如何在'（'和下一个空白之间的语句中获取特定单词

Question

So I have a bunch of strings that have this basic setup TeamName (GMName - Tier) I'm trying to find a good way to get the GMName from that string.

I tried using this regex: \\(\\w*\\s but that gives me (GMName which I would then have to parse in some way to get the GMName only. Is there a regex or some Python function that I can use in a single line to get what I want?

Answer 1

You need to use look arounds if you just want it to check for surrounding strings without them getting captured into the match text. You this regex,

(?<=\()\w*\b

Here, (?<=\\() ensures, the word is preceded by literal ( and \\b ensures it is a word boundary.

Demo

Sample python code,

import re
s = 'TeamName (GMName - Tier)'
arr = re.findall(r'(?<=\()\w*\b', s)
print(arr)

Prints,

['GMName']

Answer 2

You can either use a lookbehind for the open paren, or use a capture group.

Lookbehind

>>> pat = re.compile(r"""
... (?<=\()       # asserts that a literal ( precedes the following:
... \S+           # one or more non-spaces
... """, re.X)
>>> pat.search("TeamName (GMName - Tier)").group()
"GMName"

Capture groups

>>> pat = re.compile(r"""
... \(            # a literal (
... (\S+)         # capture one or more non-space characters
... """, re.X)
>>> pat.search("TeamName (GMName - Tier)").group(1)
"GMName"