Regular Expression


# REs
A regex specifies a [Regular Language](https://texonom.com/regular-language-f3e86ff9669c45e6b32d63953fd6165b) 
### Regular Expression Notion
|Title|
|:-:|
|[Regex Set](https://texonom.com/regex-set-ac59921123d74a7195af3702855a368d)|
|[Regular Language](https://texonom.com/regular-language-f3e86ff9669c45e6b32d63953fd6165b)|
|[Regex Grammar](https://texonom.com/regex-grammar-29c7faf59da84e039740356da1dd5cf4)|



### Regular Expression Usages
|Title|
|:-:|
|[Rulex](https://texonom.com/rulex-cd9030e8821e4bc9853fc279b7b2d4a5)|
|[Melody Lang](https://texonom.com/melody-lang-215131e1924e447d95b3ec7256f71b65)|



### Test
> [regex101: build, test, and debug regex](https://regex101.com/)

### English to RegEx
> [Untitled](https://www.autoregex.xyz/)






