Python正则表达式查找器

Question

I have question about re, I tried to look answer on re documentary but I think I am to newbie for this.

I have string like this

string = "id=186 s_id=0  channel_name=[cspacer0]---BlaBla--- number=2"

I want to retrive all result after '=' so I used

re.finditer("=[\w]*", string)

My result was as follow

• 186
• 0
• empty space <-- there should be a [cspacer0]--BlaBla--
• 2

How should my pattern look to get the channel_name as well?

Answer 1

The \\w token only matches word characters, to allow metacharacters I would use \\S (any non-white space character) instead. Also, instead of finditer you can use findall for this task:

>>> import re
>>> s = 'id=186 s_id=0  channel_name=[cspacer0]---BlaBla--- number=2'
>>> re.findall(r'=(\S+)', s)
['186', '0', '[cspacer0]---BlaBla---', '2']

EDIT

The orginal string looks like this, I want to get everything starting with = skip =ok and idx=0

>>> s = 'error idx=0 msg=ok id=186 s_id=0 channel_name=[cspacer0]---BlaBla--- number=2'
>>> re.findall(r'(?<!idx)=(?!ok)(\S+)', s)
['186', '0', '[cspacer0]---BlaBla---', '2']