+2011-01-24 Joel E. Denny <joeldenny@joeldenny.org>
+
+ * data/yacc.c: Fix last apostrophe warning from xgettext.
+
+2011-01-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ Simplify handling of '.' and '-' after unbracketed named references.
+ * doc/bison.texinfo (Mid-Rule Actions): Mention that periods and
+ dashes make symbol names less convenient for named references.
+ * src/scan-code.l:
+ (handle_action_dollar): New arg textlen. All callers changed.
+ (handle_action_at): Likewise. Also, args are pointers to const.
+ (ref_tail_fields): Remove; no longer used.
+ (letter): Now includes '-' and '.', since this is for Bison
+ identifiers.
+ (id): Now the simpler traditional defn, since letters now include
+ '-' and '.'.
+ (c_letter, c_id): New defns.
+ (ref): Use c_id for unbracketed IDs.
+ (<SC_RULE_ACTION>): Simplify, now that the distinction between
+ Bison and unbracketed IDs are now in the regular expressions.
+ (VARIANT_BAD_BRACKETING): Remove.
+ (VARIANT_NOT_VISIBLE_FROM_MIDRULE): Renumber.
+ (find_prefix_end): Remove, replacing with ....
+ (identifier_matches): New function.
+ (variant_add): Use it. Omit EXPLICIT_BRACKETING arg; no longer
+ needed. CP arg is pointer to constant. All callers changed.
+ (show_sub_messages): Remove args CP, EXPLICIT_BRACKETING, DOLLAR_OR_AT.
+ New arg TEXT. All callers changed. Do not worry about showing
+ trailing context.
+ (parse_ref): Args CP, RULE, TEXT are now pointers to const. New
+ arg TEXTLEN. Remove arg DOLLAR_OR_AT. All callers changed.
+ Simplify code now that the regular expressions capture the
+ restrictions.
+ * src/scan-gram.l (letter, id): Adjust to match scan-code.l.
+ * src/symlist.c (symbol_list_null): Arg is now pointer to const.
+ * src/symlist.h: Likewise.
+ * tests/named-refs.at (Misleading references): These are now caught
+ by the C compiler, not by Bison; that's good enough. Adjust test
+ to reflect this.
+ (Many kinds of errors, Unresolved references): Adjust expected
+ diagnostics to match new behavior. The same errors are caught,
+ though the diagnostics are not quite as fancy.
+ ($ or @ followed by . or -): Likewise. Also, Make the grammar
+ unambiguous, so that diagnostics are not complicated by ambiguity
+ warnings.
+
+ Fix minor problems encountered by a fresh bootstrap.
+ * data/glr.c, data/yacc.c: Do not use apostrophes in '#' comments,
+ as they confuse xgettext, which tries to parse them as C character
+ constants in a preprocessor directive.
+ * data/yacc.c (yy_lac): Don't use printf %d format on *yyesp, as
+ that expression might not promote to int on some platforms.
+ * src/parse-gram.c, src/parse-gram.h: Regenerate.
+
+2011-01-09 Joel E. Denny <joeldenny@joeldenny.org>
+
+ Improve error messages for `$' or `@' followed by `.' or `-'.
+ Previously, for this special case of an invalid reference, the
+ usual "symbol not found in production:" was printed. However,
+ because the symbol name was parsed as the empty string, that
+ message was followed immediately by a newline instead of a symbol
+ name. In reality, this is a syntax error, so the reference is
+ invalid regardless of the symbols actually appearing in the
+ production. Discussed at
+ <http://lists.gnu.org/archive/html/bison-patches/2011-01/msg00012.html>.
+ * src/scan-code.l (parse_ref): Report the above case as a syntax
+ error. Other than that, continue to handle this case like any
+ other invalid reference that Bison manages to parse because
+ "possibly meant" messages can still be helpful to the user.
+ * tests/named-refs.at ($ or @ followed by . or -): New test group.
+
+2011-01-08 Joel E. Denny <joeldenny@joeldenny.org>
+
+ doc: don't use @acronym.
+ Lately, many GNU packages are dropping it. See
+ <http://lists.gnu.org/archive/html/bison-patches/2011-01/msg00003.html>.
+ * doc/bison.texinfo: Remove all uses.
+
+2011-01-05 Alex Rozenman <rozenman@gmail.com>
+
+ Do not allow identifiers that start with a negative number.
+ Reported by Paul Hilfinger as a side effect of named references
+ support at
+ <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00000.html>.
+ Suggested by Paul Eggert.
+ * src/scan-code.l ({letter}, {id}): Adjust lexical definitions.
+ * src/scan-gram.l ({letter}, {id}): Likewise.
+
2011-01-03 Joel E. Denny <joeldenny@joeldenny.org>
* ChangeLog (2011-01-02): improve description.
projects / bison.git / blobdiff