Ашаблон:Yesno
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{{Yesno}} (or {{YesNo}}) evaluates any input and produces a normalized yes or nil output, based on the content of the input and several configurable options. It is not used in article prose, but in coding complex templates.
Usage
[акод аредакциазура]The template distinguishes five different types of input, supplied on the first unnamed parameter:
- Yes: Case-insensitive forms of
Yes,y,true,on, and1; e.g.{{Yesno|yEs}}→ ааи - No: Case-insensitive forms of
No,n,false,off, and0; e.g.{{Yesno|nO}}→ - Nothing: When the input is defined but either contains no value or consists of whitespace character only; i.e.
{{Yesno|}}or{{Yesno| }}→ - Negation: When the input is either
¬(alt code 170) or entirely missing; i.e.{{Yesno|¬}}or{{Yesno}}→ - Anything else: e.g.
{{Yesno|Purple monkey dish washer}}→ ааи
By default, the template returns "yes" in the first and last case but returns nil (blank, empty string) in the other cases.
Two short-hand templates for the most common uses that override the default behavior:
{{yesno-yes}}or{{YesNo-Yes}}– always returns "yes" (or the specified replacement result in|yes=) unless an explicit negative value is given; i.e., it evaluates to "yes" even when the value is empty or missing.{{yesno-no}}or{{YesNo-No}}– always returns "no" (or the specified replacement result in|no=) unless an explicit positive value is given; i.e., it evaluates to "no" even when the value is present, as long as it does not contain anything that resolves to "yes".