diff options
Diffstat (limited to 'demos')
| -rw-r--r-- | demos/calc/calc.c | 1656 | ||||
| -rw-r--r-- | demos/calc/calc.h | 43 | ||||
| -rw-r--r-- | demos/calc/calclex.c | 1704 |
3 files changed, 0 insertions, 3403 deletions
diff --git a/demos/calc/calc.c b/demos/calc/calc.c deleted file mode 100644 index afc7660d2..000000000 --- a/demos/calc/calc.c +++ /dev/null @@ -1,1656 +0,0 @@ -/* A Bison parser, made from calc.y - by GNU bison 1.34. */ - -#define YYBISON 1 /* Identify Bison output. */ - -# define EOS 257 -# define BAD 258 -# define HELP 259 -# define HEX 260 -# define DECIMAL 261 -# define QUIT 262 -# define ABS 263 -# define BIN 264 -# define FIB 265 -# define GCD 266 -# define KRON 267 -# define LCM 268 -# define LUCNUM 269 -# define NEXTPRIME 270 -# define POWM 271 -# define ROOT 272 -# define SQRT 273 -# define NUMBER 274 -# define VARIABLE 275 -# define LOR 276 -# define LAND 277 -# define EQ 278 -# define NE 279 -# define LE 280 -# define GE 281 -# define LSHIFT 282 -# define RSHIFT 283 -# define UMINUS 284 - -#line 1 "calc.y" - -/* A simple integer desk calculator using yacc and gmp. - -Copyright 2000, 2001, 2002 Free Software Foundation, Inc. - -This file is part of the GNU MP Library. - -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 3 of the License, 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, see http://www.gnu.org/licenses/. */ - - -/* This is a simple program, meant only to show one way to use GMP for this - sort of thing. There's few features, and error checking is minimal. - Standard input is read, calc_help() below shows the inputs accepted. - - Expressions are evaluated as they're read. If user defined functions - were wanted it'd be necessary to build a parse tree like pexpr.c does, or - a list of operations for a stack based evaluator. That would also make - it possible to detect and optimize evaluations "mod m" like pexpr.c does. - - A stack is used for intermediate values in the expression evaluation, - separate from the yacc parser stack. This is simple, makes error - recovery easy, minimizes the junk around mpz calls in the rules, and - saves initializing or clearing "mpz_t"s during a calculation. A - disadvantage though is that variables must be copied to the stack to be - worked on. A more sophisticated calculator or language system might be - able to avoid that when executing a compiled or semi-compiled form. - - Avoiding repeated initializing and clearing of "mpz_t"s is important. In - this program the time spent parsing is obviously much greater than any - possible saving from this, but a proper calculator or language should - take some trouble over it. Don't be surprised if an init/clear takes 3 - or more times as long as a 10 limb addition, depending on the system (see - the mpz_init_realloc_clear example in tune/README). */ - - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include "gmp.h" -#define NO_CALC_H /* because it conflicts with normal calc.c stuff */ -#include "calc-common.h" - - -#define numberof(x) (sizeof (x) / sizeof ((x)[0])) - - -void -calc_help (void) -{ - printf ("Examples:\n"); - printf (" 2+3*4 expressions are evaluated\n"); - printf (" x=5^6 variables a to z can be set and used\n"); - printf ("Operators:\n"); - printf (" + - * arithmetic\n"); - printf (" / %% division and remainder (rounding towards negative infinity)\n"); - printf (" ^ exponentiation\n"); - printf (" ! factorial\n"); - printf (" << >> left and right shifts\n"); - printf (" <= >= > \\ comparisons, giving 1 if true, 0 if false\n"); - printf (" == != < /\n"); - printf (" && || logical and/or, giving 1 if true, 0 if false\n"); - printf ("Functions:\n"); - printf (" abs(n) absolute value\n"); - printf (" bin(n,m) binomial coefficient\n"); - printf (" fib(n) fibonacci number\n"); - printf (" gcd(a,b,..) greatest common divisor\n"); - printf (" kron(a,b) kronecker symbol\n"); - printf (" lcm(a,b,..) least common multiple\n"); - printf (" lucnum(n) lucas number\n"); - printf (" nextprime(n) next prime after n\n"); - printf (" powm(b,e,m) modulo powering, b^e%%m\n"); - printf (" root(n,r) r-th root\n"); - printf (" sqrt(n) square root\n"); - printf ("Other:\n"); - printf (" hex \\ set hex or decimal for input and output\n"); - printf (" decimal / (\"0x\" can be used for hex too)\n"); - printf (" quit exit program (EOF works too)\n"); - printf (" ; statements are separated with a ; or newline\n"); - printf (" \\ continue expressions with \\ before newline\n"); - printf (" # xxx comments are # though to newline\n"); - printf ("Hex numbers must be entered in upper case, to distinguish them from the\n"); - printf ("variables a to f (like in bc).\n"); -} - - -int ibase = 0; -int obase = 10; - - -/* The stack is a fixed size, which means there's a limit on the nesting - allowed in expressions. A more sophisticated program could let it grow - dynamically. */ - -mpz_t stack[100]; -mpz_ptr sp = stack[0]; - -#define CHECK_OVERFLOW() \ - if (sp >= stack[numberof(stack)]) \ - { \ - fprintf (stderr, \ - "Value stack overflow, too much nesting in expression\n"); \ - YYERROR; \ - } - -#define CHECK_EMPTY() \ - if (sp != stack[0]) \ - { \ - fprintf (stderr, "Oops, expected the value stack to be empty\n"); \ - sp = stack[0]; \ - } - - -mpz_t variable[26]; - -#define CHECK_VARIABLE(var) \ - if ((var) < 0 || (var) >= numberof (variable)) \ - { \ - fprintf (stderr, "Oops, bad variable somehow: %d\n", var); \ - YYERROR; \ - } - - -#define CHECK_UI(name,z) \ - if (! mpz_fits_ulong_p (z)) \ - { \ - fprintf (stderr, "%s too big\n", name); \ - YYERROR; \ - } - - -#line 143 "calc.y" -#ifndef YYSTYPE -typedef union { - char *str; - int var; -} yystype; -# define YYSTYPE yystype -#endif -#ifndef YYDEBUG -# define YYDEBUG 0 -#endif - - - -#define YYFINAL 118 -#define YYFLAG -32768 -#define YYNTBASE 44 - -/* YYTRANSLATE(YYLEX) -- Bison token number corresponding to YYLEX. */ -#define YYTRANSLATE(x) ((unsigned)(x) <= 284 ? yytranslate[x] : 50) - -/* YYTRANSLATE[YYLEX] -- Bison token number corresponding to YYLEX. */ -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, 39, 2, 2, 2, 36, 2, 2, - 41, 42, 34, 32, 43, 33, 2, 35, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 24, 40, 25, 2, 2, 2, 2, 2, 2, 2, - 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, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 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, 26, 27, - 28, 29, 30, 31, 37 -}; - -#if YYDEBUG -static const short yyprhs[] = -{ - 0, 0, 2, 5, 8, 12, 15, 16, 18, 22, - 24, 26, 28, 30, 34, 38, 42, 46, 50, 54, - 58, 62, 66, 69, 72, 76, 80, 84, 88, 92, - 96, 100, 104, 109, 116, 121, 126, 133, 138, 143, - 148, 157, 164, 169, 171, 173, 175, 179, 181 -}; -static const short yyrhs[] = -{ - 46, 0, 45, 46, 0, 46, 3, 0, 45, 46, - 3, 0, 1, 3, 0, 0, 47, 0, 21, 40, - 47, 0, 5, 0, 6, 0, 7, 0, 8, 0, - 41, 47, 42, 0, 47, 32, 47, 0, 47, 33, - 47, 0, 47, 34, 47, 0, 47, 35, 47, 0, - 47, 36, 47, 0, 47, 38, 47, 0, 47, 30, - 47, 0, 47, 31, 47, 0, 47, 39, 0, 33, - 47, 0, 47, 24, 47, 0, 47, 28, 47, 0, - 47, 26, 47, 0, 47, 27, 47, 0, 47, 29, - 47, 0, 47, 25, 47, 0, 47, 23, 47, 0, - 47, 22, 47, 0, 9, 41, 47, 42, 0, 10, - 41, 47, 43, 47, 42, 0, 11, 41, 47, 42, - 0, 12, 41, 48, 42, 0, 13, 41, 47, 43, - 47, 42, 0, 14, 41, 49, 42, 0, 15, 41, - 47, 42, 0, 16, 41, 47, 42, 0, 17, 41, - 47, 43, 47, 43, 47, 42, 0, 18, 41, 47, - 43, 47, 42, 0, 19, 41, 47, 42, 0, 21, - 0, 20, 0, 47, 0, 48, 43, 47, 0, 47, - 0, 49, 43, 47, 0 -}; - -#endif - -#if YYDEBUG -/* YYRLINE[YYN] -- source line where rule number YYN was defined. */ -static const short yyrline[] = -{ - 0, 167, 169, 171, 173, 174, 176, 178, 183, 189, - 190, 191, 192, 197, 199, 200, 201, 202, 203, 204, - 206, 208, 210, 212, 214, 215, 216, 217, 218, 219, - 221, 222, 224, 225, 227, 229, 230, 232, 233, 235, - 236, 237, 239, 241, 247, 257, 259, 261, 263 -}; -#endif - - -#if (YYDEBUG) || defined YYERROR_VERBOSE - -/* YYTNAME[TOKEN_NUM] -- String name of the token TOKEN_NUM. */ -static const char *const yytname[] = -{ - "$", "error", "$undefined.", "EOS", "BAD", "HELP", "HEX", "DECIMAL", - "QUIT", "ABS", "BIN", "FIB", "GCD", "KRON", "LCM", "LUCNUM", - "NEXTPRIME", "POWM", "ROOT", "SQRT", "NUMBER", "VARIABLE", "LOR", - "LAND", "'<'", "'>'", "EQ", "NE", "LE", "GE", "LSHIFT", "RSHIFT", "'+'", - "'-'", "'*'", "'/'", "'%'", "UMINUS", "'^'", "'!'", "'='", "'('", "')'", - "','", "top", "statements", "statement", "e", "gcdlist", "lcmlist", 0 -}; -#endif - -/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ -static const short yyr1[] = -{ - 0, 44, 44, 45, 45, 45, 46, 46, 46, 46, - 46, 46, 46, 47, 47, 47, 47, 47, 47, 47, - 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, - 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, - 47, 47, 47, 47, 47, 48, 48, 49, 49 -}; - -/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ -static const short yyr2[] = -{ - 0, 1, 2, 2, 3, 2, 0, 1, 3, 1, - 1, 1, 1, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 2, 2, 3, 3, 3, 3, 3, 3, - 3, 3, 4, 6, 4, 4, 6, 4, 4, 4, - 8, 6, 4, 1, 1, 1, 3, 1, 3 -}; - -/* YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE - doesn't specify something else to do. Zero means the default is an - error. */ -static const short yydefact[] = -{ - 0, 0, 9, 10, 11, 12, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 44, 43, 0, - 0, 6, 1, 7, 5, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 43, 23, 0, - 2, 3, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 22, 0, - 0, 0, 45, 0, 0, 47, 0, 0, 0, 0, - 0, 0, 8, 13, 4, 31, 30, 24, 29, 26, - 27, 25, 28, 20, 21, 14, 15, 16, 17, 18, - 19, 32, 0, 34, 35, 0, 0, 37, 0, 38, - 39, 0, 0, 42, 0, 46, 0, 48, 0, 0, - 33, 36, 0, 41, 0, 40, 0, 0, 0 -}; - -static const short yydefgoto[] = -{ - 116, 21, 22, 23, 63, 66 -}; - -static const short yypact[] = -{ - 39, 17,-32768,-32768,-32768,-32768, -20, 0, 2, 25, - 28, 30, 33, 34, 37, 40, 46,-32768, -18, 122, - 122, 89, 67, 462,-32768, 122, 122, 122, 122, 122, - 122, 122, 122, 122, 122, 122, 122,-32768, -36, 252, - 87,-32768, 122, 122, 122, 122, 122, 122, 122, 122, - 122, 122, 122, 122, 122, 122, 122, 122,-32768, 273, - 142, 294, 462, -38, 164, 462, -24, 315, 336, 186, - 208, 357, 462,-32768,-32768, 479, 495, 511, 511, 511, - 511, 511, 511, 29, 29, 50, 50, -36, -36, -36, - -36,-32768, 122,-32768,-32768, 122, 122,-32768, 122,-32768, - -32768, 122, 122,-32768, 378, 462, 399, 462, 230, 420, - -32768,-32768, 122,-32768, 441,-32768, 91, 92,-32768 -}; - -static const short yypgoto[] = -{ - -32768,-32768, 90, -19,-32768,-32768 -}; - - -#define YYLAST 550 - - -static const short yytable[] = -{ - 38, 39, 57, 58, 94, 95, 59, 60, 61, 62, - 64, 65, 67, 68, 69, 70, 71, 72, 97, 98, - 24, 25, 36, 75, 76, 77, 78, 79, 80, 81, - 82, 83, 84, 85, 86, 87, 88, 89, 90, -6, - 1, 26, -6, 27, 2, 3, 4, 5, 6, 7, - 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, - 18, 52, 53, 54, 55, 56, 28, 57, 58, 29, - 41, 30, 19, 104, 31, 32, 105, 106, 33, 107, - 20, 34, 108, 109, 54, 55, 56, 35, 57, 58, - 74, 117, 118, 114, 2, 3, 4, 5, 6, 7, - 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, - 18, 40, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 19, 0, 0, 0, 0, 0, 0, 0, - 20, 6, 7, 8, 9, 10, 11, 12, 13, 14, - 15, 16, 17, 37, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 19, 0, 0, 0, 0, - 0, 0, 0, 20, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, 56, 0, - 57, 58, 0, 0, 0, 92, 42, 43, 44, 45, - 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, - 56, 0, 57, 58, 0, 0, 0, 96, 42, 43, - 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, - 54, 55, 56, 0, 57, 58, 0, 0, 0, 101, - 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, - 52, 53, 54, 55, 56, 0, 57, 58, 0, 0, - 0, 102, 42, 43, 44, 45, 46, 47, 48, 49, - 50, 51, 52, 53, 54, 55, 56, 0, 57, 58, - 0, 0, 0, 112, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, 56, 0, - 57, 58, 0, 0, 73, 42, 43, 44, 45, 46, - 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, - 0, 57, 58, 0, 0, 91, 42, 43, 44, 45, - 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, - 56, 0, 57, 58, 0, 0, 93, 42, 43, 44, - 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, - 55, 56, 0, 57, 58, 0, 0, 99, 42, 43, - 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, - 54, 55, 56, 0, 57, 58, 0, 0, 100, 42, - 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, - 53, 54, 55, 56, 0, 57, 58, 0, 0, 103, - 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, - 52, 53, 54, 55, 56, 0, 57, 58, 0, 0, - 110, 42, 43, 44, 45, 46, 47, 48, 49, 50, - 51, 52, 53, 54, 55, 56, 0, 57, 58, 0, - 0, 111, 42, 43, 44, 45, 46, 47, 48, 49, - 50, 51, 52, 53, 54, 55, 56, 0, 57, 58, - 0, 0, 113, 42, 43, 44, 45, 46, 47, 48, - 49, 50, 51, 52, 53, 54, 55, 56, 0, 57, - 58, 0, 0, 115, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, 56, 0, - 57, 58, 43, 44, 45, 46, 47, 48, 49, 50, - 51, 52, 53, 54, 55, 56, 0, 57, 58, 44, - 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, - 55, 56, 0, 57, 58,-32768,-32768,-32768,-32768,-32768, - -32768, 50, 51, 52, 53, 54, 55, 56, 0, 57, - 58 -}; - -static const short yycheck[] = -{ - 19, 20, 38, 39, 42, 43, 25, 26, 27, 28, - 29, 30, 31, 32, 33, 34, 35, 36, 42, 43, - 3, 41, 40, 42, 43, 44, 45, 46, 47, 48, - 49, 50, 51, 52, 53, 54, 55, 56, 57, 0, - 1, 41, 3, 41, 5, 6, 7, 8, 9, 10, - 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, - 21, 32, 33, 34, 35, 36, 41, 38, 39, 41, - 3, 41, 33, 92, 41, 41, 95, 96, 41, 98, - 41, 41, 101, 102, 34, 35, 36, 41, 38, 39, - 3, 0, 0, 112, 5, 6, 7, 8, 9, 10, - 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, - 21, 21, -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, 33, -1, -1, -1, -1, -1, -1, -1, - 41, 9, 10, 11, 12, 13, 14, 15, 16, 17, - 18, 19, 20, 21, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, 33, -1, -1, -1, -1, - -1, -1, -1, 41, 22, 23, 24, 25, 26, 27, - 28, 29, 30, 31, 32, 33, 34, 35, 36, -1, - 38, 39, -1, -1, -1, 43, 22, 23, 24, 25, - 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, - 36, -1, 38, 39, -1, -1, -1, 43, 22, 23, - 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, - 34, 35, 36, -1, 38, 39, -1, -1, -1, 43, - 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 32, 33, 34, 35, 36, -1, 38, 39, -1, -1, - -1, 43, 22, 23, 24, 25, 26, 27, 28, 29, - 30, 31, 32, 33, 34, 35, 36, -1, 38, 39, - -1, -1, -1, 43, 22, 23, 24, 25, 26, 27, - 28, 29, 30, 31, 32, 33, 34, 35, 36, -1, - 38, 39, -1, -1, 42, 22, 23, 24, 25, 26, - 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, - -1, 38, 39, -1, -1, 42, 22, 23, 24, 25, - 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, - 36, -1, 38, 39, -1, -1, 42, 22, 23, 24, - 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, - 35, 36, -1, 38, 39, -1, -1, 42, 22, 23, - 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, - 34, 35, 36, -1, 38, 39, -1, -1, 42, 22, - 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, - 33, 34, 35, 36, -1, 38, 39, -1, -1, 42, - 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 32, 33, 34, 35, 36, -1, 38, 39, -1, -1, - 42, 22, 23, 24, 25, 26, 27, 28, 29, 30, - 31, 32, 33, 34, 35, 36, -1, 38, 39, -1, - -1, 42, 22, 23, 24, 25, 26, 27, 28, 29, - 30, 31, 32, 33, 34, 35, 36, -1, 38, 39, - -1, -1, 42, 22, 23, 24, 25, 26, 27, 28, - 29, 30, 31, 32, 33, 34, 35, 36, -1, 38, - 39, -1, -1, 42, 22, 23, 24, 25, 26, 27, - 28, 29, 30, 31, 32, 33, 34, 35, 36, -1, - 38, 39, 23, 24, 25, 26, 27, 28, 29, 30, - 31, 32, 33, 34, 35, 36, -1, 38, 39, 24, - 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, - 35, 36, -1, 38, 39, 24, 25, 26, 27, 28, - 29, 30, 31, 32, 33, 34, 35, 36, -1, 38, - 39 -}; -/* -*-C-*- Note some compilers choke on comments on `#line' lines. */ -#line 3 "/usr/share/bison/bison.simple" - -/* Skeleton output parser for bison, - - Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002 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 3, 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, see http://www.gnu.org/licenses/. */ - -/* 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. */ - -/* All symbols defined below should begin with yy or YY, to avoid - infringing on user name space. This should be done even for local - variables, as they might otherwise be expanded by user macros. - There are some unavoidable exceptions within include files to - define necessary library symbols; they are noted "INFRINGES ON - USER NAME SPACE" below. */ - -#if ! defined (yyoverflow) || defined (YYERROR_VERBOSE) - -/* The parser invokes alloca or malloc; define the necessary symbols. */ - -# if YYSTACK_USE_ALLOCA -# define YYSTACK_ALLOC alloca -# else -# ifndef YYSTACK_USE_ALLOCA -# if defined (alloca) || defined (_ALLOCA_H) -# define YYSTACK_ALLOC alloca -# else -# ifdef __GNUC__ -# define YYSTACK_ALLOC __builtin_alloca -# endif -# endif -# endif -# endif - -# ifdef YYSTACK_ALLOC - /* Pacify GCC's `empty if-body' warning. */ -# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0) -# else -# if defined (__STDC__) || defined (__cplusplus) -# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */ -# define YYSIZE_T size_t -# endif -# define YYSTACK_ALLOC malloc -# define YYSTACK_FREE free -# endif - -/* A type that is properly aligned for any stack member. */ -union yyalloc -{ - short yyss; - YYSTYPE yyvs; -# if YYLSP_NEEDED - YYLTYPE yyls; -# endif -}; - -/* The size of the maximum gap between one aligned stack and the next. */ -# define YYSTACK_GAP_MAX (sizeof (union yyalloc) - 1) - -/* The size of an array large to enough to hold all stacks, each with - N elements. */ -# if YYLSP_NEEDED -# define YYSTACK_BYTES(N) \ - ((N) * (sizeof (short) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \ - + 2 * YYSTACK_GAP_MAX) -# else -# define YYSTACK_BYTES(N) \ - ((N) * (sizeof (short) + sizeof (YYSTYPE)) \ - + YYSTACK_GAP_MAX) -# endif - -/* Relocate the TYPE STACK from its old location to the new one. The - local variables YYSIZE and YYSTACKSIZE give the old and new number of - elements in the stack, and YYPTR gives the new location of the - stack. Advance YYPTR to a properly aligned location for the next - stack. */ -# define YYSTACK_RELOCATE(Type, Stack) \ - do \ - { \ - YYSIZE_T yynewbytes; \ - yymemcpy ((char *) yyptr, (char *) (Stack), \ - yysize * (YYSIZE_T) sizeof (Type)); \ - Stack = &yyptr->Stack; \ - yynewbytes = yystacksize * sizeof (Type) + YYSTACK_GAP_MAX; \ - yyptr += yynewbytes / sizeof (*yyptr); \ - } \ - while (0) - -#endif /* ! defined (yyoverflow) || defined (YYERROR_VERBOSE) */ - - -#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__) -# define YYSIZE_T __SIZE_TYPE__ -#endif -#if ! defined (YYSIZE_T) && defined (size_t) -# define YYSIZE_T size_t -#endif -#if ! defined (YYSIZE_T) -# if defined (__STDC__) || defined (__cplusplus) -# include <stddef.h> /* INFRINGES ON USER NAME SPACE */ -# define YYSIZE_T size_t -# endif -#endif -#if ! defined (YYSIZE_T) -# define YYSIZE_T unsigned int -#endif - -#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 - - -/* YYLLOC_DEFAULT -- Compute the default location (before the actions - are run). - - When YYLLOC_DEFAULT is run, CURRENT is set the location of the - first token. By default, to implement support for ranges, extend - its range to the last symbol. */ - -#ifndef YYLLOC_DEFAULT -# define YYLLOC_DEFAULT(Current, Rhs, N) \ - Current.last_line = Rhs[N].last_line; \ - Current.last_column = Rhs[N].last_column; -#endif - - -/* YYLEX -- calling `yylex' with the right arguments. */ - -#if YYPURE -# if YYLSP_NEEDED -# ifdef YYLEX_PARAM -# define YYLEX yylex (&yylval, &yylloc, YYLEX_PARAM) -# else -# define YYLEX yylex (&yylval, &yylloc) -# endif -# else /* !YYLSP_NEEDED */ -# ifdef YYLEX_PARAM -# define YYLEX yylex (&yylval, YYLEX_PARAM) -# else -# define YYLEX yylex (&yylval) -# endif -# endif /* !YYLSP_NEEDED */ -#else /* !YYPURE */ -# define YYLEX yylex () -#endif /* !YYPURE */ - - -/* Enable debugging if requested. */ -#if YYDEBUG - -# ifndef YYFPRINTF -# include <stdio.h> /* INFRINGES ON USER NAME SPACE */ -# define YYFPRINTF fprintf -# endif - -# define YYDPRINTF(Args) \ -do { \ - if (yydebug) \ - YYFPRINTF Args; \ -} while (0) -/* Nonzero means print parse trace. It is left uninitialized so that - multiple parsers can coexist. */ -int yydebug; -#else /* !YYDEBUG */ -# define YYDPRINTF(Args) -#endif /* !YYDEBUG */ - -/* YYINITDEPTH -- initial size of the parser's stacks. */ -#ifndef YYINITDEPTH -# define YYINITDEPTH 200 -#endif - -/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only - if the built-in stack extension method is used). - - Do not make this value too large; the results are undefined if - SIZE_MAX < YYSTACK_BYTES (YYMAXDEPTH) - evaluated with infinite-precision integer arithmetic. */ - -#if YYMAXDEPTH == 0 -# undef YYMAXDEPTH -#endif - -#ifndef YYMAXDEPTH -# define YYMAXDEPTH 10000 -#endif - -#if ! defined (yyoverflow) && ! defined (yymemcpy) -# if __GNUC__ > 1 /* GNU C and GNU C++ define this. */ -# define yymemcpy __builtin_memcpy -# else /* not GNU C or C++ */ - -/* This is the most reliable way to avoid incompatibilities - in available built-in functions on various systems. */ -static void -# if defined (__STDC__) || defined (__cplusplus) -yymemcpy (char *yyto, const char *yyfrom, YYSIZE_T yycount) -# else -yymemcpy (yyto, yyfrom, yycount) - char *yyto; - const char *yyfrom; - YYSIZE_T yycount; -# endif -{ - register const char *yyf = yyfrom; - register char *yyt = yyto; - register YYSIZE_T yyi = yycount; - - while (yyi-- != 0) - *yyt++ = *yyf++; -} -# endif -#endif - -#ifdef YYERROR_VERBOSE - -# ifndef yystrlen -# if defined (__GLIBC__) && defined (_STRING_H) -# define yystrlen strlen -# else -/* Return the length of YYSTR. */ -static YYSIZE_T -# if defined (__STDC__) || defined (__cplusplus) -yystrlen (const char *yystr) -# else -yystrlen (yystr) - const char *yystr; -# endif -{ - register const char *yys = yystr; - - while (*yys++ != '\0') - continue; - - return yys - yystr - 1; -} -# endif -# endif - -# ifndef yystpcpy -# if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE) -# define yystpcpy stpcpy -# else -/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in - YYDEST. */ -static char * -# if defined (__STDC__) || defined (__cplusplus) -yystpcpy (char *yydest, const char *yysrc) -# else -yystpcpy (yydest, yysrc) - char *yydest; - const char *yysrc; -# endif -{ - register char *yyd = yydest; - register const char *yys = yysrc; - - while ((*yyd++ = *yys++) != '\0') - continue; - - return yyd - 1; -} -# endif -# endif -#endif - -#line 319 "/usr/share/bison/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 -# if defined (__STDC__) || defined (__cplusplus) -# define YYPARSE_PARAM_ARG void *YYPARSE_PARAM -# define YYPARSE_PARAM_DECL -# else -# define YYPARSE_PARAM_ARG YYPARSE_PARAM -# define YYPARSE_PARAM_DECL void *YYPARSE_PARAM; -# endif -#else /* !YYPARSE_PARAM */ -# define YYPARSE_PARAM_ARG -# define YYPARSE_PARAM_DECL -#endif /* !YYPARSE_PARAM */ - -/* Prevent warning if -Wstrict-prototypes. */ -#ifdef __GNUC__ -# ifdef YYPARSE_PARAM -int yyparse (void *); -# else -int yyparse (void); -# endif -#endif - -/* YY_DECL_VARIABLES -- depending whether we use a pure parser, - variables are global, or local to YYPARSE. */ - -#define YY_DECL_NON_LSP_VARIABLES \ -/* The lookahead symbol. */ \ -int yychar; \ - \ -/* The semantic value of the lookahead symbol. */ \ -YYSTYPE yylval; \ - \ -/* Number of parse errors so far. */ \ -int yynerrs; - -#if YYLSP_NEEDED -# define YY_DECL_VARIABLES \ -YY_DECL_NON_LSP_VARIABLES \ - \ -/* Location data for the lookahead symbol. */ \ -YYLTYPE yylloc; -#else -# define YY_DECL_VARIABLES \ -YY_DECL_NON_LSP_VARIABLES -#endif - - -/* If nonreentrant, generate the variables here. */ - -#if !YYPURE -YY_DECL_VARIABLES -#endif /* !YYPURE */ - -int -yyparse (YYPARSE_PARAM_ARG) - YYPARSE_PARAM_DECL -{ - /* If reentrant, generate the variables here. */ -#if YYPURE - YY_DECL_VARIABLES -#endif /* !YYPURE */ - - register int yystate; - register int yyn; - int yyresult; - /* Number of tokens to shift before error messages enabled. */ - int yyerrstatus; - /* Lookahead token as an internal (translated) token number. */ - int yychar1 = 0; - - /* Three stacks and their tools: - `yyss': related to states, - `yyvs': related to semantic values, - `yyls': related to locations. - - Refer to the stacks thru separate pointers, to allow yyoverflow - to reallocate them elsewhere. */ - - /* The state stack. */ - short yyssa[YYINITDEPTH]; - short *yyss = yyssa; - register short *yyssp; - - /* The semantic value stack. */ - YYSTYPE yyvsa[YYINITDEPTH]; - YYSTYPE *yyvs = yyvsa; - register YYSTYPE *yyvsp; - -#if YYLSP_NEEDED - /* The location stack. */ - YYLTYPE yylsa[YYINITDEPTH]; - YYLTYPE *yyls = yylsa; - YYLTYPE *yylsp; -#endif - -#if YYLSP_NEEDED -# define YYPOPSTACK (yyvsp--, yyssp--, yylsp--) -#else -# define YYPOPSTACK (yyvsp--, yyssp--) -#endif - - YYSIZE_T yystacksize = YYINITDEPTH; - - - /* The variables used to return semantic value and location from the - action routines. */ - YYSTYPE yyval; -#if YYLSP_NEEDED - YYLTYPE yyloc; -#endif - - /* When reducing, the number of symbols on the RHS of the reduced - rule. */ - int yylen; - - YYDPRINTF ((stderr, "Starting parse\n")); - - 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; - yyvsp = yyvs; -#if YYLSP_NEEDED - yylsp = yyls; -#endif - goto yysetstate; - -/*------------------------------------------------------------. -| yynewstate -- Push a new state, which is found in yystate. | -`------------------------------------------------------------*/ - yynewstate: - /* In all cases, when you get here, the value and location stacks - have just been pushed. so pushing a state here evens the stacks. - */ - yyssp++; - - yysetstate: - *yyssp = yystate; - - if (yyssp >= yyss + yystacksize - 1) - { - /* Get the current used size of the three stacks, in elements. */ - YYSIZE_T yysize = yyssp - yyss + 1; - -#ifdef yyoverflow - { - /* 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; - - /* Each stack pointer address is followed by the size of the - data in use in that stack, in bytes. */ -# if YYLSP_NEEDED - YYLTYPE *yyls1 = yyls; - /* 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, yysize * sizeof (*yyssp), - &yyvs1, yysize * sizeof (*yyvsp), - &yyls1, yysize * sizeof (*yylsp), - &yystacksize); - yyls = yyls1; -# else - yyoverflow ("parser stack overflow", - &yyss1, yysize * sizeof (*yyssp), - &yyvs1, yysize * sizeof (*yyvsp), - &yystacksize); -# endif - yyss = yyss1; - yyvs = yyvs1; - } -#else /* no yyoverflow */ - /* Extend the stack our own way. */ - if (yystacksize >= YYMAXDEPTH) - goto yyoverflowlab; - yystacksize *= 2; - if (yystacksize > YYMAXDEPTH) - yystacksize = YYMAXDEPTH; - - { - short *yyss1 = yyss; - union yyalloc *yyptr = - (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); - if (! yyptr) - goto yyoverflowlab; - YYSTACK_RELOCATE (short, yyss); - YYSTACK_RELOCATE (YYSTYPE, yyvs); -# if YYLSP_NEEDED - YYSTACK_RELOCATE (YYLTYPE, yyls); -# endif -# undef YYSTACK_RELOCATE - if (yyss1 != yyssa) - YYSTACK_FREE (yyss1); - } -#endif /* no yyoverflow */ - - yyssp = yyss + yysize - 1; - yyvsp = yyvs + yysize - 1; -#if YYLSP_NEEDED - yylsp = yyls + yysize - 1; -#endif - - YYDPRINTF ((stderr, "Stack size increased to %lu\n", - (unsigned long int) yystacksize)); - - if (yyssp >= yyss + yystacksize - 1) - YYABORT; - } - - YYDPRINTF ((stderr, "Entering state %d\n", yystate)); - - goto yybackup; - - -/*-----------. -| 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) - { - YYDPRINTF ((stderr, "Reading a token: ")); - 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 */ - - YYDPRINTF ((stderr, "Now at end of input.\n")); - } - else - { - yychar1 = YYTRANSLATE (yychar); - -#if YYDEBUG - /* We have to keep this `#if YYDEBUG', since we use variables - which are defined only if `YYDEBUG' is set. */ - if (yydebug) - { - YYFPRINTF (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 - YYFPRINTF (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. */ - YYDPRINTF ((stderr, "Shifting token %d (%s), ", - yychar, yytname[yychar1])); - - /* Discard the token being shifted unless it is eof. */ - if (yychar != YYEOF) - yychar = YYEMPTY; - - *++yyvsp = yylval; -#if YYLSP_NEEDED - *++yylsp = yylloc; -#endif - - /* Count tokens shifted since error; after three, turn off error - status. */ - if (yyerrstatus) - yyerrstatus--; - - yystate = yyn; - goto yynewstate; - - -/*-----------------------------------------------------------. -| yydefault -- do the default action for the current state. | -`-----------------------------------------------------------*/ -yydefault: - yyn = yydefact[yystate]; - if (yyn == 0) - goto yyerrlab; - goto yyreduce; - - -/*-----------------------------. -| yyreduce -- Do a reduction. | -`-----------------------------*/ -yyreduce: - /* yyn is the number of a rule to reduce with. */ - yylen = yyr2[yyn]; - - /* If YYLEN is nonzero, implement the default value of the action: - `$$ = $1'. - - Otherwise, the following line sets YYVAL to the semantic value of - the lookahead token. This behavior is undocumented and Bison - users should not rely upon it. Assigning to YYVAL - unconditionally makes the parser a bit smaller, and it avoids a - GCC warning that YYVAL may be used uninitialized. */ - yyval = yyvsp[1-yylen]; - -#if YYLSP_NEEDED - /* Similarly for the default location. Let the user run additional - commands if for instance locations are ranges. */ - yyloc = yylsp[1-yylen]; - YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen); -#endif - -#if YYDEBUG - /* We have to keep this `#if YYDEBUG', since we use variables which - are defined only if `YYDEBUG' is set. */ - if (yydebug) - { - int yyi; - - YYFPRINTF (stderr, "Reducing via rule %d (line %d), ", - yyn, yyrline[yyn]); - - /* Print the symbols being reduced, and their result. */ - for (yyi = yyprhs[yyn]; yyrhs[yyi] > 0; yyi++) - YYFPRINTF (stderr, "%s ", yytname[yyrhs[yyi]]); - YYFPRINTF (stderr, " -> %s\n", yytname[yyr1[yyn]]); - } -#endif - - switch (yyn) { - -case 5: -#line 174 "calc.y" -{ sp = stack[0]; yyerrok; } - break; -case 7: -#line 178 "calc.y" -{ - mpz_out_str (stdout, obase, sp); putchar ('\n'); - sp--; - CHECK_EMPTY (); - } - break; -case 8: -#line 183 "calc.y" -{ - CHECK_VARIABLE (yyvsp[-2].var); - mpz_swap (variable[yyvsp[-2].var], sp); - sp--; - CHECK_EMPTY (); - } - break; -case 9: -#line 189 "calc.y" -{ calc_help (); } - break; -case 10: -#line 190 "calc.y" -{ ibase = 16; obase = -16; } - break; -case 11: -#line 191 "calc.y" -{ ibase = 0; obase = 10; } - break; -case 12: -#line 192 "calc.y" -{ exit (0); } - break; -case 14: -#line 199 "calc.y" -{ sp--; mpz_add (sp, sp, sp+1); } - break; -case 15: -#line 200 "calc.y" -{ sp--; mpz_sub (sp, sp, sp+1); } - break; -case 16: -#line 201 "calc.y" -{ sp--; mpz_mul (sp, sp, sp+1); } - break; -case 17: -#line 202 "calc.y" -{ sp--; mpz_fdiv_q (sp, sp, sp+1); } - break; -case 18: -#line 203 "calc.y" -{ sp--; mpz_fdiv_r (sp, sp, sp+1); } - break; -case 19: -#line 204 "calc.y" -{ CHECK_UI ("Exponent", sp); - sp--; mpz_pow_ui (sp, sp, mpz_get_ui (sp+1)); } - break; -case 20: -#line 206 "calc.y" -{ CHECK_UI ("Shift count", sp); - sp--; mpz_mul_2exp (sp, sp, mpz_get_ui (sp+1)); } - break; -case 21: -#line 208 "calc.y" -{ CHECK_UI ("Shift count", sp); - sp--; mpz_fdiv_q_2exp (sp, sp, mpz_get_ui (sp+1)); } - break; -case 22: -#line 210 "calc.y" -{ CHECK_UI ("Factorial", sp); - mpz_fac_ui (sp, mpz_get_ui (sp)); } - break; -case 23: -#line 212 "calc.y" -{ mpz_neg (sp, sp); } - break; -case 24: -#line 214 "calc.y" -{ sp--; mpz_set_ui (sp, mpz_cmp (sp, sp+1) < 0); } - break; -case 25: -#line 215 "calc.y" -{ sp--; mpz_set_ui (sp, mpz_cmp (sp, sp+1) <= 0); } - break; -case 26: -#line 216 "calc.y" -{ sp--; mpz_set_ui (sp, mpz_cmp (sp, sp+1) == 0); } - break; -case 27: -#line 217 "calc.y" -{ sp--; mpz_set_ui (sp, mpz_cmp (sp, sp+1) != 0); } - break; -case 28: -#line 218 "calc.y" -{ sp--; mpz_set_ui (sp, mpz_cmp (sp, sp+1) >= 0); } - break; -case 29: -#line 219 "calc.y" -{ sp--; mpz_set_ui (sp, mpz_cmp (sp, sp+1) > 0); } - break; -case 30: -#line 221 "calc.y" -{ sp--; mpz_set_ui (sp, mpz_sgn (sp) && mpz_sgn (sp+1)); } - break; -case 31: -#line 222 "calc.y" -{ sp--; mpz_set_ui (sp, mpz_sgn (sp) || mpz_sgn (sp+1)); } - break; -case 32: -#line 224 "calc.y" -{ mpz_abs (sp, sp); } - break; -case 33: -#line 225 "calc.y" -{ sp--; CHECK_UI ("Binomial base", sp+1); - mpz_bin_ui (sp, sp, mpz_get_ui (sp+1)); } - break; -case 34: -#line 227 "calc.y" -{ CHECK_UI ("Fibonacci", sp); - mpz_fib_ui (sp, mpz_get_ui (sp)); } - break; -case 36: -#line 230 "calc.y" -{ sp--; mpz_set_si (sp, - mpz_kronecker (sp, sp+1)); } - break; -case 38: -#line 233 "calc.y" -{ CHECK_UI ("Lucas number", sp); - mpz_lucnum_ui (sp, mpz_get_ui (sp)); } - break; -case 39: -#line 235 "calc.y" -{ mpz_nextprime (sp, sp); } - break; -case 40: -#line 236 "calc.y" -{ sp -= 2; mpz_powm (sp, sp, sp+1, sp+2); } - break; -case 41: -#line 237 "calc.y" -{ sp--; CHECK_UI ("Nth-root", sp+1); - mpz_root (sp, sp, mpz_get_ui (sp+1)); } - break; -case 42: -#line 239 "calc.y" -{ mpz_sqrt (sp, sp); } - break; -case 43: -#line 241 "calc.y" -{ - sp++; - CHECK_OVERFLOW (); - CHECK_VARIABLE (yyvsp[0].var); - mpz_set (sp, variable[yyvsp[0].var]); - } - break; -case 44: -#line 247 "calc.y" -{ - sp++; - CHECK_OVERFLOW (); - if (mpz_set_str (sp, yyvsp[0].str, ibase) != 0) - { - fprintf (stderr, "Invalid number: %s\n", yyvsp[0].str); - YYERROR; - } - } - break; -case 46: -#line 259 "calc.y" -{ sp--; mpz_gcd (sp, sp, sp+1); } - break; -case 48: -#line 263 "calc.y" -{ sp--; mpz_lcm (sp, sp, sp+1); } - break; -} - -#line 705 "/usr/share/bison/bison.simple" - - - yyvsp -= yylen; - yyssp -= yylen; -#if YYLSP_NEEDED - yylsp -= yylen; -#endif - -#if YYDEBUG - if (yydebug) - { - short *yyssp1 = yyss - 1; - YYFPRINTF (stderr, "state stack now"); - while (yyssp1 != yyssp) - YYFPRINTF (stderr, " %d", *++yyssp1); - YYFPRINTF (stderr, "\n"); - } -#endif - - *++yyvsp = yyval; -#if YYLSP_NEEDED - *++yylsp = yyloc; -#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 | -`------------------------------------*/ -yyerrlab: - /* If not already recovering from an error, report this error. */ - if (!yyerrstatus) - { - ++yynerrs; - -#ifdef YYERROR_VERBOSE - yyn = yypact[yystate]; - - if (yyn > YYFLAG && yyn < YYLAST) - { - YYSIZE_T yysize = 0; - char *yymsg; - int yyx, yycount; - - yycount = 0; - /* Start YYX at -YYN if negative to avoid negative indexes in - YYCHECK. */ - for (yyx = yyn < 0 ? -yyn : 0; - yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++) - if (yycheck[yyx + yyn] == yyx) - yysize += yystrlen (yytname[yyx]) + 15, yycount++; - yysize += yystrlen ("parse error, unexpected ") + 1; - yysize += yystrlen (yytname[YYTRANSLATE (yychar)]); - yymsg = (char *) YYSTACK_ALLOC (yysize); - if (yymsg != 0) - { - char *yyp = yystpcpy (yymsg, "parse error, unexpected "); - yyp = yystpcpy (yyp, yytname[YYTRANSLATE (yychar)]); - - if (yycount < 5) - { - yycount = 0; - for (yyx = yyn < 0 ? -yyn : 0; - yyx < (int) (sizeof (yytname) / sizeof (char *)); - yyx++) - if (yycheck[yyx + yyn] == yyx) - { - const char *yyq = ! yycount ? ", expecting " : " or "; - yyp = yystpcpy (yyp, yyq); - yyp = yystpcpy (yyp, yytname[yyx]); - yycount++; - } - } - yyerror (yymsg); - YYSTACK_FREE (yymsg); - } - else - yyerror ("parse error; also virtual memory exhausted"); - } - else -#endif /* defined (YYERROR_VERBOSE) */ - yyerror ("parse error"); - } - goto yyerrlab1; - - -/*--------------------------------------------------. -| yyerrlab1 -- error raised explicitly by an action | -`--------------------------------------------------*/ -yyerrlab1: - 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; - YYDPRINTF ((stderr, "Discarding token %d (%s).\n", - yychar, yytname[yychar1])); - 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. | -`-------------------------------------------------------------------*/ -yyerrdefault: -#if 0 - /* This is wrong; only states that explicitly want error tokens - should shift them. */ - - /* If its default is to accept any token, ok. Otherwise pop it. */ - yyn = yydefact[yystate]; - if (yyn) - goto yydefault; -#endif - - -/*---------------------------------------------------------------. -| yyerrpop -- pop the current state because it cannot handle the | -| error token | -`---------------------------------------------------------------*/ -yyerrpop: - if (yyssp == yyss) - YYABORT; - yyvsp--; - yystate = *--yyssp; -#if YYLSP_NEEDED - yylsp--; -#endif - -#if YYDEBUG - if (yydebug) - { - short *yyssp1 = yyss - 1; - YYFPRINTF (stderr, "Error: state stack now"); - while (yyssp1 != yyssp) - YYFPRINTF (stderr, " %d", *++yyssp1); - YYFPRINTF (stderr, "\n"); - } -#endif - -/*--------------. -| yyerrhandle. | -`--------------*/ -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; - - YYDPRINTF ((stderr, "Shifting error token, ")); - - *++yyvsp = yylval; -#if YYLSP_NEEDED - *++yylsp = yylloc; -#endif - - yystate = yyn; - goto yynewstate; - - -/*-------------------------------------. -| yyacceptlab -- YYACCEPT comes here. | -`-------------------------------------*/ -yyacceptlab: - yyresult = 0; - goto yyreturn; - -/*-----------------------------------. -| yyabortlab -- YYABORT comes here. | -`-----------------------------------*/ -yyabortlab: - yyresult = 1; - goto yyreturn; - -/*---------------------------------------------. -| yyoverflowab -- parser overflow comes here. | -`---------------------------------------------*/ -yyoverflowlab: - yyerror ("parser stack overflow"); - yyresult = 2; - /* Fall through. */ - -yyreturn: -#ifndef yyoverflow - if (yyss != yyssa) - YYSTACK_FREE (yyss); -#endif - return yyresult; -} -#line 265 "calc.y" - - -yyerror (char *s) -{ - fprintf (stderr, "%s\n", s); -} - -int calc_option_readline = -1; - -int -main (int argc, char *argv[]) -{ - int i; - - for (i = 1; i < argc; i++) - { - if (strcmp (argv[i], "--readline") == 0) - calc_option_readline = 1; - else if (strcmp (argv[i], "--noreadline") == 0) - calc_option_readline = 0; - else if (strcmp (argv[i], "--help") == 0) - { - printf ("Usage: calc [--option]...\n"); - printf (" --readline use readline\n"); - printf (" --noreadline don't use readline\n"); - printf (" --help this message\n"); - printf ("Readline is only available when compiled in,\n"); - printf ("and in that case it's the default on a tty.\n"); - exit (0); - } - else - { - fprintf (stderr, "Unrecognised option: %s\n", argv[i]); - exit (1); - } - } - -#if WITH_READLINE - calc_init_readline (); -#else - if (calc_option_readline == 1) - { - fprintf (stderr, "Readline support not available\n"); - exit (1); - } -#endif - - for (i = 0; i < numberof (variable); i++) - mpz_init (variable[i]); - - for (i = 0; i < numberof (stack); i++) - mpz_init (stack[i]); - - return yyparse (); -} diff --git a/demos/calc/calc.h b/demos/calc/calc.h deleted file mode 100644 index 448cc425c..000000000 --- a/demos/calc/calc.h +++ /dev/null @@ -1,43 +0,0 @@ -#ifndef BISON_CALC_H -# define BISON_CALC_H - -#ifndef YYSTYPE -typedef union { - char *str; - int var; -} yystype; -# define YYSTYPE yystype -#endif -# define EOS 257 -# define BAD 258 -# define HELP 259 -# define HEX 260 -# define DECIMAL 261 -# define QUIT 262 -# define ABS 263 -# define BIN 264 -# define FIB 265 -# define GCD 266 -# define KRON 267 -# define LCM 268 -# define LUCNUM 269 -# define NEXTPRIME 270 -# define POWM 271 -# define ROOT 272 -# define SQRT 273 -# define NUMBER 274 -# define VARIABLE 275 -# define LOR 276 -# define LAND 277 -# define EQ 278 -# define NE 279 -# define LE 280 -# define GE 281 -# define LSHIFT 282 -# define RSHIFT 283 -# define UMINUS 284 - - -extern YYSTYPE yylval; - -#endif /* not BISON_CALC_H */ diff --git a/demos/calc/calclex.c b/demos/calc/calclex.c deleted file mode 100644 index 1d319ef94..000000000 --- a/demos/calc/calclex.c +++ /dev/null @@ -1,1704 +0,0 @@ -#line 2 "calclex.c" -/* A lexical scanner generated by flex */ - -/* Scanner skeleton version: - * $Header$ - */ - -#define FLEX_SCANNER -#define YY_FLEX_MAJOR_VERSION 2 -#define YY_FLEX_MINOR_VERSION 5 - -#include <stdio.h> -#include <errno.h> - -/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */ -#ifdef c_plusplus -#ifndef __cplusplus -#define __cplusplus -#endif -#endif - - -#ifdef __cplusplus - -#include <stdlib.h> -#ifndef _WIN32 -#include <unistd.h> -#endif - -/* Use prototypes in function declarations. */ -#define YY_USE_PROTOS - -/* The "const" storage-class-modifier is valid. */ -#define YY_USE_CONST - -#else /* ! __cplusplus */ - -#if __STDC__ - -#define YY_USE_PROTOS -#define YY_USE_CONST - -#endif /* __STDC__ */ -#endif /* ! __cplusplus */ - -#ifdef __TURBOC__ - #pragma warn -rch - #pragma warn -use -#include <io.h> -#include <stdlib.h> -#define YY_USE_CONST -#define YY_USE_PROTOS -#endif - -#ifdef YY_USE_CONST -#define yyconst const -#else -#define yyconst -#endif - - -#ifdef YY_USE_PROTOS -#define YY_PROTO(proto) proto -#else -#define YY_PROTO(proto) () -#endif - -/* Returned upon end-of-file. */ -#define YY_NULL 0 - -/* Promotes a possibly negative, possibly signed char to an unsigned - * integer for use as an array index. If the signed char is negative, - * we want to instead treat it as an 8-bit unsigned char, hence the - * double cast. - */ -#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c) - -/* Enter a start condition. This macro really ought to take a parameter, - * but we do it the disgusting crufty way forced on us by the ()-less - * definition of BEGIN. - */ -#define BEGIN yy_start = 1 + 2 * - -/* Translate the current start state into a value that can be later handed - * to BEGIN to return to the state. The YYSTATE alias is for lex - * compatibility. - */ -#define YY_START ((yy_start - 1) / 2) -#define YYSTATE YY_START - -/* Action number for EOF rule of a given start state. */ -#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) - -/* Special action meaning "start processing a new file". */ -#define YY_NEW_FILE yyrestart( yyin ) - -#define YY_END_OF_BUFFER_CHAR 0 - -/* Size of default input buffer. */ -#define YY_BUF_SIZE 16384 - -typedef struct yy_buffer_state *YY_BUFFER_STATE; - -extern int yyleng; -extern FILE *yyin, *yyout; - -#define EOB_ACT_CONTINUE_SCAN 0 -#define EOB_ACT_END_OF_FILE 1 -#define EOB_ACT_LAST_MATCH 2 - -/* The funky do-while in the following #define is used to turn the definition - * int a single C statement (which needs a semi-colon terminator). This - * avoids problems with code like: - * - * if ( condition_holds ) - * yyless( 5 ); - * else - * do_something_else(); - * - * Prior to using the do-while the compiler would get upset at the - * "else" because it interpreted the "if" statement as being all - * done when it reached the ';' after the yyless() call. - */ - -/* Return all but the first 'n' matched characters back to the input stream. */ - -#define yyless(n) \ - do \ - { \ - /* Undo effects of setting up yytext. */ \ - *yy_cp = yy_hold_char; \ - YY_RESTORE_YY_MORE_OFFSET \ - yy_c_buf_p = yy_cp = yy_bp + n - YY_MORE_ADJ; \ - YY_DO_BEFORE_ACTION; /* set up yytext again */ \ - } \ - while ( 0 ) - -#define unput(c) yyunput( c, yytext_ptr ) - -/* The following is because we cannot portably get our hands on size_t - * (without autoconf's help, which isn't available because we want - * flex-generated scanners to compile on their own). - */ -typedef unsigned int yy_size_t; - - -struct yy_buffer_state - { - FILE *yy_input_file; - - char *yy_ch_buf; /* input buffer */ - char *yy_buf_pos; /* current position in input buffer */ - - /* Size of input buffer in bytes, not including room for EOB - * characters. - */ - yy_size_t yy_buf_size; - - /* Number of characters read into yy_ch_buf, not including EOB - * characters. - */ - int yy_n_chars; - - /* Whether we "own" the buffer - i.e., we know we created it, - * and can realloc() it to grow it, and should free() it to - * delete it. - */ - int yy_is_our_buffer; - - /* Whether this is an "interactive" input source; if so, and - * if we're using stdio for input, then we want to use getc() - * instead of fread(), to make sure we stop fetching input after - * each newline. - */ - int yy_is_interactive; - - /* Whether we're considered to be at the beginning of a line. - * If so, '^' rules will be active on the next match, otherwise - * not. - */ - int yy_at_bol; - - /* Whether to try to fill the input buffer when we reach the - * end of it. - */ - int yy_fill_buffer; - - int yy_buffer_status; -#define YY_BUFFER_NEW 0 -#define YY_BUFFER_NORMAL 1 - /* When an EOF's been seen but there's still some text to process - * then we mark the buffer as YY_EOF_PENDING, to indicate that we - * shouldn't try reading from the input source any more. We might - * still have a bunch of tokens to match, though, because of - * possible backing-up. - * - * When we actually see the EOF, we change the status to "new" - * (via yyrestart()), so that the user can continue scanning by - * just pointing yyin at a new input file. - */ -#define YY_BUFFER_EOF_PENDING 2 - }; - -static YY_BUFFER_STATE yy_current_buffer = 0; - -/* We provide macros for accessing buffer states in case in the - * future we want to put the buffer states in a more general - * "scanner state". - */ -#define YY_CURRENT_BUFFER yy_current_buffer - - -/* yy_hold_char holds the character lost when yytext is formed. */ -static char yy_hold_char; - -static int yy_n_chars; /* number of characters read into yy_ch_buf */ - - -int yyleng; - -/* Points to current character in buffer. */ -static char *yy_c_buf_p = (char *) 0; -static int yy_init = 1; /* whether we need to initialize */ -static int yy_start = 0; /* start state number */ - -/* Flag which is used to allow yywrap()'s to do buffer switches - * instead of setting up a fresh yyin. A bit of a hack ... - */ -static int yy_did_buffer_switch_on_eof; - -void yyrestart YY_PROTO(( FILE *input_file )); - -void yy_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer )); -void yy_load_buffer_state YY_PROTO(( void )); -YY_BUFFER_STATE yy_create_buffer YY_PROTO(( FILE *file, int size )); -void yy_delete_buffer YY_PROTO(( YY_BUFFER_STATE b )); -void yy_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file )); -void yy_flush_buffer YY_PROTO(( YY_BUFFER_STATE b )); -#define YY_FLUSH_BUFFER yy_flush_buffer( yy_current_buffer ) - -YY_BUFFER_STATE yy_scan_buffer YY_PROTO(( char *base, yy_size_t size )); -YY_BUFFER_STATE yy_scan_string YY_PROTO(( yyconst char *yy_str )); -YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len )); - -static void *yy_flex_alloc YY_PROTO(( yy_size_t )); -static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t )); -static void yy_flex_free YY_PROTO(( void * )); - -#define yy_new_buffer yy_create_buffer - -#define yy_set_interactive(is_interactive) \ - { \ - if ( ! yy_current_buffer ) \ - yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \ - yy_current_buffer->yy_is_interactive = is_interactive; \ - } - -#define yy_set_bol(at_bol) \ - { \ - if ( ! yy_current_buffer ) \ - yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \ - yy_current_buffer->yy_at_bol = at_bol; \ - } - -#define YY_AT_BOL() (yy_current_buffer->yy_at_bol) - -typedef unsigned char YY_CHAR; -FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0; -typedef int yy_state_type; -extern char *yytext; -#define yytext_ptr yytext - -static yy_state_type yy_get_previous_state YY_PROTO(( void )); -static yy_state_type yy_try_NUL_trans YY_PROTO(( yy_state_type current_state )); -static int yy_get_next_buffer YY_PROTO(( void )); -static void yy_fatal_error YY_PROTO(( yyconst char msg[] )); - -/* Done after the current pattern has been matched and before the - * corresponding action - sets up yytext. - */ -#define YY_DO_BEFORE_ACTION \ - yytext_ptr = yy_bp; \ - yyleng = (int) (yy_cp - yy_bp); \ - yy_hold_char = *yy_cp; \ - *yy_cp = '\0'; \ - yy_c_buf_p = yy_cp; - -#define YY_NUM_RULES 19 -#define YY_END_OF_BUFFER 20 -static yyconst short int yy_accept[39] = - { 0, - 0, 0, 20, 18, 1, 2, 7, 6, 7, 18, - 16, 16, 2, 7, 7, 7, 16, 17, 18, 18, - 11, 6, 5, 6, 14, 16, 0, 12, 8, 10, - 9, 13, 16, 17, 3, 15, 4, 0 - } ; - -static yyconst int yy_ec[256] = - { 0, - 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, - 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 2, 4, 1, 5, 1, 6, 7, 1, 6, - 6, 6, 6, 6, 6, 1, 6, 8, 9, 9, - 9, 9, 9, 9, 9, 9, 9, 1, 10, 11, - 12, 13, 1, 1, 14, 14, 14, 14, 14, 14, - 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 16, 15, 15, - 1, 17, 1, 6, 1, 1, 15, 15, 15, 15, - - 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, - 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, - 15, 15, 1, 18, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1 - } ; - -static yyconst int yy_meta[19] = - { 0, - 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, - 1, 1, 1, 2, 3, 2, 1, 1 - } ; - -static yyconst short int yy_base[43] = - { 0, - 0, 0, 39, 49, 49, 49, 26, 16, 49, 30, - 20, 19, 49, 9, 22, 10, 9, 0, 29, 13, - 49, 23, 49, 24, 49, 0, 0, 49, 49, 49, - 49, 49, 13, 0, 49, 49, 49, 49, 41, 28, - 43, 45 - } ; - -static yyconst short int yy_def[43] = - { 0, - 38, 1, 38, 38, 38, 38, 38, 39, 38, 38, - 40, 40, 38, 38, 38, 38, 41, 42, 38, 38, - 38, 39, 38, 39, 38, 12, 12, 38, 38, 38, - 38, 38, 41, 42, 38, 38, 38, 0, 38, 38, - 38, 38 - } ; - -static yyconst short int yy_nxt[68] = - { 0, - 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, - 14, 15, 16, 17, 18, 18, 19, 20, 23, 28, - 29, 31, 32, 34, 34, 23, 37, 34, 34, 26, - 36, 35, 24, 30, 38, 27, 25, 21, 38, 24, - 24, 22, 22, 22, 33, 33, 34, 34, 3, 38, - 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, - 38, 38, 38, 38, 38, 38, 38 - } ; - -static yyconst short int yy_chk[68] = - { 0, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 8, 14, - 14, 16, 16, 17, 17, 22, 24, 33, 33, 40, - 20, 19, 8, 15, 12, 11, 10, 7, 3, 22, - 24, 39, 39, 39, 41, 41, 42, 42, 38, 38, - 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, - 38, 38, 38, 38, 38, 38, 38 - } ; - -static yy_state_type yy_last_accepting_state; -static char *yy_last_accepting_cpos; - -/* The intent behind this definition is that it'll catch - * any uses of REJECT which flex missed. - */ -#define REJECT reject_used_but_not_detected -#define yymore() yymore_used_but_not_detected -#define YY_MORE_ADJ 0 -#define YY_RESTORE_YY_MORE_OFFSET -char *yytext; -#line 1 "calclex.l" -#define INITIAL 0 -/* Lexical analyzer for calc program. - -Copyright 2000, 2001, 2002 Free Software Foundation, Inc. - -This file is part of the GNU MP Library. - -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 3 of the License, 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, see http://www.gnu.org/licenses/. */ - -#line 21 "calclex.l" -#include <string.h> -#include "calc-common.h" - - -#if WITH_READLINE -/* Let GNU flex use readline. See the calcread.c redefined input() for a - way that might work for a standard lex too. */ -#define YY_INPUT(buf,result,max_size) \ - result = calc_input (buf, max_size); -#endif - - -/* Non-zero when reading the second or subsequent line of an expression, - used to give a different prompt when using readline. */ -int calc_more_input = 0; - - -const struct calc_keywords_t calc_keywords[] = { - { "abs", ABS }, - { "bin", BIN }, - { "decimal", DECIMAL }, - { "fib", FIB }, - { "hex", HEX }, - { "help", HELP }, - { "gcd", GCD }, - { "kron", KRON }, - { "lcm", LCM }, - { "lucnum", LUCNUM }, - { "nextprime", NEXTPRIME }, - { "powm", POWM }, - { "quit", QUIT }, - { "root", ROOT }, - { "sqrt", SQRT }, - { NULL } -}; -#line 444 "calclex.c" - -/* Macros after this point can all be overridden by user definitions in - * section 1. - */ - -#ifndef YY_SKIP_YYWRAP -#ifdef __cplusplus -extern "C" int yywrap YY_PROTO(( void )); -#else -extern int yywrap YY_PROTO(( void )); -#endif -#endif - -#ifndef YY_NO_UNPUT -static void yyunput YY_PROTO(( int c, char *buf_ptr )); -#endif - -#ifndef yytext_ptr -static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int )); -#endif - -#ifdef YY_NEED_STRLEN -static int yy_flex_strlen YY_PROTO(( yyconst char * )); -#endif - -#ifndef YY_NO_INPUT -#ifdef __cplusplus -static int yyinput YY_PROTO(( void )); -#else -static int input YY_PROTO(( void )); -#endif -#endif - -#if YY_STACK_USED -static int yy_start_stack_ptr = 0; -static int yy_start_stack_depth = 0; -static int *yy_start_stack = 0; -#ifndef YY_NO_PUSH_STATE -static void yy_push_state YY_PROTO(( int new_state )); -#endif -#ifndef YY_NO_POP_STATE -static void yy_pop_state YY_PROTO(( void )); -#endif -#ifndef YY_NO_TOP_STATE -static int yy_top_state YY_PROTO(( void )); -#endif - -#else -#define YY_NO_PUSH_STATE 1 -#define YY_NO_POP_STATE 1 -#define YY_NO_TOP_STATE 1 -#endif - -#ifdef YY_MALLOC_DECL -YY_MALLOC_DECL -#else -#if __STDC__ -#ifndef __cplusplus -#include <stdlib.h> -#endif -#else -/* Just try to get by without declaring the routines. This will fail - * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int) - * or sizeof(void*) != sizeof(int). - */ -#endif -#endif - -/* Amount of stuff to slurp up with each read. */ -#ifndef YY_READ_BUF_SIZE -#define YY_READ_BUF_SIZE 8192 -#endif - -/* Copy whatever the last rule matched to the standard output. */ - -#ifndef ECHO -/* This used to be an fputs(), but since the string might contain NUL's, - * we now use fwrite(). - */ -#define ECHO (void) fwrite( yytext, yyleng, 1, yyout ) -#endif - -/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, - * is returned in "result". - */ -#ifndef YY_INPUT -#define YY_INPUT(buf,result,max_size) \ - if ( yy_current_buffer->yy_is_interactive ) \ - { \ - int c = '*', n; \ - for ( n = 0; n < max_size && \ - (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ - buf[n] = (char) c; \ - if ( c == '\n' ) \ - buf[n++] = (char) c; \ - if ( c == EOF && ferror( yyin ) ) \ - YY_FATAL_ERROR( "input in flex scanner failed" ); \ - result = n; \ - } \ - else \ - { \ - errno=0; \ - while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \ - { \ - if( errno != EINTR) \ - { \ - YY_FATAL_ERROR( "input in flex scanner failed" ); \ - break; \ - } \ - errno=0; \ - clearerr(yyin); \ - } \ - } -#endif - -/* No semi-colon after return; correct usage is to write "yyterminate();" - - * we don't want an extra ';' after the "return" because that will cause - * some compilers to complain about unreachable statements. - */ -#ifndef yyterminate -#define yyterminate() return YY_NULL -#endif - -/* Number of entries by which start-condition stack grows. */ -#ifndef YY_START_STACK_INCR -#define YY_START_STACK_INCR 25 -#endif - -/* Report a fatal error. */ -#ifndef YY_FATAL_ERROR -#define YY_FATAL_ERROR(msg) yy_fatal_error( msg ) -#endif - -/* Default declaration of generated scanner - a define so the user can - * easily add parameters. - */ -#ifndef YY_DECL -#define YY_DECL int yylex YY_PROTO(( void )) -#endif - -/* Code executed at the beginning of each rule, after yytext and yyleng - * have been set up. - */ -#ifndef YY_USER_ACTION -#define YY_USER_ACTION -#endif - -/* Code executed at the end of each rule. */ -#ifndef YY_BREAK -#define YY_BREAK break; -#endif - -#define YY_RULE_SETUP \ - YY_USER_ACTION - -YY_DECL - { - register yy_state_type yy_current_state; - register char *yy_cp, *yy_bp; - register int yy_act; - -#line 58 "calclex.l" - - -#line 609 "calclex.c" - - if ( yy_init ) - { - yy_init = 0; - -#ifdef YY_USER_INIT - YY_USER_INIT; -#endif - - if ( ! yy_start ) - yy_start = 1; /* first start state */ - - if ( ! yyin ) - yyin = stdin; - - if ( ! yyout ) - yyout = stdout; - - if ( ! yy_current_buffer ) - yy_current_buffer = - yy_create_buffer( yyin, YY_BUF_SIZE ); - - yy_load_buffer_state(); - } - - while ( 1 ) /* loops until end-of-file is reached */ - { - yy_cp = yy_c_buf_p; - - /* Support of yytext. */ - *yy_cp = yy_hold_char; - - /* yy_bp points to the position in yy_ch_buf of the start of - * the current run. - */ - yy_bp = yy_cp; - - yy_current_state = yy_start; -yy_match: - do - { - register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)]; - if ( yy_accept[yy_current_state] ) - { - yy_last_accepting_state = yy_current_state; - yy_last_accepting_cpos = yy_cp; - } - while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) - { - yy_current_state = (int) yy_def[yy_current_state]; - if ( yy_current_state >= 39 ) - yy_c = yy_meta[(unsigned int) yy_c]; - } - yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; - ++yy_cp; - } - while ( yy_base[yy_current_state] != 49 ); - -yy_find_action: - yy_act = yy_accept[yy_current_state]; - if ( yy_act == 0 ) - { /* have to back up */ - yy_cp = yy_last_accepting_cpos; - yy_current_state = yy_last_accepting_state; - yy_act = yy_accept[yy_current_state]; - } - - YY_DO_BEFORE_ACTION; - - -do_action: /* This label is used only to access EOF actions. */ - - - switch ( yy_act ) - { /* beginning of action switch */ - case 0: /* must back up */ - /* undo the effects of YY_DO_BEFORE_ACTION */ - *yy_cp = yy_hold_char; - yy_cp = yy_last_accepting_cpos; - yy_current_state = yy_last_accepting_state; - goto yy_find_action; - -case 1: -YY_RULE_SETUP -#line 60 "calclex.l" -{ /* white space is skipped */ } - YY_BREAK -case 2: -YY_RULE_SETUP -#line 62 "calclex.l" -{ /* semicolon or newline separates statements */ - calc_more_input = 0; - return EOS; } - YY_BREAK -case 3: -YY_RULE_SETUP -#line 65 "calclex.l" -{ /* escaped newlines are skipped */ } - YY_BREAK -case 4: -YY_RULE_SETUP -#line 68 "calclex.l" -{ - /* comment through to escaped newline is skipped */ } - YY_BREAK -case 5: -YY_RULE_SETUP -#line 70 "calclex.l" -{ /* comment through to newline is a separator */ - calc_more_input = 0; - return EOS; } - YY_BREAK -case 6: -YY_RULE_SETUP -#line 73 "calclex.l" -{ /* comment through to EOF skipped */ } - YY_BREAK -case 7: -YY_RULE_SETUP -#line 76 "calclex.l" -{ return yytext[0]; } - YY_BREAK -case 8: -YY_RULE_SETUP -#line 77 "calclex.l" -{ return LE; } - YY_BREAK -case 9: -YY_RULE_SETUP -#line 78 "calclex.l" -{ return GE; } - YY_BREAK -case 10: -YY_RULE_SETUP -#line 79 "calclex.l" -{ return EQ; } - YY_BREAK -case 11: -YY_RULE_SETUP -#line 80 "calclex.l" -{ return NE; } - YY_BREAK -case 12: -YY_RULE_SETUP -#line 81 "calclex.l" -{ return LSHIFT; } - YY_BREAK -case 13: -YY_RULE_SETUP -#line 82 "calclex.l" -{ return RSHIFT; } - YY_BREAK -case 14: -YY_RULE_SETUP -#line 83 "calclex.l" -{ return LAND; } - YY_BREAK -case 15: -YY_RULE_SETUP -#line 84 "calclex.l" -{ return LOR; } - YY_BREAK -case 16: -YY_RULE_SETUP -#line 86 "calclex.l" -{ - yylval.str = yytext; - return NUMBER; } - YY_BREAK -case 17: -YY_RULE_SETUP -#line 90 "calclex.l" -{ - int i; - - for (i = 0; calc_keywords[i].name != NULL; i++) - if (strcmp (yytext, calc_keywords[i].name) == 0) - return calc_keywords[i].value; - - if (yytext[0] >= 'a' && yytext[0] <= 'z' && yytext[1] == '\0') - { - yylval.var = yytext[0] - 'a'; - return VARIABLE; - } - - return BAD; -} - YY_BREAK -case 18: -YY_RULE_SETUP -#line 106 "calclex.l" -{ return BAD; } - YY_BREAK -case 19: -YY_RULE_SETUP -#line 108 "calclex.l" -ECHO; - YY_BREAK -#line 808 "calclex.c" -case YY_STATE_EOF(INITIAL): - yyterminate(); - - case YY_END_OF_BUFFER: - { - /* Amount of text matched not including the EOB char. */ - int yy_amount_of_matched_text = (int) (yy_cp - yytext_ptr) - 1; - - /* Undo the effects of YY_DO_BEFORE_ACTION. */ - *yy_cp = yy_hold_char; - YY_RESTORE_YY_MORE_OFFSET - - if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_NEW ) - { - /* We're scanning a new file or input source. It's - * possible that this happened because the user - * just pointed yyin at a new source and called - * yylex(). If so, then we have to assure - * consistency between yy_current_buffer and our - * globals. Here is the right place to do so, because - * this is the first action (other than possibly a - * back-up) that will match for the new input source. - */ - yy_n_chars = yy_current_buffer->yy_n_chars; - yy_current_buffer->yy_input_file = yyin; - yy_current_buffer->yy_buffer_status = YY_BUFFER_NORMAL; - } - - /* Note that here we test for yy_c_buf_p "<=" to the position - * of the first EOB in the buffer, since yy_c_buf_p will - * already have been incremented past the NUL character - * (since all states make transitions on EOB to the - * end-of-buffer state). Contrast this with the test - * in input(). - */ - if ( yy_c_buf_p <= &yy_current_buffer->yy_ch_buf[yy_n_chars] ) - { /* This was really a NUL. */ - yy_state_type yy_next_state; - - yy_c_buf_p = yytext_ptr + yy_amount_of_matched_text; - - yy_current_state = yy_get_previous_state(); - - /* Okay, we're now positioned to make the NUL - * transition. We couldn't have - * yy_get_previous_state() go ahead and do it - * for us because it doesn't know how to deal - * with the possibility of jamming (and we don't - * want to build jamming into it because then it - * will run more slowly). - */ - - yy_next_state = yy_try_NUL_trans( yy_current_state ); - - yy_bp = yytext_ptr + YY_MORE_ADJ; - - if ( yy_next_state ) - { - /* Consume the NUL. */ - yy_cp = ++yy_c_buf_p; - yy_current_state = yy_next_state; - goto yy_match; - } - - else - { - yy_cp = yy_c_buf_p; - goto yy_find_action; - } - } - - else switch ( yy_get_next_buffer() ) - { - case EOB_ACT_END_OF_FILE: - { - yy_did_buffer_switch_on_eof = 0; - - if ( yywrap() ) - { - /* Note: because we've taken care in - * yy_get_next_buffer() to have set up - * yytext, we can now set up - * yy_c_buf_p so that if some total - * hoser (like flex itself) wants to - * call the scanner after we return the - * YY_NULL, it'll still work - another - * YY_NULL will get returned. - */ - yy_c_buf_p = yytext_ptr + YY_MORE_ADJ; - - yy_act = YY_STATE_EOF(YY_START); - goto do_action; - } - - else - { - if ( ! yy_did_buffer_switch_on_eof ) - YY_NEW_FILE; - } - break; - } - - case EOB_ACT_CONTINUE_SCAN: - yy_c_buf_p = - yytext_ptr + yy_amount_of_matched_text; - - yy_current_state = yy_get_previous_state(); - - yy_cp = yy_c_buf_p; - yy_bp = yytext_ptr + YY_MORE_ADJ; - goto yy_match; - - case EOB_ACT_LAST_MATCH: - yy_c_buf_p = - &yy_current_buffer->yy_ch_buf[yy_n_chars]; - - yy_current_state = yy_get_previous_state(); - - yy_cp = yy_c_buf_p; - yy_bp = yytext_ptr + YY_MORE_ADJ; - goto yy_find_action; - } - break; - } - - default: - YY_FATAL_ERROR( - "fatal flex scanner internal error--no action found" ); - } /* end of action switch */ - } /* end of scanning one token */ - } /* end of yylex */ - - -/* yy_get_next_buffer - try to read in a new buffer - * - * Returns a code representing an action: - * EOB_ACT_LAST_MATCH - - * EOB_ACT_CONTINUE_SCAN - continue scanning from current position - * EOB_ACT_END_OF_FILE - end of file - */ - -static int yy_get_next_buffer() - { - register char *dest = yy_current_buffer->yy_ch_buf; - register char *source = yytext_ptr; - register int number_to_move, i; - int ret_val; - - if ( yy_c_buf_p > &yy_current_buffer->yy_ch_buf[yy_n_chars + 1] ) - YY_FATAL_ERROR( - "fatal flex scanner internal error--end of buffer missed" ); - - if ( yy_current_buffer->yy_fill_buffer == 0 ) - { /* Don't try to fill the buffer, so this is an EOF. */ - if ( yy_c_buf_p - yytext_ptr - YY_MORE_ADJ == 1 ) - { - /* We matched a single character, the EOB, so - * treat this as a final EOF. - */ - return EOB_ACT_END_OF_FILE; - } - - else - { - /* We matched some text prior to the EOB, first - * process it. - */ - return EOB_ACT_LAST_MATCH; - } - } - - /* Try to read more data. */ - - /* First move last chars to start of buffer. */ - number_to_move = (int) (yy_c_buf_p - yytext_ptr) - 1; - - for ( i = 0; i < number_to_move; ++i ) - *(dest++) = *(source++); - - if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_EOF_PENDING ) - /* don't do the read, it's not guaranteed to return an EOF, - * just force an EOF - */ - yy_current_buffer->yy_n_chars = yy_n_chars = 0; - - else - { - int num_to_read = - yy_current_buffer->yy_buf_size - number_to_move - 1; - - while ( num_to_read <= 0 ) - { /* Not enough room in the buffer - grow it. */ -#ifdef YY_USES_REJECT - YY_FATAL_ERROR( -"input buffer overflow, can't enlarge buffer because scanner uses REJECT" ); -#else - - /* just a shorter name for the current buffer */ - YY_BUFFER_STATE b = yy_current_buffer; - - int yy_c_buf_p_offset = - (int) (yy_c_buf_p - b->yy_ch_buf); - - if ( b->yy_is_our_buffer ) - { - int new_size = b->yy_buf_size * 2; - - if ( new_size <= 0 ) - b->yy_buf_size += b->yy_buf_size / 8; - else - b->yy_buf_size *= 2; - - b->yy_ch_buf = (char *) - /* Include room in for 2 EOB chars. */ - yy_flex_realloc( (void *) b->yy_ch_buf, - b->yy_buf_size + 2 ); - } - else - /* Can't grow it, we don't own it. */ - b->yy_ch_buf = 0; - - if ( ! b->yy_ch_buf ) - YY_FATAL_ERROR( - "fatal error - scanner input buffer overflow" ); - - yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset]; - - num_to_read = yy_current_buffer->yy_buf_size - - number_to_move - 1; -#endif - } - - if ( num_to_read > YY_READ_BUF_SIZE ) - num_to_read = YY_READ_BUF_SIZE; - - /* Read in more data. */ - YY_INPUT( (&yy_current_buffer->yy_ch_buf[number_to_move]), - yy_n_chars, num_to_read ); - - yy_current_buffer->yy_n_chars = yy_n_chars; - } - - if ( yy_n_chars == 0 ) - { - if ( number_to_move == YY_MORE_ADJ ) - { - ret_val = EOB_ACT_END_OF_FILE; - yyrestart( yyin ); - } - - else - { - ret_val = EOB_ACT_LAST_MATCH; - yy_current_buffer->yy_buffer_status = - YY_BUFFER_EOF_PENDING; - } - } - - else - ret_val = EOB_ACT_CONTINUE_SCAN; - - yy_n_chars += number_to_move; - yy_current_buffer->yy_ch_buf[yy_n_chars] = YY_END_OF_BUFFER_CHAR; - yy_current_buffer->yy_ch_buf[yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR; - - yytext_ptr = &yy_current_buffer->yy_ch_buf[0]; - - return ret_val; - } - - -/* yy_get_previous_state - get the state just before the EOB char was reached */ - -static yy_state_type yy_get_previous_state() - { - register yy_state_type yy_current_state; - register char *yy_cp; - - yy_current_state = yy_start; - - for ( yy_cp = yytext_ptr + YY_MORE_ADJ; yy_cp < yy_c_buf_p; ++yy_cp ) - { - register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); - if ( yy_accept[yy_current_state] ) - { - yy_last_accepting_state = yy_current_state; - yy_last_accepting_cpos = yy_cp; - } - while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) - { - yy_current_state = (int) yy_def[yy_current_state]; - if ( yy_current_state >= 39 ) - yy_c = yy_meta[(unsigned int) yy_c]; - } - yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; - } - - return yy_current_state; - } - - -/* yy_try_NUL_trans - try to make a transition on the NUL character - * - * synopsis - * next_state = yy_try_NUL_trans( current_state ); - */ - -#ifdef YY_USE_PROTOS -static yy_state_type yy_try_NUL_trans( yy_state_type yy_current_state ) -#else -static yy_state_type yy_try_NUL_trans( yy_current_state ) -yy_state_type yy_current_state; -#endif - { - register int yy_is_jam; - register char *yy_cp = yy_c_buf_p; - - register YY_CHAR yy_c = 1; - if ( yy_accept[yy_current_state] ) - { - yy_last_accepting_state = yy_current_state; - yy_last_accepting_cpos = yy_cp; - } - while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) - { - yy_current_state = (int) yy_def[yy_current_state]; - if ( yy_current_state >= 39 ) - yy_c = yy_meta[(unsigned int) yy_c]; - } - yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; - yy_is_jam = (yy_current_state == 38); - - return yy_is_jam ? 0 : yy_current_state; - } - - -#ifndef YY_NO_UNPUT -#ifdef YY_USE_PROTOS -static void yyunput( int c, register char *yy_bp ) -#else -static void yyunput( c, yy_bp ) -int c; -register char *yy_bp; -#endif - { - register char *yy_cp = yy_c_buf_p; - - /* undo effects of setting up yytext */ - *yy_cp = yy_hold_char; - - if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 ) - { /* need to shift things up to make room */ - /* +2 for EOB chars. */ - register int number_to_move = yy_n_chars + 2; - register char *dest = &yy_current_buffer->yy_ch_buf[ - yy_current_buffer->yy_buf_size + 2]; - register char *source = - &yy_current_buffer->yy_ch_buf[number_to_move]; - - while ( source > yy_current_buffer->yy_ch_buf ) - *--dest = *--source; - - yy_cp += (int) (dest - source); - yy_bp += (int) (dest - source); - yy_current_buffer->yy_n_chars = - yy_n_chars = yy_current_buffer->yy_buf_size; - - if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 ) - YY_FATAL_ERROR( "flex scanner push-back overflow" ); - } - - *--yy_cp = (char) c; - - - yytext_ptr = yy_bp; - yy_hold_char = *yy_cp; - yy_c_buf_p = yy_cp; - } -#endif /* ifndef YY_NO_UNPUT */ - - -#ifdef __cplusplus -static int yyinput() -#else -static int input() -#endif - { - int c; - - *yy_c_buf_p = yy_hold_char; - - if ( *yy_c_buf_p == YY_END_OF_BUFFER_CHAR ) - { - /* yy_c_buf_p now points to the character we want to return. - * If this occurs *before* the EOB characters, then it's a - * valid NUL; if not, then we've hit the end of the buffer. - */ - if ( yy_c_buf_p < &yy_current_buffer->yy_ch_buf[yy_n_chars] ) - /* This was really a NUL. */ - *yy_c_buf_p = '\0'; - - else - { /* need more input */ - int offset = yy_c_buf_p - yytext_ptr; - ++yy_c_buf_p; - - switch ( yy_get_next_buffer() ) - { - case EOB_ACT_LAST_MATCH: - /* This happens because yy_g_n_b() - * sees that we've accumulated a - * token and flags that we need to - * try matching the token before - * proceeding. But for input(), - * there's no matching to consider. - * So convert the EOB_ACT_LAST_MATCH - * to EOB_ACT_END_OF_FILE. - */ - - /* Reset buffer status. */ - yyrestart( yyin ); - - /* fall through */ - - case EOB_ACT_END_OF_FILE: - { - if ( yywrap() ) - return EOF; - - if ( ! yy_did_buffer_switch_on_eof ) - YY_NEW_FILE; -#ifdef __cplusplus - return yyinput(); -#else - return input(); -#endif - } - - case EOB_ACT_CONTINUE_SCAN: - yy_c_buf_p = yytext_ptr + offset; - break; - } - } - } - - c = *(unsigned char *) yy_c_buf_p; /* cast for 8-bit char's */ - *yy_c_buf_p = '\0'; /* preserve yytext */ - yy_hold_char = *++yy_c_buf_p; - - - return c; - } - - -#ifdef YY_USE_PROTOS -void yyrestart( FILE *input_file ) -#else -void yyrestart( input_file ) -FILE *input_file; -#endif - { - if ( ! yy_current_buffer ) - yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); - - yy_init_buffer( yy_current_buffer, input_file ); - yy_load_buffer_state(); - } - - -#ifdef YY_USE_PROTOS -void yy_switch_to_buffer( YY_BUFFER_STATE new_buffer ) -#else -void yy_switch_to_buffer( new_buffer ) -YY_BUFFER_STATE new_buffer; -#endif - { - if ( yy_current_buffer == new_buffer ) - return; - - if ( yy_current_buffer ) - { - /* Flush out information for old buffer. */ - *yy_c_buf_p = yy_hold_char; - yy_current_buffer->yy_buf_pos = yy_c_buf_p; - yy_current_buffer->yy_n_chars = yy_n_chars; - } - - yy_current_buffer = new_buffer; - yy_load_buffer_state(); - - /* We don't actually know whether we did this switch during - * EOF (yywrap()) processing, but the only time this flag - * is looked at is after yywrap() is called, so it's safe - * to go ahead and always set it. - */ - yy_did_buffer_switch_on_eof = 1; - } - - -#ifdef YY_USE_PROTOS -void yy_load_buffer_state( void ) -#else -void yy_load_buffer_state() -#endif - { - yy_n_chars = yy_current_buffer->yy_n_chars; - yytext_ptr = yy_c_buf_p = yy_current_buffer->yy_buf_pos; - yyin = yy_current_buffer->yy_input_file; - yy_hold_char = *yy_c_buf_p; - } - - -#ifdef YY_USE_PROTOS -YY_BUFFER_STATE yy_create_buffer( FILE *file, int size ) -#else -YY_BUFFER_STATE yy_create_buffer( file, size ) -FILE *file; -int size; -#endif - { - YY_BUFFER_STATE b; - - b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) ); - if ( ! b ) - YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); - - b->yy_buf_size = size; - - /* yy_ch_buf has to be 2 characters longer than the size given because - * we need to put in 2 end-of-buffer characters. - */ - b->yy_ch_buf = (char *) yy_flex_alloc( b->yy_buf_size + 2 ); - if ( ! b->yy_ch_buf ) - YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); - - b->yy_is_our_buffer = 1; - - yy_init_buffer( b, file ); - - return b; - } - - -#ifdef YY_USE_PROTOS -void yy_delete_buffer( YY_BUFFER_STATE b ) -#else -void yy_delete_buffer( b ) -YY_BUFFER_STATE b; -#endif - { - if ( ! b ) - return; - - if ( b == yy_current_buffer ) - yy_current_buffer = (YY_BUFFER_STATE) 0; - - if ( b->yy_is_our_buffer ) - yy_flex_free( (void *) b->yy_ch_buf ); - - yy_flex_free( (void *) b ); - } - - -#ifndef _WIN32 -#include <unistd.h> -#else -#ifndef YY_ALWAYS_INTERACTIVE -#ifndef YY_NEVER_INTERACTIVE -extern int isatty YY_PROTO(( int )); -#endif -#endif -#endif - -#ifdef YY_USE_PROTOS -void yy_init_buffer( YY_BUFFER_STATE b, FILE *file ) -#else -void yy_init_buffer( b, file ) -YY_BUFFER_STATE b; -FILE *file; -#endif - - - { - yy_flush_buffer( b ); - - b->yy_input_file = file; - b->yy_fill_buffer = 1; - -#if YY_ALWAYS_INTERACTIVE - b->yy_is_interactive = 1; -#else -#if YY_NEVER_INTERACTIVE - b->yy_is_interactive = 0; -#else - b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; -#endif -#endif - } - - -#ifdef YY_USE_PROTOS -void yy_flush_buffer( YY_BUFFER_STATE b ) -#else -void yy_flush_buffer( b ) -YY_BUFFER_STATE b; -#endif - - { - if ( ! b ) - return; - - b->yy_n_chars = 0; - - /* We always need two end-of-buffer characters. The first causes - * a transition to the end-of-buffer state. The second causes - * a jam in that state. - */ - b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; - b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; - - b->yy_buf_pos = &b->yy_ch_buf[0]; - - b->yy_at_bol = 1; - b->yy_buffer_status = YY_BUFFER_NEW; - - if ( b == yy_current_buffer ) - yy_load_buffer_state(); - } - - -#ifndef YY_NO_SCAN_BUFFER -#ifdef YY_USE_PROTOS -YY_BUFFER_STATE yy_scan_buffer( char *base, yy_size_t size ) -#else -YY_BUFFER_STATE yy_scan_buffer( base, size ) -char *base; -yy_size_t size; -#endif - { - YY_BUFFER_STATE b; - - if ( size < 2 || - base[size-2] != YY_END_OF_BUFFER_CHAR || - base[size-1] != YY_END_OF_BUFFER_CHAR ) - /* They forgot to leave room for the EOB's. */ - return 0; - - b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) ); - if ( ! b ) - YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); - - b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */ - b->yy_buf_pos = b->yy_ch_buf = base; - b->yy_is_our_buffer = 0; - b->yy_input_file = 0; - b->yy_n_chars = b->yy_buf_size; - b->yy_is_interactive = 0; - b->yy_at_bol = 1; - b->yy_fill_buffer = 0; - b->yy_buffer_status = YY_BUFFER_NEW; - - yy_switch_to_buffer( b ); - - return b; - } -#endif - - -#ifndef YY_NO_SCAN_STRING -#ifdef YY_USE_PROTOS -YY_BUFFER_STATE yy_scan_string( yyconst char *yy_str ) -#else -YY_BUFFER_STATE yy_scan_string( yy_str ) -yyconst char *yy_str; -#endif - { - int len; - for ( len = 0; yy_str[len]; ++len ) - ; - - return yy_scan_bytes( yy_str, len ); - } -#endif - - -#ifndef YY_NO_SCAN_BYTES -#ifdef YY_USE_PROTOS -YY_BUFFER_STATE yy_scan_bytes( yyconst char *bytes, int len ) -#else -YY_BUFFER_STATE yy_scan_bytes( bytes, len ) -yyconst char *bytes; -int len; -#endif - { - YY_BUFFER_STATE b; - char *buf; - yy_size_t n; - int i; - - /* Get memory for full buffer, including space for trailing EOB's. */ - n = len + 2; - buf = (char *) yy_flex_alloc( n ); - if ( ! buf ) - YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); - - for ( i = 0; i < len; ++i ) - buf[i] = bytes[i]; - - buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR; - - b = yy_scan_buffer( buf, n ); - if ( ! b ) - YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" ); - - /* It's okay to grow etc. this buffer, and we should throw it - * away when we're done. - */ - b->yy_is_our_buffer = 1; - - return b; - } -#endif - - -#ifndef YY_NO_PUSH_STATE -#ifdef YY_USE_PROTOS -static void yy_push_state( int new_state ) -#else -static void yy_push_state( new_state ) -int new_state; -#endif - { - if ( yy_start_stack_ptr >= yy_start_stack_depth ) - { - yy_size_t new_size; - - yy_start_stack_depth += YY_START_STACK_INCR; - new_size = yy_start_stack_depth * sizeof( int ); - - if ( ! yy_start_stack ) - yy_start_stack = (int *) yy_flex_alloc( new_size ); - - else - yy_start_stack = (int *) yy_flex_realloc( - (void *) yy_start_stack, new_size ); - - if ( ! yy_start_stack ) - YY_FATAL_ERROR( - "out of memory expanding start-condition stack" ); - } - - yy_start_stack[yy_start_stack_ptr++] = YY_START; - - BEGIN(new_state); - } -#endif - - -#ifndef YY_NO_POP_STATE -static void yy_pop_state() - { - if ( --yy_start_stack_ptr < 0 ) - YY_FATAL_ERROR( "start-condition stack underflow" ); - - BEGIN(yy_start_stack[yy_start_stack_ptr]); - } -#endif - - -#ifndef YY_NO_TOP_STATE -static int yy_top_state() - { - return yy_start_stack[yy_start_stack_ptr - 1]; - } -#endif - -#ifndef YY_EXIT_FAILURE -#define YY_EXIT_FAILURE 2 -#endif - -#ifdef YY_USE_PROTOS -static void yy_fatal_error( yyconst char msg[] ) -#else -static void yy_fatal_error( msg ) -char msg[]; -#endif - { - (void) fprintf( stderr, "%s\n", msg ); - exit( YY_EXIT_FAILURE ); - } - - - -/* Redefine yyless() so it works in section 3 code. */ - -#undef yyless -#define yyless(n) \ - do \ - { \ - /* Undo effects of setting up yytext. */ \ - yytext[yyleng] = yy_hold_char; \ - yy_c_buf_p = yytext + n; \ - yy_hold_char = *yy_c_buf_p; \ - *yy_c_buf_p = '\0'; \ - yyleng = n; \ - } \ - while ( 0 ) - - -/* Internal utility routines. */ - -#ifndef yytext_ptr -#ifdef YY_USE_PROTOS -static void yy_flex_strncpy( char *s1, yyconst char *s2, int n ) -#else -static void yy_flex_strncpy( s1, s2, n ) -char *s1; -yyconst char *s2; -int n; -#endif - { - register int i; - for ( i = 0; i < n; ++i ) - s1[i] = s2[i]; - } -#endif - -#ifdef YY_NEED_STRLEN -#ifdef YY_USE_PROTOS -static int yy_flex_strlen( yyconst char *s ) -#else -static int yy_flex_strlen( s ) -yyconst char *s; -#endif - { - register int n; - for ( n = 0; s[n]; ++n ) - ; - - return n; - } -#endif - - -#ifdef YY_USE_PROTOS -static void *yy_flex_alloc( yy_size_t size ) -#else -static void *yy_flex_alloc( size ) -yy_size_t size; -#endif - { - return (void *) malloc( size ); - } - -#ifdef YY_USE_PROTOS -static void *yy_flex_realloc( void *ptr, yy_size_t size ) -#else -static void *yy_flex_realloc( ptr, size ) -void *ptr; -yy_size_t size; -#endif - { - /* The cast to (char *) in the following accommodates both - * implementations that use char* generic pointers, and those - * that use void* generic pointers. It works with the latter - * because both ANSI C and C++ allow castless assignment from - * any pointer type to void*, and deal with argument conversions - * as though doing an assignment. - */ - return (void *) realloc( (char *) ptr, size ); - } - -#ifdef YY_USE_PROTOS -static void yy_flex_free( void *ptr ) -#else -static void yy_flex_free( ptr ) -void *ptr; -#endif - { - free( ptr ); - } - -#if YY_MAIN -int main() - { - yylex(); - return 0; - } -#endif -#line 108 "calclex.l" - - -int -yywrap () -{ - return 1; -} |