# regular expression

> sequence of characters that forms a search pattern

**Wikidata**: [Q185612](https://www.wikidata.org/wiki/Q185612)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Regular_expression)  
**Source**: https://4ort.xyz/entity/regular-expression


## References

1. Freebase Data Dumps. 2013
2. [Source](http://regexr.com/)
3. [Source](https://regexr.com)
4. [RegExr: Learn, Build, & Test RegEx](https://regexr.com)
5. Quora
6. [reddit.com: search results - regex](https://www.reddit.com/r/regex/)
7. [Source](https://golden.com/wiki/Regular_expression-GENE9)
8. National Library of Israel Names and Subjects Authority File
9. KBpedia
10. [regex · GitHub Topics · GitHub](https://github.com/topics/regex)
11. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)
12. Wikibase TDKIV