Match () with regex () (): Difference between revisions
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{{Blocks|block_img=<scratchblocks>(match [foo bar] with regex [foo] [g] :: operators)</scratchblocks>|block_type=Reporter Block|category=[[Operators]]}} |
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== Information == |
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[[File:Block 5 26 2023-3 14 00 PM.png|thumb|590x590px|alt=match with regex block|match with regex block]] |
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The match regex block is a reporter block that matches a string with a [ |
The match regex block is a reporter block that matches a string with a [[w:Regular expressions|regular expression]], a regex. |
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== Use == |
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This block searches for every instance of the selected rule. The rule can be inserted into the second input box. The third input box acts as a |
This block searches for every instance of the selected rule. The rule can be inserted into the second input box. The third input box acts as a flag (more info later on) |
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== Examples == |
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=== Foo bar example === |
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<scratchblocks> |
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[[File:MatchWithRegex Example1.png|alt=match with regex: first example|thumb|Example 1]] |
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(match [foo bar] with regex [foo] [g] :: operators) // ["foo"] |
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</scratchblocks> |
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In this example inputs of the block it searches for the string "foo" in the string "foo bar" which will result in the array ["foo"] since there is only one foo in the string. |
In this example inputs of the block it searches for the string "foo" in the string "foo bar" which will result in the array ["foo"] since there is only one foo in the string. |
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=== Fruit example === |
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<scratchblocks> |
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[[File:MatchWithRegex Example2.png|alt=match with regex: second example|thumb|Example 2]] |
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(match [banana orange apple banana banana pear apple] with regex [banana] [g] :: operators) // ["banana","banana","banana"] |
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</scratchblocks> |
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For this example the block searches for every occurance of the word "banana" which results in the array ["banana","banana","banana"]. |
For this example the block searches for every occurance of the word "banana" which results in the array ["banana","banana","banana"]. |
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== See Also == |
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=== Regular expression rule syntax === |
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The rules of regular expressions have their own syntax which you can all look up on [https://en.wikipedia.org/wiki/Regular_expression#Syntax this website]. |
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* [[Regular expressions]] |
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The examples will appear as: [to be matched string] [rule] [third input] -> [result] |
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{| class="wikitable mw-collapsible mw-collapsed" |
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|+Syntax Table |
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!meta characters |
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!Description |
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!Example |
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|- |
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|. |
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|This is the syntax for any character |
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|["gray grey griy gary"] ["gr'''.'''y"] ["g"] -> ["gray", "grey", "griy"] |
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|- |
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|() |
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|groups a set of characters |
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|No actual change to the result, will be needed later on |
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|- |
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| + |
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|matches the preceding character or group one or more times |
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|["abbbbbba aba aa"] ["a'''b+'''a"] ["g"] -> ["abbbbbba","aba"] |
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|- |
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|? |
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|matches the preceding character or group zero or one times |
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|["aba aa abba abbbba"] ["a'''?b'''a"] ["g"] -> ["aba","aa"] |
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|- |
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|* |
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|matches the preceding character or group any amount of times |
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|["aba aa abbbbbbbba abbbbbbbbbbbbba"] ["a'''b*'''a"] ["g"] -> ["aba", "aa", "abbbbbbbba", "abbbbbbbbbbbbba"] |
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|- |
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|{M,N} |
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|matches the preceding character or group |
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a minimum of M to a naximum of N times |
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|["aba abbba abbbbba abbbbbbbbbbba"] ["a'''b{3,5}'''a"] ["g"] -> ["abbba","abbbbba"] |
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|- |
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|{,N} |
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|matches the preceding character or group a maximum of N times |
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|["aba abbba abbbbba abbbbbbbbbbba"] ["a'''b{,5}'''a"] ["g"] -> ["aba", "abbba", "abbbbba"] |
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|- |
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|{M,} |
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|matches the preceding character or group a minimum of M times |
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|["aba abbba abbbbba abbbbbbbbbbba"] ["a'''b{3,}'''a"] ["g"] -> ["abbba", "abbbbba", "abbbbbbbbbbba"] |
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|- |
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|{N} |
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|matches the preceding character or group exactly N times |
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|["aba abbba abbbbba abbbbbbbbbbba"] ["a'''b{3}'''a"] ["g"] -> ["abbba"] |
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|- |
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|[...] |
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|syntax for any characters or group within the rectangular parenthesis |
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|["Hello Hallo Hmllo Hkllo"] ["H'''[ea]'''llo"] ["g"] -> ["Hello","Hallo"]. |
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This can also used like this: |
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["Hello Hallo Hmllo Hkllo"] ["H'''[a-k]'''llo"] ["g] -> ["Hello","Hallo", "Hkllo"]. |
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which acts as every letter in the alphabet from a to k |
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|- |
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|<nowiki>|</nowiki> |
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|seperating possible character or groups |
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|["gray grey griy gary"] ["('''<nowiki>gray|grey|griy</nowiki>''')"] ["g"] -> ["gray", "grey", "griy"] |
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|- |
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|\w |
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|syntax for all [https://en.wikipedia.org/wiki/Alphanumericals Alphanumericals] (a-z A-Z 0-9 and _) |
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|["This is a_text90§!"] ["'''\w'''"] ["g"] -> ["T","h","i","s","i","s","a","_","t","e","x","t","9","0"] |
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|- |
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|\W |
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|syntax for all non-[https://en.wikipedia.org/wiki/Alphanumericals Alphanumericals] '''not''' (a-z A-Z 0-9 and _) |
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|["This is a_text90§!"] ["'''\W'''"] ["g"] -> ["§","!"] |
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|} |
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Latest revision as of 14:18, 6 July 2024
| Match () with regex () () | |
|---|---|
[[File:(match [foo bar] with regex [foo] [g] :: operators)|200px]] | |
| Block Type | Reporter Block |
| Category / Extension | Operators |
Information
The match regex block is a reporter block that matches a string with a regular expression, a regex.
Use
This block searches for every instance of the selected rule. The rule can be inserted into the second input box. The third input box acts as a flag (more info later on)
Examples
Foo bar example
(match [foo bar] with regex [foo] [g] :: operators) // ["foo"]
In this example inputs of the block it searches for the string "foo" in the string "foo bar" which will result in the array ["foo"] since there is only one foo in the string.
Fruit example
(match [banana orange apple banana banana pear apple] with regex [banana] [g] :: operators) // ["banana","banana","banana"]
For this example the block searches for every occurance of the word "banana" which results in the array ["banana","banana","banana"].