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I've below code

(add-to-list 'compilation-error-regexp-alist 'kbd)
(add-to-list 'compilation-error-regexp-alist-alist
             '(kbd "^kmonad: Parse error at \\([0-9]+\\):\\([0-9]+\\):" 2 3))

And I want to parse

kmonad: Parse error at 36:1:
   |
36 | jdfkj
   | ^

But it doesn't match correctly in compilation buffer, I can't go to the line and column of the error, instead it points to first column of first line, and matches first regexp block as line number. But regexp is correct re-build proof

1 Answer 1

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The LINE and COLUMN entries (2 and 3 in your code) refers to the subgroup of the regexp. Your regexp only contains two subgroups, so they should be 1 and 2.

In addition, the first entry after the regexp is the filename (or nil), so it should be (REGEXP nil 1 2).

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  • I tried (kbd "^kmonad: Parse error at \\([0-9]+\\):\\([0-9]+\\):" 1 2) but it doesn't work either. From their faces, I can say that 36 parsed as file name and 1 parsed as line number. paste.pics/4738cc4c3a70b7eb21e6189e146951ee Feb 12, 2022 at 19:47
  • Ah, the first number is the file name (I missed that). Since you don't have a file name to match, try (REGEXP nil 1 2). Feb 12, 2022 at 21:14
  • Thank you so much, it drove me insane! Feb 12, 2022 at 21:44
  • Glad I could help! Feb 12, 2022 at 21:54

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