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5c2bc3db20
HardenedBSD/usr.bin/lex/initparse.c
Warner Losh bdcbfde31e usr.bin: Remove ancient SCCS tags. 
Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by:		Netflix
2023-11-26 22:23:30 -07:00

1844 lines
48 KiB
C
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/* original parser id follows */
/* (use YYMAJOR/YYMINOR for ifdefs dependent on parser version) */
#define YYBYACC 1
#define YYMAJOR 1
#define YYMINOR 9
#define YYPATCH 20200330
#define YYEMPTY (-1)
#define yyclearin (yychar = YYEMPTY)
#define yyerrok (yyerrflag = 0)
#define YYRECOVERING() (yyerrflag != 0)
#define YYENOMEM (-2)
#define YYEOF 0
#define YYPREFIX "yy"
#define YYPURE 0
#line 35 "parse.y"
/* Copyright (c) 1990 The Regents of the University of California. */
/* All rights reserved. */
/* This code is derived from software contributed to Berkeley by */
/* Vern Paxson. */
/* The United States Government has rights in this work pursuant */
/* to contract no. DE-AC03-76SF00098 between the United States */
/* Department of Energy and the University of California. */
/* This file is part of flex. */
/* Redistribution and use in source and binary forms, with or without */
/* modification, are permitted provided that the following conditions */
/* are met: */
/* 1. Redistributions of source code must retain the above copyright */
/* notice, this list of conditions and the following disclaimer. */
/* 2. Redistributions in binary form must reproduce the above copyright */
/* notice, this list of conditions and the following disclaimer in the */
/* documentation and/or other materials provided with the distribution. */
/* Neither the name of the University nor the names of its contributors */
/* may be used to endorse or promote products derived from this software */
/* without specific prior written permission. */
/* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR */
/* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED */
/* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR */
/* PURPOSE. */
#include "flexdef.h"
#include "tables.h"
int pat, scnum, eps, headcnt, trailcnt, lastchar, i, rulelen;
int trlcontxt, xcluflg, currccl, cclsorted, varlength, variable_trail_rule;
int *scon_stk;
int scon_stk_ptr;
static int madeany = false; /* whether we've made the '.' character class */
static int ccldot, cclany;
int previous_continued_action; /* whether the previous rule's action was '|' */
#define format_warn3(fmt, a1, a2) \
do{ \
char fw3_msg[MAXLINE];\
snprintf( fw3_msg, MAXLINE,(fmt), (a1), (a2) );\
lwarn( fw3_msg );\
}while(0)
/* Expand a POSIX character class expression. */
#define CCL_EXPR(func) \
do{ \
int c; \
for ( c = 0; c < csize; ++c ) \
if ( isascii(c) && func(c) ) \
ccladd( currccl, c ); \
}while(0)
/* negated class */
#define CCL_NEG_EXPR(func) \
do{ \
int c; \
for ( c = 0; c < csize; ++c ) \
if ( !func(c) ) \
ccladd( currccl, c ); \
}while(0)
/* While POSIX defines isblank(), it's not ANSI C. */
#define IS_BLANK(c) ((c) == ' ' || (c) == '\t')
/* On some over-ambitious machines, such as DEC Alpha's, the default
* token type is "long" instead of "int"; this leads to problems with
* declaring yylval in flexdef.h. But so far, all the yacc's I've seen
* wrap their definitions of YYSTYPE with "#ifndef YYSTYPE"'s, so the
* following should ensure that the default token type is "int".
*/
#define YYSTYPE int
#line 102 "parse.c"
#if ! defined(YYSTYPE) && ! defined(YYSTYPE_IS_DECLARED)
/* Default: YYSTYPE is the semantic value type. */
typedef int YYSTYPE;
# define YYSTYPE_IS_DECLARED 1
#endif
/* compatibility with bison */
#ifdef YYPARSE_PARAM
/* compatibility with FreeBSD */
# ifdef YYPARSE_PARAM_TYPE
# define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM)
# else
# define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM)
# endif
#else
# define YYPARSE_DECL() yyparse(void)
#endif
/* Parameters sent to lex. */
#ifdef YYLEX_PARAM
# define YYLEX_DECL() yylex(void *YYLEX_PARAM)
# define YYLEX yylex(YYLEX_PARAM)
#else
# define YYLEX_DECL() yylex(void)
# define YYLEX yylex()
#endif
#if !(defined(yylex) || defined(YYSTATE))
int YYLEX_DECL();
#endif
/* Parameters sent to yyerror. */
#ifndef YYERROR_DECL
#define YYERROR_DECL() yyerror(const char *s)
#endif
#ifndef YYERROR_CALL
#define YYERROR_CALL(msg) yyerror(msg)
#endif
extern int YYPARSE_DECL();
#define CHAR 257
#define NUMBER 258
#define SECTEND 259
#define SCDECL 260
#define XSCDECL 261
#define NAME 262
#define PREVCCL 263
#define EOF_OP 264
#define TOK_OPTION 265
#define TOK_OUTFILE 266
#define TOK_PREFIX 267
#define TOK_YYCLASS 268
#define TOK_HEADER_FILE 269
#define TOK_EXTRA_TYPE 270
#define TOK_TABLES_FILE 271
#define CCE_ALNUM 272
#define CCE_ALPHA 273
#define CCE_BLANK 274
#define CCE_CNTRL 275
#define CCE_DIGIT 276
#define CCE_GRAPH 277
#define CCE_LOWER 278
#define CCE_PRINT 279
#define CCE_PUNCT 280
#define CCE_SPACE 281
#define CCE_UPPER 282
#define CCE_XDIGIT 283
#define CCE_NEG_ALNUM 284
#define CCE_NEG_ALPHA 285
#define CCE_NEG_BLANK 286
#define CCE_NEG_CNTRL 287
#define CCE_NEG_DIGIT 288
#define CCE_NEG_GRAPH 289
#define CCE_NEG_LOWER 290
#define CCE_NEG_PRINT 291
#define CCE_NEG_PUNCT 292
#define CCE_NEG_SPACE 293
#define CCE_NEG_UPPER 294
#define CCE_NEG_XDIGIT 295
#define CCL_OP_DIFF 296
#define CCL_OP_UNION 297
#define BEGIN_REPEAT_POSIX 298
#define END_REPEAT_POSIX 299
#define BEGIN_REPEAT_FLEX 300
#define END_REPEAT_FLEX 301
#define YYERRCODE 256
typedef int YYINT;
static const YYINT yylhs[] = { -1,
0, 1, 2, 2, 2, 2, 3, 6, 6, 7,
7, 7, 8, 9, 9, 10, 10, 10, 10, 10,
10, 4, 4, 4, 5, 12, 12, 12, 12, 14,
11, 11, 11, 15, 15, 15, 16, 13, 13, 13,
13, 18, 18, 17, 19, 19, 19, 19, 19, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 21, 21, 21, 23, 23, 24, 24, 24, 24,
25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
25, 25, 25, 25, 22, 22,
};
static const YYINT yylen[] = { 2,
5, 0, 3, 2, 0, 1, 1, 1, 1, 2,
1, 1, 2, 2, 0, 3, 3, 3, 3, 3,
3, 5, 5, 0, 0, 2, 1, 1, 1, 0,
4, 3, 0, 3, 1, 1, 1, 2, 3, 2,
1, 3, 1, 2, 2, 1, 6, 5, 4, 2,
2, 2, 6, 5, 4, 1, 1, 1, 3, 3,
1, 3, 3, 1, 3, 4, 4, 2, 2, 0,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 2, 0,
};
static const YYINT yydefred[] = { 2,
0, 0, 6, 0, 7, 8, 9, 15, 24, 0,
4, 0, 0, 12, 11, 0, 0, 0, 0, 0,
0, 0, 14, 0, 1, 0, 10, 0, 0, 0,
0, 0, 0, 0, 0, 24, 0, 16, 18, 19,
20, 17, 21, 32, 36, 37, 0, 35, 0, 29,
61, 58, 28, 0, 56, 96, 0, 0, 0, 27,
0, 0, 0, 0, 0, 64, 31, 0, 23, 26,
0, 0, 70, 0, 22, 0, 40, 0, 44, 0,
0, 0, 50, 51, 52, 0, 0, 34, 95, 59,
60, 0, 0, 71, 72, 73, 74, 75, 76, 77,
78, 79, 80, 82, 81, 83, 84, 85, 86, 87,
88, 93, 89, 90, 91, 94, 92, 65, 69, 39,
0, 0, 0, 62, 63, 66, 0, 49, 0, 55,
0, 67, 0, 48, 0, 54, 47, 53,
};
static const YYINT yydgoto[] = { 1,
2, 4, 9, 13, 25, 10, 16, 11, 12, 23,
26, 59, 60, 35, 47, 48, 61, 62, 63, 64,
65, 71, 66, 74, 119,
};
static const YYINT yysindex[] = { 0,
0, -222, 0, -155, 0, 0, 0, 0, 0, -215,
0, -123, 6, 0, 0, -193, 10, 21, 26, 31,
35, 37, 0, 59, 0, -44, 0, -147, -145, -140,
-133, -132, -129, 75, -214, 0, -19, 0, 0, 0,
0, 0, 0, 0, 0, 0, 23, 0, -48, 0,
0, 0, 0, -17, 0, 0, -17, 27, 128, 0,
-17, -1, -30, -41, -189, 0, 0, -121, 0, 0,
-31, -34, 0, -87, 0, -25, 0, -17, 0, -109,
-41, -108, 0, 0, 0, 60, 60, 0, 0, 0,
0, 46, 107, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-30, -36, -39, 0, 0, 0, -104, 0, -219, 0,
-238, 0, -144, 0, -143, 0, 0, 0,
};
static const YYINT yyrindex[] = { 0,
0, -141, 0, 0, 0, 0, 0, 0, 0, 0,
0, -134, 9, 0, 0, -125, 0, 0, 0, 0,
0, 0, 0, -178, 0, 22, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, -21, 0,
0, 0, 0, 0, 0, 0, 0, 85, 0, 0,
0, 144, 47, 4, -10, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 146, 0, 0, 0, 0,
18, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 124, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
50, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
static const YYINT yygindex[] = { 0,
0, 0, 0, 121, 133, 0, 0, 0, 0, 0,
0, 0, 106, 0, 0, 93, 0, 32, 84, -45,
0, 0, 25, 90, 0,
};
#define YYTABLESIZE 419
static const YYINT yytable[] = { 57,
83, 84, 90, 56, 131, 118, 91, 129, 25, 57,
120, 24, 33, 46, 56, 55, 56, 81, 33, 135,
57, 85, 57, 57, 33, 57, 55, 45, 55, 57,
57, 57, 57, 3, 77, 57, 57, 46, 133, 46,
14, 45, 33, 46, 46, 79, 15, 46, 33, 46,
46, 45, 57, 45, 33, 25, 43, 45, 45, 42,
58, 25, 136, 45, 45, 24, 68, 25, 27, 33,
28, 58, 33, 58, 54, 81, 69, 30, 36, 134,
57, 29, 43, 30, 67, 42, 30, 43, 72, 78,
42, 31, 76, 43, 46, 32, 42, 33, 78, 33,
34, 33, 33, 5, 6, 7, 86, 87, 45, 8,
124, 125, 25, 57, 38, 25, 39, 5, 5, 5,
73, 40, 78, 5, 13, 13, 13, 46, 41, 42,
13, 33, 43, 3, 3, 3, 44, 75, 126, 3,
46, 45, 17, 18, 19, 20, 21, 22, 122, 123,
58, 127, 132, 41, 137, 38, 49, 138, 37, 70,
88, 121, 92, 0, 0, 0, 0, 0, 0, 93,
43, 0, 0, 42, 0, 0, 0, 70, 0, 0,
0, 0, 0, 0, 94, 95, 96, 97, 98, 99,
100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
110, 111, 112, 113, 114, 115, 116, 117, 0, 0,
0, 0, 0, 0, 0, 0, 68, 0, 0, 0,
0, 0, 0, 0, 0, 89, 51, 0, 0, 0,
0, 0, 52, 0, 33, 33, 50, 51, 0, 51,
0, 33, 33, 52, 53, 52, 57, 0, 0, 0,
0, 0, 57, 0, 0, 0, 0, 0, 82, 0,
46, 130, 128, 0, 33, 33, 46, 80, 0, 0,
0, 33, 33, 0, 45, 0, 0, 25, 25, 0,
45, 0, 0, 0, 25, 25, 0, 57, 0, 57,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 46, 93, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 45, 0, 94, 95, 96,
97, 98, 99, 100, 101, 102, 103, 104, 105, 106,
107, 108, 109, 110, 111, 112, 113, 114, 115, 116,
117, 70, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 70, 70, 70, 70,
70, 70, 70, 70, 70, 70, 70, 70, 70, 70,
70, 70, 70, 70, 70, 70, 70, 70, 70, 70,
68, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 68, 68, 68, 68, 68,
68, 68, 68, 68, 68, 68, 68, 68, 68, 68,
68, 68, 68, 68, 68, 68, 68, 68, 68,
};
static const YYINT yycheck[] = { 10,
42, 43, 34, 34, 44, 93, 41, 44, 0, 40,
36, 60, 34, 10, 34, 46, 34, 63, 40, 258,
40, 63, 40, 34, 46, 36, 46, 10, 46, 40,
41, 42, 43, 256, 36, 46, 47, 34, 258, 36,
256, 256, 34, 40, 41, 47, 262, 262, 40, 46,
47, 34, 63, 36, 46, 34, 10, 40, 41, 10,
91, 40, 301, 46, 47, 60, 44, 46, 262, 91,
61, 91, 94, 91, 94, 121, 125, 256, 123, 299,
91, 61, 36, 262, 62, 36, 61, 41, 57, 124,
41, 61, 61, 47, 91, 61, 47, 61, 124, 91,
42, 123, 94, 259, 260, 261, 296, 297, 91, 265,
86, 87, 91, 124, 262, 94, 262, 259, 260, 261,
94, 262, 124, 265, 259, 260, 261, 124, 262, 262,
265, 123, 262, 259, 260, 261, 62, 10, 93, 265,
262, 124, 266, 267, 268, 269, 270, 271, 258, 258,
91, 45, 257, 10, 299, 10, 36, 301, 26, 54,
68, 78, 73, -1, -1, -1, -1, -1, -1, 257,
124, -1, -1, 124, -1, -1, -1, 93, -1, -1,
-1, -1, -1, -1, 272, 273, 274, 275, 276, 277,
278, 279, 280, 281, 282, 283, 284, 285, 286, 287,
288, 289, 290, 291, 292, 293, 294, 295, -1, -1,
-1, -1, -1, -1, -1, -1, 93, -1, -1, -1,
-1, -1, -1, -1, -1, 257, 257, -1, -1, -1,
-1, -1, 263, -1, 256, 257, 256, 257, -1, 257,
-1, 263, 264, 263, 264, 263, 257, -1, -1, -1,
-1, -1, 263, -1, -1, -1, -1, -1, 300, -1,
257, 301, 299, -1, 256, 257, 263, 298, -1, -1,
-1, 263, 264, -1, 257, -1, -1, 256, 257, -1,
263, -1, -1, -1, 263, 264, -1, 298, -1, 300,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, 298, 257, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, 298, -1, 272, 273, 274,
275, 276, 277, 278, 279, 280, 281, 282, 283, 284,
285, 286, 287, 288, 289, 290, 291, 292, 293, 294,
295, 257, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, 272, 273, 274, 275,
276, 277, 278, 279, 280, 281, 282, 283, 284, 285,
286, 287, 288, 289, 290, 291, 292, 293, 294, 295,
257, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, 272, 273, 274, 275, 276,
277, 278, 279, 280, 281, 282, 283, 284, 285, 286,
287, 288, 289, 290, 291, 292, 293, 294, 295,
};
#define YYFINAL 1
#ifndef YYDEBUG
#define YYDEBUG 0
#endif
#define YYMAXTOKEN 301
#define YYUNDFTOKEN 329
#define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a))
#if YYDEBUG
static const char *const yyname[] = {
"end-of-file",0,0,0,0,0,0,0,0,0,"'\\n'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,"'\"'",0,"'$'",0,0,0,"'('","')'","'*'","'+'","','","'-'","'.'","'/'",0,0,
0,0,0,0,0,0,0,0,0,0,"'<'","'='","'>'","'?'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,"'['",0,"']'","'^'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,"'{'","'|'","'}'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"CHAR","NUMBER","SECTEND",
"SCDECL","XSCDECL","NAME","PREVCCL","EOF_OP","TOK_OPTION","TOK_OUTFILE",
"TOK_PREFIX","TOK_YYCLASS","TOK_HEADER_FILE","TOK_EXTRA_TYPE","TOK_TABLES_FILE",
"CCE_ALNUM","CCE_ALPHA","CCE_BLANK","CCE_CNTRL","CCE_DIGIT","CCE_GRAPH",
"CCE_LOWER","CCE_PRINT","CCE_PUNCT","CCE_SPACE","CCE_UPPER","CCE_XDIGIT",
"CCE_NEG_ALNUM","CCE_NEG_ALPHA","CCE_NEG_BLANK","CCE_NEG_CNTRL","CCE_NEG_DIGIT",
"CCE_NEG_GRAPH","CCE_NEG_LOWER","CCE_NEG_PRINT","CCE_NEG_PUNCT","CCE_NEG_SPACE",
"CCE_NEG_UPPER","CCE_NEG_XDIGIT","CCL_OP_DIFF","CCL_OP_UNION",
"BEGIN_REPEAT_POSIX","END_REPEAT_POSIX","BEGIN_REPEAT_FLEX","END_REPEAT_FLEX",0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"illegal-symbol",
};
static const char *const yyrule[] = {
"$accept : goal",
"goal : initlex sect1 sect1end sect2 initforrule",
"initlex :",
"sect1 : sect1 startconddecl namelist1",
"sect1 : sect1 options",
"sect1 :",
"sect1 : error",
"sect1end : SECTEND",
"startconddecl : SCDECL",
"startconddecl : XSCDECL",
"namelist1 : namelist1 NAME",
"namelist1 : NAME",
"namelist1 : error",
"options : TOK_OPTION optionlist",
"optionlist : optionlist option",
"optionlist :",
"option : TOK_OUTFILE '=' NAME",
"option : TOK_EXTRA_TYPE '=' NAME",
"option : TOK_PREFIX '=' NAME",
"option : TOK_YYCLASS '=' NAME",
"option : TOK_HEADER_FILE '=' NAME",
"option : TOK_TABLES_FILE '=' NAME",
"sect2 : sect2 scon initforrule flexrule '\\n'",
"sect2 : sect2 scon '{' sect2 '}'",
"sect2 :",
"initforrule :",
"flexrule : '^' rule",
"flexrule : rule",
"flexrule : EOF_OP",
"flexrule : error",
"scon_stk_ptr :",
"scon : '<' scon_stk_ptr namelist2 '>'",
"scon : '<' '*' '>'",
"scon :",
"namelist2 : namelist2 ',' sconname",
"namelist2 : sconname",
"namelist2 : error",
"sconname : NAME",
"rule : re2 re",
"rule : re2 re '$'",
"rule : re '$'",
"rule : re",
"re : re '|' series",
"re : series",
"re2 : re '/'",
"series : series singleton",
"series : singleton",
"series : series BEGIN_REPEAT_POSIX NUMBER ',' NUMBER END_REPEAT_POSIX",
"series : series BEGIN_REPEAT_POSIX NUMBER ',' END_REPEAT_POSIX",
"series : series BEGIN_REPEAT_POSIX NUMBER END_REPEAT_POSIX",
"singleton : singleton '*'",
"singleton : singleton '+'",
"singleton : singleton '?'",
"singleton : singleton BEGIN_REPEAT_FLEX NUMBER ',' NUMBER END_REPEAT_FLEX",
"singleton : singleton BEGIN_REPEAT_FLEX NUMBER ',' END_REPEAT_FLEX",
"singleton : singleton BEGIN_REPEAT_FLEX NUMBER END_REPEAT_FLEX",
"singleton : '.'",
"singleton : fullccl",
"singleton : PREVCCL",
"singleton : '\"' string '\"'",
"singleton : '(' re ')'",
"singleton : CHAR",
"fullccl : fullccl CCL_OP_DIFF braceccl",
"fullccl : fullccl CCL_OP_UNION braceccl",
"fullccl : braceccl",
"braceccl : '[' ccl ']'",
"braceccl : '[' '^' ccl ']'",
"ccl : ccl CHAR '-' CHAR",
"ccl : ccl CHAR",
"ccl : ccl ccl_expr",
"ccl :",
"ccl_expr : CCE_ALNUM",
"ccl_expr : CCE_ALPHA",
"ccl_expr : CCE_BLANK",
"ccl_expr : CCE_CNTRL",
"ccl_expr : CCE_DIGIT",
"ccl_expr : CCE_GRAPH",
"ccl_expr : CCE_LOWER",
"ccl_expr : CCE_PRINT",
"ccl_expr : CCE_PUNCT",
"ccl_expr : CCE_SPACE",
"ccl_expr : CCE_XDIGIT",
"ccl_expr : CCE_UPPER",
"ccl_expr : CCE_NEG_ALNUM",
"ccl_expr : CCE_NEG_ALPHA",
"ccl_expr : CCE_NEG_BLANK",
"ccl_expr : CCE_NEG_CNTRL",
"ccl_expr : CCE_NEG_DIGIT",
"ccl_expr : CCE_NEG_GRAPH",
"ccl_expr : CCE_NEG_PRINT",
"ccl_expr : CCE_NEG_PUNCT",
"ccl_expr : CCE_NEG_SPACE",
"ccl_expr : CCE_NEG_XDIGIT",
"ccl_expr : CCE_NEG_LOWER",
"ccl_expr : CCE_NEG_UPPER",
"string : string CHAR",
"string :",
};
#endif
#if YYDEBUG
int yydebug;
#endif
int yyerrflag;
int yychar;
YYSTYPE yyval;
YYSTYPE yylval;
int yynerrs;
/* define the initial stack-sizes */
#ifdef YYSTACKSIZE
#undef YYMAXDEPTH
#define YYMAXDEPTH YYSTACKSIZE
#else
#ifdef YYMAXDEPTH
#define YYSTACKSIZE YYMAXDEPTH
#else
#define YYSTACKSIZE 10000
#define YYMAXDEPTH 10000
#endif
#endif
#define YYINITSTACKSIZE 200
typedef struct {
unsigned stacksize;
YYINT *s_base;
YYINT *s_mark;
YYINT *s_last;
YYSTYPE *l_base;
YYSTYPE *l_mark;
} YYSTACKDATA;
/* variables for the parser stack */
static YYSTACKDATA yystack;
#line 950 "parse.y"
/* build_eof_action - build the "<<EOF>>" action for the active start
* conditions
*/
void build_eof_action(void)
{
int i;
char action_text[MAXLINE];
for ( i = 1; i <= scon_stk_ptr; ++i )
{
if ( sceof[scon_stk[i]] )
format_pinpoint_message(
"multiple <<EOF>> rules for start condition %s",
scname[scon_stk[i]] );
else
{
sceof[scon_stk[i]] = true;
if (previous_continued_action /* && previous action was regular */)
add_action("YY_RULE_SETUP\n");
snprintf( action_text, sizeof(action_text), "case YY_STATE_EOF(%s):\n",
scname[scon_stk[i]] );
add_action( action_text );
}
}
line_directive_out(NULL, 1);
add_action("[[");
/* This isn't a normal rule after all - don't count it as
* such, so we don't have any holes in the rule numbering
* (which make generating "rule can never match" warnings
* more difficult.
*/
--num_rules;
++num_eof_rules;
}
/* format_synerr - write out formatted syntax error */
void format_synerr( const char *msg, const char arg[] )
{
char errmsg[MAXLINE];
(void) snprintf( errmsg, sizeof(errmsg), msg, arg );
synerr( errmsg );
}
/* synerr - report a syntax error */
void synerr( const char *str )
{
syntaxerror = true;
pinpoint_message( str );
}
/* format_warn - write out formatted warning */
void format_warn( const char *msg, const char arg[] )
{
char warn_msg[MAXLINE];
snprintf( warn_msg, sizeof(warn_msg), msg, arg );
lwarn( warn_msg );
}
/* lwarn - report a warning, unless -w was given */
void lwarn( const char *str )
{
line_warning( str, linenum );
}
/* format_pinpoint_message - write out a message formatted with one string,
* pinpointing its location
*/
void format_pinpoint_message( const char *msg, const char arg[] )
{
char errmsg[MAXLINE];
snprintf( errmsg, sizeof(errmsg), msg, arg );
pinpoint_message( errmsg );
}
/* pinpoint_message - write out a message, pinpointing its location */
void pinpoint_message( const char *str )
{
line_pinpoint( str, linenum );
}
/* line_warning - report a warning at a given line, unless -w was given */
void line_warning( const char *str, int line )
{
char warning[MAXLINE];
if ( ! nowarn )
{
snprintf( warning, sizeof(warning), "warning, %s", str );
line_pinpoint( warning, line );
}
}
/* line_pinpoint - write out a message, pinpointing it at the given line */
void line_pinpoint( const char *str, int line )
{
fprintf( stderr, "%s:%d: %s\n", infilename, line, str );
}
/* yyerror - eat up an error message from the parser;
* currently, messages are ignore
*/
void yyerror( const char *msg )
{
(void)msg;
}
#line 662 "parse.c"
#if YYDEBUG
#include <stdio.h> /* needed for printf */
#endif
#include <stdlib.h> /* needed for malloc, etc */
#include <string.h> /* needed for memset */
/* allocate initial stack or double stack size, up to YYMAXDEPTH */
static int yygrowstack(YYSTACKDATA *data)
{
int i;
unsigned newsize;
YYINT *newss;
YYSTYPE *newvs;
if ((newsize = data->stacksize) == 0)
newsize = YYINITSTACKSIZE;
else if (newsize >= YYMAXDEPTH)
return YYENOMEM;
else if ((newsize *= 2) > YYMAXDEPTH)
newsize = YYMAXDEPTH;
i = (int) (data->s_mark - data->s_base);
newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss));
if (newss == NULL)
return YYENOMEM;
data->s_base = newss;
data->s_mark = newss + i;
newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));
if (newvs == NULL)
return YYENOMEM;
data->l_base = newvs;
data->l_mark = newvs + i;
data->stacksize = newsize;
data->s_last = data->s_base + newsize - 1;
return 0;
}
#if YYPURE || defined(YY_NO_LEAKS)
static void yyfreestack(YYSTACKDATA *data)
{
free(data->s_base);
free(data->l_base);
memset(data, 0, sizeof(*data));
}
#else
#define yyfreestack(data) /* nothing */
#endif
#define YYABORT goto yyabort
#define YYREJECT goto yyabort
#define YYACCEPT goto yyaccept
#define YYERROR goto yyerrlab
int
YYPARSE_DECL()
{
int yym, yyn, yystate;
#if YYDEBUG
const char *yys;
if ((yys = getenv("YYDEBUG")) != NULL)
{
yyn = *yys;
if (yyn >= '0' && yyn <= '9')
yydebug = yyn - '0';
}
#endif
yym = 0;
yyn = 0;
yynerrs = 0;
yyerrflag = 0;
yychar = YYEMPTY;
yystate = 0;
#if YYPURE
memset(&yystack, 0, sizeof(yystack));
#endif
if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
yystack.s_mark = yystack.s_base;
yystack.l_mark = yystack.l_base;
yystate = 0;
*yystack.s_mark = 0;
yyloop:
if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
if (yychar < 0)
{
yychar = YYLEX;
if (yychar < 0) yychar = YYEOF;
#if YYDEBUG
if (yydebug)
{
if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
printf("%sdebug: state %d, reading %d (%s)\n",
YYPREFIX, yystate, yychar, yys);
}
#endif
}
if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: state %d, shifting to state %d\n",
YYPREFIX, yystate, yytable[yyn]);
#endif
if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
yystate = yytable[yyn];
*++yystack.s_mark = yytable[yyn];
*++yystack.l_mark = yylval;
yychar = YYEMPTY;
if (yyerrflag > 0) --yyerrflag;
goto yyloop;
}
if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
{
yyn = yytable[yyn];
goto yyreduce;
}
if (yyerrflag != 0) goto yyinrecovery;
YYERROR_CALL("syntax error");
goto yyerrlab; /* redundant goto avoids 'unused label' warning */
yyerrlab:
++yynerrs;
yyinrecovery:
if (yyerrflag < 3)
{
yyerrflag = 3;
for (;;)
{
if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE)
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: state %d, error recovery shifting\
to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]);
#endif
if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
yystate = yytable[yyn];
*++yystack.s_mark = yytable[yyn];
*++yystack.l_mark = yylval;
goto yyloop;
}
else
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: error recovery discarding state %d\n",
YYPREFIX, *yystack.s_mark);
#endif
if (yystack.s_mark <= yystack.s_base) goto yyabort;
--yystack.s_mark;
--yystack.l_mark;
}
}
}
else
{
if (yychar == YYEOF) goto yyabort;
#if YYDEBUG
if (yydebug)
{
if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
YYPREFIX, yystate, yychar, yys);
}
#endif
yychar = YYEMPTY;
goto yyloop;
}
yyreduce:
#if YYDEBUG
if (yydebug)
printf("%sdebug: state %d, reducing by rule %d (%s)\n",
YYPREFIX, yystate, yyn, yyrule[yyn]);
#endif
yym = yylen[yyn];
if (yym > 0)
yyval = yystack.l_mark[1-yym];
else
memset(&yyval, 0, sizeof yyval);
switch (yyn)
{
case 1:
#line 119 "parse.y"
{ /* add default rule */
int def_rule;
pat = cclinit();
cclnegate( pat );
def_rule = mkstate( -pat );
/* Remember the number of the default rule so we
* don't generate "can't match" warnings for it.
*/
default_rule = num_rules;
finish_rule( def_rule, false, 0, 0, 0);
for ( i = 1; i <= lastsc; ++i )
scset[i] = mkbranch( scset[i], def_rule );
if ( spprdflt )
add_action(
"YY_FATAL_ERROR( \"flex scanner jammed\" )" );
else
add_action( "ECHO" );
add_action( ";\n\tYY_BREAK]]\n" );
}
break;
case 2:
#line 148 "parse.y"
{ /* initialize for processing rules */
/* Create default DFA start condition. */
scinstal( "INITIAL", false );
}
break;
case 6:
#line 159 "parse.y"
{ synerr( _("unknown error processing section 1") ); }
break;
case 7:
#line 163 "parse.y"
{
check_options();
scon_stk = allocate_integer_array( lastsc + 1 );
scon_stk_ptr = 0;
}
break;
case 8:
#line 171 "parse.y"
{ xcluflg = false; }
break;
case 9:
#line 174 "parse.y"
{ xcluflg = true; }
break;
case 10:
#line 178 "parse.y"
{ scinstal( nmstr, xcluflg ); }
break;
case 11:
#line 181 "parse.y"
{ scinstal( nmstr, xcluflg ); }
break;
case 12:
#line 184 "parse.y"
{ synerr( _("bad start condition list") ); }
break;
case 16:
#line 195 "parse.y"
{
outfilename = xstrdup(nmstr);
did_outfilename = 1;
}
break;
case 17:
#line 200 "parse.y"
{ extra_type = xstrdup(nmstr); }
break;
case 18:
#line 202 "parse.y"
{ prefix = xstrdup(nmstr);
if (strchr(prefix, '[') || strchr(prefix, ']'))
flexerror(_("Prefix must not contain [ or ]")); }
break;
case 19:
#line 206 "parse.y"
{ yyclass = xstrdup(nmstr); }
break;
case 20:
#line 208 "parse.y"
{ headerfilename = xstrdup(nmstr); }
break;
case 21:
#line 210 "parse.y"
{ tablesext = true; tablesfilename = xstrdup(nmstr); }
break;
case 22:
#line 214 "parse.y"
{ scon_stk_ptr = yystack.l_mark[-3]; }
break;
case 23:
#line 216 "parse.y"
{ scon_stk_ptr = yystack.l_mark[-3]; }
break;
case 25:
#line 221 "parse.y"
{
/* Initialize for a parse of one rule. */
trlcontxt = variable_trail_rule = varlength = false;
trailcnt = headcnt = rulelen = 0;
current_state_type = STATE_NORMAL;
previous_continued_action = continued_action;
in_rule = true;
new_rule();
}
break;
case 26:
#line 234 "parse.y"
{
pat = yystack.l_mark[0];
finish_rule( pat, variable_trail_rule,
headcnt, trailcnt , previous_continued_action);
if ( scon_stk_ptr > 0 )
{
for ( i = 1; i <= scon_stk_ptr; ++i )
scbol[scon_stk[i]] =
mkbranch( scbol[scon_stk[i]],
pat );
}
else
{
/* Add to all non-exclusive start conditions,
* including the default (0) start condition.
*/
for ( i = 1; i <= lastsc; ++i )
if ( ! scxclu[i] )
scbol[i] = mkbranch( scbol[i],
pat );
}
if ( ! bol_needed )
{
bol_needed = true;
if ( performance_report > 1 )
pinpoint_message(
"'^' operator results in sub-optimal performance" );
}
}
break;
case 27:
#line 270 "parse.y"
{
pat = yystack.l_mark[0];
finish_rule( pat, variable_trail_rule,
headcnt, trailcnt , previous_continued_action);
if ( scon_stk_ptr > 0 )
{
for ( i = 1; i <= scon_stk_ptr; ++i )
scset[scon_stk[i]] =
mkbranch( scset[scon_stk[i]],
pat );
}
else
{
for ( i = 1; i <= lastsc; ++i )
if ( ! scxclu[i] )
scset[i] =
mkbranch( scset[i],
pat );
}
}
break;
case 28:
#line 294 "parse.y"
{
if ( scon_stk_ptr > 0 )
build_eof_action();
else
{
/* This EOF applies to all start conditions
* which don't already have EOF actions.
*/
for ( i = 1; i <= lastsc; ++i )
if ( ! sceof[i] )
scon_stk[++scon_stk_ptr] = i;
if ( scon_stk_ptr == 0 )
lwarn(
"all start conditions already have <<EOF>> rules" );
else
build_eof_action();
}
}
break;
case 29:
#line 317 "parse.y"
{ synerr( _("unrecognized rule") ); }
break;
case 30:
#line 321 "parse.y"
{ yyval = scon_stk_ptr; }
break;
case 31:
#line 325 "parse.y"
{ yyval = yystack.l_mark[-2]; }
break;
case 32:
#line 328 "parse.y"
{
yyval = scon_stk_ptr;
for ( i = 1; i <= lastsc; ++i )
{
int j;
for ( j = 1; j <= scon_stk_ptr; ++j )
if ( scon_stk[j] == i )
break;
if ( j > scon_stk_ptr )
scon_stk[++scon_stk_ptr] = i;
}
}
break;
case 33:
#line 345 "parse.y"
{ yyval = scon_stk_ptr; }
break;
case 36:
#line 353 "parse.y"
{ synerr( _("bad start condition list") ); }
break;
case 37:
#line 357 "parse.y"
{
if ( (scnum = sclookup( nmstr )) == 0 )
format_pinpoint_message(
"undeclared start condition %s",
nmstr );
else
{
for ( i = 1; i <= scon_stk_ptr; ++i )
if ( scon_stk[i] == scnum )
{
format_warn(
"<%s> specified twice",
scname[scnum] );
break;
}
if ( i > scon_stk_ptr )
scon_stk[++scon_stk_ptr] = scnum;
}
}
break;
case 38:
#line 380 "parse.y"
{
if ( transchar[lastst[yystack.l_mark[0]]] != SYM_EPSILON )
/* Provide final transition \now/ so it
* will be marked as a trailing context
* state.
*/
yystack.l_mark[0] = link_machines( yystack.l_mark[0],
mkstate( SYM_EPSILON ) );
mark_beginning_as_normal( yystack.l_mark[0] );
current_state_type = STATE_NORMAL;
if ( previous_continued_action )
{
/* We need to treat this as variable trailing
* context so that the backup does not happen
* in the action but before the action switch
* statement. If the backup happens in the
* action, then the rules "falling into" this
* one's action will *also* do the backup,
* erroneously.
*/
if ( ! varlength || headcnt != 0 )
lwarn(
"trailing context made variable due to preceding '|' action" );
/* Mark as variable. */
varlength = true;
headcnt = 0;
}
if ( lex_compat || (varlength && headcnt == 0) )
{ /* variable trailing context rule */
/* Mark the first part of the rule as the
* accepting "head" part of a trailing
* context rule.
*
* By the way, we didn't do this at the
* beginning of this production because back
* then current_state_type was set up for a
* trail rule, and add_accept() can create
* a new state ...
*/
add_accept( yystack.l_mark[-1],
num_rules | YY_TRAILING_HEAD_MASK );
variable_trail_rule = true;
}
else
trailcnt = rulelen;
yyval = link_machines( yystack.l_mark[-1], yystack.l_mark[0] );
}
break;
case 39:
#line 436 "parse.y"
{ synerr( _("trailing context used twice") ); }
break;
case 40:
#line 439 "parse.y"
{
headcnt = 0;
trailcnt = 1;
rulelen = 1;
varlength = false;
current_state_type = STATE_TRAILING_CONTEXT;
if ( trlcontxt )
{
synerr( _("trailing context used twice") );
yyval = mkstate( SYM_EPSILON );
}
else if ( previous_continued_action )
{
/* See the comment in the rule for "re2 re"
* above.
*/
lwarn(
"trailing context made variable due to preceding '|' action" );
varlength = true;
}
if ( lex_compat || varlength )
{
/* Again, see the comment in the rule for
* "re2 re" above.
*/
add_accept( yystack.l_mark[-1],
num_rules | YY_TRAILING_HEAD_MASK );
variable_trail_rule = true;
}
trlcontxt = true;
eps = mkstate( SYM_EPSILON );
yyval = link_machines( yystack.l_mark[-1],
link_machines( eps, mkstate( '\n' ) ) );
}
break;
case 41:
#line 482 "parse.y"
{
yyval = yystack.l_mark[0];
if ( trlcontxt )
{
if ( lex_compat || (varlength && headcnt == 0) )
/* Both head and trail are
* variable-length.
*/
variable_trail_rule = true;
else
trailcnt = rulelen;
}
}
break;
case 42:
#line 500 "parse.y"
{
varlength = true;
yyval = mkor( yystack.l_mark[-2], yystack.l_mark[0] );
}
break;
case 43:
#line 506 "parse.y"
{ yyval = yystack.l_mark[0]; }
break;
case 44:
#line 511 "parse.y"
{
/* This rule is written separately so the
* reduction will occur before the trailing
* series is parsed.
*/
if ( trlcontxt )
synerr( _("trailing context used twice") );
else
trlcontxt = true;
if ( varlength )
/* We hope the trailing context is
* fixed-length.
*/
varlength = false;
else
headcnt = rulelen;
rulelen = 0;
current_state_type = STATE_TRAILING_CONTEXT;
yyval = yystack.l_mark[-1];
}
break;
case 45:
#line 538 "parse.y"
{
/* This is where concatenation of adjacent patterns
* gets done.
*/
yyval = link_machines( yystack.l_mark[-1], yystack.l_mark[0] );
}
break;
case 46:
#line 546 "parse.y"
{ yyval = yystack.l_mark[0]; }
break;
case 47:
#line 549 "parse.y"
{
varlength = true;
if ( yystack.l_mark[-3] > yystack.l_mark[-1] || yystack.l_mark[-3] < 0 )
{
synerr( _("bad iteration values") );
yyval = yystack.l_mark[-5];
}
else
{
if ( yystack.l_mark[-3] == 0 )
{
if ( yystack.l_mark[-1] <= 0 )
{
synerr(
_("bad iteration values") );
yyval = yystack.l_mark[-5];
}
else
yyval = mkopt(
mkrep( yystack.l_mark[-5], 1, yystack.l_mark[-1] ) );
}
else
yyval = mkrep( yystack.l_mark[-5], yystack.l_mark[-3], yystack.l_mark[-1] );
}
}
break;
case 48:
#line 577 "parse.y"
{
varlength = true;
if ( yystack.l_mark[-2] <= 0 )
{
synerr( _("iteration value must be positive") );
yyval = yystack.l_mark[-4];
}
else
yyval = mkrep( yystack.l_mark[-4], yystack.l_mark[-2], INFINITE_REPEAT );
}
break;
case 49:
#line 591 "parse.y"
{
/* The series could be something like "(foo)",
* in which case we have no idea what its length
* is, so we punt here.
*/
varlength = true;
if ( yystack.l_mark[-1] <= 0 )
{
synerr( _("iteration value must be positive")
);
yyval = yystack.l_mark[-3];
}
else
yyval = link_machines( yystack.l_mark[-3],
copysingl( yystack.l_mark[-3], yystack.l_mark[-1] - 1 ) );
}
break;
case 50:
#line 613 "parse.y"
{
varlength = true;
yyval = mkclos( yystack.l_mark[-1] );
}
break;
case 51:
#line 620 "parse.y"
{
varlength = true;
yyval = mkposcl( yystack.l_mark[-1] );
}
break;
case 52:
#line 626 "parse.y"
{
varlength = true;
yyval = mkopt( yystack.l_mark[-1] );
}
break;
case 53:
#line 632 "parse.y"
{
varlength = true;
if ( yystack.l_mark[-3] > yystack.l_mark[-1] || yystack.l_mark[-3] < 0 )
{
synerr( _("bad iteration values") );
yyval = yystack.l_mark[-5];
}
else
{
if ( yystack.l_mark[-3] == 0 )
{
if ( yystack.l_mark[-1] <= 0 )
{
synerr(
_("bad iteration values") );
yyval = yystack.l_mark[-5];
}
else
yyval = mkopt(
mkrep( yystack.l_mark[-5], 1, yystack.l_mark[-1] ) );
}
else
yyval = mkrep( yystack.l_mark[-5], yystack.l_mark[-3], yystack.l_mark[-1] );
}
}
break;
case 54:
#line 660 "parse.y"
{
varlength = true;
if ( yystack.l_mark[-2] <= 0 )
{
synerr( _("iteration value must be positive") );
yyval = yystack.l_mark[-4];
}
else
yyval = mkrep( yystack.l_mark[-4], yystack.l_mark[-2], INFINITE_REPEAT );
}
break;
case 55:
#line 674 "parse.y"
{
/* The singleton could be something like "(foo)",
* in which case we have no idea what its length
* is, so we punt here.
*/
varlength = true;
if ( yystack.l_mark[-1] <= 0 )
{
synerr( _("iteration value must be positive") );
yyval = yystack.l_mark[-3];
}
else
yyval = link_machines( yystack.l_mark[-3],
copysingl( yystack.l_mark[-3], yystack.l_mark[-1] - 1 ) );
}
break;
case 56:
#line 693 "parse.y"
{
if ( ! madeany )
{
/* Create the '.' character class. */
ccldot = cclinit();
ccladd( ccldot, '\n' );
cclnegate( ccldot );
if ( useecs )
mkeccl( ccltbl + cclmap[ccldot],
ccllen[ccldot], nextecm,
ecgroup, csize, csize );
/* Create the (?s:'.') character class. */
cclany = cclinit();
cclnegate( cclany );
if ( useecs )
mkeccl( ccltbl + cclmap[cclany],
ccllen[cclany], nextecm,
ecgroup, csize, csize );
madeany = true;
}
++rulelen;
if (sf_dot_all())
yyval = mkstate( -cclany );
else
yyval = mkstate( -ccldot );
}
break;
case 57:
#line 727 "parse.y"
{
/* Sort characters for fast searching.
*/
qsort( ccltbl + cclmap[yystack.l_mark[0]], (size_t) ccllen[yystack.l_mark[0]], sizeof (*ccltbl), cclcmp );
if ( useecs )
mkeccl( ccltbl + cclmap[yystack.l_mark[0]], ccllen[yystack.l_mark[0]],
nextecm, ecgroup, csize, csize );
++rulelen;
if (ccl_has_nl[yystack.l_mark[0]])
rule_has_nl[num_rules] = true;
yyval = mkstate( -yystack.l_mark[0] );
}
break;
case 58:
#line 745 "parse.y"
{
++rulelen;
if (ccl_has_nl[yystack.l_mark[0]])
rule_has_nl[num_rules] = true;
yyval = mkstate( -yystack.l_mark[0] );
}
break;
case 59:
#line 755 "parse.y"
{ yyval = yystack.l_mark[-1]; }
break;
case 60:
#line 758 "parse.y"
{ yyval = yystack.l_mark[-1]; }
break;
case 61:
#line 761 "parse.y"
{
++rulelen;
if (yystack.l_mark[0] == nlch)
rule_has_nl[num_rules] = true;
if (sf_case_ins() && has_case(yystack.l_mark[0]))
/* create an alternation, as in (a|A) */
yyval = mkor (mkstate(yystack.l_mark[0]), mkstate(reverse_case(yystack.l_mark[0])));
else
yyval = mkstate( yystack.l_mark[0] );
}
break;
case 62:
#line 775 "parse.y"
{ yyval = ccl_set_diff (yystack.l_mark[-2], yystack.l_mark[0]); }
break;
case 63:
#line 776 "parse.y"
{ yyval = ccl_set_union (yystack.l_mark[-2], yystack.l_mark[0]); }
break;
case 65:
#line 782 "parse.y"
{ yyval = yystack.l_mark[-1]; }
break;
case 66:
#line 785 "parse.y"
{
cclnegate( yystack.l_mark[-1] );
yyval = yystack.l_mark[-1];
}
break;
case 67:
#line 792 "parse.y"
{
if (sf_case_ins())
{
/* If one end of the range has case and the other
* does not, or the cases are different, then we're not
* sure what range the user is trying to express.
* Examples: [@-z] or [S-t]
*/
if (has_case (yystack.l_mark[-2]) != has_case (yystack.l_mark[0])
|| (has_case (yystack.l_mark[-2]) && (b_islower (yystack.l_mark[-2]) != b_islower (yystack.l_mark[0])))
|| (has_case (yystack.l_mark[-2]) && (b_isupper (yystack.l_mark[-2]) != b_isupper (yystack.l_mark[0]))))
format_warn3 (
_("the character range [%c-%c] is ambiguous in a case-insensitive scanner"),
yystack.l_mark[-2], yystack.l_mark[0]);
/* If the range spans uppercase characters but not
* lowercase (or vice-versa), then should we automatically
* include lowercase characters in the range?
* Example: [@-_] spans [a-z] but not [A-Z]
*/
else if (!has_case (yystack.l_mark[-2]) && !has_case (yystack.l_mark[0]) && !range_covers_case (yystack.l_mark[-2], yystack.l_mark[0]))
format_warn3 (
_("the character range [%c-%c] is ambiguous in a case-insensitive scanner"),
yystack.l_mark[-2], yystack.l_mark[0]);
}
if ( yystack.l_mark[-2] > yystack.l_mark[0] )
synerr( _("negative range in character class") );
else
{
for ( i = yystack.l_mark[-2]; i <= yystack.l_mark[0]; ++i )
ccladd( yystack.l_mark[-3], i );
/* Keep track if this ccl is staying in
* alphabetical order.
*/
cclsorted = cclsorted && (yystack.l_mark[-2] > lastchar);
lastchar = yystack.l_mark[0];
/* Do it again for upper/lowercase */
if (sf_case_ins() && has_case(yystack.l_mark[-2]) && has_case(yystack.l_mark[0])){
yystack.l_mark[-2] = reverse_case (yystack.l_mark[-2]);
yystack.l_mark[0] = reverse_case (yystack.l_mark[0]);
for ( i = yystack.l_mark[-2]; i <= yystack.l_mark[0]; ++i )
ccladd( yystack.l_mark[-3], i );
cclsorted = cclsorted && (yystack.l_mark[-2] > lastchar);
lastchar = yystack.l_mark[0];
}
}
yyval = yystack.l_mark[-3];
}
break;
case 68:
#line 852 "parse.y"
{
ccladd( yystack.l_mark[-1], yystack.l_mark[0] );
cclsorted = cclsorted && (yystack.l_mark[0] > lastchar);
lastchar = yystack.l_mark[0];
/* Do it again for upper/lowercase */
if (sf_case_ins() && has_case(yystack.l_mark[0])){
yystack.l_mark[0] = reverse_case (yystack.l_mark[0]);
ccladd (yystack.l_mark[-1], yystack.l_mark[0]);
cclsorted = cclsorted && (yystack.l_mark[0] > lastchar);
lastchar = yystack.l_mark[0];
}
yyval = yystack.l_mark[-1];
}
break;
case 69:
#line 870 "parse.y"
{
/* Too hard to properly maintain cclsorted. */
cclsorted = false;
yyval = yystack.l_mark[-1];
}
break;
case 70:
#line 877 "parse.y"
{
cclsorted = true;
lastchar = 0;
currccl = yyval = cclinit();
}
break;
case 71:
#line 885 "parse.y"
{ CCL_EXPR(isalnum); }
break;
case 72:
#line 886 "parse.y"
{ CCL_EXPR(isalpha); }
break;
case 73:
#line 887 "parse.y"
{ CCL_EXPR(IS_BLANK); }
break;
case 74:
#line 888 "parse.y"
{ CCL_EXPR(iscntrl); }
break;
case 75:
#line 889 "parse.y"
{ CCL_EXPR(isdigit); }
break;
case 76:
#line 890 "parse.y"
{ CCL_EXPR(isgraph); }
break;
case 77:
#line 891 "parse.y"
{
CCL_EXPR(islower);
if (sf_case_ins())
CCL_EXPR(isupper);
}
break;
case 78:
#line 896 "parse.y"
{ CCL_EXPR(isprint); }
break;
case 79:
#line 897 "parse.y"
{ CCL_EXPR(ispunct); }
break;
case 80:
#line 898 "parse.y"
{ CCL_EXPR(isspace); }
break;
case 81:
#line 899 "parse.y"
{ CCL_EXPR(isxdigit); }
break;
case 82:
#line 900 "parse.y"
{
CCL_EXPR(isupper);
if (sf_case_ins())
CCL_EXPR(islower);
}
break;
case 83:
#line 906 "parse.y"
{ CCL_NEG_EXPR(isalnum); }
break;
case 84:
#line 907 "parse.y"
{ CCL_NEG_EXPR(isalpha); }
break;
case 85:
#line 908 "parse.y"
{ CCL_NEG_EXPR(IS_BLANK); }
break;
case 86:
#line 909 "parse.y"
{ CCL_NEG_EXPR(iscntrl); }
break;
case 87:
#line 910 "parse.y"
{ CCL_NEG_EXPR(isdigit); }
break;
case 88:
#line 911 "parse.y"
{ CCL_NEG_EXPR(isgraph); }
break;
case 89:
#line 912 "parse.y"
{ CCL_NEG_EXPR(isprint); }
break;
case 90:
#line 913 "parse.y"
{ CCL_NEG_EXPR(ispunct); }
break;
case 91:
#line 914 "parse.y"
{ CCL_NEG_EXPR(isspace); }
break;
case 92:
#line 915 "parse.y"
{ CCL_NEG_EXPR(isxdigit); }
break;
case 93:
#line 916 "parse.y"
{
if ( sf_case_ins() )
lwarn(_("[:^lower:] is ambiguous in case insensitive scanner"));
else
CCL_NEG_EXPR(islower);
}
break;
case 94:
#line 922 "parse.y"
{
if ( sf_case_ins() )
lwarn(_("[:^upper:] ambiguous in case insensitive scanner"));
else
CCL_NEG_EXPR(isupper);
}
break;
case 95:
#line 931 "parse.y"
{
if ( yystack.l_mark[0] == nlch )
rule_has_nl[num_rules] = true;
++rulelen;
if (sf_case_ins() && has_case(yystack.l_mark[0]))
yyval = mkor (mkstate(yystack.l_mark[0]), mkstate(reverse_case(yystack.l_mark[0])));
else
yyval = mkstate (yystack.l_mark[0]);
yyval = link_machines( yystack.l_mark[-1], yyval);
}
break;
case 96:
#line 946 "parse.y"
{ yyval = mkstate( SYM_EPSILON ); }
break;
#line 1788 "parse.c"
}
yystack.s_mark -= yym;
yystate = *yystack.s_mark;
yystack.l_mark -= yym;
yym = yylhs[yyn];
if (yystate == 0 && yym == 0)
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: after reduction, shifting from state 0 to\
state %d\n", YYPREFIX, YYFINAL);
#endif
yystate = YYFINAL;
*++yystack.s_mark = YYFINAL;
*++yystack.l_mark = yyval;
if (yychar < 0)
{
yychar = YYLEX;
if (yychar < 0) yychar = YYEOF;
#if YYDEBUG
if (yydebug)
{
if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
printf("%sdebug: state %d, reading %d (%s)\n",
YYPREFIX, YYFINAL, yychar, yys);
}
#endif
}
if (yychar == YYEOF) goto yyaccept;
goto yyloop;
}
if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate)
yystate = yytable[yyn];
else
yystate = yydgoto[yym];
#if YYDEBUG
if (yydebug)
printf("%sdebug: after reduction, shifting from state %d \
to state %d\n", YYPREFIX, *yystack.s_mark, yystate);
#endif
if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
*++yystack.s_mark = (YYINT) yystate;
*++yystack.l_mark = yyval;
goto yyloop;
yyoverflow:
YYERROR_CALL("yacc stack overflow");
yyabort:
yyfreestack(&yystack);
return (1);
yyaccept:
yyfreestack(&yystack);
return (0);
}
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