2014-03-25 05:29:18 +00:00
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;
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;;; ghc-process.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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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defvar-local ghc-process-running nil)
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(defvar-local ghc-process-process-name nil)
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(defvar-local ghc-process-original-buffer nil)
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(defvar-local ghc-process-original-file nil)
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(defvar-local ghc-process-callback nil)
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(defvar ghc-interactive-command "ghc-modi")
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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2014-03-25 06:23:08 +00:00
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(defun ghc-get-project-root ()
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2014-03-25 05:29:18 +00:00
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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 "root" file)
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(goto-char (point-min))
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(when (looking-at "^\\(.*\\)$")
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(match-string-no-properties 1)))))
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(defun ghc-with-process (send callback)
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(unless ghc-process-process-name
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2014-03-25 06:23:08 +00:00
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(setq ghc-process-process-name (ghc-get-project-root)))
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2014-03-25 05:29:18 +00:00
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(when ghc-process-process-name
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(let* ((cbuf (current-buffer))
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(name ghc-process-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-process-running
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(setq ghc-process-running t)
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(setq ghc-process-original-buffer cbuf)
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(setq ghc-process-original-file file)
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(setq ghc-process-callback callback)
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(erase-buffer)
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(let ((pro (ghc-get-process cpro name buf)))
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(process-send-string pro (funcall send))))))))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defun ghc-get-process (cpro name buf)
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(cond
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((not cpro)
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(ghc-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-start-process name buf))
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(t cpro)))
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(defun ghc-start-process (name buf)
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(let ((pro (start-file-process name buf ghc-interactive-command)))
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(set-process-filter pro 'ghc-process-filter)
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(set-process-query-on-exit-flag pro nil)
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pro))
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(defun ghc-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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(when (looking-at "^\\(OK\\|NG\\)$")
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(goto-char (point-min))
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(funcall ghc-process-callback)
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(setq ghc-process-running nil))))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(provide 'ghc-process)
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