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Hello all,
I'm a newbie to regex and need some help. What I want to do is to check if a filename contains two or more _ beneath each other.
For example: painting__test.pdf or painting___test2.pdf
those should be replaced by only one _
hope you can assist in solving.
kind regards
Franz-Georg
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original folder "datasets to optimize" contains 1000s files like this
variable 2-3 dots and 1 dot with numbers 1.87.184 and 0.35643634, and sometimes they contain (#num#) at the end of number
how to copy matching files from "datasets to optimize" to "result"?
~/Documents/optimizer/datasets to optimize #
-rwxr-xr-x 1 root root 170K Nov 11 14:11 'MethodStats 1.87.184_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 193K Nov 11 14:11 'MethodStats 0.206117(4)_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 199K Nov 11 14:11 'MethodStats 9.58.155_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 187K Nov 11 14:11 'MethodStats 9.61.114_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 181K Nov 11 14:11 'MethodStats 9.6.185_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 212K Nov 11 14:11 'MethodStats 9.64.191_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 171K Nov 11 14:11 'MethodStats 9.66.150_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 231K Nov 11 14:11 'MethodStats 9.72.194_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 241K Nov 11 14:11 'MethodStats 9.73.138_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 176K Nov 11 14:11 'MethodStats 9.83.123_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 179K Nov 11 14:11 'MethodStats 9.83.125_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 181K Nov 11 14:11 'MethodStats 9.83.195_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 176K Nov 11 14:11 'MethodStats 9.85.133_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 218K Nov 11 14:11 'MethodStats 9.85.167_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 195K Nov 11 14:11 'MethodStats 9.86.177_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 178K Nov 11 14:11 'MethodStats 23.92.166(1)_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 210K Nov 11 14:11 'MethodStats 9.89.189_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 218K Nov 11 14:11 'MethodStats 0.2048140_vardata_L6_probin.txt'
and output folder "result" has the same but before that is added FW Retest
/root/Documents/optimizer/result
-rwxr-xr-x 1 root root 3.4M Nov 11 14:14 'FW Retest - MethodStats 1.87.184_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 2.7M Nov 11 14:15 'FW Retest - MethodStats 0.2048140_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 2.5M Nov 11 14:15 'FW Retest - MethodStats 0.206117(4)_vardata_L6_probin.txt'
-rwxr-xr-x 1 root root 2.4M Nov 11 14:15 'FW Retest - MethodStats 23.92.166(1)_vardata_L6_probin.txt'
how to copy matching files from "datasets to optimize" to "result"?
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I doubt this is a regular expression problem.
Best I can figure out you have files in directory A and you want to copy some of those to B.
Then I can't follow what you want because it is either to overwrite or for the missing ones.
In either case you will need a loop - which has nothing to do with regular expressions.
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I am looking for a substution RegEx which prefixes all words with a caret, except when followed by a bracket. E.g. "func(x)=y" must be replaced by "func(^x)=^y" .
I came up with (in Python code):
re.sub(r'([A-Za-z][A-Za-z0-9_]*)([^(]|$)', r'^\1\2', 'func(x)=y')
but that does not work. "f(x)=y" is replaced correctly, but it fails when the word before the bracket has more characters.
I suspect it can be done with a single substitution, but I can't figure it out. I guess my solution does not work because the first bracketed regular expression is not greedy enough. What am I doing wrong?
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I asked ChatGPT  and it suggested \b for word boundaries and (?!.) for negative look ahead assertion, so:
re.sub(r'(\b[A-Za-z][A-Za-z0-9_]*\b)(?!\()', r'^\1', 'val1+function(x)=y+val2+f(xx)')
'^val1+function(^x)=^y+^val2+f(^xx)'
works.....
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When you want to search and replace specific patterns of text, use regular expressions. They can help you in pattern matching, parsing, filtering of results, and so on. Once you learn the regex syntax, you can use it for almost any language. Press Ctrl 0R to open the search and replace pane.
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Good morning everyone,
I can't use regular formulas
I basically have to look for initials
(jolly)"se_meta":90
And I have to replace
Work09Document2023”se_meta”:90
Thanks and best regards
Roberto Grigis
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Quote: I can't use regular formulas
Because you aren't allowed to, or because you don't know how to? It makes a big difference in the answer ...
What have you tried?
Where are you stuck?
What help do you need?
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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I can’t use regular formulas
I have all the files containing:
Work09Document2022"se_meta":9001
Work09Document2022"se_meta":9002
Work09Document2022"se_meta":9003
Work09Document2022"se_meta":9004
Work09Document2022"se_meta":9005
.
.
.
(and so on)
I basically have to look for initials
(Wildcard)"se_meta":90
And I have to replace
Work09Document2023"se_meta":90
Thanks for your help
Roberto Grigis
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At the risk of repeating myself...
Quote: Because you aren't allowed to, or because you don't know how to? It makes a big difference in the answer ...
What have you tried?
Where are you stuck?
What help do you need?
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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For the REGEX program or also NOTEPAD++
Thanks and best regards
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What's a "regular formula"? Are you talking about "regular expressions"?
You're not going to get any answers to whatever question you have until you spell out, in detail, the actual question.
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For a manual process, use something like PowerRename[^].
If you want to do this in code, you're going to need to provide a lot more detail. But since you keep ignoring OG's questions, I won't hold my breath.
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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Thanks for your help,
that's not what I'm interested in. Find and replace within the file
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STOP TYPING AS LITTLE AS POSSIBLE AND ACTUALLY EXPLAIN WHAT YOU'RE HAVING A PROBLEM DOING!!!!
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Given the conversation here and that you were equally sparse on words in your question on the Notepad++ forum https://community.notepad-plus-plus.org/topic/25021/regular-formulas it does seem that you don't read the replies properly and respond with a LOT more information.
If it wasn't for the pigeon English feel I'd almost say this is an AI conversation.
Terry
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I think we are witnessing a Miracle Of Life: the birth of a Help Vampire. Fascinating - you don't often get to see them in the wild until they are at least 3 years old ... 
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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I've got some data input by a user.
it's like <span> </span> and this can be any number of this non-breaking space up until the close of the span tag, with nothing else.
I'm trying to figure out a reasonable way to be able to detect an occurance of a span like this. It would be the span and then 30 occurances of the non-breaking space, or it could be 300 occurances, or any number between.
I was hoping there'd be a way to detect this repeating pattern within a regular expression.
<span> </span>
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You might need to test for the Unicode value.
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Specifics of where/which regex is used matters.
But in general
{code}
\s*( \s*)+
{code}
Les Stockton wrote: until the close of the span tag
In valid XML looking for the closing tag is pointless. But you can add it if you want.
Les Stockton wrote: XML
Just noting that regexes to parse XML is not a good idea. Primarily this comes down to blocks embedded in other blocks. You cannot parse that with a regex. But there are other complex issues also that would require hideous regexes (which means slow) also.
Also there can be other variances in what you posted.
1. Multiline
2. Spaces in the tags
3. Attributes in the tag.
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In general, trying to parse XML (or HTML) with regex is not a good idea, and almost certainly doomed to failure. However, to match this specific case you might try:
<span>( *)+</span>"
That's an extended POSIX regex, and seems to do the job. It matches any of the following:
<span> </span>
<span> </span>
<span> </span>
<span> </span>
<span> </span> If you need to accept any white space you might try using ( [[:space:]]*) as the sub-pattern.
If you may have line breaks in the span text, then you may need to tell your regex engine to not treat them as end-of-text markers.
Keep Calm and Carry On
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Hello! I'm new to learning regex and I cant seem to figure out how to exclude certain characters from my regex.
In my example I want to structure names as FIRST_NAME, LAST_NAME. Meaning "Rog er , Green" becomes "Roger, Green".
Which I have acomplished with the RegEx (?=[A-Z]). My current issue is in Sweden where I recide conjoined names such as "Lars-Erik" is rather common and with my current RegEx that becomes "Lars- Erik" which I dont want.
It also does not take into account nordic uppercase letters such as Ö etc.
Is there a way of excluding Uppercase letters that have a Hyphen prefix, as well as including more than US characters?
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