Regular Expressions 101

Explanation

Pro

^start of line

Positive Lookahead(?=.*\bfoo\b)

.*any character (except for line terminators), repeated any number of times

\ban ASCII word boundary

foothe literal text foo (case sensitive)

\ban ASCII word boundary

Positive Lookahead(?=.*\bbar\b)

.*any character (except for line terminators), repeated any number of times

\ban ASCII word boundary

barthe literal text bar (case sensitive)

\ban ASCII word boundary

Group 1(.*)

.*any character (except for line terminators), repeated any number of times

$end of line

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

^(?=.*\bfoo\b)(?=.*\bbar\b)(.*)$

foo xxx bar   z
bar foo xxx bar   z
bar kljsdflksjdfndm,d, sdflksnd fdfln foo
sldfjs,dnf bar akldjsakld
kljass fds fldsk fsdmlksd foooooo barrrrr kljasflksa

foo bar
bar foo
foobar
barfoo

Y => foo xxx bar   z

Y => yy bar z foo xxx

N => aa foobb bar

N => xx bar xfoo

Extraction

foo xxx bar   z
bar foo xxx bar   z
bar kljsdflksjdfndm,d, sdflksnd fdfln foo
sldfjs,dnf bar akldjsakld
kljass fds fldsk fsdmlksd foooooo barrrrr kljasflksa

foo bar
bar foo
foobar
barfoo

Y => foo xxx bar   z

Y => yy bar z foo xxx

N => aa foobb bar

N => xx bar xfoo