Regular Expressions 101

Pro

\ban ASCII word boundary

Group 1(buy|electronic)

1st Alternativebuy

buythe literal text buy (case sensitive)

2nd Alternativeelectronic

electronicthe literal text electronic (case sensitive)

Non-Capturing Group(?:[^\w\n]+\w+){1,7}?

{1,7}?repeats the group contents below between 1 and 7 times:

Negated Character Class[^\w\n]+

+matches at least one character outside the set below:

\wany word character

\na line-feed (newline) character (ASCII 10)

\w+any word character, repeated at least once

Negated Character Class[^\w\n]+

+matches at least one character outside the set below:

\wany word character

\na line-feed (newline) character (ASCII 10)

Negative Lookahead(?!\1)

\1the text saved by group 1

Non-Capturing Group(?:buy|electronic)

1st Alternativebuy

buythe literal text buy (case sensitive)

2nd Alternativeelectronic

electronicthe literal text electronic (case sensitive)

\ban ASCII word boundary

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.

25 tokens

\b(buy|electronic)(?:[^\w\n]+\w+){1,7}?[^\w\n]+(?!\1)(?:buy|electronic)\b

New

I will buy a car
I will buy a horse
I will buy an electronic device
I will buy chip electronic
a device electronic will buy by my uncle