I have a very large .CSV document with text I need removing. The data looks like this
774431994&images=774431994,774431996,774431998,774432000,774432003,774432006,774432009&formats=0,0,0,0,0 /1/6/9/5/2/6/8/webimg/774431994
774431996&images=774431994,774431996,774431998,774432000,774432003,774432006,774432009&formats=0,0,0,0,0 /1/6/9/5/2/6/8/webimg/774431996
774431998&images=774431994,774431996,774431998,774432000,774432003,774432006,774432009&formats=0,0,0,0,0 /1/6/9/5/2/6/8/webimg/774431998
774432000&images=774431994,774431996,774431998,774432000,774432003,774432006,774432009&formats=0,0,0,0,0 /1/6/9/5/2/6/8/webimg/774432000
774432003&images=774431994,774431996,774431998,774432000,774432003,774432006,774432009&formats=0,0,0,0,0 /1/6/9/5/2/6/8/webimg/774432003
774432006&images=774431994,774431996,774431998,774432000,774432003,774432006,774432009&formats=0,0,0,0,0 /1/6/9/5/2/6/8/webimg/774432006
774432009&images=774431994,774431996,774431998,774432000,774432003,774432006,774432009&formats=0,0,0,0,0 /1/6/9/5/2/6/8/webimg/774432009
I'm using the following Regex which is working on http://regexr.com/3a6oa
/.{128}(?=webimg).{10}/g
It just doesn't seem to work with Textmate Search. Does anyone know why? I need to select all of this junk and replace it with nothing, the numbers are unique each time.
Thanks very much
Why are you using a lookahead in your pattern? Just use: /.{128}webimg.{10}/g
Why are you using Textmate search at all? I'd need to know more context of the problem to say for sure, but I bet a simple sed command could just be used instead:
sed -i "webimg/d" ./filename.csv
Related
I would need a regex to match my files named "something".Title"numberFrom1to99".mp4 on Windows' File Explorer, my first approach as a regex newbie was something like
"..mp4"
, but it didn't work, so i tried
"*.Title[1-9][0-9].mp4"
, that also did not work.
I would also like a tip on how to search regex related advices on Stackoverflow archive but also on the web, so that i can be specific, but without having the regex in the searching bar interact.
Thank you!
EDIT
About the second part of the question: in the question itself there is written "..mp4" but i wrote "asterisk"."asterisk".mp4, is there any universal way to write regex on the web without it having effect and without escaping the characters? (in that way the backslash shows inside the regex, and that could be misunderstood)
Try something like this:
(.*)\.[A-za-z]+\d+\.mp4
See this Regex Demo to get an explanation on the regex.
Use regex101.com to test your regexs
Here it is:
^[\s\S]*\.Title[1-9][0-9]?\.mp4$
I suggest regexr.com to find many interesting regexes(Favourites tab) and simple tutorial.
About the second part of the question: in the question itself there is written "..mp4" but i wrote "asterisk"."asterisk".mp4, is there any universal way to write regex on the web without it having effect and without escaping the characters? (in that way the backslash shows inside the regex, and that could be misunderstood)
I am trying to make an if-then-else statement using RegEx. I want to match the text if it contains Monty and also contains Python. Also the text should get matched if Monty is not present in the text.
RegEx
(?(?=Monty)(?(?=Python).*|)|^.*).*$
Kindly help!
How about this:
(^(?!.*Monty(?!.*Python.*).*).*$|^.*Python.*Monty.*$)
This passes my tests, but let me know if it works for you.
I am not versed in lookahead regex but just tried to build the regex from what I understood from above description. Check the link to see if this is what you are trying to do.
try this instead
((?=Monty)((?=Python).*|)|^.*).*$
I tried to make regex syntax for that but I failed.
I have 2 variables
PlayerInfo[playerid][pLevel]
and
Character[playerid]
and I want to catch only the second variable,I mean only the world what don't contain PlayerInfo, but cointains [playerid]
"(\S+)\[playerid\]" cath both words and (\S+[^PlayerInfo])\[playerid\] jump on some variables- they contais p,l,a,y ...
I need to replace in notepad++,all variables like Text[playerid] to ExClass [playerid][Text]
Couple Pluasible solutions.
List item
Notepad has a plugin called python script. Running regex from there
gives full regex functionality, the python version anyway, and a lot
of powerful potential beyond that. And I use the online python regex tester to help out.
RegRexReplace plugin helps create regex plugins in Notepad++, so when you do hit a limitation, you find out a lot quicker.
Or of course default to your alternate editor (I'm assuming you have
one?) or this online regex tool is absolutely amazing. You
can perform the action on the text online as well.
(I'd try to build a regex for you, but I'm a bit lost as to what you're looking for. Unless the Ivo Abeloos got it. If you're still coming up short, maybe a code example along with values displayed?)
Good luck!
It seems that Notepad++ support negative lookbehind since v6.
In notepad++ you could try to replace (.+)\[(.+)\] with ExClass\[\2\]\[\1\]
Try to use negative lookbehind.
(?<!PlayerInfo)\[playerid\]
EDIT: unfortunately notepad++ does not support negative lookbehind.
I tried to make a workaround based on the following naive idea:
(.[^o]|[^f]o)[playerid]
But this expression does not work either. Notepad++ seems to fail in alternative operator. Thus the answer is: it is impossible to do exactly what you want. Try to solve the problem in other way or use alternative tool.
I am looking to remove a ton of bad spam URL links from my forums using regex in either grep or vim and subsequently using find/replace commands. I am looking for a way to select just the bad URLs to do that.
All of the URLs are different and are preceeded by \n________\n. (Thats 8 underscores)
Here is an example of one of the URLs:
\n________\n[URL=http://boxvaporizers.com]Box Vaporizers[/URL]
So basically I was trying to use the \n... and the [/URL] as boundaries to select that and everything inbetween. What I came up with is this:
[\\]n[_][_][_][_][_][_][_][_][\\]n.*\[\/URL\]]
Using that does not correctly close the search and selects pretty much everything. I very am new at this and appreciate any insight. Thanks.
Assuming GNU ERE, this should work:
\\n_{8}\\n\s\[URL=(.*)].*\[/URL]
RegexBuddy seems to agree with me:
That said,
> grep -E \\n_{8}\\n\s\[URL=(.*)].*\[/URL] test.txt
doesn't work on my system (Cygwin with GNU grep 2.6.3; test.txt's contents are shown in the screenshot above).
If you want to give sed a chance following will do the job:
sed 's/^.*\(\[URL.*\)$/\1/' file.txt
PS: You can do same :s/^.*\(\[URL.*\)$/\1/ in your vi session as well.
OUTPUT
For the file.txt that contains:
\n__\n[URL=http://boxvaporizers.com]Box Vaporizers[/URL]
It produces:
[URL=http://boxvaporizers.com]Box Vaporizers[/URL]
In Vim this should remove all lines that match the pattern:
:g/\\n\%(\\_\)\{8}\\n \[URL=.\{-}\/URL\]/d
That pattern matches the sample text taken literally, all in one line.
I was actually able to do this in Microsoft Word using the following:
[\\]n_{8}[\\]n?*/URL\]
Thank you for all the input, couldn't have done it without the help!
I'm kind of new to programming, so forgive me if this is terribly obvious (which would be welcome news).
I do a fair amount of PHP development in my free time using pregmatch and writing most of my expressions using the free (open source?) Regex Tester.
However frequently I find myself wanting to simply quickly extract something and the only way I know to do it is to write my expression and then script it, which is probably laughable, but welcome to my reality. :-)
What I'd like is something like a simple text editor that I can feed my expression to (given a file or a buffer full of pasted text) and have it parse the expression and return a document with only the results.
What I find is usually regex search/replace functions, as in Notepad++ I can easily find (and replace) all instances using an expression, but I simply don't know how to only extract it...
And it's probably terribly obvious, can expression match only the inverse? Then I could use something like (just the expression I'm currently working on):
([^<]*)
And replace everything that doesn't match with nothing. But I'm sure this is something common and simple, I'd really appreciate any poniters.
FWIW I know grep and I could do it using that, but I'm hoping their are better gui'ified solution I'm simply ignorant of.
Thanks.
Zach
What I was hoping for would be something that worked in a more standard set of gui tools (ie, the tools I might already be using). I appreciate all the responses, but using perl or vi or grep is what I was hoping to avoid, otherwise I would have just scripted it myself (of course I did) since their all relatively powerful, low-level tools.
Maybe I wasn't clear enough. As a senior systems administrator the cli tools are familiar to me, I'm quite fond of them. Working at home however I find most of my time is spent in a gui, like Netbeans or Notepad++. I just figure there would be a simple way to achieve the regex based data extraction using those tools (since in these cases I'd already be using them).
Something vaguely like what I was referring to would be this which will take aa expression on the first line and a url on the second line and then extract (return) the data.
It's ugly (I'll take it down after tonight since it's probably riddled with problems).
Anyway, thanks for your responses. I appreciate it.
If you want a text editor with good regex support, I highly recommend Vim. Vim's regex engine is quite powerful and is well-integrated into the editor. e.g.
:g!/regex/d
This says to delete every line in your buffer which doesn't match pattern regex.
:g/regex/s/another_regex/replacement/g
This says on every line that matches regex, do another search/replace to replace text matching another_regex with replacement.
If you want to use commandline grep or a Perl/Ruby/Python/PHP one-liner any other tool, you can filter the current buffer's text through that tool and update the buffer to reflect the results:
:%!grep regex
:%!perl -nle 'print if /regex/'
Have you tried nregex.com ?
http://www.nregex.com/nregex/default.aspx
There's a plugin for Netbeans here, but development looks stalled:
http://wiki.netbeans.org/Regex
http://wiki.netbeans.org/RegularExpressionsModuleProposal
You might also try The Regulator:
http://sourceforge.net/projects/regulator/
Most regex engines will allow you to match the opposite of the regex.
Usually with the ! operator.
I know grep has been mentioned, and you don't want a cli tool, but I think ack deserves to be mentioned.
ack is a tool like grep, aimed at
programmers with large trees of
heterogeneous source code.
ack is written purely in Perl, and
takes advantage of the power of Perl's
regular expressions.
A good text editor can be used to perform the actions you are describing. I use EditPadPro for search and replace functionality and it has some other nice feaures including code coloring for most major formats. The search panel functionality includes a regular expression mode that allows you to input a regex then search for the first instance which identifies if your expression matches the appropriate information then gives you the option to replace either iteratively or all instances.
http://www.editpadpro.com
My suggestion is grep, and cygwin if you're stuck on a Windows box.
echo "text" | grep ([^<]*)
OR
cat filename | grep ([^<]*)
What I'd like is something like a
simple text editor that I can feed my
expression to (given a file or a
buffer full of pasted text) and have
it parse the expression and return a
document with only the results.
You have just described grep. This is exactly what grep does. What's wrong with it?