| | 1 | Bison News |
| | 2 | ---------- |
| | 3 | |
| | 4 | Changes in version 1.49a: |
| | 5 | |
| | 6 | * Items overflow |
| | 7 | Bison no longer dumps core when there are too many items, it just |
| | 8 | dies. |
| | 9 | |
| | 10 | * Token end-of-file |
| | 11 | The token end of file may be specified by the user, in which case, |
| | 12 | the user symbol is used in the reports, the graphs, and the verbose |
| | 13 | error messages instead of `$', which remains being the defaults. |
| | 14 | For instance |
| | 15 | %token YYEOF 0 |
| | 16 | or |
| | 17 | %token YYEOF 0 "end of file" |
| | 18 | \f |
| | 19 | Changes in version 1.30: |
| | 20 | |
| | 21 | * `--defines' and `--graph' have now an optionnal argument which is the |
| | 22 | output file name. `-d' and `-g' do not change, they do not take any |
| | 23 | argument. |
| | 24 | |
| | 25 | * `%source_extension' and `%header_extension' are removed, failed |
| | 26 | experiment. |
| | 27 | |
| | 28 | * Portability fixes. |
| | 29 | \f |
| | 30 | Changes in version 1.29, 2001-09-07: |
| | 31 | |
| | 32 | * The output file does not define const, as this caused problems when used |
| | 33 | with common autoconfiguration schemes. If you still use ancient compilers |
| | 34 | that lack const, compile with the equivalent of the C compiler option |
| | 35 | `-Dconst='. autoconf's AC_C_CONST macro provides one way to do this. |
| | 36 | |
| | 37 | * Added `-g' and `--graph'. |
| | 38 | |
| | 39 | * The Bison manual is now distributed under the terms of the GNU FDL. |
| | 40 | |
| | 41 | * The input and the output files has automatically a similar extension. |
| | 42 | |
| | 43 | * Russian translation added. |
| | 44 | |
| | 45 | * NLS support updated; should hopefully be less troublesome. |
| | 46 | |
| | 47 | * Added the old Bison reference card. |
| | 48 | |
| | 49 | * Added `--locations' and `%locations'. |
| | 50 | |
| | 51 | * Added `-S' and `--skeleton'. |
| | 52 | |
| | 53 | * `%raw', `-r', `--raw' is disabled. |
| | 54 | |
| | 55 | * Special characters are escaped when output. This solves the problems |
| | 56 | of the #line lines with path names including backslashes. |
| | 57 | |
| | 58 | * New directives. |
| | 59 | `%yacc', `%fixed_output_files', `%defines', `%no_parser', `%verbose', |
| | 60 | `%debug', `%source_extension' and `%header_extension'. |
| | 61 | |
| | 62 | * @$ |
| | 63 | Automatic location tracking. |
| | 64 | \f |
| | 65 | Changes in version 1.28, 1999-07-06: |
| | 66 | |
| | 67 | * Should compile better now with K&R compilers. |
| | 68 | |
| | 69 | * Added NLS. |
| | 70 | |
| | 71 | * Fixed a problem with escaping the double quote character. |
| | 72 | |
| | 73 | * There is now a FAQ. |
| | 74 | \f |
| | 75 | Changes in version 1.27: |
| | 76 | |
| | 77 | * The make rule which prevented bison.simple from being created on |
| | 78 | some systems has been fixed. |
| | 79 | \f |
| | 80 | Changes in version 1.26: |
| | 81 | |
| | 82 | * Bison now uses automake. |
| | 83 | |
| | 84 | * New mailing lists: <bug-bison@gnu.org> and <help-bison@gnu.org>. |
| | 85 | |
| | 86 | * Token numbers now start at 257 as previously documented, not 258. |
| | 87 | |
| | 88 | * Bison honors the TMPDIR environment variable. |
| | 89 | |
| | 90 | * A couple of buffer overruns have been fixed. |
| | 91 | |
| | 92 | * Problems when closing files should now be reported. |
| | 93 | |
| | 94 | * Generated parsers should now work even on operating systems which do |
| | 95 | not provide alloca(). |
| | 96 | \f |
| | 97 | Changes in version 1.25, 1995-10-16: |
| | 98 | |
| | 99 | * Errors in the input grammar are not fatal; Bison keeps reading |
| | 100 | the grammar file, and reports all the errors found in it. |
| | 101 | |
| | 102 | * Tokens can now be specified as multiple-character strings: for |
| | 103 | example, you could use "<=" for a token which looks like <=, instead |
| | 104 | of chosing a name like LESSEQ. |
| | 105 | |
| | 106 | * The %token_table declaration says to write a table of tokens (names |
| | 107 | and numbers) into the parser file. The yylex function can use this |
| | 108 | table to recognize multiple-character string tokens, or for other |
| | 109 | purposes. |
| | 110 | |
| | 111 | * The %no_lines declaration says not to generate any #line preprocessor |
| | 112 | directives in the parser file. |
| | 113 | |
| | 114 | * The %raw declaration says to use internal Bison token numbers, not |
| | 115 | Yacc-compatible token numbers, when token names are defined as macros. |
| | 116 | |
| | 117 | * The --no-parser option produces the parser tables without including |
| | 118 | the parser engine; a project can now use its own parser engine. |
| | 119 | The actions go into a separate file called NAME.act, in the form of |
| | 120 | a switch statement body. |
| | 121 | \f |
| | 122 | Changes in version 1.23: |
| | 123 | |
| | 124 | The user can define YYPARSE_PARAM as the name of an argument to be |
| | 125 | passed into yyparse. The argument should have type void *. It should |
| | 126 | actually point to an object. Grammar actions can access the variable |
| | 127 | by casting it to the proper pointer type. |
| | 128 | |
| | 129 | Line numbers in output file corrected. |
| | 130 | \f |
| | 131 | Changes in version 1.22: |
| | 132 | |
| | 133 | --help option added. |
| | 134 | \f |
| | 135 | Changes in version 1.20: |
| | 136 | |
| | 137 | Output file does not redefine const for C++. |
| | 138 | |
| | 139 | Local Variables: |
| | 140 | mode: outline |
| | 141 | End: |
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