projects / bison.git / blame
| Commit | Line | Data |
|---|---|---|
| cb4956ee AD |
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 |