regex-generator VS RegExr

Whilst Regular Expressions are undeniably powerful --- virtually NOBODY knows how to set up Regular Expressions!  There are a number of tools that help you build / test regular expressions, such as https://regex-generator.olafneumann.org/  or https://retool.com/utilities/regex-generator (no responsibilities accepted for the use of any  of these tools!)

Ho did you arrive at the regex? I usually use a website to , such as https://regex101.com/, https://regexr.com/, https://regex-generator.olafneumann.org/ in combination of each other, as some explain better than the other.

Is there a regex generator for Reddit's Automod or Python? I've already tried Googling "regex generator python" but I only came up with https://regex-generator.olafneumann.org/, https://pythex.org/, https://regex101.com/, and a whole bunch of build/testers. Olaf Neumann's generator seemed the most promising, but I couldn't get it to work because I didn't know how to separate each phrase, i.e. "you're dumb," "your dumb," "youre dumb," and "you are dumb." I was able to make sense of https://www.javainuse.com/rexgenerator but it's only for java.

Shout out to https://regex-generator.olafneumann.org/

Here's some more websites that might help if you're interested: https://regexr.com/ - Lets you test the regex https://regex-generator.olafneumann.org/ - Can help you generate regex https://en.wikipedia.org/wiki/Regular_expression#Basic_concepts - Basic syntax

https://regex-generator.olafneumann.org/ (type in any text and it will suggest a matching regex)

I really like this tool to generate regex. It may not generate exactly what you need, but it'll get you on the right track. Often times, it does what I need.

Nah, just use a RegEx generator and then the REGEX(text, regex_text) in a validation rule and you are done.

This is a special case of the general problem of program synthesis[1][2][3][4], where the search space of possible programs are all regex strings and the seed driving the synthesis is Input-Output examples.

There's research [5][6] as well as practical tools [7][8][9].

[1] https://en.wikipedia.org/wiki/Program_synthesis

[2] https://www.microsoft.com/en-us/research/project/program-syn...

[3] https://dl.acm.org/doi/10.1145/1836089.1836091

[4] https://royalsocietypublishing.org/doi/10.1098/rsta.2015.040...

[5] https://cs.stanford.edu/~minalee/pdf/gpce2016-alpharegex.pdf

[6] https://www.researchgate.net/publication/261794574_Automatic...

[7] https://regex-generator.olafneumann.org/

[8] http://regex.inginf.units.it/extract/

[9] https://stackoverflow.com/questions/6219790/need-a-regex-too...

When thinking about how I might compare an arrangement to the contiguous group of damaged springs, I used regexr.com to experiment with very specific regexs that used the numbers.

There are plenty of online regex tools to test and experiment with regex patterns. Some popular ones include RegExr, RegEx101, and RegexPlanet.

Using regexr.com it at least appears to work as expected.

If you are going to use RE's, use something like https://regexr.com/ to double check that they're doing what you want. I was suspicious of your 'cols = re.findall(r'\d+ .....', i)' line, and indeed it does miss some columns. You should rethink your column detection, and either not use REs or learn how to use capture groups and \w. There would then be no reason to use yet another RE in your column iterator to extract the numbers which you've already detected.

First time posting here, let me know if I need to edit post to conform to any rules. My issue is that I'm trying to match regex pattern to separate out the number of cubes drawn and its color but my Matcher object seems to not be returning any matches so it's throwing a no match found exception when I try to call digitMatcher.group(). I have tested my regex pattern on sites like regexr and it seems to pass there but it's not working for some reason here. I use the same type of regex on day one and it work there so I'm not sure where my regex pattern is failing here. I'm talking about specifically in my isGameValid() method where I create a matcher base on a pattern I made above. Through debugging I know that I separated the string color pairing correctly and that my Matcher object has the correct regex pattern, it's just not matching for some reason. Any help would be appreciated. Code below:

Regexr has been an invaluable tool as a beginner.

RegExr simplifies working with regular expressions. This online tool provides a visual interface for building and testing regex patterns in real-time, making regex less intimidating.

Ho did you arrive at the regex? I usually use a website to , such as https://regex101.com/, https://regexr.com/, https://regex-generator.olafneumann.org/ in combination of each other, as some explain better than the other.

I pulled this into regexr.com and it yielded the same results except it removed :41: