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A set of typefaces that cover the whole Unicode character range


A set of typefaces that cover the whole Unicode character range

By : Anthony So Loyal
Date : October 18 2020, 11:12 AM
this one helps. One way to find such set of fonts is to look into Windows Font Linking. If you take a look at the registry key HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\FontLink\SystemLink you'll see fonts that "link" to cover the complete Unicode set.
code :


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Anomalous behavior while comparing a unicode character to a unicode character range

Anomalous behavior while comparing a unicode character to a unicode character range


By : MN Alam
Date : March 29 2020, 07:55 AM
I hope this helps you . ACTION: I've submitted this behavior as bug #6258 to ruby-lang.
There's something odd about the collation order in that range of characters
code :
irb(main):081:0> r.to_a.last.ord.to_s(16)
=> "1036"
irb(main):082:0> r.to_a.last.succ.ord.to_s(16)
=> "1000"
irb(main):083:0> r.min.ord.to_s(16)
=> "1000"
irb(main):084:0> r.max.ord.to_s(16)
=> "1200"
r = (a.ord..b.ord)
r === x.ord
r === y.ord
How do I convert a unicode code point range into an NSString character range?

How do I convert a unicode code point range into an NSString character range?


By : Matt Yang
Date : March 29 2020, 07:55 AM
Any of those help What you have is kind of mixed data from two different worlds. You might typically get a Unicode code point range along with a UTF-32 string (where the correspondence is one-to-one) so that extracting the substring would be trivial. You have two options:
Work in the UTF-32 world before you put the data into an NSString Convert the Unicode code point range into a UTF-16 unit range
code :
for each NSString character {
    if (CFStringIsSurrogateHighCharacter(character) ||
        CFStringIsSurrogateLowCharacter(character))
    {
        Skip forward another character in the NSString
    }
    Increment count of Unicode code points stepped through
}
Detect Unicode Character Range in PHP

Detect Unicode Character Range in PHP


By : Hoàng Long
Date : March 29 2020, 07:55 AM
it should still fix some issue I've worked on something. This will detect the range of each character. I've only put Armenian, Latin and Russian in to start with. If anyone else has need for this, you'll need to find the character ranges to the detectRanges function from a source like: http://jrgraphix.net/r/Unicode/ I'd like to see if there is a better way of doing that part. Make sure any alphabetic character in the ranges are lower case.
code :
mb_internal_encoding("UTF-8");
echo header( "Content-Type: text/html;charset=UTF-8", true );

class DetectUnicodeRanges
{
    function entityToUTF8( $number )
    {
        if( $number < 0 )
                return false;

        # Replace ASCII characters
        if( $number < 128 )
                return chr( $number );

        # Replace illegal Windows characters
        if( $number < 160 )
        {
            switch( $number )
            {
                case 128: $conversion = 8364; break;
                case 129: $conversion = 160; break;
                case 130: $conversion = 8218; break;
                case 131: $conversion = 402; break;
                case 132: $conversion = 8222; break;
                case 133: $conversion = 8230; break;
                case 134: $conversion = 8224; break;
                case 135: $conversion = 8225; break;
                case 136: $conversion = 710; break;
                case 137: $conversion = 8240; break;
                case 138: $conversion = 352; break;
                case 139: $conversion = 8249; break;
                case 140: $conversion = 338; break;
                case 141: $conversion = 160; break;
                case 142: $conversion = 381; break;
                case 143: $conversion = 160; break;
                case 144: $conversion = 160; break;
                case 145: $conversion = 8216; break;
                case 146: $conversion = 8217; break;
                case 147: $conversion = 8220; break;
                case 148: $conversion = 8221; break;
                case 149: $conversion = 8226; break;
                case 150: $conversion = 8211; break;
                case 151: $conversion = 8212; break;
                case 152: $conversion = 732; break;
                case 153: $conversion = 8482; break;
                case 154: $conversion = 353; break;
                case 155: $conversion = 8250; break;
                case 156: $conversion = 339; break;
                case 157: $conversion = 160; break;
                case 158: $conversion = 382; break;
                case 159: $conversion = 376; break;
            }

            return $conversion;
        }

        if ( $number < 2048 )
                return chr( ($number >> 6 ) + 192 ) . chr( ( $number & 63 ) + 128 );
        if ( $number < 65536 )
                return chr( ( $number >> 12 ) + 224 ) . chr( ( ( $number >> 6 ) & 63 ) + 128 ) . chr( ( $number & 63 ) + 128 );
        if ( $number < 2097152 )
                return chr( ( $number >> 18 ) + 240 ) . chr( ( ( $number >> 12 ) & 63 ) + 128 ) . chr( ( ( $number >> 6 ) & 63 ) + 128 ) . chr( ( $number & 63 ) + 128 );

        return false;
    }

    function MBStrToHexes( $str )
    {        
        $str = mb_convert_encoding( $str, 'UCS-4BE' );
        $hexs = array();
        for( $i = 0; $i < mb_strlen( $str, 'UCS-4BE' ); $i++ )
        {        
            $s2 = mb_substr( $str, $i, 1, 'UCS-4BE' );                    
            $val = unpack( 'N', $s2 );
            $hexs[] = str_pad( dechex( $val[1] ), 4, 0, STR_PAD_LEFT );                
        }        
        return( $hexs );
    }

    function detectRanges( $str )
    {
        $hexes = $this->MBStrToHexes( $str );
        foreach( $hexes as $hex )
        {
            if( ( $hex >= '0041' ) && ( $hex <= '024f' ) )
                echo $this->entityToUTF8( hexdec($hex) ) . ' - Latin<br />';
            elseif( ( $hex >= '0400' ) && ( $hex <= '04ff' ) )
                echo $this->entityToUTF8( hexdec($hex) ) . ' - Cyrillic<br />';
            elseif( ( $hex >= '0530' ) && ( $hex <= '058f' ) )
                echo $this->entityToUTF8( hexdec($hex) ) . ' - Armenian<br />';
            else
                echo $this->entityToUTF8( $hex ) . ' - Some Other Range<br />';
        }
    }

}

#$strB = 'Cornelius Trow';
$strB = 'Cornelius Српски Հայաստանի';
#$strB = 'Հայաստանի Հանրապետություն';
echo 'Testing String: ' . $strB . '<br />';
$dur = new DetectUnicodeRanges();
$dur->detectRanges( $strB );
How to skip reserved unicode characters in a auto generated unicode character range in perl?

How to skip reserved unicode characters in a auto generated unicode character range in perl?


By : Sahngju Lee
Date : March 29 2020, 07:55 AM
Any of those help You want to print only visible characters.see here
code :
next unless ($char=~/[[:print:]]/);
Why C# Unicode range cover limited range (up to 0xFFFF)?

Why C# Unicode range cover limited range (up to 0xFFFF)?


By : jingyunChan
Date : March 29 2020, 07:55 AM
Hope that helps
According to C# reference, the accepted ranges for each char is 0x0000 to 0xFFFF. I don't understand what about the other character, which above 0xFFFF, and defined in Unicode protocol?
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