# Checking the output filenames. -*- Autotest -*-
-# Copyright 2000, 2001 Free Software Foundation, Inc.
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
+# Copyright (C) 2000-2002, 2005-2013 Free Software Foundation, Inc.
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
-
+#
# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-# 02111-1307, USA.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
AT_BANNER([[Output file names.]])
-# AT_CHECK_OUTPUT(INPUT-FILE, [DIRECTIVES], [FLAGS], EXPECTED-FILES)
-# ------------------------------------------------------------------
+# AT_CHECK_OUTPUT(INPUT-FILE, [DIRECTIVES], [FLAGS], EXPECTED-FILES, [SHELLIO],
+# [ADDITIONAL-TESTS], [PRE-TESTS])
+# -----------------------------------------------------------------------------
m4_define([AT_CHECK_OUTPUT],
-[AT_SETUP([Output files: $2 & $3.])
-AT_DATA([$1],
-[[$2
+[AT_SETUP([[Output files: ]$2 $3 $5])[
+]$7[
+for file in ]$1 $4[; do
+ case $file in
+ */*) mkdir -p `echo "$file" | sed 's,/[^/]*,,'`;;
+ esac
+done
+]AT_DATA([$1],
+[$2[
%%
-foo: {}
-]])
+foo: {};
+]])[
-AT_CHECK([bison $3 $1], 0)
-AT_CHECK([ls $4], [], [ignore])
-AT_CLEANUP($4)
-])
+]AT_BISON_CHECK([$3 $1 $5], 0)[
+# Ignore the files non-generated files
+]AT_CHECK([find . -type f -and -not -path './$1' -and -not -path './testsuite.log' |
+ sed 's,\./,,' |
+ sort |
+ xargs echo],
+ [], [$4
+])[
+]$6[
+]AT_CLEANUP[
+]])
AT_CHECK_OUTPUT([foo.y], [], [-dv],
[foo.output foo.tab.c foo.tab.h])
+
+# Some versions of Valgrind (at least valgrind-3.6.0.SVN-Debian) report
+# "fgrep: write error: Bad file descriptor" when stdout is closed, so we
+# skip this test group during maintainer-check-valgrind.
+AT_CHECK_OUTPUT([foo.y], [], [-dv],
+ [foo.output foo.tab.c foo.tab.h],
+ [>&-], [],
+ [AT_CHECK([[case "$PREBISON" in *valgrind*) exit 77;; esac]])])
+
AT_CHECK_OUTPUT([foo.y], [], [-dv -o foo.c],
[foo.c foo.h foo.output])
AT_CHECK_OUTPUT([foo.y], [], [-dv -o foo.tab.c],
[foo.output foo.tab.c foo.tab.h])
-AT_CHECK_OUTPUT([foo.y], [], [-dv -y],
- [y.output y.tab.c y.tab.h])
+
+AT_CHECK_OUTPUT([foo.y], [], [-dv -g --xml -y],
+ [y.dot y.output y.tab.c y.tab.h y.xml])
+# With '-o y.tab.c', we expect 'y.output' etc. (for compatility with Yacc).
+AT_CHECK_OUTPUT([foo.y], [], [-dv -g --xml -o y.tab.c],
+ [y.dot y.output y.tab.c y.tab.h y.xml])
+
AT_CHECK_OUTPUT([foo.y], [], [-dv -b bar],
[bar.output bar.tab.c bar.tab.h])
AT_CHECK_OUTPUT([foo.y], [], [-dv -g -o foo.c],
- [foo.c foo.h foo.output foo.vcg])
+ [foo.c foo.dot foo.h foo.output])
AT_CHECK_OUTPUT([foo.y], [%defines %verbose], [],
AT_CHECK_OUTPUT([foo.y], [%defines %verbose %yacc],[],
[y.output y.tab.c y.tab.h])
-# Exercise %output and %file-prefix
-AT_CHECK_OUTPUT([foo.y], [%file-prefix="bar" %defines %verbose], [],
+AT_CHECK_OUTPUT([foo.yy], [%defines %verbose %yacc],[],
+ [y.output y.tab.c y.tab.h])
+
+# Exercise %output and %file-prefix including deprecated '='
+AT_CHECK_OUTPUT([foo.y], [%file-prefix "bar" %defines %verbose], [],
[bar.output bar.tab.c bar.tab.h])
-AT_CHECK_OUTPUT([foo.y], [%output="bar.c" %defines %verbose %yacc],[],
- [bar.output bar.c bar.h])
+AT_CHECK_OUTPUT([foo.y], [%output "bar.c" %defines %verbose %yacc],[],
+ [bar.c bar.h bar.output])
AT_CHECK_OUTPUT([foo.y],
- [%file-prefix="baz" %output="bar.c" %defines %verbose %yacc],
+ [%file-prefix "baz" %output "bar.c" %defines %verbose %yacc],
[],
- [bar.output bar.c bar.h])
+ [bar.c bar.h bar.output])
# Check priorities of extension control.
[--defines=foo.hpp -o foo.c++],
[foo.c++ foo.hpp])
+AT_CHECK_OUTPUT([foo.yy], [%defines "foo.hpp"],
+ [-o foo.c++],
+ [foo.c++ foo.hpp])
+
AT_CHECK_OUTPUT([foo.yy], [],
[-o foo.c++ --graph=foo.gph],
[foo.c++ foo.gph])
+
+
+## ------------ ##
+## C++ output. ##
+## ------------ ##
+
+m4_define([AT_CHECK_NO_SUBDIR_PART],
+[# Also make sure that the includes do not refer to the subdirectory.
+AT_CHECK([grep 'include .subdir/' $1.cc], 1, [])
+AT_CHECK([grep 'include .subdir/' $1.hh], 1, [])
+])
+
+AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %verbose], [],
+ [foo.output foo.tab.cc])
+
+AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %defines %verbose], [],
+ [foo.output foo.tab.cc foo.tab.hh stack.hh])
+
+AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %verbose %locations], [],
+ [foo.output foo.tab.cc])
+
+AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %defines %verbose %locations], [],
+ [foo.output foo.tab.cc foo.tab.hh location.hh position.hh stack.hh])
+
+AT_CHECK_OUTPUT([subdir/foo.yy], [%skeleton "lalr1.cc" %defines %verbose], [],
+ [foo.output foo.tab.cc foo.tab.hh stack.hh],
+ [], [AT_CHECK_NO_SUBDIR_PART([foo.tab])])
+
+AT_CHECK_OUTPUT([subdir/foo.yy], [%skeleton "lalr1.cc" %defines %verbose %locations],
+ [-o subdir/foo.cc],
+ [subdir/foo.cc subdir/foo.hh subdir/foo.output subdir/location.hh subdir/position.hh subdir/stack.hh],
+ [], [AT_CHECK_NO_SUBDIR_PART([subdir/foo])])
+
+AT_CHECK_OUTPUT([gram_dir/foo.yy],
+ [%skeleton "lalr1.cc" %defines %verbose %file-prefix "output_dir/foo"],
+ [],
+ [output_dir/foo.output output_dir/foo.tab.cc output_dir/foo.tab.hh output_dir/stack.hh])
+
+AT_CHECK_OUTPUT([gram_dir/foo.yy],
+ [%skeleton "lalr1.cc" %defines %locations %verbose %file-prefix "output_dir/foo"],
+ [],
+ [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])
+
+
+# AT_CHECK_CONFLICTING_OUTPUT(INPUT-FILE, DIRECTIVES, FLAGS, STDERR,
+# [EXIT-STATUS])
+# ------------------------------------------------------------------
+m4_define([AT_CHECK_CONFLICTING_OUTPUT],
+[AT_SETUP([Conflicting output files: $2 $3])
+case "$1" in
+ */*) mkdir `echo "$1" | sed 's,/.*,,'`;;
+esac
+AT_DATA([$1],
+[[$2
+%%
+foo: {};
+]])
+
+[cp ]$1[ expout]
+# Because an output file name conflict is still a warning, Bison exits
+# with status 0, so AT_BISON_CHECK does not realize that there may be no
+# output file against which to check the XML. AT_BISON_CHECK_NO_XML
+# avoids that problem.
+AT_BISON_CHECK_NO_XML([$3 $1], $5, [], [$4])
+AT_CHECK([[cat $1]], [[0]], [expout])
+AT_CLEANUP
+])
+
+AT_CHECK_CONFLICTING_OUTPUT([foo.y],
+[], [--graph="foo.tab.c"],
+[[foo.y: warning: conflicting outputs to file 'foo.tab.c' [-Wother]
+]])
+
+AT_CHECK_CONFLICTING_OUTPUT([foo.y],
+[%defines "foo.output"], [-v],
+[[foo.y: warning: conflicting outputs to file 'foo.output' [-Wother]
+]])
+
+AT_CHECK_CONFLICTING_OUTPUT([foo.y],
+[%skeleton "lalr1.cc" %defines %locations], [--graph="location.hh"],
+[[foo.y: warning: conflicting outputs to file 'location.hh' [-Wother]
+]])
+
+AT_CHECK_CONFLICTING_OUTPUT([foo.y], [], [-o foo.y],
+[[foo.y: error: refusing to overwrite the input file 'foo.y'
+]], 1)
+
+
+# AT_CHECK_OUTPUT_FILE_NAME(FILE-NAME-PREFIX, [ADDITIONAL-TESTS])
+# ---------------------------------------------------------------
+m4_define([AT_CHECK_OUTPUT_FILE_NAME],
+[AT_SETUP([Output file name: $1])
+
+AT_BISON_OPTION_PUSHDEFS
+# Skip if platform doesn't support file name. For example, Cygwin
+# doesn't support file names containing ":" or "\".
+AT_CHECK([[touch "]AS_ESCAPE([$1[.tmp]])[" || exit 77]])
+
+AT_DATA_GRAMMAR([glr.y],
+[[%glr-parser
+%code {
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
+}
+%%
+start: {};
+]])
+AT_BISON_CHECK([-o "AS_ESCAPE([$1.c])" --defines="AS_ESCAPE([$1.h])" glr.y])
+AT_CHECK([ls "AS_ESCAPE([$1.c])" "AS_ESCAPE([$1.h])"], [], [ignore])
+AT_COMPILE([glr.o], [-c "AS_ESCAPE([$1.c])"])
+$2
+
+AT_DATA_GRAMMAR([cxx.y],
+[[%skeleton "lalr1.cc"
+%code { int yylex (yy::parser::semantic_type*); }
+%%
+start: {};
+]])
+AT_BISON_CHECK([-o "AS_ESCAPE([$1.cc])" --defines="AS_ESCAPE([$1.hh])" cxx.y])
+AT_CHECK([ls "AS_ESCAPE([$1.cc])" "AS_ESCAPE([$1.hh])"], [], [ignore])
+AT_COMPILE_CXX([cxx.o], [-c "AS_ESCAPE([$1.cc])"])
+$2
+
+AT_BISON_OPTION_POPDEFS
+AT_CLEANUP
+])
+
+# Notice that the header file name here cannot contain
+# '"' since FILENAME in '#include "FILENAME"' cannot.
+AT_CHECK_OUTPUT_FILE_NAME([[`~!@#$%^&*()-=_+{}[]|\:;<>, .']])
+dnl Work around a bug in m4_expand that broke AT_SETUP in autoconf 2.62,
+dnl by using the definition from 2.63.
+m4_version_prereq([2.63], [],
+[m4_define([m4_expand], [_$0(-=<{($1)}>=-)])
+m4_define([_m4_expand],
+[m4_changequote([-=<{(], [)}>=-])$1m4_changequote([, ])])])
+AT_CHECK_OUTPUT_FILE_NAME([[(]])
+AT_CHECK_OUTPUT_FILE_NAME([[)]])
+AT_CHECK_OUTPUT_FILE_NAME([[@%:@]])
+AT_CHECK_OUTPUT_FILE_NAME([[@@]])
+AT_CHECK_OUTPUT_FILE_NAME([[@{]])
+AT_CHECK_OUTPUT_FILE_NAME([[@}]])
+AT_CHECK_OUTPUT_FILE_NAME([[@<:@]])
+AT_CHECK_OUTPUT_FILE_NAME([[@:>@]])
+
+
+# AT_TEST(SETUP-NAME, GRAMMAR, DOT-BODY)
+# --------------------------------------
+# Check that the DOT graph for GRAMMAR is DOT-BODY.
+m4_pushdef([AT_TEST],
+[AT_SETUP([$1])
+AT_KEYWORDS([[graph]])
+AT_DATA([[input.y]], [$2])
+AT_BISON_CHECK([[-rall --graph input.y]], [0], [[]], [[ignore]])
+AT_CHECK([[grep -v // input.dot]], [0],
+[[
+digraph "input.y"
+{
+ node [fontname = courier, shape = box, colorscheme = paired6]
+ edge [fontname = courier]
+ ]$3[}
+]])
+AT_CLEANUP
+])
+
+
+## ------------------------ ##
+## Graph with no conflicts. ##
+## ------------------------ ##
+
+AT_TEST([Graph with no conflicts],
+[[%%
+exp: a '?' b;
+a: ;
+b: 'b';
+]],
+[[
+ 0 [label="State 0\n\l 0 $accept: . exp $end\l 1 exp: . a '?' b\l 2 a: .\l"]
+ 0 -> 1 [style=dashed label="exp"]
+ 0 -> 2 [style=dashed label="a"]
+ 0 -> "0R2" [style=solid]
+ "0R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
+ 1 [label="State 1\n\l 0 $accept: exp . $end\l"]
+ 1 -> 3 [style=solid label="$end"]
+ 2 [label="State 2\n\l 1 exp: a . '?' b\l"]
+ 2 -> 4 [style=solid label="'?'"]
+ 3 [label="State 3\n\l 0 $accept: exp $end .\l"]
+ 3 -> "3R0" [style=solid]
+ "3R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
+ 4 [label="State 4\n\l 1 exp: a '?' . b\l 3 b: . 'b'\l"]
+ 4 -> 5 [style=solid label="'b'"]
+ 4 -> 6 [style=dashed label="b"]
+ 5 [label="State 5\n\l 3 b: 'b' .\l"]
+ 5 -> "5R3" [style=solid]
+ "5R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
+ 6 [label="State 6\n\l 1 exp: a '?' b .\l"]
+ 6 -> "6R1" [style=solid]
+ "6R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
+]])
+
+## ------------------------ ##
+## Graph with unsolved S/R. ##
+## ------------------------ ##
+
+AT_TEST([Graph with unsolved S/R],
+[[%%
+start:
+ 'a'
+ | empty_a 'a'
+ | 'b'
+ | empty_b 'b'
+ | 'c'
+ | empty_c 'c'
+ ;
+empty_a: %prec 'a';
+empty_b: %prec 'b';
+empty_c: %prec 'c';
+]],
+[[
+ 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: . ['a']\l 8 empty_b: . ['b']\l 9 empty_c: . ['c']\l"]
+ 0 -> 1 [style=solid label="'a'"]
+ 0 -> 2 [style=solid label="'b'"]
+ 0 -> 3 [style=solid label="'c'"]
+ 0 -> 4 [style=dashed label="start"]
+ 0 -> 5 [style=dashed label="empty_a"]
+ 0 -> 6 [style=dashed label="empty_b"]
+ 0 -> 7 [style=dashed label="empty_c"]
+ 0 -> "0R7d" [label="['a']", style=solid]
+ "0R7d" [label="R7", fillcolor=5, shape=diamond, style=filled]
+ 0 -> "0R8d" [label="['b']", style=solid]
+ "0R8d" [label="R8", fillcolor=5, shape=diamond, style=filled]
+ 0 -> "0R9d" [label="['c']", style=solid]
+ "0R9d" [label="R9", fillcolor=5, shape=diamond, style=filled]
+ 1 [label="State 1\n\l 1 start: 'a' .\l"]
+ 1 -> "1R1" [style=solid]
+ "1R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
+ 2 [label="State 2\n\l 3 start: 'b' .\l"]
+ 2 -> "2R3" [style=solid]
+ "2R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
+ 3 [label="State 3\n\l 5 start: 'c' .\l"]
+ 3 -> "3R5" [style=solid]
+ "3R5" [label="R5", fillcolor=3, shape=diamond, style=filled]
+ 4 [label="State 4\n\l 0 $accept: start . $end\l"]
+ 4 -> 8 [style=solid label="$end"]
+ 5 [label="State 5\n\l 2 start: empty_a . 'a'\l"]
+ 5 -> 9 [style=solid label="'a'"]
+ 6 [label="State 6\n\l 4 start: empty_b . 'b'\l"]
+ 6 -> 10 [style=solid label="'b'"]
+ 7 [label="State 7\n\l 6 start: empty_c . 'c'\l"]
+ 7 -> 11 [style=solid label="'c'"]
+ 8 [label="State 8\n\l 0 $accept: start $end .\l"]
+ 8 -> "8R0" [style=solid]
+ "8R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
+ 9 [label="State 9\n\l 2 start: empty_a 'a' .\l"]
+ 9 -> "9R2" [style=solid]
+ "9R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
+ 10 [label="State 10\n\l 4 start: empty_b 'b' .\l"]
+ 10 -> "10R4" [style=solid]
+ "10R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
+ 11 [label="State 11\n\l 6 start: empty_c 'c' .\l"]
+ 11 -> "11R6" [style=solid]
+ "11R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
+]])
+
+## ---------------------- ##
+## Graph with solved S/R. ##
+## ---------------------- ##
+
+AT_TEST([Graph with solved S/R],
+[[%left 'a'
+%right 'b'
+%right 'c'
+%%
+start:
+ 'a'
+ | empty_a 'a'
+ | 'b'
+ | empty_b 'b'
+ | 'c'
+ | empty_c 'c'
+ ;
+empty_a: %prec 'a';
+empty_b: %prec 'b';
+empty_c: %prec 'c';
+]],
+[[
+ 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: . ['a']\l 8 empty_b: . []\l 9 empty_c: . []\l"]
+ 0 -> 1 [style=solid label="'b'"]
+ 0 -> 2 [style=solid label="'c'"]
+ 0 -> 3 [style=dashed label="start"]
+ 0 -> 4 [style=dashed label="empty_a"]
+ 0 -> 5 [style=dashed label="empty_b"]
+ 0 -> 6 [style=dashed label="empty_c"]
+ 0 -> "0R7" [style=solid]
+ "0R7" [label="R7", fillcolor=3, shape=diamond, style=filled]
+ 1 [label="State 1\n\l 3 start: 'b' .\l"]
+ 1 -> "1R3" [style=solid]
+ "1R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
+ 2 [label="State 2\n\l 5 start: 'c' .\l"]
+ 2 -> "2R5" [style=solid]
+ "2R5" [label="R5", fillcolor=3, shape=diamond, style=filled]
+ 3 [label="State 3\n\l 0 $accept: start . $end\l"]
+ 3 -> 7 [style=solid label="$end"]
+ 4 [label="State 4\n\l 2 start: empty_a . 'a'\l"]
+ 4 -> 8 [style=solid label="'a'"]
+ 5 [label="State 5\n\l 4 start: empty_b . 'b'\l"]
+ 5 -> 9 [style=solid label="'b'"]
+ 6 [label="State 6\n\l 6 start: empty_c . 'c'\l"]
+ 6 -> 10 [style=solid label="'c'"]
+ 7 [label="State 7\n\l 0 $accept: start $end .\l"]
+ 7 -> "7R0" [style=solid]
+ "7R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
+ 8 [label="State 8\n\l 2 start: empty_a 'a' .\l"]
+ 8 -> "8R2" [style=solid]
+ "8R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
+ 9 [label="State 9\n\l 4 start: empty_b 'b' .\l"]
+ 9 -> "9R4" [style=solid]
+ "9R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
+ 10 [label="State 10\n\l 6 start: empty_c 'c' .\l"]
+ 10 -> "10R6" [style=solid]
+ "10R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
+]])
+
+## ---------------- ##
+## Graph with R/R. ##
+## ---------------- ##
+
+AT_TEST([Graph with R/R],
+[[%%
+exp: a | b;
+a: ;
+b: ;
+]],
+[[
+ 0 [label="State 0\n\l 0 $accept: . exp $end\l 1 exp: . a\l 2 | . b\l 3 a: . [$end]\l 4 b: . [$end]\l"]
+ 0 -> 1 [style=dashed label="exp"]
+ 0 -> 2 [style=dashed label="a"]
+ 0 -> 3 [style=dashed label="b"]
+ 0 -> "0R3" [style=solid]
+ "0R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
+ 0 -> "0R4d" [label="[$end]", style=solid]
+ "0R4d" [label="R4", fillcolor=5, shape=diamond, style=filled]
+ 1 [label="State 1\n\l 0 $accept: exp . $end\l"]
+ 1 -> 4 [style=solid label="$end"]
+ 2 [label="State 2\n\l 1 exp: a .\l"]
+ 2 -> "2R1" [style=solid]
+ "2R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
+ 3 [label="State 3\n\l 2 exp: b .\l"]
+ 3 -> "3R2" [style=solid]
+ "3R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
+ 4 [label="State 4\n\l 0 $accept: exp $end .\l"]
+ 4 -> "4R0" [style=solid]
+ "4R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
+]])
+
+## ---------------------------------------- ##
+## Graph with reductions with multiple LAT. ##
+## ---------------------------------------- ##
+
+AT_TEST([Graph with reductions with multiple LAT],
+[[%%
+exp: a ';' | a ';' | a '.' | b '?' | b '!' | c '?' | c ';';
+a: ;
+b: ;
+c: ;
+]],
+[[
+ 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: . [';', '.']\l 9 b: . ['?', '!']\l 10 c: . [';', '?']\l"]
+ 0 -> 1 [style=dashed label="exp"]
+ 0 -> 2 [style=dashed label="a"]
+ 0 -> 3 [style=dashed label="b"]
+ 0 -> 4 [style=dashed label="c"]
+ 0 -> "0R8" [style=solid]
+ "0R8" [label="R8", fillcolor=3, shape=diamond, style=filled]
+ 0 -> "0R9" [label="['?', '!']", style=solid]
+ "0R9" [label="R9", fillcolor=3, shape=diamond, style=filled]
+ 0 -> "0R10d" [label="[';', '?']", style=solid]
+ "0R10d" [label="R10", fillcolor=5, shape=diamond, style=filled]
+ 1 [label="State 1\n\l 0 $accept: exp . $end\l"]
+ 1 -> 5 [style=solid label="$end"]
+ 2 [label="State 2\n\l 1 exp: a . ';'\l 2 | a . ';'\l 3 | a . '.'\l"]
+ 2 -> 6 [style=solid label="';'"]
+ 2 -> 7 [style=solid label="'.'"]
+ 3 [label="State 3\n\l 4 exp: b . '?'\l 5 | b . '!'\l"]
+ 3 -> 8 [style=solid label="'?'"]
+ 3 -> 9 [style=solid label="'!'"]
+ 4 [label="State 4\n\l 6 exp: c . '?'\l 7 | c . ';'\l"]
+ 4 -> 10 [style=solid label="';'"]
+ 4 -> 11 [style=solid label="'?'"]
+ 5 [label="State 5\n\l 0 $accept: exp $end .\l"]
+ 5 -> "5R0" [style=solid]
+ "5R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
+ 6 [label="State 6\n\l 1 exp: a ';' . [$end]\l 2 | a ';' . [$end]\l"]
+ 6 -> "6R1" [style=solid]
+ "6R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
+ 6 -> "6R2d" [label="[$end]", style=solid]
+ "6R2d" [label="R2", fillcolor=5, shape=diamond, style=filled]
+ 7 [label="State 7\n\l 3 exp: a '.' .\l"]
+ 7 -> "7R3" [style=solid]
+ "7R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
+ 8 [label="State 8\n\l 4 exp: b '?' .\l"]
+ 8 -> "8R4" [style=solid]
+ "8R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
+ 9 [label="State 9\n\l 5 exp: b '!' .\l"]
+ 9 -> "9R5" [style=solid]
+ "9R5" [label="R5", fillcolor=3, shape=diamond, style=filled]
+ 10 [label="State 10\n\l 7 exp: c ';' .\l"]
+ 10 -> "10R7" [style=solid]
+ "10R7" [label="R7", fillcolor=3, shape=diamond, style=filled]
+ 11 [label="State 11\n\l 6 exp: c '?' .\l"]
+ 11 -> "11R6" [style=solid]
+ "11R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
+]])
+
+## ------------------------------------------------------ ##
+## Graph with a reduction rule both enabled and disabled. ##
+## ------------------------------------------------------ ##
+
+AT_TEST([Graph with a reduction rule both enabled and disabled],
+[[%%
+exp: ifexp | opexp | imm;
+ifexp: "if" exp "then" exp elseexp;
+elseexp: "else" exp | ;
+opexp: exp '+' exp;
+imm: '0';
+]],
+[[
+ 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"]
+ 0 -> 1 [style=solid label="\"if\""]
+ 0 -> 2 [style=solid label="'0'"]
+ 0 -> 3 [style=dashed label="exp"]
+ 0 -> 4 [style=dashed label="ifexp"]
+ 0 -> 5 [style=dashed label="opexp"]
+ 0 -> 6 [style=dashed label="imm"]
+ 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"]
+ 1 -> 1 [style=solid label="\"if\""]
+ 1 -> 2 [style=solid label="'0'"]
+ 1 -> 7 [style=dashed label="exp"]
+ 1 -> 4 [style=dashed label="ifexp"]
+ 1 -> 5 [style=dashed label="opexp"]
+ 1 -> 6 [style=dashed label="imm"]
+ 2 [label="State 2\n\l 8 imm: '0' .\l"]
+ 2 -> "2R8" [style=solid]
+ "2R8" [label="R8", fillcolor=3, shape=diamond, style=filled]
+ 3 [label="State 3\n\l 0 $accept: exp . $end\l 7 opexp: exp . '+' exp\l"]
+ 3 -> 8 [style=solid label="$end"]
+ 3 -> 9 [style=solid label="'+'"]
+ 4 [label="State 4\n\l 1 exp: ifexp .\l"]
+ 4 -> "4R1" [style=solid]
+ "4R1" [label="R1", fillcolor=3, shape=diamond, style=filled]
+ 5 [label="State 5\n\l 2 exp: opexp .\l"]
+ 5 -> "5R2" [style=solid]
+ "5R2" [label="R2", fillcolor=3, shape=diamond, style=filled]
+ 6 [label="State 6\n\l 3 exp: imm .\l"]
+ 6 -> "6R3" [style=solid]
+ "6R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
+ 7 [label="State 7\n\l 4 ifexp: \"if\" exp . \"then\" exp elseexp\l 7 opexp: exp . '+' exp\l"]
+ 7 -> 10 [style=solid label="\"then\""]
+ 7 -> 9 [style=solid label="'+'"]
+ 8 [label="State 8\n\l 0 $accept: exp $end .\l"]
+ 8 -> "8R0" [style=solid]
+ "8R0" [label="Acc", fillcolor=1, shape=diamond, style=filled]
+ 9 [label="State 9\n\l 1 exp: . ifexp\l 2 | . opexp\l 3 | . imm\l 4 ifexp: . \"if\" exp \"then\" exp elseexp\l 7 opexp: . exp '+' exp\l 7 | exp '+' . exp\l 8 imm: . '0'\l"]
+ 9 -> 1 [style=solid label="\"if\""]
+ 9 -> 2 [style=solid label="'0'"]
+ 9 -> 11 [style=dashed label="exp"]
+ 9 -> 4 [style=dashed label="ifexp"]
+ 9 -> 5 [style=dashed label="opexp"]
+ 9 -> 6 [style=dashed label="imm"]
+ 10 [label="State 10\n\l 1 exp: . ifexp\l 2 | . opexp\l 3 | . imm\l 4 ifexp: . \"if\" exp \"then\" exp elseexp\l 4 | \"if\" exp \"then\" . exp elseexp\l 7 opexp: . exp '+' exp\l 8 imm: . '0'\l"]
+ 10 -> 1 [style=solid label="\"if\""]
+ 10 -> 2 [style=solid label="'0'"]
+ 10 -> 12 [style=dashed label="exp"]
+ 10 -> 4 [style=dashed label="ifexp"]
+ 10 -> 5 [style=dashed label="opexp"]
+ 10 -> 6 [style=dashed label="imm"]
+ 11 [label="State 11\n\l 7 opexp: exp . '+' exp\l 7 | exp '+' exp . [$end, \"then\", \"else\", '+']\l"]
+ 11 -> 9 [style=solid label="'+'"]
+ 11 -> "11R7d" [label="['+']", style=solid]
+ "11R7d" [label="R7", fillcolor=5, shape=diamond, style=filled]
+ 11 -> "11R7" [style=solid]
+ "11R7" [label="R7", fillcolor=3, shape=diamond, style=filled]
+ 12 [label="State 12\n\l 4 ifexp: \"if\" exp \"then\" exp . elseexp\l 5 elseexp: . \"else\" exp\l 6 | . [$end, \"then\", \"else\", '+']\l 7 opexp: exp . '+' exp\l"]
+ 12 -> 13 [style=solid label="\"else\""]
+ 12 -> 9 [style=solid label="'+'"]
+ 12 -> 14 [style=dashed label="elseexp"]
+ 12 -> "12R6d" [label="[\"else\", '+']", style=solid]
+ "12R6d" [label="R6", fillcolor=5, shape=diamond, style=filled]
+ 12 -> "12R6" [style=solid]
+ "12R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
+ 13 [label="State 13\n\l 1 exp: . ifexp\l 2 | . opexp\l 3 | . imm\l 4 ifexp: . \"if\" exp \"then\" exp elseexp\l 5 elseexp: \"else\" . exp\l 7 opexp: . exp '+' exp\l 8 imm: . '0'\l"]
+ 13 -> 1 [style=solid label="\"if\""]
+ 13 -> 2 [style=solid label="'0'"]
+ 13 -> 15 [style=dashed label="exp"]
+ 13 -> 4 [style=dashed label="ifexp"]
+ 13 -> 5 [style=dashed label="opexp"]
+ 13 -> 6 [style=dashed label="imm"]
+ 14 [label="State 14\n\l 4 ifexp: \"if\" exp \"then\" exp elseexp .\l"]
+ 14 -> "14R4" [style=solid]
+ "14R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
+ 15 [label="State 15\n\l 5 elseexp: \"else\" exp . [$end, \"then\", \"else\", '+']\l 7 opexp: exp . '+' exp\l"]
+ 15 -> 9 [style=solid label="'+'"]
+ 15 -> "15R5d" [label="['+']", style=solid]
+ "15R5d" [label="R5", fillcolor=5, shape=diamond, style=filled]
+ 15 -> "15R5" [style=solid]
+ "15R5" [label="R5", fillcolor=3, shape=diamond, style=filled]
+]])
+
+m4_popdef([AT_TEST])