How to use Regex to select multiple line-CodePudding

I have the following string in form of HTML Text -

=09=09=09=09=09=09=09=09=09href=3D"https://web.company.net/#/set-passwor=
d?token=3DeyJ0eFtehgeRs1QiLLKDHDSiOiJIUzI1NiJ9.eyJ1dWlkIjoiZTM4ZTMwMGItNWM5=
Zi00MTg1LThhY2EtNTVkYWEwYzE1ZjIzIiwidGVybXNfYWNjZXBBDHSdndsuOIiwiaWF0IjoxNjQ=
0MzI0NDk3LCJleHAiOjE2NDQ0OTcyOTcsIm5iZiI6MTY0NDMyNDU1N30.lRetwJcg9Gf6upQYx6_=
RonwGWjAcxvkE3szhj5Akxbrk&region=3D"=09=09=09=09=09=09=09=09=09style=3D"height: 40px; v-text-anchor: middle; wi=

dth: 300px"

The following string(dynamic token) needs to be extracted-

3DeyJ0eFtehgeRs1QiLLKDHDSiOiJIUzI1NiJ9.eyJ1dWlkIjoiZTM4ZTMwMGItNWM5=
Zi00MTg1LThhY2EtNTVkYWEwYzE1ZjIzIiwidGVybXNfYWNjZXBBDHSdndsuOIiwiaWF0IjoxNjQ=
0MzI0NDk3LCJleHAiOjE2NDQ0OTcyOTcsIm5iZiI6MTY0NDMyNDU1N30.lRetwJcg9Gf6upQYx6_=
RonwGWjAcxvkE3szhj5Akxbrk

How can this be done using Regex?

Actively looking forward to some suggestions.

Thank you

CodePudding user response：

Can use MULTILINE flag with the regexp 'token=([^&] )'.

Try this:

import re

html = '''
=09=09=09=09=09=09=09=09=09href=3D"https://web.company.net/#/set-passwor=
d?token=3DeyJ0eFtehgeRs1QiLLKDHDSiOiJIUzI1NiJ9.eyJ1dWlkIjoiZTM4ZTMwMGItNWM5=
Zi00MTg1LThhY2EtNTVkYWEwYzE1ZjIzIiwidGVybXNfYWNjZXBBDHSdndsuOIiwiaWF0IjoxNjQ=
0MzI0NDk3LCJleHAiOjE2NDQ0OTcyOTcsIm5iZiI6MTY0NDMyNDU1N30.lRetwJcg9Gf6upQYx6_=
RonwGWjAcxvkE3szhj5Akxbrk&region=3D"=09=09=09=09=09=09=09=09=09style=3D"height: 40px; v-text-anchor: middle; wi=
dth: 300px"
'''

m = re.search(r'token=([^&] )', html, re.MULTILINE)
if m:
    print(m.group(1))

Output:

3DeyJ0eFtehgeRs1QiLLKDHDSiOiJIUzI1NiJ9.eyJ1dWlkIjoiZTM4ZTMwMGItNWM5=
Zi00MTg1LThhY2EtNTVkYWEwYzE1ZjIzIiwidGVybXNfYWNjZXBBDHSdndsuOIiwiaWF0IjoxNjQ=
0MzI0NDk3LCJleHAiOjE2NDQ0OTcyOTcsIm5iZiI6MTY0NDMyNDU1N30.lRetwJcg9Gf6upQYx6_=
RonwGWjAcxvkE3szhj5Akxbrk

CodePudding user response：

A variation of @CodeMonkey answer without the need of re.MULTILINE

import re

html = '''
=09=09=09=09=09=09=09=09=09href=3D"https://web.company.net/#/set-passwor=
d?token=3DeyJ0eFtehgeRs1QiLLKDHDSiOiJIUzI1NiJ9.eyJ1dWlkIjoiZTM4ZTMwMGItNWM5=
Zi00MTg1LThhY2EtNTVkYWEwYzE1ZjIzIiwidGVybXNfYWNjZXBBDHSdndsuOIiwiaWF0IjoxNjQ=
0MzI0NDk3LCJleHAiOjE2NDQ0OTcyOTcsIm5iZiI6MTY0NDMyNDU1N30.lRetwJcg9Gf6upQYx6_=
RonwGWjAcxvkE3szhj5Akxbrk&region=3D"=09=09=09=09=09=09=09=09=09style=3D"height: 40px; v-text-anchor: middle; wi=
dth: 300px"
'''

m = re.search(r'token=([.\s\S] ?(?=&))', html, re. )
if m:
    print(m.group(1))