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-;;; flymakemsg.el --- Show flymake compile errors in echo area
-;;
-;; Author: Lennart Borgman (lennart O borgman A gmail O com)
-;; Created: 2009-11-21 Sat
-;; Version: 0.1
-;; Last-Updated: 2009-11-21 Sat
-;; URL:
-;; Keywords:
-;; Compatibility:
-;;
-;; Features that might be required by this library:
-;;
- ;; `backquote', `bytecomp'.
-;;
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;
-;;; Commentary:
-;;
-;; Show flymake error messages in minibuffer when point is on a
-;; flymake error overlay.
-;;
-;; To use it just load this file. Put this in .emacs:
-;;
-;; (require 'flymakemsg)
-;;
-;; This file run `defadvice' on some functions in `flymake-mode'.
-;; This code started from an idea in a paste.
-;;
-;; Note: This code breaks Emacs conventions since it does the
-;; defadvising when you just loads this file.
-;;
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;
-;;; Change log:
-;;
-;;
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;
-;; This program is free software; you can redistribute it and/or
-;; modify it under the terms of the GNU General Public License as
-;; published by the Free Software Foundation; either version 3, or
-;; (at your option) any later version.
-;;
-;; This program is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-;; General Public License for more details.
-;;
-;; You should have received a copy of the GNU General Public License
-;; along with this program; see the file COPYING. If not, write to
-;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth
-;; Floor, Boston, MA 02110-1301, USA.
-;;
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;
-;;; Code:
-
-(eval-when-compile (require 'flymake))
-
-(defun flymakemsg-show-err-at-point ()
- "If point is on a flymake error, show it in echo area.
-Protected to run in timers and hooks."
- (condition-case err
- (flymakemsg-show-err-at-point-1)
- (error (message "%s" err))))
-
-(defvar flymakemsg-last-errovl nil)
-
-(defun flymakemsg-show-err-at-point-1 ()
- "If point is on a flymake error, show it in echo area."
- (interactive)
- (when flymake-mode
- (let ((flyovl (flymakemsg-get-errovl (point))))
- (unless (eq flyovl flymakemsg-last-errovl)
- (setq flymakemsg-last-errovl flyovl)
- (when flyovl
- (message "%s" (propertize
- (overlay-get flyovl 'help-echo)
- 'face 'flymake-errline)))))))
-
-(defun flymakemsg-get-errovl (POS)
- "Get flymake error overlay at POS."
- (catch 'errovl
- (dolist (ovl (overlays-at POS))
- (when (eq 'flymake-errline (overlay-get ovl 'face))
- (throw 'errovl ovl)))))
-
-(defadvice flymake-mode (after
- flymakemsg-ad-flymake-mode
- activate compile)
- "Turn on showing of flymake errors then point is on them.
-This shows the error in the echo area."
- (if flymake-mode
- nil ;;(add-hook 'post-command-hook 'flymakemsg-post-command t t)
- (remove-hook 'post-command-hook 'flymakemsg-post-command t)))
-
-(defadvice flymake-log (after
- flymakemsg-ad-flymake-log
- activate compile)
- "Display error on current line if any."
- ;;(message "flymake-log defadvice called")
- (if (not flymake-err-info)
- (remove-hook 'post-command-hook 'flymakemsg-post-command t)
- (add-hook 'post-command-hook 'flymakemsg-post-command t t)
- ;; Wait, because there is another message first.
- (flymakemsg-start-msg-timer 3.0)))
-
-(defun flymakemsg-post-command ()
- ;; Wait to not disturb to much.
- (flymakemsg-start-msg-timer 0.2))
-
-(defvar flymakemsg-msg-timer nil)
-
-(defun flymakemsg-cancel-msg-timer ()
- (when (timerp flymakemsg-msg-timer)
- (cancel-timer flymakemsg-msg-timer)))
-
-(defun flymakemsg-start-msg-timer (delay)
- (flymakemsg-cancel-msg-timer)
- (run-with-idle-timer delay nil 'flymakemsg-show-err-at-point))
-
-;;; I have no idea why it was done the way below. It was in the paste.
-;;; It seems very unnecessary but I keep it for now.
-;;
-;; (defun fly-pyflake-determine-message (err)
-;; "pyflake is flakey if it has compile problems, this adjusts the
-;; message to display, so there is one ;)"
-;; (cond ((not (or (eq major-mode 'Python) (eq major-mode 'python-mode) t)))
-;; ((null (flymake-ler-file err))
-;; ;; normal message do your thing
-;; (flymake-ler-text err))
-;; (t ;; could not compile err
-;; (format "compile error, problem on line %s" (flymake-ler-line err)))))
-
-;; (let ((line-no (line-number-at-pos)))
-;; (dolist (elem flymake-err-info)
-;; (if (eq (car elem) line-no)
-;; (let ((err (car (second elem))))
-;; (message "%s" (fly-pyflake-determine-message err))))))
-
-
-(provide 'flymakemsg)
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;; flymakemsg.el ends here