Regular expression matching a multiline block of text

| | | | | | | | | | | |

👻 Check our latest review to choose the best laptop for Machine Learning engineers and Deep learning tasks!

I"m having a bit of trouble getting a Python regex to work when matching against text that spans multiple lines. The example text is (" " is a newline)

some Varying TEXT



DSJFKDAFJKDAFJDSAKFJADSFLKDLAFKDSAF

[more of the above, ending with a newline]

[yep, there is a variable number of lines here]



(repeat the above a few hundred times).

I"d like to capture two things: the "some_Varying_TEXT" part, and all of the lines of uppercase text that comes two lines below it in one capture (i can strip out the newline characters later). I"ve tried with a few approaches:

re.compile(r"^>(w+)$$([.$]+)^$", re.MULTILINE) # try to capture both parts
re.compile(r"(^[^>][ws]+)$", re.MULTILINE|re.DOTALL) # just textlines

and a lot of variations hereof with no luck. The last one seems to match the lines of text one by one, which is not what I really want. I can catch the first part, no problem, but I can"t seem to catch the 4-5 lines of uppercase text. I"d like match.group(1) to be some_Varying_Text and group(2) to be line1+line2+line3+etc until the empty line is encountered.

If anyone"s curious, its supposed to be a sequence of aminoacids that make up a protein.

👻 Read also: what is the best laptop for engineering students?

We hope this article has helped you to resolve the problem. Apart from Regular expression matching a multiline block of text, check other ast Python module-related topics.

Want to excel in Python? See our review of the best Python online courses 2023. If you are interested in Data Science, check also how to learn programming in R.

By the way, this material is also available in other languages:



Xu Danburry

Abu Dhabi | 2023-03-22

Maybe there are another answers? What Regular expression matching a multiline block of text exactly means?. Will use it in my bachelor thesis

Chen Galleotti

Vigrinia | 2023-03-22

Maybe there are another answers? What Regular expression matching a multiline block of text exactly means?. Will get back tomorrow with feedback

Jan Sikorski

Warsaw | 2023-03-22

re Python module is always a bit confusing 😭 Regular expression matching a multiline block of text is not the only problem I encountered. Will use it in my bachelor thesis

Shop

Gifts for programmers

Learn programming in R: courses

$FREE
Gifts for programmers

Best Python online courses for 2022

$FREE
Gifts for programmers

Best laptop for Fortnite

$399+
Gifts for programmers

Best laptop for Excel

$
Gifts for programmers

Best laptop for Solidworks

$399+
Gifts for programmers

Best laptop for Roblox

$399+
Gifts for programmers

Best computer for crypto mining

$499+
Gifts for programmers

Best laptop for Sims 4

$

Latest questions

PythonStackOverflow

Common xlabel/ylabel for matplotlib subplots

1947 answers

PythonStackOverflow

Check if one list is a subset of another in Python

1173 answers

PythonStackOverflow

How to specify multiple return types using type-hints

1002 answers

PythonStackOverflow

Printing words vertically in Python

909 answers

PythonStackOverflow

Python Extract words from a given string

798 answers

PythonStackOverflow

Why do I get "Pickle - EOFError: Ran out of input" reading an empty file?

606 answers

PythonStackOverflow

Python os.path.join () method

384 answers

PythonStackOverflow

Flake8: Ignore specific warning for entire file

360 answers

News


Wiki

Python | How to copy data from one Excel sheet to another

Common xlabel/ylabel for matplotlib subplots

Check if one list is a subset of another in Python

How to specify multiple return types using type-hints

Printing words vertically in Python

Python Extract words from a given string

Cyclic redundancy check in Python

Finding mean, median, mode in Python without libraries

Python add suffix / add prefix to strings in a list

Why do I get "Pickle - EOFError: Ran out of input" reading an empty file?

Python - Move item to the end of the list

Python - Print list vertically