NAME

cyrillic - Library for fast and easy cyrillic text manipulation

SYNOPSIS

use cyrillic qw/866 win2dos convert locase upcase detect/;

print convert( 866, 1251, $str );
print convert( 'dos','win', \$str );
print win2dos $str;

DESCRIPTION

This module includes cyrillic string converting functions from one and to another charset, to upper and to lower case without locale switching. Also included single-byte charsets detection routine. It is easy to add new code pages. For this purpose it is necessary only to add appropriate string of a code page.

Supported charsets: ibm866, koi8-r, cp855, windows-1251, MacWindows, iso_8859-5, unicode, utf8;

If the first imported parameter - number of a code page, then locale will be switched to it.

FUNCTIONS

• convert - between charsets convertor

• upcase - convert to upper case

• locase - convert to lower case

• upfirst - convert first char to upper case

• lofirst - convert first char to lower case

• detect - detect codepage number

• charset - returns charset name for codepage number

At importing list also might be listed named convertors. For Ex.:

use cyrillic qw/dos2win win2koi mac2dos ibm2dos/;

NOTE! Specialisations (like win2dos, utf2win) call faster then convert.

NOTE! Only convert function and they specialisation work with Unicode and UTF-8 strings. All others function work only with single-byte sharsets.

Names for using in named charset convertors:

dos ibm866       866
koi koi8-r       20866
ibm cp855        855
win windows-1251 1251
mac ms-cyrillic  10007
iso iso_8859-5   28585
uni Unicode
utf UTF-8

The following rules are correct for converting functions:

VAR may be SCALAR or REF to SCALAR.
If VAR is REF to SCALAR then SCALAR will be converted.
If VAR is ommited then $_ operated.
If function called to void context and VAR is not REF
then result placed to $_.

CONVERSION METHODS

convert SRC_CP, DST_CP, [VAR]

Convert VAR from SRC_CP codepage to DST_CP codepage and returns converted string.

The converting Unicode or UTF-8 data requires presence of installed Unicode::String and Unicode::Map.

upcase CODEPAGE, [VAR]

Convert VAR to uppercase using CODEPAGE table and returns converted string.

locase CODEPAGE, [VAR]

Convert VAR to lowercase using CODEPAGE table and returns converted string.

upfirst CODEPAGE, [VAR]

Convert first char of VAR to uppercase using CODEPAGE table and returns converted string.

lofirst CODEPAGE, [VAR]

Convert first char of VAR to lowercase using CODEPAGE table and returns converted string.

MAINTAINANCE METHODS

charset CODEPAGE

Returns charset name for CODEPAGE.

detect ARRAY

Detect single-byte codepage of data in ARRAY and returns codepage number. If codepage not detected then returns undefined value;

EXAMPLES

use cyrillic qw/convert locase upcase detect dos2win win2dos/;

$_ = "\x8F\xE0\xA8\xA2\xA5\xE2 \xF0\xA6\x88\xAA\x88!";

printf "    dos: '%s'\n", $_;
upcase 866; 
printf " upcase: '%s'\n", $_;
dos2win;
printf "dos2win: '%s'\n", $_;
win2dos;
printf "win2dos: '%s'\n", $_;
locase 866;
printf " locase: '%s'\n", $_;
printf " detect: '%s'\n", detect $_;


# CONVERTING TEST:

use cyrillic qw/utf2dos mac2utf dos2mac win2dos utf2win/;

$_ = "Хелло Ворльд!\n";

print "UTF-8: $_";
print "  DOS: ", utf2dos mac2utf dos2mac win2dos utf2win $_;


# EQVIVALENT CALLS:

dos2win( $str );        # called to void context -> result placed to $_
$_ = dos2win( $str );

dos2win( \$str );       # called with REF to string -> direct converting
$str = dos2win( $str );

dos2win();              # with ommited param called -> $_ converted
dos2win( \$_ );
$_ = dos2win( $_ );


# FOR EASY SWITCH LOCALE CODEPAGE

use cyrillic qw/866/;   # locale switched to Russian_Russia.866

use locale;
print $str =~ /(\w+)/;

no locale;
print $str =~ /(\w+)/;

FAQ

* Q: Why module say: Can't create Unicode::Map for 'koi8-r' charset!
  A: Your Unicode::Map module can't find map file for 'koi8-r' charset.
     In Unicode::Map manual is told whence it is possible to download
     this file and as it to install in the system.

* Q: Why perl say: "Undefined subroutine koi2win called" ?
  A: The function B<koi2win> is specialization of the function B<convert>,
     which is created at inclusion it of the name in the list of import.

AUTHOR

Albert MICHEEV <Albert@f80.n5049.z2.fidonet.org>

COPYRIGHT

Copyright (C) 2000, Albert MICHEEV

This module is free software; you can redistribute it or modify it under the same terms as Perl itself.

AVAILABILITY

The latest version of this library is likely to be available from:

http://www.perl.com/CPAN

SEE ALSO

Unicode::String, Unicode::Map.

cpanm cyrillic

perl -MCPAN -e shell
install cyrillic