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Port details
bison20 1.875_4 devel Deleted on this many watch lists=0 search for ports that depend on this port
A parser generator from FSF, (mostly) compatible with Yacc
Was Maintained by: ade@FreeBSD.org search for ports maintained by this maintainer
Port Added: 17 Nov 2005 00:19:15
License: not specified in port


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.

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.

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.)
SVNWeb : Distfiles Availability : PortsMon

NOTE: FreshPorts displays only required dependencies information. Optional dependencies are not covered.

Required To Build:
  1. devel/m4
Required To Run:
  1. devel/m4
Required Libraries:
  1. devel/gettext
There are no ports dependent upon this port

No installation instructions: this port has been deleted.

The package name of this deleted port was: bison


Configuration Options
     No options to configure

Master Sites:
  1. ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/distfiles/
  2. ftp://ftp.chg.ru/pub/gnu/bison/
  3. ftp://ftp.dti.ad.jp/pub/GNU/bison/
  4. ftp://ftp.gnu.org/gnu/bison/
  5. ftp://ftp.informatik.hu-berlin.de/pub/gnu/bison/
  6. ftp://ftp.informatik.rwth-aachen.de/pub/mirror/ftp.gnu.org/pub/gnu/bison/
  7. ftp://ftp.kddlabs.co.jp/GNU/bison/
  8. ftp://ftp.lip6.fr/pub/gnu/bison/
  9. ftp://ftp.mirrorservice.org/sites/ftp.gnu.org/gnu/bison/
  10. ftp://ftp.nstu.ru/pub/mirrors/ftp.gnu.org/gnu/bison/
  11. ftp://ftp.rediris.es/sites/ftp.gnu.org/ftp/gnu/bison/
  12. ftp://ftp.sunsite.org.uk/package/gnu/bison/
  13. ftp://ftp.wustl.edu/mirrors/gnu/bison/
  14. ftp://www.t.ring.gr.jp/pub/GNU/bison/
  15. http://ftp.funet.fi/pub/gnu/prep/bison/
  16. http://ftp.gnu.org/gnu/bison/
  17. http://mirrors.usc.edu/pub/gnu/bison/
  18. http://www.gtlib.cc.gatech.edu/pub/gnu/gnu/bison/
  19. http://www.t.ring.gr.jp/archives/GNU/bison/

Number of commits found: 1

Commit History - (may be incomplete: see SVNWeb link above for full details)
DateByDescription
17 Nov 2005 00:18:15
Original commit files touched by this commit  1.875_4
ade search for other commits by this committer
Remove stillborn bison20

Number of commits found: 1

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