Difference between revisions of "Utf8.sub"
From GiderosMobile
| Line 7: | Line 7: | ||
(string) = utf8.sub(s,i,j) | (string) = utf8.sub(s,i,j) | ||
</source> | </source> | ||
| − | '''s''': (string) | + | === Parameters === |
| − | '''i''': (number) | + | '''s''': (string) <br/> |
| + | '''i''': (number) <br/> | ||
'''j''': (number) '''optional'''<br/> | '''j''': (number) '''optional'''<br/> | ||
| + | === Return values === | ||
'''Returns''' (string) substring of s that starts at i and continues until j<br/> | '''Returns''' (string) substring of s that starts at i and continues until j<br/> | ||
Revision as of 10:45, 23 August 2018
Available since: Gideros 2016.06
Description
Returns the substring of s that starts at i and continues until j; i and j can be negative. If j is absent, then it is assumed to be equal to -1 (which is the same as the string length). In particular, the call string.sub(s,1,j) returns a prefix of s with length j, and string.sub(s, -i) returns a suffix of s with length i. If, after the translation of negative indices, i is less than 1, it is corrected to 1. If j is greater than the string length, it is corrected to that length. If, after these corrections, i is greater than j, the function returns the empty string.
(string) = utf8.sub(s,i,j)
Parameters
s: (string)
i: (number)
j: (number) optional
Return values
Returns (string) substring of s that starts at i and continues until j
