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D.gnu - lexer for flex

reply C.R.Chafer <blackmarlin nospam.asean-mail.com> writes:
I have written a flex lexer for d - source attached
please point out any bugs

(bison parser to follow when written)

C 2002/6/11
Jun 11 2002
parent reply "Martin M. Pedersen" <mmp www.moeller-pedersen.dk> writes:
"C.R.Chafer" <blackmarlin nospam.asean-mail.com> wrote in message
news:ae5bmk$2u97$1 digitaldaemon.com...

 Content-Transfer-Encoding: 8Bit

 I have written a flex lexer for d - source attached
 please point out any bugs

 (bison parser to follow when written)


It seems you have started what I did too :-) However, I ran into problems
with the declaration grammar. The problem is that bison does not do N
look-ahead that seems to be required by the D grammar - at least if
"parse.c" is to be translated more or less directly. The problem is the
Parse::is...() methods in "parse.c" that makes the grammar LALR(N). I have
not figured out any way to solve this problem. Another problem is that you
cannot easily destinguish type names from other names as in C. If you find
your way around these problems, I would very much like to hear about it. I
stopped for these reasons.

I did the statements and expressions, though, and the grammar attached to
this mail might help you or someone else getting started. I guess
TOK_TYPENAME should not be defined as a token as i did, but I did not know
better. After once having problems porting a flex generated lexer to an
EBCDIC platform, I haven't used it since - so I don't have a .l file like
you. But if you substitute the token names it should do.

Regards,
Martin M. Pedersen



begin 666 grammar.y
M+RHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ

M.B!G<F%M;6%R+GDL=B Q+C0 ,C P,B\P-B\P,R R,#HT-3HT,"!M;7  17AP
M("0-"B  (" D4V]U<F-E.B O:&]M92]M;7 O87)C:&EV92]C=G-R;V]T+W!R
M:B]D9G)O;G0O<W)C+V=R86UM87(N>2QV("0-" T**BHJ*BHJ*BHJ*BHJ*BHJ
M*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ




M('1A9ST]5$]+7T1/0T-/34U%3E0 *3L-" T*("  (&EF("  :7-A<VT *2![




M*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BH-

M*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ

M3TM?4U!!0T4-"B5T;VME;B  5$]+7T-/34U%3E0-"B5T;VME;B  5$]+7T1/
M0T-/34U%3E0-"B5T;VME;B  5$]+7T)!1$-(05(-" T*+RH 4W!E8VEA;"!H


M96X (%1/2U]35%))3D=?3$E415)!3 T*)71O:V5N("!43TM?24Y414=%4E],


M;W)D<R!I;B!A;'!H86)E=&EC86P ;W)D97( *B\-"B5T;VME;B  5$]+7T%"


M(%1/2U]"250-"B5T;VME;B  5$]+7T)/1%D-"B5T;VME;B  5$]+7T)214%+


M5 T*)71O:V5N("!43TM?0TA!4 T*)71O:V5N("!43TM?0TQ!4U,-"B5T;VME




M=&]K96X (%1/2U]$3U5"3$4-"B5T;VME;B  5$]+7T5,4T4-"B5T;VME;B  



M;B  5$]+7T9/4 T*)71O:V5N("!43TM?1T]43PT*)71O:V5N("!43TM?248-

M=&]K96X (%1/2U])3 T*)71O:V5N("!43TM?24Y/550-"B5T;VME;B  5$]+

M4DE!3E0-"B5T;VME;B  5$]+7TQ/3D<-"B5T;VME;B  5$]+7TY%5PT*)71O




M5$]+7U-93D-(4D].25I%1 T*)71O:V5N("!43TM?5$A)4PT*)71O:V5N("!4
M3TM?5$A23U<-"B5T;VME;B  5$]+7U12544-"B5T;VME;B  5$]+7U1260T*
M)71O:V5N("!43TM?5%E0141%1 T*)71O:V5N("!43TM?54)95$4-"B5T;VME

M3$].1PT*)71O:V5N("!43TM?54Y)3TX-"B5T;VME;B  5$]+7U532$]25 T*
M)71O:V5N("!43TM?5D524TE/3 T*)71O:V5N("!43TM?5D])1 T*)71O:V5N


M+PT*)71O:V5N("!43TM?4TQ!4T  ("  ("  ("  ("  (" O*B O("  ("HO

M"B5T;VME;B  5$]+7T1/5"  ("  ("  ("  ("  ("  +RH +B  (" J+PT*

M=&]K96X (%1/2U]$3U1?1$]47T1/5"  ("  ("  ("\J("XN+B  *B\-"B5T
M;VME;B  5$]+7T%.1"  ("  ("  ("  ("  ("  +RH )B  (" J+PT*)71O

M96X (%1/2U]!3D1?04Y$("  ("  ("  ("  ("\J("8F("  *B\-"B5T;VME
M;B  5$]+7T]2("  ("  ("  ("  ("  ("  +RH ?"  (" J+PT*)71O:V5N

M(%1/2U]/4E]/4B  ("  ("  ("  ("  ("\J('Q\("  *B\-"B5T;VME;B  
M5$]+7TU)3E53("  ("  ("  ("  ("  +RH +2  (" J+PT*)71O:V5N("!4

M2U]-24Y54U]-24Y54R  ("  ("  ("\J("TM("  *B\-"B5T;VME;B  5$]+
M7U!,55, ("  ("  ("  ("  ("  +RH *R  (" J+PT*)71O:V5N("!43TM?

M3%537U!,55, ("  ("  ("  ("\J("LK("  *B\-"B5T;VME;B  5$]+7TQ4
M("  ("  ("  ("  ("  ("  +RH /"  (" J+PT*)71O:V5N("!43TM?3%1?

M5"  ("  ("  ("  ("  ("\J(#P\("  *B\-"B5T;VME;B  5$]+7TQ47TQ4
M7T51("  ("  ("  ("  +RH /#P](" J+PT*)71O:V5N("!43TM?3%1?1U0 

M42  ("  ("  ("  ("\J(#P^/2  *B\-"B5T;VME;B  5$]+7T=4("  ("  
M("  ("  ("  ("  +RH /B  (" J+PT*)71O:V5N("!43TM?1U1?15$ ("  

M("  ("  ("  ("\J(#X^("  *B\-"B5T;VME;B  5$]+7T=47T=47T51("  
M("  ("  ("  +RH /CX](" J+PT*)71O:V5N("!43TM?1U1?1U1?1U0 ("  

M("  ("  ("\J(#X^/CT *B\-"B5T;VME;B  5$]+7TY/5"  ("  ("  ("  
M("  ("  +RH (2  (" J+PT*)71O:V5N("!43TM?3D]47T51("  ("  ("  

M("  ("\J("$]/2  *B\-"B5T;VME;B  5$]+7TY/5%],5%]'5"  ("  ("  
M("  +RH (3P^(" J+PT*)71O:V5N("!43TM?3D]47TQ47T=47T51("  ("  
M(" O*B A/#X
M("\J("$\("  *B\-"B5T;VME;B  5$]+7TY/5%],5%]%42  ("  ("  ("  
M+RH (3P](" J+PT*)71O:V5N("!43TM?3D]47T=4("  ("  ("  ("  (" O

M("$^/2  *B\-"B5T;VME;B  5$]+7U!!4D%.7T]014X ("  ("  ("  +RH 
M*"  (" J+PT*)71O:V5N("!43TM?4$%204Y?0TQ/4T4 ("  ("  (" O*B I

M("  *B\-"B5T;VME;B  5$]+7T)204-+151?0TQ/4T4 ("  ("  +RH 72  
M(" J+PT*)71O:V5N("!43TM?0U523%E?3U!%3B  ("  ("  (" O*B![("  

M*B\-"B5T;VME;B  5$]+7U%-05)+("  ("  ("  ("  ("  +RH /R  (" J
M+PT*)71O:V5N("!43TM?0T]-34$ ("  ("  ("  ("  (" O*B L("  ("HO

M"B5T;VME;B  5$]+7T-/3$].("  ("  ("  ("  ("  +RH .B  (" J+PT*

M=&]K96X (%1/2U]%42  ("  ("  ("  ("  ("  ("\J(#T ("  *B\-"B5T
M;VME;B  5$]+7T517T51("  ("  ("  ("  ("  +RH /3T (" J+PT*)71O

M96X (%1/2U]35$%2("  ("  ("  ("  ("  ("\J("H ("  *B\-"B5T;VME
M;B  5$]+7U-405)?15$ ("  ("  ("  ("  +RH *CT (" J+PT*)71O:V5N


M5$]+7UA/4B  ("  ("  ("  ("  ("  +RH 7B  (" J+PT*)71O:V5N("!4

M2U].14< ("  ("  ("  ("  ("  ("\J('X ("  *B\-"B5T;VME;B  5$]+

M="!C;VYF;&EC=',Z( T*+2!D86YG;&EN9R B96QS92( :6X (FEF( T**B\-

M*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ

M*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ
M*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*B\-" T*:6YP=70-"B  (" Z('-T871E;65N




M*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ

M*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ

M;&ES= T*("  (#H
M<W1A=&5M96YT7VQI<W0-"B  (" Z('-T871E;65N= T*("  ('P <W1A=&5M



M=&%T96UE;G0-"B  ("!\(&EF7W-T871E;65N= T*("  ('P =VAI;&5?<W1A

M=&%T96UE;G0-"B  ("!\('-W:71C:%]S=&%T96UE;G0-"B  ("!\(&-A<V5?



M?"!W:71H7W-T871E;65N= T*("  ('P <WEN8VAR;VYI>F5D7W-T871E;65N
M= T*("  ('P =')Y7W-T871E;65N= T*("  ('P =&AR;W=?<W1A=&5M96YT

M;65N= T*("  (#H



M14U)( T*("  (#L-
M87)I86)L95]D96-L87)A=&EO;B!43TM?4T5-20T*("  (#L-" T*:69?<W1A



M('-T871E;65N= T*("  (#L-
M3TM?5TA)3$4 5$]+7U!!4D%.7T]014X 97AP<F5S<VEO;B!43TM?4$%204Y?

M"B  (" Z(%1/2U]$3R!S=&%T96UE;G0 5$]+7U=(24Q%(%1/2U]005)!3E]/


M;FET(%1/2U]314U)(&]P=%]E>'!R97-S:6]N(%1/2U]314U)(&]P=%]E>'!R



M=&%T96UE;G0-"B  (" Z(%1/2U]35TE40T  5$]+7U!!4D%.7T]014X 97AP



M;65N= T*("  (#H 5$]+7T1%1D%53%0 5$]+7T-/3$].('-T871E;65N= T*
M("  (#L-

M871E;65N= T*("  (#H 5$]+7T)214%+(&]P=%]I9&5N=&EF:65R(%1/2U]3


M871E;65N= T*("  (#H 5$]+7T=/5$\ :61E;G1I9FEE<B!43TM?4T5-20T*
M("  (#L-" T*=VET:%]S=&%T96UE;G0-"B  (" Z(%1/2U]7251((%1/2U]0
M05)!3E]/4$5.(&5X<')E<W-I;VX 5$]+7U!!4D%.7T-,3U-%(&)L;V-K7W-T
M871E;65N= T*("  (#L-" T*<WEN8VAR;VYI>F5D7W-T871E;65N= T*("  
M(#H
M2%)/3DE:140 5$]+7U!!4D%.7T]014X 97AP<F5S<VEO;B!43TM?4$%204Y?


M"F-A=&-H97,-"B  (" Z(&QA<W1C871C: T*("  ('P 8V%T8V -"B  ("!\







M.B O*B!E;7!T>2 J+PT*("  ('P 5$]+7T9)3D%,3%D 8FQO8VM?<W1A=&5M

M;5]O<&5N(&]P=%]A<VU?:6YS=')U8W1I;VY?;&ES="!A<VU?8VQO<V4-"B  



M('L-"B  ("  ("  ("  (&ES87-M(#T ,#L-"B  ("  ("  ?0T*("  (#L-



M(&%S;5]I;G-T<G5C=&EO;B!43TM?4T5-22!A<VU?:6YS=')U8W1I;VY?;&ES
M= T*("  (#L-



M"B  ("!687)I86)L92!D96-L87)A=&EO;G,-" T**BHJ*BHJ*BHJ*BHJ*BHJ
M*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ

M*B!43T1/.B!);7!L96UE;G0 5'EP92 J+PT*("  (#H 5$]+7U194$5.04U%
M(&1E8VQA<F5D7VYA;65?;&ES= T*("  (#L-" T*9&5C;&%R961?;F%M95]L


M<F5D7VYA;64-"B  (" Z(&ED96YT:69I97( ;W!T7VEN:71I86QI>F%T:6]N

M5$]+7T51(&%S<VEG;FUE;G1?97AP<F5S<VEO; T*("  (#L-
M*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ




M(#L-" T*97AP<F5S<VEO; T*("  (#H 87-S:6=N;65N=%]E>'!R97-S:6]N


M8V]N9&ET:6]N86Q?97AP<F5S<VEO; T*("  ('P 87-S:6=N;65N=%]E>'!R
M97-S:6]N(&%S<VEG;FUE;G1?;W!E<F%T;W( 8V]N9&ET:6]N86Q?97AP<F5S
M<VEO; T*("  (#L-" T*87-S:6=N;65N=%]O<&5R871O< T*("  (#H 5$]+


M3TM?4$520T5.5%]%40T*("  ('P 5$]+7T%.1%]%40T*("  ('P 5$]+7T]2

M?"!43TM?3%1?3%1?15$-"B  ("!\(%1/2U]'5%]'5%]%40T*("  ('P 5$]+


M;W)?97AP<F5S<VEO;B!43TM?44U!4DL 97AP<F5S<VEO;B!43TM?0T],3TX 
M8V]N9&ET:6]N86Q?97AP<F5S<VEO; T*("  (#L-" T*;&]G:6-A;%]O<E]E

M?"!L;V=I8V%L7V]R7V5X<')E<W-I;VX 5$]+7T]27T]2(&QO9VEC86Q?86YD

M"B  (" Z(&]R7V5X<')E<W-I;VX-"B  ("!\(&QO9VEC86Q?86YD7V5X<')E
M<W-I;VX 5$]+7T%.1%]!3D0 ;W)?97AP<F5S<VEO; T*("  (#L-" T*;W)?
M97AP<F5S<VEO; T*("  (#H >&]R7V5X<')E<W-I;VX-"B  ("!\(&]R7V5X

M97AP<F5S<VEO; T*("  (#H 86YD7V5X<')E<W-I;VX-"B  ("!\('AO<E]E


M?"!A;F1?97AP<F5S<VEO;B!43TM?04Y$(&5Q=6%L:71Y7V5X<')E<W-I;VX-

M86Q?97AP<F5S<VEO; T*("  ('P 97%U86QI='E?97AP<F5S<VEO;B!E<75A


M2U].3U1?15$-"B  ("!\(%1/2U]%45]%45]%40T*("  ('P 5$]+7TY/5%]%
M45]%40T*("  (#L-




M(%1/2U].3U1?3%1?1U1?15$-"B  ("!\(%1/2U].3U1?3%1?1U0-"B  ("!\



M:69T7V5X<')E<W-I;VX-"B  (" Z(&%D9&ET:79E7V5X<')E<W-I;VX-"B  
M("!\('-H:69T7V5X<')E<W-I;VX <VAI9G1?;W!E<F%T;W( 861D:71I=F5?
M97AP<F5S<VEO; T*("  (#L-" T*<VAI9G1?;W!E<F%T;W(-"B  (" Z(%1/


M8V%T:79E7V5X<')E<W-I;VX-"B  ("!\(&%D9&ET:79E7V5X<')E<W-I;VX 
M861D:71I=F5?;W!E<F%T;W( ;75L=&EP;&EC871I=F5?97AP<F5S<VEO; T*
M("  (#L-

M<&QI8V%T:79E7V5X<')E<W-I;VX-"B  (" Z('5N87)Y7V5X<')E<W-I;VX-
M"B  ("!\(&UU;'1I<&QI8V%T:79E7V5X<')E<W-I;VX ;75L=&EP;&EC871I
M=F5?;W!E<F%T;W( =6YA<GE?97AP<F5S<VEO; T*("  (#L-" T*;75L=&EP



M3D0 =6YA<GE?97AP<F5S<VEO; T*("  ('P 5$]+7U!,55-?4$Q54R!U;F%R

M<F5S<VEO; T*("  ('P 5$]+7U-405( =6YA<GE?97AP<F5S<VEO; T*("  
M('P 5$]+7TU)3E53('5N87)Y7V5X<')E<W-I;VX-"B  ("!\(%1/2U]03%53
M('5N87)Y7V5X<')E<W-I;VX-"B  ("!\(%1/2U].3U0 =6YA<GE?97AP<F5S

M3TM?1$5,151%('5N87)Y7V5X<')E<W-I;VX-"B  ("!\(%1/2U].15< ;F5W
M7V5X<')E<W-I;VX-"B  ("!\(%1/2U]005)!3E]/4$5.(%1/2U]465!%3D%-
M12!43TM?4$%204Y?0TQ/4T4 =6YA<GE?97AP<F5S<VEO; T*("  ('P 5$]+


M("  (#H

M<W-I;VX 5$]+7U!,55-?4$Q54PT*("  ('P <&]S=&9I>%]E>'!R97-S:6]N
M(%1/2U]-24Y54U]-24Y54PT*("  ('P <&]S=&9I>%]E>'!R97-S:6]N(%1/





M("  ?"!B;V]L7VQI=&5R86P-"B  ("!\(&YU;65R:6-?;&ET97)A; T*("  




M87)G=6UE;G1?;&ES= T*("  (#H +RH 96UP='D *B\-"B  ("!\(&%R9W5M

M;FUE;G1?97AP<F5S<VEO; T*("  ('P 87)G=6UE;G1?;&ES="!43TM?0T]-

M<VEO; T*("  (#H 5$]+7U194$5.04U%("\J(%1/1$\Z(&9I>" J+PT*("  
M(#L-" T*+RHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ

M("  3&ET97)A;',-" T**BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ
M*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ












`
end
Jun 11 2002
next sibling parent reply "Walter" <walter digitalmars.com> writes:
Why not just use lexer.c and parse.c more or less directly?
Jun 11 2002
next sibling parent C.R.Chafer <blackmarlin nospam.asean-mail.com> writes:
Walter wrote:


 Why not just use lexer.c and parse.c more or less directly?


No offence, but they are written in C++,  which will not interface to BTL 
and would probably be a pain to interface to GCC.

And anyway the best way to understand a language fully is to write a 
compiler for it.

PS: Thanks to MMP for the parser yacc source,  my version mainly consists 
of rebuilding a grammar I wrote some time ago to parse oomic - just got 
some shift/reduce conflicts to resolve.

C 2002/6/12
Jun 12 2002
prev sibling parent "Martin M. Pedersen" <mmp www.moeller-pedersen.dk> writes:
"Walter" <walter digitalmars.com> wrote in message
news:ae60k2$iq5$1 digitaldaemon.com...

 Why not just use lexer.c and parse.c more or less directly?


My reasons are the same as described by C.R.Chafer, portability and
understanding. Also, using a tool like bison documents the grammar, makes it
easier to maintain and experiment with, and it pinpoints ambiguties in the
grammar.

Regards,
Martin M. Pedersen
Jun 12 2002
prev sibling parent reply Erik de Castro Lopo <nospam mega-nerd.com> writes:
"Martin M. Pedersen" wrote:

 
 It seems you have started what I did too :-) However, I ran into problems
 with the declaration grammar. The problem is that bison does not do N
 look-ahead that seems to be required by the D grammar - at least if
 "parse.c" is to be translated more or less directly. The problem is the
 Parse::is...() methods in "parse.c" that makes the grammar LALR(N). I have
 not figured out any way to solve this problem. Another problem is that you
 cannot easily destinguish type names from other names as in C. If you find
 your way around these problems, I would very much like to hear about it. I
 stopped for these reasons.


Bison is also able to generate GLR parsers (since 1.50) via the 
"%glr-parser" option. Have you looked that using this?

Erik
-- 
+-----------------------------------------------------------+
  Erik de Castro Lopo  nospam mega-nerd.com (Yes it's valid)
+-----------------------------------------------------------+
Fundamentalist : Someone who is colour blind and yet wants everyone
else to see the world with the same lack of colour.
Jul 09 2004
parent reply "Nicolas Lehuen" <nicolas.lehuen thecrmcompany.com> writes:
I'm not expert in the parsing department, but I used ANTLR =
(http://www.antlr.org/) which is a LL(k) parser generator, outputing =

well ?

Regards,
Nicolas Lehuen

"Erik de Castro Lopo" <nospam mega-nerd.com> a =E9crit dans le message =
de news:40EF24E3.B5BE2EB5 mega-nerd.com...

 "Martin M. Pedersen" wrote:

=20
 It seems you have started what I did too :-) However, I ran into =




problems

 with the declaration grammar. The problem is that bison does not do =




N

 look-ahead that seems to be required by the D grammar - at least if
 "parse.c" is to be translated more or less directly. The problem is =




the

 Parse::is...() methods in "parse.c" that makes the grammar LALR(N). =




I have

 not figured out any way to solve this problem. Another problem is =




that you

 cannot easily destinguish type names from other names as in C. If =




you find

 your way around these problems, I would very much like to hear about =




it. I

 stopped for these reasons.


=20
 Bison is also able to generate GLR parsers (since 1.50) via the=20
 "%glr-parser" option. Have you looked that using this?
=20
 Erik
 --=20
 +-----------------------------------------------------------+
   Erik de Castro Lopo  nospam mega-nerd.com (Yes it's valid)
 +-----------------------------------------------------------+
 Fundamentalist : Someone who is colour blind and yet wants everyone
 else to see the world with the same lack of colour.
Oct 01 2004
parent Deja Augustine <deja scratch-ware.net> writes:
Nicolas Lehuen wrote:

 I'm not expert in the parsing department, but I used ANTLR

or C++. Maybe they could be nudged into generating D code as well ?
 
 Regards,
 Nicolas Lehuen
 
 "Erik de Castro Lopo" <nospam mega-nerd.com> a écrit dans le message de
news:40EF24E3.B5BE2EB5 mega-nerd.com...
 

"Martin M. Pedersen" wrote:


It seems you have started what I did too :-) However, I ran into problems
with the declaration grammar. The problem is that bison does not do N
look-ahead that seems to be required by the D grammar - at least if
"parse.c" is to be translated more or less directly. The problem is the
Parse::is...() methods in "parse.c" that makes the grammar LALR(N). I have
not figured out any way to solve this problem. Another problem is that you
cannot easily destinguish type names from other names as in C. If you find
your way around these problems, I would very much like to hear about it. I
stopped for these reasons.


Bison is also able to generate GLR parsers (since 1.50) via the 
"%glr-parser" option. Have you looked that using this?

Erik
-- 
+-----------------------------------------------------------+
  Erik de Castro Lopo  nospam mega-nerd.com (Yes it's valid)
+-----------------------------------------------------------+
Fundamentalist : Someone who is colour blind and yet wants everyone
else to see the world with the same lack of colour.


 
 


To the best of my knowledge, Andy Friesen on the d.D newsgroup posted 
his D ANTLR grammar.  Might be able to save yourself some work.

-Deja
Oct 02 2004