• lseif
      8·
      1 year ago

      /^[a-zA-Z_]\w*$/

      i think… most languages at least

      • anton@lemmy.blahaj.zone
        3·
        1 year ago

        That’s variables and keyword.

        If you have a regex for a languages keywords you can substract as they are closed under that operation.

        • lseif
          2·
          1 year ago

          good point. some languages (like rust) also support r# prefix to use a keyword as a variable also