507 lines
12 KiB
C
507 lines
12 KiB
C
/* original parser id follows */
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/* yysccsid[] = "@(#)yaccpar 1.9 (Berkeley) 02/21/93" */
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/* (use YYMAJOR/YYMINOR for ifdefs dependent on parser version) */
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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 YYCHECK "yyyymmdd"
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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 YYENOMEM (-2)
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#define YYEOF 0
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#ifndef yyparse
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#define yyparse err_syntax20_parse
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#endif /* yyparse */
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#ifndef yylex
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#define yylex err_syntax20_lex
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#endif /* yylex */
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#ifndef yyerror
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#define yyerror err_syntax20_error
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#endif /* yyerror */
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#ifndef yychar
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#define yychar err_syntax20_char
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#endif /* yychar */
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#ifndef yyval
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#define yyval err_syntax20_val
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#endif /* yyval */
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#ifndef yylval
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#define yylval err_syntax20_lval
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#endif /* yylval */
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#ifndef yydebug
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#define yydebug err_syntax20_debug
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#endif /* yydebug */
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#ifndef yynerrs
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#define yynerrs err_syntax20_nerrs
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#endif /* yynerrs */
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#ifndef yyerrflag
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#define yyerrflag err_syntax20_errflag
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#endif /* yyerrflag */
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#ifndef yylhs
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#define yylhs err_syntax20_lhs
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#endif /* yylhs */
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#ifndef yylen
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#define yylen err_syntax20_len
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#endif /* yylen */
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#ifndef yydefred
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#define yydefred err_syntax20_defred
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#endif /* yydefred */
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#ifndef yydgoto
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#define yydgoto err_syntax20_dgoto
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#endif /* yydgoto */
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#ifndef yysindex
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#define yysindex err_syntax20_sindex
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#endif /* yysindex */
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#ifndef yyrindex
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#define yyrindex err_syntax20_rindex
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#endif /* yyrindex */
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#ifndef yygindex
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#define yygindex err_syntax20_gindex
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#endif /* yygindex */
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#ifndef yytable
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#define yytable err_syntax20_table
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#endif /* yytable */
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#ifndef yycheck
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#define yycheck err_syntax20_check
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#endif /* yycheck */
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#ifndef yyname
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#define yyname err_syntax20_name
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#endif /* yyname */
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#ifndef yyrule
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#define yyrule err_syntax20_rule
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#endif /* yyrule */
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#define YYPREFIX "err_syntax20_"
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#define YYPURE 0
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#line 2 "err_syntax20.y"
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int yylex(void);
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static void yyerror(const char *);
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#line 104 "err_syntax20.tab.c"
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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 recur 257
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#define YYERRCODE 256
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typedef int YYINT;
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static const YYINT err_syntax20_lhs[] = { -1,
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0,
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};
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static const YYINT err_syntax20_len[] = { 2,
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3,
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};
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static const YYINT err_syntax20_defred[] = { 0,
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0, 0, 0, 1,
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};
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static const YYINT err_syntax20_dgoto[] = { 2,
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};
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static const YYINT err_syntax20_sindex[] = { -40,
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-256, 0, -39, 0,
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};
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static const YYINT err_syntax20_rindex[] = { 0,
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0, 0, 0, 0,
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};
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static const YYINT err_syntax20_gindex[] = { 0,
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};
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#define YYTABLESIZE 2
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static const YYINT err_syntax20_table[] = { 1,
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3, 4,
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};
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static const YYINT err_syntax20_check[] = { 40,
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257, 41,
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};
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#define YYFINAL 2
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#ifndef YYDEBUG
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#define YYDEBUG 0
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#endif
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#define YYMAXTOKEN 257
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#define YYUNDFTOKEN 260
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#define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a))
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#if YYDEBUG
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static const char *const err_syntax20_name[] = {
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"end-of-file",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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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,
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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,
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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,
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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,
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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,
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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,"recur",0,0,
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"illegal-symbol",
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};
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static const char *const err_syntax20_rule[] = {
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"$accept : expr",
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"expr : '(' recur ')'",
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};
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#endif
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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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YYSTYPE yyval;
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YYSTYPE yylval;
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/* define the initial stack-sizes */
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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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typedef struct {
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unsigned stacksize;
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YYINT *s_base;
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YYINT *s_mark;
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YYINT *s_last;
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YYSTYPE *l_base;
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YYSTYPE *l_mark;
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} YYSTACKDATA;
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/* variables for the parser stack */
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static YYSTACKDATA yystack;
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#line 16 "err_syntax20.y"
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#include <stdio.h>
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int
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main(void)
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{
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printf("yyparse() = %d\n", yyparse());
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return 0;
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}
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int
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yylex(void)
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{
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return -1;
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}
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static void
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yyerror(const char* s)
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{
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printf("%s\n", s);
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}
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#line 247 "err_syntax20.tab.c"
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#if YYDEBUG
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#include <stdio.h> /* needed for printf */
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#endif
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#include <stdlib.h> /* needed for malloc, etc */
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#include <string.h> /* needed for memset */
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/* allocate initial stack or double stack size, up to YYMAXDEPTH */
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static int yygrowstack(YYSTACKDATA *data)
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{
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int i;
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unsigned newsize;
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YYINT *newss;
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YYSTYPE *newvs;
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if ((newsize = data->stacksize) == 0)
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newsize = YYINITSTACKSIZE;
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else if (newsize >= YYMAXDEPTH)
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return YYENOMEM;
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else if ((newsize *= 2) > YYMAXDEPTH)
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newsize = YYMAXDEPTH;
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i = (int) (data->s_mark - data->s_base);
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newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss));
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if (newss == 0)
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return YYENOMEM;
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data->s_base = newss;
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data->s_mark = newss + i;
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newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));
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if (newvs == 0)
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return YYENOMEM;
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data->l_base = newvs;
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data->l_mark = newvs + i;
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data->stacksize = newsize;
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data->s_last = data->s_base + newsize - 1;
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return 0;
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}
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#if YYPURE || defined(YY_NO_LEAKS)
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static void yyfreestack(YYSTACKDATA *data)
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{
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free(data->s_base);
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free(data->l_base);
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memset(data, 0, sizeof(*data));
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}
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#else
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#define yyfreestack(data) /* nothing */
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#endif
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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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int
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YYPARSE_DECL()
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{
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int yym, yyn, yystate;
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#if YYDEBUG
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const char *yys;
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if ((yys = getenv("YYDEBUG")) != 0)
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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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yym = 0;
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yyn = 0;
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yynerrs = 0;
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yyerrflag = 0;
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yychar = YYEMPTY;
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yystate = 0;
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#if YYPURE
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memset(&yystack, 0, sizeof(yystack));
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#endif
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if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
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yystack.s_mark = yystack.s_base;
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yystack.l_mark = yystack.l_base;
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yystate = 0;
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*yystack.s_mark = 0;
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yyloop:
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if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
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if (yychar < 0)
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{
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yychar = YYLEX;
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if (yychar < 0) yychar = YYEOF;
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#if YYDEBUG
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if (yydebug)
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{
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if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
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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]) != 0) && (yyn += yychar) >= 0 &&
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yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) 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 (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
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yystate = yytable[yyn];
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*++yystack.s_mark = yytable[yyn];
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*++yystack.l_mark = yylval;
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yychar = YYEMPTY;
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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]) != 0) && (yyn += yychar) >= 0 &&
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yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) 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 != 0) goto yyinrecovery;
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YYERROR_CALL("syntax error");
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goto yyerrlab; /* redundant goto avoids 'unused label' warning */
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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[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 &&
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yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) 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, *yystack.s_mark, yytable[yyn]);
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#endif
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if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
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yystate = yytable[yyn];
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*++yystack.s_mark = yytable[yyn];
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*++yystack.l_mark = 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\n",
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YYPREFIX, *yystack.s_mark);
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#endif
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if (yystack.s_mark <= yystack.s_base) goto yyabort;
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--yystack.s_mark;
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--yystack.l_mark;
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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 == YYEOF) goto yyabort;
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#if YYDEBUG
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if (yydebug)
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{
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if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
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printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
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YYPREFIX, yystate, yychar, yys);
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}
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#endif
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yychar = YYEMPTY;
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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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if (yym > 0)
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yyval = yystack.l_mark[1-yym];
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else
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memset(&yyval, 0, sizeof yyval);
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switch (yyn)
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{
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case 1:
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#line 12 "err_syntax20.y"
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{ yystack.l_mark[-1].rechk = 3; }
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break;
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#line 450 "err_syntax20.tab.c"
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}
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yystack.s_mark -= yym;
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yystate = *yystack.s_mark;
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yystack.l_mark -= 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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*++yystack.s_mark = YYFINAL;
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*++yystack.l_mark = yyval;
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if (yychar < 0)
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{
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yychar = YYLEX;
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if (yychar < 0) yychar = YYEOF;
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#if YYDEBUG
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if (yydebug)
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{
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if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
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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 == YYEOF) goto yyaccept;
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goto yyloop;
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}
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if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 &&
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yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) 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, *yystack.s_mark, yystate);
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#endif
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if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
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*++yystack.s_mark = (YYINT) yystate;
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*++yystack.l_mark = yyval;
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goto yyloop;
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yyoverflow:
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YYERROR_CALL("yacc stack overflow");
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yyabort:
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yyfreestack(&yystack);
|
|
return (1);
|
|
|
|
yyaccept:
|
|
yyfreestack(&yystack);
|
|
return (0);
|
|
}
|