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About 1,000 results for
regular-expressions
- Page 1
Re: How do you use LLM AI tools in your daily programming workflow ?
Community Center
4 Weeks Ago
by rproffitt
… it for many things. Examples such a SQL queries and
regular
expressions
. He tells me they saved mid 5 figures USD in…
Extracting values from capturing groups in regex
Programming
Software Development
1 Month Ago
by Tom_45
…', '9') ('Collin', '', 'Collin') ('Raquel', '', 'Raquel') I'm relatively new to
regular
expressions
so be gently, but any help would be appreciated. PS…
Extracting values from a regex match
Programming
Software Development
1 Month Ago
by Tom_45
…', '9') ('Collin', '', 'Collin') ('Raquel', '', 'Raquel') I'm relatively new to
regular
expressions
so be gently, but any help would be appreciated. PS…
Re: Extracting values from capturing groups in regex
Programming
Software Development
1 Month Ago
by AndreRet
… consider using non-greedy quantifiers - [Minimal or non-greedy quantifiers](
Regular
expressions
are generally considered greedy because an expression with repetitions will…
Re: Extracting values from capturing groups in regex
Programming
Software Development
1 Month Ago
by Reverend Jim
Just process the file line by line and apply the
regular
expression to particular lines. I can't give you an expression that matches only the lines you showed me with a guarantee that in matches nothing else without seeing the entire file.
Re: Extracting values from capturing groups in regex
Programming
Software Development
1 Month Ago
by Reverend Jim
For html = '<tr align="right"><td>236</td><td>Roy</td><td>Allyson</td>' pat = '<td>(.+?)</td>' then re.split(pat,html) returns ['<tr align="right">', '236', '', 'Roy', '', 'Allyson', ''] and re.split(pat,html)[1::2] will …
Re: Extracting values from a regex match
Programming
Software Development
1 Month Ago
by Reverend Jim
The trick is to use lazy matching which matches the shortest possible string. html = '<tr align="right"><td>236</td><td>Roy</td><td>Allyson</td>' pat = '<td>(.+?)</td>' then re.split(pat,html) returns ['<tr align="right">', '236', …
Re: Extracting values from capturing groups in regex
Programming
Software Development
1 Month Ago
by Tom_45
I'm not getting the results you presented, I'm getting the whole file not just the tr tags. The tr tags I used was just a subset of the entire file.
Re: Extracting values from capturing groups in regex
Programming
Software Development
1 Month Ago
by Reverend Jim
You can either read the entire file into a list, then filter that list, or you could process it line by line and process each matching line. For example (using my file) for line in open('usblog.txt'): if '2024-01-24' in line: print(line) or text = open('usblog.txt').readlines() for line in [x for x in text if…
Re: Extracting values from a regex match
Programming
Software Development
1 Month Ago
by pritaeas
Sidenote: If you want to learn, understand and experiment with regexes I can highly recommend RegexBuddy.
Re: Extracting values from capturing groups in regex
Programming
Software Development
1 Month Ago
by Tom_45
It's a long one, but here it is. <head><title>Popular Baby Names</title> <meta name="dc.language" scheme="ISO639-2" content="eng"> <meta name="dc.creator" content="OACT"> <meta name="lead_content_manager" content="JeffK"&…
Re: Extracting values from capturing groups in regex
Programming
Software Development
1 Month Ago
by Reverend Jim
Try import re pat = '<td>(.+?)</td>' for line in open('yourfile.html'): if line.startswith('<tr align="right"><td>'): print(re.findall(pat,line)) I realized that findall is cleaner than split. You might want to have a look at [this regex online tool](https://www…
Re: Extracting values from a regex match
Programming
Software Development
1 Month Ago
by Reverend Jim
Also [autoregex](https://www.autoregex.xyz/)
Re: Extracting values from a regex match
Programming
Software Development
1 Month Ago
by AndreRet
Same question, different post - [Extracting values from capturing groups in rege](https://www.daniweb.com/programming/software-development/threads/541420/extracting-values-from-capturing-groups-in-regex)
Re: Extracting values from capturing groups in regex
Programming
Software Development
1 Month Ago
by Tom_45
Issue resolved
Re: Extracting values from a regex match
Programming
Software Development
1 Month Ago
by Tom_45
Question has been answered. The correct pattern is: matches = re.findall(r'<td>(\d+)+<\/td><td>(\w+)<\/td><td>(\w+)', file)
Regular expression beginner
Programming
Software Development
12 Years Ago
by arindam31
Regular
Expression (RE) They can be used with string operations. Using … a p.iiiigand no gbng gtrg ghgg') p.i Slash ( \ )
Regular
expressions
use the backslash character ('\') to indicate special forms or to…
Re: regular expression
Programming
Web Development
10 Years Ago
by pritaeas
Regular
expressions
are not for creating strings, but for parsing them.
Re: Replace String what is the best way
Programming
Software Development
14 Years Ago
by Tekmaven
Regular
expressions
are the way to go. Using them in C# is easy, but developing the actual
regular
expression is slightly complicated. There are… I've used in the past to help me craft
regular
expressions
, Regulazy and Regulator, both are made by Roy Osherove, and…
Re: preg_replace Help
Programming
Web Development
15 Years Ago
by digital-ether
Regular
expressions
are quite simple. Instead of matching exact characters like in … the end delimiter, you have the modifiers (flags). So a
regular
expression could be: |a| That matches just the letter a… is very powerful. Take a look at: [url]http://www.
regular
-
expressions
.info/[/url] it has a lot of information on…
Re: Java Pattern
Programming
Software Development
13 Years Ago
by Krstevski
Regular
expressions
are the same for all programming languages, the difference is …() '0123456789' [/CODE] Learn about [URL="http://www.
regular
-
expressions
.info/reference.html"]
Regular
Expression Syntax[/URL] and then you can implement…
Re: matching two consecutive identical characters in awk
Programming
Software Development
15 Years Ago
by ghostdog74
regular
expressions
are usually not needed for string manipulations. [code] # echo "abcdd" | awk 'BEGIN{FS=""}$2==$3{print "ok"}' # echo "abbdd" | awk 'BEGIN{FS=""}$2==$3{print "ok"}' ok [/code]
Re: String Help
Programming
Web Development
14 Years Ago
by EvolutionFallen
Regular
Expressions
is what you're looking for. As ShawnCplus said, preg_match() is the function you'll want to use. You might want to do some reading on
regular
expressions
. I used this tutorial a while ago: [url]http://www.
regular
-
expressions
.info/tutorial.html[/url]
Re: preq_match
Programming
Web Development
12 Years Ago
by blocblue
Regular
expressions
can be tough to understand. Taking the example you've …, flag. The [B].[/B] character has a special meaning in
regular
expressions
, in that it matches any character. To use this as… [B]-[/B] character is used to specify a range in
regular
expressions
, e.g. 0-3 or a-z. This again is…
Re: Search Text to Create Links
Programming
Web Development
16 Years Ago
by cmhampton
Regular
Expressions
should do the trick for this. [code=c#] //Find the …'s still pretty efficient. Here's a great resource for
regular
expressions
: [url]http://regexlib.com/Default.aspx[/url]
Re: How to call php validation function using ajax
Programming
Web Development
3 Years Ago
by deepaksh
Regular
expressions
(REGEX) are the easiest way to verify the full name format in PHP. You can easily verify the first name and last name using
regular
expressions
in PHP.
Re: Searching a Text Field in a JList
Programming
Software Development
16 Years Ago
by peter_budo
Regular
expression is answer to your problem. Ofcourse you can do it with substrings, but it is dirty work. Read up Sun tutorial on
regular
expressions
[URL="http://java.sun.com/docs/books/tutorial/essential/regex/"]here[/URL]
Re: RegExp.replace Not Working
Programming
Web Development
18 Years Ago
by tgreer
Regular
Expressions
have always been very difficult for me, for some reason. I'd be happy to try to help when I have a bit more time later this week. Can you post a very simple "test harness" version of your HTML here?
Re: how to read csv file without using StringTokenizer
Programming
Software Development
16 Years Ago
by Ezzaral
Regular
expressions
can be tricky to learn, but they are very powerful …
Re: Identifying one set of strings from within a longer string
Programming
Software Development
16 Years Ago
by Ramy Mahrous
Regular
expressions
would help System.Text.RegularExpressions;
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