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In the XML output, list useless and unused symbols and rules with the

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useful ones and add a "usefulness" attribute.  Discussed starting at
<http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>.
* src/gram.c (grammar_rules_partial_print_xml): Remove.
(grammar_rules_print_xml): Print all rules instead of just those
useful in the grammar, and add a "usefulness" attribute.
* src/gram.h (grammar_rules_partial_print_xml): Remove prototype.
* src/print-xml.c (print_rules_useless_in_parser): Remove.
(print_grammar): Print all nonterminals instead of just useful ones,
and add a "usefulness" attribute to nonterminals and terminals.
(print_xml): Don't print a separate "reductions" or
"rules-useless-in-parser" element.
* src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar.
(reduce_xml): Remove.
(reduce_token_unused_in_grammar): New.
(reduce_nonterminal_useless_in_grammar): New.
* src/reduce.h (reduce_xml): Remove prototype.
(reduce_token_unused_in_grammar): Add prototype.
(reduce_nonterminal_useless_in_grammar): Add prototype.
* data/xslt/xml2text.xsl: Update for XML changes.
* data/xslt/xml2xhtml.xsl: Update for XML changes.
* tests/reduce.at (Useless Terminals): Update output.
(Useless Rules): Update output.
(Reduced Automaton): Update output.

Say "Terminals unused in grammar" instead of "Unused terminals".
* NEWS (2.3a+): Update.
* doc/bison.texinfo (Understanding): Update example output.
* src/reduce.c (reduce_output): Implement.
* data/xslt/xml2text.xsl: Implement.
* data/xslt/xml2xhtml.xsl: Implement.
This commit is contained in:
Joel E. Denny
2007-11-24 19:41:25 +00:00
parent 1bb2bd75f0
commit d80fb37a26
11 changed files with 267 additions and 269 deletions
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6
tests/reduce.at
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@@ -45,7 +45,7 @@ exp: useful;
AT_CHECK([[bison input.y]])
AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
[[Terminals which are not used
[[Terminals unused in grammar
useless1
useless2
useless3
@@ -174,7 +174,7 @@ AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
useless7
useless8
useless9
Terminals which are not used
Terminals unused in grammar
'1'
'2'
'3'
@@ -249,7 +249,7 @@ AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' not-reduced.output]], 0,
[[Nonterminals useless in grammar
not_reachable
non_productive
Terminals which are not used
Terminals unused in grammar
useless_token
Rules useless in grammar
2 exp: non_productive