Template:Str rep
Sarna News
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Template documentation | This template uses Lua: |
Returns a modified copy of a given text, with the first occurrence of a find-string replaced with a replacement-string.
Contents
Usage[edit]
{{Str rep|text...|find-string|replace-string}}{{Str rep| 1=text... | 2=find-string | 3=replace-string }}
This is equivalent to {{#invoke:String|replace|source=text...|find-string|replace-string|1}}.
Parameters[edit]
There are three positional (unnamed) parameters, all required:
- the initial text string subject to search and replacement
- the find-string to search for in the text
- the replacement string: param 3 replaces param 2's first occurrence in param 1.
Details[edit]
The value of the text parameter may be anything that resolves to a string, such as:
- Immediate text entered directly into the parameter field:
{{str rep|Dogs chase cats. Cats chase mice.|...}} - A parameter passed from a transcluding template:
{{str rep|{{{5|}}}|...}}or{{str rep|{{{text|}}}|...}} - A file or template:
{{str rep|{{Template:Str rep/doc/Dogs and cats}}|...}} - or anything else that resolves to a string.
Equal signs and pipes[edit]
Equal signs in parameter values passed as immediate text either need to be escaped as {{=}}, or you can leave them unescaped and use the built-in numeric names (|1=, |2=, and |3=) for the three unnamed positional parameters, as in the section usage at the top.
Pipe characters in immediate text should be escaped either as | or as {{!}}. See Help:Template#Usage hints and workarounds. Pipe characters in embedded items such as params or template invocations don't need to be escaped.
White space[edit]
Pay attention to the use of white space in the parameters; all white space is significant in positional parameters. In particular, leading and trailing white space is not removed, and can affect the results. See contrasting examples #1 and #2 below.
If you like the readability of having convenience blanks before and after the parameters so they're not adjacent to the pipe characters, then use the built-in numeric names |1=, etc. These will not include any leading or trailing blanks in the parameter value; see example 3.
Examples[edit]
{{str rep|Dogs chase cats.|cats|balls}}⟶ Dogs chase balls.{{str rep|Dogs chase cats.|cats |balls }}⟶ Dogs chase cats. —
leading and trailing blanks are significant; see Details{{str rep|Dogs chase cats.|2=cats |3=balls }}⟶ Dogs chase balls. —
... but not when named parameters are used{{str rep|Dogs chase cats. Cats chase mice.|chase|love}}⟶ Dogs love cats. Cats chase mice. — only first occurrence replaced{{str rep|{{Str rep/doc/Dogs and cats}}|chase|love}}⟶ Template:Str rep/doc/Dogs and cats — text can be entered by a template
See also[edit]
- {{Replace}} - to replace all occurrences (or a specific number of occurrences)