1850 lines
48 KiB
C
1850 lines
48 KiB
C
/* $FreeBSD$ */
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#ifndef lint
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static const char yysccsid[] = "@(#)yaccpar 1.9 (Berkeley) 02/21/93";
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#endif
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#define YYBYACC 1
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#define YYMAJOR 1
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#define YYMINOR 9
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#define YYEMPTY (-1)
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#define yyclearin (yychar = YYEMPTY)
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#define yyerrok (yyerrflag = 0)
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#define YYRECOVERING() (yyerrflag != 0)
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#define YYPREFIX "yy"
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#define YYPURE 0
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#line 35 "parse.y"
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/* Copyright (c) 1990 The Regents of the University of California. */
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/* All rights reserved. */
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/* This code is derived from software contributed to Berkeley by */
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/* Vern Paxson. */
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/* The United States Government has rights in this work pursuant */
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/* to contract no. DE-AC03-76SF00098 between the United States */
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/* Department of Energy and the University of California. */
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/* This file is part of flex. */
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/* Redistribution and use in source and binary forms, with or without */
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/* modification, are permitted provided that the following conditions */
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/* are met: */
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/* 1. Redistributions of source code must retain the above copyright */
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/* notice, this list of conditions and the following disclaimer. */
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/* 2. Redistributions in binary form must reproduce the above copyright */
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/* notice, this list of conditions and the following disclaimer in the */
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/* documentation and/or other materials provided with the distribution. */
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/* Neither the name of the University nor the names of its contributors */
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/* may be used to endorse or promote products derived from this software */
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/* without specific prior written permission. */
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/* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR */
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/* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED */
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/* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR */
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/* PURPOSE. */
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#include "flexdef.h"
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#include "tables.h"
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int pat, scnum, eps, headcnt, trailcnt, lastchar, i, rulelen;
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int trlcontxt, xcluflg, currccl, cclsorted, varlength, variable_trail_rule;
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int *scon_stk;
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int scon_stk_ptr;
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static int madeany = false; /* whether we've made the '.' character class */
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static int ccldot, cclany;
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int previous_continued_action; /* whether the previous rule's action was '|' */
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#define format_warn3(fmt, a1, a2) \
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do{ \
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char fw3_msg[MAXLINE];\
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snprintf( fw3_msg, MAXLINE,(fmt), (a1), (a2) );\
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warn( fw3_msg );\
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}while(0)
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/* Expand a POSIX character class expression. */
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#define CCL_EXPR(func) \
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do{ \
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int c; \
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for ( c = 0; c < csize; ++c ) \
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if ( isascii(c) && func(c) ) \
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ccladd( currccl, c ); \
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}while(0)
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/* negated class */
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#define CCL_NEG_EXPR(func) \
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do{ \
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int c; \
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for ( c = 0; c < csize; ++c ) \
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if ( !func(c) ) \
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ccladd( currccl, c ); \
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}while(0)
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/* While POSIX defines isblank(), it's not ANSI C. */
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#define IS_BLANK(c) ((c) == ' ' || (c) == '\t')
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/* On some over-ambitious machines, such as DEC Alpha's, the default
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* token type is "long" instead of "int"; this leads to problems with
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* declaring yylval in flexdef.h. But so far, all the yacc's I've seen
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* wrap their definitions of YYSTYPE with "#ifndef YYSTYPE"'s, so the
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* following should ensure that the default token type is "int".
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*/
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#define YYSTYPE int
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#line 99 "parse.c"
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#ifndef YYSTYPE
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typedef int YYSTYPE;
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#endif
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/* compatibility with bison */
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#ifdef YYPARSE_PARAM
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/* compatibility with FreeBSD */
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# ifdef YYPARSE_PARAM_TYPE
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# define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM)
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# else
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# define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM)
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# endif
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#else
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# define YYPARSE_DECL() yyparse(void)
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#endif
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/* Parameters sent to lex. */
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#ifdef YYLEX_PARAM
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# define YYLEX_DECL() yylex(void *YYLEX_PARAM)
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# define YYLEX yylex(YYLEX_PARAM)
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#else
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# define YYLEX_DECL() yylex(void)
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# define YYLEX yylex()
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#endif
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/* Parameters sent to yyerror. */
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#ifndef YYERROR_DECL
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#define YYERROR_DECL() yyerror(const char *s)
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#endif
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#ifndef YYERROR_CALL
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#define YYERROR_CALL(msg) yyerror(msg)
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#endif
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extern int YYPARSE_DECL();
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#define CHAR 257
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#define NUMBER 258
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#define SECTEND 259
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#define SCDECL 260
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#define XSCDECL 261
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#define NAME 262
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#define PREVCCL 263
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#define EOF_OP 264
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#define OPTION_OP 265
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#define OPT_OUTFILE 266
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#define OPT_PREFIX 267
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#define OPT_YYCLASS 268
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#define OPT_HEADER 269
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#define OPT_EXTRA_TYPE 270
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#define OPT_TABLES 271
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#define CCE_ALNUM 272
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#define CCE_ALPHA 273
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#define CCE_BLANK 274
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#define CCE_CNTRL 275
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#define CCE_DIGIT 276
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#define CCE_GRAPH 277
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#define CCE_LOWER 278
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#define CCE_PRINT 279
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#define CCE_PUNCT 280
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#define CCE_SPACE 281
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#define CCE_UPPER 282
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#define CCE_XDIGIT 283
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#define CCE_NEG_ALNUM 284
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#define CCE_NEG_ALPHA 285
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#define CCE_NEG_BLANK 286
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#define CCE_NEG_CNTRL 287
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#define CCE_NEG_DIGIT 288
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#define CCE_NEG_GRAPH 289
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#define CCE_NEG_LOWER 290
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#define CCE_NEG_PRINT 291
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#define CCE_NEG_PUNCT 292
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#define CCE_NEG_SPACE 293
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#define CCE_NEG_UPPER 294
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#define CCE_NEG_XDIGIT 295
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#define CCL_OP_DIFF 296
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#define CCL_OP_UNION 297
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#define BEGIN_REPEAT_POSIX 298
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#define END_REPEAT_POSIX 299
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#define BEGIN_REPEAT_FLEX 300
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#define END_REPEAT_FLEX 301
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#define YYERRCODE 256
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static const short yylhs[] = { -1,
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0, 1, 2, 2, 2, 2, 3, 6, 6, 7,
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7, 7, 8, 9, 9, 10, 10, 10, 10, 10,
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10, 4, 4, 4, 5, 12, 12, 12, 12, 14,
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11, 11, 11, 15, 15, 15, 16, 13, 13, 13,
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13, 18, 18, 17, 19, 19, 19, 19, 19, 20,
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20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
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20, 21, 21, 21, 23, 23, 24, 24, 24, 24,
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25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
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25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
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25, 25, 25, 25, 22, 22,
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};
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static const short yylen[] = { 2,
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5, 0, 3, 2, 0, 1, 1, 1, 1, 2,
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1, 1, 2, 2, 0, 3, 3, 3, 3, 3,
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3, 5, 5, 0, 0, 2, 1, 1, 1, 0,
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4, 3, 0, 3, 1, 1, 1, 2, 3, 2,
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1, 3, 1, 2, 2, 1, 6, 5, 4, 2,
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2, 2, 6, 5, 4, 1, 1, 1, 3, 3,
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1, 3, 3, 1, 3, 4, 4, 2, 2, 0,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 2, 0,
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};
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static const short yydefred[] = { 2,
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0, 0, 6, 0, 7, 8, 9, 15, 24, 0,
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4, 0, 0, 12, 11, 0, 0, 0, 0, 0,
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0, 0, 14, 0, 1, 0, 10, 0, 0, 0,
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0, 0, 0, 0, 0, 24, 0, 16, 18, 19,
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20, 17, 21, 32, 36, 37, 0, 35, 0, 29,
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61, 58, 28, 0, 56, 96, 0, 0, 0, 27,
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0, 0, 0, 0, 0, 64, 31, 0, 23, 26,
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0, 0, 70, 0, 22, 0, 40, 0, 44, 0,
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0, 0, 50, 51, 52, 0, 0, 34, 95, 59,
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60, 0, 0, 71, 72, 73, 74, 75, 76, 77,
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78, 79, 80, 82, 81, 83, 84, 85, 86, 87,
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88, 93, 89, 90, 91, 94, 92, 65, 69, 39,
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0, 0, 0, 62, 63, 66, 0, 49, 0, 55,
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0, 67, 0, 48, 0, 54, 47, 53,
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};
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static const short yydgoto[] = { 1,
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2, 4, 9, 13, 25, 10, 16, 11, 12, 23,
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26, 59, 60, 35, 47, 48, 61, 62, 63, 64,
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65, 71, 66, 74, 119,
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};
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static const short yysindex[] = { 0,
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0, -222, 0, -155, 0, 0, 0, 0, 0, -215,
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0, -123, 6, 0, 0, -193, 10, 21, 26, 31,
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35, 37, 0, 59, 0, -44, 0, -147, -145, -140,
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-133, -132, -129, 75, -214, 0, -19, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 23, 0, -48, 0,
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0, 0, 0, -17, 0, 0, -17, 27, 128, 0,
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-17, -1, -30, -41, -189, 0, 0, -121, 0, 0,
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-31, -34, 0, -87, 0, -25, 0, -17, 0, -109,
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-41, -108, 0, 0, 0, 60, 60, 0, 0, 0,
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0, 46, 107, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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-30, -36, -39, 0, 0, 0, -104, 0, -219, 0,
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-238, 0, -144, 0, -143, 0, 0, 0,
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};
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static const short yyrindex[] = { 0,
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0, -141, 0, 0, 0, 0, 0, 0, 0, 0,
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0, -134, 9, 0, 0, -125, 0, 0, 0, 0,
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0, 0, 0, -178, 0, 22, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, -21, 0,
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0, 0, 0, 0, 0, 0, 0, 85, 0, 0,
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0, 144, 47, 4, -10, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 146, 0, 0, 0, 0,
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18, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 124, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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50, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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};
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static const short yygindex[] = { 0,
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0, 0, 0, 121, 133, 0, 0, 0, 0, 0,
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0, 0, 106, 0, 0, 93, 0, 32, 84, -45,
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0, 0, 25, 90, 0,
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};
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#define YYTABLESIZE 419
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static const short yytable[] = { 57,
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83, 84, 90, 56, 131, 118, 91, 129, 25, 57,
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120, 24, 33, 46, 56, 55, 56, 81, 33, 135,
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57, 85, 57, 57, 33, 57, 55, 45, 55, 57,
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57, 57, 57, 3, 77, 57, 57, 46, 133, 46,
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14, 45, 33, 46, 46, 79, 15, 46, 33, 46,
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46, 45, 57, 45, 33, 25, 43, 45, 45, 42,
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58, 25, 136, 45, 45, 24, 68, 25, 27, 33,
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28, 58, 33, 58, 54, 81, 69, 30, 36, 134,
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57, 29, 43, 30, 67, 42, 30, 43, 72, 78,
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42, 31, 76, 43, 46, 32, 42, 33, 78, 33,
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34, 33, 33, 5, 6, 7, 86, 87, 45, 8,
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124, 125, 25, 57, 38, 25, 39, 5, 5, 5,
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73, 40, 78, 5, 13, 13, 13, 46, 41, 42,
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13, 33, 43, 3, 3, 3, 44, 75, 126, 3,
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46, 45, 17, 18, 19, 20, 21, 22, 122, 123,
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58, 127, 132, 41, 137, 38, 49, 138, 37, 70,
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88, 121, 92, 0, 0, 0, 0, 0, 0, 93,
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43, 0, 0, 42, 0, 0, 0, 70, 0, 0,
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0, 0, 0, 0, 94, 95, 96, 97, 98, 99,
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100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
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110, 111, 112, 113, 114, 115, 116, 117, 0, 0,
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0, 0, 0, 0, 0, 0, 68, 0, 0, 0,
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0, 0, 0, 0, 0, 89, 51, 0, 0, 0,
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0, 0, 52, 0, 33, 33, 50, 51, 0, 51,
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0, 33, 33, 52, 53, 52, 57, 0, 0, 0,
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0, 0, 57, 0, 0, 0, 0, 0, 82, 0,
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46, 130, 128, 0, 33, 33, 46, 80, 0, 0,
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0, 33, 33, 0, 45, 0, 0, 25, 25, 0,
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45, 0, 0, 0, 25, 25, 0, 57, 0, 57,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 46, 93, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 45, 0, 94, 95, 96,
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97, 98, 99, 100, 101, 102, 103, 104, 105, 106,
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107, 108, 109, 110, 111, 112, 113, 114, 115, 116,
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117, 70, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 70, 70, 70, 70,
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70, 70, 70, 70, 70, 70, 70, 70, 70, 70,
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70, 70, 70, 70, 70, 70, 70, 70, 70, 70,
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68, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 68, 68, 68, 68, 68,
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68, 68, 68, 68, 68, 68, 68, 68, 68, 68,
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68, 68, 68, 68, 68, 68, 68, 68, 68,
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};
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static const short yycheck[] = { 10,
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42, 43, 34, 34, 44, 93, 41, 44, 0, 40,
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36, 60, 34, 10, 34, 46, 34, 63, 40, 258,
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40, 63, 40, 34, 46, 36, 46, 10, 46, 40,
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41, 42, 43, 256, 36, 46, 47, 34, 258, 36,
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256, 256, 34, 40, 41, 47, 262, 262, 40, 46,
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47, 34, 63, 36, 46, 34, 10, 40, 41, 10,
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91, 40, 301, 46, 47, 60, 44, 46, 262, 91,
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61, 91, 94, 91, 94, 121, 125, 256, 123, 299,
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91, 61, 36, 262, 62, 36, 61, 41, 57, 124,
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41, 61, 61, 47, 91, 61, 47, 61, 124, 91,
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42, 123, 94, 259, 260, 261, 296, 297, 91, 265,
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86, 87, 91, 124, 262, 94, 262, 259, 260, 261,
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94, 262, 124, 265, 259, 260, 261, 124, 262, 262,
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265, 123, 262, 259, 260, 261, 62, 10, 93, 265,
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262, 124, 266, 267, 268, 269, 270, 271, 258, 258,
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91, 45, 257, 10, 299, 10, 36, 301, 26, 54,
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68, 78, 73, -1, -1, -1, -1, -1, -1, 257,
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124, -1, -1, 124, -1, -1, -1, 93, -1, -1,
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-1, -1, -1, -1, 272, 273, 274, 275, 276, 277,
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|
278, 279, 280, 281, 282, 283, 284, 285, 286, 287,
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|
288, 289, 290, 291, 292, 293, 294, 295, -1, -1,
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|
-1, -1, -1, -1, -1, -1, 93, -1, -1, -1,
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|
-1, -1, -1, -1, -1, 257, 257, -1, -1, -1,
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|
-1, -1, 263, -1, 256, 257, 256, 257, -1, 257,
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|
-1, 263, 264, 263, 264, 263, 257, -1, -1, -1,
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|
-1, -1, 263, -1, -1, -1, -1, -1, 300, -1,
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|
257, 301, 299, -1, 256, 257, 263, 298, -1, -1,
|
|
-1, 263, 264, -1, 257, -1, -1, 256, 257, -1,
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|
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,
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|
275, 276, 277, 278, 279, 280, 281, 282, 283, 284,
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|
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,
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|
276, 277, 278, 279, 280, 281, 282, 283, 284, 285,
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|
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,
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|
277, 278, 279, 280, 281, 282, 283, 284, 285, 286,
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|
287, 288, 289, 290, 291, 292, 293, 294, 295,
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};
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#define YYFINAL 1
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#ifndef YYDEBUG
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#define YYDEBUG 0
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#endif
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#define YYMAXTOKEN 301
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#if YYDEBUG
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static const char *yyname[] = {
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"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,
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|
0,0,0,"'\"'",0,"'$'",0,0,0,"'('","')'","'*'","'+'","','","'-'","'.'","'/'",0,0,
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|
0,0,0,0,0,0,0,0,0,0,"'<'","'='","'>'","'?'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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|
0,0,0,0,0,0,0,0,0,"'['",0,"']'","'^'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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|
0,0,0,0,0,0,0,"'{'","'|'","'}'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"CHAR","NUMBER","SECTEND",
|
|
"SCDECL","XSCDECL","NAME","PREVCCL","EOF_OP","OPTION_OP","OPT_OUTFILE",
|
|
"OPT_PREFIX","OPT_YYCLASS","OPT_HEADER","OPT_EXTRA_TYPE","OPT_TABLES",
|
|
"CCE_ALNUM","CCE_ALPHA","CCE_BLANK","CCE_CNTRL","CCE_DIGIT","CCE_GRAPH",
|
|
"CCE_LOWER","CCE_PRINT","CCE_PUNCT","CCE_SPACE","CCE_UPPER","CCE_XDIGIT",
|
|
"CCE_NEG_ALNUM","CCE_NEG_ALPHA","CCE_NEG_BLANK","CCE_NEG_CNTRL","CCE_NEG_DIGIT",
|
|
"CCE_NEG_GRAPH","CCE_NEG_LOWER","CCE_NEG_PRINT","CCE_NEG_PUNCT","CCE_NEG_SPACE",
|
|
"CCE_NEG_UPPER","CCE_NEG_XDIGIT","CCL_OP_DIFF","CCL_OP_UNION",
|
|
"BEGIN_REPEAT_POSIX","END_REPEAT_POSIX","BEGIN_REPEAT_FLEX","END_REPEAT_FLEX",
|
|
};
|
|
static const char *yyrule[] = {
|
|
"$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 : OPTION_OP optionlist",
|
|
"optionlist : optionlist option",
|
|
"optionlist :",
|
|
"option : OPT_OUTFILE '=' NAME",
|
|
"option : OPT_EXTRA_TYPE '=' NAME",
|
|
"option : OPT_PREFIX '=' NAME",
|
|
"option : OPT_YYCLASS '=' NAME",
|
|
"option : OPT_HEADER '=' NAME",
|
|
"option : OPT_TABLES '=' 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
|
|
|
|
int yydebug;
|
|
int yynerrs;
|
|
|
|
int yyerrflag;
|
|
int yychar;
|
|
YYSTYPE yyval;
|
|
YYSTYPE yylval;
|
|
|
|
/* define the initial stack-sizes */
|
|
#ifdef YYSTACKSIZE
|
|
#undef YYMAXDEPTH
|
|
#define YYMAXDEPTH YYSTACKSIZE
|
|
#else
|
|
#ifdef YYMAXDEPTH
|
|
#define YYSTACKSIZE YYMAXDEPTH
|
|
#else
|
|
#define YYSTACKSIZE 500
|
|
#define YYMAXDEPTH 500
|
|
#endif
|
|
#endif
|
|
|
|
#define YYINITSTACKSIZE 500
|
|
|
|
typedef struct {
|
|
unsigned stacksize;
|
|
short *s_base;
|
|
short *s_mark;
|
|
short *s_last;
|
|
YYSTYPE *l_base;
|
|
YYSTYPE *l_mark;
|
|
} YYSTACKDATA;
|
|
/* variables for the parser stack */
|
|
static YYSTACKDATA yystack;
|
|
#line 948 "parse.y"
|
|
|
|
|
|
/* build_eof_action - build the "<<EOF>>" action for the active start
|
|
* conditions
|
|
*/
|
|
|
|
void build_eof_action()
|
|
{
|
|
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( (FILE *) 0, 1 );
|
|
|
|
/* 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( msg, arg )
|
|
const char *msg, arg[];
|
|
{
|
|
char errmsg[MAXLINE];
|
|
|
|
(void) snprintf( errmsg, sizeof(errmsg), msg, arg );
|
|
synerr( errmsg );
|
|
}
|
|
|
|
|
|
/* synerr - report a syntax error */
|
|
|
|
void synerr( str )
|
|
const char *str;
|
|
{
|
|
syntaxerror = true;
|
|
pinpoint_message( str );
|
|
}
|
|
|
|
|
|
/* format_warn - write out formatted warning */
|
|
|
|
void format_warn( msg, arg )
|
|
const char *msg, arg[];
|
|
{
|
|
char warn_msg[MAXLINE];
|
|
|
|
snprintf( warn_msg, sizeof(warn_msg), msg, arg );
|
|
warn( warn_msg );
|
|
}
|
|
|
|
|
|
/* warn - report a warning, unless -w was given */
|
|
|
|
void warn( str )
|
|
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( msg, arg )
|
|
const char *msg, 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( str )
|
|
const char *str;
|
|
{
|
|
line_pinpoint( str, linenum );
|
|
}
|
|
|
|
|
|
/* line_warning - report a warning at a given line, unless -w was given */
|
|
|
|
void line_warning( str, line )
|
|
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( str, line )
|
|
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( msg )
|
|
const char *msg;
|
|
{
|
|
}
|
|
#line 656 "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;
|
|
short *newss;
|
|
YYSTYPE *newvs;
|
|
|
|
if ((newsize = data->stacksize) == 0)
|
|
newsize = YYINITSTACKSIZE;
|
|
else if (newsize >= YYMAXDEPTH)
|
|
return -1;
|
|
else if ((newsize *= 2) > YYMAXDEPTH)
|
|
newsize = YYMAXDEPTH;
|
|
|
|
i = data->s_mark - data->s_base;
|
|
newss = (short *)realloc(data->s_base, newsize * sizeof(*newss));
|
|
if (newss == NULL)
|
|
return -1;
|
|
|
|
data->s_base = newss;
|
|
data->s_mark = newss + i;
|
|
|
|
newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));
|
|
if (newvs == NULL)
|
|
return -1;
|
|
|
|
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
|
|
|
|
yynerrs = 0;
|
|
yyerrflag = 0;
|
|
yychar = YYEMPTY;
|
|
yystate = 0;
|
|
|
|
#if YYPURE
|
|
memset(&yystack, 0, sizeof(yystack));
|
|
#endif
|
|
|
|
if (yystack.s_base == NULL && yygrowstack(&yystack)) 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)
|
|
{
|
|
if ((yychar = YYLEX) < 0) yychar = 0;
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
{
|
|
yys = 0;
|
|
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
|
|
if (!yys) yys = "illegal-symbol";
|
|
printf("%sdebug: state %d, reading %d (%s)\n",
|
|
YYPREFIX, yystate, yychar, yys);
|
|
}
|
|
#endif
|
|
}
|
|
if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&
|
|
yyn <= YYTABLESIZE && yycheck[yyn] == 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))
|
|
{
|
|
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]) && (yyn += yychar) >= 0 &&
|
|
yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
|
|
{
|
|
yyn = yytable[yyn];
|
|
goto yyreduce;
|
|
}
|
|
if (yyerrflag) goto yyinrecovery;
|
|
|
|
yyerror("syntax error");
|
|
|
|
goto yyerrlab;
|
|
|
|
yyerrlab:
|
|
++yynerrs;
|
|
|
|
yyinrecovery:
|
|
if (yyerrflag < 3)
|
|
{
|
|
yyerrflag = 3;
|
|
for (;;)
|
|
{
|
|
if ((yyn = yysindex[*yystack.s_mark]) && (yyn += YYERRCODE) >= 0 &&
|
|
yyn <= YYTABLESIZE && yycheck[yyn] == 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))
|
|
{
|
|
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 == 0) goto yyabort;
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
{
|
|
yys = 0;
|
|
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
|
|
if (!yys) yys = "illegal-symbol";
|
|
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)
|
|
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 = copy_string( nmstr );
|
|
did_outfilename = 1;
|
|
}
|
|
break;
|
|
case 17:
|
|
#line 200 "parse.y"
|
|
{ extra_type = copy_string( nmstr ); }
|
|
break;
|
|
case 18:
|
|
#line 202 "parse.y"
|
|
{ prefix = copy_string( nmstr ); }
|
|
break;
|
|
case 19:
|
|
#line 204 "parse.y"
|
|
{ yyclass = copy_string( nmstr ); }
|
|
break;
|
|
case 20:
|
|
#line 206 "parse.y"
|
|
{ headerfilename = copy_string( nmstr ); }
|
|
break;
|
|
case 21:
|
|
#line 208 "parse.y"
|
|
{ tablesext = true; tablesfilename = copy_string( nmstr ); }
|
|
break;
|
|
case 22:
|
|
#line 212 "parse.y"
|
|
{ scon_stk_ptr = yystack.l_mark[-3]; }
|
|
break;
|
|
case 23:
|
|
#line 214 "parse.y"
|
|
{ scon_stk_ptr = yystack.l_mark[-3]; }
|
|
break;
|
|
case 25:
|
|
#line 219 "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 232 "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 268 "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 292 "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 )
|
|
warn(
|
|
"all start conditions already have <<EOF>> rules" );
|
|
|
|
else
|
|
build_eof_action();
|
|
}
|
|
}
|
|
break;
|
|
case 29:
|
|
#line 315 "parse.y"
|
|
{ synerr( _("unrecognized rule") ); }
|
|
break;
|
|
case 30:
|
|
#line 319 "parse.y"
|
|
{ yyval = scon_stk_ptr; }
|
|
break;
|
|
case 31:
|
|
#line 323 "parse.y"
|
|
{ yyval = yystack.l_mark[-2]; }
|
|
break;
|
|
case 32:
|
|
#line 326 "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 343 "parse.y"
|
|
{ yyval = scon_stk_ptr; }
|
|
break;
|
|
case 36:
|
|
#line 351 "parse.y"
|
|
{ synerr( _("bad start condition list") ); }
|
|
break;
|
|
case 37:
|
|
#line 355 "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 378 "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 )
|
|
warn(
|
|
"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 434 "parse.y"
|
|
{ synerr( _("trailing context used twice") ); }
|
|
break;
|
|
case 40:
|
|
#line 437 "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.
|
|
*/
|
|
warn(
|
|
"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 480 "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 498 "parse.y"
|
|
{
|
|
varlength = true;
|
|
yyval = mkor( yystack.l_mark[-2], yystack.l_mark[0] );
|
|
}
|
|
break;
|
|
case 43:
|
|
#line 504 "parse.y"
|
|
{ yyval = yystack.l_mark[0]; }
|
|
break;
|
|
case 44:
|
|
#line 509 "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 536 "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 544 "parse.y"
|
|
{ yyval = yystack.l_mark[0]; }
|
|
break;
|
|
case 47:
|
|
#line 547 "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 575 "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 589 "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 611 "parse.y"
|
|
{
|
|
varlength = true;
|
|
|
|
yyval = mkclos( yystack.l_mark[-1] );
|
|
}
|
|
break;
|
|
case 51:
|
|
#line 618 "parse.y"
|
|
{
|
|
varlength = true;
|
|
yyval = mkposcl( yystack.l_mark[-1] );
|
|
}
|
|
break;
|
|
case 52:
|
|
#line 624 "parse.y"
|
|
{
|
|
varlength = true;
|
|
yyval = mkopt( yystack.l_mark[-1] );
|
|
}
|
|
break;
|
|
case 53:
|
|
#line 630 "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 658 "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 672 "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 691 "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 725 "parse.y"
|
|
{
|
|
/* Sort characters for fast searching.
|
|
*/
|
|
qsort( ccltbl + cclmap[yystack.l_mark[0]], 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 743 "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 753 "parse.y"
|
|
{ yyval = yystack.l_mark[-1]; }
|
|
break;
|
|
case 60:
|
|
#line 756 "parse.y"
|
|
{ yyval = yystack.l_mark[-1]; }
|
|
break;
|
|
case 61:
|
|
#line 759 "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 773 "parse.y"
|
|
{ yyval = ccl_set_diff (yystack.l_mark[-2], yystack.l_mark[0]); }
|
|
break;
|
|
case 63:
|
|
#line 774 "parse.y"
|
|
{ yyval = ccl_set_union (yystack.l_mark[-2], yystack.l_mark[0]); }
|
|
break;
|
|
case 65:
|
|
#line 780 "parse.y"
|
|
{ yyval = yystack.l_mark[-1]; }
|
|
break;
|
|
case 66:
|
|
#line 783 "parse.y"
|
|
{
|
|
cclnegate( yystack.l_mark[-1] );
|
|
yyval = yystack.l_mark[-1];
|
|
}
|
|
break;
|
|
case 67:
|
|
#line 790 "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 850 "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 868 "parse.y"
|
|
{
|
|
/* Too hard to properly maintain cclsorted. */
|
|
cclsorted = false;
|
|
yyval = yystack.l_mark[-1];
|
|
}
|
|
break;
|
|
case 70:
|
|
#line 875 "parse.y"
|
|
{
|
|
cclsorted = true;
|
|
lastchar = 0;
|
|
currccl = yyval = cclinit();
|
|
}
|
|
break;
|
|
case 71:
|
|
#line 883 "parse.y"
|
|
{ CCL_EXPR(isalnum); }
|
|
break;
|
|
case 72:
|
|
#line 884 "parse.y"
|
|
{ CCL_EXPR(isalpha); }
|
|
break;
|
|
case 73:
|
|
#line 885 "parse.y"
|
|
{ CCL_EXPR(IS_BLANK); }
|
|
break;
|
|
case 74:
|
|
#line 886 "parse.y"
|
|
{ CCL_EXPR(iscntrl); }
|
|
break;
|
|
case 75:
|
|
#line 887 "parse.y"
|
|
{ CCL_EXPR(isdigit); }
|
|
break;
|
|
case 76:
|
|
#line 888 "parse.y"
|
|
{ CCL_EXPR(isgraph); }
|
|
break;
|
|
case 77:
|
|
#line 889 "parse.y"
|
|
{
|
|
CCL_EXPR(islower);
|
|
if (sf_case_ins())
|
|
CCL_EXPR(isupper);
|
|
}
|
|
break;
|
|
case 78:
|
|
#line 894 "parse.y"
|
|
{ CCL_EXPR(isprint); }
|
|
break;
|
|
case 79:
|
|
#line 895 "parse.y"
|
|
{ CCL_EXPR(ispunct); }
|
|
break;
|
|
case 80:
|
|
#line 896 "parse.y"
|
|
{ CCL_EXPR(isspace); }
|
|
break;
|
|
case 81:
|
|
#line 897 "parse.y"
|
|
{ CCL_EXPR(isxdigit); }
|
|
break;
|
|
case 82:
|
|
#line 898 "parse.y"
|
|
{
|
|
CCL_EXPR(isupper);
|
|
if (sf_case_ins())
|
|
CCL_EXPR(islower);
|
|
}
|
|
break;
|
|
case 83:
|
|
#line 904 "parse.y"
|
|
{ CCL_NEG_EXPR(isalnum); }
|
|
break;
|
|
case 84:
|
|
#line 905 "parse.y"
|
|
{ CCL_NEG_EXPR(isalpha); }
|
|
break;
|
|
case 85:
|
|
#line 906 "parse.y"
|
|
{ CCL_NEG_EXPR(IS_BLANK); }
|
|
break;
|
|
case 86:
|
|
#line 907 "parse.y"
|
|
{ CCL_NEG_EXPR(iscntrl); }
|
|
break;
|
|
case 87:
|
|
#line 908 "parse.y"
|
|
{ CCL_NEG_EXPR(isdigit); }
|
|
break;
|
|
case 88:
|
|
#line 909 "parse.y"
|
|
{ CCL_NEG_EXPR(isgraph); }
|
|
break;
|
|
case 89:
|
|
#line 910 "parse.y"
|
|
{ CCL_NEG_EXPR(isprint); }
|
|
break;
|
|
case 90:
|
|
#line 911 "parse.y"
|
|
{ CCL_NEG_EXPR(ispunct); }
|
|
break;
|
|
case 91:
|
|
#line 912 "parse.y"
|
|
{ CCL_NEG_EXPR(isspace); }
|
|
break;
|
|
case 92:
|
|
#line 913 "parse.y"
|
|
{ CCL_NEG_EXPR(isxdigit); }
|
|
break;
|
|
case 93:
|
|
#line 914 "parse.y"
|
|
{
|
|
if ( sf_case_ins() )
|
|
warn(_("[:^lower:] is ambiguous in case insensitive scanner"));
|
|
else
|
|
CCL_NEG_EXPR(islower);
|
|
}
|
|
break;
|
|
case 94:
|
|
#line 920 "parse.y"
|
|
{
|
|
if ( sf_case_ins() )
|
|
warn(_("[:^upper:] ambiguous in case insensitive scanner"));
|
|
else
|
|
CCL_NEG_EXPR(isupper);
|
|
}
|
|
break;
|
|
case 95:
|
|
#line 929 "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 944 "parse.y"
|
|
{ yyval = mkstate( SYM_EPSILON ); }
|
|
break;
|
|
#line 1787 "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)
|
|
{
|
|
if ((yychar = YYLEX) < 0) yychar = 0;
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
{
|
|
yys = 0;
|
|
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
|
|
if (!yys) yys = "illegal-symbol";
|
|
printf("%sdebug: state %d, reading %d (%s)\n",
|
|
YYPREFIX, YYFINAL, yychar, yys);
|
|
}
|
|
#endif
|
|
}
|
|
if (yychar == 0) goto yyaccept;
|
|
goto yyloop;
|
|
}
|
|
if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
|
|
yyn <= YYTABLESIZE && yycheck[yyn] == 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))
|
|
{
|
|
goto yyoverflow;
|
|
}
|
|
*++yystack.s_mark = (short) yystate;
|
|
*++yystack.l_mark = yyval;
|
|
goto yyloop;
|
|
|
|
yyoverflow:
|
|
yyerror("yacc stack overflow");
|
|
|
|
yyabort:
|
|
yyfreestack(&yystack);
|
|
return (1);
|
|
|
|
yyaccept:
|
|
yyfreestack(&yystack);
|
|
return (0);
|
|
}
|