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Created page with "{{wikipedia|page name}} {{high-use}} {{Documentation subpage}} {{lua|Module:String}} <!-- PLEASE ADD CATEGORIES AND INTERWIKIS AT THE BOTTOM OF THIS PAGE --> This is the {{tl|str ≠ len}} meta-template. It helps other templates check if a string is "not equal" vs. "equal" to a given length. '''Note!''' For most usage cases it might be better to use {{tl|str ≥ len}}. (See the see also section below.) === Usage === This template takes 3 to 4 unnamed p..." |
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It helps other templates check if a string is "not equal" vs. "equal" to a given length. | It helps other templates check if a string is "not equal" vs. "equal" to a given length. | ||
'''Note!''' For most usage cases it might be better to use {{tl|str ≥ len}}. (See the | '''Note!''' For most usage cases it might be better to use {{tl|str ≥ len}}. (See the see also section below.) | ||
=== Usage === | === Usage === | ||
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This template would be equivalent to templates named <nowiki>{{str != len}} or {{str == len}}</nowiki>, but we can't use those template names since they don't work well in MediaWiki. | This template would be equivalent to templates named <nowiki>{{str != len}} or {{str == len}}</nowiki>, but we can't use those template names since they don't work well in MediaWiki. | ||
Templates have problems to handle parameter data that contains pipes "<code>|</code>", unless the pipe is inside another template <code><nowiki>{{name|param1}}</nowiki></code> or inside a piped link <code><nowiki>[[Help:Template|help]]</nowiki></code>. Thus templates can not handle wikitables as input unless you escape them by using the template. This makes it hard to use wikitables as parameters to templates. Instead the usual solution is to use "HTML wikimarkup" for the table code, which is more robust. | |||
<includeonly>{{Sandbox other|| | <includeonly>{{Sandbox other|| | ||
Latest revision as of 17:43, 9 April 2025
| This page uses Creative Commons Licensed content from Wikipedia (view authors). |
 | This is a documentation subpage for Template:Str ≠ len It may contain usage information, categories and other content that is not part of the original template page. |
 | This template uses Lua: |
This is the {{str ≠ len}} meta-template.
It helps other templates check if a string is "not equal" vs. "equal" to a given length.
Note! For most usage cases it might be better to use {{str ≥ len}}. (See the see also section below.)
Usage
This template takes 3 to 4 unnamed parameters.
Here is how to check if the string "abcde" is exactly 5 characters:
{{str ≠ len | abcde | 5
| Not equal.
| Equal.
}}
Which returns this:
- Equal.
Templates have a problem to handle parameter data that contains equal signs "=". But that is easily solved by using numbered parameters. Here we check if the string "ab=cde" is exactly 100 characters:
{{str ≠ len
| 1 = ab=cde
| 2 = 100
| 3 = Not equal, "!=".
| 4 = Equal, "=".
}}
Which returns this:
- Not equal, "!=".
It probably is a good habit to always use the numbered parameters, since you might not know beforehand exactly how the data will look that your template will feed to this meta-template.
Parameters
Detailed parameter explanation:
{{str ≠ len
| 1 = A string
| 2 = A length
| 3 = Data to return/render when "not equally long".
| 4 = Data to return/render when "equally long".
}}
Empty or undefined strings are considered to be of 0 length.
Length values below 0 are considered to be 0.
Technical details
This template would be equivalent to templates named {{str != len}} or {{str == len}}, but we can't use those template names since they don't work well in MediaWiki.
Templates have problems to handle parameter data that contains pipes "|", unless the pipe is inside another template {{name|param1}} or inside a piped link [[Help:Template|help]]. Thus templates can not handle wikitables as input unless you escape them by using the template. This makes it hard to use wikitables as parameters to templates. Instead the usual solution is to use "HTML wikimarkup" for the table code, which is more robust.