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  #1  
Old 20.01.2020, 16:42
djmakinera djmakinera is offline
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Default Regex and large files = hang

What to do if regex cannot handle large text, because the application will work infinitely long. Eternal hang.


Regex Universal URL is valid, it WORKS "STANDARD" txt huge files.

But for really "heavy" files it is impossible.


I want to extract a URL from a text file containing a lot of Unicode, text, links etc.

File Size: 32 MB

35.000.000 chars

But the third application supports 2,000,000,000 characters.

I don't know how I can solve this problem.
  #2  
Old 20.01.2020, 18:34
pspzockerscene's Avatar
pspzockerscene pspzockerscene is online now
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Default

Again nothing given - no log, no RegEx, no testlinks.

Closed!

Re-write your post, add the requested information and try again!


-psp-
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Spoiler:

A users' JD crashes and the first thing to ask is:
Quote:
Originally Posted by Jiaz View Post
Do you have Nero installed?
That's true James
Quote:
Originally Posted by James
Die Leute verstehen einfach nicht dass nur weil man mit einer Waffe auch auf Menschen schießen kann dass ein Schützenver​ein kein Ort für Amoklaufide​en ist
  #3  
Old 20.01.2020, 19:26
djmakinera djmakinera is offline
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Default Regular Expressions: Catastrophic Backtracking (EDIT PREV POST)

I have corrected @pspzockerscene

Sorry for the inconvenience.

Regular Expressions: Catastrophic Backtracking

Universal URLs Regex (Perfect URls Match any URL!)


My regex:
**External links are only visible to Support Staff****External links are only visible to Support Staff**

CRASH ANY APLICATION. The complexity of matching the regular expression exceeded predefined bounds. HOW TO refactoring the regular expression to make each choice made by the state machine unambiguous???
  #4  
Old 20.01.2020, 19:52
pspzockerscene's Avatar
pspzockerscene pspzockerscene is online now
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Default

What is this supposed to pickup?

Example URLs and log are still missing!

I'am unable to tell you exactly how to optimize your RegEx but there are good test websites/applications out there:
regex101.com

Add the required information and try again ...

Closed!

-psp-
__________________
JD Supporter, Plugin Dev. & Community Manager

Erste Schritte & Tutorials || JDownloader 2 Setup Download
Spoiler:

A users' JD crashes and the first thing to ask is:
Quote:
Originally Posted by Jiaz View Post
Do you have Nero installed?
That's true James
Quote:
Originally Posted by James
Die Leute verstehen einfach nicht dass nur weil man mit einer Waffe auch auf Menschen schießen kann dass ein Schützenver​ein kein Ort für Amoklaufide​en ist
  #5  
Old 21.01.2020, 00:02
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raztoki raztoki is offline
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Default

more importantly this is not JDownloader related query. We support JD and not your other application. We have also stated in the past we wont support regex queries, as we end up writting the pattern for you. When you can write and test in websites or applications thus saving us work and should allow you to learn at your pace vs giving you the answer.
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