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freebsd-skq/contrib/awk/awktab.c
sheldonh 4e5281d00b Update vendor branch to gawk-3.0.6.
2000-08-15 10:02:07 +00:00

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118 KiB
C
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/* A Bison parser, made from ./awk.y
by GNU Bison version 1.25
*/
#define YYBISON 1 /* Identify Bison output. */
#define FUNC_CALL 258
#define NAME 259
#define REGEXP 260
#define ERROR 261
#define YNUMBER 262
#define YSTRING 263
#define RELOP 264
#define APPEND_OP 265
#define ASSIGNOP 266
#define MATCHOP 267
#define NEWLINE 268
#define CONCAT_OP 269
#define LEX_BEGIN 270
#define LEX_END 271
#define LEX_IF 272
#define LEX_ELSE 273
#define LEX_RETURN 274
#define LEX_DELETE 275
#define LEX_WHILE 276
#define LEX_DO 277
#define LEX_FOR 278
#define LEX_BREAK 279
#define LEX_CONTINUE 280
#define LEX_PRINT 281
#define LEX_PRINTF 282
#define LEX_NEXT 283
#define LEX_EXIT 284
#define LEX_FUNCTION 285
#define LEX_GETLINE 286
#define LEX_NEXTFILE 287
#define LEX_IN 288
#define LEX_AND 289
#define LEX_OR 290
#define INCREMENT 291
#define DECREMENT 292
#define LEX_BUILTIN 293
#define LEX_LENGTH 294
#define UNARY 295
#line 26 "./awk.y"
#ifdef DEBUG
#define YYDEBUG 12
#endif
#include "awk.h"
#define CAN_FREE TRUE
#define DONT_FREE FALSE
#if defined(HAVE_STDARG_H) && defined(__STDC__) && __STDC__
static void yyerror(const char *m, ...) ;
#else
static void yyerror(); /* va_alist */
#endif
static char *get_src_buf P((void));
static int yylex P((void));
static NODE *node_common P((NODETYPE op));
static NODE *snode P((NODE *subn, NODETYPE op, int sindex));
static NODE *mkrangenode P((NODE *cpair));
static NODE *make_for_loop P((NODE *init, NODE *cond, NODE *incr));
static NODE *append_right P((NODE *list, NODE *new));
static void func_install P((NODE *params, NODE *def));
static void pop_var P((NODE *np, int freeit));
static void pop_params P((NODE *params));
static NODE *make_param P((char *name));
static NODE *mk_rexp P((NODE *exp));
static int dup_parms P((NODE *func));
static void param_sanity P((NODE *arglist));
static int isnoeffect P((NODETYPE t));
static int isassignable P((NODE *n));
enum defref { FUNC_DEFINE, FUNC_USE };
static void func_use P((char *name, enum defref how));
static void check_funcs P((void));
static int want_assign; /* lexical scanning kludge */
static int want_regexp; /* lexical scanning kludge */
static int can_return; /* lexical scanning kludge */
static int io_allowed = TRUE; /* lexical scanning kludge */
static char *lexptr; /* pointer to next char during parsing */
static char *lexend;
static char *lexptr_begin; /* keep track of where we were for error msgs */
static char *lexeme; /* beginning of lexeme for debugging */
static char *thisline = NULL;
#define YYDEBUG_LEXER_TEXT (lexeme)
static int param_counter;
static char *tokstart = NULL;
static char *tok = NULL;
static char *tokend;
#define HASHSIZE 1021 /* this constant only used here */
NODE *variables[HASHSIZE];
extern char *source;
extern int sourceline;
extern struct src *srcfiles;
extern int numfiles;
extern int errcount;
extern NODE *begin_block;
extern NODE *end_block;
#line 89 "./awk.y"
typedef union {
long lval;
AWKNUM fval;
NODE *nodeval;
NODETYPE nodetypeval;
char *sval;
NODE *(*ptrval)();
} YYSTYPE;
#include <stdio.h>
#ifndef __cplusplus
#ifndef __STDC__
#define const
#endif
#endif
#define YYFINAL 312
#define YYFLAG -32768
#define YYNTBASE 62
#define YYTRANSLATE(x) ((unsigned)(x) <= 295 ? yytranslate[x] : 107)
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, 51, 2, 2, 54, 50, 2, 2, 55,
56, 48, 46, 42, 47, 2, 49, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 41, 61, 43,
2, 44, 40, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
57, 2, 58, 53, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 59, 45, 60, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 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, 2, 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, 31, 32, 33, 34, 35,
36, 37, 38, 39, 52
};
#if YYDEBUG != 0
static const short yyprhs[] = { 0,
0, 4, 6, 9, 11, 14, 15, 16, 20, 21,
25, 28, 31, 34, 36, 39, 42, 44, 46, 48,
50, 52, 53, 61, 66, 71, 73, 77, 78, 83,
89, 94, 96, 99, 101, 104, 106, 109, 112, 115,
119, 121, 128, 137, 146, 157, 167, 170, 173, 180,
185, 189, 192, 196, 197, 202, 209, 213, 216, 218,
220, 227, 237, 239, 242, 243, 245, 246, 249, 250,
253, 256, 259, 260, 262, 264, 268, 270, 273, 277,
278, 280, 281, 283, 285, 289, 291, 294, 298, 302,
303, 305, 307, 311, 313, 316, 320, 324, 325, 330,
336, 341, 345, 349, 353, 357, 359, 362, 366, 370,
374, 378, 384, 386, 389, 390, 395, 399, 403, 407,
409, 412, 416, 420, 424, 430, 432, 435, 437, 441,
445, 449, 453, 457, 461, 464, 467, 470, 474, 479,
484, 486, 491, 493, 496, 499, 501, 503, 506, 509,
510, 512, 514, 519, 522, 525, 528, 530, 531, 533,
535
};
static const short yyrhs[] = { 83,
63, 83, 0, 64, 0, 63, 64, 0, 1, 0,
63, 1, 0, 0, 0, 15, 65, 75, 0, 0,
16, 66, 75, 0, 15, 77, 0, 16, 77, 0,
72, 75, 0, 75, 0, 72, 77, 0, 69, 71,
0, 4, 0, 3, 0, 68, 0, 38, 0, 39,
0, 0, 30, 70, 67, 55, 86, 103, 83, 0,
101, 76, 102, 104, 0, 101, 102, 104, 83, 0,
93, 0, 93, 42, 93, 0, 0, 49, 74, 5,
49, 0, 101, 76, 102, 104, 83, 0, 101, 102,
104, 83, 0, 78, 0, 76, 78, 0, 1, 0,
76, 1, 0, 82, 0, 105, 83, 0, 105, 83,
0, 101, 102, 0, 101, 76, 102, 0, 81, 0,
21, 55, 93, 103, 83, 78, 0, 22, 83, 78,
21, 55, 93, 103, 83, 0, 23, 55, 4, 33,
4, 103, 83, 78, 0, 23, 55, 88, 105, 93,
105, 88, 103, 83, 78, 0, 23, 55, 88, 105,
105, 88, 103, 83, 78, 0, 24, 77, 0, 25,
77, 0, 80, 55, 92, 103, 85, 77, 0, 80,
89, 85, 77, 0, 28, 88, 77, 0, 32, 77,
0, 29, 88, 77, 0, 0, 19, 79, 88, 77,
0, 20, 4, 57, 92, 58, 77, 0, 20, 4,
77, 0, 93, 77, 0, 26, 0, 27, 0, 17,
55, 93, 103, 83, 78, 0, 17, 55, 93, 103,
83, 78, 18, 83, 78, 0, 13, 0, 82, 13,
0, 0, 82, 0, 0, 43, 97, 0, 0, 44,
93, 0, 10, 93, 0, 45, 93, 0, 0, 87,
0, 4, 0, 87, 106, 4, 0, 1, 0, 87,
1, 0, 87, 106, 1, 0, 0, 93, 0, 0,
90, 0, 95, 0, 90, 106, 95, 0, 1, 0,
90, 1, 0, 90, 1, 95, 0, 90, 106, 1,
0, 0, 92, 0, 93, 0, 92, 106, 93, 0,
1, 0, 92, 1, 0, 92, 1, 93, 0, 92,
106, 1, 0, 0, 100, 11, 94, 93, 0, 55,
92, 103, 33, 4, 0, 93, 45, 31, 99, 0,
31, 99, 84, 0, 93, 34, 93, 0, 93, 35,
93, 0, 93, 12, 93, 0, 73, 0, 51, 73,
0, 93, 33, 4, 0, 93, 9, 93, 0, 93,
43, 93, 0, 93, 44, 93, 0, 93, 40, 93,
41, 93, 0, 97, 0, 93, 97, 0, 0, 100,
11, 96, 95, 0, 95, 34, 95, 0, 95, 35,
95, 0, 31, 99, 84, 0, 73, 0, 51, 73,
0, 95, 12, 95, 0, 95, 33, 4, 0, 95,
9, 95, 0, 95, 40, 95, 41, 95, 0, 97,
0, 95, 97, 0, 98, 0, 97, 53, 97, 0,
97, 48, 97, 0, 97, 49, 97, 0, 97, 50,
97, 0, 97, 46, 97, 0, 97, 47, 97, 0,
100, 36, 0, 100, 37, 0, 51, 97, 0, 55,
93, 103, 0, 38, 55, 91, 103, 0, 39, 55,
91, 103, 0, 39, 0, 3, 55, 91, 103, 0,
100, 0, 36, 100, 0, 37, 100, 0, 7, 0,
8, 0, 47, 97, 0, 46, 97, 0, 0, 100,
0, 4, 0, 4, 57, 92, 58, 0, 54, 98,
0, 59, 83, 0, 60, 83, 0, 56, 0, 0,
105, 0, 61, 0, 42, 83, 0
};
#endif
#if YYDEBUG != 0
static const short yyrline[] = { 0,
150, 158, 166, 182, 183, 184, 188, 190, 204, 206,
220, 226, 232, 234, 236, 249, 258, 260, 262, 272,
273, 277, 281, 296, 301, 310, 312, 321, 323, 341,
343, 348, 354, 362, 364, 369, 370, 374, 376, 378,
380, 382, 384, 386, 413, 417, 422, 425, 428, 430,
450, 489, 508, 510, 515, 517, 519, 533, 538, 540,
545, 550, 557, 559, 563, 564, 568, 570, 575, 577,
579, 581, 586, 588, 593, 595, 597, 599, 601, 607,
609, 614, 616, 621, 623, 629, 631, 633, 635, 640,
642, 647, 649, 655, 657, 659, 661, 666, 669, 674,
676, 681, 687, 689, 691, 697, 707, 715, 717, 723,
725, 727, 729, 731, 736, 739, 740, 742, 744, 750,
752, 754, 756, 758, 760, 762, 764, 769, 771, 773,
775, 777, 779, 781, 783, 785, 790, 792, 794, 797,
799, 807, 814, 815, 817, 819, 821, 824, 832, 843,
845, 850, 852, 862, 867, 871, 875, 879, 880, 884,
887
};
#endif
#if YYDEBUG != 0 || defined (YYERROR_VERBOSE)
static const char * const yytname[] = { "$","error","$undefined.","FUNC_CALL",
"NAME","REGEXP","ERROR","YNUMBER","YSTRING","RELOP","APPEND_OP","ASSIGNOP","MATCHOP",
"NEWLINE","CONCAT_OP","LEX_BEGIN","LEX_END","LEX_IF","LEX_ELSE","LEX_RETURN",
"LEX_DELETE","LEX_WHILE","LEX_DO","LEX_FOR","LEX_BREAK","LEX_CONTINUE","LEX_PRINT",
"LEX_PRINTF","LEX_NEXT","LEX_EXIT","LEX_FUNCTION","LEX_GETLINE","LEX_NEXTFILE",
"LEX_IN","LEX_AND","LEX_OR","INCREMENT","DECREMENT","LEX_BUILTIN","LEX_LENGTH",
"'?'","':'","','","'<'","'>'","'|'","'+'","'-'","'*'","'/'","'%'","'!'","UNARY",
"'^'","'$'","'('","')'","'['","']'","'{'","'}'","';'","start","program","rule",
"@1","@2","func_name","lex_builtin","function_prologue","@3","function_body",
"pattern","regexp","@4","action","statements","statement_term","statement","@5",
"print","if_statement","nls","opt_nls","input_redir","output_redir","opt_param_list",
"param_list","opt_exp","opt_rexpression_list","rexpression_list","opt_expression_list",
"expression_list","exp","@6","rexp","@7","simp_exp","non_post_simp_exp","opt_variable",
"variable","l_brace","r_brace","r_paren","opt_semi","semi","comma", NULL
};
#endif
static const short yyr1[] = { 0,
62, 63, 63, 63, 63, 63, 65, 64, 66, 64,
64, 64, 64, 64, 64, 64, 67, 67, 67, 68,
68, 70, 69, 71, 71, 72, 72, 74, 73, 75,
75, 76, 76, 76, 76, 77, 77, 78, 78, 78,
78, 78, 78, 78, 78, 78, 78, 78, 78, 78,
78, 78, 78, 79, 78, 78, 78, 78, 80, 80,
81, 81, 82, 82, 83, 83, 84, 84, 85, 85,
85, 85, 86, 86, 87, 87, 87, 87, 87, 88,
88, 89, 89, 90, 90, 90, 90, 90, 90, 91,
91, 92, 92, 92, 92, 92, 92, 94, 93, 93,
93, 93, 93, 93, 93, 93, 93, 93, 93, 93,
93, 93, 93, 93, 96, 95, 95, 95, 95, 95,
95, 95, 95, 95, 95, 95, 95, 97, 97, 97,
97, 97, 97, 97, 97, 97, 98, 98, 98, 98,
98, 98, 98, 98, 98, 98, 98, 98, 98, 99,
99, 100, 100, 100, 101, 102, 103, 104, 104, 105,
106
};
static const short yyr2[] = { 0,
3, 1, 2, 1, 2, 0, 0, 3, 0, 3,
2, 2, 2, 1, 2, 2, 1, 1, 1, 1,
1, 0, 7, 4, 4, 1, 3, 0, 4, 5,
4, 1, 2, 1, 2, 1, 2, 2, 2, 3,
1, 6, 8, 8, 10, 9, 2, 2, 6, 4,
3, 2, 3, 0, 4, 6, 3, 2, 1, 1,
6, 9, 1, 2, 0, 1, 0, 2, 0, 2,
2, 2, 0, 1, 1, 3, 1, 2, 3, 0,
1, 0, 1, 1, 3, 1, 2, 3, 3, 0,
1, 1, 3, 1, 2, 3, 3, 0, 4, 5,
4, 3, 3, 3, 3, 1, 2, 3, 3, 3,
3, 5, 1, 2, 0, 4, 3, 3, 3, 1,
2, 3, 3, 3, 5, 1, 2, 1, 3, 3,
3, 3, 3, 3, 2, 2, 2, 3, 4, 4,
1, 4, 1, 2, 2, 1, 1, 2, 2, 0,
1, 1, 4, 2, 2, 2, 1, 0, 1, 1,
2
};
static const short yydefact[] = { 65,
63, 66, 0, 64, 4, 0, 152, 146, 147, 7,
9, 22, 150, 0, 0, 0, 141, 0, 0, 28,
0, 0, 0, 65, 0, 2, 0, 0, 106, 14,
26, 113, 128, 143, 0, 0, 0, 160, 0, 11,
36, 65, 0, 12, 0, 67, 151, 144, 145, 0,
0, 0, 0, 149, 143, 148, 0, 107, 137, 154,
143, 94, 0, 92, 155, 5, 3, 1, 16, 0,
13, 15, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 114, 0, 0, 0, 0, 0, 0, 98,
135, 136, 34, 0, 54, 0, 0, 65, 0, 0,
0, 59, 60, 80, 80, 0, 65, 0, 32, 0,
41, 0, 0, 158, 65, 0, 0, 92, 0, 8,
37, 10, 18, 17, 20, 21, 0, 19, 0, 102,
0, 0, 0, 0, 95, 65, 157, 0, 0, 138,
0, 158, 109, 105, 108, 103, 104, 0, 27, 110,
111, 150, 133, 134, 130, 131, 132, 129, 0, 0,
80, 0, 0, 0, 80, 47, 48, 0, 81, 0,
52, 156, 35, 33, 158, 86, 150, 0, 0, 120,
69, 0, 84, 126, 143, 58, 0, 39, 65, 159,
38, 142, 153, 0, 68, 139, 140, 29, 96, 161,
0, 97, 93, 158, 65, 0, 101, 99, 0, 0,
0, 57, 0, 0, 152, 0, 51, 53, 65, 67,
121, 0, 0, 0, 0, 0, 87, 0, 0, 0,
0, 0, 0, 0, 127, 115, 40, 31, 77, 75,
0, 0, 100, 24, 25, 112, 65, 55, 0, 65,
0, 0, 0, 30, 119, 69, 71, 70, 72, 50,
88, 89, 85, 124, 122, 123, 117, 118, 0, 0,
65, 78, 0, 0, 0, 0, 0, 0, 0, 80,
0, 0, 116, 23, 79, 76, 61, 56, 42, 0,
65, 80, 0, 49, 125, 65, 65, 0, 0, 65,
0, 43, 44, 65, 0, 62, 0, 46, 45, 0,
0, 0
};
static const short yydefgoto[] = { 310,
25, 26, 39, 43, 127, 128, 27, 45, 69, 28,
29, 57, 30, 108, 40, 109, 161, 110, 111, 2,
3, 130, 226, 241, 242, 168, 181, 182, 116, 117,
112, 159, 183, 270, 32, 33, 46, 34, 113, 114,
140, 189, 42, 139
};
static const short yypact[] = { -6,
-32768, 0, 875,-32768,-32768, -40, -38,-32768,-32768, -7,
-7,-32768, 10, 10, 10, -31, -26, 1735, 1735,-32768,
1715, 1735, 1131, -6, 932,-32768, -24, 72,-32768,-32768,
1304, 205,-32768, 5, 709, 1110, 1131,-32768, -24,-32768,
0, -6, -24,-32768, 85, 3,-32768,-32768,-32768, 1110,
1110, 1735, 1620, 8, 106, 8, 81,-32768, 8,-32768,
-32768,-32768, 37, 1250,-32768,-32768,-32768,-32768,-32768, 709,
-32768,-32768, 1620, 1620, 90, 1620, 1620, 1620, 1620, 1620,
1620, 65, 205, 1735, 1735, 1735, 1735, 1735, 1735,-32768,
-32768,-32768,-32768, 50,-32768, 111, 70, -6, 93, -7,
-7,-32768,-32768, 1620, 1620, -7, -6, 758,-32768, 819,
-32768, 1040, 709, 100, -6, 99, 55, 1402, 9,-32768,
-32768,-32768,-32768,-32768,-32768,-32768, 109,-32768, 1735,-32768,
99, 99, 1250, 119, 1620, -6,-32768, 133, 1180,-32768,
758, 100, 1327, 794,-32768, 1515, 1451, 1353, 1402, 1327,
1327, 10, 125, 125, 8, 8, 8, 8, 1620, 1620,
1620, 42, 1620, 981, 1657,-32768,-32768, -7, 1402, -7,
-32768,-32768,-32768,-32768, 100,-32768, 10, 1715, 1131,-32768,
96, 39, 1538, 205, 117,-32768, 758,-32768, -6,-32768,
-32768,-32768,-32768, 7, 205,-32768,-32768,-32768, 1402,-32768,
166,-32768, 1402, 100, -6, 1620,-32768, 1402, 1250, -7,
1131,-32768, 1250, 151, -12, 100,-32768,-32768, -6, 3,
-32768, 37, 1620, 1620, 1620, -7, 1678, 1201, 1678, 1678,
181, 1678, 1678, 1678, 205,-32768,-32768,-32768,-32768,-32768,
99, 56,-32768,-32768,-32768, 1402, -6,-32768, 11, -6,
131, 183, 1061,-32768,-32768, 96, 1402, 1402, 1402,-32768,
1538,-32768, 1538, 635, 83,-32768, 1599, 1579, 1474, 1678,
-6,-32768, 103, 981, -7, 981, 1620, 99, 623, 1620,
-7, 1678, 1538,-32768,-32768,-32768, 170,-32768,-32768, 1250,
-6, 1620, 99,-32768, 1538, -6, -6, 981, 99, -6,
981,-32768,-32768, -6, 981,-32768, 981,-32768,-32768, 190,
191,-32768
};
static const short yypgoto[] = {-32768,
-32768, 167,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,
211,-32768, 107, -53, 315, -105,-32768,-32768,-32768, 199,
97, -22, -62,-32768,-32768, -103,-32768,-32768, 94, -14,
-3,-32768, -202,-32768, 318, 177, -134, 95, 124, -69,
407, -138, 420, -177
};
#define YYLAST 1790
static const short yytable[] = { 31,
142, 170, 174, 205, 228, 1, 1, 239, 63, 135,
240, 135, 4, 7, 36, 90, 141, 207, 37, 64,
252, 31, 119, 50, 261, 263, 264, 265, 51, 267,
268, 269, 118, 118, 24, 174, 219, 135, 175, 227,
91, 92, 220, 188, 37, 129, 118, 118, -83, 133,
136, -83, 136, 38, 1, 135, 272, 210, 214, 187,
89, 216, -73, 22, 273, 244, 193, 283, 275, 143,
144, 204, 146, 147, 148, 149, 150, 151, 136, 295,
136, 174, -83, -83, 1, 134, 7, 123, 124, 8,
9, 229, 137, 145,-32768, 152, 136, 136, 211, -83,
169, 169, 38, 285, 160, 223, 286, 47, 48, 49,
-91, -74, 55, 55, 162, 55, 61, 237, 14, 15,
65, 68, 125, 126, 163, 55, 35, 236, 18, 19,
24, 199, 38, 52, 71, 203, 22, 53, 121, 224,
225, 91, 92, 131, 132, 120, 55, 165, 35, 122,
70, 35, 91, 92, 137, 208, 209, 169, 55, 213,
38, 169, 35, 194, 222, 201, 35, 198, 287, 243,
289, 251, 86, 87, 88, 64, 293, 89, 55, 55,
55, 55, 55, 55, 266, 277, 278, 296, 299, 311,
312, 67, 303, 281, 164, 306, 249, 255, 60, 308,
0, 309, 246, 172, 185, 0, 55, 118, 41, 41,
0, 191, 55, 0, 0, 0, 0, 0, 0, 257,
258, 259, 0, 55, 0, 0, 41, 55, 0, 0,
0, 58, 200, 0, 0, 0, 0, 55, 55, 0,
55, 55, 55, 55, 55, 55, 47, 0, 0, 279,
84, 85, 86, 87, 88, 0, 0, 89, 0, 0,
0, 0, 0, 55, 0, 0, 0, 0, 0, 0,
0, 47, 55, 290, 0, 0, 169, 55, 0, 0,
0, 0, 0, 0, 0, 238, 0, 0, 169, 0,
0, 0, 0, 55, 0, 0, 0, 55, 41, 41,
0, 245, 55, 55, 41, 0, 0, 55, 0, 0,
41, 0, 0, 0, 0, 254, 0, 0, 0, 0,
180, 185, 185, 185, 185, 44, 185, 185, 185, 0,
0, 0, 0, 0, 0, 54, 56, 0, 59, 0,
55, 0, 72, 274, 0, 0, 276, 0, 83, 0,
0, 55, 55, 55, 0, 55, 0, 55, 55, 55,
41, 55, 55, 55, 185, 0, 41, 284, 41, 59,
0, 0, 0, 55, 0, 0, 185, 55, 0, 0,
0, 83, 0, 0, 55, 0, 0, 298, 221, 55,
0, 0, 301, 302, 0, 0, 305, 0, 0, 0,
307, 153, 154, 155, 156, 157, 158, 0, 41, 0,
0, 0, 0, 0, 166, 167, 0, 0, 0, 0,
171, 0, 0, 0, 41, 0, 186, 184, 0, 83,
0, 0, 0, 0, 0, 83, 0, 180, 180, 180,
180, 0, 180, 180, 180, 0, 195, 0, 0, 0,
83, 0, 0, 0, 115, 0, 0, 0, 0, 0,
83, 83, 0, 83, 83, 83, 83, 83, 83, 138,
0, 0, 0, 41, 0, 0, 212, 0, 0, 41,
180, 0, 217, 0, 218, 0, 83, 0, 0, 115,
0, 0, 180, 0, 0, 59, 0, 0, 0, 0,
235, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 83, 0, 0, 0,
83, 0, 192, 0, 248, 83, 83, 115, 0, 0,
83, 0, 115, 190, 0, 0, 0, 196, 197, 0,
260, 0, 0, 0, 184, 184, 184, 184, 0, 184,
184, 184, 0, 0, 0, 0, 0, 0, 0, 0,
115, 190, 0, 83, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 83, 83, 83, 0, 235, 0,
235, 235, 235, 115, 235, 235, 235, 184, 0, 288,
0, 0, 0, 0, 190, 294, 83, 0, 0, 184,
235, 0, 0, 0, 0, 0, 115, 83, 0, 0,
0, 0, 235, 0, 0, 247, 0, 0, 0, 250,
0, 0, 0, 190, 0, 6, 7, 0, 256, 8,
9, 73, 0, 0, 74, 253, 0, 0, 7, 0,
0, 8, 9,-32768, 0, 0, 0, 271, 0, 0,
0, 0, 0, 0, 0, 75, 76, 77, 14, 15,
16, 17, 78, 0, 0, 80, 81, 82, 18, 19,
14, 15, 280, 52, 0, 0, 22, 53, 0, 0,
18, 19, 0, 38, 291, 52, 0, 0, 22, 53,
0, 0, 0, 115, 0, 115, 297, 0, 292, 300,
0, 0, 0, 0, 0, 304, 0, 0, 0, 93,
0, 6, 7, 0, 0, 8, 9, 115, 0, 0,
115, 0, 0, 0, 115, 94, 115, 95, 96, 97,
98, 99, 100, 101, 102, 103, 104, 105, 0, 13,
106, 0, 0, 0, 14, 15, 16, 17, 0, 0,
0, 0, 0, 0, 18, 19, 0, 20, 173, 21,
6, 7, 22, 23, 8, 9, 0, 24, 107, 38,
0, 0, 0, 0, 94, 0, 95, 96, 97, 98,
99, 100, 101, 102, 103, 104, 105, 0, 13, 106,
0, 0, 0, 14, 15, 16, 17, 7, 0, 0,
8, 9, 73, 18, 19,-32768, 20, 0, 21, 0,
0, 22, 23, 0, 0, 0, 24, 107, 38, 176,
0, 6, 7, 0, 0, 8, 9, 0, -82, 14,
15, -82, 0, 0, 0, 0, 80, 81, 82, 18,
19, 0, 0, 0, 52, 0, 0, 22, 53, 177,
0, 0, 0, 0, 14, 15, 16, 17, 0, 0,
0, 0, -82, -82, 18, 19, 0, 20, 0, 178,
0, 0, 22, 179, -6, 5, 0, 6, 7, -82,
0, 8, 9, 0, 0, 0, 0, -6, 0, 10,
11, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 12, 13, 0, 0, 0, 0,
14, 15, 16, 17, 0, 0, 0, 0, 0, 0,
18, 19, 0, 20, 0, 21, 0, 0, 22, 23,
0, -65, 66, 24, 6, 7, 0, 0, 8, 9,
0, 0, 0, 0, 1, 0, 10, 11, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 12, 13, 0, 0, 0, 0, 14, 15, 16,
17, 0, 0, 0, 0, 0, 0, 18, 19, 0,
20, 0, 21, 6, 7, 22, 23, 8, 9, 0,
24, 0, 0, 0, 0, 0, 0, 94, 0, 95,
96, 97, 98, 99, 100, 101, 102, 103, 104, 105,
0, 13, 106, 0, 0, 0, 14, 15, 16, 17,
0, 0, 0, 0, 0, 0, 18, 19, 0, 20,
0, 21, 0, 0, 22, 23, 0, 0, 0, 24,
0, 38, 6, 7, 0, 0, 8, 9, 73, 0,
0, 74, 1, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 6, 7, 0, 0, 8, 9, 0,
0, 0, 75, 76, 77, 14, 15, 16, 17, 78,
0, 0, 80, 81, 82, 18, 19, 0, 0, 0,
52, 13, 0, 22, 53, 0, 14, 15, 16, 17,
38, 0, 0, 0, 0, 0, 18, 19, 0, 20,
62, 21, 6, 7, 22, 23, 8, 9, 0, 0,
0, 38, 0, 0, 0, 0, 0, 0, 0, 0,
0, 62, 0, 6, 7, 0, 0, 8, 9, 0,
13, 0, 0, 0, 0, 14, 15, 16, 17, 0,
0, 0, 0, 0, 0, 18, 19, 0, 20, 0,
21, 13, 0, 22, 23, -90, 14, 15, 16, 17,
0, 0, 0, 0, 0, 0, 18, 19, 0, 20,
202, 21, 6, 7, 22, 23, 8, 9, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 262, 0, 6, 7, 0, 0, 8, 9, 0,
13, 0, 0, 0, 0, 14, 15, 16, 17, 0,
0, 0, 0, 0, 0, 18, 19, 0, 20, 0,
21, 177, 0, 22, 23, 0, 14, 15, 16, 17,
0, 0, 0, 0, 0, 0, 18, 19, 0, 20,
0, 178, 6, 7, 22, 53, 8, 9, 73, 0,
0, 74, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 75, 76, 77, 14, 15, 16, 17, 78,
0, 0, 80, 81, 82, 18, 19, 0, 0, 0,
52, 0, 0, 22, 53, 137, 6, 7, 0, 0,
8, 9, 73, 0, 0, 74, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
7, 0, 0, 8, 9,-32768, 75, 76, 77, 14,
15, 16, 17, 78, 0, 79, 80, 81, 82, 18,
19, 0, 0, 0, 52, 6, 7, 22, 53, 8,
9, 73, 14, 15, 74, 0, 0, 0, 0,-32768,
-32768,-32768, 18, 19, 0, 0, 0, 52, 0, 0,
22, 53, 0, 0, 0, 75, 76, 77, 14, 15,
16, 17, 78, 206, 0, 80, 81, 82, 18, 19,
0, 0, 0, 52, 6, 7, 22, 53, 8, 9,
73, 0, 0, 74, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 75, 76, 77, 14, 15, 16,
17, 78, 0, 0, 80, 81, 82, 18, 19, 0,
0, 0, 52, 6, 7, 22, 53, 8, 9, 73,
0, 0, 74, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 6, 7, 0, 0,
8, 9, 229, 75, 76, 230, 14, 15, 16, 17,
0, 0, 0, 80, 81, 82, 18, 19, 0, 0,
0, 52, 0, 0, 22, 53, 231, 232, 233, 14,
15, 16, 17, 234, 282, 0, 0, 6, 7, 18,
19, 8, 9, 73, 52, 0, 74, 22, 53, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6, 7, 0, 0, 8, 9, 229, 75, 0, 230,
14, 15, 16, 17, 0, 0, 0, 80, 81, 82,
18, 19, 0, 0, 0, 52, 0, 0, 22, 53,
231, 232, 233, 14, 15, 16, 17, 234, 0, 0,
0, 6, 7, 18, 19, 8, 9, 229, 52, 0,
230, 22, 53, 0, 0, 0, 0, 0, 0, 0,
0, 6, 7, 0, 0, 8, 9, 229, 0, 0,
230, 231, 232, 0, 14, 15, 16, 17, 0, 0,
0, 0, 6, 7, 18, 19, 8, 9, 0, 52,
0, 231, 22, 53, 14, 15, 16, 17, 0, 0,
0, 0, 0, 0, 18, 19, 0, 0, 0, 52,
13, 0, 22, 53, 0, 14, 15, 16, 17, 6,
215, 0, 0, 8, 9, 18, 19, 0, 20, 0,
21, 0, 0, 22, 23, 0, 0, 0, 0, 0,
6, 7, 0, 0, 8, 9, 0, 13, 0, 0,
0, 0, 14, 15, 16, 17, 0, 0, 0, 0,
0, 0, 18, 19, 0, 20, 0, 21, 177, 0,
22, 23, 0, 14, 15, 16, 17, 6, 7, 0,
0, 8, 9, 18, 19, 0, 20, 0, 178, 0,
0, 22, 53, 0, 0, 0, 0, 6, 7, 0,
0, 8, 9, 0, 0, 0, 0, 0, 0, 0,
14, 15, 16, 17, 0, 0, 0, 0, 0, 0,
18, 19, 0, 20, 0, 52, 0, 0, 22, 53,
14, 15, 16, 17, 0, 0, 0, 0, 0, 0,
18, 19, 0, 0, 0, 52, 0, 0, 22, 53
};
static const short yycheck[] = { 3,
70, 105, 108, 142, 182, 13, 13, 1, 23, 1,
4, 1, 13, 4, 55, 11, 70, 152, 57, 23,
33, 25, 37, 55, 227, 228, 229, 230, 55, 232,
233, 234, 36, 37, 59, 141, 175, 1, 108, 1,
36, 37, 177, 113, 57, 43, 50, 51, 10, 53,
42, 13, 42, 61, 13, 1, 1, 161, 164, 113,
53, 165, 56, 54, 242, 204, 58, 270, 58, 73,
74, 141, 76, 77, 78, 79, 80, 81, 42, 282,
42, 187, 44, 45, 13, 5, 4, 3, 4, 7,
8, 9, 56, 4, 12, 31, 42, 42, 57, 61,
104, 105, 61, 1, 55, 10, 4, 13, 14, 15,
56, 56, 18, 19, 4, 21, 22, 187, 36, 37,
24, 25, 38, 39, 55, 31, 3, 11, 46, 47,
59, 135, 61, 51, 28, 139, 54, 55, 42, 44,
45, 36, 37, 50, 51, 39, 52, 55, 25, 43,
27, 28, 36, 37, 56, 159, 160, 161, 64, 163,
61, 165, 39, 55, 179, 33, 43, 49, 274, 4,
276, 21, 48, 49, 50, 179, 280, 53, 84, 85,
86, 87, 88, 89, 4, 55, 4, 18, 292, 0,
0, 25, 298, 256, 98, 301, 211, 220, 22, 305,
-1, 307, 206, 107, 110, -1, 112, 211, 10, 11,
-1, 115, 118, -1, -1, -1, -1, -1, -1, 223,
224, 225, -1, 129, -1, -1, 28, 133, -1, -1,
-1, 21, 136, -1, -1, -1, -1, 143, 144, -1,
146, 147, 148, 149, 150, 151, 152, -1, -1, 253,
46, 47, 48, 49, 50, -1, -1, 53, -1, -1,
-1, -1, -1, 169, -1, -1, -1, -1, -1, -1,
-1, 177, 178, 277, -1, -1, 280, 183, -1, -1,
-1, -1, -1, -1, -1, 189, -1, -1, 292, -1,
-1, -1, -1, 199, -1, -1, -1, 203, 100, 101,
-1, 205, 208, 209, 106, -1, -1, 213, -1, -1,
112, -1, -1, -1, -1, 219, -1, -1, -1, -1,
110, 227, 228, 229, 230, 11, 232, 233, 234, -1,
-1, -1, -1, -1, -1, 18, 19, -1, 21, -1,
246, -1, 28, 247, -1, -1, 250, -1, 31, -1,
-1, 257, 258, 259, -1, 261, -1, 263, 264, 265,
162, 267, 268, 269, 270, -1, 168, 271, 170, 52,
-1, -1, -1, 279, -1, -1, 282, 283, -1, -1,
-1, 64, -1, -1, 290, -1, -1, 291, 178, 295,
-1, -1, 296, 297, -1, -1, 300, -1, -1, -1,
304, 84, 85, 86, 87, 88, 89, -1, 210, -1,
-1, -1, -1, -1, 100, 101, -1, -1, -1, -1,
106, -1, -1, -1, 226, -1, 112, 110, -1, 112,
-1, -1, -1, -1, -1, 118, -1, 227, 228, 229,
230, -1, 232, 233, 234, -1, 129, -1, -1, -1,
133, -1, -1, -1, 35, -1, -1, -1, -1, -1,
143, 144, -1, 146, 147, 148, 149, 150, 151, 63,
-1, -1, -1, 275, -1, -1, 162, -1, -1, 281,
270, -1, 168, -1, 170, -1, 169, -1, -1, 70,
-1, -1, 282, -1, -1, 178, -1, -1, -1, -1,
183, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, 199, -1, -1, -1,
203, -1, 116, -1, 210, 208, 209, 108, -1, -1,
213, -1, 113, 114, -1, -1, -1, 131, 132, -1,
226, -1, -1, -1, 227, 228, 229, 230, -1, 232,
233, 234, -1, -1, -1, -1, -1, -1, -1, -1,
141, 142, -1, 246, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, 257, 258, 259, -1, 261, -1,
263, 264, 265, 164, 267, 268, 269, 270, -1, 275,
-1, -1, -1, -1, 175, 281, 279, -1, -1, 282,
283, -1, -1, -1, -1, -1, 187, 290, -1, -1,
-1, -1, 295, -1, -1, 209, -1, -1, -1, 213,
-1, -1, -1, 204, -1, 3, 4, -1, 222, 7,
8, 9, -1, -1, 12, 216, -1, -1, 4, -1,
-1, 7, 8, 9, -1, -1, -1, 241, -1, -1,
-1, -1, -1, -1, -1, 33, 34, 35, 36, 37,
38, 39, 40, -1, -1, 43, 44, 45, 46, 47,
36, 37, 253, 51, -1, -1, 54, 55, -1, -1,
46, 47, -1, 61, 278, 51, -1, -1, 54, 55,
-1, -1, -1, 274, -1, 276, 290, -1, 279, 293,
-1, -1, -1, -1, -1, 299, -1, -1, -1, 1,
-1, 3, 4, -1, -1, 7, 8, 298, -1, -1,
301, -1, -1, -1, 305, 17, 307, 19, 20, 21,
22, 23, 24, 25, 26, 27, 28, 29, -1, 31,
32, -1, -1, -1, 36, 37, 38, 39, -1, -1,
-1, -1, -1, -1, 46, 47, -1, 49, 1, 51,
3, 4, 54, 55, 7, 8, -1, 59, 60, 61,
-1, -1, -1, -1, 17, -1, 19, 20, 21, 22,
23, 24, 25, 26, 27, 28, 29, -1, 31, 32,
-1, -1, -1, 36, 37, 38, 39, 4, -1, -1,
7, 8, 9, 46, 47, 12, 49, -1, 51, -1,
-1, 54, 55, -1, -1, -1, 59, 60, 61, 1,
-1, 3, 4, -1, -1, 7, 8, -1, 10, 36,
37, 13, -1, -1, -1, -1, 43, 44, 45, 46,
47, -1, -1, -1, 51, -1, -1, 54, 55, 31,
-1, -1, -1, -1, 36, 37, 38, 39, -1, -1,
-1, -1, 44, 45, 46, 47, -1, 49, -1, 51,
-1, -1, 54, 55, 0, 1, -1, 3, 4, 61,
-1, 7, 8, -1, -1, -1, -1, 13, -1, 15,
16, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, 30, 31, -1, -1, -1, -1,
36, 37, 38, 39, -1, -1, -1, -1, -1, -1,
46, 47, -1, 49, -1, 51, -1, -1, 54, 55,
-1, 0, 1, 59, 3, 4, -1, -1, 7, 8,
-1, -1, -1, -1, 13, -1, 15, 16, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, 30, 31, -1, -1, -1, -1, 36, 37, 38,
39, -1, -1, -1, -1, -1, -1, 46, 47, -1,
49, -1, 51, 3, 4, 54, 55, 7, 8, -1,
59, -1, -1, -1, -1, -1, -1, 17, -1, 19,
20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
-1, 31, 32, -1, -1, -1, 36, 37, 38, 39,
-1, -1, -1, -1, -1, -1, 46, 47, -1, 49,
-1, 51, -1, -1, 54, 55, -1, -1, -1, 59,
-1, 61, 3, 4, -1, -1, 7, 8, 9, -1,
-1, 12, 13, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, 3, 4, -1, -1, 7, 8, -1,
-1, -1, 33, 34, 35, 36, 37, 38, 39, 40,
-1, -1, 43, 44, 45, 46, 47, -1, -1, -1,
51, 31, -1, 54, 55, -1, 36, 37, 38, 39,
61, -1, -1, -1, -1, -1, 46, 47, -1, 49,
1, 51, 3, 4, 54, 55, 7, 8, -1, -1,
-1, 61, -1, -1, -1, -1, -1, -1, -1, -1,
-1, 1, -1, 3, 4, -1, -1, 7, 8, -1,
31, -1, -1, -1, -1, 36, 37, 38, 39, -1,
-1, -1, -1, -1, -1, 46, 47, -1, 49, -1,
51, 31, -1, 54, 55, 56, 36, 37, 38, 39,
-1, -1, -1, -1, -1, -1, 46, 47, -1, 49,
1, 51, 3, 4, 54, 55, 7, 8, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, 1, -1, 3, 4, -1, -1, 7, 8, -1,
31, -1, -1, -1, -1, 36, 37, 38, 39, -1,
-1, -1, -1, -1, -1, 46, 47, -1, 49, -1,
51, 31, -1, 54, 55, -1, 36, 37, 38, 39,
-1, -1, -1, -1, -1, -1, 46, 47, -1, 49,
-1, 51, 3, 4, 54, 55, 7, 8, 9, -1,
-1, 12, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, 33, 34, 35, 36, 37, 38, 39, 40,
-1, -1, 43, 44, 45, 46, 47, -1, -1, -1,
51, -1, -1, 54, 55, 56, 3, 4, -1, -1,
7, 8, 9, -1, -1, 12, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
4, -1, -1, 7, 8, 9, 33, 34, 35, 36,
37, 38, 39, 40, -1, 42, 43, 44, 45, 46,
47, -1, -1, -1, 51, 3, 4, 54, 55, 7,
8, 9, 36, 37, 12, -1, -1, -1, -1, 43,
44, 45, 46, 47, -1, -1, -1, 51, -1, -1,
54, 55, -1, -1, -1, 33, 34, 35, 36, 37,
38, 39, 40, 41, -1, 43, 44, 45, 46, 47,
-1, -1, -1, 51, 3, 4, 54, 55, 7, 8,
9, -1, -1, 12, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, 33, 34, 35, 36, 37, 38,
39, 40, -1, -1, 43, 44, 45, 46, 47, -1,
-1, -1, 51, 3, 4, 54, 55, 7, 8, 9,
-1, -1, 12, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, 3, 4, -1, -1,
7, 8, 9, 33, 34, 12, 36, 37, 38, 39,
-1, -1, -1, 43, 44, 45, 46, 47, -1, -1,
-1, 51, -1, -1, 54, 55, 33, 34, 35, 36,
37, 38, 39, 40, 41, -1, -1, 3, 4, 46,
47, 7, 8, 9, 51, -1, 12, 54, 55, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
3, 4, -1, -1, 7, 8, 9, 33, -1, 12,
36, 37, 38, 39, -1, -1, -1, 43, 44, 45,
46, 47, -1, -1, -1, 51, -1, -1, 54, 55,
33, 34, 35, 36, 37, 38, 39, 40, -1, -1,
-1, 3, 4, 46, 47, 7, 8, 9, 51, -1,
12, 54, 55, -1, -1, -1, -1, -1, -1, -1,
-1, 3, 4, -1, -1, 7, 8, 9, -1, -1,
12, 33, 34, -1, 36, 37, 38, 39, -1, -1,
-1, -1, 3, 4, 46, 47, 7, 8, -1, 51,
-1, 33, 54, 55, 36, 37, 38, 39, -1, -1,
-1, -1, -1, -1, 46, 47, -1, -1, -1, 51,
31, -1, 54, 55, -1, 36, 37, 38, 39, 3,
4, -1, -1, 7, 8, 46, 47, -1, 49, -1,
51, -1, -1, 54, 55, -1, -1, -1, -1, -1,
3, 4, -1, -1, 7, 8, -1, 31, -1, -1,
-1, -1, 36, 37, 38, 39, -1, -1, -1, -1,
-1, -1, 46, 47, -1, 49, -1, 51, 31, -1,
54, 55, -1, 36, 37, 38, 39, 3, 4, -1,
-1, 7, 8, 46, 47, -1, 49, -1, 51, -1,
-1, 54, 55, -1, -1, -1, -1, 3, 4, -1,
-1, 7, 8, -1, -1, -1, -1, -1, -1, -1,
36, 37, 38, 39, -1, -1, -1, -1, -1, -1,
46, 47, -1, 49, -1, 51, -1, -1, 54, 55,
36, 37, 38, 39, -1, -1, -1, -1, -1, -1,
46, 47, -1, -1, -1, 51, -1, -1, 54, 55
};
/* -*-C-*- Note some compilers choke on comments on `#line' lines. */
#line 3 "/usr/share/bison.simple"
/* 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., 675 Mass Ave, Cambridge, MA 02139, 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. */
#ifndef alloca
#ifdef __GNUC__
#define alloca __builtin_alloca
#else /* not GNU C. */
#if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi)
#include <alloca.h>
#else /* not sparc */
#if defined (MSDOS) && !defined (__TURBOC__)
#include <malloc.h>
#else /* not MSDOS, or __TURBOC__ */
#if defined(_AIX)
#include <malloc.h>
#pragma alloca
#else /* not MSDOS, __TURBOC__, or _AIX */
#ifdef __hpux
#ifdef __cplusplus
extern "C" {
void *alloca (unsigned int);
};
#else /* not __cplusplus */
void *alloca ();
#endif /* not __cplusplus */
#endif /* __hpux */
#endif /* not _AIX */
#endif /* not MSDOS, or __TURBOC__ */
#endif /* not sparc. */
#endif /* not GNU C. */
#endif /* alloca not defined. */
/* 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. */
/* 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 return(0)
#define YYABORT return(1)
#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
#ifndef YYPARSE_RETURN_TYPE
#define YYPARSE_RETURN_TYPE int
#endif
/* Prevent warning if -Wstrict-prototypes. */
#ifdef __GNUC__
YYPARSE_RETURN_TYPE yyparse (void);
#endif
#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;
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, int count)
{
register char *f = from;
register char *t = to;
register int i = count;
while (i-- > 0)
*t++ = *f++;
}
#endif
#endif
#line 196 "/usr/share/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 */
YYPARSE_RETURN_TYPE
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;
#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");
return 2;
}
yystacksize *= 2;
if (yystacksize > YYMAXDEPTH)
yystacksize = YYMAXDEPTH;
yyss = (short *) alloca (yystacksize * sizeof (*yyssp));
__yy_memcpy ((char *)yyss, (char *)yyss1, size * sizeof (*yyssp));
yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp));
__yy_memcpy ((char *)yyvs, (char *)yyvs1, size * sizeof (*yyvsp));
#ifdef YYLSP_NEEDED
yyls = (YYLTYPE *) alloca (yystacksize * sizeof (*yylsp));
__yy_memcpy ((char *)yyls, (char *)yyls1, size * 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 1:
#line 151 "./awk.y"
{
expression_value = yyvsp[-1].nodeval;
check_funcs();
;
break;}
case 2:
#line 159 "./awk.y"
{
if (yyvsp[0].nodeval != NULL)
yyval.nodeval = yyvsp[0].nodeval;
else
yyval.nodeval = NULL;
yyerrok;
;
break;}
case 3:
#line 168 "./awk.y"
{
if (yyvsp[0].nodeval == NULL)
yyval.nodeval = yyvsp[-1].nodeval;
else if (yyvsp[-1].nodeval == NULL)
yyval.nodeval = yyvsp[0].nodeval;
else {
if (yyvsp[-1].nodeval->type != Node_rule_list)
yyvsp[-1].nodeval = node(yyvsp[-1].nodeval, Node_rule_list,
(NODE*) NULL);
yyval.nodeval = append_right(yyvsp[-1].nodeval,
node(yyvsp[0].nodeval, Node_rule_list, (NODE *) NULL));
}
yyerrok;
;
break;}
case 4:
#line 182 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 5:
#line 183 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 6:
#line 184 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 7:
#line 188 "./awk.y"
{ io_allowed = FALSE; ;
break;}
case 8:
#line 190 "./awk.y"
{
if (begin_block != NULL) {
if (begin_block->type != Node_rule_list)
begin_block = node(begin_block, Node_rule_list,
(NODE *) NULL);
(void) append_right(begin_block, node(
node((NODE *) NULL, Node_rule_node, yyvsp[0].nodeval),
Node_rule_list, (NODE *) NULL) );
} else
begin_block = node((NODE *) NULL, Node_rule_node, yyvsp[0].nodeval);
yyval.nodeval = NULL;
io_allowed = TRUE;
yyerrok;
;
break;}
case 9:
#line 204 "./awk.y"
{ io_allowed = FALSE; ;
break;}
case 10:
#line 206 "./awk.y"
{
if (end_block != NULL) {
if (end_block->type != Node_rule_list)
end_block = node(end_block, Node_rule_list,
(NODE *) NULL);
(void) append_right (end_block, node(
node((NODE *) NULL, Node_rule_node, yyvsp[0].nodeval),
Node_rule_list, (NODE *) NULL));
} else
end_block = node((NODE *) NULL, Node_rule_node, yyvsp[0].nodeval);
yyval.nodeval = NULL;
io_allowed = TRUE;
yyerrok;
;
break;}
case 11:
#line 221 "./awk.y"
{
warning("BEGIN blocks must have an action part");
errcount++;
yyerrok;
;
break;}
case 12:
#line 227 "./awk.y"
{
warning("END blocks must have an action part");
errcount++;
yyerrok;
;
break;}
case 13:
#line 233 "./awk.y"
{ yyval.nodeval = node(yyvsp[-1].nodeval, Node_rule_node, yyvsp[0].nodeval); yyerrok; ;
break;}
case 14:
#line 235 "./awk.y"
{ yyval.nodeval = node((NODE *) NULL, Node_rule_node, yyvsp[0].nodeval); yyerrok; ;
break;}
case 15:
#line 237 "./awk.y"
{
yyval.nodeval = node(yyvsp[-1].nodeval,
Node_rule_node,
node(node(node(make_number(0.0),
Node_field_spec,
(NODE *) NULL),
Node_expression_list,
(NODE *) NULL),
Node_K_print,
(NODE *) NULL));
yyerrok;
;
break;}
case 16:
#line 250 "./awk.y"
{
func_install(yyvsp[-1].nodeval, yyvsp[0].nodeval);
yyval.nodeval = NULL;
yyerrok;
;
break;}
case 17:
#line 259 "./awk.y"
{ yyval.sval = yyvsp[0].sval; ;
break;}
case 18:
#line 261 "./awk.y"
{ yyval.sval = yyvsp[0].sval; ;
break;}
case 19:
#line 263 "./awk.y"
{
yyerror("%s() is a built-in function, it cannot be redefined",
tokstart);
errcount++;
/* yyerrok; */
;
break;}
case 22:
#line 278 "./awk.y"
{
param_counter = 0;
;
break;}
case 23:
#line 282 "./awk.y"
{
NODE *t;
t = make_param(yyvsp[-4].sval);
t->flags |= FUNC;
yyval.nodeval = append_right(t, yyvsp[-2].nodeval);
can_return = TRUE;
/* check for duplicate parameter names */
if (dup_parms(yyval.nodeval))
errcount++;
;
break;}
case 24:
#line 297 "./awk.y"
{
yyval.nodeval = yyvsp[-2].nodeval;
can_return = FALSE;
;
break;}
case 25:
#line 302 "./awk.y"
{
yyval.nodeval = node((NODE *) NULL, Node_K_return, (NODE *) NULL);
can_return = FALSE;
;
break;}
case 26:
#line 311 "./awk.y"
{ yyval.nodeval = yyvsp[0].nodeval; ;
break;}
case 27:
#line 313 "./awk.y"
{ yyval.nodeval = mkrangenode(node(yyvsp[-2].nodeval, Node_cond_pair, yyvsp[0].nodeval)); ;
break;}
case 28:
#line 322 "./awk.y"
{ ++want_regexp; ;
break;}
case 29:
#line 324 "./awk.y"
{
NODE *n;
size_t len;
getnode(n);
n->type = Node_regex;
len = strlen(yyvsp[-1].sval);
n->re_exp = make_string(yyvsp[-1].sval, len);
n->re_reg = make_regexp(yyvsp[-1].sval, len, FALSE, TRUE);
n->re_text = NULL;
n->re_flags = CONST;
n->re_cnt = 1;
yyval.nodeval = n;
;
break;}
case 30:
#line 342 "./awk.y"
{ yyval.nodeval = yyvsp[-3].nodeval; ;
break;}
case 31:
#line 344 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 32:
#line 349 "./awk.y"
{
yyval.nodeval = yyvsp[0].nodeval;
if (do_lint && isnoeffect(yyval.nodeval->type))
warning("statement may have no effect");
;
break;}
case 33:
#line 355 "./awk.y"
{
if (yyvsp[-1].nodeval == NULL || yyvsp[-1].nodeval->type != Node_statement_list)
yyvsp[-1].nodeval = node(yyvsp[-1].nodeval, Node_statement_list, (NODE *) NULL);
yyval.nodeval = append_right(yyvsp[-1].nodeval,
node(yyvsp[0].nodeval, Node_statement_list, (NODE *) NULL));
yyerrok;
;
break;}
case 34:
#line 363 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 35:
#line 365 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 38:
#line 375 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 39:
#line 377 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 40:
#line 379 "./awk.y"
{ yyval.nodeval = yyvsp[-1].nodeval; ;
break;}
case 41:
#line 381 "./awk.y"
{ yyval.nodeval = yyvsp[0].nodeval; ;
break;}
case 42:
#line 383 "./awk.y"
{ yyval.nodeval = node(yyvsp[-3].nodeval, Node_K_while, yyvsp[0].nodeval); ;
break;}
case 43:
#line 385 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_K_do, yyvsp[-5].nodeval); ;
break;}
case 44:
#line 387 "./awk.y"
{
/*
* Efficiency hack. Recognize the special case of
*
* for (iggy in foo)
* delete foo[iggy]
*
* and treat it as if it were
*
* delete foo
*
* Check that the body is a `delete a[i]' statement,
* and that both the loop var and array names match.
*/
if (yyvsp[0].nodeval->type == Node_K_delete
&& yyvsp[0].nodeval->rnode != NULL
&& strcmp(yyvsp[-5].sval, yyvsp[0].nodeval->rnode->var_value->vname) == 0
&& strcmp(yyvsp[-3].sval, yyvsp[0].nodeval->lnode->vname) == 0) {
yyvsp[0].nodeval->type = Node_K_delete_loop;
yyval.nodeval = yyvsp[0].nodeval;
} else {
yyval.nodeval = node(yyvsp[0].nodeval, Node_K_arrayfor,
make_for_loop(variable(yyvsp[-5].sval, CAN_FREE, Node_var),
(NODE *) NULL, variable(yyvsp[-3].sval, CAN_FREE, Node_var_array)));
}
;
break;}
case 45:
#line 414 "./awk.y"
{
yyval.nodeval = node(yyvsp[0].nodeval, Node_K_for, (NODE *) make_for_loop(yyvsp[-7].nodeval, yyvsp[-5].nodeval, yyvsp[-3].nodeval));
;
break;}
case 46:
#line 418 "./awk.y"
{
yyval.nodeval = node(yyvsp[0].nodeval, Node_K_for,
(NODE *) make_for_loop(yyvsp[-6].nodeval, (NODE *) NULL, yyvsp[-3].nodeval));
;
break;}
case 47:
#line 424 "./awk.y"
{ yyval.nodeval = node((NODE *) NULL, Node_K_break, (NODE *) NULL); ;
break;}
case 48:
#line 427 "./awk.y"
{ yyval.nodeval = node((NODE *) NULL, Node_K_continue, (NODE *) NULL); ;
break;}
case 49:
#line 429 "./awk.y"
{ yyval.nodeval = node(yyvsp[-3].nodeval, yyvsp[-5].nodetypeval, yyvsp[-1].nodeval); ;
break;}
case 50:
#line 431 "./awk.y"
{
if (yyvsp[-3].nodetypeval == Node_K_print && yyvsp[-2].nodeval == NULL) {
static int warned = FALSE;
yyvsp[-2].nodeval = node(node(make_number(0.0),
Node_field_spec,
(NODE *) NULL),
Node_expression_list,
(NODE *) NULL);
if (do_lint && ! io_allowed && ! warned) {
warned = TRUE;
warning(
"plain `print' in BEGIN or END rule should probably be `print \"\"'");
}
}
yyval.nodeval = node(yyvsp[-2].nodeval, yyvsp[-3].nodetypeval, yyvsp[-1].nodeval);
;
break;}
case 51:
#line 451 "./awk.y"
{ NODETYPE type;
if (yyvsp[-1].nodeval) {
if (yyvsp[-1].nodeval == lookup("file")) {
static int warned = FALSE;
if (! warned) {
warned = TRUE;
warning("`next file' is obsolete; use `nextfile'");
}
if (do_lint)
warning("`next file' is a gawk extension");
if (do_traditional) {
/*
* can't use yyerror, since may have overshot
* the source line
*/
errcount++;
error("`next file' is a gawk extension");
}
if (! io_allowed) {
/* same thing */
errcount++;
error("`next file' used in BEGIN or END action");
}
type = Node_K_nextfile;
} else {
errcount++;
error("illegal expression after `next'");
type = Node_K_next; /* sanity */
}
} else {
if (! io_allowed)
yyerror("`next' used in BEGIN or END action");
type = Node_K_next;
}
yyval.nodeval = node((NODE *) NULL, type, (NODE *) NULL);
;
break;}
case 52:
#line 490 "./awk.y"
{
if (do_lint)
warning("`nextfile' is a gawk extension");
if (do_traditional) {
/*
* can't use yyerror, since may have overshot
* the source line
*/
errcount++;
error("`nextfile' is a gawk extension");
}
if (! io_allowed) {
/* same thing */
errcount++;
error("`nextfile' used in BEGIN or END action");
}
yyval.nodeval = node((NODE *) NULL, Node_K_nextfile, (NODE *) NULL);
;
break;}
case 53:
#line 509 "./awk.y"
{ yyval.nodeval = node(yyvsp[-1].nodeval, Node_K_exit, (NODE *) NULL); ;
break;}
case 54:
#line 511 "./awk.y"
{
if (! can_return)
yyerror("`return' used outside function context");
;
break;}
case 55:
#line 516 "./awk.y"
{ yyval.nodeval = node(yyvsp[-1].nodeval, Node_K_return, (NODE *) NULL); ;
break;}
case 56:
#line 518 "./awk.y"
{ yyval.nodeval = node(variable(yyvsp[-4].sval, CAN_FREE, Node_var_array), Node_K_delete, yyvsp[-2].nodeval); ;
break;}
case 57:
#line 520 "./awk.y"
{
if (do_lint)
warning("`delete array' is a gawk extension");
if (do_traditional) {
/*
* can't use yyerror, since may have overshot
* the source line
*/
errcount++;
error("`delete array' is a gawk extension");
}
yyval.nodeval = node(variable(yyvsp[-1].sval, CAN_FREE, Node_var_array), Node_K_delete, (NODE *) NULL);
;
break;}
case 58:
#line 534 "./awk.y"
{ yyval.nodeval = yyvsp[-1].nodeval; ;
break;}
case 59:
#line 539 "./awk.y"
{ yyval.nodetypeval = yyvsp[0].nodetypeval; ;
break;}
case 60:
#line 541 "./awk.y"
{ yyval.nodetypeval = yyvsp[0].nodetypeval; ;
break;}
case 61:
#line 546 "./awk.y"
{
yyval.nodeval = node(yyvsp[-3].nodeval, Node_K_if,
node(yyvsp[0].nodeval, Node_if_branches, (NODE *) NULL));
;
break;}
case 62:
#line 552 "./awk.y"
{ yyval.nodeval = node(yyvsp[-6].nodeval, Node_K_if,
node(yyvsp[-3].nodeval, Node_if_branches, yyvsp[0].nodeval)); ;
break;}
case 63:
#line 558 "./awk.y"
{ want_assign = FALSE; ;
break;}
case 67:
#line 569 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 68:
#line 571 "./awk.y"
{ yyval.nodeval = node(yyvsp[0].nodeval, Node_redirect_input, (NODE *) NULL); ;
break;}
case 69:
#line 576 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 70:
#line 578 "./awk.y"
{ yyval.nodeval = node(yyvsp[0].nodeval, Node_redirect_output, (NODE *) NULL); ;
break;}
case 71:
#line 580 "./awk.y"
{ yyval.nodeval = node(yyvsp[0].nodeval, Node_redirect_append, (NODE *) NULL); ;
break;}
case 72:
#line 582 "./awk.y"
{ yyval.nodeval = node(yyvsp[0].nodeval, Node_redirect_pipe, (NODE *) NULL); ;
break;}
case 73:
#line 587 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 74:
#line 589 "./awk.y"
{ yyval.nodeval = yyvsp[0].nodeval; ;
break;}
case 75:
#line 594 "./awk.y"
{ yyval.nodeval = make_param(yyvsp[0].sval); ;
break;}
case 76:
#line 596 "./awk.y"
{ yyval.nodeval = append_right(yyvsp[-2].nodeval, make_param(yyvsp[0].sval)); yyerrok; ;
break;}
case 77:
#line 598 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 78:
#line 600 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 79:
#line 602 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 80:
#line 608 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 81:
#line 610 "./awk.y"
{ yyval.nodeval = yyvsp[0].nodeval; ;
break;}
case 82:
#line 615 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 83:
#line 617 "./awk.y"
{ yyval.nodeval = yyvsp[0].nodeval; ;
break;}
case 84:
#line 622 "./awk.y"
{ yyval.nodeval = node(yyvsp[0].nodeval, Node_expression_list, (NODE *) NULL); ;
break;}
case 85:
#line 624 "./awk.y"
{
yyval.nodeval = append_right(yyvsp[-2].nodeval,
node(yyvsp[0].nodeval, Node_expression_list, (NODE *) NULL));
yyerrok;
;
break;}
case 86:
#line 630 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 87:
#line 632 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 88:
#line 634 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 89:
#line 636 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 90:
#line 641 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 91:
#line 643 "./awk.y"
{ yyval.nodeval = yyvsp[0].nodeval; ;
break;}
case 92:
#line 648 "./awk.y"
{ yyval.nodeval = node(yyvsp[0].nodeval, Node_expression_list, (NODE *) NULL); ;
break;}
case 93:
#line 650 "./awk.y"
{
yyval.nodeval = append_right(yyvsp[-2].nodeval,
node(yyvsp[0].nodeval, Node_expression_list, (NODE *) NULL));
yyerrok;
;
break;}
case 94:
#line 656 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 95:
#line 658 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 96:
#line 660 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 97:
#line 662 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 98:
#line 667 "./awk.y"
{ want_assign = FALSE; ;
break;}
case 99:
#line 669 "./awk.y"
{
if (do_lint && yyvsp[0].nodeval->type == Node_regex)
warning("Regular expression on left of assignment.");
yyval.nodeval = node(yyvsp[-3].nodeval, yyvsp[-2].nodetypeval, yyvsp[0].nodeval);
;
break;}
case 100:
#line 675 "./awk.y"
{ yyval.nodeval = node(variable(yyvsp[0].sval, CAN_FREE, Node_var_array), Node_in_array, yyvsp[-3].nodeval); ;
break;}
case 101:
#line 677 "./awk.y"
{
yyval.nodeval = node(yyvsp[0].nodeval, Node_K_getline,
node(yyvsp[-3].nodeval, Node_redirect_pipein, (NODE *) NULL));
;
break;}
case 102:
#line 682 "./awk.y"
{
if (do_lint && ! io_allowed && yyvsp[0].nodeval == NULL)
warning("non-redirected getline undefined inside BEGIN or END action");
yyval.nodeval = node(yyvsp[-1].nodeval, Node_K_getline, yyvsp[0].nodeval);
;
break;}
case 103:
#line 688 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_and, yyvsp[0].nodeval); ;
break;}
case 104:
#line 690 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_or, yyvsp[0].nodeval); ;
break;}
case 105:
#line 692 "./awk.y"
{
if (yyvsp[-2].nodeval->type == Node_regex)
warning("Regular expression on left of MATCH operator.");
yyval.nodeval = node(yyvsp[-2].nodeval, yyvsp[-1].nodetypeval, mk_rexp(yyvsp[0].nodeval));
;
break;}
case 106:
#line 698 "./awk.y"
{
yyval.nodeval = yyvsp[0].nodeval;
if (do_lint && tokstart[0] == '*') {
/* possible C comment */
int n = strlen(tokstart) - 1;
if (tokstart[n] == '*')
warning("regexp looks like a C comment, but is not");
}
;
break;}
case 107:
#line 708 "./awk.y"
{
yyval.nodeval = node(node(make_number(0.0),
Node_field_spec,
(NODE *) NULL),
Node_nomatch,
yyvsp[0].nodeval);
;
break;}
case 108:
#line 716 "./awk.y"
{ yyval.nodeval = node(variable(yyvsp[0].sval, CAN_FREE, Node_var_array), Node_in_array, yyvsp[-2].nodeval); ;
break;}
case 109:
#line 718 "./awk.y"
{
if (do_lint && yyvsp[0].nodeval->type == Node_regex)
warning("Regular expression on left of comparison.");
yyval.nodeval = node(yyvsp[-2].nodeval, yyvsp[-1].nodetypeval, yyvsp[0].nodeval);
;
break;}
case 110:
#line 724 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_less, yyvsp[0].nodeval); ;
break;}
case 111:
#line 726 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_greater, yyvsp[0].nodeval); ;
break;}
case 112:
#line 728 "./awk.y"
{ yyval.nodeval = node(yyvsp[-4].nodeval, Node_cond_exp, node(yyvsp[-2].nodeval, Node_if_branches, yyvsp[0].nodeval));;
break;}
case 113:
#line 730 "./awk.y"
{ yyval.nodeval = yyvsp[0].nodeval; ;
break;}
case 114:
#line 732 "./awk.y"
{ yyval.nodeval = node(yyvsp[-1].nodeval, Node_concat, yyvsp[0].nodeval); ;
break;}
case 115:
#line 737 "./awk.y"
{ want_assign = FALSE; ;
break;}
case 116:
#line 739 "./awk.y"
{ yyval.nodeval = node(yyvsp[-3].nodeval, yyvsp[-2].nodetypeval, yyvsp[0].nodeval); ;
break;}
case 117:
#line 741 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_and, yyvsp[0].nodeval); ;
break;}
case 118:
#line 743 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_or, yyvsp[0].nodeval); ;
break;}
case 119:
#line 745 "./awk.y"
{
if (do_lint && ! io_allowed && yyvsp[0].nodeval == NULL)
warning("non-redirected getline undefined inside BEGIN or END action");
yyval.nodeval = node(yyvsp[-1].nodeval, Node_K_getline, yyvsp[0].nodeval);
;
break;}
case 120:
#line 751 "./awk.y"
{ yyval.nodeval = yyvsp[0].nodeval; ;
break;}
case 121:
#line 753 "./awk.y"
{ yyval.nodeval = node((NODE *) NULL, Node_nomatch, yyvsp[0].nodeval); ;
break;}
case 122:
#line 755 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, yyvsp[-1].nodetypeval, mk_rexp(yyvsp[0].nodeval)); ;
break;}
case 123:
#line 757 "./awk.y"
{ yyval.nodeval = node(variable(yyvsp[0].sval, CAN_FREE, Node_var_array), Node_in_array, yyvsp[-2].nodeval); ;
break;}
case 124:
#line 759 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, yyvsp[-1].nodetypeval, yyvsp[0].nodeval); ;
break;}
case 125:
#line 761 "./awk.y"
{ yyval.nodeval = node(yyvsp[-4].nodeval, Node_cond_exp, node(yyvsp[-2].nodeval, Node_if_branches, yyvsp[0].nodeval));;
break;}
case 126:
#line 763 "./awk.y"
{ yyval.nodeval = yyvsp[0].nodeval; ;
break;}
case 127:
#line 765 "./awk.y"
{ yyval.nodeval = node(yyvsp[-1].nodeval, Node_concat, yyvsp[0].nodeval); ;
break;}
case 129:
#line 772 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_exp, yyvsp[0].nodeval); ;
break;}
case 130:
#line 774 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_times, yyvsp[0].nodeval); ;
break;}
case 131:
#line 776 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_quotient, yyvsp[0].nodeval); ;
break;}
case 132:
#line 778 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_mod, yyvsp[0].nodeval); ;
break;}
case 133:
#line 780 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_plus, yyvsp[0].nodeval); ;
break;}
case 134:
#line 782 "./awk.y"
{ yyval.nodeval = node(yyvsp[-2].nodeval, Node_minus, yyvsp[0].nodeval); ;
break;}
case 135:
#line 784 "./awk.y"
{ yyval.nodeval = node(yyvsp[-1].nodeval, Node_postincrement, (NODE *) NULL); ;
break;}
case 136:
#line 786 "./awk.y"
{ yyval.nodeval = node(yyvsp[-1].nodeval, Node_postdecrement, (NODE *) NULL); ;
break;}
case 137:
#line 791 "./awk.y"
{ yyval.nodeval = node(yyvsp[0].nodeval, Node_not, (NODE *) NULL); ;
break;}
case 138:
#line 793 "./awk.y"
{ yyval.nodeval = yyvsp[-1].nodeval; ;
break;}
case 139:
#line 796 "./awk.y"
{ yyval.nodeval = snode(yyvsp[-1].nodeval, Node_builtin, (int) yyvsp[-3].lval); ;
break;}
case 140:
#line 798 "./awk.y"
{ yyval.nodeval = snode(yyvsp[-1].nodeval, Node_builtin, (int) yyvsp[-3].lval); ;
break;}
case 141:
#line 800 "./awk.y"
{
if (do_lint)
warning("call of `length' without parentheses is not portable");
yyval.nodeval = snode((NODE *) NULL, Node_builtin, (int) yyvsp[0].lval);
if (do_posix)
warning("call of `length' without parentheses is deprecated by POSIX");
;
break;}
case 142:
#line 808 "./awk.y"
{
yyval.nodeval = node(yyvsp[-1].nodeval, Node_func_call, make_string(yyvsp[-3].sval, strlen(yyvsp[-3].sval)));
func_use(yyvsp[-3].sval, FUNC_USE);
param_sanity(yyvsp[-1].nodeval);
free(yyvsp[-3].sval);
;
break;}
case 144:
#line 816 "./awk.y"
{ yyval.nodeval = node(yyvsp[0].nodeval, Node_preincrement, (NODE *) NULL); ;
break;}
case 145:
#line 818 "./awk.y"
{ yyval.nodeval = node(yyvsp[0].nodeval, Node_predecrement, (NODE *) NULL); ;
break;}
case 146:
#line 820 "./awk.y"
{ yyval.nodeval = yyvsp[0].nodeval; ;
break;}
case 147:
#line 822 "./awk.y"
{ yyval.nodeval = yyvsp[0].nodeval; ;
break;}
case 148:
#line 825 "./awk.y"
{
if (yyvsp[0].nodeval->type == Node_val) {
yyvsp[0].nodeval->numbr = -(force_number(yyvsp[0].nodeval));
yyval.nodeval = yyvsp[0].nodeval;
} else
yyval.nodeval = node(yyvsp[0].nodeval, Node_unary_minus, (NODE *) NULL);
;
break;}
case 149:
#line 833 "./awk.y"
{
/*
* was: $$ = $2
* POSIX semantics: force a conversion to numeric type
*/
yyval.nodeval = node (make_number(0.0), Node_plus, yyvsp[0].nodeval);
;
break;}
case 150:
#line 844 "./awk.y"
{ yyval.nodeval = NULL; ;
break;}
case 151:
#line 846 "./awk.y"
{ yyval.nodeval = yyvsp[0].nodeval; ;
break;}
case 152:
#line 851 "./awk.y"
{ yyval.nodeval = variable(yyvsp[0].sval, CAN_FREE, Node_var); ;
break;}
case 153:
#line 853 "./awk.y"
{
if (yyvsp[-1].nodeval == NULL) {
fatal("invalid subscript expression");
} else if (yyvsp[-1].nodeval->rnode == NULL) {
yyval.nodeval = node(variable(yyvsp[-3].sval, CAN_FREE, Node_var_array), Node_subscript, yyvsp[-1].nodeval->lnode);
freenode(yyvsp[-1].nodeval);
} else
yyval.nodeval = node(variable(yyvsp[-3].sval, CAN_FREE, Node_var_array), Node_subscript, yyvsp[-1].nodeval);
;
break;}
case 154:
#line 863 "./awk.y"
{ yyval.nodeval = node(yyvsp[0].nodeval, Node_field_spec, (NODE *) NULL); ;
break;}
case 156:
#line 871 "./awk.y"
{ yyerrok; ;
break;}
case 157:
#line 875 "./awk.y"
{ yyerrok; ;
break;}
case 160:
#line 884 "./awk.y"
{ yyerrok; want_assign = FALSE; ;
break;}
case 161:
#line 887 "./awk.y"
{ yyerrok; ;
break;}
}
/* the action file gets copied in in place of this dollarsign */
#line 498 "/usr/share/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;
}
#line 890 "./awk.y"
struct token {
const char *operator; /* text to match */
NODETYPE value; /* node type */
int class; /* lexical class */
unsigned flags; /* # of args. allowed and compatability */
# define ARGS 0xFF /* 0, 1, 2, 3 args allowed (any combination */
# define A(n) (1<<(n))
# define VERSION 0xFF00 /* old awk is zero */
# define NOT_OLD 0x0100 /* feature not in old awk */
# define NOT_POSIX 0x0200 /* feature not in POSIX */
# define GAWKX 0x0400 /* gawk extension */
# define RESX 0x0800 /* Bell Labs Research extension */
NODE *(*ptr)(); /* function that implements this keyword */
};
/* Tokentab is sorted ascii ascending order, so it can be binary searched. */
/* Function pointers come from declarations in awk.h. */
static struct token tokentab[] = {
{"BEGIN", Node_illegal, LEX_BEGIN, 0, 0},
{"END", Node_illegal, LEX_END, 0, 0},
#ifdef ARRAYDEBUG
{"adump", Node_builtin, LEX_BUILTIN, GAWKX|A(1), do_adump},
#endif
#ifdef BITOPS
{"and", Node_builtin, LEX_BUILTIN, GAWKX|A(2), do_and},
#endif /* BITOPS */
{"atan2", Node_builtin, LEX_BUILTIN, NOT_OLD|A(2), do_atan2},
{"break", Node_K_break, LEX_BREAK, 0, 0},
{"close", Node_builtin, LEX_BUILTIN, NOT_OLD|A(1), do_close},
#ifdef BITOPS
{"compl", Node_builtin, LEX_BUILTIN, GAWKX|A(1), do_compl},
#endif /* BITOPS */
{"continue", Node_K_continue, LEX_CONTINUE, 0, 0},
{"cos", Node_builtin, LEX_BUILTIN, NOT_OLD|A(1), do_cos},
{"delete", Node_K_delete, LEX_DELETE, NOT_OLD, 0},
{"do", Node_K_do, LEX_DO, NOT_OLD, 0},
{"else", Node_illegal, LEX_ELSE, 0, 0},
{"exit", Node_K_exit, LEX_EXIT, 0, 0},
{"exp", Node_builtin, LEX_BUILTIN, A(1), do_exp},
{"fflush", Node_builtin, LEX_BUILTIN, RESX|A(0)|A(1), do_fflush},
{"for", Node_K_for, LEX_FOR, 0, 0},
{"func", Node_K_function, LEX_FUNCTION, NOT_POSIX|NOT_OLD, 0},
{"function", Node_K_function, LEX_FUNCTION, NOT_OLD, 0},
{"gensub", Node_builtin, LEX_BUILTIN, GAWKX|A(3)|A(4), do_gensub},
{"getline", Node_K_getline, LEX_GETLINE, NOT_OLD, 0},
{"gsub", Node_builtin, LEX_BUILTIN, NOT_OLD|A(2)|A(3), do_gsub},
{"if", Node_K_if, LEX_IF, 0, 0},
{"in", Node_illegal, LEX_IN, 0, 0},
{"index", Node_builtin, LEX_BUILTIN, A(2), do_index},
{"int", Node_builtin, LEX_BUILTIN, A(1), do_int},
{"length", Node_builtin, LEX_LENGTH, A(0)|A(1), do_length},
{"log", Node_builtin, LEX_BUILTIN, A(1), do_log},
#ifdef BITOPS
{"lshift", Node_builtin, LEX_BUILTIN, GAWKX|A(2), do_lshift},
#endif /* BITOPS */
{"match", Node_builtin, LEX_BUILTIN, NOT_OLD|A(2), do_match},
{"next", Node_K_next, LEX_NEXT, 0, 0},
{"nextfile", Node_K_nextfile, LEX_NEXTFILE, GAWKX, 0},
#ifdef BITOPS
{"or", Node_builtin, LEX_BUILTIN, GAWKX|A(2), do_or},
#endif /* BITOPS */
{"print", Node_K_print, LEX_PRINT, 0, 0},
{"printf", Node_K_printf, LEX_PRINTF, 0, 0},
{"rand", Node_builtin, LEX_BUILTIN, NOT_OLD|A(0), do_rand},
{"return", Node_K_return, LEX_RETURN, NOT_OLD, 0},
#ifdef BITOPS
{"rshift", Node_builtin, LEX_BUILTIN, GAWKX|A(2), do_rshift},
#endif /* BITOPS */
{"sin", Node_builtin, LEX_BUILTIN, NOT_OLD|A(1), do_sin},
{"split", Node_builtin, LEX_BUILTIN, A(2)|A(3), do_split},
{"sprintf", Node_builtin, LEX_BUILTIN, 0, do_sprintf},
{"sqrt", Node_builtin, LEX_BUILTIN, A(1), do_sqrt},
{"srand", Node_builtin, LEX_BUILTIN, NOT_OLD|A(0)|A(1), do_srand},
#ifdef ARRAYDEBUG
{"stopme", Node_builtin, LEX_BUILTIN, GAWKX|A(0), stopme},
#endif
{"strftime", Node_builtin, LEX_BUILTIN, GAWKX|A(0)|A(1)|A(2), do_strftime},
#ifdef BITOPS
{"strtonum", Node_builtin, LEX_BUILTIN, GAWKX|A(1), do_strtonum},
#endif /* BITOPS */
{"sub", Node_builtin, LEX_BUILTIN, NOT_OLD|A(2)|A(3), do_sub},
{"substr", Node_builtin, LEX_BUILTIN, A(2)|A(3), do_substr},
{"system", Node_builtin, LEX_BUILTIN, NOT_OLD|A(1), do_system},
{"systime", Node_builtin, LEX_BUILTIN, GAWKX|A(0), do_systime},
{"tolower", Node_builtin, LEX_BUILTIN, NOT_OLD|A(1), do_tolower},
{"toupper", Node_builtin, LEX_BUILTIN, NOT_OLD|A(1), do_toupper},
{"while", Node_K_while, LEX_WHILE, 0, 0},
#ifdef BITOPS
{"xor", Node_builtin, LEX_BUILTIN, GAWKX|A(2), do_xor},
#endif /* BITOPS */
};
/* yyerror --- print a syntax error message, show where */
#if defined(HAVE_STDARG_H) && defined(__STDC__) && __STDC__
static void
yyerror(const char *m, ...)
#else
/* VARARGS0 */
static void
yyerror(va_alist)
va_dcl
#endif
{
va_list args;
const char *mesg = NULL;
register char *bp, *cp;
char *scan;
char buf[120];
static char end_of_file_line[] = "(END OF FILE)";
errcount++;
/* Find the current line in the input file */
if (lexptr && lexeme) {
if (thisline == NULL) {
cp = lexeme;
if (*cp == '\n') {
cp--;
mesg = "unexpected newline";
}
for (; cp != lexptr_begin && *cp != '\n'; --cp)
continue;
if (*cp == '\n')
cp++;
thisline = cp;
}
/* NL isn't guaranteed */
bp = lexeme;
while (bp < lexend && *bp && *bp != '\n')
bp++;
} else {
thisline = end_of_file_line;
bp = thisline + strlen(thisline);
}
msg("%.*s", (int) (bp - thisline), thisline);
bp = buf;
cp = buf + sizeof(buf) - 24; /* 24 more than longest msg. input */
if (lexptr != NULL) {
scan = thisline;
while (bp < cp && scan < lexeme)
if (*scan++ == '\t')
*bp++ = '\t';
else
*bp++ = ' ';
*bp++ = '^';
*bp++ = ' ';
}
#if defined(HAVE_STDARG_H) && defined(__STDC__) && __STDC__
va_start(args, m);
if (mesg == NULL)
mesg = m;
#else
va_start(args);
if (mesg == NULL)
mesg = va_arg(args, char *);
#endif
strcpy(bp, mesg);
err("", buf, args);
va_end(args);
}
/* get_src_buf --- read the next buffer of source program */
static char *
get_src_buf()
{
static int samefile = FALSE;
static int nextfile = 0;
static char *buf = NULL;
static int fd;
int n;
register char *scan;
static int len = 0;
static int did_newline = FALSE;
int newfile;
struct stat sbuf;
# define SLOP 128 /* enough space to hold most source lines */
again:
newfile = FALSE;
if (nextfile > numfiles)
return NULL;
if (srcfiles[nextfile].stype == CMDLINE) {
if (len == 0) {
len = strlen(srcfiles[nextfile].val);
if (len == 0) {
/*
* Yet Another Special case:
* gawk '' /path/name
* Sigh.
*/
static int warned = FALSE;
if (do_lint && ! warned) {
warned = TRUE;
warning("empty program text on command line");
}
++nextfile;
goto again;
}
sourceline = 1;
lexptr = lexptr_begin = srcfiles[nextfile].val;
lexend = lexptr + len;
} else if (! did_newline && *(lexptr-1) != '\n') {
/*
* The following goop is to ensure that the source
* ends with a newline and that the entire current
* line is available for error messages.
*/
int offset;
did_newline = TRUE;
offset = lexptr - lexeme;
for (scan = lexeme; scan > lexptr_begin; scan--)
if (*scan == '\n') {
scan++;
break;
}
len = lexptr - scan;
emalloc(buf, char *, len+1, "get_src_buf");
memcpy(buf, scan, len);
thisline = buf;
lexptr = buf + len;
*lexptr = '\n';
lexeme = lexptr - offset;
lexptr_begin = buf;
lexend = lexptr + 1;
} else {
len = 0;
lexeme = lexptr = lexptr_begin = NULL;
}
if (lexptr == NULL && ++nextfile <= numfiles)
goto again;
return lexptr;
}
if (! samefile) {
source = srcfiles[nextfile].val;
if (source == NULL) {
if (buf != NULL) {
free(buf);
buf = NULL;
}
len = 0;
return lexeme = lexptr = lexptr_begin = NULL;
}
fd = pathopen(source);
if (fd <= INVALID_HANDLE) {
char *in;
/* suppress file name and line no. in error mesg */
in = source;
source = NULL;
fatal("can't open source file \"%s\" for reading (%s)",
in, strerror(errno));
}
len = optimal_bufsize(fd, & sbuf);
newfile = TRUE;
if (buf != NULL)
free(buf);
emalloc(buf, char *, len + SLOP, "get_src_buf");
lexptr_begin = buf + SLOP;
samefile = TRUE;
sourceline = 1;
} else {
/*
* Here, we retain the current source line (up to length SLOP)
* in the beginning of the buffer that was overallocated above
*/
int offset;
int linelen;
offset = lexptr - lexeme;
for (scan = lexeme; scan > lexptr_begin; scan--)
if (*scan == '\n') {
scan++;
break;
}
linelen = lexptr - scan;
if (linelen > SLOP)
linelen = SLOP;
thisline = buf + SLOP - linelen;
memcpy(thisline, scan, linelen);
lexeme = buf + SLOP - offset;
lexptr_begin = thisline;
}
n = read(fd, buf + SLOP, len);
if (n == -1)
fatal("can't read sourcefile \"%s\" (%s)",
source, strerror(errno));
if (n == 0) {
if (newfile) {
static int warned = FALSE;
if (do_lint && ! warned) {
warned = TRUE;
warning("source file `%s' is empty", source);
}
}
if (fileno(stdin) != fd) /* safety */
close(fd);
samefile = FALSE;
nextfile++;
if (lexeme)
*lexeme = '\0';
len = 0;
goto again;
}
lexptr = buf + SLOP;
lexend = lexptr + n;
return buf;
}
/* tokadd --- add a character to the token buffer */
#define tokadd(x) (*tok++ = (x), tok == tokend ? tokexpand() : tok)
/* tokexpand --- grow the token buffer */
char *
tokexpand()
{
static int toksize = 60;
int tokoffset;
tokoffset = tok - tokstart;
toksize *= 2;
if (tokstart != NULL)
erealloc(tokstart, char *, toksize, "tokexpand");
else
emalloc(tokstart, char *, toksize, "tokexpand");
tokend = tokstart + toksize;
tok = tokstart + tokoffset;
return tok;
}
/* nextc --- get the next input character */
#if DEBUG
int
nextc()
{
int c;
if (lexptr && lexptr < lexend)
c = (int) (unsigned char) *lexptr++;
else if (get_src_buf())
c = (int) (unsigned char) *lexptr++;
else
c = EOF;
return c;
}
#else
#define nextc() ((lexptr && lexptr < lexend) ? \
((int) (unsigned char) *lexptr++) : \
(get_src_buf() ? ((int) (unsigned char) *lexptr++) : EOF) \
)
#endif
/* pushback --- push a character back on the input */
#define pushback() (lexptr && lexptr > lexptr_begin ? lexptr-- : lexptr)
/* allow_newline --- allow newline after &&, ||, ? and : */
static void
allow_newline()
{
int c;
for (;;) {
c = nextc();
if (c == EOF)
break;
if (c == '#') {
while ((c = nextc()) != '\n' && c != EOF)
continue;
if (c == EOF)
break;
}
if (c == '\n')
sourceline++;
if (! isspace(c)) {
pushback();
break;
}
}
}
/* yylex --- Read the input and turn it into tokens. */
static int
yylex()
{
register int c, c1;
int seen_e = FALSE; /* These are for numbers */
int seen_point = FALSE;
int esc_seen; /* for literal strings */
int low, mid, high;
static int did_newline = FALSE;
char *tokkey;
static int lasttok = 0, eof_warned = FALSE;
int inhex = FALSE;
if (nextc() == EOF) {
if (lasttok != NEWLINE) {
lasttok = NEWLINE;
if (do_lint && ! eof_warned) {
warning("source file does not end in newline");
eof_warned = TRUE;
}
return NEWLINE; /* fake it */
}
return 0;
}
pushback();
#ifdef OS2
/*
* added for OS/2's extproc feature of cmd.exe
* (like #! in BSD sh)
*/
if (strncasecmp(lexptr, "extproc ", 8) == 0) {
while (*lexptr && *lexptr != '\n')
lexptr++;
}
#endif
lexeme = lexptr;
thisline = NULL;
if (want_regexp) {
int in_brack = 0; /* count brackets, [[:alnum:]] allowed */
/*
* Counting brackets is non-trivial. [[] is ok,
* and so is [\]], with a point being that /[/]/ as a regexp
* constant has to work.
*
* Do not count [ or ] if either one is preceded by a \.
* A `[' should be counted if
* a) it is the first one so far (in_brack == 0)
* b) it is the `[' in `[:'
* A ']' should be counted if not preceded by a \, since
* it is either closing `:]' or just a plain list.
* According to POSIX, []] is how you put a ] into a set.
* Try to handle that too.
*
* The code for \ handles \[ and \].
*/
want_regexp = FALSE;
tok = tokstart;
for (;;) {
c = nextc();
switch (c) {
case '[':
/* one day check for `.' and `=' too */
if ((c1 = nextc()) == ':' || in_brack == 0)
in_brack++;
pushback();
break;
case ']':
if (tokstart[0] == '['
&& (tok == tokstart + 1
|| (tok == tokstart + 2
&& tokstart[1] == '^')))
/* do nothing */;
else
in_brack--;
break;
case '\\':
if ((c = nextc()) == EOF) {
yyerror("unterminated regexp ends with \\ at end of file");
return lasttok = REGEXP; /* kludge */
} else if (c == '\n') {
sourceline++;
continue;
} else {
tokadd('\\');
tokadd(c);
continue;
}
break;
case '/': /* end of the regexp */
if (in_brack > 0)
break;
pushback();
tokadd('\0');
yylval.sval = tokstart;
return lasttok = REGEXP;
case '\n':
pushback();
yyerror("unterminated regexp");
return lasttok = REGEXP; /* kludge */
case EOF:
yyerror("unterminated regexp at end of file");
return lasttok = REGEXP; /* kludge */
}
tokadd(c);
}
}
retry:
while ((c = nextc()) == ' ' || c == '\t')
continue;
lexeme = lexptr ? lexptr - 1 : lexptr;
thisline = NULL;
tok = tokstart;
yylval.nodetypeval = Node_illegal;
switch (c) {
case EOF:
if (lasttok != NEWLINE) {
lasttok = NEWLINE;
if (do_lint && ! eof_warned) {
warning("source file does not end in newline");
eof_warned = TRUE;
}
return NEWLINE; /* fake it */
}
return 0;
case '\n':
sourceline++;
return lasttok = NEWLINE;
case '#': /* it's a comment */
while ((c = nextc()) != '\n') {
if (c == EOF) {
if (lasttok != NEWLINE) {
lasttok = NEWLINE;
if (do_lint && ! eof_warned) {
warning(
"source file does not end in newline");
eof_warned = TRUE;
}
return NEWLINE; /* fake it */
}
return 0;
}
}
sourceline++;
return lasttok = NEWLINE;
case '\\':
#ifdef RELAXED_CONTINUATION
/*
* This code puports to allow comments and/or whitespace
* after the `\' at the end of a line used for continuation.
* Use it at your own risk. We think it's a bad idea, which
* is why it's not on by default.
*/
if (! do_traditional) {
/* strip trailing white-space and/or comment */
while ((c = nextc()) == ' ' || c == '\t')
continue;
if (c == '#') {
if (do_lint)
warning(
"use of `\\ #...' line continuation is not portable");
while ((c = nextc()) != '\n')
if (c == EOF)
break;
}
pushback();
}
#endif /* RELAXED_CONTINUATION */
if (nextc() == '\n') {
sourceline++;
goto retry;
} else {
yyerror("backslash not last character on line");
exit(1);
}
break;
case '$':
want_assign = TRUE;
return lasttok = '$';
case ':':
case '?':
allow_newline();
return lasttok = c;
case ')':
case '(':
case ';':
case '{':
case ',':
want_assign = FALSE;
/* fall through */
case '[':
case ']':
return lasttok = c;
case '*':
if ((c = nextc()) == '=') {
yylval.nodetypeval = Node_assign_times;
return lasttok = ASSIGNOP;
} else if (do_posix) {
pushback();
return lasttok = '*';
} else if (c == '*') {
/* make ** and **= aliases for ^ and ^= */
static int did_warn_op = FALSE, did_warn_assgn = FALSE;
if (nextc() == '=') {
if (do_lint && ! did_warn_assgn) {
did_warn_assgn = TRUE;
warning("**= is not allowed by POSIX");
warning("operator `**=' is not supported in old awk");
}
yylval.nodetypeval = Node_assign_exp;
return ASSIGNOP;
} else {
pushback();
if (do_lint && ! did_warn_op) {
did_warn_op = TRUE;
warning("** is not allowed by POSIX");
warning("operator `**' is not supported in old awk");
}
return lasttok = '^';
}
}
pushback();
return lasttok = '*';
case '/':
if (want_assign) {
if (nextc() == '=') {
yylval.nodetypeval = Node_assign_quotient;
return lasttok = ASSIGNOP;
}
pushback();
}
return lasttok = '/';
case '%':
if (nextc() == '=') {
yylval.nodetypeval = Node_assign_mod;
return lasttok = ASSIGNOP;
}
pushback();
return lasttok = '%';
case '^':
{
static int did_warn_op = FALSE, did_warn_assgn = FALSE;
if (nextc() == '=') {
if (do_lint && ! did_warn_assgn) {
did_warn_assgn = TRUE;
warning("operator `^=' is not supported in old awk");
}
yylval.nodetypeval = Node_assign_exp;
return lasttok = ASSIGNOP;
}
pushback();
if (do_lint && ! did_warn_op) {
did_warn_op = TRUE;
warning("operator `^' is not supported in old awk");
}
return lasttok = '^';
}
case '+':
if ((c = nextc()) == '=') {
yylval.nodetypeval = Node_assign_plus;
return lasttok = ASSIGNOP;
}
if (c == '+')
return lasttok = INCREMENT;
pushback();
return lasttok = '+';
case '!':
if ((c = nextc()) == '=') {
yylval.nodetypeval = Node_notequal;
return lasttok = RELOP;
}
if (c == '~') {
yylval.nodetypeval = Node_nomatch;
want_assign = FALSE;
return lasttok = MATCHOP;
}
pushback();
return lasttok = '!';
case '<':
if (nextc() == '=') {
yylval.nodetypeval = Node_leq;
return lasttok = RELOP;
}
yylval.nodetypeval = Node_less;
pushback();
return lasttok = '<';
case '=':
if (nextc() == '=') {
yylval.nodetypeval = Node_equal;
return lasttok = RELOP;
}
yylval.nodetypeval = Node_assign;
pushback();
return lasttok = ASSIGNOP;
case '>':
if ((c = nextc()) == '=') {
yylval.nodetypeval = Node_geq;
return lasttok = RELOP;
} else if (c == '>') {
yylval.nodetypeval = Node_redirect_append;
return lasttok = APPEND_OP;
}
yylval.nodetypeval = Node_greater;
pushback();
return lasttok = '>';
case '~':
yylval.nodetypeval = Node_match;
want_assign = FALSE;
return lasttok = MATCHOP;
case '}':
/*
* Added did newline stuff. Easier than
* hacking the grammar.
*/
if (did_newline) {
did_newline = FALSE;
return lasttok = c;
}
did_newline++;
--lexptr; /* pick up } next time */
return lasttok = NEWLINE;
case '"':
esc_seen = FALSE;
while ((c = nextc()) != '"') {
if (c == '\n') {
pushback();
yyerror("unterminated string");
exit(1);
}
if (c == '\\') {
c = nextc();
if (c == '\n') {
sourceline++;
continue;
}
esc_seen = TRUE;
tokadd('\\');
}
if (c == EOF) {
pushback();
yyerror("unterminated string");
exit(1);
}
tokadd(c);
}
yylval.nodeval = make_str_node(tokstart,
tok - tokstart, esc_seen ? SCAN : 0);
yylval.nodeval->flags |= PERM;
return lasttok = YSTRING;
case '-':
if ((c = nextc()) == '=') {
yylval.nodetypeval = Node_assign_minus;
return lasttok = ASSIGNOP;
}
if (c == '-')
return lasttok = DECREMENT;
pushback();
return lasttok = '-';
case '.':
c = nextc();
pushback();
if (! isdigit(c))
return lasttok = '.';
else
c = '.';
/* FALL THROUGH */
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
/* It's a number */
for (;;) {
int gotnumber = FALSE;
tokadd(c);
switch (c) {
#ifdef BITOPS
case 'x':
case 'X':
if (do_traditional)
goto done;
if (tok == tokstart + 2)
inhex = TRUE;
break;
#endif /* BITOTS */
case '.':
if (seen_point) {
gotnumber = TRUE;
break;
}
seen_point = TRUE;
break;
case 'e':
case 'E':
if (inhex)
break;
if (seen_e) {
gotnumber = TRUE;
break;
}
seen_e = TRUE;
if ((c = nextc()) == '-' || c == '+')
tokadd(c);
else
pushback();
break;
#ifdef BITOPS
case 'a':
case 'A':
case 'b':
case 'B':
case 'c':
case 'C':
case 'D':
case 'd':
case 'f':
case 'F':
if (do_traditional || ! inhex)
goto done;
/* fall through */
#endif
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
break;
default:
done:
gotnumber = TRUE;
}
if (gotnumber)
break;
c = nextc();
}
if (c != EOF)
pushback();
else if (do_lint && ! eof_warned) {
warning("source file does not end in newline");
eof_warned = TRUE;
}
tokadd('\0');
#ifdef BITOPS
if (! do_traditional && isnondecimal(tokstart))
yylval.nodeval = make_number(nondec2awknum(tokstart, strlen(tokstart)));
else
#endif /* BITOPS */
yylval.nodeval = make_number(atof(tokstart));
yylval.nodeval->flags |= PERM;
return lasttok = YNUMBER;
case '&':
if ((c = nextc()) == '&') {
yylval.nodetypeval = Node_and;
allow_newline();
want_assign = FALSE;
return lasttok = LEX_AND;
}
pushback();
return lasttok = '&';
case '|':
if ((c = nextc()) == '|') {
yylval.nodetypeval = Node_or;
allow_newline();
want_assign = FALSE;
return lasttok = LEX_OR;
}
pushback();
return lasttok = '|';
}
if (c != '_' && ! isalpha(c)) {
yyerror("Invalid char '%c' in expression\n", c);
exit(1);
}
/* it's some type of name-type-thing. Find its length. */
tok = tokstart;
while (is_identchar(c)) {
tokadd(c);
c = nextc();
}
tokadd('\0');
emalloc(tokkey, char *, tok - tokstart, "yylex");
memcpy(tokkey, tokstart, tok - tokstart);
if (c != EOF)
pushback();
else if (do_lint && ! eof_warned) {
warning("source file does not end in newline");
eof_warned = TRUE;
}
/* See if it is a special token. */
low = 0;
high = (sizeof(tokentab) / sizeof(tokentab[0])) - 1;
while (low <= high) {
int i;
mid = (low + high) / 2;
c = *tokstart - tokentab[mid].operator[0];
i = c ? c : strcmp(tokstart, tokentab[mid].operator);
if (i < 0) /* token < mid */
high = mid - 1;
else if (i > 0) /* token > mid */
low = mid + 1;
else {
if (do_lint) {
if (tokentab[mid].flags & GAWKX)
warning("%s() is a gawk extension",
tokentab[mid].operator);
if (tokentab[mid].flags & RESX)
warning("%s() is a Bell Labs extension",
tokentab[mid].operator);
if (tokentab[mid].flags & NOT_POSIX)
warning("POSIX does not allow %s",
tokentab[mid].operator);
}
if (do_lint_old && (tokentab[mid].flags & NOT_OLD))
warning("%s is not supported in old awk",
tokentab[mid].operator);
if ((do_traditional && (tokentab[mid].flags & GAWKX))
|| (do_posix && (tokentab[mid].flags & NOT_POSIX)))
break;
if (tokentab[mid].class == LEX_BUILTIN
|| tokentab[mid].class == LEX_LENGTH
)
yylval.lval = mid;
else
yylval.nodetypeval = tokentab[mid].value;
free(tokkey);
return lasttok = tokentab[mid].class;
}
}
yylval.sval = tokkey;
if (*lexptr == '(')
return lasttok = FUNC_CALL;
else {
want_assign = TRUE;
return lasttok = NAME;
}
}
/* node_common --- common code for allocating a new node */
static NODE *
node_common(op)
NODETYPE op;
{
register NODE *r;
getnode(r);
r->type = op;
r->flags = MALLOC;
/* if lookahead is NL, lineno is 1 too high */
if (lexeme && *lexeme == '\n')
r->source_line = sourceline - 1;
else
r->source_line = sourceline;
r->source_file = source;
return r;
}
/* node --- allocates a node with defined lnode and rnode. */
NODE *
node(left, op, right)
NODE *left, *right;
NODETYPE op;
{
register NODE *r;
r = node_common(op);
r->lnode = left;
r->rnode = right;
return r;
}
/* snode --- allocate a node with defined subnode and proc for builtin
functions. Checks for arg. count and supplies defaults where
possible. */
static NODE *
snode(subn, op, idx)
NODETYPE op;
int idx;
NODE *subn;
{
register NODE *r;
register NODE *n;
int nexp = 0;
int args_allowed;
r = node_common(op);
/* traverse expression list to see how many args. given */
for (n = subn; n != NULL; n = n->rnode) {
nexp++;
if (nexp > 3)
break;
}
/* check against how many args. are allowed for this builtin */
args_allowed = tokentab[idx].flags & ARGS;
if (args_allowed && (args_allowed & A(nexp)) == 0)
fatal("%s() cannot have %d argument%c",
tokentab[idx].operator, nexp, nexp == 1 ? ' ' : 's');
r->proc = tokentab[idx].ptr;
/* special case processing for a few builtins */
/*
* FIXME: go through these to make sure that everything done
* here is really right. Move anything that's not into
* the corresponding routine.
*/
if (nexp == 0 && r->proc == do_length) {
subn = node(node(make_number(0.0), Node_field_spec, (NODE *) NULL),
Node_expression_list,
(NODE *) NULL);
} else if (r->proc == do_match) {
if (subn->rnode->lnode->type != Node_regex)
subn->rnode->lnode = mk_rexp(subn->rnode->lnode);
} else if (r->proc == do_sub || r->proc == do_gsub) {
if (subn->lnode->type != Node_regex)
subn->lnode = mk_rexp(subn->lnode);
if (nexp == 2)
append_right(subn, node(node(make_number(0.0),
Node_field_spec,
(NODE *) NULL),
Node_expression_list,
(NODE *) NULL));
else if (subn->rnode->rnode->lnode->type == Node_val) {
if (do_lint)
warning("string literal as last arg of substitute");
} else if (! isassignable(subn->rnode->rnode->lnode))
yyerror("%s third parameter is not a changeable object",
r->proc == do_sub ? "sub" : "gsub");
} else if (r->proc == do_gensub) {
if (subn->lnode->type != Node_regex)
subn->lnode = mk_rexp(subn->lnode);
if (nexp == 3)
append_right(subn, node(node(make_number(0.0),
Node_field_spec,
(NODE *) NULL),
Node_expression_list,
(NODE *) NULL));
} else if (r->proc == do_split) {
if (nexp == 2)
append_right(subn,
node(FS_node, Node_expression_list, (NODE *) NULL));
n = subn->rnode->rnode->lnode;
if (n->type != Node_regex)
subn->rnode->rnode->lnode = mk_rexp(n);
if (nexp == 2)
subn->rnode->rnode->lnode->re_flags |= FS_DFLT;
}
r->subnode = subn;
return r;
}
/*
* mkrangenode:
* This allocates a Node_line_range node with defined condpair and
* zeroes the trigger word to avoid the temptation of assuming that calling
* 'node( foo, Node_line_range, 0)' will properly initialize 'triggered'.
* Otherwise like node().
*/
static NODE *
mkrangenode(cpair)
NODE *cpair;
{
register NODE *r;
getnode(r);
r->type = Node_line_range;
r->condpair = cpair;
r->triggered = FALSE;
return r;
}
/* make_for_loop --- build a for loop */
static NODE *
make_for_loop(init, cond, incr)
NODE *init, *cond, *incr;
{
register FOR_LOOP_HEADER *r;
NODE *n;
emalloc(r, FOR_LOOP_HEADER *, sizeof(FOR_LOOP_HEADER), "make_for_loop");
getnode(n);
n->type = Node_illegal;
r->init = init;
r->cond = cond;
r->incr = incr;
n->sub.nodep.r.hd = r;
return n;
}
/* dup_parms --- return TRUE if there are duplicate parameters */
static int
dup_parms(func)
NODE *func;
{
register NODE *np;
char *fname, **names;
int count, i, j, dups;
NODE *params;
if (func == NULL) /* error earlier */
return TRUE;
fname = func->param;
count = func->param_cnt;
params = func->rnode;
if (count == 0) /* no args, no problem */
return FALSE;
if (params == NULL) /* error earlier */
return TRUE;
emalloc(names, char **, count * sizeof(char *), "dup_parms");
i = 0;
for (np = params; np != NULL; np = np->rnode) {
if (np->param == NULL) { /* error earlier, give up, go home */
free(names);
return TRUE;
}
names[i++] = np->param;
}
dups = 0;
for (i = 1; i < count; i++) {
for (j = 0; j < i; j++) {
if (strcmp(names[i], names[j]) == 0) {
dups++;
error(
"function `%s': parameter #%d, `%s', duplicates parameter #%d",
fname, i+1, names[j], j+1);
}
}
}
free(names);
return (dups > 0 ? TRUE : FALSE);
}
/*
* install:
* Install a name in the symbol table, even if it is already there.
* Caller must check against redefinition if that is desired.
*/
NODE *
install(name, value)
char *name;
NODE *value;
{
register NODE *hp;
register size_t len;
register int bucket;
len = strlen(name);
bucket = hash(name, len, (unsigned long) HASHSIZE);
getnode(hp);
hp->type = Node_hashnode;
hp->hnext = variables[bucket];
variables[bucket] = hp;
hp->hlength = len;
hp->hvalue = value;
hp->hname = name;
hp->hvalue->vname = name;
return hp->hvalue;
}
/* lookup --- find the most recent hash node for name installed by install */
NODE *
lookup(name)
const char *name;
{
register NODE *bucket;
register size_t len;
len = strlen(name);
for (bucket = variables[hash(name, len, (unsigned long) HASHSIZE)];
bucket != NULL; bucket = bucket->hnext)
if (bucket->hlength == len && STREQN(bucket->hname, name, len))
return bucket->hvalue;
return NULL;
}
/*
* append_right:
* Add new to the rightmost branch of LIST. This uses n^2 time, so we make
* a simple attempt at optimizing it.
*/
static NODE *
append_right(list, new)
NODE *list, *new;
{
register NODE *oldlist;
static NODE *savefront = NULL, *savetail = NULL;
if (list == NULL || new == NULL)
return list;
oldlist = list;
if (savefront == oldlist) {
savetail = savetail->rnode = new;
return oldlist;
} else
savefront = oldlist;
while (list->rnode != NULL)
list = list->rnode;
savetail = list->rnode = new;
return oldlist;
}
/*
* func_install:
* check if name is already installed; if so, it had better have Null value,
* in which case def is added as the value. Otherwise, install name with def
* as value.
*/
static void
func_install(params, def)
NODE *params;
NODE *def;
{
NODE *r;
NODE *n;
/* check for function foo(foo) { ... }. bleh. */
for (n = params->rnode; n != NULL; n = n->rnode) {
if (strcmp(n->param, params->param) == 0)
fatal("function `%s': can't use function name as parameter name",
params->param);
}
pop_params(params->rnode);
pop_var(params, FALSE);
r = lookup(params->param);
if (r != NULL) {
fatal("function name `%s' previously defined", params->param);
} else
(void) install(params->param, node(params, Node_func, def));
func_use(params->param, FUNC_DEFINE);
}
/* pop_var --- remove a variable from the symbol table */
static void
pop_var(np, freeit)
NODE *np;
int freeit;
{
register NODE *bucket, **save;
register size_t len;
char *name;
name = np->param;
len = strlen(name);
save = &(variables[hash(name, len, (unsigned long) HASHSIZE)]);
for (bucket = *save; bucket != NULL; bucket = bucket->hnext) {
if (len == bucket->hlength && STREQN(bucket->hname, name, len)) {
*save = bucket->hnext;
freenode(bucket);
if (freeit)
free(np->param);
return;
}
save = &(bucket->hnext);
}
}
/* pop_params --- remove list of function parameters from symbol table */
/*
* pop parameters out of the symbol table. do this in reverse order to
* avoid reading freed memory if there were duplicated parameters.
*/
static void
pop_params(params)
NODE *params;
{
if (params == NULL)
return;
pop_params(params->rnode);
pop_var(params, TRUE);
}
/* make_param --- make NAME into a function parameter */
static NODE *
make_param(name)
char *name;
{
NODE *r;
getnode(r);
r->type = Node_param_list;
r->rnode = NULL;
r->param = name;
r->param_cnt = param_counter++;
return (install(name, r));
}
static struct fdesc {
char *name;
short used;
short defined;
struct fdesc *next;
} *ftable[HASHSIZE];
/* func_use --- track uses and definitions of functions */
static void
func_use(name, how)
char *name;
enum defref how;
{
struct fdesc *fp;
int len;
int ind;
len = strlen(name);
ind = hash(name, len, HASHSIZE);
for (fp = ftable[ind]; fp != NULL; fp = fp->next) {
if (strcmp(fp->name, name) == 0) {
if (how == FUNC_DEFINE)
fp->defined++;
else
fp->used++;
return;
}
}
/* not in the table, fall through to allocate a new one */
emalloc(fp, struct fdesc *, sizeof(struct fdesc), "func_use");
memset(fp, '\0', sizeof(struct fdesc));
emalloc(fp->name, char *, len + 1, "func_use");
strcpy(fp->name, name);
if (how == FUNC_DEFINE)
fp->defined++;
else
fp->used++;
fp->next = ftable[ind];
ftable[ind] = fp;
}
/* check_funcs --- verify functions that are called but not defined */
static void
check_funcs()
{
struct fdesc *fp, *next;
int i;
for (i = 0; i < HASHSIZE; i++) {
for (fp = ftable[i]; fp != NULL; fp = fp->next) {
#ifdef REALLYMEAN
/* making this the default breaks old code. sigh. */
if (fp->defined == 0) {
error(
"function `%s' called but never defined", fp->name);
errcount++;
}
#else
if (do_lint && fp->defined == 0)
warning(
"function `%s' called but never defined", fp->name);
#endif
if (do_lint && fp->used == 0) {
warning("function `%s' defined but never called",
fp->name);
}
}
}
/* now let's free all the memory */
for (i = 0; i < HASHSIZE; i++) {
for (fp = ftable[i]; fp != NULL; fp = next) {
next = fp->next;
free(fp->name);
free(fp);
}
}
}
/* param_sanity --- look for parameters that are regexp constants */
static void
param_sanity(arglist)
NODE *arglist;
{
NODE *argp, *arg;
int i;
for (i = 1, argp = arglist; argp != NULL; argp = argp->rnode, i++) {
arg = argp->lnode;
if (arg->type == Node_regex)
warning("regexp constant for parameter #%d yields boolean value", i);
}
}
/* variable --- make sure NAME is in the symbol table */
NODE *
variable(name, can_free, type)
char *name;
int can_free;
NODETYPE type;
{
register NODE *r;
static int env_loaded = FALSE;
if (! env_loaded && STREQ(name, "ENVIRON")) {
load_environ();
env_loaded = TRUE;
}
if ((r = lookup(name)) == NULL)
r = install(name, node(Nnull_string, type, (NODE *) NULL));
else if (can_free)
free(name);
return r;
}
/* mk_rexp --- make a regular expression constant */
static NODE *
mk_rexp(exp)
NODE *exp;
{
NODE *n;
if (exp->type == Node_regex)
return exp;
getnode(n);
n->type = Node_regex;
n->re_exp = exp;
n->re_text = NULL;
n->re_reg = NULL;
n->re_flags = 0;
n->re_cnt = 1;
return n;
}
/* isnoeffect --- when used as a statement, has no side effects */
/*
* To be completely general, we should recursively walk the parse
* tree, to make sure that all the subexpressions also have no effect.
* Instead, we just weaken the actual warning that's printed, up above
* in the grammar.
*/
static int
isnoeffect(type)
NODETYPE type;
{
switch (type) {
case Node_times:
case Node_quotient:
case Node_mod:
case Node_plus:
case Node_minus:
case Node_subscript:
case Node_concat:
case Node_exp:
case Node_unary_minus:
case Node_field_spec:
case Node_and:
case Node_or:
case Node_equal:
case Node_notequal:
case Node_less:
case Node_greater:
case Node_leq:
case Node_geq:
case Node_match:
case Node_nomatch:
case Node_not:
case Node_val:
case Node_in_array:
case Node_NF:
case Node_NR:
case Node_FNR:
case Node_FS:
case Node_RS:
case Node_FIELDWIDTHS:
case Node_IGNORECASE:
case Node_OFS:
case Node_ORS:
case Node_OFMT:
case Node_CONVFMT:
return TRUE;
default:
break; /* keeps gcc -Wall happy */
}
return FALSE;
}
/* isassignable --- can this node be assigned to? */
static int
isassignable(n)
register NODE *n;
{
switch (n->type) {
case Node_var:
case Node_FIELDWIDTHS:
case Node_RS:
case Node_FS:
case Node_FNR:
case Node_NR:
case Node_NF:
case Node_IGNORECASE:
case Node_OFMT:
case Node_CONVFMT:
case Node_ORS:
case Node_OFS:
case Node_field_spec:
case Node_subscript:
return TRUE;
case Node_param_list:
return ((n->flags & FUNC) == 0); /* ok if not func name */
default:
break; /* keeps gcc -Wall happy */
}
return FALSE;
}
/* for debugging */
NODE *
stopme(tree)
NODE *tree;
{
return tmp_number((AWKNUM) 0.0);
}
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