Regular Expressions 101

Pro

\ban ASCII word boundary

Group verb(?'verb'build|make|implementing)

1st Alternativebuild

buildthe literal text build (case insensitive)

2nd Alternativemake

makethe literal text make (case insensitive)

3rd Alternativeimplementing

implementingthe literal text implementing (case insensitive)

Group build(?'build'.+?(?!build|make|implementing))

.+?any character (except for line terminators), repeated at least once

Negative Lookahead(?!build|make|implementing)

1st Alternativebuild

buildthe literal text build (case insensitive)

2nd Alternativemake

makethe literal text make (case insensitive)

3rd Alternativeimplementing

implementingthe literal text implementing (case insensitive)

Positive Lookahead(?=\bin\b|\bon\b)

1st Alternative\bin\b

\ban ASCII word boundary

inthe literal text in (case insensitive)

\ban ASCII word boundary

2nd Alternative\bon\b

\ban ASCII word boundary

onthe literal text on (case insensitive)

\ban ASCII word boundary

Non-Capturing Group(?:build|make|implementing)??

??repeats the group contents below at most once:

1st Alternativebuild

buildthe literal text build (case insensitive)

2nd Alternativemake

makethe literal text make (case insensitive)

3rd Alternativeimplementing

implementingthe literal text implementing (case insensitive)

Global pattern flags

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

x modifier: extended. Ignores unescaped whitespace and comments outside character classes

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

\b(?'verb'build|make|implementing)
(?'build'.+?(?!build|make|implementing)) 
(?=\bin\b|\bon\b)
(?:build|make|implementing)??

New

Projects I've built & Plan to build. HackMatch.io (May 2020 onward), As of October 2020, I intend to start implementing "Natural Language Processing" algorithms in PHP when I have time. I'll then use PHP to upload the results to big data tech (e.g. BigQuery) to create some data visualizations.