889

what debugging regex feels like (lemmy.ml)

submitted 1 week ago by cm0002@lemmy.world to c/programmer_humor@programming.dev

73 comments fedilink hide all child comments

(page 2) 23 comments

sorted by: hot top controversial new old

[-] Prime_Minister_Keyes@lemm.ee 3 points 1 week ago

awk-ward

[-] disguy_ovahea@lemmy.world 2 points 1 week ago

I think he found the Road Runner.

[-] lmmarsano@lemmynsfw.com 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 /