Difference between revisions of "Utf8.len"
From GiderosMobile
(Created page with "__NOTOC__ '''Available since:''' Gideros 2016.06<br/> === Description === Returns the number of UTF-8 characters in string s that start between positions i and j (both inclusi...") |
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Returns the number of UTF-8 characters in string s that start between positions i and j (both inclusive). The default for i is 1 and for j is -1. If it finds any invalid byte sequence, returns a false value plus the position of the first invalid byte. | Returns the number of UTF-8 characters in string s that start between positions i and j (both inclusive). The default for i is 1 and for j is -1. If it finds any invalid byte sequence, returns a false value plus the position of the first invalid byte. | ||
<source lang="lua"> | <source lang="lua"> | ||
| − | (number) | + | (number) = utf8.len(s,i,j) |
</source> | </source> | ||
| − | '''s | + | '''s''': (string) ''''''<br/> |
| − | '''i | + | '''i''': (number) '''optional'''<br/> |
| − | '''j | + | '''j''': (number) '''optional'''<br/> |
'''Returns''' (number) number of characters<br/> | '''Returns''' (number) number of characters<br/> | ||
Revision as of 10:16, 23 August 2018
Available since: Gideros 2016.06
Description
Returns the number of UTF-8 characters in string s that start between positions i and j (both inclusive). The default for i is 1 and for j is -1. If it finds any invalid byte sequence, returns a false value plus the position of the first invalid byte.
(number) = utf8.len(s,i,j)
's: (string) '
i: (number) optional
j: (number) optional
Returns (number) number of characters
