gram: correct token numbering in precedence declarations

[bison.git] / tests / sets.at

diff --git a/tests/sets.at b/tests/sets.at
index cd2727a0b001730104cdb650cb32971017057b58..fadbe6871210bdb0002e56a7838d273592230d17 100644 (file)
--- a/tests/sets.at
+++ b/tests/sets.at
@@ -1,20 +1,60 @@
 # Exercising Bison Grammar Sets.                      -*- Autotest -*-
 # Exercising Bison Grammar Sets.                      -*- Autotest -*-

-# Copyright 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) 2001-2002, 2005, 2007, 2009-2013 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.
 # 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
 # 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_EXTRACT_SETS(INPUT, OUTPUT)
+# ------------------------------
+# Extract the information about the grammar sets from a bison
+# trace output (INPUT), and save it in OUTPUT.
+# And remember, there is no alternation in portable sed.
+m4_define([AT_EXTRACT_SETS],
+[AT_DATA([extract.sed],
+[[#n
+/^NULLABLE$/ {
+   :null
+   p
+   n
+   /^ *$/ !b null
+}
+/^FIRSTS$/ {
+   :firsts
+   p
+   n
+   /^ *$/ !b firsts
+}
+/^FDERIVES$/ {
+   :fderiv
+   p
+   n
+   /^ *$/ !b fderiv
+}
+/^DERIVES$/ {
+   :deriv
+   p
+   n
+   /^ *$/ !b deriv
+}
+]])
+AT_CHECK([sed -f extract.sed $1], 0, [stdout])
+AT_CHECK([mv stdout $2])
+])
+
+

 
 AT_BANNER([[Grammar Sets (Firsts etc.).]])
 
 
 AT_BANNER([[Grammar Sets (Firsts etc.).]])
 


@@ -38,131 +78,32 @@ AT_DATA([[input.y]],
 e: 'e' | /* Nothing */;
 ]])
 
 e: 'e' | /* Nothing */;
 ]])
 

-AT_CHECK([[bison --trace input.y]], [], [], [stderr])
-
-AT_CHECK([[sed 's/[     ]*$//' stderr]], [],
-[[RITEM
-  e  $  (rule 0)
-  'e'  (rule 1)
-  (rule 2)
-
-
-DERIVES
-       $axiom derives
-               1: e $ (rule 0)
-       e derives
-               2: 'e' (rule 1)
-               3: (rule 2)
-
-
-Entering set_nullable
+AT_BISON_CHECK([[--trace=sets input.y]], [], [], [stderr])
+AT_EXTRACT_SETS([stderr], [sets])
+AT_CHECK([[cat sets]], [],
+[[DERIVES
+  $accept derives
+      0  e $end
+  e derives
+      1  'e'
+      2  %empty

 NULLABLE
 NULLABLE

-       $axiom: no
-       e: yes
-
-
-TC: Input BEGIN
-
-   01
-  .--.
- 0| 1|
- 1|  |
-  `--'
-TC: Input END
-
-TC: Output BEGIN
-
-   01
-  .--.
- 0| 1|
- 1|  |
-  `--'
-TC: Output END
-
+  $accept: no
+  e: yes

 FIRSTS
 FIRSTS

-       $axiom firsts
-               4 ($axiom)
-               5 (e)
-       e firsts
-               5 (e)
-
-
+  $accept firsts
+    $accept
+    e
+  e firsts
+    e

 FDERIVES
 FDERIVES

-       $axiom derives
-               0: e $
-               1: 'e'
-               2:
-       e derives
-               1: 'e'
-               2:
-
-
-Processing state 0 (reached by $)
-Closure: input
-
-
-Closure: output
-   0: . e $  (rule 0)
-   3: . 'e'  (rule 1)
-   5: .  (rule 2)
-
-
-Entering new_itemsets, state = 0
-Entering append_states, state = 0
-Entering get_state, state = 0, symbol = 3 ('e')
-Entering new_state, state = 0, symbol = 3 ('e')
-Exiting get_state => 1
-Entering get_state, state = 0, symbol = 5 (e)
-Entering new_state, state = 0, symbol = 5 (e)
-Exiting get_state => 2
-Processing state 1 (reached by 'e')
-Closure: input
-   4: .  (rule 1)
-
-
-Closure: output
-   4: .  (rule 1)
-
-
-Entering new_itemsets, state = 1
-Entering append_states, state = 1
-Processing state 2 (reached by e)
-Closure: input
-   1: . $  (rule 0)
-
-
-Closure: output
-   1: . $  (rule 0)
-
-
-Entering new_itemsets, state = 2
-Entering append_states, state = 2
-Entering get_state, state = 2, symbol = 0 ($)
-Entering new_state, state = 2, symbol = 0 ($)
-Exiting get_state => 3
-Processing state 3 (reached by $)
-Closure: input
-   2: .  (rule 0)
-
-
-Closure: output
-   2: .  (rule 0)
-
-
-Entering new_itemsets, state = 3
-Entering append_states, state = 3
-transpose: input
-  0:
-
-transpose: output
-  0:
-
-Lookaheads: BEGIN
-State 0: 0 lookaheads
-State 1: 0 lookaheads
-State 2: 0 lookaheads
-State 3: 0 lookaheads
-Lookaheads: END
+  $accept derives
+      0  e $end
+      1  'e'
+      2  %empty
+  e derives
+      1  'e'
+      2  %empty

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -172,7 +113,7 @@ AT_CLEANUP
 ## Broken Closure.  ##
 ## ---------------- ##
 
 ## 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:
 # It resulted in bison dumping core on the following grammar (the
 # computation of FIRSTS uses TC).  It managed to produce a pretty
 # exotic closure:


@@ -211,34 +152,151 @@ AT_SETUP([Broken Closure])
 
 AT_DATA([input.y],
 [[%%
 
 AT_DATA([input.y],
 [[%%

-a: b
-b: c
-c: d
-d: e
-e: f
-f: g
-g: h
-h: 'h'
+a: b;
+b: c;
+c: d;
+d: e;
+e: f;
+f: g;
+g: h;
+h: 'h';

 ]])
 
 ]])
 

-AT_CHECK([[bison --trace input.y]], [], [], [stderr])
+AT_BISON_CHECK([[--trace=sets input.y]], [], [], [stderr])

 
 

-AT_CHECK([[sed -n 's/[  ]*$//;/^TC: Output BEGIN/,/^TC: Output END/p' stderr]], [],
-[[TC: Output BEGIN
+AT_CHECK([[sed -n 's/[   ]*$//;/^RTC: Firsts Output BEGIN/,/^RTC: Firsts Output END/p' stderr]], [],
+[[RTC: Firsts Output BEGIN

 
    012345678
   .---------.
 
    012345678
   .---------.

- 0| 11111111|
- 1|  1111111|
- 2|   111111|
- 3|    11111|
- 4|     1111|
- 5|      111|
- 6|       11|
- 7|        1|
- 8|         |
+ 0|111111111|
+ 1| 11111111|
+ 2|  1111111|
+ 3|   111111|
+ 4|    11111|
+ 5|     1111|
+ 6|      111|
+ 7|       11|
+ 8|        1|

   `---------'
   `---------'

-TC: Output END
+RTC: Firsts Output END

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP

+
+
+
+## -------- ##
+## Firsts.  ##
+## -------- ##
+
+AT_SETUP([Firsts])
+
+AT_DATA([input.y],
+[[%nonassoc '<' '>'
+%left '+' '-'
+%right '^' '='
+%%
+exp:
+   exp '<' exp
+ | exp '>' exp
+ | exp '+' exp
+ | exp '-' exp
+ | exp '^' exp
+ | exp '=' exp
+ | "exp"
+ ;
+]])
+
+AT_BISON_CHECK([[--trace=sets input.y]], [], [], [stderr])
+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"
+NULLABLE
+  $accept: no
+  exp: no
+FIRSTS
+  $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"
+]])
+
+AT_CLEANUP
+
+
+
+
+## -------- ##
+## Accept.  ##
+## -------- ##
+
+# 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
+# "end of file"'.
+
+AT_SETUP([Accept])
+
+AT_DATA([input.y],
+[[%token END 0
+%%
+input:
+  'a'
+| '(' input ')'
+| '(' error END
+;
+]])
+
+AT_BISON_CHECK([[-v -o input.c input.y]])
+
+# Get the final state in the parser.
+AT_CHECK([[sed -n 's/.*define YYFINAL *\([0-9][0-9]*\)/final state \1/p' input.c]],
+         0, [stdout])
+mv stdout expout
+
+# Get the final state in the report, from the "accept" action..
+AT_CHECK([sed -n '
+           /^State \(.*\)/{
+             s//final state \1/
+             x
+           }
+           / accept/{
+             x
+             p
+             q
+           }
+        ' input.output],
+        0, [expout])
+
+AT_CLEANUP