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mapserver-mode.el
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mapserver-mode.el
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;; mapserver-mode-el -- Major mode for editing UMN MapServer files
;; Author: Hal Mueller <[email protected]>
;; Created: 22 May 2004
;; Keywords: MapServer major-mode
;; Copyright (C) 2004 Hal Mueller <[email protected]>
;; (distributed under the standard MapServer license)
;; Permission is hereby granted, free of charge, to any person obtaining a copy of
;; this software and associated documentation files (the "Software"), to deal in
;; the Software without restriction, including without limitation the rights to use,
;; copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
;; Software, and to permit persons to whom the Software is furnished to do so, subject
;; to the following conditions:
;; The above copyright notice and this permission notice shall be included in all
;; copies of this Software or works derived from this Software.
;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
;; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
;; FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
;; COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
;; IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
;; WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
;;; Commentary:
;;
;; This mode is for editing .MAP configuration files used by the UMN MapServer.
;; Current version of this mode can be found at http://www.mobilegeographics.com/mapserver/
;; The MapServer software itself is at http://mapserver.gis.umn.edu/
;;
;; Usage: add these lines to your .emacs file:
;; (autoload 'mapserver-mode "mapserver-mode" "Mode for editing UMN MapServer files." t)
;; (add-to-list 'auto-mode-alist '("\\.map\\'" . mapserver-mode))
;;
;; and of course install this file (mapserver-mode.el) in a directory in your load-path.
;;
;; Known bugs:
;; constructs of the form PROJECTION "xxx" "yyy" "zzz" END break the indentation. Instead, use
;; PROJECTION
;; "xxx" "yyy" "zzz"
;; END
;;
;; The bug is probably in the function 'mapserver-indent-line.
;;; Code:
(defvar mapserver-mode-hook nil)
(defvar mapserver-mode-map
(let ((mapserver-mode-map (make-keymap)))
(define-key mapserver-mode-map "\C-j" 'newline-and-indent)
mapserver-mode-map)
"Keymap for MapServer major mode")
(add-to-list 'auto-mode-alist '("\\.map\\'" . mapserver-mode))
(add-to-list 'auto-mode-alist '("\\.MAP\\'" . mapserver-mode))
;;;(setq xyzzy (regexp-opt '("END" "MAP" "LAYER" "PROJECTION" "STYLE" "CLASS" "QUERYMAP" "LEGEND" "REFERENCE" "SCALEBAR" "WEB" "FEATURE" "POINTS" "JOIN" "OUTPUTFORMAT" "FONTSET") t))
(defconst mapserver-font-lock-keywords-1
(list
;; These define the beginning and end of each MapServer entity definition
;; END
;; CLASS FEATURE FONTSET JOIN LAYER LEGEND MAP OUTPUTFORMAT POINTS PROJECTION QUERYMAP REFERENCE SCALEBAR TEMPLATE STYLE WEB
'("\\<\\(CLASS\\|END\\|F\\(?:EATURE\\|ONTSET\\)\\|JOIN\\|L\\(?:AYER\\|EGEND\\)\\|MAP\\|OUTPUTFORMAT\\|P\\(?:OINTS\\|ROJECTION\\)\\|QUERYMAP\\|REFERENCE\\|S\\(?:CALEBAR\\|TYLE\\)\\|WEB\\)\\>" . font-lock-builtin-face)
'("\\('\\w*'\\)" . font-lock-variable-name-face))
"Minimal highlighting expressions for MapServer mode.")
(defconst mapserver-font-lock-keywords-2
(append mapserver-font-lock-keywords-1
(list
;; These are some possible attributes of MapServer entities
;; "COLOR" "MAXSIZE" "MINSIZE" "OFFSET" "OUTLINECOLOR" "TRANSPARENT" "BACKGROUNDCOLOR" "ANTIALIAS" "NAME"
'("\\<\\(COLOR\\|MAXSIZE\\)\\>" . font-lock-keyword-face)
'("\\<\\(ON\\|OFF\\)\\>" . font-lock-constant-face)))
"Additional Keywords to highlight in MapServer mode.")
(defconst mapserver-font-lock-keywords-3
(append mapserver-font-lock-keywords-2
(list
;; These are some possible built-in values for MapServer attributes
;; POINT POLYGON LINE
'("\\<(LINE\\|PO\\(?:INT\\|LYGON\\))\\>" . font-lock-constant-face)))
"Balls-out highlighting in MapServer mode.")
(defvar mapserver-mode-tab-width 4)
(defvar mapserver-font-lock-keywords mapserver-font-lock-keywords-3
"Default highlighting expressions for MapServer mode.")
(defun mapserver-indent-line ()
"Indent current line as MapServer code."
(interactive)
(beginning-of-line)
(if (bobp)
(indent-line-to 0) ; First line is always non-indented
(let ((not-indented t) cur-indent)
(if (looking-at "^[ \t]*END") ; If the line we are looking at is the end of a block, then decrease the indentation
(progn
(save-excursion
(forward-line -1)
(setq cur-indent (- (current-indentation) mapserver-mode-tab-width)))
(if (< cur-indent 0) ; We can't indent past the left margin
(setq cur-indent 0)))
(save-excursion
(while not-indented ; Iterate backwards until we find an indentation hint
(forward-line -1)
(if (looking-at "^[ \t]*END") ; This hint indicates that we need to indent at the level of the END_ token
(progn
(indent-according-to-mode)
(setq cur-indent (current-indentation))
(setq not-indented nil))
;; CLASS FEATURE FONTSET GRID JOIN LAYER LEGEND MAP OUTPUTFORMAT POINTS PROJECTION QUERYMAP REFERENCE SCALEBAR STYLE WEB
(if (or (looking-at "^SYMBOL$")
(looking-at "^[ \t]*\\(CLASS\\|FEATURE\\|FONTSET\\|GRID\\|JOIN\\|LABEL\\b\\|LAYER\\|LEGEND\\|MAP\\|OUTPUTFORMAT\\|POINTS\\|PROJECTION\\|QUERYMAP\\|REFERENCE\\|SCALEBAR\\|STYLE\\|WEB\\)")) ; This hint indicates that we need to indent an extra level
(progn
(setq cur-indent (+ (current-indentation) mapserver-mode-tab-width)) ; Do the actual indenting
(setq not-indented nil))
(if (bobp)
(setq not-indented nil)))))))
(if cur-indent
(indent-line-to cur-indent)
(indent-line-to 0))))) ; If we didn't see an indentation hint, then allow no indentation
(defvar mapserver-mode-syntax-table
(let ((mapserver-mode-syntax-table (make-syntax-table)))
;; This is added so entity names with underscores can be more easily parsed
(modify-syntax-entry ?_ "w" mapserver-mode-syntax-table)
(modify-syntax-entry ?# "<" mapserver-mode-syntax-table)
(modify-syntax-entry ?\n ">" mapserver-mode-syntax-table)
mapserver-mode-syntax-table)
"Syntax table for mapserver-mode")
(defun mapserver-mode ()
(interactive)
(kill-all-local-variables)
(use-local-map mapserver-mode-map)
(set-syntax-table mapserver-mode-syntax-table)
;; Set up font-lock
(set (make-local-variable 'font-lock-defaults) '(mapserver-font-lock-keywords))
;; Register our indentation function
(set (make-local-variable 'indent-line-function) 'mapserver-indent-line)
(set (make-local-variable 'tab-width) mapserver-mode-tab-width)
(setq major-mode 'mapserver-mode)
(setq mode-name "MapServer")
(run-hooks 'mapserver-mode-hook))
(provide 'mapserver-mode)
;;; mapserver-mode.el ends here