));
}
testExternalProcessHandler.description = 'Try local fossil binary via AJAX interface.';

(function runAllTests(){
    var testList = [
        testHAI,
        testIAmNobody,
        testAnonymousLogin,
        testAnonWiki,
        testFetchCheckinArtifact,
        testAnonLogout,
        testExternalProcess,
        testExternalProcessHandler
    ];
    var i, f;
    for( i = 0; i < testList.length; ++i ){
        f = testList[i];
        try{
            print("Running test #"+(i+1)+": "+(f.description || "no description."));
            f();
        }catch(e){
            print("Test #"+(i+1)+" failed: "+e);
            throw e;
        }
    }

})();

print("Done! If you don't see an exception message in the last few lines, you win!");

Added ajax/index.html.













































































































































































































































































































































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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>
    <title>Fossil/JSON raw request sending</title>
    <meta http-equiv="content-type" content="text/html;charset=utf-8" />
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script>
    <script type="text/javascript" src="js/whajaj.js"></script>
    <script type="text/javascript" src="js/fossil-ajaj.js"></script>

<style type='text/css'>
th {
  text-align: left;
  background-color: #ececec;
}

.dangerWillRobinson {
    background-color: yellow;
}
</style>

<script type='text/javascript'>
WhAjaj.Connector.options.ajax.url =
/*
    Change this to your CGI/server root path:
*/
     //'http://fjson/cgi-bin/fossil.cgi'
     //'/repos/fossil-sgb/json.cgi'
    '/cgi-bin/fossil-json.cgi'
     ;
var TheApp = {
      response:null,
      sessionID:null,
      jqe:{}/*jqe==jQuery Elements*/,
      ajaxCount:0,
      cgi: new FossilAjaj()
};


TheApp.startAjaxNotif = function()
{
    ++this.ajaxCount;
    TheApp.jqe.responseContainer.removeClass('dangerWillRobinson');
    this.jqe.ajaxNotification.attr( 'title', this.ajaxCount+" pending AJAX operation(s)..." );
    if( 1 == this.ajaxCount ) this.jqe.ajaxNotification.fadeIn();
};

TheApp.endAjaxNotif = function()
{
    --this.ajaxCount;
    this.jqe.ajaxNotification.attr( 'title', this.ajaxCount+" pending AJAX operation(s)..." );
    if( 0 == this.ajaxCount ) this.jqe.ajaxNotification.fadeOut();
};

TheApp.responseContainsError = function(resp) {
    if( resp && resp.resultCode ) {
        //alert("Error response:\n"+JSON.stringify(resp,0,4));
        TheApp.jqe.taResponse.val( "RESPONSE CONTAINS ERROR INFO:\n"+WhAjaj.stringify(resp) );
        //TheApp.jqe.responseContainer.css({backgroundColor:'yellow'});
        //TheApp.jqe.responseContainer.addClass('dangerWillRobinson');
        TheApp.jqe.responseContainer.flash( '255,0,0', 1500 );
        return true;
    }
    return false;
};


TheApp.sendRequest = function() {
    var path = this.jqe.textPath.val();
    var self = this;
    var data = this.jqe.taRequest.val();
    var doPost = (data && data.length);
    var req;
    if( doPost ) try {
        req = JSON.parse(data);
    }
    catch(e) {
        TheApp.jqe.taResponse.val("Request is not valid JSON.\n"+e);
        return;
    }
    if( req ) {
        req.requestId = this.cgi.generateRequestId();
    }
    var self = this;
    var opt = {
        url: WhAjaj.Connector.options.ajax.url + path,
        method: doPost ? 'POST' : 'GET'
    };
    this.cgi.sendRequest( req, opt );
};
jQuery.fn.animateHighlight = function(highlightColor, duration) {
    var highlightBg = highlightColor || "#FFFF9C";
    var animateMs = duration || 1500;
    var originalBg = this.css("backgroundColor");
    this.stop().css("background-color", highlightBg).animate({backgroundColor: originalBg}, animateMs);
};
jQuery.fn.flash = function( color, duration )
{
    var current = this.css( 'color' );
    this.animate( { color: 'rgb(' + color + ')' }, duration / 2);
    this.animate( { color: current }, duration / 2 );
};

function myJsonPCallback(obj){
    alert("JSONP callback got:\n"+WhAjaj.stringify(obj));
}

jQuery(document).ready(function(){
    var ids = [// list of HTML element IDs we use often.
        'btnSend',
        'ajaxNotification',
        'currentAuthToken',
        'responseContainer',
        'taRequest',
        'taRequestOpt',
        'taResponse',
        'textPath',
        'timer'
    ];
    var i, k;
    for( i = 0; i < ids.length; ++i ) {
        k = ids[i];
        TheApp.jqe[k] = jQuery('#'+k);
    }
    TheApp.jqe.textPath.
        keyup(function(event){
            if(event.keyCode == 13){
                TheApp.sendRequest();
            }
        });
    TheApp.timer = {
        _tstart:0,_tend:0,duration:0,
        start:function(){
            this._tstart = (new Date()).getTime();
        },
        end:function(){
            this._tend = (new Date()).getTime();
            return this.duration = this._tend - this._tstart;
        }
    };

    var ajcb = TheApp.cgi.ajaj.callbacks;
    ajcb.beforeSend = function(req,opt) {
        TheApp.timer.start();
        var val =
            req ?
            (('string'===typeof req) ? req : WhAjaj.stringify(req))
            : '';
        TheApp.jqe.taResponse.val('');
        TheApp.jqe.taRequest.val( val );
        TheApp.jqe.taRequestOpt.val( opt ? WhAjaj.stringify(opt) : '' );
        TheApp.startAjaxNotif();
    };
    ajcb.afterSend = function(req,opt) {
        TheApp.timer.end();
        TheApp.endAjaxNotif();
        TheApp.jqe.timer.text( "(Round-trip time (incl. JS overhead): "+TheApp.timer.duration+'ms)' );
    };
    ajcb.onResponse = function(resp,req, opt) {
        var val;
        if(this.jsonp) return /*was already handled*/;
        try {
            val = WhAjaj.stringify(resp);
        }
        catch(e) {
            val = WhAjaj.stringify(e)
        }
        //alert("onResponse this:"+WhAjaj.stringify(this));
        //alert("val="+val);
        // FIXME: this.url is hosed for login because of how i overload onResponse()
        if( opt.url ) TheApp.jqe.textPath.val(opt.url.replace(WhAjaj.Connector.options.ajax.url,''));
        TheApp.jqe.taResponse.val( val );
    };
    ajcb.onError = function(req,opt) {
        TheApp.jqe.taResponse.val( "ERROR SENDING REQUEST:\n"+WhAjaj.stringify(opt) );
    };

    TheApp.cgi.onLogin = function(){
      TheApp.jqe.taResponse.val( "Logged in:\n"+WhAjaj.stringify(this.auth));
      TheApp.jqe.currentAuthToken.html("Logged in: "+WhAjaj.stringify(this.auth));
    };
    TheApp.cgi.onLogout = function(){
      TheApp.jqe.taResponse.val( "Logged out!" );
      TheApp.jqe.currentAuthToken.text("Not logged in");
    };
    TheApp.cgi.whoami();
    jQuery('#headerArea').click(function(){
        jQuery(this).slideUp('fast',function(){
            jQuery(this).remove();
        });
    });
});

</script>

</head>

<body>
<span id='ajaxNotification'></span>
<div id='headerArea'>
<h1>You know, for sending raw JSON requests to Fossil...</h1>

If you're actually using this page, then you know what you're doing and don't
need help text, hoverhelp, and a snazzy interface.

<br><br>


JSON API docs: <a href='https://docs.google.com/document/d/1fXViveNhDbiXgCuE7QDXQOKeFzf2qNUkBEgiUvoqFN4/edit'>https://docs.google.com/document/d/1fXViveNhDbiXgCuE7QDXQOKeFzf2qNUkBEgiUvoqFN4/edit</a>

</div><!-- #headerArea -->
See also: <a href='wiki-editor.html'>prototype wiki editor</a>.

<h2>Request...</h2>

Path: <input type='text' size='40' id='textPath' value='/json/HAI'/>
<input type='button' value='Send...' id='btnSend' onclick='TheApp.sendRequest()' /><br/>
If the POST textarea is not empty then it will be posted with the request.
<hr/>
<strong>Quick-posts:</strong><br/>
<input type='button' value='HAI' onclick='TheApp.cgi.HAI()' />
<input type='button' value='HAI JSONP' onclick='TheApp.cgi.sendCommand("/json/HAI",undefined,{jsonp:"myJsonPCallback"});' />
<input type='button' value='version' onclick='TheApp.cgi.sendCommand("/json/version")' />
<input type='button' value='stat' onclick='TheApp.cgi.sendCommand("/json/stat?full=0")' />
<input type='button' value='whoami' onclick='TheApp.cgi.whoami()' />
<input type='button' value='cap' onclick='TheApp.cgi.sendCommand("/json/cap")' />
<input type='button' value='resultCodes' onclick='TheApp.cgi.sendCommand("/json/resultCodes")' />
<input type='button' value='g' onclick='TheApp.cgi.sendCommand("/json/g")' />

<br/>

<input type='button' value='branch/list' onclick='TheApp.cgi.sendCommand("/json/branch/list")' />
<input type='button' value='timeline/ci' onclick='TheApp.cgi.sendCommand("/json/timeline/ci?files=true")' />
<input type='button' value='timeline/wiki' onclick='TheApp.cgi.sendCommand("/json/timeline/wiki")' />
<input type='button' value='timeline/ticket' onclick='TheApp.cgi.sendCommand("/json/timeline/ticket")' />
<input type='button' value='timeline/branch' onclick='TheApp.cgi.sendCommand("/json/timeline/branch")' />

<br/>

<input type='button' value='wiki/list' onclick='TheApp.cgi.sendCommand("/json/wiki/list")' />
<input type='button' value='wiki/list verbose' onclick='TheApp.cgi.sendCommand("/json/wiki/list",{verbose:1})' />
<input type='button' value='wiki/get Fossil' onclick='TheApp.cgi.sendCommand("/json/wiki/get",{name:"Fossil"})' />
<input type='button' value='wiki/get/Fossil' onclick='TheApp.cgi.sendCommand("/json/wiki/get/Fossil")' />
<input type='button' value='wiki/diff' onclick='TheApp.cgi.sendCommand("/json/wiki/diff/e32ccdcda59e930c77c/e15992f475760cdf3a9")' />

<br/>

<input type='button' value='user/list' onclick='TheApp.cgi.sendCommand("/json/user/list")' />
<input type='button' value='user/get' onclick='TheApp.cgi.sendCommand("/json/user/get?name=anonymous")' />
<input type='button' value='tag/list' onclick='TheApp.cgi.sendCommand("/json/tag/list?includeTickets=false&raw=false")' />
<input type='button' value='tag/list/json' onclick='TheApp.cgi.sendCommand("/json/tag/list/json?raw=false")' />
<input type='button' value='tag/add'
    onclick='TheApp.cgi.sendCommand("/json/tag/add",{name:"json-add-tag-test",checkin:"json",value:"tag test",propagate:false,raw:false})' />
<input type='button' value='tag/cancel'
    onclick='TheApp.cgi.sendCommand("/json/tag/cancel",{name:"json-add-tag-test",checkin:"json",raw:false})' />
<input type='button' value='tag/find'
    onclick='TheApp.cgi.sendCommand("/json/tag/find",{name:"json",type:"*",raw:false,limit:5})' />

<br/>

<input type='button' value='diff'
    onclick='TheApp.cgi.sendCommand("/json/diff",{v1:"b0e9b45baed6f885",v2:"5f225e261d836287",context:2})' />
<input type='button' value='diff/A/B'
    onclick='TheApp.cgi.sendCommand("/json/diff/b0e9b45baed6f885/5f225e261d836287?context=2")' />

<input type='button' value='query'
    onclick='TheApp.cgi.sendCommand("/json/query?format=o","SELECT * from user")' />

<input type='button' value='report list'
    onclick='TheApp.cgi.sendCommand("/json/report/list")' />
<input type='button' value='report get'
    onclick='TheApp.cgi.sendCommand("/json/report/get",2)' />

<input type='button' value='report run'
    onclick='TheApp.cgi.sendCommand("/json/report/run",{"report":2,"format":"o"})' />

<input type='button' value='config/get' onclick='TheApp.cgi.sendCommand("/json/config/get")' />

<!-- not yet ready...
<input type='button' value='artifact/XYZ' onclick='TheApp.cgi.sendCommand("/json/artifact?uuid=json")' />
-->

<!--
<input type='button' value='get whiki' onclick='TheApp.cgi.getPages("whiki")' />
<input type='button' value='get more' onclick='TheApp.cgi.getPages("HelloWorld/WhikiNews")' />
<input type='button' value='get client data' onclick='TheApp.cgi.getPageClientData("HelloWorld/whiki/WhikiCommands")' />
<input type='button' value='save client data' onclick='TheApp.cgi.savePageClientData({"HelloWorld":[1,3,5]})' />
-->
<hr/>
<b>Login:</b>
<br/>
<input type='button' value='Anon. PW' onclick='TheApp.cgi.sendCommand("/json/anonymousPassword")' />
<input type='button' value='Anon. PW+Login' onclick='TheApp.cgi.login()' />
<br/>
name:<input type='text' id='textUser' value='json-demo' size='12'/>
pw:<input type='password' id='textPassword' value='json-demo' size='12'/>
<input type='button' value='login' onclick='TheApp.cgi.login(jQuery("#textUser").val(),jQuery("#textPassword").val(),{onResponse:TheApp.onLogin})' />
<input type='button' value='logout' onclick='TheApp.cgi.logout()' />
<br/>
<span id='currentAuthToken' style='font-family:monospaced'></span>

<br/>

<hr/>

<table>
    <tr>
        <th>POST data</th>
        <th>Request AJAJ options</th>
    </tr>
    <tr>
        <td width='50%' valign='top'>
            <textarea id='taRequest' rows='10' cols='50'></textarea>
        </td>
        <td width='50%' valign='top'>
            <textarea id='taRequestOpt' rows='10' cols='40' readonly></textarea>
        </td>
    </tr>
    <tr>
        <th colspan='2'>Response <span id='timer'></span></th>
    </tr>
    <tr>
        <td colspan='2' id='responseContainer' valign='top'>
            <textarea id='taResponse' rows='20' cols='80' readonly></textarea>
        </td>
    </tr>
</table>
<div></div>
<div></div>
<div></div>

</body></html>

Added ajax/js/fossil-ajaj.js.



















































































































































































































































































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/**
    This file contains a WhAjaj extension for use with Fossil/JSON.

    Author: Stephan Beal (sgbeal@googlemail.com)

    License: Public Domain
*/

/**
    Constructor for a new Fossil AJAJ client. ajajOpt may be an optional
    object suitable for passing to the WhAjaj.Connector() constructor.

    On returning, this.ajaj is-a WhAjaj.Connector instance which can
    be used to send requests to the back-end (though the convenience
    functions of this class are the preferred way to do it). Clients
    are encouraged to use FossilAjaj.sendCommand() (and friends) instead
    of the underlying WhAjaj.Connector API, since this class' API
    contains Fossil-specific request-calling handling (e.g. of authentication
    info) whereas WhAjaj is more generic.
*/
function FossilAjaj(ajajOpt)
{
    this.ajaj = new WhAjaj.Connector(ajajOpt);
    return this;
}

FossilAjaj.prototype.generateRequestId = function() {
    return this.ajaj.generateRequestId();
};

/**
   Proxy for this.ajaj.sendRequest().
*/
FossilAjaj.prototype.sendRequest = function(req,opt) {
    return this.ajaj.sendRequest(req,opt);
};

/**
    Sends a command to the fossil back-end. Command should be the
    path part of the URL, e.g. /json/stat, payload is a request-specific
    value type (may often be null/undefined). ajajOpt is an optional object
    holding WhAjaj.sendRequest()-compatible options.

    This function constructs a Fossil/JSON request envelope based
    on the given arguments and adds this.auth.authToken and a requestId
    to it.
*/
FossilAjaj.prototype.sendCommand = function(command, payload, ajajOpt) {
    var req;
    ajajOpt = ajajOpt || {};
    if(payload || (this.auth && this.auth.authToken) || ajajOpt.jsonp) {
        req = {
            payload:payload,
            requestId:('function' === typeof this.generateRequestId) ? this.generateRequestId() : undefined,
            authToken:(this.auth ? this.auth.authToken : undefined),
            jsonp:('string' === typeof ajajOpt.jsonp) ? ajajOpt.jsonp : undefined
        };
    }
    ajajOpt.method = req ? 'POST' : 'GET';
    // just for debuggering: ajajOpt.method = 'POST'; if(!req) req={};
    if(command) ajajOpt.url = this.ajaj.derivedOption('url',ajajOpt) + command;
    this.ajaj.sendRequest(req,ajajOpt);
};

/**
    Sends a login request to the back-end.

    ajajOpt is an optional configuration object suitable for passing
    to sendCommand().

    After the response returns, this.auth will be
    set to the response payload.

    If name === 'anonymous' (the default if none is passed in) then this
    function ignores the pw argument and must make two requests - the first
    one gets the captcha code and the second one submits it.
    ajajOpt.onResponse() (if set) is only called for the actual login
    response (the 2nd one), as opposed to being called for both requests.
    However, this.ajaj.callbacks.onResponse() _is_ called for both (because
    it happens at a lower level).

    If this object has an onLogin() function it is called (with
    no arguments) before the onResponse() handler of the login is called
    (that is the 2nd request for anonymous logins) and any exceptions
    it throws are ignored.

*/
FossilAjaj.prototype.login = function(name,pw,ajajOpt) {
    name = name || 'anonymous';
    var self = this;
    var loginReq = {
        name:name,
        password:pw
    };
    ajajOpt = this.ajaj.normalizeAjaxParameters( ajajOpt || {} );
    var oldOnResponse = ajajOpt.onResponse;
    ajajOpt.onResponse = function(resp,req) {
        var thisOpt = this;
        //alert('login response:\n'+WhAjaj.stringify(resp));
        if( resp && resp.payload ) {
            //self.userName = resp.payload.name;
            //self.capabilities = resp.payload.capabilities;
            self.auth = resp.payload;
        }
        if( WhAjaj.isFunction( self.onLogin ) ){
            try{ self.onLogin(); }
            catch(e){}
        }
        if( WhAjaj.isFunction(oldOnResponse) ) {
            oldOnResponse.apply(thisOpt,[resp,req]);
        }
    };
    function doLogin(){
        //alert("Sending login request..."+WhAjaj.stringify(loginReq));
        self.sendCommand('/json/login', loginReq, ajajOpt);
    }
    if( 'anonymous' === name ){
      this.sendCommand('/json/anonymousPassword',undefined,{
          onResponse:function(resp,req){
/*
            if( WhAjaj.isFunction(oldOnResponse) ){
                oldOnResponse.apply(this, [resp,req]);
            };
*/
            if(resp && !resp.resultCode){
                //alert("Got PW. Trying to log in..."+WhAjaj.stringify(resp));
                loginReq.anonymousSeed = resp.payload.seed;
                loginReq.password = resp.payload.password;
                doLogin();
            }
          }
      });
    }
    else doLogin();
};

/**
    Logs out of fossil, invaliding this login token.

    ajajOpt is an optional configuration object suitable for passing
    to sendCommand().

    If this object has an onLogout() function it is called (with
    no arguments) before the onResponse() handler is called.
    IFF the response succeeds then this.auth is unset.
*/
FossilAjaj.prototype.logout = function(ajajOpt) {
    var self = this;
    ajajOpt = this.ajaj.normalizeAjaxParameters( ajajOpt || {} );
    var oldOnResponse = ajajOpt.onResponse;
    ajajOpt.onResponse = function(resp,req) {
        var thisOpt = this;
        self.auth = undefined;
        if( WhAjaj.isFunction( self.onLogout ) ){
            try{ self.onLogout(); }
            catch(e){}
        }
        if( WhAjaj.isFunction(oldOnResponse) ) {
            oldOnResponse.apply(thisOpt,[resp,req]);
        }
    };
    this.sendCommand('/json/logout', undefined, ajajOpt );
};

/**
    Sends a HAI request to the server. /json/HAI is an alias /json/version.

    ajajOpt is an optional configuration object suitable for passing
    to sendCommand().
*/
FossilAjaj.prototype.HAI = function(ajajOpt) {
    this.sendCommand('/json/HAI', undefined, ajajOpt);
};


/**
    Sends a /json/whoami request. Updates this.auth to contain
    the login info, removing them if the response does not contain
    that data.
*/
FossilAjaj.prototype.whoami = function(ajajOpt) {
    var self = this;
    ajajOpt = this.ajaj.normalizeAjaxParameters( ajajOpt || {} );
    var oldOnResponse = ajajOpt.onResponse;
    ajajOpt.onResponse = function(resp,req) {
        var thisOpt = this;
        if( resp && resp.payload ){
            if(!self.auth || (self.auth.authToken!==resp.payload.authToken)){
                self.auth = resp.payload;
                if( WhAjaj.isFunction(self.onLogin) ){
                    self.onLogin();
                }
            }
        }
        else { delete self.auth; }
        if( WhAjaj.isFunction(oldOnResponse) ) {
            oldOnResponse.apply(thisOpt,[resp,req]);
        }
    };
    self.sendCommand('/json/whoami', undefined, ajajOpt);
};

/**
    EXPERIMENTAL concrete WhAjaj.Connector.sendImpl() implementation which
    uses Rhino to connect to a local fossil binary for input and output. Its
    signature and semantics are as described for
    WhAjaj.Connector.prototype.sendImpl(), with a few exceptions and
    additions:

    - It does not support timeouts or asynchronous mode.

    - The args.fossilBinary property must point to the local fossil binary
    (it need not be a complete path if fossil is in the $PATH). This
    function throws (without calling any request callbacks) if
    args.fossilBinary is not set. fossilBinary may be set on
    WhAjaj.Connector.options.ajax, in the FossilAjaj constructor call, as
    the ajax options parameter to any of the FossilAjaj.sendCommand() family
    of functions, or by setting
    aFossilAjajInstance.ajaj.options.fossilBinary on a specific
    FossilAjaj instance.

    - It uses the args.url field to create the "command" property of the
    request, constructs a request envelope, spawns a fossil process in JSON
    mode, feeds it the request envelope, and returns the response envelope
    via the same mechanisms defined for the HTTP-based implementations.

    The interface is otherwise compatible with the "normal"
    FossilAjaj.sendCommand() front-end (it is, however, fossil-specific, and
    not back-end agnostic like the WhAjaj.sendImpl() interface intends).


*/
FossilAjaj.rhinoLocalBinarySendImpl = function(request,args){
    var self = this;
    request = request || {};
    if(!args.fossilBinary){
        throw new Error("fossilBinary is not set on AJAX options!");
    }
    var url = args.url.split('?')[0].split(/\/+/);
    if(url.length>1){
        // 3x shift(): protocol, host, 'json' part of path
        request.command = (url.shift(),url.shift(),url.shift(), url.join('/'));
    }
    delete args.url;
    //print("rhinoLocalBinarySendImpl SENDING: "+WhAjaj.stringify(request));
    var json;
    try{
        var pargs = [args.fossilBinary, 'json', '--json-input', '-'];
        var p = java.lang.Runtime.getRuntime().exec(pargs);
        var outs = p.getOutputStream();
        var osr = new java.io.OutputStreamWriter(outs);
        var osb = new java.io.BufferedWriter(osr);

        json = JSON.stringify(request);
        osb.write(json,0, json.length);
        osb.close();
        var ins = p.getInputStream();
        var isr = new java.io.InputStreamReader(ins);
        var br = new java.io.BufferedReader(isr);
        var line;
        json = [];
        while( null !== (line=br.readLine())){
            json.push(line);
        }
        ins.close();
    }catch(e){
        args.errorMessage = e.toString();
        WhAjaj.Connector.sendHelper.onSendError.apply( self, [request, args] );
        return undefined;
    }
    json = json.join('');
    //print("READ IN JSON: "+json);
    WhAjaj.Connector.sendHelper.onSendSuccess.apply( self, [request, json, args] );
}/*rhinoLocalBinary*/

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/*
    http://www.JSON.org/json2.js
    2009-06-29

    Public Domain.

    NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.

    See http://www.JSON.org/js.html

    This file creates a global JSON object containing two methods: stringify
    and parse.

        JSON.stringify(value, replacer, space)
            value       any JavaScript value, usually an object or array.

            replacer    an optional parameter that determines how object
                        values are stringified for objects. It can be a
                        function or an array of strings.

            space       an optional parameter that specifies the indentation
                        of nested structures. If it is omitted, the text will
                        be packed without extra whitespace. If it is a number,
                        it will specify the number of spaces to indent at each
                        level. If it is a string (such as '\t' or '&nbsp;'),
                        it contains the characters used to indent at each level.

            This method produces a JSON text from a JavaScript value.

            When an object value is found, if the object contains a toJSON
            method, its toJSON method will be called and the result will be
            stringified. A toJSON method does not serialize: it returns the
            value represented by the name/value pair that should be serialized,
            or undefined if nothing should be serialized. The toJSON method
            will be passed the key associated with the value, and this will be
            bound to the object holding the key.

            For example, this would serialize Dates as ISO strings.

                Date.prototype.toJSON = function (key) {
                    function f(n) {
                        // Format integers to have at least two digits.
                        return n < 10 ? '0' + n : n;
                    }

                    return this.getUTCFullYear()   + '-' +
                         f(this.getUTCMonth() + 1) + '-' +
                         f(this.getUTCDate())      + 'T' +
                         f(this.getUTCHours())     + ':' +
                         f(this.getUTCMinutes())   + ':' +
                         f(this.getUTCSeconds())   + 'Z';
                };

            You can provide an optional replacer method. It will be passed the
            key and value of each member, with this bound to the containing
            object. The value that is returned from your method will be
            serialized. If your method returns undefined, then the member will
            be excluded from the serialization.

            If the replacer parameter is an array of strings, then it will be
            used to select the members to be serialized. It filters the results
            such that only members with keys listed in the replacer array are
            stringified.

            Values that do not have JSON representations, such as undefined or
            functions, will not be serialized. Such values in objects will be
            dropped; in arrays they will be replaced with null. You can use
            a replacer function to replace those with JSON values.
            JSON.stringify(undefined) returns undefined.

            The optional space parameter produces a stringification of the
            value that is filled with line breaks and indentation to make it
            easier to read.

            If the space parameter is a non-empty string, then that string will
            be used for indentation. If the space parameter is a number, then
            the indentation will be that many spaces.

            Example:

            text = JSON.stringify(['e', {pluribus: 'unum'}]);
            // text is '["e",{"pluribus":"unum"}]'


            text = JSON.stringify(['e', {pluribus: 'unum'}], null, '\t');
            // text is '[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]'

            text = JSON.stringify([new Date()], function (key, value) {
                return this[key] instanceof Date ?
                    'Date(' + this[key] + ')' : value;
            });
            // text is '["Date(---current time---)"]'


        JSON.parse(text, reviver)
            This method parses a JSON text to produce an object or array.
            It can throw a SyntaxError exception.

            The optional reviver parameter is a function that can filter and
            transform the results. It receives each of the keys and values,
            and its return value is used instead of the original value.
            If it returns what it received, then the structure is not modified.
            If it returns undefined then the member is deleted.

            Example:

            // Parse the text. Values that look like ISO date strings will
            // be converted to Date objects.

            myData = JSON.parse(text, function (key, value) {
                var a;
                if (typeof value === 'string') {
                    a =
/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value);
                    if (a) {
                        return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4],
                            +a[5], +a[6]));
                    }
                }
                return value;
            });

            myData = JSON.parse('["Date(09/09/2001)"]', function (key, value) {
                var d;
                if (typeof value === 'string' &&
                        value.slice(0, 5) === 'Date(' &&
                        value.slice(-1) === ')') {
                    d = new Date(value.slice(5, -1));
                    if (d) {
                        return d;
                    }
                }
                return value;
            });


    This is a reference implementation. You are free to copy, modify, or
    redistribute.

    This code should be minified before deployment.
    See http://javascript.crockford.com/jsmin.html

    USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
    NOT CONTROL.
*/

/*jslint evil: true */

/*members "", "\b", "\t", "\n", "\f", "\r", "\"", JSON, "\\", apply,
    call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours,
    getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join,
    lastIndex, length, parse, prototype, push, replace, slice, stringify,
    test, toJSON, toString, valueOf
*/

// Create a JSON object only if one does not already exist. We create the
// methods in a closure to avoid creating global variables.

var JSON = JSON || {};

(function () {

    function f(n) {
        // Format integers to have at least two digits.
        return n < 10 ? '0' + n : n;
    }

    if (typeof Date.prototype.toJSON !== 'function') {

        Date.prototype.toJSON = function (key) {

            return isFinite(this.valueOf()) ?
                   this.getUTCFullYear()   + '-' +
                 f(this.getUTCMonth() + 1) + '-' +
                 f(this.getUTCDate())      + 'T' +
                 f(this.getUTCHours())     + ':' +
                 f(this.getUTCMinutes())   + ':' +
                 f(this.getUTCSeconds())   + 'Z' : null;
        };

        String.prototype.toJSON =
        Number.prototype.toJSON =
        Boolean.prototype.toJSON = function (key) {
            return this.valueOf();
        };
    }

    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
        escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
        gap,
        indent,
        meta = {    // table of character substitutions
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
        },
        rep;


    function quote(string) {

// If the string contains no control characters, no quote characters, and no
// backslash characters, then we can safely slap some quotes around it.
// Otherwise we must also replace the offending characters with safe escape
// sequences.

        escapable.lastIndex = 0;
        return escapable.test(string) ?
            '"' + string.replace(escapable, function (a) {
                var c = meta[a];
                return typeof c === 'string' ? c :
                    '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
            }) + '"' :
            '"' + string + '"';
    }


    function str(key, holder) {

// Produce a string from holder[key].

        var i,          // The loop counter.
            k,          // The member key.
            v,          // The member value.
            length,
            mind = gap,
            partial,
            value = holder[key];

// If the value has a toJSON method, call it to obtain a replacement value.

        if (value && typeof value === 'object' &&
                typeof value.toJSON === 'function') {
            value = value.toJSON(key);
        }

// If we were called with a replacer function, then call the replacer to
// obtain a replacement value.

        if (typeof rep === 'function') {
            value = rep.call(holder, key, value);
        }

// What happens next depends on the value's type.

        switch (typeof value) {
        case 'string':
            return quote(value);

        case 'number':

// JSON numbers must be finite. Encode non-finite numbers as null.

            return isFinite(value) ? String(value) : 'null';

        case 'boolean':
        case 'null':

// If the value is a boolean or null, convert it to a string. Note:
// typeof null does not produce 'null'. The case is included here in
// the remote chance that this gets fixed someday.

            return String(value);

// If the type is 'object', we might be dealing with an object or an array or
// null.

        case 'object':

// Due to a specification blunder in ECMAScript, typeof null is 'object',
// so watch out for that case.

            if (!value) {
                return 'null';
            }

// Make an array to hold the partial results of stringifying this object value.

            gap += indent;
            partial = [];

// Is the value an array?

            if (Object.prototype.toString.apply(value) === '[object Array]') {

// The value is an array. Stringify every element. Use null as a placeholder
// for non-JSON values.

                length = value.length;
                for (i = 0; i < length; i += 1) {
                    partial[i] = str(i, value) || 'null';
                }

// Join all of the elements together, separated with commas, and wrap them in
// brackets.

                v = partial.length === 0 ? '[]' :
                    gap ? '[\n' + gap +
                            partial.join(',\n' + gap) + '\n' +
                                mind + ']' :
                          '[' + partial.join(',') + ']';
                gap = mind;
                return v;
            }

// If the replacer is an array, use it to select the members to be stringified.

            if (rep && typeof rep === 'object') {
                length = rep.length;
                for (i = 0; i < length; i += 1) {
                    k = rep[i];
                    if (typeof k === 'string') {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
                        }
                    }
                }
            } else {

// Otherwise, iterate through all of the keys in the object.

                for (k in value) {
                    if (Object.hasOwnProperty.call(value, k)) {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
                        }
                    }
                }
            }

// Join all of the member texts together, separated with commas,
// and wrap them in braces.

            v = partial.length === 0 ? '{}' :
                gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' +
                        mind + '}' : '{' + partial.join(',') + '}';
            gap = mind;
            return v;
        }
    }

// If the JSON object does not yet have a stringify method, give it one.

    if (typeof JSON.stringify !== 'function') {
        JSON.stringify = function (value, replacer, space) {

// The stringify method takes a value and an optional replacer, and an optional
// space parameter, and returns a JSON text. The replacer can be a function
// that can replace values, or an array of strings that will select the keys.
// A default replacer method can be provided. Use of the space parameter can
// produce text that is more easily readable.

            var i;
            gap = '';
            indent = '';

// If the space parameter is a number, make an indent string containing that
// many spaces.

            if (typeof space === 'number') {
                for (i = 0; i < space; i += 1) {
                    indent += ' ';
                }

// If the space parameter is a string, it will be used as the indent string.

            } else if (typeof space === 'string') {
                indent = space;
            }

// If there is a replacer, it must be a function or an array.
// Otherwise, throw an error.

            rep = replacer;
            if (replacer && typeof replacer !== 'function' &&
                    (typeof replacer !== 'object' ||
                     typeof replacer.length !== 'number')) {
                throw new Error('JSON.stringify');
            }

// Make a fake root object containing our value under the key of ''.
// Return the result of stringifying the value.

            return str('', {'': value});
        };
    }


// If the JSON object does not yet have a parse method, give it one.

    if (typeof JSON.parse !== 'function') {
        JSON.parse = function (text, reviver) {

// The parse method takes a text and an optional reviver function, and returns
// a JavaScript value if the text is a valid JSON text.

            var j;

            function walk(holder, key) {

// The walk method is used to recursively walk the resulting structure so
// that modifications can be made.

                var k, v, value = holder[key];
                if (value && typeof value === 'object') {
                    for (k in value) {
                        if (Object.hasOwnProperty.call(value, k)) {
                            v = walk(value, k);
                            if (v !== undefined) {
                                value[k] = v;
                            } else {
                                delete value[k];
                            }
                        }
                    }
                }
                return reviver.call(holder, key, value);
            }


// Parsing happens in four stages. In the first stage, we replace certain
// Unicode characters with escape sequences. JavaScript handles many characters
// incorrectly, either silently deleting them, or treating them as line endings.

            cx.lastIndex = 0;
            if (cx.test(text)) {
                text = text.replace(cx, function (a) {
                    return '\\u' +
                        ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
                });
            }

// In the second stage, we run the text against regular expressions that look
// for non-JSON patterns. We are especially concerned with '()' and 'new'
// because they can cause invocation, and '=' because it can cause mutation.
// But just to be safe, we want to reject all unexpected forms.

// We split the second stage into 4 regexp operations in order to work around
// crippling inefficiencies in IE's and Safari's regexp engines. First we
// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
// replace all simple value tokens with ']' characters. Third, we delete all
// open brackets that follow a colon or comma or that begin the text. Finally,
// we look to see that the remaining characters are only whitespace or ']' or
// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.

            if (/^[\],:{}\s]*$/.
test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@').
replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']').
replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {

// In the third stage we use the eval function to compile the text into a
// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
// in JavaScript: it can begin a block or an object literal. We wrap the text
// in parens to eliminate the ambiguity.

                j = eval('(' + text + ')');

// In the optional fourth stage, we recursively walk the new structure, passing
// each name/value pair to a reviver function for possible transformation.

                return typeof reviver === 'function' ?
                    walk({'': j}, '') : j;
            }

// If the text is not JSON parseable, then a SyntaxError is thrown.

            throw new SyntaxError('JSON.parse');
        };
    }
}());

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/**
    This file provides a JS interface into the core functionality of
    JSON-centric back-ends. It sends GET or JSON POST requests to
    a back-end and expects JSON responses. The exact semantics of
    the underlying back-end and overlying front-end are not its concern,
    and it leaves the interpretation of the data up to the client/server
    insofar as possible.

    All functionality is part of a class named WhAjaj, and that class
    acts as namespace for this framework.

    Author: Stephan Beal (http://wanderinghorse.net/home/stephan/)

    License: Public Domain

    This framework is directly derived from code originally found in
    http://code.google.com/p/jsonmessage, and later in
    http://whiki.wanderinghorse.net, where it contained quite a bit
    of application-specific logic. It was eventually (the 3rd time i
    needed it) split off into its own library to simplify inclusion
    into my many mini-projects.
*/


/**
    The WhAjaj function is primarily a namespace, and not intended
    to called or instantiated via the 'new' operator.
*/
function WhAjaj()
{
}

/** Returns a millisecond Unix Epoch timestamp. */
WhAjaj.msTimestamp = function()
{
    return (new Date()).getTime();
};

/** Returns a Unix Epoch timestamp (in seconds) in integer format.

    Reminder to self: (1.1 %1.2) evaluates to a floating-point value
    in JS, and thus this implementation is less than optimal.
*/
WhAjaj.unixTimestamp = function()
{
    var ts = (new Date()).getTime();
    return parseInt( ""+((ts / 1000) % ts) );
};

/**
    Returns true if v is-a Array instance.
*/
WhAjaj.isArray = function( v )
{
    return (v &&
            (v instanceof Array) ||
            (Object.prototype.toString.call(v) === "[object Array]")
            );
    /* Reminders to self:
        typeof [] == "object"
        toString.call([]) == "[object Array]"
        ([]).toString() == empty
    */
};

/**
    Returns true if v is-a Object instance.
*/
WhAjaj.isObject = function( v )
{
    return v &&
        (v instanceof Object) &&
        ('[object Object]' === Object.prototype.toString.apply(v) );
};

/**
    Returns true if v is-a Function instance.
*/
WhAjaj.isFunction = function(obj)
{
    return obj
    && (
    (obj instanceof Function)
    || ('function' === typeof obj)
    || ("[object Function]" === Object.prototype.toString.call(obj))
    )
    ;
};

/**
    Parses window.location.search-style string into an object
    containing key/value pairs of URL arguments (already urldecoded).

    If the str argument is not passed (arguments.length==0) then
    window.location.search.substring(1) is used by default. If
    neither str is passed in nor window exists then false is returned.

    On success it returns an Object containing the key/value pairs
    parsed from the string. Keys which have no value are treated
    has having the boolean true value.

    FIXME: for keys in the form "name[]", build an array of results,
    like PHP does.

*/
WhAjaj.processUrlArgs = function(str) {
    if( 0 === arguments.length ) {
        if( ('undefined' === typeof window) ||
            !window.location ||
            !window.location.search )  return false;
        else str = (''+window.location.search).substring(1);
    }
    if( ! str ) return false;
    str = (''+str).split(/#/,2)[0]; // remove #... to avoid it being added as part of the last value.
    var args = {};
    var sp = str.split(/&+/);
    var rx = /^([^=]+)(=(.+))?/;
    var i, m;
    for( i in sp ) {
        m = rx.exec( sp[i] );
        if( ! m ) continue;
        args[decodeURIComponent(m[1])] = (m[3] ? decodeURIComponent(m[3]) : true);
    }
    return args;
};

/**
    A simple wrapper around JSON.stringify(), using my own personal
    preferred values for the 2nd and 3rd parameters. To globally
    set its indentation level, assign WhAjaj.stringify.indent to
    an integer value (0 for no intendation).

    This function is intended only for human-readable output, not
    generic over-the-wire JSON output (where JSON.stringify(val) will
    produce smaller results).
*/
WhAjaj.stringify = function(val) {
    if( ! arguments.callee.indent ) arguments.callee.indent = 4;
    return JSON.stringify(val,0,arguments.callee.indent);
};

/**
    Each instance of this class holds state information for making
    AJAJ requests to a back-end system. While clients may use one
    "requester" object per connection attempt, for connections to the
    same back-end, using an instance configured for that back-end
    can simplify usage. This class is designed so that the actual
    connection-related details (i.e. _how_ it connects to the
    back-end) may be re-implemented to use a client's preferred
    connection mechanism (e.g. jQuery).

    The optional opt parameter may be an object with any (or all) of
    the properties documented for WhAjaj.Connector.options.ajax.
    Properties set here (or later via modification of the "options"
    property of this object) will be used in calls to
    WhAjaj.Connector.sendRequest(), and these override (normally) any
    options set in WhAjaj.Connector.options.ajax. Note that
    WhAjaj.Connector.sendRequest() _also_ takes an options object,
    and ones passed there will override, for purposes of that one
    request, any options passed in here or defined in
    WhAjaj.Connector.options.ajax. See WhAjaj.Connector.options.ajax
    and WhAjaj.Connector.prototype.sendRequest() for more details
    about the precedence of options.

    Sample usage:

    @code
    // Set up common connection-level options:
    var cgi = new WhAjaj.Connector({
        url: '/cgi-bin/my.cgi',
        timeout:10000,
        onResponse(resp,req) { alert(JSON.stringify(resp,0.4)); },
        onError(req,opt) {
            alert(opt.errorMessage);
        }
    });
    // Any of those options may optionally be set globally in
    // WhAjaj.Connector.options.ajax (onError(), beforeSend(), and afterSend()
    // are often easiest/most useful to set globally).

    // Get list of pages...
    cgi.sendRequest( null, {
        onResponse(resp,req){ alert(WhAjaj.stringify(resp)); }
    });
    @endcode

    For common request types, clients can add functions to this
    object which act as wrappers for backend-specific functionality. As
    a simple example:

    @code
    cgi.login = function(name,pw,ajajOpt) {
        this.sendRequest(
            {command:"json/login",
              name:name,
              password:pw
            }, ajajOpt );
    };
    @endcode

    TODOs:

    - Caching of page-load requests, with a configurable lifetime.

    - Use-cases like the above login() function are a tiny bit
    problematic to implement when each request has a different URL
    path (i know this from the whiki and fossil implementations).
    This is partly a side-effect of design descisions made back in
    the very first days of this code's life. i need to go through
    and see where i can bend those conventions a bit (where it won't
    break my other apps unduly).
*/
WhAjaj.Connector = function(opt)
{
    if(WhAjaj.isObject(opt)) this.options = opt;
    //TODO?: this.$cache = {};
};

/**
    The core options used by WhAjaj.Connector instances for performing
    network operations. These options can (and some _should_)
    be changed by a client application. They can also be changed
    on specific instances of WhAjaj.Connector, but for most applications
    it is simpler to set them here and not have to bother with configuring
    each WhAjaj.Connector instance. Apps which use multiple back-ends at one time,
    however, will need to customize each instance for a given back-end.
*/
WhAjaj.Connector.options = {
    /**
        A (meaningless) prefix to apply to WhAjaj.Connector-generated
        request IDs.
    */
    requestIdPrefix:'WhAjaj.Connector-',
    /**
        Default options for WhAjaj.Connector.sendRequest() connection
        parameters. This object holds only connection-related
        options and callbacks (all optional), and not options
        related to the required JSON structure of any given request.
        i.e. the page name used in a get-page request are not set
        here but are specified as part of the request object.

        These connection options are a "normalized form" of options
        often found in various AJAX libraries like jQuery,
        Prototype, dojo, etc. This approach allows us to swap out
        the real connection-related parts by writing a simple proxy
        which transforms our "normalized" form to the
        backend-specific form. For examples, see the various
        implementations stored in WhAjaj.Connector.sendImpls.

        The following callback options are, in practice, almost
        always set globally to some app-wide defaults:

        - onError() to report errors using a common mechanism.
        - beforeSend() to start a visual activity notification
        - afterSend() to disable the visual activity notification

        However, be aware that if any given WhAjaj.Connector instance is
        given its own before/afterSend callback then those will
        override these. Mixing shared/global and per-instance
        callbacks can potentially lead to confusing results if, e.g.,
        the beforeSend() and afterSend() functions have side-effects
        but are not used with their proper before/after partner.

        TODO: rename this to 'ajaj' (the name is historical). The
        problem with renaming it is is that the word 'ajax' is
        pretty prevelant in the source tree, so i can't globally
        swap it out.
    */
    ajax: {
        /**
            URL of the back-end server/CGI.
        */
        url: '/some/path',

        /**
            Connection method. Some connection-related functions might
            override any client-defined setting.

            Must be one of 'GET' or 'POST'. For custom connection
            implementation, it may optionally be some
            implementation-specified value.

            Normally the API can derive this value automatically - if the
            request uses JSON data it is POSTed, else it is GETted.
        */
        method:'GET',

        /**
            A hint whether to run the operation asynchronously or
            not. Not all concrete WhAjaj.Connector.sendImpl()
            implementations can support this. Interestingly, at
            least one popular AJAX toolkit does not document
            supporting _synchronous_ AJAX operations. All common
            browser-side implementations support async operation, but
            non-browser implementations might not.
        */
        asynchronous:true,

        /**
            A HTTP authentication login name for the AJAX
            connection. Not all concrete WhAjaj.Connector.sendImpl()
            implementations can support this.
        */
        loginName:undefined,

        /**
            An HTTP authentication login password for the AJAJ
            connection. Not all concrete WhAjaj.Connector.sendImpl()
            implementations can support this.
        */
        loginPassword:undefined,

        /**
            A connection timeout, in milliseconds, for establishing
            an AJAJ connection. Not all concrete
            WhAjaj.Connector.sendImpl() implementations can support this.
        */
        timeout:10000,

        /**
            If an AJAJ request receives JSON data from the back-end,
            that data is passed as a plain Object as the response
            parameter (exception: in jsonp mode it is passed a
            string (why???)). The initiating request object is
            passed as the second parameter, but clients can normally
            ignore it (only those which need a way to map specific
            requests to responses will need it). The 3rd parameter
            is the same as the 'this' object for the context of the
            callback, but is provided because the instance-level
            callbacks (set in (WhAjaj.Connector instance).callbacks,
            require it in some cases (because their 'this' is
            different!).

            Note that the response might contain error information
            which comes from the back-end. The difference between
            this error info and the info passed to the onError()
            callback is that this data indicates an
            application-level error, whereas onError() is used to
            report connection-level problems or when the backend
            produces non-JSON data (which, when not in jsonp mode,
            is unexpected and is as fatal to the request as a
            connection error).
        */
        onResponse: function(response, request, opt){},

        /**
            If an AJAX request fails to establish a connection or it
            receives non-JSON data from the back-end, this function
            is called (e.g. timeout error or host name not
            resolvable). It is passed the originating request and the
            "normalized" connection parameters used for that
            request. The connectOpt object "should" (or "might")
            have an "errorMessage" property which describes the
            nature of the problem.

            Clients will almost always want to replace the default
            implementation with something which integrates into
            their application.
        */
        onError: function(request, connectOpt)
        {
            alert('AJAJ request failed:\n'
                +'Connection information:\n'
                +JSON.stringify(connectOpt,0,4)
            );
        },

        /**
            Called before each connection attempt is made. Clients
            can use this to, e.g.,  enable a visual "network activity
            notification" for the user. It is passed the original
            request object and the normalized connection parameters
            for the request. If this function changes opt, those
            changes _are_ applied to the subsequent request. If this
            function throws, neither the onError() nor afterSend()
            callbacks are triggered and WhAjaj.Connector.sendImpl()
            propagates the exception back to the caller.
        */
        beforeSend: function(request,opt){},

        /**
            Called after an AJAJ connection attempt completes,
            regardless of success or failure. Passed the same
            parameters as beforeSend() (see that function for
            details).

            Here's an example of setting up a visual notification on
            ajax operations using jQuery (but it's also easy to do
            without jQuery as well):

            @code
            function startAjaxNotif(req,opt) {
                var me = arguments.callee;
                var c = ++me.ajaxCount;
                me.element.text( c + " pending AJAX operation(s)..." );
                if( 1 == c ) me.element.stop().fadeIn();
            }
            startAjaxNotif.ajaxCount = 0.
            startAjaxNotif.element = jQuery('#whikiAjaxNotification');

            function endAjaxNotif() {
                var c = --startAjaxNotif.ajaxCount;
                startAjaxNotif.element.text( c+" pending AJAX operation(s)..." );
                if( 0 == c ) startAjaxNotif.element.stop().fadeOut();
            }
            @endcode

            Set the beforeSend/afterSend properties to those
            functions to enable the notifications by default.
        */
        afterSend: function(request,opt){},

        /**
            If jsonp is a string then the WhAjaj-internal response
            handling code ASSUMES that the response contains a JSONP-style
            construct and eval()s it after afterSend() but before onResponse().
            In this case, onResponse() will get a string value for the response
            instead of a response object parsed from JSON.
        */
        jsonp:undefined,
        /**
            Don't use yet. Planned future option.
        */
        propagateExceptions:false
    }
};


/**
    WhAjaj.Connector.prototype.callbacks defines callbacks analog
    to the onXXX callbacks defined in WhAjaj.Connector.options.ajax,
    with two notable differences:

    1) these callbacks, if set, are called in addition to any
    request-specific callback. The intention is to allow a framework to set
    "framework-level" callbacks which should be called independently of the
    request-specific callbacks (without interfering with them, e.g.
    requiring special re-forwarding features).

    2) The 'this' object in these callbacks is the Connector instance
    associated with the callback, whereas the "other" onXXX form has its
    "ajax options" object as its this.

    When this API says that an onXXX callback will be called for a request,
    both the request's onXXX (if set) and this one (if set) will be called.
*/
WhAjaj.Connector.prototype.callbacks = {};
/**
    Instance-specific values for AJAJ-level properties (as opposed to
    application-level request properties). Options set here "override" those
    specified in WhAjaj.Connector.options.ajax and are "overridden" by
    options passed to sendRequest().
*/
WhAjaj.Connector.prototype.options = {};


/**
    Tries to find the given key in any of the following, returning
    the first match found: opt, this.options, WhAjaj.Connector.options.ajax.

    Returns undefined if key is not found.
*/
WhAjaj.Connector.prototype.derivedOption = function(key,opt) {
    var v = opt ? opt[key] : undefined;
    if( undefined !== v ) return v;
    else v = this.options[key];
    if( undefined !== v ) return v;
    else v = WhAjaj.Connector.options.ajax[key];
    return v;
};

/**
    Returns a unique string on each call containing a generic
    reandom request identifier string. This is not used by the core
    API but can be used by client code to generate unique IDs for
    each request (if needed).

    The exact format is unspecified and may change in the future.

    Request IDs can be used by clients to "match up" responses to
    specific requests if needed. In practice, however, they are
    seldom, if ever, needed. When passing several concurrent
    requests through the same response callback, it might be useful
    for some clients to be able to distinguish, possibly re-routing
    them through other handlers based on the originating request type.

    If this.options.requestIdPrefix or
    WhAjaj.Connector.options.requestIdPrefix is set then that text
    is prefixed to the returned string.
*/
WhAjaj.Connector.prototype.generateRequestId = function()
{
    if( undefined === arguments.callee.sequence )
    {
        arguments.callee.sequence = 0;
    }
    var pref = this.options.requestIdPrefix || WhAjaj.Connector.options.requestIdPrefix || '';
    return pref +
        WhAjaj.msTimestamp() +
        '/'+(Math.round( Math.random() * 100000000) )+
        ':'+(++arguments.callee.sequence);
};

/**
    Copies (SHALLOWLY) all properties in opt to this.options.
*/
WhAjaj.Connector.prototype.addOptions = function(opt) {
    var k, v;
    for( k in opt ) {
        if( ! opt.hasOwnProperty(k) ) continue /* proactive Prototype kludge! */;
        this.options[k] = opt[k];
    }
    return this.options;
};

/**
    An internal helper object which holds several functions intended
    to simplify the creation of concrete communication channel
    implementations for WhAjaj.Connector.sendImpl(). These operations
    take care of some of the more error-prone parts of ensuring that
    onResponse(), onError(), etc. callbacks are called consistently
    using the same rules.
*/
WhAjaj.Connector.sendHelper = {
    /**
        opt is assumed to be a normalized set of
        WhAjaj.Connector.sendRequest() options. This function
        creates a url by concatenating opt.url and some form of
        opt.urlParam.

        If opt.urlParam is an object or string then it is appended
        to the url. An object is assumed to be a one-dimensional set
        of simple (urlencodable) key/value pairs, and not larger
        data structures. A string value is assumed to be a
        well-formed, urlencoded set of key/value pairs separated by
        '&' characters.

        The new/normalized URL is returned (opt is not modified). If
        opt.urlParam is not set then opt.url is returned (or an
        empty string if opt.url is itself a false value).

        TODO: if opt is-a Object and any key points to an array,
        build up a list of keys in the form "keyname[]". We could
        arguably encode sub-objects like "keyname[subkey]=...", but
        i don't know if that's conventions-compatible with other
        frameworks.
    */
    normalizeURL: function(opt) {
        var u = opt.url || '';
        if( opt.urlParam ) {
            var addQ = (u.indexOf('?') >= 0) ? false : true;
            var addA = addQ ? false : ((u.indexOf('&')>=0) ? true : false);
            var tail = '';
            if( WhAjaj.isObject(opt.urlParam) ) {
                var li = [], k;
                for( k in opt.urlParam) {
                    li.push( k+'='+encodeURIComponent( opt.urlParam[k] ) );
                }
                tail = li.join('&');
            }
            else if( 'string' === typeof opt.urlParam ) {
                tail = opt.urlParam;
            }
            u = u + (addQ ? '?' : '') + (addA ? '&' : '') + tail;
        }
        return u;
    },
    /**
        Should be called by WhAjaj.Connector.sendImpl()
        implementations after a response has come back. This
        function takes care of most of ensuring that framework-level
        conventions involving WhAjaj.Connector.options.ajax
        properties are followed.

        The request argument must be the original request passed to
        the sendImpl() function. It may legally be null for GET requests.

        The opt object should be the normalized AJAX options used
        for the connection.

        The resp argument may be either a plain Object or a string
        (in which case it is assumed to be JSON).

        The 'this' object for this call MUST be a WhAjaj.Connector
        instance in order for callback processing to work properly.

        This function takes care of the following:

        - Calling opt.afterSend()

        - If resp is a string, de-JSON-izing it to an object.

        - Calling opt.onResponse()

        - Calling opt.onError() in several common (potential) error
        cases.

        - If resp is-a String and opt.jsonp then resp is assumed to be
        a JSONP-form construct and is eval()d BEFORE opt.onResponse()
        is called. It is arguable to eval() it first, but the logic
        integrates better with the non-jsonp handler.

        The sendImpl() should return immediately after calling this.

        The sendImpl() must call only one of onSendSuccess() or
        onSendError(). It must call one of them or it must implement
        its own response/error handling, which is not recommended
        because getting the documented semantics of the
        onError/onResponse/afterSend handling correct can be tedious.
    */
    onSendSuccess:function(request,resp,opt) {
        var cb = this.callbacks || {};
        if( WhAjaj.isFunction(cb.afterSend) ) {
            try {cb.afterSend( request, opt );}
            catch(e){}
        }
        if( WhAjaj.isFunction(opt.afterSend) ) {
            try {opt.afterSend( request, opt );}
            catch(e){}
        }
        function doErr(){
            if( WhAjaj.isFunction(cb.onError) ) {
                try {cb.onError( request, opt );}
                catch(e){}
            }
            if( WhAjaj.isFunction(opt.onError) ) {
                try {opt.onError( request, opt );}
                catch(e){}
            }
        }
        if( ! resp ) {
            opt.errorMessage = "Sending of request succeeded but returned no data!";
            doErr();
            return false;
        }

        if( 'string' === typeof resp ) {
            try {
                resp = opt.jsonp ? eval(resp) : JSON.parse(resp);
            } catch(e) {
                opt.errorMessage = e.toString();
                doErr();
                return;
            }
        }
        try {
            if( WhAjaj.isFunction( cb.onResponse  ) ) {
                cb.onResponse( resp, request, opt );
            }
            if( WhAjaj.isFunction( opt.onResponse  ) ) {
                opt.onResponse( resp, request, opt );
            }
            return true;
        }
        catch(e) {
            opt.errorMessage = "Exception while handling inbound JSON response:\n"
                + e
                +"\nOriginal response data:\n"+JSON.stringify(resp,0,2)
                ;
            ;
            doErr();
            return false;
        }
    },
   /**
        Should be called by sendImpl() implementations after a response
        has failed to connect (e.g. could not resolve host or timeout
        reached). This function takes care of most of ensuring that
        framework-level conventions involving WhAjaj.Connector.options.ajax
        properties are followed.

        The request argument must be the original request passed to
        the sendImpl() function. It may legally be null for GET
        requests.

        The 'this' object for this call MUST be a WhAjaj.Connector
        instance in order for callback processing to work properly.

        The opt object should be the normalized AJAX options used
        for the connection. By convention, the caller of this
        function "should" set opt.errorMessage to contain a
        human-readable description of the error.

        The sendImpl() should return immediately after calling this. The
        return value from this function is unspecified.
    */
    onSendError: function(request,opt) {
        var cb = this.callbacks || {};
        if( WhAjaj.isFunction(cb.afterSend) ) {
            try {cb.afterSend( request, opt );}
            catch(e){}
        }
        if( WhAjaj.isFunction(opt.afterSend) ) {
            try {opt.afterSend( request, opt );}
            catch(e){}
        }
        if( WhAjaj.isFunction( cb.onError ) ) {
            try {cb.onError( request, opt );}
            catch(e) {/*ignore*/}
        }
        if( WhAjaj.isFunction( opt.onError ) ) {
            try {opt.onError( request, opt );}
            catch(e) {/*ignore*/}
        }
    }
};

/**
    WhAjaj.Connector.sendImpls holds several concrete
    implementations of WhAjaj.Connector.prototype.sendImpl(). To use
    a specific implementation by default assign
    WhAjaj.Connector.prototype.sendImpl to one of these functions.

    The functions defined here require that the 'this' object be-a
    WhAjaj.Connector instance.

    Historical notes:

    a) We once had an implementation based on Prototype, but that
    library just pisses me off (they change base-most types'
    prototypes, introducing side-effects in client code which
    doesn't even use Prototype). The Prototype version at the time
    had a serious toJSON() bug which caused empty arrays to
    serialize as the string "[]", which broke a bunch of my code.
    (That has been fixed in the mean time, but i don't use
    Prototype.)

    b) We once had an implementation for the dojo library,

    If/when the time comes to add Prototype/dojo support, we simply
    need to port:

    http://code.google.com/p/jsonmessage/source/browse/trunk/lib/JSONMessage/JSONMessage.inc.js

    (search that file for "dojo" and "Prototype") to this tree. That
    code is this code's generic grandfather and they are still very
    similar, so a port is trivial.

*/
WhAjaj.Connector.sendImpls = {
    /**
        This is a concrete implementation of
        WhAjaj.Connector.prototype.sendImpl() which uses the
        environment's native XMLHttpRequest class to send whiki
        requests and fetch the responses.

        The only argument must be a connection properties object, as
        constructed by WhAjaj.Connector.normalizeAjaxParameters().

        If window.firebug is set then window.firebug.watchXHR() is
        called to enable monitoring of the XMLHttpRequest object.

        This implementation honors the loginName and loginPassword
        connection parameters.

        Returns the XMLHttpRequest object.

        This implementation requires that the 'this' object be-a
        WhAjaj.Connector.

        This implementation uses setTimeout() to implement the
        timeout support, and thus the JS engine must provide that
        functionality.
    */
    XMLHttpRequest: function(request, args)
    {
        var json = WhAjaj.isObject(request) ? JSON.stringify(request) : request;
        var xhr = new XMLHttpRequest();
        var startTime = (new Date()).getTime();
        var timeout = args.timeout || 10000/*arbitrary!*/;
        var hitTimeout = false;
        var done = false;
        var tmid /* setTimeout() ID */;
        var whself = this;
        function handleTimeout()
        {
            hitTimeout = true;
            if( ! done )
            {
                var now = (new Date()).getTime();
                try { xhr.abort(); } catch(e) {/*ignore*/}
                // see: http://www.w3.org/TR/XMLHttpRequest/#the-abort-method
                args.errorMessage = "Timeout of "+timeout+"ms reached after "+(now-startTime)+"ms during AJAX request.";
                WhAjaj.Connector.sendHelper.onSendError.apply( whself, [request, args] );
            }
            return;
        }
        function onStateChange()
        { // reminder to self: apparently 'this' is-not-a XHR :/
            if( hitTimeout )
            { /* we're too late - the error was already triggered. */
                return;
            }

            if( 4 == xhr.readyState )
            {
                done = true;
                if( tmid )
                {
                    clearTimeout( tmid );
                    tmid = null;
                }
                if( (xhr.status >= 200) && (xhr.status < 300) )
                {
                    WhAjaj.Connector.sendHelper.onSendSuccess.apply( whself, [request, xhr.responseText, args] );
                    return;
                }
                else
                {
                    if( undefined === args.errorMessage )
                    {
                        args.errorMessage = "Error sending a '"+args.method+"' AJAX request to "
                                +"["+args.url+"]: "
                                +"Status text=["+xhr.statusText+"]"
                            ;
                        WhAjaj.Connector.sendHelper.onSendError.apply( whself, [request, args] );
                    }
                    else { /*maybe it was was set by the timeout handler. */ }
                    return;
                }
            }
        };

        xhr.onreadystatechange = onStateChange;
        if( ('undefined'!==(typeof window)) && ('firebug' in window) && ('watchXHR' in window.firebug) )
        { /* plug in to firebug lite's XHR monitor... */
            window.firebug.watchXHR( xhr );
        }
        try
        {
            //alert( JSON.stringify( args  ));
            function xhrOpen()
            {
                if( ('loginName' in args) && args.loginName )
                {
                    xhr.open( args.method, args.url, args.asynchronous, args.loginName, args.loginPassword );
                }
                else
                {
                    xhr.open( args.method, args.url, args.asynchronous  );
                }
            }
            if( json && ('POST' ===  args.method.toUpperCase()) )
            {
                xhrOpen();
                xhr.setRequestHeader("Content-Type", "application/json; charset=utf-8");
                // Google Chrome warns that it refuses to set these
                // "unsafe" headers (his words, not mine):
                // xhr.setRequestHeader("Content-length", json.length);
                // xhr.setRequestHeader("Connection", "close");
                xhr.send( json );
            }
            else /* assume GET */
            {
                xhrOpen();
                xhr.send(null);
            }
            tmid = setTimeout( handleTimeout, timeout );
            return xhr;
        }
        catch(e)
        {
            args.errorMessage = e.toString();
            WhAjaj.Connector.sendHelper.onSendError.apply( whself, [request, args] );
            return undefined;
        }
    }/*XMLHttpRequest()*/,
    /**
        This is a concrete implementation of
        WhAjaj.Connector.prototype.sendImpl() which uses the jQuery
        AJAX API to send requests and fetch the responses.

        The first argument may be either null/false, an Object
        containing toJSON-able data to post to the back-end, or such an
        object in JSON string form.

        The second argument must be a connection properties object, as
        constructed by WhAjaj.Connector.normalizeAjaxParameters().

        If window.firebug is set then window.firebug.watchXHR() is
        called to enable monitoring of the XMLHttpRequest object.

        This implementation honors the loginName and loginPassword
        connection parameters.

        Returns the XMLHttpRequest object.

        This implementation requires that the 'this' object be-a
        WhAjaj.Connector.
    */
    jQuery:function(request,args)
    {
        var data = request || undefined;
        var whself = this;
        if( data ) {
            if('string'!==typeof data) {
                try {
                    data = JSON.stringify(data);
                }
                catch(e) {
                    WhAjaj.Connector.sendHelper.onSendError.apply( whself, [request, args] );
                    return;
                }
            }
        }
        var ajopt = {
            url: args.url,
            data: data,
            type: args.method,
            async: args.asynchronous,
            password: (undefined !== args.loginPassword) ? args.loginPassword : undefined,
            username: (undefined !== args.loginName) ? args.loginName : undefined,
            contentType: 'application/json; charset=utf-8',
            error: function(xhr, textStatus, errorThrown)
            {
                //this === the options for this ajax request
                args.errorMessage = "Error sending a '"+ajopt.type+"' request to ["+ajopt.url+"]: "
                        +"Status text=["+textStatus+"]"
                        +(errorThrown ? ("Error=["+errorThrown+"]") : "")
                    ;
                WhAjaj.Connector.sendHelper.onSendError.apply( whself, [request, args] );
            },
            success: function(data)
            {
                WhAjaj.Connector.sendHelper.onSendSuccess.apply( whself, [request, data, args] );
            },
            /* Set dataType=text instead of json to keep jQuery from doing our carefully
                written response handling for us.
            */
            dataType: 'text'
        };
        if( undefined !== args.timeout )
        {
            ajopt.timeout = args.timeout;
        }
        try
        {
            return jQuery.ajax(ajopt);
        }
        catch(e)
        {
            args.errorMessage = e.toString();
            WhAjaj.Connector.sendHelper.onSendError.apply( whself, [request, args] );
            return undefined;
        }
    }/*jQuery()*/,
    /**
        This is a concrete implementation of
        WhAjaj.Connector.prototype.sendImpl() which uses the rhino
        Java API to send requests and fetch the responses.

        Limitations vis-a-vis the interface:

        - timeouts are not supported.

        - asynchronous mode is not supported because implementing it
        requires the ability to kill a running thread (which is deprecated
        in the Java API).

        TODOs:

        - add socket timeouts.

        - support HTTP proxy.

        The Java APIs support this, it just hasn't been added here yet.
    */
    rhino:function(request,args)
    {
        var self = this;
        var data = request || undefined;
        if( data ) {
            if('string'!==typeof data) {
                try {
                    data = JSON.stringify(data);
                }
                catch(e) {
                    WhAjaj.Connector.sendHelper.onSendError.apply( self, [request, args] );
                    return;
                }
            }
        }
        var url;
        var con;
        var IO = new JavaImporter(java.io);
        var wr;
        var rd, ln, json = [];
        function setIncomingCookies(list){
            if(!list || !list.length) return;
            if( !self.cookies ) self.cookies = {};
            var k, v, i;
            for( i = 0; i < list.length; ++i ){
                v = list[i].split('=',2);
                k = decodeURIComponent(v[0])
                v = v[0] ? decodeURIComponent(v[0].split(';',2)[0]) : null;
                //print("RECEIVED COOKIE: "+k+"="+v);
                if(!v) {
                    delete self.cookies[k];
                    continue;
                }else{
                    self.cookies[k] = v;
                }
            }
        };
        function setOutboundCookies(conn){
            if(!self.cookies) return;
            var k, v;
            for( k in self.cookies ){
                if(!self.cookies.hasOwnProperty(k)) continue /*kludge for broken JS libs*/;
                v = self.cookies[k];
                conn.addRequestProperty("Cookie", encodeURIComponent(k)+'='+encodeURIComponent(v));
                //print("SENDING COOKIE: "+k+"="+v);
            }
        };
        try{
            url = new java.net.URL( args.url )
            con = url.openConnection(/*FIXME: add proxy support!*/);
            con.setRequestProperty("Accept-Charset","utf-8");
            setOutboundCookies(con);
            if(data){
                con.setRequestProperty("Content-Type","application/json; charset=utf-8");
                con.setDoOutput( true );
                wr = new IO.OutputStreamWriter(con.getOutputStream())
                wr.write(data);
                wr.flush();
                wr.close();
                wr = null;
                //print("POSTED: "+data);
            }
            rd = new IO.BufferedReader(new IO.InputStreamReader(con.getInputStream()));
            //var skippedHeaders = false;
            while ((line = rd.readLine()) !== null) {
                //print("LINE: "+line);
                //if(!line.length && !skippedHeaders){
                //    skippedHeaders = true;
                // json = [];
                //    continue;
                //}
                json.push(line);
            }
            setIncomingCookies(con.getHeaderFields().get("Set-Cookie"));
        }catch(e){
            args.errorMessage = e.toString();
            WhAjaj.Connector.sendHelper.onSendError.apply( self, [request, args] );
            return undefined;
        }
        try { if(wr) wr.close(); } catch(e) { /*ignore*/}
        try { if(rd) rd.close(); } catch(e) { /*ignore*/}
        json = json.join('');
        //print("READ IN JSON: "+json);
        WhAjaj.Connector.sendHelper.onSendSuccess.apply( self, [request, json, args] );
    }/*rhino*/
};

/**
    An internal function which takes an object containing properties
    for a WhAjaj.Connector network request. This function creates a new
    object containing a superset of the properties from:

    a) opt
    b) this.options
    c) WhAjaj.Connector.options.ajax

    in that order, using the first one it finds.

    All non-function properties are _deeply_ copied via JSON cloning
    in order to prevent accidental "cross-request pollenation" (been
    there, done that). Functions cannot be cloned and are simply
    copied by reference.

    This function throws if JSON-copying one of the options fails
    (e.g. due to cyclic data structures).

    Reminder to self: this function does not "normalize" opt.urlParam
    by encoding it into opt.url, mainly for historical reasons, but
    also because that behaviour was specifically undesirable in this
    code's genetic father.
*/
WhAjaj.Connector.prototype.normalizeAjaxParameters = function (opt)
{
    var rc = {};
    function merge(k,v)
    {
        if( rc.hasOwnProperty(k) ) return;
        else if( WhAjaj.isFunction(v) ) {}
        else if( WhAjaj.isObject(v) ) v = JSON.parse( JSON.stringify(v) );
        rc[k]=v;
    }
    function cp(obj) {
        if( ! WhAjaj.isObject(obj) ) return;
        var k;
        for( k in obj ) {
            if( ! obj.hasOwnProperty(k) ) continue /* i will always hate the Prototype designers for this. */;
            merge(k, obj[k]);
        }
    }
    cp( opt );
    cp( this.options );
    cp( WhAjaj.Connector.options.ajax );
    // no, not here: rc.url = WhAjaj.Connector.sendHelper.normalizeURL(rc);
    return rc;
};

/**
    This is the generic interface for making calls to a back-end
    JSON-producing request handler. It is a simple wrapper around
    WhAjaj.Connector.prototype.sendImpl(), which just normalizes the
    connection options for sendImpl() and makes sure that
    opt.beforeSend() is (possibly) called.

    The request parameter must either be false/null/empty or a
    fully-populated JSON-able request object (which will be sent as
    unencoded application/json text), depending on the type of
    request being made. It is never semantically legal (in this API)
    for request to be a string/number/true/array value. As a rule,
    only POST requests use the request data. GET requests should
    encode their data in opt.url or opt.urlParam (see below).

    opt must contain the network-related parameters for the request.
    Paramters _not_ set in opt are pulled from this.options or
    WhAjaj.Connector.options.ajax (in that order, using the first
    value it finds). Thus the set of connection-level options used
    for the request are a superset of those various sources.

    The "normalized" (or "superimposed") opt object's URL may be
    modified before the request is sent, as follows:

    if opt.urlParam is a string then it is assumed to be properly
    URL-encoded parameters and is appended to the opt.url. If it is
    an Object then it is assumed to be a one-dimensional set of
    key/value pairs with simple values (numbers, strings, booleans,
    null, and NOT objects/arrays). The keys/values are URL-encoded
    and appended to the URL.

    The beforeSend() callback (see below) can modify the options
    object before the request attempt is made.

    The callbacks in the normalized opt object will be triggered as
    follows (if they are set to Function values):

    - beforeSend(request,opt) will be called before any network
    processing starts. If beforeSend() throws then no other
    callbacks are triggered and this function propagates the
    exception. This function is passed normalized connection options
    as its second parameter, and changes this function makes to that
    object _will_ be used for the pending connection attempt.

    - onError(request,opt) will be called if a connection to the
    back-end cannot be established. It will be passed the original
    request object (which might be null, depending on the request
    type) and the normalized options object. In the error case, the
    opt object passed to onError() "should" have a property called
    "errorMessage" which contains a description of the problem.

    - onError(request,opt) will also be called if connection
    succeeds but the response is not JSON data.

    - onResponse(response,request) will be called if the response
    returns JSON data. That data might hold an error response code -
    clients need to check for that. It is passed the response object
    (a plain object) and the original request object.

    - afterSend(request,opt) will be called directly after the
    AJAX request is finished, before onError() or onResonse() are
    called. Possible TODO: we explicitly do NOT pass the response to
    this function in order to keep the line between the responsibilities
    of the various callback clear (otherwise this could be used the same
    as onResponse()). In practice it would sometimes be useful have the
    response passed to this function, mainly for logging/debugging
    purposes.

    The return value from this function is meaningless because
    AJAX operations tend to take place asynchronously.

*/
WhAjaj.Connector.prototype.sendRequest = function(request,opt)
{
    if( !WhAjaj.isFunction(this.sendImpl) )
    {
        throw new Error("This object has no sendImpl() member function! I don't know how to send the request!");
    }
    var ex = false;
    var av = Array.prototype.slice.apply( arguments, [0] );

    /**
        FIXME: how to handle the error, vis-a-vis- the callbacks, if
        normalizeAjaxParameters() throws? It can throw if
        (de)JSON-izing fails.
    */
    var norm = this.normalizeAjaxParameters( WhAjaj.isObject(opt) ? opt : {} );
    norm.url = WhAjaj.Connector.sendHelper.normalizeURL(norm);
    if( ! request ) norm.method = 'GET';
    var cb = this.callbacks || {};
    if( this.callbacks && WhAjaj.isFunction(this.callbacks.beforeSend) ) {
        this.callbacks.beforeSend( request, norm );
    }
    if( WhAjaj.isFunction(norm.beforeSend) ){
        norm.beforeSend( request, norm );
    }
    //alert( WhAjaj.stringify(request)+'\n'+WhAjaj.stringify(norm));
    try { this.sendImpl( request, norm ); }
    catch(e) { ex = e; }
    if(ex) throw ex;
};

/**
    sendImpl() holds a concrete back-end connection implementation. It
    can be replaced with a custom implementation if one follows the rules
    described throughout this API. See WhAjaj.Connector.sendImpls for
    the concrete implementations included with this API.
*/
//WhAjaj.Connector.prototype.sendImpl = WhAjaj.Connector.sendImpls.XMLHttpRequest;
//WhAjaj.Connector.prototype.sendImpl = WhAjaj.Connector.sendImpls.rhino;
//WhAjaj.Connector.prototype.sendImpl = WhAjaj.Connector.sendImpls.jQuery;

if( 'undefined' !== typeof jQuery ){
    WhAjaj.Connector.prototype.sendImpl = WhAjaj.Connector.sendImpls.jQuery;
}
else {
    WhAjaj.Connector.prototype.sendImpl = WhAjaj.Connector.sendImpls.XMLHttpRequest;
}

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>
    <title>Fossil/JSON Wiki Editor Prototype</title>
    <meta http-equiv="content-type" content="text/html;charset=utf-8" />
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
    <script type="text/javascript" src="js/whajaj.js"></script>
    <script type="text/javascript" src="js/fossil-ajaj.js"></script>

<style type='text/css'>
th {
  text-align: left;
  background-color: #ececec;
}

.dangerWillRobinson {
    background-color: yellow;
}

.wikiPageLink {
    text-decoration: underline;
}
</style>

<script type='text/javascript'>
WhAjaj.Connector.options.ajax.url =
/*
    Change this to your CGI/server root path:
*/
     //'http://fjson/cgi-bin/fossil.cgi'
     //'/repos/fossil-sgb/json.cgi'
    '/cgi-bin/fossil-json.cgi'
     ;
var TheApp = {
      response:null,
      sessionID:null,
      jqe:{}/*jqe==jQuery Elements*/,
      ajaxCount:0,
      cgi: new FossilAjaj(),
      pages:{}
};


TheApp.startAjaxNotif = function()
{
    ++this.ajaxCount;
    TheApp.jqe.responseContainer.removeClass('dangerWillRobinson');
    this.jqe.ajaxNotification.attr( 'title', this.ajaxCount+" pending AJAX operation(s)..." );
    if( 1 == this.ajaxCount ) this.jqe.ajaxNotification.fadeIn();
};

TheApp.endAjaxNotif = function()
{
    --this.ajaxCount;
    this.jqe.ajaxNotification.attr( 'title', this.ajaxCount+" pending AJAX operation(s)..." );
    if( 0 == this.ajaxCount ) this.jqe.ajaxNotification.fadeOut();
};

TheApp.responseContainsError = function(resp) {
    if( !resp || resp.resultCode ) {
        //alert("Error response:\n"+JSON.stringify(resp,0,4));
        TheApp.jqe.taResponse.val( "RESPONSE CONTAINS ERROR INFO:\n"+WhAjaj.stringify(resp) );
        //TheApp.jqe.responseContainer.css({backgroundColor:'yellow'});
        //TheApp.jqe.responseContainer.addClass('dangerWillRobinson');
        TheApp.jqe.responseContainer.flash( '255,0,0', 1500 );
        return true;
    }
    return false;
};


TheApp.sendRequest = function() {
    var path = this.jqe.textPath.val();
    var self = this;
    var data = this.jqe.pageListArea.val();
    var doPost = (data && data.length);
    var req;
    if( doPost ) try {
        req = JSON.parse(data);
    }
    catch(e) {
        TheApp.jqe.taResponse.val("Request is not valid JSON.\n"+e);
        return;
    }
    if( req ) {
        req.requestId = this.cgi.generateRequestId();
    }
    var self = this;
    var opt = {
        url: WhAjaj.Connector.options.ajax.url + path,
        method: doPost ? 'POST' : 'GET'
    };
    this.cgi.sendRequest( req, opt );
};
jQuery.fn.animateHighlight = function(highlightColor, duration) {
    var highlightBg = highlightColor || "#FFFF9C";
    var animateMs = duration || 1500;
    var originalBg = this.css("backgroundColor");
    this.stop().css("background-color", highlightBg).animate({backgroundColor: originalBg}, animateMs);
};
jQuery.fn.flash = function( color, duration )
{
    var current = this.css( 'color' );
    this.animate( { color: 'rgb(' + color + ')' }, duration / 2);
    this.animate( { color: current }, duration / 2 );
};

jQuery(document).ready(function(){
    var ids = [
        'btnSend',
        'ajaxNotification',
        'currentAuthToken',
        'responseContainer',
        'spanPageName',
        'pageListArea',
        'taPageContent',
        'taResponse',
        'textPath', // list of HTML element IDs we use often.
        'timer'
    ];
    var i, k;
    for( i = 0; i < ids.length; ++i ) {
        k = ids[i];
        TheApp.jqe[k] = jQuery('#'+k);
    }
    TheApp.jqe.textPath.
        keyup(function(event){
            if(event.keyCode == 13){
                TheApp.sendRequest();
            }
        });
    TheApp.timer = {
        _tstart:0,_tend:0,duration:0,
        start:function(){
            this._tstart = (new Date()).getTime();
        },
        end:function(){
            this._tend = (new Date()).getTime();
            return this.duration = this._tend - this._tstart;
        }
    };
    var ajcb = TheApp.cgi.ajaj.callbacks;
    ajcb.beforeSend = TheApp.beforeSend = function(req,opt) {
        TheApp.timer.start();
        var val =
            req ?
            (('string'===typeof req) ? req : WhAjaj.stringify(req))
            : '';
        TheApp.jqe.taResponse.val('');
        TheApp.startAjaxNotif();
    };
    ajcb.afterSend = TheApp.afterSend = function(req,opt) {
        TheApp.timer.end();
        TheApp.endAjaxNotif();
        TheApp.jqe.timer.text( "(Round-trip time: "+TheApp.timer.duration+'ms)' );
    };
    ajcb.onResponse = TheApp.onResponse = function(resp,req) {
        var val;
        try {
            val = WhAjaj.stringify(resp);
        }
        catch(e) {
            val = WhAjaj.stringify(e)
        }
        if(resp.resultCode){
            alert("Response contains error info:\n"+val);
        }
        TheApp.jqe.taResponse.val( val );
    };
    ajcb.onError = function(req,opt) {
        TheApp.jqe.taResponse.val( "ERROR SENDING REQUEST:\n"+WhAjaj.stringify(opt) );
    };

    TheApp.jqe.taPageContent.blur(function(){
        var p = TheApp.currentPage;
        if(! p ) return;
        p.content = TheApp.jqe.taPageContent.val();
    });

    TheApp.cgi.onLogin = function(){
      TheApp.jqe.taResponse.val( "Logged in: "+WhAjaj.stringify(this.auth));
      TheApp.jqe.currentAuthToken.text("Logged in: "+WhAjaj.stringify(this.auth));
    };
    TheApp.cgi.onLogout = function(){
      TheApp.jqe.taResponse.val( "Logged out!" );
      TheApp.jqe.currentAuthToken.text("");
    };

    TheApp.showPage = function(name){
        function doShow(page){
            TheApp.currentPage = page;
            TheApp.jqe.spanPageName.text('('+page.name+')');
            TheApp.jqe.taPageContent.val(page.content);
        }
        var p = ('object' === typeof name) ? name : TheApp.pages[name];
        if(('object' === typeof p) && p.content) {
            doShow(p);
            return;
        }
        TheApp.cgi.sendCommand('/json/wiki/get',{
            name:name
        },{
            onResponse:function(resp,req){
                TheApp.onResponse(resp,req);
                if(resp.resultCode) return;
                var p = resp.payload;
                doShow( TheApp.pages[p.name] = p );
            }
        });
    };
    TheApp.refreshPageListView = function(){
        var list = (function(){
            var k, v, li = [];
            for( k in TheApp.pages ){
                if(!TheApp.pages.hasOwnProperty(k)) continue;
                li.push(k);
            }
            return li;
        })();
        var i, p, a, tgt = TheApp.jqe.pageListArea;
        tgt.text('');
        function makeLink(name){
            var link = jQuery('<span></span>');
            link.text(name);
            link.addClass('wikiPageLink');
            link.click(function(e){
                TheApp.showPage(name);
                e.preventDefault();
                return false;
            });
            return link;
        }
        list.sort();
        for( i = 0; i < list.length; ++i ){
            tgt.append(makeLink(list[i]));
            tgt.append('<br/>');
        }
    };

    TheApp.loadPageList = function(){
        TheApp.cgi.sendCommand('/json/wiki/list',null,{
            onResponse:function(resp,req){
                TheApp.onResponse(resp,req);
                if(resp.resultCode) return;
                var i, v, p, ar = resp.payload;
                for( i = 0; i < ar.length; ++i ){
                    v = ar[i];
                    p = TheApp.pages[v];
                    if( !p ) TheApp.pages[v] = {name:v};
                }
                TheApp.refreshPageListView();
            }
        });
        return false /*for click handlers*/;
    }

    TheApp.savePage = function(p){
        p = p || TheApp.currentPage;
        if( 'object' !== typeof p ){
            p = TheApp.pages[p];
        }
        if('object' !== typeof p){
            alert("savePage() argument is not a page object or known page name.");
        }
        TheApp.pages[p.name] = p;
        p.content = TheApp.jqe.taPageContent.val();
        var req = {
            name:p.name,
            content:p.content
        };
        if(! confirm("Really save wiki page ["+p.name+"]?") ) return;
        TheApp.cgi.sendCommand('/json/wiki/'+(p.isNew?'create':'save'),req,{
            onResponse:function(resp,req){
                TheApp.onResponse(resp,req);
                if(resp.resultCode) return;
                delete p.isNew;
                p.timestamp = resp.payload.timestamp;
            }
        });

    };

    TheApp.createNewPage = function(){
        var name = prompt("New page name?");
        if(!name) return;
        var p = {
            name:name,
            content:"New, empty page.",
            isNew:true
        };
        TheApp.pages[name] = p;
        TheApp.refreshPageListView();
        TheApp.showPage(p);
/*
        if(! confirm("Really create new wiki page ["+name+"]?") ) return;
        TheApp.cgi.sendCommand('/json/wiki/create',req,{
            onResponse:function(resp,req){
                TheApp.onResponse(resp,req);
                if(resp.resultCode) return;
                TheApp.pages[p.name] = p;
                TheApp.refreshPageListView();
            }
        });
*/
    };

    TheApp.cgi.whoami();

});

</script>

</head>

<body>
<span id='ajaxNotification'></span>
<h1>PROTOTYPE JSON-based Fossil Wiki Editor</h1>

See also: <a href='index.html'>main test page</a>.

<br>
<b>Login:</b>
<br/>
<input type='button' value='Anon. Login' onclick='TheApp.cgi.login()' />
or:
name:<input type='text' id='textUser' value='json-demo' size='12'/>
pw:<input type='password' id='textPassword' value='json-demo' size='12'/>
<input type='button' value='login' onclick='TheApp.cgi.login(jQuery("#textUser").val(),jQuery("#textPassword").val(),{onResponse:TheApp.onLogin})' />
<input type='button' value='logout' onclick='TheApp.cgi.logout()' />

<br/>
<span id='currentAuthToken' style='font-family:monospaced'></span>

<hr/>
<strong>Quick-posts:</strong><br/>
<input type='button' value='HAI' onclick='TheApp.cgi.HAI()' />
<input type='button' value='stat' onclick='TheApp.cgi.sendCommand("/json/stat")' />
<input type='button' value='whoami' onclick='TheApp.cgi.whoami()' />
<input type='button' value='wiki/list' onclick='TheApp.loadPageList()' />
<!--
<input type='button' value='timeline/ci' onclick='TheApp.cgi.sendCommand("/json/timeline/ci")' />
-->

<!--
<input type='button' value='get whiki' onclick='TheApp.cgi.getPages("whiki")' />
<input type='button' value='get more' onclick='TheApp.cgi.getPages("HelloWorld/WhikiNews")' />
<input type='button' value='get client data' onclick='TheApp.cgi.getPageClientData("HelloWorld/whiki/WhikiCommands")' />
<input type='button' value='save client data' onclick='TheApp.cgi.savePageClientData({"HelloWorld":[1,3,5]})' />
-->
<hr/>

<table>
    <tr>
        <th>Page List</th>
        <th>Content <span id='spanPageName'></span></th>
    </tr>
    <tr>
        <td width='25%' valign='top'>
            <input type='button' value='Create new...' onclick='TheApp.createNewPage()' /><br/>
            <div id='pageListArea'></div>
        </td>
        <td width='75%' valign='top'>
            <input type='button' value='Save' onclick='TheApp.savePage()' /><br/>
            <textarea id='taPageContent' rows='20' cols='60'></textarea>
        </td>
    </tr>
    <tr>
        <th colspan='2'>Response <span id='timer'></span></th>
    </tr>
    <tr>
        <td colspan='2' id='responseContainer'>
            <textarea id='taResponse' rows='20' cols='80' readonly></textarea>
        </td>
    </tr>
</table>
<div></div>
<div></div>
<div></div>

</body></html>

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        <dia:attribute name="obj_bb">
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        <dia:attribute name="orth_orient">
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          <dia:enum val="1"/>
          <dia:enum val="0"/>
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        <dia:attribute name="autorouting">
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        </dia:attribute>
        <dia:attribute name="obj_bb">
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        </dia:attribute>
        <dia:attribute name="conn_endpoints">
          <dia:point val="17.5,15"/>
          <dia:point val="17.5,19"/>
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        <dia:attribute name="numcp">
          <dia:int val="1"/>
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        <dia:attribute name="end_arrow">
          <dia:enum val="22"/>
        </dia:attribute>
        <dia:attribute name="end_arrow_length">
          <dia:real val="0.5"/>
        </dia:attribute>
        <dia:attribute name="end_arrow_width">
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        <dia:attribute name="obj_bb">
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          <dia:point val="8,2"/>
          <dia:point val="15,2"/>
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        <dia:attribute name="end_arrow">
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        </dia:attribute>
        <dia:attribute name="end_arrow_length">
          <dia:real val="0.5"/>
        </dia:attribute>
        <dia:attribute name="end_arrow_width">
          <dia:real val="0.5"/>
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      <dia:group>
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          <dia:attribute name="obj_bb">
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          <dia:attribute name="elem_corner">
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          <dia:attribute name="elem_width">
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          <dia:attribute name="elem_height">
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          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
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        </dia:object>
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          </dia:attribute>
          <dia:attribute name="obj_bb">
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          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Symbol#</dia:string>
              </dia:attribute>
              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
              </dia:attribute>
              <dia:attribute name="pos">
                <dia:point val="6.91375,14.0725"/>
              </dia:attribute>
              <dia:attribute name="color">
                <dia:color val="#000000"/>
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              <dia:attribute name="alignment">
                <dia:enum val="0"/>
              </dia:attribute>
            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
      <dia:object type="Standard - Text" version="1" id="O17">
        <dia:attribute name="obj_pos">
          <dia:point val="18,12"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="18,11.4575;21.06,12.3975"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#belongs to#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="18,12"/>
            </dia:attribute>
            <dia:attribute name="color">
              <dia:color val="#000000"/>
            </dia:attribute>
            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Text" version="1" id="O18">
        <dia:attribute name="obj_pos">
          <dia:point val="18,6"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="18,5.4575;21.06,6.3975"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#belongs to#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="18,6"/>
            </dia:attribute>
            <dia:attribute name="color">
              <dia:color val="#000000"/>
            </dia:attribute>
            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Text" version="1" id="O19">
        <dia:attribute name="obj_pos">
          <dia:point val="18,16"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="18,15.4575;19.03,16.3975"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#has#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="18,16"/>
            </dia:attribute>
            <dia:attribute name="color">
              <dia:color val="#000000"/>
            </dia:attribute>
            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Text" version="1" id="O20">
        <dia:attribute name="obj_pos">
          <dia:point val="21,20"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="21,19.4575;24.06,20.3975"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#belongs to#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="21,20"/>
            </dia:attribute>
            <dia:attribute name="color">
              <dia:color val="#000000"/>
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            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
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      </dia:object>
      <dia:object type="Standard - Text" version="1" id="O21">
        <dia:attribute name="obj_pos">
          <dia:point val="11,20"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="11,19.4575;14.06,20.3975"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#belongs to#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
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            <dia:attribute name="pos">
              <dia:point val="11,20"/>
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            <dia:attribute name="color">
              <dia:color val="#000000"/>
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            <dia:attribute name="alignment">
              <dia:enum val="0"/>
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          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
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      </dia:object>
      <dia:object type="Standard - Text" version="1" id="O22">
        <dia:attribute name="obj_pos">
          <dia:point val="12,15"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="12,14.4575;15.06,15.3975"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#belongs to#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="12,15"/>
            </dia:attribute>
            <dia:attribute name="color">
              <dia:color val="#000000"/>
            </dia:attribute>
            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Text" version="1" id="O23">
        <dia:attribute name="obj_pos">
          <dia:point val="9,12"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="9,11.4575;12.06,12.3975"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#belongs to#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="9,12"/>
            </dia:attribute>
            <dia:attribute name="color">
              <dia:color val="#000000"/>
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            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Text" version="1" id="O24">
        <dia:attribute name="obj_pos">
          <dia:point val="1,13"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="1,12.4575;10.5175,13.3975"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#(Line of Development  /  Branch)#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
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            <dia:attribute name="pos">
              <dia:point val="1,13"/>
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            <dia:attribute name="color">
              <dia:color val="#000000"/>
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            <dia:attribute name="alignment">
              <dia:enum val="0"/>
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          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
    </dia:group>
  </dia:layer>
</dia:diagram>

Added art/CollRev2.dia.

































































































































































































































































































































































































































































































































































































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<?xml version="1.0" encoding="UTF-8"?>
<dia:diagram xmlns:dia="http://www.lysator.liu.se/~alla/dia/">
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            <dia:point val="13,7"/>
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          <dia:attribute name="obj_bb">
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          <dia:attribute name="elem_corner">
            <dia:point val="13,7"/>
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          <dia:attribute name="elem_height">
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          <dia:attribute name="show_background">
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        <dia:object type="Standard - Text" version="1" id="O3">
          <dia:attribute name="obj_pos">
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          <dia:attribute name="obj_bb">
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          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Revision' (Child)#</dia:string>
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              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
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              <dia:attribute name="height">
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              <dia:attribute name="color">
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          <dia:attribute name="valign">
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        <dia:object type="Standard - Box" version="0" id="O4">
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            <dia:point val="2,2"/>
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          <dia:attribute name="obj_bb">
            <dia:rectangle val="1.95,1.95;9.05,4.05"/>
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            <dia:point val="2,2"/>
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            <dia:real val="7"/>
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          <dia:attribute name="elem_height">
            <dia:real val="2"/>
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          <dia:attribute name="show_background">
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        <dia:object type="Standard - Text" version="1" id="O5">
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          <dia:attribute name="obj_bb">
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          <dia:attribute name="text">
            <dia:composite type="text">
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                <dia:string>#File#</dia:string>
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              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
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              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
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              <dia:attribute name="pos">
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              <dia:attribute name="color">
                <dia:color val="#000000"/>
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              <dia:attribute name="alignment">
                <dia:enum val="0"/>
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          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
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        <dia:attribute name="obj_pos">
          <dia:point val="13,8"/>
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        <dia:attribute name="obj_bb">
          <dia:rectangle val="8.83023,6.5028;13.0606,8.06063"/>
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        <dia:attribute name="conn_endpoints">
          <dia:point val="13,8"/>
          <dia:point val="9,7"/>
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        <dia:attribute name="numcp">
          <dia:int val="1"/>
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        <dia:attribute name="end_arrow">
          <dia:enum val="22"/>
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        <dia:attribute name="end_arrow_length">
          <dia:real val="0.5"/>
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        <dia:attribute name="end_arrow_width">
          <dia:real val="0.5"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Line" version="0" id="O7">
        <dia:attribute name="obj_pos">
          <dia:point val="13,2"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="8.83023,1.93937;13.0606,3.4972"/>
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        <dia:attribute name="conn_endpoints">
          <dia:point val="13,2"/>
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        <dia:attribute name="numcp">
          <dia:int val="1"/>
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        <dia:attribute name="end_arrow">
          <dia:enum val="22"/>
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        <dia:attribute name="end_arrow_length">
          <dia:real val="0.5"/>
        </dia:attribute>
        <dia:attribute name="end_arrow_width">
          <dia:real val="0.5"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Line" version="0" id="O8">
        <dia:attribute name="obj_pos">
          <dia:point val="13,2"/>
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        <dia:attribute name="obj_bb">
          <dia:rectangle val="8.57833,1.92972;13.0703,7.35139"/>
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        <dia:attribute name="conn_endpoints">
          <dia:point val="13,2"/>
          <dia:point val="9,7"/>
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        <dia:attribute name="numcp">
          <dia:int val="1"/>
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        <dia:attribute name="end_arrow">
          <dia:enum val="22"/>
        </dia:attribute>
        <dia:attribute name="end_arrow_length">
          <dia:real val="0.5"/>
        </dia:attribute>
        <dia:attribute name="end_arrow_width">
          <dia:real val="0.5"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Line" version="0" id="O9">
        <dia:attribute name="obj_pos">
          <dia:point val="13,8"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="8.57833,2.64861;13.0703,8.07028"/>
        </dia:attribute>
        <dia:attribute name="conn_endpoints">
          <dia:point val="13,8"/>
          <dia:point val="9,3"/>
        </dia:attribute>
        <dia:attribute name="numcp">
          <dia:int val="1"/>
        </dia:attribute>
        <dia:attribute name="end_arrow">
          <dia:enum val="22"/>
        </dia:attribute>
        <dia:attribute name="end_arrow_length">
          <dia:real val="0.5"/>
        </dia:attribute>
        <dia:attribute name="end_arrow_width">
          <dia:real val="0.5"/>
        </dia:attribute>
      </dia:object>
      <dia:group>
        <dia:object type="Standard - Box" version="0" id="O10">
          <dia:attribute name="obj_pos">
            <dia:point val="2,6"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="1.95,5.95;9.05,8.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="2,6"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="7"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
          </dia:attribute>
        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O11">
          <dia:attribute name="obj_pos">
            <dia:point val="3.53147,6.6725"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="3.53147,6.13;7.45147,7.87"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Line of
Development#</dia:string>
              </dia:attribute>
              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
              </dia:attribute>
              <dia:attribute name="pos">
                <dia:point val="3.53147,6.6725"/>
              </dia:attribute>
              <dia:attribute name="color">
                <dia:color val="#000000"/>
              </dia:attribute>
              <dia:attribute name="alignment">
                <dia:enum val="0"/>
              </dia:attribute>
            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
      <dia:object type="Standard - Text" version="1" id="O12">
        <dia:attribute name="obj_pos">
          <dia:point val="18,6"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="18,5.4575;20.0947,6.3975"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string># parent#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="18,6"/>
            </dia:attribute>
            <dia:attribute name="color">
              <dia:color val="#000000"/>
            </dia:attribute>
            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Line" version="0" id="O13">
        <dia:attribute name="obj_pos">
          <dia:point val="18,7"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="17.5,2.95;18.5,7.05"/>
        </dia:attribute>
        <dia:attribute name="conn_endpoints">
          <dia:point val="18,7"/>
          <dia:point val="18,3"/>
        </dia:attribute>
        <dia:attribute name="numcp">
          <dia:int val="1"/>
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        <dia:attribute name="end_arrow">
          <dia:enum val="22"/>
        </dia:attribute>
        <dia:attribute name="end_arrow_length">
          <dia:real val="0.5"/>
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        <dia:attribute name="end_arrow_width">
          <dia:real val="0.5"/>
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      </dia:object>
      <dia:group>
        <dia:object type="Standard - Text" version="1" id="O14">
          <dia:attribute name="obj_pos">
            <dia:point val="22,7"/>
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          <dia:attribute name="obj_bb">
            <dia:rectangle val="22,6.4575;28.4122,8.1975"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#branch parent symbol
       (NULL)#</dia:string>
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              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
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              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
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                <dia:enum val="0"/>
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          <dia:attribute name="valign">
            <dia:enum val="3"/>
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        <dia:object type="Standard - Line" version="0" id="O15">
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            <dia:rectangle val="19.95,7.5;22.05,8.5"/>
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            <dia:point val="20,8"/>
            <dia:point val="22,8"/>
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          <dia:attribute name="numcp">
            <dia:int val="1"/>
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            <dia:enum val="22"/>
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          <dia:attribute name="end_arrow_width">
            <dia:real val="0.5"/>
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        </dia:object>
        <dia:object type="Standard - Polygon" version="0" id="O16">
          <dia:attribute name="obj_pos">
            <dia:point val="23,7"/>
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          <dia:attribute name="obj_bb">
            <dia:rectangle val="21.9293,6.87929;23.05,9.12071"/>
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          <dia:attribute name="poly_points">
            <dia:point val="23,7"/>
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          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
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      <dia:object type="Standard - Text" version="1" id="O17">
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              <dia:string># child#</dia:string>
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          <dia:rectangle val="14.5,2.95;15.5,7.05"/>
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        <dia:attribute name="conn_endpoints">
          <dia:point val="15,3"/>
          <dia:point val="15,7"/>
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        <dia:attribute name="numcp">
          <dia:int val="1"/>
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        <dia:attribute name="end_arrow">
          <dia:enum val="22"/>
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        <dia:attribute name="end_arrow_length">
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        </dia:attribute>
      </dia:object>
    </dia:group>
  </dia:layer>
</dia:diagram>

Added art/CollRev3.dia.





















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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(Child)#</dia:string>
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          <dia:point val="2,15"/>
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        <dia:attribute name="numcp">
          <dia:int val="1"/>
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        <dia:attribute name="end_arrow">
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        <dia:attribute name="end_arrow_length">
          <dia:real val="0.5"/>
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        <dia:attribute name="obj_bb">
          <dia:rectangle val="8.70852,8.54107;16.0682,13.0682"/>
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        <dia:attribute name="conn_endpoints">
          <dia:point val="16,13"/>
          <dia:point val="9,9"/>
        </dia:attribute>
        <dia:attribute name="numcp">
          <dia:int val="1"/>
        </dia:attribute>
        <dia:attribute name="end_arrow">
          <dia:enum val="22"/>
        </dia:attribute>
        <dia:attribute name="end_arrow_length">
          <dia:real val="0.5"/>
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        <dia:attribute name="end_arrow_width">
          <dia:real val="0.5"/>
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      </dia:object>
      <dia:object type="Standard - Line" version="0" id="O13">
        <dia:attribute name="obj_pos">
          <dia:point val="6,10"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="5.93178,9.93178;13.2915,14.4589"/>
        </dia:attribute>
        <dia:attribute name="conn_endpoints">
          <dia:point val="6,10"/>
          <dia:point val="13,14"/>
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        <dia:attribute name="numcp">
          <dia:int val="1"/>
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        <dia:attribute name="obj_bb">
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        <dia:attribute name="text">
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            <dia:attribute name="color">
              <dia:color val="#000000"/>
            </dia:attribute>
            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
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      <dia:object type="Standard - Text" version="1" id="O15">
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        <dia:attribute name="obj_bb">
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        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#
child#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
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            <dia:attribute name="pos">
              <dia:point val="6,3"/>
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            <dia:attribute name="color">
              <dia:color val="#000000"/>
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            <dia:attribute name="alignment">
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        <dia:attribute name="valign">
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      </dia:object>
      <dia:object type="Standard - Text" version="1" id="O16">
        <dia:attribute name="obj_pos">
          <dia:point val="4,10"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="4,9.4575;5.385,11.1975"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#
child#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="4,10"/>
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            <dia:attribute name="color">
              <dia:color val="#000000"/>
            </dia:attribute>
            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Text" version="1" id="O17">
        <dia:attribute name="obj_pos">
          <dia:point val="15,12"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="15,11.5288;18.3897,13.3987"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#
    dbparent#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="15,12"/>
            </dia:attribute>
            <dia:attribute name="color">
              <dia:color val="#000000"/>
            </dia:attribute>
            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Text" version="1" id="O18">
        <dia:attribute name="obj_pos">
          <dia:point val="9,12"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="9,11.4575;11.865,12.3975"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#    dbchild#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="9,12"/>
            </dia:attribute>
            <dia:attribute name="color">
              <dia:color val="#000000"/>
            </dia:attribute>
            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Text" version="1" id="O19">
        <dia:attribute name="obj_pos">
          <dia:point val="8,7"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="8,6.4575;10.2797,8.1975"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#
  parent#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="0.80000000000000004"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="8,7"/>
            </dia:attribute>
            <dia:attribute name="color">
              <dia:color val="#000000"/>
            </dia:attribute>
            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
    </dia:group>
  </dia:layer>
</dia:diagram>

Added art/branching.odp.

cannot compute difference between binary files

Added art/concept1.dia.

cannot compute difference between binary files

Added art/concept2.dia.

cannot compute difference between binary files

Added art/delta1.dia.











































































































































































































































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<?xml version="1.0" encoding="UTF-8"?>
<dia:diagram xmlns:dia="http://www.lysator.liu.se/~alla/dia/">
  <dia:diagramdata>
    <dia:attribute name="background">
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    <dia:attribute name="paper">
      <dia:composite type="paper">
        <dia:attribute name="name">
          <dia:string>#Letter#</dia:string>
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        <dia:attribute name="bmargin">
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        <dia:attribute name="scaling">
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        <dia:attribute name="fitto">
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    <dia:attribute name="grid">
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        <dia:composite type="color"/>
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    </dia:attribute>
    <dia:attribute name="color">
      <dia:color val="#d8e5e5"/>
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    <dia:attribute name="guides">
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        <dia:attribute name="hguides"/>
        <dia:attribute name="vguides"/>
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    </dia:attribute>
  </dia:diagramdata>
  <dia:layer name="Background" visible="true">
    <dia:group>
      <dia:group>
        <dia:object type="Standard - Box" version="0" id="O0">
          <dia:attribute name="obj_pos">
            <dia:point val="1,1"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="0.95,0.95;5.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="1,1"/>
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          <dia:attribute name="elem_width">
            <dia:real val="4"/>
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          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
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        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O1">
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          <dia:attribute name="obj_bb">
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          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Header#</dia:string>
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                <dia:font family="sans" style="0" name="Helvetica"/>
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              <dia:attribute name="height">
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              <dia:attribute name="pos">
                <dia:point val="2,2"/>
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              <dia:attribute name="color">
                <dia:color val="#000000"/>
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              <dia:attribute name="alignment">
                <dia:enum val="0"/>
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            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
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        </dia:object>
      </dia:group>
      <dia:group>
        <dia:object type="Standard - Box" version="0" id="O2">
          <dia:attribute name="obj_pos">
            <dia:point val="5,1"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="4.95,0.95;9.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="5,1"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="4"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
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        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O3">
          <dia:attribute name="obj_pos">
            <dia:point val="5.53022,2"/>
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          <dia:attribute name="obj_bb">
            <dia:rectangle val="5.53022,1.4575;8.45272,2.3975"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Segments#</dia:string>
              </dia:attribute>
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                <dia:font family="sans" style="0" name="Helvetica"/>
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              <dia:attribute name="height">
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          <dia:attribute name="valign">
            <dia:enum val="3"/>
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        </dia:object>
      </dia:group>
      <dia:group>
        <dia:object type="Standard - Box" version="0" id="O4">
          <dia:attribute name="obj_pos">
            <dia:point val="9,1"/>
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          <dia:attribute name="obj_bb">
            <dia:rectangle val="8.95,0.95;13.05,3.05"/>
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          <dia:attribute name="elem_corner">
            <dia:point val="9,1"/>
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          <dia:attribute name="elem_width">
            <dia:real val="4"/>
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          <dia:attribute name="elem_height">
            <dia:real val="2"/>
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          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
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        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O5">
          <dia:attribute name="obj_pos">
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          <dia:attribute name="obj_bb">
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          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Trailer#</dia:string>
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                <dia:font family="sans" style="0" name="Helvetica"/>
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                <dia:color val="#000000"/>
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              <dia:attribute name="alignment">
                <dia:enum val="0"/>
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            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
    </dia:group>
  </dia:layer>
</dia:diagram>

Added art/delta2.dia.

































































































































































































































































































































































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<?xml version="1.0" encoding="UTF-8"?>
<dia:diagram xmlns:dia="http://www.lysator.liu.se/~alla/dia/">
  <dia:diagramdata>
    <dia:attribute name="background">
      <dia:color val="#ffffff"/>
    </dia:attribute>
    <dia:attribute name="pagebreak">
      <dia:color val="#000099"/>
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    <dia:attribute name="paper">
      <dia:composite type="paper">
        <dia:attribute name="name">
          <dia:string>#Letter#</dia:string>
        </dia:attribute>
        <dia:attribute name="tmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="bmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="lmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="rmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="is_portrait">
          <dia:boolean val="true"/>
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        <dia:attribute name="scaling">
          <dia:real val="1"/>
        </dia:attribute>
        <dia:attribute name="fitto">
          <dia:boolean val="false"/>
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      </dia:composite>
    </dia:attribute>
    <dia:attribute name="grid">
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        <dia:attribute name="width_x">
          <dia:real val="1"/>
        </dia:attribute>
        <dia:attribute name="width_y">
          <dia:real val="1"/>
        </dia:attribute>
        <dia:attribute name="visible_x">
          <dia:int val="1"/>
        </dia:attribute>
        <dia:attribute name="visible_y">
          <dia:int val="1"/>
        </dia:attribute>
        <dia:composite type="color"/>
      </dia:composite>
    </dia:attribute>
    <dia:attribute name="color">
      <dia:color val="#d8e5e5"/>
    </dia:attribute>
    <dia:attribute name="guides">
      <dia:composite type="guides">
        <dia:attribute name="hguides"/>
        <dia:attribute name="vguides"/>
      </dia:composite>
    </dia:attribute>
  </dia:diagramdata>
  <dia:layer name="Background" visible="true">
    <dia:group>
      <dia:group>
        <dia:object type="Standard - Box" version="0" id="O0">
          <dia:attribute name="obj_pos">
            <dia:point val="4,7"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="3.95,6.95;9.05,9.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="4,7"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="5"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
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          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
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        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O1">
          <dia:attribute name="obj_pos">
            <dia:point val="4.73538,8.06397"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="4.73538,7.52147;8.24757,8.46147"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Copy Range#</dia:string>
              </dia:attribute>
              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
              </dia:attribute>
              <dia:attribute name="pos">
                <dia:point val="4.73538,8.06397"/>
              </dia:attribute>
              <dia:attribute name="color">
                <dia:color val="#000000"/>
              </dia:attribute>
              <dia:attribute name="alignment">
                <dia:enum val="0"/>
              </dia:attribute>
            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
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          </dia:attribute>
        </dia:object>
      </dia:group>
      <dia:group>
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          <dia:attribute name="obj_pos">
            <dia:point val="4,4"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="3.95,3.95;9.05,6.05"/>
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          <dia:attribute name="elem_corner">
            <dia:point val="4,4"/>
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          <dia:attribute name="elem_width">
            <dia:real val="5"/>
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          <dia:attribute name="elem_height">
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          <dia:attribute name="show_background">
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        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O3">
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          <dia:attribute name="obj_bb">
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          <dia:attribute name="text">
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              <dia:attribute name="string">
                <dia:string>#Insert Literal#</dia:string>
              </dia:attribute>
              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
              </dia:attribute>
              <dia:attribute name="pos">
                <dia:point val="4.64772,5.06397"/>
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              <dia:attribute name="color">
                <dia:color val="#000000"/>
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              <dia:attribute name="alignment">
                <dia:enum val="0"/>
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            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
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        </dia:object>
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        <dia:attribute name="orth_points">
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          <dia:point val="2.5,5"/>
          <dia:point val="4,5"/>
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        <dia:attribute name="orth_orient">
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          <dia:enum val="0"/>
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        <dia:attribute name="autorouting">
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        <dia:attribute name="end_arrow">
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        </dia:attribute>
        <dia:attribute name="end_arrow_length">
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        </dia:attribute>
        <dia:attribute name="end_arrow_width">
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        </dia:attribute>
      </dia:object>
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          <dia:point val="4,8"/>
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      <dia:group>
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            <dia:point val="1,1"/>
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          <dia:attribute name="obj_bb">
            <dia:rectangle val="0.95,0.95;2.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="1,1"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="1"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
          </dia:attribute>
        </dia:object>
        <dia:object type="Standard - Box" version="0" id="O7">
          <dia:attribute name="obj_pos">
            <dia:point val="2,1"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="1.95,0.95;3.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="2,1"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="1"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
          </dia:attribute>
        </dia:object>
        <dia:object type="Standard - Box" version="0" id="O8">
          <dia:attribute name="obj_pos">
            <dia:point val="3,1"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="2.95,0.95;4.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="3,1"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="1"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
          </dia:attribute>
        </dia:object>
        <dia:object type="Standard - Box" version="0" id="O9">
          <dia:attribute name="obj_pos">
            <dia:point val="7,1"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="6.95,0.95;8.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="7,1"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="1"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
          </dia:attribute>
        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O10">
          <dia:attribute name="obj_pos">
            <dia:point val="5,2.06397"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="5,1.52147;5.8775,2.46147"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#***#</dia:string>
              </dia:attribute>
              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
              </dia:attribute>
              <dia:attribute name="pos">
                <dia:point val="5,2.06397"/>
              </dia:attribute>
              <dia:attribute name="color">
                <dia:color val="#000000"/>
              </dia:attribute>
              <dia:attribute name="alignment">
                <dia:enum val="0"/>
              </dia:attribute>
            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
    </dia:group>
  </dia:layer>
</dia:diagram>

Added art/delta3.dia.


































































































































































































































































































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<?xml version="1.0" encoding="UTF-8"?>
<dia:diagram xmlns:dia="http://www.lysator.liu.se/~alla/dia/">
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      <dia:color val="#ffffff"/>
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      <dia:color val="#000099"/>
    </dia:attribute>
    <dia:attribute name="paper">
      <dia:composite type="paper">
        <dia:attribute name="name">
          <dia:string>#Letter#</dia:string>
        </dia:attribute>
        <dia:attribute name="tmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="bmargin">
          <dia:real val="2.5399999618530273"/>
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        <dia:attribute name="lmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="rmargin">
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        </dia:attribute>
        <dia:attribute name="is_portrait">
          <dia:boolean val="true"/>
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        <dia:attribute name="scaling">
          <dia:real val="1"/>
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        <dia:attribute name="fitto">
          <dia:boolean val="false"/>
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      </dia:composite>
    </dia:attribute>
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          <dia:real val="1"/>
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        <dia:attribute name="width_y">
          <dia:real val="1"/>
        </dia:attribute>
        <dia:attribute name="visible_x">
          <dia:int val="1"/>
        </dia:attribute>
        <dia:attribute name="visible_y">
          <dia:int val="1"/>
        </dia:attribute>
        <dia:composite type="color"/>
      </dia:composite>
    </dia:attribute>
    <dia:attribute name="color">
      <dia:color val="#d8e5e5"/>
    </dia:attribute>
    <dia:attribute name="guides">
      <dia:composite type="guides">
        <dia:attribute name="hguides"/>
        <dia:attribute name="vguides"/>
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    </dia:attribute>
  </dia:diagramdata>
  <dia:layer name="Background" visible="true">
    <dia:group>
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            <dia:point val="1,1"/>
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          <dia:attribute name="obj_bb">
            <dia:rectangle val="0.95,0.95;5.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="1,1"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="4"/>
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          <dia:attribute name="elem_height">
            <dia:real val="2"/>
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          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
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        <dia:object type="Standard - Text" version="1" id="O1">
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          <dia:attribute name="obj_bb">
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          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Length#</dia:string>
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                <dia:font family="sans" style="0" name="Helvetica"/>
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              <dia:attribute name="pos">
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              <dia:attribute name="color">
                <dia:color val="#000000"/>
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              <dia:attribute name="alignment">
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          <dia:attribute name="valign">
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      <dia:group>
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          <dia:attribute name="obj_bb">
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          <dia:attribute name="elem_corner">
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          <dia:attribute name="elem_width">
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          <dia:attribute name="elem_height">
            <dia:real val="2"/>
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          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
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        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O3">
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          <dia:attribute name="obj_bb">
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          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#"@"#</dia:string>
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              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
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              <dia:attribute name="pos">
                <dia:point val="5.43272,2.06397"/>
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              <dia:attribute name="color">
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              <dia:attribute name="alignment">
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            </dia:composite>
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          <dia:attribute name="valign">
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          <dia:attribute name="obj_bb">
            <dia:rectangle val="6.95,0.95;11.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
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          <dia:attribute name="elem_width">
            <dia:real val="4"/>
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          <dia:attribute name="elem_height">
            <dia:real val="2"/>
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          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
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        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O5">
          <dia:attribute name="obj_pos">
            <dia:point val="8.12625,2.06397"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="8.12625,1.52147;9.87375,2.46147"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Offset#</dia:string>
              </dia:attribute>
              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
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              <dia:attribute name="pos">
                <dia:point val="8.12625,2.06397"/>
              </dia:attribute>
              <dia:attribute name="color">
                <dia:color val="#000000"/>
              </dia:attribute>
              <dia:attribute name="alignment">
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            </dia:composite>
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          <dia:attribute name="valign">
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          <dia:attribute name="elem_corner">
            <dia:point val="11,1"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
          </dia:attribute>
        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O7">
          <dia:attribute name="obj_pos">
            <dia:point val="11.64,2.06397"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="11.64,1.52147;12.36,2.46147"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#","#</dia:string>
              </dia:attribute>
              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
              </dia:attribute>
              <dia:attribute name="pos">
                <dia:point val="11.64,2.06397"/>
              </dia:attribute>
              <dia:attribute name="color">
                <dia:color val="#000000"/>
              </dia:attribute>
              <dia:attribute name="alignment">
                <dia:enum val="0"/>
              </dia:attribute>
            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
    </dia:group>
  </dia:layer>
</dia:diagram>

Added art/delta4.dia.











































































































































































































































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<?xml version="1.0" encoding="UTF-8"?>
<dia:diagram xmlns:dia="http://www.lysator.liu.se/~alla/dia/">
  <dia:diagramdata>
    <dia:attribute name="background">
      <dia:color val="#ffffff"/>
    </dia:attribute>
    <dia:attribute name="pagebreak">
      <dia:color val="#000099"/>
    </dia:attribute>
    <dia:attribute name="paper">
      <dia:composite type="paper">
        <dia:attribute name="name">
          <dia:string>#Letter#</dia:string>
        </dia:attribute>
        <dia:attribute name="tmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="bmargin">
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        </dia:attribute>
        <dia:attribute name="lmargin">
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        </dia:attribute>
        <dia:attribute name="rmargin">
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        <dia:attribute name="is_portrait">
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        <dia:attribute name="scaling">
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        <dia:attribute name="fitto">
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    </dia:attribute>
    <dia:attribute name="grid">
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        <dia:attribute name="width_y">
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        <dia:composite type="color"/>
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    </dia:attribute>
    <dia:attribute name="color">
      <dia:color val="#d8e5e5"/>
    </dia:attribute>
    <dia:attribute name="guides">
      <dia:composite type="guides">
        <dia:attribute name="hguides"/>
        <dia:attribute name="vguides"/>
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    </dia:attribute>
  </dia:diagramdata>
  <dia:layer name="Background" visible="true">
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      <dia:group>
        <dia:object type="Standard - Box" version="0" id="O0">
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          <dia:attribute name="obj_bb">
            <dia:rectangle val="0.95,0.95;5.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="1,1"/>
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          <dia:attribute name="elem_width">
            <dia:real val="4"/>
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          <dia:attribute name="elem_height">
            <dia:real val="2"/>
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          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
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        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O1">
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            <dia:point val="1.98659,2.0725"/>
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          <dia:attribute name="obj_bb">
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          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Length#</dia:string>
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              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
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              <dia:attribute name="height">
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              <dia:attribute name="pos">
                <dia:point val="1.98659,2.0725"/>
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              <dia:attribute name="color">
                <dia:color val="#000000"/>
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              <dia:attribute name="alignment">
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            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
      <dia:group>
        <dia:object type="Standard - Box" version="0" id="O2">
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            <dia:point val="7,1"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="6.95,0.95;11.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="7,1"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="4"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
          </dia:attribute>
        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O3">
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            <dia:point val="8.18375,2.06397"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="8.18375,1.52147;9.81625,2.46147"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Bytes#</dia:string>
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              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
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              <dia:attribute name="pos">
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              <dia:attribute name="color">
                <dia:color val="#000000"/>
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              <dia:attribute name="alignment">
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            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
      <dia:group>
        <dia:object type="Standard - Box" version="0" id="O4">
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          <dia:attribute name="obj_bb">
            <dia:rectangle val="4.95,0.95;7.05,3.05"/>
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          <dia:attribute name="elem_corner">
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            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
          </dia:attribute>
        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O5">
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          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="5.63375,1.52147;6.36625,2.46147"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#":"#</dia:string>
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              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
              </dia:attribute>
              <dia:attribute name="pos">
                <dia:point val="5.63375,2.06397"/>
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              <dia:attribute name="color">
                <dia:color val="#000000"/>
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              <dia:attribute name="alignment">
                <dia:enum val="0"/>
              </dia:attribute>
            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
    </dia:group>
  </dia:layer>
</dia:diagram>

Added art/delta5.dia.




















































































































































































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<?xml version="1.0" encoding="UTF-8"?>
<dia:diagram xmlns:dia="http://www.lysator.liu.se/~alla/dia/">
  <dia:diagramdata>
    <dia:attribute name="background">
      <dia:color val="#ffffff"/>
    </dia:attribute>
    <dia:attribute name="pagebreak">
      <dia:color val="#000099"/>
    </dia:attribute>
    <dia:attribute name="paper">
      <dia:composite type="paper">
        <dia:attribute name="name">
          <dia:string>#Letter#</dia:string>
        </dia:attribute>
        <dia:attribute name="tmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="bmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="lmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="rmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="is_portrait">
          <dia:boolean val="true"/>
        </dia:attribute>
        <dia:attribute name="scaling">
          <dia:real val="1"/>
        </dia:attribute>
        <dia:attribute name="fitto">
          <dia:boolean val="false"/>
        </dia:attribute>
      </dia:composite>
    </dia:attribute>
    <dia:attribute name="grid">
      <dia:composite type="grid">
        <dia:attribute name="width_x">
          <dia:real val="1"/>
        </dia:attribute>
        <dia:attribute name="width_y">
          <dia:real val="1"/>
        </dia:attribute>
        <dia:attribute name="visible_x">
          <dia:int val="1"/>
        </dia:attribute>
        <dia:attribute name="visible_y">
          <dia:int val="1"/>
        </dia:attribute>
        <dia:composite type="color"/>
      </dia:composite>
    </dia:attribute>
    <dia:attribute name="color">
      <dia:color val="#d8e5e5"/>
    </dia:attribute>
    <dia:attribute name="guides">
      <dia:composite type="guides">
        <dia:attribute name="hguides"/>
        <dia:attribute name="vguides"/>
      </dia:composite>
    </dia:attribute>
  </dia:diagramdata>
  <dia:layer name="Background" visible="true">
    <dia:group>
      <dia:group>
        <dia:object type="Standard - Box" version="0" id="O0">
          <dia:attribute name="obj_pos">
            <dia:point val="5,1"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="4.95,0.95;7.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="5,1"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
          </dia:attribute>
        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O1">
          <dia:attribute name="obj_pos">
            <dia:point val="5.62522,2.06397"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="5.62522,1.52147;6.35772,2.46147"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#";"#</dia:string>
              </dia:attribute>
              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
              </dia:attribute>
              <dia:attribute name="pos">
                <dia:point val="5.62522,2.06397"/>
              </dia:attribute>
              <dia:attribute name="color">
                <dia:color val="#000000"/>
              </dia:attribute>
              <dia:attribute name="alignment">
                <dia:enum val="0"/>
              </dia:attribute>
            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
      <dia:group>
        <dia:object type="Standard - Box" version="0" id="O2">
          <dia:attribute name="obj_pos">
            <dia:point val="1,1"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="0.95,0.95;5.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="1,1"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="4"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
          </dia:attribute>
        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O3">
          <dia:attribute name="obj_pos">
            <dia:point val="1.47522,2.06397"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="1.47522,1.52147;4.50772,2.46147"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Checksum#</dia:string>
              </dia:attribute>
              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
              </dia:attribute>
              <dia:attribute name="pos">
                <dia:point val="1.47522,2.06397"/>
              </dia:attribute>
              <dia:attribute name="color">
                <dia:color val="#000000"/>
              </dia:attribute>
              <dia:attribute name="alignment">
                <dia:enum val="0"/>
              </dia:attribute>
            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
    </dia:group>
  </dia:layer>
</dia:diagram>

Added art/delta6.dia.




















































































































































































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<?xml version="1.0" encoding="UTF-8"?>
<dia:diagram xmlns:dia="http://www.lysator.liu.se/~alla/dia/">
  <dia:diagramdata>
    <dia:attribute name="background">
      <dia:color val="#ffffff"/>
    </dia:attribute>
    <dia:attribute name="pagebreak">
      <dia:color val="#000099"/>
    </dia:attribute>
    <dia:attribute name="paper">
      <dia:composite type="paper">
        <dia:attribute name="name">
          <dia:string>#Letter#</dia:string>
        </dia:attribute>
        <dia:attribute name="tmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="bmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="lmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="rmargin">
          <dia:real val="2.5399999618530273"/>
        </dia:attribute>
        <dia:attribute name="is_portrait">
          <dia:boolean val="true"/>
        </dia:attribute>
        <dia:attribute name="scaling">
          <dia:real val="1"/>
        </dia:attribute>
        <dia:attribute name="fitto">
          <dia:boolean val="false"/>
        </dia:attribute>
      </dia:composite>
    </dia:attribute>
    <dia:attribute name="grid">
      <dia:composite type="grid">
        <dia:attribute name="width_x">
          <dia:real val="1"/>
        </dia:attribute>
        <dia:attribute name="width_y">
          <dia:real val="1"/>
        </dia:attribute>
        <dia:attribute name="visible_x">
          <dia:int val="1"/>
        </dia:attribute>
        <dia:attribute name="visible_y">
          <dia:int val="1"/>
        </dia:attribute>
        <dia:composite type="color"/>
      </dia:composite>
    </dia:attribute>
    <dia:attribute name="color">
      <dia:color val="#d8e5e5"/>
    </dia:attribute>
    <dia:attribute name="guides">
      <dia:composite type="guides">
        <dia:attribute name="hguides"/>
        <dia:attribute name="vguides"/>
      </dia:composite>
    </dia:attribute>
  </dia:diagramdata>
  <dia:layer name="Background" visible="true">
    <dia:group>
      <dia:group>
        <dia:object type="Standard - Box" version="0" id="O0">
          <dia:attribute name="obj_pos">
            <dia:point val="1,1"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="0.95,0.95;5.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="1,1"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="4"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
          </dia:attribute>
        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O1">
          <dia:attribute name="obj_pos">
            <dia:point val="2.39397,2.06397"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="2.39397,1.50441;3.60603,2.49559"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#Size#</dia:string>
              </dia:attribute>
              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
              </dia:attribute>
              <dia:attribute name="pos">
                <dia:point val="2.39397,2.06397"/>
              </dia:attribute>
              <dia:attribute name="color">
                <dia:color val="#000000"/>
              </dia:attribute>
              <dia:attribute name="alignment">
                <dia:enum val="0"/>
              </dia:attribute>
            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
      <dia:group>
        <dia:object type="Standard - Box" version="0" id="O2">
          <dia:attribute name="obj_pos">
            <dia:point val="5,1"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="4.95,0.95;7.05,3.05"/>
          </dia:attribute>
          <dia:attribute name="elem_corner">
            <dia:point val="5,1"/>
          </dia:attribute>
          <dia:attribute name="elem_width">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="elem_height">
            <dia:real val="2"/>
          </dia:attribute>
          <dia:attribute name="show_background">
            <dia:boolean val="true"/>
          </dia:attribute>
        </dia:object>
        <dia:object type="Standard - Text" version="1" id="O3">
          <dia:attribute name="obj_pos">
            <dia:point val="5.44022,2.06397"/>
          </dia:attribute>
          <dia:attribute name="obj_bb">
            <dia:rectangle val="5.44022,1.50441;6.55978,2.49559"/>
          </dia:attribute>
          <dia:attribute name="text">
            <dia:composite type="text">
              <dia:attribute name="string">
                <dia:string>#"\n"#</dia:string>
              </dia:attribute>
              <dia:attribute name="font">
                <dia:font family="sans" style="0" name="Helvetica"/>
              </dia:attribute>
              <dia:attribute name="height">
                <dia:real val="0.80000000000000004"/>
              </dia:attribute>
              <dia:attribute name="pos">
                <dia:point val="5.44022,2.06397"/>
              </dia:attribute>
              <dia:attribute name="color">
                <dia:color val="#000000"/>
              </dia:attribute>
              <dia:attribute name="alignment">
                <dia:enum val="0"/>
              </dia:attribute>
            </dia:composite>
          </dia:attribute>
          <dia:attribute name="valign">
            <dia:enum val="3"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
    </dia:group>
  </dia:layer>
</dia:diagram>

Added art/encode1.tex.



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\LARGE A = (\sum_{i=0}^{NHASH-1} z_i) \bmod 2^{16}

Added art/encode10.dia.


















































































































































































































































































































































































































































































































































































































































































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            <dia:int val="1"/>
          </dia:attribute>
          <dia:attribute name="end_arrow">
            <dia:enum val="22"/>
          </dia:attribute>
          <dia:attribute name="end_arrow_length">
            <dia:real val="0.5"/>
          </dia:attribute>
          <dia:attribute name="end_arrow_width">
            <dia:real val="0.5"/>
          </dia:attribute>
        </dia:object>
      </dia:group>
      <dia:object type="Standard - Text" version="1" id="O17">
        <dia:attribute name="obj_pos">
          <dia:point val="6,2"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="6,0.9825;9.38727,2.7425"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#Target#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="1.5"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="6,2"/>
            </dia:attribute>
            <dia:attribute name="color">
              <dia:color val="#000000"/>
            </dia:attribute>
            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
      <dia:object type="Standard - Text" version="1" id="O18">
        <dia:attribute name="obj_pos">
          <dia:point val="18,2"/>
        </dia:attribute>
        <dia:attribute name="obj_bb">
          <dia:rectangle val="18,0.9825;21.3125,2.7425"/>
        </dia:attribute>
        <dia:attribute name="text">
          <dia:composite type="text">
            <dia:attribute name="string">
              <dia:string>#Origin#</dia:string>
            </dia:attribute>
            <dia:attribute name="font">
              <dia:font family="sans" style="0" name="Helvetica"/>
            </dia:attribute>
            <dia:attribute name="height">
              <dia:real val="1.5"/>
            </dia:attribute>
            <dia:attribute name="pos">
              <dia:point val="18,2"/>
            </dia:attribute>
            <dia:attribute name="color">
              <dia:color val="#000000"/>
            </dia:attribute>
            <dia:attribute name="alignment">
              <dia:enum val="0"/>
            </dia:attribute>
          </dia:composite>
        </dia:attribute>
        <dia:attribute name="valign">
          <dia:enum val="3"/>
        </dia:attribute>
      </dia:object>
    </dia:group>
  </dia:layer>
</dia:diagram>

Added art/encode2.tex.


1
+
\LARGE B = (\sum_{i=0}^{NHASH-1} (NHASH-i)z_i) \bmod 2^{16}

Added art/encode3.tex.


1
+
\LARGE V = 2^{16}B + A

Added art/encode4.tex.


1
+
\LARGE z_0

Added art/encode5.tex.


1
+
\LARGE z_{new}

Added art/encode6.tex.


1
+
\LARGE A_{new} = (A - z_0 + z_{new}) \bmod 2^{16}

Added art/encode7.tex.


1
+
\LARGE B_{new} = (B - z_0 NHASH + A_{new}) \bmod 2^{16}

Added art/encode8.tex.


1
+
\LARGE V_{new} = 2^{16}B_{new} + A_{new}

Added art/encode9.tex.


1
+
\LARGE A_{new}

Added auto.def.