$lexer->rule('/\s+/', function(Token $token) // skip whitespace );
$lexer->rule('/[a-z]+/', function(Token $token) echo "Word: $token->getValue()\n"; ); lexluthor github
LexLuthor is a GitHub username (and associated project) belonging to a developer who has created LexLuthor/luthor – a lightweight, rule-based lexer generator for PHP. It’s designed to help you build custom tokenizers/lexers for domain-specific languages (DSLs), configuration files, or simple programming languages. function(Token $token) // skip whitespace )