X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/3cf084ecae1b304b92d6d43cf530aded12162a58..4862bdfd613f96f4ab67326e6d64db3e654aec11:/ChangeLog diff --git a/ChangeLog b/ChangeLog index 84cedb4d..f0f0866b 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,8 +1,269 @@ +2006-06-07 Akim Demaille + + * src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash. + +2006-06-06 Akim Demaille + + Extract the parsing of user actions from the grammar scanner. + As a consequence, the relation between the grammar scanner and + parser is much simpler. We can also split "composite tokens" back + into simple tokens. + * src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New. + * src/scan-gram.l (add_column_width, adjust_location): Move to and + rename as... + * src/location.h, src/location.c (add_column_width) + (location_compute): these. + Fix the column count: the initial column is 0. + (location_print): Be robust to ending column being 0. + * src/location.h (boundary_set): New. + * src/main.c: Adjust to scanner_free being renamed as + gram_scanner_free. + * src/output.c: Include scan-code.h. + * src/parse-gram.y: Include scan-gram.h and scan-code.h. + Use boundary_set. + (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION) + (PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part, + which is now, again, a separate token. + Adjust all dependencies. + Whereever actions with $ and @ are used, use translate_code. + (action): Remove this nonterminal which is now useless. + * src/reader.c: Include assert.h, scan-gram.h and scan-code.h. + (grammar_current_rule_action_append): Use translate_code. + (packgram): Bound check ruleno, itemno, and rule_length. + * src/reader.h (gram_in, gram__flex_debug, scanner_cursor) + (last_string, last_braced_code_loc, max_left_semantic_context) + (scanner_initialize, scanner_free, scanner_last_string_free) + (gram_out, gram_lineno, YY_DECL_): Move to... + * src/scan-gram.h: this new file. + (YY_DECL): Rename as... + (GRAM_DECL): this. + * src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New. + * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out): + (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in): + (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy): + Move these declarations, and... + (obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE): + these to... + * src/flex-scanner.h: this new file. + * src/scan-gram.l (rule_length, rule_length_overflow) + (increment_rule_length): Remove. + (last_braced_code_loc): Rename as... + (gram_last_braced_code_loc): this. + Adjust to the changes of the parser. + Move all the handling of $ and @ into... + * src/scan-code.l: here. + * src/scan-gram.l (handle_dollar, handle_at): Remove. + (handle_action_dollar, handle_action_at): Move to... + * src/scan-code.l: here. + * src/Makefile.am (bison_SOURCES): Add flex-scanner.h, + scan-code.h, scan-code-c.c, scan-gram.h. + (EXTRA_bison_SOURCES): Add scan-code.l. + (BUILT_SOURCES): Add scan-code.c. + (yacc): Be robust to white spaces. + + * tests/conflicts.at, tests/input.at, tests/reduce.at, + * tests/regression.at: Adjust the column numbers. + * tests/regression.at: Adjust the error message. + +2006-06-06 Joel E. Denny + + * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output. + Use Akim's wording from + . + +2006-06-06 Joel E. Denny + + Between Bison releases, manually append `+' to the previous Bison + release number, and use that as a signal to automatically print the + ChangeLog's CVS Id keyword from --version. Discussed starting at + . + * ChangeLog: Add Id header. + * configure.ac (AC_INIT): Append `+' to `2.3'. + * src/.cvsignore: Add revision.c. + * src/Makefile.am (bison_SOURCES): Add revision.c and revision.h. + (BUILT_SOURCES): Add revision.c. + (revision.c): New target rule. This file defines a new global variable + named revision. It initializes it with either the Id from ChangeLog + or, if VERSION doesn't contain `+', with the empty string. + * src/getargs.c (version): Print the value of revision. + * src/revision.h: Extern revision. + +2006-06-05 Paul Eggert + + * NEWS: Version 2.3. + * configure.ac (AC_INIT): Likewise. + +2006-05-30 Paul Eggert + + * data/glr.c (YYRECOVERING): Define to be a function-like macro + with no arguments, not as an object-like macro. This is for + compatibility with data/yacc.c. Problem reported by John P. Hartmann in + . + * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols): + Document this. + +2006-05-30 Joel E. Denny + + * src/getargs.c (usage): Back out yesterday's modification of the + --help output so that we don't have to wait for translation before + releasing 2.3. + +2006-05-29 Paul Eggert + + * doc/bison.texinfo (Introduction): Don't say "GLR grammar". + Problem reported by Akim Demaille. + +2006-05-29 Joel E. Denny + + * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output. + +2006-05-26 Paul Eggert + + * data/yacc.c (yy_reduce_print): Omit trailing white space in + generated source code. Problem reported by Frans Englich in + . + +2006-05-22 Paul Eggert + + * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the + shell, not within 'make', so that 'make' by an ordinary builder + (using GNU make) does not worry about configuring gzip. This also + works around a bug reported independently by Keith Thompson and by + Georg Schwarz, whereby gzip 1.2.4 --help would output usage on + stderr rather than stdout, messing up the build logs. + +2006-05-21 Joel E. Denny + + * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID + to make sure that YYID will never be unused. This fixes a 'make + maintainer-check' failure caused by the recent changes to the 'Trivial + grammars' test case, which caused g++ 4.1.0 to complain that YYID was + not used. + * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case. + +2006-05-21 Joel E. Denny + + * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the + state before an empty RHS is always resolved here. Only the location + of that state is guaranteed to be resolved, and that's enough. This + fixes the remaining bug reported by Derek M. Jones in + . + * tests/glr-regression.at (Uninitialized location when reporting + ambiguity): Test the above case. + Also, the embedded comments in this test case claim it checks the case + of an empty RHS that has inherited the initial location. However, the + corresponding LHS was already resolved, so yyresolveLocations didn't + actually have reason to modify it. Fix this by forcing + nondeterministic operation at the beginning of the parse. + +2006-05-20 Paul Eggert + + * data/c.m4 (b4_yy_symbol_print_generate): + (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than + 'const YYSTYPE', and similarly for YYLTYPE. This fixes one + of the bugs reported today by Derek M Jones in + . + * doc/bison.texinfo (Value Type): Document that YYSTYPE must be + defined to be a type name without parens or brackets. + (Location Type): Similarly for YYLTYPE. + * tests/regression.at (Trivial grammars): Put in a test for this + bug that will be caught by 'make maintainer-check' (though not, + alas, by 'make check' unless your compiler is picky). + +2006-05-19 Paul Eggert + + * NEWS: Version 2.2. + * configure.ac (AC_INIT): Likewise. + +2006-05-17 Joel E. Denny + + * data/glr.c (yyreportTree): Make room in yystates for the state + preceding the RHS. This fixes the segmentation fault reported by Derek + M. Jones in + . + (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing + to the user. Reported for yyreportTree by Derek M. Jones later in the + same thread. + * THANKS: Add Derek M. Jones. + Update my email address. + Fix typo in Steve Murphy's name. + +2006-05-14 Paul Eggert + + * data/glr.c (yyreportSyntaxError): Fix off-by-one error in + checking against YYLAST that caused the parser to miss a potential + alternative in its diagnostic. + Problem reported by Maria Jose Moron Fernandez in + . + * data/lalr1.cc (yysyntax_error_): Likewise. + * data/yacc.c (yysyntax_error): Likewise. + * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for + tokens, in case we run into an older C compiler. + (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros. + Use them to check for the off-by-one error fixed above. + + * data/yacc.c (yytnamerr): Fix typo: local var should be of type + YYSIZE_T, not size_t. + * tests/regression.at (Trivial grammars): New test, to catch + the error fixed by the above patch. + +2006-05-14 Akim Demaille + + * doc/bison.texinfo (C++ Bison Interface): Clarify the naming + scheme. + Reported by Steve Murphy. + +2006-05-14 Akim Demaille + + * data/glr.cc, data/lalr1.cc: Using %defines is mandatory. + * data/glr.cc: b4_location_flag is now b4_locations_flag. + +2006-05-14 Akim Demaille + + Implement --trace=m4. + * src/getargs.c (trace_types, trace_args): Accept trace_m4. + * src/output.c (output_skeleton): When set, pass -dV to m4. + + Factor the handling of flags in m4. + * src/output.c (prepare): Rename the muscle names debug, defines, + error_verbose to debug_flag, defines_flag, error_verbose_flag. + * data/c.m4: Adjust. + (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New. + Use b4_define_flag_if to define other b4_FLAG_if macros. + (b4_location_if): As a consequence, rename as... + (b4_locations_if): this, for consistency. + Adjust all the skeletons. + +2006-05-14 Akim Demaille + + * etc/bench.pm: Shorten bench names. + +2006-05-14 Akim Demaille + + * src/output.h, src/output.c (error_verbose): Move to... + * src/getargs.h, src/getargs.c: here. + Sort the flags. + Adjust dependencies. + +2006-05-13 Paul Eggert + + * data/c.m4 (b4_copyright): Put the special exception for Bison + skeletons here, so we don't have to put it in each skeleton. All + uses changed. Suggested by Akim Demaille. Also, wrap the + copyright notice, in case it is longer than 80 columns. Replace + comma by newline after title. + +2006-05-11 Paul Eggert + + * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an + incompatibility, not a bug. Mention that it wasn't fixed as of + flex 2.5.33. + 2006-05-11 Akim Demaille * examples/extexi: Enforce the precedence of concatenation over >>. - Reported by tommy.nordgren@chello.se + Reported by Tommy Nordgren. 2006-05-11 Akim Demaille @@ -10,6 +271,17 @@ with the member "token". Reported by Martin Nylin. +2006-05-08 Paul Eggert + + * data/glr.c: Switch to Bison 2.2 special-exception language in + the copyright notice. Use more-regular format for titles and + copyright notices. + * data/glr.cc: Likewise. + * data/location.cc: Likewise. + * data/yacc.cc: Likewise. + * doc/bison.texinfo (Conditions): Document this. + * NEWS: likewise. Upgrade version to 2.2. + 2006-04-27 Akim Demaille * data/glr.cc: Remove dead code. @@ -15850,3 +16122,5 @@ Copying and distribution of this file, with or without modification, are permitted provided the copyright notice and this notice are preserved. + +$Id$