Difference between revisions of "Utf8.width"
From GiderosMobile
(Created page with "__NOTOC__ '''Available since:''' Gideros 2016.06<br/> === Description === calculate the width of UTF-8 string s. if ambi_is_double is given, the ambiguous width character's wi...") |
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calculate the width of UTF-8 string s. if ambi_is_double is given, the ambiguous width character's width is 2, otherwise it's 1. fullwidth/doublewidth character's width is 2, and other character's width is 1. if default_width is given, it will be the width of unprintable character, used display a non-character mark for these characters. if s is a code point, return the width of this code point. | calculate the width of UTF-8 string s. if ambi_is_double is given, the ambiguous width character's width is 2, otherwise it's 1. fullwidth/doublewidth character's width is 2, and other character's width is 1. if default_width is given, it will be the width of unprintable character, used display a non-character mark for these characters. if s is a code point, return the width of this code point. | ||
<source lang="lua"> | <source lang="lua"> | ||
| − | (number) | + | (number) = utf8.width(s,ambi_is_double,default_width) |
</source> | </source> | ||
| − | '''s | + | '''s''': (string) ''''''<br/> |
| − | '''ambi_is_double | + | '''ambi_is_double''': (boolean) '''optional'''<br/> |
| − | '''default_width | + | '''default_width''': (number) '''optional'''<br/> |
'''Returns''' (number) width<br/> | '''Returns''' (number) width<br/> | ||
Revision as of 10:21, 23 August 2018
Available since: Gideros 2016.06
Description
calculate the width of UTF-8 string s. if ambi_is_double is given, the ambiguous width character's width is 2, otherwise it's 1. fullwidth/doublewidth character's width is 2, and other character's width is 1. if default_width is given, it will be the width of unprintable character, used display a non-character mark for these characters. if s is a code point, return the width of this code point.
(number) = utf8.width(s,ambi_is_double,default_width)
's: (string) '
ambi_is_double: (boolean) optional
default_width: (number) optional
Returns (number) width
