#

 # Author: Makarius

 #

 # keywords.pl - generate outer syntax keyword files from session logs

 #

 ## arguments

 my ($keywords_name, $target_tool, $sessions) = @ARGV;

 ## keywords

 my %keywords;

 sub set_keyword {

   my ($name, $kind) = @_;

   if (defined $keywords{$name} and $keywords{$name} ne $kind and $keywords{$name} ne "minor") {

     if ($kind ne "minor") {

       print STDERR "### Inconsistent declaration of keyword \"${name}\": $keywords{$name} vs ${kind}\n";

       $keywords{$name} = $kind;

     }

   } else {

     $keywords{$name} = $kind;

   }

 }

 sub collect_keywords {

   while(<STDIN>) {

     if (m/^Outer syntax keyword:\s*"(.*)"/) {

       my $name = $1;

       &set_keyword($name, "minor");

     }

     elsif (m/^Outer syntax command:\s*"(.*)"\s*\((.*)\)/) {

       my $name = $1;

       my $kind = $2;

       &set_keyword($name, $kind);

     }

   }

 }

 ## Emacs output

 sub emacs_output {

   my @kinds = (

     "major",

     "minor",

     "control",

     "diag",

     "theory-begin",

     "theory-switch",

     "theory-end",

     "theory-heading",

     "theory-decl",

     "theory-script",

     "theory-goal",

     "qed",

     "qed-block",

     "qed-global",

     "proof-heading",

     "proof-goal",

     "proof-block",

     "proof-open",

     "proof-close",

     "proof-chain",

     "proof-decl",

     "proof-asm",

     "proof-asm-goal",

     "proof-script"

   );

   my $file = $keywords_name eq "" ? "isar-keywords.el" : "isar-keywords-${keywords_name}.el";

   open (OUTPUT, "> ${file}") || die "$!";

   select OUTPUT;

   print ";;\n";

   print ";; Keyword classification tables for Isabelle/Isar.\n";

   print ";; Generated from ${sessions}.\n";

   print ";; *** DO NOT EDIT *** DO NOT EDIT *** DO NOT EDIT ***\n";

   print ";;\n";

   for my $kind (@kinds) {

     my @names;

     for my $name (keys(%keywords)) {

       if ($kind eq "major" ? $keywords{$name} ne "minor" : $keywords{$name} eq $kind) {

         if ($kind ne "minor" or $name =~ m/^[A-Za-z0-9_]+$/) {

           push @names, $name;

         }

       }

     }

     @names = sort(@names);

     print "\n(defconst isar-keywords-${kind}";

     print "\n  '(";

     my $first = 1;

     for my $name (@names) {

       $name =~ s/([\.\*\+\?\[\]\^\$])/\\\\$1/g;

       if ($first) {

         print "\"${name}\"";

         $first = 0;

       }

       else {

         print "\n    \"${name}\"";

       }

     }

     print "))\n";

   }

   print "\n(provide 'isar-keywords)\n";

   close OUTPUT;

   select;

   print STDERR "${target_tool}: ${file}\n";

 }

 ## jEdit output

 sub jedit_output {

   my %keyword_types = (

     "minor"           => "KEYWORD4",

     "control"         => "INVALID",

     "diag"            => "LABEL",

     "theory-begin"    => "KEYWORD3",

     "theory-switch"   => "KEYWORD3",

     "theory-end"      => "KEYWORD3",

     "theory-heading"  => "OPERATOR",

     "theory-decl"     => "OPERATOR",

     "theory-script"   => "KEYWORD1",

     "theory-goal"     => "OPERATOR",

     "qed"             => "OPERATOR",

     "qed-block"       => "OPERATOR",

     "qed-global"      => "OPERATOR",

     "proof-heading"   => "OPERATOR",

     "proof-goal"      => "OPERATOR",

     "proof-block"     => "OPERATOR",

     "proof-open"      => "OPERATOR",

     "proof-close"     => "OPERATOR",

     "proof-chain"     => "OPERATOR",

     "proof-decl"      => "OPERATOR",

     "proof-asm"       => "KEYWORD2",

     "proof-asm-goal"  => "KEYWORD2",

     "proof-script"    => "KEYWORD1"

   );

   my $file = "isabelle.xml";

   open (OUTPUT, "> ${file}") || die "$!";

   select OUTPUT;

   print <<'EOF';

 <?xml version="1.0"?>

 <!DOCTYPE MODE SYSTEM "xmode.dtd">

 EOF

   print "<!-- Generated from ${sessions}. -->\n";

   print "<!-- *** DO NOT EDIT *** DO NOT EDIT *** DO NOT EDIT *** -->\n";

   print <<'EOF';

 <MODE>

   <PROPS>

     <PROPERTY NAME="commentStart" VALUE="(*"/>

     <PROPERTY NAME="commentEnd" VALUE="*)"/>

     <PROPERTY NAME="noWordSep" VALUE="_'.?"/>

     <PROPERTY NAME="indentOpenBrackets" VALUE="{"/>

     <PROPERTY NAME="indentCloseBrackets" VALUE="}"/>

     <PROPERTY NAME="unalignedOpenBrackets" VALUE="(" />

     <PROPERTY NAME="unalignedCloseBrackets" VALUE=")" />

     <PROPERTY NAME="tabSize" VALUE="2" />

     <PROPERTY NAME="indentSize" VALUE="2" />

   </PROPS>

   <RULES IGNORE_CASE="FALSE" HIGHLIGHT_DIGITS="FALSE" ESCAPE="\">

     <SPAN TYPE="COMMENT1" NO_ESCAPE="TRUE">

       <BEGIN>(*</BEGIN>

       <END>*)</END>

     </SPAN>

     <SPAN TYPE="COMMENT3" NO_ESCAPE="TRUE">

       <BEGIN>{*</BEGIN>

       <END>*}</END>

     </SPAN>

     <SPAN TYPE="LITERAL1">

       <BEGIN>`</BEGIN>

       <END>`</END>

     </SPAN>

     <SPAN TYPE="LITERAL3">

       <BEGIN>"</BEGIN>

       <END>"</END>

     </SPAN>

     <KEYWORDS>

 EOF

   for my $name (sort(keys(%keywords))) {

     my $kind = $keywords{$name};

     my $type = $keyword_types{$kind};

     if ($kind ne "minor" or $name =~ m/^[A-Za-z0-9_]+$/) {

       $name =~ s/&/&/g;

       $name =~ s/</&lt;/g;

       $name =~ s/>/</g;

       print "      <${type}>${name}</${type}>\n";

     }

   }

   print <<'EOF';

     </KEYWORDS>

   </RULES>

 </MODE>

 EOF

   close OUTPUT;

   select;

   print STDERR "${target_tool}: ${file}\n";

 }

 ## main

 &collect_keywords();

 eval "${target_tool}_output()";