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Old 01-14-2014, 05:16 AM   #1
mobiuser
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Need help with a regex

Hi guys, I'm working on a dictionary for the kindle pw, but I need some help with the regular-expressions.
This is the regex: if the string "phrasal verb" is found I'd like to replace the "<b>" tag (also present in the same line) with this "<b>⌂ ". So there will be a tag, a symbol and an empty space. Any suggestions? Thanks.
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Old 01-14-2014, 06:21 AM   #2
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The application you are using is important here, as there are multiple flavors or RegEx. The following should work:

look for: (\<b\>)(?=phrasal verb)
Replace by: \1⌂
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Old 01-14-2014, 07:12 AM   #3
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The regex doesn't seem to work. I'm using notepad++.
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Old 01-14-2014, 07:27 AM   #4
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Quote:
Originally Posted by mobiuser View Post
The regex doesn't seem to work. I'm using notepad++.
You description of the string that you're looking for is somewhat vague. Assuming that you want to replace:

Code:
<b>take down</b> phrasal verb
with

Code:
<b>take down</b> phrasal verb
You could search for:

Code:
<b>(.*)<\/b> (phrasal verb)
and replace it with:

Code:
<b>⌂\1</b> \2
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Old 01-14-2014, 07:43 AM   #5
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Quote:
Originally Posted by Doitsu View Post
You could search for:

Code:
<b>(.*)<\/b> (phrasal verb)
and replace it with:

Code:
<b>⌂\1</b> \2
Or search:

Code:
(<b>)(.*<\/b> phrasal verb)
Replace:

Code:
\1⌂\2
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Old 01-14-2014, 08:03 AM   #6
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Nothing works... Anyway, the regex should apply to lines similar to this:

Code:
<div class="dsl_m2"><font color="blue"><b>account for something</b></font><i><font color="green"> phrasal verb</font></i></div>
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Old 01-14-2014, 09:06 AM   #7
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Quote:
Originally Posted by mobiuser View Post
The regex doesn't seem to work. I'm using notepad++.
It should work, but I know that the lookahead function has issues in Notepad++. It is the result of the RegEx library that NotePad++ uses, which is Boost. I love Notepad++, but its RegEx is full with bugs.

Last edited by Toxaris; 01-14-2014 at 09:12 AM.
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Old 01-14-2014, 09:19 AM   #8
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Which software do you suggest?
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Old 01-14-2014, 11:00 AM   #9
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I have no real alternative to be honest. I use Notepad++ myself. I avoid RegEx however in Notepad++.
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Old 01-14-2014, 11:14 AM   #10
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Ok, I've tried EditPad Lite since should have the best regex support, but the results are the same (for all the suggestions).
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Old 01-14-2014, 11:23 AM   #11
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You can also try SynWrite: http://sourceforge.net/projects/synwrite/
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Old 01-14-2014, 11:47 AM   #12
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Nice app, but no luck
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Old 01-14-2014, 12:17 PM   #13
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Quote:
Originally Posted by mobiuser View Post
Ok, I've tried EditPad Lite since should have the best regex support, but the results are the same (for all the suggestions).
That's because you initially provided not enough information about the string to look for and the replacement. For example, my suggestions worked just fine for the specific string that I assumed you were looking for.

It obviously won't work if there are other tags between the text in <b></b> tags and "phrasal verb," which you forgot to mention.

BTW, regular expressions only work if the string that you're looking for has a predictable pattern. For more information see this tutorial website.
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Old 01-14-2014, 01:28 PM   #14
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Sorry for not providing enough information, but I know very little of regular-expressions . Is there anything I can do at this point?
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Old 01-15-2014, 02:10 PM   #15
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Quote:
Originally Posted by Toxaris View Post
It should work, but I know that the lookahead function has issues in Notepad++. It is the result of the RegEx library that NotePad++ uses, which is Boost. I love Notepad++, but its RegEx is full with bugs.
i have used python plugin for notepad++ and python regular expression replace, for complex corrections in html.

i am not sure how good is python regex library?
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