# Checking the output filenames. -*- Autotest -*-
-# Copyright (C) 2000-2002, 2005-2012 Free Software Foundation, Inc.
+# Copyright (C) 2000-2002, 2005-2015 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
AT_BANNER([[Output file names.]])
-
-# AT_CHECK_OUTPUT(INPUT-FILE, [DIRECTIVES], [FLAGS], EXPECTED-FILES, [SHELLIO],
+# AT_CHECK_FILES(EXPECTED-FILES, [IGNORED-FILES])
+# -----------------------------------------------
+# Check that the current directory contains FILE... (sorted).
+m4_define([AT_CHECK_FILES],
+[AT_CHECK([[find . -type f |
+ $PERL -ne '
+ s,\./,,; chomp;
+ push @file, $_ unless m{^($2|testsuite.log)$};
+ END { print join (" ", sort @file), "\n" }']],
+ [], [$1
+])])
+
+# AT_CHECK_OUTPUT(INPUT-FILE, [DIRECTIVES], [FLAGS], EXPECTED-FILES, [STATUS],
# [ADDITIONAL-TESTS], [PRE-TESTS])
# -----------------------------------------------------------------------------
m4_define([AT_CHECK_OUTPUT],
-[AT_SETUP([[Output files: $2 $3 $5]])
-$7
-for file in $1 $4; do
- case "$file" in
- */*) mkdir -p `echo "$file" | sed 's,/.*,,'`;;
+[AT_SETUP([[Output files: ]$2 $3])[
+]$7[
+for file in ]$1 $4[; do
+ case $file in
+ */*) mkdir -p `echo "$file" | sed 's,/[^/]*,,'`;;
esac
done
-AT_DATA([$1],
-[[$2
+]AT_DATA([$1],
+[$2[
%%
-foo: {};
+foo: %empty {};
+]])[
+
+]AT_BISON_CHECK([$3 $1], [$5], [], [ignore])[
+# Ignore the files non-generated files
+]AT_CHECK_FILES([$4], [$1])[
+]$6[
+]AT_CLEANUP[
]])
-AT_BISON_CHECK([$3 $1 $5], 0)
-AT_CHECK([ls $4], [], [ignore])
-$6
-AT_CLEANUP
-])
-
AT_CHECK_OUTPUT([foo.y], [], [-dv],
- [foo.output foo.tab.c foo.tab.h])
+ [foo.output foo.tab.c foo.tab.h])
# Some versions of Valgrind (at least valgrind-3.6.0.SVN-Debian) report
# "fgrep: write error: Bad file descriptor" when stdout is closed, so we
# skip this test group during maintainer-check-valgrind.
-AT_CHECK_OUTPUT([foo.y], [], [-dv],
- [foo.output foo.tab.c foo.tab.h],
- [>&-], [],
- [AT_CHECK([[case "$PREBISON" in *valgrind*) exit 77;; esac]])])
+AT_CHECK_OUTPUT([foo.y], [], [-dv >&-],
+ [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])
+ [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])
+ [foo.output foo.tab.c foo.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])
+ [bar.output bar.tab.c bar.tab.h])
AT_CHECK_OUTPUT([foo.y], [], [-dv -g -o foo.c],
- [foo.c foo.dot foo.h foo.output])
+ [foo.c foo.dot foo.h foo.output])
AT_CHECK_OUTPUT([foo.y], [%defines %verbose], [],
- [foo.output foo.tab.c foo.tab.h])
+ [foo.output foo.tab.c foo.tab.h])
AT_CHECK_OUTPUT([foo.y], [%defines %verbose %yacc],[],
- [y.output y.tab.c y.tab.h])
+ [y.output y.tab.c y.tab.h])
AT_CHECK_OUTPUT([foo.yy], [%defines %verbose %yacc],[],
- [y.output y.tab.c y.tab.h])
+ [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])
+ [bar.output bar.tab.c bar.tab.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],
- [],
- [bar.output bar.c bar.h])
+ [%file-prefix "baz" %output "bar.c" %defines %verbose %yacc],
+ [],
+ [bar.c bar.h bar.output])
# Check priorities of extension control.
AT_CHECK_OUTPUT([foo.yy], [%defines %verbose], [],
- [foo.output foo.tab.cc foo.tab.hh])
+ [foo.output foo.tab.cc foo.tab.hh])
AT_CHECK_OUTPUT([foo.yy], [%defines %verbose ], [-o foo.c],
- [foo.c foo.h foo.output])
+ [foo.c foo.h foo.output])
AT_CHECK_OUTPUT([foo.yy], [],
- [--defines=foo.hpp -o foo.c++],
- [foo.c++ foo.hpp])
+ [--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])
+ [-o foo.c++],
+ [foo.c++ foo.hpp])
AT_CHECK_OUTPUT([foo.yy], [],
- [-o foo.c++ --graph=foo.gph],
- [foo.c++ foo.gph])
+ [-o foo.c++ --graph=foo.gph],
+ [foo.c++ foo.gph])
+
+# Do not generate code when there are early errors (even warnings as
+# errors).
+AT_CHECK_OUTPUT([foo.y], [%type <foo> useless],
+ [--defines --graph --xml --report=all -Wall -Werror],
+ [foo.dot foo.output foo.xml],
+ [1])
+
+# Do not generate code when there are late errors (even warnings as
+# errors).
+AT_CHECK_OUTPUT([foo.y], [%define useless],
+ [--defines --graph --xml --report=all -Wall -Werror],
+ [foo.dot foo.output foo.xml],
+ [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.tab.cc foo.tab.hh foo.output location.hh stack.hh position.hh])
+ [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.tab.cc foo.tab.hh foo.output location.hh stack.hh position.hh],
- [], [AT_CHECK_NO_SUBDIR_PART([foo.tab])])
+ [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],
- [-o subdir/foo.cc],
- [subdir/foo.cc subdir/foo.hh subdir/foo.output subdir/location.hh subdir/stack.hh subdir/position.hh],
- [], [AT_CHECK_NO_SUBDIR_PART([subdir/foo])])
+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.tab.cc output_dir/foo.tab.hh output_dir/foo.output output_dir/location.hh output_dir/stack.hh output_dir/position.hh])
+ [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,
AT_CHECK_CONFLICTING_OUTPUT([foo.y],
[], [--graph="foo.tab.c"],
-[foo.y: warning: conflicting outputs to file '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'
-])
+[[foo.y: warning: conflicting outputs to file 'foo.output' [-Wother]
+]])
AT_CHECK_CONFLICTING_OUTPUT([foo.y],
-[%skeleton "lalr1.cc" %defines], [--graph="location.hh"],
-[foo.y: warning: conflicting outputs to file 'location.hh'
-])
+[%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: refusing to overwrite the input file 'foo.y'
-], 1)
+[[foo.y: error: refusing to overwrite the input file 'foo.y'
+]], 1)
# AT_CHECK_OUTPUT_FILE_NAME(FILE-NAME-PREFIX, [ADDITIONAL-TESTS])
%%
start: {};
]])
-AT_BISON_CHECK([-o "AS_ESCAPE([$1.c])" --defines="AS_ESCAPE([$1.h])" cxx.y])
-AT_CHECK([ls "AS_ESCAPE([$1.c])" "AS_ESCAPE([$1.h])"], [], [ignore])
-AT_COMPILE_CXX([cxx.o], [-c "AS_ESCAPE([$1.c])"])
+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_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: . %empty\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: . %empty ['a']\l 8 empty_b: . %empty ['b']\l 9 empty_c: . %empty ['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: . %empty ['a']\l 8 empty_b: . %empty []\l 9 empty_c: . %empty []\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 $end\l 1 exp: . a\l 2 | . b\l 3 a: . %empty [$end]\l 4 b: . %empty [$end]\l"]
+ 0 -> 1 [style=dashed label="exp"]
+ 0 -> 2 [style=dashed label="a"]
+ 0 -> 3 [style=dashed label="b"]
+ 0 -> "0R3" [style=solid]
+ "0R3" [label="R3", fillcolor=3, shape=diamond, style=filled]
+ 0 -> "0R4d" [label="[$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: . %empty [';', '.']\l 9 b: . %empty ['?', '!']\l 10 c: . %empty [';', '?']\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 | . %empty [$end, \"then\", \"else\", '+']\l 7 opexp: exp . '+' exp\l"]
+ 12 -> 13 [style=solid label="\"else\""]
+ 12 -> 9 [style=solid label="'+'"]
+ 12 -> 14 [style=dashed label="elseexp"]
+ 12 -> "12R6d" [label="[\"else\", '+']", style=solid]
+ "12R6d" [label="R6", fillcolor=5, shape=diamond, style=filled]
+ 12 -> "12R6" [style=solid]
+ "12R6" [label="R6", fillcolor=3, shape=diamond, style=filled]
+ 13 [label="State 13\n\l 1 exp: . ifexp\l 2 | . opexp\l 3 | . imm\l 4 ifexp: . \"if\" exp \"then\" exp elseexp\l 5 elseexp: \"else\" . exp\l 7 opexp: . exp '+' exp\l 8 imm: . '0'\l"]
+ 13 -> 1 [style=solid label="\"if\""]
+ 13 -> 2 [style=solid label="'0'"]
+ 13 -> 15 [style=dashed label="exp"]
+ 13 -> 4 [style=dashed label="ifexp"]
+ 13 -> 5 [style=dashed label="opexp"]
+ 13 -> 6 [style=dashed label="imm"]
+ 14 [label="State 14\n\l 4 ifexp: \"if\" exp \"then\" exp elseexp .\l"]
+ 14 -> "14R4" [style=solid]
+ "14R4" [label="R4", fillcolor=3, shape=diamond, style=filled]
+ 15 [label="State 15\n\l 5 elseexp: \"else\" exp . [$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])