Difference between revisions of "LlStringLength"

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(*To quickly find out the number of bytes (in UTF-8), you can use llStringToBase64 (see also snippet there))
 
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|func_footnote
|func_footnote
|func_desc
|func_desc
|return_text=that is the number of characters in '''str''' (not counting the null).
|return_text=that is the number of characters in '''str'''.
|spec
|spec
|caveats=
|caveats=
*The index of the last character is not equal to the string length.
*The index of the last character is not equal to the string length.
**Character indexs start at zero (the index of the first character is zero).
**Character indexs start at zero (the index of the first character is zero).
*llStringLength() gets the number of characters, not bytes
**LSL-2 sees all strings as UTF-8
**LSL-Mono sees all string as UTF-16
**Both UTF-8 and UTF-16 use multibyte characters
*Some communication functions (e.g. llHTTPResponse) are limited by number of Bytes, and work with UTF-8 strings
**To quickly find out the number of bytes (in UTF-8), you can use [[llStringToBase64]] (see also snippet there)
|constants
|constants
|examples=
|examples=
<lsl>
<source lang="lsl2">
// assumptions:  
// assumptions:  
//    object name: LSLWiki
//    object name: LSLWiki
Line 28: Line 34:
}
}


</lsl>
</source>
<hr>
 
*LSL-2 sees all strings as UTF8
*LSL-Mono sees all string as UTF16
*llStringLength gets the number of characters
*Both UTF8 and UTF16 use multibyte characters
*Some communication functions (i.e. llHTTPResponse) are limited by number of Bytes, and work with UTF8 strings
<lsl>
integer UTF8Length(string msg)
{
//Returns the number of BYTES a string will have when converted to UTF8 by communication functions
//Simple and efficient!
//Released to the public domain by kimmie Loveless
    integer rNum = llStringLength(msg);
    return rNum + ((llStringLength(llEscapeURL(msg)) - rNum)/4);
}
</lsl>
|helpers
|helpers
|also_functions={{LSL DefineRow||[[llGetListLength]]|}}
|also_functions={{LSL DefineRow||[[llGetListLength]]|}}

Latest revision as of 06:13, 24 January 2024

Summary

Function: integer llStringLength( string str );

Returns an integer that is the number of characters in str.

• string str

Caveats

  • The index of the last character is not equal to the string length.
    • Character indexs start at zero (the index of the first character is zero).
  • llStringLength() gets the number of characters, not bytes
    • LSL-2 sees all strings as UTF-8
    • LSL-Mono sees all string as UTF-16
    • Both UTF-8 and UTF-16 use multibyte characters
  • Some communication functions (e.g. llHTTPResponse) are limited by number of Bytes, and work with UTF-8 strings
    • To quickly find out the number of bytes (in UTF-8), you can use llStringToBase64 (see also snippet there)
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Examples

// assumptions: 
//    object name: LSLWiki
//    script name: _lslwiki

default
{
    state_entry()
    {
        string HowLongAmI = "123";
        integer strlen = llStringLength(HowLongAmI);
        llOwnerSay( "'" + HowLongAmI + "' has " +(string) strlen + " characters.");
        // The owner of object LSLWiki will hear 
        // LSLWiki: '123' has 3 characters.
    }
}

See Also

Functions

•  llGetListLength

Deep Notes

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Signature

function integer llStringLength( string str );
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