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087b9fdf 1# Checking the Bison scanner. -*- Autotest -*-
7d424de1 2
34136e65 3# Copyright (C) 2002-2012 Free Software Foundation, Inc.
9b2d0677 4
f16b0819 5# This program is free software: you can redistribute it and/or modify
9b2d0677 6# it under the terms of the GNU General Public License as published by
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7# the Free Software Foundation, either version 3 of the License, or
8# (at your option) any later version.
9#
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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.
f16b0819 14#
9b2d0677 15# You should have received a copy of the GNU General Public License
f16b0819 16# along with this program. If not, see <http://www.gnu.org/licenses/>.
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17
18AT_BANNER([[Input Processing.]])
19
20# Mostly test that we are robust to mistakes.
21
6c35d22c 22
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23## ------------ ##
24## Invalid $n. ##
25## ------------ ##
26
287b314e 27AT_SETUP([Invalid $n and @n])
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28
29AT_DATA([input.y],
30[[%%
bfcf1f3a 31exp: { $$ = $1 ; };
bfcf1f3a 32exp: { @$ = @1 ; };
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33]])
34
da730230 35AT_BISON_CHECK([input.y], [1], [],
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36[[input.y:2.13-14: integer out of range: '$1'
37input.y:3.13-14: integer out of range: '@1'
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38]])
39
40AT_CLEANUP
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41
42
43## -------------- ##
e776192e 44## Type Clashes. ##
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45## -------------- ##
46
e776192e 47AT_SETUP([Type Clashes])
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48
49AT_DATA([input.y],
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50[[%union { int bar; }
51%token foo
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52%type <bar> exp
53%%
ffa4ba3a 54exp: foo { $$; } foo { $2; } foo
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55 | foo
56 | /* Empty. */
57 ;
58]])
59
da730230 60AT_BISON_CHECK([input.y], [1], [],
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61[[input.y:5.12-13: $$ for the midrule at $2 of 'exp' has no declared type
62input.y:5.24-25: $2 of 'exp' has no declared type
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63input.y:5.6-32: warning: type clash on default action: <bar> != <>
64input.y:6.6-8: warning: type clash on default action: <bar> != <>
65input.y:7.5: warning: empty rule for typed nonterminal, and no action
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66]])
67
68AT_CLEANUP
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69
70
ffa4ba3a 71# _AT_UNUSED_VALUES_DECLARATIONS()
dab244d5 72# --------------------------------
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73# Generate the token, type, and destructor
74# declarations for the unused values tests.
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75m4_define([_AT_UNUSED_VALUES_DECLARATIONS],
76[[[%token <integer> INT;
77%type <integer> a b c d e f g h i j k l;
78%destructor { destroy ($$); } INT a b c d e f g h i j k l;]]])
378f4bd8 79
ffa4ba3a 80
17bd8a73 81# AT_CHECK_UNUSED_VALUES(DECLARATIONS_AFTER, CHECK_MIDRULE_VALUES)
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82# ----------------------------------------------------------------
83# Generate a grammar to test unused values, compile it, run it. If
84# DECLARATIONS_AFTER is set, then the token, type, and destructor
85# declarations are generated after the rules rather than before. If
86# CHECK_MIDRULE_VALUES is set, then --warnings=midrule-values is set.
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87m4_define([AT_CHECK_UNUSED_VALUES],
88[AT_DATA([input.y],
89m4_ifval($1, [
90
91
92], [_AT_UNUSED_VALUES_DECLARATIONS
93])[[%%
27622431 94start:
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95 'a' a { $]2[; } | 'b' b { $]2[; } | 'c' c { $]2[; } | 'd' d { $]2[; }
96| 'e' e { $]2[; } | 'f' f { $]2[; } | 'g' g { $]2[; } | 'h' h { $]2[; }
97| 'i' i { $]2[; } | 'j' j { $]2[; } | 'k' k { $]2[; } | 'l' l { $]2[; }
378f4bd8 98;
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99
100a: INT | INT { } INT { } INT { };
101b: INT | /* empty */;
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102c: INT | INT { $]1[; } INT { $<integer>2; } INT { $<integer>4; };
103d: INT | INT { } INT { $]1[; } INT { $<integer>2; };
104e: INT | INT { } INT { } INT { $]1[; };
ffa4ba3a 105f: INT | INT { } INT { } INT { $]$[ = $]1[ + $]3[ + $]5[; };
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106g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
107h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
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108i: INT | INT INT { } { $]$[ = $]1[ + $]2[; };
109j: INT | INT INT { $<integer>$ = 1; } { $]$[ = $]1[ + $]2[; };
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110k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
111l: INT | INT { $<integer>$ = $<integer>1; } INT { $<integer>$ = $<integer>2 + $<integer>3; } INT { $<integer>$ = $<integer>4 + $<integer>5; };]]m4_ifval($1, [
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112_AT_UNUSED_VALUES_DECLARATIONS])
113)
114
da730230 115AT_BISON_CHECK(m4_ifval($2, [ --warnings=midrule-values ])[ input.y], [0], [],
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116[[input.y:11.10-32: warning: unset value: $]$[
117input.y:11.10-32: warning: unused value: $]1[
118input.y:11.10-32: warning: unused value: $]3[
119input.y:11.10-32: warning: unused value: $]5[
120input.y:12.9: warning: empty rule for typed nonterminal, and no action
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121]]m4_ifval($2, [[[input.y:13.14-20: warning: unset value: $$
122input.y:13.26-41: warning: unset value: $$
123]]])[[input.y:13.10-62: warning: unset value: $]$[
124input.y:13.10-62: warning: unused value: $]3[
125input.y:13.10-62: warning: unused value: $]5[
17bd8a73 126]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $$
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127]]])[[input.y:14.10-49: warning: unset value: $]$[
128input.y:14.10-49: warning: unused value: $]3[
129input.y:14.10-49: warning: unused value: $]5[
130input.y:15.10-37: warning: unset value: $]$[
131input.y:15.10-37: warning: unused value: $]3[
132input.y:15.10-37: warning: unused value: $]5[
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133input.y:17.10-58: warning: unset value: $]$[
134input.y:17.10-58: warning: unused value: $]1[
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135]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]2[
136]]])[[input.y:17.10-58: warning: unused value: $]3[
137]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]4[
138]]])[[input.y:17.10-58: warning: unused value: $]5[
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139input.y:18.10-72: warning: unset value: $]$[
140input.y:18.10-72: warning: unused value: $]1[
141input.y:18.10-72: warning: unused value: $]3[
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142]]m4_ifval($2, [[[input.y:18.10-72: warning: unused value: $]4[
143]]])[[input.y:18.10-72: warning: unused value: $]5[
144]]m4_ifval($2, [[[input.y:20.10-55: warning: unused value: $]3[
145]]])[[input.y:21.10-68: warning: unset value: $]$[
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146input.y:21.10-68: warning: unused value: $]1[
147input.y:21.10-68: warning: unused value: $]2[
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148]]m4_ifval($2, [[[input.y:21.10-68: warning: unused value: $]4[
149]]]))])
27622431 150
378f4bd8 151
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152## --------------- ##
153## Unused values. ##
154## --------------- ##
155
156AT_SETUP([Unused values])
157AT_CHECK_UNUSED_VALUES
17bd8a73 158AT_CHECK_UNUSED_VALUES(, [1])
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159AT_CLEANUP
160
161
162## ------------------------------------------ ##
163## Unused values before symbol declarations. ##
164## ------------------------------------------ ##
84866159 165
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166AT_SETUP([Unused values before symbol declarations])
167AT_CHECK_UNUSED_VALUES([1])
17bd8a73 168AT_CHECK_UNUSED_VALUES([1], [1])
84866159 169AT_CLEANUP
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170
171
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172## --------------------------------------------- ##
173## Default %printer and %destructor redeclared. ##
174## --------------------------------------------- ##
175
176AT_SETUP([Default %printer and %destructor redeclared])
177
178AT_DATA([[input.y]],
12e35840 179[[%destructor { destroy ($$); } <*> <*>
abcd36ca 180%printer { print ($$); } <*> <*>
ec5479ce 181
12e35840 182%destructor { destroy ($$); } <*>
abcd36ca 183%printer { print ($$); } <*>
12e35840 184
3ebecc24 185%destructor { destroy ($$); } <> <>
abcd36ca 186%printer { print ($$); } <> <>
12e35840 187
3ebecc24 188%destructor { destroy ($$); } <>
abcd36ca 189%printer { print ($$); } <>
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190
191%%
192
193start: ;
194
12e35840 195%destructor { destroy ($$); } <*>;
abcd36ca 196%printer { print ($$); } <*>;
12e35840 197
3ebecc24 198%destructor { destroy ($$); } <>;
abcd36ca 199%printer { print ($$); } <>;
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200]])
201
da730230 202AT_BISON_CHECK([input.y], [1], [],
12e35840 203[[input.y:1.13-29: redeclaration for default tagged %destructor
b2a0b7ca 204input.y:1.13-29: previous declaration
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205input.y:2.10-24: redeclaration for default tagged %printer
206input.y:2.10-24: previous declaration
12e35840 207input.y:4.13-29: redeclaration for default tagged %destructor
ec5479ce 208input.y:1.13-29: previous declaration
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209input.y:5.10-24: redeclaration for default tagged %printer
210input.y:2.10-24: previous declaration
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211input.y:7.13-29: redeclaration for default tagless %destructor
212input.y:7.13-29: previous declaration
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213input.y:8.10-24: redeclaration for default tagless %printer
214input.y:8.10-24: previous declaration
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215input.y:10.13-29: redeclaration for default tagless %destructor
216input.y:7.13-29: previous declaration
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217input.y:11.10-24: redeclaration for default tagless %printer
218input.y:8.10-24: previous declaration
12e35840 219input.y:17.13-29: redeclaration for default tagged %destructor
ec5479ce 220input.y:4.13-29: previous declaration
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221input.y:18.10-24: redeclaration for default tagged %printer
222input.y:5.10-24: previous declaration
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223input.y:20.13-29: redeclaration for default tagless %destructor
224input.y:10.13-29: previous declaration
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225input.y:21.10-24: redeclaration for default tagless %printer
226input.y:11.10-24: previous declaration
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227]])
228
229AT_CLEANUP
230
231
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232## ---------------------------------------------- ##
233## Per-type %printer and %destructor redeclared. ##
234## ---------------------------------------------- ##
235
236AT_SETUP([Per-type %printer and %destructor redeclared])
237
238AT_DATA([[input.y]],
239[[%destructor { destroy ($$); } <field1> <field2>
abcd36ca 240%printer { print ($$); } <field1> <field2>
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241
242%destructor { destroy ($$); } <field1> <field1>
abcd36ca 243%printer { print ($$); } <field2> <field2>
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244
245%%
246
247start: ;
248
249%destructor { destroy ($$); } <field2> <field1>;
abcd36ca 250%printer { print ($$); } <field2> <field1>;
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251]])
252
da730230 253AT_BISON_CHECK([input.y], [1], [],
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254[[input.y:4.13-29: %destructor redeclaration for <field1>
255input.y:1.13-29: previous declaration
256input.y:4.13-29: %destructor redeclaration for <field1>
257input.y:4.13-29: previous declaration
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258input.y:5.10-24: %printer redeclaration for <field2>
259input.y:2.10-24: previous declaration
260input.y:5.10-24: %printer redeclaration for <field2>
261input.y:5.10-24: previous declaration
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262input.y:11.13-29: %destructor redeclaration for <field1>
263input.y:4.13-29: previous declaration
264input.y:11.13-29: %destructor redeclaration for <field2>
265input.y:1.13-29: previous declaration
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266input.y:12.10-24: %printer redeclaration for <field1>
267input.y:2.10-24: previous declaration
268input.y:12.10-24: %printer redeclaration for <field2>
269input.y:5.10-24: previous declaration
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270]])
271
272AT_CLEANUP
273
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274## ----------------------------------------------------- ##
275## Undeclared symbols used for a printer or destructor. ##
276## ----------------------------------------------------- ##
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277
278AT_SETUP([Undeclared symbols used for a printer or destructor])
279
280AT_DATA([[input.y]],
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281[[%printer {} foo baz
282%destructor {} bar
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283
284%%
3b0b682f 285exp: bar;
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286]])
287
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288AT_BISON_CHECK([input.y], [1], [],
289[[input.y:2.16-18: symbol bar is used, but is not defined as a token and has no rules
290input.y:1.17-19: warning: symbol baz is used, but is not defined as a token and has no rules
291input.y:1.13-15: warning: symbol foo is used, but is not defined as a token and has no rules
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292]])
293
294AT_CLEANUP
295
b2a0b7ca 296
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297## ---------------------------------------- ##
298## Unused values with default %destructor. ##
299## ---------------------------------------- ##
300
301AT_SETUP([Unused values with default %destructor])
302
303AT_DATA([[input.y]],
3ebecc24 304[[%destructor { destroy ($$); } <>
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305%type <tag> tagged
306
307%%
308
309start: end end tagged tagged { $<tag>1; $3; } ;
310end: { } ;
311tagged: { } ;
312]])
313
da730230 314AT_BISON_CHECK([input.y], [0], [],
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315[[input.y:6.8-45: warning: unset value: $$
316input.y:6.8-45: warning: unused value: $2
317input.y:7.6-8: warning: unset value: $$
318]])
319
320AT_DATA([[input.y]],
321[[%destructor { destroy ($$); } <*>
322%type <tag> tagged
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323
324%%
325
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326start: end end tagged tagged { $<tag>1; $3; } ;
327end: { } ;
328tagged: { } ;
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329]])
330
da730230 331AT_BISON_CHECK([input.y], [0], [],
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332[[input.y:6.8-45: warning: unused value: $4
333input.y:8.9-11: warning: unset value: $$
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334]])
335
336AT_CLEANUP
337
338
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339## ----------------------------------------- ##
340## Unused values with per-type %destructor. ##
341## ----------------------------------------- ##
342
343AT_SETUP([Unused values with per-type %destructor])
344
345AT_DATA([[input.y]],
346[[%destructor { destroy ($$); } <field1>
347%type <field1> start end
348
349%%
350
351start: end end { $1; } ;
352end: { } ;
353]])
354
da730230 355AT_BISON_CHECK([input.y], [0], [],
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356[[input.y:6.8-22: warning: unset value: $$
357input.y:6.8-22: warning: unused value: $2
358input.y:7.6-8: warning: unset value: $$
359]])
360
361AT_CLEANUP
362
363
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364## ---------------------- ##
365## Incompatible Aliases. ##
366## ---------------------- ##
367
368AT_SETUP([Incompatible Aliases])
369
370AT_DATA([input.y],
371[[%token foo "foo"
372
373%type <bar> foo
374%printer {bar} foo
375%destructor {bar} foo
376%left foo
377
378%type <baz> "foo"
379%printer {baz} "foo"
380%destructor {baz} "foo"
381%left "foo"
382
383%%
384exp: foo;
385]])
386
da730230 387AT_BISON_CHECK([input.y], [1], [],
df09ef2e 388[[input.y:8.7-11: %type redeclaration for foo
dd60572a 389input.y:3.7-11: previous declaration
df09ef2e 390input.y:10.13-17: %destructor redeclaration for foo
dd60572a 391input.y:5.13-17: previous declaration
e2a8c0f5 392input.y:9.10-14: %printer redeclaration for foo
dd60572a 393input.y:4.10-14: previous declaration
df09ef2e 394input.y:11.1-5: %left redeclaration for foo
dd60572a 395input.y:6.1-5: previous declaration
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396]])
397
398AT_CLEANUP
399
400
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401
402## ----------------------- ##
403## Torturing the Scanner. ##
404## ----------------------- ##
405
406# Be sure to compile and run, so that the C compiler checks what
407# we do.
408
409AT_SETUP([Torturing the Scanner])
410
71c7e24f 411AT_BISON_OPTION_PUSHDEFS
0baf7c50 412AT_DATA([input.y], [])
da730230 413AT_BISON_CHECK([input.y], [1], [],
4a678af8 414[[input.y:1.1: syntax error, unexpected end of file
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415]])
416
417
e9071366 418AT_DATA([input.y],
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419[{}
420])
da730230 421AT_BISON_CHECK([input.y], [1], [],
4a678af8 422[[input.y:1.1-2: syntax error, unexpected {...}
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423]])
424
425
9501dc6e 426AT_DATA_GRAMMAR([input.y],
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427[[%{
428/* This is seen in GCC: a %{ and %} in middle of a comment. */
429const char *foo = "So %{ and %} can be here too.";
430
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431#if 0
432/* These examples test Bison while not stressing C compilers too much.
433 Many C compilers mishandle backslash-newlines, so this part of the
434 test is inside "#if 0". The comment and string are written so that
435 the "#endif" will be seen regardless of the C compiler bugs that we
436 know about, namely:
437
438 HP C (as of late 2002) mishandles *\[newline]\[newline]/ within a
439 comment.
440
441 The Apple Darwin compiler (as of late 2002) mishandles
442 \\[newline]' within a character constant.
443
444 */
445
206fe6a5 446/\
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447* A comment with backslash-newlines in it. %} *\
448\
206fe6a5 449/
dda7a53e 450/* { Close the above comment, if the C compiler mishandled it. */
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451
452char str[] = "\\
453" A string with backslash-newlines in it %{ %} \\
dda7a53e 454\
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455"";
456
dda7a53e 457char apostrophe = '\'';
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458#endif
459
5a08f1ce 460#include <stdio.h>
c4bd5bf7 461#include <stdlib.h>
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462%}
463/* %{ and %} can be here too. */
464
465%{
466/* Exercise pre-prologue dependency to %union. */
051ade83 467typedef int value;
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468%}
469
470/* Exercise M4 quoting: '@:>@@:>@', 0. */
471
472/* Also exercise %union. */
473%union
474{
051ade83 475 value ival; /* A comment to exercise an old bug. */
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476};
477
478
479/* Exercise post-prologue dependency to %union. */
480%{
051ade83 481static YYSTYPE value_as_yystype (value val);
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482
483/* Exercise quotes in declarations. */
484char quote[] = "@:>@@:>@,";
485%}
486
487%{
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488]AT_YYERROR_DECLARE[
489]AT_YYLEX_DECLARE[
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490%}
491
206fe6a5 492%type <ival> '@<:@'
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493
494/* Exercise quotes in strings. */
3dc4c5fa 495%token FAKE "fake @<:@@:>@ \a\b\f\n\r\t\v\"\'\?\\\u005B\U0000005c ??!??'??(??)??-??/??<??=??> \x1\1"
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496
497%%
206fe6a5 498/* Exercise M4 quoting: '@:>@@:>@', @<:@, 1. */
087b9fdf 499exp: '@<:@' '\1' two '$' '@' '{' oline output.or.oline.opt
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500 {
501 /* Exercise quotes in braces. */
502 char tmp[] = "@<:@%c@:>@,\n";
503 printf (tmp, $1);
504 }
505;
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506
507two: '\x000000000000000000000000000000000000000000000000000000000000000000002';
508oline: '@' 'o' 'l' 'i' 'n' 'e' '@' '_' '_' 'o' 'l' 'i' 'n' 'e' '_' '_';
087b9fdf 509output.or.oline.opt: ;|oline;;|output;;;
5b7f88c7 510output: '#' 'o' 'u' 't' 'p' 'u' 't' ' ';
5a08f1ce 511%%
206fe6a5 512/* Exercise M4 quoting: '@:>@@:>@', @<:@, 2. */
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513
514static YYSTYPE
051ade83 515value_as_yystype (value val)
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516{
517 YYSTYPE res;
518 res.ival = val;
519 return res;
520}
71c7e24f 521]AT_YYERROR_DEFINE[
7172e23e 522static int
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523yylex (void)
524{
cf806753 525 static char const input[] = "@<:@\1\2$@{@oline@__@&t@oline__\
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526#output "; /* "
527 */
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528 static size_t toknum;
529 if (! (toknum < sizeof input))
530 abort ();
531 yylval = value_as_yystype (input[toknum]);
532 return input[toknum++];
5a08f1ce 533}
5a08f1ce
AD
534]])
535
9501dc6e
AD
536# Pacify Emacs'font-lock-mode: "
537
5a08f1ce 538AT_DATA([main.c],
051ade83 539[[typedef int value;
5a08f1ce
AD
540#include "input.h"
541
542int yyparse (void);
543
544int
545main (void)
546{
547 return yyparse ();
548}
549]])
71c7e24f 550AT_BISON_OPTION_POPDEFS
5a08f1ce 551
da730230 552AT_BISON_CHECK([-d -v -o input.c input.y])
efc6bf1b
PE
553AT_COMPILE([input.o], [-c input.c])
554AT_COMPILE([main.o], [-c main.c])
555AT_COMPILE([input], [input.o main.o])
1154cced 556AT_PARSER_CHECK([./input], 0,
206fe6a5 557[[[@<:@],
5a08f1ce
AD
558]])
559
560AT_CLEANUP
e59adf8f
PE
561
562
563## ---------------------- ##
564## Typed symbol aliases. ##
565## ---------------------- ##
566
567AT_SETUP([Typed symbol aliases])
568
569# Bison 2.0 broke typed symbol aliases - ensure they work.
570
571AT_DATA_GRAMMAR([input.y],
572[[%union
573{
574 int val;
575};
576%token <val> MY_TOKEN "MY TOKEN"
577%type <val> exp
578%%
579exp: "MY TOKEN";
580%%
581]])
582
da730230 583AT_BISON_CHECK([-o input.c input.y])
e59adf8f
PE
584
585AT_CLEANUP
b50d2359
AD
586
587
588## --------- ##
589## Require. ##
590## --------- ##
591
592m4_define([AT_CHECK_REQUIRE],
593[AT_SETUP([Require $1])
594AT_DATA_GRAMMAR([input.y],
595[[%require "$1";
596%%
597empty_file:;
598]])
da730230 599AT_BISON_CHECK([-o input.c input.y], $2, [], ignore)
b50d2359
AD
600AT_CLEANUP
601])
602
603AT_CHECK_REQUIRE(1.0, 0)
604AT_CHECK_REQUIRE(AT_PACKAGE_VERSION, 0)
605## FIXME: Some day augment this version number.
9b8a5ce0 606AT_CHECK_REQUIRE(100.0, 63)
1f6b3679
JD
607
608
609## ------------------------------------- ##
610## String aliases for character tokens. ##
611## ------------------------------------- ##
612
613AT_SETUP([String aliases for character tokens])
614
dab244d5
AD
615# Bison once thought a character token and its alias were different
616# symbols with the same user token number.
1f6b3679
JD
617
618AT_DATA_GRAMMAR([input.y],
619[[%token 'a' "a"
620%%
621start: 'a';
622%%
623]])
624
da730230 625AT_BISON_CHECK([-o input.c input.y])
1f6b3679
JD
626
627AT_CLEANUP
47aee066
JD
628
629
746ee38c
AD
630## -------------- ##
631## Symbol names. ##
632## -------------- ##
633
634AT_SETUP([Symbols])
635
55f48c48 636AT_BISON_OPTION_PUSHDEFS
746ee38c
AD
637AT_DATA_GRAMMAR([input.y],
638[[%token WITH-DASH
639%token WITHOUT_DASH "WITHOUT-DASH"
640%token WITH.PERIOD
641%token WITHOUT_PERIOD "WITHOUT.PERIOD"
d521ee19 642%code {
55f48c48
AD
643 ]AT_YYERROR_DECLARE[
644 ]AT_YYLEX_DECLARE[
d521ee19 645}
746ee38c
AD
646%%
647start: with-dash without_dash with.period without_period;
648with-dash: WITH-DASH;
649without_dash: "WITHOUT-DASH";
650with.period: WITH.PERIOD;
651without_period: "WITHOUT.PERIOD";
652%%
55f48c48
AD
653]AT_YYERROR_DEFINE[
654]AT_YYLEX_DEFINE[
746ee38c 655]])
55f48c48 656AT_BISON_OPTION_POPDEFS
746ee38c
AD
657
658# POSIX Yacc accept periods, but not dashes.
659AT_BISON_CHECK([--yacc input.y], [1], [],
660[[input.y:9.8-16: POSIX Yacc forbids dashes in symbol names: WITH-DASH
d521ee19 661input.y:18.8-16: POSIX Yacc forbids dashes in symbol names: with-dash
746ee38c
AD
662]])
663
664# So warn about them.
665AT_BISON_CHECK([-Wyacc input.y], [], [],
666[[input.y:9.8-16: warning: POSIX Yacc forbids dashes in symbol names: WITH-DASH
d521ee19 667input.y:18.8-16: warning: POSIX Yacc forbids dashes in symbol names: with-dash
746ee38c
AD
668]])
669
670# Dashes are fine for GNU Bison.
671AT_BISON_CHECK([-o input.c input.y])
672
673# Make sure we don't export silly token identifiers with periods or dashes.
674AT_COMPILE([input.o], [-c input.c])
675
676
82f3355e
JD
677# Periods are genuine letters, they can start identifiers.
678# Digits and dashes cannot.
746ee38c 679AT_DATA_GRAMMAR([input.y],
cdf3f113 680[[%token .GOOD
84a1cb5a
AD
681 -GOOD
682 1NV4L1D
82f3355e 683 -123
746ee38c 684%%
82f3355e 685start: .GOOD GOOD
746ee38c
AD
686]])
687AT_BISON_CHECK([-o input.c input.y], [1], [],
ae93e4e4
JM
688[[input.y:10.10: invalid character: '-'
689input.y:11.10-16: invalid identifier: '1NV4L1D'
690input.y:12.10: invalid character: '-'
746ee38c
AD
691]])
692
693AT_CLEANUP
694
695
ab2a9f57
AD
696## ----------------- ##
697## Numbered tokens. ##
698## ----------------- ##
699
700AT_SETUP([Numbered tokens])
701
83b60c97
JD
702AT_DATA_GRAMMAR([redecl.y],
703[[%token DECIMAL_1 11259375
704 HEXADECIMAL_1 0xabcdef
705 HEXADECIMAL_2 0xFEDCBA
706 DECIMAL_2 16702650
ab2a9f57 707%%
83b60c97 708start: DECIMAL_1 HEXADECIMAL_2;
8893145a
AD
709]])
710
83b60c97
JD
711AT_BISON_CHECK([redecl.y], [1], [],
712[[redecl.y:10.10-22: user token number 11259375 redeclaration for HEXADECIMAL_1
713redecl.y:9.8-16: previous declaration for DECIMAL_1
714redecl.y:12.10-18: user token number 16702650 redeclaration for DECIMAL_2
715redecl.y:11.10-22: previous declaration for HEXADECIMAL_2
8893145a
AD
716]])
717
83b60c97 718AT_DATA_GRAMMAR([too-large.y],
ab2a9f57
AD
719[[%token TOO_LARGE_DEC 999999999999999999999
720 TOO_LARGE_HEX 0xFFFFFFFFFFFFFFFFFFF
721%%
722start: TOO_LARGE_DEC TOO_LARGE_HEX
723%%
724]])
725
83b60c97 726AT_BISON_CHECK([too-large.y], [1], [],
ae93e4e4
JM
727[[too-large.y:9.22-42: integer out of range: '999999999999999999999'
728too-large.y:10.24-44: integer out of range: '0xFFFFFFFFFFFFFFFFFFF'
ab2a9f57
AD
729]])
730
731AT_CLEANUP
732
733
47aee066
JD
734## --------------------- ##
735## Unclosed constructs. ##
736## --------------------- ##
737
738AT_SETUP([Unclosed constructs])
739
dab244d5
AD
740# Bison's scan-gram.l once forgot to STRING_FINISH some unclosed
741# constructs, so they were prepended to whatever it STRING_GROW'ed
742# next. It also threw them away rather than returning them to the
743# parser. The effect was confusing subsequent error messages.
47aee066
JD
744
745AT_DATA([input.y],
746[[%token A "a
747%token B "b"
748%token AB "ab" // Used to complain that "ab" was already used.
749%token C '1
750%token TWO "2"
751%token TICK_TWELVE "'12" // Used to complain that "'12" was already used.
752
753%%
754
755start: ;
756
757// Used to report a syntax error because it didn't see any kind of symbol
758// identifier.
759%type <f> 'a
760;
761%type <f> "a
762;
763// Used to report a syntax error because it didn't see braced code.
764%destructor { free ($$)
765]])
766
da730230 767AT_BISON_CHECK([-o input.c input.y], 1, [],
ae93e4e4 768[[input.y:1.10-2.0: missing '"' at end of line
4a9cd8f2
AD
769input.y:4.10-5.0: missing "'" at end of line
770input.y:14.11-15.0: missing "'" at end of line
ae93e4e4
JM
771input.y:16.11-17.0: missing '"' at end of line
772input.y:19.13-20.0: missing '}' at end of file
3be03b13 773input.y:20.1: syntax error, unexpected end of file
47aee066
JD
774]])
775
776AT_CLEANUP
4d7370cb
JD
777
778
779## ------------------------- ##
780## %start after first rule. ##
781## ------------------------- ##
782
783AT_SETUP([%start after first rule])
784
dab244d5
AD
785# Bison once complained that a %start after the first rule was a
786# redeclaration of the start symbol.
4d7370cb
JD
787
788AT_DATA([input.y],
789[[%%
790false_start: ;
791start: false_start ;
792%start start;
793]])
794
da730230 795AT_BISON_CHECK([-o input.c input.y])
4d7370cb
JD
796
797AT_CLEANUP
26b8a438
JD
798
799
800## --------------------- ##
801## %prec takes a token. ##
802## --------------------- ##
803
804AT_SETUP([%prec takes a token])
805
806# Bison once allowed %prec sym where sym was a nonterminal.
807
808AT_DATA([input.y],
809[[%%
810start: PREC %prec PREC ;
811PREC: ;
812]])
813
da730230 814AT_BISON_CHECK([input.y], [1], [],
26b8a438
JD
815[[input.y:3.1-4: rule given for PREC, which is a token
816]])
817
818AT_CLEANUP
8e0a5e9e
JD
819
820
8bb3a2e7
JD
821## ------------------------------- ##
822## %prec's token must be defined. ##
823## ------------------------------- ##
824
825AT_SETUP([[%prec's token must be defined]])
826
827# According to POSIX, a %prec token must be defined separately.
828
829AT_DATA([[input.y]],
830[[%%
831start: %prec PREC ;
832]])
833
02354690
JD
834AT_BISON_CHECK([[input.y]], [[0]], [],
835[[input.y:2.8-17: warning: token for %prec is not defined: PREC
8bb3a2e7
JD
836]])
837
838AT_CLEANUP
839
840
6afc30cc
JD
841## -------------------------------- ##
842## Reject unused %code qualifiers. ##
843## -------------------------------- ##
8e0a5e9e 844
6afc30cc 845AT_SETUP([Reject unused %code qualifiers])
8e0a5e9e
JD
846
847AT_DATA([input-c.y],
16dc6a9e
JD
848[[%code q {}
849%code bad {}
850%code bad {}
8405b70c 851%code format {}
8e0a5e9e
JD
852%%
853start: ;
854]])
c6abeab1 855AT_BISON_CHECK([[input-c.y]], [[1]], [],
4aa9d1ff
JM
856[[input-c.y:1.7: %code qualifier 'q' is not used
857input-c.y:2.7-9: %code qualifier 'bad' is not used
858input-c.y:3.7-9: %code qualifier 'bad' is not used
859input-c.y:4.7-12: %code qualifier 'format' is not used
08af01c2 860]])
8e0a5e9e
JD
861
862AT_DATA([input-c-glr.y],
16dc6a9e
JD
863[[%code q {}
864%code bad {}
865 %code bad {}
8e0a5e9e
JD
866%%
867start: ;
868]])
c6abeab1 869AT_BISON_CHECK([[input-c-glr.y]], [[1]], [],
4aa9d1ff
JM
870[[input-c-glr.y:1.7: %code qualifier 'q' is not used
871input-c-glr.y:2.7-9: %code qualifier 'bad' is not used
872input-c-glr.y:3.8-10: %code qualifier 'bad' is not used
08af01c2 873]])
8e0a5e9e
JD
874
875AT_DATA([input-c++.y],
16dc6a9e
JD
876[[%code q {}
877%code bad {}
878 %code q {}
8e0a5e9e
JD
879%%
880start: ;
881]])
c6abeab1 882AT_BISON_CHECK([[input-c++.y]], [[1]], [],
4aa9d1ff
JM
883[[input-c++.y:1.7: %code qualifier 'q' is not used
884input-c++.y:2.7-9: %code qualifier 'bad' is not used
885input-c++.y:3.8: %code qualifier 'q' is not used
08af01c2 886]])
8e0a5e9e
JD
887
888AT_DATA([input-c++-glr.y],
16dc6a9e
JD
889[[%code bad {}
890%code q {}
891%code q {}
8e0a5e9e
JD
892%%
893start: ;
894]])
c6abeab1 895AT_BISON_CHECK([[input-c++-glr.y]], [[1]], [],
4aa9d1ff
JM
896[[input-c++-glr.y:1.7-9: %code qualifier 'bad' is not used
897input-c++-glr.y:2.7: %code qualifier 'q' is not used
898input-c++-glr.y:3.7: %code qualifier 'q' is not used
3fc65ead
JD
899]])
900
901AT_DATA([special-char-@@.y],
16dc6a9e
JD
902[[%code bad {}
903%code q {}
904%code q {}
3fc65ead
JD
905%%
906start: ;
907]])
c6abeab1 908AT_BISON_CHECK([[special-char-@@.y]], [[1]], [],
4aa9d1ff
JM
909[[special-char-@@.y:1.7-9: %code qualifier 'bad' is not used
910special-char-@@.y:2.7: %code qualifier 'q' is not used
911special-char-@@.y:3.7: %code qualifier 'q' is not used
3fc65ead
JD
912]])
913
914AT_DATA([special-char-@:>@.y],
16dc6a9e
JD
915[[%code bad {}
916%code q {}
917%code q {}
3fc65ead
JD
918%%
919start: ;
920]])
c6abeab1 921AT_BISON_CHECK([[special-char-@:>@.y]], [[1]], [],
4aa9d1ff
JM
922[[special-char-@:>@.y:1.7-9: %code qualifier 'bad' is not used
923special-char-@:>@.y:2.7: %code qualifier 'q' is not used
924special-char-@:>@.y:3.7: %code qualifier 'q' is not used
08af01c2 925]])
8e0a5e9e
JD
926
927AT_CLEANUP
7eb8a0bc
JD
928
929
930## ---------------- ##
931## %define errors. ##
932## ---------------- ##
933
934AT_SETUP([%define errors])
935
0b6d43c5 936AT_DATA([input-redefined.y],
16dc6a9e
JD
937[[%define var "value1"
938%define var "value1"
939 %define var "value2"
940%define special1 "@:>@"
941%define special2 "@<:@"
7eb8a0bc
JD
942%%
943start: ;
944]])
945
0b6d43c5 946AT_BISON_CHECK([[input-redefined.y]], [[1]], [],
4aa9d1ff 947[[input-redefined.y:2.9-11: %define variable 'var' redefined
0b6d43c5 948input-redefined.y:1.9-11: previous definition
4aa9d1ff 949input-redefined.y:3.10-12: %define variable 'var' redefined
0b6d43c5
JD
950input-redefined.y:2.9-11: previous definition
951]])
952
953AT_DATA([input-unused.y],
954[[%define var "value"
955%%
956start: ;
957]])
958
c6abeab1 959AT_BISON_CHECK([[input-unused.y]], [[1]], [],
4aa9d1ff 960[[input-unused.y:1.9-11: %define variable 'var' is not used
7eb8a0bc
JD
961]])
962
963AT_CLEANUP
c1d19e10 964
58697c6d 965
de5ab940
JD
966## ----------------------------------- ##
967## %define, --define, --force-define. ##
968## ----------------------------------- ##
58697c6d 969
c6abeab1 970AT_SETUP([[%define, --define, --force-define]])
de5ab940 971
c6abeab1 972AT_DATA([[skel.c]],
de5ab940
JD
973[[m4@&t@_divert_push(0)@
974@output(b4_parser_file_name@)@
975[var-dd: ]b4_percent_define_get([[var-dd]])[
976var-ff: ]b4_percent_define_get([[var-ff]])[
de5ab940
JD
977var-dfg: ]b4_percent_define_get([[var-dfg]])[
978var-fd: ]b4_percent_define_get([[var-fd]])
979m4@&t@_divert_pop(0)
980]])
c6abeab1 981AT_DATA([[input.y]],
0b6d43c5 982[[%define var-dfg "gram"
58697c6d
AD
983%%
984start: ;
985]])
de5ab940
JD
986AT_BISON_CHECK([[-Dvar-dd=cmd-d1 -Dvar-dd=cmd-d2 \
987 -Fvar-ff=cmd-f1 -Fvar-ff=cmd-f2 \
de5ab940
JD
988 -Dvar-dfg=cmd-d -Fvar-dfg=cmd-f \
989 -Fvar-fd=cmd-f -Dvar-fd=cmd-d \
c6abeab1 990 --skeleton ./skel.c input.y]])
de5ab940
JD
991AT_CHECK([[cat input.tab.c]], [[0]],
992[[var-dd: cmd-d2
993var-ff: cmd-f2
de5ab940
JD
994var-dfg: cmd-f
995var-fd: cmd-d
58697c6d
AD
996]])
997
c6abeab1 998AT_DATA([[input-dg.y]],
0b6d43c5
JD
999[[%define var "gram"
1000%%
1001start: ;
1002]])
0b6d43c5 1003AT_BISON_CHECK([[-Dvar=cmd-d input-dg.y]], [[1]], [],
4aa9d1ff 1004[[input-dg.y:1.9-11: %define variable 'var' redefined
0b6d43c5
JD
1005<command line>:2: previous definition
1006]])
1007
c6abeab1
JD
1008AT_DATA([[input-unused.y]],
1009[[%%
1010start: ;
1011]])
1012AT_BISON_CHECK([[-Dunused-d -Funused-f input-unused.y]], [[1]], [],
4aa9d1ff
JM
1013[[<command line>:2: %define variable 'unused-d' is not used
1014<command line>:3: %define variable 'unused-f' is not used
c6abeab1
JD
1015]])
1016
58697c6d
AD
1017AT_CLEANUP
1018
c1d19e10 1019## --------------------------- ##
d782395d 1020## %define Boolean variables. ##
c1d19e10
PB
1021## --------------------------- ##
1022
d782395d 1023AT_SETUP([[%define Boolean variables]])
c1d19e10
PB
1024
1025AT_DATA([Input.y],
1026[[%language "Java"
1027%define public "maybe"
1028%define parser_class_name "Input"
1029%%
1030start: ;
1031]])
1032
da730230 1033AT_BISON_CHECK([[Input.y]], [1], [],
4aa9d1ff 1034[[Input.y:2.9-14: invalid value for %define Boolean variable 'public'
c1d19e10
PB
1035]])
1036
1037AT_CLEANUP
d782395d 1038
f4909773
JD
1039## ------------------------ ##
1040## %define enum variables. ##
1041## ------------------------ ##
7254f6a8 1042
f4909773 1043AT_SETUP([[%define enum variables]])
7254f6a8 1044
f4909773 1045# Front-end.
7254f6a8 1046AT_DATA([[input.y]],
cf499cff 1047[[%define lr.default-reductions bogus
7254f6a8
JD
1048%%
1049start: ;
1050]])
7254f6a8 1051AT_BISON_CHECK([[input.y]], [[1]], [[]],
4aa9d1ff
JM
1052[[input.y:1.9-29: invalid value for %define variable 'lr.default-reductions': 'bogus'
1053input.y:1.9-29: accepted value: 'most'
1054input.y:1.9-29: accepted value: 'consistent'
1055input.y:1.9-29: accepted value: 'accepting'
7254f6a8
JD
1056]])
1057
f4909773 1058# Back-end.
67212941 1059AT_DATA([[input.y]],
cf499cff 1060[[%define api.push-pull neither
67212941
JD
1061%%
1062start: ;
1063]])
1064AT_BISON_CHECK([[input.y]], [1], [],
4aa9d1ff
JM
1065[[input.y:1.9-21: invalid value for %define variable 'api.push-pull': 'neither'
1066input.y:1.9-21: accepted value: 'pull'
1067input.y:1.9-21: accepted value: 'push'
1068input.y:1.9-21: accepted value: 'both'
67212941
JD
1069]])
1070
1071AT_CLEANUP
1072
1073## -------------------------------- ##
1074## %define backward compatibility. ##
1075## -------------------------------- ##
1076
1077AT_SETUP([[%define backward compatibility]])
1078
1079# The error messages tell us whether underscores in these variables are
1080# being converted to dashes.
1081
d782395d 1082AT_DATA([[input.y]],
c373bf8b 1083[[%define api.push_pull "neither"
d782395d
JD
1084%%
1085start: ;
1086]])
da730230 1087AT_BISON_CHECK([[input.y]], [1], [],
4aa9d1ff
JM
1088[[input.y:1.9-21: invalid value for %define variable 'api.push-pull': 'neither'
1089input.y:1.9-21: accepted value: 'pull'
1090input.y:1.9-21: accepted value: 'push'
1091input.y:1.9-21: accepted value: 'both'
d782395d
JD
1092]])
1093
67212941 1094AT_DATA([[input.y]],
cf499cff 1095[[%define lr.keep_unreachable_states maybe
67212941
JD
1096%%
1097start: ;
1098]])
1099AT_BISON_CHECK([[input.y]], [1], [],
4aa9d1ff 1100[[input.y:1.9-34: invalid value for %define Boolean variable 'lr.keep-unreachable-states'
67212941
JD
1101]])
1102
171ad99d
AD
1103AT_DATA([[input.y]],
1104[[%define namespace "foo"
1105%define api.namespace "foo"
1106%%
1107start: ;
1108]])
1109AT_BISON_CHECK([[input.y]], [1], [],
4aa9d1ff 1110[[input.y:2.9-21: %define variable 'api.namespace' redefined
171ad99d
AD
1111input.y:1.9-17: previous definition
1112]])
1113
67212941
JD
1114AT_DATA([[input.y]],
1115[[%define foo_bar "baz"
1116%%
1117start: ;
1118]])
c6abeab1 1119AT_BISON_CHECK([[input.y]], [[1]], [],
4aa9d1ff 1120[[input.y:1.9-15: %define variable 'foo_bar' is not used
67212941
JD
1121]])
1122
d782395d 1123AT_CLEANUP
793fbca5 1124
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JD
1125## ------------------------- ##
1126## Unused %define api.pure. ##
1127## ------------------------- ##
1128
1129AT_SETUP([[Unused %define api.pure]])
1130
1131# AT_CHECK_API_PURE(DECLS, VALUE)
1132# -------------------------------
1133# Make sure Bison reports that `%define api.pure VALUE' is unused when DECLS
1134# are specified.
1135m4_define([AT_CHECK_API_PURE],
1136[
1137AT_DATA([[input.y]],
1138[[%define api.pure ]$2[
1139]$1[
1140%%
1141start: ;
1142]])
1143
c6abeab1 1144AT_BISON_CHECK([[input.y]], [[1]], [],
4aa9d1ff 1145[[input.y:1.9-16: %define variable 'api.pure' is not used
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JD
1146]])
1147])
1148
1149AT_CHECK_API_PURE([[%language "c++" %defines]], [[]])
cf499cff 1150AT_CHECK_API_PURE([[%language "c++" %defines]], [[false]])
d9df47b6 1151AT_CHECK_API_PURE([[%language "c++" %defines %glr-parser]], [[""]])
cf499cff
JD
1152AT_CHECK_API_PURE([[%language "c++" %defines %glr-parser]], [[false]])
1153AT_CHECK_API_PURE([[%language "java"]], [[true]])
1154AT_CHECK_API_PURE([[%language "java"]], [[false]])
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JD
1155
1156AT_CLEANUP
1157
793fbca5
JD
1158## -------------------------------- ##
1159## C++ namespace reference errors. ##
1160## -------------------------------- ##
1161
1162AT_SETUP([[C++ namespace reference errors]])
1163
1164# AT_CHECK_NAMESPACE_ERROR(NAMESPACE-DECL, ERROR, [ERROR], ...)
1165# -------------------------------------------------------------
1166# Make sure Bison reports all ERROR's for %define namespace "NAMESPACE-DECL".
1167m4_define([AT_CHECK_NAMESPACE_ERROR],
1168[
1169AT_DATA([[input.y]],
1170[[%language "C++"
1171%defines
67501061 1172%define api.namespace "]$1["
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JD
1173%%
1174start: ;
1175]])
1176
da730230 1177AT_BISON_CHECK([[input.y]], [1], [],
793fbca5 1178[m4_foreach([b4_arg], m4_dquote(m4_shift($@)),
67501061 1179[[input.y:3.9-21: ]b4_arg[
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JD
1180]])])
1181])
1182
1183AT_CHECK_NAMESPACE_ERROR([[]],
1184 [[namespace reference is empty]])
1185AT_CHECK_NAMESPACE_ERROR([[ ]],
1186 [[namespace reference is empty]])
1187AT_CHECK_NAMESPACE_ERROR([[foo::::bar]],
1188 [[namespace reference has consecutive "::"]])
1189AT_CHECK_NAMESPACE_ERROR([[foo:: ::bar]],
1190 [[namespace reference has consecutive "::"]])
1191AT_CHECK_NAMESPACE_ERROR([[::::bar]],
1192 [[namespace reference has consecutive "::"]])
1193AT_CHECK_NAMESPACE_ERROR([[:: ::bar]],
1194 [[namespace reference has consecutive "::"]])
1195AT_CHECK_NAMESPACE_ERROR([[foo::bar:: ::]],
1196 [[namespace reference has consecutive "::"]],
1197 [[namespace reference has a trailing "::"]])
1198AT_CHECK_NAMESPACE_ERROR([[foo::bar::]],
1199 [[namespace reference has a trailing "::"]])
1200AT_CHECK_NAMESPACE_ERROR([[foo::bar:: ]],
1201 [[namespace reference has a trailing "::"]])
1202AT_CHECK_NAMESPACE_ERROR([[::]],
1203 [[namespace reference has a trailing "::"]])
1204
1205AT_CLEANUP
3208e3f4
JD
1206
1207## ------------------------ ##
1208## Bad character literals. ##
1209## ------------------------ ##
1210
1211# Bison used to accept character literals that were empty or contained
1212# too many characters.
1213
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JD
1214# FIXME: AT_DATA or some variant of AT_DATA may eventually permit
1215# the final newline to be omitted. See the threads starting at
3208e3f4
JD
1216# <http://lists.gnu.org/archive/html/bison-patches/2009-07/msg00019.html>.
1217
1218AT_SETUP([[Bad character literals]])
1219
1220AT_DATA([empty.y],
1221[[%%
1222start: '';
1223start: '
1224]])
b70c7fb4 1225AT_CHECK([[perl -e "print 'start: \'';" >> empty.y || exit 77]])
3208e3f4
JD
1226
1227AT_BISON_CHECK([empty.y], [1], [],
1228[[empty.y:2.8-9: warning: empty character literal
1229empty.y:3.8-4.0: warning: empty character literal
4a9cd8f2 1230empty.y:3.8-4.0: missing "'" at end of line
3208e3f4 1231empty.y:4.8: warning: empty character literal
4a9cd8f2 1232empty.y:4.8: missing "'" at end of file
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JD
1233]])
1234
1235AT_DATA([two.y],
1236[[%%
1237start: 'ab';
1238start: 'ab
1239]])
b70c7fb4 1240AT_CHECK([[perl -e "print 'start: \'ab';" >> two.y || exit 77]])
3208e3f4
JD
1241
1242AT_BISON_CHECK([two.y], [1], [],
1243[[two.y:2.8-11: warning: extra characters in character literal
1244two.y:3.8-4.0: warning: extra characters in character literal
4a9cd8f2 1245two.y:3.8-4.0: missing "'" at end of line
3208e3f4 1246two.y:4.8-10: warning: extra characters in character literal
4a9cd8f2 1247two.y:4.8-10: missing "'" at end of file
3208e3f4
JD
1248]])
1249
1250AT_DATA([three.y],
1251[[%%
1252start: 'abc';
1253start: 'abc
1254]])
b70c7fb4 1255AT_CHECK([[perl -e "print 'start: \'abc';" >> three.y || exit 77]])
3208e3f4
JD
1256
1257AT_BISON_CHECK([three.y], [1], [],
1258[[three.y:2.8-12: warning: extra characters in character literal
1259three.y:3.8-4.0: warning: extra characters in character literal
4a9cd8f2 1260three.y:3.8-4.0: missing "'" at end of line
3208e3f4 1261three.y:4.8-11: warning: extra characters in character literal
4a9cd8f2 1262three.y:4.8-11: missing "'" at end of file
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JD
1263]])
1264
1265AT_CLEANUP
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JD
1266
1267## ------------------------- ##
1268## Bad escapes in literals. ##
1269## ------------------------- ##
1270
1271AT_SETUP([[Bad escapes in literals]])
1272
1273AT_DATA([input.y],
1274[[%%
1275start: '\777' '\0' '\xfff' '\x0'
1276 '\uffff' '\u0000' '\Uffffffff' '\U00000000'
1277 '\ ' '\A';
1278]])
3bed3a75 1279
b70c7fb4 1280# It is not easy to create special characters, we cannot even trust tr.
3bed3a75
AD
1281# Beside we cannot even expect "echo '\0'" to output two characters
1282# (well three with \n): at least Bash 3.2 converts the two-character
1283# sequence "\0" into a single NUL character.
b70c7fb4
JD
1284AT_CHECK([[perl -e 'print "start: \"\\\t\\\f\\\0\\\1\" ;";' >> input.y \
1285 || exit 77]])
c2724603
JD
1286
1287AT_BISON_CHECK([input.y], [1], [],
1288[[input.y:2.9-12: invalid number after \-escape: 777
1289input.y:2.8-13: warning: empty character literal
1290input.y:2.16-17: invalid number after \-escape: 0
1291input.y:2.15-18: warning: empty character literal
1292input.y:2.21-25: invalid number after \-escape: xfff
1293input.y:2.20-26: warning: empty character literal
1294input.y:2.29-31: invalid number after \-escape: x0
1295input.y:2.28-32: warning: empty character literal
1296input.y:3.9-14: invalid number after \-escape: uffff
1297input.y:3.8-15: warning: empty character literal
1298input.y:3.18-23: invalid number after \-escape: u0000
1299input.y:3.17-24: warning: empty character literal
1300input.y:3.27-36: invalid number after \-escape: Uffffffff
1301input.y:3.26-37: warning: empty character literal
1302input.y:3.40-49: invalid number after \-escape: U00000000
1303input.y:3.39-50: warning: empty character literal
ae93e4e4 1304input.y:4.9-10: invalid character after \-escape: ' '
c2724603
JD
1305input.y:4.8-11: warning: empty character literal
1306input.y:4.14-15: invalid character after \-escape: A
1307input.y:4.13-16: warning: empty character literal
1308input.y:5.9-16: invalid character after \-escape: \t
1309input.y:5.17: invalid character after \-escape: \f
1310input.y:5.18: invalid character after \-escape: \0
1311input.y:5.19: invalid character after \-escape: \001
1312]])
1313
1314AT_CLEANUP
bf35c71c
JD
1315
1316## ------------------------- ##
1317## LAC: Errors for %define. ##
1318## ------------------------- ##
1319
1320AT_SETUP([[LAC: Errors for %define]])
1321
1322AT_DATA([[input.y]],
1323[[%%
1324start: ;
1325]])
1326
1327# parse.lac.* options are useless if LAC isn't actually activated.
1328AT_BISON_CHECK([[-Dparse.lac.es-capacity-initial=1 input.y]],
1329 [[1]], [],
4aa9d1ff 1330[[<command line>:2: %define variable 'parse.lac.es-capacity-initial' is not used
bf35c71c 1331]])
107844a3
JD
1332AT_BISON_CHECK([[-Dparse.lac.memory-trace=full input.y]],
1333 [[1]], [],
4aa9d1ff 1334[[<command line>:2: %define variable 'parse.lac.memory-trace' is not used
107844a3 1335]])
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JD
1336
1337AT_CLEANUP
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JD
1338
1339## --------------------------------------------- ##
1340## -Werror is not affected by -Wnone and -Wall. ##
1341## --------------------------------------------- ##
1342
1343AT_SETUP([[-Werror is not affected by -Wnone and -Wall]])
1344
1345AT_DATA([[input.y]],
1346[[%%
1347foo-bar: ;
1348]])
1349
1350# -Werror is not enabled by -Wall or equivalent.
1351AT_BISON_CHECK([[-Wall input.y]], [[0]], [[]],
1352[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar
1353]])
1354AT_BISON_CHECK([[-W input.y]], [[0]], [[]],
1355[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar
1356]])
1357AT_BISON_CHECK([[-Wno-none input.y]], [[0]], [[]],
1358[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar
1359]])
1360
1361# -Werror is not disabled by -Wnone or equivalent.
1362AT_BISON_CHECK([[-Werror,none,yacc input.y]], [[1]], [[]], [[stderr]])
1363AT_CHECK([[sed 's/^.*bison:/bison:/' stderr]], [[0]],
1364[[bison: warnings being treated as errors
1365input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar
1366]])
1367[mv stderr experr]
1368AT_BISON_CHECK([[-Werror,no-all,yacc input.y]], [[1]], [[]], [[experr]])
1369
1370AT_CLEANUP