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+;; This Elisp snippet adds a regexp parser for the format of Anomaly
+;; backtraces (coqc -bt ...), to the error parser of the Compilation
+;; mode (C-c C-c: "Compile command: ..."). Once the
+;; coq-change-error-alist-for-backtraces function has run, file
+;; locations in traces are recognized and can be jumped from easily
+;; from the *compilation* buffer.
+
+;; You can just copy everything below to your .emacs and this will be
+;; enabled from any compilation command launched from an OCaml file.
+
+(defun coq-change-error-alist-for-backtraces ()
+ "Hook to change the compilation-error-regexp-alist variable, to
+ search the coq backtraces for error locations"
+ (interactive)
+ (add-to-list
+ 'compilation-error-regexp-alist-alist
+ '(coq-backtrace
+ "^ *\\(?:raise\\|frame\\) @ file \\(\"?\\)\\([^,\" \n\t<>]+\\)\\1,\
+ lines? \\([0-9]+\\)-?\\([0-9]+\\)?\\(?:$\\|,\
+ \\(?: characters? \\([0-9]+\\)-?\\([0-9]+\\)?:?\\)?\\)"
+ 2 (3 . 4) (5 . 6)))
+ (add-to-list 'compilation-error-regexp-alist 'coq-backtrace))
+
+;; this Anomaly parser should be available when one is hacking
+;; on the *OCaml* code of Coq (adding bugs), so we enable it
+;; through the OCaml mode hooks.
+(add-hook 'caml-mode-hook 'coq-change-error-alist-for-backtraces)
+(add-hook 'tuareg-mode-hook 'coq-change-error-alist-for-backtraces)