lex-parser/tests/lex/bnf.lex.json

A parser for lexical grammars used by jison

{
    "rules": [
      ["\\s+", "/* skip whitespace */"],
      ["\\/\\*[^*]*\\*", "return yy.lexComment(this);"],
      ["[a-zA-Z][a-zA-Z0-9_-]*", "return 'ID';"],
      ["\"[^\"]+\"", "yytext = yytext.substr(1, yyleng-2); return 'STRING';"],
      ["'[^']+'", "yytext = yytext.substr(1, yyleng-2); return 'STRING';"],
      [":", "return ':';"],
      [";", "return ';';"],
      ["\\|", "return '|';"],
      ["%%", "return '%%';"],
      ["%prec\\b", "return 'PREC';"],
      ["%start\\b", "return 'START';"],
      ["%left\\b", "return 'LEFT';"],
      ["%right\\b", "return 'RIGHT';"],
      ["%nonassoc\\b", "return 'NONASSOC';"],
      ["%[a-zA-Z]+[^\\n]*", "/* ignore unrecognized decl */"],
      ["\\{\\{[^}]*\\}", "return yy.lexAction(this);"],
      ["\\{[^}]*\\}", "yytext = yytext.substr(1, yyleng-2); return 'ACTION';"],
      ["<[^>]*>", "yytext = yytext.substr(1, yyleng-2); return 'ACTION';"],
      [".", "/* ignore bad characters */"],
      ["$", "return 'EOF';"]
    ]
}