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freebsd/gnu/usr.bin/bc/bc.c
Rodney W. Grimes 4399be3cbd Remove trailing whitespace.
1995-05-30 05:05:38 +00:00

1370 lines
43 KiB
C
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#ifndef lint
static char yysccsid[] = "@(#)yaccpar 1.8 (Berkeley) 01/20/90";
#endif
#define YYBYACC 1
#line 2 "bc.y"
/* bc.y: The grammar for a POSIX compatable bc processor with some
extensions to the language. */
/* This file is part of bc written for MINIX.
Copyright (C) 1991, 1992 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 of the License , or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
You may contact the author by:
e-mail: phil@cs.wwu.edu
us-mail: Philip A. Nelson
Computer Science Department, 9062
Western Washington University
Bellingham, WA 98226-9062
*************************************************************************/
#include "bcdefs.h"
#include "global.h"
#include "proto.h"
#line 38 "bc.y"
typedef union {
char *s_value;
char c_value;
int i_value;
arg_list *a_value;
} YYSTYPE;
#line 46 "y.tab.c"
#define NEWLINE 257
#define AND 258
#define OR 259
#define NOT 260
#define STRING 261
#define NAME 262
#define NUMBER 263
#define MUL_OP 264
#define ASSIGN_OP 265
#define REL_OP 266
#define INCR_DECR 267
#define Define 268
#define Break 269
#define Quit 270
#define Length 271
#define Return 272
#define For 273
#define If 274
#define While 275
#define Sqrt 276
#define Else 277
#define Scale 278
#define Ibase 279
#define Obase 280
#define Auto 281
#define Read 282
#define Warranty 283
#define Halt 284
#define Last 285
#define Continue 286
#define Print 287
#define Limits 288
#define UNARY_MINUS 289
#define YYERRCODE 256
short yylhs[] = { -1,
0, 0, 10, 10, 10, 11, 11, 11, 11, 12,
12, 12, 12, 12, 12, 15, 15, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 16, 17, 18,
19, 13, 20, 13, 22, 23, 13, 13, 25, 13,
24, 24, 26, 26, 21, 27, 21, 28, 14, 5,
5, 6, 6, 6, 7, 7, 7, 7, 8, 8,
9, 9, 9, 9, 4, 4, 2, 2, 29, 1,
30, 1, 31, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 3, 3, 3, 3, 3, 3,
};
short yylen[] = { 2,
0, 2, 2, 1, 2, 0, 1, 3, 2, 0,
1, 2, 3, 2, 3, 1, 2, 1, 1, 1,
1, 1, 1, 1, 1, 1, 4, 0, 0, 0,
0, 13, 0, 7, 0, 0, 7, 3, 0, 3,
1, 3, 1, 1, 0, 0, 3, 0, 12, 0,
1, 0, 3, 3, 1, 3, 3, 5, 0, 1,
1, 3, 3, 5, 0, 1, 0, 1, 0, 4,
0, 4, 0, 4, 2, 3, 3, 3, 3, 3,
2, 1, 1, 3, 4, 2, 2, 4, 4, 4,
3, 1, 4, 1, 1, 1, 1,
};
short yydefred[] = { 1,
0, 0, 0, 21, 0, 83, 0, 0, 22, 24,
0, 0, 28, 0, 35, 0, 0, 94, 95, 0,
18, 25, 97, 23, 39, 19, 0, 0, 0, 0,
0, 2, 0, 16, 4, 7, 5, 17, 0, 0,
0, 0, 96, 86, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 81, 0, 0, 0, 11, 71,
73, 0, 0, 0, 0, 0, 69, 87, 3, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 91, 43, 0, 40, 0, 84,
0, 0, 38, 0, 0, 0, 0, 0, 0, 0,
0, 8, 0, 85, 0, 93, 0, 0, 0, 88,
27, 0, 0, 33, 0, 89, 90, 0, 13, 15,
0, 0, 0, 62, 0, 0, 0, 0, 0, 29,
0, 0, 42, 0, 56, 0, 0, 0, 0, 0,
64, 0, 0, 0, 46, 34, 37, 0, 48, 58,
30, 0, 0, 0, 0, 47, 53, 54, 0, 0,
0, 31, 49, 0, 32,
};
short yydgoto[] = { 1,
30, 79, 31, 113, 108, 149, 109, 73, 74, 32,
33, 58, 34, 35, 59, 48, 138, 155, 164, 131,
146, 50, 132, 88, 54, 89, 152, 154, 101, 94,
95,
};
short yysindex[] = { 0,
-7, 58, 212, 0, -22, 0, -233, -241, 0, 0,
-8, -5, 0, -4, 0, 2, 4, 0, 0, 9,
0, 0, 0, 0, 0, 0, 212, 212, 91, 725,
-240, 0, -29, 0, 0, 0, 0, 0, 84, 245,
212, -57, 0, 0, 10, 212, 212, 14, 212, 16,
212, 212, 23, 156, 0, 549, 127, -52, 0, 0,
0, 212, 212, 212, 212, 212, 0, 0, 0, 91,
-17, 725, 24, -3, 578, -205, 562, 725, 27, 212,
606, 212, 669, 716, 0, 0, 725, 0, 19, 0,
91, 127, 0, 212, 212, -36, -39, -91, -91, -36,
212, 0, 166, 0, 277, 0, -21, 36, 40, 0,
0, 725, 28, 0, 725, 0, 0, 156, 0, 0,
84, 540, -39, 0, -9, 725, -2, -37, -174, 0,
127, 48, 0, 346, 0, -167, 3, 212, -185, 127,
0, -188, 6, 37, 0, 0, 0, -205, 0, 0,
0, 127, -42, 91, 212, 0, 0, 0, -20, 54,
26, 0, 0, 127, 0,
};
short yyrindex[] = { 0,
-16, 0, 0, 0, 409, 0, 0, 0, 0, 0,
0, -58, 0, 0, 0, 0, 426, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, -50, 46,
470, 0, 0, 0, 0, 0, 0, 0, 661, 56,
0, 525, 0, 0, 0, 0, 59, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, -6,
705, 7, 0, 60, 0, 61, 0, 63, 0, 49,
0, 0, 0, 0, 0, 0, 17, 0, 78, 0,
-47, -45, 0, 0, 0, 537, 440, 620, 637, 594,
0, 0, 0, 0, 0, 0, -33, 0, 66, 0,
0, -19, 0, 0, 68, 0, 0, 0, 0, 0,
667, 680, 508, 0, 705, 18, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, -31, 49, -44, 0,
0, -40, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 1, 69, 0, 0, 0, 0, 0,
13, 0, 0, 0, 0,
};
short yygindex[] = { 0,
958, 0, 104, -118, 0, 0, -35, 0, 0, 0,
0, -34, 22, 0, 15, 0, 0, 0, 0, 0,
0, 0, 0, -1, 0, 0, 0, 0, 0, 0,
0,
};
#define YYTABLESIZE 1113
short yytable[] = { 52,
26, 129, 66, 64, 52, 65, 92, 55, 10, 57,
55, 12, 57, 14, 45, 36, 158, 40, 52, 144,
45, 66, 40, 38, 67, 55, 68, 57, 42, 70,
40, 46, 28, 41, 47, 49, 160, 27, 92, 66,
105, 51, 6, 52, 43, 18, 19, 61, 53, 76,
61, 23, 9, 80, 66, 82, 107, 66, 63, 10,
44, 63, 118, 85, 104, 28, 26, 111, 41, 127,
27, 12, 93, 103, 10, 44, 128, 12, 38, 14,
45, 134, 52, 129, 102, 136, 130, 137, 140, 142,
135, 145, 148, 143, 162, 151, 59, 28, 150, 67,
60, 50, 27, 68, 20, 119, 51, 65, 36, 65,
44, 0, 153, 120, 0, 29, 133, 0, 0, 159,
0, 0, 0, 0, 0, 0, 64, 0, 65, 0,
28, 0, 0, 0, 0, 27, 41, 0, 0, 0,
0, 44, 0, 0, 0, 0, 0, 0, 29, 0,
163, 0, 139, 0, 0, 0, 0, 0, 0, 0,
0, 147, 0, 0, 0, 0, 28, 0, 0, 0,
20, 27, 62, 156, 0, 119, 0, 66, 0, 0,
29, 0, 0, 0, 0, 165, 0, 0, 0, 0,
0, 0, 0, 0, 0, 28, 0, 0, 26, 0,
27, 0, 41, 0, 91, 28, 10, 0, 0, 12,
27, 14, 45, 29, 157, 52, 52, 0, 26, 52,
52, 52, 52, 55, 62, 57, 52, 69, 52, 52,
52, 52, 52, 52, 52, 52, 161, 52, 52, 52,
6, 52, 52, 52, 52, 52, 52, 52, 2, 29,
9, 28, 3, 4, 5, 6, 27, 10, 124, 7,
8, 9, 10, 11, 12, 13, 14, 15, 16, 12,
17, 18, 19, 44, 20, 21, 22, 23, 24, 25,
26, 57, 0, 0, 28, 3, 4, 5, 6, 27,
0, 0, 7, 44, 9, 10, 11, 12, 13, 14,
15, 16, 20, 17, 18, 19, 0, 20, 21, 22,
23, 24, 25, 26, 37, 0, 28, 3, 4, 5,
6, 27, 20, 0, 7, 0, 9, 10, 11, 12,
13, 14, 15, 16, 41, 17, 18, 19, 0, 20,
21, 22, 23, 24, 25, 26, 57, 62, 0, 63,
3, 4, 5, 6, 41, 0, 0, 7, 0, 9,
10, 11, 12, 13, 14, 15, 16, 0, 17, 18,
19, 0, 20, 21, 22, 23, 24, 25, 26, 0,
0, 0, 0, 0, 0, 28, 3, 4, 5, 6,
27, 0, 0, 7, 0, 9, 10, 11, 12, 13,
14, 15, 16, 0, 17, 18, 19, 0, 20, 21,
22, 23, 24, 25, 26, 3, 86, 5, 6, 0,
0, 0, 7, 0, 0, 3, 11, 5, 6, 0,
0, 16, 7, 17, 18, 19, 11, 20, 141, 0,
23, 16, 0, 17, 18, 19, 0, 20, 0, 92,
23, 92, 92, 92, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 96, 92, 96, 96,
96, 3, 0, 5, 6, 0, 0, 0, 7, 0,
76, 0, 11, 76, 96, 0, 0, 16, 0, 17,
18, 19, 0, 20, 0, 0, 23, 0, 76, 0,
0, 92, 92, 0, 3, 0, 71, 6, 0, 0,
82, 7, 82, 82, 82, 11, 0, 0, 96, 96,
16, 0, 17, 18, 19, 0, 20, 0, 82, 23,
0, 0, 76, 92, 0, 0, 3, 0, 125, 6,
0, 0, 0, 7, 0, 0, 0, 11, 70, 0,
96, 70, 16, 0, 17, 18, 19, 0, 20, 0,
0, 23, 82, 82, 76, 92, 70, 92, 92, 92,
0, 0, 0, 0, 0, 0, 0, 79, 0, 79,
79, 79, 64, 92, 65, 0, 0, 0, 0, 90,
0, 64, 0, 65, 82, 79, 0, 0, 0, 0,
70, 0, 110, 0, 64, 3, 65, 5, 6, 0,
0, 0, 7, 0, 0, 0, 11, 92, 92, 0,
64, 16, 65, 17, 18, 19, 0, 20, 0, 79,
23, 0, 70, 66, 80, 0, 80, 80, 80, 0,
0, 0, 66, 0, 0, 0, 114, 0, 64, 92,
65, 0, 80, 0, 0, 66, 0, 0, 0, 0,
77, 79, 77, 77, 77, 92, 92, 92, 0, 0,
106, 66, 92, 92, 92, 92, 0, 78, 77, 78,
78, 78, 96, 96, 96, 92, 80, 0, 0, 96,
96, 96, 96, 0, 0, 78, 76, 76, 76, 66,
0, 75, 96, 0, 75, 76, 0, 72, 0, 116,
72, 64, 77, 65, 0, 0, 76, 0, 80, 75,
74, 0, 0, 74, 0, 72, 82, 82, 82, 78,
0, 0, 0, 82, 0, 82, 0, 0, 74, 0,
0, 0, 0, 0, 77, 92, 82, 92, 92, 92,
0, 0, 0, 75, 0, 0, 117, 0, 64, 72,
65, 78, 66, 0, 70, 70, 70, 64, 0, 65,
0, 0, 74, 70, 0, 0, 0, 0, 0, 0,
0, 92, 92, 92, 70, 75, 0, 0, 92, 0,
92, 72, 0, 79, 79, 79, 0, 60, 92, 0,
79, 92, 79, 62, 74, 63, 60, 61, 0, 66,
0, 0, 62, 79, 63, 0, 0, 0, 66, 60,
61, 0, 0, 0, 0, 62, 0, 63, 0, 0,
0, 0, 0, 0, 0, 60, 61, 0, 0, 0,
0, 62, 0, 63, 0, 0, 0, 0, 0, 0,
80, 80, 80, 0, 0, 0, 0, 80, 0, 80,
0, 0, 0, 60, 61, 0, 0, 0, 0, 62,
80, 63, 0, 0, 0, 0, 77, 77, 77, 0,
0, 0, 0, 0, 0, 77, 0, 0, 0, 0,
0, 0, 0, 78, 78, 78, 77, 0, 0, 0,
0, 0, 78, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 78, 0, 0, 0, 75, 75, 75,
0, 0, 0, 72, 72, 72, 60, 61, 0, 0,
0, 0, 62, 0, 63, 0, 74, 75, 74, 0,
0, 0, 0, 72, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 74, 0, 0, 0,
39, 0, 92, 92, 0, 0, 0, 0, 92, 92,
92, 92, 0, 60, 61, 0, 0, 0, 0, 62,
0, 63, 60, 61, 55, 56, 0, 0, 62, 0,
63, 0, 0, 0, 0, 0, 0, 72, 75, 0,
0, 0, 0, 77, 78, 0, 81, 0, 83, 84,
0, 87, 0, 0, 0, 0, 0, 0, 0, 96,
97, 98, 99, 100, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 112, 0, 115,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 121, 122, 0, 0, 0, 0, 0, 123, 0,
75, 0, 126, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 87, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 75, 0, 0, 0, 112, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 112,
};
short yycheck[] = { 40,
59, 44, 94, 43, 45, 45, 59, 41, 59, 41,
44, 59, 44, 59, 59, 1, 59, 40, 59, 138,
262, 41, 40, 2, 265, 59, 267, 59, 262, 59,
40, 40, 40, 91, 40, 40, 155, 45, 59, 59,
44, 40, 59, 40, 278, 279, 280, 41, 40, 40,
44, 285, 59, 40, 94, 40, 262, 94, 41, 59,
44, 44, 44, 41, 41, 40, 125, 41, 91, 91,
45, 59, 125, 91, 125, 59, 41, 125, 57, 125,
125, 91, 123, 44, 70, 123, 59, 262, 41, 257,
93, 277, 281, 91, 41, 59, 41, 40, 93, 41,
41, 41, 45, 41, 59, 91, 41, 59, 41, 41,
7, -1, 148, 92, -1, 123, 118, -1, -1, 154,
-1, -1, -1, -1, -1, -1, 43, -1, 45, -1,
40, -1, -1, -1, -1, 45, 59, -1, -1, -1,
-1, 125, -1, -1, -1, -1, -1, -1, 123, -1,
125, -1, 131, -1, -1, -1, -1, -1, -1, -1,
-1, 140, -1, -1, -1, -1, 40, -1, -1, -1,
125, 45, 264, 152, -1, 161, -1, 94, -1, -1,
123, -1, -1, -1, -1, 164, -1, -1, -1, -1,
-1, -1, -1, -1, -1, 40, -1, -1, 257, -1,
45, -1, 125, -1, 257, 40, 257, -1, -1, 257,
45, 257, 257, 123, 257, 256, 257, -1, 277, 260,
261, 262, 263, 257, 264, 257, 267, 257, 269, 270,
271, 272, 273, 274, 275, 276, 257, 278, 279, 280,
257, 282, 283, 284, 285, 286, 287, 288, 256, 123,
257, 40, 260, 261, 262, 263, 45, 257, 93, 267,
268, 269, 270, 271, 272, 273, 274, 275, 276, 257,
278, 279, 280, 257, 282, 283, 284, 285, 286, 287,
288, 256, -1, -1, 40, 260, 261, 262, 263, 45,
-1, -1, 267, 277, 269, 270, 271, 272, 273, 274,
275, 276, 257, 278, 279, 280, -1, 282, 283, 284,
285, 286, 287, 288, 257, -1, 40, 260, 261, 262,
263, 45, 277, -1, 267, -1, 269, 270, 271, 272,
273, 274, 275, 276, 257, 278, 279, 280, -1, 282,
283, 284, 285, 286, 287, 288, 256, 264, -1, 266,
260, 261, 262, 263, 277, -1, -1, 267, -1, 269,
270, 271, 272, 273, 274, 275, 276, -1, 278, 279,
280, -1, 282, 283, 284, 285, 286, 287, 288, -1,
-1, -1, -1, -1, -1, 40, 260, 261, 262, 263,
45, -1, -1, 267, -1, 269, 270, 271, 272, 273,
274, 275, 276, -1, 278, 279, 280, -1, 282, 283,
284, 285, 286, 287, 288, 260, 261, 262, 263, -1,
-1, -1, 267, -1, -1, 260, 271, 262, 263, -1,
-1, 276, 267, 278, 279, 280, 271, 282, 93, -1,
285, 276, -1, 278, 279, 280, -1, 282, -1, 41,
285, 43, 44, 45, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, 41, 59, 43, 44,
45, 260, -1, 262, 263, -1, -1, -1, 267, -1,
41, -1, 271, 44, 59, -1, -1, 276, -1, 278,
279, 280, -1, 282, -1, -1, 285, -1, 59, -1,
-1, 93, 94, -1, 260, -1, 262, 263, -1, -1,
41, 267, 43, 44, 45, 271, -1, -1, 93, 94,
276, -1, 278, 279, 280, -1, 282, -1, 59, 285,
-1, -1, 93, 125, -1, -1, 260, -1, 262, 263,
-1, -1, -1, 267, -1, -1, -1, 271, 41, -1,
125, 44, 276, -1, 278, 279, 280, -1, 282, -1,
-1, 285, 93, 94, 125, 41, 59, 43, 44, 45,
-1, -1, -1, -1, -1, -1, -1, 41, -1, 43,
44, 45, 43, 59, 45, -1, -1, -1, -1, 41,
-1, 43, -1, 45, 125, 59, -1, -1, -1, -1,
93, -1, 41, -1, 43, 260, 45, 262, 263, -1,
-1, -1, 267, -1, -1, -1, 271, 93, 94, -1,
43, 276, 45, 278, 279, 280, -1, 282, -1, 93,
285, -1, 125, 94, 41, -1, 43, 44, 45, -1,
-1, -1, 94, -1, -1, -1, 41, -1, 43, 125,
45, -1, 59, -1, -1, 94, -1, -1, -1, -1,
41, 125, 43, 44, 45, 257, 258, 259, -1, -1,
93, 94, 264, 265, 266, 267, -1, 41, 59, 43,
44, 45, 257, 258, 259, 277, 93, -1, -1, 264,
265, 266, 267, -1, -1, 59, 257, 258, 259, 94,
-1, 41, 277, -1, 44, 266, -1, 41, -1, 41,
44, 43, 93, 45, -1, -1, 277, -1, 125, 59,
41, -1, -1, 44, -1, 59, 257, 258, 259, 93,
-1, -1, -1, 264, -1, 266, -1, -1, 59, -1,
-1, -1, -1, -1, 125, 41, 277, 43, 44, 45,
-1, -1, -1, 93, -1, -1, 41, -1, 43, 93,
45, 125, 94, -1, 257, 258, 259, 43, -1, 45,
-1, -1, 93, 266, -1, -1, -1, -1, -1, -1,
-1, 257, 258, 259, 277, 125, -1, -1, 264, -1,
266, 125, -1, 257, 258, 259, -1, 258, 94, -1,
264, 277, 266, 264, 125, 266, 258, 259, -1, 94,
-1, -1, 264, 277, 266, -1, -1, -1, 94, 258,
259, -1, -1, -1, -1, 264, -1, 266, -1, -1,
-1, -1, -1, -1, -1, 258, 259, -1, -1, -1,
-1, 264, -1, 266, -1, -1, -1, -1, -1, -1,
257, 258, 259, -1, -1, -1, -1, 264, -1, 266,
-1, -1, -1, 258, 259, -1, -1, -1, -1, 264,
277, 266, -1, -1, -1, -1, 257, 258, 259, -1,
-1, -1, -1, -1, -1, 266, -1, -1, -1, -1,
-1, -1, -1, 257, 258, 259, 277, -1, -1, -1,
-1, -1, 266, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, 277, -1, -1, -1, 257, 258, 259,
-1, -1, -1, 257, 258, 259, 258, 259, -1, -1,
-1, -1, 264, -1, 266, -1, 257, 277, 259, -1,
-1, -1, -1, 277, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, 277, -1, -1, -1,
3, -1, 258, 259, -1, -1, -1, -1, 264, 265,
266, 267, -1, 258, 259, -1, -1, -1, -1, 264,
-1, 266, 258, 259, 27, 28, -1, -1, 264, -1,
266, -1, -1, -1, -1, -1, -1, 40, 41, -1,
-1, -1, -1, 46, 47, -1, 49, -1, 51, 52,
-1, 54, -1, -1, -1, -1, -1, -1, -1, 62,
63, 64, 65, 66, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, 80, -1, 82,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, 94, 95, -1, -1, -1, -1, -1, 101, -1,
103, -1, 105, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, 118, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, 134, -1, -1, -1, 138, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, 155,
};
#define YYFINAL 1
#ifndef YYDEBUG
#define YYDEBUG 0
#endif
#define YYMAXTOKEN 289
#if YYDEBUG
char *yyname[] = {
"end-of-file",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,"'('","')'",0,"'+'","','","'-'",0,0,0,0,0,0,0,0,0,0,0,0,0,"';'",0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'['",0,"']'","'^'",0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'{'",0,"'}'",0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,"NEWLINE","AND","OR","NOT","STRING","NAME","NUMBER","MUL_OP",
"ASSIGN_OP","REL_OP","INCR_DECR","Define","Break","Quit","Length","Return",
"For","If","While","Sqrt","Else","Scale","Ibase","Obase","Auto","Read",
"Warranty","Halt","Last","Continue","Print","Limits","UNARY_MINUS",
};
char *yyrule[] = {
"$accept : program",
"program :",
"program : program input_item",
"input_item : semicolon_list NEWLINE",
"input_item : function",
"input_item : error NEWLINE",
"semicolon_list :",
"semicolon_list : statement_or_error",
"semicolon_list : semicolon_list ';' statement_or_error",
"semicolon_list : semicolon_list ';'",
"statement_list :",
"statement_list : statement_or_error",
"statement_list : statement_list NEWLINE",
"statement_list : statement_list NEWLINE statement_or_error",
"statement_list : statement_list ';'",
"statement_list : statement_list ';' statement",
"statement_or_error : statement",
"statement_or_error : error statement",
"statement : Warranty",
"statement : Limits",
"statement : expression",
"statement : STRING",
"statement : Break",
"statement : Continue",
"statement : Quit",
"statement : Halt",
"statement : Return",
"statement : Return '(' return_expression ')'",
"$$1 :",
"$$2 :",
"$$3 :",
"$$4 :",
"statement : For $$1 '(' opt_expression ';' $$2 opt_expression ';' $$3 opt_expression ')' $$4 statement",
"$$5 :",
"statement : If '(' expression ')' $$5 statement opt_else",
"$$6 :",
"$$7 :",
"statement : While $$6 '(' expression $$7 ')' statement",
"statement : '{' statement_list '}'",
"$$8 :",
"statement : Print $$8 print_list",
"print_list : print_element",
"print_list : print_element ',' print_list",
"print_element : STRING",
"print_element : expression",
"opt_else :",
"$$9 :",
"opt_else : Else $$9 statement",
"$$10 :",
"function : Define NAME '(' opt_parameter_list ')' '{' NEWLINE opt_auto_define_list $$10 statement_list NEWLINE '}'",
"opt_parameter_list :",
"opt_parameter_list : define_list",
"opt_auto_define_list :",
"opt_auto_define_list : Auto define_list NEWLINE",
"opt_auto_define_list : Auto define_list ';'",
"define_list : NAME",
"define_list : NAME '[' ']'",
"define_list : define_list ',' NAME",
"define_list : define_list ',' NAME '[' ']'",
"opt_argument_list :",
"opt_argument_list : argument_list",
"argument_list : expression",
"argument_list : NAME '[' ']'",
"argument_list : argument_list ',' expression",
"argument_list : argument_list ',' NAME '[' ']'",
"opt_expression :",
"opt_expression : expression",
"return_expression :",
"return_expression : expression",
"$$11 :",
"expression : named_expression ASSIGN_OP $$11 expression",
"$$12 :",
"expression : expression AND $$12 expression",
"$$13 :",
"expression : expression OR $$13 expression",
"expression : NOT expression",
"expression : expression REL_OP expression",
"expression : expression '+' expression",
"expression : expression '-' expression",
"expression : expression MUL_OP expression",
"expression : expression '^' expression",
"expression : '-' expression",
"expression : named_expression",
"expression : NUMBER",
"expression : '(' expression ')'",
"expression : NAME '(' opt_argument_list ')'",
"expression : INCR_DECR named_expression",
"expression : named_expression INCR_DECR",
"expression : Length '(' expression ')'",
"expression : Sqrt '(' expression ')'",
"expression : Scale '(' expression ')'",
"expression : Read '(' ')'",
"named_expression : NAME",
"named_expression : NAME '[' expression ']'",
"named_expression : Ibase",
"named_expression : Obase",
"named_expression : Scale",
"named_expression : Last",
};
#endif
#define yyclearin (yychar=(-1))
#define yyerrok (yyerrflag=0)
#ifdef YYSTACKSIZE
#ifndef YYMAXDEPTH
#define YYMAXDEPTH YYSTACKSIZE
#endif
#else
#ifdef YYMAXDEPTH
#define YYSTACKSIZE YYMAXDEPTH
#else
#define YYSTACKSIZE 500
#define YYMAXDEPTH 500
#endif
#endif
int yydebug;
int yynerrs;
int yyerrflag;
int yychar;
short *yyssp;
YYSTYPE *yyvsp;
YYSTYPE yyval;
YYSTYPE yylval;
short yyss[YYSTACKSIZE];
YYSTYPE yyvs[YYSTACKSIZE];
#define yystacksize YYSTACKSIZE
#define YYABORT goto yyabort
#define YYACCEPT goto yyaccept
#define YYERROR goto yyerrlab
int
yyparse()
{
register int yym, yyn, yystate;
#if YYDEBUG
register char *yys;
extern char *getenv();
if (yys = getenv("YYDEBUG"))
{
yyn = *yys;
if (yyn >= '0' && yyn <= '9')
yydebug = yyn - '0';
}
#endif
yynerrs = 0;
yyerrflag = 0;
yychar = (-1);
yyssp = yyss;
yyvsp = yyvs;
*yyssp = yystate = 0;
yyloop:
if (yyn = yydefred[yystate]) goto yyreduce;
if (yychar < 0)
{
if ((yychar = yylex()) < 0) yychar = 0;
#if YYDEBUG
if (yydebug)
{
yys = 0;
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
if (!yys) yys = "illegal-symbol";
printf("yydebug: state %d, reading %d (%s)\n", yystate,
yychar, yys);
}
#endif
}
if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
{
#if YYDEBUG
if (yydebug)
printf("yydebug: state %d, shifting to state %d\n",
yystate, yytable[yyn]);
#endif
if (yyssp >= yyss + yystacksize - 1)
{
goto yyoverflow;
}
*++yyssp = yystate = yytable[yyn];
*++yyvsp = yylval;
yychar = (-1);
if (yyerrflag > 0) --yyerrflag;
goto yyloop;
}
if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
{
yyn = yytable[yyn];
goto yyreduce;
}
if (yyerrflag) goto yyinrecovery;
#ifdef lint
goto yynewerror;
#endif
yynewerror:
yyerror("syntax error");
#ifdef lint
goto yyerrlab;
#endif
yyerrlab:
++yynerrs;
yyinrecovery:
if (yyerrflag < 3)
{
yyerrflag = 3;
for (;;)
{
if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)
{
#if YYDEBUG
if (yydebug)
printf("yydebug: state %d, error recovery shifting\
to state %d\n", *yyssp, yytable[yyn]);
#endif
if (yyssp >= yyss + yystacksize - 1)
{
goto yyoverflow;
}
*++yyssp = yystate = yytable[yyn];
*++yyvsp = yylval;
goto yyloop;
}
else
{
#if YYDEBUG
if (yydebug)
printf("yydebug: error recovery discarding state %d\n",
*yyssp);
#endif
if (yyssp <= yyss) goto yyabort;
--yyssp;
--yyvsp;
}
}
}
else
{
if (yychar == 0) goto yyabort;
#if YYDEBUG
if (yydebug)
{
yys = 0;
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
if (!yys) yys = "illegal-symbol";
printf("yydebug: state %d, error recovery discards token %d (%s)\n",
yystate, yychar, yys);
}
#endif
yychar = (-1);
goto yyloop;
}
yyreduce:
#if YYDEBUG
if (yydebug)
printf("yydebug: state %d, reducing by rule %d (%s)\n",
yystate, yyn, yyrule[yyn]);
#endif
yym = yylen[yyn];
yyval = yyvsp[1-yym];
switch (yyn)
{
case 1:
#line 106 "bc.y"
{
yyval.i_value = 0;
if (interactive)
{
printf ("%s\n", BC_VERSION);
welcome ();
}
}
break;
case 3:
#line 117 "bc.y"
{ run_code (); }
break;
case 4:
#line 119 "bc.y"
{ run_code (); }
break;
case 5:
#line 121 "bc.y"
{
yyerrok;
init_gen ();
}
break;
case 6:
#line 127 "bc.y"
{ yyval.i_value = 0; }
break;
case 10:
#line 133 "bc.y"
{ yyval.i_value = 0; }
break;
case 17:
#line 142 "bc.y"
{ yyval.i_value = yyvsp[0].i_value; }
break;
case 18:
#line 145 "bc.y"
{ warranty (""); }
break;
case 19:
#line 147 "bc.y"
{ limits (); }
break;
case 20:
#line 149 "bc.y"
{
if (yyvsp[0].i_value & 2)
warn ("comparison in expression");
if (yyvsp[0].i_value & 1)
generate ("W");
else
generate ("p");
}
break;
case 21:
#line 158 "bc.y"
{
yyval.i_value = 0;
generate ("w");
generate (yyvsp[0].s_value);
free (yyvsp[0].s_value);
}
break;
case 22:
#line 165 "bc.y"
{
if (break_label == 0)
yyerror ("Break outside a for/while");
else
{
sprintf (genstr, "J%1d:", break_label);
generate (genstr);
}
}
break;
case 23:
#line 175 "bc.y"
{
warn ("Continue statement");
if (continue_label == 0)
yyerror ("Continue outside a for");
else
{
sprintf (genstr, "J%1d:", continue_label);
generate (genstr);
}
}
break;
case 24:
#line 186 "bc.y"
{ exit (0); }
break;
case 25:
#line 188 "bc.y"
{ generate ("h"); }
break;
case 26:
#line 190 "bc.y"
{ generate ("0R"); }
break;
case 27:
#line 192 "bc.y"
{ generate ("R"); }
break;
case 28:
#line 194 "bc.y"
{
yyvsp[0].i_value = break_label;
break_label = next_label++;
}
break;
case 29:
#line 199 "bc.y"
{
if (yyvsp[-1].i_value > 1)
warn ("Comparison in first for expression");
yyvsp[-1].i_value = next_label++;
if (yyvsp[-1].i_value < 0)
sprintf (genstr, "N%1d:", yyvsp[-1].i_value);
else
sprintf (genstr, "pN%1d:", yyvsp[-1].i_value);
generate (genstr);
}
break;
case 30:
#line 210 "bc.y"
{
if (yyvsp[-1].i_value < 0) generate ("1");
yyvsp[-1].i_value = next_label++;
sprintf (genstr, "B%1d:J%1d:", yyvsp[-1].i_value, break_label);
generate (genstr);
yyval.i_value = continue_label;
continue_label = next_label++;
sprintf (genstr, "N%1d:", continue_label);
generate (genstr);
}
break;
case 31:
#line 221 "bc.y"
{
if (yyvsp[-1].i_value > 1)
warn ("Comparison in third for expression");
if (yyvsp[-1].i_value < 0)
sprintf (genstr, "J%1d:N%1d:", yyvsp[-7].i_value, yyvsp[-4].i_value);
else
sprintf (genstr, "pJ%1d:N%1d:", yyvsp[-7].i_value, yyvsp[-4].i_value);
generate (genstr);
}
break;
case 32:
#line 231 "bc.y"
{
sprintf (genstr, "J%1d:N%1d:",
continue_label, break_label);
generate (genstr);
break_label = yyvsp[-12].i_value;
continue_label = yyvsp[-4].i_value;
}
break;
case 33:
#line 239 "bc.y"
{
yyvsp[-1].i_value = if_label;
if_label = next_label++;
sprintf (genstr, "Z%1d:", if_label);
generate (genstr);
}
break;
case 34:
#line 246 "bc.y"
{
sprintf (genstr, "N%1d:", if_label);
generate (genstr);
if_label = yyvsp[-4].i_value;
}
break;
case 35:
#line 252 "bc.y"
{
yyvsp[0].i_value = next_label++;
sprintf (genstr, "N%1d:", yyvsp[0].i_value);
generate (genstr);
}
break;
case 36:
#line 258 "bc.y"
{
yyvsp[0].i_value = break_label;
break_label = next_label++;
sprintf (genstr, "Z%1d:", break_label);
generate (genstr);
}
break;
case 37:
#line 265 "bc.y"
{
sprintf (genstr, "J%1d:N%1d:", yyvsp[-6].i_value, break_label);
generate (genstr);
break_label = yyvsp[-3].i_value;
}
break;
case 38:
#line 271 "bc.y"
{ yyval.i_value = 0; }
break;
case 39:
#line 273 "bc.y"
{ warn ("print statement"); }
break;
case 43:
#line 280 "bc.y"
{
generate ("O");
generate (yyvsp[0].s_value);
free (yyvsp[0].s_value);
}
break;
case 44:
#line 286 "bc.y"
{ generate ("P"); }
break;
case 46:
#line 290 "bc.y"
{
warn ("else clause in if statement");
yyvsp[0].i_value = next_label++;
sprintf (genstr, "J%d:N%1d:", yyvsp[0].i_value, if_label);
generate (genstr);
if_label = yyvsp[0].i_value;
}
break;
case 48:
#line 300 "bc.y"
{
/* Check auto list against parameter list? */
check_params (yyvsp[-4].a_value,yyvsp[0].a_value);
sprintf (genstr, "F%d,%s.%s[", lookup(yyvsp[-6].s_value,FUNCT),
arg_str (yyvsp[-4].a_value,TRUE), arg_str (yyvsp[0].a_value,TRUE));
generate (genstr);
free_args (yyvsp[-4].a_value);
free_args (yyvsp[0].a_value);
yyvsp[-7].i_value = next_label;
next_label = 0;
}
break;
case 49:
#line 312 "bc.y"
{
generate ("0R]");
next_label = yyvsp[-11].i_value;
}
break;
case 50:
#line 318 "bc.y"
{ yyval.a_value = NULL; }
break;
case 52:
#line 322 "bc.y"
{ yyval.a_value = NULL; }
break;
case 53:
#line 324 "bc.y"
{ yyval.a_value = yyvsp[-1].a_value; }
break;
case 54:
#line 326 "bc.y"
{ yyval.a_value = yyvsp[-1].a_value; }
break;
case 55:
#line 329 "bc.y"
{ yyval.a_value = nextarg (NULL, lookup (yyvsp[0].s_value,SIMPLE)); }
break;
case 56:
#line 331 "bc.y"
{ yyval.a_value = nextarg (NULL, lookup (yyvsp[-2].s_value,ARRAY)); }
break;
case 57:
#line 333 "bc.y"
{ yyval.a_value = nextarg (yyvsp[-2].a_value, lookup (yyvsp[0].s_value,SIMPLE)); }
break;
case 58:
#line 335 "bc.y"
{ yyval.a_value = nextarg (yyvsp[-4].a_value, lookup (yyvsp[-2].s_value,ARRAY)); }
break;
case 59:
#line 338 "bc.y"
{ yyval.a_value = NULL; }
break;
case 61:
#line 342 "bc.y"
{
if (yyvsp[0].i_value > 1) warn ("comparison in argument");
yyval.a_value = nextarg (NULL,0);
}
break;
case 62:
#line 347 "bc.y"
{
sprintf (genstr, "K%d:", -lookup (yyvsp[-2].s_value,ARRAY));
generate (genstr);
yyval.a_value = nextarg (NULL,1);
}
break;
case 63:
#line 353 "bc.y"
{
if (yyvsp[0].i_value > 1) warn ("comparison in argument");
yyval.a_value = nextarg (yyvsp[-2].a_value,0);
}
break;
case 64:
#line 358 "bc.y"
{
sprintf (genstr, "K%d:", -lookup (yyvsp[-2].s_value,ARRAY));
generate (genstr);
yyval.a_value = nextarg (yyvsp[-4].a_value,1);
}
break;
case 65:
#line 365 "bc.y"
{
yyval.i_value = -1;
warn ("Missing expression in for statement");
}
break;
case 67:
#line 372 "bc.y"
{
yyval.i_value = 0;
generate ("0");
}
break;
case 68:
#line 377 "bc.y"
{
if (yyvsp[0].i_value > 1)
warn ("comparison in return expresion");
}
break;
case 69:
#line 383 "bc.y"
{
if (yyvsp[0].c_value != '=')
{
if (yyvsp[-1].i_value < 0)
sprintf (genstr, "DL%d:", -yyvsp[-1].i_value);
else
sprintf (genstr, "l%d:", yyvsp[-1].i_value);
generate (genstr);
}
}
break;
case 70:
#line 394 "bc.y"
{
if (yyvsp[0].i_value > 1) warn("comparison in assignment");
if (yyvsp[-2].c_value != '=')
{
sprintf (genstr, "%c", yyvsp[-2].c_value);
generate (genstr);
}
if (yyvsp[-3].i_value < 0)
sprintf (genstr, "S%d:", -yyvsp[-3].i_value);
else
sprintf (genstr, "s%d:", yyvsp[-3].i_value);
generate (genstr);
yyval.i_value = 0;
}
break;
case 71:
#line 410 "bc.y"
{
warn("&& operator");
yyvsp[0].i_value = next_label++;
sprintf (genstr, "DZ%d:p", yyvsp[0].i_value);
generate (genstr);
}
break;
case 72:
#line 417 "bc.y"
{
sprintf (genstr, "DZ%d:p1N%d:", yyvsp[-2].i_value, yyvsp[-2].i_value);
generate (genstr);
yyval.i_value = yyvsp[-3].i_value | yyvsp[0].i_value;
}
break;
case 73:
#line 423 "bc.y"
{
warn("|| operator");
yyvsp[0].i_value = next_label++;
sprintf (genstr, "B%d:", yyvsp[0].i_value);
generate (genstr);
}
break;
case 74:
#line 430 "bc.y"
{
int tmplab;
tmplab = next_label++;
sprintf (genstr, "B%d:0J%d:N%d:1N%d:",
yyvsp[-2].i_value, tmplab, yyvsp[-2].i_value, tmplab);
generate (genstr);
yyval.i_value = yyvsp[-3].i_value | yyvsp[0].i_value;
}
break;
case 75:
#line 439 "bc.y"
{
yyval.i_value = yyvsp[0].i_value;
warn("! operator");
generate ("!");
}
break;
case 76:
#line 445 "bc.y"
{
yyval.i_value = 3;
switch (*(yyvsp[-1].s_value))
{
case '=':
generate ("=");
break;
case '!':
generate ("#");
break;
case '<':
if (yyvsp[-1].s_value[1] == '=')
generate ("{");
else
generate ("<");
break;
case '>':
if (yyvsp[-1].s_value[1] == '=')
generate ("}");
else
generate (">");
break;
}
}
break;
case 77:
#line 473 "bc.y"
{
generate ("+");
yyval.i_value = yyvsp[-2].i_value | yyvsp[0].i_value;
}
break;
case 78:
#line 478 "bc.y"
{
generate ("-");
yyval.i_value = yyvsp[-2].i_value | yyvsp[0].i_value;
}
break;
case 79:
#line 483 "bc.y"
{
genstr[0] = yyvsp[-1].c_value;
genstr[1] = 0;
generate (genstr);
yyval.i_value = yyvsp[-2].i_value | yyvsp[0].i_value;
}
break;
case 80:
#line 490 "bc.y"
{
generate ("^");
yyval.i_value = yyvsp[-2].i_value | yyvsp[0].i_value;
}
break;
case 81:
#line 495 "bc.y"
{
generate ("n");
yyval.i_value = yyvsp[0].i_value;
}
break;
case 82:
#line 500 "bc.y"
{
yyval.i_value = 1;
if (yyvsp[0].i_value < 0)
sprintf (genstr, "L%d:", -yyvsp[0].i_value);
else
sprintf (genstr, "l%d:", yyvsp[0].i_value);
generate (genstr);
}
break;
case 83:
#line 509 "bc.y"
{
int len = strlen(yyvsp[0].s_value);
yyval.i_value = 1;
if (len == 1 && *yyvsp[0].s_value == '0')
generate ("0");
else if (len == 1 && *yyvsp[0].s_value == '1')
generate ("1");
else
{
generate ("K");
generate (yyvsp[0].s_value);
generate (":");
}
free (yyvsp[0].s_value);
}
break;
case 84:
#line 525 "bc.y"
{ yyval.i_value = yyvsp[-1].i_value | 1; }
break;
case 85:
#line 527 "bc.y"
{
yyval.i_value = 1;
if (yyvsp[-1].a_value != NULL)
{
sprintf (genstr, "C%d,%s:",
lookup (yyvsp[-3].s_value,FUNCT),
arg_str (yyvsp[-1].a_value,FALSE));
free_args (yyvsp[-1].a_value);
}
else
{
sprintf (genstr, "C%d:", lookup (yyvsp[-3].s_value,FUNCT));
}
generate (genstr);
}
break;
case 86:
#line 543 "bc.y"
{
yyval.i_value = 1;
if (yyvsp[0].i_value < 0)
{
if (yyvsp[-1].c_value == '+')
sprintf (genstr, "DA%d:L%d:", -yyvsp[0].i_value, -yyvsp[0].i_value);
else
sprintf (genstr, "DM%d:L%d:", -yyvsp[0].i_value, -yyvsp[0].i_value);
}
else
{
if (yyvsp[-1].c_value == '+')
sprintf (genstr, "i%d:l%d:", yyvsp[0].i_value, yyvsp[0].i_value);
else
sprintf (genstr, "d%d:l%d:", yyvsp[0].i_value, yyvsp[0].i_value);
}
generate (genstr);
}
break;
case 87:
#line 562 "bc.y"
{
yyval.i_value = 1;
if (yyvsp[-1].i_value < 0)
{
sprintf (genstr, "DL%d:x", -yyvsp[-1].i_value);
generate (genstr);
if (yyvsp[0].c_value == '+')
sprintf (genstr, "A%d:", -yyvsp[-1].i_value);
else
sprintf (genstr, "M%d:", -yyvsp[-1].i_value);
}
else
{
sprintf (genstr, "l%d:", yyvsp[-1].i_value);
generate (genstr);
if (yyvsp[0].c_value == '+')
sprintf (genstr, "i%d:", yyvsp[-1].i_value);
else
sprintf (genstr, "d%d:", yyvsp[-1].i_value);
}
generate (genstr);
}
break;
case 88:
#line 585 "bc.y"
{ generate ("cL"); yyval.i_value = 1;}
break;
case 89:
#line 587 "bc.y"
{ generate ("cR"); yyval.i_value = 1;}
break;
case 90:
#line 589 "bc.y"
{ generate ("cS"); yyval.i_value = 1;}
break;
case 91:
#line 591 "bc.y"
{
warn ("read function");
generate ("cI"); yyval.i_value = 1;
}
break;
case 92:
#line 597 "bc.y"
{ yyval.i_value = lookup(yyvsp[0].s_value,SIMPLE); }
break;
case 93:
#line 599 "bc.y"
{
if (yyvsp[-1].i_value > 1) warn("comparison in subscript");
yyval.i_value = lookup(yyvsp[-3].s_value,ARRAY);
}
break;
case 94:
#line 604 "bc.y"
{ yyval.i_value = 0; }
break;
case 95:
#line 606 "bc.y"
{ yyval.i_value = 1; }
break;
case 96:
#line 608 "bc.y"
{ yyval.i_value = 2; }
break;
case 97:
#line 610 "bc.y"
{ yyval.i_value = 3; }
break;
#line 1314 "y.tab.c"
}
yyssp -= yym;
yystate = *yyssp;
yyvsp -= yym;
yym = yylhs[yyn];
if (yystate == 0 && yym == 0)
{
#if YYDEBUG
if (yydebug)
printf("yydebug: after reduction, shifting from state 0 to\
state %d\n", YYFINAL);
#endif
yystate = YYFINAL;
*++yyssp = YYFINAL;
*++yyvsp = yyval;
if (yychar < 0)
{
if ((yychar = yylex()) < 0) yychar = 0;
#if YYDEBUG
if (yydebug)
{
yys = 0;
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
if (!yys) yys = "illegal-symbol";
printf("yydebug: state %d, reading %d (%s)\n",
YYFINAL, yychar, yys);
}
#endif
}
if (yychar == 0) goto yyaccept;
goto yyloop;
}
if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == yystate)
yystate = yytable[yyn];
else
yystate = yydgoto[yym];
#if YYDEBUG
if (yydebug)
printf("yydebug: after reduction, shifting from state %d \
to state %d\n", *yyssp, yystate);
#endif
if (yyssp >= yyss + yystacksize - 1)
{
goto yyoverflow;
}
*++yyssp = yystate;
*++yyvsp = yyval;
goto yyloop;
yyoverflow:
yyerror("yacc stack overflow");
yyabort:
return (1);
yyaccept:
return (0);
}
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