• lseif
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    1 year ago

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

    i think… most languages at least

    • anton@lemmy.blahaj.zone
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      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
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        1 year ago

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