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Overview
Comment: | Restore original definitions of the 'LOOK_*' flags. |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
3161968463c0c6d59d2dee4b7349f00e |
User & Date: | mistachkin 2015-12-23 21:35:43 |
Context
2016-01-06
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20:49 | Merge trunk ... (check-in: 9e1fa626 user: jan.nijtmans tags: pending-review) | |
2015-12-23
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22:35 | Merge trunk ... (check-in: 9a69d84e user: jan.nijtmans tags: pending-review) | |
21:37 | Fix some outdated comments for clarity. ... (check-in: 6e3fcebc user: mistachkin tags: trunk) | |
21:35 | Restore original definitions of the 'LOOK_*' flags. ... (check-in: 31619684 user: mistachkin tags: trunk) | |
11:10 | Improvements to handling of localtime. The 'utc' and 'localtime' query parameters now work on all web pages. Timestamps can be expressed with a timezone modifier and that works correctly. ... (check-in: ea63a2d1 user: drh tags: trunk) | |
01:37 | Enhancements to the lookslike functions. ... (check-in: 6b292eaa user: drh tags: trunk) | |
Changes
Changes to src/lookslike.c.
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35 36 37 38 39 40 41 | /* ** Output flags for the looks_like_utf8() and looks_like_utf16() routines used ** to convey status information about the blob content. */ #define LOOK_NONE ((int)0x00000000) /* Nothing special was found. */ #define LOOK_NUL ((int)0x00000001) /* One or more NUL chars were found. */ | > | > | | | | | | < < | 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | /* ** Output flags for the looks_like_utf8() and looks_like_utf16() routines used ** to convey status information about the blob content. */ #define LOOK_NONE ((int)0x00000000) /* Nothing special was found. */ #define LOOK_NUL ((int)0x00000001) /* One or more NUL chars were found. */ #define LOOK_CR ((int)0x00000002) /* One or more CR chars were found. */ #define LOOK_LONE_CR ((int)0x00000004) /* An unpaired CR char was found. */ #define LOOK_LF ((int)0x00000008) /* One or more LF chars were found. */ #define LOOK_LONE_LF ((int)0x00000010) /* An unpaired LF char was found. */ #define LOOK_CRLF ((int)0x00000020) /* One or more CR/LF pairs were found. */ #define LOOK_LONG ((int)0x00000040) /* An over length line was found. */ #define LOOK_ODD ((int)0x00000080) /* An odd number of bytes was found. */ #define LOOK_SHORT ((int)0x00000100) /* Unable to perform full check. */ #define LOOK_INVALID ((int)0x00000200) /* Invalid sequence was found. */ #define LOOK_BINARY (LOOK_NUL | LOOK_LONG | LOOK_SHORT) /* May be binary. */ #define LOOK_EOL (LOOK_LONE_CR | LOOK_LONE_LF | LOOK_CRLF) /* Line seps. */ #endif /* INTERFACE */ /* ** This function attempts to scan each logical line within the blob to ** determine the type of content it appears to contain. The return value ** is a combination of one or more of the LOOK_XXX flags (see above): |
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91 92 93 94 95 96 97 98 99 100 101 102 | int j, c, flags = LOOK_NONE; /* Assume UTF-8 text, prove otherwise */ if( n==0 ) return flags; /* Empty file -> text */ c = *z; if( c==0 ){ flags |= LOOK_NUL; /* NUL character in a file -> binary */ }else if( c=='\r' ){ if( n<=1 || z[1]!='\n' ){ flags |= LOOK_LONE_CR; /* More chars, next char is not LF */ } } j = (c!='\n'); | > | > | > | 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | int j, c, flags = LOOK_NONE; /* Assume UTF-8 text, prove otherwise */ if( n==0 ) return flags; /* Empty file -> text */ c = *z; if( c==0 ){ flags |= LOOK_NUL; /* NUL character in a file -> binary */ }else if( c=='\r' ){ flags |= LOOK_CR; if( n<=1 || z[1]!='\n' ){ flags |= LOOK_LONE_CR; /* More chars, next char is not LF */ } } j = (c!='\n'); if( !j ) flags |= (LOOK_LF | LOOK_LONE_LF); /* Found LF as first char */ while( !(flags&stopFlags) && --n>0 ){ int c2 = c; c = *++z; ++j; if( c==0 ){ flags |= LOOK_NUL; /* NUL character in a file -> binary */ }else if( c=='\n' ){ flags |= LOOK_LF; if( c2=='\r' ){ flags |= (LOOK_CR | LOOK_CRLF); /* Found LF preceded by CR */ }else{ flags |= LOOK_LONE_LF; } if( j>LENGTH_MASK ){ flags |= LOOK_LONG; /* Very long line -> binary */ } j = 0; }else if( c=='\r' ){ flags |= LOOK_CR; if( n<=1 || z[1]!='\n' ){ flags |= LOOK_LONE_CR; /* More chars, next char is not LF */ } } } if( n ){ flags |= LOOK_SHORT; /* The whole blob was not examined */ |
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237 238 239 240 241 242 243 244 245 246 247 248 | c = *z; if( bReverse ){ c = UTF16_SWAP(c); } if( c==0 ){ flags |= LOOK_NUL; /* NUL character in a file -> binary */ }else if( c=='\r' ){ if( n<(2*sizeof(WCHAR_T)) || UTF16_SWAP_IF(bReverse, z[1])!='\n' ){ flags |= LOOK_LONE_CR; /* More chars, next char is not LF */ } } j = (c!='\n'); | > | > | > | 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 | c = *z; if( bReverse ){ c = UTF16_SWAP(c); } if( c==0 ){ flags |= LOOK_NUL; /* NUL character in a file -> binary */ }else if( c=='\r' ){ flags |= LOOK_CR; if( n<(2*sizeof(WCHAR_T)) || UTF16_SWAP_IF(bReverse, z[1])!='\n' ){ flags |= LOOK_LONE_CR; /* More chars, next char is not LF */ } } j = (c!='\n'); if( !j ) flags |= (LOOK_LF | LOOK_LONE_LF); /* Found LF as first char */ while( !(flags&stopFlags) && ((n-=sizeof(WCHAR_T))>=sizeof(WCHAR_T)) ){ int c2 = c; c = *++z; if( bReverse ){ c = UTF16_SWAP(c); } ++j; if( c==0 ){ flags |= LOOK_NUL; /* NUL character in a file -> binary */ }else if( c=='\n' ){ flags |= LOOK_LF; if( c2=='\r' ){ flags |= (LOOK_CR | LOOK_CRLF); /* Found LF preceded by CR */ }else{ flags |= LOOK_LONE_LF; } if( j>UTF16_LENGTH_MASK ){ flags |= LOOK_LONG; /* Very long line -> binary */ } j = 0; }else if( c=='\r' ){ flags |= LOOK_CR; if( n<(2*sizeof(WCHAR_T)) || UTF16_SWAP_IF(bReverse, z[1])!='\n' ){ flags |= LOOK_LONE_CR; /* More chars, next char is not LF */ } } } if( n ){ flags |= LOOK_SHORT; /* The whole blob was not examined */ |
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