Difference between revisions of "Utf8.charpos"
From GiderosMobile
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__NOTOC__ | __NOTOC__ | ||
'''<translate>Available since</translate>:''' Gideros 2016.06<br/> | '''<translate>Available since</translate>:''' Gideros 2016.06<br/> | ||
| + | '''<translate>Class</translate>:''' [[Special:MyLanguage/utf8|utf8]]<br/> | ||
=== <translate>Description</translate> === | === <translate>Description</translate> === | ||
<translate>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.</translate> | <translate>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.</translate> | ||
Revision as of 10:28, 24 August 2018
Available since: Gideros 2016.06
Class: utf8
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
