# Exercising Bison Grammar Sets. -*- Autotest -*-
-# Copyright (C) 2001-2002, 2005, 2007, 2009-2012 Free Software
+# Copyright (C) 2001-2002, 2005, 2007, 2009-2015 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
:null
p
n
- /^[ ]*$/ !b null
+ /^ *$/ !b null
}
/^FIRSTS$/ {
:firsts
p
n
- /^[ ]*$/ !b firsts
+ /^ *$/ !b firsts
}
/^FDERIVES$/ {
:fderiv
p
n
- /^[ ]*$/ !b fderiv
+ /^ *$/ !b fderiv
}
/^DERIVES$/ {
:deriv
p
n
- /^[ ]*$/ !b deriv
+ /^ *$/ !b deriv
}
]])
AT_CHECK([sed -f extract.sed $1], 0, [stdout])
AT_EXTRACT_SETS([stderr], [sets])
AT_CHECK([[cat sets]], [],
[[DERIVES
- $accept derives
- 0 e $end
- e derives
- 1 'e'
- 2 /* empty */
+ $accept derives
+ 0 e $end
+ e derives
+ 1 'e'
+ 2 %empty
NULLABLE
- $accept: no
- e: yes
+ $accept: no
+ e: yes
FIRSTS
- $accept firsts
- $accept
- e
- e firsts
- e
+ $accept firsts
+ $accept
+ e
+ e firsts
+ e
FDERIVES
- $accept derives
- 0 e $end
- 1 'e'
- 2 /* empty */
- e derives
- 1 'e'
- 2 /* empty */
+ $accept derives
+ 0 e $end
+ 1 'e'
+ 2 %empty
+ e derives
+ 1 'e'
+ 2 %empty
]])
AT_CLEANUP
## Broken Closure. ##
## ---------------- ##
-# TC was once broken during a massive `simplification' of the code.
+# TC was once broken during a massive 'simplification' of the code.
# It resulted in bison dumping core on the following grammar (the
# computation of FIRSTS uses TC). It managed to produce a pretty
# exotic closure:
AT_BISON_CHECK([[--trace=sets input.y]], [], [], [stderr])
-AT_CHECK([[sed -n 's/[ ]*$//;/^RTC: Firsts Output BEGIN/,/^RTC: Firsts Output END/p' stderr]], [],
+AT_CHECK([[sed -n 's/[ ]*$//;/^RTC: Firsts Output BEGIN/,/^RTC: Firsts Output END/p' stderr]], [],
[[RTC: Firsts Output BEGIN
012345678
AT_EXTRACT_SETS([stderr], [sets])
AT_CHECK([[cat sets]], [],
[[DERIVES
- $accept derives
- 0 exp $end
- exp derives
- 1 exp '<' exp
- 2 exp '>' exp
- 3 exp '+' exp
- 4 exp '-' exp
- 5 exp '^' exp
- 6 exp '=' exp
- 7 "exp"
+ $accept derives
+ 0 exp $end
+ exp derives
+ 1 exp '<' exp
+ 2 exp '>' exp
+ 3 exp '+' exp
+ 4 exp '-' exp
+ 5 exp '^' exp
+ 6 exp '=' exp
+ 7 "exp"
NULLABLE
- $accept: no
- exp: no
+ $accept: no
+ exp: no
FIRSTS
- $accept firsts
- $accept
- exp
- exp firsts
- exp
+ $accept firsts
+ $accept
+ exp
+ exp firsts
+ exp
FDERIVES
- $accept derives
- 0 exp $end
- 1 exp '<' exp
- 2 exp '>' exp
- 3 exp '+' exp
- 4 exp '-' exp
- 5 exp '^' exp
- 6 exp '=' exp
- 7 "exp"
- exp derives
- 1 exp '<' exp
- 2 exp '>' exp
- 3 exp '+' exp
- 4 exp '-' exp
- 5 exp '^' exp
- 6 exp '=' exp
- 7 "exp"
+ $accept derives
+ 0 exp $end
+ 1 exp '<' exp
+ 2 exp '>' exp
+ 3 exp '+' exp
+ 4 exp '-' exp
+ 5 exp '^' exp
+ 6 exp '=' exp
+ 7 "exp"
+ exp derives
+ 1 exp '<' exp
+ 2 exp '>' exp
+ 3 exp '+' exp
+ 4 exp '-' exp
+ 5 exp '^' exp
+ 6 exp '=' exp
+ 7 "exp"
]])
AT_CLEANUP
# In some weird cases Bison could compute an incorrect final state
# number. This happens only if the $end token is used in the user
# grammar, which is a very suspicious accidental feature introduced as
-# a side effect of allowing the user to name $end using `%token END 0
+# a side effect of allowing the user to name $end using '%token END 0
# "end of file"'.
AT_SETUP([Accept])
# Get the final state in the report, from the "accept" action..
AT_CHECK([sed -n '
- /^state \(.*\)/{
+ /^State \(.*\)/{
s//final state \1/
x
}