tests/output.at

   1 # Checking the output filenames.                    -*- Autotest -*-
   2
   3 # Copyright (C) 2000-2002, 2005-2013 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 AT_BANNER([[Output file names.]])
  19
  20 # AT_CHECK_FILES(EXPECTED-FILES, [IGNORED-FILES])
  21 # -----------------------------------------------
  22 # Check that the current directory contains FILE... (sorted).
  23 m4_define([AT_CHECK_FILES],
  24 [AT_CHECK([[find . -type f |
  25            $PERL -ne '
  26       s,\./,,; chomp;
  27       push @file, $_ unless m{^($2|testsuite.log)$};
  28       END { print join (" ", sort @file), "\n" }']],
  29           [], [$1
  30 ])])
  31
  32 # AT_CHECK_OUTPUT(INPUT-FILE, [DIRECTIVES], [FLAGS], EXPECTED-FILES, [STATUS],
  33 #                 [ADDITIONAL-TESTS], [PRE-TESTS])
  34 # -----------------------------------------------------------------------------
  35 m4_define([AT_CHECK_OUTPUT],
  36 [AT_SETUP([[Output files: ]$2 $3])[
  37 ]$7[
  38 for file in ]$1 $4[; do
  39   case $file in
  40     */*) mkdir -p `echo "$file" | sed 's,/[^/]*,,'`;;
  41   esac
  42 done
  43 ]AT_DATA([$1],
  44 [$2[
  45 %%
  46 foo: %empty {};
  47 ]])[
  48
  49 ]AT_BISON_CHECK([$3 $1], [$5], [], [ignore])[
  50 # Ignore the files non-generated files
  51 ]AT_CHECK_FILES([$4], [$1])[
  52 ]$6[
  53 ]AT_CLEANUP[
  54 ]])
  55
  56 AT_CHECK_OUTPUT([foo.y], [], [-dv],
  57                 [foo.output foo.tab.c foo.tab.h])
  58
  59 # Some versions of Valgrind (at least valgrind-3.6.0.SVN-Debian) report
  60 # "fgrep: write error: Bad file descriptor" when stdout is closed, so we
  61 # skip this test group during maintainer-check-valgrind.
  62 AT_CHECK_OUTPUT([foo.y], [], [-dv >&-],
  63                 [foo.output foo.tab.c foo.tab.h],
  64                 [], [],
  65                 [AT_CHECK([[case "$PREBISON" in *valgrind*) exit 77;; esac]])])
  66
  67 AT_CHECK_OUTPUT([foo.y], [], [-dv -o foo.c],
  68                 [foo.c foo.h foo.output])
  69 AT_CHECK_OUTPUT([foo.y], [], [-dv -o foo.tab.c],
  70                 [foo.output foo.tab.c foo.tab.h])
  71
  72 AT_CHECK_OUTPUT([foo.y], [], [-dv -g --xml -y],
  73                 [y.dot y.output y.tab.c y.tab.h y.xml])
  74 # With '-o y.tab.c', we expect 'y.output' etc. (for compatility with Yacc).
  75 AT_CHECK_OUTPUT([foo.y], [], [-dv -g --xml -o y.tab.c],
  76                 [y.dot y.output y.tab.c y.tab.h y.xml])
  77
  78 AT_CHECK_OUTPUT([foo.y], [], [-dv -b bar],
  79                 [bar.output bar.tab.c bar.tab.h])
  80 AT_CHECK_OUTPUT([foo.y], [], [-dv -g -o foo.c],
  81                 [foo.c foo.dot foo.h foo.output])
  82
  83
  84 AT_CHECK_OUTPUT([foo.y], [%defines %verbose],      [],
  85                 [foo.output foo.tab.c foo.tab.h])
  86 AT_CHECK_OUTPUT([foo.y], [%defines %verbose %yacc],[],
  87                 [y.output y.tab.c y.tab.h])
  88
  89 AT_CHECK_OUTPUT([foo.yy], [%defines %verbose %yacc],[],
  90                 [y.output y.tab.c y.tab.h])
  91
  92 # Exercise %output and %file-prefix including deprecated '='
  93 AT_CHECK_OUTPUT([foo.y], [%file-prefix "bar" %defines %verbose],      [],
  94                 [bar.output bar.tab.c bar.tab.h])
  95 AT_CHECK_OUTPUT([foo.y], [%output "bar.c" %defines %verbose %yacc],[],
  96                 [bar.c bar.h bar.output])
  97 AT_CHECK_OUTPUT([foo.y],
  98                 [%file-prefix "baz" %output "bar.c" %defines %verbose %yacc],
  99                 [],
 100                 [bar.c bar.h bar.output])
 101
 102
 103 # Check priorities of extension control.
 104 AT_CHECK_OUTPUT([foo.yy], [%defines %verbose], [],
 105                 [foo.output foo.tab.cc foo.tab.hh])
 106
 107 AT_CHECK_OUTPUT([foo.yy], [%defines %verbose ], [-o foo.c],
 108                 [foo.c foo.h foo.output])
 109
 110 AT_CHECK_OUTPUT([foo.yy], [],
 111                 [--defines=foo.hpp -o foo.c++],
 112                 [foo.c++ foo.hpp])
 113
 114 AT_CHECK_OUTPUT([foo.yy], [%defines "foo.hpp"],
 115                 [-o foo.c++],
 116                 [foo.c++ foo.hpp])
 117
 118 AT_CHECK_OUTPUT([foo.yy], [],
 119                 [-o foo.c++ --graph=foo.gph],
 120                 [foo.c++ foo.gph])
 121
 122 # Do not generate code when there are early errors (even warnings as
 123 # errors).
 124 AT_CHECK_OUTPUT([foo.y], [%type <foo> useless],
 125                 [--defines --graph --xml --report=all -Wall -Werror],
 126                 [foo.dot foo.output foo.xml],
 127                 [1])
 128
 129 # Do not generate code when there are late errors (even warnings as
 130 # errors).
 131 AT_CHECK_OUTPUT([foo.y], [%define useless],
 132                 [--defines --graph --xml --report=all -Wall -Werror],
 133                 [foo.dot foo.output foo.xml],
 134                 [1])
 135
 136
 137 ## ------------ ##
 138 ## C++ output.  ##
 139 ## ------------ ##
 140
 141 m4_define([AT_CHECK_NO_SUBDIR_PART],
 142 [# Also make sure that the includes do not refer to the subdirectory.
 143 AT_CHECK([grep 'include .subdir/' $1.cc], 1, [])
 144 AT_CHECK([grep 'include .subdir/' $1.hh], 1, [])
 145 ])
 146
 147 AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %verbose], [],
 148                 [foo.output foo.tab.cc])
 149
 150 AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %defines %verbose], [],
 151                 [foo.output foo.tab.cc foo.tab.hh stack.hh])
 152
 153 AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %verbose %locations], [],
 154                 [foo.output foo.tab.cc])
 155
 156 AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %defines %verbose %locations], [],
 157                 [foo.output foo.tab.cc foo.tab.hh location.hh position.hh stack.hh])
 158
 159 AT_CHECK_OUTPUT([subdir/foo.yy], [%skeleton "lalr1.cc" %defines %verbose], [],
 160                 [foo.output foo.tab.cc foo.tab.hh stack.hh],
 161                 [], [AT_CHECK_NO_SUBDIR_PART([foo.tab])])
 162
 163 AT_CHECK_OUTPUT([subdir/foo.yy], [%skeleton "lalr1.cc" %defines %verbose %locations],
 164                 [-o subdir/foo.cc],
 165                 [subdir/foo.cc subdir/foo.hh subdir/foo.output subdir/location.hh subdir/position.hh subdir/stack.hh],
 166                 [], [AT_CHECK_NO_SUBDIR_PART([subdir/foo])])
 167
 168 AT_CHECK_OUTPUT([gram_dir/foo.yy],
 169                 [%skeleton "lalr1.cc" %defines %verbose %file-prefix "output_dir/foo"],
 170                 [],
 171                 [output_dir/foo.output output_dir/foo.tab.cc output_dir/foo.tab.hh output_dir/stack.hh])
 172
 173 AT_CHECK_OUTPUT([gram_dir/foo.yy],
 174                 [%skeleton "lalr1.cc" %defines %locations %verbose %file-prefix "output_dir/foo"],
 175                 [],
 176                 [output_dir/foo.output output_dir/foo.tab.cc output_dir/foo.tab.hh output_dir/location.hh output_dir/position.hh output_dir/stack.hh])
 177
 178
 179 # AT_CHECK_CONFLICTING_OUTPUT(INPUT-FILE, DIRECTIVES, FLAGS, STDERR,
 180 #                             [EXIT-STATUS])
 181 # ------------------------------------------------------------------
 182 m4_define([AT_CHECK_CONFLICTING_OUTPUT],
 183 [AT_SETUP([Conflicting output files: $2 $3])
 184 case "$1" in
 185   */*) mkdir `echo "$1" | sed 's,/.*,,'`;;
 186 esac
 187 AT_DATA([$1],
 188 [[$2
 189 %%
 190 foo: {};
 191 ]])
 192
 193 [cp ]$1[ expout]
 194 # Because an output file name conflict is still a warning, Bison exits
 195 # with status 0, so AT_BISON_CHECK does not realize that there may be no
 196 # output file against which to check the XML.  AT_BISON_CHECK_NO_XML
 197 # avoids that problem.
 198 AT_BISON_CHECK_NO_XML([$3 $1], $5, [], [$4])
 199 AT_CHECK([[cat $1]], [[0]], [expout])
 200 AT_CLEANUP
 201 ])
 202
 203 AT_CHECK_CONFLICTING_OUTPUT([foo.y],
 204 [], [--graph="foo.tab.c"],
 205 [[foo.y: warning: conflicting outputs to file 'foo.tab.c' [-Wother]
 206 ]])
 207
 208 AT_CHECK_CONFLICTING_OUTPUT([foo.y],
 209 [%defines "foo.output"], [-v],
 210 [[foo.y: warning: conflicting outputs to file 'foo.output' [-Wother]
 211 ]])
 212
 213 AT_CHECK_CONFLICTING_OUTPUT([foo.y],
 214 [%skeleton "lalr1.cc" %defines %locations], [--graph="location.hh"],
 215 [[foo.y: warning: conflicting outputs to file 'location.hh' [-Wother]
 216 ]])
 217
 218 AT_CHECK_CONFLICTING_OUTPUT([foo.y], [], [-o foo.y],
 219 [[foo.y: error: refusing to overwrite the input file 'foo.y'
 220 ]], 1)
 221
 222
 223 # AT_CHECK_OUTPUT_FILE_NAME(FILE-NAME-PREFIX, [ADDITIONAL-TESTS])
 224 # ---------------------------------------------------------------
 225 m4_define([AT_CHECK_OUTPUT_FILE_NAME],
 226 [AT_SETUP([Output file name: $1])
 227
 228 AT_BISON_OPTION_PUSHDEFS
 229 # Skip if platform doesn't support file name.  For example, Cygwin
 230 # doesn't support file names containing ":" or "\".
 231 AT_CHECK([[touch "]AS_ESCAPE([$1[.tmp]])[" || exit 77]])
 232
 233 AT_DATA_GRAMMAR([glr.y],
 234 [[%glr-parser
 235 %code {
 236 ]AT_YYERROR_DECLARE_EXTERN[
 237 ]AT_YYLEX_DECLARE_EXTERN[
 238 }
 239 %%
 240 start: {};
 241 ]])
 242 AT_BISON_CHECK([-o "AS_ESCAPE([$1.c])" --defines="AS_ESCAPE([$1.h])" glr.y])
 243 AT_CHECK([ls "AS_ESCAPE([$1.c])" "AS_ESCAPE([$1.h])"], [], [ignore])
 244 AT_COMPILE([glr.o], [-c "AS_ESCAPE([$1.c])"])
 245 $2
 246
 247 AT_DATA_GRAMMAR([cxx.y],
 248 [[%skeleton "lalr1.cc"
 249 %code { int yylex (yy::parser::semantic_type*); }
 250 %%
 251 start: {};
 252 ]])
 253 AT_BISON_CHECK([-o "AS_ESCAPE([$1.cc])" --defines="AS_ESCAPE([$1.hh])" cxx.y])
 254 AT_CHECK([ls "AS_ESCAPE([$1.cc])" "AS_ESCAPE([$1.hh])"], [], [ignore])
 255 AT_COMPILE_CXX([cxx.o], [-c "AS_ESCAPE([$1.cc])"])
 256 $2
 257
 258 AT_BISON_OPTION_POPDEFS
 259 AT_CLEANUP
 260 ])
 261
 262 # Notice that the header file name here cannot contain
 263 # '"' since FILENAME in '#include "FILENAME"' cannot.
 264 AT_CHECK_OUTPUT_FILE_NAME([[`~!@#$%^&*()-=_+{}[]|\:;<>, .']])
 265 dnl Work around a bug in m4_expand that broke AT_SETUP in autoconf 2.62,
 266 dnl by using the definition from 2.63.
 267 m4_version_prereq([2.63], [],
 268 [m4_define([m4_expand], [_$0(-=<{($1)}>=-)])
 269 m4_define([_m4_expand],
 270 [m4_changequote([-=<{(], [)}>=-])$1m4_changequote([, ])])])
 271 AT_CHECK_OUTPUT_FILE_NAME([[(]])
 272 AT_CHECK_OUTPUT_FILE_NAME([[)]])
 273 AT_CHECK_OUTPUT_FILE_NAME([[@%:@]])
 274 AT_CHECK_OUTPUT_FILE_NAME([[@@]])
 275 AT_CHECK_OUTPUT_FILE_NAME([[@{]])
 276 AT_CHECK_OUTPUT_FILE_NAME([[@}]])
 277 AT_CHECK_OUTPUT_FILE_NAME([[@<:@]])
 278 AT_CHECK_OUTPUT_FILE_NAME([[@:>@]])
 279
 280
 281 # AT_TEST(SETUP-NAME, GRAMMAR, DOT-BODY)
 282 # --------------------------------------
 283 # Check that the DOT graph for GRAMMAR is DOT-BODY.
 284 m4_pushdef([AT_TEST],
 285 [AT_SETUP([$1])
 286 AT_KEYWORDS([[graph]])
 287 AT_DATA([[input.y]], [$2])
 288 AT_BISON_CHECK([[-rall --graph input.y]], [0], [[]], [[ignore]])
 289 AT_CHECK([[grep -v // input.dot]], [0],
 290 [[
 291 digraph "input.y"
 292 {
 293   node [fontname = courier, shape = box, colorscheme = paired6]
 294   edge [fontname = courier]
 295   ]$3[}
 296 ]])
 297 AT_CLEANUP
 298 ])
 299
 300
 301 ## ------------------------ ##
 302 ## Graph with no conflicts. ##
 303 ## ------------------------ ##
 304
 305 AT_TEST([Graph with no conflicts],
 306 [[%%
 307 exp: a '?' b;
 308 a: ;
 309 b: 'b';
 310 ]],
 311 [[
 312   0 [label="State 0\n\l  0 $accept: . exp $end\l  1 exp: . a '?' b\l  2 a: . %empty\l"]
 313   0 -> 1 [style=dashed label="exp"]
 314   0 -> 2 [style=dashed label="a"]
 315   0 -> "0R2" [style=solid]
 316  "0R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
 317   1 [label="State 1\n\l  0 $accept: exp . $end\l"]
 318   1 -> 3 [style=solid label="$end"]
 319   2 [label="State 2\n\l  1 exp: a . '?' b\l"]
 320   2 -> 4 [style=solid label="'?'"]
 321   3 [label="State 3\n\l  0 $accept: exp $end .\l"]
 322   3 -> "3R0" [style=solid]
 323  "3R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
 324   4 [label="State 4\n\l  1 exp: a '?' . b\l  3 b: . 'b'\l"]
 325   4 -> 5 [style=solid label="'b'"]
 326   4 -> 6 [style=dashed label="b"]
 327   5 [label="State 5\n\l  3 b: 'b' .\l"]
 328   5 -> "5R3" [style=solid]
 329  "5R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
 330   6 [label="State 6\n\l  1 exp: a '?' b .\l"]
 331   6 -> "6R1" [style=solid]
 332  "6R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
 333 ]])
 334
 335 ## ------------------------ ##
 336 ## Graph with unsolved S/R. ##
 337 ## ------------------------ ##
 338
 339 AT_TEST([Graph with unsolved S/R],
 340 [[%%
 341 start:
 342     'a'
 343   | empty_a 'a'
 344   | 'b'
 345   | empty_b 'b'
 346   | 'c'
 347   | empty_c 'c'
 348   ;
 349 empty_a: %prec 'a';
 350 empty_b: %prec 'b';
 351 empty_c: %prec 'c';
 352 ]],
 353 [[
 354   0 [label="State 0\n\l  0 $accept: . start $end\l  1 start: . 'a'\l  2      | . empty_a 'a'\l  3      | . 'b'\l  4      | . empty_b 'b'\l  5      | . 'c'\l  6      | . empty_c 'c'\l  7 empty_a: . %empty  ['a']\l  8 empty_b: . %empty  ['b']\l  9 empty_c: . %empty  ['c']\l"]
 355   0 -> 1 [style=solid label="'a'"]
 356   0 -> 2 [style=solid label="'b'"]
 357   0 -> 3 [style=solid label="'c'"]
 358   0 -> 4 [style=dashed label="start"]
 359   0 -> 5 [style=dashed label="empty_a"]
 360   0 -> 6 [style=dashed label="empty_b"]
 361   0 -> 7 [style=dashed label="empty_c"]
 362   0 -> "0R7d" [label="['a']", style=solid]
 363  "0R7d" [label="R7", fillcolor=5, shape=diamond, style=filled]
 364   0 -> "0R8d" [label="['b']", style=solid]
 365  "0R8d" [label="R8", fillcolor=5, shape=diamond, style=filled]
 366   0 -> "0R9d" [label="['c']", style=solid]
 367  "0R9d" [label="R9", fillcolor=5, shape=diamond, style=filled]
 368   1 [label="State 1\n\l  1 start: 'a' .\l"]
 369   1 -> "1R1" [style=solid]
 370  "1R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
 371   2 [label="State 2\n\l  3 start: 'b' .\l"]
 372   2 -> "2R3" [style=solid]
 373  "2R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
 374   3 [label="State 3\n\l  5 start: 'c' .\l"]
 375   3 -> "3R5" [style=solid]
 376  "3R5" [label="R5", fillcolor=3, shape=diamond, style=filled]
 377   4 [label="State 4\n\l  0 $accept: start . $end\l"]
 378   4 -> 8 [style=solid label="$end"]
 379   5 [label="State 5\n\l  2 start: empty_a . 'a'\l"]
 380   5 -> 9 [style=solid label="'a'"]
 381   6 [label="State 6\n\l  4 start: empty_b . 'b'\l"]
 382   6 -> 10 [style=solid label="'b'"]
 383   7 [label="State 7\n\l  6 start: empty_c . 'c'\l"]
 384   7 -> 11 [style=solid label="'c'"]
 385   8 [label="State 8\n\l  0 $accept: start $end .\l"]
 386   8 -> "8R0" [style=solid]
 387  "8R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
 388   9 [label="State 9\n\l  2 start: empty_a 'a' .\l"]
 389   9 -> "9R2" [style=solid]
 390  "9R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
 391   10 [label="State 10\n\l  4 start: empty_b 'b' .\l"]
 392   10 -> "10R4" [style=solid]
 393  "10R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
 394   11 [label="State 11\n\l  6 start: empty_c 'c' .\l"]
 395   11 -> "11R6" [style=solid]
 396  "11R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
 397 ]])
 398
 399 ## ---------------------- ##
 400 ## Graph with solved S/R. ##
 401 ## ---------------------- ##
 402
 403 AT_TEST([Graph with solved S/R],
 404 [[%left 'a'
 405 %right 'b'
 406 %right 'c'
 407 %%
 408 start:
 409     'a'
 410   | empty_a 'a'
 411   | 'b'
 412   | empty_b 'b'
 413   | 'c'
 414   | empty_c 'c'
 415   ;
 416 empty_a: %prec 'a';
 417 empty_b: %prec 'b';
 418 empty_c: %prec 'c';
 419 ]],
 420 [[
 421   0 [label="State 0\n\l  0 $accept: . start $end\l  1 start: . 'a'\l  2      | . empty_a 'a'\l  3      | . 'b'\l  4      | . empty_b 'b'\l  5      | . 'c'\l  6      | . empty_c 'c'\l  7 empty_a: . %empty  ['a']\l  8 empty_b: . %empty  []\l  9 empty_c: . %empty  []\l"]
 422   0 -> 1 [style=solid label="'b'"]
 423   0 -> 2 [style=solid label="'c'"]
 424   0 -> 3 [style=dashed label="start"]
 425   0 -> 4 [style=dashed label="empty_a"]
 426   0 -> 5 [style=dashed label="empty_b"]
 427   0 -> 6 [style=dashed label="empty_c"]
 428   0 -> "0R7" [style=solid]
 429  "0R7" [label="R7", fillcolor=3, shape=diamond, style=filled]
 430   1 [label="State 1\n\l  3 start: 'b' .\l"]
 431   1 -> "1R3" [style=solid]
 432  "1R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
 433   2 [label="State 2\n\l  5 start: 'c' .\l"]
 434   2 -> "2R5" [style=solid]
 435  "2R5" [label="R5", fillcolor=3, shape=diamond, style=filled]
 436   3 [label="State 3\n\l  0 $accept: start . $end\l"]
 437   3 -> 7 [style=solid label="$end"]
 438   4 [label="State 4\n\l  2 start: empty_a . 'a'\l"]
 439   4 -> 8 [style=solid label="'a'"]
 440   5 [label="State 5\n\l  4 start: empty_b . 'b'\l"]
 441   5 -> 9 [style=solid label="'b'"]
 442   6 [label="State 6\n\l  6 start: empty_c . 'c'\l"]
 443   6 -> 10 [style=solid label="'c'"]
 444   7 [label="State 7\n\l  0 $accept: start $end .\l"]
 445   7 -> "7R0" [style=solid]
 446  "7R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
 447   8 [label="State 8\n\l  2 start: empty_a 'a' .\l"]
 448   8 -> "8R2" [style=solid]
 449  "8R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
 450   9 [label="State 9\n\l  4 start: empty_b 'b' .\l"]
 451   9 -> "9R4" [style=solid]
 452  "9R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
 453   10 [label="State 10\n\l  6 start: empty_c 'c' .\l"]
 454   10 -> "10R6" [style=solid]
 455  "10R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
 456 ]])
 457
 458 ## ---------------- ##
 459 ## Graph with  R/R. ##
 460 ## ---------------- ##
 461
 462 AT_TEST([Graph with R/R],
 463 [[%%
 464 exp: a | b;
 465 a: ;
 466 b: ;
 467 ]],
 468 [[
 469   0 [label="State 0\n\l  0 $accept: . exp $end\l  1 exp: . a\l  2    | . b\l  3 a: . %empty  [$end]\l  4 b: . %empty  [$end]\l"]
 470   0 -> 1 [style=dashed label="exp"]
 471   0 -> 2 [style=dashed label="a"]
 472   0 -> 3 [style=dashed label="b"]
 473   0 -> "0R3" [style=solid]
 474  "0R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
 475   0 -> "0R4d" [label="[$end]", style=solid]
 476  "0R4d" [label="R4", fillcolor=5, shape=diamond, style=filled]
 477   1 [label="State 1\n\l  0 $accept: exp . $end\l"]
 478   1 -> 4 [style=solid label="$end"]
 479   2 [label="State 2\n\l  1 exp: a .\l"]
 480   2 -> "2R1" [style=solid]
 481  "2R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
 482   3 [label="State 3\n\l  2 exp: b .\l"]
 483   3 -> "3R2" [style=solid]
 484  "3R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
 485   4 [label="State 4\n\l  0 $accept: exp $end .\l"]
 486   4 -> "4R0" [style=solid]
 487  "4R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
 488 ]])
 489
 490 ## ---------------------------------------- ##
 491 ## Graph with reductions with multiple LAT. ##
 492 ## ---------------------------------------- ##
 493
 494 AT_TEST([Graph with reductions with multiple LAT],
 495 [[%%
 496 exp: a ';' | a ';' | a '.' | b '?' | b '!' | c '?' | c ';';
 497 a: ;
 498 b: ;
 499 c: ;
 500 ]],
 501 [[
 502   0 [label="State 0\n\l  0 $accept: . exp $end\l  1 exp: . a ';'\l  2    | . a ';'\l  3    | . a '.'\l  4    | . b '?'\l  5    | . b '!'\l  6    | . c '?'\l  7    | . c ';'\l  8 a: . %empty  [';', '.']\l  9 b: . %empty  ['?', '!']\l 10 c: . %empty  [';', '?']\l"]
 503   0 -> 1 [style=dashed label="exp"]
 504   0 -> 2 [style=dashed label="a"]
 505   0 -> 3 [style=dashed label="b"]
 506   0 -> 4 [style=dashed label="c"]
 507   0 -> "0R8" [style=solid]
 508  "0R8" [label="R8", fillcolor=3, shape=diamond, style=filled]
 509   0 -> "0R9" [label="['?', '!']", style=solid]
 510  "0R9" [label="R9", fillcolor=3, shape=diamond, style=filled]
 511   0 -> "0R10d" [label="[';', '?']", style=solid]
 512  "0R10d" [label="R10", fillcolor=5, shape=diamond, style=filled]
 513   1 [label="State 1\n\l  0 $accept: exp . $end\l"]
 514   1 -> 5 [style=solid label="$end"]
 515   2 [label="State 2\n\l  1 exp: a . ';'\l  2    | a . ';'\l  3    | a . '.'\l"]
 516   2 -> 6 [style=solid label="';'"]
 517   2 -> 7 [style=solid label="'.'"]
 518   3 [label="State 3\n\l  4 exp: b . '?'\l  5    | b . '!'\l"]
 519   3 -> 8 [style=solid label="'?'"]
 520   3 -> 9 [style=solid label="'!'"]
 521   4 [label="State 4\n\l  6 exp: c . '?'\l  7    | c . ';'\l"]
 522   4 -> 10 [style=solid label="';'"]
 523   4 -> 11 [style=solid label="'?'"]
 524   5 [label="State 5\n\l  0 $accept: exp $end .\l"]
 525   5 -> "5R0" [style=solid]
 526  "5R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
 527   6 [label="State 6\n\l  1 exp: a ';' .  [$end]\l  2    | a ';' .  [$end]\l"]
 528   6 -> "6R1" [style=solid]
 529  "6R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
 530   6 -> "6R2d" [label="[$end]", style=solid]
 531  "6R2d" [label="R2", fillcolor=5, shape=diamond, style=filled]
 532   7 [label="State 7\n\l  3 exp: a '.' .\l"]
 533   7 -> "7R3" [style=solid]
 534  "7R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
 535   8 [label="State 8\n\l  4 exp: b '?' .\l"]
 536   8 -> "8R4" [style=solid]
 537  "8R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
 538   9 [label="State 9\n\l  5 exp: b '!' .\l"]
 539   9 -> "9R5" [style=solid]
 540  "9R5" [label="R5", fillcolor=3, shape=diamond, style=filled]
 541   10 [label="State 10\n\l  7 exp: c ';' .\l"]
 542   10 -> "10R7" [style=solid]
 543  "10R7" [label="R7", fillcolor=3, shape=diamond, style=filled]
 544   11 [label="State 11\n\l  6 exp: c '?' .\l"]
 545   11 -> "11R6" [style=solid]
 546  "11R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
 547 ]])
 548
 549 ## ------------------------------------------------------ ##
 550 ## Graph with a reduction rule both enabled and disabled. ##
 551 ## ------------------------------------------------------ ##
 552
 553 AT_TEST([Graph with a reduction rule both enabled and disabled],
 554 [[%%
 555 exp: ifexp | opexp | imm;
 556 ifexp: "if" exp "then" exp elseexp;
 557 elseexp: "else" exp | ;
 558 opexp: exp '+' exp;
 559 imm: '0';
 560 ]],
 561 [[
 562   0 [label="State 0\n\l  0 $accept: . exp $end\l  1 exp: . ifexp\l  2    | . opexp\l  3    | . imm\l  4 ifexp: . \"if\" exp \"then\" exp elseexp\l  7 opexp: . exp '+' exp\l  8 imm: . '0'\l"]
 563   0 -> 1 [style=solid label="\"if\""]
 564   0 -> 2 [style=solid label="'0'"]
 565   0 -> 3 [style=dashed label="exp"]
 566   0 -> 4 [style=dashed label="ifexp"]
 567   0 -> 5 [style=dashed label="opexp"]
 568   0 -> 6 [style=dashed label="imm"]
 569   1 [label="State 1\n\l  1 exp: . ifexp\l  2    | . opexp\l  3    | . imm\l  4 ifexp: . \"if\" exp \"then\" exp elseexp\l  4      | \"if\" . exp \"then\" exp elseexp\l  7 opexp: . exp '+' exp\l  8 imm: . '0'\l"]
 570   1 -> 1 [style=solid label="\"if\""]
 571   1 -> 2 [style=solid label="'0'"]
 572   1 -> 7 [style=dashed label="exp"]
 573   1 -> 4 [style=dashed label="ifexp"]
 574   1 -> 5 [style=dashed label="opexp"]
 575   1 -> 6 [style=dashed label="imm"]
 576   2 [label="State 2\n\l  8 imm: '0' .\l"]
 577   2 -> "2R8" [style=solid]
 578  "2R8" [label="R8", fillcolor=3, shape=diamond, style=filled]
 579   3 [label="State 3\n\l  0 $accept: exp . $end\l  7 opexp: exp . '+' exp\l"]
 580   3 -> 8 [style=solid label="$end"]
 581   3 -> 9 [style=solid label="'+'"]
 582   4 [label="State 4\n\l  1 exp: ifexp .\l"]
 583   4 -> "4R1" [style=solid]
 584  "4R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
 585   5 [label="State 5\n\l  2 exp: opexp .\l"]
 586   5 -> "5R2" [style=solid]
 587  "5R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
 588   6 [label="State 6\n\l  3 exp: imm .\l"]
 589   6 -> "6R3" [style=solid]
 590  "6R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
 591   7 [label="State 7\n\l  4 ifexp: \"if\" exp . \"then\" exp elseexp\l  7 opexp: exp . '+' exp\l"]
 592   7 -> 10 [style=solid label="\"then\""]
 593   7 -> 9 [style=solid label="'+'"]
 594   8 [label="State 8\n\l  0 $accept: exp $end .\l"]
 595   8 -> "8R0" [style=solid]
 596  "8R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
 597   9 [label="State 9\n\l  1 exp: . ifexp\l  2    | . opexp\l  3    | . imm\l  4 ifexp: . \"if\" exp \"then\" exp elseexp\l  7 opexp: . exp '+' exp\l  7      | exp '+' . exp\l  8 imm: . '0'\l"]
 598   9 -> 1 [style=solid label="\"if\""]
 599   9 -> 2 [style=solid label="'0'"]
 600   9 -> 11 [style=dashed label="exp"]
 601   9 -> 4 [style=dashed label="ifexp"]
 602   9 -> 5 [style=dashed label="opexp"]
 603   9 -> 6 [style=dashed label="imm"]
 604   10 [label="State 10\n\l  1 exp: . ifexp\l  2    | . opexp\l  3    | . imm\l  4 ifexp: . \"if\" exp \"then\" exp elseexp\l  4      | \"if\" exp \"then\" . exp elseexp\l  7 opexp: . exp '+' exp\l  8 imm: . '0'\l"]
 605   10 -> 1 [style=solid label="\"if\""]
 606   10 -> 2 [style=solid label="'0'"]
 607   10 -> 12 [style=dashed label="exp"]
 608   10 -> 4 [style=dashed label="ifexp"]
 609   10 -> 5 [style=dashed label="opexp"]
 610   10 -> 6 [style=dashed label="imm"]
 611   11 [label="State 11\n\l  7 opexp: exp . '+' exp\l  7      | exp '+' exp .  [$end, \"then\", \"else\", '+']\l"]
 612   11 -> 9 [style=solid label="'+'"]
 613   11 -> "11R7d" [label="['+']", style=solid]
 614  "11R7d" [label="R7", fillcolor=5, shape=diamond, style=filled]
 615   11 -> "11R7" [style=solid]
 616  "11R7" [label="R7", fillcolor=3, shape=diamond, style=filled]
 617   12 [label="State 12\n\l  4 ifexp: \"if\" exp \"then\" exp . elseexp\l  5 elseexp: . \"else\" exp\l  6        | . %empty  [$end, \"then\", \"else\", '+']\l  7 opexp: exp . '+' exp\l"]
 618   12 -> 13 [style=solid label="\"else\""]
 619   12 -> 9 [style=solid label="'+'"]
 620   12 -> 14 [style=dashed label="elseexp"]
 621   12 -> "12R6d" [label="[\"else\", '+']", style=solid]
 622  "12R6d" [label="R6", fillcolor=5, shape=diamond, style=filled]
 623   12 -> "12R6" [style=solid]
 624  "12R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
 625   13 [label="State 13\n\l  1 exp: . ifexp\l  2    | . opexp\l  3    | . imm\l  4 ifexp: . \"if\" exp \"then\" exp elseexp\l  5 elseexp: \"else\" . exp\l  7 opexp: . exp '+' exp\l  8 imm: . '0'\l"]
 626   13 -> 1 [style=solid label="\"if\""]
 627   13 -> 2 [style=solid label="'0'"]
 628   13 -> 15 [style=dashed label="exp"]
 629   13 -> 4 [style=dashed label="ifexp"]
 630   13 -> 5 [style=dashed label="opexp"]
 631   13 -> 6 [style=dashed label="imm"]
 632   14 [label="State 14\n\l  4 ifexp: \"if\" exp \"then\" exp elseexp .\l"]
 633   14 -> "14R4" [style=solid]
 634  "14R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
 635   15 [label="State 15\n\l  5 elseexp: \"else\" exp .  [$end, \"then\", \"else\", '+']\l  7 opexp: exp . '+' exp\l"]
 636   15 -> 9 [style=solid label="'+'"]
 637   15 -> "15R5d" [label="['+']", style=solid]
 638  "15R5d" [label="R5", fillcolor=5, shape=diamond, style=filled]
 639   15 -> "15R5" [style=solid]
 640  "15R5" [label="R5", fillcolor=3, shape=diamond, style=filled]
 641 ]])
 642
 643 m4_popdef([AT_TEST])