doc: give credit to more of Bison's developers.

[bison.git] / ChangeLog

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+2011-02-06  Joel E. Denny  <joeldenny@joeldenny.org>
+
+       doc: give credit to more of Bison's developers.
+       * doc/bison.texinfo (Introduction): Don't imply that only Robert
+       Corbett, Richard Stallman, and Wilfred Hansen have contributed to
+       Bison.  However, I don't have time to write a full history, so
+       just point readers to THANKS and ChangeLog.
+
+2011-02-06  Joel E. Denny  <joeldenny@joeldenny.org>
+
+       doc: document experimental features better.
+       * doc/bison.texinfo (Introduction): Say that IELR(1) and canonical
+       LR(1) are experimental.  Mention Java.  Normally experimental
+       features probably shouldn't be mentioned in the introduction.
+       However, if Bison's limitations to LALR(1), C, and C++ are so
+       important that they should be mentioned here, then it's important
+       to point out that Bison is beginning to escape those limitations.
+       Moreover, these particular experimental features have very little
+       chance of being removed.
+       * src/getargs.c (usage): Say that IELR(1) and canonical LR(1) are
+       experimental.
+
+2011-01-29  Joel E. Denny  <joeldenny@joeldenny.org>
+
+       Do not allow identifiers that start with a dash.
+       This cleans up our previous fixes for a bug whereby Bison
+       discarded `.field' in `$-1.field'.  The previous fixes were less
+       restrictive about where a dash could appear in an identifier, but
+       the restrictions were hard to explain.  That bug was reported and
+       this final fix was originally suggested by Paul Hilfinger.  This
+       also fixes a remaining bug reported by Paul Eggert whereby Bison
+       parses `%token ID -123' as `%token ID - 123' and handles `-' as an
+       identifier.  Now, `-' cannot be an identifier.  Discussed in
+       threads beginning at
+       <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00000.html>,
+       <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00004.html>.
+       * NEWS (2.5): Update entry describing the dash extension to
+       grammar symbol names.  Also, move that entry before the named
+       references entry because the latter mentions the former.
+       * doc/bison.texinfo (Symbol): Update documentation for symbol
+       names.  As suggested by Paul Eggert, mention the effect of periods
+       and dashes on named references.
+       (Decl Summary): Update documentation for unquoted %define values,
+       which, as a side effect, can no longer start with dashes either.
+       * src/scan-code.l (id): Implement.
+       * src/scan-gram.l (id): Implement.
+       * tests/actions.at (Exotic Dollars): Extend test group to exercise
+       bug reported by Paul Hilfinger.
+       * tests/input.at (Symbols): Update test group, and extend to
+       exercise bug reported by Paul Eggert.
+       * tests/named-refs.at (Stray symbols in brackets): Update test
+       group.
+       ($ or @ followed by . or -): Likewise.
+       * tests/regression.at (Invalid inputs): Likewise.
+
 2011-01-24  Joel E. Denny  <joeldenny@joeldenny.org>
 
        * data/yacc.c: Fix last apostrophe warning from xgettext.