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91 lines
1.9 KiB
91 lines
1.9 KiB
#---------------------------------------------------------------------
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package UnicodeCheck;
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#
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# Copyright (c) Microsoft Corporation. All rights reserved.
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#
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# Version: 1.00 (05/15/2001) : (MikeR) Helper functions for Unicode checks
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#---------------------------------------------------------------------
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use strict;
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use vars qw(@ISA @EXPORT $VERSION);
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use Carp;
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use Exporter;
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use lib $ENV{ "RazzleToolPath" };
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use lib $ENV{ "RazzleToolPath" } . "\\PostBuildScripts";
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use Logmsg;
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@ISA = qw(Exporter);
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@EXPORT = qw(IsFileUnicode);
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$VERSION = '1.00';
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sub IsFileUnicode( $ )
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{
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my $ThisFile = shift;
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my $ReturnCode = 0;
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if ( open( THISFILE, $ThisFile ) )
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{
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my $FirstLine;
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$FirstLine = <THISFILE>;
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if ((ord(substr($FirstLine,0,1))==255) && (ord(substr($FirstLine,1,1))==254))
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{
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logmsg( "Unicode signature is valid for file '$ThisFile'." );
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$ReturnCode = 1;
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}
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else
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{
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errmsg( "Unicode signature is invalid for '$ThisFile'!" );
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$ReturnCode = 0;
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}
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# Close the file...
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close( THISFILE );
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}
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else
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{
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# Cannot find file...
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errmsg( "Cannot open file to verify Unicode signature - '$ThisFile'!" );
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$ReturnCode = 0;
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}
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return $ReturnCode;
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}
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1;
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__END__
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=head1 NAME
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UnicodeCheck - Helper functions to check Unicode cycles
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=head1 SYNOPSIS
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Call IsFileUnicode() with a full path to a file to determine if it's Unicode or not.
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Details and errors are logged using errmsg and logmsg. Return code is 1 if the file
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is Unicode (that is, it has the FFFE Unicode header), 0 otherwise.
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=head1 DESCRIPTION
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Used to help detect if files are Unicode or not.
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=head1 AUTHOR
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MikeR
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=head1 COPYRIGHT
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Copyright (c) Microsoft Corporation. All rights reserved.
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=cut
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