136 lines
3.9 KiB
EmacsLisp
136 lines
3.9 KiB
EmacsLisp
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;
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;;; ghc-check.el
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;;;
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;; Author: Kazu Yamamoto <Kazu@Mew.org>
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;; Created: Mar 9, 2014
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;;; Code:
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(require 'ghc-func)
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(defvar-local ghc-check-running nil)
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(defvar-local ghc-check-process-name nil)
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(defvar-local ghc-check-original-buffer nil)
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(defvar-local ghc-check-original-file nil)
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(defun ghc-check-get-process-name ()
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(let ((file (buffer-file-name)))
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(with-temp-buffer
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(ghc-call-process ghc-module-command nil t nil "debug" file)
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(goto-char (point-min))
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(when (re-search-forward "^Root directory: +\\(.*\\)$" nil t)
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(match-string-no-properties 1)))))
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(defun ghc-check-syntax ()
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(unless ghc-check-process-name
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(setq ghc-check-process-name (ghc-check-get-process-name)))
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(if (null ghc-check-process-name)
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(message "Can't check")
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(let* ((cbuf (current-buffer))
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(name ghc-check-process-name)
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(buf (get-buffer-create (concat " ghc-modi:" name)))
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(file (buffer-file-name))
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(cpro (get-process name)))
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(with-current-buffer buf
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(unless ghc-check-running
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(setq ghc-check-running t)
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(setq ghc-check-original-buffer cbuf)
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(setq ghc-check-original-file file)
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(erase-buffer)
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(let ((pro (ghc-check-get-process cpro name buf)))
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(process-send-string pro (concat file "\n"))))))))
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(defun ghc-check-get-process (cpro name buf)
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(cond
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((not cpro)
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(ghc-check-start-process name buf))
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((not (eq (process-status cpro) 'run))
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(delete-process cpro)
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(ghc-check-start-process name buf))
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(t cpro)))
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(defun ghc-check-start-process (name buf)
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(let ((pro (start-file-process name buf "ghc-modi")))
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(set-process-filter pro 'ghc-check-process-filter)
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(set-process-sentinel pro 'ghc-check-process-sentinel)
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(set-process-query-on-exit-flag pro nil)
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pro))
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(ghc-defstruct hilit-info file line col msg)
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(defun ghc-check-process-filter (process string)
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(with-current-buffer (process-buffer process)
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(goto-char (point-max))
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(insert string)
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(forward-line -1)
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(cond
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((looking-at "^NG$")
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(setq ghc-check-running nil)
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(message "An error happens"))
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((looking-at "^OK$")
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(goto-char (point-min))
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(let ((regex "^\\(.*\\):\\([0-9]+\\):\\([0-9]+\\): *\\(.+\\)")
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info infos)
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(while (re-search-forward regex nil t)
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(setq info (ghc-make-hilit-info
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:file (match-string 1)
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:line (string-to-number (match-string 2))
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:col (string-to-number (match-string 3))
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:msg (match-string 4)))
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(setq infos (cons info infos)))
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(setq infos (nreverse infos))
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(cond
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(infos
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(ghc-check-highlight-original-buffer ghc-check-original-buffer infos))
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(t
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(message "No changes")))
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(setq ghc-check-running nil))))))
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(defun ghc-check-process-sentinel ()
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)
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(defun ghc-check-highlight-original-buffer (buf infos)
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(message "%s" infos)
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(with-current-buffer buf
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(remove-overlays (point-min) (point-max) 'ghc-check t)
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(save-excursion
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(goto-char (point-min))
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(dolist (info infos)
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(let ((line (ghc-hilit-info-get-line info))
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(msg (ghc-hilit-info-get-msg info))
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beg end ovl)
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(goto-line line)
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(while (eq (char-after) 32) (forward-char))
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(setq beg (point))
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(forward-line)
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(setq end (1- (point)))
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(setq ovl (make-overlay beg end))
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(overlay-put ovl 'ghc-check t)
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(overlay-put ovl 'ghc-msg msg) ;; should be list
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(let ((face (if (string-match "^Error" msg)
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'ghc-face-error
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'ghc-face-warn)))
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(overlay-put ovl 'face face)))))))
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;; stolen from flymake.el
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(defface ghc-face-error
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'((((supports :underline (:style wave)))
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:underline (:style wave :color "Red1"))
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(t
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:inherit error))
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"Face used for marking error lines."
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:group 'ghc)
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(defface ghc-face-warn
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'((((supports :underline (:style wave)))
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:underline (:style wave :color "DarkOrange"))
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(t
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:inherit warning))
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"Face used for marking warning lines."
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:group 'ghc)
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(provide 'ghc-check)
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