lean2/src/emacs/lean-flycheck.el

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;; Copyright (c) 2014 Microsoft Corporation. All rights reserved.
;; Released under Apache 2.0 license as described in the file LICENSE.
;;
;; Author: Soonho Kong
;;
(when lean-use-flycheck
(require 'flycheck)
(setq-local lean-lmake-name "lmake")
(setq-local lean-lmake-options "--flycheck")
(eval
`(flycheck-define-checker lean-checker-file
"A Lean syntax checker (file)."
:command (,(lean-get-executable lean-lmake-name) ,lean-lmake-options source-inplace)
:error-patterns
((error line-start "FLYCHECK_BEGIN ERROR\n"
(file-name) ":" line ":" column ": error: "
(minimal-match
(message (one-or-more (one-or-more not-newline) "\n") ))
"FLYCHECK_END" line-end)
(warning line-start "FLYCHECK_BEGIN WARNING\n"
(file-name) ":" line ":" column ": warning "
(minimal-match
(message (one-or-more (one-or-more not-newline) "\n") ))
"FLYCHECK_END" line-end))
:modes (lean-mode)
:predicate
(lambda () (and buffer-file-name
(string= "lean" (file-name-extension buffer-file-name))))))
(add-to-list 'flycheck-checkers 'lean-checker-file)
(add-hook 'lean-mode-hook '(lambda () (flycheck-mode t))))
(provide 'lean-flycheck)