Permanent link to this comic: http://xkcd.com/1313/
Image URL (for hotlinking/embedding): http://imgs.xkcd.com/comics/regex_golf.png
[[A woman sits at a laptop, leaning back over her chair to address a figure.]]
Woman: You try to matchone one group but not the other.
M | [TN]|B
matches Star Wars subtitles but not Star Trek.
[[We zoom to just show the woman, looking at her screen.]]
Woman: So I wrote a program that plays regex golf with arbitrary lists...
Figure: Uh oh...
[[We zoom back out. The figure is facepalming. The woman is typing.]]
Woman: ...but I lost my code, so I'm grepping for files that look like regex golf solvers.
[[We zoom back in.]]
... And beyond:
Woman: Really, this is all
Figure: Now you have infinite problems.
Woman: No, I had those already.
matches the last names of elected US presidents but not their opponents.}}
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