* configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our

[bison.git] / ChangeLog

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+2006-12-13  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+       * configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our
+       strange test case titles.  Reported by Bob Rossi.
+
+2006-12-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+       * TODO: Add pointer to Sylvain Schmitz's work on static detection
+       of potential ambiguities in GLR grammers.
+
+2006-12-12  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+       * tests/testsuite.at (AT_CHECK): When checking if $1 starts with
+       `bison ', use m4_index instead of m4_substr since chopping up a string
+       containing M4-special characters causes problems here.
+
+       Fix a couple of bugs related to special characters in user-specified
+       file names, and make it easier for skeletons to compute output file
+       names with the same file name prefix as Bison-computed output file
+       names.
+       * data/glr.cc, data/push.c, data/yacc.c: In @output, use
+       b4_parser_file_name and b4_spec_defines_file instead of
+       @output_parser_name@ and @output_header_name@, which are now redundant.
+       * data/glr.c, data/lalr1.cc: Likewise.  Also, in header #include's, use
+       b4_parser_file_name, b4_spec_defines_file, and the new
+       @basename(FILENAME@) instead of @output_parser_name@ and
+       @output_header_name@, which inappropriately escaped the file names as
+       C string literals.
+       * src/files.c (all_but_ext): Remove static qualifier.
+       (compute_output_file_names): Move `free (all_but_ext)' to...
+       (output_file_names_free): ... here since all_but_ext is needed later.
+       * src/files.h (all_but_ext): Extern.
+       * src/muscle_tab.h (MUSCLE_INSERT_STRING_RAW): New macro that does
+       exactly what MUSCLE_INSERT_STRING used to do.
+       (MUSCLE_INSERT_STRING): Use MUSCLE_OBSTACK_SGROW so that M4-special
+       characters are escaped properly.
+       * src/output.c (prepare): Define muscle file_name_all_but_ext as
+       all_but_ext.
+       For pkgdatadir muscle, maintain previous functionality by using
+       MUSCLE_INSERT_STRING_RAW instead of MUSCLE_INSERT_STRING.  The problem
+       is that b4_pkgdatadir is used inside m4_include in the skeletons, so
+       digraphs would never be expanded.  Hopefully no one has M4-special
+       characters in his Bison installation path.
+       * src/scan-skel.l: Don't parse @output_header_name@ and
+       @output_parser_name@ anymore since they're now redundant.
+       In @output, use decode_at_digraphs.
+       Parse a new @basename command that invokes last_component.
+       (decode_at_digraphs): New.
+       (BASE_QPUTS): Remove unused.
+       * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): New macro.
+       (Output file name): New tests.
+
+2006-12-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+       Warn about output files that are generated by the skeletons and that
+       conflict with other output files.
+       * data/glr.c: Don't generate the header file here when glr.cc does.
+       * src/files.c (file_names, file_names_count): New static globals.
+       (compute_output_file_names): Invoke output_file_name_check for files
+       not generated by the skeletons and remove existing checks.
+       (output_file_name_check): New function that warns about conflicting
+       output file names.
+       (output_file_names_free): Free file_names.
+       * src/files.h (output_file_name_check): Declare.
+       * src/scan-skel.l: Invoke output_file_name_check for files generated by
+       the skeletons.
+       * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): New.
+       (Conflicting output files): New tests.
+
 2006-12-09  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
        * doc/bison.texinfo: Fix a couple of typos.