projects / bison.git / blame
| Commit | Line | Data |
|---|---|---|
| 6780ca7a DM |
1 | Bison News |
| 2 | ---------- | |
| 3 | ||
| 4be07551 JT |
4 | Change in version 1.26: |
| 5 | ||
| 6 | * Bison now uses automake. | |
| 7 | ||
| 8 | * New mailing lists: <bug-bison@gnu.org> and <help-bison@gnu.org>. | |
| 9 | ||
| 10 | * Token numbers now start at 257 as previously documented, not 258. | |
| 11 | ||
| 12 | * Bison honors the TMPDIR environment variable. | |
| 13 | ||
| 14 | * A couple of buffer overruns have been fixed. | |
| f51dbca1 JT |
15 | |
| 16 | * Problems when closing files should now be reported. | |
| 17 | ||
| 18 | * Generated parsers should now work even on operating systems which do | |
| 19 | not provide alloca(). | |
| 4be07551 | 20 | \f |
| df8878c5 RS |
21 | Change in version 1.25: |
| 22 | ||
| 23 | * Errors in the input grammar are not fatal; Bison keeps reading | |
| 24 | the grammar file, and reports all the errors found in it. | |
| 25 | ||
| 26 | * Tokens can now be specified as multiple-character strings: for | |
| 27 | example, you could use "<=" for a token which looks like <=, instead | |
| 28 | of chosing a name like LESSEQ. | |
| 29 | ||
| 30 | * The %token_table declaration says to write a table of tokens (names | |
| 31 | and numbers) into the parser file. The yylex function can use this | |
| 32 | table to recognize multiple-character string tokens, or for other | |
| 33 | purposes. | |
| 34 | ||
| 35 | * The %no_lines declaration says not to generate any #line preprocessor | |
| 36 | directives in the parser file. | |
| 37 | ||
| 38 | * The %raw declaration says to use internal Bison token numbers, not | |
| 39 | Yacc-compatible token numbers, when token names are defined as macros. | |
| 40 | ||
| 41 | * The --no-parser option produces the parser tables without including | |
| 42 | the parser engine; a project can now use its own parser engine. | |
| 43 | The actions go into a separate file called NAME.act, in the form of | |
| 44 | a switch statement body. | |
| 45 | \f | |
| 6780ca7a DM |
46 | Changes in version 1.23: |
| 47 | ||
| 4d019228 DM |
48 | The user can define YYPARSE_PARAM as the name of an argument to be |
| 49 | passed into yyparse. The argument should have type void *. It should | |
| 50 | actually point to an object. Grammar actions can access the variable | |
| 51 | by casting it to the proper pointer type. | |
| 6780ca7a | 52 | |
| 6780ca7a | 53 | Line numbers in output file corrected. |
| 6780ca7a DM |
54 | \f |
| 55 | Changes in version 1.22: | |
| 56 | ||
| 57 | --help option added. | |
| 6780ca7a DM |
58 | \f |
| 59 | Changes in version 1.20: | |
| 60 | ||
| 61 | Output file does not redefine const for C++. |