Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-19 01:03:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

Copy BYacc's nice way to report the grammar.

Browse Source 
* src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
New.
Don't print the rules' location, it is confusing and useless.
(rule_print): Use grammar_rhs_print.
* src/print.c (print_grammar): Use grammar_rules_print.
This commit is contained in:
Akim Demaille
2002-06-15 18:23:12 +00:00
parent ee000ba4fc
commit 6b98e4b563
16 changed files with 328 additions and 151 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
tests/reduce.at
View File

@@ -89,7 +89,16 @@ exp: useful;
]])
AT_CHECK([[bison input.y]], 0, [],
[[input.y contains 9 useless nonterminals
[[input.y: warning: 9 useless nonterminals
input.y:4.8-15: warning: useless nonterminal: useless1
input.y:5.8-15: warning: useless nonterminal: useless2
input.y:6.8-15: warning: useless nonterminal: useless3
input.y:7.8-15: warning: useless nonterminal: useless4
input.y:8.8-15: warning: useless nonterminal: useless5
input.y:9.8-15: warning: useless nonterminal: useless6
input.y:10.8-15: warning: useless nonterminal: useless7
input.y:11.8-15: warning: useless nonterminal: useless8
input.y:12.8-15: warning: useless nonterminal: useless9
]])
AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
@@ -133,7 +142,25 @@ useless9: '9';
]])
AT_CHECK([[bison input.y]], 0, [],
[[input.y contains 9 useless nonterminals and 9 useless rules
[[input.y: warning: 9 useless nonterminals and 9 useless rules
input.y:6.1-8: warning: useless nonterminal: useless1
input.y:7.1-8: warning: useless nonterminal: useless2
input.y:8.1-8: warning: useless nonterminal: useless3
input.y:9.1-8: warning: useless nonterminal: useless4
input.y:10.1-8: warning: useless nonterminal: useless5
input.y:11.1-8: warning: useless nonterminal: useless6
input.y:12.1-8: warning: useless nonterminal: useless7
input.y:13.1-8: warning: useless nonterminal: useless8
input.y:14.1-8: warning: useless nonterminal: useless9
input.y:6.9-13: warning: useless rule: useless1: '1'
input.y:7.9-13: warning: useless rule: useless2: '2'
input.y:8.9-13: warning: useless rule: useless3: '3'
input.y:9.9-13: warning: useless rule: useless4: '4'
input.y:10.9-13: warning: useless rule: useless5: '5'
input.y:11.9-13: warning: useless rule: useless6: '6'
input.y:12.9-13: warning: useless rule: useless7: '7'
input.y:13.9-13: warning: useless rule: useless8: '8'
input.y:14.9-13: warning: useless rule: useless9: '9'
]])
AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
@@ -208,7 +235,12 @@ non_productive: non_productive useless_token
]])
AT_CHECK([[bison not-reduced.y]], 0, [],
[[not-reduced.y contains 2 useless nonterminals and 3 useless rules
[[not-reduced.y: warning: 2 useless nonterminals and 3 useless rules
not-reduced.y:14.1-13: warning: useless nonterminal: not_reachable
not-reduced.y:11.6-19: warning: useless nonterminal: non_productive
not-reduced.y:11.4-57: warning: useless rule: exp: non_productive
not-reduced.y:14.14-56: warning: useless rule: not_reachable: useful
not-reduced.y:17.15-18.63: warning: useless rule: non_productive: non_productive useless_token
]])
AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' not-reduced.output]], 0,
@@ -275,7 +307,12 @@ indirection: underivable;
]])
AT_CHECK([[bison input.y]], 0, [],
[[input.y contains 2 useless nonterminals and 3 useless rules
[[input.y: warning: 2 useless nonterminals and 3 useless rules
input.y:5.15-25: warning: useless nonterminal: underivable
input.y:6.14-24: warning: useless nonterminal: indirection
input.y:5.13-25: warning: useless rule: exp: underivable
input.y:6.12-24: warning: useless rule: underivable: indirection
input.y:7.12-24: warning: useless rule: indirection: underivable
]])
AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,