#!/usr/bin/perl
#
#  Main authors:
#     Christian Schulte <schulte@gecode.org>
#
#  Copyright:
#     Christian Schulte, 2005
#
#  Last modified:
#     $Date: 2005-11-10 11:33:57 +0100 (Thu, 10 Nov 2005) $ by $Author: zayenz $
#     $Revision: 2534 $
#
#  This file is part of Gecode, the generic constraint
#  development environment:
#     http://www.gecode.org
#
#  See the file "LICENSE" for information on usage and
#  redistribution of this file, and for a
#     DISCLAIMER OF ALL WARRANTIES.
#
#

# 
# Get statistics for all files
#

$i = 0;

while ($file = @ARGV[$i++]) {
  open(FILE,"<$file");
  my $module = "UNKNOWN";
  my $cat    = "UNKNOWN";
  my $n_blank;
  my $n_comment;
  my $n_code;
  my $n_class;
  while ($l = <FILE>) {
    if ($l =~ /\/\/ STATISTICS: ([A-Za-z]+)-([A-Za-z]+)/) {
      $module = $1;
      $cat    = $2;
    }
    if ($l =~ /^[ \t]*$/) {
      $n_blank += 1;
    } elsif ($l =~ /^[ \t]*\/\//) {
      $n_comment += 1;
    } elsif ($l =~ /\/\*/) {
      $n_comment += 1;
      while (!($l =~ /\*\//) && ($l = <FILE>)) {
	$n_comment += 1;
      }
    } else {
      $n_code += 1;
    }
    if ($l =~ /class [A-Za-z_][A-Za-z0-9_]*.*\{/) {
      $n_class += 1;
    }
  }
  if ($module eq "UNKNOWN") {
    print "UNKNOWN: $file\n";
    exit 1;
  }
  $m{$module} = 1;
  $c{$cat} = 1;
  $class{"$module-$cat"} += $n_class;
  $comment{"$module-$cat"} += $n_comment;
  $blank{"$module-$cat"} += $n_blank;
  $code{"$module-$cat"} += $n_code;
  close FILE;
}

@modorder = ("kernel","search","int","set","minimodel",
	     "iter","support","example","test");

@catorder = ("core","var","prop","branch","post",
	     "int","set","stress","any","other");
$i = 0;

$modclear{"kernel"} = "Kernel";
$modclear{"search"} = "Search engines";
$modclear{"int"} = "Finite domain integers";
$modclear{"set"} = "Finite integer sets";
$modclear{"minimodel"} = "Minimal modelling support";
$modclear{"iter"} = "Range and value iterators";
$modclear{"support"} = "Support algorithms and datastructures";
$modclear{"example"} = "\%Example scripts";
$modclear{"test"} = "Systematic tests";

$catclear{"core"} = "Core functionality";
$catclear{"var"} = "Variables, views, and variable implementations";
$catclear{"prop"} = "Propagators";
$catclear{"branch"} = "Branchings";
$catclear{"post"} = "Posting propagators and branchings";
$catclear{"any"} = "All";
$catclear{"other"} = "Miscellaneous";
$catclear{"int"} = "Finite domain integers";
$catclear{"set"} = "Finite integer sets";
$catclear{"stress"} = "System stress";

print <<EOF
/**
  \\page PageCodeStat Gecode code statistics

The following approximate breakdown into the different parts of %Gecode
gives some statistics about the amount of code and documentation 
contained in the code (as comments) where blank lines are excluded. 

The abbreviation "loc" means "lines of code" and "lod" means "lines of 
documentation".

EOF
;


$an_code    = 0;
$an_comment = 0;
$an_class   = 0;

foreach $module (@modorder) {
  print " - " . $modclear{$module} . ": ";
  $mn_code    = 0;
  $mn_comment = 0;
  $mn_class   = 0;
  $n_cat = 0;
  $doc = "";
  foreach $cat (@catorder) {
    $k = "$module-$cat";
    if ($code{$k}) {
      $n_cat += 1;
      $doc = $doc . "   - " . $catclear{$cat} . ": ";
      $mn_code    += $code{$k};
      $mn_comment += $comment{$k};
      $mn_class   += $class{$k};
      $doc = $doc .  $class{$k} . " classes, ";
      $doc = $doc .  $code{$k} . " loc, ";
      $doc = $doc .  $comment{$k} . " lod\n";
    }
  } 
  print $mn_class . " classes, " . $mn_code . " loc, " . $mn_comment . " lod\n";
  if ($n_cat > 1) {
    print $doc;
  }
  $an_code    += $mn_code;
  $an_comment += $mn_comment;
  $an_class   += $mn_class;
}


print <<EOF

The grand total: $an_class classes, $an_code loc, $an_comment lod

*/
EOF
;