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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 00 09 72 65 67 63 6f 6d | 70 2e 63 00 00 00 00 00 |..regcom|p.c.....|
|00000010| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000020| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000030| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000040| 00 54 45 58 54 4d 50 53 | 20 00 00 00 00 00 00 00 |.TEXTMPS| .......|
|00000050| 00 00 00 00 00 7f 3a 00 | 00 01 ac a6 eb 04 74 a6 |......:.|......t.|
|00000060| eb 04 74 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |..t.....|........|
|00000070| 00 00 00 00 00 00 00 00 | 00 00 81 81 f9 28 00 00 |........|.....(..|
|00000080| 2f 2a 20 4e 4f 54 45 3a | 20 74 68 69 73 20 69 73 |/* NOTE:| this is|
|00000090| 20 64 65 72 69 76 65 64 | 20 66 72 6f 6d 20 48 65 | derived| from He|
|000000a0| 6e 72 79 20 53 70 65 6e | 63 65 72 27 73 20 72 65 |nry Spen|cer's re|
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|000000c0| 68 6f 75 6c 64 20 6e 6f | 74 0d 20 2a 20 63 6f 6e |hould no|t. * con|
|000000d0| 66 75 73 65 64 20 77 69 | 74 68 20 74 68 65 20 6f |fused wi|th the o|
|000000e0| 72 69 67 69 6e 61 6c 20 | 70 61 63 6b 61 67 65 20 |riginal |package |
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|00000120| 69 74 69 6f 6e 61 6c 20 | 6e 6f 74 65 3a 20 74 68 |itional |note: th|
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|00000170| 2e 20 20 49 6e 20 73 6f | 6d 65 20 73 70 6f 74 73 |.  In so|me spots|
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|000001e0| 2e 0d 20 2a 2f 0d 0d 2f | 2a 20 24 52 43 53 66 69 |.. */../|* $RCSfi|
|000001f0| 6c 65 3a 20 72 65 67 63 | 6f 6d 70 2e 63 2c 76 20 |le: regc|omp.c,v |
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|00000220| 36 2f 30 38 20 31 35 3a | 32 33 3a 33 36 20 24 0d |6/08 15:|23:36 $.|
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|00000470| 65 72 74 61 69 6e 20 70 | 61 74 74 65 72 6e 73 20 |ertain p|atterns |
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|000004c0| 72 65 70 61 72 65 64 20 | 66 6f 72 20 63 74 79 70 |repared |for ctyp|
|000004d0| 65 20 69 6d 70 6c 65 6d | 65 6e 74 61 74 69 6f 6e |e implem|entation|
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|00000520| 20 31 31 3a 34 38 3a 32 | 34 20 20 6c 77 61 6c 6c | 11:48:2|4  lwall|
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|00000570| 79 20 6f 70 74 69 6d 69 | 7a 65 64 20 74 6f 20 6e |y optimi|zed to n|
|00000580| 6f 74 20 6d 61 74 63 68 | 20 22 78 78 78 20 78 78 |ot match| "xxx xx|
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|000005a0| 77 6f 75 6c 64 6e 27 74 | 20 75 73 65 20 70 72 65 |wouldn't| use pre|
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|000005c0| 20 69 74 20 73 74 61 72 | 74 65 64 20 77 69 74 68 | it star|ted with|
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|00000720| 48 65 6e 72 79 20 53 70 | 65 6e 63 65 72 2e 20 20 |Henry Sp|encer.  |
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|00000760| 73 69 6f 6e 20 69 73 20 | 67 72 61 6e 74 65 64 20 |sion is |granted |
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|00000bb0| 4f 53 0d 23 20 69 66 20 | 64 65 66 69 6e 65 64 28 |OS.# if |defined(|
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|00000bf0| 74 65 73 74 20 38 35 20 | 75 6e 6c 65 73 73 20 77 |test 85 |unless w|
|00000c00| 65 20 74 75 72 6e 20 74 | 68 69 73 20 6f 66 66 20 |e turn t|his off |
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|00000c20| 69 6d 69 7a 65 28 22 61 | 22 2c 6f 66 66 29 0d 20 |imize("a|",off). |
|00000c30| 2f 2a 20 42 75 74 20 4d | 53 43 20 36 2e 30 30 41 |/* But M|SC 6.00A|
|00000c40| 20 69 73 20 68 61 70 70 | 79 20 77 69 74 68 20 27 | is happ|y with '|
|00000c50| 77 27 2c 20 66 6f 72 20 | 61 6c 69 61 73 65 73 20 |w', for |aliases |
|00000c60| 6f 6e 6c 79 20 61 63 72 | 6f 73 73 20 66 75 6e 63 |only acr|oss func|
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|00000ce0| 54 49 43 09 73 74 61 74 | 69 63 0d 23 65 6e 64 69 |TIC.stat|ic.#endi|
|00000cf0| 66 0d 0d 23 64 65 66 69 | 6e 65 09 49 53 4d 55 4c |f..#defi|ne.ISMUL|
|00000d00| 54 31 28 63 29 09 28 28 | 63 29 20 3d 3d 20 27 2a |T1(c).((|c) == '*|
|00000d10| 27 20 7c 7c 20 28 63 29 | 20 3d 3d 20 27 2b 27 20 |' || (c)| == '+' |
|00000d20| 7c 7c 20 28 63 29 20 3d | 3d 20 27 3f 27 29 0d 23 ||| (c) =|= '?').#|
|00000d30| 64 65 66 69 6e 65 09 49 | 53 4d 55 4c 54 32 28 73 |define.I|SMULT2(s|
|00000d40| 29 09 28 28 2a 73 29 20 | 3d 3d 20 27 2a 27 20 7c |).((*s) |== '*' ||
|00000d50| 7c 20 28 2a 73 29 20 3d | 3d 20 27 2b 27 20 7c 7c || (*s) =|= '+' |||
|00000d60| 20 28 2a 73 29 20 3d 3d | 20 27 3f 27 20 7c 7c 20 | (*s) ==| '?' || |
|00000d70| 5c 0d 09 28 28 2a 73 29 | 20 3d 3d 20 27 7b 27 20 |\..((*s)| == '{' |
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|00001ad0| 68 20 3d 20 30 3b 0d 09 | 72 2d 3e 72 65 67 6d 75 |h = 0;..|r->regmu|
|00001ae0| 73 74 20 3d 20 4e 75 6c | 6c 73 74 72 3b 0d 09 72 |st = Nul|lstr;..r|
|00001af0| 2d 3e 72 65 67 62 61 63 | 6b 20 3d 20 2d 31 3b 0d |->regbac|k = -1;.|
|00001b00| 09 72 2d 3e 72 65 67 73 | 74 63 6c 61 73 73 20 3d |.r->regs|tclass =|
|00001b10| 20 4e 75 6c 6c 63 68 3b | 0d 09 73 63 61 6e 20 3d | Nullch;|..scan =|
|00001b20| 20 72 2d 3e 70 72 6f 67 | 72 61 6d 2b 31 3b 09 09 | r->prog|ram+1;..|
|00001b30| 09 2f 2a 20 46 69 72 73 | 74 20 42 52 41 4e 43 48 |./* Firs|t BRANCH|
|00001b40| 2e 20 2a 2f 0d 09 69 66 | 20 28 4f 50 28 72 65 67 |. */..if| (OP(reg|
|00001b50| 6e 65 78 74 28 73 63 61 | 6e 29 29 20 3d 3d 20 45 |next(sca|n)) == E|
|00001b60| 4e 44 29 20 7b 2f 2a 20 | 4f 6e 6c 79 20 6f 6e 65 |ND) {/* |Only one|
|00001b70| 20 74 6f 70 2d 6c 65 76 | 65 6c 20 63 68 6f 69 63 | top-lev|el choic|
|00001b80| 65 2e 20 2a 2f 0d 09 09 | 73 63 61 6e 20 3d 20 4e |e. */...|scan = N|
|00001b90| 45 58 54 4f 50 45 52 28 | 73 63 61 6e 29 3b 0d 0d |EXTOPER(|scan);..|
|00001ba0| 09 09 66 69 72 73 74 20 | 3d 20 73 63 61 6e 3b 0d |..first |= scan;.|
|00001bb0| 09 09 77 68 69 6c 65 20 | 28 28 4f 50 28 66 69 72 |..while |((OP(fir|
|00001bc0| 73 74 29 20 3d 3d 20 4f | 50 45 4e 20 26 26 20 28 |st) == O|PEN && (|
|00001bd0| 73 61 77 6f 70 65 6e 20 | 3d 20 31 29 29 20 7c 7c |sawopen |= 1)) |||
|00001be0| 0d 09 09 20 20 20 20 28 | 4f 50 28 66 69 72 73 74 |...    (|OP(first|
|00001bf0| 29 20 3d 3d 20 42 52 41 | 4e 43 48 20 26 26 20 4f |) == BRA|NCH && O|
|00001c00| 50 28 72 65 67 6e 65 78 | 74 28 66 69 72 73 74 29 |P(regnex|t(first)|
|00001c10| 29 20 21 3d 20 42 52 41 | 4e 43 48 29 20 7c 7c 0d |) != BRA|NCH) ||.|
|00001c20| 09 09 20 20 20 20 28 4f | 50 28 66 69 72 73 74 29 |..    (O|P(first)|
|00001c30| 20 3d 3d 20 50 4c 55 53 | 29 20 7c 7c 0d 09 09 20 | == PLUS|) ||... |
|00001c40| 20 20 20 28 4f 50 28 66 | 69 72 73 74 29 20 3d 3d |   (OP(f|irst) ==|
|00001c50| 20 43 55 52 4c 59 20 26 | 26 20 41 52 47 31 28 66 | CURLY &|& ARG1(f|
|00001c60| 69 72 73 74 29 20 3e 20 | 30 29 20 29 20 7b 0d 09 |irst) > |0) ) {..|
|00001c70| 09 09 69 66 20 28 4f 50 | 28 66 69 72 73 74 29 20 |..if (OP|(first) |
|00001c80| 3d 3d 20 50 4c 55 53 29 | 0d 09 09 09 20 20 20 20 |== PLUS)|....    |
|00001c90| 73 61 77 70 6c 75 73 20 | 3d 20 31 3b 0d 09 09 09 |sawplus |= 1;....|
|00001ca0| 65 6c 73 65 0d 09 09 09 | 20 20 20 20 66 69 72 73 |else....|    firs|
|00001cb0| 74 20 2b 3d 20 72 65 67 | 61 72 67 6c 65 6e 5b 4f |t += reg|arglen[O|
|00001cc0| 50 28 66 69 72 73 74 29 | 5d 3b 0d 09 09 09 66 69 |P(first)|];....fi|
|00001cd0| 72 73 74 20 3d 20 4e 45 | 58 54 4f 50 45 52 28 66 |rst = NE|XTOPER(f|
|00001ce0| 69 72 73 74 29 3b 0d 09 | 09 7d 0d 0d 09 09 2f 2a |irst);..|.}..../*|
|00001cf0| 20 53 74 61 72 74 69 6e | 67 2d 70 6f 69 6e 74 20 | Startin|g-point |
|00001d00| 69 6e 66 6f 2e 20 2a 2f | 0d 09 20 20 20 20 61 67 |info. */|..    ag|
|00001d10| 61 69 6e 3a 0d 09 09 69 | 66 20 28 4f 50 28 66 69 |ain:...i|f (OP(fi|
|00001d20| 72 73 74 29 20 3d 3d 20 | 45 58 41 43 54 4c 59 29 |rst) == |EXACTLY)|
|00001d30| 20 7b 0d 09 09 09 72 2d | 3e 72 65 67 73 74 61 72 | {....r-|>regstar|
|00001d40| 74 20 3d 0d 09 09 09 20 | 20 20 20 73 74 72 5f 6d |t =.... |   str_m|
|00001d50| 61 6b 65 28 4f 50 45 52 | 41 4e 44 28 66 69 72 73 |ake(OPER|AND(firs|
|00001d60| 74 29 2b 31 2c 2a 4f 50 | 45 52 41 4e 44 28 66 69 |t)+1,*OP|ERAND(fi|
|00001d70| 72 73 74 29 29 3b 0d 09 | 09 09 69 66 20 28 72 2d |rst));..|..if (r-|
|00001d80| 3e 72 65 67 73 74 61 72 | 74 2d 3e 73 74 72 5f 63 |>regstar|t->str_c|
|00001d90| 75 72 20 3e 20 21 28 73 | 61 77 73 74 75 64 79 7c |ur > !(s|awstudy||
|00001da0| 66 6f 6c 64 29 29 0d 09 | 09 09 09 66 62 6d 63 6f |fold))..|...fbmco|
|00001db0| 6d 70 69 6c 65 28 72 2d | 3e 72 65 67 73 74 61 72 |mpile(r-|>regstar|
|00001dc0| 74 2c 66 6f 6c 64 29 3b | 0d 09 09 7d 0d 09 09 65 |t,fold);|...}...e|
|00001dd0| 6c 73 65 20 69 66 20 28 | 28 65 78 70 20 3d 20 69 |lse if (|(exp = i|
|00001de0| 6e 64 65 78 28 73 69 6d | 70 6c 65 2c 4f 50 28 66 |ndex(sim|ple,OP(f|
|00001df0| 69 72 73 74 29 29 29 20 | 26 26 20 65 78 70 20 3e |irst))) |&& exp >|
|00001e00| 20 73 69 6d 70 6c 65 29 | 0d 09 09 09 72 2d 3e 72 | simple)|....r->r|
|00001e10| 65 67 73 74 63 6c 61 73 | 73 20 3d 20 66 69 72 73 |egstclas|s = firs|
|00001e20| 74 3b 0d 09 09 65 6c 73 | 65 20 69 66 20 28 4f 50 |t;...els|e if (OP|
|00001e30| 28 66 69 72 73 74 29 20 | 3d 3d 20 42 4f 55 4e 44 |(first) |== BOUND|
|00001e40| 20 7c 7c 20 4f 50 28 66 | 69 72 73 74 29 20 3d 3d | || OP(f|irst) ==|
|00001e50| 20 4e 42 4f 55 4e 44 29 | 0d 09 09 09 72 2d 3e 72 | NBOUND)|....r->r|
|00001e60| 65 67 73 74 63 6c 61 73 | 73 20 3d 20 66 69 72 73 |egstclas|s = firs|
|00001e70| 74 3b 0d 09 09 65 6c 73 | 65 20 69 66 20 28 4f 50 |t;...els|e if (OP|
|00001e80| 28 66 69 72 73 74 29 20 | 3d 3d 20 42 4f 4c 29 20 |(first) |== BOL) |
|00001e90| 7b 0d 09 09 09 72 2d 3e | 72 65 67 61 6e 63 68 20 |{....r->|reganch |
|00001ea0| 3d 20 52 4f 50 54 5f 41 | 4e 43 48 3b 0d 09 09 09 |= ROPT_A|NCH;....|
|00001eb0| 66 69 72 73 74 20 3d 20 | 4e 45 58 54 4f 50 45 52 |first = |NEXTOPER|
|00001ec0| 28 66 69 72 73 74 29 3b | 0d 09 09 20 20 20 20 09 |(first);|...    .|
|00001ed0| 67 6f 74 6f 20 61 67 61 | 69 6e 3b 0d 09 09 7d 0d |goto aga|in;...}.|
|00001ee0| 09 09 65 6c 73 65 20 69 | 66 20 28 28 4f 50 28 66 |..else i|f ((OP(f|
|00001ef0| 69 72 73 74 29 20 3d 3d | 20 53 54 41 52 20 26 26 |irst) ==| STAR &&|
|00001f00| 20 4f 50 28 4e 45 58 54 | 4f 50 45 52 28 66 69 72 | OP(NEXT|OPER(fir|
|00001f10| 73 74 29 29 20 3d 3d 20 | 41 4e 59 29 20 26 26 0d |st)) == |ANY) &&.|
|00001f20| 09 09 09 20 21 28 72 2d | 3e 72 65 67 61 6e 63 68 |... !(r-|>reganch|
|00001f30| 20 26 20 52 4f 50 54 5f | 41 4e 43 48 29 20 29 20 | & ROPT_|ANCH) ) |
|00001f40| 7b 0d 09 09 09 2f 2a 20 | 74 75 72 6e 20 2e 2a 20 |{..../* |turn .* |
|00001f50| 69 6e 74 6f 20 5e 2e 2a | 20 77 69 74 68 20 61 6e |into ^.*| with an|
|00001f60| 20 69 6d 70 6c 69 65 64 | 20 24 2a 3d 31 20 2a 2f | implied| $*=1 */|
|00001f70| 0d 09 09 09 72 2d 3e 72 | 65 67 61 6e 63 68 20 3d |....r->r|eganch =|
|00001f80| 20 52 4f 50 54 5f 41 4e | 43 48 20 7c 20 52 4f 50 | ROPT_AN|CH | ROP|
|00001f90| 54 5f 49 4d 50 4c 49 43 | 49 54 3b 0d 09 09 09 66 |T_IMPLIC|IT;....f|
|00001fa0| 69 72 73 74 20 3d 20 4e | 45 58 54 4f 50 45 52 28 |irst = N|EXTOPER(|
|00001fb0| 66 69 72 73 74 29 3b 0d | 09 09 20 20 20 20 09 67 |first);.|..    .g|
|00001fc0| 6f 74 6f 20 61 67 61 69 | 6e 3b 0d 09 09 7d 0d 09 |oto agai|n;...}..|
|00001fd0| 09 69 66 20 28 73 61 77 | 70 6c 75 73 20 26 26 20 |.if (saw|plus && |
|00001fe0| 28 21 73 61 77 6f 70 65 | 6e 20 7c 7c 20 21 72 65 |(!sawope|n || !re|
|00001ff0| 67 73 61 77 62 61 63 6b | 29 29 0d 09 09 20 20 20 |gsawback|))...   |
|00002000| 20 72 2d 3e 72 65 67 61 | 6e 63 68 20 7c 3d 20 52 | r->rega|nch |= R|
|00002010| 4f 50 54 5f 53 4b 49 50 | 3b 09 2f 2a 20 78 2b 20 |OPT_SKIP|;./* x+ |
|00002020| 6d 75 73 74 20 6d 61 74 | 63 68 20 31 73 74 20 6f |must mat|ch 1st o|
|00002030| 66 20 72 75 6e 20 2a 2f | 0d 0d 23 69 66 64 65 66 |f run */|..#ifdef|
|00002040| 20 44 45 42 55 47 47 49 | 4e 47 0d 09 09 69 66 20 | DEBUGGI|NG...if |
|00002050| 28 64 65 62 75 67 20 26 | 20 35 31 32 29 0d 09 09 |(debug &| 512)...|
|00002060| 20 20 20 20 66 70 72 69 | 6e 74 66 28 73 74 64 65 |    fpri|ntf(stde|
|00002070| 72 72 2c 22 66 69 72 73 | 74 20 25 64 20 6e 65 78 |rr,"firs|t %d nex|
|00002080| 74 20 25 64 20 6f 66 66 | 73 65 74 20 25 64 5c 6e |t %d off|set %d\n|
|00002090| 22 2c 0d 09 09 20 20 20 | 20 20 20 4f 50 28 66 69 |",...   |   OP(fi|
|000020a0| 72 73 74 29 2c 20 4f 50 | 28 4e 45 58 54 4f 50 45 |rst), OP|(NEXTOPE|
|000020b0| 52 28 66 69 72 73 74 29 | 29 2c 20 66 69 72 73 74 |R(first)|), first|
|000020c0| 20 2d 20 73 63 61 6e 29 | 3b 0d 23 65 6e 64 69 66 | - scan)|;.#endif|
|000020d0| 0d 09 09 2f 2a 0d 09 09 | 20 2a 20 49 66 20 74 68 |.../*...| * If th|
|000020e0| 65 72 65 27 73 20 73 6f | 6d 65 74 68 69 6e 67 20 |ere's so|mething |
|000020f0| 65 78 70 65 6e 73 69 76 | 65 20 69 6e 20 74 68 65 |expensiv|e in the|
|00002100| 20 72 2e 65 2e 2c 20 66 | 69 6e 64 20 74 68 65 0d | r.e., f|ind the.|
|00002110| 09 09 20 2a 20 6c 6f 6e | 67 65 73 74 20 6c 69 74 |.. * lon|gest lit|
|00002120| 65 72 61 6c 20 73 74 72 | 69 6e 67 20 74 68 61 74 |eral str|ing that|
|00002130| 20 6d 75 73 74 20 61 70 | 70 65 61 72 20 61 6e 64 | must ap|pear and|
|00002140| 20 6d 61 6b 65 20 69 74 | 20 74 68 65 0d 09 09 20 | make it| the... |
|00002150| 2a 20 72 65 67 6d 75 73 | 74 2e 20 20 52 65 73 6f |* regmus|t.  Reso|
|00002160| 6c 76 65 20 74 69 65 73 | 20 69 6e 20 66 61 76 6f |lve ties| in favo|
|00002170| 72 20 6f 66 20 6c 61 74 | 65 72 20 73 74 72 69 6e |r of lat|er strin|
|00002180| 67 73 2c 20 73 69 6e 63 | 65 0d 09 09 20 2a 20 74 |gs, sinc|e... * t|
|00002190| 68 65 20 72 65 67 73 74 | 61 72 74 20 63 68 65 63 |he regst|art chec|
|000021a0| 6b 20 77 6f 72 6b 73 20 | 77 69 74 68 20 74 68 65 |k works |with the|
|000021b0| 20 62 65 67 69 6e 6e 69 | 6e 67 20 6f 66 20 74 68 | beginni|ng of th|
|000021c0| 65 20 72 2e 65 2e 0d 09 | 09 20 2a 20 61 6e 64 20 |e r.e...|. * and |
|000021d0| 61 76 6f 69 64 69 6e 67 | 20 64 75 70 6c 69 63 61 |avoiding| duplica|
|000021e0| 74 69 6f 6e 20 73 74 72 | 65 6e 67 74 68 65 6e 73 |tion str|engthens|
|000021f0| 20 63 68 65 63 6b 69 6e | 67 2e 20 20 4e 6f 74 20 | checkin|g.  Not |
|00002200| 61 0d 09 09 20 2a 20 73 | 74 72 6f 6e 67 20 72 65 |a... * s|trong re|
|00002210| 61 73 6f 6e 2c 20 62 75 | 74 20 73 75 66 66 69 63 |ason, bu|t suffic|
|00002220| 69 65 6e 74 20 69 6e 20 | 74 68 65 20 61 62 73 65 |ient in |the abse|
|00002230| 6e 63 65 20 6f 66 20 6f | 74 68 65 72 73 2e 0d 09 |nce of o|thers...|
|00002240| 09 20 2a 20 5b 4e 6f 77 | 20 77 65 20 72 65 73 6f |. * [Now| we reso|
|00002250| 6c 76 65 20 74 69 65 73 | 20 69 6e 20 66 61 76 6f |lve ties| in favo|
|00002260| 72 20 6f 66 20 74 68 65 | 20 65 61 72 6c 69 65 72 |r of the| earlier|
|00002270| 20 73 74 72 69 6e 67 20 | 69 66 0d 09 09 20 2a 20 | string |if... * |
|00002280| 69 74 20 68 61 70 70 65 | 6e 73 20 74 68 61 74 20 |it happe|ns that |
|00002290| 63 75 72 62 61 63 6b 20 | 68 61 73 20 62 65 65 6e |curback |has been|
|000022a0| 20 69 6e 76 61 6c 69 64 | 61 74 65 64 2c 20 73 69 | invalid|ated, si|
|000022b0| 6e 63 65 20 74 68 65 0d | 09 09 20 2a 20 65 61 72 |nce the.|.. * ear|
|000022c0| 6c 69 65 72 20 73 74 72 | 69 6e 67 20 6d 61 79 20 |lier str|ing may |
|000022d0| 62 75 79 20 75 73 20 73 | 6f 6d 65 74 68 69 6e 67 |buy us s|omething|
|000022e0| 20 74 68 65 20 6c 61 74 | 65 72 20 6f 6e 65 20 77 | the lat|er one w|
|000022f0| 6f 6e 27 74 2e 5d 0d 09 | 09 20 2a 2f 0d 09 09 6c |on't.]..|. */...l|
|00002300| 6f 6e 67 69 73 68 20 3d | 20 73 74 72 5f 6d 61 6b |ongish =| str_mak|
|00002310| 65 28 22 22 2c 30 29 3b | 0d 09 09 6c 6f 6e 67 65 |e("",0);|...longe|
|00002320| 73 74 20 3d 20 73 74 72 | 5f 6d 61 6b 65 28 22 22 |st = str|_make(""|
|00002330| 2c 30 29 3b 0d 09 09 6c | 65 6e 20 3d 20 30 3b 0d |,0);...l|en = 0;.|
|00002340| 09 09 6d 69 6e 6c 65 6e | 20 3d 20 30 3b 0d 09 09 |..minlen| = 0;...|
|00002350| 63 75 72 62 61 63 6b 20 | 3d 20 30 3b 0d 09 09 62 |curback |= 0;...b|
|00002360| 61 63 6b 69 73 68 20 3d | 20 30 3b 0d 09 09 62 61 |ackish =| 0;...ba|
|00002370| 63 6b 65 73 74 20 3d 20 | 30 3b 0d 09 09 77 68 69 |ckest = |0;...whi|
|00002380| 6c 65 20 28 4f 50 28 73 | 63 61 6e 29 20 21 3d 20 |le (OP(s|can) != |
|00002390| 45 4e 44 29 20 7b 0d 09 | 09 09 69 66 20 28 4f 50 |END) {..|..if (OP|
|000023a0| 28 73 63 61 6e 29 20 3d | 3d 20 42 52 41 4e 43 48 |(scan) =|= BRANCH|
|000023b0| 29 20 7b 0d 09 09 09 20 | 20 20 20 69 66 20 28 4f |) {.... |   if (O|
|000023c0| 50 28 72 65 67 6e 65 78 | 74 28 73 63 61 6e 29 29 |P(regnex|t(scan))|
|000023d0| 20 3d 3d 20 42 52 41 4e | 43 48 29 20 7b 0d 09 09 | == BRAN|CH) {...|
|000023e0| 09 09 63 75 72 62 61 63 | 6b 20 3d 20 2d 33 30 30 |..curbac|k = -300|
|000023f0| 30 30 3b 0d 09 09 09 09 | 77 68 69 6c 65 20 28 4f |00;.....|while (O|
|00002400| 50 28 73 63 61 6e 29 20 | 3d 3d 20 42 52 41 4e 43 |P(scan) |== BRANC|
|00002410| 48 29 0d 09 09 09 09 20 | 20 20 20 73 63 61 6e 20 |H)..... |   scan |
|00002420| 3d 20 72 65 67 6e 65 78 | 74 28 73 63 61 6e 29 3b |= regnex|t(scan);|
|00002430| 0d 09 09 09 20 20 20 20 | 7d 0d 09 09 09 20 20 20 |....    |}....   |
|00002440| 20 65 6c 73 65 09 2f 2a | 20 73 69 6e 67 6c 65 20 | else./*| single |
|00002450| 62 72 61 6e 63 68 20 69 | 73 20 6f 6b 20 2a 2f 0d |branch i|s ok */.|
|00002460| 09 09 09 09 73 63 61 6e | 20 3d 20 4e 45 58 54 4f |....scan| = NEXTO|
|00002470| 50 45 52 28 73 63 61 6e | 29 3b 0d 09 09 09 7d 0d |PER(scan|);....}.|
|00002480| 09 09 09 69 66 20 28 4f | 50 28 73 63 61 6e 29 20 |...if (O|P(scan) |
|00002490| 3d 3d 20 45 58 41 43 54 | 4c 59 29 20 7b 0d 09 09 |== EXACT|LY) {...|
|000024a0| 09 20 20 20 20 63 68 61 | 72 20 2a 74 3b 0d 0d 09 |.    cha|r *t;...|
|000024b0| 09 09 20 20 20 20 66 69 | 72 73 74 20 3d 20 73 63 |..    fi|rst = sc|
|000024c0| 61 6e 3b 0d 09 09 09 20 | 20 20 20 77 68 69 6c 65 |an;.... |   while|
|000024d0| 20 28 4f 50 28 74 20 3d | 20 72 65 67 6e 65 78 74 | (OP(t =| regnext|
|000024e0| 28 73 63 61 6e 29 29 20 | 3d 3d 20 43 4c 4f 53 45 |(scan)) |== CLOSE|
|000024f0| 29 0d 09 09 09 09 73 63 | 61 6e 20 3d 20 74 3b 0d |).....sc|an = t;.|
|00002500| 09 09 09 20 20 20 20 6d | 69 6e 6c 65 6e 20 2b 3d |...    m|inlen +=|
|00002510| 20 2a 4f 50 45 52 41 4e | 44 28 66 69 72 73 74 29 | *OPERAN|D(first)|
|00002520| 3b 0d 09 09 09 20 20 20 | 20 69 66 20 28 63 75 72 |;....   | if (cur|
|00002530| 62 61 63 6b 20 2d 20 62 | 61 63 6b 69 73 68 20 3d |back - b|ackish =|
|00002540| 3d 20 6c 65 6e 29 20 7b | 0d 09 09 09 09 73 74 72 |= len) {|.....str|
|00002550| 5f 6e 63 61 74 28 6c 6f | 6e 67 69 73 68 2c 20 4f |_ncat(lo|ngish, O|
|00002560| 50 45 52 41 4e 44 28 66 | 69 72 73 74 29 2b 31 2c |PERAND(f|irst)+1,|
|00002570| 0d 09 09 09 09 20 20 20 | 20 2a 4f 50 45 52 41 4e |.....   | *OPERAN|
|00002580| 44 28 66 69 72 73 74 29 | 29 3b 0d 09 09 09 09 6c |D(first)|);.....l|
|00002590| 65 6e 20 2b 3d 20 2a 4f | 50 45 52 41 4e 44 28 66 |en += *O|PERAND(f|
|000025a0| 69 72 73 74 29 3b 0d 09 | 09 09 09 63 75 72 62 61 |irst);..|...curba|
|000025b0| 63 6b 20 2b 3d 20 2a 4f | 50 45 52 41 4e 44 28 66 |ck += *O|PERAND(f|
|000025c0| 69 72 73 74 29 3b 0d 09 | 09 09 09 66 69 72 73 74 |irst);..|...first|
|000025d0| 20 3d 20 72 65 67 6e 65 | 78 74 28 73 63 61 6e 29 | = regne|xt(scan)|
|000025e0| 3b 0d 09 09 09 20 20 20 | 20 7d 0d 09 09 09 20 20 |;....   | }....  |
|000025f0| 20 20 65 6c 73 65 20 69 | 66 20 28 2a 4f 50 45 52 |  else i|f (*OPER|
|00002600| 41 4e 44 28 66 69 72 73 | 74 29 20 3e 3d 20 6c 65 |AND(firs|t) >= le|
|00002610| 6e 20 2b 20 28 63 75 72 | 62 61 63 6b 20 3e 3d 20 |n + (cur|back >= |
|00002620| 30 29 29 20 7b 0d 09 09 | 09 09 6c 65 6e 20 3d 20 |0)) {...|..len = |
|00002630| 2a 4f 50 45 52 41 4e 44 | 28 66 69 72 73 74 29 3b |*OPERAND|(first);|
|00002640| 0d 09 09 09 09 73 74 72 | 5f 6e 73 65 74 28 6c 6f |.....str|_nset(lo|
|00002650| 6e 67 69 73 68 2c 20 4f | 50 45 52 41 4e 44 28 66 |ngish, O|PERAND(f|
|00002660| 69 72 73 74 29 2b 31 2c | 6c 65 6e 29 3b 0d 09 09 |irst)+1,|len);...|
|00002670| 09 09 62 61 63 6b 69 73 | 68 20 3d 20 63 75 72 62 |..backis|h = curb|
|00002680| 61 63 6b 3b 0d 09 09 09 | 09 63 75 72 62 61 63 6b |ack;....|.curback|
|00002690| 20 2b 3d 20 6c 65 6e 3b | 0d 09 09 09 09 66 69 72 | += len;|.....fir|
|000026a0| 73 74 20 3d 20 72 65 67 | 6e 65 78 74 28 73 63 61 |st = reg|next(sca|
|000026b0| 6e 29 3b 0d 09 09 09 20 | 20 20 20 7d 0d 09 09 09 |n);.... |   }....|
|000026c0| 20 20 20 20 65 6c 73 65 | 0d 09 09 09 09 63 75 72 |    else|.....cur|
|000026d0| 62 61 63 6b 20 2b 3d 20 | 2a 4f 50 45 52 41 4e 44 |back += |*OPERAND|
|000026e0| 28 66 69 72 73 74 29 3b | 0d 09 09 09 7d 0d 09 09 |(first);|....}...|
|000026f0| 09 65 6c 73 65 20 69 66 | 20 28 69 6e 64 65 78 28 |.else if| (index(|
|00002700| 76 61 72 69 65 73 2c 4f | 50 28 73 63 61 6e 29 29 |varies,O|P(scan))|
|00002710| 29 20 7b 0d 09 09 09 20 | 20 20 20 63 75 72 62 61 |) {.... |   curba|
|00002720| 63 6b 20 3d 20 2d 33 30 | 30 30 30 3b 0d 09 09 09 |ck = -30|000;....|
|00002730| 20 20 20 20 6c 65 6e 20 | 3d 20 30 3b 0d 09 09 09 |    len |= 0;....|
|00002740| 20 20 20 20 69 66 20 28 | 6c 6f 6e 67 69 73 68 2d |    if (|longish-|
|00002750| 3e 73 74 72 5f 63 75 72 | 20 3e 20 6c 6f 6e 67 65 |>str_cur| > longe|
|00002760| 73 74 2d 3e 73 74 72 5f | 63 75 72 29 20 7b 0d 09 |st->str_|cur) {..|
|00002770| 09 09 09 73 74 72 5f 73 | 73 65 74 28 6c 6f 6e 67 |...str_s|set(long|
|00002780| 65 73 74 2c 6c 6f 6e 67 | 69 73 68 29 3b 0d 09 09 |est,long|ish);...|
|00002790| 09 09 62 61 63 6b 65 73 | 74 20 3d 20 62 61 63 6b |..backes|t = back|
|000027a0| 69 73 68 3b 0d 09 09 09 | 20 20 20 20 7d 0d 09 09 |ish;....|    }...|
|000027b0| 09 20 20 20 20 73 74 72 | 5f 6e 73 65 74 28 6c 6f |.    str|_nset(lo|
|000027c0| 6e 67 69 73 68 2c 22 22 | 2c 30 29 3b 0d 09 09 09 |ngish,""|,0);....|
|000027d0| 20 20 20 20 69 66 20 28 | 4f 50 28 73 63 61 6e 29 |    if (|OP(scan)|
|000027e0| 20 3d 3d 20 50 4c 55 53 | 20 26 26 0d 09 09 09 20 | == PLUS| &&.... |
|000027f0| 20 20 20 20 20 69 6e 64 | 65 78 28 73 69 6d 70 6c |     ind|ex(simpl|
|00002800| 65 2c 4f 50 28 4e 45 58 | 54 4f 50 45 52 28 73 63 |e,OP(NEX|TOPER(sc|
|00002810| 61 6e 29 29 29 29 0d 09 | 09 09 09 6d 69 6e 6c 65 |an))))..|...minle|
|00002820| 6e 2b 2b 3b 0d 09 09 09 | 20 20 20 20 65 6c 73 65 |n++;....|    else|
|00002830| 20 69 66 20 28 4f 50 28 | 73 63 61 6e 29 20 3d 3d | if (OP(|scan) ==|
|00002840| 20 43 55 52 4c 59 20 26 | 26 0d 09 09 09 20 20 20 | CURLY &|&....   |
|00002850| 20 20 20 69 6e 64 65 78 | 28 73 69 6d 70 6c 65 2c |   index|(simple,|
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|000028c0| 20 20 20 63 75 72 62 61 | 63 6b 2b 2b 3b 0d 09 09 |   curba|ck++;...|
|000028d0| 09 20 20 20 20 6d 69 6e | 6c 65 6e 2b 2b 3b 0d 09 |.    min|len++;..|
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|00002950| 63 6b 69 73 68 3b 0d 09 | 09 09 20 20 20 20 7d 0d |ckish;..|..    }.|
|00002960| 09 09 09 20 20 20 20 73 | 74 72 5f 6e 73 65 74 28 |...    s|tr_nset(|
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|000029a0| 0d 0d 09 09 2f 2a 20 50 | 72 65 66 65 72 20 65 61 |..../* P|refer ea|
|000029b0| 72 6c 69 65 72 20 6f 6e | 20 74 69 65 2c 20 75 6e |rlier on| tie, un|
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|00002a00| 69 72 73 74 29 20 3d 3d | 20 45 4f 4c 29 20 3e 20 |irst) ==| EOL) > |
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|00002a50| 73 74 20 3d 20 62 61 63 | 6b 69 73 68 3b 0d 09 09 |st = bac|kish;...|
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|00002a80| 22 22 2c 30 29 3b 0d 09 | 09 69 66 20 28 6c 6f 6e |"",0);..|.if (lon|
|00002a90| 67 65 73 74 2d 3e 73 74 | 72 5f 63 75 72 0d 09 09 |gest->st|r_cur...|
|00002aa0| 20 20 20 20 26 26 0d 09 | 09 20 20 20 20 28 21 72 |    &&..|.    (!r|
|00002ab0| 2d 3e 72 65 67 73 74 61 | 72 74 0d 09 09 20 20 20 |->regsta|rt...   |
|00002ac0| 20 20 7c 7c 0d 09 09 20 | 20 20 20 20 21 66 62 6d |  ||... |    !fbm|
|00002ad0| 69 6e 73 74 72 28 28 75 | 6e 73 69 67 6e 65 64 20 |instr((u|nsigned |
|00002ae0| 63 68 61 72 2a 29 20 72 | 2d 3e 72 65 67 73 74 61 |char*) r|->regsta|
|00002af0| 72 74 2d 3e 73 74 72 5f | 70 74 72 2c 0d 09 09 09 |rt->str_|ptr,....|
|00002b00| 20 20 28 75 6e 73 69 67 | 6e 65 64 20 63 68 61 72 |  (unsig|ned char|
|00002b10| 20 2a 29 20 72 2d 3e 72 | 65 67 73 74 61 72 74 2d | *) r->r|egstart-|
|00002b20| 3e 73 74 72 5f 70 74 72 | 0d 09 09 09 20 20 20 20 |>str_ptr|....    |
|00002b30| 2b 20 72 2d 3e 72 65 67 | 73 74 61 72 74 2d 3e 73 |+ r->reg|start->s|
|00002b40| 74 72 5f 63 75 72 2c 0d | 09 09 09 20 20 6c 6f 6e |tr_cur,.|...  lon|
|00002b50| 67 65 73 74 29 0d 09 09 | 20 20 20 20 29 0d 09 09 |gest)...|    )...|
|00002b60| 20 20 20 29 0d 09 09 7b | 0d 09 09 09 72 2d 3e 72 |   )...{|....r->r|
|00002b70| 65 67 6d 75 73 74 20 3d | 20 6c 6f 6e 67 65 73 74 |egmust =| longest|
|00002b80| 3b 0d 09 09 09 69 66 20 | 28 62 61 63 6b 65 73 74 |;....if |(backest|
|00002b90| 20 3c 20 30 29 0d 09 09 | 09 09 62 61 63 6b 65 73 | < 0)...|..backes|
|00002ba0| 74 20 3d 20 2d 31 3b 0d | 09 09 09 72 2d 3e 72 65 |t = -1;.|...r->re|
|00002bb0| 67 62 61 63 6b 20 3d 20 | 62 61 63 6b 65 73 74 3b |gback = |backest;|
|00002bc0| 0d 09 09 09 69 66 20 28 | 6c 6f 6e 67 65 73 74 2d |....if (|longest-|
|00002bd0| 3e 73 74 72 5f 63 75 72 | 0d 09 09 09 20 20 3e 20 |>str_cur|....  > |
|00002be0| 21 28 73 61 77 73 74 75 | 64 79 20 7c 7c 20 66 6f |!(sawstu|dy || fo|
|00002bf0| 6c 64 20 7c 7c 20 4f 50 | 28 66 69 72 73 74 29 20 |ld || OP|(first) |
|00002c00| 3d 3d 20 45 4f 4c 29 20 | 29 0d 09 09 09 09 66 62 |== EOL) |).....fb|
|00002c10| 6d 63 6f 6d 70 69 6c 65 | 28 72 2d 3e 72 65 67 6d |mcompile|(r->regm|
|00002c20| 75 73 74 2c 66 6f 6c 64 | 29 3b 0d 09 09 09 72 2d |ust,fold|);....r-|
|00002c30| 3e 72 65 67 6d 75 73 74 | 2d 3e 73 74 72 5f 75 2e |>regmust|->str_u.|
|00002c40| 73 74 72 5f 75 73 65 66 | 75 6c 20 3d 20 31 30 30 |str_usef|ul = 100|
|00002c50| 3b 0d 09 09 09 69 66 20 | 28 4f 50 28 66 69 72 73 |;....if |(OP(firs|
|00002c60| 74 29 20 3d 3d 20 45 4f | 4c 20 26 26 20 6c 6f 6e |t) == EO|L && lon|
|00002c70| 67 69 73 68 2d 3e 73 74 | 72 5f 63 75 72 29 0d 09 |gish->st|r_cur)..|
|00002c80| 09 09 20 20 20 20 72 2d | 3e 72 65 67 6d 75 73 74 |..    r-|>regmust|
|00002c90| 2d 3e 73 74 72 5f 70 6f | 6b 20 7c 3d 20 53 50 5f |->str_po|k |= SP_|
|00002ca0| 54 41 49 4c 3b 0d 09 09 | 7d 0d 09 09 65 6c 73 65 |TAIL;...|}...else|
|00002cb0| 20 7b 0d 09 09 09 73 74 | 72 5f 66 72 65 65 28 6c | {....st|r_free(l|
|00002cc0| 6f 6e 67 65 73 74 29 3b | 0d 09 09 09 6c 6f 6e 67 |ongest);|....long|
|00002cd0| 65 73 74 20 3d 20 4e 75 | 6c 6c 73 74 72 3b 0d 09 |est = Nu|llstr;..|
|00002ce0| 09 7d 0d 09 09 73 74 72 | 5f 66 72 65 65 28 6c 6f |.}...str|_free(lo|
|00002cf0| 6e 67 69 73 68 29 3b 0d | 09 7d 0d 0d 09 72 2d 3e |ngish);.|.}...r->|
|00002d00| 64 6f 5f 66 6f 6c 64 69 | 6e 67 20 3d 20 66 6f 6c |do_foldi|ng = fol|
|00002d10| 64 3b 0d 09 72 2d 3e 6e | 70 61 72 65 6e 73 20 3d |d;..r->n|parens =|
|00002d20| 20 72 65 67 6e 70 61 72 | 20 2d 20 31 3b 0d 09 72 | regnpar| - 1;..r|
|00002d30| 2d 3e 6d 69 6e 6c 65 6e | 20 3d 20 6d 69 6e 6c 65 |->minlen| = minle|
|00002d40| 6e 3b 0d 09 4e 65 77 7a | 28 31 30 30 32 2c 20 72 |n;..Newz|(1002, r|
|00002d50| 2d 3e 73 74 61 72 74 70 | 2c 20 72 65 67 6e 70 61 |->startp|, regnpa|
|00002d60| 72 2c 20 63 68 61 72 2a | 29 3b 0d 09 4e 65 77 7a |r, char*|);..Newz|
|00002d70| 28 31 30 30 32 2c 20 72 | 2d 3e 65 6e 64 70 2c 20 |(1002, r|->endp, |
|00002d80| 72 65 67 6e 70 61 72 2c | 20 63 68 61 72 2a 29 3b |regnpar,| char*);|
|00002d90| 0d 23 69 66 64 65 66 20 | 44 45 42 55 47 47 49 4e |.#ifdef |DEBUGGIN|
|00002da0| 47 0d 09 69 66 20 28 64 | 65 62 75 67 20 26 20 35 |G..if (d|ebug & 5|
|00002db0| 31 32 29 0d 09 09 72 65 | 67 64 75 6d 70 28 72 29 |12)...re|gdump(r)|
|00002dc0| 3b 0d 23 65 6e 64 69 66 | 0d 09 72 65 74 75 72 6e |;.#endif|..return|
|00002dd0| 28 72 29 3b 0d 7d 0d 0d | 2f 2a 0d 20 2d 20 72 65 |(r);.}..|/*. - re|
|00002de0| 67 20 2d 20 72 65 67 75 | 6c 61 72 20 65 78 70 72 |g - regu|lar expr|
|00002df0| 65 73 73 69 6f 6e 2c 20 | 69 2e 65 2e 20 6d 61 69 |ession, |i.e. mai|
|00002e00| 6e 20 62 6f 64 79 20 6f | 72 20 70 61 72 65 6e 74 |n body o|r parent|
|00002e10| 68 65 73 69 7a 65 64 20 | 74 68 69 6e 67 0d 20 2a |hesized |thing. *|
|00002e20| 0d 20 2a 20 43 61 6c 6c | 65 72 20 6d 75 73 74 20 |. * Call|er must |
|00002e30| 61 62 73 6f 72 62 20 6f | 70 65 6e 69 6e 67 20 70 |absorb o|pening p|
|00002e40| 61 72 65 6e 74 68 65 73 | 69 73 2e 0d 20 2a 0d 20 |arenthes|is.. *. |
|00002e50| 2a 20 43 6f 6d 62 69 6e | 69 6e 67 20 70 61 72 65 |* Combin|ing pare|
|00002e60| 6e 74 68 65 73 69 73 20 | 68 61 6e 64 6c 69 6e 67 |nthesis |handling|
|00002e70| 20 77 69 74 68 20 74 68 | 65 20 62 61 73 65 20 6c | with th|e base l|
|00002e80| 65 76 65 6c 20 6f 66 20 | 72 65 67 75 6c 61 72 20 |evel of |regular |
|00002e90| 65 78 70 72 65 73 73 69 | 6f 6e 0d 20 2a 20 69 73 |expressi|on. * is|
|00002ea0| 20 61 20 74 72 69 66 6c | 65 20 66 6f 72 63 65 64 | a trifl|e forced|
|00002eb0| 2c 20 62 75 74 20 74 68 | 65 20 6e 65 65 64 20 74 |, but th|e need t|
|00002ec0| 6f 20 74 69 65 20 74 68 | 65 20 74 61 69 6c 73 20 |o tie th|e tails |
|00002ed0| 6f 66 20 74 68 65 20 62 | 72 61 6e 63 68 65 73 20 |of the b|ranches |
|00002ee0| 74 6f 20 77 68 61 74 0d | 20 2a 20 66 6f 6c 6c 6f |to what.| * follo|
|00002ef0| 77 73 20 6d 61 6b 65 73 | 20 69 74 20 68 61 72 64 |ws makes| it hard|
|00002f00| 20 74 6f 20 61 76 6f 69 | 64 2e 0d 20 2a 2f 0d 73 | to avoi|d.. */.s|
|00002f10| 74 61 74 69 63 20 63 68 | 61 72 20 2a 0d 72 65 67 |tatic ch|ar *.reg|
|00002f20| 28 70 61 72 65 6e 2c 20 | 66 6c 61 67 70 29 0d 69 |(paren, |flagp).i|
|00002f30| 6e 74 20 70 61 72 65 6e | 3b 09 09 09 2f 2a 20 50 |nt paren|;.../* P|
|00002f40| 61 72 65 6e 74 68 65 73 | 69 7a 65 64 3f 20 2a 2f |arenthes|ized? */|
|00002f50| 0d 69 6e 74 20 2a 66 6c | 61 67 70 3b 0d 7b 0d 09 |.int *fl|agp;.{..|
|00002f60| 72 65 67 69 73 74 65 72 | 20 63 68 61 72 20 2a 72 |register| char *r|
|00002f70| 65 74 3b 0d 09 72 65 67 | 69 73 74 65 72 20 63 68 |et;..reg|ister ch|
|00002f80| 61 72 20 2a 62 72 3b 0d | 09 72 65 67 69 73 74 65 |ar *br;.|.registe|
|00002f90| 72 20 63 68 61 72 20 2a | 65 6e 64 65 72 3b 0d 09 |r char *|ender;..|
|00002fa0| 72 65 67 69 73 74 65 72 | 20 69 6e 74 20 70 61 72 |register| int par|
|00002fb0| 6e 6f 3b 0d 09 69 6e 74 | 20 66 6c 61 67 73 3b 0d |no;..int| flags;.|
|00002fc0| 0d 09 2a 66 6c 61 67 70 | 20 3d 20 48 41 53 57 49 |..*flagp| = HASWI|
|00002fd0| 44 54 48 3b 09 2f 2a 20 | 54 65 6e 74 61 74 69 76 |DTH;./* |Tentativ|
|00002fe0| 65 6c 79 2e 20 2a 2f 0d | 0d 09 2f 2a 20 4d 61 6b |ely. */.|../* Mak|
|00002ff0| 65 20 61 6e 20 4f 50 45 | 4e 20 6e 6f 64 65 2c 20 |e an OPE|N node, |
|00003000| 69 66 20 70 61 72 65 6e | 74 68 65 73 69 7a 65 64 |if paren|thesized|
|00003010| 2e 20 2a 2f 0d 09 69 66 | 20 28 70 61 72 65 6e 29 |. */..if| (paren)|
|00003020| 20 7b 0d 09 09 70 61 72 | 6e 6f 20 3d 20 72 65 67 | {...par|no = reg|
|00003030| 6e 70 61 72 3b 0d 09 09 | 72 65 67 6e 70 61 72 2b |npar;...|regnpar+|
|00003040| 2b 3b 0d 09 09 72 65 74 | 20 3d 20 72 65 67 61 6e |+;...ret| = regan|
|00003050| 6f 64 65 28 4f 50 45 4e | 2c 20 70 61 72 6e 6f 29 |ode(OPEN|, parno)|
|00003060| 3b 0d 09 7d 20 65 6c 73 | 65 0d 09 09 72 65 74 20 |;..} els|e...ret |
|00003070| 3d 20 4e 55 4c 4c 3b 0d | 0d 09 2f 2a 20 50 69 63 |= NULL;.|../* Pic|
|00003080| 6b 20 75 70 20 74 68 65 | 20 62 72 61 6e 63 68 65 |k up the| branche|
|00003090| 73 2c 20 6c 69 6e 6b 69 | 6e 67 20 74 68 65 6d 20 |s, linki|ng them |
|000030a0| 74 6f 67 65 74 68 65 72 | 2e 20 2a 2f 0d 09 62 72 |together|. */..br|
|000030b0| 20 3d 20 72 65 67 62 72 | 61 6e 63 68 28 26 66 6c | = regbr|anch(&fl|
|000030c0| 61 67 73 29 3b 0d 09 69 | 66 20 28 62 72 20 3d 3d |ags);..i|f (br ==|
|000030d0| 20 4e 55 4c 4c 29 0d 09 | 09 72 65 74 75 72 6e 28 | NULL)..|.return(|
|000030e0| 4e 55 4c 4c 29 3b 0d 09 | 69 66 20 28 72 65 74 20 |NULL);..|if (ret |
|000030f0| 21 3d 20 4e 55 4c 4c 29 | 0d 09 09 72 65 67 74 61 |!= NULL)|...regta|
|00003100| 69 6c 28 72 65 74 2c 20 | 62 72 29 3b 09 2f 2a 20 |il(ret, |br);./* |
|00003110| 4f 50 45 4e 20 2d 3e 20 | 66 69 72 73 74 2e 20 2a |OPEN -> |first. *|
|00003120| 2f 0d 09 65 6c 73 65 0d | 09 09 72 65 74 20 3d 20 |/..else.|..ret = |
|00003130| 62 72 3b 0d 09 69 66 20 | 28 21 28 66 6c 61 67 73 |br;..if |(!(flags|
|00003140| 26 48 41 53 57 49 44 54 | 48 29 29 0d 09 09 2a 66 |&HASWIDT|H))...*f|
|00003150| 6c 61 67 70 20 26 3d 20 | 7e 48 41 53 57 49 44 54 |lagp &= |~HASWIDT|
|00003160| 48 3b 0d 09 2a 66 6c 61 | 67 70 20 7c 3d 20 66 6c |H;..*fla|gp |= fl|
|00003170| 61 67 73 26 53 50 53 54 | 41 52 54 3b 0d 09 77 68 |ags&SPST|ART;..wh|
|00003180| 69 6c 65 20 28 2a 72 65 | 67 70 61 72 73 65 20 3d |ile (*re|gparse =|
|00003190| 3d 20 27 7c 27 29 20 7b | 0d 09 09 72 65 67 70 61 |= '|') {|...regpa|
|000031a0| 72 73 65 2b 2b 3b 0d 09 | 09 62 72 20 3d 20 72 65 |rse++;..|.br = re|
|000031b0| 67 62 72 61 6e 63 68 28 | 26 66 6c 61 67 73 29 3b |gbranch(|&flags);|
|000031c0| 0d 09 09 69 66 20 28 62 | 72 20 3d 3d 20 4e 55 4c |...if (b|r == NUL|
|000031d0| 4c 29 0d 09 09 09 72 65 | 74 75 72 6e 28 4e 55 4c |L)....re|turn(NUL|
|000031e0| 4c 29 3b 0d 09 09 72 65 | 67 74 61 69 6c 28 72 65 |L);...re|gtail(re|
|000031f0| 74 2c 20 62 72 29 3b 09 | 2f 2a 20 42 52 41 4e 43 |t, br);.|/* BRANC|
|00003200| 48 20 2d 3e 20 42 52 41 | 4e 43 48 2e 20 2a 2f 0d |H -> BRA|NCH. */.|
|00003210| 09 09 69 66 20 28 21 28 | 66 6c 61 67 73 26 48 41 |..if (!(|flags&HA|
|00003220| 53 57 49 44 54 48 29 29 | 0d 09 09 09 2a 66 6c 61 |SWIDTH))|....*fla|
|00003230| 67 70 20 26 3d 20 7e 48 | 41 53 57 49 44 54 48 3b |gp &= ~H|ASWIDTH;|
|00003240| 0d 09 09 2a 66 6c 61 67 | 70 20 7c 3d 20 66 6c 61 |...*flag|p |= fla|
|00003250| 67 73 26 53 50 53 54 41 | 52 54 3b 0d 09 7d 0d 0d |gs&SPSTA|RT;..}..|
|00003260| 09 2f 2a 20 4d 61 6b 65 | 20 61 20 63 6c 6f 73 69 |./* Make| a closi|
|00003270| 6e 67 20 6e 6f 64 65 2c | 20 61 6e 64 20 68 6f 6f |ng node,| and hoo|
|00003280| 6b 20 69 74 20 6f 6e 20 | 74 68 65 20 65 6e 64 2e |k it on |the end.|
|00003290| 20 2a 2f 0d 09 69 66 20 | 28 70 61 72 65 6e 29 0d | */..if |(paren).|
|000032a0| 09 20 20 20 20 65 6e 64 | 65 72 20 3d 20 72 65 67 |.    end|er = reg|
|000032b0| 61 6e 6f 64 65 28 43 4c | 4f 53 45 2c 20 70 61 72 |anode(CL|OSE, par|
|000032c0| 6e 6f 29 3b 0d 09 65 6c | 73 65 0d 09 20 20 20 20 |no);..el|se..    |
|000032d0| 65 6e 64 65 72 20 3d 20 | 72 65 67 6e 6f 64 65 28 |ender = |regnode(|
|000032e0| 45 4e 44 29 3b 0d 09 72 | 65 67 74 61 69 6c 28 72 |END);..r|egtail(r|
|000032f0| 65 74 2c 20 65 6e 64 65 | 72 29 3b 0d 0d 09 2f 2a |et, ende|r);.../*|
|00003300| 20 48 6f 6f 6b 20 74 68 | 65 20 74 61 69 6c 73 20 | Hook th|e tails |
|00003310| 6f 66 20 74 68 65 20 62 | 72 61 6e 63 68 65 73 20 |of the b|ranches |
|00003320| 74 6f 20 74 68 65 20 63 | 6c 6f 73 69 6e 67 20 6e |to the c|losing n|
|00003330| 6f 64 65 2e 20 2a 2f 0d | 09 66 6f 72 20 28 62 72 |ode. */.|.for (br|
|00003340| 20 3d 20 72 65 74 3b 20 | 62 72 20 21 3d 20 4e 55 | = ret; |br != NU|
|00003350| 4c 4c 3b 20 62 72 20 3d | 20 72 65 67 6e 65 78 74 |LL; br =| regnext|
|00003360| 28 62 72 29 29 0d 09 09 | 72 65 67 6f 70 74 61 69 |(br))...|regoptai|
|00003370| 6c 28 62 72 2c 20 65 6e | 64 65 72 29 3b 0d 0d 09 |l(br, en|der);...|
|00003380| 2f 2a 20 43 68 65 63 6b | 20 66 6f 72 20 70 72 6f |/* Check| for pro|
|00003390| 70 65 72 20 74 65 72 6d | 69 6e 61 74 69 6f 6e 2e |per term|ination.|
|000033a0| 20 2a 2f 0d 09 69 66 20 | 28 70 61 72 65 6e 20 26 | */..if |(paren &|
|000033b0| 26 20 2a 72 65 67 70 61 | 72 73 65 2b 2b 20 21 3d |& *regpa|rse++ !=|
|000033c0| 20 27 29 27 29 20 7b 0d | 09 09 46 41 49 4c 28 22 | ')') {.|..FAIL("|
|000033d0| 75 6e 6d 61 74 63 68 65 | 64 20 28 29 20 69 6e 20 |unmatche|d () in |
|000033e0| 72 65 67 65 78 70 22 29 | 3b 0d 09 7d 20 65 6c 73 |regexp")|;..} els|
|000033f0| 65 20 69 66 20 28 21 70 | 61 72 65 6e 20 26 26 20 |e if (!p|aren && |
|00003400| 72 65 67 70 61 72 73 65 | 20 3c 20 72 65 67 78 65 |regparse| < regxe|
|00003410| 6e 64 29 20 7b 0d 09 09 | 69 66 20 28 2a 72 65 67 |nd) {...|if (*reg|
|00003420| 70 61 72 73 65 20 3d 3d | 20 27 29 27 29 20 7b 0d |parse ==| ')') {.|
|00003430| 09 09 09 46 41 49 4c 28 | 22 75 6e 6d 61 74 63 68 |...FAIL(|"unmatch|
|00003440| 65 64 20 28 29 20 69 6e | 20 72 65 67 65 78 70 22 |ed () in| regexp"|
|00003450| 29 3b 0d 09 09 7d 20 65 | 6c 73 65 0d 09 09 09 46 |);...} e|lse....F|
|00003460| 41 49 4c 28 22 6a 75 6e | 6b 20 6f 6e 20 65 6e 64 |AIL("jun|k on end|
|00003470| 20 6f 66 20 72 65 67 65 | 78 70 22 29 3b 09 2f 2a | of rege|xp");./*|
|00003480| 20 22 43 61 6e 27 74 20 | 68 61 70 70 65 6e 22 2e | "Can't |happen".|
|00003490| 20 2a 2f 0d 09 09 2f 2a | 20 4e 4f 54 52 45 41 43 | */.../*| NOTREAC|
|000034a0| 48 45 44 20 2a 2f 0d 09 | 7d 0d 0d 09 72 65 74 75 |HED */..|}...retu|
|000034b0| 72 6e 28 72 65 74 29 3b | 0d 7d 0d 0d 2f 2a 0d 20 |rn(ret);|.}../*. |
|000034c0| 2d 20 72 65 67 62 72 61 | 6e 63 68 20 2d 20 6f 6e |- regbra|nch - on|
|000034d0| 65 20 61 6c 74 65 72 6e | 61 74 69 76 65 20 6f 66 |e altern|ative of|
|000034e0| 20 61 6e 20 7c 20 6f 70 | 65 72 61 74 6f 72 0d 20 | an | op|erator. |
|000034f0| 2a 0d 20 2a 20 49 6d 70 | 6c 65 6d 65 6e 74 73 20 |*. * Imp|lements |
|00003500| 74 68 65 20 63 6f 6e 63 | 61 74 65 6e 61 74 69 6f |the conc|atenatio|
|00003510| 6e 20 6f 70 65 72 61 74 | 6f 72 2e 0d 20 2a 2f 0d |n operat|or.. */.|
|00003520| 73 74 61 74 69 63 20 63 | 68 61 72 20 2a 0d 72 65 |static c|har *.re|
|00003530| 67 62 72 61 6e 63 68 28 | 66 6c 61 67 70 29 0d 69 |gbranch(|flagp).i|
|00003540| 6e 74 20 2a 66 6c 61 67 | 70 3b 0d 7b 0d 09 72 65 |nt *flag|p;.{..re|
|00003550| 67 69 73 74 65 72 20 63 | 68 61 72 20 2a 72 65 74 |gister c|har *ret|
|00003560| 3b 0d 09 72 65 67 69 73 | 74 65 72 20 63 68 61 72 |;..regis|ter char|
|00003570| 20 2a 63 68 61 69 6e 3b | 0d 09 72 65 67 69 73 74 | *chain;|..regist|
|00003580| 65 72 20 63 68 61 72 20 | 2a 6c 61 74 65 73 74 3b |er char |*latest;|
|00003590| 0d 09 69 6e 74 20 66 6c | 61 67 73 3b 0d 0d 09 2a |..int fl|ags;...*|
|000035a0| 66 6c 61 67 70 20 3d 20 | 57 4f 52 53 54 3b 09 09 |flagp = |WORST;..|
|000035b0| 2f 2a 20 54 65 6e 74 61 | 74 69 76 65 6c 79 2e 20 |/* Tenta|tively. |
|000035c0| 2a 2f 0d 0d 09 72 65 74 | 20 3d 20 72 65 67 6e 6f |*/...ret| = regno|
|000035d0| 64 65 28 42 52 41 4e 43 | 48 29 3b 0d 09 63 68 61 |de(BRANC|H);..cha|
|000035e0| 69 6e 20 3d 20 4e 55 4c | 4c 3b 0d 09 77 68 69 6c |in = NUL|L;..whil|
|000035f0| 65 20 28 72 65 67 70 61 | 72 73 65 20 3c 20 72 65 |e (regpa|rse < re|
|00003600| 67 78 65 6e 64 20 26 26 | 20 2a 72 65 67 70 61 72 |gxend &&| *regpar|
|00003610| 73 65 20 21 3d 20 27 7c | 27 20 26 26 20 2a 72 65 |se != '||' && *re|
|00003620| 67 70 61 72 73 65 20 21 | 3d 20 27 29 27 29 20 7b |gparse !|= ')') {|
|00003630| 0d 09 09 6c 61 74 65 73 | 74 20 3d 20 72 65 67 70 |...lates|t = regp|
|00003640| 69 65 63 65 28 26 66 6c | 61 67 73 29 3b 0d 09 09 |iece(&fl|ags);...|
|00003650| 69 66 20 28 6c 61 74 65 | 73 74 20 3d 3d 20 4e 55 |if (late|st == NU|
|00003660| 4c 4c 29 0d 09 09 09 72 | 65 74 75 72 6e 28 4e 55 |LL)....r|eturn(NU|
|00003670| 4c 4c 29 3b 0d 09 09 2a | 66 6c 61 67 70 20 7c 3d |LL);...*|flagp |=|
|00003680| 20 66 6c 61 67 73 26 48 | 41 53 57 49 44 54 48 3b | flags&H|ASWIDTH;|
|00003690| 0d 09 09 69 66 20 28 63 | 68 61 69 6e 20 3d 3d 20 |...if (c|hain == |
|000036a0| 4e 55 4c 4c 29 09 2f 2a | 20 46 69 72 73 74 20 70 |NULL)./*| First p|
|000036b0| 69 65 63 65 2e 20 2a 2f | 0d 09 09 09 2a 66 6c 61 |iece. */|....*fla|
|000036c0| 67 70 20 7c 3d 20 66 6c | 61 67 73 26 53 50 53 54 |gp |= fl|ags&SPST|
|000036d0| 41 52 54 3b 0d 09 09 65 | 6c 73 65 0d 09 09 09 72 |ART;...e|lse....r|
|000036e0| 65 67 74 61 69 6c 28 63 | 68 61 69 6e 2c 20 6c 61 |egtail(c|hain, la|
|000036f0| 74 65 73 74 29 3b 0d 09 | 09 63 68 61 69 6e 20 3d |test);..|.chain =|
|00003700| 20 6c 61 74 65 73 74 3b | 0d 09 7d 0d 09 69 66 20 | latest;|..}..if |
|00003710| 28 63 68 61 69 6e 20 3d | 3d 20 4e 55 4c 4c 29 09 |(chain =|= NULL).|
|00003720| 2f 2a 20 4c 6f 6f 70 20 | 72 61 6e 20 7a 65 72 6f |/* Loop |ran zero|
|00003730| 20 74 69 6d 65 73 2e 20 | 2a 2f 0d 09 09 28 76 6f | times. |*/...(vo|
|00003740| 69 64 29 20 72 65 67 6e | 6f 64 65 28 4e 4f 54 48 |id) regn|ode(NOTH|
|00003750| 49 4e 47 29 3b 0d 0d 09 | 72 65 74 75 72 6e 28 72 |ING);...|return(r|
|00003760| 65 74 29 3b 0d 7d 0d 0d | 2f 2a 0d 20 2d 20 72 65 |et);.}..|/*. - re|
|00003770| 67 70 69 65 63 65 20 2d | 20 73 6f 6d 65 74 68 69 |gpiece -| somethi|
|00003780| 6e 67 20 66 6f 6c 6c 6f | 77 65 64 20 62 79 20 70 |ng follo|wed by p|
|00003790| 6f 73 73 69 62 6c 65 20 | 5b 2a 2b 3f 5d 0d 20 2a |ossible |[*+?]. *|
|000037a0| 0d 20 2a 20 4e 6f 74 65 | 20 74 68 61 74 20 74 68 |. * Note| that th|
|000037b0| 65 20 62 72 61 6e 63 68 | 69 6e 67 20 63 6f 64 65 |e branch|ing code|
|000037c0| 20 73 65 71 75 65 6e 63 | 65 73 20 75 73 65 64 20 | sequenc|es used |
|000037d0| 66 6f 72 20 3f 20 61 6e | 64 20 74 68 65 20 67 65 |for ? an|d the ge|
|000037e0| 6e 65 72 61 6c 20 63 61 | 73 65 73 0d 20 2a 20 6f |neral ca|ses. * o|
|000037f0| 66 20 2a 20 61 6e 64 20 | 2b 20 61 72 65 20 73 6f |f * and |+ are so|
|00003800| 6d 65 77 68 61 74 20 6f | 70 74 69 6d 69 7a 65 64 |mewhat o|ptimized|
|00003810| 3a 20 20 74 68 65 79 20 | 75 73 65 20 74 68 65 20 |:  they |use the |
|00003820| 73 61 6d 65 20 4e 4f 54 | 48 49 4e 47 20 6e 6f 64 |same NOT|HING nod|
|00003830| 65 20 61 73 0d 20 2a 20 | 62 6f 74 68 20 74 68 65 |e as. * |both the|
|00003840| 20 65 6e 64 6d 61 72 6b | 65 72 20 66 6f 72 20 74 | endmark|er for t|
|00003850| 68 65 69 72 20 62 72 61 | 6e 63 68 20 6c 69 73 74 |heir bra|nch list|
|00003860| 20 61 6e 64 20 74 68 65 | 20 62 6f 64 79 20 6f 66 | and the| body of|
|00003870| 20 74 68 65 20 6c 61 73 | 74 20 62 72 61 6e 63 68 | the las|t branch|
|00003880| 2e 0d 20 2a 20 49 74 20 | 6d 69 67 68 74 20 73 65 |.. * It |might se|
|00003890| 65 6d 20 74 68 61 74 20 | 74 68 69 73 20 6e 6f 64 |em that |this nod|
|000038a0| 65 20 63 6f 75 6c 64 20 | 62 65 20 64 69 73 70 65 |e could |be dispe|
|000038b0| 6e 73 65 64 20 77 69 74 | 68 20 65 6e 74 69 72 65 |nsed wit|h entire|
|000038c0| 6c 79 2c 20 62 75 74 20 | 74 68 65 0d 20 2a 20 65 |ly, but |the. * e|
|000038d0| 6e 64 6d 61 72 6b 65 72 | 20 72 6f 6c 65 20 69 73 |ndmarker| role is|
|000038e0| 20 6e 6f 74 20 72 65 64 | 75 6e 64 61 6e 74 2e 0d | not red|undant..|
|000038f0| 20 2a 2f 0d 73 74 61 74 | 69 63 20 63 68 61 72 20 | */.stat|ic char |
|00003900| 2a 0d 72 65 67 70 69 65 | 63 65 28 66 6c 61 67 70 |*.regpie|ce(flagp|
|00003910| 29 0d 69 6e 74 20 2a 66 | 6c 61 67 70 3b 0d 7b 0d |).int *f|lagp;.{.|
|00003920| 09 72 65 67 69 73 74 65 | 72 20 63 68 61 72 20 2a |.registe|r char *|
|00003930| 72 65 74 3b 0d 09 72 65 | 67 69 73 74 65 72 20 63 |ret;..re|gister c|
|00003940| 68 61 72 20 6f 70 3b 0d | 09 72 65 67 69 73 74 65 |har op;.|.registe|
|00003950| 72 20 63 68 61 72 20 2a | 6e 65 78 74 3b 0d 09 69 |r char *|next;..i|
|00003960| 6e 74 20 66 6c 61 67 73 | 3b 0d 09 63 68 61 72 20 |nt flags|;..char |
|00003970| 2a 6f 72 69 67 70 61 72 | 73 65 20 3d 20 72 65 67 |*origpar|se = reg|
|00003980| 70 61 72 73 65 3b 0d 09 | 69 6e 74 20 6f 72 69 67 |parse;..|int orig|
|00003990| 6e 70 61 72 20 3d 20 72 | 65 67 6e 70 61 72 3b 0d |npar = r|egnpar;.|
|000039a0| 09 63 68 61 72 20 2a 6d | 61 78 3b 0d 09 69 6e 74 |.char *m|ax;..int|
|000039b0| 20 69 74 65 72 3b 0d 09 | 63 68 61 72 20 63 68 3b | iter;..|char ch;|
|000039c0| 0d 0d 09 72 65 74 20 3d | 20 72 65 67 61 74 6f 6d |...ret =| regatom|
|000039d0| 28 26 66 6c 61 67 73 29 | 3b 0d 09 69 66 20 28 72 |(&flags)|;..if (r|
|000039e0| 65 74 20 3d 3d 20 4e 55 | 4c 4c 29 0d 09 09 72 65 |et == NU|LL)...re|
|000039f0| 74 75 72 6e 28 4e 55 4c | 4c 29 3b 0d 0d 09 6f 70 |turn(NUL|L);...op|
|00003a00| 20 3d 20 2a 72 65 67 70 | 61 72 73 65 3b 0d 0d 09 | = *regp|arse;...|
|00003a10| 2f 2a 20 48 65 72 65 27 | 73 20 61 20 74 6f 74 61 |/* Here'|s a tota|
|00003a20| 6c 20 6b 6c 75 64 67 65 | 3a 20 69 66 20 61 66 74 |l kludge|: if aft|
|00003a30| 65 72 20 74 68 65 20 61 | 74 6f 6d 20 74 68 65 72 |er the a|tom ther|
|00003a40| 65 27 73 20 61 20 7b 5c | 64 2b 2c 3f 5c 64 2a 7d |e's a {\|d+,?\d*}|
|00003a50| 0d 09 20 2a 20 74 68 65 | 6e 20 77 65 20 64 65 63 |.. * the|n we dec|
|00003a60| 72 65 6d 65 6e 74 20 74 | 68 65 20 66 69 72 73 74 |rement t|he first|
|00003a70| 20 6e 75 6d 62 65 72 20 | 62 79 20 6f 6e 65 20 61 | number |by one a|
|00003a80| 6e 64 20 72 65 73 65 74 | 20 6f 75 72 0d 09 20 2a |nd reset| our.. *|
|00003a90| 20 70 61 72 73 69 6e 67 | 20 62 61 63 6b 20 74 6f | parsing| back to|
|00003aa0| 20 74 68 65 20 62 65 67 | 69 6e 6e 69 6e 67 20 6f | the beg|inning o|
|00003ab0| 66 20 74 68 65 20 73 61 | 6d 65 20 61 74 6f 6d 2e |f the sa|me atom.|
|00003ac0| 20 20 49 66 20 74 68 65 | 20 66 69 72 73 74 20 6e |  If the| first n|
|00003ad0| 75 6d 62 65 72 0d 09 20 | 2a 20 69 73 20 64 6f 77 |umber.. |* is dow|
|00003ae0| 6e 20 74 6f 20 30 2c 20 | 64 65 63 72 65 6d 65 6e |n to 0, |decremen|
|00003af0| 74 20 74 68 65 20 73 65 | 63 6f 6e 64 20 6e 75 6d |t the se|cond num|
|00003b00| 62 65 72 20 69 6e 73 74 | 65 61 64 20 61 6e 64 20 |ber inst|ead and |
|00003b10| 66 61 6b 65 20 75 70 0d | 09 20 2a 20 61 20 3f 20 |fake up.|. * a ? |
|00003b20| 61 66 74 65 72 20 69 74 | 2e 20 20 47 69 76 65 6e |after it|.  Given|
|00003b30| 20 74 68 65 20 77 61 79 | 20 74 68 69 73 20 63 6f | the way| this co|
|00003b40| 6d 70 69 6c 65 72 20 64 | 6f 65 73 6e 27 74 20 6b |mpiler d|oesn't k|
|00003b50| 65 65 70 20 74 72 61 63 | 6b 0d 09 20 2a 20 6f 66 |eep trac|k.. * of|
|00003b60| 20 6f 66 66 73 65 74 73 | 20 6f 6e 20 74 68 65 20 | offsets| on the |
|00003b70| 66 69 72 73 74 20 70 61 | 73 73 2c 20 74 68 69 73 |first pa|ss, this|
|00003b80| 20 69 73 20 74 68 65 20 | 6f 6e 6c 79 20 77 61 79 | is the |only way|
|00003b90| 20 74 6f 20 72 65 70 6c | 69 63 61 74 65 0d 09 20 | to repl|icate.. |
|00003ba0| 2a 20 61 20 70 69 65 63 | 65 20 6f 66 20 63 6f 64 |* a piec|e of cod|
|00003bb0| 65 2e 20 20 53 69 67 68 | 2e 0d 09 20 2a 2f 0d 09 |e.  Sigh|... */..|
|00003bc0| 69 66 20 28 6f 70 20 3d | 3d 20 27 7b 27 20 26 26 |if (op =|= '{' &&|
|00003bd0| 20 72 65 67 63 75 72 6c | 79 28 72 65 67 70 61 72 | regcurl|y(regpar|
|00003be0| 73 65 29 29 20 7b 0d 09 | 20 20 20 20 6e 65 78 74 |se)) {..|    next|
|00003bf0| 20 3d 20 72 65 67 70 61 | 72 73 65 20 2b 20 31 3b | = regpa|rse + 1;|
|00003c00| 0d 09 20 20 20 20 6d 61 | 78 20 3d 20 4e 75 6c 6c |..    ma|x = Null|
|00003c10| 63 68 3b 0d 09 20 20 20 | 20 77 68 69 6c 65 20 28 |ch;..   | while (|
|00003c20| 69 73 44 49 47 49 54 28 | 2a 6e 65 78 74 29 20 7c |isDIGIT(|*next) ||
|00003c30| 7c 20 2a 6e 65 78 74 20 | 3d 3d 20 27 2c 27 29 20 || *next |== ',') |
|00003c40| 7b 0d 09 09 69 66 20 28 | 2a 6e 65 78 74 20 3d 3d |{...if (|*next ==|
|00003c50| 20 27 2c 27 29 20 7b 0d | 09 09 20 20 20 20 69 66 | ',') {.|..    if|
|00003c60| 20 28 6d 61 78 29 0d 09 | 09 09 62 72 65 61 6b 3b | (max)..|..break;|
|00003c70| 0d 09 09 20 20 20 20 65 | 6c 73 65 0d 09 09 09 6d |...    e|lse....m|
|00003c80| 61 78 20 3d 20 6e 65 78 | 74 3b 0d 09 09 7d 0d 09 |ax = nex|t;...}..|
|00003c90| 09 6e 65 78 74 2b 2b 3b | 0d 09 20 20 20 20 7d 0d |.next++;|..    }.|
|00003ca0| 09 20 20 20 20 69 66 20 | 28 2a 6e 65 78 74 20 3d |.    if |(*next =|
|00003cb0| 3d 20 27 7d 27 29 20 7b | 09 09 2f 2a 20 67 6f 74 |= '}') {|../* got|
|00003cc0| 20 6f 6e 65 20 2a 2f 0d | 09 09 69 66 20 28 21 6d | one */.|..if (!m|
|00003cd0| 61 78 29 0d 09 09 20 20 | 20 20 6d 61 78 20 3d 20 |ax)...  |  max = |
|00003ce0| 6e 65 78 74 3b 0d 09 09 | 72 65 67 70 61 72 73 65 |next;...|regparse|
|00003cf0| 2b 2b 3b 0d 09 09 69 74 | 65 72 20 3d 20 61 74 6f |++;...it|er = ato|
|00003d00| 69 28 72 65 67 70 61 72 | 73 65 29 3b 0d 09 09 69 |i(regpar|se);...i|
|00003d10| 66 20 28 66 6c 61 67 73 | 26 53 49 4d 50 4c 45 29 |f (flags|&SIMPLE)|
|00003d20| 20 7b 09 2f 2a 20 77 65 | 20 63 61 6e 20 64 6f 20 | {./* we| can do |
|00003d30| 69 74 20 72 69 67 68 74 | 20 61 66 74 65 72 20 61 |it right| after a|
|00003d40| 6c 6c 20 2a 2f 0d 09 09 | 20 20 20 20 69 6e 74 20 |ll */...|    int |
|00003d50| 74 6d 70 3b 0d 0d 09 09 | 20 20 20 20 72 65 67 69 |tmp;....|    regi|
|00003d60| 6e 73 65 72 74 28 43 55 | 52 4c 59 2c 20 72 65 74 |nsert(CU|RLY, ret|
|00003d70| 29 3b 0d 09 09 20 20 20 | 20 69 66 20 28 69 74 65 |);...   | if (ite|
|00003d80| 72 20 3e 20 30 29 0d 09 | 09 09 2a 66 6c 61 67 70 |r > 0)..|..*flagp|
|00003d90| 20 3d 20 28 57 4f 52 53 | 54 7c 48 41 53 57 49 44 | = (WORS|T|HASWID|
|00003da0| 54 48 29 3b 0d 09 09 20 | 20 20 20 69 66 20 28 2a |TH);... |   if (*|
|00003db0| 6d 61 78 20 3d 3d 20 27 | 2c 27 29 0d 09 09 09 6d |max == '|,')....m|
|00003dc0| 61 78 2b 2b 3b 0d 09 09 | 20 20 20 20 65 6c 73 65 |ax++;...|    else|
|00003dd0| 0d 09 09 09 6d 61 78 20 | 3d 20 72 65 67 70 61 72 |....max |= regpar|
|00003de0| 73 65 3b 0d 09 09 20 20 | 20 20 74 6d 70 20 3d 20 |se;...  |  tmp = |
|00003df0| 61 74 6f 69 28 6d 61 78 | 29 3b 0d 09 09 20 20 20 |atoi(max|);...   |
|00003e00| 20 69 66 20 28 21 74 6d | 70 20 26 26 20 2a 6d 61 | if (!tm|p && *ma|
|00003e10| 78 20 21 3d 20 27 30 27 | 29 0d 09 09 09 74 6d 70 |x != '0'|)....tmp|
|00003e20| 20 3d 20 33 32 37 36 37 | 3b 09 09 2f 2a 20 6d 65 | = 32767|;../* me|
|00003e30| 61 6e 69 6e 67 20 22 69 | 6e 66 69 6e 69 74 79 22 |aning "i|nfinity"|
|00003e40| 20 2a 2f 0d 09 09 20 20 | 20 20 69 66 20 28 74 6d | */...  |  if (tm|
|00003e50| 70 20 26 26 20 74 6d 70 | 20 3c 20 69 74 65 72 29 |p && tmp| < iter)|
|00003e60| 0d 09 09 09 66 61 74 61 | 6c 28 22 43 61 6e 27 74 |....fata|l("Can't|
|00003e70| 20 64 6f 20 7b 6e 2c 6d | 7d 20 77 69 74 68 20 6e | do {n,m|} with n|
|00003e80| 20 3e 20 6d 22 29 3b 0d | 09 09 20 20 20 20 69 66 | > m");.|..    if|
|00003e90| 20 28 72 65 67 63 6f 64 | 65 20 21 3d 20 26 72 65 | (regcod|e != &re|
|00003ea0| 67 64 75 6d 6d 79 29 20 | 7b 0d 23 69 66 64 65 66 |gdummy) |{.#ifdef|
|00003eb0| 20 52 45 47 41 4c 49 47 | 4e 0d 09 09 09 2a 28 75 | REGALIG|N....*(u|
|00003ec0| 6e 73 69 67 6e 65 64 20 | 73 68 6f 72 74 20 2a 29 |nsigned |short *)|
|00003ed0| 28 72 65 74 2b 33 29 20 | 3d 20 69 74 65 72 3b 0d |(ret+3) |= iter;.|
|00003ee0| 09 09 09 2a 28 75 6e 73 | 69 67 6e 65 64 20 73 68 |...*(uns|igned sh|
|00003ef0| 6f 72 74 20 2a 29 28 72 | 65 74 2b 35 29 20 3d 20 |ort *)(r|et+5) = |
|00003f00| 74 6d 70 3b 0d 23 65 6c | 73 65 0d 09 09 09 72 65 |tmp;.#el|se....re|
|00003f10| 74 5b 33 5d 20 3d 20 69 | 74 65 72 20 3e 3e 20 38 |t[3] = i|ter >> 8|
|00003f20| 3b 20 72 65 74 5b 34 5d | 20 3d 20 69 74 65 72 20 |; ret[4]| = iter |
|00003f30| 26 20 30 33 37 37 3b 0d | 09 09 09 72 65 74 5b 35 |& 0377;.|...ret[5|
|00003f40| 5d 20 3d 20 74 6d 70 20 | 20 3e 3e 20 38 3b 20 72 |] = tmp | >> 8; r|
|00003f50| 65 74 5b 36 5d 20 3d 20 | 74 6d 70 20 20 26 20 30 |et[6] = |tmp  & 0|
|00003f60| 33 37 37 3b 0d 23 65 6e | 64 69 66 0d 09 09 20 20 |377;.#en|dif...  |
|00003f70| 20 20 7d 0d 09 09 20 20 | 20 20 72 65 67 70 61 72 |  }...  |  regpar|
|00003f80| 73 65 20 3d 20 6e 65 78 | 74 3b 0d 09 09 20 20 20 |se = nex|t;...   |
|00003f90| 20 67 6f 74 6f 20 6e 65 | 73 74 5f 63 68 65 63 6b | goto ne|st_check|
|00003fa0| 3b 0d 09 09 7d 0d 09 09 | 72 65 67 73 61 77 62 72 |;...}...|regsawbr|
|00003fb0| 61 63 6b 65 74 2b 2b 3b | 09 2f 2a 20 72 65 6d 65 |acket++;|./* reme|
|00003fc0| 6d 62 65 72 20 77 65 20 | 63 6c 6f 62 62 65 72 65 |mber we |clobbere|
|00003fd0| 64 20 65 78 70 20 2a 2f | 0d 09 09 69 66 20 28 69 |d exp */|...if (i|
|00003fe0| 74 65 72 20 3e 20 30 29 | 20 7b 0d 09 09 20 20 20 |ter > 0)| {...   |
|00003ff0| 20 63 68 20 3d 20 2a 6d | 61 78 3b 0d 09 09 20 20 | ch = *m|ax;...  |
|00004000| 20 20 73 70 72 69 6e 74 | 66 28 72 65 67 70 61 72 |  sprint|f(regpar|
|00004010| 73 65 2c 22 25 2e 2a 64 | 22 2c 20 6d 61 78 2d 72 |se,"%.*d|", max-r|
|00004020| 65 67 70 61 72 73 65 2c | 20 69 74 65 72 20 2d 20 |egparse,| iter - |
|00004030| 31 29 3b 0d 09 09 20 20 | 20 20 2a 6d 61 78 20 3d |1);...  |  *max =|
|00004040| 20 63 68 3b 0d 09 09 20 | 20 20 20 69 66 20 28 2a | ch;... |   if (*|
|00004050| 6d 61 78 20 3d 3d 20 27 | 2c 27 20 26 26 20 6d 61 |max == '|,' && ma|
|00004060| 78 5b 31 5d 20 21 3d 20 | 27 7d 27 29 20 7b 0d 09 |x[1] != |'}') {..|
|00004070| 09 09 69 66 20 28 61 74 | 6f 69 28 6d 61 78 2b 31 |..if (at|oi(max+1|
|00004080| 29 20 3c 3d 20 30 29 0d | 09 09 09 20 20 20 20 66 |) <= 0).|...    f|
|00004090| 61 74 61 6c 28 22 43 61 | 6e 27 74 20 64 6f 20 7b |atal("Ca|n't do {|
|000040a0| 6e 2c 6d 7d 20 77 69 74 | 68 20 6e 20 3e 20 6d 22 |n,m} wit|h n > m"|
|000040b0| 29 3b 0d 09 09 09 63 68 | 20 3d 20 2a 6e 65 78 74 |);....ch| = *next|
|000040c0| 3b 0d 09 09 09 73 70 72 | 69 6e 74 66 28 6d 61 78 |;....spr|intf(max|
|000040d0| 2b 31 2c 22 25 2e 2a 64 | 22 2c 20 6e 65 78 74 2d |+1,"%.*d|", next-|
|000040e0| 28 6d 61 78 2b 31 29 2c | 20 61 74 6f 69 28 6d 61 |(max+1),| atoi(ma|
|000040f0| 78 2b 31 29 20 2d 20 31 | 29 3b 0d 09 09 09 2a 6e |x+1) - 1|);....*n|
|00004100| 65 78 74 20 3d 20 63 68 | 3b 0d 09 09 20 20 20 20 |ext = ch|;...    |
|00004110| 7d 0d 09 09 20 20 20 20 | 69 66 20 28 69 74 65 72 |}...    |if (iter|
|00004120| 20 21 3d 20 31 20 7c 7c | 20 2a 6d 61 78 20 3d 3d | != 1 ||| *max ==|
|00004130| 20 27 2c 27 29 20 7b 0d | 09 09 09 72 65 67 70 61 | ',') {.|...regpa|
|00004140| 72 73 65 20 3d 20 6f 72 | 69 67 70 61 72 73 65 3b |rse = or|igparse;|
|00004150| 09 2f 2a 20 62 61 63 6b | 20 75 70 20 69 6e 70 75 |./* back| up inpu|
|00004160| 74 20 70 6f 69 6e 74 65 | 72 20 2a 2f 0d 09 09 09 |t pointe|r */....|
|00004170| 72 65 67 6e 70 61 72 20 | 3d 20 6f 72 69 67 6e 70 |regnpar |= orignp|
|00004180| 61 72 3b 09 2f 2a 20 64 | 6f 6e 27 74 20 6d 61 6b |ar;./* d|on't mak|
|00004190| 65 20 6d 6f 72 65 20 70 | 61 72 65 6e 73 20 2a 2f |e more p|arens */|
|000041a0| 0d 09 09 20 20 20 20 7d | 0d 09 09 20 20 20 20 65 |...    }|...    e|
|000041b0| 6c 73 65 20 7b 0d 09 09 | 09 72 65 67 70 61 72 73 |lse {...|.regpars|
|000041c0| 65 20 3d 20 6e 65 78 74 | 3b 0d 09 09 09 67 6f 74 |e = next|;....got|
|000041d0| 6f 20 6e 65 73 74 5f 63 | 68 65 63 6b 3b 0d 09 09 |o nest_c|heck;...|
|000041e0| 20 20 20 20 7d 0d 09 09 | 20 20 20 20 2a 66 6c 61 |    }...|    *fla|
|000041f0| 67 70 20 3d 20 66 6c 61 | 67 73 3b 0d 09 09 20 20 |gp = fla|gs;...  |
|00004200| 20 20 72 65 74 75 72 6e | 20 72 65 74 3b 0d 09 09 |  return| ret;...|
|00004210| 7d 0d 09 09 69 66 20 28 | 2a 6d 61 78 20 3d 3d 20 |}...if (|*max == |
|00004220| 27 2c 27 29 20 7b 0d 09 | 09 20 20 20 20 6d 61 78 |',') {..|.    max|
|00004230| 2b 2b 3b 0d 09 09 20 20 | 20 20 69 74 65 72 20 3d |++;...  |  iter =|
|00004240| 20 61 74 6f 69 28 6d 61 | 78 29 3b 0d 09 09 20 20 | atoi(ma|x);...  |
|00004250| 20 20 69 66 20 28 6d 61 | 78 20 3d 3d 20 6e 65 78 |  if (ma|x == nex|
|00004260| 74 29 20 7b 09 09 2f 2a | 20 61 6e 79 20 6e 75 6d |t) {../*| any num|
|00004270| 62 65 72 20 6d 6f 72 65 | 3f 20 2a 2f 0d 09 09 09 |ber more|? */....|
|00004280| 72 65 67 70 61 72 73 65 | 20 3d 20 6e 65 78 74 3b |regparse| = next;|
|00004290| 0d 09 09 09 6f 70 20 3d | 20 27 2a 27 3b 09 09 2f |....op =| '*';../|
|000042a0| 2a 20 66 61 6b 65 20 75 | 70 20 6f 6e 65 20 77 69 |* fake u|p one wi|
|000042b0| 74 68 20 61 20 73 74 61 | 72 20 2a 2f 0d 09 09 20 |th a sta|r */... |
|000042c0| 20 20 20 7d 0d 09 09 20 | 20 20 20 65 6c 73 65 20 |   }... |   else |
|000042d0| 69 66 20 28 69 74 65 72 | 20 3e 20 30 29 20 7b 0d |if (iter| > 0) {.|
|000042e0| 09 09 09 6f 70 20 3d 20 | 27 3f 27 3b 09 09 2f 2a |...op = |'?';../*|
|000042f0| 20 66 61 6b 65 20 75 70 | 20 6f 70 74 69 6f 6e 61 | fake up| optiona|
|00004300| 6c 20 61 74 6f 6d 20 2a | 2f 0d 09 09 09 63 68 20 |l atom *|/....ch |
|00004310| 3d 20 2a 6e 65 78 74 3b | 0d 09 09 09 73 70 72 69 |= *next;|....spri|
|00004320| 6e 74 66 28 6d 61 78 2c | 22 25 2e 2a 64 22 2c 20 |ntf(max,|"%.*d", |
|00004330| 6e 65 78 74 2d 6d 61 78 | 2c 20 69 74 65 72 20 2d |next-max|, iter -|
|00004340| 20 31 29 3b 0d 09 09 09 | 2a 6e 65 78 74 20 3d 20 | 1);....|*next = |
|00004350| 63 68 3b 0d 09 09 09 69 | 66 20 28 69 74 65 72 20 |ch;....i|f (iter |
|00004360| 3d 3d 20 31 29 0d 09 09 | 09 20 20 20 20 72 65 67 |== 1)...|.    reg|
|00004370| 70 61 72 73 65 20 3d 20 | 6e 65 78 74 3b 0d 09 09 |parse = |next;...|
|00004380| 09 65 6c 73 65 20 7b 0d | 09 09 09 20 20 20 20 72 |.else {.|...    r|
|00004390| 65 67 70 61 72 73 65 20 | 3d 20 6f 72 69 67 70 61 |egparse |= origpa|
|000043a0| 72 73 65 20 2d 20 31 3b | 20 2f 2a 20 6f 66 66 73 |rse - 1;| /* offs|
|000043b0| 65 74 20 2b 2b 20 62 65 | 6c 6f 77 20 2a 2f 0d 09 |et ++ be|low */..|
|000043c0| 09 09 20 20 20 20 72 65 | 67 6e 70 61 72 20 3d 20 |..    re|gnpar = |
|000043d0| 6f 72 69 67 6e 70 61 72 | 3b 0d 09 09 09 7d 0d 09 |orignpar|;....}..|
|000043e0| 09 20 20 20 20 7d 0d 09 | 09 20 20 20 20 65 6c 73 |.    }..|.    els|
|000043f0| 65 0d 09 09 09 66 61 74 | 61 6c 28 22 43 61 6e 27 |e....fat|al("Can'|
|00004400| 74 20 64 6f 20 7b 6e 2c | 30 7d 22 29 3b 0d 09 09 |t do {n,|0}");...|
|00004410| 7d 0d 09 09 65 6c 73 65 | 0d 09 09 20 20 20 20 66 |}...else|...    f|
|00004420| 61 74 61 6c 28 22 43 61 | 6e 27 74 20 64 6f 20 7b |atal("Ca|n't do {|
|00004430| 30 7d 22 29 3b 0d 09 20 | 20 20 20 7d 0d 09 7d 0d |0}");.. |   }..}.|
|00004440| 0d 09 69 66 20 28 21 49 | 53 4d 55 4c 54 31 28 6f |..if (!I|SMULT1(o|
|00004450| 70 29 29 20 7b 0d 09 09 | 2a 66 6c 61 67 70 20 3d |p)) {...|*flagp =|
|00004460| 20 66 6c 61 67 73 3b 0d | 09 09 72 65 74 75 72 6e | flags;.|..return|
|00004470| 28 72 65 74 29 3b 0d 09 | 7d 0d 0d 09 69 66 20 28 |(ret);..|}...if (|
|00004480| 21 28 66 6c 61 67 73 26 | 48 41 53 57 49 44 54 48 |!(flags&|HASWIDTH|
|00004490| 29 20 26 26 20 6f 70 20 | 21 3d 20 27 3f 27 29 0d |) && op |!= '?').|
|000044a0| 09 09 46 41 49 4c 28 22 | 72 65 67 65 78 70 20 2a |..FAIL("|regexp *|
|000044b0| 2b 20 6f 70 65 72 61 6e | 64 20 63 6f 75 6c 64 20 |+ operan|d could |
|000044c0| 62 65 20 65 6d 70 74 79 | 22 29 3b 0d 09 2a 66 6c |be empty|");..*fl|
|000044d0| 61 67 70 20 3d 20 28 6f | 70 20 21 3d 20 27 2b 27 |agp = (o|p != '+'|
|000044e0| 29 20 3f 20 28 57 4f 52 | 53 54 7c 53 50 53 54 41 |) ? (WOR|ST|SPSTA|
|000044f0| 52 54 29 20 3a 20 28 57 | 4f 52 53 54 7c 48 41 53 |RT) : (W|ORST|HAS|
|00004500| 57 49 44 54 48 29 3b 0d | 0d 09 69 66 20 28 6f 70 |WIDTH);.|..if (op|
|00004510| 20 3d 3d 20 27 2a 27 20 | 26 26 20 28 66 6c 61 67 | == '*' |&& (flag|
|00004520| 73 26 53 49 4d 50 4c 45 | 29 29 0d 09 09 72 65 67 |s&SIMPLE|))...reg|
|00004530| 69 6e 73 65 72 74 28 53 | 54 41 52 2c 20 72 65 74 |insert(S|TAR, ret|
|00004540| 29 3b 0d 09 65 6c 73 65 | 20 69 66 20 28 6f 70 20 |);..else| if (op |
|00004550| 3d 3d 20 27 2a 27 29 20 | 7b 0d 09 09 2f 2a 20 45 |== '*') |{.../* E|
|00004560| 6d 69 74 20 78 2a 20 61 | 73 20 28 78 26 7c 29 2c |mit x* a|s (x&|),|
|00004570| 20 77 68 65 72 65 20 26 | 20 6d 65 61 6e 73 20 22 | where &| means "|
|00004580| 73 65 6c 66 22 2e 20 2a | 2f 0d 09 09 72 65 67 69 |self". *|/...regi|
|00004590| 6e 73 65 72 74 28 42 52 | 41 4e 43 48 2c 20 72 65 |nsert(BR|ANCH, re|
|000045a0| 74 29 3b 09 09 09 2f 2a | 20 45 69 74 68 65 72 20 |t);.../*| Either |
|000045b0| 78 20 2a 2f 0d 09 09 72 | 65 67 6f 70 74 61 69 6c |x */...r|egoptail|
|000045c0| 28 72 65 74 2c 20 72 65 | 67 6e 6f 64 65 28 42 41 |(ret, re|gnode(BA|
|000045d0| 43 4b 29 29 3b 09 09 2f | 2a 20 61 6e 64 20 6c 6f |CK));../|* and lo|
|000045e0| 6f 70 20 2a 2f 0d 09 09 | 72 65 67 6f 70 74 61 69 |op */...|regoptai|
|000045f0| 6c 28 72 65 74 2c 20 72 | 65 74 29 3b 09 09 09 2f |l(ret, r|et);.../|
|00004600| 2a 20 62 61 63 6b 20 2a | 2f 0d 09 09 72 65 67 74 |* back *|/...regt|
|00004610| 61 69 6c 28 72 65 74 2c | 20 72 65 67 6e 6f 64 65 |ail(ret,| regnode|
|00004620| 28 42 52 41 4e 43 48 29 | 29 3b 09 09 2f 2a 20 6f |(BRANCH)|);../* o|
|00004630| 72 20 2a 2f 0d 09 09 72 | 65 67 74 61 69 6c 28 72 |r */...r|egtail(r|
|00004640| 65 74 2c 20 72 65 67 6e | 6f 64 65 28 4e 4f 54 48 |et, regn|ode(NOTH|
|00004650| 49 4e 47 29 29 3b 09 09 | 2f 2a 20 6e 75 6c 6c 2e |ING));..|/* null.|
|00004660| 20 2a 2f 0d 09 7d 20 65 | 6c 73 65 20 69 66 20 28 | */..} e|lse if (|
|00004670| 6f 70 20 3d 3d 20 27 2b | 27 20 26 26 20 28 66 6c |op == '+|' && (fl|
|00004680| 61 67 73 26 53 49 4d 50 | 4c 45 29 29 0d 09 09 72 |ags&SIMP|LE))...r|
|00004690| 65 67 69 6e 73 65 72 74 | 28 50 4c 55 53 2c 20 72 |eginsert|(PLUS, r|
|000046a0| 65 74 29 3b 0d 09 65 6c | 73 65 20 69 66 20 28 6f |et);..el|se if (o|
|000046b0| 70 20 3d 3d 20 27 2b 27 | 29 20 7b 0d 09 09 2f 2a |p == '+'|) {.../*|
|000046c0| 20 45 6d 69 74 20 78 2b | 20 61 73 20 78 28 26 7c | Emit x+| as x(&||
|000046d0| 29 2c 20 77 68 65 72 65 | 20 26 20 6d 65 61 6e 73 |), where| & means|
|000046e0| 20 22 73 65 6c 66 22 2e | 20 2a 2f 0d 09 09 6e 65 | "self".| */...ne|
|000046f0| 78 74 20 3d 20 72 65 67 | 6e 6f 64 65 28 42 52 41 |xt = reg|node(BRA|
|00004700| 4e 43 48 29 3b 09 09 09 | 2f 2a 20 45 69 74 68 65 |NCH);...|/* Eithe|
|00004710| 72 20 2a 2f 0d 09 09 72 | 65 67 74 61 69 6c 28 72 |r */...r|egtail(r|
|00004720| 65 74 2c 20 6e 65 78 74 | 29 3b 0d 09 09 72 65 67 |et, next|);...reg|
|00004730| 74 61 69 6c 28 72 65 67 | 6e 6f 64 65 28 42 41 43 |tail(reg|node(BAC|
|00004740| 4b 29 2c 20 72 65 74 29 | 3b 09 09 2f 2a 20 6c 6f |K), ret)|;../* lo|
|00004750| 6f 70 20 62 61 63 6b 20 | 2a 2f 0d 09 09 72 65 67 |op back |*/...reg|
|00004760| 74 61 69 6c 28 6e 65 78 | 74 2c 20 72 65 67 6e 6f |tail(nex|t, regno|
|00004770| 64 65 28 42 52 41 4e 43 | 48 29 29 3b 09 09 2f 2a |de(BRANC|H));../*|
|00004780| 20 6f 72 20 2a 2f 0d 09 | 09 72 65 67 74 61 69 6c | or */..|.regtail|
|00004790| 28 72 65 74 2c 20 72 65 | 67 6e 6f 64 65 28 4e 4f |(ret, re|gnode(NO|
|000047a0| 54 48 49 4e 47 29 29 3b | 09 09 2f 2a 20 6e 75 6c |THING));|../* nul|
|000047b0| 6c 2e 20 2a 2f 0d 09 7d | 20 65 6c 73 65 20 69 66 |l. */..}| else if|
|000047c0| 20 28 6f 70 20 3d 3d 20 | 27 3f 27 29 20 7b 0d 09 | (op == |'?') {..|
|000047d0| 09 2f 2a 20 45 6d 69 74 | 20 78 3f 20 61 73 20 28 |./* Emit| x? as (|
|000047e0| 78 7c 29 20 2a 2f 0d 09 | 09 72 65 67 69 6e 73 65 |x|) */..|.reginse|
|000047f0| 72 74 28 42 52 41 4e 43 | 48 2c 20 72 65 74 29 3b |rt(BRANC|H, ret);|
|00004800| 09 09 09 2f 2a 20 45 69 | 74 68 65 72 20 78 20 2a |.../* Ei|ther x *|
|00004810| 2f 0d 09 09 72 65 67 74 | 61 69 6c 28 72 65 74 2c |/...regt|ail(ret,|
|00004820| 20 72 65 67 6e 6f 64 65 | 28 42 52 41 4e 43 48 29 | regnode|(BRANCH)|
|00004830| 29 3b 09 09 2f 2a 20 6f | 72 20 2a 2f 0d 09 09 6e |);../* o|r */...n|
|00004840| 65 78 74 20 3d 20 72 65 | 67 6e 6f 64 65 28 4e 4f |ext = re|gnode(NO|
|00004850| 54 48 49 4e 47 29 3b 09 | 09 2f 2a 20 6e 75 6c 6c |THING);.|./* null|
|00004860| 2e 20 2a 2f 0d 09 09 72 | 65 67 74 61 69 6c 28 72 |. */...r|egtail(r|
|00004870| 65 74 2c 20 6e 65 78 74 | 29 3b 0d 09 09 72 65 67 |et, next|);...reg|
|00004880| 6f 70 74 61 69 6c 28 72 | 65 74 2c 20 6e 65 78 74 |optail(r|et, next|
|00004890| 29 3b 0d 09 7d 0d 20 20 | 20 20 20 20 6e 65 73 74 |);..}.  |    nest|
|000048a0| 5f 63 68 65 63 6b 3a 0d | 09 72 65 67 70 61 72 73 |_check:.|.regpars|
|000048b0| 65 2b 2b 3b 0d 09 69 66 | 20 28 49 53 4d 55 4c 54 |e++;..if| (ISMULT|
|000048c0| 32 28 72 65 67 70 61 72 | 73 65 29 29 0d 09 09 46 |2(regpar|se))...F|
|000048d0| 41 49 4c 28 22 6e 65 73 | 74 65 64 20 2a 3f 2b 20 |AIL("nes|ted *?+ |
|000048e0| 69 6e 20 72 65 67 65 78 | 70 22 29 3b 0d 0d 09 72 |in regex|p");...r|
|000048f0| 65 74 75 72 6e 28 72 65 | 74 29 3b 0d 7d 0d 0d 2f |eturn(re|t);.}../|
|00004900| 2a 0d 20 2d 20 72 65 67 | 61 74 6f 6d 20 2d 20 74 |*. - reg|atom - t|
|00004910| 68 65 20 6c 6f 77 65 73 | 74 20 6c 65 76 65 6c 0d |he lowes|t level.|
|00004920| 20 2a 0d 20 2a 20 4f 70 | 74 69 6d 69 7a 61 74 69 | *. * Op|timizati|
|00004930| 6f 6e 3a 20 20 67 6f 62 | 62 6c 65 73 20 61 6e 20 |on:  gob|bles an |
|00004940| 65 6e 74 69 72 65 20 73 | 65 71 75 65 6e 63 65 20 |entire s|equence |
|00004950| 6f 66 20 6f 72 64 69 6e | 61 72 79 20 63 68 61 72 |of ordin|ary char|
|00004960| 61 63 74 65 72 73 20 73 | 6f 20 74 68 61 74 0d 20 |acters s|o that. |
|00004970| 2a 20 69 74 20 63 61 6e | 20 74 75 72 6e 20 74 68 |* it can| turn th|
|00004980| 65 6d 20 69 6e 74 6f 20 | 61 20 73 69 6e 67 6c 65 |em into |a single|
|00004990| 20 6e 6f 64 65 2c 20 77 | 68 69 63 68 20 69 73 20 | node, w|hich is |
|000049a0| 73 6d 61 6c 6c 65 72 20 | 74 6f 20 73 74 6f 72 65 |smaller |to store|
|000049b0| 20 61 6e 64 0d 20 2a 20 | 66 61 73 74 65 72 20 74 | and. * |faster t|
|000049c0| 6f 20 72 75 6e 2e 20 20 | 42 61 63 6b 73 6c 61 73 |o run.  |Backslas|
|000049d0| 68 65 64 20 63 68 61 72 | 61 63 74 65 72 73 20 61 |hed char|acters a|
|000049e0| 72 65 20 65 78 63 65 70 | 74 69 6f 6e 73 2c 20 65 |re excep|tions, e|
|000049f0| 61 63 68 20 62 65 63 6f | 6d 69 6e 67 20 61 0d 20 |ach beco|ming a. |
|00004a00| 2a 20 73 65 70 61 72 61 | 74 65 20 6e 6f 64 65 3b |* separa|te node;|
|00004a10| 20 74 68 65 20 63 6f 64 | 65 20 69 73 20 73 69 6d | the cod|e is sim|
|00004a20| 70 6c 65 72 20 74 68 61 | 74 20 77 61 79 20 61 6e |pler tha|t way an|
|00004a30| 64 20 69 74 27 73 20 6e | 6f 74 20 77 6f 72 74 68 |d it's n|ot worth|
|00004a40| 20 66 69 78 69 6e 67 2e | 0d 20 2a 0d 20 2a 20 5b | fixing.|. *. * [|
|00004a50| 59 65 73 2c 20 69 74 20 | 69 73 20 77 6f 72 74 68 |Yes, it |is worth|
|00004a60| 20 66 69 78 69 6e 67 2c | 20 73 6f 6d 65 20 73 63 | fixing,| some sc|
|00004a70| 72 69 70 74 73 20 63 61 | 6e 20 72 75 6e 20 74 77 |ripts ca|n run tw|
|00004a80| 69 63 65 20 74 68 65 20 | 73 70 65 65 64 2e 5d 0d |ice the |speed.].|
|00004a90| 20 2a 2f 0d 73 74 61 74 | 69 63 20 63 68 61 72 20 | */.stat|ic char |
|00004aa0| 2a 0d 72 65 67 61 74 6f | 6d 28 66 6c 61 67 70 29 |*.regato|m(flagp)|
|00004ab0| 0d 69 6e 74 20 2a 66 6c | 61 67 70 3b 0d 7b 0d 09 |.int *fl|agp;.{..|
|00004ac0| 72 65 67 69 73 74 65 72 | 20 63 68 61 72 20 2a 72 |register| char *r|
|00004ad0| 65 74 3b 0d 09 69 6e 74 | 20 66 6c 61 67 73 3b 0d |et;..int| flags;.|
|00004ae0| 0d 09 2a 66 6c 61 67 70 | 20 3d 20 57 4f 52 53 54 |..*flagp| = WORST|
|00004af0| 3b 09 09 2f 2a 20 54 65 | 6e 74 61 74 69 76 65 6c |;../* Te|ntativel|
|00004b00| 79 2e 20 2a 2f 0d 0d 09 | 73 77 69 74 63 68 20 28 |y. */...|switch (|
|00004b10| 2a 72 65 67 70 61 72 73 | 65 2b 2b 29 20 7b 0d 09 |*regpars|e++) {..|
|00004b20| 63 61 73 65 20 27 5e 27 | 3a 0d 09 09 72 65 74 20 |case '^'|:...ret |
|00004b30| 3d 20 72 65 67 6e 6f 64 | 65 28 42 4f 4c 29 3b 0d |= regnod|e(BOL);.|
|00004b40| 09 09 62 72 65 61 6b 3b | 0d 09 63 61 73 65 20 27 |..break;|..case '|
|00004b50| 24 27 3a 0d 09 09 72 65 | 74 20 3d 20 72 65 67 6e |$':...re|t = regn|
|00004b60| 6f 64 65 28 45 4f 4c 29 | 3b 0d 09 09 62 72 65 61 |ode(EOL)|;...brea|
|00004b70| 6b 3b 0d 09 63 61 73 65 | 20 27 2e 27 3a 0d 09 09 |k;..case| '.':...|
|00004b80| 72 65 74 20 3d 20 72 65 | 67 6e 6f 64 65 28 41 4e |ret = re|gnode(AN|
|00004b90| 59 29 3b 0d 09 09 2a 66 | 6c 61 67 70 20 7c 3d 20 |Y);...*f|lagp |= |
|00004ba0| 48 41 53 57 49 44 54 48 | 7c 53 49 4d 50 4c 45 3b |HASWIDTH||SIMPLE;|
|00004bb0| 0d 09 09 62 72 65 61 6b | 3b 0d 09 63 61 73 65 20 |...break|;..case |
|00004bc0| 27 5b 27 3a 0d 09 09 72 | 65 74 20 3d 20 72 65 67 |'[':...r|et = reg|
|00004bd0| 63 6c 61 73 73 28 29 3b | 0d 09 09 2a 66 6c 61 67 |class();|...*flag|
|00004be0| 70 20 7c 3d 20 48 41 53 | 57 49 44 54 48 7c 53 49 |p |= HAS|WIDTH|SI|
|00004bf0| 4d 50 4c 45 3b 0d 09 09 | 62 72 65 61 6b 3b 0d 09 |MPLE;...|break;..|
|00004c00| 63 61 73 65 20 27 28 27 | 3a 0d 09 09 72 65 74 20 |case '('|:...ret |
|00004c10| 3d 20 72 65 67 28 31 2c | 20 26 66 6c 61 67 73 29 |= reg(1,| &flags)|
|00004c20| 3b 0d 09 09 69 66 20 28 | 72 65 74 20 3d 3d 20 4e |;...if (|ret == N|
|00004c30| 55 4c 4c 29 0d 09 09 09 | 72 65 74 75 72 6e 28 4e |ULL)....|return(N|
|00004c40| 55 4c 4c 29 3b 0d 09 09 | 2a 66 6c 61 67 70 20 7c |ULL);...|*flagp ||
|00004c50| 3d 20 66 6c 61 67 73 26 | 28 48 41 53 57 49 44 54 |= flags&|(HASWIDT|
|00004c60| 48 7c 53 50 53 54 41 52 | 54 29 3b 0d 09 09 62 72 |H|SPSTAR|T);...br|
|00004c70| 65 61 6b 3b 0d 09 63 61 | 73 65 20 27 7c 27 3a 0d |eak;..ca|se '|':.|
|00004c80| 09 63 61 73 65 20 27 29 | 27 3a 0d 09 09 46 41 49 |.case ')|':...FAI|
|00004c90| 4c 28 22 69 6e 74 65 72 | 6e 61 6c 20 75 72 70 20 |L("inter|nal urp |
|00004ca0| 69 6e 20 72 65 67 65 78 | 70 22 29 3b 09 2f 2a 20 |in regex|p");./* |
|00004cb0| 53 75 70 70 6f 73 65 64 | 20 74 6f 20 62 65 20 63 |Supposed| to be c|
|00004cc0| 61 75 67 68 74 20 65 61 | 72 6c 69 65 72 2e 20 2a |aught ea|rlier. *|
|00004cd0| 2f 0d 09 09 62 72 65 61 | 6b 3b 0d 09 63 61 73 65 |/...brea|k;..case|
|00004ce0| 20 27 3f 27 3a 0d 09 63 | 61 73 65 20 27 2b 27 3a | '?':..c|ase '+':|
|00004cf0| 0d 09 63 61 73 65 20 27 | 2a 27 3a 0d 09 09 46 41 |..case '|*':...FA|
|00004d00| 49 4c 28 22 3f 2b 2a 20 | 66 6f 6c 6c 6f 77 73 20 |IL("?+* |follows |
|00004d10| 6e 6f 74 68 69 6e 67 20 | 69 6e 20 72 65 67 65 78 |nothing |in regex|
|00004d20| 70 22 29 3b 0d 09 09 62 | 72 65 61 6b 3b 0d 09 63 |p");...b|reak;..c|
|00004d30| 61 73 65 20 27 5c 5c 27 | 3a 0d 09 09 73 77 69 74 |ase '\\'|:...swit|
|00004d40| 63 68 20 28 2a 72 65 67 | 70 61 72 73 65 29 20 7b |ch (*reg|parse) {|
|00004d50| 0d 09 09 63 61 73 65 20 | 27 77 27 3a 0d 09 09 09 |...case |'w':....|
|00004d60| 72 65 74 20 3d 20 72 65 | 67 6e 6f 64 65 28 41 4c |ret = re|gnode(AL|
|00004d70| 4e 55 4d 29 3b 0d 09 09 | 09 2a 66 6c 61 67 70 20 |NUM);...|.*flagp |
|00004d80| 7c 3d 20 48 41 53 57 49 | 44 54 48 7c 53 49 4d 50 ||= HASWI|DTH|SIMP|
|00004d90| 4c 45 3b 0d 09 09 09 72 | 65 67 70 61 72 73 65 2b |LE;....r|egparse+|
|00004da0| 2b 3b 0d 09 09 09 62 72 | 65 61 6b 3b 0d 09 09 63 |+;....br|eak;...c|
|00004db0| 61 73 65 20 27 57 27 3a | 0d 09 09 09 72 65 74 20 |ase 'W':|....ret |
|00004dc0| 3d 20 72 65 67 6e 6f 64 | 65 28 4e 41 4c 4e 55 4d |= regnod|e(NALNUM|
|00004dd0| 29 3b 0d 09 09 09 2a 66 | 6c 61 67 70 20 7c 3d 20 |);....*f|lagp |= |
|00004de0| 48 41 53 57 49 44 54 48 | 7c 53 49 4d 50 4c 45 3b |HASWIDTH||SIMPLE;|
|00004df0| 0d 09 09 09 72 65 67 70 | 61 72 73 65 2b 2b 3b 0d |....regp|arse++;.|
|00004e00| 09 09 09 62 72 65 61 6b | 3b 0d 09 09 63 61 73 65 |...break|;...case|
|00004e10| 20 27 62 27 3a 0d 09 09 | 09 72 65 74 20 3d 20 72 | 'b':...|.ret = r|
|00004e20| 65 67 6e 6f 64 65 28 42 | 4f 55 4e 44 29 3b 0d 09 |egnode(B|OUND);..|
|00004e30| 09 09 2a 66 6c 61 67 70 | 20 7c 3d 20 53 49 4d 50 |..*flagp| |= SIMP|
|00004e40| 4c 45 3b 0d 09 09 09 72 | 65 67 70 61 72 73 65 2b |LE;....r|egparse+|
|00004e50| 2b 3b 0d 09 09 09 62 72 | 65 61 6b 3b 0d 09 09 63 |+;....br|eak;...c|
|00004e60| 61 73 65 20 27 42 27 3a | 0d 09 09 09 72 65 74 20 |ase 'B':|....ret |
|00004e70| 3d 20 72 65 67 6e 6f 64 | 65 28 4e 42 4f 55 4e 44 |= regnod|e(NBOUND|
|00004e80| 29 3b 0d 09 09 09 2a 66 | 6c 61 67 70 20 7c 3d 20 |);....*f|lagp |= |
|00004e90| 53 49 4d 50 4c 45 3b 0d | 09 09 09 72 65 67 70 61 |SIMPLE;.|...regpa|
|00004ea0| 72 73 65 2b 2b 3b 0d 09 | 09 09 62 72 65 61 6b 3b |rse++;..|..break;|
|00004eb0| 0d 09 09 63 61 73 65 20 | 27 73 27 3a 0d 09 09 09 |...case |'s':....|
|00004ec0| 72 65 74 20 3d 20 72 65 | 67 6e 6f 64 65 28 53 50 |ret = re|gnode(SP|
|00004ed0| 41 43 45 29 3b 0d 09 09 | 09 2a 66 6c 61 67 70 20 |ACE);...|.*flagp |
|00004ee0| 7c 3d 20 48 41 53 57 49 | 44 54 48 7c 53 49 4d 50 ||= HASWI|DTH|SIMP|
|00004ef0| 4c 45 3b 0d 09 09 09 72 | 65 67 70 61 72 73 65 2b |LE;....r|egparse+|
|00004f00| 2b 3b 0d 09 09 09 62 72 | 65 61 6b 3b 0d 09 09 63 |+;....br|eak;...c|
|00004f10| 61 73 65 20 27 53 27 3a | 0d 09 09 09 72 65 74 20 |ase 'S':|....ret |
|00004f20| 3d 20 72 65 67 6e 6f 64 | 65 28 4e 53 50 41 43 45 |= regnod|e(NSPACE|
|00004f30| 29 3b 0d 09 09 09 2a 66 | 6c 61 67 70 20 7c 3d 20 |);....*f|lagp |= |
|00004f40| 48 41 53 57 49 44 54 48 | 7c 53 49 4d 50 4c 45 3b |HASWIDTH||SIMPLE;|
|00004f50| 0d 09 09 09 72 65 67 70 | 61 72 73 65 2b 2b 3b 0d |....regp|arse++;.|
|00004f60| 09 09 09 62 72 65 61 6b | 3b 0d 09 09 63 61 73 65 |...break|;...case|
|00004f70| 20 27 64 27 3a 0d 09 09 | 09 72 65 74 20 3d 20 72 | 'd':...|.ret = r|
|00004f80| 65 67 6e 6f 64 65 28 44 | 49 47 49 54 29 3b 0d 09 |egnode(D|IGIT);..|
|00004f90| 09 09 2a 66 6c 61 67 70 | 20 7c 3d 20 48 41 53 57 |..*flagp| |= HASW|
|00004fa0| 49 44 54 48 7c 53 49 4d | 50 4c 45 3b 0d 09 09 09 |IDTH|SIM|PLE;....|
|00004fb0| 72 65 67 70 61 72 73 65 | 2b 2b 3b 0d 09 09 09 62 |regparse|++;....b|
|00004fc0| 72 65 61 6b 3b 0d 09 09 | 63 61 73 65 20 27 44 27 |reak;...|case 'D'|
|00004fd0| 3a 0d 09 09 09 72 65 74 | 20 3d 20 72 65 67 6e 6f |:....ret| = regno|
|00004fe0| 64 65 28 4e 44 49 47 49 | 54 29 3b 0d 09 09 09 2a |de(NDIGI|T);....*|
|00004ff0| 66 6c 61 67 70 20 7c 3d | 20 48 41 53 57 49 44 54 |flagp |=| HASWIDT|
|00005000| 48 7c 53 49 4d 50 4c 45 | 3b 0d 09 09 09 72 65 67 |H|SIMPLE|;....reg|
|00005010| 70 61 72 73 65 2b 2b 3b | 0d 09 09 09 62 72 65 61 |parse++;|....brea|
|00005020| 6b 3b 0d 09 09 63 61 73 | 65 20 27 6e 27 3a 0d 09 |k;...cas|e 'n':..|
|00005030| 09 63 61 73 65 20 27 72 | 27 3a 0d 09 09 63 61 73 |.case 'r|':...cas|
|00005040| 65 20 27 74 27 3a 0d 09 | 09 63 61 73 65 20 27 66 |e 't':..|.case 'f|
|00005050| 27 3a 0d 09 09 63 61 73 | 65 20 27 65 27 3a 0d 09 |':...cas|e 'e':..|
|00005060| 09 63 61 73 65 20 27 61 | 27 3a 0d 09 09 63 61 73 |.case 'a|':...cas|
|00005070| 65 20 27 78 27 3a 0d 09 | 09 63 61 73 65 20 27 63 |e 'x':..|.case 'c|
|00005080| 27 3a 0d 09 09 63 61 73 | 65 20 27 30 27 3a 0d 09 |':...cas|e '0':..|
|00005090| 09 09 67 6f 74 6f 20 64 | 65 66 63 68 61 72 3b 0d |..goto d|efchar;.|
|000050a0| 09 09 63 61 73 65 20 27 | 31 27 3a 20 63 61 73 65 |..case '|1': case|
|000050b0| 20 27 32 27 3a 20 63 61 | 73 65 20 27 33 27 3a 20 | '2': ca|se '3': |
|000050c0| 63 61 73 65 20 27 34 27 | 3a 0d 09 09 63 61 73 65 |case '4'|:...case|
|000050d0| 20 27 35 27 3a 20 63 61 | 73 65 20 27 36 27 3a 20 | '5': ca|se '6': |
|000050e0| 63 61 73 65 20 27 37 27 | 3a 20 63 61 73 65 20 27 |case '7'|: case '|
|000050f0| 38 27 3a 20 63 61 73 65 | 20 27 39 27 3a 0d 09 09 |8': case| '9':...|
|00005100| 09 7b 0d 09 09 09 20 20 | 20 20 69 6e 74 20 6e 75 |.{....  |  int nu|
|00005110| 6d 20 3d 20 61 74 6f 69 | 28 72 65 67 70 61 72 73 |m = atoi|(regpars|
|00005120| 65 29 3b 0d 0d 09 09 09 | 20 20 20 20 69 66 20 28 |e);.....|    if (|
|00005130| 6e 75 6d 20 3e 20 39 20 | 26 26 20 6e 75 6d 20 3e |num > 9 |&& num >|
|00005140| 3d 20 72 65 67 6e 70 61 | 72 29 0d 09 09 09 09 67 |= regnpa|r).....g|
|00005150| 6f 74 6f 20 64 65 66 63 | 68 61 72 3b 0d 09 09 09 |oto defc|har;....|
|00005160| 20 20 20 20 65 6c 73 65 | 20 7b 0d 09 09 09 09 72 |    else| {.....r|
|00005170| 65 67 73 61 77 62 61 63 | 6b 20 3d 20 31 3b 0d 09 |egsawbac|k = 1;..|
|00005180| 09 09 09 72 65 74 20 3d | 20 72 65 67 61 6e 6f 64 |...ret =| reganod|
|00005190| 65 28 52 45 46 2c 20 6e | 75 6d 29 3b 0d 09 09 09 |e(REF, n|um);....|
|000051a0| 09 77 68 69 6c 65 20 28 | 69 73 44 49 47 49 54 28 |.while (|isDIGIT(|
|000051b0| 2a 72 65 67 70 61 72 73 | 65 29 29 0d 09 09 09 09 |*regpars|e)).....|
|000051c0| 20 20 20 20 72 65 67 70 | 61 72 73 65 2b 2b 3b 0d |    regp|arse++;.|
|000051d0| 09 09 09 09 2a 66 6c 61 | 67 70 20 7c 3d 20 53 49 |....*fla|gp |= SI|
|000051e0| 4d 50 4c 45 3b 0d 09 09 | 09 20 20 20 20 7d 0d 09 |MPLE;...|.    }..|
|000051f0| 09 09 7d 0d 09 09 09 62 | 72 65 61 6b 3b 0d 09 09 |..}....b|reak;...|
|00005200| 63 61 73 65 20 27 5c 30 | 27 3a 0d 09 09 09 69 66 |case '\0|':....if|
|00005210| 20 28 72 65 67 70 61 72 | 73 65 20 3e 3d 20 72 65 | (regpar|se >= re|
|00005220| 67 78 65 6e 64 29 0d 09 | 09 09 20 20 20 20 46 41 |gxend)..|..    FA|
|00005230| 49 4c 28 22 74 72 61 69 | 6c 69 6e 67 20 5c 5c 20 |IL("trai|ling \\ |
|00005240| 69 6e 20 72 65 67 65 78 | 70 22 29 3b 0d 09 09 09 |in regex|p");....|
|00005250| 2f 2a 20 46 41 4c 4c 20 | 54 48 52 4f 55 47 48 20 |/* FALL |THROUGH |
|00005260| 2a 2f 0d 09 09 64 65 66 | 61 75 6c 74 3a 0d 09 09 |*/...def|ault:...|
|00005270| 09 67 6f 74 6f 20 64 65 | 66 63 68 61 72 3b 0d 09 |.goto de|fchar;..|
|00005280| 09 7d 0d 09 09 62 72 65 | 61 6b 3b 0d 09 64 65 66 |.}...bre|ak;..def|
|00005290| 61 75 6c 74 3a 20 7b 0d | 09 09 09 72 65 67 69 73 |ault: {.|...regis|
|000052a0| 74 65 72 20 69 6e 74 20 | 6c 65 6e 3b 0d 09 09 09 |ter int |len;....|
|000052b0| 72 65 67 69 73 74 65 72 | 20 63 68 61 72 20 65 6e |register| char en|
|000052c0| 64 65 72 3b 0d 09 09 09 | 72 65 67 69 73 74 65 72 |der;....|register|
|000052d0| 20 63 68 61 72 20 2a 70 | 3b 0d 09 09 09 63 68 61 | char *p|;....cha|
|000052e0| 72 20 2a 6f 6c 64 70 3b | 0d 09 09 09 69 6e 74 20 |r *oldp;|....int |
|000052f0| 6e 75 6d 6c 65 6e 3b 0d | 0d 09 09 20 20 20 20 64 |numlen;.|...    d|
|00005300| 65 66 63 68 61 72 3a 0d | 09 09 09 72 65 74 20 3d |efchar:.|...ret =|
|00005310| 20 72 65 67 6e 6f 64 65 | 28 45 58 41 43 54 4c 59 | regnode|(EXACTLY|
|00005320| 29 3b 0d 09 09 09 72 65 | 67 63 28 30 29 3b 09 09 |);....re|gc(0);..|
|00005330| 2f 2a 20 73 61 76 65 20 | 73 70 6f 74 20 66 6f 72 |/* save |spot for|
|00005340| 20 6c 65 6e 20 2a 2f 0d | 09 09 09 66 6f 72 20 28 | len */.|...for (|
|00005350| 6c 65 6e 3d 30 2c 20 70 | 3d 72 65 67 70 61 72 73 |len=0, p|=regpars|
|00005360| 65 2d 31 3b 0d 09 09 09 | 20 20 6c 65 6e 20 3c 20 |e-1;....|  len < |
|00005370| 31 32 37 20 26 26 20 70 | 20 3c 20 72 65 67 78 65 |127 && p| < regxe|
|00005380| 6e 64 3b 0d 09 09 09 20 | 20 6c 65 6e 2b 2b 29 0d |nd;.... | len++).|
|00005390| 09 09 09 7b 0d 09 09 09 | 20 20 20 20 6f 6c 64 70 |...{....|    oldp|
|000053a0| 20 3d 20 70 3b 0d 09 09 | 09 20 20 20 20 73 77 69 | = p;...|.    swi|
|000053b0| 74 63 68 20 28 2a 70 29 | 20 7b 0d 09 09 09 20 20 |tch (*p)| {....  |
|000053c0| 20 20 63 61 73 65 20 27 | 5e 27 3a 0d 09 09 09 20 |  case '|^':.... |
|000053d0| 20 20 20 63 61 73 65 20 | 27 24 27 3a 0d 09 09 09 |   case |'$':....|
|000053e0| 20 20 20 20 63 61 73 65 | 20 27 2e 27 3a 0d 09 09 |    case| '.':...|
|000053f0| 09 20 20 20 20 63 61 73 | 65 20 27 5b 27 3a 0d 09 |.    cas|e '[':..|
|00005400| 09 09 20 20 20 20 63 61 | 73 65 20 27 28 27 3a 0d |..    ca|se '(':.|
|00005410| 09 09 09 20 20 20 20 63 | 61 73 65 20 27 29 27 3a |...    c|ase ')':|
|00005420| 0d 09 09 09 20 20 20 20 | 63 61 73 65 20 27 7c 27 |....    |case '|'|
|00005430| 3a 0d 09 09 09 09 67 6f | 74 6f 20 6c 6f 6f 70 64 |:.....go|to loopd|
|00005440| 6f 6e 65 3b 0d 09 09 09 | 20 20 20 20 63 61 73 65 |one;....|    case|
|00005450| 20 27 5c 5c 27 3a 0d 09 | 09 09 09 73 77 69 74 63 | '\\':..|...switc|
|00005460| 68 20 28 2a 2b 2b 70 29 | 20 7b 0d 09 09 09 09 63 |h (*++p)| {.....c|
|00005470| 61 73 65 20 27 77 27 3a | 0d 09 09 09 09 63 61 73 |ase 'w':|.....cas|
|00005480| 65 20 27 57 27 3a 0d 09 | 09 09 09 63 61 73 65 20 |e 'W':..|...case |
|00005490| 27 62 27 3a 0d 09 09 09 | 09 63 61 73 65 20 27 42 |'b':....|.case 'B|
|000054a0| 27 3a 0d 09 09 09 09 63 | 61 73 65 20 27 73 27 3a |':.....c|ase 's':|
|000054b0| 0d 09 09 09 09 63 61 73 | 65 20 27 53 27 3a 0d 09 |.....cas|e 'S':..|
|000054c0| 09 09 09 63 61 73 65 20 | 27 64 27 3a 0d 09 09 09 |...case |'d':....|
|000054d0| 09 63 61 73 65 20 27 44 | 27 3a 0d 09 09 09 09 20 |.case 'D|':..... |
|000054e0| 20 20 20 2d 2d 70 3b 0d | 09 09 09 09 20 20 20 20 |   --p;.|....    |
|000054f0| 67 6f 74 6f 20 6c 6f 6f | 70 64 6f 6e 65 3b 0d 09 |goto loo|pdone;..|
|00005500| 09 09 09 63 61 73 65 20 | 27 6e 27 3a 0d 09 09 09 |...case |'n':....|
|00005510| 09 09 65 6e 64 65 72 20 | 3d 20 27 5c 6e 27 3b 0d |..ender |= '\n';.|
|00005520| 09 09 09 09 09 70 2b 2b | 3b 0d 09 09 09 09 09 62 |.....p++|;......b|
|00005530| 72 65 61 6b 3b 0d 09 09 | 09 09 63 61 73 65 20 27 |reak;...|..case '|
|00005540| 72 27 3a 0d 09 09 09 09 | 09 65 6e 64 65 72 20 3d |r':.....|.ender =|
|00005550| 20 27 5c 72 27 3b 0d 09 | 09 09 09 09 70 2b 2b 3b | '\r';..|....p++;|
|00005560| 0d 09 09 09 09 09 62 72 | 65 61 6b 3b 0d 09 09 09 |......br|eak;....|
|00005570| 09 63 61 73 65 20 27 74 | 27 3a 0d 09 09 09 09 09 |.case 't|':......|
|00005580| 65 6e 64 65 72 20 3d 20 | 27 5c 74 27 3b 0d 09 09 |ender = |'\t';...|
|00005590| 09 09 09 70 2b 2b 3b 0d | 09 09 09 09 09 62 72 65 |...p++;.|.....bre|
|000055a0| 61 6b 3b 0d 09 09 09 09 | 63 61 73 65 20 27 66 27 |ak;.....|case 'f'|
|000055b0| 3a 0d 09 09 09 09 09 65 | 6e 64 65 72 20 3d 20 27 |:......e|nder = '|
|000055c0| 5c 66 27 3b 0d 09 09 09 | 09 09 70 2b 2b 3b 0d 09 |\f';....|..p++;..|
|000055d0| 09 09 09 09 62 72 65 61 | 6b 3b 0d 09 09 09 09 63 |....brea|k;.....c|
|000055e0| 61 73 65 20 27 65 27 3a | 0d 09 09 09 09 09 65 6e |ase 'e':|......en|
|000055f0| 64 65 72 20 3d 20 27 5c | 30 33 33 27 3b 0d 09 09 |der = '\|033';...|
|00005600| 09 09 09 70 2b 2b 3b 0d | 09 09 09 09 09 62 72 65 |...p++;.|.....bre|
|00005610| 61 6b 3b 0d 09 09 09 09 | 63 61 73 65 20 27 61 27 |ak;.....|case 'a'|
|00005620| 3a 0d 09 09 09 09 09 65 | 6e 64 65 72 20 3d 20 27 |:......e|nder = '|
|00005630| 5c 30 30 37 27 3b 0d 09 | 09 09 09 09 70 2b 2b 3b |\007';..|....p++;|
|00005640| 0d 09 09 09 09 09 62 72 | 65 61 6b 3b 0d 09 09 09 |......br|eak;....|
|00005650| 09 63 61 73 65 20 27 78 | 27 3a 0d 09 09 09 09 20 |.case 'x|':..... |
|00005660| 20 20 20 65 6e 64 65 72 | 20 3d 20 73 63 61 6e 68 |   ender| = scanh|
|00005670| 65 78 28 2b 2b 70 2c 20 | 32 2c 20 26 6e 75 6d 6c |ex(++p, |2, &numl|
|00005680| 65 6e 29 3b 0d 09 09 09 | 09 20 20 20 20 70 20 2b |en);....|.    p +|
|00005690| 3d 20 6e 75 6d 6c 65 6e | 3b 0d 09 09 09 09 20 20 |= numlen|;.....  |
|000056a0| 20 20 62 72 65 61 6b 3b | 0d 09 09 09 09 63 61 73 |  break;|.....cas|
|000056b0| 65 20 27 63 27 3a 0d 09 | 09 09 09 20 20 20 20 70 |e 'c':..|...    p|
|000056c0| 2b 2b 3b 0d 09 09 09 09 | 20 20 20 20 65 6e 64 65 |++;.....|    ende|
|000056d0| 72 20 3d 20 2a 70 2b 2b | 3b 0d 09 09 09 09 20 20 |r = *p++|;.....  |
|000056e0| 20 20 69 66 20 28 69 73 | 4c 4f 57 45 52 28 65 6e |  if (is|LOWER(en|
|000056f0| 64 65 72 29 29 0d 09 09 | 09 09 09 65 6e 64 65 72 |der))...|...ender|
|00005700| 20 3d 20 74 6f 75 70 70 | 65 72 28 65 6e 64 65 72 | = toupp|er(ender|
|00005710| 29 3b 0d 09 09 09 09 20 | 20 20 20 65 6e 64 65 72 |);..... |   ender|
|00005720| 20 5e 3d 20 36 34 3b 0d | 09 09 09 09 20 20 20 20 | ^= 64;.|....    |
|00005730| 62 72 65 61 6b 3b 0d 09 | 09 09 09 63 61 73 65 20 |break;..|...case |
|00005740| 27 30 27 3a 20 63 61 73 | 65 20 27 31 27 3a 20 63 |'0': cas|e '1': c|
|00005750| 61 73 65 20 27 32 27 3a | 20 63 61 73 65 20 27 33 |ase '2':| case '3|
|00005760| 27 3a 63 61 73 65 20 27 | 34 27 3a 0d 09 09 09 09 |':case '|4':.....|
|00005770| 63 61 73 65 20 27 35 27 | 3a 20 63 61 73 65 20 27 |case '5'|: case '|
|00005780| 36 27 3a 20 63 61 73 65 | 20 27 37 27 3a 20 63 61 |6': case| '7': ca|
|00005790| 73 65 20 27 38 27 3a 63 | 61 73 65 20 27 39 27 3a |se '8':c|ase '9':|
|000057a0| 0d 09 09 09 09 20 20 20 | 20 69 66 20 28 2a 70 20 |.....   | if (*p |
|000057b0| 3d 3d 20 27 30 27 20 7c | 7c 0d 09 09 09 09 20 20 |== '0' |||.....  |
|000057c0| 20 20 20 20 28 69 73 44 | 49 47 49 54 28 70 5b 31 |    (isD|IGIT(p[1|
|000057d0| 5d 29 20 26 26 20 61 74 | 6f 69 28 70 29 20 3e 3d |]) && at|oi(p) >=|
|000057e0| 20 72 65 67 6e 70 61 72 | 29 20 29 20 7b 0d 09 09 | regnpar|) ) {...|
|000057f0| 09 09 09 65 6e 64 65 72 | 20 3d 20 73 63 61 6e 6f |...ender| = scano|
|00005800| 63 74 28 70 2c 20 33 2c | 20 26 6e 75 6d 6c 65 6e |ct(p, 3,| &numlen|
|00005810| 29 3b 0d 09 09 09 09 09 | 70 20 2b 3d 20 6e 75 6d |);......|p += num|
|00005820| 6c 65 6e 3b 0d 09 09 09 | 09 20 20 20 20 7d 0d 09 |len;....|.    }..|
|00005830| 09 09 09 20 20 20 20 65 | 6c 73 65 20 7b 0d 09 09 |...    e|lse {...|
|00005840| 09 09 09 2d 2d 70 3b 0d | 09 09 09 09 09 67 6f 74 |...--p;.|.....got|
|00005850| 6f 20 6c 6f 6f 70 64 6f | 6e 65 3b 0d 09 09 09 09 |o loopdo|ne;.....|
|00005860| 20 20 20 20 7d 0d 09 09 | 09 09 20 20 20 20 62 72 |    }...|..    br|
|00005870| 65 61 6b 3b 0d 09 09 09 | 09 63 61 73 65 20 27 5c |eak;....|.case '\|
|00005880| 30 27 3a 0d 09 09 09 09 | 20 20 20 20 69 66 20 28 |0':.....|    if (|
|00005890| 70 20 3e 3d 20 72 65 67 | 78 65 6e 64 29 0d 09 09 |p >= reg|xend)...|
|000058a0| 09 09 09 46 41 49 4c 28 | 22 74 72 61 69 6c 69 6e |...FAIL(|"trailin|
|000058b0| 67 20 5c 5c 20 69 6e 20 | 72 65 67 65 78 70 22 29 |g \\ in |regexp")|
|000058c0| 3b 0d 09 09 09 09 20 20 | 20 20 2f 2a 20 46 41 4c |;.....  |  /* FAL|
|000058d0| 4c 20 54 48 52 4f 55 47 | 48 20 2a 2f 0d 09 09 09 |L THROUG|H */....|
|000058e0| 09 64 65 66 61 75 6c 74 | 3a 0d 09 09 09 09 20 20 |.default|:.....  |
|000058f0| 20 20 65 6e 64 65 72 20 | 3d 20 2a 70 2b 2b 3b 0d |  ender |= *p++;.|
|00005900| 09 09 09 09 20 20 20 20 | 62 72 65 61 6b 3b 0d 09 |....    |break;..|
|00005910| 09 09 09 7d 0d 09 09 09 | 09 62 72 65 61 6b 3b 0d |...}....|.break;.|
|00005920| 09 09 09 20 20 20 20 64 | 65 66 61 75 6c 74 3a 0d |...    d|efault:.|
|00005930| 09 09 09 09 65 6e 64 65 | 72 20 3d 20 2a 70 2b 2b |....ende|r = *p++|
|00005940| 3b 0d 09 09 09 09 62 72 | 65 61 6b 3b 0d 09 09 09 |;.....br|eak;....|
|00005950| 20 20 20 20 7d 0d 09 09 | 09 20 20 20 20 69 66 20 |    }...|.    if |
|00005960| 28 72 65 67 66 6f 6c 64 | 20 26 26 20 69 73 55 50 |(regfold| && isUP|
|00005970| 50 45 52 28 65 6e 64 65 | 72 29 29 0d 09 09 09 09 |PER(ende|r)).....|
|00005980| 20 20 20 20 65 6e 64 65 | 72 20 3d 20 74 6f 6c 6f |    ende|r = tolo|
|00005990| 77 65 72 28 65 6e 64 65 | 72 29 3b 0d 09 09 09 20 |wer(ende|r);.... |
|000059a0| 20 20 20 69 66 20 28 49 | 53 4d 55 4c 54 32 28 70 |   if (I|SMULT2(p|
|000059b0| 29 29 20 7b 20 2f 2a 20 | 42 61 63 6b 20 6f 66 66 |)) { /* |Back off|
|000059c0| 20 6f 6e 20 3f 2b 2a 2e | 20 2a 2f 0d 09 09 09 09 | on ?+*.| */.....|
|000059d0| 69 66 20 28 6c 65 6e 29 | 0d 09 09 09 09 20 20 20 |if (len)|.....   |
|000059e0| 20 70 20 3d 20 6f 6c 64 | 70 3b 0d 09 09 09 09 65 | p = old|p;.....e|
|000059f0| 6c 73 65 20 7b 0d 09 09 | 09 09 20 20 20 20 6c 65 |lse {...|..    le|
|00005a00| 6e 2b 2b 3b 0d 09 09 09 | 09 20 20 20 20 72 65 67 |n++;....|.    reg|
|00005a10| 63 28 65 6e 64 65 72 29 | 3b 0d 09 09 09 09 7d 0d |c(ender)|;.....}.|
|00005a20| 09 09 09 09 62 72 65 61 | 6b 3b 0d 09 09 09 20 20 |....brea|k;....  |
|00005a30| 20 20 7d 0d 09 09 09 20 | 20 20 20 72 65 67 63 28 |  }.... |   regc(|
|00005a40| 65 6e 64 65 72 29 3b 0d | 09 09 09 7d 0d 09 09 20 |ender);.|...}... |
|00005a50| 20 20 20 6c 6f 6f 70 64 | 6f 6e 65 3a 0d 09 09 09 |   loopd|one:....|
|00005a60| 72 65 67 70 61 72 73 65 | 20 3d 20 70 3b 0d 09 09 |regparse| = p;...|
|00005a70| 09 69 66 20 28 6c 65 6e | 20 3c 3d 20 30 29 0d 09 |.if (len| <= 0)..|
|00005a80| 09 09 09 46 41 49 4c 28 | 22 69 6e 74 65 72 6e 61 |...FAIL(|"interna|
|00005a90| 6c 20 64 69 73 61 73 74 | 65 72 20 69 6e 20 72 65 |l disast|er in re|
|00005aa0| 67 65 78 70 22 29 3b 0d | 09 09 09 2a 66 6c 61 67 |gexp");.|...*flag|
|00005ab0| 70 20 7c 3d 20 48 41 53 | 57 49 44 54 48 3b 0d 09 |p |= HAS|WIDTH;..|
|00005ac0| 09 09 69 66 20 28 6c 65 | 6e 20 3d 3d 20 31 29 0d |..if (le|n == 1).|
|00005ad0| 09 09 09 09 2a 66 6c 61 | 67 70 20 7c 3d 20 53 49 |....*fla|gp |= SI|
|00005ae0| 4d 50 4c 45 3b 0d 09 09 | 09 69 66 20 28 72 65 67 |MPLE;...|.if (reg|
|00005af0| 63 6f 64 65 20 21 3d 20 | 26 72 65 67 64 75 6d 6d |code != |&regdumm|
|00005b00| 79 29 0d 09 09 09 20 20 | 20 20 2a 4f 50 45 52 41 |y)....  |  *OPERA|
|00005b10| 4e 44 28 72 65 74 29 20 | 3d 20 6c 65 6e 3b 0d 09 |ND(ret) |= len;..|
|00005b20| 09 09 72 65 67 63 28 27 | 5c 30 27 29 3b 0d 09 09 |..regc('|\0');...|
|00005b30| 7d 0d 09 09 62 72 65 61 | 6b 3b 0d 09 7d 0d 0d 09 |}...brea|k;..}...|
|00005b40| 72 65 74 75 72 6e 28 72 | 65 74 29 3b 0d 7d 0d 0d |return(r|et);.}..|
|00005b50| 73 74 61 74 69 63 20 76 | 6f 69 64 0d 72 65 67 73 |static v|oid.regs|
|00005b60| 65 74 28 62 69 74 73 2c | 64 65 66 2c 63 29 0d 63 |et(bits,|def,c).c|
|00005b70| 68 61 72 20 2a 62 69 74 | 73 3b 0d 69 6e 74 20 64 |har *bit|s;.int d|
|00005b80| 65 66 3b 0d 72 65 67 69 | 73 74 65 72 20 69 6e 74 |ef;.regi|ster int|
|00005b90| 20 63 3b 0d 7b 0d 09 69 | 66 20 28 72 65 67 63 6f | c;.{..i|f (regco|
|00005ba0| 64 65 20 3d 3d 20 26 72 | 65 67 64 75 6d 6d 79 29 |de == &r|egdummy)|
|00005bb0| 0d 09 20 20 20 20 72 65 | 74 75 72 6e 3b 0d 09 63 |..    re|turn;..c|
|00005bc0| 20 26 3d 20 32 35 35 3b | 0d 09 69 66 20 28 64 65 | &= 255;|..if (de|
|00005bd0| 66 29 0d 09 09 62 69 74 | 73 5b 63 20 3e 3e 20 33 |f)...bit|s[c >> 3|
|00005be0| 5d 20 26 3d 20 7e 28 31 | 20 3c 3c 20 28 63 20 26 |] &= ~(1| << (c &|
|00005bf0| 20 37 29 29 3b 0d 09 65 | 6c 73 65 0d 09 09 62 69 | 7));..e|lse...bi|
|00005c00| 74 73 5b 63 20 3e 3e 20 | 33 5d 20 7c 3d 20 20 28 |ts[c >> |3] |=  (|
|00005c10| 31 20 3c 3c 20 28 63 20 | 26 20 37 29 29 3b 0d 7d |1 << (c |& 7));.}|
|00005c20| 0d 0d 73 74 61 74 69 63 | 20 63 68 61 72 20 2a 0d |..static| char *.|
|00005c30| 72 65 67 63 6c 61 73 73 | 28 29 0d 7b 0d 09 72 65 |regclass|().{..re|
|00005c40| 67 69 73 74 65 72 20 63 | 68 61 72 20 2a 62 69 74 |gister c|har *bit|
|00005c50| 73 3b 0d 09 72 65 67 69 | 73 74 65 72 20 69 6e 74 |s;..regi|ster int|
|00005c60| 20 63 6c 61 73 73 3b 0d | 09 72 65 67 69 73 74 65 | class;.|.registe|
|00005c70| 72 20 69 6e 74 20 6c 61 | 73 74 63 6c 61 73 73 3b |r int la|stclass;|
|00005c80| 0d 09 72 65 67 69 73 74 | 65 72 20 69 6e 74 20 72 |..regist|er int r|
|00005c90| 61 6e 67 65 20 3d 20 30 | 3b 0d 09 72 65 67 69 73 |ange = 0|;..regis|
|00005ca0| 74 65 72 20 63 68 61 72 | 20 2a 72 65 74 3b 0d 09 |ter char| *ret;..|
|00005cb0| 72 65 67 69 73 74 65 72 | 20 69 6e 74 20 64 65 66 |register| int def|
|00005cc0| 3b 0d 09 69 6e 74 20 6e | 75 6d 6c 65 6e 3b 0d 0d |;..int n|umlen;..|
|00005cd0| 09 72 65 74 20 3d 20 72 | 65 67 6e 6f 64 65 28 41 |.ret = r|egnode(A|
|00005ce0| 4e 59 4f 46 29 3b 0d 09 | 69 66 20 28 2a 72 65 67 |NYOF);..|if (*reg|
|00005cf0| 70 61 72 73 65 20 3d 3d | 20 27 5e 27 29 20 7b 09 |parse ==| '^') {.|
|00005d00| 2f 2a 20 43 6f 6d 70 6c | 65 6d 65 6e 74 20 6f 66 |/* Compl|ement of|
|00005d10| 20 72 61 6e 67 65 2e 20 | 2a 2f 0d 09 09 72 65 67 | range. |*/...reg|
|00005d20| 70 61 72 73 65 2b 2b 3b | 0d 09 09 64 65 66 20 3d |parse++;|...def =|
|00005d30| 20 30 3b 0d 09 7d 20 65 | 6c 73 65 20 7b 0d 09 09 | 0;..} e|lse {...|
|00005d40| 64 65 66 20 3d 20 32 35 | 35 3b 0d 09 7d 0d 09 62 |def = 25|5;..}..b|
|00005d50| 69 74 73 20 3d 20 72 65 | 67 63 6f 64 65 3b 0d 09 |its = re|gcode;..|
|00005d60| 66 6f 72 20 28 63 6c 61 | 73 73 20 3d 20 30 3b 20 |for (cla|ss = 0; |
|00005d70| 63 6c 61 73 73 20 3c 20 | 33 32 3b 20 63 6c 61 73 |class < |32; clas|
|00005d80| 73 2b 2b 29 0d 09 20 20 | 20 20 72 65 67 63 28 64 |s++)..  |  regc(d|
|00005d90| 65 66 29 3b 0d 09 69 66 | 20 28 2a 72 65 67 70 61 |ef);..if| (*regpa|
|00005da0| 72 73 65 20 3d 3d 20 27 | 5d 27 20 7c 7c 20 2a 72 |rse == '|]' || *r|
|00005db0| 65 67 70 61 72 73 65 20 | 3d 3d 20 27 2d 27 29 0d |egparse |== '-').|
|00005dc0| 09 09 67 6f 74 6f 20 73 | 6b 69 70 63 6f 6e 64 3b |..goto s|kipcond;|
|00005dd0| 09 09 2f 2a 20 61 6c 6c | 6f 77 20 31 73 74 20 63 |../* all|ow 1st c|
|00005de0| 68 61 72 20 74 6f 20 62 | 65 20 5d 20 6f 72 20 2d |har to b|e ] or -|
|00005df0| 20 2a 2f 0d 09 77 68 69 | 6c 65 20 28 72 65 67 70 | */..whi|le (regp|
|00005e00| 61 72 73 65 20 3c 20 72 | 65 67 78 65 6e 64 20 26 |arse < r|egxend &|
|00005e10| 26 20 2a 72 65 67 70 61 | 72 73 65 20 21 3d 20 27 |& *regpa|rse != '|
|00005e20| 5d 27 29 20 7b 0d 09 20 | 20 20 20 20 20 73 6b 69 |]') {.. |     ski|
|00005e30| 70 63 6f 6e 64 3a 0d 09 | 09 63 6c 61 73 73 20 3d |pcond:..|.class =|
|00005e40| 20 55 43 48 41 52 41 54 | 28 72 65 67 70 61 72 73 | UCHARAT|(regpars|
|00005e50| 65 2b 2b 29 3b 0d 09 09 | 69 66 20 28 63 6c 61 73 |e++);...|if (clas|
|00005e60| 73 20 3d 3d 20 27 5c 5c | 27 29 20 7b 0d 09 09 09 |s == '\\|') {....|
|00005e70| 63 6c 61 73 73 20 3d 20 | 55 43 48 41 52 41 54 28 |class = |UCHARAT(|
|00005e80| 72 65 67 70 61 72 73 65 | 2b 2b 29 3b 0d 09 09 09 |regparse|++);....|
|00005e90| 73 77 69 74 63 68 20 28 | 63 6c 61 73 73 29 20 7b |switch (|class) {|
|00005ea0| 0d 09 09 09 63 61 73 65 | 20 27 77 27 3a 0d 09 09 |....case| 'w':...|
|00005eb0| 09 09 66 6f 72 20 28 63 | 6c 61 73 73 20 3d 20 30 |..for (c|lass = 0|
|00005ec0| 3b 20 63 6c 61 73 73 20 | 3c 20 32 35 36 3b 20 63 |; class |< 256; c|
|00005ed0| 6c 61 73 73 2b 2b 29 0d | 09 09 09 09 20 20 20 20 |lass++).|....    |
|00005ee0| 69 66 20 28 69 73 41 4c | 4e 55 4d 28 63 6c 61 73 |if (isAL|NUM(clas|
|00005ef0| 73 29 29 0d 09 09 09 09 | 09 72 65 67 73 65 74 28 |s)).....|.regset(|
|00005f00| 62 69 74 73 2c 64 65 66 | 2c 63 6c 61 73 73 29 3b |bits,def|,class);|
|00005f10| 0d 09 09 09 09 6c 61 73 | 74 63 6c 61 73 73 20 3d |.....las|tclass =|
|00005f20| 20 31 32 33 34 3b 0d 09 | 09 09 09 63 6f 6e 74 69 | 1234;..|...conti|
|00005f30| 6e 75 65 3b 0d 09 09 09 | 63 61 73 65 20 27 57 27 |nue;....|case 'W'|
|00005f40| 3a 0d 09 09 09 09 66 6f | 72 20 28 63 6c 61 73 73 |:.....fo|r (class|
|00005f50| 20 3d 20 30 3b 20 63 6c | 61 73 73 20 3c 20 32 35 | = 0; cl|ass < 25|
|00005f60| 36 3b 20 63 6c 61 73 73 | 2b 2b 29 0d 09 09 09 09 |6; class|++).....|
|00005f70| 20 20 20 20 69 66 20 28 | 21 69 73 41 4c 4e 55 4d |    if (|!isALNUM|
|00005f80| 28 63 6c 61 73 73 29 29 | 0d 09 09 09 09 09 72 65 |(class))|......re|
|00005f90| 67 73 65 74 28 62 69 74 | 73 2c 64 65 66 2c 63 6c |gset(bit|s,def,cl|
|00005fa0| 61 73 73 29 3b 0d 09 09 | 09 09 6c 61 73 74 63 6c |ass);...|..lastcl|
|00005fb0| 61 73 73 20 3d 20 31 32 | 33 34 3b 0d 09 09 09 09 |ass = 12|34;.....|
|00005fc0| 63 6f 6e 74 69 6e 75 65 | 3b 0d 09 09 09 63 61 73 |continue|;....cas|
|00005fd0| 65 20 27 73 27 3a 0d 09 | 09 09 09 66 6f 72 20 28 |e 's':..|...for (|
|00005fe0| 63 6c 61 73 73 20 3d 20 | 30 3b 20 63 6c 61 73 73 |class = |0; class|
|00005ff0| 20 3c 20 32 35 36 3b 20 | 63 6c 61 73 73 2b 2b 29 | < 256; |class++)|
|00006000| 0d 09 09 09 09 20 20 20 | 20 69 66 20 28 69 73 53 |.....   | if (isS|
|00006010| 50 41 43 45 28 63 6c 61 | 73 73 29 29 0d 09 09 09 |PACE(cla|ss))....|
|00006020| 09 09 72 65 67 73 65 74 | 28 62 69 74 73 2c 64 65 |..regset|(bits,de|
|00006030| 66 2c 63 6c 61 73 73 29 | 3b 0d 09 09 09 09 6c 61 |f,class)|;.....la|
|00006040| 73 74 63 6c 61 73 73 20 | 3d 20 31 32 33 34 3b 0d |stclass |= 1234;.|
|00006050| 09 09 09 09 63 6f 6e 74 | 69 6e 75 65 3b 0d 09 09 |....cont|inue;...|
|00006060| 09 63 61 73 65 20 27 53 | 27 3a 0d 09 09 09 09 66 |.case 'S|':.....f|
|00006070| 6f 72 20 28 63 6c 61 73 | 73 20 3d 20 30 3b 20 63 |or (clas|s = 0; c|
|00006080| 6c 61 73 73 20 3c 20 32 | 35 36 3b 20 63 6c 61 73 |lass < 2|56; clas|
|00006090| 73 2b 2b 29 0d 09 09 09 | 09 20 20 20 20 69 66 20 |s++)....|.    if |
|000060a0| 28 21 69 73 53 50 41 43 | 45 28 63 6c 61 73 73 29 |(!isSPAC|E(class)|
|000060b0| 29 0d 09 09 09 09 09 72 | 65 67 73 65 74 28 62 69 |)......r|egset(bi|
|000060c0| 74 73 2c 64 65 66 2c 63 | 6c 61 73 73 29 3b 0d 09 |ts,def,c|lass);..|
|000060d0| 09 09 09 6c 61 73 74 63 | 6c 61 73 73 20 3d 20 31 |...lastc|lass = 1|
|000060e0| 32 33 34 3b 0d 09 09 09 | 09 63 6f 6e 74 69 6e 75 |234;....|.continu|
|000060f0| 65 3b 0d 09 09 09 63 61 | 73 65 20 27 64 27 3a 0d |e;....ca|se 'd':.|
|00006100| 09 09 09 09 66 6f 72 20 | 28 63 6c 61 73 73 20 3d |....for |(class =|
|00006110| 20 27 30 27 3b 20 63 6c | 61 73 73 20 3c 3d 20 27 | '0'; cl|ass <= '|
|00006120| 39 27 3b 20 63 6c 61 73 | 73 2b 2b 29 0d 09 09 09 |9'; clas|s++)....|
|00006130| 09 09 72 65 67 73 65 74 | 28 62 69 74 73 2c 64 65 |..regset|(bits,de|
|00006140| 66 2c 63 6c 61 73 73 29 | 3b 0d 09 09 09 09 6c 61 |f,class)|;.....la|
|00006150| 73 74 63 6c 61 73 73 20 | 3d 20 31 32 33 34 3b 0d |stclass |= 1234;.|
|00006160| 09 09 09 09 63 6f 6e 74 | 69 6e 75 65 3b 0d 09 09 |....cont|inue;...|
|00006170| 09 63 61 73 65 20 27 44 | 27 3a 0d 09 09 09 09 66 |.case 'D|':.....f|
|00006180| 6f 72 20 28 63 6c 61 73 | 73 20 3d 20 30 3b 20 63 |or (clas|s = 0; c|
|00006190| 6c 61 73 73 20 3c 20 27 | 30 27 3b 20 63 6c 61 73 |lass < '|0'; clas|
|000061a0| 73 2b 2b 29 0d 09 09 09 | 09 09 72 65 67 73 65 74 |s++)....|..regset|
|000061b0| 28 62 69 74 73 2c 64 65 | 66 2c 63 6c 61 73 73 29 |(bits,de|f,class)|
|000061c0| 3b 0d 09 09 09 09 66 6f | 72 20 28 63 6c 61 73 73 |;.....fo|r (class|
|000061d0| 20 3d 20 27 39 27 20 2b | 20 31 3b 20 63 6c 61 73 | = '9' +| 1; clas|
|000061e0| 73 20 3c 20 32 35 36 3b | 20 63 6c 61 73 73 2b 2b |s < 256;| class++|
|000061f0| 29 0d 09 09 09 09 09 72 | 65 67 73 65 74 28 62 69 |)......r|egset(bi|
|00006200| 74 73 2c 64 65 66 2c 63 | 6c 61 73 73 29 3b 0d 09 |ts,def,c|lass);..|
|00006210| 09 09 09 6c 61 73 74 63 | 6c 61 73 73 20 3d 20 31 |...lastc|lass = 1|
|00006220| 32 33 34 3b 0d 09 09 09 | 09 63 6f 6e 74 69 6e 75 |234;....|.continu|
|00006230| 65 3b 0d 09 09 09 63 61 | 73 65 20 27 6e 27 3a 0d |e;....ca|se 'n':.|
|00006240| 09 09 09 09 63 6c 61 73 | 73 20 3d 20 27 5c 6e 27 |....clas|s = '\n'|
|00006250| 3b 0d 09 09 09 09 62 72 | 65 61 6b 3b 0d 09 09 09 |;.....br|eak;....|
|00006260| 63 61 73 65 20 27 72 27 | 3a 0d 09 09 09 09 63 6c |case 'r'|:.....cl|
|00006270| 61 73 73 20 3d 20 27 5c | 72 27 3b 0d 09 09 09 09 |ass = '\|r';.....|
|00006280| 62 72 65 61 6b 3b 0d 09 | 09 09 63 61 73 65 20 27 |break;..|..case '|
|00006290| 74 27 3a 0d 09 09 09 09 | 63 6c 61 73 73 20 3d 20 |t':.....|class = |
|000062a0| 27 5c 74 27 3b 0d 09 09 | 09 09 62 72 65 61 6b 3b |'\t';...|..break;|
|000062b0| 0d 09 09 09 63 61 73 65 | 20 27 66 27 3a 0d 09 09 |....case| 'f':...|
|000062c0| 09 09 63 6c 61 73 73 20 | 3d 20 27 5c 66 27 3b 0d |..class |= '\f';.|
|000062d0| 09 09 09 09 62 72 65 61 | 6b 3b 0d 09 09 09 63 61 |....brea|k;....ca|
|000062e0| 73 65 20 27 62 27 3a 0d | 09 09 09 09 63 6c 61 73 |se 'b':.|....clas|
|000062f0| 73 20 3d 20 27 5c 62 27 | 3b 0d 09 09 09 09 62 72 |s = '\b'|;.....br|
|00006300| 65 61 6b 3b 0d 09 09 09 | 63 61 73 65 20 27 65 27 |eak;....|case 'e'|
|00006310| 3a 0d 09 09 09 09 63 6c | 61 73 73 20 3d 20 27 5c |:.....cl|ass = '\|
|00006320| 30 33 33 27 3b 0d 09 09 | 09 09 62 72 65 61 6b 3b |033';...|..break;|
|00006330| 0d 09 09 09 63 61 73 65 | 20 27 61 27 3a 0d 09 09 |....case| 'a':...|
|00006340| 09 09 63 6c 61 73 73 20 | 3d 20 27 5c 30 30 37 27 |..class |= '\007'|
|00006350| 3b 0d 09 09 09 09 62 72 | 65 61 6b 3b 0d 09 09 09 |;.....br|eak;....|
|00006360| 63 61 73 65 20 27 78 27 | 3a 0d 09 09 09 09 63 6c |case 'x'|:.....cl|
|00006370| 61 73 73 20 3d 20 73 63 | 61 6e 68 65 78 28 72 65 |ass = sc|anhex(re|
|00006380| 67 70 61 72 73 65 2c 20 | 32 2c 20 26 6e 75 6d 6c |gparse, |2, &numl|
|00006390| 65 6e 29 3b 0d 09 09 09 | 09 72 65 67 70 61 72 73 |en);....|.regpars|
|000063a0| 65 20 2b 3d 20 6e 75 6d | 6c 65 6e 3b 0d 09 09 09 |e += num|len;....|
|000063b0| 09 62 72 65 61 6b 3b 0d | 09 09 09 63 61 73 65 20 |.break;.|...case |
|000063c0| 27 63 27 3a 0d 09 09 09 | 09 63 6c 61 73 73 20 3d |'c':....|.class =|
|000063d0| 20 2a 72 65 67 70 61 72 | 73 65 2b 2b 3b 0d 09 09 | *regpar|se++;...|
|000063e0| 09 09 69 66 20 28 69 73 | 4c 4f 57 45 52 28 63 6c |..if (is|LOWER(cl|
|000063f0| 61 73 73 29 29 0d 09 09 | 09 09 20 20 20 20 63 6c |ass))...|..    cl|
+--------+-------------------------+-------------------------+--------+--------+