模板:Valid
Purpose
Determines whether something is valid in a certain context. Currently only implemented for determining if a number is within the precision that wikipedia expressions can handle.
Returns
true if the argument is valid, false if it is not.
Examples
{{valid|number=A}}
= (not a number){{valid|number=1234}}
={{valid|number=+1234}}
={{valid|number=-1234}}
={{valid|number=(1234)}}
= (one pair of parenthesis is allowed){{valid|number=--1234}}
= (incorrect sign use){{valid|number=1234567890}}
={{valid|number=12345678901234567890}}
= (too large){{valid|number=1.234567890}}
={{valid|number=1.2345678901234567890}}
= (too many decimals)