GLR parsers sometimes raise parse errors instead of performing the

default reduction.
Reported by Charles-Henry de Boysson.
* tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
check the length of the	traces when %glr.
(_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
GLR's traces.
(AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
Test GLR parsers.
* data/glr.c (YYLEFTMOST_STATE): Fix its value.
(yyltype): Remove the yy prefix from the member names.
(yytable): Complete its comment.
(yygetLRActions): Map error action number from YYTABLE from
YYTABLE_NINF to 0.
(yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
(which was a bug: it should have been YYTABEL_NINF, and yet it was
not satisfying as we could compare an YYACTION computed from
YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
only value for error actions.
(yyreportParseError): In verbose parse error messages, don't issue
`error' in the list of expected tokens.
* data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
next action to perform to match glr.c's decoding.
(yytable): Complete its comment.

1 files changed, 57 insertions, 56 deletions

diff --git a/THANKS b/THANKS
index 38e7e222..85c6a7d8 100644
--- a/THANKS
+++ b/THANKS
@@ -1,62 +1,63 @@
 Bison was originally written by Robert Corbett.  It would not be what
 it is today without the invaluable help of these people:
 
-Airy Andre		Airy.Andre@edf.fr
-Akim Demaille		akim@freefriends.org
-Albert Chin-A-Young	china@thewrittenword.com
-Alexander Belopolsky	alexb@rentec.com
-Andreas Schwab		schwab@suse.de
-Arnold Robbins		arnold@skeeve.com
-Art Haas                ahaas@neosoft.com
-Benoit Perrot		benoit.perrot@epita.fr
-Bruce Lilly		blilly@erols.com
-Cris Bailiff		c.bailiff+bison@awayweb.com
-Cris van Pelt		cris@amf03054.office.wxs.nl
-Daniel Hagerty		hag@gnu.org
-David J. MacKenzie	djm@gnu.org
-Dick Streefland		dick.streefland@altium.nl
-Enrico Scholz		enrico.scholz@informatik.tu-chemnitz.de
-Evgeny Stambulchik	fnevgeny@plasma-gate.weizmann.ac.il
-Fabrice Bauzac		noon@cote-dazur.com
-Florian Krohm		florian@edamail.fishkill.ibm.com
-H. Merijn Brand		h.m.brand@hccnet.nl
-Hans Aberg		haberg@matematik.su.se
-Jan Nieuwenhuizen       janneke@gnu.org
-Jesse Thilo		jthilo@gnu.org
-Jim Meyering		jim@meyering.net
-Juan Manuel Guerrero	ST001906@HRZ1.HRZ.TU-Darmstadt.De
-Kees Zeelenberg		kzlg@users.sourceforge.net
-Keith Browne		kbrowne@legato.com
-Laurent Mascherpa	laurent.mascherpa@epita.fr
-Magnus Fromreide	magfr@lysator.liu.se
-Marc Autret		autret_m@epita.fr
-Martin Mokrejs          mmokrejs@natur.cuni.cz
-Matt Kraai		kraai@alumni.cmu.edu
-Michael Hayes		m.hayes@elec.canterbury.ac.nz
-Mike Castle		dalgoda@ix.netcom.com
-Neil Booth		NeilB@earthling.net
-Nelson H. F. Beebe	beebe@math.utah.edu
-Nicolas Burrus		nicolas.burrus@epita.fr
-Nicolas Tisserand	nicolas.tisserand@epita.fr
-Noah Friedman		friedman@gnu.org
-Pascal Bart		pascal.bart@epita.fr
-Paul Eggert		eggert@twinsun.com
-Paul Hilfinger		Hilfinger@CS.Berkeley.EDU
-Per Allansson		per@appgate.com
-Peter Hámorský		hamo@upjs.sk
-Piotr Gackiewicz	gacek@intertel.com.pl
-R Blake			blakers@mac.com
-Raja R Harinath		harinath@cs.umn.edu
-Richard Stallman	rms@gnu.org
-Robert Anisko		anisko_r@epita.fr
-Shura			debil_urod@ngs.ru
-Tim Josling		tej@melbpc.org.au
-Tom Lane		tgl@sss.pgh.pa.us
-Tom Tromey		tromey@cygnus.com
-Wayne Green		wayne@infosavvy.com
-Wolfram Wagner		ww@mpi-sb.mpg.de
-Wwp			subscript@free.fr
-Zack Weinberg		zack@codesourcery.com
+Airy Andre                Airy.Andre@edf.fr
+Akim Demaille             akim@freefriends.org
+Albert Chin-A-Young       china@thewrittenword.com
+Alexander Belopolsky      alexb@rentec.com
+Andreas Schwab            schwab@suse.de
+Arnold Robbins            arnold@skeeve.com
+Art Haas                  ahaas@neosoft.com
+Benoit Perrot             benoit.perrot@epita.fr
+Bruce Lilly               blilly@erols.com
+Charles-Henri de Boysson  deboys_c@epita.fr
+Cris Bailiff              c.bailiff+bison@awayweb.com
+Cris van Pelt             cris@amf03054.office.wxs.nl
+Daniel Hagerty            hag@gnu.org
+David J. MacKenzie        djm@gnu.org
+Dick Streefland           dick.streefland@altium.nl
+Enrico Scholz             enrico.scholz@informatik.tu-chemnitz.de
+Evgeny Stambulchik        fnevgeny@plasma-gate.weizmann.ac.il
+Fabrice Bauzac            noon@cote-dazur.com
+Florian Krohm             florian@edamail.fishkill.ibm.com
+H. Merijn Brand           h.m.brand@hccnet.nl
+Hans Aberg                haberg@matematik.su.se
+Jan Nieuwenhuizen         janneke@gnu.org
+Jesse Thilo               jthilo@gnu.org
+Jim Meyering              jim@meyering.net
+Juan Manuel Guerrero      ST001906@HRZ1.HRZ.TU-Darmstadt.De
+Kees Zeelenberg           kzlg@users.sourceforge.net
+Keith Browne              kbrowne@legato.com
+Laurent Mascherpa         laurent.mascherpa@epita.fr
+Magnus Fromreide          magfr@lysator.liu.se
+Marc Autret               autret_m@epita.fr
+Martin Mokrejs            mmokrejs@natur.cuni.cz
+Matt Kraai                kraai@alumni.cmu.edu
+Michael Hayes             m.hayes@elec.canterbury.ac.nz
+Mike Castle               dalgoda@ix.netcom.com
+Neil Booth                NeilB@earthling.net
+Nelson H. F. Beebe        beebe@math.utah.edu
+Nicolas Burrus            nicolas.burrus@epita.fr
+Nicolas Tisserand         nicolas.tisserand@epita.fr
+Noah Friedman             friedman@gnu.org
+Pascal Bart               pascal.bart@epita.fr
+Paul Eggert               eggert@twinsun.com
+Paul Hilfinger            Hilfinger@CS.Berkeley.EDU
+Per Allansson             per@appgate.com
+Peter Hámorský            hamo@upjs.sk
+Piotr Gackiewicz          gacek@intertel.com.pl
+R Blake                   blakers@mac.com
+Raja R Harinath           harinath@cs.umn.edu
+Richard Stallman          rms@gnu.org
+Robert Anisko             anisko_r@epita.fr
+Shura                     debil_urod@ngs.ru
+Tim Josling               tej@melbpc.org.au
+Tom Lane                  tgl@sss.pgh.pa.us
+Tom Tromey                tromey@cygnus.com
+Wayne Green               wayne@infosavvy.com
+Wolfram Wagner            ww@mpi-sb.mpg.de
+Wwp                       subscript@free.fr
+Zack Weinberg             zack@codesourcery.com
 
 Many people are not named here because we lost track of them.  We
 thank them!  Please, help us keeping this list up to date.