668e3ec014
`int yyparse(;) ; { ... }' in K&R mode. Getting rid of the second
unwanted semicolon in this made the ifdef tangle more tangled than
before. Fixed a backwards comment in the tangle.
412 lines
13 KiB
C
412 lines
13 KiB
C
/*
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* Copyright (c) 1989 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Robert Paul Corbett.
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*
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char const sccsid[] = "@(#)skeleton.c 5.8 (Berkeley) 4/29/95";
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#endif /* not lint */
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#include "defs.h"
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/* The definition of yysccsid in the banner should be replaced with */
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/* a #pragma ident directive if the target C compiler supports */
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/* #pragma ident directives. */
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/* */
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/* If the skeleton is changed, the banner should be changed so that */
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/* the altered version can be easily distinguished from the original. */
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/* */
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/* The #defines included with the banner are there because they are */
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/* useful in subsequent code. The macros #defined in the header or */
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/* the body either are not useful outside of semantic actions or */
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/* are conditional. */
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char *banner[] =
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{
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"#ifndef lint",
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"static char const ",
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"yyrcsid[] = \"$FreeBSD$\";",
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"#endif",
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"#include <stdlib.h>",
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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 YYLEX yylex()",
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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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"static int yygrowstack();",
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0
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};
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char *tables[] =
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{
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"extern const short yylhs[];",
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"extern const short yylen[];",
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"extern const short yydefred[];",
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"extern const short yydgoto[];",
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"extern const short yysindex[];",
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"extern const short yyrindex[];",
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"extern const short yygindex[];",
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"extern const short yytable[];",
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"extern const short yycheck[];",
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"#if YYDEBUG",
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"extern char *yyname[];",
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"extern char *yyrule[];",
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"#endif",
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0
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};
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char *header[] =
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{
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"#if YYDEBUG",
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"#include <stdio.h>",
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"#endif",
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"#ifdef YYSTACKSIZE",
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"#undef YYMAXDEPTH",
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"#define YYMAXDEPTH YYSTACKSIZE",
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"#else",
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"#ifdef YYMAXDEPTH",
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"#define YYSTACKSIZE YYMAXDEPTH",
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"#else",
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"#define YYSTACKSIZE 10000",
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"#define YYMAXDEPTH 10000",
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"#endif",
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"#endif",
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"#define YYINITSTACKSIZE 200",
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"int yydebug;",
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"int yynerrs;",
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"int yyerrflag;",
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"int yychar;",
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"short *yyssp;",
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"YYSTYPE *yyvsp;",
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"YYSTYPE yyval;",
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"YYSTYPE yylval;",
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"short *yyss;",
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"short *yysslim;",
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"YYSTYPE *yyvs;",
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"int yystacksize;",
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0
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};
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char *body[] =
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{
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"/* allocate initial stack or double stack size, up to YYMAXDEPTH */",
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"static int yygrowstack()",
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"{",
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" int newsize, i;",
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" short *newss;",
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" YYSTYPE *newvs;",
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"",
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" if ((newsize = yystacksize) == 0)",
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" newsize = YYINITSTACKSIZE;",
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" else if (newsize >= YYMAXDEPTH)",
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" return -1;",
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" else if ((newsize *= 2) > YYMAXDEPTH)",
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" newsize = YYMAXDEPTH;",
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" i = yyssp - yyss;",
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" newss = yyss ? (short *)realloc(yyss, newsize * sizeof *newss) :",
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" (short *)malloc(newsize * sizeof *newss);",
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" if (newss == NULL)",
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" return -1;",
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" yyss = newss;",
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" yyssp = newss + i;",
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" newvs = yyvs ? (YYSTYPE *)realloc(yyvs, newsize * sizeof *newvs) :",
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" (YYSTYPE *)malloc(newsize * sizeof *newvs);",
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" if (newvs == NULL)",
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" return -1;",
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" yyvs = newvs;",
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" yyvsp = newvs + i;",
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" yystacksize = newsize;",
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" yysslim = yyss + newsize - 1;",
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" return 0;",
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"}",
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"",
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"#define YYABORT goto yyabort",
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"#define YYREJECT goto yyabort",
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"#define YYACCEPT goto yyaccept",
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"#define YYERROR goto yyerrlab",
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"",
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"#ifndef YYPARSE_PARAM",
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"#if defined(__cplusplus) || __STDC__",
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"#define YYPARSE_PARAM_ARG void",
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"#define YYPARSE_PARAM_DECL",
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"#else /* ! ANSI-C/C++ */",
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"#define YYPARSE_PARAM_ARG",
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"#define YYPARSE_PARAM_DECL",
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"#endif /* ANSI-C/C++ */",
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"#else /* YYPARSE_PARAM */",
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"#ifndef YYPARSE_PARAM_TYPE",
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"#define YYPARSE_PARAM_TYPE void *",
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"#endif",
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"#if defined(__cplusplus) || __STDC__",
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"#define YYPARSE_PARAM_ARG YYPARSE_PARAM_TYPE YYPARSE_PARAM",
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"#define YYPARSE_PARAM_DECL",
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"#else /* ! ANSI-C/C++ */",
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"#define YYPARSE_PARAM_ARG YYPARSE_PARAM",
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"#define YYPARSE_PARAM_DECL YYPARSE_PARAM_TYPE YYPARSE_PARAM;",
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"#endif /* ANSI-C/C++ */",
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"#endif /* ! YYPARSE_PARAM */",
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"",
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"int",
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"yyparse (YYPARSE_PARAM_ARG)",
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" YYPARSE_PARAM_DECL",
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"{",
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" register int yym, yyn, yystate;",
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"#if YYDEBUG",
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" register const char *yys;",
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"",
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" if ((yys = getenv(\"YYDEBUG\")))",
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" {",
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" yyn = *yys;",
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" if (yyn >= '0' && yyn <= '9')",
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" yydebug = yyn - '0';",
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" }",
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"#endif",
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"",
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" yynerrs = 0;",
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" yyerrflag = 0;",
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" yychar = (-1);",
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"",
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" if (yyss == NULL && yygrowstack()) goto yyoverflow;",
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" yyssp = yyss;",
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" yyvsp = yyvs;",
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" *yyssp = yystate = 0;",
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"",
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"yyloop:",
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" if ((yyn = yydefred[yystate])) goto yyreduce;",
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" if (yychar < 0)",
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" {",
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" if ((yychar = yylex()) < 0) yychar = 0;",
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"#if YYDEBUG",
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" if (yydebug)",
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" {",
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" yys = 0;",
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" if (yychar <= YYMAXTOKEN) yys = yyname[yychar];",
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" if (!yys) yys = \"illegal-symbol\";",
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" printf(\"%sdebug: state %d, reading %d (%s)\\n\",",
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" YYPREFIX, yystate, yychar, yys);",
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" }",
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"#endif",
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" }",
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" if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&",
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" yyn <= YYTABLESIZE && yycheck[yyn] == yychar)",
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" {",
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"#if YYDEBUG",
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" if (yydebug)",
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" printf(\"%sdebug: state %d, shifting to state %d\\n\",",
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" YYPREFIX, yystate, yytable[yyn]);",
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"#endif",
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" if (yyssp >= yysslim && yygrowstack())",
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" {",
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" goto yyoverflow;",
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" }",
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" *++yyssp = yystate = yytable[yyn];",
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" *++yyvsp = yylval;",
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" yychar = (-1);",
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" if (yyerrflag > 0) --yyerrflag;",
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" goto yyloop;",
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" }",
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" if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&",
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" yyn <= YYTABLESIZE && yycheck[yyn] == yychar)",
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" {",
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" yyn = yytable[yyn];",
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" goto yyreduce;",
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" }",
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" if (yyerrflag) goto yyinrecovery;",
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"#if defined(lint) || defined(__GNUC__)",
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" goto yynewerror;",
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"#endif",
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"yynewerror:",
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" yyerror(\"syntax error\");",
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"#if defined(lint) || defined(__GNUC__)",
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" goto yyerrlab;",
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"#endif",
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"yyerrlab:",
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" ++yynerrs;",
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"yyinrecovery:",
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" if (yyerrflag < 3)",
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" {",
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" yyerrflag = 3;",
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" for (;;)",
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" {",
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" if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE) >= 0 &&",
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" yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)",
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" {",
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"#if YYDEBUG",
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" if (yydebug)",
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" printf(\"%sdebug: state %d, error recovery shifting\\",
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" to state %d\\n\", YYPREFIX, *yyssp, yytable[yyn]);",
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"#endif",
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" if (yyssp >= yysslim && yygrowstack())",
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" {",
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" goto yyoverflow;",
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" }",
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" *++yyssp = yystate = yytable[yyn];",
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" *++yyvsp = yylval;",
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" goto yyloop;",
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" }",
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" else",
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" {",
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"#if YYDEBUG",
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" if (yydebug)",
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" printf(\"%sdebug: error recovery discarding state %d\
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\\n\",",
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" YYPREFIX, *yyssp);",
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"#endif",
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" if (yyssp <= yyss) goto yyabort;",
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" --yyssp;",
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" --yyvsp;",
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" }",
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" }",
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" }",
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" else",
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" {",
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" if (yychar == 0) goto yyabort;",
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"#if YYDEBUG",
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" if (yydebug)",
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" {",
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" yys = 0;",
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" if (yychar <= YYMAXTOKEN) yys = yyname[yychar];",
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" if (!yys) yys = \"illegal-symbol\";",
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" printf(\"%sdebug: state %d, error recovery discards token %d\
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(%s)\\n\",",
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" YYPREFIX, yystate, yychar, yys);",
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" }",
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"#endif",
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" yychar = (-1);",
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" goto yyloop;",
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" }",
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"yyreduce:",
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"#if YYDEBUG",
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" if (yydebug)",
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" printf(\"%sdebug: state %d, reducing by rule %d (%s)\\n\",",
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" YYPREFIX, yystate, yyn, yyrule[yyn]);",
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"#endif",
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" yym = yylen[yyn];",
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" yyval = yyvsp[1-yym];",
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" switch (yyn)",
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" {",
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0
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};
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char *trailer[] =
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{
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" }",
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" yyssp -= yym;",
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" yystate = *yyssp;",
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" yyvsp -= yym;",
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" yym = yylhs[yyn];",
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" if (yystate == 0 && yym == 0)",
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" {",
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"#if YYDEBUG",
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" if (yydebug)",
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" printf(\"%sdebug: after reduction, shifting from state 0 to\\",
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" state %d\\n\", YYPREFIX, YYFINAL);",
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"#endif",
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" yystate = YYFINAL;",
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" *++yyssp = YYFINAL;",
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" *++yyvsp = yyval;",
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" if (yychar < 0)",
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" {",
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" if ((yychar = yylex()) < 0) yychar = 0;",
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"#if YYDEBUG",
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" if (yydebug)",
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" {",
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" yys = 0;",
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" if (yychar <= YYMAXTOKEN) yys = yyname[yychar];",
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" if (!yys) yys = \"illegal-symbol\";",
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" printf(\"%sdebug: state %d, reading %d (%s)\\n\",",
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" YYPREFIX, YYFINAL, yychar, yys);",
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" }",
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"#endif",
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" }",
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" if (yychar == 0) goto yyaccept;",
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" goto yyloop;",
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" }",
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" if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&",
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" yyn <= YYTABLESIZE && yycheck[yyn] == yystate)",
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" yystate = yytable[yyn];",
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" else",
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" yystate = yydgoto[yym];",
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"#if YYDEBUG",
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" if (yydebug)",
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" printf(\"%sdebug: after reduction, shifting from state %d \\",
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"to state %d\\n\", YYPREFIX, *yyssp, yystate);",
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"#endif",
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" if (yyssp >= yysslim && yygrowstack())",
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" {",
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" goto yyoverflow;",
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" }",
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" *++yyssp = yystate;",
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" *++yyvsp = yyval;",
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" goto yyloop;",
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"yyoverflow:",
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" yyerror(\"yacc stack overflow\");",
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"yyabort:",
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" return (1);",
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"yyaccept:",
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" return (0);",
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"}",
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0
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};
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void
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write_section(section)
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char *section[];
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{
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register int c;
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register int i;
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register char *s;
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register FILE *f;
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f = code_file;
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for (i = 0; (s = section[i]); ++i)
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{
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++outline;
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while ((c = *s))
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{
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putc(c, f);
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++s;
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}
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putc('\n', f);
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}
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}
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