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Current File : //proc/thread-self/root/usr/local/bin/mkmapfile
#!/usr/local/bin/perl

eval 'exec /usr/local/bin/perl  -S $0 ${1+"$@"}'
    if 0; # not running under some shell
#$Id: mkmapfile,v 1.23 1998/02/17 18:04:26 schwartz Exp $
#
# mkmapfile - create character mapfile for Unicode::Map library
#
# See also usage() of this file.
#
# Copyright (C) 1998 Martin Schwartz. All rights reserved.
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
#
# Contact: Martin Schwartz <martin@nacho.de>
#

my $PROGNAME = "mkmapfile";
my $VERSION = '1.24';
my $DATE = '2000-Jun-26';

use Getopt::Std;
use Unicode::Map;

my $Map;
my $numErrors = 0;
my $numWarnings = 0;

main: {
   $|=1;
   $Map = new Unicode::Map ( );
   if ( !$Map ) {
      print "Can't get Unicode::Map object!\n";
      exit 1;
   }

   getopts ('fhM:oS:U');

   usage() if $opt_h;

   if ($opt_U) {
      usage() if $opt_S;
      for ($Map->ids) {
         $numErrors++ unless _convert (
            $_, $Map->src($_), $Map->mapping($_), $Map->style($_)
         );
      }
      finish ( );
   }
   usage() if !@ARGV;

   for ( @ARGV ) {
       $numErrors++ unless handle_file ( $_ );
   }

   finish ( );
}

sub finish {
    if ( $numWarnings==0 && $numErrors==0 ) {
        print "Ok. Everything went fine!\n";
    } elsif ( $numErrors>0 ) {
        my $msg;
        $msg = "$numErrors error";
        $msg .= "s" if $numErrors>1;
        $msg .= ", $numWarnings warning" if $numWarnings>0;
        $msg .= "s" if $numWarnings>1;
        $msg .= ".";
        print "Error! Encountered $msg\n";
    } else {
        my $msg;
        $msg = "$numWarnings warning";
        $msg .= "s" if $numWarnings>1;
        $msg .= ".";
        print "Warning! Possible trouble! $msg\n";
    }
    exit $numErrors;
}

sub handle_file {
   my ( $path ) = @_;
   my $baseName = basename ( $path );
   my $basePath = basepath ( $path );
   my $csid = $Map -> id ( $baseName ) || "GENERIC";
   my $outfile = $opt_M || $basePath . $baseName . ".map";
   _convert ( $csid, "$path", "$outfile", $opt_S );
}

sub _convert {
   my ($id, $from, $to, $style) = @_;
   print "Processing $id: ";
   if (!-f $from) {
      print ("Text mapfile '$from' not available.\n");
      return 0;
   }

   if (!$opt_f) {
      if ( (stat($from))[9] <= (stat($to))[9] ) {
         my $s = "Mapping ";
         $s .= "\"$to\" " if $id=~/^generic$/i;
         $s .= "'$to' seems uptodate.";
         print "$s\n";
         return 1;
      }
   }

   if (!$opt_o && -e $to) { 
     $numWarnings++;
     print "Binary mapfile \"$to\" exists! Skipping. (Use -o to override)\n";
     return 1;
   }

   if ( 
      !_mkpath(basepath($to))
      || !$Map -> read_text_mapping ($id, $from, $style)
      || !$Map -> write_binary_mapping ($id, $to)
   ) {
      print "Error for '$to': $!!\n";
      return 0;
   }
   print "saved binary mapping as '$to'.\n";
1}

sub usage {
   print 
      "$PROGNAME V$VERSION ($DATE) - create Unicode mapfiles\n"
      ."usage: $PROGNAME [-M mapfile.map] -U unicode.TXT \n"
      ."-M s  Mapfile output. Write created mapping to this file.\n"
      ."-f    force. Write new mapfiles even when they seem to be update.\n"
      ."-o    overwrite. Existing files will be overwritten.\n"
      ."-S s  Style. Textual input mapping is of style 'unicode' or 'keld'\n"
      ."-U    Update mode. Update mapfiles according to REGISTRY file\n"
   ;
   exit 0;
}

sub basepath { substr($_[0], 0, rindex($_[0],'/')+1) }
sub basename { (substr($_[0], rindex($_[0],'/')+1) =~ /(^[^.]*)/) && $1; }

sub _mkpath {
#
# Creates one or a chain of directories
#
   my ($path) = @_;
   my $current = "";
   for ( split /\//, $path ) {
      $current .= "$_/";
      next if -d $current;
      if (!mkdir $current, 0777) {
         print "Cannot create directory \"$current\"!\n";
      }
   }
1}

__END__

=head1 NAME

mkmapfile - create Unicode mapfiles 

Very Alpha.

=head1 SYNOPSIS

Example:

 mkmapfile -M ./GB2312-80.map ~/Unicode/MAPPINGS/EASTASIA/GB/GB2312.TXT

 See "mkmapfile -h" for details.

=head1 DESCRIPTION

Creates the binary mapfiles that module Unicode::Map uses for converting
from and to unicode character sets.

=head1 SEE ALSO

L<Unicode::Map>

=head1 AUTHOR

Martin Schwartz E<lt>F<martin@nacho.de>E<gt>. 

=cut
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