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Comment:Avoid unnecessary quoting of ASCII characters 34 and 39 in the markdown formatter.
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SHA3-256:7950dc2297431d373d157a9bcadba1ddecde033f8083ac5970a17b239eca2eac
User & Date: drh 2018-09-21 13:57:13
Context
2018-09-22
00:22
Fix the indented paragraph on the homepage. check-in: 0d7ac90d user: drh tags: trunk
2018-09-21
13:57
Avoid unnecessary quoting of ASCII characters 34 and 39 in the markdown formatter. check-in: 7950dc22 user: drh tags: trunk
12:34
Back out the block-indentation CSS change from check-in [2190f86c324d0f57fa4f8]. check-in: eae0a982 user: drh tags: trunk
Changes
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Changes to src/markdown_html.c. 

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   */

/* BLOB_APPEND_BLOB -- append blob contents to another */
#define BLOB_APPEND_BLOB(dest, src) \
  blob_append((dest), blob_buffer(src), blob_size(src))


/* HTML escape */





static void html_escape(struct Blob *ob, const char *data, size_t size){
  size_t beg = 0, i = 0;
  while( i<size ){
    beg = i;
    while( i<size
     && data[i]!='<'
     && data[i]!='>'
     && data[i]!='"'
     && data[i]!='&'

    ){
      i++;
    }
    blob_append(ob, data+beg, i-beg);
    while( i<size ){
      if( data[i]=='<' ){
        BLOB_APPEND_LITERAL(ob, "&lt;");
................................................................................
        BLOB_APPEND_LITERAL(ob, "&#39;");
      }else{
        break;
      }
      i++;
    }
  }


























}


/* HTML block tags */

/* Size of the prolog: "<div class='markdown'>\n" */
#define PROLOG_SIZE 23
................................................................................
  struct Blob *link,
  enum mkd_autolink type,
  void *opaque
){
  if( !link || blob_size(link)<=0 ) return 0;
  BLOB_APPEND_LITERAL(ob, "<a href=\"");
  if( type==MKDA_IMPLICIT_EMAIL ) BLOB_APPEND_LITERAL(ob, "mailto:");
  html_escape(ob, blob_buffer(link), blob_size(link));
  BLOB_APPEND_LITERAL(ob, "\">");
  if( type==MKDA_EXPLICIT_EMAIL && blob_size(link)>7 ){
    /* remove "mailto:" from displayed text */
    html_escape(ob, blob_buffer(link)+7, blob_size(link)-7);
  }else{
    html_escape(ob, blob_buffer(link), blob_size(link));
  }
................................................................................
  struct Blob *ob,
  struct Blob *link,
  struct Blob *title,
  struct Blob *alt,
  void *opaque
){
  BLOB_APPEND_LITERAL(ob, "<img src=\"");
  html_escape(ob, blob_buffer(link), blob_size(link));
  BLOB_APPEND_LITERAL(ob, "\" alt=\"");
  html_escape(ob, blob_buffer(alt), blob_size(alt));
  if( title && blob_size(title)>0 ){
    BLOB_APPEND_LITERAL(ob, "\" title=\"");
    html_escape(ob, blob_buffer(title), blob_size(title));
  }
  BLOB_APPEND_LITERAL(ob, "\" />");
  return 1;
}

static int html_line_break(struct Blob *ob, void *opaque){
  BLOB_APPEND_LITERAL(ob, "<br />\n");
................................................................................
  char *zLink = blob_buffer(link);
  BLOB_APPEND_LITERAL(ob, "<a href=\"");
  if( zLink && zLink[0]=='/' && g.zTop ){
    /* For any hyperlink that begins with "/", make it refer to the root
    ** of the Fossil repository */
    blob_append(ob, g.zTop, -1);
  }
  html_escape(ob, blob_buffer(link), blob_size(link));
  if( title && blob_size(title)>0 ){
    BLOB_APPEND_LITERAL(ob, "\" title=\"");
    html_escape(ob, blob_buffer(title), blob_size(title));
  }
  BLOB_APPEND_LITERAL(ob, "\">");
  BLOB_APPEND_BLOB(ob, content);
  BLOB_APPEND_LITERAL(ob, "</a>");
  return 1;
}









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   */

/* BLOB_APPEND_BLOB -- append blob contents to another */
#define BLOB_APPEND_BLOB(dest, src) \
  blob_append((dest), blob_buffer(src), blob_size(src))


/* HTML escapes

**
** html_escape() converts < to &lt;, > to &gt;, and & to &amp;.
** html_quote() goes further and converts " into &quot; and ' in &#39;.
*/
static void html_quote(struct Blob *ob, const char *data, size_t size){
  size_t beg = 0, i = 0;
  while( i<size ){
    beg = i;
    while( i<size
     && data[i]!='<'
     && data[i]!='>'
     && data[i]!='"'
     && data[i]!='&'
     && data[i]!='\''
    ){
      i++;
    }
    blob_append(ob, data+beg, i-beg);
    while( i<size ){
      if( data[i]=='<' ){
        BLOB_APPEND_LITERAL(ob, "&lt;");
................................................................................
        BLOB_APPEND_LITERAL(ob, "&#39;");
      }else{
        break;
      }
      i++;
    }
  }
}
static void html_escape(struct Blob *ob, const char *data, size_t size){
  size_t beg = 0, i = 0;
  while( i<size ){
    beg = i;
    while( i<size
     && data[i]!='<'
     && data[i]!='>'
     && data[i]!='&'
    ){
      i++;
    }
    blob_append(ob, data+beg, i-beg);
    while( i<size ){
      if( data[i]=='<' ){
        BLOB_APPEND_LITERAL(ob, "&lt;");
      }else if( data[i]=='>' ){
        BLOB_APPEND_LITERAL(ob, "&gt;");
      }else if( data[i]=='&' ){
        BLOB_APPEND_LITERAL(ob, "&amp;");
      }else{
        break;
      }
      i++;
    }
  }
}


/* HTML block tags */

/* Size of the prolog: "<div class='markdown'>\n" */
#define PROLOG_SIZE 23
................................................................................
  struct Blob *link,
  enum mkd_autolink type,
  void *opaque
){
  if( !link || blob_size(link)<=0 ) return 0;
  BLOB_APPEND_LITERAL(ob, "<a href=\"");
  if( type==MKDA_IMPLICIT_EMAIL ) BLOB_APPEND_LITERAL(ob, "mailto:");
  html_quote(ob, blob_buffer(link), blob_size(link));
  BLOB_APPEND_LITERAL(ob, "\">");
  if( type==MKDA_EXPLICIT_EMAIL && blob_size(link)>7 ){
    /* remove "mailto:" from displayed text */
    html_escape(ob, blob_buffer(link)+7, blob_size(link)-7);
  }else{
    html_escape(ob, blob_buffer(link), blob_size(link));
  }
................................................................................
  struct Blob *ob,
  struct Blob *link,
  struct Blob *title,
  struct Blob *alt,
  void *opaque
){
  BLOB_APPEND_LITERAL(ob, "<img src=\"");
  html_quote(ob, blob_buffer(link), blob_size(link));
  BLOB_APPEND_LITERAL(ob, "\" alt=\"");
  html_quote(ob, blob_buffer(alt), blob_size(alt));
  if( title && blob_size(title)>0 ){
    BLOB_APPEND_LITERAL(ob, "\" title=\"");
    html_quote(ob, blob_buffer(title), blob_size(title));
  }
  BLOB_APPEND_LITERAL(ob, "\" />");
  return 1;
}

static int html_line_break(struct Blob *ob, void *opaque){
  BLOB_APPEND_LITERAL(ob, "<br />\n");
................................................................................
  char *zLink = blob_buffer(link);
  BLOB_APPEND_LITERAL(ob, "<a href=\"");
  if( zLink && zLink[0]=='/' && g.zTop ){
    /* For any hyperlink that begins with "/", make it refer to the root
    ** of the Fossil repository */
    blob_append(ob, g.zTop, -1);
  }
  html_quote(ob, blob_buffer(link), blob_size(link));
  if( title && blob_size(title)>0 ){
    BLOB_APPEND_LITERAL(ob, "\" title=\"");
    html_quote(ob, blob_buffer(title), blob_size(title));
  }
  BLOB_APPEND_LITERAL(ob, "\">");
  BLOB_APPEND_BLOB(ob, content);
  BLOB_APPEND_LITERAL(ob, "</a>");
  return 1;
}

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