Difference between revisions of "Utf8.charpos"
From GiderosMobile
| Line 6: | Line 6: | ||
(number) = utf8.charpos(s,charpos,offset) | (number) = utf8.charpos(s,charpos,offset) | ||
</source> | </source> | ||
| − | '''s''': (string) | + | === Parameters === |
| + | '''s''': (string) <br/> | ||
'''charpos''': (number) '''optional'''<br/> | '''charpos''': (number) '''optional'''<br/> | ||
'''offset''': (number) '''optional'''<br/> | '''offset''': (number) '''optional'''<br/> | ||
| + | === Return values === | ||
'''Returns''' (number) return byte offset of this UTF-8 char index<br/> | '''Returns''' (number) return byte offset of this UTF-8 char index<br/> | ||
Revision as of 11:44, 23 August 2018
Available since: Gideros 2016.06
Description
convert UTF-8 position to byte offset. if only offset is given, return byte offset of this UTF-8 char index. if charpos and offset is given, a new charpos will calculate, by add/subtract UTF-8 char offset to current charpos. in all case, it return a new char position, and code point (a number) at this position.
(number) = utf8.charpos(s,charpos,offset)
Parameters
s: (string)
charpos: (number) optional
offset: (number) optional
Return values
Returns (number) return byte offset of this UTF-8 char index
