How do I combine multiple python regex arguments? [duplicate]

Question

I need to filter out the following things from a list:

^[^\w ]$

'^\n( )*$' (\n at the beginning followed by spaces)

'^\n( )*\n$' (\n at both ends with spaces)

'^[]$' (space alone)

how can I combine them into a single expression?

use or operator |. plus, space alone is simply ^ $. Make sure you don't mean ^\s$ which is any whitespace character — Tomerikoo
– Tomerikoo, Commented Jun 22, 2019 at 13:50

Ghassen · Accepted Answer · 2019-06-22 13:52:36Z

1

try this :

r1 ='^[^\w ]'
r2 ='^\n( )*'
r3= '^\n( )*\n'
r4 = '^\n( )*\n'
string="(\n at the beginning followed by spaces)"
generic_re = re.compile("(%s|%s|%s|%s)" % (r1, r2, r3, r4)).findall(string)

edited Jun 22, 2019 at 13:52

answered Jun 22, 2019 at 13:47

Ghassen

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