In GLR grammars, $N and @N now yield non-modifiable lvalues.

[bison.git] / ChangeLog

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+2003-10-04  Paul Eggert  <eggert@twinsun.com>
+
+       * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
+       non-modifiable lvalue, instead of a modifiable one.
+       * doc/bison.texinfo (Actions): Document that $$ can
+       be assigned to.  Do not claim that $$ and $N are
+       array element references: user code should not rely on this.
+
+2003-10-01  Paul Eggert  <eggert@twinsun.com>
+
+       * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
+       (grammar_declaration): Use it.
+       * src/scan-gram.l: New token %no-default-prec.
+       * tests/conflicts.at: Revamp tests to use %no-default-prec.
+       * NEWS, doc/bison.texinfo: Document the above.
+
+2003-10-01  Akim Demaille  <akim@epita.fr>
+
+       VCG no longer supports long_straight_phase.
+
+       * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
+       * src/print_graph.c (print_graph): Adjust.
+
+2003-09-30  Frank Heckenbach  <frank@g-n-u.de>
+       and Paul Eggert  <eggert@twinsun.com>
+
+       * doc/bison.texinfo (Decl Summary, Contextual Precedence,
+       Table of Symbols): Document %default-prec.
+       * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
+       (grammar_declaration): Set default_prec on %default-prec.
+       * src/scan-gram.l (%default-prec): New token.
+       * src/reader.h (default_prec): New flag.
+       * src/reader.c: Likewise.
+       (packgram): Handle it.
+       * tests/conflicts.at (%default-prec without %prec,
+       %default-prec with %prec, %default-prec 1): New tests.
+
+2003-09-30  Paul Eggert  <eggert@twinsun.com>
+
+       * tests/testsuite.at: Include local.at, not input.at, fixing
+       a typo in the 2003-08-25 patch.
+
 2003-08-27  Akim Demaille  <akim@epita.fr>
 
        * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify