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https://github.com/vale981/emacs-ipython-notebook
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61 lines
2.3 KiB
EmacsLisp
61 lines
2.3 KiB
EmacsLisp
;;; ein-multilang-fontify.el --- Syntax highlighting for multiple-languages
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;; Copyright (C) 2012 Takafumi Arakaki
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;; Author: Takafumi Arakaki <aka.tkf at gmail.com>
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;; This file is NOT part of GNU Emacs.
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;; ein-multilang-fontify.el is free software: you can redistribute it
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;; and/or modify it under the terms of the GNU General Public License
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;; as published by the Free Software Foundation, either version 3 of
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;; the License, or (at your option) any later version.
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;; ein-multilang-fontify.el is distributed in the hope that it will be
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;; useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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;; of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with ein-multilang-fontify.el.
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;; If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;;; Code:
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;; TODO: remove dependency on org-mode.
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(require 'org-src nil t)
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(defun ein:mlf-font-lock-fontify-block (lang start end)
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(let ((lang-mode (org-src-get-lang-mode lang)))
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(if (fboundp lang-mode)
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(let ((string (buffer-substring-no-properties start end))
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(modified (buffer-modified-p))
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(org-buffer (current-buffer)) pos next)
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(remove-text-properties start end '(face nil))
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(with-current-buffer
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(get-buffer-create
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(concat " ein:mlf-fontification:" (symbol-name lang-mode)))
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(delete-region (point-min) (point-max))
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(insert (concat string " ")) ;; so there's a final property change
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(unless (eq major-mode lang-mode) (funcall lang-mode))
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(font-lock-fontify-buffer)
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(setq pos (point-min))
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(while (setq next (next-single-property-change pos 'face))
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(put-text-property
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;; `font-lock-face' property is used instead of `font'.
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;; This is the only difference from org-src.
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(+ start (1- pos)) (+ start next) 'font-lock-face
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(get-text-property pos 'face) org-buffer)
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(setq pos next)))
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(add-text-properties
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start end
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'(font-lock-fontified t fontified t font-lock-multiline t))
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(set-buffer-modified-p modified)))))
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(provide 'ein-multilang-fontify)
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;;; ein-multilang-fontify.el ends here
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