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: {};
  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 ## ------------ ##
 130 ## C++ output.  ##
 131 ## ------------ ##
 132
 133 m4_define([AT_CHECK_NO_SUBDIR_PART],
 134 [# Also make sure that the includes do not refer to the subdirectory.
 135 AT_CHECK([grep 'include .subdir/' $1.cc], 1, [])
 136 AT_CHECK([grep 'include .subdir/' $1.hh], 1, [])
 137 ])
 138
 139 AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %verbose], [],
 140                 [foo.output foo.tab.cc])
 141
 142 AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %defines %verbose], [],
 143                 [foo.output foo.tab.cc foo.tab.hh stack.hh])
 144
 145 AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %verbose %locations], [],
 146                 [foo.output foo.tab.cc])
 147
 148 AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %defines %verbose %locations], [],
 149                 [foo.output foo.tab.cc foo.tab.hh location.hh position.hh stack.hh])
 150
 151 AT_CHECK_OUTPUT([subdir/foo.yy], [%skeleton "lalr1.cc" %defines %verbose], [],
 152                 [foo.output foo.tab.cc foo.tab.hh stack.hh],
 153                 [], [AT_CHECK_NO_SUBDIR_PART([foo.tab])])
 154
 155 AT_CHECK_OUTPUT([subdir/foo.yy], [%skeleton "lalr1.cc" %defines %verbose %locations],
 156                 [-o subdir/foo.cc],
 157                 [subdir/foo.cc subdir/foo.hh subdir/foo.output subdir/location.hh subdir/position.hh subdir/stack.hh],
 158                 [], [AT_CHECK_NO_SUBDIR_PART([subdir/foo])])
 159
 160 AT_CHECK_OUTPUT([gram_dir/foo.yy],
 161                 [%skeleton "lalr1.cc" %defines %verbose %file-prefix "output_dir/foo"],
 162                 [],
 163                 [output_dir/foo.output output_dir/foo.tab.cc output_dir/foo.tab.hh output_dir/stack.hh])
 164
 165 AT_CHECK_OUTPUT([gram_dir/foo.yy],
 166                 [%skeleton "lalr1.cc" %defines %locations %verbose %file-prefix "output_dir/foo"],
 167                 [],
 168                 [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])
 169
 170
 171 # AT_CHECK_CONFLICTING_OUTPUT(INPUT-FILE, DIRECTIVES, FLAGS, STDERR,
 172 #                             [EXIT-STATUS])
 173 # ------------------------------------------------------------------
 174 m4_define([AT_CHECK_CONFLICTING_OUTPUT],
 175 [AT_SETUP([Conflicting output files: $2 $3])
 176 case "$1" in
 177   */*) mkdir `echo "$1" | sed 's,/.*,,'`;;
 178 esac
 179 AT_DATA([$1],
 180 [[$2
 181 %%
 182 foo: {};
 183 ]])
 184
 185 [cp ]$1[ expout]
 186 # Because an output file name conflict is still a warning, Bison exits
 187 # with status 0, so AT_BISON_CHECK does not realize that there may be no
 188 # output file against which to check the XML.  AT_BISON_CHECK_NO_XML
 189 # avoids that problem.
 190 AT_BISON_CHECK_NO_XML([$3 $1], $5, [], [$4])
 191 AT_CHECK([[cat $1]], [[0]], [expout])
 192 AT_CLEANUP
 193 ])
 194
 195 AT_CHECK_CONFLICTING_OUTPUT([foo.y],
 196 [], [--graph="foo.tab.c"],
 197 [[foo.y: warning: conflicting outputs to file 'foo.tab.c' [-Wother]
 198 ]])
 199
 200 AT_CHECK_CONFLICTING_OUTPUT([foo.y],
 201 [%defines "foo.output"], [-v],
 202 [[foo.y: warning: conflicting outputs to file 'foo.output' [-Wother]
 203 ]])
 204
 205 AT_CHECK_CONFLICTING_OUTPUT([foo.y],
 206 [%skeleton "lalr1.cc" %defines %locations], [--graph="location.hh"],
 207 [[foo.y: warning: conflicting outputs to file 'location.hh' [-Wother]
 208 ]])
 209
 210 AT_CHECK_CONFLICTING_OUTPUT([foo.y], [], [-o foo.y],
 211 [[foo.y: error: refusing to overwrite the input file 'foo.y'
 212 ]], 1)
 213
 214
 215 # AT_CHECK_OUTPUT_FILE_NAME(FILE-NAME-PREFIX, [ADDITIONAL-TESTS])
 216 # ---------------------------------------------------------------
 217 m4_define([AT_CHECK_OUTPUT_FILE_NAME],
 218 [AT_SETUP([Output file name: $1])
 219
 220 AT_BISON_OPTION_PUSHDEFS
 221 # Skip if platform doesn't support file name.  For example, Cygwin
 222 # doesn't support file names containing ":" or "\".
 223 AT_CHECK([[touch "]AS_ESCAPE([$1[.tmp]])[" || exit 77]])
 224
 225 AT_DATA_GRAMMAR([glr.y],
 226 [[%glr-parser
 227 %code {
 228 ]AT_YYERROR_DECLARE_EXTERN[
 229 ]AT_YYLEX_DECLARE_EXTERN[
 230 }
 231 %%
 232 start: {};
 233 ]])
 234 AT_BISON_CHECK([-o "AS_ESCAPE([$1.c])" --defines="AS_ESCAPE([$1.h])" glr.y])
 235 AT_CHECK([ls "AS_ESCAPE([$1.c])" "AS_ESCAPE([$1.h])"], [], [ignore])
 236 AT_COMPILE([glr.o], [-c "AS_ESCAPE([$1.c])"])
 237 $2
 238
 239 AT_DATA_GRAMMAR([cxx.y],
 240 [[%skeleton "lalr1.cc"
 241 %code { int yylex (yy::parser::semantic_type*); }
 242 %%
 243 start: {};
 244 ]])
 245 AT_BISON_CHECK([-o "AS_ESCAPE([$1.cc])" --defines="AS_ESCAPE([$1.hh])" cxx.y])
 246 AT_CHECK([ls "AS_ESCAPE([$1.cc])" "AS_ESCAPE([$1.hh])"], [], [ignore])
 247 AT_COMPILE_CXX([cxx.o], [-c "AS_ESCAPE([$1.cc])"])
 248 $2
 249
 250 AT_BISON_OPTION_POPDEFS
 251 AT_CLEANUP
 252 ])
 253
 254 # Notice that the header file name here cannot contain
 255 # '"' since FILENAME in '#include "FILENAME"' cannot.
 256 AT_CHECK_OUTPUT_FILE_NAME([[`~!@#$%^&*()-=_+{}[]|\:;<>, .']])
 257 dnl Work around a bug in m4_expand that broke AT_SETUP in autoconf 2.62,
 258 dnl by using the definition from 2.63.
 259 m4_version_prereq([2.63], [],
 260 [m4_define([m4_expand], [_$0(-=<{($1)}>=-)])
 261 m4_define([_m4_expand],
 262 [m4_changequote([-=<{(], [)}>=-])$1m4_changequote([, ])])])
 263 AT_CHECK_OUTPUT_FILE_NAME([[(]])
 264 AT_CHECK_OUTPUT_FILE_NAME([[)]])
 265 AT_CHECK_OUTPUT_FILE_NAME([[@%:@]])
 266 AT_CHECK_OUTPUT_FILE_NAME([[@@]])
 267 AT_CHECK_OUTPUT_FILE_NAME([[@{]])
 268 AT_CHECK_OUTPUT_FILE_NAME([[@}]])
 269 AT_CHECK_OUTPUT_FILE_NAME([[@<:@]])
 270 AT_CHECK_OUTPUT_FILE_NAME([[@:>@]])
 271
 272
 273 # AT_TEST(SETUP-NAME, GRAMMAR, DOT-BODY)
 274 # --------------------------------------
 275 # Check that the DOT graph for GRAMMAR is DOT-BODY.
 276 m4_pushdef([AT_TEST],
 277 [AT_SETUP([$1])
 278 AT_KEYWORDS([[graph]])
 279 AT_DATA([[input.y]], [$2])
 280 AT_BISON_CHECK([[-rall --graph input.y]], [0], [[]], [[ignore]])
 281 AT_CHECK([[grep -v // input.dot]], [0],
 282 [[
 283 digraph "input.y"
 284 {
 285   node [fontname = courier, shape = box, colorscheme = paired6]
 286   edge [fontname = courier]
 287   ]$3[}
 288 ]])
 289 AT_CLEANUP
 290 ])
 291
 292
 293 ## ------------------------ ##
 294 ## Graph with no conflicts. ##
 295 ## ------------------------ ##
 296
 297 AT_TEST([Graph with no conflicts],
 298 [[%%
 299 exp: a '?' b;
 300 a: ;
 301 b: 'b';
 302 ]],
 303 [[
 304   0 [label="State 0\n\l  0 $accept: . exp $end\l  1 exp: . a '?' b\l  2 a: . %empty\l"]
 305   0 -> 1 [style=dashed label="exp"]
 306   0 -> 2 [style=dashed label="a"]
 307   0 -> "0R2" [style=solid]
 308  "0R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
 309   1 [label="State 1\n\l  0 $accept: exp . $end\l"]
 310   1 -> 3 [style=solid label="$end"]
 311   2 [label="State 2\n\l  1 exp: a . '?' b\l"]
 312   2 -> 4 [style=solid label="'?'"]
 313   3 [label="State 3\n\l  0 $accept: exp $end .\l"]
 314   3 -> "3R0" [style=solid]
 315  "3R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
 316   4 [label="State 4\n\l  1 exp: a '?' . b\l  3 b: . 'b'\l"]
 317   4 -> 5 [style=solid label="'b'"]
 318   4 -> 6 [style=dashed label="b"]
 319   5 [label="State 5\n\l  3 b: 'b' .\l"]
 320   5 -> "5R3" [style=solid]
 321  "5R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
 322   6 [label="State 6\n\l  1 exp: a '?' b .\l"]
 323   6 -> "6R1" [style=solid]
 324  "6R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
 325 ]])
 326
 327 ## ------------------------ ##
 328 ## Graph with unsolved S/R. ##
 329 ## ------------------------ ##
 330
 331 AT_TEST([Graph with unsolved S/R],
 332 [[%%
 333 start:
 334     'a'
 335   | empty_a 'a'
 336   | 'b'
 337   | empty_b 'b'
 338   | 'c'
 339   | empty_c 'c'
 340   ;
 341 empty_a: %prec 'a';
 342 empty_b: %prec 'b';
 343 empty_c: %prec 'c';
 344 ]],
 345 [[
 346   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"]
 347   0 -> 1 [style=solid label="'a'"]
 348   0 -> 2 [style=solid label="'b'"]
 349   0 -> 3 [style=solid label="'c'"]
 350   0 -> 4 [style=dashed label="start"]
 351   0 -> 5 [style=dashed label="empty_a"]
 352   0 -> 6 [style=dashed label="empty_b"]
 353   0 -> 7 [style=dashed label="empty_c"]
 354   0 -> "0R7d" [label="['a']", style=solid]
 355  "0R7d" [label="R7", fillcolor=5, shape=diamond, style=filled]
 356   0 -> "0R8d" [label="['b']", style=solid]
 357  "0R8d" [label="R8", fillcolor=5, shape=diamond, style=filled]
 358   0 -> "0R9d" [label="['c']", style=solid]
 359  "0R9d" [label="R9", fillcolor=5, shape=diamond, style=filled]
 360   1 [label="State 1\n\l  1 start: 'a' .\l"]
 361   1 -> "1R1" [style=solid]
 362  "1R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
 363   2 [label="State 2\n\l  3 start: 'b' .\l"]
 364   2 -> "2R3" [style=solid]
 365  "2R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
 366   3 [label="State 3\n\l  5 start: 'c' .\l"]
 367   3 -> "3R5" [style=solid]
 368  "3R5" [label="R5", fillcolor=3, shape=diamond, style=filled]
 369   4 [label="State 4\n\l  0 $accept: start . $end\l"]
 370   4 -> 8 [style=solid label="$end"]
 371   5 [label="State 5\n\l  2 start: empty_a . 'a'\l"]
 372   5 -> 9 [style=solid label="'a'"]
 373   6 [label="State 6\n\l  4 start: empty_b . 'b'\l"]
 374   6 -> 10 [style=solid label="'b'"]
 375   7 [label="State 7\n\l  6 start: empty_c . 'c'\l"]
 376   7 -> 11 [style=solid label="'c'"]
 377   8 [label="State 8\n\l  0 $accept: start $end .\l"]
 378   8 -> "8R0" [style=solid]
 379  "8R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
 380   9 [label="State 9\n\l  2 start: empty_a 'a' .\l"]
 381   9 -> "9R2" [style=solid]
 382  "9R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
 383   10 [label="State 10\n\l  4 start: empty_b 'b' .\l"]
 384   10 -> "10R4" [style=solid]
 385  "10R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
 386   11 [label="State 11\n\l  6 start: empty_c 'c' .\l"]
 387   11 -> "11R6" [style=solid]
 388  "11R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
 389 ]])
 390
 391 ## ---------------------- ##
 392 ## Graph with solved S/R. ##
 393 ## ---------------------- ##
 394
 395 AT_TEST([Graph with solved S/R],
 396 [[%left 'a'
 397 %right 'b'
 398 %right 'c'
 399 %%
 400 start:
 401     'a'
 402   | empty_a 'a'
 403   | 'b'
 404   | empty_b 'b'
 405   | 'c'
 406   | empty_c 'c'
 407   ;
 408 empty_a: %prec 'a';
 409 empty_b: %prec 'b';
 410 empty_c: %prec 'c';
 411 ]],
 412 [[
 413   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"]
 414   0 -> 1 [style=solid label="'b'"]
 415   0 -> 2 [style=solid label="'c'"]
 416   0 -> 3 [style=dashed label="start"]
 417   0 -> 4 [style=dashed label="empty_a"]
 418   0 -> 5 [style=dashed label="empty_b"]
 419   0 -> 6 [style=dashed label="empty_c"]
 420   0 -> "0R7" [style=solid]
 421  "0R7" [label="R7", fillcolor=3, shape=diamond, style=filled]
 422   1 [label="State 1\n\l  3 start: 'b' .\l"]
 423   1 -> "1R3" [style=solid]
 424  "1R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
 425   2 [label="State 2\n\l  5 start: 'c' .\l"]
 426   2 -> "2R5" [style=solid]
 427  "2R5" [label="R5", fillcolor=3, shape=diamond, style=filled]
 428   3 [label="State 3\n\l  0 $accept: start . $end\l"]
 429   3 -> 7 [style=solid label="$end"]
 430   4 [label="State 4\n\l  2 start: empty_a . 'a'\l"]
 431   4 -> 8 [style=solid label="'a'"]
 432   5 [label="State 5\n\l  4 start: empty_b . 'b'\l"]
 433   5 -> 9 [style=solid label="'b'"]
 434   6 [label="State 6\n\l  6 start: empty_c . 'c'\l"]
 435   6 -> 10 [style=solid label="'c'"]
 436   7 [label="State 7\n\l  0 $accept: start $end .\l"]
 437   7 -> "7R0" [style=solid]
 438  "7R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
 439   8 [label="State 8\n\l  2 start: empty_a 'a' .\l"]
 440   8 -> "8R2" [style=solid]
 441  "8R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
 442   9 [label="State 9\n\l  4 start: empty_b 'b' .\l"]
 443   9 -> "9R4" [style=solid]
 444  "9R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
 445   10 [label="State 10\n\l  6 start: empty_c 'c' .\l"]
 446   10 -> "10R6" [style=solid]
 447  "10R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
 448 ]])
 449
 450 ## ---------------- ##
 451 ## Graph with  R/R. ##
 452 ## ---------------- ##
 453
 454 AT_TEST([Graph with R/R],
 455 [[%%
 456 exp: a | b;
 457 a: ;
 458 b: ;
 459 ]],
 460 [[
 461   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  [$end]\l"]
 462   0 -> 1 [style=dashed label="exp"]
 463   0 -> 2 [style=dashed label="a"]
 464   0 -> 3 [style=dashed label="b"]
 465   0 -> "0R3" [style=solid]
 466  "0R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
 467   0 -> "0R4d" [label="[$end]", style=solid]
 468  "0R4d" [label="R4", fillcolor=5, shape=diamond, style=filled]
 469   1 [label="State 1\n\l  0 $accept: exp . $end\l"]
 470   1 -> 4 [style=solid label="$end"]
 471   2 [label="State 2\n\l  1 exp: a .\l"]
 472   2 -> "2R1" [style=solid]
 473  "2R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
 474   3 [label="State 3\n\l  2 exp: b .\l"]
 475   3 -> "3R2" [style=solid]
 476  "3R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
 477   4 [label="State 4\n\l  0 $accept: exp $end .\l"]
 478   4 -> "4R0" [style=solid]
 479  "4R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
 480 ]])
 481
 482 ## ---------------------------------------- ##
 483 ## Graph with reductions with multiple LAT. ##
 484 ## ---------------------------------------- ##
 485
 486 AT_TEST([Graph with reductions with multiple LAT],
 487 [[%%
 488 exp: a ';' | a ';' | a '.' | b '?' | b '!' | c '?' | c ';';
 489 a: ;
 490 b: ;
 491 c: ;
 492 ]],
 493 [[
 494   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"]
 495   0 -> 1 [style=dashed label="exp"]
 496   0 -> 2 [style=dashed label="a"]
 497   0 -> 3 [style=dashed label="b"]
 498   0 -> 4 [style=dashed label="c"]
 499   0 -> "0R8" [style=solid]
 500  "0R8" [label="R8", fillcolor=3, shape=diamond, style=filled]
 501   0 -> "0R9" [label="['?', '!']", style=solid]
 502  "0R9" [label="R9", fillcolor=3, shape=diamond, style=filled]
 503   0 -> "0R10d" [label="[';', '?']", style=solid]
 504  "0R10d" [label="R10", fillcolor=5, shape=diamond, style=filled]
 505   1 [label="State 1\n\l  0 $accept: exp . $end\l"]
 506   1 -> 5 [style=solid label="$end"]
 507   2 [label="State 2\n\l  1 exp: a . ';'\l  2    | a . ';'\l  3    | a . '.'\l"]
 508   2 -> 6 [style=solid label="';'"]
 509   2 -> 7 [style=solid label="'.'"]
 510   3 [label="State 3\n\l  4 exp: b . '?'\l  5    | b . '!'\l"]
 511   3 -> 8 [style=solid label="'?'"]
 512   3 -> 9 [style=solid label="'!'"]
 513   4 [label="State 4\n\l  6 exp: c . '?'\l  7    | c . ';'\l"]
 514   4 -> 10 [style=solid label="';'"]
 515   4 -> 11 [style=solid label="'?'"]
 516   5 [label="State 5\n\l  0 $accept: exp $end .\l"]
 517   5 -> "5R0" [style=solid]
 518  "5R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
 519   6 [label="State 6\n\l  1 exp: a ';' .  [$end]\l  2    | a ';' .  [$end]\l"]
 520   6 -> "6R1" [style=solid]
 521  "6R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
 522   6 -> "6R2d" [label="[$end]", style=solid]
 523  "6R2d" [label="R2", fillcolor=5, shape=diamond, style=filled]
 524   7 [label="State 7\n\l  3 exp: a '.' .\l"]
 525   7 -> "7R3" [style=solid]
 526  "7R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
 527   8 [label="State 8\n\l  4 exp: b '?' .\l"]
 528   8 -> "8R4" [style=solid]
 529  "8R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
 530   9 [label="State 9\n\l  5 exp: b '!' .\l"]
 531   9 -> "9R5" [style=solid]
 532  "9R5" [label="R5", fillcolor=3, shape=diamond, style=filled]
 533   10 [label="State 10\n\l  7 exp: c ';' .\l"]
 534   10 -> "10R7" [style=solid]
 535  "10R7" [label="R7", fillcolor=3, shape=diamond, style=filled]
 536   11 [label="State 11\n\l  6 exp: c '?' .\l"]
 537   11 -> "11R6" [style=solid]
 538  "11R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
 539 ]])
 540
 541 ## ------------------------------------------------------ ##
 542 ## Graph with a reduction rule both enabled and disabled. ##
 543 ## ------------------------------------------------------ ##
 544
 545 AT_TEST([Graph with a reduction rule both enabled and disabled],
 546 [[%%
 547 exp: ifexp | opexp | imm;
 548 ifexp: "if" exp "then" exp elseexp;
 549 elseexp: "else" exp | ;
 550 opexp: exp '+' exp;
 551 imm: '0';
 552 ]],
 553 [[
 554   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"]
 555   0 -> 1 [style=solid label="\"if\""]
 556   0 -> 2 [style=solid label="'0'"]
 557   0 -> 3 [style=dashed label="exp"]
 558   0 -> 4 [style=dashed label="ifexp"]
 559   0 -> 5 [style=dashed label="opexp"]
 560   0 -> 6 [style=dashed label="imm"]
 561   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"]
 562   1 -> 1 [style=solid label="\"if\""]
 563   1 -> 2 [style=solid label="'0'"]
 564   1 -> 7 [style=dashed label="exp"]
 565   1 -> 4 [style=dashed label="ifexp"]
 566   1 -> 5 [style=dashed label="opexp"]
 567   1 -> 6 [style=dashed label="imm"]
 568   2 [label="State 2\n\l  8 imm: '0' .\l"]
 569   2 -> "2R8" [style=solid]
 570  "2R8" [label="R8", fillcolor=3, shape=diamond, style=filled]
 571   3 [label="State 3\n\l  0 $accept: exp . $end\l  7 opexp: exp . '+' exp\l"]
 572   3 -> 8 [style=solid label="$end"]
 573   3 -> 9 [style=solid label="'+'"]
 574   4 [label="State 4\n\l  1 exp: ifexp .\l"]
 575   4 -> "4R1" [style=solid]
 576  "4R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
 577   5 [label="State 5\n\l  2 exp: opexp .\l"]
 578   5 -> "5R2" [style=solid]
 579  "5R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
 580   6 [label="State 6\n\l  3 exp: imm .\l"]
 581   6 -> "6R3" [style=solid]
 582  "6R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
 583   7 [label="State 7\n\l  4 ifexp: \"if\" exp . \"then\" exp elseexp\l  7 opexp: exp . '+' exp\l"]
 584   7 -> 10 [style=solid label="\"then\""]
 585   7 -> 9 [style=solid label="'+'"]
 586   8 [label="State 8\n\l  0 $accept: exp $end .\l"]
 587   8 -> "8R0" [style=solid]
 588  "8R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
 589   9 [label="State 9\n\l  1 exp: . ifexp\l  2    | . opexp\l  3    | . imm\l  4 ifexp: . \"if\" exp \"then\" exp elseexp\l  7 opexp: . exp '+' exp\l  7      | exp '+' . exp\l  8 imm: . '0'\l"]
 590   9 -> 1 [style=solid label="\"if\""]
 591   9 -> 2 [style=solid label="'0'"]
 592   9 -> 11 [style=dashed label="exp"]
 593   9 -> 4 [style=dashed label="ifexp"]
 594   9 -> 5 [style=dashed label="opexp"]
 595   9 -> 6 [style=dashed label="imm"]
 596   10 [label="State 10\n\l  1 exp: . ifexp\l  2    | . opexp\l  3    | . imm\l  4 ifexp: . \"if\" exp \"then\" exp elseexp\l  4      | \"if\" exp \"then\" . exp elseexp\l  7 opexp: . exp '+' exp\l  8 imm: . '0'\l"]
 597   10 -> 1 [style=solid label="\"if\""]
 598   10 -> 2 [style=solid label="'0'"]
 599   10 -> 12 [style=dashed label="exp"]
 600   10 -> 4 [style=dashed label="ifexp"]
 601   10 -> 5 [style=dashed label="opexp"]
 602   10 -> 6 [style=dashed label="imm"]
 603   11 [label="State 11\n\l  7 opexp: exp . '+' exp\l  7      | exp '+' exp .  [$end, \"then\", \"else\", '+']\l"]
 604   11 -> 9 [style=solid label="'+'"]
 605   11 -> "11R7d" [label="['+']", style=solid]
 606  "11R7d" [label="R7", fillcolor=5, shape=diamond, style=filled]
 607   11 -> "11R7" [style=solid]
 608  "11R7" [label="R7", fillcolor=3, shape=diamond, style=filled]
 609   12 [label="State 12\n\l  4 ifexp: \"if\" exp \"then\" exp . elseexp\l  5 elseexp: . \"else\" exp\l  6        | . %empty  [$end, \"then\", \"else\", '+']\l  7 opexp: exp . '+' exp\l"]
 610   12 -> 13 [style=solid label="\"else\""]
 611   12 -> 9 [style=solid label="'+'"]
 612   12 -> 14 [style=dashed label="elseexp"]
 613   12 -> "12R6d" [label="[\"else\", '+']", style=solid]
 614  "12R6d" [label="R6", fillcolor=5, shape=diamond, style=filled]
 615   12 -> "12R6" [style=solid]
 616  "12R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
 617   13 [label="State 13\n\l  1 exp: . ifexp\l  2    | . opexp\l  3    | . imm\l  4 ifexp: . \"if\" exp \"then\" exp elseexp\l  5 elseexp: \"else\" . exp\l  7 opexp: . exp '+' exp\l  8 imm: . '0'\l"]
 618   13 -> 1 [style=solid label="\"if\""]
 619   13 -> 2 [style=solid label="'0'"]
 620   13 -> 15 [style=dashed label="exp"]
 621   13 -> 4 [style=dashed label="ifexp"]
 622   13 -> 5 [style=dashed label="opexp"]
 623   13 -> 6 [style=dashed label="imm"]
 624   14 [label="State 14\n\l  4 ifexp: \"if\" exp \"then\" exp elseexp .\l"]
 625   14 -> "14R4" [style=solid]
 626  "14R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
 627   15 [label="State 15\n\l  5 elseexp: \"else\" exp .  [$end, \"then\", \"else\", '+']\l  7 opexp: exp . '+' exp\l"]
 628   15 -> 9 [style=solid label="'+'"]
 629   15 -> "15R5d" [label="['+']", style=solid]
 630  "15R5d" [label="R5", fillcolor=5, shape=diamond, style=filled]
 631   15 -> "15R5" [style=solid]
 632  "15R5" [label="R5", fillcolor=3, shape=diamond, style=filled]
 633 ]])
 634
 635 m4_popdef([AT_TEST])