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1 | # Simple calculator. -*- Autotest -*- | |
2 | ||
3 | # Copyright (C) 2000-2011 Free Software Foundation, Inc. | |
4 | ||
5 | # This program is free software: you can redistribute it and/or modify | |
6 | # it under the terms of the GNU General Public License as published by | |
7 | # the Free Software Foundation, either version 3 of the License, or | |
8 | # (at your option) any later version. | |
9 | # | |
10 | # This program is distributed in the hope that it will be useful, | |
11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | # GNU General Public License for more details. | |
14 | # | |
15 | # You should have received a copy of the GNU General Public License | |
16 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
17 | ||
18 | ## ---------------------------------------------------- ## | |
19 | ## Compile the grammar described in the documentation. ## | |
20 | ## ---------------------------------------------------- ## | |
21 | ||
22 | ||
23 | # ------------------------- # | |
24 | # Helping Autotest macros. # | |
25 | # ------------------------- # | |
26 | ||
27 | ||
28 | # _AT_DATA_CALC_Y($1, $2, $3, [BISON-DIRECTIVES]) | |
29 | # ----------------------------------------------- | |
30 | # Produce `calc.y' and, if %defines was specified, `calc-lex.c' or | |
31 | # `calc-lex.cc'. | |
32 | # | |
33 | # Don't call this macro directly, because it contains some occurrences | |
34 | # of `$1' etc. which will be interpreted by m4. So you should call it | |
35 | # with $1, $2, and $3 as arguments, which is what AT_DATA_CALC_Y does. | |
36 | m4_define([_AT_DATA_CALC_Y], | |
37 | [m4_if([$1$2$3], $[1]$[2]$[3], [], | |
38 | [m4_fatal([$0: Invalid arguments: $@])])dnl | |
39 | m4_pushdef([AT_CALC_LEX], | |
40 | [[#include <ctype.h> | |
41 | ||
42 | int ]AT_NAME_PREFIX[lex (]AT_LEX_FORMALS[); | |
43 | static int get_char (]AT_LEX_FORMALS[); | |
44 | static void unget_char (]AT_LEX_PRE_FORMALS[ int c); | |
45 | ||
46 | ]AT_LOCATION_IF([ | |
47 | static YYLTYPE last_yylloc; | |
48 | ])[ | |
49 | static int | |
50 | get_char (]AT_LEX_FORMALS[) | |
51 | { | |
52 | int res = getc (input); | |
53 | ]AT_USE_LEX_ARGS[; | |
54 | ]AT_LOCATION_IF([ | |
55 | last_yylloc = AT_LOC; | |
56 | if (res == '\n') | |
57 | { | |
58 | AT_LOC_LAST_LINE++; | |
59 | AT_LOC_LAST_COLUMN = 1; | |
60 | } | |
61 | else | |
62 | AT_LOC_LAST_COLUMN++; | |
63 | ])[ | |
64 | return res; | |
65 | } | |
66 | ||
67 | static void | |
68 | unget_char (]AT_LEX_PRE_FORMALS[ int c) | |
69 | { | |
70 | ]AT_USE_LEX_ARGS[; | |
71 | ]AT_LOCATION_IF([ | |
72 | /* Wrong when C == `\n'. */ | |
73 | AT_LOC = last_yylloc; | |
74 | ])[ | |
75 | ungetc (c, input); | |
76 | } | |
77 | ||
78 | static int | |
79 | read_signed_integer (]AT_LEX_FORMALS[) | |
80 | { | |
81 | int c = get_char (]AT_LEX_ARGS[); | |
82 | int sign = 1; | |
83 | int n = 0; | |
84 | ||
85 | ]AT_USE_LEX_ARGS[; | |
86 | if (c == '-') | |
87 | { | |
88 | c = get_char (]AT_LEX_ARGS[); | |
89 | sign = -1; | |
90 | } | |
91 | ||
92 | while (isdigit (c)) | |
93 | { | |
94 | n = 10 * n + (c - '0'); | |
95 | c = get_char (]AT_LEX_ARGS[); | |
96 | } | |
97 | ||
98 | unget_char (]AT_LEX_PRE_ARGS[ c); | |
99 | ||
100 | return sign * n; | |
101 | } | |
102 | ||
103 | ||
104 | /*---------------------------------------------------------------. | |
105 | | Lexical analyzer returns an integer on the stack and the token | | |
106 | | NUM, or the ASCII character read if not a number. Skips all | | |
107 | | blanks and tabs, returns 0 for EOF. | | |
108 | `---------------------------------------------------------------*/ | |
109 | ||
110 | int | |
111 | ]AT_NAME_PREFIX[lex (]AT_LEX_FORMALS[) | |
112 | { | |
113 | static int init = 1; | |
114 | int c; | |
115 | ||
116 | if (init) | |
117 | { | |
118 | init = 0; | |
119 | ]AT_LOCATION_IF([ | |
120 | AT_LOC_LAST_COLUMN = 1; | |
121 | AT_LOC_LAST_LINE = 1; | |
122 | ])[ | |
123 | } | |
124 | ||
125 | /* Skip current token, then white spaces. */ | |
126 | do | |
127 | { | |
128 | ]AT_LOCATION_IF( | |
129 | [ AT_LOC_FIRST_COLUMN = AT_LOC_LAST_COLUMN; | |
130 | AT_LOC_FIRST_LINE = AT_LOC_LAST_LINE; | |
131 | ])[ | |
132 | } | |
133 | while ((c = get_char (]AT_LEX_ARGS[)) == ' ' || c == '\t'); | |
134 | ||
135 | /* process numbers */ | |
136 | if (c == '.' || isdigit (c)) | |
137 | { | |
138 | unget_char (]AT_LEX_PRE_ARGS[ c); | |
139 | ]AT_VAL[.ival = read_signed_integer (]AT_LEX_ARGS[); | |
140 | return NUM; | |
141 | } | |
142 | ||
143 | /* Return end-of-file. */ | |
144 | if (c == EOF) | |
145 | return CALC_EOF; | |
146 | ||
147 | /* Return single chars. */ | |
148 | return c; | |
149 | } | |
150 | ]]) | |
151 | ||
152 | AT_DATA_GRAMMAR([calc.y], | |
153 | [[/* Infix notation calculator--calc */ | |
154 | ]$4 | |
155 | AT_SKEL_CC_IF( | |
156 | [%define global_tokens_and_yystype])[ | |
157 | %code requires | |
158 | { | |
159 | ]AT_LOCATION_TYPE_IF([[ | |
160 | # include <iostream> | |
161 | struct Point | |
162 | { | |
163 | int l; | |
164 | int c; | |
165 | }; | |
166 | ||
167 | struct Span | |
168 | { | |
169 | Point first; | |
170 | Point last; | |
171 | }; | |
172 | ||
173 | # define YYLLOC_DEFAULT(Current, Rhs, N) \ | |
174 | do \ | |
175 | if (N) \ | |
176 | { \ | |
177 | (Current).first = YYRHSLOC (Rhs, 1).first; \ | |
178 | (Current).last = YYRHSLOC (Rhs, N).last; \ | |
179 | } \ | |
180 | else \ | |
181 | { \ | |
182 | (Current).first = (Current).last = YYRHSLOC (Rhs, 0).last; \ | |
183 | } \ | |
184 | while (false) | |
185 | ||
186 | ]])[ | |
187 | /* Exercise pre-prologue dependency to %union. */ | |
188 | typedef int semantic_value; | |
189 | } | |
190 | ||
191 | /* Exercise %union. */ | |
192 | %union | |
193 | { | |
194 | semantic_value ival; | |
195 | }; | |
196 | ||
197 | %code provides | |
198 | { | |
199 | #include <stdio.h> | |
200 | /* The input. */ | |
201 | extern FILE *input;]AT_SKEL_CC_IF([[ | |
202 | #ifndef YYLTYPE | |
203 | # define YYLTYPE ]AT_NAME_PREFIX[::parser::location_type | |
204 | #endif | |
205 | ]])[ | |
206 | } | |
207 | ||
208 | %code | |
209 | { | |
210 | #include <stdlib.h> | |
211 | #include <string.h> | |
212 | #if HAVE_UNISTD_H | |
213 | # include <unistd.h> | |
214 | #else | |
215 | # undef alarm | |
216 | # define alarm(seconds) /* empty */ | |
217 | #endif | |
218 | #define USE(Var) | |
219 | ||
220 | FILE *input; | |
221 | static semantic_value global_result = 0; | |
222 | static int global_count = 0; | |
223 | static int power (int base, int exponent); | |
224 | ||
225 | ]AT_SKEL_CC_IF(, | |
226 | [/* yyerror receives the location if: | |
227 | - %location & %pure & %glr | |
228 | - %location & %pure & %yacc & %parse-param. */ | |
229 | static void yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ]) | |
230 | AT_PARAM_IF([semantic_value *result, int *count, ]) | |
231 | const char *s | |
232 | );])[ | |
233 | int yylex (]AT_LEX_FORMALS[); | |
234 | } | |
235 | ||
236 | ]AT_SKEL_CC_IF([AT_LOCATION_TYPE_IF([], [ | |
237 | /* The lalr1.cc skeleton, for backward compatibility, defines | |
238 | a constructor for position that initializes the filename. The | |
239 | glr.cc skeleton does not (and in fact cannot: location/position | |
240 | are stored in a union, from which objects with constructors are | |
241 | excluded in C++. */ | |
242 | %initial-action { | |
243 | @$.initialize (0); | |
244 | } | |
245 | ])])[ | |
246 | ||
247 | /* Bison Declarations */ | |
248 | %token CALC_EOF 0 "end of input" | |
249 | %token <ival> NUM "number" | |
250 | %type <ival> exp | |
251 | ||
252 | %nonassoc '=' /* comparison */ | |
253 | %left '-' '+' | |
254 | %left '*' '/' | |
255 | %left NEG /* negation--unary minus */ | |
256 | %right '^' /* exponentiation */ | |
257 | ||
258 | /* Grammar follows */ | |
259 | %% | |
260 | input: | |
261 | line | |
262 | | input line { ]AT_PARAM_IF([++*count; ++global_count;])[ } | |
263 | ; | |
264 | ||
265 | line: | |
266 | '\n' | |
267 | | exp '\n' { ]AT_PARAM_IF([*result = global_result = $1], [USE ($1)])[; } | |
268 | ; | |
269 | ||
270 | exp: | |
271 | NUM { $$ = $1; } | |
272 | | exp '=' exp | |
273 | { | |
274 | if ($1 != $3) | |
275 | fprintf (stderr, "calc: error: %d != %d\n", $1, $3); | |
276 | $$ = $1; | |
277 | } | |
278 | | exp '+' exp { $$ = $1 + $3; } | |
279 | | exp '-' exp { $$ = $1 - $3; } | |
280 | | exp '*' exp { $$ = $1 * $3; } | |
281 | | exp '/' exp { $$ = $1 / $3; } | |
282 | | '-' exp %prec NEG { $$ = -$2; } | |
283 | | exp '^' exp { $$ = power ($1, $3); } | |
284 | | '(' exp ')' { $$ = $2; } | |
285 | | '(' error ')' { $$ = 1111; yyerrok; } | |
286 | | '!' { $$ = 0; YYERROR; } | |
287 | | '-' error { $$ = 0; YYERROR; } | |
288 | ; | |
289 | %% | |
290 | ||
291 | ]AT_SKEL_CC_IF( | |
292 | [AT_LOCATION_TYPE_IF([[ | |
293 | std::ostream& | |
294 | operator<< (std::ostream& o, const Span& s) | |
295 | { | |
296 | o << s.first.l << '.' << s.first.c; | |
297 | if (s.first.l != s.last.l) | |
298 | o << '-' << s.last.l << '.' << s.last.c - 1; | |
299 | else if (s.first.c != s.last.c - 1) | |
300 | o << '-' << s.last.c - 1; | |
301 | return o; | |
302 | } | |
303 | ]]) | |
304 | ||
305 | /* A C++ error reporting function. */ | |
306 | void | |
307 | AT_NAME_PREFIX::parser::error (const location_type& l, const std::string& m) | |
308 | { | |
309 | (void) l; | |
310 | std::cerr << AT_LOCATION_IF([l << ": " << ])m << std::endl; | |
311 | } | |
312 | ||
313 | /* A C++ yyparse that simulates the C signature. */ | |
314 | int | |
315 | yyparse (AT_PARAM_IF([semantic_value *result, int *count])) | |
316 | { | |
317 | AT_NAME_PREFIX::parser parser[]AT_PARAM_IF([ (result, count)]); | |
318 | #if YYDEBUG | |
319 | parser.set_debug_level (1); | |
320 | #endif | |
321 | return parser.parse (); | |
322 | } | |
323 | ], | |
324 | [/* A C error reporting function. */ | |
325 | static void | |
326 | yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ]) | |
327 | AT_PARAM_IF([semantic_value *result, int *count, ]) | |
328 | const char *s) | |
329 | { | |
330 | AT_PARAM_IF([(void) result; (void) count;]) | |
331 | AT_YYERROR_SEES_LOC_IF([ | |
332 | fprintf (stderr, "%d.%d", | |
333 | AT_LOC_FIRST_LINE, AT_LOC_FIRST_COLUMN); | |
334 | if (AT_LOC_FIRST_LINE != AT_LOC_LAST_LINE) | |
335 | fprintf (stderr, "-%d.%d", | |
336 | AT_LOC_LAST_LINE, AT_LOC_LAST_COLUMN - 1); | |
337 | else if (AT_LOC_FIRST_COLUMN != AT_LOC_LAST_COLUMN - 1) | |
338 | fprintf (stderr, "-%d", | |
339 | AT_LOC_LAST_COLUMN - 1); | |
340 | fprintf (stderr, ": ");]) | |
341 | fprintf (stderr, "%s\n", s); | |
342 | }])[ | |
343 | ||
344 | ]AT_DEFINES_IF(, [AT_CALC_LEX])[ | |
345 | ||
346 | static int | |
347 | power (int base, int exponent) | |
348 | { | |
349 | int res = 1; | |
350 | if (exponent < 0) | |
351 | exit (3); | |
352 | for (/* Niente */; exponent; --exponent) | |
353 | res *= base; | |
354 | return res; | |
355 | } | |
356 | ||
357 | ||
358 | /* A C main function. */ | |
359 | int | |
360 | main (int argc, const char **argv) | |
361 | { | |
362 | semantic_value result = 0; | |
363 | int count = 0; | |
364 | int status; | |
365 | ||
366 | /* This used to be alarm (10), but that isn't enough time for | |
367 | a July 1995 vintage DEC Alphastation 200 4/100 system, | |
368 | according to Nelson H. F. Beebe. 100 seconds is enough. */ | |
369 | alarm (100); | |
370 | ||
371 | if (argc == 2) | |
372 | input = fopen (argv[1], "r"); | |
373 | else | |
374 | input = stdin; | |
375 | ||
376 | if (!input) | |
377 | { | |
378 | perror (argv[1]); | |
379 | return 3; | |
380 | } | |
381 | ||
382 | ]AT_SKEL_CC_IF([], [m4_bmatch([$4], [%debug], | |
383 | [ yydebug = 1;])])[ | |
384 | status = yyparse (]AT_PARAM_IF([[&result, &count]])[); | |
385 | if (fclose (input)) | |
386 | perror ("fclose"); | |
387 | if (global_result != result) | |
388 | abort (); | |
389 | if (global_count != count) | |
390 | abort (); | |
391 | return status; | |
392 | } | |
393 | ]]) | |
394 | AT_DEFINES_IF([AT_DATA_SOURCE([[calc-lex.c]AT_SKEL_CC_IF([[c]])], | |
395 | [[#include "calc.h]AT_SKEL_CC_IF([[h]])[" | |
396 | ||
397 | ]AT_CALC_LEX])]) | |
398 | m4_popdef([AT_CALC_LEX]) | |
399 | ])# _AT_DATA_CALC_Y | |
400 | ||
401 | ||
402 | # AT_DATA_CALC_Y([BISON-OPTIONS]) | |
403 | # ------------------------------- | |
404 | # Produce `calc.y' and, if %defines was specified, `calc-lex.c' or | |
405 | # `calc-lex.cc'. | |
406 | m4_define([AT_DATA_CALC_Y], | |
407 | [_AT_DATA_CALC_Y($[1], $[2], $[3], [$1]) | |
408 | ]) | |
409 | ||
410 | ||
411 | ||
412 | # _AT_CHECK_CALC(BISON-OPTIONS, INPUT, [NUM-STDERR-LINES]) | |
413 | # -------------------------------------------------------- | |
414 | # Run `calc' on INPUT and expect no STDOUT nor STDERR. | |
415 | # | |
416 | # If BISON-OPTIONS contains `%debug' but not `%glr-parser', then | |
417 | # | |
418 | # NUM-STDERR-LINES is the number of expected lines on stderr. | |
419 | # Currently this is ignored, though, since the output format is fluctuating. | |
420 | # | |
421 | # We don't count GLR's traces yet, since its traces are somewhat | |
422 | # different from LALR's. | |
423 | m4_define([_AT_CHECK_CALC], | |
424 | [AT_DATA([[input]], | |
425 | [[$2 | |
426 | ]]) | |
427 | AT_PARSER_CHECK([./calc input], 0, [], [stderr]) | |
428 | ]) | |
429 | ||
430 | ||
431 | # _AT_CHECK_CALC_ERROR(BISON-OPTIONS, EXIT-STATUS, INPUT, | |
432 | # [NUM-STDERR-LINES], | |
433 | # [VERBOSE-AND-LOCATED-ERROR-MESSAGE]) | |
434 | # --------------------------------------------------------- | |
435 | # Run `calc' on INPUT, and expect a `syntax error' message. | |
436 | # | |
437 | # If INPUT starts with a slash, it is used as absolute input file name, | |
438 | # otherwise as contents. | |
439 | # | |
440 | # NUM-STDERR-LINES is the number of expected lines on stderr. | |
441 | # Currently this is ignored, though, since the output format is fluctuating. | |
442 | # | |
443 | # If BISON-OPTIONS contains `%location', then make sure the ERROR-LOCATION | |
444 | # is correctly output on stderr. | |
445 | # | |
446 | # If BISON-OPTIONS contains `%error-verbose', then make sure the | |
447 | # IF-YYERROR-VERBOSE message is properly output after `syntax error, ' | |
448 | # on STDERR. | |
449 | # | |
450 | # If BISON-OPTIONS contains `%debug' but not `%glr', then NUM-STDERR-LINES | |
451 | # is the number of expected lines on stderr. | |
452 | m4_define([_AT_CHECK_CALC_ERROR], | |
453 | [m4_bmatch([$3], [^/], | |
454 | [AT_PARSER_CHECK([./calc $3], $2, [], [stderr])], | |
455 | [AT_DATA([[input]], | |
456 | [[$3 | |
457 | ]]) | |
458 | AT_PARSER_CHECK([./calc input], $2, [], [stderr])]) | |
459 | ||
460 | # Normalize the observed and expected error messages, depending upon the | |
461 | # options. | |
462 | # 1. Remove the traces from observed. | |
463 | sed '/^Starting/d | |
464 | /^Entering/d | |
465 | /^Stack/d | |
466 | /^Reading/d | |
467 | /^Reducing/d | |
468 | /^Return/d | |
469 | /^Shifting/d | |
470 | /^state/d | |
471 | /^Cleanup:/d | |
472 | /^Error:/d | |
473 | /^Next/d | |
474 | /^Now/d | |
475 | /^Discarding/d | |
476 | / \$[[0-9$]]* = /d | |
477 | /^yydestructor:/d' stderr >at-stderr | |
478 | mv at-stderr stderr | |
479 | # 2. Create the reference error message. | |
480 | AT_DATA([[expout]], | |
481 | [$5 | |
482 | ]) | |
483 | # 3. If locations are not used, remove them. | |
484 | AT_YYERROR_SEES_LOC_IF([], | |
485 | [[sed 's/^[-0-9.]*: //' expout >at-expout | |
486 | mv at-expout expout]]) | |
487 | # 4. If error-verbose is not used, strip the`, unexpected....' part. | |
488 | m4_bmatch([$1], [%error-verbose], [], | |
489 | [[sed 's/syntax error, .*$/syntax error/' expout >at-expout | |
490 | mv at-expout expout]]) | |
491 | # 5. Check | |
492 | AT_CHECK([cat stderr], 0, [expout]) | |
493 | ]) | |
494 | ||
495 | ||
496 | # AT_CHECK_CALC([BISON-OPTIONS, [EXPECTED-TO-FAIL]]) | |
497 | # -------------------------------------------------- | |
498 | # Start a testing chunk which compiles `calc' grammar with | |
499 | # BISON-OPTIONS, and performs several tests over the parser. | |
500 | # However, if EXPECTED-TO-FAIL is nonempty, this test is expected to fail. | |
501 | m4_define([AT_CHECK_CALC], | |
502 | [# We use integers to avoid dependencies upon the precision of doubles. | |
503 | AT_SETUP([Calculator $1]) | |
504 | ||
505 | m4_ifval([$2], [AT_CHECK([exit 77])]) | |
506 | ||
507 | AT_BISON_OPTION_PUSHDEFS([$1]) | |
508 | ||
509 | AT_DATA_CALC_Y([$1]) | |
510 | AT_FULL_COMPILE([calc], [AT_DEFINES_IF([[lex]])]) | |
511 | ||
512 | # Test the priorities. | |
513 | _AT_CHECK_CALC([$1], | |
514 | [1 + 2 * 3 = 7 | |
515 | 1 + 2 * -3 = -5 | |
516 | ||
517 | -1^2 = -1 | |
518 | (-1)^2 = 1 | |
519 | ||
520 | ---1 = -1 | |
521 | ||
522 | 1 - 2 - 3 = -4 | |
523 | 1 - (2 - 3) = 2 | |
524 | ||
525 | 2^2^3 = 256 | |
526 | (2^2)^3 = 64], | |
527 | [842]) | |
528 | ||
529 | # Some syntax errors. | |
530 | _AT_CHECK_CALC_ERROR([$1], [1], [0 0], [15], | |
531 | [1.3: syntax error, unexpected number]) | |
532 | _AT_CHECK_CALC_ERROR([$1], [1], [1//2], [20], | |
533 | [1.3: syntax error, unexpected '/', expecting number or '-' or '(' or '!']) | |
534 | _AT_CHECK_CALC_ERROR([$1], [1], [error], [5], | |
535 | [1.1: syntax error, unexpected $undefined]) | |
536 | _AT_CHECK_CALC_ERROR([$1], [1], [1 = 2 = 3], [30], | |
537 | [1.7: syntax error, unexpected '=']) | |
538 | _AT_CHECK_CALC_ERROR([$1], [1], | |
539 | [ | |
540 | +1], | |
541 | [20], | |
542 | [2.1: syntax error, unexpected '+']) | |
543 | # Exercise error messages with EOF: work on an empty file. | |
544 | _AT_CHECK_CALC_ERROR([$1], [1], [/dev/null], [4], | |
545 | [1.1: syntax error, unexpected end of input]) | |
546 | ||
547 | # Exercise the error token: without it, we die at the first error, | |
548 | # hence be sure to | |
549 | # | |
550 | # - have several errors which exercise different shift/discardings | |
551 | # - (): nothing to pop, nothing to discard | |
552 | # - (1 + 1 + 1 +): a lot to pop, nothing to discard | |
553 | # - (* * *): nothing to pop, a lot to discard | |
554 | # - (1 + 2 * *): some to pop and discard | |
555 | # | |
556 | # - test the action associated to `error' | |
557 | # | |
558 | # - check the lookahead that triggers an error is not discarded | |
559 | # when we enter error recovery. Below, the lookahead causing the | |
560 | # first error is ")", which is needed to recover from the error and | |
561 | # produce the "0" that triggers the "0 != 1" error. | |
562 | # | |
563 | _AT_CHECK_CALC_ERROR([$1], [0], | |
564 | [() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1], | |
565 | [250], | |
566 | [1.2: syntax error, unexpected ')', expecting number or '-' or '(' or '!' | |
567 | 1.18: syntax error, unexpected ')', expecting number or '-' or '(' or '!' | |
568 | 1.23: syntax error, unexpected '*', expecting number or '-' or '(' or '!' | |
569 | 1.41: syntax error, unexpected '*', expecting number or '-' or '(' or '!' | |
570 | calc: error: 4444 != 1]) | |
571 | ||
572 | # The same, but this time exercising explicitly triggered syntax errors. | |
573 | # POSIX says the lookahead causing the error should not be discarded. | |
574 | _AT_CHECK_CALC_ERROR([$1], [0], [(!) + (0 0) = 1], [102], | |
575 | [1.10: syntax error, unexpected number | |
576 | calc: error: 2222 != 1]) | |
577 | _AT_CHECK_CALC_ERROR([$1], [0], [(- *) + (0 0) = 1], [113], | |
578 | [1.4: syntax error, unexpected '*', expecting number or '-' or '(' or '!' | |
579 | 1.12: syntax error, unexpected number | |
580 | calc: error: 2222 != 1]) | |
581 | ||
582 | # Check that yyerrok works properly: second error is not reported, | |
583 | # third and fourth are. Parse status is succesfull. | |
584 | _AT_CHECK_CALC_ERROR([$1], [0], [(* *) + (*) + (*)], [113], | |
585 | [1.2: syntax error, unexpected '*', expecting number or '-' or '(' or '!' | |
586 | 1.10: syntax error, unexpected '*', expecting number or '-' or '(' or '!' | |
587 | 1.16: syntax error, unexpected '*', expecting number or '-' or '(' or '!']) | |
588 | ||
589 | AT_BISON_OPTION_POPDEFS | |
590 | ||
591 | AT_CLEANUP | |
592 | ])# AT_CHECK_CALC | |
593 | ||
594 | ||
595 | ||
596 | ||
597 | # ------------------------ # | |
598 | # Simple LALR Calculator. # | |
599 | # ------------------------ # | |
600 | ||
601 | AT_BANNER([[Simple LALR(1) Calculator.]]) | |
602 | ||
603 | # AT_CHECK_CALC_LALR([BISON-OPTIONS]) | |
604 | # ----------------------------------- | |
605 | # Start a testing chunk which compiles `calc' grammar with | |
606 | # BISON-OPTIONS, and performs several tests over the parser. | |
607 | m4_define([AT_CHECK_CALC_LALR], | |
608 | [AT_CHECK_CALC($@)]) | |
609 | ||
610 | AT_CHECK_CALC_LALR() | |
611 | ||
612 | AT_CHECK_CALC_LALR([%defines]) | |
613 | AT_CHECK_CALC_LALR([%locations]) | |
614 | ||
615 | AT_CHECK_CALC_LALR([%name-prefix="calc"]) dnl test deprecated `=' | |
616 | AT_CHECK_CALC_LALR([%verbose]) | |
617 | AT_CHECK_CALC_LALR([%yacc]) | |
618 | AT_CHECK_CALC_LALR([%error-verbose]) | |
619 | ||
620 | AT_CHECK_CALC_LALR([%define api.pure %locations]) | |
621 | AT_CHECK_CALC_LALR([%define api.push-pull both %define api.pure %locations]) | |
622 | AT_CHECK_CALC_LALR([%error-verbose %locations]) | |
623 | ||
624 | AT_CHECK_CALC_LALR([%error-verbose %locations %defines %name-prefix "calc" %verbose %yacc]) | |
625 | ||
626 | AT_CHECK_CALC_LALR([%debug]) | |
627 | AT_CHECK_CALC_LALR([%error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc]) | |
628 | ||
629 | AT_CHECK_CALC_LALR([%define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc]) | |
630 | AT_CHECK_CALC_LALR([%define api.push-pull both %define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc]) | |
631 | ||
632 | AT_CHECK_CALC_LALR([%define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}]) | |
633 | ||
634 | ||
635 | # ----------------------- # | |
636 | # Simple GLR Calculator. # | |
637 | # ----------------------- # | |
638 | ||
639 | AT_BANNER([[Simple GLR Calculator.]]) | |
640 | ||
641 | # AT_CHECK_CALC_GLR([BISON-OPTIONS]) | |
642 | # ---------------------------------- | |
643 | # Start a testing chunk which compiles `calc' grammar with | |
644 | # BISON-OPTIONS and %glr-parser, and performs several tests over the parser. | |
645 | m4_define([AT_CHECK_CALC_GLR], | |
646 | [AT_CHECK_CALC([%glr-parser] $@)]) | |
647 | ||
648 | ||
649 | AT_CHECK_CALC_GLR() | |
650 | ||
651 | AT_CHECK_CALC_GLR([%defines]) | |
652 | AT_CHECK_CALC_GLR([%locations]) | |
653 | AT_CHECK_CALC_GLR([%name-prefix "calc"]) | |
654 | AT_CHECK_CALC_GLR([%verbose]) | |
655 | AT_CHECK_CALC_GLR([%yacc]) | |
656 | AT_CHECK_CALC_GLR([%error-verbose]) | |
657 | ||
658 | AT_CHECK_CALC_GLR([%define api.pure %locations]) | |
659 | AT_CHECK_CALC_GLR([%error-verbose %locations]) | |
660 | ||
661 | AT_CHECK_CALC_GLR([%error-verbose %locations %defines %name-prefix "calc" %verbose %yacc]) | |
662 | ||
663 | AT_CHECK_CALC_GLR([%debug]) | |
664 | AT_CHECK_CALC_GLR([%error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc]) | |
665 | ||
666 | AT_CHECK_CALC_GLR([%define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc]) | |
667 | ||
668 | AT_CHECK_CALC_GLR([%define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}]) | |
669 | ||
670 | ||
671 | # ----------------------------- # | |
672 | # Simple LALR1 C++ Calculator. # | |
673 | # ----------------------------- # | |
674 | ||
675 | AT_BANNER([[Simple LALR(1) C++ Calculator.]]) | |
676 | ||
677 | # First let's try using %skeleton | |
678 | AT_CHECK_CALC([%skeleton "lalr1.cc" %defines %locations]) | |
679 | ||
680 | # AT_CHECK_CALC_LALR1_CC([BISON-OPTIONS]) | |
681 | # --------------------------------------- | |
682 | # Start a testing chunk which compiles `calc' grammar with | |
683 | # the C++ skeleton, and performs several tests over the parser. | |
684 | m4_define([AT_CHECK_CALC_LALR1_CC], | |
685 | [AT_CHECK_CALC([%language "C++" %defines %locations] $@)]) | |
686 | ||
687 | AT_CHECK_CALC_LALR1_CC([]) | |
688 | AT_CHECK_CALC_LALR1_CC([%define location_type Span]) | |
689 | AT_CHECK_CALC_LALR1_CC([%error-verbose %name-prefix "calc" %verbose %yacc]) | |
690 | AT_CHECK_CALC_LALR1_CC([%error-verbose %debug %name-prefix "calc" %verbose %yacc]) | |
691 | ||
692 | AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %name-prefix "calc" %verbose %yacc]) | |
693 | ||
694 | AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %name-prefix "calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}]) | |
695 | ||
696 | ||
697 | ||
698 | # --------------------------- # | |
699 | # Simple GLR C++ Calculator. # | |
700 | # --------------------------- # | |
701 | ||
702 | AT_BANNER([[Simple GLR C++ Calculator.]]) | |
703 | ||
704 | # Again, we try also using %skeleton. | |
705 | AT_CHECK_CALC([%skeleton "glr.cc" %defines %locations]) | |
706 | ||
707 | # AT_CHECK_CALC_GLR_CC([BISON-OPTIONS]) | |
708 | # ------------------------------------- | |
709 | # Start a testing chunk which compiles `calc' grammar with | |
710 | # the GLR C++ skeleton, and performs several tests over the parser. | |
711 | m4_define([AT_CHECK_CALC_GLR_CC], | |
712 | [AT_CHECK_CALC([%language "C++" %glr-parser %defines %locations] $@)]) | |
713 | ||
714 | AT_CHECK_CALC_GLR_CC([]) | |
715 | AT_CHECK_CALC_GLR_CC([%define location_type Span]) | |
716 | AT_CHECK_CALC_GLR_CC([%error-verbose %name-prefix "calc" %verbose %yacc]) | |
717 | ||
718 | AT_CHECK_CALC_GLR_CC([%debug]) | |
719 | AT_CHECK_CALC_GLR_CC([%error-verbose %debug %name-prefix "calc" %verbose %yacc]) | |
720 | ||
721 | AT_CHECK_CALC_GLR_CC([%pure-parser %error-verbose %debug %name-prefix "calc" %verbose %yacc]) | |
722 | ||
723 | AT_CHECK_CALC_GLR_CC([%pure-parser %error-verbose %debug %name-prefix "calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}]) |