regex-search | Chrome extension that allows you to search the page | Browser Plugin library

I am trying to search through a text file for and match part (or all) of the text on two separate lines. I need to return the line number (within the text file) of the matching string (the first line).

An example text file could be:

This is some text on the first line
Here is some more or the second line
This third line has more text.

If I tried to find the following string "second line This third line" it would return a line number of 2 (or really 1 if 0 is the first line).

I have looked at many similar examples and it seems that I should use the re package, however I cannot workout how to return the line number (either Python - Find line number from text file, Python regex: Search across multilines, re.search Multiple lines Python

This code finds the string across multiple lines

I'd like to search a string and wrap hashtags with spans.

I found a great answer here.

var repl = some_string.replace(/(^|\W)(#[a-z\d][\w-]*)/ig, '$1$2');

But I'd like to update it to fit my needs. I have some tags that have spaces in them that wont work with the regex there. I know that it's not technically a hashtag if they have spaces but that's the data I have to work with.

For example:

text text text text #tag1 #tag2 tag2secondWord #tag3 / withSlash #tag4 #tag5

will give:

text text text text #tag1 #tag2 tag2secondWord #tag3 / withSlash #tag4 #tag5

and I would want:

text text text text #tag1 #tag2 tag2secondWord #tag3 / withSlash #tag4 #tag5

I've tried to come up with the answer on my own but I'm not very comfortable with regex.

I posted this question earlier.

But that wasn't quite the end of it. All the rules that applied there still apply.

So the strings:

• "%ABC%" would yield ABC as a result (capture stuff between percent signs)
• as would "$ABC." (capture stuff after $, giving up when another dollar or dot appears)
• "$ABC$XYZ" would too, and also give XYZ as a result.

To add a bit more to this:

• "${ABC}" should yield ABC too. (ignore curly braces if present - non capture chars perhaps?).
• if you have two successive dollar signs, such as "$$EFG", or "$${EFG}",
  that should not appear in a regex result. (This is where either numbered or named back- references come into play - and the reason I contemplated them as non-capture groups). As I understand it, a group becomes a non-capture group with this syntax (?:).

1) Can I say the % or $ is a non-capture group and reference that by number? Or do only capture groups get allocated numbers?

2) What is the order of the numbering, if you have ((A) (B) (C)). Is the outer group 1, A 2, B 3 C 4?

I have been look at named groups. Saw the syntax mentioned here

(?capturing text) to define a named group "name"

\k to backreference a named group "name"

3) Not sure if a non-capture group can be named in Java? Can someone elucidate?

• More info here on non capture groups.
• More info here on lookbehinds
• Similar answer to a question here, but didn't quite get me what I wanted. Not sure if there is a back-reference issue in Java.
• Similar question here. But could not get my head around the working version to apply to this.

I have used the exact same Java I had in my original question, except for:

I am trying to use where operator in reactiveMongo to implement Full Text Search for Numeric and Text field using same API for both. But I am unable to get the correct syntax for doing it in reactive mongo.

I have followed mongoDocument "https://www.tutorialspoint.com/mongodb-regex-search-on-integer-value" to search text and Integer using where operator.But unable to implement in reactiveMongo.

I use python 3.7.1 (default, Dec 14 2018, 19:28:38), and pymongo 3.7.2.

In mongodb this works:

Not entirely sure if I've worded that correctly, but here's what I'm trying to do.

I have a file which I typically open in a GUI hex editor, make a few modifications, then save and exit. I've been looking to figure out how to automate this process entirely with Python. I can't seem to get my regex search pattern correct, hopefully somebody can take a moment to see why not?

The only way I've found to select variables by a wildcard is to loop all variables and test match. For example

"TEXT 

TEST1

Here i am trying to capture the last

tag until

How do you start from the end from where

that contains "TEST2" instead of "TEST1"? I am running into this problem because the first match (going forwards) contains the match I am looking for, rather than being a separate match.

I know I can grab the index of the

, but this seems inefficient. I also know RegEx in JavaScript does not allow you to do search from end of string based on this answer (javascript regex search from end of string to begining) , so just posting because I am unaware of more optimal solutions.

I know that there are a bunch of other similar questions to this, but I have built off other answers with no success. I've dug here, here, here, here, and here but this question is closest to what I'm trying to do, however it's in php and I'm using python3

My goal is to extract a substring from a body text. The body is formatted: