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| author | Thien-Thi Nguyen <ttn@gnuvola.org> | 2002-06-01 00:55:41 +0000 |
|---|---|---|
| committer | Thien-Thi Nguyen <ttn@gnuvola.org> | 2002-06-01 00:55:41 +0000 |
| commit | f614a1aec27881c29816e0dead5ce52649bfa970 (patch) | |
| tree | d00c3d914a747498e29b86ef687e5f0890058f51 /lisp/progmodes/prolog.el | |
| parent | ba36181bdff1ce1bbf3029024a9a6c795c51e40b (diff) | |
| download | emacs-f614a1aec27881c29816e0dead5ce52649bfa970.tar.gz | |
(prolog-mode-syntax-table): Add flags to ?/ and ?* entries
to support /* */ style comments.
(prolog-font-lock-keywords): New var.
(prolog-mode): Enable font-locking; set `font-lock-defaults'.
Diffstat (limited to 'lisp/progmodes/prolog.el')
| -rw-r--r-- | lisp/progmodes/prolog.el | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/lisp/progmodes/prolog.el b/lisp/progmodes/prolog.el index 593d3a8de31..6cb571b73e9 100644 --- a/lisp/progmodes/prolog.el +++ b/lisp/progmodes/prolog.el @@ -26,7 +26,7 @@ ;; This package provides a major mode for editing Prolog. It knows ;; about Prolog syntax and comments, and can send regions to an inferior -;; Prolog interpreter process. +;; Prolog interpreter process. Font locking is tuned towards GNU Prolog. ;;; Code: @@ -38,7 +38,7 @@ "Major mode for editing and running Prolog under Emacs" :group 'languages) - + (defcustom prolog-program-name "prolog" "*Program name for invoking an inferior Prolog with `run-prolog'." :type 'string @@ -65,13 +65,23 @@ nil means send actual operating system end of file." :type 'integer :group 'prolog) +(defvar prolog-font-lock-keywords + '(("\\(#[<=]=>\\|:-\\)\\|\\(#=\\)\\|\\(#[#<>\\/][=\\/]*\\|!\\)" + 0 font-lock-keyword-face) + ("\\<\\(is\\|write\\|nl\\|read_\\sw+\\)\\>" + 1 font-lock-keyword-face) + ("^\\(\\sw+\\)\\s-*\\((\\(.+\\))\\)*" + (1 font-lock-function-name-face) + (3 font-lock-variable-name-face))) + "Font-lock keywords for Prolog mode.") + (if prolog-mode-syntax-table () (let ((table (make-syntax-table))) (modify-syntax-entry ?_ "w" table) (modify-syntax-entry ?\\ "\\" table) - (modify-syntax-entry ?/ "." table) - (modify-syntax-entry ?* "." table) + (modify-syntax-entry ?/ ". 14" table) + (modify-syntax-entry ?* ". 23" table) (modify-syntax-entry ?+ "." table) (modify-syntax-entry ?- "." table) (modify-syntax-entry ?= "." table) @@ -129,6 +139,10 @@ if that value is non-nil." (setq major-mode 'prolog-mode) (setq mode-name "Prolog") (prolog-mode-variables) + ;; font lock + (setq font-lock-defaults '(prolog-font-lock-keywords + nil nil nil + beginning-of-line)) (run-hooks 'prolog-mode-hook)) (defun prolog-indent-line (&optional whole-exp) |