LlChar

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/LSL

Char

llChar

Summary

Function: string llChar( integer val );

0.0	Forced Delay
10.0	Energy

Construct a single character string from the supplied Unicode value.
Returns a string

• integer

val

–

Unicode value for character.

This function returns a single character string generated from the character at the indicated UTF-32 codepoint.
If val is negative, the codepoint has no valid single-character UTF-16 representation such as a part of a surrogate pair, or is outside defined range, the Unicode replacement character "�" (0xFFFD) is returned.
If val is 0, an empty string is returned.

Caveats

• Value range is between 0x1–0x10FFFF
• Values in the surrogate range 0xD800–0xDFFF will return the replacement character "�" (0xFFFD) instead
• Values for the special noncharacters 0xFFFE and 0xFFFF will return the replacement character instead
• SLua's equivilant utf8.char has none of the above caveats, and also handles 0 (the null character) correctly
• Values for UTF-8 multibyte ranges are:
  • 1 byte: 0x1–0x7F
  • 2 bytes: 0x80–0x07FF
  • 3 bytes: 0x0800–0xFFFF
  • 4 bytes: 0x10000–0x10FFFF

Examples

default
{
    touch_start(integer total_number)
    {
        string test_string = "The quick brown fox jumped over the lazy dog";
        list test_list = [];
        string test_string2 = "";
        
        integer index;
        integer ord;
        for (index = 0; index < llStringLength(test_string); ++index)
        {
            ord = llOrd(test_string, index);
            test_list = test_list + [ ord ];
        }
        
        string char;
        for (index = 0; index < llGetListLength(test_list); ++index)
        {
            ord = llList2Integer(test_list, index);
            char = llChar(ord);
            test_string2 = test_string2 + char;
        }
        
        llSay(0, "\"" + test_string + "\" -> [" + 
            llDumpList2String(test_list, ", ") + "] -> \"" + test_string2 + "\"");
    }
}

See Also

Functions

• llOrd	Convert a character into an ordinal
• llHash	Calculate a 32bit hash for a string

Articles

•

UTF-32

Deep Notes

Signature
function string llChar( integer val );