Grammars for Pascal and Borland Delphi
(When you misspell 'grammar' as 'gramar' or 'grammer' you will surely not find valuable material!)

There are some grammars around.

Borland Delphi grammars I know of are:

• Title: A Grammar for Borland Delphi 1.0 (out of date); short update: FParser.zip.

Author: Robert Zierer
Filesize: 113.839 Bytes
Comment: beta, more or less complete frontend, without symbol-table etc..
Required CompilerGenerator: TPYacc (modified) / DYacc
.
• Title: A Grammar for Borland Delphi 4.0.

Author: Robert Zierer
Filesize: 237.454 Bytes
Comment: only grammar, but with syntax-highlited crossreference listing, M$-DOS textfile
(
latest snapshots/updates:
2000-12-13: FParser.y.gz
2001-10-05: D4Grammar.V0.4.Noconfl.y.gz   D4Grammar.V0.4._.y.gz       both are bugfixes!
2002-02-11: Diffs.D4-D6.txt    some thoughts about a D6 grammar.
2002-04-12: Diffs.D4-D6.Addendum.txt addendum
2002-04-14: latest bug found by Jean-Pierre Planas:  "with ( t as TForm ).Canvas do ;"  see D4Grammar.V0.4.bug.txt
(BTW: This bug is in all other free Delphi grammars I came across!)

 You should join http://groups.yahoo.com/group/DelphiGrammar/ for a discussion of that grammar! In the files section there is also an excerpt of a handwritten scanner for the grammar.


)
Required CompilerGenerator: TPYacc (modified) / DYacc
.
• Title:

Author: "Jean-Pierre Planas" 
2002-04-12: uSoftBaseYacc.y.gz (based on D4Grammar.V0.4.Noconfl.y; spots some bugs in my version).
.
• Title: op4.zip

Author: "Volker W. Walter" 
Filesize: 25.752 Bytes
Comment: for use with COCO/R ver 1.45.
Required CompilerGenerator: CoCo/R resp. Delphi146.exe
    (http://cs.ru.ac.za/homes/cspt/cocor.htm)
    ftp://ftp.ssw.uni-linz.ac.at/pub/Coco
    (http://www.ssw.uni-linz.ac.at/Research/Projects/Coco/)
    http://www.tetzel.com/CocoR/       (Delphi version of CoCo/R)
.
Title: my tries to eliminate conflicts from the grammar
Source: op4_2.zip
.
• Title: ParseurDelphi

Version: 1.0
Author: Thierry Coq 
Date: 27.Dec.1997
Filename: delphipars.zip
Filedate: 26.Dec.1997
Filesize: 798.724
Comment: This directory contains the beginning of a Parser for Delphi 3 code, [...]
URL: http://wwwusers.imaginet.fr/~tcoq/US-delphi.html
.
• Title: Handwritten Parser for Delphi 4.0

Author: 
Site: http://members.xoom.com/jdtools/decam/
.
• Title: private correspondence between Robert Zierer, V.W.Walter and DoDi

e-mail: "DoDi" 
other e-mail addresses: see above and down.
.
• Title: GNU Pascal compiler (GPC)

Comment: was just a rumour in a newsgroup, didn't verify that
Site: ??
.

NewsGroups / Listserver for that topic:

• Decam
  (http://www.egroups.com/group/decam/info.html is out of date moved to
  http://www.onelist.com/  the decam list there is now closed due to low participation.
  Have a look at http://www.mwpages.com )

• Delphi Grammar on Yahoo Groups
  This group is intended to discuss grammars for Borland Delphi and bugfixes.
  http://groups.yahoo.com/group/DelphiGrammar/

• Pascal compiler for the Macintosh (PowerPC), now another port of FPC
  ( http://www.egroups.com/group/pascalcompiler/info.html)
  They switched to avalon, see http://pascal-central.com/osp/osp.html (Open Source Macintosh Pascal Compiler Project).

My modifications to TPYacc to generate my Delphi4.0 grammar were the following (the grammar is really large):

• in file yaccbase.pas:


const
max_elems  {: word} = 100; {50} (* maximum size of integer sets *)
• in file yacctabl.pas:


const
(* Maximum table sizes: *)
max_keys    {: word} =  997;  (* size of hash symbol table (prime number!)  *)
max_nts     {: word} =  2000;{300}  (* maximum number of nonterminals  *)
max_lits    {: word} =  max_nts + 256;  (* number of literals ( (max_nts) 300+256) *)
max_rules   {: word} =  max_nts + 1;  (* number of rules ( (max_nts) 300+1)  *)
max_types   {: word} =  100;  (* number of type tags *)
max_prec    {: word} =   50;  (* maximum precedence level *)
max_states  {: word} = 1600;{600}  (* number of LR(0) states *)
max_items   {: word} = 9000;{3000}  (* number of items *)
max_trans   {: word} = 9000;{3000}  (* number of transitions *)
max_redns   {: word} = 1200;  (* number of reductions *)

max_rule_len  {: word} =   64; {64}  (* maximum length of rules  *)
max_set_items {: word} =  200; {100} (* maximum number of items in an item set  *)