+++ /dev/null
-
-/* A Bison parser, made from tradcif.y
- by GNU Bison version 1.28 */
-
-#define YYBISON 1 /* Identify Bison output. */
-
-#define INT 257
-#define CHAR 258
-#define NAME 259
-#define ERROR 260
-#define OR 261
-#define AND 262
-#define EQUAL 263
-#define NOTEQUAL 264
-#define LEQ 265
-#define GEQ 266
-#define LSH 267
-#define RSH 268
-#define UNARY 269
-
-#line 26 "tradcif.y"
-
-#include "config.h"
-#include "system.h"
-#include <setjmp.h>
-
- int yylex PARAMS ((void));
- void yyerror PARAMS ((const char *msgid));
- extern void error PARAMS ((const char *msgid, ...));
- extern void warning PARAMS ((const char *msgid, ...));
- extern struct hashnode *lookup PARAMS ((const unsigned char *, int, int));
-
- int parse_number PARAMS ((int));
- int parse_escape PARAMS ((char **));
- int parse_c_expression PARAMS ((char *));
-
- int expression_value;
- static jmp_buf parse_return_error;
-
- /* some external tables of character types */
- extern unsigned char is_idstart[], is_idchar[];
-
-#ifndef CHAR_TYPE_SIZE
-#define CHAR_TYPE_SIZE BITS_PER_UNIT
-#endif
-
-#line 52 "tradcif.y"
-typedef union {
- struct constant {long value; int unsignedp;} integer;
- int voidval;
- char *sval;
-} YYSTYPE;
-#include <stdio.h>
-
-#ifndef __cplusplus
-#ifndef __STDC__
-#define const
-#endif
-#endif
-
-
-
-#define YYFINAL 61
-#define YYFLAG -32768
-#define YYNTBASE 33
-
-#define YYTRANSLATE(x) ((unsigned)(x) <= 269 ? yytranslate[x] : 36)
-
-static const char yytranslate[] = { 0,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 29, 2, 2, 2, 27, 14, 2, 31,
- 32, 25, 23, 9, 24, 2, 26, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 8, 2, 17,
- 2, 18, 7, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 13, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 12, 2, 30, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 1, 3, 4, 5, 6,
- 10, 11, 15, 16, 19, 20, 21, 22, 28
-};
-
-#if YYDEBUG != 0
-static const short yyprhs[] = { 0,
- 0, 2, 4, 8, 11, 14, 17, 20, 24, 28,
- 32, 36, 40, 44, 48, 52, 56, 60, 64, 68,
- 72, 76, 80, 84, 88, 92, 96, 102, 104, 106
-};
-
-static const short yyrhs[] = { 34,
- 0, 35, 0, 34, 9, 35, 0, 24, 35, 0,
- 29, 35, 0, 23, 35, 0, 30, 35, 0, 31,
- 34, 32, 0, 35, 25, 35, 0, 35, 26, 35,
- 0, 35, 27, 35, 0, 35, 23, 35, 0, 35,
- 24, 35, 0, 35, 21, 35, 0, 35, 22, 35,
- 0, 35, 15, 35, 0, 35, 16, 35, 0, 35,
- 19, 35, 0, 35, 20, 35, 0, 35, 17, 35,
- 0, 35, 18, 35, 0, 35, 14, 35, 0, 35,
- 13, 35, 0, 35, 12, 35, 0, 35, 11, 35,
- 0, 35, 10, 35, 0, 35, 7, 35, 8, 35,
- 0, 3, 0, 4, 0, 5, 0
-};
-
-#endif
-
-#if YYDEBUG != 0
-static const short yyrline[] = { 0,
- 81, 86, 87, 92, 95, 98, 100, 103, 108, 114,
- 125, 136, 139, 142, 148, 154, 157, 160, 167, 174,
- 181, 188, 191, 194, 197, 200, 203, 206, 208, 210
-};
-#endif
-
-
-#if YYDEBUG != 0 || defined (YYERROR_VERBOSE)
-
-static const char * const yytname[] = { "$","error","$undefined.","INT","CHAR",
-"NAME","ERROR","'?'","':'","','","OR","AND","'|'","'^'","'&'","EQUAL","NOTEQUAL",
-"'<'","'>'","LEQ","GEQ","LSH","RSH","'+'","'-'","'*'","'/'","'%'","UNARY","'!'",
-"'~'","'('","')'","start","exp1","exp", NULL
-};
-#endif
-
-static const short yyr1[] = { 0,
- 33, 34, 34, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35
-};
-
-static const short yyr2[] = { 0,
- 1, 1, 3, 2, 2, 2, 2, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 5, 1, 1, 1
-};
-
-static const short yydefact[] = { 0,
- 28, 29, 30, 0, 0, 0, 0, 0, 1, 2,
- 6, 4, 5, 7, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 8, 3, 0, 26, 25,
- 24, 23, 22, 16, 17, 20, 21, 18, 19, 14,
- 15, 12, 13, 9, 10, 11, 0, 27, 0, 0,
- 0
-};
-
-static const short yydefgoto[] = { 59,
- 9, 10
-};
-
-static const short yypact[] = { 31,
--32768,-32768,-32768, 31, 31, 31, 31, 31, 1, 77,
--32768,-32768,-32768,-32768, 0, 31, 31, 31, 31, 31,
- 31, 31, 31, 31, 31, 31, 31, 31, 31, 31,
- 31, 31, 31, 31, 31,-32768, 77, 56, 94, 25,
- 109, 123, 136, 147, 147, 154, 154, 154, 154, -19,
- -19, 32, 32,-32768,-32768,-32768, 31, 77, 11, 33,
--32768
-};
-
-static const short yypgoto[] = {-32768,
- 48, -4
-};
-
-
-#define YYLAST 181
-
-
-static const short yytable[] = { 11,
- 12, 13, 14, 31, 32, 33, 34, 35, 16, 16,
- 60, 37, 38, 39, 40, 41, 42, 43, 44, 45,
- 46, 47, 48, 49, 50, 51, 52, 53, 54, 55,
- 56, 36, 61, 1, 2, 3, 20, 21, 22, 23,
- 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
- 34, 35, 58, 4, 5, 15, 33, 34, 35, 6,
- 7, 8, 17, 57, 0, 18, 19, 20, 21, 22,
- 23, 24, 25, 26, 27, 28, 29, 30, 31, 32,
- 33, 34, 35, 17, 0, 0, 18, 19, 20, 21,
- 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
- 32, 33, 34, 35, 19, 20, 21, 22, 23, 24,
- 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
- 35, 21, 22, 23, 24, 25, 26, 27, 28, 29,
- 30, 31, 32, 33, 34, 35, 22, 23, 24, 25,
- 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
- 23, 24, 25, 26, 27, 28, 29, 30, 31, 32,
- 33, 34, 35, 25, 26, 27, 28, 29, 30, 31,
- 32, 33, 34, 35, 29, 30, 31, 32, 33, 34,
- 35
-};
-
-static const short yycheck[] = { 4,
- 5, 6, 7, 23, 24, 25, 26, 27, 9, 9,
- 0, 16, 17, 18, 19, 20, 21, 22, 23, 24,
- 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
- 35, 32, 0, 3, 4, 5, 12, 13, 14, 15,
- 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
- 26, 27, 57, 23, 24, 8, 25, 26, 27, 29,
- 30, 31, 7, 8, -1, 10, 11, 12, 13, 14,
- 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
- 25, 26, 27, 7, -1, -1, 10, 11, 12, 13,
- 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
- 24, 25, 26, 27, 11, 12, 13, 14, 15, 16,
- 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
- 27, 13, 14, 15, 16, 17, 18, 19, 20, 21,
- 22, 23, 24, 25, 26, 27, 14, 15, 16, 17,
- 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
- 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
- 25, 26, 27, 17, 18, 19, 20, 21, 22, 23,
- 24, 25, 26, 27, 21, 22, 23, 24, 25, 26,
- 27
-};
-/* -*-C-*- Note some compilers choke on comments on `#line' lines. */
-#line 3 "/usr/share/misc/bison.simple"
-/* This file comes from bison-1.28. */
-
-/* Skeleton output parser for bison,
- Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-/* As a special exception, when this file is copied by Bison into a
- Bison output file, you may use that output file without restriction.
- This special exception was added by the Free Software Foundation
- in version 1.24 of Bison. */
-
-/* This is the parser code that is written into each bison parser
- when the %semantic_parser declaration is not specified in the grammar.
- It was written by Richard Stallman by simplifying the hairy parser
- used when %semantic_parser is specified. */
-
-#ifndef YYSTACK_USE_ALLOCA
-#ifdef alloca
-#define YYSTACK_USE_ALLOCA
-#else /* alloca not defined */
-#ifdef __GNUC__
-#define YYSTACK_USE_ALLOCA
-#define alloca __builtin_alloca
-#else /* not GNU C. */
-#if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) || (defined (__sun) && defined (__i386))
-#define YYSTACK_USE_ALLOCA
-#include <alloca.h>
-#else /* not sparc */
-/* We think this test detects Watcom and Microsoft C. */
-/* This used to test MSDOS, but that is a bad idea
- since that symbol is in the user namespace. */
-#if (defined (_MSDOS) || defined (_MSDOS_)) && !defined (__TURBOC__)
-#if 0 /* No need for malloc.h, which pollutes the namespace;
- instead, just don't use alloca. */
-#include <malloc.h>
-#endif
-#else /* not MSDOS, or __TURBOC__ */
-#if defined(_AIX)
-/* I don't know what this was needed for, but it pollutes the namespace.
- So I turned it off. rms, 2 May 1997. */
-/* #include <malloc.h> */
- #pragma alloca
-#define YYSTACK_USE_ALLOCA
-#else /* not MSDOS, or __TURBOC__, or _AIX */
-#if 0
-#ifdef __hpux /* haible@ilog.fr says this works for HPUX 9.05 and up,
- and on HPUX 10. Eventually we can turn this on. */
-#define YYSTACK_USE_ALLOCA
-#define alloca __builtin_alloca
-#endif /* __hpux */
-#endif
-#endif /* not _AIX */
-#endif /* not MSDOS, or __TURBOC__ */
-#endif /* not sparc */
-#endif /* not GNU C */
-#endif /* alloca not defined */
-#endif /* YYSTACK_USE_ALLOCA not defined */
-
-#ifdef YYSTACK_USE_ALLOCA
-#define YYSTACK_ALLOC alloca
-#else
-#define YYSTACK_ALLOC malloc
-#endif
-
-/* Note: there must be only one dollar sign in this file.
- It is replaced by the list of actions, each action
- as one case of the switch. */
-
-#define yyerrok (yyerrstatus = 0)
-#define yyclearin (yychar = YYEMPTY)
-#define YYEMPTY -2
-#define YYEOF 0
-#define YYACCEPT goto yyacceptlab
-#define YYABORT goto yyabortlab
-#define YYERROR goto yyerrlab1
-/* Like YYERROR except do call yyerror.
- This remains here temporarily to ease the
- transition to the new meaning of YYERROR, for GCC.
- Once GCC version 2 has supplanted version 1, this can go. */
-#define YYFAIL goto yyerrlab
-#define YYRECOVERING() (!!yyerrstatus)
-#define YYBACKUP(token, value) \
-do \
- if (yychar == YYEMPTY && yylen == 1) \
- { yychar = (token), yylval = (value); \
- yychar1 = YYTRANSLATE (yychar); \
- YYPOPSTACK; \
- goto yybackup; \
- } \
- else \
- { yyerror ("syntax error: cannot back up"); YYERROR; } \
-while (0)
-
-#define YYTERROR 1
-#define YYERRCODE 256
-
-#ifndef YYPURE
-#define YYLEX yylex()
-#endif
-
-#ifdef YYPURE
-#ifdef YYLSP_NEEDED
-#ifdef YYLEX_PARAM
-#define YYLEX yylex(&yylval, &yylloc, YYLEX_PARAM)
-#else
-#define YYLEX yylex(&yylval, &yylloc)
-#endif
-#else /* not YYLSP_NEEDED */
-#ifdef YYLEX_PARAM
-#define YYLEX yylex(&yylval, YYLEX_PARAM)
-#else
-#define YYLEX yylex(&yylval)
-#endif
-#endif /* not YYLSP_NEEDED */
-#endif
-
-/* If nonreentrant, generate the variables here */
-
-#ifndef YYPURE
-
-int yychar; /* the lookahead symbol */
-YYSTYPE yylval; /* the semantic value of the */
- /* lookahead symbol */
-
-#ifdef YYLSP_NEEDED
-YYLTYPE yylloc; /* location data for the lookahead */
- /* symbol */
-#endif
-
-int yynerrs; /* number of parse errors so far */
-#endif /* not YYPURE */
-
-#if YYDEBUG != 0
-int yydebug; /* nonzero means print parse trace */
-/* Since this is uninitialized, it does not stop multiple parsers
- from coexisting. */
-#endif
-
-/* YYINITDEPTH indicates the initial size of the parser's stacks */
-
-#ifndef YYINITDEPTH
-#define YYINITDEPTH 200
-#endif
-
-/* YYMAXDEPTH is the maximum size the stacks can grow to
- (effective only if the built-in stack extension method is used). */
-
-#if YYMAXDEPTH == 0
-#undef YYMAXDEPTH
-#endif
-
-#ifndef YYMAXDEPTH
-#define YYMAXDEPTH 10000
-#endif
-\f
-/* Define __yy_memcpy. Note that the size argument
- should be passed with type unsigned int, because that is what the non-GCC
- definitions require. With GCC, __builtin_memcpy takes an arg
- of type size_t, but it can handle unsigned int. */
-
-#if __GNUC__ > 1 /* GNU C and GNU C++ define this. */
-#define __yy_memcpy(TO,FROM,COUNT) __builtin_memcpy(TO,FROM,COUNT)
-#else /* not GNU C or C++ */
-#ifndef __cplusplus
-
-/* This is the most reliable way to avoid incompatibilities
- in available built-in functions on various systems. */
-static void
-__yy_memcpy (to, from, count)
- char *to;
- char *from;
- unsigned int count;
-{
- register char *f = from;
- register char *t = to;
- register int i = count;
-
- while (i-- > 0)
- *t++ = *f++;
-}
-
-#else /* __cplusplus */
-
-/* This is the most reliable way to avoid incompatibilities
- in available built-in functions on various systems. */
-static void
-__yy_memcpy (char *to, char *from, unsigned int count)
-{
- register char *t = to;
- register char *f = from;
- register int i = count;
-
- while (i-- > 0)
- *t++ = *f++;
-}
-
-#endif
-#endif
-\f
-#line 217 "/usr/share/misc/bison.simple"
-
-/* The user can define YYPARSE_PARAM as the name of an argument to be passed
- into yyparse. The argument should have type void *.
- It should actually point to an object.
- Grammar actions can access the variable by casting it
- to the proper pointer type. */
-
-#ifdef YYPARSE_PARAM
-#ifdef __cplusplus
-#define YYPARSE_PARAM_ARG void *YYPARSE_PARAM
-#define YYPARSE_PARAM_DECL
-#else /* not __cplusplus */
-#define YYPARSE_PARAM_ARG YYPARSE_PARAM
-#define YYPARSE_PARAM_DECL void *YYPARSE_PARAM;
-#endif /* not __cplusplus */
-#else /* not YYPARSE_PARAM */
-#define YYPARSE_PARAM_ARG
-#define YYPARSE_PARAM_DECL
-#endif /* not YYPARSE_PARAM */
-
-/* Prevent warning if -Wstrict-prototypes. */
-#ifdef __GNUC__
-#ifdef YYPARSE_PARAM
-int yyparse (void *);
-#else
-int yyparse (void);
-#endif
-#endif
-
-int
-yyparse(YYPARSE_PARAM_ARG)
- YYPARSE_PARAM_DECL
-{
- register int yystate;
- register int yyn;
- register short *yyssp;
- register YYSTYPE *yyvsp;
- int yyerrstatus; /* number of tokens to shift before error messages enabled */
- int yychar1 = 0; /* lookahead token as an internal (translated) token number */
-
- short yyssa[YYINITDEPTH]; /* the state stack */
- YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */
-
- short *yyss = yyssa; /* refer to the stacks thru separate pointers */
- YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */
-
-#ifdef YYLSP_NEEDED
- YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */
- YYLTYPE *yyls = yylsa;
- YYLTYPE *yylsp;
-
-#define YYPOPSTACK (yyvsp--, yyssp--, yylsp--)
-#else
-#define YYPOPSTACK (yyvsp--, yyssp--)
-#endif
-
- int yystacksize = YYINITDEPTH;
- int yyfree_stacks = 0;
-
-#ifdef YYPURE
- int yychar;
- YYSTYPE yylval;
- int yynerrs;
-#ifdef YYLSP_NEEDED
- YYLTYPE yylloc;
-#endif
-#endif
-
- YYSTYPE yyval; /* the variable used to return */
- /* semantic values from the action */
- /* routines */
-
- int yylen;
-
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Starting parse\n");
-#endif
-
- yystate = 0;
- yyerrstatus = 0;
- yynerrs = 0;
- yychar = YYEMPTY; /* Cause a token to be read. */
-
- /* Initialize stack pointers.
- Waste one element of value and location stack
- so that they stay on the same level as the state stack.
- The wasted elements are never initialized. */
-
- yyssp = yyss - 1;
- yyvsp = yyvs;
-#ifdef YYLSP_NEEDED
- yylsp = yyls;
-#endif
-
-/* Push a new state, which is found in yystate . */
-/* In all cases, when you get here, the value and location stacks
- have just been pushed. so pushing a state here evens the stacks. */
-yynewstate:
-
- *++yyssp = yystate;
-
- if (yyssp >= yyss + yystacksize - 1)
- {
- /* Give user a chance to reallocate the stack */
- /* Use copies of these so that the &'s don't force the real ones into memory. */
- YYSTYPE *yyvs1 = yyvs;
- short *yyss1 = yyss;
-#ifdef YYLSP_NEEDED
- YYLTYPE *yyls1 = yyls;
-#endif
-
- /* Get the current used size of the three stacks, in elements. */
- int size = yyssp - yyss + 1;
-
-#ifdef yyoverflow
- /* Each stack pointer address is followed by the size of
- the data in use in that stack, in bytes. */
-#ifdef YYLSP_NEEDED
- /* This used to be a conditional around just the two extra args,
- but that might be undefined if yyoverflow is a macro. */
- yyoverflow("parser stack overflow",
- &yyss1, size * sizeof (*yyssp),
- &yyvs1, size * sizeof (*yyvsp),
- &yyls1, size * sizeof (*yylsp),
- &yystacksize);
-#else
- yyoverflow("parser stack overflow",
- &yyss1, size * sizeof (*yyssp),
- &yyvs1, size * sizeof (*yyvsp),
- &yystacksize);
-#endif
-
- yyss = yyss1; yyvs = yyvs1;
-#ifdef YYLSP_NEEDED
- yyls = yyls1;
-#endif
-#else /* no yyoverflow */
- /* Extend the stack our own way. */
- if (yystacksize >= YYMAXDEPTH)
- {
- yyerror("parser stack overflow");
- if (yyfree_stacks)
- {
- free (yyss);
- free (yyvs);
-#ifdef YYLSP_NEEDED
- free (yyls);
-#endif
- }
- return 2;
- }
- yystacksize *= 2;
- if (yystacksize > YYMAXDEPTH)
- yystacksize = YYMAXDEPTH;
-#ifndef YYSTACK_USE_ALLOCA
- yyfree_stacks = 1;
-#endif
- yyss = (short *) YYSTACK_ALLOC (yystacksize * sizeof (*yyssp));
- __yy_memcpy ((char *)yyss, (char *)yyss1,
- size * (unsigned int) sizeof (*yyssp));
- yyvs = (YYSTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yyvsp));
- __yy_memcpy ((char *)yyvs, (char *)yyvs1,
- size * (unsigned int) sizeof (*yyvsp));
-#ifdef YYLSP_NEEDED
- yyls = (YYLTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yylsp));
- __yy_memcpy ((char *)yyls, (char *)yyls1,
- size * (unsigned int) sizeof (*yylsp));
-#endif
-#endif /* no yyoverflow */
-
- yyssp = yyss + size - 1;
- yyvsp = yyvs + size - 1;
-#ifdef YYLSP_NEEDED
- yylsp = yyls + size - 1;
-#endif
-
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Stack size increased to %d\n", yystacksize);
-#endif
-
- if (yyssp >= yyss + yystacksize - 1)
- YYABORT;
- }
-
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Entering state %d\n", yystate);
-#endif
-
- goto yybackup;
- yybackup:
-
-/* Do appropriate processing given the current state. */
-/* Read a lookahead token if we need one and don't already have one. */
-/* yyresume: */
-
- /* First try to decide what to do without reference to lookahead token. */
-
- yyn = yypact[yystate];
- if (yyn == YYFLAG)
- goto yydefault;
-
- /* Not known => get a lookahead token if don't already have one. */
-
- /* yychar is either YYEMPTY or YYEOF
- or a valid token in external form. */
-
- if (yychar == YYEMPTY)
- {
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Reading a token: ");
-#endif
- yychar = YYLEX;
- }
-
- /* Convert token to internal form (in yychar1) for indexing tables with */
-
- if (yychar <= 0) /* This means end of input. */
- {
- yychar1 = 0;
- yychar = YYEOF; /* Don't call YYLEX any more */
-
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Now at end of input.\n");
-#endif
- }
- else
- {
- yychar1 = YYTRANSLATE(yychar);
-
-#if YYDEBUG != 0
- if (yydebug)
- {
- fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]);
- /* Give the individual parser a way to print the precise meaning
- of a token, for further debugging info. */
-#ifdef YYPRINT
- YYPRINT (stderr, yychar, yylval);
-#endif
- fprintf (stderr, ")\n");
- }
-#endif
- }
-
- yyn += yychar1;
- if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1)
- goto yydefault;
-
- yyn = yytable[yyn];
-
- /* yyn is what to do for this token type in this state.
- Negative => reduce, -yyn is rule number.
- Positive => shift, yyn is new state.
- New state is final state => don't bother to shift,
- just return success.
- 0, or most negative number => error. */
-
- if (yyn < 0)
- {
- if (yyn == YYFLAG)
- goto yyerrlab;
- yyn = -yyn;
- goto yyreduce;
- }
- else if (yyn == 0)
- goto yyerrlab;
-
- if (yyn == YYFINAL)
- YYACCEPT;
-
- /* Shift the lookahead token. */
-
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]);
-#endif
-
- /* Discard the token being shifted unless it is eof. */
- if (yychar != YYEOF)
- yychar = YYEMPTY;
-
- *++yyvsp = yylval;
-#ifdef YYLSP_NEEDED
- *++yylsp = yylloc;
-#endif
-
- /* count tokens shifted since error; after three, turn off error status. */
- if (yyerrstatus) yyerrstatus--;
-
- yystate = yyn;
- goto yynewstate;
-
-/* Do the default action for the current state. */
-yydefault:
-
- yyn = yydefact[yystate];
- if (yyn == 0)
- goto yyerrlab;
-
-/* Do a reduction. yyn is the number of a rule to reduce with. */
-yyreduce:
- yylen = yyr2[yyn];
- if (yylen > 0)
- yyval = yyvsp[1-yylen]; /* implement default value of the action */
-
-#if YYDEBUG != 0
- if (yydebug)
- {
- int i;
-
- fprintf (stderr, "Reducing via rule %d (line %d), ",
- yyn, yyrline[yyn]);
-
- /* Print the symbols being reduced, and their result. */
- for (i = yyprhs[yyn]; yyrhs[i] > 0; i++)
- fprintf (stderr, "%s ", yytname[yyrhs[i]]);
- fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]);
- }
-#endif
-
-
- switch (yyn) {
-
-case 1:
-#line 82 "tradcif.y"
-{ expression_value = yyvsp[0].integer.value; ;
- break;}
-case 3:
-#line 88 "tradcif.y"
-{ yyval.integer = yyvsp[0].integer; ;
- break;}
-case 4:
-#line 93 "tradcif.y"
-{ yyval.integer.value = - yyvsp[0].integer.value;
- yyval.integer.unsignedp = yyvsp[0].integer.unsignedp; ;
- break;}
-case 5:
-#line 96 "tradcif.y"
-{ yyval.integer.value = ! yyvsp[0].integer.value;
- yyval.integer.unsignedp = 0; ;
- break;}
-case 6:
-#line 99 "tradcif.y"
-{ yyval.integer = yyvsp[0].integer; ;
- break;}
-case 7:
-#line 101 "tradcif.y"
-{ yyval.integer.value = ~ yyvsp[0].integer.value;
- yyval.integer.unsignedp = yyvsp[0].integer.unsignedp; ;
- break;}
-case 8:
-#line 104 "tradcif.y"
-{ yyval.integer = yyvsp[-1].integer; ;
- break;}
-case 9:
-#line 109 "tradcif.y"
-{ yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp;
- if (yyval.integer.unsignedp)
- yyval.integer.value = (unsigned) yyvsp[-2].integer.value * yyvsp[0].integer.value;
- else
- yyval.integer.value = yyvsp[-2].integer.value * yyvsp[0].integer.value; ;
- break;}
-case 10:
-#line 115 "tradcif.y"
-{ if (yyvsp[0].integer.value == 0)
- {
- error ("division by zero in #if");
- yyvsp[0].integer.value = 1;
- }
- yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp;
- if (yyval.integer.unsignedp)
- yyval.integer.value = (unsigned) yyvsp[-2].integer.value / yyvsp[0].integer.value;
- else
- yyval.integer.value = yyvsp[-2].integer.value / yyvsp[0].integer.value; ;
- break;}
-case 11:
-#line 126 "tradcif.y"
-{ if (yyvsp[0].integer.value == 0)
- {
- error ("division by zero in #if");
- yyvsp[0].integer.value = 1;
- }
- yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp;
- if (yyval.integer.unsignedp)
- yyval.integer.value = (unsigned) yyvsp[-2].integer.value % yyvsp[0].integer.value;
- else
- yyval.integer.value = yyvsp[-2].integer.value % yyvsp[0].integer.value; ;
- break;}
-case 12:
-#line 137 "tradcif.y"
-{ yyval.integer.value = yyvsp[-2].integer.value + yyvsp[0].integer.value;
- yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp; ;
- break;}
-case 13:
-#line 140 "tradcif.y"
-{ yyval.integer.value = yyvsp[-2].integer.value - yyvsp[0].integer.value;
- yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp; ;
- break;}
-case 14:
-#line 143 "tradcif.y"
-{ yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp;
- if (yyval.integer.unsignedp)
- yyval.integer.value = (unsigned) yyvsp[-2].integer.value << yyvsp[0].integer.value;
- else
- yyval.integer.value = yyvsp[-2].integer.value << yyvsp[0].integer.value; ;
- break;}
-case 15:
-#line 149 "tradcif.y"
-{ yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp;
- if (yyval.integer.unsignedp)
- yyval.integer.value = (unsigned) yyvsp[-2].integer.value >> yyvsp[0].integer.value;
- else
- yyval.integer.value = yyvsp[-2].integer.value >> yyvsp[0].integer.value; ;
- break;}
-case 16:
-#line 155 "tradcif.y"
-{ yyval.integer.value = (yyvsp[-2].integer.value == yyvsp[0].integer.value);
- yyval.integer.unsignedp = 0; ;
- break;}
-case 17:
-#line 158 "tradcif.y"
-{ yyval.integer.value = (yyvsp[-2].integer.value != yyvsp[0].integer.value);
- yyval.integer.unsignedp = 0; ;
- break;}
-case 18:
-#line 161 "tradcif.y"
-{ yyval.integer.unsignedp = 0;
- if (yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp)
- yyval.integer.value =
- (unsigned) yyvsp[-2].integer.value <= (unsigned) yyvsp[0].integer.value;
- else
- yyval.integer.value = yyvsp[-2].integer.value <= yyvsp[0].integer.value; ;
- break;}
-case 19:
-#line 168 "tradcif.y"
-{ yyval.integer.unsignedp = 0;
- if (yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp)
- yyval.integer.value =
- (unsigned) yyvsp[-2].integer.value >= (unsigned) yyvsp[0].integer.value;
- else
- yyval.integer.value = yyvsp[-2].integer.value >= yyvsp[0].integer.value; ;
- break;}
-case 20:
-#line 175 "tradcif.y"
-{ yyval.integer.unsignedp = 0;
- if (yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp)
- yyval.integer.value =
- (unsigned) yyvsp[-2].integer.value < (unsigned) yyvsp[0].integer.value;
- else
- yyval.integer.value = yyvsp[-2].integer.value < yyvsp[0].integer.value; ;
- break;}
-case 21:
-#line 182 "tradcif.y"
-{ yyval.integer.unsignedp = 0;
- if (yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp)
- yyval.integer.value =
- (unsigned) yyvsp[-2].integer.value > (unsigned) yyvsp[0].integer.value;
- else
- yyval.integer.value = yyvsp[-2].integer.value > yyvsp[0].integer.value; ;
- break;}
-case 22:
-#line 189 "tradcif.y"
-{ yyval.integer.value = yyvsp[-2].integer.value & yyvsp[0].integer.value;
- yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp; ;
- break;}
-case 23:
-#line 192 "tradcif.y"
-{ yyval.integer.value = yyvsp[-2].integer.value ^ yyvsp[0].integer.value;
- yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp; ;
- break;}
-case 24:
-#line 195 "tradcif.y"
-{ yyval.integer.value = yyvsp[-2].integer.value | yyvsp[0].integer.value;
- yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp; ;
- break;}
-case 25:
-#line 198 "tradcif.y"
-{ yyval.integer.value = (yyvsp[-2].integer.value && yyvsp[0].integer.value);
- yyval.integer.unsignedp = 0; ;
- break;}
-case 26:
-#line 201 "tradcif.y"
-{ yyval.integer.value = (yyvsp[-2].integer.value || yyvsp[0].integer.value);
- yyval.integer.unsignedp = 0; ;
- break;}
-case 27:
-#line 204 "tradcif.y"
-{ yyval.integer.value = yyvsp[-4].integer.value ? yyvsp[-2].integer.value : yyvsp[0].integer.value;
- yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp; ;
- break;}
-case 28:
-#line 207 "tradcif.y"
-{ yyval.integer = yylval.integer; ;
- break;}
-case 29:
-#line 209 "tradcif.y"
-{ yyval.integer = yylval.integer; ;
- break;}
-case 30:
-#line 211 "tradcif.y"
-{ yyval.integer.value = 0;
- yyval.integer.unsignedp = 0; ;
- break;}
-}
- /* the action file gets copied in in place of this dollarsign */
-#line 543 "/usr/share/misc/bison.simple"
-\f
- yyvsp -= yylen;
- yyssp -= yylen;
-#ifdef YYLSP_NEEDED
- yylsp -= yylen;
-#endif
-
-#if YYDEBUG != 0
- if (yydebug)
- {
- short *ssp1 = yyss - 1;
- fprintf (stderr, "state stack now");
- while (ssp1 != yyssp)
- fprintf (stderr, " %d", *++ssp1);
- fprintf (stderr, "\n");
- }
-#endif
-
- *++yyvsp = yyval;
-
-#ifdef YYLSP_NEEDED
- yylsp++;
- if (yylen == 0)
- {
- yylsp->first_line = yylloc.first_line;
- yylsp->first_column = yylloc.first_column;
- yylsp->last_line = (yylsp-1)->last_line;
- yylsp->last_column = (yylsp-1)->last_column;
- yylsp->text = 0;
- }
- else
- {
- yylsp->last_line = (yylsp+yylen-1)->last_line;
- yylsp->last_column = (yylsp+yylen-1)->last_column;
- }
-#endif
-
- /* Now "shift" the result of the reduction.
- Determine what state that goes to,
- based on the state we popped back to
- and the rule number reduced by. */
-
- yyn = yyr1[yyn];
-
- yystate = yypgoto[yyn - YYNTBASE] + *yyssp;
- if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
- yystate = yytable[yystate];
- else
- yystate = yydefgoto[yyn - YYNTBASE];
-
- goto yynewstate;
-
-yyerrlab: /* here on detecting error */
-
- if (! yyerrstatus)
- /* If not already recovering from an error, report this error. */
- {
- ++yynerrs;
-
-#ifdef YYERROR_VERBOSE
- yyn = yypact[yystate];
-
- if (yyn > YYFLAG && yyn < YYLAST)
- {
- int size = 0;
- char *msg;
- int x, count;
-
- count = 0;
- /* Start X at -yyn if nec to avoid negative indexes in yycheck. */
- for (x = (yyn < 0 ? -yyn : 0);
- x < (sizeof(yytname) / sizeof(char *)); x++)
- if (yycheck[x + yyn] == x)
- size += strlen(yytname[x]) + 15, count++;
- msg = (char *) malloc(size + 15);
- if (msg != 0)
- {
- strcpy(msg, "parse error");
-
- if (count < 5)
- {
- count = 0;
- for (x = (yyn < 0 ? -yyn : 0);
- x < (sizeof(yytname) / sizeof(char *)); x++)
- if (yycheck[x + yyn] == x)
- {
- strcat(msg, count == 0 ? ", expecting `" : " or `");
- strcat(msg, yytname[x]);
- strcat(msg, "'");
- count++;
- }
- }
- yyerror(msg);
- free(msg);
- }
- else
- yyerror ("parse error; also virtual memory exceeded");
- }
- else
-#endif /* YYERROR_VERBOSE */
- yyerror("parse error");
- }
-
- goto yyerrlab1;
-yyerrlab1: /* here on error raised explicitly by an action */
-
- if (yyerrstatus == 3)
- {
- /* if just tried and failed to reuse lookahead token after an error, discard it. */
-
- /* return failure if at end of input */
- if (yychar == YYEOF)
- YYABORT;
-
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]);
-#endif
-
- yychar = YYEMPTY;
- }
-
- /* Else will try to reuse lookahead token
- after shifting the error token. */
-
- yyerrstatus = 3; /* Each real token shifted decrements this */
-
- goto yyerrhandle;
-
-yyerrdefault: /* current state does not do anything special for the error token. */
-
-#if 0
- /* This is wrong; only states that explicitly want error tokens
- should shift them. */
- yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/
- if (yyn) goto yydefault;
-#endif
-
-yyerrpop: /* pop the current state because it cannot handle the error token */
-
- if (yyssp == yyss) YYABORT;
- yyvsp--;
- yystate = *--yyssp;
-#ifdef YYLSP_NEEDED
- yylsp--;
-#endif
-
-#if YYDEBUG != 0
- if (yydebug)
- {
- short *ssp1 = yyss - 1;
- fprintf (stderr, "Error: state stack now");
- while (ssp1 != yyssp)
- fprintf (stderr, " %d", *++ssp1);
- fprintf (stderr, "\n");
- }
-#endif
-
-yyerrhandle:
-
- yyn = yypact[yystate];
- if (yyn == YYFLAG)
- goto yyerrdefault;
-
- yyn += YYTERROR;
- if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR)
- goto yyerrdefault;
-
- yyn = yytable[yyn];
- if (yyn < 0)
- {
- if (yyn == YYFLAG)
- goto yyerrpop;
- yyn = -yyn;
- goto yyreduce;
- }
- else if (yyn == 0)
- goto yyerrpop;
-
- if (yyn == YYFINAL)
- YYACCEPT;
-
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Shifting error token, ");
-#endif
-
- *++yyvsp = yylval;
-#ifdef YYLSP_NEEDED
- *++yylsp = yylloc;
-#endif
-
- yystate = yyn;
- goto yynewstate;
-
- yyacceptlab:
- /* YYACCEPT comes here. */
- if (yyfree_stacks)
- {
- free (yyss);
- free (yyvs);
-#ifdef YYLSP_NEEDED
- free (yyls);
-#endif
- }
- return 0;
-
- yyabortlab:
- /* YYABORT comes here. */
- if (yyfree_stacks)
- {
- free (yyss);
- free (yyvs);
-#ifdef YYLSP_NEEDED
- free (yyls);
-#endif
- }
- return 1;
-}
-#line 214 "tradcif.y"
-
-\f
-/* During parsing of a C expression, the pointer to the next character
- is in this variable. */
-
-static char *lexptr;
-
-/* Take care of parsing a number (anything that starts with a digit).
- Set yylval and return the token type; update lexptr.
- LEN is the number of characters in it. */
-
-/* maybe needs to actually deal with floating point numbers */
-
-int
-parse_number (olen)
- int olen;
-{
- register char *p = lexptr;
- register long n = 0;
- register int c;
- register int base = 10;
- register int len = olen;
-
- for (c = 0; c < len; c++)
- if (p[c] == '.') {
- /* It's a float since it contains a point. */
- yyerror ("floating point numbers not allowed in #if expressions");
- return ERROR;
- }
-
- yylval.integer.unsignedp = 0;
-
- if (len >= 3 && (!strncmp (p, "0x", 2) || !strncmp (p, "0X", 2))) {
- p += 2;
- base = 16;
- len -= 2;
- }
- else if (*p == '0')
- base = 8;
-
- while (len > 0) {
- c = *p++;
- len--;
- if (c >= 'A' && c <= 'Z') c += 'a' - 'A';
-
- if (c >= '0' && c <= '9') {
- n *= base;
- n += c - '0';
- } else if (base == 16 && c >= 'a' && c <= 'f') {
- n *= base;
- n += c - 'a' + 10;
- } else {
- /* `l' means long, and `u' means unsigned. */
- while (1) {
- if (c == 'l' || c == 'L')
- ;
- else if (c == 'u' || c == 'U')
- yylval.integer.unsignedp = 1;
- else
- break;
-
- if (len == 0)
- break;
- c = *p++;
- len--;
- }
- /* Don't look for any more digits after the suffixes. */
- break;
- }
- }
-
- if (len != 0) {
- yyerror ("Invalid number in #if expression");
- return ERROR;
- }
-
- /* If too big to be signed, consider it unsigned. */
- if (n < 0)
- yylval.integer.unsignedp = 1;
-
- lexptr = p;
- yylval.integer.value = n;
- return INT;
-}
-
-struct token {
- const char *operator;
- int token;
-};
-
-#ifndef NULL
-#define NULL 0
-#endif
-
-static struct token tokentab2[] = {
- {"&&", AND},
- {"||", OR},
- {"<<", LSH},
- {">>", RSH},
- {"==", EQUAL},
- {"!=", NOTEQUAL},
- {"<=", LEQ},
- {">=", GEQ},
- {NULL, ERROR}
-};
-
-/* Read one token, getting characters through lexptr. */
-
-int
-yylex ()
-{
- register int c;
- register int namelen;
- register char *tokstart;
- register struct token *toktab;
-
- retry:
-
- tokstart = lexptr;
- c = *tokstart;
- /* See if it is a special token of length 2. */
- for (toktab = tokentab2; toktab->operator != NULL; toktab++)
- if (c == *toktab->operator && tokstart[1] == toktab->operator[1]) {
- lexptr += 2;
- return toktab->token;
- }
-
- switch (c) {
- case 0:
- return 0;
-
- case ' ':
- case '\t':
- case '\r':
- case '\n':
- lexptr++;
- goto retry;
-
- case '\'':
- lexptr++;
- c = *lexptr++;
- if (c == '\\')
- c = parse_escape (&lexptr);
-
- /* Sign-extend the constant if chars are signed on target machine. */
- {
- if (lookup ((const unsigned char *)"__CHAR_UNSIGNED__",
- sizeof ("__CHAR_UNSIGNED__")-1, -1)
- || ((c >> (CHAR_TYPE_SIZE - 1)) & 1) == 0)
- yylval.integer.value = c & ((1 << CHAR_TYPE_SIZE) - 1);
- else
- yylval.integer.value = c | ~((1 << CHAR_TYPE_SIZE) - 1);
- }
-
- yylval.integer.unsignedp = 0;
- c = *lexptr++;
- if (c != '\'') {
- yyerror ("Invalid character constant in #if");
- return ERROR;
- }
-
- return CHAR;
-
- /* some of these chars are invalid in constant expressions;
- maybe do something about them later */
- case '/':
- case '+':
- case '-':
- case '*':
- case '%':
- case '|':
- case '&':
- case '^':
- case '~':
- case '!':
- case '@':
- case '<':
- case '>':
- case '(':
- case ')':
- case '[':
- case ']':
- case '.':
- case '?':
- case ':':
- case '=':
- case '{':
- case '}':
- case ',':
- lexptr++;
- return c;
-
- case '"':
- yyerror ("double quoted strings not allowed in #if expressions");
- return ERROR;
- }
- if (c >= '0' && c <= '9') {
- /* It's a number */
- for (namelen = 0;
- c = tokstart[namelen], is_idchar[c] || c == '.';
- namelen++)
- ;
- return parse_number (namelen);
- }
-
- if (!is_idstart[c]) {
- yyerror ("Invalid token in expression");
- return ERROR;
- }
-
- /* It is a name. See how long it is. */
-
- for (namelen = 0;
- is_idchar[(int)(unsigned char)tokstart[namelen]];
- namelen++)
- ;
-
- lexptr += namelen;
- return NAME;
-}
-
-
-/* Parse a C escape sequence. STRING_PTR points to a variable
- containing a pointer to the string to parse. That pointer
- is updated past the characters we use. The value of the
- escape sequence is returned.
-
- A negative value means the sequence \ newline was seen,
- which is supposed to be equivalent to nothing at all.
-
- If \ is followed by a null character, we return a negative
- value and leave the string pointer pointing at the null character.
-
- If \ is followed by 000, we return 0 and leave the string pointer
- after the zeros. A value of 0 does not mean end of string. */
-
-int
-parse_escape (string_ptr)
- char **string_ptr;
-{
- register int c = *(*string_ptr)++;
- switch (c)
- {
- case 'a':
- return TARGET_BELL;
- case 'b':
- return TARGET_BS;
- case 'e':
- return 033;
- case 'f':
- return TARGET_FF;
- case 'n':
- return TARGET_NEWLINE;
- case 'r':
- return TARGET_CR;
- case 't':
- return TARGET_TAB;
- case 'v':
- return TARGET_VT;
- case '\n':
- return -2;
- case 0:
- (*string_ptr)--;
- return 0;
- case '^':
- c = *(*string_ptr)++;
- if (c == '\\')
- c = parse_escape (string_ptr);
- if (c == '?')
- return 0177;
- return (c & 0200) | (c & 037);
-
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- {
- register int i = c - '0';
- register int count = 0;
- while (++count < 3)
- {
- c = *(*string_ptr)++;
- if (c >= '0' && c <= '7')
- i = (i << 3) + c - '0';
- else
- {
- (*string_ptr)--;
- break;
- }
- }
- if ((i & ~((1 << CHAR_TYPE_SIZE) - 1)) != 0)
- {
- i &= (1 << CHAR_TYPE_SIZE) - 1;
- warning ("octal character constant does not fit in a byte");
- }
- return i;
- }
- case 'x':
- {
- register int i = 0;
- for (;;)
- {
- c = *(*string_ptr)++;
- if (c >= '0' && c <= '9')
- i = (i << 4) + c - '0';
- else if (c >= 'a' && c <= 'f')
- i = (i << 4) + c - 'a' + 10;
- else if (c >= 'A' && c <= 'F')
- i = (i << 4) + c - 'A' + 10;
- else
- {
- (*string_ptr)--;
- break;
- }
- }
- if ((i & ~((1 << BITS_PER_UNIT) - 1)) != 0)
- {
- i &= (1 << BITS_PER_UNIT) - 1;
- warning ("hex character constant does not fit in a byte");
- }
- return i;
- }
- default:
- return c;
- }
-}
-
-void
-yyerror (s)
- const char *s;
-{
- error (s);
- longjmp (parse_return_error, 1);
-}
-\f
-/* This page contains the entry point to this file. */
-
-/* Parse STRING as an expression, and complain if this fails
- to use up all of the contents of STRING. */
-/* We do not support C comments. They should be removed before
- this function is called. */
-
-int
-parse_c_expression (string)
- char *string;
-{
- lexptr = string;
-
- if (lexptr == 0 || *lexptr == 0) {
- error ("empty #if expression");
- return 0; /* don't include the #if group */
- }
-
- /* if there is some sort of scanning error, just return 0 and assume
- the parsing routine has printed an error message somewhere.
- there is surely a better thing to do than this. */
- if (setjmp (parse_return_error))
- return 0;
-
- if (yyparse ())
- return 0; /* actually this is never reached
- the way things stand. */
- if (*lexptr)
- error ("Junk after end of expression.");
-
- return expression_value; /* set by yyparse () */
-}
projects / platform / upstream / gcc.git / commitdiff