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The correct form of regular expression is delimiter{pattern}delimiter, f.e. /^([a-z]*)$/i or @^(?:http://)?([^/]+)@i. Every form compatible with functions checking correctness of regular expressions in PHP are allowed (example).
The reason is obvious. With delimiters you have a chance to add modifiers to the regexp. Otherwise script will automatically add / at the beginning and / at the end of the pattern.
Generally, the user determines what content and at what way he wants to test, but it must have full rights to publish the test content because it will be available for other Internet users. You should also avoid writing obscene phrases, vulgar phrases, or suggest resources incompatible with Polish law. You are fully responsible for the content posted by you on the site. On the reasoned request of a third party individual entries can be removed from the site.
A regular expression is a pattern that describes a set of strings.
There are a lot of examples on the internet. You should especially check this:
Please submit every found bug by typing comment here (polish and english).
Yes. On ID column of every tested expression you can find hiperlink. Copy it and share, that's all.
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ID | Regular expression | Subject | Result | Matches | Link |
---|---|---|---|---|---|
531289 | 1,/^$/ d | adasdas asd |
false | Link | |
531288 | /a/ |
<input type="text" id="dzie"> <input type="button" value="sprawdz" > function dziesie(){ var dziesietna = document.getElementById("dzie").value; var wzorzec = /^[0-9]{11}$/; if(wzorzec.test(dziesietna)){ alert("Liczba jest dziesiętna") } else { alert("Liczba nie jest dziesiętna") } } |
true |
|
Link |
531287 | /a/ |
<!DOCTYPE html> <html lang="en"> <head> Document </head> <body> <input type="text" id="dzie"> <input type="button" value="sprawdz" > function dziesie(){ var dziesietna = document.getElementById("dzie").value; var wzorzec = /^[0-9]{11}$/; if(wzorzec.test(dziesietna)){ alert("Liczba jest dziesiętna") } else { alert("Liczba nie jest dziesiętna") } } </body> </html> |
true |
|
Link |
531286 | /^[0-9]+$/ | 9.2 |
false | Link | |
531285 | /^[0-9]+$/ | 9 |
true |
|
Link |
531284 | /^[0-9]+$/ | 12345321535661 | true |
|
Link |
531283 | /^[0-9]+$/ | 12345 | true |
|
Link |
531282 | /^[0-9]+$/ | 123 456 789 01 | false | Link | |
531281 | /^\id(11)$/ | 123 456 789 | false | Link | |
531280 | /^\d{11}$/ | 123 456 789 01 | false | Link | |
531279 | /^\d{11}$/ | 12345678901 | true |
|
Link |
531278 | /a/ | cock | false | Link | |
531277 | /a/i/d/d/d/ | Podrozna top | false | Link | |
531276 | ^[/kot/]$ | kot | false | Link | |
531275 | kacper b ukradl mi sniadaniowke | . | false | Link | |
531274 | [/kot/] | kot | false | Link | |
531273 | [/kot/] | kis | false | Link | |
531272 | [/kot/] | kat | false | Link | |
531271 | /[tkfobtiu]/ | krycprbycrypcccoyrpwewefyrpweweiyruyrpt | true |
|
Link |
531270 | /a/ | antek oglada tik toki NOWAY | true |
|
Link |
531269 | /a/i/d/d/d/ | kto kabluje ten kabluje pozdro Jakub jest czysty | false | Link | |
531268 | [asdnf] | antek wdycha cieple powietrze {GEEEEJ} | false | Link | |
531267 | /GG/ | ΝɪGGЕR ΝɪGGЕRΝɪGGЕRΝɪGGЕR ΝɪGGЕR ΝɪGGЕRΝɪGGЕRΝɪGGЕR ΝɪGGЕR ΝɪGGЕRΝɪGGЕRΝɪGGЕR ΝɪGGЕR ΝɪGGЕR ΝɪGGЕR ΝɪGGЕR ΝɪGGЕR ΝɪGGЕR ΝɪGGЕRΝɪGGЕRΝɪGGЕRΝɪGGЕRΝɪGGЕR ΝɪGGЕRΝɪGGЕRΝɪGGЕRΝɪGGЕRΝɪGGЕR ΝɪGGЕRΝɪGGЕRΝɪGGЕRΝɪGGЕRΝɪGGЕR ΝɪGGЕR ΝɪGGЕR ΝɪGGЕR ΝɪGGЕR ΝɪGGЕR ΝɪGGЕR ΝɪGGЕRΝɪGGЕRΝɪGGЕR ΝɪGGЕR ΝɪGGЕRΝɪGGЕRΝɪGGЕR ΝɪGGЕR ΝɪGGЕRΝɪGGЕRΝɪGGЕR ΝɪGGЕR |
true |
|
Link |
531266 | /a/i/d/d/d/ | Co tu sie odsigmala | false | Link | |
531265 | /a/i/d/d/d/ | Antek przeklina |
false | Link |