Programmer Humor

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what debugging regex feels like (lemmy.ml)

submitted 1 week ago by [email protected] to c/[email protected]

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[–] [email protected] 2 points 1 week ago

I think he found the Road Runner.

[–] [email protected] 2 points 1 week ago

Ffs just rewrite it

[–] [email protected] 2 points 1 week ago* (last edited 1 week ago)

Elisp has a nice notation for maintainably composing regexes like any other programming expression. Only language I've seen offer that. So instead of "/\\*\\(?:[^*]\\|\\*[^/]\\)*\\*+/", the regular expression to match C block comments could be expressed (with inline comments)

(rx "/*"                          ; Initial /*
    (zero-or-more
     (or (not (any "*"))          ;  Either non-*,
         (seq "*"                 ;  or * followed by
              (not (any "/")))))  ;  non-/
    (one-or-more "*")             ; At least one star,
    "/")                          ; and the final /

[–] [email protected] 1 points 1 week ago (1 children)

This would honestly be a lot easier

[–] [email protected] 2 points 1 week ago

I don't know any hieroglyphs, but I do know cuneiform. Would rather read cuneiform than regex!

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