Regular Expressions 101

\d+a digit, repeated at least once

Group 1(\.\d+)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

Group 2([Ee]\D+)?

?repeats the group contents below at most once:

Character Class[Ee]

Ethe literal E (69₁₀ / 105₈ / 45₁₆) (case sensitive)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case sensitive)

\D+any character that's not a digit, repeated at least once

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

\d+(\.\d+)?([Ee]\D+)?

New

This is just a test
where we can have multiple email addresses
which can be gil@home.com
g.echeverria@tec.mx
gil2@one.long.domain.org
Or something more elaborate
one1.two2-three3@is.this-site.real.net
brave_world@survive.com.it
And just like that there can me more formats for emails
But how can we extract those
34.76e4
875
34.43.34.676