Difference between revisions of "Help:Regular expressions"
From Nookipedia, the Animal Crossing wiki
(Added an online visual regex tester) |
(Added an online visualizer regex) |
||
(7 intermediate revisions by 3 users not shown) | |||
Line 14: | Line 14: | ||
* [https://regexr.com/ regexr.com] | * [https://regexr.com/ regexr.com] | ||
* [https://extendsclass.com/regex-tester.html extendsclass.com] | * [https://extendsclass.com/regex-tester.html extendsclass.com] | ||
+ | * [https://softwium.com/regex-explainer/ softwium.com] | ||
== Examples == | == Examples == | ||
Below is a list of examples of regular expressions that may help you on the wiki. Feel free to expand this list. | Below is a list of examples of regular expressions that may help you on the wiki. Feel free to expand this list. | ||
+ | |||
+ | * Replacing instances of <code><nowiki>{{I|Item Name}}</nowiki></code> with <code><nowiki>{{I|Item Name|New Horizons}}</nowiki></code> (Python): | ||
+ | :Find: <code><nowiki>{{I\|(?!.*\|)(.*?)}}</nowiki></code> | ||
+ | :Replace: <code><nowiki>{{I|\1|New Horizons}}</nowiki></code> | ||
* Matching a multi-line Foreignname template and adding a new "See also" section after it (Python): | * Matching a multi-line Foreignname template and adding a new "See also" section after it (Python): | ||
:Find: <code><nowiki>{{Foreignname([\s\S]*?\n}})</nowiki></code> | :Find: <code><nowiki>{{Foreignname([\s\S]*?\n}})</nowiki></code> | ||
− | :Replace: <code><nowiki>{Foreignname\1\n\n==See also==</nowiki></code> | + | :Replace: <code><nowiki>{{Foreignname\1\n\n==See also==</nowiki></code> |
+ | |||
+ | * Add <code>f#-img</code> parameters after each <code>furn#</code> parameter in instances of house templates; the template takes in the furniture name as a parameter and returns a filename (AWB): | ||
+ | :Find: <code><nowiki>\|furn([1-9]\d?)= (.*)</nowiki></code> | ||
+ | :Replace: <code><nowiki>|furn$1= $2\n|f$1-img= {{subst:Example|$2}}</nowiki></code> | ||
+ | |||
+ | * Prepend an <code>html</code> selector to every CSS property in a stylesheet ([https://stackoverflow.com/a/37695196 source] on StackOverflow by [https://stackoverflow.com/users/6438812/ryan-worth Ryan Worth]): | ||
+ | :Find: <code><nowiki>(^(?:\s|[^@{])*?|[},]\s*)(\/\/.*\s+|.*\/\*[^*]*\*\/\s*|@media.*{\s*|@font-face.*{\s*)*([.#]?-?[_a-zA-Z]+[_a-zA-Z0-9-]*)(?=[^}]*{)</nowiki></code> | ||
+ | :Replace: <code><nowiki>$1$2html $3</nowiki></code> | ||
− | + | {{Navbox Nookipedia}} |
Latest revision as of 09:13, December 9, 2023
A regular expression (regex) is a sequence of characters defining a search pattern. On the wiki, they are commonly used for finding and replacing text through Special:ReplaceText (staff only), AutoWikiBrowser, Pywikibot, or Scribunto/Lua modules.
Each tool/programming language uses its own ruleset for regular expressions:
- Special:ReplaceText supports a small subset (
( ) . * + ? [ ]
) of the PHP and MySQL/PostgreSQL regular-expression set. - AutoWikiBrowser uses .NET regular expressions.
- Pywikibot uses Python regular expressions.
- Lua/Scribunto pattern are similar to regular expressions, but not identical. See this page for a list of differences.
If you need help with regular expressions, you may post on the talk page, or join the Nookipedia Discord and ask in the #wiki-tech channel.
Testing[edit]
There are several online tools to test our patterns. A small selection is listed below.
Examples[edit]
Below is a list of examples of regular expressions that may help you on the wiki. Feel free to expand this list.
- Replacing instances of
{{I|Item Name}}
with{{I|Item Name|New Horizons}}
(Python):
- Find:
{{I\|(?!.*\|)(.*?)}}
- Replace:
{{I|\1|New Horizons}}
- Matching a multi-line Foreignname template and adding a new "See also" section after it (Python):
- Find:
{{Foreignname([\s\S]*?\n}})
- Replace:
{{Foreignname\1\n\n==See also==
- Add
f#-img
parameters after eachfurn#
parameter in instances of house templates; the template takes in the furniture name as a parameter and returns a filename (AWB):
- Find:
\|furn([1-9]\d?)= (.*)
- Replace:
|furn$1= $2\n|f$1-img= {{subst:Example|$2}}
- Prepend an
html
selector to every CSS property in a stylesheet (source on StackOverflow by Ryan Worth):
- Find:
(^(?:\s|[^@{])*?|[},]\s*)(\/\/.*\s+|.*\/\*[^*]*\*\/\s*|@media.*{\s*|@font-face.*{\s*)*([.#]?-?[_a-zA-Z]+[_a-zA-Z0-9-]*)(?=[^}]*{)
- Replace:
$1$2html $3
Nookipedia | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|