regex 559 python 210 javascript 197 regexp 172 regular-expressions 132 python3 80 java 70 nodejs 51 pandas 49 typescript 44 nfa 39 regex-pattern 38 parser 38 html 37 dfa 36 validation 35 php 33 nlp 32 css 30 regular-expression-engine 30 json 28 html5 28 automata 27 swift 26 c 25 golang 25 string 24 cpp 24 library 24 regex-engine 24 pattern-matching 24 numpy 23 matplotlib 22 node 22 parsing 22 machine-learning 20 filter 20 bash 20 sql 18 beautifulsoup 18 search 18 replace 17 beautifulsoup4 17 glob 17 rust 17 match 17 cli 17 text-processing 17 js 17 grep 17 compiler 17 css3 16 webscraping 16 regexes 16 react 16 csharp 16 finite-state-machine 16 go 16 natural-language-processing 16 nltk 16 functional-programming 15 utility 15 mysql 15 pcre 14 string-matching 14 data-structures 14 seaborn 14 form-validation 14 string-manipulation 14 data-science 13 web-scraping 13 lexical-analysis 13 pattern 13 linux 13 command-line-tool 13 regular 13 haskell 12 grammar 12 nlp-machine-learning 12 functions 12 tokenizer 12 es6 12 ruby 12 formal-languages 12 requests 12 re 12 tutorial 11 object-oriented-programming 11 validator 11 api 11 android 11 hacktoberfest 11 text 11 database 11 cheatsheet 10 flask 10 javafx 10 expression 10 lexer 10 automaton 10