1151 lines
36 KiB
Plaintext
1151 lines
36 KiB
Plaintext
/* $Id: btyaccpar.skel,v 1.7 2017/05/01 00:13:19 tom Exp $ */
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#include "defs.h"
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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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%% banner
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/* 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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%% insert VERSION here
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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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%% xdecls
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extern int YYPARSE_DECL();
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%% tables
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extern const YYINT yylhs[];
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extern const YYINT yylen[];
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extern const YYINT yydefred[];
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extern const YYINT yystos[];
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extern const YYINT yydgoto[];
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extern const YYINT yysindex[];
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extern const YYINT yyrindex[];
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%%ifdef YYBTYACC
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extern const YYINT yycindex[];
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%%endif
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extern const YYINT yygindex[];
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extern const YYINT yytable[];
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extern const YYINT yycheck[];
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%%ifdef YYBTYACC
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extern const YYINT yyctable[];
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%%endif
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#if YYDEBUG || defined(yytname)
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extern const char *const yyname[];
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#endif
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#if YYDEBUG
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extern const char *const yyrule[];
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#endif
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%% global_vars
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int yydebug;
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int yynerrs;
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%% impure_vars
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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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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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YYLTYPE yyloc; /* position returned by actions */
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YYLTYPE yylloc; /* position from the lexer */
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#endif
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%% hdr_defs
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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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#ifndef YYLLOC_DEFAULT
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#define YYLLOC_DEFAULT(loc, rhs, n) \
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do \
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{ \
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if (n == 0) \
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{ \
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(loc).first_line = ((rhs)[-1]).last_line; \
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(loc).first_column = ((rhs)[-1]).last_column; \
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(loc).last_line = ((rhs)[-1]).last_line; \
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(loc).last_column = ((rhs)[-1]).last_column; \
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} \
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else \
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{ \
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(loc).first_line = ((rhs)[ 0 ]).first_line; \
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(loc).first_column = ((rhs)[ 0 ]).first_column; \
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(loc).last_line = ((rhs)[n-1]).last_line; \
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(loc).last_column = ((rhs)[n-1]).last_column; \
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} \
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} while (0)
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#endif /* YYLLOC_DEFAULT */
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#endif /* defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED) */
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%%ifdef YYBTYACC
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#ifndef YYLVQUEUEGROWTH
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#define YYLVQUEUEGROWTH 32
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#endif
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%%endif
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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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#ifndef YYINITSTACKSIZE
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#define YYINITSTACKSIZE 200
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#endif
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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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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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YYLTYPE *p_base;
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YYLTYPE *p_mark;
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#endif
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} YYSTACKDATA;
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%%ifdef YYBTYACC
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struct YYParseState_s
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{
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struct YYParseState_s *save; /* Previously saved parser state */
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YYSTACKDATA yystack; /* saved parser stack */
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int state; /* saved parser state */
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int errflag; /* saved error recovery status */
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int lexeme; /* saved index of the conflict lexeme in the lexical queue */
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YYINT ctry; /* saved index in yyctable[] for this conflict */
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};
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typedef struct YYParseState_s YYParseState;
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%%endif YYBTYACC
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%% hdr_vars
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/* variables for the parser stack */
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static YYSTACKDATA yystack;
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%%ifdef YYBTYACC
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/* Current parser state */
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static YYParseState *yyps = 0;
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/* yypath != NULL: do the full parse, starting at *yypath parser state. */
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static YYParseState *yypath = 0;
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/* Base of the lexical value queue */
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static YYSTYPE *yylvals = 0;
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/* Current position at lexical value queue */
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static YYSTYPE *yylvp = 0;
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/* End position of lexical value queue */
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static YYSTYPE *yylve = 0;
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/* The last allocated position at the lexical value queue */
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static YYSTYPE *yylvlim = 0;
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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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/* Base of the lexical position queue */
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static YYLTYPE *yylpsns = 0;
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/* Current position at lexical position queue */
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static YYLTYPE *yylpp = 0;
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/* End position of lexical position queue */
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static YYLTYPE *yylpe = 0;
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/* The last allocated position at the lexical position queue */
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static YYLTYPE *yylplim = 0;
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#endif
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/* Current position at lexical token queue */
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static YYINT *yylexp = 0;
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static YYINT *yylexemes = 0;
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%%endif YYBTYACC
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%% body_vars
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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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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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YYLTYPE yyloc; /* position returned by actions */
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YYLTYPE yylloc; /* position from the lexer */
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#endif
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/* variables for the parser stack */
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YYSTACKDATA yystack;
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%%ifdef YYBTYACC
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/* Current parser state */
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static YYParseState *yyps = 0;
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/* yypath != NULL: do the full parse, starting at *yypath parser state. */
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static YYParseState *yypath = 0;
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/* Base of the lexical value queue */
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static YYSTYPE *yylvals = 0;
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/* Current position at lexical value queue */
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static YYSTYPE *yylvp = 0;
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/* End position of lexical value queue */
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static YYSTYPE *yylve = 0;
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/* The last allocated position at the lexical value queue */
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static YYSTYPE *yylvlim = 0;
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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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/* Base of the lexical position queue */
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static YYLTYPE *yylpsns = 0;
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/* Current position at lexical position queue */
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static YYLTYPE *yylpp = 0;
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/* End position of lexical position queue */
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static YYLTYPE *yylpe = 0;
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/* The last allocated position at the lexical position queue */
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static YYLTYPE *yylplim = 0;
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#endif
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/* Current position at lexical token queue */
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static YYINT *yylexp = 0;
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static YYINT *yylexemes = 0;
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%%endif YYBTYACC
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%% body_1
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/* For use in generated program */
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#define yydepth (int)(yystack.s_mark - yystack.s_base)
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%%ifdef YYBTYACC
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#define yytrial (yyps->save)
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%%endif
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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 defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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YYLTYPE *newps;
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#endif
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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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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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newps = (YYLTYPE *)realloc(data->p_base, newsize * sizeof(*newps));
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if (newps == 0)
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return YYENOMEM;
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data->p_base = newps;
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data->p_mark = newps + i;
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#endif
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data->stacksize = newsize;
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data->s_last = data->s_base + newsize - 1;
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#if YYDEBUG
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if (yydebug)
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fprintf(stderr, "%sdebug: stack size increased to %d\n", YYPREFIX, newsize);
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#endif
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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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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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free(data->p_base);
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#endif
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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 /* YYPURE || defined(YY_NO_LEAKS) */
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%%ifdef YYBTYACC
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static YYParseState *
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yyNewState(unsigned size)
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{
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YYParseState *p = (YYParseState *) malloc(sizeof(YYParseState));
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if (p == NULL) return NULL;
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p->yystack.stacksize = size;
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if (size == 0)
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{
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p->yystack.s_base = NULL;
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p->yystack.l_base = NULL;
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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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p->yystack.p_base = NULL;
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#endif
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return p;
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}
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p->yystack.s_base = (YYINT *) malloc(size * sizeof(YYINT));
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if (p->yystack.s_base == NULL) return NULL;
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p->yystack.l_base = (YYSTYPE *) malloc(size * sizeof(YYSTYPE));
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if (p->yystack.l_base == NULL) return NULL;
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memset(p->yystack.l_base, 0, size * sizeof(YYSTYPE));
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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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p->yystack.p_base = (YYLTYPE *) malloc(size * sizeof(YYLTYPE));
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if (p->yystack.p_base == NULL) return NULL;
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memset(p->yystack.p_base, 0, size * sizeof(YYLTYPE));
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#endif
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return p;
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}
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static void
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yyFreeState(YYParseState *p)
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{
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yyfreestack(&p->yystack);
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free(p);
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}
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%%endif YYBTYACC
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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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%%ifdef YYBTYACC
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#define YYVALID do { if (yyps->save) goto yyvalid; } while(0)
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#define YYVALID_NESTED do { if (yyps->save && \
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yyps->save->save == 0) goto yyvalid; } while(0)
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%%endif
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int
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YYPARSE_DECL()
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{
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%% body_2
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int yym, yyn, yystate, yyresult;
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%%ifdef YYBTYACC
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int yynewerrflag;
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YYParseState *yyerrctx = NULL;
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%%endif
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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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YYLTYPE yyerror_loc_range[2]; /* position of error start & end */
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#endif
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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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if (yydebug)
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fprintf(stderr, "%sdebug[<# of symbols on state stack>]\n", YYPREFIX);
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#endif
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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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memset(yyerror_loc_range, 0, sizeof(yyerror_loc_range));
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#endif
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%% init_vars
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yyerrflag = 0;
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yychar = 0;
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memset(&yyval, 0, sizeof(yyval));
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memset(&yylval, 0, sizeof(yylval));
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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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memset(&yyloc, 0, sizeof(yyloc));
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memset(&yylloc, 0, sizeof(yylloc));
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#endif
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%% body_3
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%%ifdef YYBTYACC
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yyps = yyNewState(0); if (yyps == 0) goto yyenomem;
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yyps->save = 0;
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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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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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yystack.p_mark = yystack.p_base;
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#endif
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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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%%ifdef YYBTYACC
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do {
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if (yylvp < yylve)
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{
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/* we're currently re-reading tokens */
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yylval = *yylvp++;
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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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yylloc = *yylpp++;
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#endif
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yychar = *yylexp++;
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break;
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}
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if (yyps->save)
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{
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/* in trial mode; save scanner results for future parse attempts */
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if (yylvp == yylvlim)
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{ /* Enlarge lexical value queue */
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size_t p = (size_t) (yylvp - yylvals);
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size_t s = (size_t) (yylvlim - yylvals);
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s += YYLVQUEUEGROWTH;
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if ((yylexemes = realloc(yylexemes, s * sizeof(YYINT))) == NULL) goto yyenomem;
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if ((yylvals = realloc(yylvals, s * sizeof(YYSTYPE))) == NULL) goto yyenomem;
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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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if ((yylpsns = realloc(yylpsns, s * sizeof(YYLTYPE))) == NULL) goto yyenomem;
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#endif
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yylvp = yylve = yylvals + p;
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yylvlim = yylvals + s;
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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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yylpp = yylpe = yylpsns + p;
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yylplim = yylpsns + s;
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#endif
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yylexp = yylexemes + p;
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}
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*yylexp = (YYINT) YYLEX;
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*yylvp++ = yylval;
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yylve++;
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#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
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*yylpp++ = yylloc;
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yylpe++;
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#endif
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yychar = *yylexp++;
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break;
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}
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/* normal operation, no conflict encountered */
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%%endif YYBTYACC
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yychar = YYLEX;
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%%ifdef YYBTYACC
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} while (0);
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%%endif
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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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fprintf(stderr, "%s[%d]: state %d, reading token %d (%s)",
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YYDEBUGSTR, yydepth, yystate, yychar, yys);
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#ifdef YYSTYPE_TOSTRING
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%%ifdef YYBTYACC
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if (!yytrial)
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%%endif
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fprintf(stderr, " <%s>", YYSTYPE_TOSTRING(yychar, yylval));
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#endif
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fputc('\n', stderr);
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}
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#endif
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}
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%%ifdef YYBTYACC
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/* Do we have a conflict? */
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if (((yyn = yycindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
|
|
yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
|
|
{
|
|
YYINT ctry;
|
|
|
|
if (yypath)
|
|
{
|
|
YYParseState *save;
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
fprintf(stderr, "%s[%d]: CONFLICT in state %d: following successful trial parse\n",
|
|
YYDEBUGSTR, yydepth, yystate);
|
|
#endif
|
|
/* Switch to the next conflict context */
|
|
save = yypath;
|
|
yypath = save->save;
|
|
save->save = NULL;
|
|
ctry = save->ctry;
|
|
if (save->state != yystate) YYABORT;
|
|
yyFreeState(save);
|
|
|
|
}
|
|
else
|
|
{
|
|
|
|
/* Unresolved conflict - start/continue trial parse */
|
|
YYParseState *save;
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
{
|
|
fprintf(stderr, "%s[%d]: CONFLICT in state %d. ", YYDEBUGSTR, yydepth, yystate);
|
|
if (yyps->save)
|
|
fputs("ALREADY in conflict, continuing trial parse.\n", stderr);
|
|
else
|
|
fputs("Starting trial parse.\n", stderr);
|
|
}
|
|
#endif
|
|
save = yyNewState((unsigned)(yystack.s_mark - yystack.s_base + 1));
|
|
if (save == NULL) goto yyenomem;
|
|
save->save = yyps->save;
|
|
save->state = yystate;
|
|
save->errflag = yyerrflag;
|
|
save->yystack.s_mark = save->yystack.s_base + (yystack.s_mark - yystack.s_base);
|
|
memcpy (save->yystack.s_base, yystack.s_base, (size_t) (yystack.s_mark - yystack.s_base + 1) * sizeof(YYINT));
|
|
save->yystack.l_mark = save->yystack.l_base + (yystack.l_mark - yystack.l_base);
|
|
memcpy (save->yystack.l_base, yystack.l_base, (size_t) (yystack.l_mark - yystack.l_base + 1) * sizeof(YYSTYPE));
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
save->yystack.p_mark = save->yystack.p_base + (yystack.p_mark - yystack.p_base);
|
|
memcpy (save->yystack.p_base, yystack.p_base, (size_t) (yystack.p_mark - yystack.p_base + 1) * sizeof(YYLTYPE));
|
|
#endif
|
|
ctry = yytable[yyn];
|
|
if (yyctable[ctry] == -1)
|
|
{
|
|
#if YYDEBUG
|
|
if (yydebug && yychar >= YYEOF)
|
|
fprintf(stderr, "%s[%d]: backtracking 1 token\n", YYDEBUGSTR, yydepth);
|
|
#endif
|
|
ctry++;
|
|
}
|
|
save->ctry = ctry;
|
|
if (yyps->save == NULL)
|
|
{
|
|
/* If this is a first conflict in the stack, start saving lexemes */
|
|
if (!yylexemes)
|
|
{
|
|
yylexemes = malloc((YYLVQUEUEGROWTH) * sizeof(YYINT));
|
|
if (yylexemes == NULL) goto yyenomem;
|
|
yylvals = (YYSTYPE *) malloc((YYLVQUEUEGROWTH) * sizeof(YYSTYPE));
|
|
if (yylvals == NULL) goto yyenomem;
|
|
yylvlim = yylvals + YYLVQUEUEGROWTH;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yylpsns = (YYLTYPE *) malloc((YYLVQUEUEGROWTH) * sizeof(YYLTYPE));
|
|
if (yylpsns == NULL) goto yyenomem;
|
|
yylplim = yylpsns + YYLVQUEUEGROWTH;
|
|
#endif
|
|
}
|
|
if (yylvp == yylve)
|
|
{
|
|
yylvp = yylve = yylvals;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yylpp = yylpe = yylpsns;
|
|
#endif
|
|
yylexp = yylexemes;
|
|
if (yychar >= YYEOF)
|
|
{
|
|
*yylve++ = yylval;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
*yylpe++ = yylloc;
|
|
#endif
|
|
*yylexp = (YYINT) yychar;
|
|
yychar = YYEMPTY;
|
|
}
|
|
}
|
|
}
|
|
if (yychar >= YYEOF)
|
|
{
|
|
yylvp--;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yylpp--;
|
|
#endif
|
|
yylexp--;
|
|
yychar = YYEMPTY;
|
|
}
|
|
save->lexeme = (int) (yylvp - yylvals);
|
|
yyps->save = save;
|
|
}
|
|
if (yytable[yyn] == ctry)
|
|
{
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
fprintf(stderr, "%s[%d]: state %d, shifting to state %d\n",
|
|
YYDEBUGSTR, yydepth, yystate, yyctable[ctry]);
|
|
#endif
|
|
if (yychar < 0)
|
|
{
|
|
yylvp++;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yylpp++;
|
|
#endif
|
|
yylexp++;
|
|
}
|
|
if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM)
|
|
goto yyoverflow;
|
|
yystate = yyctable[ctry];
|
|
*++yystack.s_mark = (YYINT) yystate;
|
|
*++yystack.l_mark = yylval;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
*++yystack.p_mark = yylloc;
|
|
#endif
|
|
yychar = YYEMPTY;
|
|
if (yyerrflag > 0) --yyerrflag;
|
|
goto yyloop;
|
|
}
|
|
else
|
|
{
|
|
yyn = yyctable[ctry];
|
|
goto yyreduce;
|
|
}
|
|
} /* End of code dealing with conflicts */
|
|
%%endif YYBTYACC
|
|
if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
|
|
yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
|
|
{
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
fprintf(stderr, "%s[%d]: state %d, shifting to state %d\n",
|
|
YYDEBUGSTR, yydepth, yystate, yytable[yyn]);
|
|
#endif
|
|
if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
|
|
yystate = yytable[yyn];
|
|
*++yystack.s_mark = yytable[yyn];
|
|
*++yystack.l_mark = yylval;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
*++yystack.p_mark = yylloc;
|
|
#endif
|
|
yychar = YYEMPTY;
|
|
if (yyerrflag > 0) --yyerrflag;
|
|
goto yyloop;
|
|
}
|
|
if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 &&
|
|
yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)
|
|
{
|
|
yyn = yytable[yyn];
|
|
goto yyreduce;
|
|
}
|
|
if (yyerrflag != 0) goto yyinrecovery;
|
|
%%ifdef YYBTYACC
|
|
|
|
yynewerrflag = 1;
|
|
goto yyerrhandler;
|
|
goto yyerrlab; /* redundant goto avoids 'unused label' warning */
|
|
|
|
yyerrlab:
|
|
/* explicit YYERROR from an action -- pop the rhs of the rule reduced
|
|
* before looking for error recovery */
|
|
yystack.s_mark -= yym;
|
|
yystate = *yystack.s_mark;
|
|
yystack.l_mark -= yym;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yystack.p_mark -= yym;
|
|
#endif
|
|
|
|
yynewerrflag = 0;
|
|
yyerrhandler:
|
|
while (yyps->save)
|
|
{
|
|
int ctry;
|
|
YYParseState *save = yyps->save;
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
fprintf(stderr, "%s[%d]: ERROR in state %d, CONFLICT BACKTRACKING to state %d, %d tokens\n",
|
|
YYDEBUGSTR, yydepth, yystate, yyps->save->state,
|
|
(int)(yylvp - yylvals - yyps->save->lexeme));
|
|
#endif
|
|
/* Memorize most forward-looking error state in case it's really an error. */
|
|
if (yyerrctx == NULL || yyerrctx->lexeme < yylvp - yylvals)
|
|
{
|
|
/* Free old saved error context state */
|
|
if (yyerrctx) yyFreeState(yyerrctx);
|
|
/* Create and fill out new saved error context state */
|
|
yyerrctx = yyNewState((unsigned)(yystack.s_mark - yystack.s_base + 1));
|
|
if (yyerrctx == NULL) goto yyenomem;
|
|
yyerrctx->save = yyps->save;
|
|
yyerrctx->state = yystate;
|
|
yyerrctx->errflag = yyerrflag;
|
|
yyerrctx->yystack.s_mark = yyerrctx->yystack.s_base + (yystack.s_mark - yystack.s_base);
|
|
memcpy (yyerrctx->yystack.s_base, yystack.s_base, (size_t) (yystack.s_mark - yystack.s_base + 1) * sizeof(YYINT));
|
|
yyerrctx->yystack.l_mark = yyerrctx->yystack.l_base + (yystack.l_mark - yystack.l_base);
|
|
memcpy (yyerrctx->yystack.l_base, yystack.l_base, (size_t) (yystack.l_mark - yystack.l_base + 1) * sizeof(YYSTYPE));
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yyerrctx->yystack.p_mark = yyerrctx->yystack.p_base + (yystack.p_mark - yystack.p_base);
|
|
memcpy (yyerrctx->yystack.p_base, yystack.p_base, (size_t) (yystack.p_mark - yystack.p_base + 1) * sizeof(YYLTYPE));
|
|
#endif
|
|
yyerrctx->lexeme = (int) (yylvp - yylvals);
|
|
}
|
|
yylvp = yylvals + save->lexeme;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yylpp = yylpsns + save->lexeme;
|
|
#endif
|
|
yylexp = yylexemes + save->lexeme;
|
|
yychar = YYEMPTY;
|
|
yystack.s_mark = yystack.s_base + (save->yystack.s_mark - save->yystack.s_base);
|
|
memcpy (yystack.s_base, save->yystack.s_base, (size_t) (yystack.s_mark - yystack.s_base + 1) * sizeof(YYINT));
|
|
yystack.l_mark = yystack.l_base + (save->yystack.l_mark - save->yystack.l_base);
|
|
memcpy (yystack.l_base, save->yystack.l_base, (size_t) (yystack.l_mark - yystack.l_base + 1) * sizeof(YYSTYPE));
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yystack.p_mark = yystack.p_base + (save->yystack.p_mark - save->yystack.p_base);
|
|
memcpy (yystack.p_base, save->yystack.p_base, (size_t) (yystack.p_mark - yystack.p_base + 1) * sizeof(YYLTYPE));
|
|
#endif
|
|
ctry = ++save->ctry;
|
|
yystate = save->state;
|
|
/* We tried shift, try reduce now */
|
|
if ((yyn = yyctable[ctry]) >= 0) goto yyreduce;
|
|
yyps->save = save->save;
|
|
save->save = NULL;
|
|
yyFreeState(save);
|
|
|
|
/* Nothing left on the stack -- error */
|
|
if (!yyps->save)
|
|
{
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
fprintf(stderr, "%sdebug[%d,trial]: trial parse FAILED, entering ERROR mode\n",
|
|
YYPREFIX, yydepth);
|
|
#endif
|
|
/* Restore state as it was in the most forward-advanced error */
|
|
yylvp = yylvals + yyerrctx->lexeme;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yylpp = yylpsns + yyerrctx->lexeme;
|
|
#endif
|
|
yylexp = yylexemes + yyerrctx->lexeme;
|
|
yychar = yylexp[-1];
|
|
yylval = yylvp[-1];
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yylloc = yylpp[-1];
|
|
#endif
|
|
yystack.s_mark = yystack.s_base + (yyerrctx->yystack.s_mark - yyerrctx->yystack.s_base);
|
|
memcpy (yystack.s_base, yyerrctx->yystack.s_base, (size_t) (yystack.s_mark - yystack.s_base + 1) * sizeof(YYINT));
|
|
yystack.l_mark = yystack.l_base + (yyerrctx->yystack.l_mark - yyerrctx->yystack.l_base);
|
|
memcpy (yystack.l_base, yyerrctx->yystack.l_base, (size_t) (yystack.l_mark - yystack.l_base + 1) * sizeof(YYSTYPE));
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yystack.p_mark = yystack.p_base + (yyerrctx->yystack.p_mark - yyerrctx->yystack.p_base);
|
|
memcpy (yystack.p_base, yyerrctx->yystack.p_base, (size_t) (yystack.p_mark - yystack.p_base + 1) * sizeof(YYLTYPE));
|
|
#endif
|
|
yystate = yyerrctx->state;
|
|
yyFreeState(yyerrctx);
|
|
yyerrctx = NULL;
|
|
}
|
|
yynewerrflag = 1;
|
|
}
|
|
if (yynewerrflag == 0) goto yyinrecovery;
|
|
%%endif YYBTYACC
|
|
|
|
YYERROR_CALL("syntax error");
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yyerror_loc_range[0] = yylloc; /* lookahead position is error start position */
|
|
#endif
|
|
|
|
#if !YYBTYACC
|
|
goto yyerrlab; /* redundant goto avoids 'unused label' warning */
|
|
yyerrlab:
|
|
#endif
|
|
++yynerrs;
|
|
|
|
yyinrecovery:
|
|
if (yyerrflag < 3)
|
|
{
|
|
yyerrflag = 3;
|
|
for (;;)
|
|
{
|
|
if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 &&
|
|
yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE)
|
|
{
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
fprintf(stderr, "%s[%d]: state %d, error recovery shifting to state %d\n",
|
|
YYDEBUGSTR, yydepth, *yystack.s_mark, yytable[yyn]);
|
|
#endif
|
|
if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
|
|
yystate = yytable[yyn];
|
|
*++yystack.s_mark = yytable[yyn];
|
|
*++yystack.l_mark = yylval;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
/* lookahead position is error end position */
|
|
yyerror_loc_range[1] = yylloc;
|
|
YYLLOC_DEFAULT(yyloc, yyerror_loc_range, 2); /* position of error span */
|
|
*++yystack.p_mark = yyloc;
|
|
#endif
|
|
goto yyloop;
|
|
}
|
|
else
|
|
{
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
fprintf(stderr, "%s[%d]: error recovery discarding state %d\n",
|
|
YYDEBUGSTR, yydepth, *yystack.s_mark);
|
|
#endif
|
|
if (yystack.s_mark <= yystack.s_base) goto yyabort;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
/* the current TOS position is the error start position */
|
|
yyerror_loc_range[0] = *yystack.p_mark;
|
|
#endif
|
|
#if defined(YYDESTRUCT_CALL)
|
|
%%ifdef YYBTYACC
|
|
if (!yytrial)
|
|
%%endif
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
YYDESTRUCT_CALL("error: discarding state",
|
|
yystos[*yystack.s_mark], yystack.l_mark, yystack.p_mark);
|
|
#else
|
|
YYDESTRUCT_CALL("error: discarding state",
|
|
yystos[*yystack.s_mark], yystack.l_mark);
|
|
#endif /* defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED) */
|
|
#endif /* defined(YYDESTRUCT_CALL) */
|
|
--yystack.s_mark;
|
|
--yystack.l_mark;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
--yystack.p_mark;
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (yychar == YYEOF) goto yyabort;
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
{
|
|
if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
|
|
fprintf(stderr, "%s[%d]: state %d, error recovery discarding token %d (%s)\n",
|
|
YYDEBUGSTR, yydepth, yystate, yychar, yys);
|
|
}
|
|
#endif
|
|
#if defined(YYDESTRUCT_CALL)
|
|
%%ifdef YYBTYACC
|
|
if (!yytrial)
|
|
%%endif
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
YYDESTRUCT_CALL("error: discarding token", yychar, &yylval, &yylloc);
|
|
#else
|
|
YYDESTRUCT_CALL("error: discarding token", yychar, &yylval);
|
|
#endif /* defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED) */
|
|
#endif /* defined(YYDESTRUCT_CALL) */
|
|
yychar = YYEMPTY;
|
|
goto yyloop;
|
|
}
|
|
|
|
yyreduce:
|
|
yym = yylen[yyn];
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
{
|
|
fprintf(stderr, "%s[%d]: state %d, reducing by rule %d (%s)",
|
|
YYDEBUGSTR, yydepth, yystate, yyn, yyrule[yyn]);
|
|
#ifdef YYSTYPE_TOSTRING
|
|
%%ifdef YYBTYACC
|
|
if (!yytrial)
|
|
%%endif
|
|
if (yym > 0)
|
|
{
|
|
int i;
|
|
fputc('<', stderr);
|
|
for (i = yym; i > 0; i--)
|
|
{
|
|
if (i != yym) fputs(", ", stderr);
|
|
fputs(YYSTYPE_TOSTRING(yystos[yystack.s_mark[1-i]],
|
|
yystack.l_mark[1-i]), stderr);
|
|
}
|
|
fputc('>', stderr);
|
|
}
|
|
#endif
|
|
fputc('\n', stderr);
|
|
}
|
|
#endif
|
|
if (yym > 0)
|
|
yyval = yystack.l_mark[1-yym];
|
|
else
|
|
memset(&yyval, 0, sizeof yyval);
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
|
|
/* Perform position reduction */
|
|
memset(&yyloc, 0, sizeof(yyloc));
|
|
%%ifdef YYBTYACC
|
|
if (!yytrial)
|
|
%%endif
|
|
{
|
|
YYLLOC_DEFAULT(yyloc, &yystack.p_mark[1-yym], yym);
|
|
/* just in case YYERROR is invoked within the action, save
|
|
the start of the rhs as the error start position */
|
|
yyerror_loc_range[0] = yystack.p_mark[1-yym];
|
|
}
|
|
#endif
|
|
|
|
switch (yyn)
|
|
{
|
|
%% trailer
|
|
default:
|
|
break;
|
|
}
|
|
yystack.s_mark -= yym;
|
|
yystate = *yystack.s_mark;
|
|
yystack.l_mark -= yym;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yystack.p_mark -= yym;
|
|
#endif
|
|
yym = yylhs[yyn];
|
|
if (yystate == 0 && yym == 0)
|
|
{
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
{
|
|
fprintf(stderr, "%s[%d]: after reduction, ", YYDEBUGSTR, yydepth);
|
|
#ifdef YYSTYPE_TOSTRING
|
|
%%ifdef YYBTYACC
|
|
if (!yytrial)
|
|
%%endif
|
|
fprintf(stderr, "result is <%s>, ", YYSTYPE_TOSTRING(yystos[YYFINAL], yyval));
|
|
#endif
|
|
fprintf(stderr, "shifting from state 0 to final state %d\n", YYFINAL);
|
|
}
|
|
#endif
|
|
yystate = YYFINAL;
|
|
*++yystack.s_mark = YYFINAL;
|
|
*++yystack.l_mark = yyval;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
*++yystack.p_mark = yyloc;
|
|
#endif
|
|
if (yychar < 0)
|
|
{
|
|
%%ifdef YYBTYACC
|
|
do {
|
|
if (yylvp < yylve)
|
|
{
|
|
/* we're currently re-reading tokens */
|
|
yylval = *yylvp++;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yylloc = *yylpp++;
|
|
#endif
|
|
yychar = *yylexp++;
|
|
break;
|
|
}
|
|
if (yyps->save)
|
|
{
|
|
/* in trial mode; save scanner results for future parse attempts */
|
|
if (yylvp == yylvlim)
|
|
{ /* Enlarge lexical value queue */
|
|
size_t p = (size_t) (yylvp - yylvals);
|
|
size_t s = (size_t) (yylvlim - yylvals);
|
|
|
|
s += YYLVQUEUEGROWTH;
|
|
if ((yylexemes = realloc(yylexemes, s * sizeof(YYINT))) == NULL)
|
|
goto yyenomem;
|
|
if ((yylvals = realloc(yylvals, s * sizeof(YYSTYPE))) == NULL)
|
|
goto yyenomem;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
if ((yylpsns = realloc(yylpsns, s * sizeof(YYLTYPE))) == NULL)
|
|
goto yyenomem;
|
|
#endif
|
|
yylvp = yylve = yylvals + p;
|
|
yylvlim = yylvals + s;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yylpp = yylpe = yylpsns + p;
|
|
yylplim = yylpsns + s;
|
|
#endif
|
|
yylexp = yylexemes + p;
|
|
}
|
|
*yylexp = (YYINT) YYLEX;
|
|
*yylvp++ = yylval;
|
|
yylve++;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
*yylpp++ = yylloc;
|
|
yylpe++;
|
|
#endif
|
|
yychar = *yylexp++;
|
|
break;
|
|
}
|
|
/* normal operation, no conflict encountered */
|
|
%%endif YYBTYACC
|
|
yychar = YYLEX;
|
|
%%ifdef YYBTYACC
|
|
} while (0);
|
|
%%endif
|
|
if (yychar < 0) yychar = YYEOF;
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
{
|
|
if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];
|
|
fprintf(stderr, "%s[%d]: state %d, reading token %d (%s)\n",
|
|
YYDEBUGSTR, yydepth, YYFINAL, yychar, yys);
|
|
}
|
|
#endif
|
|
}
|
|
if (yychar == YYEOF) goto yyaccept;
|
|
goto yyloop;
|
|
}
|
|
if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 &&
|
|
yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate)
|
|
yystate = yytable[yyn];
|
|
else
|
|
yystate = yydgoto[yym];
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
{
|
|
fprintf(stderr, "%s[%d]: after reduction, ", YYDEBUGSTR, yydepth);
|
|
#ifdef YYSTYPE_TOSTRING
|
|
%%ifdef YYBTYACC
|
|
if (!yytrial)
|
|
%%endif
|
|
fprintf(stderr, "result is <%s>, ", YYSTYPE_TOSTRING(yystos[yystate], yyval));
|
|
#endif
|
|
fprintf(stderr, "shifting from state %d to state %d\n", *yystack.s_mark, yystate);
|
|
}
|
|
#endif
|
|
if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;
|
|
*++yystack.s_mark = (YYINT) yystate;
|
|
*++yystack.l_mark = yyval;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
*++yystack.p_mark = yyloc;
|
|
#endif
|
|
goto yyloop;
|
|
%%ifdef YYBTYACC
|
|
|
|
/* Reduction declares that this path is valid. Set yypath and do a full parse */
|
|
yyvalid:
|
|
if (yypath) YYABORT;
|
|
while (yyps->save)
|
|
{
|
|
YYParseState *save = yyps->save;
|
|
yyps->save = save->save;
|
|
save->save = yypath;
|
|
yypath = save;
|
|
}
|
|
#if YYDEBUG
|
|
if (yydebug)
|
|
fprintf(stderr, "%s[%d]: state %d, CONFLICT trial successful, backtracking to state %d, %d tokens\n",
|
|
YYDEBUGSTR, yydepth, yystate, yypath->state, (int)(yylvp - yylvals - yypath->lexeme));
|
|
#endif
|
|
if (yyerrctx)
|
|
{
|
|
yyFreeState(yyerrctx);
|
|
yyerrctx = NULL;
|
|
}
|
|
yylvp = yylvals + yypath->lexeme;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yylpp = yylpsns + yypath->lexeme;
|
|
#endif
|
|
yylexp = yylexemes + yypath->lexeme;
|
|
yychar = YYEMPTY;
|
|
yystack.s_mark = yystack.s_base + (yypath->yystack.s_mark - yypath->yystack.s_base);
|
|
memcpy (yystack.s_base, yypath->yystack.s_base, (size_t) (yystack.s_mark - yystack.s_base + 1) * sizeof(YYINT));
|
|
yystack.l_mark = yystack.l_base + (yypath->yystack.l_mark - yypath->yystack.l_base);
|
|
memcpy (yystack.l_base, yypath->yystack.l_base, (size_t) (yystack.l_mark - yystack.l_base + 1) * sizeof(YYSTYPE));
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
yystack.p_mark = yystack.p_base + (yypath->yystack.p_mark - yypath->yystack.p_base);
|
|
memcpy (yystack.p_base, yypath->yystack.p_base, (size_t) (yystack.p_mark - yystack.p_base + 1) * sizeof(YYLTYPE));
|
|
#endif
|
|
yystate = yypath->state;
|
|
goto yyloop;
|
|
%%endif YYBTYACC
|
|
|
|
yyoverflow:
|
|
YYERROR_CALL("yacc stack overflow");
|
|
%%ifdef YYBTYACC
|
|
goto yyabort_nomem;
|
|
yyenomem:
|
|
YYERROR_CALL("memory exhausted");
|
|
yyabort_nomem:
|
|
%%endif
|
|
yyresult = 2;
|
|
goto yyreturn;
|
|
|
|
yyabort:
|
|
yyresult = 1;
|
|
goto yyreturn;
|
|
|
|
yyaccept:
|
|
%%ifdef YYBTYACC
|
|
if (yyps->save) goto yyvalid;
|
|
%%endif
|
|
yyresult = 0;
|
|
|
|
yyreturn:
|
|
#if defined(YYDESTRUCT_CALL)
|
|
if (yychar != YYEOF && yychar != YYEMPTY)
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
YYDESTRUCT_CALL("cleanup: discarding token", yychar, &yylval, &yylloc);
|
|
#else
|
|
YYDESTRUCT_CALL("cleanup: discarding token", yychar, &yylval);
|
|
#endif /* defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED) */
|
|
|
|
{
|
|
YYSTYPE *pv;
|
|
#if defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED)
|
|
YYLTYPE *pp;
|
|
|
|
for (pv = yystack.l_base, pp = yystack.p_base; pv <= yystack.l_mark; ++pv, ++pp)
|
|
YYDESTRUCT_CALL("cleanup: discarding state",
|
|
yystos[*(yystack.s_base + (pv - yystack.l_base))], pv, pp);
|
|
#else
|
|
for (pv = yystack.l_base; pv <= yystack.l_mark; ++pv)
|
|
YYDESTRUCT_CALL("cleanup: discarding state",
|
|
yystos[*(yystack.s_base + (pv - yystack.l_base))], pv);
|
|
#endif /* defined(YYLTYPE) || defined(YYLTYPE_IS_DECLARED) */
|
|
}
|
|
#endif /* defined(YYDESTRUCT_CALL) */
|
|
|
|
%%ifdef YYBTYACC
|
|
if (yyerrctx)
|
|
{
|
|
yyFreeState(yyerrctx);
|
|
yyerrctx = NULL;
|
|
}
|
|
while (yyps)
|
|
{
|
|
YYParseState *save = yyps;
|
|
yyps = save->save;
|
|
save->save = NULL;
|
|
yyFreeState(save);
|
|
}
|
|
while (yypath)
|
|
{
|
|
YYParseState *save = yypath;
|
|
yypath = save->save;
|
|
save->save = NULL;
|
|
yyFreeState(save);
|
|
}
|
|
%%endif YYBTYACC
|
|
yyfreestack(&yystack);
|
|
return (yyresult);
|
|
}
|