Date: Mon, 26 Dec 2016 16:43:23 +0000 (UTC) From: Sunpoet Po-Chuan Hsieh <sunpoet@FreeBSD.org> To: ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: svn commit: r429539 - head/devel/bison Message-ID: <201612261643.uBQGhNOl099376@repo.freebsd.org>
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Author: sunpoet Date: Mon Dec 26 16:43:22 2016 New Revision: 429539 URL: https://svnweb.freebsd.org/changeset/ports/429539 Log: - Change from post-extract: to post-patch: - Cosmetic change - Update WWW Modified: head/devel/bison/Makefile head/devel/bison/pkg-descr Modified: head/devel/bison/Makefile ============================================================================== --- head/devel/bison/Makefile Mon Dec 26 16:43:18 2016 (r429538) +++ head/devel/bison/Makefile Mon Dec 26 16:43:22 2016 (r429539) @@ -15,30 +15,27 @@ BUILD_DEPENDS= m4>=1.4.16,1:devel/m4 RUN_DEPENDS= m4>=1.4.16,1:devel/m4 OPTIONS_DEFINE= EXAMPLES NLS +OPTIONS_SUB= yes -USES= charsetfix makeinfo perl5 tar:xz -USE_PERL5= build -GNU_CONFIGURE= yes +CONFIGURE_ARGS+=--disable-yacc CPPFLAGS+= -I${LOCALBASE}/include +GNU_CONFIGURE= yes LDFLAGS+= -L${LOCALBASE}/lib - -CONFIGURE_ARGS+=--disable-yacc +USE_PERL5= build +USES= charsetfix makeinfo perl5 tar:xz INFO= bison +PORTEXAMPLES= calc++ -NLS_USES= gettext NLS_CONFIGURE_ENABLE= nls -OPTIONS_SUB= yes +NLS_USES= gettext -post-extract: +post-patch: @${RM} ${WRKSRC}/doc/bison.info* @${REINPLACE_CMD} 's/MANS = yacc.1/MANS =/' ${WRKSRC}/doc/Makefile.in -PORTEXAMPLES= calc++ - post-install: @${MKDIR} ${STAGEDIR}${EXAMPLESDIR}/calc++ - ${INSTALL_DATA} ${WRKSRC}/examples/calc++/*.[chly]* \ - ${STAGEDIR}${EXAMPLESDIR}/calc++ + ${INSTALL_DATA} ${WRKSRC}/examples/calc++/*.[chly]* ${STAGEDIR}${EXAMPLESDIR}/calc++ .include <bsd.port.mk> Modified: head/devel/bison/pkg-descr ============================================================================== --- head/devel/bison/pkg-descr Mon Dec 26 16:43:18 2016 (r429538) +++ head/devel/bison/pkg-descr Mon Dec 26 16:43:22 2016 (r429539) @@ -1,22 +1,13 @@ -Bison is a tool used to write parsers, such as the parser for GNU cc. -It is similar to Yacc, which is included in the base FreeBSD system. +Bison is a general-purpose parser generator that converts an annotated +context-free grammar into a deterministic LR or generalized LR (GLR) parser +employing LALR(1) parser tables. As an experimental feature, Bison can also +generate IELR(1) or canonical LR(1) parser tables. Once you are proficient with +Bison, you can use it to develop a wide range of language parsers, from those +used in simple desk calculators to complex programming languages. -The main difference between Bison and Yacc that I know of is that -Bison supports the @N construction, which gives you access to -the starting and ending line number and character number associated -with any of the symbols in the current rule. +Bison is upward compatible with Yacc: all properly-written Yacc grammars ought +to work with Bison with no change. Anyone familiar with Yacc should be able to +use Bison with little trouble. You need to be fluent in C or C++ programming in +order to use Bison. Java is also supported as an experimental feature. -Also, Bison supports the command `%expect N' which says not to mention -the conflicts if there are N shift/reduce conflicts and no reduce/reduce -conflicts. - -The differences in the algorithms stem mainly from the horrible -kludges that Johnson had to perpetrate to make Yacc fit in a PDP-11. - -Also, Bison uses a faster but less space-efficient encoding for the -parse tables (see Corbett's PhD thesis from Berkeley, "Static -Semantics in Compiler Error Recovery", June 1985, Report No. UCB/CSD -85/251), and more modern technique for generating the lookahead sets. -(See "Efficient Construction of LALR(1) Lookahead Sets" by F. DeRemer -and A. Pennello, in ACM TOPLS Vol 4 No 4, October 1982. Their -technique is the standard one now.) +WWW: https://www.gnu.org/software/bison/
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