#!/usr/bin/perl
#=======================================================================
# Copyright (c) 2000 Daniele Giacomini daniele@swlibero.org
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#=======================================================================
# ALdoc2Alml < ALTOOLS_SOURCE > ALML_SOURCE
#
# Partial translator from ALdoc to Alml.
#=======================================================================

# Record letto.
$riga = "";


# Salta blocco.
sub SaltaBlocco
{
    local ($conclusione) = $_[0];

    # Cerca di saltare il blocco.
    while ($riga !~ m|$conclusione|i)
      {
	# Trasferisce il record letto, e legge il successivo.
	print STDOUT "$riga";
	$riga = <STDIN>;
      }

    # Trasferisce anche l'ultimo record letto.
    print STDOUT "$riga";
}    


sub ElaboraBloccoFigura
{

    local $didascalia = "";
    local $id = "";
    local $inizio = $riga;
    local $figura = "";

    $riga = <STDIN>;
    print STDERR $riga; #!!!!!!!!!!!

    while ( $riga !~ m|</figure>|i )
      {
        if ($riga =~ m|<didascalia>||i)
	  {
	    while ( $riga !~ m|</didascalia>|i )
	      {
	          $riga =~ s|<didascalia>||i;
		  if ($riga =~ m|<etichetta id="(.*?)">|i)
		    {
		      $id = $1;
	    	    }
		  $riga =~ s|<etichetta id=".*?">|Figura <figureref>. |i;
		  $didascalia = $didascalia . $riga;
		  $riga = <STDIN>;
		  print STDERR $riga; #!!!!!!!!!!!
	      }
	    $riga =~ s|</didascalia>||i;
	    $didascalia = $didascalia . $riga;
	    $riga = <STDIN>;
	    print STDERR $riga; #!!!!!!!!!!!
	  }
	else
	  {
    	    $figura = $figura . $riga;
            $riga = <STDIN>;
	    print STDERR $riga; #!!!!!!!!!!!
	  }
      }
    $figura = $figura . $riga;
    $riga = <STDIN>;
    print STDERR $riga; #!!!!!!!!!!!


    $inizio =~ s/<(figure.*)>/<$1 id=\"$id\">/i;

    print STDOUT $inizio;
    print STDOUT "<fcaption>";
    print STDOUT $didascalia;
    print STDOUT "</fcaption>\n";
    print STDOUT $figura;
    print STDOUT "\n";
}    

# Inizio del programma.

# Scandisce le righe.
while ($riga = <STDIN>)
  {
    # Se si incontra un commento deve essere saltato.
    if ($riga =~ m|<!--|)
      {
	&SaltaBlocco( "-->" );
      }
    elsif ($riga =~ m|<testopreformattato>|i)
      {
	&SaltaBlocco( "</testopreformattato>" );
      }
    elsif ($riga =~ m|<figuratestopreformattato>|i)
      {
	&SaltaBlocco( "</figuratestopreformattato>" );
      }
    elsif ($riga =~ m|<sintassitestopreformattato>|i)
      {
	&SaltaBlocco( "</sintassitestopreformattato>" );
      }
    elsif ($riga =~ m/^<figure/)
      {
	    &ElaboraBloccoFigura ();
      }
    else
      {
        print STDOUT ("$riga");
      }
  }

#======================================================================

