/* A Bison parser, made from mbasic.y by GNU Bison version 1.28 */ #define YYBISON 1 /* Identify Bison output. */ #define UNREC 257 #define STRLIT 258 #define SVAR 259 #define NUMLIT 260 #define NVAR 261 #define BOOLIT 262 #define BVAR 263 #define EOL 264 #define CLS 265 #define INPUT 266 #define PRINT 267 #define DIM 268 #define AS 269 #define NUMBER 270 #define STRING 271 #define BOOLEAN 272 #define IF 273 #define THEN 274 #define ELSE 275 #define AND 276 #define OR 277 #define NOT 278 #define EQ 279 #define NE 280 #define GT 281 #define GE 282 #define LT 283 #define LE 284 #line 2 "mbasic.y" #include "mbasic.h" #include "mbasic.c" #line 9 "mbasic.y" typedef union { double number; char *string; int boolean; } YYSTYPE; #include #ifndef __cplusplus #ifndef __STDC__ #define const #endif #endif #define YYFINAL 119 #define YYFLAG -32768 #define YYNTBASE 40 #define YYTRANSLATE(x) ((unsigned)(x) <= 284 ? yytranslate[x] : 46) static const char yytranslate[] = { 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 38, 39, 34, 33, 2, 32, 2, 35, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 37, 2, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 }; #if YYDEBUG != 0 static const short yyprhs[] = { 0, 0, 1, 4, 6, 9, 12, 14, 17, 20, 22, 25, 28, 33, 39, 47, 50, 55, 61, 69, 74, 82, 86, 90, 97, 102, 110, 114, 118, 125, 130, 138, 142, 146, 153, 156, 158, 160, 165, 168, 172, 176, 180, 184, 188, 190, 192, 197, 201, 205, 207, 211, 215, 219, 223, 227, 231 }; static const short yyrhs[] = { -1, 40, 41, 0, 10, 0, 42, 10, 0, 1, 10, 0, 11, 0, 13, 43, 0, 13, 44, 0, 13, 0, 12, 3, 0, 12, 7, 0, 12, 4, 37, 7, 0, 12, 7, 38, 43, 39, 0, 12, 4, 37, 7, 38, 43, 39, 0, 12, 5, 0, 12, 4, 37, 5, 0, 12, 5, 38, 43, 39, 0, 12, 4, 37, 5, 38, 43, 39, 0, 14, 3, 15, 16, 0, 14, 3, 38, 43, 39, 15, 16, 0, 3, 31, 43, 0, 7, 31, 43, 0, 7, 38, 43, 39, 31, 43, 0, 14, 3, 15, 17, 0, 14, 3, 38, 43, 39, 15, 17, 0, 3, 31, 44, 0, 5, 31, 44, 0, 5, 38, 43, 39, 31, 44, 0, 14, 3, 15, 18, 0, 14, 3, 38, 43, 39, 15, 18, 0, 9, 31, 3, 0, 9, 31, 45, 0, 9, 38, 43, 39, 31, 45, 0, 19, 45, 0, 6, 0, 7, 0, 7, 38, 43, 39, 0, 32, 43, 0, 43, 33, 43, 0, 43, 32, 43, 0, 43, 34, 43, 0, 43, 35, 43, 0, 38, 43, 39, 0, 4, 0, 5, 0, 5, 38, 43, 39, 0, 44, 33, 44, 0, 44, 33, 43, 0, 8, 0, 43, 25, 43, 0, 43, 26, 43, 0, 43, 27, 43, 0, 43, 28, 43, 0, 43, 29, 43, 0, 43, 30, 43, 0, 45, 22, 45, 0 }; #endif #if YYDEBUG != 0 static const short yyrline[] = { 0, 50, 51, 54, 55, 56, 59, 60, 61, 62, 64, 66, 67, 68, 69, 71, 72, 73, 74, 76, 77, 79, 80, 81, 83, 84, 86, 87, 88, 90, 91, 93, 94, 95, 97, 100, 101, 102, 103, 104, 105, 106, 107, 108, 111, 112, 113, 114, 115, 118, 119, 120, 121, 122, 123, 124, 125 }; #endif #if YYDEBUG != 0 || defined (YYERROR_VERBOSE) static const char * const yytname[] = { "$","error","$undefined.","UNREC", "STRLIT","SVAR","NUMLIT","NVAR","BOOLIT","BVAR","EOL","CLS","INPUT","PRINT", "DIM","AS","NUMBER","STRING","BOOLEAN","IF","THEN","ELSE","AND","OR","NOT","EQ", "NE","GT","GE","LT","LE","'='","'-'","'+'","'*'","'/'","'^'","';'","'('","')'", "input","line","stmt","nexpr","sexpr","bexpr", NULL }; #endif static const short yyr1[] = { 0, 40, 40, 41, 41, 41, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 43, 43, 43, 43, 43, 43, 43, 43, 43, 44, 44, 44, 44, 44, 45, 45, 45, 45, 45, 45, 45, 45 }; static const short yyr2[] = { 0, 0, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 4, 5, 7, 2, 4, 5, 7, 4, 7, 3, 3, 6, 4, 7, 3, 3, 6, 4, 7, 3, 3, 6, 2, 1, 1, 4, 2, 3, 3, 3, 3, 3, 1, 1, 4, 3, 3, 1, 3, 3, 3, 3, 3, 3, 3 }; static const short yydefact[] = { 1, 0, 0, 0, 0, 0, 0, 3, 6, 0, 9, 0, 0, 2, 0, 5, 0, 0, 0, 0, 0, 0, 0, 10, 0, 15, 11, 44, 45, 35, 36, 0, 0, 7, 8, 0, 49, 0, 34, 4, 21, 26, 27, 0, 22, 0, 31, 32, 0, 0, 0, 0, 0, 0, 38, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 12, 0, 0, 0, 0, 43, 40, 39, 41, 42, 48, 47, 19, 24, 29, 0, 50, 51, 52, 53, 54, 55, 56, 0, 0, 0, 0, 0, 17, 13, 46, 37, 0, 28, 23, 33, 0, 0, 0, 18, 14, 20, 25, 30, 0, 0 }; static const short yydefgoto[] = { 1, 13, 14, 37, 34, 38 }; static const short yypact[] = {-32768, 95, 13, -6, -20, -14, -12,-32768,-32768, 72, 32, 25, 54,-32768, 34,-32768, 32, 135, 61, 61, 61, 27, 61,-32768, 26, 28, 31,-32768, 42,-32768, 49, 61, 61, 78, 56, -11,-32768, 90, 75,-32768, 78, 56, 56, -19, 78, 39,-32768, 75, 94, 0, 61, 61, 61, 61, 112, 102, 61, 61, 61, 61, 32, 67, 61, 61, 61, 61, 61, 61, 61, 54, 63, 70, 107, 65, 83, 110, 118, 126, 134,-32768, 112, 112,-32768,-32768, -3,-32768,-32768,-32768,-32768, 142, 78, 78, 78, 78, 78, 78, 75, 135, 61, 54, 61, 61,-32768,-32768,-32768,-32768, 133, 56, 78, 75, 150, 158, 114,-32768,-32768,-32768,-32768,-32768, 154,-32768 }; static const short yypgoto[] = {-32768, -32768,-32768, -10, -15, -18 }; #define YYLAST 197 static const short yytable[] = { 33, 41, 42, 47, 61, 73, 40, 74, 43, 44, 45, 17, 48, 56, 57, 58, 59, 19, 18, 21, 70, 54, 55, 15, 20, 16, 22, 62, 35, 56, 46, 58, 59, 29, 30, 36, 27, 28, 29, 30, 75, 76, 77, 78, 39, 85, 80, 81, 82, 83, 84, 96, 89, 90, 91, 92, 93, 94, 95, 31, 29, 30, 36, 49, 31, 32, 50, 29, 30, 51, 32, 56, 57, 58, 59, 23, 24, 25, 71, 26, 52, 109, 107, 86, 87, 88, 31, 53, 108, 60, 110, 111, 32, 31, 97, 118, 2, 69, 3, 32, 4, 98, 5, 100, 6, 7, 8, 9, 10, 11, 56, 57, 58, 59, 12, 63, 64, 65, 66, 67, 68, 101, 56, 57, 58, 59, 56, 57, 58, 59, 115, 116, 117, 72, 56, 57, 58, 59, 99, 27, 28, 79, 56, 57, 58, 59, 58, 59, 112, 102, 56, 57, 58, 59, 119, 0, 0, 103, 56, 57, 58, 59, 0, 0, 0, 104, 56, 57, 58, 59, 0, 0, 0, 105, 56, 57, 58, 59, 0, 0, 0, 106, 56, 57, 58, 59, 0, 0, 0, 113, 56, 57, 58, 59, 0, 0, 0, 114 }; static const short yycheck[] = { 10, 16, 17, 21, 15, 5, 16, 7, 18, 19, 20, 31, 22, 32, 33, 34, 35, 31, 38, 31, 39, 31, 32, 10, 38, 31, 38, 38, 3, 32, 3, 34, 35, 6, 7, 8, 4, 5, 6, 7, 50, 51, 52, 53, 10, 60, 56, 57, 58, 59, 60, 69, 62, 63, 64, 65, 66, 67, 68, 32, 6, 7, 8, 37, 32, 38, 38, 6, 7, 38, 38, 32, 33, 34, 35, 3, 4, 5, 39, 7, 38, 99, 97, 16, 17, 18, 32, 38, 98, 33, 100, 101, 38, 32, 31, 0, 1, 22, 3, 38, 5, 31, 7, 38, 9, 10, 11, 12, 13, 14, 32, 33, 34, 35, 19, 25, 26, 27, 28, 29, 30, 38, 32, 33, 34, 35, 32, 33, 34, 35, 16, 17, 18, 39, 32, 33, 34, 35, 31, 4, 5, 39, 32, 33, 34, 35, 34, 35, 15, 39, 32, 33, 34, 35, 0, -1, -1, 39, 32, 33, 34, 35, -1, -1, -1, 39, 32, 33, 34, 35, -1, -1, -1, 39, 32, 33, 34, 35, -1, -1, -1, 39, 32, 33, 34, 35, -1, -1, -1, 39, 32, 33, 34, 35, -1, -1, -1, 39 }; /* -*-C-*- Note some compilers choke on comments on `#line' lines. */ #line 3 "/usr/lib/bison.simple" /* This file comes from bison-1.28. */ /* Skeleton output parser for bison, Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* As a special exception, when this file is copied by Bison into a Bison output file, you may use that output file without restriction. This special exception was added by the Free Software Foundation in version 1.24 of Bison. */ /* This is the parser code that is written into each bison parser when the %semantic_parser declaration is not specified in the grammar. It was written by Richard Stallman by simplifying the hairy parser used when %semantic_parser is specified. */ #ifndef YYSTACK_USE_ALLOCA #ifdef alloca #define YYSTACK_USE_ALLOCA #else /* alloca not defined */ #ifdef __GNUC__ #define YYSTACK_USE_ALLOCA #define alloca __builtin_alloca #else /* not GNU C. */ #if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) || (defined (__sun) && defined (__i386)) #define YYSTACK_USE_ALLOCA #include #else /* not sparc */ /* We think this test detects Watcom and Microsoft C. */ /* This used to test MSDOS, but that is a bad idea since that symbol is in the user namespace. */ #if (defined (_MSDOS) || defined (_MSDOS_)) && !defined (__TURBOC__) #if 0 /* No need for malloc.h, which pollutes the namespace; instead, just don't use alloca. */ #include #endif #else /* not MSDOS, or __TURBOC__ */ #if defined(_AIX) /* I don't know what this was needed for, but it pollutes the namespace. So I turned it off. rms, 2 May 1997. */ /* #include */ #pragma alloca #define YYSTACK_USE_ALLOCA #else /* not MSDOS, or __TURBOC__, or _AIX */ #if 0 #ifdef __hpux /* address@hidden says this works for HPUX 9.05 and up, and on HPUX 10. Eventually we can turn this on. */ #define YYSTACK_USE_ALLOCA #define alloca __builtin_alloca #endif /* __hpux */ #endif #endif /* not _AIX */ #endif /* not MSDOS, or __TURBOC__ */ #endif /* not sparc */ #endif /* not GNU C */ #endif /* alloca not defined */ #endif /* YYSTACK_USE_ALLOCA not defined */ #ifdef YYSTACK_USE_ALLOCA #define YYSTACK_ALLOC alloca #else #define YYSTACK_ALLOC malloc #endif /* Note: there must be only one dollar sign in this file. It is replaced by the list of actions, each action as one case of the switch. */ #define yyerrok (yyerrstatus = 0) #define yyclearin (yychar = YYEMPTY) #define YYEMPTY -2 #define YYEOF 0 #define YYACCEPT goto yyacceptlab #define YYABORT goto yyabortlab #define YYERROR goto yyerrlab1 /* Like YYERROR except do call yyerror. This remains here temporarily to ease the transition to the new meaning of YYERROR, for GCC. Once GCC version 2 has supplanted version 1, this can go. */ #define YYFAIL goto yyerrlab #define YYRECOVERING() (!!yyerrstatus) #define YYBACKUP(token, value) \ do \ if (yychar == YYEMPTY && yylen == 1) \ { yychar = (token), yylval = (value); \ yychar1 = YYTRANSLATE (yychar); \ YYPOPSTACK; \ goto yybackup; \ } \ else \ { yyerror ("syntax error: cannot back up"); YYERROR; } \ while (0) #define YYTERROR 1 #define YYERRCODE 256 #ifndef YYPURE #define YYLEX yylex() #endif #ifdef YYPURE #ifdef YYLSP_NEEDED #ifdef YYLEX_PARAM #define YYLEX yylex(&yylval, &yylloc, YYLEX_PARAM) #else #define YYLEX yylex(&yylval, &yylloc) #endif #else /* not YYLSP_NEEDED */ #ifdef YYLEX_PARAM #define YYLEX yylex(&yylval, YYLEX_PARAM) #else #define YYLEX yylex(&yylval) #endif #endif /* not YYLSP_NEEDED */ #endif /* If nonreentrant, generate the variables here */ #ifndef YYPURE int yychar; /* the lookahead symbol */ YYSTYPE yylval; /* the semantic value of the */ /* lookahead symbol */ #ifdef YYLSP_NEEDED YYLTYPE yylloc; /* location data for the lookahead */ /* symbol */ #endif int yynerrs; /* number of parse errors so far */ #endif /* not YYPURE */ #if YYDEBUG != 0 int yydebug; /* nonzero means print parse trace */ /* Since this is uninitialized, it does not stop multiple parsers from coexisting. */ #endif /* YYINITDEPTH indicates the initial size of the parser's stacks */ #ifndef YYINITDEPTH #define YYINITDEPTH 200 #endif /* YYMAXDEPTH is the maximum size the stacks can grow to (effective only if the built-in stack extension method is used). */ #if YYMAXDEPTH == 0 #undef YYMAXDEPTH #endif #ifndef YYMAXDEPTH #define YYMAXDEPTH 10000 #endif /* Define __yy_memcpy. Note that the size argument should be passed with type unsigned int, because that is what the non-GCC definitions require. With GCC, __builtin_memcpy takes an arg of type size_t, but it can handle unsigned int. */ #if __GNUC__ > 1 /* GNU C and GNU C++ define this. */ #define __yy_memcpy(TO,FROM,COUNT) __builtin_memcpy(TO,FROM,COUNT) #else /* not GNU C or C++ */ #ifndef __cplusplus /* This is the most reliable way to avoid incompatibilities in available built-in functions on various systems. */ static void __yy_memcpy (to, from, count) char *to; char *from; unsigned int count; { register char *f = from; register char *t = to; register int i = count; while (i-- > 0) *t++ = *f++; } #else /* __cplusplus */ /* This is the most reliable way to avoid incompatibilities in available built-in functions on various systems. */ static void __yy_memcpy (char *to, char *from, unsigned int count) { register char *t = to; register char *f = from; register int i = count; while (i-- > 0) *t++ = *f++; } #endif #endif #line 217 "/usr/lib/bison.simple" /* The user can define YYPARSE_PARAM as the name of an argument to be passed into yyparse. The argument should have type void *. It should actually point to an object. Grammar actions can access the variable by casting it to the proper pointer type. */ #ifdef YYPARSE_PARAM #ifdef __cplusplus #define YYPARSE_PARAM_ARG void *YYPARSE_PARAM #define YYPARSE_PARAM_DECL #else /* not __cplusplus */ #define YYPARSE_PARAM_ARG YYPARSE_PARAM #define YYPARSE_PARAM_DECL void *YYPARSE_PARAM; #endif /* not __cplusplus */ #else /* not YYPARSE_PARAM */ #define YYPARSE_PARAM_ARG #define YYPARSE_PARAM_DECL #endif /* not YYPARSE_PARAM */ /* Prevent warning if -Wstrict-prototypes. */ #ifdef __GNUC__ #ifdef YYPARSE_PARAM int yyparse (void *); #else int yyparse (void); #endif #endif int yyparse(YYPARSE_PARAM_ARG) YYPARSE_PARAM_DECL { register int yystate; register int yyn; register short *yyssp; register YYSTYPE *yyvsp; int yyerrstatus; /* number of tokens to shift before error messages enabled */ int yychar1 = 0; /* lookahead token as an internal (translated) token number */ short yyssa[YYINITDEPTH]; /* the state stack */ YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */ short *yyss = yyssa; /* refer to the stacks thru separate pointers */ YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */ #ifdef YYLSP_NEEDED YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */ YYLTYPE *yyls = yylsa; YYLTYPE *yylsp; #define YYPOPSTACK (yyvsp--, yyssp--, yylsp--) #else #define YYPOPSTACK (yyvsp--, yyssp--) #endif int yystacksize = YYINITDEPTH; int yyfree_stacks = 0; #ifdef YYPURE int yychar; YYSTYPE yylval; int yynerrs; #ifdef YYLSP_NEEDED YYLTYPE yylloc; #endif #endif YYSTYPE yyval; /* the variable used to return */ /* semantic values from the action */ /* routines */ int yylen; #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Starting parse\n"); #endif yystate = 0; yyerrstatus = 0; yynerrs = 0; yychar = YYEMPTY; /* Cause a token to be read. */ /* Initialize stack pointers. Waste one element of value and location stack so that they stay on the same level as the state stack. The wasted elements are never initialized. */ yyssp = yyss - 1; yyvsp = yyvs; #ifdef YYLSP_NEEDED yylsp = yyls; #endif /* Push a new state, which is found in yystate . */ /* In all cases, when you get here, the value and location stacks have just been pushed. so pushing a state here evens the stacks. */ yynewstate: *++yyssp = yystate; if (yyssp >= yyss + yystacksize - 1) { /* Give user a chance to reallocate the stack */ /* Use copies of these so that the &'s don't force the real ones into memory. */ YYSTYPE *yyvs1 = yyvs; short *yyss1 = yyss; #ifdef YYLSP_NEEDED YYLTYPE *yyls1 = yyls; #endif /* Get the current used size of the three stacks, in elements. */ int size = yyssp - yyss + 1; #ifdef yyoverflow /* Each stack pointer address is followed by the size of the data in use in that stack, in bytes. */ #ifdef YYLSP_NEEDED /* This used to be a conditional around just the two extra args, but that might be undefined if yyoverflow is a macro. */ yyoverflow("parser stack overflow", &yyss1, size * sizeof (*yyssp), &yyvs1, size * sizeof (*yyvsp), &yyls1, size * sizeof (*yylsp), &yystacksize); #else yyoverflow("parser stack overflow", &yyss1, size * sizeof (*yyssp), &yyvs1, size * sizeof (*yyvsp), &yystacksize); #endif yyss = yyss1; yyvs = yyvs1; #ifdef YYLSP_NEEDED yyls = yyls1; #endif #else /* no yyoverflow */ /* Extend the stack our own way. */ if (yystacksize >= YYMAXDEPTH) { yyerror("parser stack overflow"); if (yyfree_stacks) { free (yyss); free (yyvs); #ifdef YYLSP_NEEDED free (yyls); #endif } return 2; } yystacksize *= 2; if (yystacksize > YYMAXDEPTH) yystacksize = YYMAXDEPTH; #ifndef YYSTACK_USE_ALLOCA yyfree_stacks = 1; #endif yyss = (short *) YYSTACK_ALLOC (yystacksize * sizeof (*yyssp)); __yy_memcpy ((char *)yyss, (char *)yyss1, size * (unsigned int) sizeof (*yyssp)); yyvs = (YYSTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yyvsp)); __yy_memcpy ((char *)yyvs, (char *)yyvs1, size * (unsigned int) sizeof (*yyvsp)); #ifdef YYLSP_NEEDED yyls = (YYLTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yylsp)); __yy_memcpy ((char *)yyls, (char *)yyls1, size * (unsigned int) sizeof (*yylsp)); #endif #endif /* no yyoverflow */ yyssp = yyss + size - 1; yyvsp = yyvs + size - 1; #ifdef YYLSP_NEEDED yylsp = yyls + size - 1; #endif #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Stack size increased to %d\n", yystacksize); #endif if (yyssp >= yyss + yystacksize - 1) YYABORT; } #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Entering state %d\n", yystate); #endif goto yybackup; yybackup: /* Do appropriate processing given the current state. */ /* Read a lookahead token if we need one and don't already have one. */ /* yyresume: */ /* First try to decide what to do without reference to lookahead token. */ yyn = yypact[yystate]; if (yyn == YYFLAG) goto yydefault; /* Not known => get a lookahead token if don't already have one. */ /* yychar is either YYEMPTY or YYEOF or a valid token in external form. */ if (yychar == YYEMPTY) { #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Reading a token: "); #endif yychar = YYLEX; } /* Convert token to internal form (in yychar1) for indexing tables with */ if (yychar <= 0) /* This means end of input. */ { yychar1 = 0; yychar = YYEOF; /* Don't call YYLEX any more */ #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Now at end of input.\n"); #endif } else { yychar1 = YYTRANSLATE(yychar); #if YYDEBUG != 0 if (yydebug) { fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]); /* Give the individual parser a way to print the precise meaning of a token, for further debugging info. */ #ifdef YYPRINT YYPRINT (stderr, yychar, yylval); #endif fprintf (stderr, ")\n"); } #endif } yyn += yychar1; if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1) goto yydefault; yyn = yytable[yyn]; /* yyn is what to do for this token type in this state. Negative => reduce, -yyn is rule number. Positive => shift, yyn is new state. New state is final state => don't bother to shift, just return success. 0, or most negative number => error. */ if (yyn < 0) { if (yyn == YYFLAG) goto yyerrlab; yyn = -yyn; goto yyreduce; } else if (yyn == 0) goto yyerrlab; if (yyn == YYFINAL) YYACCEPT; /* Shift the lookahead token. */ #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]); #endif /* Discard the token being shifted unless it is eof. */ if (yychar != YYEOF) yychar = YYEMPTY; *++yyvsp = yylval; #ifdef YYLSP_NEEDED *++yylsp = yylloc; #endif /* count tokens shifted since error; after three, turn off error status. */ if (yyerrstatus) yyerrstatus--; yystate = yyn; goto yynewstate; /* Do the default action for the current state. */ yydefault: yyn = yydefact[yystate]; if (yyn == 0) goto yyerrlab; /* Do a reduction. yyn is the number of a rule to reduce with. */ yyreduce: yylen = yyr2[yyn]; if (yylen > 0) yyval = yyvsp[1-yylen]; /* implement default value of the action */ #if YYDEBUG != 0 if (yydebug) { int i; fprintf (stderr, "Reducing via rule %d (line %d), ", yyn, yyrline[yyn]); /* Print the symbols being reduced, and their result. */ for (i = yyprhs[yyn]; yyrhs[i] > 0; i++) fprintf (stderr, "%s ", yytname[yyrhs[i]]); fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]); } #endif switch (yyn) { case 5: #line 56 "mbasic.y" { yyerrok; ; break;} case 6: #line 59 "mbasic.y" { system("clear"); ; break;} case 7: #line 60 "mbasic.y" { printf("%f\n",yyvsp[0].number); ; break;} case 8: #line 61 "mbasic.y" { printf("%s\n",yyvsp[0].string); ; break;} case 9: #line 62 "mbasic.y" { printf("\n"); ; break;} case 10: #line 64 "mbasic.y" { yyerror("Variable not defined"); ; break;} case 11: #line 66 "mbasic.y" { InputNumber(stdin,yyvsp[0].boolean,0); ; break;} case 12: #line 67 "mbasic.y" { printf("%s",yyvsp[-2].string); InputNumber(stdin,yyvsp[0].boolean,0); ; break;} case 13: #line 68 "mbasic.y" { InputNumber(stdin,yyvsp[-3].boolean,yyvsp[-1].number); ; break;} case 14: #line 69 "mbasic.y" { printf("%s",yyvsp[-5].string); InputNumber(stdin,yyvsp[-3].boolean,yyvsp[-1].number); ; break;} case 15: #line 71 "mbasic.y" { InputString(stdin,yyvsp[0].boolean,0); ; break;} case 16: #line 72 "mbasic.y" { printf("%s",yyvsp[-2].string); InputString(stdin,yyvsp[0].boolean,0); ; break;} case 17: #line 73 "mbasic.y" { InputString(stdin,yyvsp[-3].boolean,yyvsp[-1].number); ; break;} case 18: #line 74 "mbasic.y" { printf("%s",yyvsp[-5].string); InputString(stdin,yyvsp[-3].boolean,yyvsp[-1].number); ; break;} case 19: #line 76 "mbasic.y" { Dim(yyvsp[-2].string,0,TP_NUMBER); ; break;} case 20: #line 77 "mbasic.y" { Dim(yyvsp[-5].string,yyvsp[-3].number,TP_NUMBER); ; break;} case 21: #line 79 "mbasic.y" { yyerror("Variable not defined"); ; break;} case 22: #line 80 "mbasic.y" { PutNumber(yyvsp[-2].boolean,0,yyvsp[0].number); ; break;} case 23: #line 81 "mbasic.y" { PutNumber(yyvsp[-5].boolean,yyvsp[-3].number,yyvsp[0].number); ; break;} case 24: #line 83 "mbasic.y" { Dim(yyvsp[-2].string,0,TP_STRING); ; break;} case 25: #line 84 "mbasic.y" { Dim(yyvsp[-5].string,yyvsp[-3].number,TP_STRING); ; break;} case 26: #line 86 "mbasic.y" { yyerror("Variable not defined"); ; break;} case 27: #line 87 "mbasic.y" { PutString(yyvsp[-2].boolean,0,yyvsp[0].string); ; break;} case 28: #line 88 "mbasic.y" { PutString(yyvsp[-5].boolean,yyvsp[-3].number,yyvsp[0].string); ; break;} case 29: #line 90 "mbasic.y" { Dim(yyvsp[-2].string,0,TP_BOOLEAN); ; break;} case 30: #line 91 "mbasic.y" { Dim(yyvsp[-5].string,yyvsp[-3].number,TP_BOOLEAN); ; break;} case 31: #line 93 "mbasic.y" { yyerror("Variable not defined"); ; break;} case 32: #line 94 "mbasic.y" { PutBoolean(yyvsp[-2].boolean,0,yyvsp[0].boolean); ; break;} case 33: #line 95 "mbasic.y" { PutBoolean(yyvsp[-5].boolean,yyvsp[-3].number,yyvsp[0].boolean); ; break;} case 34: #line 97 "mbasic.y" { printf("Answer: %i\n",yyvsp[0].boolean); ; break;} case 35: #line 100 "mbasic.y" { yyval.number = yyvsp[0].number; ; break;} case 36: #line 101 "mbasic.y" { yyval.number = GetNumber(yyvsp[0].boolean,0); ; break;} case 37: #line 102 "mbasic.y" { yyval.number = GetNumber(yyvsp[-3].boolean,yyvsp[-1].number); ; break;} case 38: #line 103 "mbasic.y" { yyval.number = 0-yyvsp[0].number; ; break;} case 39: #line 104 "mbasic.y" { yyval.number = yyvsp[-2].number + yyvsp[0].number; ; break;} case 40: #line 105 "mbasic.y" { yyval.number = yyvsp[-2].number - yyvsp[0].number; ; break;} case 41: #line 106 "mbasic.y" { yyval.number = yyvsp[-2].number * yyvsp[0].number; ; break;} case 42: #line 107 "mbasic.y" { yyval.number = yyvsp[-2].number / yyvsp[0].number; ; break;} case 43: #line 108 "mbasic.y" { yyval.number = yyvsp[-1].number; ; break;} case 44: #line 111 "mbasic.y" { yyval.string = yyvsp[0].string; ; break;} case 45: #line 112 "mbasic.y" { yyval.string = GetString(yyvsp[0].boolean,0); ; break;} case 46: #line 113 "mbasic.y" { yyval.string = GetString(yyvsp[-3].boolean,yyvsp[-1].number); ; break;} case 47: #line 114 "mbasic.y" { yyval.string = ConcatString(yyvsp[-2].string,yyvsp[0].string); ; break;} case 48: #line 115 "mbasic.y" { yyval.string = ConcatString(yyvsp[-2].string,Str(yyvsp[0].number)); ; break;} case 49: #line 118 "mbasic.y" { yyval.boolean = yyvsp[0].boolean; ; break;} case 50: #line 119 "mbasic.y" { if(yyvsp[-2].number == yyvsp[0].number) { yyval.boolean = 1; } else { yyval.boolean = 0; } ; break;} case 51: #line 120 "mbasic.y" { if(yyvsp[-2].number != yyvsp[0].number) { yyval.boolean = 1; } else { yyval.boolean = 0; } ; break;} case 52: #line 121 "mbasic.y" { if(yyvsp[-2].number > yyvsp[0].number) { yyval.boolean = 1; } else { yyval.boolean = 0; } ; break;} case 53: #line 122 "mbasic.y" { if(yyvsp[-2].number >= yyvsp[0].number) { yyval.boolean = 1; } else { yyval.boolean = 0; } ; break;} case 54: #line 123 "mbasic.y" { if(yyvsp[-2].number < yyvsp[0].number) { yyval.boolean = 1; } else { yyval.boolean = 0; } ; break;} case 55: #line 124 "mbasic.y" { if(yyvsp[-2].number <= yyvsp[0].number) { yyval.boolean = 1; } else { yyval.boolean = 0; } ; break;} case 56: #line 125 "mbasic.y" { if(yyvsp[-2].boolean && yyvsp[0].boolean) { yyval.boolean = 1; } else { yyval.boolean = 0; } ; break;} } /* the action file gets copied in in place of this dollarsign */ #line 543 "/usr/lib/bison.simple" yyvsp -= yylen; yyssp -= yylen; #ifdef YYLSP_NEEDED yylsp -= yylen; #endif #if YYDEBUG != 0 if (yydebug) { short *ssp1 = yyss - 1; fprintf (stderr, "state stack now"); while (ssp1 != yyssp) fprintf (stderr, " %d", *++ssp1); fprintf (stderr, "\n"); } #endif *++yyvsp = yyval; #ifdef YYLSP_NEEDED yylsp++; if (yylen == 0) { yylsp->first_line = yylloc.first_line; yylsp->first_column = yylloc.first_column; yylsp->last_line = (yylsp-1)->last_line; yylsp->last_column = (yylsp-1)->last_column; yylsp->text = 0; } else { yylsp->last_line = (yylsp+yylen-1)->last_line; yylsp->last_column = (yylsp+yylen-1)->last_column; } #endif /* Now "shift" the result of the reduction. Determine what state that goes to, based on the state we popped back to and the rule number reduced by. */ yyn = yyr1[yyn]; yystate = yypgoto[yyn - YYNTBASE] + *yyssp; if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp) yystate = yytable[yystate]; else yystate = yydefgoto[yyn - YYNTBASE]; goto yynewstate; yyerrlab: /* here on detecting error */ if (! yyerrstatus) /* If not already recovering from an error, report this error. */ { ++yynerrs; #ifdef YYERROR_VERBOSE yyn = yypact[yystate]; if (yyn > YYFLAG && yyn < YYLAST) { int size = 0; char *msg; int x, count; count = 0; /* Start X at -yyn if nec to avoid negative indexes in yycheck. */ for (x = (yyn < 0 ? -yyn : 0); x < (sizeof(yytname) / sizeof(char *)); x++) if (yycheck[x + yyn] == x) size += strlen(yytname[x]) + 15, count++; msg = (char *) malloc(size + 15); if (msg != 0) { strcpy(msg, "parse error"); if (count < 5) { count = 0; for (x = (yyn < 0 ? -yyn : 0); x < (sizeof(yytname) / sizeof(char *)); x++) if (yycheck[x + yyn] == x) { strcat(msg, count == 0 ? ", expecting `" : " or `"); strcat(msg, yytname[x]); strcat(msg, "'"); count++; } } yyerror(msg); free(msg); } else yyerror ("parse error; also virtual memory exceeded"); } else #endif /* YYERROR_VERBOSE */ yyerror("parse error"); } goto yyerrlab1; yyerrlab1: /* here on error raised explicitly by an action */ if (yyerrstatus == 3) { /* if just tried and failed to reuse lookahead token after an error, discard it. */ /* return failure if at end of input */ if (yychar == YYEOF) YYABORT; #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]); #endif yychar = YYEMPTY; } /* Else will try to reuse lookahead token after shifting the error token. */ yyerrstatus = 3; /* Each real token shifted decrements this */ goto yyerrhandle; yyerrdefault: /* current state does not do anything special for the error token. */ #if 0 /* This is wrong; only states that explicitly want error tokens should shift them. */ yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/ if (yyn) goto yydefault; #endif yyerrpop: /* pop the current state because it cannot handle the error token */ if (yyssp == yyss) YYABORT; yyvsp--; yystate = *--yyssp; #ifdef YYLSP_NEEDED yylsp--; #endif #if YYDEBUG != 0 if (yydebug) { short *ssp1 = yyss - 1; fprintf (stderr, "Error: state stack now"); while (ssp1 != yyssp) fprintf (stderr, " %d", *++ssp1); fprintf (stderr, "\n"); } #endif yyerrhandle: yyn = yypact[yystate]; if (yyn == YYFLAG) goto yyerrdefault; yyn += YYTERROR; if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR) goto yyerrdefault; yyn = yytable[yyn]; if (yyn < 0) { if (yyn == YYFLAG) goto yyerrpop; yyn = -yyn; goto yyreduce; } else if (yyn == 0) goto yyerrpop; if (yyn == YYFINAL) YYACCEPT; #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Shifting error token, "); #endif *++yyvsp = yylval; #ifdef YYLSP_NEEDED *++yylsp = yylloc; #endif yystate = yyn; goto yynewstate; yyacceptlab: /* YYACCEPT comes here. */ if (yyfree_stacks) { free (yyss); free (yyvs); #ifdef YYLSP_NEEDED free (yyls); #endif } return 0; yyabortlab: /* YYABORT comes here. */ if (yyfree_stacks) { free (yyss); free (yyvs); #ifdef YYLSP_NEEDED free (yyls); #endif } return 1; } #line 128 "mbasic.y" yyerror(char *s) { fprintf(stderr,"%s\n",s); }