re2c/正規表現 - bambooflow Note

re2cの正規表現

• サンプル

       ws         = [ \t\v\f\r]+;
       digit      = [0-9]+;
       real       = ([+-]*[0-9]+"."[0-9]*|([0-9]*)"."[0-9]+);
       integer    = ([+-]*[0-9]+);
       ident      = [_$a-zA-Z][_$0-9a-zA-Z]*;