Regular Expressions 101

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"
\.|!|\?
"
gm
1st Alternative
\.
\. matches the character . with index 4610 (2E16 or 568) literally (case sensitive)
2nd Alternative
!
! matches the character ! with index 3310 (2116 or 418) literally (case sensitive)
3rd Alternative
\?
\? matches the character ? with index 6310 (3F16 or 778) literally (case sensitive)
Global pattern flags
g modifier: global. All matches (don't return after first match)
m modifier: multi line. Causes ^ and $ to match the begin/end of each line (not only begin/end of string)
Your regular expression does not match the subject string.

Regular Expression
No Match

r"
"
gm

Test String

Substitution

Processing...