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6deb44470e
* src/lex.c (percent_table): Also accept `%yacc', `%fixed_output_files', `%defines', `%no_parser', `%verbose', and `%debug'. Handle the actions for `%semantic_parser' and `%pure_parser' here, instead of returning a token. * src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused. * src/reader.c (read_declarations): Adjust. * src/files.c (open_files): Don't call `compute_base_names', don't compute `attrsfile' since they depend upon data which might be *in* the input file now. (output_files): Do it here. * src/output.c (output_headers): Document the fact that this patch introduces a guaranteed SEGV for semantic parsers. * doc/bison.texinfo: Document them. * tests/suite.at: Exercise these %options.
91 lines
2.5 KiB
Plaintext
91 lines
2.5 KiB
Plaintext
Bison News
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----------
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Changes in version 1.28a:
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* Russian translation added.
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* NLS support updated; should hopefully be less troublesome.
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* Added the old Bison reference card.
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* Added `--locations' and `%locations'.
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* New directives.
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`%yacc', `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
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`%debug'.
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Changes in version 1.28:
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* Should compile better now with K&R compilers.
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* Added NLS.
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* Fixed a problem with escaping the double quote character.
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* There is now a FAQ.
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Changes in version 1.27:
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* The make rule which prevented bison.simple from being created on
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some systems has been fixed.
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Changes in version 1.26:
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* Bison now uses automake.
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* New mailing lists: <bug-bison@gnu.org> and <help-bison@gnu.org>.
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* Token numbers now start at 257 as previously documented, not 258.
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* Bison honors the TMPDIR environment variable.
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* A couple of buffer overruns have been fixed.
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* Problems when closing files should now be reported.
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* Generated parsers should now work even on operating systems which do
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not provide alloca().
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Changes in version 1.25:
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* Errors in the input grammar are not fatal; Bison keeps reading
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the grammar file, and reports all the errors found in it.
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* Tokens can now be specified as multiple-character strings: for
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example, you could use "<=" for a token which looks like <=, instead
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of chosing a name like LESSEQ.
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* The %token_table declaration says to write a table of tokens (names
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and numbers) into the parser file. The yylex function can use this
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table to recognize multiple-character string tokens, or for other
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purposes.
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* The %no_lines declaration says not to generate any #line preprocessor
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directives in the parser file.
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* The %raw declaration says to use internal Bison token numbers, not
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Yacc-compatible token numbers, when token names are defined as macros.
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* The --no-parser option produces the parser tables without including
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the parser engine; a project can now use its own parser engine.
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The actions go into a separate file called NAME.act, in the form of
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a switch statement body.
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Changes in version 1.23:
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The user can define YYPARSE_PARAM as the name of an argument to be
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passed into yyparse. The argument should have type void *. It should
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actually point to an object. Grammar actions can access the variable
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by casting it to the proper pointer type.
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Line numbers in output file corrected.
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Changes in version 1.22:
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--help option added.
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Changes in version 1.20:
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Output file does not redefine const for C++.
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