MRT - How to remove all characters after a string

[Alexisback]

Why doesn't this regular expression work?

(?<=.jpg).*

I have to delete from a folder all the text after the end of the JPG

first

-_0qxe-yGro.jpg@size=960x720&quality=96&sign=25ff49e3eaba39ed3ca04908c6f779f4&type=album

after

-_0qxe-yGro.jpg

Image: https://www.upload.ee/image/13915581/sshot-1.png

[solid]

Works at my place.

Just tick [E], and untick [Subst.] ([Sostituisci])

Although I'm not getting error in any case.

[Alexisback]

It doesn't work, I receive error

Image: https://www.upload.ee/image/13915700/sshot-2.png

[Gral]

What about:
Search: .jpg*
Replace .jpg
Without RegEx?

[Alexisback]

What about:
Search: .jpg*
Replace .jpg
Without RegEx?

Thanks, this works , why doesn't it work RegEx

[Stefan2]

, why doesn't it work RegEx

It doesn't work because you didn't read the help (F1-key inside of MRT)

We do not have Lookaround whit the regex engine in use.





 

[Alexisback]

, why doesn't it work RegEx

It doesn't work because you didn't read the help (F1-key inside of MRT)

We do not have Lookaround whit the regex engine in use.

ok, I'll give a look at that section
thank you all

[solid]

Thanks, this works , why doesn't it work RegEx

What is your version of TC?

It doesn't work because you didn't read the help (F1-key inside of MRT)

We do not have Lookaround whit the regex engine in use.

It seems that TC Regex engine started supporting assertions (positive/negative look behind/ahead). Yes, it is in the help file, I was surprised too.

TC History doesn't mention anything about this, but there is a line about an update of the regex library in TC10_PB3.

[tuska]

Why doesn't this regular expression work?

(?<=.jpg).*

It works...

Code: Select all

Trova:		  (?<=.jpg).*
Sostituisci con:  <Cancella>
1x		  [✓]
RegEx		  [✓] 
Sostituisci	  [ ]

Code: Select all

Veccio nome											Nuovo nome
-_0qxe-yGro.jpg@size=960x720&quality=96&sign=25ff49e3eaba39ed3ca04908c6f779f4&type=album	-_0qxe-yGro.jpg

1x  Only replace the first occurrence of the search string if it appears multiple times in the file name

Subst. Substitution: The entire file name will be replaced by the characters entered in the "Replace" field.
If this option isn't checked, only the found expression will be replaced.
You can work with subexpressions, see the sample in regular expressions.

25.03.21 Release Total Commander 10.00 public beta 3
23.03.21 Added: Updated the internal regular expression library to latest version from https://github.com/andgineer/TRegExpr/ (32/64)

TC (TRegExpr) ==> does support "Lookaround-Assertions", e.g. "lookahead" and "lookbehind" up from TC 10.00 public beta 3 (25.3.21).

Important note: The used regex library has a limitation that look ahead must be at the end of the regular expression,
and look behind must be at the start. Otherwise an error will be shown.

[Alexisback]

Thanks, this works , why doesn't it work RegEx

What is your version of TC?

9.12 x64
yes, I know I have to update, but the fact that this version is customized with menu and script

HISTORY.TXT wrote:
25.03.21 Release Total Commander 10.00 public beta 3
23.03.21 Added: Updated the internal regular expression library to latest version from https://github.com/andgineer/TRegExpr/ (32/64)

that's why it doesn't work

[solid]

9.12 x64
yes, I know I have to update, but the fact that this version is customized with menu and script

I believe all the users here have heavily customized versions of TC. No harm is done while updating.
Just in case, make a backup at least of the settings prior to updating,