Difference between revisions of "Utf8.next"
From GiderosMobile
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if only charpos is given, return the next byte offset of in string. 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 (in bytes), and code point (a number) at this position.</translate> | if only charpos is given, return the next byte offset of in string. 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 (in bytes), and code point (a number) at this position.</translate> | ||
| − | < | + | <syntaxhighlight lang="lua"> |
(varies) = utf8.next(s,charpos,offset) | (varies) = utf8.next(s,charpos,offset) | ||
</source> | </source> | ||
Revision as of 15:32, 13 July 2023
Available since: Gideros 2016.06
Class: utf8
Description
Iterate though the UTF-8 string s. If only s is given, it can used as a iterator: for pos, code in utf8.next, "utf8-string" do -- ... end if only charpos is given, return the next byte offset of in string. 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 (in bytes), and code point (a number) at this position. <syntaxhighlight lang="lua"> (varies) = utf8.next(s,charpos,offset) </source>
Parameters
s: (string)
charpos: (number) optional
offset: (number) optional
Return values
Returns (varies) next iteration
