Skip to main content

How would I use a regular expression to match a string with or without parentheses at the end in Python3

I've never used regular expressions but know a little bit of the syntax after reading a bit on the python website.

I'm trying to write a regular expression that would match to entries in a text document. Each entry is on a newline.

For example here's a portion of the document I'm searching:

ABSOLVE  AH0 B Z AA1 L V
ABSOLVE(1)  AE0 B Z AA1 L V
ABSOLVED  AH0 B Z AA1 L V D
ABSOLVED(1)  AE0 B Z AA1 L V D
ABSOLVES  AH0 B Z AA1 L V Z
ABSOLVES(1)  AE0 B Z AA1 L V Z

if I had the string 'ABSOLVE' that I'm searching the document for I want to find 'ABSOLVE', 'ABSOLVE(1)', but NOT 'ABSOLVED' or anything else listed. Each line in this text document has a word followed by 2 spaces then some other data that should be collected after a match is found.

I'm just not sure if I should use $ or \b flags in an re or what. My idea was to use something like

re.sub(r'([A-Z])(.*?)(  )', r'\1\3', text)

Then just search from there. But this seems really inefficient considering I have a huge file (>100K lines). Is there a better way to use regex in this case? would I want to use re.sub() to strip the parentheses or re.search() here? It's a really big file I'm searching. Is there an expression I can use to collect the data after match until it hits a newline? I'd really appreciate any help here and just some advice for using regular expressions. Thanks



source https://stackoverflow.com/questions/71164672/how-would-i-use-a-regular-expression-to-match-a-string-with-or-without-parenthes

Comments

Popular posts from this blog

How to show number of registered users in Laravel based on usertype?

i'm trying to display data from the database in the admin dashboard i used this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count(); echo $users; ?> and i have successfully get the correct data from the database but what if i want to display a specific data for example in this user table there is "usertype" that specify if the user is normal user or admin i want to user the same code above but to display a specific usertype i tried this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count()->WHERE usertype =admin; echo $users; ?> but it didn't work, what am i doing wrong? source https://stackoverflow.com/questions/68199726/how-to-show-number-of-registered-users-in-laravel-based-on-usertype

Why is my reports service not connecting?

I am trying to pull some data from a Postgres database using Node.js and node-postures but I can't figure out why my service isn't connecting. my routes/index.js file: const express = require('express'); const router = express.Router(); const ordersCountController = require('../controllers/ordersCountController'); const ordersController = require('../controllers/ordersController'); const weeklyReportsController = require('../controllers/weeklyReportsController'); router.get('/orders_count', ordersCountController); router.get('/orders', ordersController); router.get('/weekly_reports', weeklyReportsController); module.exports = router; My controllers/weeklyReportsController.js file: const weeklyReportsService = require('../services/weeklyReportsService'); const weeklyReportsController = async (req, res) => { try { const data = await weeklyReportsService; res.json({data}) console...

Confusion between commands.Bot and discord.Client | Which one should I use?

Whenever you look at YouTube tutorials or code from this website there is a real variation. Some developers use client = discord.Client(intents=intents) while the others use bot = commands.Bot(command_prefix="something", intents=intents) . Now I know slightly about the difference but I get errors from different places from my code when I use either of them and its confusing. Especially since there has a few changes over the years in discord.py it is hard to find the real difference. I tried sticking to discord.Client then I found that there are more features in commands.Bot . Then I found errors when using commands.Bot . An example of this is: When I try to use commands.Bot client = commands.Bot(command_prefix=">",intents=intents) async def load(): for filename in os.listdir("./Cogs"): if filename.endswith(".py"): client.load_extension(f"Cogs.{filename[:-3]}") The above doesnt giveany response from my Cogs ...