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MacBinary  |  1991-10-20  |  59.3 KB  |  [TEXT/MPS ]
open in: MacOS 8.1     |     Win98     |     DOS

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This file was processed as: MacBinary (archive/macBinary).

ConfidenceProgramDetectionMatch TypeSupport
66% dexvert Compact Compressed (Unix) (archive/compact) ext Supported
10% dexvert MacBinary (archive/macBinary) fallback Supported
10% dexvert Jesper Olsen Module (music/jesperOlsen) magic Supported
1% dexvert Text File (text/txt) fallback Supported
100% file MacBinary II, inited, Sun Oct 20 00:04:23 1991, modified Sun Oct 20 00:04:23 1991, creator 'MPS ', type ASCII, 60105 bytes "dfa.c" , at 0xeb49 372 bytes resource default (weak)
99% file data default
49% TrID Macintosh plain text (MacBinary) default
33% TrID TTComp archive compressed (bin-2K) default (weak)
16% TrID MacBinary 2 default (weak)
0% TrID Sybase iAnywhere database files default (weak)
100% lsar MacBinary default


id metadata
keyvalue
macFileType[TEXT]
macFileCreator[MPS ]


hex view
+--------+-------------------------+-------------------------+--------+--------+
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|000025e0| 65 66 69 6e 65 20 46 45 | 54 43 48 28 63 2c 20 65 |efine FE|TCH(c, e|
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|00002600| 5c 0d 20 20 7b 09 09 09 | 20 20 20 09 20 20 20 20 |\.  {...|   .    |
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|00002630| 20 5c 0d 20 20 20 20 20 | 20 69 66 20 28 65 6f 66 | \.     | if (eof|
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|00002660| 72 29 3b 20 20 09 20 20 | 20 20 20 20 5c 0d 20 20 |r);  .  |    \.  |
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|00002680| 20 20 20 20 5c 0d 09 72 | 65 74 75 72 6e 20 5f 45 |    \..r|eturn _E|
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|000026a0| 20 20 20 20 28 63 29 20 | 3d 20 28 75 6e 73 69 67 |    (c) |= (unsig|
|000026b0| 6e 65 64 20 63 68 61 72 | 29 20 2a 6c 65 78 70 74 |ned char|) *lexpt|
|000026c0| 72 2b 2b 3b 20 20 5c 0d | 20 20 20 20 2d 2d 6c 65 |r++;  \.|    --le|
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|00002880| 49 4e 45 20 3a 20 5f 42 | 45 47 4c 49 4e 45 3b 0d |INE : _B|EGLINE;.|
|00002890| 0d 20 20 20 20 63 61 73 | 65 20 27 24 27 3a 0d 20 |.    cas|e '$':. |
|000028a0| 20 20 20 20 20 69 66 20 | 28 73 79 6e 74 61 78 5f |     if |(syntax_|
|000028b0| 62 69 74 73 20 26 20 52 | 45 5f 43 4f 4e 54 45 58 |bits & R|E_CONTEX|
|000028c0| 54 5f 49 4e 44 45 50 5f | 4f 50 53 20 7c 7c 20 21 |T_INDEP_|OPS || !|
|000028d0| 6c 65 78 6c 65 66 74 0d | 09 20 20 7c 7c 20 28 21 |lexleft.|.  || (!|
|000028e0| 20 28 73 79 6e 74 61 78 | 5f 62 69 74 73 20 26 20 | (syntax|_bits & |
|000028f0| 52 45 5f 54 49 47 48 54 | 5f 56 42 41 52 29 0d 09 |RE_TIGHT|_VBAR)..|
|00002900| 20 20 20 20 20 20 26 26 | 20 28 28 73 79 6e 74 61 |      &&| ((synta|
|00002910| 78 5f 62 69 74 73 20 26 | 20 52 45 5f 4e 4f 5f 42 |x_bits &| RE_NO_B|
|00002920| 4b 5f 50 41 52 45 4e 53 | 0d 09 09 20 20 20 3f 20 |K_PARENS|...   ? |
|00002930| 6c 65 78 6c 65 66 74 20 | 3e 20 30 20 26 26 20 2a |lexleft |> 0 && *|
|00002940| 6c 65 78 70 74 72 20 3d | 3d 20 27 29 27 0d 09 09 |lexptr =|= ')'...|
|00002950| 20 20 20 3a 20 6c 65 78 | 6c 65 66 74 20 3e 20 31 |   : lex|left > 1|
|00002960| 20 26 26 20 2a 6c 65 78 | 70 74 72 20 3d 3d 20 27 | && *lex|ptr == '|
|00002970| 5c 5c 27 20 26 26 20 6c | 65 78 70 74 72 5b 31 5d |\\' && l|exptr[1]|
|00002980| 20 3d 3d 20 27 29 27 29 | 0d 09 09 20 20 7c 7c 20 | == ')')|...  || |
|00002990| 28 73 79 6e 74 61 78 5f | 62 69 74 73 20 26 20 52 |(syntax_|bits & R|
|000029a0| 45 5f 4e 4f 5f 42 4b 5f | 56 42 41 52 0d 09 09 20 |E_NO_BK_|VBAR... |
|000029b0| 20 20 20 20 20 3f 20 6c | 65 78 6c 65 66 74 20 3e |     ? l|exleft >|
|000029c0| 20 30 20 26 26 20 2a 6c | 65 78 70 74 72 20 3d 3d | 0 && *l|exptr ==|
|000029d0| 20 27 7c 27 0d 09 09 20 | 20 20 20 20 20 3a 20 6c | '|'... |     : l|
|000029e0| 65 78 6c 65 66 74 20 3e | 20 31 20 26 26 20 2a 6c |exleft >| 1 && *l|
|000029f0| 65 78 70 74 72 20 3d 3d | 20 27 5c 5c 27 20 26 26 |exptr ==| '\\' &&|
|00002a00| 20 6c 65 78 70 74 72 5b | 31 5d 20 3d 3d 20 27 7c | lexptr[|1] == '||
|00002a10| 27 29 29 29 29 0d 09 72 | 65 74 75 72 6e 20 73 79 |'))))..r|eturn sy|
|00002a20| 6e 74 61 78 5f 62 69 74 | 73 20 26 20 52 45 5f 54 |ntax_bit|s & RE_T|
|00002a30| 49 47 48 54 5f 56 42 41 | 52 20 3f 20 5f 41 4c 4c |IGHT_VBA|R ? _ALL|
|00002a40| 45 4e 44 4c 49 4e 45 20 | 3a 20 5f 45 4e 44 4c 49 |ENDLINE |: _ENDLI|
|00002a50| 4e 45 3b 0d 20 20 20 20 | 20 20 67 6f 74 6f 20 6e |NE;.    |  goto n|
|00002a60| 6f 72 6d 61 6c 5f 63 68 | 61 72 3b 0d 0d 20 20 20 |ormal_ch|ar;..   |
|00002a70| 20 63 61 73 65 20 27 5c | 5c 27 3a 0d 20 20 20 20 | case '\|\':.    |
|00002a80| 20 20 46 45 54 43 48 28 | 63 2c 20 22 55 6e 66 69 |  FETCH(|c, "Unfi|
|00002a90| 6e 69 73 68 65 64 20 5c | 5c 20 71 75 6f 74 65 22 |nished \|\ quote"|
|00002aa0| 29 3b 0d 20 20 20 20 20 | 20 73 77 69 74 63 68 20 |);.     | switch |
|00002ab0| 28 63 29 0d 09 7b 0d 09 | 63 61 73 65 20 27 31 27 |(c)..{..|case '1'|
|00002ac0| 3a 0d 09 63 61 73 65 20 | 27 32 27 3a 0d 09 63 61 |:..case |'2':..ca|
|00002ad0| 73 65 20 27 33 27 3a 0d | 09 63 61 73 65 20 27 34 |se '3':.|.case '4|
|00002ae0| 27 3a 0d 09 63 61 73 65 | 20 27 35 27 3a 0d 09 63 |':..case| '5':..c|
|00002af0| 61 73 65 20 27 36 27 3a | 0d 09 63 61 73 65 20 27 |ase '6':|..case '|
|00002b00| 37 27 3a 0d 09 63 61 73 | 65 20 27 38 27 3a 0d 09 |7':..cas|e '8':..|
|00002b10| 63 61 73 65 20 27 39 27 | 3a 0d 09 20 20 63 61 72 |case '9'|:..  car|
|00002b20| 65 74 5f 61 6c 6c 6f 77 | 65 64 20 3d 20 30 3b 0d |et_allow|ed = 0;.|
|00002b30| 09 20 20 63 6c 6f 73 75 | 72 65 5f 61 6c 6c 6f 77 |.  closu|re_allow|
|00002b40| 65 64 20 3d 20 31 3b 0d | 09 20 20 72 65 74 75 72 |ed = 1;.|.  retur|
|00002b50| 6e 20 5f 42 41 43 4b 52 | 45 46 3b 0d 0d 09 63 61 |n _BACKR|EF;...ca|
|00002b60| 73 65 20 27 3c 27 3a 0d | 09 20 20 63 61 72 65 74 |se '<':.|.  caret|
|00002b70| 5f 61 6c 6c 6f 77 65 64 | 20 3d 20 30 3b 0d 09 20 |_allowed| = 0;.. |
|00002b80| 20 72 65 74 75 72 6e 20 | 5f 42 45 47 57 4f 52 44 | return |_BEGWORD|
|00002b90| 3b 0d 0d 09 63 61 73 65 | 20 27 3e 27 3a 0d 09 20 |;...case| '>':.. |
|00002ba0| 20 63 61 72 65 74 5f 61 | 6c 6c 6f 77 65 64 20 3d | caret_a|llowed =|
|00002bb0| 20 30 3b 0d 09 20 20 72 | 65 74 75 72 6e 20 5f 45 | 0;..  r|eturn _E|
|00002bc0| 4e 44 57 4f 52 44 3b 0d | 0d 09 63 61 73 65 20 27 |NDWORD;.|..case '|
|00002bd0| 62 27 3a 0d 09 20 20 63 | 61 72 65 74 5f 61 6c 6c |b':..  c|aret_all|
|00002be0| 6f 77 65 64 20 3d 20 30 | 3b 0d 09 20 20 72 65 74 |owed = 0|;..  ret|
|00002bf0| 75 72 6e 20 5f 4c 49 4d | 57 4f 52 44 3b 0d 0d 09 |urn _LIM|WORD;...|
|00002c00| 63 61 73 65 20 27 42 27 | 3a 0d 09 20 20 63 61 72 |case 'B'|:..  car|
|00002c10| 65 74 5f 61 6c 6c 6f 77 | 65 64 20 3d 20 30 3b 0d |et_allow|ed = 0;.|
|00002c20| 09 20 20 72 65 74 75 72 | 6e 20 5f 4e 4f 54 4c 49 |.  retur|n _NOTLI|
|00002c30| 4d 57 4f 52 44 3b 0d 0d | 09 63 61 73 65 20 27 77 |MWORD;..|.case 'w|
|00002c40| 27 3a 0d 09 63 61 73 65 | 20 27 57 27 3a 0d 09 20 |':..case| 'W':.. |
|00002c50| 20 7a 65 72 6f 73 65 74 | 28 63 73 65 74 29 3b 0d | zeroset|(cset);.|
|00002c60| 09 20 20 66 6f 72 20 28 | 63 32 20 3d 20 30 3b 20 |.  for (|c2 = 0; |
|00002c70| 63 32 20 3c 20 5f 4e 4f | 54 43 48 41 52 3b 20 2b |c2 < _NO|TCHAR; +|
|00002c80| 2b 63 32 29 0d 09 20 20 | 20 20 69 66 20 28 49 53 |+c2)..  |  if (IS|
|00002c90| 41 4c 4e 55 4d 28 63 32 | 29 29 0d 09 20 20 20 20 |ALNUM(c2|))..    |
|00002ca0| 20 20 73 65 74 62 69 74 | 28 63 32 2c 20 63 73 65 |  setbit|(c2, cse|
|00002cb0| 74 29 3b 0d 09 20 20 69 | 66 20 28 63 20 3d 3d 20 |t);..  i|f (c == |
|00002cc0| 27 57 27 29 0d 09 20 20 | 20 20 6e 6f 74 73 65 74 |'W')..  |  notset|
|00002cd0| 28 63 73 65 74 29 3b 0d | 09 20 20 63 61 72 65 74 |(cset);.|.  caret|
|00002ce0| 5f 61 6c 6c 6f 77 65 64 | 20 3d 20 30 3b 0d 09 20 |_allowed| = 0;.. |
|00002cf0| 20 63 6c 6f 73 75 72 65 | 5f 61 6c 6c 6f 77 65 64 | closure|_allowed|
|00002d00| 20 3d 20 31 3b 0d 09 20 | 20 72 65 74 75 72 6e 20 | = 1;.. | return |
|00002d10| 5f 53 45 54 20 2b 20 63 | 68 61 72 73 65 74 5f 69 |_SET + c|harset_i|
|00002d20| 6e 64 65 78 28 63 73 65 | 74 29 3b 0d 0d 09 63 61 |ndex(cse|t);...ca|
|00002d30| 73 65 20 27 3f 27 3a 0d | 09 20 20 69 66 20 28 73 |se '?':.|.  if (s|
|00002d40| 79 6e 74 61 78 5f 62 69 | 74 73 20 26 20 52 45 5f |yntax_bi|ts & RE_|
|00002d50| 42 4b 5f 50 4c 55 53 5f | 51 4d 29 0d 09 20 20 20 |BK_PLUS_|QM)..   |
|00002d60| 20 67 6f 74 6f 20 71 6d | 61 72 6b 3b 0d 09 20 20 | goto qm|ark;..  |
|00002d70| 67 6f 74 6f 20 6e 6f 72 | 6d 61 6c 5f 63 68 61 72 |goto nor|mal_char|
|00002d80| 3b 0d 0d 09 63 61 73 65 | 20 27 2b 27 3a 0d 09 20 |;...case| '+':.. |
|00002d90| 20 69 66 20 28 73 79 6e | 74 61 78 5f 62 69 74 73 | if (syn|tax_bits|
|00002da0| 20 26 20 52 45 5f 42 4b | 5f 50 4c 55 53 5f 51 4d | & RE_BK|_PLUS_QM|
|00002db0| 29 0d 09 20 20 20 20 67 | 6f 74 6f 20 70 6c 75 73 |)..    g|oto plus|
|00002dc0| 3b 0d 09 20 20 67 6f 74 | 6f 20 6e 6f 72 6d 61 6c |;..  got|o normal|
|00002dd0| 5f 63 68 61 72 3b 0d 0d | 09 63 61 73 65 20 27 7c |_char;..|.case '||
|00002de0| 27 3a 0d 09 20 20 69 66 | 20 28 21 20 28 73 79 6e |':..  if| (! (syn|
|00002df0| 74 61 78 5f 62 69 74 73 | 20 26 20 52 45 5f 4e 4f |tax_bits| & RE_NO|
|00002e00| 5f 42 4b 5f 56 42 41 52 | 29 29 0d 09 20 20 20 20 |_BK_VBAR|))..    |
|00002e10| 67 6f 74 6f 20 6f 72 3b | 0d 09 20 20 67 6f 74 6f |goto or;|..  goto|
|00002e20| 20 6e 6f 72 6d 61 6c 5f | 63 68 61 72 3b 0d 0d 09 | normal_|char;...|
|00002e30| 63 61 73 65 20 27 28 27 | 3a 0d 09 20 20 69 66 20 |case '('|:..  if |
|00002e40| 28 21 20 28 73 79 6e 74 | 61 78 5f 62 69 74 73 20 |(! (synt|ax_bits |
|00002e50| 26 20 52 45 5f 4e 4f 5f | 42 4b 5f 50 41 52 45 4e |& RE_NO_|BK_PAREN|
|00002e60| 53 29 29 0d 09 20 20 20 | 20 67 6f 74 6f 20 6c 70 |S))..   | goto lp|
|00002e70| 61 72 65 6e 3b 0d 09 20 | 20 67 6f 74 6f 20 6e 6f |aren;.. | goto no|
|00002e80| 72 6d 61 6c 5f 63 68 61 | 72 3b 0d 0d 09 63 61 73 |rmal_cha|r;...cas|
|00002e90| 65 20 27 29 27 3a 0d 09 | 20 20 69 66 20 28 21 20 |e ')':..|  if (! |
|00002ea0| 28 73 79 6e 74 61 78 5f | 62 69 74 73 20 26 20 52 |(syntax_|bits & R|
|00002eb0| 45 5f 4e 4f 5f 42 4b 5f | 50 41 52 45 4e 53 29 29 |E_NO_BK_|PARENS))|
|00002ec0| 0d 09 20 20 20 20 67 6f | 74 6f 20 72 70 61 72 65 |..    go|to rpare|
|00002ed0| 6e 3b 0d 09 20 20 67 6f | 74 6f 20 6e 6f 72 6d 61 |n;..  go|to norma|
|00002ee0| 6c 5f 63 68 61 72 3b 0d | 0d 09 64 65 66 61 75 6c |l_char;.|..defaul|
|00002ef0| 74 3a 0d 09 20 20 67 6f | 74 6f 20 6e 6f 72 6d 61 |t:..  go|to norma|
|00002f00| 6c 5f 63 68 61 72 3b 0d | 09 7d 0d 0d 20 20 20 20 |l_char;.|.}..    |
|00002f10| 63 61 73 65 20 27 3f 27 | 3a 0d 20 20 20 20 20 20 |case '?'|:.      |
|00002f20| 69 66 20 28 73 79 6e 74 | 61 78 5f 62 69 74 73 20 |if (synt|ax_bits |
|00002f30| 26 20 52 45 5f 42 4b 5f | 50 4c 55 53 5f 51 4d 29 |& RE_BK_|PLUS_QM)|
|00002f40| 0d 09 67 6f 74 6f 20 6e | 6f 72 6d 61 6c 5f 63 68 |..goto n|ormal_ch|
|00002f50| 61 72 3b 0d 20 20 20 20 | 71 6d 61 72 6b 3a 0d 20 |ar;.    |qmark:. |
|00002f60| 20 20 20 20 20 69 66 20 | 28 21 20 28 73 79 6e 74 |     if |(! (synt|
|00002f70| 61 78 5f 62 69 74 73 20 | 26 20 52 45 5f 43 4f 4e |ax_bits |& RE_CON|
|00002f80| 54 45 58 54 5f 49 4e 44 | 45 50 5f 4f 50 53 29 20 |TEXT_IND|EP_OPS) |
|00002f90| 26 26 20 21 63 6c 6f 73 | 75 72 65 5f 61 6c 6c 6f |&& !clos|ure_allo|
|00002fa0| 77 65 64 29 0d 09 67 6f | 74 6f 20 6e 6f 72 6d 61 |wed)..go|to norma|
|00002fb0| 6c 5f 63 68 61 72 3b 0d | 20 20 20 20 20 20 72 65 |l_char;.|      re|
|00002fc0| 74 75 72 6e 20 5f 51 4d | 41 52 4b 3b 0d 0d 20 20 |turn _QM|ARK;..  |
|00002fd0| 20 20 63 61 73 65 20 27 | 2a 27 3a 0d 20 20 20 20 |  case '|*':.    |
|00002fe0| 20 20 69 66 20 28 21 20 | 28 73 79 6e 74 61 78 5f |  if (! |(syntax_|
|00002ff0| 62 69 74 73 20 26 20 52 | 45 5f 43 4f 4e 54 45 58 |bits & R|E_CONTEX|
|00003000| 54 5f 49 4e 44 45 50 5f | 4f 50 53 29 20 26 26 20 |T_INDEP_|OPS) && |
|00003010| 21 63 6c 6f 73 75 72 65 | 5f 61 6c 6c 6f 77 65 64 |!closure|_allowed|
|00003020| 29 0d 09 67 6f 74 6f 20 | 6e 6f 72 6d 61 6c 5f 63 |)..goto |normal_c|
|00003030| 68 61 72 3b 0d 20 20 20 | 20 20 20 72 65 74 75 72 |har;.   |   retur|
|00003040| 6e 20 5f 53 54 41 52 3b | 0d 0d 20 20 20 20 63 61 |n _STAR;|..    ca|
|00003050| 73 65 20 27 2b 27 3a 0d | 20 20 20 20 20 20 69 66 |se '+':.|      if|
|00003060| 20 28 73 79 6e 74 61 78 | 5f 62 69 74 73 20 26 20 | (syntax|_bits & |
|00003070| 52 45 5f 42 4b 5f 50 4c | 55 53 5f 51 4d 29 0d 09 |RE_BK_PL|US_QM)..|
|00003080| 67 6f 74 6f 20 6e 6f 72 | 6d 61 6c 5f 63 68 61 72 |goto nor|mal_char|
|00003090| 3b 0d 20 20 20 20 70 6c | 75 73 3a 0d 20 20 20 20 |;.    pl|us:.    |
|000030a0| 20 20 69 66 20 28 21 20 | 28 73 79 6e 74 61 78 5f |  if (! |(syntax_|
|000030b0| 62 69 74 73 20 26 20 52 | 45 5f 43 4f 4e 54 45 58 |bits & R|E_CONTEX|
|000030c0| 54 5f 49 4e 44 45 50 5f | 4f 50 53 29 20 26 26 20 |T_INDEP_|OPS) && |
|000030d0| 21 63 6c 6f 73 75 72 65 | 5f 61 6c 6c 6f 77 65 64 |!closure|_allowed|
|000030e0| 29 0d 09 67 6f 74 6f 20 | 6e 6f 72 6d 61 6c 5f 63 |)..goto |normal_c|
|000030f0| 68 61 72 3b 0d 20 20 20 | 20 20 20 72 65 74 75 72 |har;.   |   retur|
|00003100| 6e 20 5f 50 4c 55 53 3b | 0d 0d 20 20 20 20 63 61 |n _PLUS;|..    ca|
|00003110| 73 65 20 27 7c 27 3a 0d | 20 20 20 20 20 20 69 66 |se '|':.|      if|
|00003120| 20 28 21 20 28 73 79 6e | 74 61 78 5f 62 69 74 73 | (! (syn|tax_bits|
|00003130| 20 26 20 52 45 5f 4e 4f | 5f 42 4b 5f 56 42 41 52 | & RE_NO|_BK_VBAR|
|00003140| 29 29 0d 09 67 6f 74 6f | 20 6e 6f 72 6d 61 6c 5f |))..goto| normal_|
|00003150| 63 68 61 72 3b 0d 20 20 | 20 20 6f 72 3a 0d 20 20 |char;.  |  or:.  |
|00003160| 20 20 20 20 63 61 72 65 | 74 5f 61 6c 6c 6f 77 65 |    care|t_allowe|
|00003170| 64 20 3d 20 31 3b 0d 20 | 20 20 20 20 20 63 6c 6f |d = 1;. |     clo|
|00003180| 73 75 72 65 5f 61 6c 6c | 6f 77 65 64 20 3d 20 30 |sure_all|owed = 0|
|00003190| 3b 0d 20 20 20 20 20 20 | 72 65 74 75 72 6e 20 5f |;.      |return _|
|000031a0| 4f 52 3b 0d 0d 20 20 20 | 20 63 61 73 65 20 27 5c |OR;..   | case '\|
|000031b0| 72 27 3a 20 20 20 2f 2a | 20 6e 65 77 6c 69 6e 65 |r':   /*| newline|
|000031c0| 20 63 68 61 6e 67 65 64 | 20 2a 2f 0d 20 20 20 20 | changed| */.    |
|000031d0| 20 20 69 66 20 28 21 20 | 28 73 79 6e 74 61 78 5f |  if (! |(syntax_|
|000031e0| 62 69 74 73 20 26 20 52 | 45 5f 4e 45 57 4c 49 4e |bits & R|E_NEWLIN|
|000031f0| 45 5f 4f 52 29 29 0d 09 | 67 6f 74 6f 20 6e 6f 72 |E_OR))..|goto nor|
|00003200| 6d 61 6c 5f 63 68 61 72 | 3b 0d 20 20 20 20 20 20 |mal_char|;.      |
|00003210| 67 6f 74 6f 20 6f 72 3b | 0d 0d 20 20 20 20 63 61 |goto or;|..    ca|
|00003220| 73 65 20 27 28 27 3a 0d | 20 20 20 20 20 20 69 66 |se '(':.|      if|
|00003230| 20 28 21 20 28 73 79 6e | 74 61 78 5f 62 69 74 73 | (! (syn|tax_bits|
|00003240| 20 26 20 52 45 5f 4e 4f | 5f 42 4b 5f 50 41 52 45 | & RE_NO|_BK_PARE|
|00003250| 4e 53 29 29 0d 09 67 6f | 74 6f 20 6e 6f 72 6d 61 |NS))..go|to norma|
|00003260| 6c 5f 63 68 61 72 3b 0d | 20 20 20 20 6c 70 61 72 |l_char;.|    lpar|
|00003270| 65 6e 3a 0d 20 20 20 20 | 20 20 63 61 72 65 74 5f |en:.    |  caret_|
|00003280| 61 6c 6c 6f 77 65 64 20 | 3d 20 31 3b 0d 20 20 20 |allowed |= 1;.   |
|00003290| 20 20 20 63 6c 6f 73 75 | 72 65 5f 61 6c 6c 6f 77 |   closu|re_allow|
|000032a0| 65 64 20 3d 20 30 3b 0d | 20 20 20 20 20 20 72 65 |ed = 0;.|      re|
|000032b0| 74 75 72 6e 20 5f 4c 50 | 41 52 45 4e 3b 0d 0d 20 |turn _LP|AREN;.. |
|000032c0| 20 20 20 63 61 73 65 20 | 27 29 27 3a 0d 20 20 20 |   case |')':.   |
|000032d0| 20 20 20 69 66 20 28 21 | 20 28 73 79 6e 74 61 78 |   if (!| (syntax|
|000032e0| 5f 62 69 74 73 20 26 20 | 52 45 5f 4e 4f 5f 42 4b |_bits & |RE_NO_BK|
|000032f0| 5f 50 41 52 45 4e 53 29 | 29 0d 09 67 6f 74 6f 20 |_PARENS)|)..goto |
|00003300| 6e 6f 72 6d 61 6c 5f 63 | 68 61 72 3b 0d 20 20 20 |normal_c|har;.   |
|00003310| 20 72 70 61 72 65 6e 3a | 0d 20 20 20 20 20 20 63 | rparen:|.      c|
|00003320| 61 72 65 74 5f 61 6c 6c | 6f 77 65 64 20 3d 20 30 |aret_all|owed = 0|
|00003330| 3b 0d 20 20 20 20 20 20 | 63 6c 6f 73 75 72 65 5f |;.      |closure_|
|00003340| 61 6c 6c 6f 77 65 64 20 | 3d 20 31 3b 0d 20 20 20 |allowed |= 1;.   |
|00003350| 20 20 20 72 65 74 75 72 | 6e 20 5f 52 50 41 52 45 |   retur|n _RPARE|
|00003360| 4e 3b 0d 0d 20 20 20 20 | 63 61 73 65 20 27 2e 27 |N;..    |case '.'|
|00003370| 3a 0d 20 20 20 20 20 20 | 7a 65 72 6f 73 65 74 28 |:.      |zeroset(|
|00003380| 63 73 65 74 29 3b 0d 20 | 20 20 20 20 20 6e 6f 74 |cset);. |     not|
|00003390| 73 65 74 28 63 73 65 74 | 29 3b 0d 20 20 20 20 20 |set(cset|);.     |
|000033a0| 20 63 6c 72 62 69 74 28 | 27 5c 72 27 2c 20 63 73 | clrbit(|'\r', cs|
|000033b0| 65 74 29 3b 20 2f 2a 20 | 6e 65 77 6c 69 6e 65 20 |et); /* |newline |
|000033c0| 63 68 61 6e 67 65 64 20 | 2a 2f 0d 20 20 20 20 20 |changed |*/.     |
|000033d0| 20 63 61 72 65 74 5f 61 | 6c 6c 6f 77 65 64 20 3d | caret_a|llowed =|
|000033e0| 20 30 3b 0d 20 20 20 20 | 20 20 63 6c 6f 73 75 72 | 0;.    |  closur|
|000033f0| 65 5f 61 6c 6c 6f 77 65 | 64 20 3d 20 31 3b 0d 20 |e_allowe|d = 1;. |
|00003400| 20 20 20 20 20 72 65 74 | 75 72 6e 20 5f 53 45 54 |     ret|urn _SET|
|00003410| 20 2b 20 63 68 61 72 73 | 65 74 5f 69 6e 64 65 78 | + chars|et_index|
|00003420| 28 63 73 65 74 29 3b 0d | 0d 20 20 20 20 63 61 73 |(cset);.|.    cas|
|00003430| 65 20 27 5b 27 3a 0d 20 | 20 20 20 20 20 7a 65 72 |e '[':. |     zer|
|00003440| 6f 73 65 74 28 63 73 65 | 74 29 3b 0d 20 20 20 20 |oset(cse|t);.    |
|00003450| 20 20 46 45 54 43 48 28 | 63 2c 20 22 55 6e 62 61 |  FETCH(|c, "Unba|
|00003460| 6c 61 6e 63 65 64 20 5b | 22 29 3b 0d 20 20 20 20 |lanced [|");.    |
|00003470| 20 20 69 66 20 28 63 20 | 3d 3d 20 27 5e 27 29 0d |  if (c |== '^').|
|00003480| 09 7b 0d 09 20 20 46 45 | 54 43 48 28 63 2c 20 22 |.{..  FE|TCH(c, "|
|00003490| 55 6e 62 61 6c 61 6e 63 | 65 64 20 5b 22 29 3b 0d |Unbalanc|ed [");.|
|000034a0| 09 20 20 69 6e 76 65 72 | 74 20 3d 20 31 3b 0d 09 |.  inver|t = 1;..|
|000034b0| 7d 0d 20 20 20 20 20 20 | 65 6c 73 65 0d 09 69 6e |}.      |else..in|
|000034c0| 76 65 72 74 20 3d 20 30 | 3b 0d 20 20 20 20 20 20 |vert = 0|;.      |
|000034d0| 64 6f 0d 09 7b 0d 09 20 | 20 46 45 54 43 48 28 63 |do..{.. | FETCH(c|
|000034e0| 32 2c 20 22 55 6e 62 61 | 6c 61 6e 63 65 64 20 5b |2, "Unba|lanced [|
|000034f0| 22 29 3b 0d 09 20 20 69 | 66 20 28 63 32 20 3d 3d |");..  i|f (c2 ==|
|00003500| 20 27 2d 27 29 0d 09 20 | 20 20 20 7b 0d 09 20 20 | '-').. |   {..  |
|00003510| 20 20 20 20 46 45 54 43 | 48 28 63 32 2c 20 22 55 |    FETC|H(c2, "U|
|00003520| 6e 62 61 6c 61 6e 63 65 | 64 20 5b 22 29 3b 0d 09 |nbalance|d [");..|
|00003530| 20 20 20 20 20 20 77 68 | 69 6c 65 20 28 63 20 3c |      wh|ile (c <|
|00003540| 3d 20 63 32 29 0d 09 09 | 20 20 73 65 74 62 69 74 |= c2)...|  setbit|
|00003550| 28 63 2b 2b 2c 20 63 73 | 65 74 29 3b 0d 09 20 20 |(c++, cs|et);..  |
|00003560| 20 20 20 20 46 45 54 43 | 48 28 63 2c 20 22 55 6e |    FETC|H(c, "Un|
|00003570| 62 61 6c 61 6e 63 65 64 | 20 5b 22 29 3b 0d 09 20 |balanced| [");.. |
|00003580| 20 20 20 7d 0d 09 20 20 | 65 6c 73 65 0d 09 20 20 |   }..  |else..  |
|00003590| 20 20 7b 0d 09 20 20 20 | 20 20 20 73 65 74 62 69 |  {..   |   setbi|
|000035a0| 74 28 63 2c 20 63 73 65 | 74 29 3b 0d 09 20 20 20 |t(c, cse|t);..   |
|000035b0| 20 20 20 63 20 3d 20 63 | 32 3b 0d 09 20 20 20 20 |   c = c|2;..    |
|000035c0| 7d 0d 09 7d 0d 20 20 20 | 20 20 20 77 68 69 6c 65 |}..}.   |   while|
|000035d0| 20 28 63 20 21 3d 20 27 | 5d 27 29 3b 0d 20 20 20 | (c != '|]');.   |
|000035e0| 20 20 20 69 66 20 28 69 | 6e 76 65 72 74 29 0d 09 |   if (i|nvert)..|
|000035f0| 6e 6f 74 73 65 74 28 63 | 73 65 74 29 3b 0d 20 20 |notset(c|set);.  |
|00003600| 20 20 20 20 63 61 72 65 | 74 5f 61 6c 6c 6f 77 65 |    care|t_allowe|
|00003610| 64 20 3d 20 30 3b 0d 20 | 20 20 20 20 20 63 6c 6f |d = 0;. |     clo|
|00003620| 73 75 72 65 5f 61 6c 6c | 6f 77 65 64 20 3d 20 31 |sure_all|owed = 1|
|00003630| 3b 0d 20 20 20 20 20 20 | 72 65 74 75 72 6e 20 5f |;.      |return _|
|00003640| 53 45 54 20 2b 20 63 68 | 61 72 73 65 74 5f 69 6e |SET + ch|arset_in|
|00003650| 64 65 78 28 63 73 65 74 | 29 3b 0d 0d 20 20 20 20 |dex(cset|);..    |
|00003660| 64 65 66 61 75 6c 74 3a | 0d 20 20 20 20 6e 6f 72 |default:|.    nor|
|00003670| 6d 61 6c 5f 63 68 61 72 | 3a 0d 20 20 20 20 20 20 |mal_char|:.      |
|00003680| 63 61 72 65 74 5f 61 6c | 6c 6f 77 65 64 20 3d 20 |caret_al|lowed = |
|00003690| 30 3b 0d 20 20 20 20 20 | 20 63 6c 6f 73 75 72 65 |0;.     | closure|
|000036a0| 5f 61 6c 6c 6f 77 65 64 | 20 3d 20 31 3b 0d 20 20 |_allowed| = 1;.  |
|000036b0| 20 20 20 20 69 66 20 28 | 63 61 73 65 5f 66 6f 6c |    if (|case_fol|
|000036c0| 64 20 26 26 20 49 53 41 | 4c 50 48 41 28 63 29 29 |d && ISA|LPHA(c))|
|000036d0| 0d 09 7b 0d 09 20 20 7a | 65 72 6f 73 65 74 28 63 |..{..  z|eroset(c|
|000036e0| 73 65 74 29 3b 0d 09 20 | 20 69 66 20 28 69 73 75 |set);.. | if (isu|
|000036f0| 70 70 65 72 28 63 29 29 | 0d 09 20 20 20 20 63 20 |pper(c))|..    c |
|00003700| 3d 20 74 6f 6c 6f 77 65 | 72 28 63 29 3b 0d 09 20 |= tolowe|r(c);.. |
|00003710| 20 73 65 74 62 69 74 28 | 63 2c 20 63 73 65 74 29 | setbit(|c, cset)|
|00003720| 3b 0d 09 20 20 73 65 74 | 62 69 74 28 74 6f 75 70 |;..  set|bit(toup|
|00003730| 70 65 72 28 63 29 2c 20 | 63 73 65 74 29 3b 0d 09 |per(c), |cset);..|
|00003740| 20 20 72 65 74 75 72 6e | 20 5f 53 45 54 20 2b 20 |  return| _SET + |
|00003750| 63 68 61 72 73 65 74 5f | 69 6e 64 65 78 28 63 73 |charset_|index(cs|
|00003760| 65 74 29 3b 0d 09 7d 0d | 20 20 20 20 20 20 72 65 |et);..}.|      re|
|00003770| 74 75 72 6e 20 63 3b 0d | 20 20 20 20 7d 0d 7d 0d |turn c;.|    }.}.|
|00003780| 0c 0d 2f 2a 20 52 65 63 | 75 72 73 69 76 65 20 64 |../* Rec|ursive d|
|00003790| 65 73 63 65 6e 74 20 70 | 61 72 73 65 72 20 66 6f |escent p|arser fo|
|000037a0| 72 20 72 65 67 75 6c 61 | 72 20 65 78 70 72 65 73 |r regula|r expres|
|000037b0| 73 69 6f 6e 73 2e 20 2a | 2f 0d 0d 73 74 61 74 69 |sions. *|/..stati|
|000037c0| 63 20 5f 74 6f 6b 65 6e | 20 74 6f 6b 3b 09 09 2f |c _token| tok;../|
|000037d0| 2a 20 4c 6f 6f 6b 61 68 | 65 61 64 20 74 6f 6b 65 |* Lookah|ead toke|
|000037e0| 6e 2e 20 2a 2f 0d 73 74 | 61 74 69 63 20 64 65 70 |n. */.st|atic dep|
|000037f0| 74 68 3b 09 09 09 2f 2a | 20 43 75 72 72 65 6e 74 |th;.../*| Current|
|00003800| 20 64 65 70 74 68 20 6f | 66 20 61 20 68 79 70 6f | depth o|f a hypo|
|00003810| 74 68 65 74 69 63 61 6c | 20 73 74 61 63 6b 0d 09 |thetical| stack..|
|00003820| 09 09 09 20 20 20 68 6f | 6c 64 69 6e 67 20 64 65 |...   ho|lding de|
|00003830| 66 65 72 72 65 64 20 70 | 72 6f 64 75 63 74 69 6f |ferred p|roductio|
|00003840| 6e 73 2e 20 20 54 68 69 | 73 20 69 73 0d 09 09 09 |ns.  Thi|s is....|
|00003850| 09 20 20 20 75 73 65 64 | 20 74 6f 20 64 65 74 65 |.   used| to dete|
|00003860| 72 6d 69 6e 65 20 74 68 | 65 20 64 65 70 74 68 20 |rmine th|e depth |
|00003870| 74 68 61 74 20 77 69 6c | 6c 20 62 65 0d 09 09 09 |that wil|l be....|
|00003880| 09 20 20 20 72 65 71 75 | 69 72 65 64 20 6f 66 20 |.   requ|ired of |
|00003890| 74 68 65 20 72 65 61 6c | 20 73 74 61 63 6b 20 6c |the real| stack l|
|000038a0| 61 74 65 72 20 6f 6e 20 | 69 6e 0d 09 09 09 09 20 |ater on |in..... |
|000038b0| 20 20 72 65 67 61 6e 61 | 6c 79 7a 65 28 29 2e 20 |  regana|lyze(). |
|000038c0| 2a 2f 0d 0d 2f 2a 20 41 | 64 64 20 74 68 65 20 67 |*/../* A|dd the g|
|000038d0| 69 76 65 6e 20 74 6f 6b | 65 6e 20 74 6f 20 74 68 |iven tok|en to th|
|000038e0| 65 20 70 61 72 73 65 20 | 74 72 65 65 2c 20 6d 61 |e parse |tree, ma|
|000038f0| 69 6e 74 61 69 6e 69 6e | 67 20 74 68 65 20 64 65 |intainin|g the de|
|00003900| 70 74 68 20 63 6f 75 6e | 74 20 61 6e 64 0d 20 20 |pth coun|t and.  |
|00003910| 20 75 70 64 61 74 69 6e | 67 20 74 68 65 20 6d 61 | updatin|g the ma|
|00003920| 78 69 6d 75 6d 20 64 65 | 70 74 68 20 69 66 20 6e |ximum de|pth if n|
|00003930| 65 63 65 73 73 61 72 79 | 2e 20 2a 2f 0d 73 74 61 |ecessary|. */.sta|
|00003940| 74 69 63 20 76 6f 69 64 | 0d 61 64 64 74 6f 6b 28 |tic void|.addtok(|
|00003950| 74 29 0d 20 20 20 20 20 | 5f 74 6f 6b 65 6e 20 74 |t).     |_token t|
|00003960| 3b 0d 7b 0d 20 20 52 45 | 41 4c 4c 4f 43 5f 49 46 |;.{.  RE|ALLOC_IF|
|00003970| 5f 4e 45 43 45 53 53 41 | 52 59 28 72 65 67 2d 3e |_NECESSA|RY(reg->|
|00003980| 74 6f 6b 65 6e 73 2c 20 | 5f 74 6f 6b 65 6e 2c 20 |tokens, |_token, |
|00003990| 72 65 67 2d 3e 74 61 6c | 6c 6f 63 2c 20 72 65 67 |reg->tal|loc, reg|
|000039a0| 2d 3e 74 69 6e 64 65 78 | 29 3b 0d 20 20 72 65 67 |->tindex|);.  reg|
|000039b0| 2d 3e 74 6f 6b 65 6e 73 | 5b 72 65 67 2d 3e 74 69 |->tokens|[reg->ti|
|000039c0| 6e 64 65 78 2b 2b 5d 20 | 3d 20 74 3b 0d 0d 20 20 |ndex++] |= t;..  |
|000039d0| 73 77 69 74 63 68 20 28 | 74 29 0d 20 20 20 20 7b |switch (|t).    {|
|000039e0| 0d 20 20 20 20 63 61 73 | 65 20 5f 51 4d 41 52 4b |.    cas|e _QMARK|
|000039f0| 3a 0d 20 20 20 20 63 61 | 73 65 20 5f 53 54 41 52 |:.    ca|se _STAR|
|00003a00| 3a 0d 20 20 20 20 63 61 | 73 65 20 5f 50 4c 55 53 |:.    ca|se _PLUS|
|00003a10| 3a 0d 20 20 20 20 20 20 | 62 72 65 61 6b 3b 0d 0d |:.      |break;..|
|00003a20| 20 20 20 20 63 61 73 65 | 20 5f 43 41 54 3a 0d 20 |    case| _CAT:. |
|00003a30| 20 20 20 63 61 73 65 20 | 5f 4f 52 3a 0d 20 20 20 |   case |_OR:.   |
|00003a40| 20 20 20 2d 2d 64 65 70 | 74 68 3b 0d 20 20 20 20 |   --dep|th;.    |
|00003a50| 20 20 62 72 65 61 6b 3b | 0d 0d 20 20 20 20 64 65 |  break;|..    de|
|00003a60| 66 61 75 6c 74 3a 0d 20 | 20 20 20 20 20 2b 2b 72 |fault:. |     ++r|
|00003a70| 65 67 2d 3e 6e 6c 65 61 | 76 65 73 3b 0d 20 20 20 |eg->nlea|ves;.   |
|00003a80| 20 63 61 73 65 20 5f 45 | 4d 50 54 59 3a 0d 20 20 | case _E|MPTY:.  |
|00003a90| 20 20 20 20 2b 2b 64 65 | 70 74 68 3b 0d 20 20 20 |    ++de|pth;.   |
|00003aa0| 20 20 20 62 72 65 61 6b | 3b 0d 20 20 20 20 7d 0d |   break|;.    }.|
|00003ab0| 20 20 69 66 20 28 64 65 | 70 74 68 20 3e 20 72 65 |  if (de|pth > re|
|00003ac0| 67 2d 3e 64 65 70 74 68 | 29 0d 20 20 20 20 72 65 |g->depth|).    re|
|00003ad0| 67 2d 3e 64 65 70 74 68 | 20 3d 20 64 65 70 74 68 |g->depth| = depth|
|00003ae0| 3b 0d 7d 0d 0d 2f 2a 20 | 54 68 65 20 67 72 61 6d |;.}../* |The gram|
|00003af0| 6d 61 72 20 75 6e 64 65 | 72 73 74 6f 6f 64 20 62 |mar unde|rstood b|
|00003b00| 79 20 74 68 65 20 70 61 | 72 73 65 72 20 69 73 20 |y the pa|rser is |
|00003b10| 61 73 20 66 6f 6c 6c 6f | 77 73 2e 0d 0d 20 20 20 |as follo|ws...   |
|00003b20| 73 74 61 72 74 3a 0d 20 | 20 20 20 20 72 65 67 65 |start:. |    rege|
|00003b30| 78 70 0d 20 20 20 20 20 | 5f 41 4c 4c 42 45 47 4c |xp.     |_ALLBEGL|
|00003b40| 49 4e 45 20 72 65 67 65 | 78 70 0d 20 20 20 20 20 |INE rege|xp.     |
|00003b50| 72 65 67 65 78 70 20 5f | 41 4c 4c 45 4e 44 4c 49 |regexp _|ALLENDLI|
|00003b60| 4e 45 0d 20 20 20 20 20 | 5f 41 4c 4c 42 45 47 4c |NE.     |_ALLBEGL|
|00003b70| 49 4e 45 20 72 65 67 65 | 78 70 20 5f 41 4c 4c 45 |INE rege|xp _ALLE|
|00003b80| 4e 44 4c 49 4e 45 0d 0d | 20 20 20 72 65 67 65 78 |NDLINE..|   regex|
|00003b90| 70 3a 0d 20 20 20 20 20 | 72 65 67 65 78 70 20 5f |p:.     |regexp _|
|00003ba0| 4f 52 20 62 72 61 6e 63 | 68 0d 20 20 20 20 20 62 |OR branc|h.     b|
|00003bb0| 72 61 6e 63 68 0d 0d 20 | 20 20 62 72 61 6e 63 68 |ranch.. |  branch|
|00003bc0| 3a 0d 20 20 20 20 20 62 | 72 61 6e 63 68 20 63 6c |:.     b|ranch cl|
|00003bd0| 6f 73 75 72 65 0d 20 20 | 20 20 20 63 6c 6f 73 75 |osure.  |   closu|
|00003be0| 72 65 0d 0d 20 20 20 63 | 6c 6f 73 75 72 65 3a 0d |re..   c|losure:.|
|00003bf0| 20 20 20 20 20 63 6c 6f | 73 75 72 65 20 5f 51 4d |     clo|sure _QM|
|00003c00| 41 52 4b 0d 20 20 20 20 | 20 63 6c 6f 73 75 72 65 |ARK.    | closure|
|00003c10| 20 5f 53 54 41 52 0d 20 | 20 20 20 20 63 6c 6f 73 | _STAR. |    clos|
|00003c20| 75 72 65 20 5f 50 4c 55 | 53 0d 20 20 20 20 20 61 |ure _PLU|S.     a|
|00003c30| 74 6f 6d 0d 0d 20 20 20 | 61 74 6f 6d 3a 0d 20 20 |tom..   |atom:.  |
|00003c40| 20 20 20 3c 6e 6f 72 6d | 61 6c 20 63 68 61 72 61 |   <norm|al chara|
|00003c50| 63 74 65 72 3e 0d 20 20 | 20 20 20 5f 53 45 54 0d |cter>.  |   _SET.|
|00003c60| 20 20 20 20 20 5f 42 41 | 43 4b 52 45 46 0d 20 20 |     _BA|CKREF.  |
|00003c70| 20 20 20 5f 42 45 47 4c | 49 4e 45 0d 20 20 20 20 |   _BEGL|INE.    |
|00003c80| 20 5f 45 4e 44 4c 49 4e | 45 0d 20 20 20 20 20 5f | _ENDLIN|E.     _|
|00003c90| 42 45 47 57 4f 52 44 0d | 20 20 20 20 20 5f 45 4e |BEGWORD.|     _EN|
|00003ca0| 44 57 4f 52 44 0d 20 20 | 20 20 20 5f 4c 49 4d 57 |DWORD.  |   _LIMW|
|00003cb0| 4f 52 44 0d 20 20 20 20 | 20 5f 4e 4f 54 4c 49 4d |ORD.    | _NOTLIM|
|00003cc0| 57 4f 52 44 0d 20 20 20 | 20 20 3c 65 6d 70 74 79 |WORD.   |  <empty|
|00003cd0| 3e 0d 0d 20 20 20 54 68 | 65 20 70 61 72 73 65 72 |>..   Th|e parser|
|00003ce0| 20 62 75 69 6c 64 73 20 | 61 20 70 61 72 73 65 20 | builds |a parse |
|00003cf0| 74 72 65 65 20 69 6e 20 | 70 6f 73 74 66 69 78 20 |tree in |postfix |
|00003d00| 66 6f 72 6d 20 69 6e 20 | 61 6e 20 61 72 72 61 79 |form in |an array|
|00003d10| 20 6f 66 20 74 6f 6b 65 | 6e 73 2e 20 2a 2f 0d 0d | of toke|ns. */..|
|00003d20| 23 69 66 64 65 66 20 5f | 5f 53 54 44 43 5f 5f 0d |#ifdef _|_STDC__.|
|00003d30| 73 74 61 74 69 63 20 76 | 6f 69 64 20 72 65 67 65 |static v|oid rege|
|00003d40| 78 70 28 29 3b 0d 23 65 | 6c 73 65 0d 73 74 61 74 |xp();.#e|lse.stat|
|00003d50| 69 63 20 76 6f 69 64 20 | 72 65 67 65 78 70 28 29 |ic void |regexp()|
|00003d60| 3b 0d 23 65 6e 64 69 66 | 0d 0d 73 74 61 74 69 63 |;.#endif|..static|
|00003d70| 20 76 6f 69 64 0d 61 74 | 6f 6d 28 29 0d 7b 0d 20 | void.at|om().{. |
|00003d80| 20 69 66 20 28 74 6f 6b | 20 3e 3d 20 30 20 26 26 | if (tok| >= 0 &&|
|00003d90| 20 74 6f 6b 20 3c 20 5f | 4e 4f 54 43 48 41 52 20 | tok < _|NOTCHAR |
|00003da0| 7c 7c 20 74 6f 6b 20 3e | 3d 20 5f 53 45 54 20 7c ||| tok >|= _SET ||
|00003db0| 7c 20 74 6f 6b 20 3d 3d | 20 5f 42 41 43 4b 52 45 || tok ==| _BACKRE|
|00003dc0| 46 0d 20 20 20 20 20 20 | 7c 7c 20 74 6f 6b 20 3d |F.      ||| tok =|
|00003dd0| 3d 20 5f 42 45 47 4c 49 | 4e 45 20 7c 7c 20 74 6f |= _BEGLI|NE || to|
|00003de0| 6b 20 3d 3d 20 5f 45 4e | 44 4c 49 4e 45 20 7c 7c |k == _EN|DLINE |||
|00003df0| 20 74 6f 6b 20 3d 3d 20 | 5f 42 45 47 57 4f 52 44 | tok == |_BEGWORD|
|00003e00| 0d 20 20 20 20 20 20 7c | 7c 20 74 6f 6b 20 3d 3d |.      ||| tok ==|
|00003e10| 20 5f 45 4e 44 57 4f 52 | 44 20 7c 7c 20 74 6f 6b | _ENDWOR|D || tok|
|00003e20| 20 3d 3d 20 5f 4c 49 4d | 57 4f 52 44 20 7c 7c 20 | == _LIM|WORD || |
|00003e30| 74 6f 6b 20 3d 3d 20 5f | 4e 4f 54 4c 49 4d 57 4f |tok == _|NOTLIMWO|
|00003e40| 52 44 29 0d 20 20 20 20 | 7b 0d 20 20 20 20 20 20 |RD).    |{.      |
|00003e50| 61 64 64 74 6f 6b 28 74 | 6f 6b 29 3b 0d 20 20 20 |addtok(t|ok);.   |
|00003e60| 20 20 20 74 6f 6b 20 3d | 20 6c 65 78 28 29 3b 0d |   tok =| lex();.|
|00003e70| 20 20 20 20 7d 0d 20 20 | 65 6c 73 65 20 69 66 20 |    }.  |else if |
|00003e80| 28 74 6f 6b 20 3d 3d 20 | 5f 4c 50 41 52 45 4e 29 |(tok == |_LPAREN)|
|00003e90| 0d 20 20 20 20 7b 0d 20 | 20 20 20 20 20 74 6f 6b |.    {. |     tok|
|00003ea0| 20 3d 20 6c 65 78 28 29 | 3b 0d 20 20 20 20 20 20 | = lex()|;.      |
|00003eb0| 72 65 67 65 78 70 28 29 | 3b 0d 20 20 20 20 20 20 |regexp()|;.      |
|00003ec0| 69 66 20 28 74 6f 6b 20 | 21 3d 20 5f 52 50 41 52 |if (tok |!= _RPAR|
|00003ed0| 45 4e 29 0d 09 72 65 67 | 65 72 72 6f 72 28 22 55 |EN)..reg|error("U|
|00003ee0| 6e 62 61 6c 61 6e 63 65 | 64 20 28 22 29 3b 0d 20 |nbalance|d (");. |
|00003ef0| 20 20 20 20 20 74 6f 6b | 20 3d 20 6c 65 78 28 29 |     tok| = lex()|
|00003f00| 3b 0d 20 20 20 20 7d 0d | 20 20 65 6c 73 65 0d 20 |;.    }.|  else. |
|00003f10| 20 20 20 61 64 64 74 6f | 6b 28 5f 45 4d 50 54 59 |   addto|k(_EMPTY|
|00003f20| 29 3b 0d 7d 0d 0d 73 74 | 61 74 69 63 20 76 6f 69 |);.}..st|atic voi|
|00003f30| 64 0d 63 6c 6f 73 75 72 | 65 28 29 0d 7b 0d 20 20 |d.closur|e().{.  |
|00003f40| 61 74 6f 6d 28 29 3b 0d | 20 20 77 68 69 6c 65 20 |atom();.|  while |
|00003f50| 28 74 6f 6b 20 3d 3d 20 | 5f 51 4d 41 52 4b 20 7c |(tok == |_QMARK ||
|00003f60| 7c 20 74 6f 6b 20 3d 3d | 20 5f 53 54 41 52 20 7c || tok ==| _STAR ||
|00003f70| 7c 20 74 6f 6b 20 3d 3d | 20 5f 50 4c 55 53 29 0d || tok ==| _PLUS).|
|00003f80| 20 20 20 20 7b 0d 20 20 | 20 20 20 20 61 64 64 74 |    {.  |    addt|
|00003f90| 6f 6b 28 74 6f 6b 29 3b | 0d 20 20 20 20 20 20 74 |ok(tok);|.      t|
|00003fa0| 6f 6b 20 3d 20 6c 65 78 | 28 29 3b 0d 20 20 20 20 |ok = lex|();.    |
|00003fb0| 7d 0d 7d 0d 0d 73 74 61 | 74 69 63 20 76 6f 69 64 |}.}..sta|tic void|
|00003fc0| 0d 62 72 61 6e 63 68 28 | 29 0d 7b 0d 20 20 63 6c |.branch(|).{.  cl|
|00003fd0| 6f 73 75 72 65 28 29 3b | 0d 20 20 77 68 69 6c 65 |osure();|.  while|
|00003fe0| 20 28 74 6f 6b 20 21 3d | 20 5f 52 50 41 52 45 4e | (tok !=| _RPAREN|
|00003ff0| 20 26 26 20 74 6f 6b 20 | 21 3d 20 5f 4f 52 20 26 | && tok |!= _OR &|
|00004000| 26 20 74 6f 6b 20 21 3d | 20 5f 41 4c 4c 45 4e 44 |& tok !=| _ALLEND|
|00004010| 4c 49 4e 45 20 26 26 20 | 74 6f 6b 20 3e 3d 20 30 |LINE && |tok >= 0|
|00004020| 29 0d 20 20 20 20 7b 0d | 20 20 20 20 20 20 63 6c |).    {.|      cl|
|00004030| 6f 73 75 72 65 28 29 3b | 0d 20 20 20 20 20 20 61 |osure();|.      a|
|00004040| 64 64 74 6f 6b 28 5f 43 | 41 54 29 3b 0d 20 20 20 |ddtok(_C|AT);.   |
|00004050| 20 7d 0d 7d 0d 0d 73 74 | 61 74 69 63 20 76 6f 69 | }.}..st|atic voi|
|00004060| 64 0d 72 65 67 65 78 70 | 28 29 0d 7b 0d 20 20 62 |d.regexp|().{.  b|
|00004070| 72 61 6e 63 68 28 29 3b | 0d 20 20 77 68 69 6c 65 |ranch();|.  while|
|00004080| 20 28 74 6f 6b 20 3d 3d | 20 5f 4f 52 29 0d 20 20 | (tok ==| _OR).  |
|00004090| 20 20 7b 0d 20 20 20 20 | 20 20 74 6f 6b 20 3d 20 |  {.    |  tok = |
|000040a0| 6c 65 78 28 29 3b 0d 20 | 20 20 20 20 20 62 72 61 |lex();. |     bra|
|000040b0| 6e 63 68 28 29 3b 0d 20 | 20 20 20 20 20 61 64 64 |nch();. |     add|
|000040c0| 74 6f 6b 28 5f 4f 52 29 | 3b 0d 20 20 20 20 7d 0d |tok(_OR)|;.    }.|
|000040d0| 7d 0d 0d 2f 2a 20 4d 61 | 69 6e 20 65 6e 74 72 79 |}../* Ma|in entry|
|000040e0| 20 70 6f 69 6e 74 20 66 | 6f 72 20 74 68 65 20 70 | point f|or the p|
|000040f0| 61 72 73 65 72 2e 20 20 | 53 20 69 73 20 61 20 73 |arser.  |S is a s|
|00004100| 74 72 69 6e 67 20 74 6f | 20 62 65 20 70 61 72 73 |tring to| be pars|
|00004110| 65 64 2c 20 6c 65 6e 20 | 69 73 20 74 68 65 0d 20 |ed, len |is the. |
|00004120| 20 20 6c 65 6e 67 74 68 | 20 6f 66 20 74 68 65 20 |  length| of the |
|00004130| 73 74 72 69 6e 67 2c 20 | 73 6f 20 73 20 63 61 6e |string, |so s can|
|00004140| 20 69 6e 63 6c 75 64 65 | 20 4e 55 4c 20 63 68 61 | include| NUL cha|
|00004150| 72 61 63 74 65 72 73 2e | 20 20 52 20 69 73 20 61 |racters.|  R is a|
|00004160| 20 70 6f 69 6e 74 65 72 | 20 74 6f 0d 20 20 20 74 | pointer| to.   t|
|00004170| 68 65 20 73 74 72 75 63 | 74 20 72 65 67 65 78 70 |he struc|t regexp|
|00004180| 20 74 6f 20 70 61 72 73 | 65 20 69 6e 74 6f 2e 20 | to pars|e into. |
|00004190| 2a 2f 0d 76 6f 69 64 0d | 72 65 67 70 61 72 73 65 |*/.void.|regparse|
|000041a0| 28 73 2c 20 6c 65 6e 2c | 20 72 29 0d 20 20 20 20 |(s, len,| r).    |
|000041b0| 20 63 6f 6e 73 74 20 63 | 68 61 72 20 2a 73 3b 0d | const c|har *s;.|
|000041c0| 20 20 20 20 20 73 69 7a | 65 5f 74 20 6c 65 6e 3b |     siz|e_t len;|
|000041d0| 0d 20 20 20 20 20 73 74 | 72 75 63 74 20 72 65 67 |.     st|ruct reg|
|000041e0| 65 78 70 20 2a 72 3b 0d | 7b 0d 20 20 72 65 67 20 |exp *r;.|{.  reg |
|000041f0| 3d 20 72 3b 0d 20 20 6c | 65 78 73 74 61 72 74 20 |= r;.  l|exstart |
|00004200| 3d 20 6c 65 78 70 74 72 | 20 3d 20 73 3b 0d 20 20 |= lexptr| = s;.  |
|00004210| 6c 65 78 6c 65 66 74 20 | 3d 20 6c 65 6e 3b 0d 20 |lexleft |= len;. |
|00004220| 20 63 61 72 65 74 5f 61 | 6c 6c 6f 77 65 64 20 3d | caret_a|llowed =|
|00004230| 20 31 3b 0d 20 20 63 6c | 6f 73 75 72 65 5f 61 6c | 1;.  cl|osure_al|
|00004240| 6c 6f 77 65 64 20 3d 20 | 30 3b 0d 0d 20 20 69 66 |lowed = |0;..  if|
|00004250| 20 28 21 20 73 79 6e 74 | 61 78 5f 62 69 74 73 5f | (! synt|ax_bits_|
|00004260| 73 65 74 29 0d 20 20 20 | 20 72 65 67 65 72 72 6f |set).   | regerro|
|00004270| 72 28 22 4e 6f 20 73 79 | 6e 74 61 78 20 73 70 65 |r("No sy|ntax spe|
|00004280| 63 69 66 69 65 64 22 29 | 3b 0d 0d 20 20 74 6f 6b |cified")|;..  tok|
|00004290| 20 3d 20 6c 65 78 28 29 | 3b 0d 20 20 64 65 70 74 | = lex()|;.  dept|
|000042a0| 68 20 3d 20 72 2d 3e 64 | 65 70 74 68 3b 0d 0d 20 |h = r->d|epth;.. |
|000042b0| 20 69 66 20 28 74 6f 6b | 20 3d 3d 20 5f 41 4c 4c | if (tok| == _ALL|
|000042c0| 42 45 47 4c 49 4e 45 29 | 0d 20 20 20 20 7b 0d 20 |BEGLINE)|.    {. |
|000042d0| 20 20 20 20 20 61 64 64 | 74 6f 6b 28 5f 42 45 47 |     add|tok(_BEG|
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|00004f80| 69 5d 2e 6e 65 77 6c 69 | 6e 65 20 7c 7c 20 6c 65 |i].newli|ne || le|
|00004f90| 74 74 65 72 20 21 3d 20 | 72 2d 3e 73 74 61 74 65 |tter != |r->state|
|00004fa0| 73 5b 69 5d 2e 6c 65 74 | 74 65 72 29 0d 09 63 6f |s[i].let|ter)..co|
|00004fb0| 6e 74 69 6e 75 65 3b 0d | 20 20 20 20 20 20 66 6f |ntinue;.|      fo|
|00004fc0| 72 20 28 6a 20 3d 20 30 | 3b 20 6a 20 3c 20 73 2d |r (j = 0|; j < s-|
|00004fd0| 3e 6e 65 6c 65 6d 3b 20 | 2b 2b 6a 29 0d 09 69 66 |>nelem; |++j)..if|
|00004fe0| 20 28 73 2d 3e 65 6c 65 | 6d 73 5b 6a 5d 2e 63 6f | (s->ele|ms[j].co|
|00004ff0| 6e 73 74 72 61 69 6e 74 | 0d 09 20 20 20 20 21 3d |nstraint|..    !=|
|00005000| 20 72 2d 3e 73 74 61 74 | 65 73 5b 69 5d 2e 65 6c | r->stat|es[i].el|
|00005010| 65 6d 73 2e 65 6c 65 6d | 73 5b 6a 5d 2e 63 6f 6e |ems.elem|s[j].con|
|00005020| 73 74 72 61 69 6e 74 0d | 09 20 20 20 20 7c 7c 20 |straint.|.    || |
|00005030| 73 2d 3e 65 6c 65 6d 73 | 5b 6a 5d 2e 69 6e 64 65 |s->elems|[j].inde|
|00005040| 78 20 21 3d 20 72 2d 3e | 73 74 61 74 65 73 5b 69 |x != r->|states[i|
|00005050| 5d 2e 65 6c 65 6d 73 2e | 65 6c 65 6d 73 5b 6a 5d |].elems.|elems[j]|
|00005060| 2e 69 6e 64 65 78 29 0d | 09 20 20 62 72 65 61 6b |.index).|.  break|
|00005070| 3b 0d 20 20 20 20 20 20 | 69 66 20 28 6a 20 3d 3d |;.      |if (j ==|
|00005080| 20 73 2d 3e 6e 65 6c 65 | 6d 29 0d 09 72 65 74 75 | s->nele|m)..retu|
|00005090| 72 6e 20 69 3b 0d 20 20 | 20 20 7d 0d 0d 20 20 2f |rn i;.  |  }..  /|
|000050a0| 2a 20 57 65 27 6c 6c 20 | 68 61 76 65 20 74 6f 20 |* We'll |have to |
|000050b0| 63 72 65 61 74 65 20 61 | 20 6e 65 77 20 73 74 61 |create a| new sta|
|000050c0| 74 65 2e 20 2a 2f 0d 20 | 20 52 45 41 4c 4c 4f 43 |te. */. | REALLOC|
|000050d0| 5f 49 46 5f 4e 45 43 45 | 53 53 41 52 59 28 72 2d |_IF_NECE|SSARY(r-|
|000050e0| 3e 73 74 61 74 65 73 2c | 20 5f 64 66 61 5f 73 74 |>states,| _dfa_st|
|000050f0| 61 74 65 2c 20 72 2d 3e | 73 61 6c 6c 6f 63 2c 20 |ate, r->|salloc, |
|00005100| 72 2d 3e 73 69 6e 64 65 | 78 29 3b 0d 20 20 72 2d |r->sinde|x);.  r-|
|00005110| 3e 73 74 61 74 65 73 5b | 69 5d 2e 68 61 73 68 20 |>states[|i].hash |
|00005120| 3d 20 68 61 73 68 3b 0d | 20 20 4d 41 4c 4c 4f 43 |= hash;.|  MALLOC|
|00005130| 28 72 2d 3e 73 74 61 74 | 65 73 5b 69 5d 2e 65 6c |(r->stat|es[i].el|
|00005140| 65 6d 73 2e 65 6c 65 6d | 73 2c 20 5f 70 6f 73 69 |ems.elem|s, _posi|
|00005150| 74 69 6f 6e 2c 20 73 2d | 3e 6e 65 6c 65 6d 29 3b |tion, s-|>nelem);|
|00005160| 0d 20 20 63 6f 70 79 28 | 73 2c 20 26 72 2d 3e 73 |.  copy(|s, &r->s|
|00005170| 74 61 74 65 73 5b 69 5d | 2e 65 6c 65 6d 73 29 3b |tates[i]|.elems);|
|00005180| 0d 20 20 72 2d 3e 73 74 | 61 74 65 73 5b 69 5d 2e |.  r->st|ates[i].|
|00005190| 6e 65 77 6c 69 6e 65 20 | 3d 20 6e 65 77 6c 69 6e |newline |= newlin|
|000051a0| 65 3b 0d 20 20 72 2d 3e | 73 74 61 74 65 73 5b 69 |e;.  r->|states[i|
|000051b0| 5d 2e 6c 65 74 74 65 72 | 20 3d 20 6c 65 74 74 65 |].letter| = lette|
|000051c0| 72 3b 0d 20 20 72 2d 3e | 73 74 61 74 65 73 5b 69 |r;.  r->|states[i|
|000051d0| 5d 2e 62 61 63 6b 72 65 | 66 20 3d 20 30 3b 0d 20 |].backre|f = 0;. |
|000051e0| 20 72 2d 3e 73 74 61 74 | 65 73 5b 69 5d 2e 63 6f | r->stat|es[i].co|
|000051f0| 6e 73 74 72 61 69 6e 74 | 20 3d 20 30 3b 0d 20 20 |nstraint| = 0;.  |
|00005200| 72 2d 3e 73 74 61 74 65 | 73 5b 69 5d 2e 66 69 72 |r->state|s[i].fir|
|00005210| 73 74 5f 65 6e 64 20 3d | 20 30 3b 0d 20 20 66 6f |st_end =| 0;.  fo|
|00005220| 72 20 28 6a 20 3d 20 30 | 3b 20 6a 20 3c 20 73 2d |r (j = 0|; j < s-|
|00005230| 3e 6e 65 6c 65 6d 3b 20 | 2b 2b 6a 29 0d 20 20 20 |>nelem; |++j).   |
|00005240| 20 69 66 20 28 72 2d 3e | 74 6f 6b 65 6e 73 5b 73 | if (r->|tokens[s|
|00005250| 2d 3e 65 6c 65 6d 73 5b | 6a 5d 2e 69 6e 64 65 78 |->elems[|j].index|
|00005260| 5d 20 3c 20 30 29 0d 20 | 20 20 20 20 20 7b 0d 09 |] < 0). |     {..|
|00005270| 63 6f 6e 73 74 72 61 69 | 6e 74 20 3d 20 73 2d 3e |constrai|nt = s->|
|00005280| 65 6c 65 6d 73 5b 6a 5d | 2e 63 6f 6e 73 74 72 61 |elems[j]|.constra|
|00005290| 69 6e 74 3b 0d 09 69 66 | 20 28 5f 53 55 43 43 45 |int;..if| (_SUCCE|
|000052a0| 45 44 53 5f 49 4e 5f 43 | 4f 4e 54 45 58 54 28 63 |EDS_IN_C|ONTEXT(c|
|000052b0| 6f 6e 73 74 72 61 69 6e | 74 2c 20 6e 65 77 6c 69 |onstrain|t, newli|
|000052c0| 6e 65 2c 20 30 2c 20 6c | 65 74 74 65 72 2c 20 30 |ne, 0, l|etter, 0|
|000052d0| 29 0d 09 20 20 20 20 7c | 7c 20 5f 53 55 43 43 45 |)..    ||| _SUCCE|
|000052e0| 45 44 53 5f 49 4e 5f 43 | 4f 4e 54 45 58 54 28 63 |EDS_IN_C|ONTEXT(c|
|000052f0| 6f 6e 73 74 72 61 69 6e | 74 2c 20 6e 65 77 6c 69 |onstrain|t, newli|
|00005300| 6e 65 2c 20 30 2c 20 6c | 65 74 74 65 72 2c 20 31 |ne, 0, l|etter, 1|
|00005310| 29 0d 09 20 20 20 20 7c | 7c 20 5f 53 55 43 43 45 |)..    ||| _SUCCE|
|00005320| 45 44 53 5f 49 4e 5f 43 | 4f 4e 54 45 58 54 28 63 |EDS_IN_C|ONTEXT(c|
|00005330| 6f 6e 73 74 72 61 69 6e | 74 2c 20 6e 65 77 6c 69 |onstrain|t, newli|
|00005340| 6e 65 2c 20 31 2c 20 6c | 65 74 74 65 72 2c 20 30 |ne, 1, l|etter, 0|
|00005350| 29 0d 09 20 20 20 20 7c | 7c 20 5f 53 55 43 43 45 |)..    ||| _SUCCE|
|00005360| 45 44 53 5f 49 4e 5f 43 | 4f 4e 54 45 58 54 28 63 |EDS_IN_C|ONTEXT(c|
|00005370| 6f 6e 73 74 72 61 69 6e | 74 2c 20 6e 65 77 6c 69 |onstrain|t, newli|
|00005380| 6e 65 2c 20 31 2c 20 6c | 65 74 74 65 72 2c 20 31 |ne, 1, l|etter, 1|
|00005390| 29 29 0d 09 20 20 72 2d | 3e 73 74 61 74 65 73 5b |))..  r-|>states[|
|000053a0| 69 5d 2e 63 6f 6e 73 74 | 72 61 69 6e 74 20 7c 3d |i].const|raint |=|
|000053b0| 20 63 6f 6e 73 74 72 61 | 69 6e 74 3b 0d 09 69 66 | constra|int;..if|
|000053c0| 20 28 21 20 72 2d 3e 73 | 74 61 74 65 73 5b 69 5d | (! r->s|tates[i]|
|000053d0| 2e 66 69 72 73 74 5f 65 | 6e 64 29 0d 09 20 20 72 |.first_e|nd)..  r|
|000053e0| 2d 3e 73 74 61 74 65 73 | 5b 69 5d 2e 66 69 72 73 |->states|[i].firs|
|000053f0| 74 5f 65 6e 64 20 3d 20 | 72 2d 3e 74 6f 6b 65 6e |t_end = |r->token|
|00005400| 73 5b 73 2d 3e 65 6c 65 | 6d 73 5b 6a 5d 2e 69 6e |s[s->ele|ms[j].in|
|00005410| 64 65 78 5d 3b 0d 20 20 | 20 20 20 20 7d 0d 20 20 |dex];.  |    }.  |
|00005420| 20 20 65 6c 73 65 20 69 | 66 20 28 72 2d 3e 74 6f |  else i|f (r->to|
|00005430| 6b 65 6e 73 5b 73 2d 3e | 65 6c 65 6d 73 5b 6a 5d |kens[s->|elems[j]|
|00005440| 2e 69 6e 64 65 78 5d 20 | 3d 3d 20 5f 42 41 43 4b |.index] |== _BACK|
|00005450| 52 45 46 29 0d 20 20 20 | 20 20 20 7b 0d 09 72 2d |REF).   |   {..r-|
|00005460| 3e 73 74 61 74 65 73 5b | 69 5d 2e 63 6f 6e 73 74 |>states[|i].const|
|00005470| 72 61 69 6e 74 20 3d 20 | 5f 4e 4f 5f 43 4f 4e 53 |raint = |_NO_CONS|
|00005480| 54 52 41 49 4e 54 3b 0d | 09 72 2d 3e 73 74 61 74 |TRAINT;.|.r->stat|
|00005490| 65 73 5b 69 5d 2e 62 61 | 63 6b 72 65 66 20 3d 20 |es[i].ba|ckref = |
|000054a0| 31 3b 0d 20 20 20 20 20 | 20 7d 0d 0d 20 20 2b 2b |1;.     | }..  ++|
|000054b0| 72 2d 3e 73 69 6e 64 65 | 78 3b 0d 0d 20 20 72 65 |r->sinde|x;..  re|
|000054c0| 74 75 72 6e 20 69 3b 0d | 7d 0d 0c 0d 2f 2a 20 46 |turn i;.|}.../* F|
|000054d0| 69 6e 64 20 74 68 65 20 | 65 70 73 69 6c 6f 6e 20 |ind the |epsilon |
|000054e0| 63 6c 6f 73 75 72 65 20 | 6f 66 20 61 20 73 65 74 |closure |of a set|
|000054f0| 20 6f 66 20 70 6f 73 69 | 74 69 6f 6e 73 2e 20 20 | of posi|tions.  |
|00005500| 49 66 20 61 6e 79 20 70 | 6f 73 69 74 69 6f 6e 20 |If any p|osition |
|00005510| 6f 66 20 74 68 65 20 73 | 65 74 0d 20 20 20 63 6f |of the s|et.   co|
|00005520| 6e 74 61 69 6e 73 20 61 | 20 73 79 6d 62 6f 6c 20 |ntains a| symbol |
|00005530| 74 68 61 74 20 6d 61 74 | 63 68 65 73 20 74 68 65 |that mat|ches the|
|00005540| 20 65 6d 70 74 79 20 73 | 74 72 69 6e 67 20 69 6e | empty s|tring in|
|00005550| 20 73 6f 6d 65 20 63 6f | 6e 74 65 78 74 2c 20 72 | some co|ntext, r|
|00005560| 65 70 6c 61 63 65 0d 20 | 20 20 74 68 61 74 20 70 |eplace. |  that p|
|00005570| 6f 73 69 74 69 6f 6e 20 | 77 69 74 68 20 74 68 65 |osition |with the|
|00005580| 20 65 6c 65 6d 65 6e 74 | 73 20 6f 66 20 69 74 73 | element|s of its|
|00005590| 20 66 6f 6c 6c 6f 77 20 | 6c 61 62 65 6c 65 64 20 | follow |labeled |
|000055a0| 77 69 74 68 20 61 6e 20 | 61 70 70 72 6f 70 72 69 |with an |appropri|
|000055b0| 61 74 65 0d 20 20 20 63 | 6f 6e 73 74 72 61 69 6e |ate.   c|onstrain|
|000055c0| 74 2e 20 20 52 65 70 65 | 61 74 20 65 78 68 61 75 |t.  Repe|at exhau|
|000055d0| 73 74 69 76 65 6c 79 20 | 75 6e 74 69 6c 20 6e 6f |stively |until no|
|000055e0| 20 66 75 6e 6e 79 20 70 | 6f 73 69 74 69 6f 6e 73 | funny p|ositions|
|000055f0| 20 61 72 65 20 6c 65 66 | 74 2e 0d 20 20 20 53 2d | are lef|t..   S-|
|00005600| 3e 65 6c 65 6d 73 20 6d | 75 73 74 20 62 65 20 6c |>elems m|ust be l|
|00005610| 61 72 67 65 20 65 6e 6f | 75 67 68 20 74 6f 20 68 |arge eno|ugh to h|
|00005620| 6f 6c 64 20 74 68 65 20 | 72 65 73 75 6c 74 2e 20 |old the |result. |
|00005630| 2a 2f 0d 65 70 73 63 6c | 6f 73 75 72 65 28 73 2c |*/.epscl|osure(s,|
|00005640| 20 72 29 0d 20 20 20 20 | 20 5f 70 6f 73 69 74 69 | r).    | _positi|
|00005650| 6f 6e 5f 73 65 74 20 2a | 73 3b 0d 20 20 20 20 20 |on_set *|s;.     |
|00005660| 73 74 72 75 63 74 20 72 | 65 67 65 78 70 20 2a 72 |struct r|egexp *r|
|00005670| 3b 0d 7b 0d 20 20 69 6e | 74 20 69 2c 20 6a 3b 0d |;.{.  in|t i, j;.|
|00005680| 20 20 69 6e 74 20 2a 76 | 69 73 69 74 65 64 3b 0d |  int *v|isited;.|
|00005690| 20 20 5f 70 6f 73 69 74 | 69 6f 6e 20 70 2c 20 6f |  _posit|ion p, o|
|000056a0| 6c 64 3b 0d 0d 20 20 4d | 41 4c 4c 4f 43 28 76 69 |ld;..  M|ALLOC(vi|
|000056b0| 73 69 74 65 64 2c 20 69 | 6e 74 2c 20 72 2d 3e 74 |sited, i|nt, r->t|
|000056c0| 69 6e 64 65 78 29 3b 0d | 20 20 66 6f 72 20 28 69 |index);.|  for (i|
|000056d0| 20 3d 20 30 3b 20 69 20 | 3c 20 72 2d 3e 74 69 6e | = 0; i |< r->tin|
|000056e0| 64 65 78 3b 20 2b 2b 69 | 29 0d 20 20 20 20 76 69 |dex; ++i|).    vi|
|000056f0| 73 69 74 65 64 5b 69 5d | 20 3d 20 30 3b 0d 0d 20 |sited[i]| = 0;.. |
|00005700| 20 66 6f 72 20 28 69 20 | 3d 20 30 3b 20 69 20 3c | for (i |= 0; i <|
|00005710| 20 73 2d 3e 6e 65 6c 65 | 6d 3b 20 2b 2b 69 29 0d | s->nele|m; ++i).|
|00005720| 20 20 20 20 69 66 20 28 | 72 2d 3e 74 6f 6b 65 6e |    if (|r->token|
|00005730| 73 5b 73 2d 3e 65 6c 65 | 6d 73 5b 69 5d 2e 69 6e |s[s->ele|ms[i].in|
|00005740| 64 65 78 5d 20 3e 3d 20 | 5f 4e 4f 54 43 48 41 52 |dex] >= |_NOTCHAR|
|00005750| 0d 09 26 26 20 72 2d 3e | 74 6f 6b 65 6e 73 5b 73 |..&& r->|tokens[s|
|00005760| 2d 3e 65 6c 65 6d 73 5b | 69 5d 2e 69 6e 64 65 78 |->elems[|i].index|
|00005770| 5d 20 21 3d 20 5f 42 41 | 43 4b 52 45 46 0d 09 26 |] != _BA|CKREF..&|
|00005780| 26 20 72 2d 3e 74 6f 6b | 65 6e 73 5b 73 2d 3e 65 |& r->tok|ens[s->e|
|00005790| 6c 65 6d 73 5b 69 5d 2e | 69 6e 64 65 78 5d 20 3c |lems[i].|index] <|
|000057a0| 20 5f 53 45 54 29 0d 20 | 20 20 20 20 20 7b 0d 09 | _SET). |     {..|
|000057b0| 6f 6c 64 20 3d 20 73 2d | 3e 65 6c 65 6d 73 5b 69 |old = s-|>elems[i|
|000057c0| 5d 3b 0d 09 70 2e 63 6f | 6e 73 74 72 61 69 6e 74 |];..p.co|nstraint|
|000057d0| 20 3d 20 6f 6c 64 2e 63 | 6f 6e 73 74 72 61 69 6e | = old.c|onstrain|
|000057e0| 74 3b 0d 09 64 65 6c 65 | 74 65 28 73 2d 3e 65 6c |t;..dele|te(s->el|
|000057f0| 65 6d 73 5b 69 5d 2c 20 | 73 29 3b 0d 09 69 66 20 |ems[i], |s);..if |
|00005800| 28 76 69 73 69 74 65 64 | 5b 6f 6c 64 2e 69 6e 64 |(visited|[old.ind|
|00005810| 65 78 5d 29 0d 09 20 20 | 7b 0d 09 20 20 20 20 2d |ex])..  |{..    -|
|00005820| 2d 69 3b 0d 09 20 20 20 | 20 63 6f 6e 74 69 6e 75 |-i;..   | continu|
|00005830| 65 3b 0d 09 20 20 7d 0d | 09 76 69 73 69 74 65 64 |e;..  }.|.visited|
|00005840| 5b 6f 6c 64 2e 69 6e 64 | 65 78 5d 20 3d 20 31 3b |[old.ind|ex] = 1;|
|00005850| 0d 09 73 77 69 74 63 68 | 20 28 72 2d 3e 74 6f 6b |..switch| (r->tok|
|00005860| 65 6e 73 5b 6f 6c 64 2e | 69 6e 64 65 78 5d 29 0d |ens[old.|index]).|
|00005870| 09 20 20 7b 0d 09 20 20 | 63 61 73 65 20 5f 42 45 |.  {..  |case _BE|
|00005880| 47 4c 49 4e 45 3a 0d 09 | 20 20 20 20 70 2e 63 6f |GLINE:..|    p.co|
|00005890| 6e 73 74 72 61 69 6e 74 | 20 26 3d 20 5f 42 45 47 |nstraint| &= _BEG|
|000058a0| 4c 49 4e 45 5f 43 4f 4e | 53 54 52 41 49 4e 54 3b |LINE_CON|STRAINT;|
|000058b0| 0d 09 20 20 20 20 62 72 | 65 61 6b 3b 0d 09 20 20 |..    br|eak;..  |
|000058c0| 63 61 73 65 20 5f 45 4e | 44 4c 49 4e 45 3a 0d 09 |case _EN|DLINE:..|
|000058d0| 20 20 20 20 70 2e 63 6f | 6e 73 74 72 61 69 6e 74 |    p.co|nstraint|
|000058e0| 20 26 3d 20 5f 45 4e 44 | 4c 49 4e 45 5f 43 4f 4e | &= _END|LINE_CON|
|000058f0| 53 54 52 41 49 4e 54 3b | 0d 09 20 20 20 20 62 72 |STRAINT;|..    br|
|00005900| 65 61 6b 3b 0d 09 20 20 | 63 61 73 65 20 5f 42 45 |eak;..  |case _BE|
|00005910| 47 57 4f 52 44 3a 0d 09 | 20 20 20 20 70 2e 63 6f |GWORD:..|    p.co|
|00005920| 6e 73 74 72 61 69 6e 74 | 20 26 3d 20 5f 42 45 47 |nstraint| &= _BEG|
|00005930| 57 4f 52 44 5f 43 4f 4e | 53 54 52 41 49 4e 54 3b |WORD_CON|STRAINT;|
|00005940| 0d 09 20 20 20 20 62 72 | 65 61 6b 3b 0d 09 20 20 |..    br|eak;..  |
|00005950| 63 61 73 65 20 5f 45 4e | 44 57 4f 52 44 3a 0d 09 |case _EN|DWORD:..|
|00005960| 20 20 20 20 70 2e 63 6f | 6e 73 74 72 61 69 6e 74 |    p.co|nstraint|
|00005970| 20 26 3d 20 5f 45 4e 44 | 57 4f 52 44 5f 43 4f 4e | &= _END|WORD_CON|
|00005980| 53 54 52 41 49 4e 54 3b | 0d 09 20 20 20 20 62 72 |STRAINT;|..    br|
|00005990| 65 61 6b 3b 0d 09 20 20 | 63 61 73 65 20 5f 4c 49 |eak;..  |case _LI|
|000059a0| 4d 57 4f 52 44 3a 0d 09 | 20 20 20 20 70 2e 63 6f |MWORD:..|    p.co|
|000059b0| 6e 73 74 72 61 69 6e 74 | 20 26 3d 20 5f 45 4e 44 |nstraint| &= _END|
|000059c0| 57 4f 52 44 5f 43 4f 4e | 53 54 52 41 49 4e 54 3b |WORD_CON|STRAINT;|
|000059d0| 0d 09 20 20 20 20 62 72 | 65 61 6b 3b 0d 09 20 20 |..    br|eak;..  |
|000059e0| 63 61 73 65 20 5f 4e 4f | 54 4c 49 4d 57 4f 52 44 |case _NO|TLIMWORD|
|000059f0| 3a 0d 09 20 20 20 20 70 | 2e 63 6f 6e 73 74 72 61 |:..    p|.constra|
|00005a00| 69 6e 74 20 26 3d 20 5f | 4e 4f 54 4c 49 4d 57 4f |int &= _|NOTLIMWO|
|00005a10| 52 44 5f 43 4f 4e 53 54 | 52 41 49 4e 54 3b 0d 09 |RD_CONST|RAINT;..|
|00005a20| 20 20 20 20 62 72 65 61 | 6b 3b 0d 09 20 20 7d 0d |    brea|k;..  }.|
|00005a30| 09 66 6f 72 20 28 6a 20 | 3d 20 30 3b 20 6a 20 3c |.for (j |= 0; j <|
|00005a40| 20 72 2d 3e 66 6f 6c 6c | 6f 77 73 5b 6f 6c 64 2e | r->foll|ows[old.|
|00005a50| 69 6e 64 65 78 5d 2e 6e | 65 6c 65 6d 3b 20 2b 2b |index].n|elem; ++|
|00005a60| 6a 29 0d 09 20 20 7b 0d | 09 20 20 20 20 70 2e 69 |j)..  {.|.    p.i|
|00005a70| 6e 64 65 78 20 3d 20 72 | 2d 3e 66 6f 6c 6c 6f 77 |ndex = r|->follow|
|00005a80| 73 5b 6f 6c 64 2e 69 6e | 64 65 78 5d 2e 65 6c 65 |s[old.in|dex].ele|
|00005a90| 6d 73 5b 6a 5d 2e 69 6e | 64 65 78 3b 0d 09 20 20 |ms[j].in|dex;..  |
|00005aa0| 20 20 69 6e 73 65 72 74 | 28 70 2c 20 73 29 3b 0d |  insert|(p, s);.|
|00005ab0| 09 20 20 7d 0d 09 2f 2a | 20 46 6f 72 63 65 20 72 |.  }../*| Force r|
|00005ac0| 65 73 63 61 6e 20 74 6f | 20 73 74 61 72 74 20 61 |escan to| start a|
|00005ad0| 74 20 74 68 65 20 62 65 | 67 69 6e 6e 69 6e 67 2e |t the be|ginning.|
|00005ae0| 20 2a 2f 0d 09 69 20 3d | 20 2d 31 3b 0d 20 20 20 | */..i =| -1;.   |
|00005af0| 20 20 20 7d 0d 0d 20 20 | 66 72 65 65 28 76 69 73 |   }..  |free(vis|
|00005b00| 69 74 65 64 29 3b 0d 7d | 0d 0c 0d 2f 2a 20 50 65 |ited);.}|.../* Pe|
|00005b10| 72 66 6f 72 6d 20 62 6f | 74 74 6f 6d 2d 75 70 20 |rform bo|ttom-up |
|00005b20| 61 6e 61 6c 79 73 69 73 | 20 6f 6e 20 74 68 65 20 |analysis| on the |
|00005b30| 70 61 72 73 65 20 74 72 | 65 65 2c 20 63 6f 6d 70 |parse tr|ee, comp|
|00005b40| 75 74 69 6e 67 20 76 61 | 72 69 6f 75 73 20 66 75 |uting va|rious fu|
|00005b50| 6e 63 74 69 6f 6e 73 2e | 0d 20 20 20 4e 6f 74 65 |nctions.|.   Note|
|00005b60| 20 74 68 61 74 20 61 74 | 20 74 68 69 73 20 70 6f | that at| this po|
|00005b70| 69 6e 74 2c 20 77 65 27 | 72 65 20 70 72 65 74 65 |int, we'|re prete|
|00005b80| 6e 64 69 6e 67 20 63 6f | 6e 73 74 72 75 63 74 73 |nding co|nstructs|
|00005b90| 20 6c 69 6b 65 20 5c 3c | 20 61 72 65 20 72 65 61 | like \<| are rea|
|00005ba0| 6c 0d 20 20 20 63 68 61 | 72 61 63 74 65 72 73 20 |l.   cha|racters |
|00005bb0| 72 61 74 68 65 72 20 74 | 68 61 6e 20 63 6f 6e 73 |rather t|han cons|
|00005bc0| 74 72 61 69 6e 74 73 20 | 6f 6e 20 77 68 61 74 20 |traints |on what |
|00005bd0| 63 61 6e 20 66 6f 6c 6c | 6f 77 20 74 68 65 6d 2e |can foll|ow them.|
|00005be0| 0d 0d 20 20 20 4e 75 6c | 6c 61 62 6c 65 3a 20 20 |..   Nul|lable:  |
|00005bf0| 41 20 6e 6f 64 65 20 69 | 73 20 6e 75 6c 6c 61 62 |A node i|s nullab|
|00005c00| 6c 65 20 69 66 20 69 74 | 20 69 73 20 61 74 20 74 |le if it| is at t|
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