tests/reduce.at

   1 # Exercising Bison Grammar Reduction.                      -*- Autotest -*-
   2 # Copyright 2001 Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2, or (at your option)
   7 # any later version.
   8
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  17 # 02111-1307, USA.
  18
  19 AT_BANNER([[Grammar Reduction.]])
  20
  21
  22 ## ------------------- ##
  23 ## Useless Terminals.  ##
  24 ## ------------------- ##
  25
  26 AT_SETUP([Useless Terminals])
  27
  28 AT_DATA([[input.y]],
  29 [[%verbose
  30 %output="input.c"
  31
  32 %token useless1
  33 %token useless2
  34 %token useless3
  35 %token useless4
  36 %token useless5
  37 %token useless6
  38 %token useless7
  39 %token useless8
  40 %token useless9
  41
  42 %token useful
  43 %%
  44 exp: useful;
  45 ]])
  46
  47 AT_CHECK([[bison input.y]])
  48
  49 AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
  50 [[Terminals which are not used:
  51    useless1
  52    useless2
  53    useless3
  54    useless4
  55    useless5
  56    useless6
  57    useless7
  58    useless8
  59    useless9
  60 ]])
  61
  62 AT_CLEANUP
  63
  64
  65
  66 ## ---------------------- ##
  67 ## Useless Nonterminals.  ##
  68 ## ---------------------- ##
  69
  70 AT_SETUP([Useless Nonterminals])
  71
  72 AT_DATA([[input.y]],
  73 [[%verbose
  74 %output="input.c"
  75
  76 %nterm useless1
  77 %nterm useless2
  78 %nterm useless3
  79 %nterm useless4
  80 %nterm useless5
  81 %nterm useless6
  82 %nterm useless7
  83 %nterm useless8
  84 %nterm useless9
  85
  86 %token useful
  87 %%
  88 exp: useful;
  89 ]])
  90
  91 AT_CHECK([[bison input.y]])
  92
  93 AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
  94 [[Terminals which are not used:
  95    useless1
  96    useless2
  97    useless3
  98    useless4
  99    useless5
 100    useless6
 101    useless7
 102    useless8
 103    useless9
 104 ]])
 105
 106 AT_CLEANUP