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ac-emacs-eclim-source.el
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ac-emacs-eclim-source.el
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;; ac-emacs-eclim-source.el --- an interface to the Eclipse IDE.
;;
;; Copyright (C) 2009 Fredrik Appelberg
;;
;; 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 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
;;
;;; Contributors
;;
;;; Conventions
;;
;; Conventions used in this file: Name internal variables and functions
;; "eclim--<descriptive-name>", and name eclim command invocations
;; "eclim/command-name", like eclim/project-list.
;;; Description
;;
;; ac-emacs-eclim-source.el -- a emacs eclime source for auto-complete-mode
;;
(require 'eclim)
(require 'eclim-java)
(require 'auto-complete)
(defface ac-emacs-eclim-candidate-face
'((t (:background "gold1" :foreground "black")))
"Face for emacs-eclim candidate."
:group 'auto-complete)
(defface ac-emacs-eclim-selection-face
'((t (:background "gold4" :foreground "white")))
"Face for the emacs-eclim selected candidate."
:group 'auto-complete)
(defun ac-emacs-eclim-candidates ()
(with-no-warnings
(loop for c in (eclim/java-complete)
collect (nth 2 c))))
(defun ac-emacs-eclim-available ()
(eclim--accepted-p (buffer-file-name)))
(defvar ac-emacs-eclim-point)
(defun ac-emacs-eclim-init ()
(setq ac-emacs-eclim-point ac-point)
(when eclim-print-debug-messages (message "Completion started at %s, ac-point is %s" (point) ac-point)))
(defun ac-emacs-eclim-yasnippet-convert (s)
"Convert a completion string to a yasnippet template"
(apply #'concat
(let* ((beg (string-match "[<(]" s)))
(cons (substring s 0 (or beg (length s)))
(loop for start = beg then (match-end 0)
for end = (string-match "(\\|)\\|, *" s start)
with i = 0
while end
if (not (= start end)) collect (format "${%s:%s}" (incf i) (substring s start end)) into res
collect (match-string 0 s) into res
finally return (append res '("$0")))))))
(defun ac-emacs-eclim-action ()
(let* ((end (point))
(completion (buffer-substring-no-properties ac-emacs-eclim-point end)))
(if (string-match "\\([^-:]+\\) .*?\\(- *\\(.*\\)\\)?" completion)
(let* ((insertion (match-string 1 completion))
(rest (match-string 3 completion))
(package (if (and rest (string-match "\\w+\\(\\.\\w+\\)*" rest)) rest nil))
(template (ac-emacs-eclim-yasnippet-convert insertion)))
(delete-region ac-emacs-eclim-point end)
(if (and eclim-use-yasnippet template (featurep 'yasnippet))
(yas/expand-snippet template)
(insert insertion))
(when package
(eclim--java-organize-imports
(eclim/execute-command "java_import_order" "-p")
(list (concat package "." (substring insertion 0 (or (string-match "[<(]" insertion)
(length insertion)))))))))))
(ac-define-source emacs-eclim
'((candidates . ac-emacs-eclim-candidates)
(available . ac-emacs-eclim-available)
(init . ac-emacs-eclim-init)
(action . ac-emacs-eclim-action)
(requires . 0)
(cache)
(selection-face . ac-emacs-eclim-selection-face)
(candidate-face . ac-emacs-eclim-candidate-face)
(symbol . "f")))
(provide 'ac-emacs-eclim-source)