File Coverage

blib/lib/Encode/GSM0338.pm

Criterion	Covered	Total	%
statement	45	47	95.7
branch	33	38	86.8
condition			n/a
subroutine	9	11	81.8
pod	4	4	100.0
total	91	100	91.0

#
# $Id: GSM0338.pm,v 2.7 2017/06/10 17:23:50 dankogai Exp $
#
package Encode::GSM0338;

use strict;
use warnings;
use Carp;

use vars qw($VERSION);
$VERSION = do { my @r = ( q$Revision: 2.7 $ =~ /\d+/g ); sprintf "%d." . "%02d" x $#r, @r };

use Encode qw(:fallbacks);

use parent qw(Encode::Encoding);
__PACKAGE__->Define('gsm0338');

sub needs_lines { 1 }
sub perlio_ok   { 0 }

use utf8;
our %UNI2GSM = (
    "\x{0040}" => "\x00",        # COMMERCIAL AT
    "\x{000A}" => "\x0A",        # LINE FEED
    "\x{000C}" => "\x1B\x0A",    # FORM FEED
    "\x{000D}" => "\x0D",        # CARRIAGE RETURN
    "\x{0020}" => "\x20",        # SPACE
    "\x{0021}" => "\x21",        # EXCLAMATION MARK
    "\x{0022}" => "\x22",        # QUOTATION MARK
    "\x{0023}" => "\x23",        # NUMBER SIGN
    "\x{0024}" => "\x02",        # DOLLAR SIGN
    "\x{0025}" => "\x25",        # PERCENT SIGN
    "\x{0026}" => "\x26",        # AMPERSAND
    "\x{0027}" => "\x27",        # APOSTROPHE
    "\x{0028}" => "\x28",        # LEFT PARENTHESIS
    "\x{0029}" => "\x29",        # RIGHT PARENTHESIS
    "\x{002A}" => "\x2A",        # ASTERISK
    "\x{002B}" => "\x2B",        # PLUS SIGN
    "\x{002C}" => "\x2C",        # COMMA
    "\x{002D}" => "\x2D",        # HYPHEN-MINUS
    "\x{002E}" => "\x2E",        # FULL STOP
    "\x{002F}" => "\x2F",        # SOLIDUS
    "\x{0030}" => "\x30",        # DIGIT ZERO
    "\x{0031}" => "\x31",        # DIGIT ONE
    "\x{0032}" => "\x32",        # DIGIT TWO
    "\x{0033}" => "\x33",        # DIGIT THREE
    "\x{0034}" => "\x34",        # DIGIT FOUR
    "\x{0035}" => "\x35",        # DIGIT FIVE
    "\x{0036}" => "\x36",        # DIGIT SIX
    "\x{0037}" => "\x37",        # DIGIT SEVEN
    "\x{0038}" => "\x38",        # DIGIT EIGHT
    "\x{0039}" => "\x39",        # DIGIT NINE
    "\x{003A}" => "\x3A",        # COLON
    "\x{003B}" => "\x3B",        # SEMICOLON
    "\x{003C}" => "\x3C",        # LESS-THAN SIGN
    "\x{003D}" => "\x3D",        # EQUALS SIGN
    "\x{003E}" => "\x3E",        # GREATER-THAN SIGN
    "\x{003F}" => "\x3F",        # QUESTION MARK
    "\x{0041}" => "\x41",        # LATIN CAPITAL LETTER A
    "\x{0042}" => "\x42",        # LATIN CAPITAL LETTER B
    "\x{0043}" => "\x43",        # LATIN CAPITAL LETTER C
    "\x{0044}" => "\x44",        # LATIN CAPITAL LETTER D
    "\x{0045}" => "\x45",        # LATIN CAPITAL LETTER E
    "\x{0046}" => "\x46",        # LATIN CAPITAL LETTER F
    "\x{0047}" => "\x47",        # LATIN CAPITAL LETTER G
    "\x{0048}" => "\x48",        # LATIN CAPITAL LETTER H
    "\x{0049}" => "\x49",        # LATIN CAPITAL LETTER I
    "\x{004A}" => "\x4A",        # LATIN CAPITAL LETTER J
    "\x{004B}" => "\x4B",        # LATIN CAPITAL LETTER K
    "\x{004C}" => "\x4C",        # LATIN CAPITAL LETTER L
    "\x{004D}" => "\x4D",        # LATIN CAPITAL LETTER M
    "\x{004E}" => "\x4E",        # LATIN CAPITAL LETTER N
    "\x{004F}" => "\x4F",        # LATIN CAPITAL LETTER O
    "\x{0050}" => "\x50",        # LATIN CAPITAL LETTER P
    "\x{0051}" => "\x51",        # LATIN CAPITAL LETTER Q
    "\x{0052}" => "\x52",        # LATIN CAPITAL LETTER R
    "\x{0053}" => "\x53",        # LATIN CAPITAL LETTER S
    "\x{0054}" => "\x54",        # LATIN CAPITAL LETTER T
    "\x{0055}" => "\x55",        # LATIN CAPITAL LETTER U
    "\x{0056}" => "\x56",        # LATIN CAPITAL LETTER V
    "\x{0057}" => "\x57",        # LATIN CAPITAL LETTER W
    "\x{0058}" => "\x58",        # LATIN CAPITAL LETTER X
    "\x{0059}" => "\x59",        # LATIN CAPITAL LETTER Y
    "\x{005A}" => "\x5A",        # LATIN CAPITAL LETTER Z
    "\x{005F}" => "\x11",        # LOW LINE
    "\x{0061}" => "\x61",        # LATIN SMALL LETTER A
    "\x{0062}" => "\x62",        # LATIN SMALL LETTER B
    "\x{0063}" => "\x63",        # LATIN SMALL LETTER C
    "\x{0064}" => "\x64",        # LATIN SMALL LETTER D
    "\x{0065}" => "\x65",        # LATIN SMALL LETTER E
    "\x{0066}" => "\x66",        # LATIN SMALL LETTER F
    "\x{0067}" => "\x67",        # LATIN SMALL LETTER G
    "\x{0068}" => "\x68",        # LATIN SMALL LETTER H
    "\x{0069}" => "\x69",        # LATIN SMALL LETTER I
    "\x{006A}" => "\x6A",        # LATIN SMALL LETTER J
    "\x{006B}" => "\x6B",        # LATIN SMALL LETTER K
    "\x{006C}" => "\x6C",        # LATIN SMALL LETTER L
    "\x{006D}" => "\x6D",        # LATIN SMALL LETTER M
    "\x{006E}" => "\x6E",        # LATIN SMALL LETTER N
    "\x{006F}" => "\x6F",        # LATIN SMALL LETTER O
    "\x{0070}" => "\x70",        # LATIN SMALL LETTER P
    "\x{0071}" => "\x71",        # LATIN SMALL LETTER Q
    "\x{0072}" => "\x72",        # LATIN SMALL LETTER R
    "\x{0073}" => "\x73",        # LATIN SMALL LETTER S
    "\x{0074}" => "\x74",        # LATIN SMALL LETTER T
    "\x{0075}" => "\x75",        # LATIN SMALL LETTER U
    "\x{0076}" => "\x76",        # LATIN SMALL LETTER V
    "\x{0077}" => "\x77",        # LATIN SMALL LETTER W
    "\x{0078}" => "\x78",        # LATIN SMALL LETTER X
    "\x{0079}" => "\x79",        # LATIN SMALL LETTER Y
    "\x{007A}" => "\x7A",        # LATIN SMALL LETTER Z
    "\x{000C}" => "\x1B\x0A",    # FORM FEED
    "\x{005B}" => "\x1B\x3C",    # LEFT SQUARE BRACKET
    "\x{005C}" => "\x1B\x2F",    # REVERSE SOLIDUS
    "\x{005D}" => "\x1B\x3E",    # RIGHT SQUARE BRACKET
    "\x{005E}" => "\x1B\x14",    # CIRCUMFLEX ACCENT
    "\x{007B}" => "\x1B\x28",    # LEFT CURLY BRACKET
    "\x{007C}" => "\x1B\x40",    # VERTICAL LINE
    "\x{007D}" => "\x1B\x29",    # RIGHT CURLY BRACKET
    "\x{007E}" => "\x1B\x3D",    # TILDE
    "\x{00A0}" => "\x1B",        # NO-BREAK SPACE
    "\x{00A1}" => "\x40",        # INVERTED EXCLAMATION MARK
    "\x{00A3}" => "\x01",        # POUND SIGN
    "\x{00A4}" => "\x24",        # CURRENCY SIGN
    "\x{00A5}" => "\x03",        # YEN SIGN
    "\x{00A7}" => "\x5F",        # SECTION SIGN
    "\x{00BF}" => "\x60",        # INVERTED QUESTION MARK
    "\x{00C4}" => "\x5B",        # LATIN CAPITAL LETTER A WITH DIAERESIS
    "\x{00C5}" => "\x0E",        # LATIN CAPITAL LETTER A WITH RING ABOVE
    "\x{00C6}" => "\x1C",        # LATIN CAPITAL LETTER AE
    "\x{00C9}" => "\x1F",        # LATIN CAPITAL LETTER E WITH ACUTE
    "\x{00D1}" => "\x5D",        # LATIN CAPITAL LETTER N WITH TILDE
    "\x{00D6}" => "\x5C",        # LATIN CAPITAL LETTER O WITH DIAERESIS
    "\x{00D8}" => "\x0B",        # LATIN CAPITAL LETTER O WITH STROKE
    "\x{00DC}" => "\x5E",        # LATIN CAPITAL LETTER U WITH DIAERESIS
    "\x{00DF}" => "\x1E",        # LATIN SMALL LETTER SHARP S
    "\x{00E0}" => "\x7F",        # LATIN SMALL LETTER A WITH GRAVE
    "\x{00E4}" => "\x7B",        # LATIN SMALL LETTER A WITH DIAERESIS
    "\x{00E5}" => "\x0F",        # LATIN SMALL LETTER A WITH RING ABOVE
    "\x{00E6}" => "\x1D",        # LATIN SMALL LETTER AE
    #"\x{00E7}" => "\x09",        # LATIN SMALL LETTER C WITH CEDILLA
    "\x{00C7}" => "\x09",        # LATIN CAPITAL LETTER C WITH CEDILLA
    "\x{00E8}" => "\x04",        # LATIN SMALL LETTER E WITH GRAVE
    "\x{00E9}" => "\x05",        # LATIN SMALL LETTER E WITH ACUTE
    "\x{00EC}" => "\x07",        # LATIN SMALL LETTER I WITH GRAVE
    "\x{00F1}" => "\x7D",        # LATIN SMALL LETTER N WITH TILDE
    "\x{00F2}" => "\x08",        # LATIN SMALL LETTER O WITH GRAVE
    "\x{00F6}" => "\x7C",        # LATIN SMALL LETTER O WITH DIAERESIS
    "\x{00F8}" => "\x0C",        # LATIN SMALL LETTER O WITH STROKE
    "\x{00F9}" => "\x06",        # LATIN SMALL LETTER U WITH GRAVE
    "\x{00FC}" => "\x7E",        # LATIN SMALL LETTER U WITH DIAERESIS
    "\x{0393}" => "\x13",        # GREEK CAPITAL LETTER GAMMA
    "\x{0394}" => "\x10",        # GREEK CAPITAL LETTER DELTA
    "\x{0398}" => "\x19",        # GREEK CAPITAL LETTER THETA
    "\x{039B}" => "\x14",        # GREEK CAPITAL LETTER LAMDA
    "\x{039E}" => "\x1A",        # GREEK CAPITAL LETTER XI
    "\x{03A0}" => "\x16",        # GREEK CAPITAL LETTER PI
    "\x{03A3}" => "\x18",        # GREEK CAPITAL LETTER SIGMA
    "\x{03A6}" => "\x12",        # GREEK CAPITAL LETTER PHI
    "\x{03A8}" => "\x17",        # GREEK CAPITAL LETTER PSI
    "\x{03A9}" => "\x15",        # GREEK CAPITAL LETTER OMEGA
    "\x{20AC}" => "\x1B\x65",    # EURO SIGN
);
our %GSM2UNI = reverse %UNI2GSM;
our $ESC    = "\x1b";
our $ATMARK = "\x40";
our $FBCHAR = "\x3F";
our $NBSP   = "\x{00A0}";

#define ERR_DECODE_NOMAP "%s \"\\x%02" UVXf "\" does not map to Unicode"

sub decode ($$;$) {
    my ( $obj, $bytes, $chk ) = @_;
    return undef unless defined $bytes;
    my $str = substr($bytes, 0, 0); # to propagate taintedness;
    while ( length $bytes ) {
        my $c = substr( $bytes, 0, 1, '' );
        my $u;
        if ( $c eq "\x00" ) {
            my $c2 = substr( $bytes, 0, 1, '' );
            $u =
                !length $c2 ? $ATMARK
              : $c2 eq "\x00" ? "\x{0000}"
              : exists $GSM2UNI{$c2} ? $ATMARK . $GSM2UNI{$c2}
              : $chk
              ? croak sprintf( "\\x%02X\\x%02X does not map to Unicode",
			       ord($c), ord($c2) )
              : $ATMARK . $FBCHAR;

        }
        elsif ( $c eq $ESC ) {
            my $c2 = substr( $bytes, 0, 1, '' );
            $u =
                exists $GSM2UNI{ $c . $c2 } ? $GSM2UNI{ $c . $c2 }
              : exists $GSM2UNI{$c2}        ? $NBSP . $GSM2UNI{$c2}
              : $chk
              ? croak sprintf( "\\x%02X\\x%02X does not map to Unicode",
			       ord($c), ord($c2) )
              : $NBSP . $FBCHAR;
        }
        else {
            $u =
              exists $GSM2UNI{$c}
              ? $GSM2UNI{$c}
              : $chk ? ref $chk eq 'CODE'
                  ? $chk->( ord $c )
                  : croak sprintf( "\\x%02X does not map to Unicode", ord($c) )
              : $FBCHAR;
        }
        $str .= $u;
    }
    $_[1] = $bytes if $chk;
    return $str;
}

#define ERR_ENCODE_NOMAP "\"\\x{%04" UVxf "}\" does not map to %s"

sub encode($$;$) {
    my ( $obj, $str, $chk ) = @_;
    return undef unless defined $str;
    my $bytes = substr($str, 0, 0); # to propagate taintedness
    while ( length $str ) {
        my $u = substr( $str, 0, 1, '' );
        my $c;
        $bytes .=
          exists $UNI2GSM{$u}
          ? $UNI2GSM{$u}
          : $chk ? ref $chk eq 'CODE'
              ? $chk->( ord($u) )
              : croak sprintf( "\\x{%04x} does not map to %s",
			       ord($u), $obj->name )
          : $FBCHAR;
    }
    $_[1] = $str if $chk;
    return $bytes;
}

1;
__END__