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Copy BYacc's nice way to report the grammar.

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* 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
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34
tests/regression.at
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@@ -112,6 +112,8 @@ AT_CLEANUP
AT_SETUP([Rule Line Numbers])
AT_KEYWORDS([report])
AT_DATA([input.y],
[[%%
expr:
@@ -148,12 +150,15 @@ AT_CHECK([bison input.y -o input.c -v])
AT_CHECK([cat input.output], [],
[[Grammar
Number, Line, Rule
0 5 $axiom -> expr $
1 5 @1 -> /* empty */
2 2 expr -> 'a' @1 'b'
3 18 @2 -> /* empty */
4 15 expr -> @2 'c'
0 $axiom: expr $
1 @1: /* empty */
2 expr: 'a' @1 'b'
3 @2: /* empty */
4 expr: @2 'c'
Terminals, with rules where they appear
@@ -349,6 +354,8 @@ AT_CLEANUP
AT_SETUP([Web2c Report])
AT_KEYWORDS([report])
AT_DATA([input.y],
[[%token undef_id_tok const_id_tok
@@ -375,13 +382,12 @@ AT_CHECK([bison -v input.y])
AT_CHECK([sed -n 's/ *$//;/^$/!p' input.output], 0,
[[Grammar
Number, Line, Rule
0 6 $axiom -> CONST_DEC_PART $
1 6 CONST_DEC_PART -> CONST_DEC_LIST
2 10 CONST_DEC_LIST -> CONST_DEC
3 12 CONST_DEC_LIST -> CONST_DEC_LIST CONST_DEC
4 16 @1 -> /* empty */
5 15 CONST_DEC -> @1 undef_id_tok '=' const_id_tok ';'
0 $axiom: CONST_DEC_PART $
1 CONST_DEC_PART: CONST_DEC_LIST
2 CONST_DEC_LIST: CONST_DEC
3 | CONST_DEC_LIST CONST_DEC
4 @1: /* empty */
5 CONST_DEC: @1 undef_id_tok '=' const_id_tok ';'
Terminals, with rules where they appear
$ (0) 0
';' (59) 5
@@ -470,6 +476,8 @@ AT_CLEANUP
AT_SETUP([Web2c Actions])
AT_KEYWORDS([report])
AT_DATA([input.y],
[[%%
statement: struct_stat;