Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-17 00:03:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

* data/glr.c: Switch to Bison 2.2 special-exception language in

Browse Source 
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.
This commit is contained in:
Paul Eggert
2006-05-09 06:40:13 +00:00
parent f5d5ecdfaf
commit 193d7c7054
7 changed files with 172 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
doc/bison.texinfo
View File

@@ -356,9 +356,10 @@ This edition corresponds to version @value{VERSION} of Bison.
@node Conditions
@unnumbered Conditions for Using Bison
As of Bison version 1.24, we have changed the distribution terms for
@code{yyparse} to permit using Bison's output in nonfree programs when
Bison is generating C code for @acronym{LALR}(1) parsers. Formerly, these
The distribution terms for Bison-generated parsers permit using the
parsers in nonfree programs. Before Bison version 2.2, these extra
permissions applied only when Bison was generating @acronym{LALR}(1)
parsers in C@. And before Bison version 1.24, Bison-generated
parsers could be used only in programs that were free software.
The other @acronym{GNU} programming tools, such as the @acronym{GNU} C
@@ -370,10 +371,10 @@ License to all of the Bison source code.
The output of the Bison utility---the Bison parser file---contains a
verbatim copy of a sizable piece of Bison, which is the code for the
@code{yyparse} function. (The actions from your grammar are inserted
into this function at one point, but the rest of the function is not
changed.) When we applied the @acronym{GPL} terms to the code for
@code{yyparse},
parser's implementation. (The actions from your grammar are inserted
into this implementation at one point, but most of the rest of the
implementation is not changed.) When we applied the @acronym{GPL}
terms to the skeleton code for the parser's implementation,
the effect was to restrict the use of Bison output to free software.
We didn't change the terms because of sympathy for people who want to
@@ -383,13 +384,11 @@ encourage people to make other software free. So we decided to make the
practical conditions for using Bison match the practical conditions for
using the other @acronym{GNU} tools.
This exception applies only when Bison is generating C code for an
@acronym{LALR}(1) parser; otherwise, the @acronym{GPL} terms operate
as usual. You can
tell whether the exception applies to your @samp{.c} output file by
inspecting it to see whether it says ``As a special exception, when
this file is copied by Bison into a Bison output file, you may use
that output file without restriction.''
This exception applies when Bison is generating code for a parser.
You can tell whether the exception applies to a Bison output file by
inspecting the file for text beginning with ``As a special
exception@dots{}''. The text spells out the exact terms of the
exception.
@include gpl.texi