=== modified file 'lisp/progmodes/cfengine.el' --- lisp/progmodes/cfengine.el 2011-11-20 03:48:53 +0000 +++ lisp/progmodes/cfengine.el 2011-12-07 10:48:58 +0000 @@ -5,6 +5,9 @@ ;; Author: Dave Love ;; Maintainer: Ted Zlatanov ;; Keywords: languages +;; Version: 1.1 +(defvar cfengine-version nil) +(setq cfengine-version "1.1") ;; This file is part of GNU Emacs. @@ -29,18 +32,18 @@ ;; The CFEngine 3.x support doesn't have Imenu support but patches are ;; welcome. -;; You can set it up so either cfengine-mode (2.x and earlier) or -;; cfengine3-mode (3.x) will be picked, depending on the buffer +;; You can set it up so either `cfengine2-mode' (2.x and earlier) or +;; `cfengine3-mode' (3.x) will be picked, depending on the buffer ;; contents: -;; (add-to-list 'auto-mode-alist '("\\.cf\\'" . cfengine-auto-mode)) +;; (add-to-list 'auto-mode-alist '("\\.cf\\'" . cfengine-mode)) ;; OR you can choose to always use a specific version, if you prefer -;; it +;; it: ;; (add-to-list 'auto-mode-alist '("\\.cf\\'" . cfengine3-mode)) -;; (add-to-list 'auto-mode-alist '("^cf\\." . cfengine-mode)) -;; (add-to-list 'auto-mode-alist '("^cfagent.conf\\'" . cfengine-mode)) +;; (add-to-list 'auto-mode-alist '("^cf\\." . cfengine2-mode)) +;; (add-to-list 'auto-mode-alist '("^cfagent.conf\\'" . cfengine2-mode)) ;; This is not the same as the mode written by Rolf Ebert ;; , distributed with cfengine-2.0.5. It does @@ -49,16 +52,32 @@ ;;; Code: (defgroup cfengine () - "Editing Cfengine files." + "Editing CFEngine files." :group 'languages) (defcustom cfengine-indent 2 - "*Size of a Cfengine indentation step in columns." + "*Size of a CFEngine indentation step in columns." :group 'cfengine :type 'integer) -(defcustom cfengine-mode-abbrevs nil - "Abbrevs for Cfengine mode." +(defcustom cfengine3-parameters-indent '(promise pname 0) + "*Indentation of CFEngine3 promise parameters (hanging indent)." + :group 'cfengine + :type '(list + (choice (const :tag "Anchor at beginning of promise" promise) + (const :tag "Anchor at beginning of line" bol)) + (choice (const :tag "Indent parameter name" pname) + (const :tag "Indent arrow" arrow)) + (integer :tag "Indentation amount from anchor"))) + +(defcustom cfengine3-mode-verbose nil + "Whether `cfengine-mode' should be verbose + (only used by the cfengine3 support currently)" + :group 'cfengine + :type 'boolean) + +(defcustom cfengine2-mode-abbrevs nil + "Abbrevs for CFEngine2 mode." :group 'cfengine :type '(repeat (list (string :tag "Name") (string :tag "Expansion") @@ -66,7 +85,7 @@ ;; Taken from the doc for pre-release 2.1. (eval-and-compile - (defconst cfengine-actions + (defconst cfengine2-actions '("acl" "alerts" "binservers" "broadcast" "control" "classes" "copy" "defaultroute" "disks" "directories" "disable" "editfiles" "files" "filters" "groups" "homeservers" "ignore" "import" "interfaces" @@ -102,7 +121,7 @@ `(;; Actions. ;; List the allowed actions explicitly, so that errors are more obvious. (,(concat "^[ \t]*" (eval-when-compile - (regexp-opt cfengine-actions t)) + (regexp-opt cfengine2-actions t)) ":") 1 font-lock-keyword-face) ;; Classes. @@ -117,17 +136,6 @@ (defvar cfengine3-font-lock-keywords `( - (,(concat "^[ \t]*" cfengine3-class-selector-regex) - 1 font-lock-keyword-face) - (,(concat "^[ \t]*" cfengine3-category-regex) - 1 font-lock-builtin-face) - ;; Variables, including scope, e.g. module.var - ("[@$](\\([[:alnum:]_.]+\\))" 1 font-lock-variable-name-face) - ("[@$]{\\([[:alnum:]_.]+\\)}" 1 font-lock-variable-name-face) - ;; Variable definitions. - ("\\<\\([[:alnum:]_]+\\)[ \t]*=[ \t]*(" 1 font-lock-variable-name-face) - - ;; CFEngine 3.x faces ;; defuns (,(concat "\\<" cfengine3-defuns-regex "\\>" "[ \t]+\\<\\([[:alnum:]_]+\\)\\>" @@ -136,27 +144,43 @@ (2 font-lock-constant-name-face) (3 font-lock-function-name-face) (5 font-lock-variable-name-face)) + + ;; class selector + (,(concat "^[ \t]*" cfengine3-class-selector-regex) + 1 font-lock-keyword-face) + + ;; category + (,(concat "^[ \t]*" cfengine3-category-regex) + 1 font-lock-builtin-face) + + ;; Variables, including scope, e.g. module.var + ("[@$](\\([[:alnum:]_.]+\\))" 1 font-lock-variable-name-face) + ("[@$]{\\([[:alnum:]_.]+\\)}" 1 font-lock-variable-name-face) + + ;; Variable definitions. + ("\\<\\([[:alnum:]_]+\\)[ \t]*=[ \t]*(" 1 font-lock-variable-name-face) + ;; variable types (,(concat "\\<" (eval-when-compile (regexp-opt cfengine3-vartypes t)) "\\>") 1 font-lock-type-face))) -(defvar cfengine-imenu-expression +(defvar cfengine2-imenu-expression `((nil ,(concat "^[ \t]*" (eval-when-compile - (regexp-opt cfengine-actions t)) + (regexp-opt cfengine2-actions t)) ":[^:]") 1) ("Variables/classes" "\\<\\([[:alnum:]_]+\\)[ \t]*=[ \t]*(" 1) ("Variables/classes" "\\[ \t]+\\([[:alnum:]_]+\\)" 1)) - "`imenu-generic-expression' for Cfengine mode.") + "`imenu-generic-expression' for CFEngine mode.") -(defun cfengine-outline-level () - "`outline-level' function for Cfengine mode." +(defun cfengine2-outline-level () + "`outline-level' function for CFEngine mode." (if (looking-at "[^:]+\\(?:[:]+\\)$") (length (match-string 1)))) -(defun cfengine-beginning-of-defun () - "`beginning-of-defun' function for Cfengine mode. +(defun cfengine2-beginning-of-defun () + "`beginning-of-defun' function for CFEngine mode. Treats actions as defuns." (unless (<= (current-column) (current-indentation)) (end-of-line)) @@ -165,8 +189,8 @@ (goto-char (point-min))) t) -(defun cfengine-end-of-defun () - "`end-of-defun' function for Cfengine mode. +(defun cfengine2-end-of-defun () + "`end-of-defun' function for CFEngine mode. Treats actions as defuns." (end-of-line) (if (re-search-forward "^[[:alpha:]]+: *$" nil t) @@ -176,7 +200,7 @@ ;; Fixme: Should get an extra indent step in editfiles BeginGroup...s. -(defun cfengine-indent-line () +(defun cfengine2-indent-line () "Indent a line in Cfengine mode. Intended as the value of `indent-line-function'." (let ((pos (- (point-max) (point)))) @@ -283,15 +307,17 @@ (narrow-to-defun) (back-to-indentation) (setq parse (parse-partial-sexp (point-min) (point))) - (message "%S" parse) + (when cfengine3-mode-verbose + (message "%S" parse)) + (cond - ;; body/bundle blocks start at 0 + ;; Body/bundle blocks start at 0. ((looking-at (concat cfengine3-defuns-regex "\\>")) (indent-line-to 0)) - ;; categories are indented one step + ;; Categories are indented one step. ((looking-at (concat cfengine3-category-regex "[ \t]*$")) (indent-line-to cfengine-indent)) - ;; class selectors are indented two steps + ;; Class selectors are indented two steps. ((looking-at (concat cfengine3-class-selector-regex "[ \t]*$")) (indent-line-to (* 2 cfengine-indent))) ;; Outdent leading close brackets one step. @@ -303,13 +329,31 @@ (backward-sexp) (current-column))) (error nil))) - ;; inside a string and it starts before this line + ;; Inside a string and it starts before this line. ((and (nth 3 parse) (< (nth 8 parse) (save-excursion (beginning-of-line) (point)))) (indent-line-to 0)) - ;; inside a defun, but not a nested list (depth is 1) + + ;; Inside a defun, but not a nested list (depth is 1). This is + ;; a promise, usually. ((= 1 (nth 0 parse)) - (indent-line-to (* (+ 2 (nth 0 parse)) cfengine-indent))) + (let ((p-anchor (nth 0 cfengine3-parameters-indent)) + (p-what (nth 1 cfengine3-parameters-indent)) + (p-indent (nth 2 cfengine3-parameters-indent))) + ;; Do we have the parameter anchor and location and indent + ;; defined, and are we looking at a promise parameter? + (if (and p-anchor p-what p-indent + (looking-at "\\([[:alnum:]_]+[ \t]*\\)=>")) + (let* ((arrow-offset (* -1 (length (match-string 1)))) + (extra-offset (if (eq p-what 'arrow) arrow-offset 0)) + (base-offset (if (eq p-anchor 'promise) + (* (+ 2 (nth 0 parse)) cfengine-indent) + 0))) + (indent-line-to (max 0 (+ p-indent base-offset extra-offset)))) + ;; Else, indent to cfengine-indent times the nested depth + ;; plus 2. That way, promises indent deeper than class + ;; selectors, which in turn are one deeper than categories. + (indent-line-to (* (+ 2 (nth 0 parse)) cfengine-indent))))) ;; Inside brackets/parens: indent to start column of non-comment ;; token on line following open bracket or by one step from open ;; bracket's column. @@ -421,8 +465,8 @@ (modify-syntax-entry ?\\ "." table)) ;;;###autoload -(define-derived-mode cfengine3-mode prog-mode "CFEngine3" - "Major mode for editing cfengine input. +(define-derived-mode cfengine3-mode prog-mode "CFE3" + "Major mode for editing CFEngine3 input. There are no special keybindings by default. Action blocks are treated as defuns, i.e. \\[beginning-of-defun] moves @@ -441,39 +485,39 @@ #'cfengine3-end-of-defun)) ;;;###autoload -(define-derived-mode cfengine-mode prog-mode "Cfengine" - "Major mode for editing cfengine input. +(define-derived-mode cfengine2-mode prog-mode "CFE2" + "Major mode for editing CFEngine2 input. There are no special keybindings by default. Action blocks are treated as defuns, i.e. \\[beginning-of-defun] moves to the action header." (cfengine-common-settings) - (cfengine-common-syntax cfengine-mode-syntax-table) + (cfengine-common-syntax cfengine2-mode-syntax-table) ;; Shell commands can be quoted by single, double or back quotes. ;; It's debatable whether we should define string syntax, but it ;; should avoid potential confusion in some cases. - (modify-syntax-entry ?\' "\"" cfengine-mode-syntax-table) - (modify-syntax-entry ?\` "\"" cfengine-mode-syntax-table) + (modify-syntax-entry ?\' "\"" cfengine2-mode-syntax-table) + (modify-syntax-entry ?\` "\"" cfengine2-mode-syntax-table) - (set (make-local-variable 'indent-line-function) #'cfengine-indent-line) + (set (make-local-variable 'indent-line-function) #'cfengine2-indent-line) (set (make-local-variable 'outline-regexp) "[ \t]*\\(\\sw\\|\\s_\\)+:+") - (set (make-local-variable 'outline-level) #'cfengine-outline-level) + (set (make-local-variable 'outline-level) #'cfengine2-outline-level) (set (make-local-variable 'fill-paragraph-function) #'cfengine-fill-paragraph) - (define-abbrev-table 'cfengine-mode-abbrev-table cfengine-mode-abbrevs) + (define-abbrev-table 'cfengine2-mode-abbrev-table cfengine2-mode-abbrevs) (setq font-lock-defaults - '(cfengine-font-lock-keywords nil nil nil beginning-of-line)) + '(cfengine-font-lock-keywords nil nil nil beginning-of-line)) ;; Fixme: set the args of functions in evaluated classes to string ;; syntax, and then obey syntax properties. - (setq imenu-generic-expression cfengine-imenu-expression) + (setq imenu-generic-expression cfengine2-imenu-expression) (set (make-local-variable 'beginning-of-defun-function) - #'cfengine-beginning-of-defun) - (set (make-local-variable 'end-of-defun-function) #'cfengine-end-of-defun)) + #'cfengine2-beginning-of-defun) + (set (make-local-variable 'end-of-defun-function) #'cfengine2-end-of-defun)) ;;;###autoload (defun cfengine-auto-mode () - "Choose between `cfengine-mode' and `cfengine3-mode' depending + "Choose between `cfengine2-mode' and `cfengine3-mode' depending on the buffer contents" (let ((v3 nil)) (save-restriction @@ -481,9 +525,12 @@ (while (not (or (eobp) v3)) (setq v3 (looking-at (concat cfengine3-defuns-regex "\\>"))) (forward-line))) - (if v3 (cfengine3-mode) (cfengine-mode)))) + (if v3 (cfengine3-mode) (cfengine2-mode)))) + +(defalias 'cfengine-mode 'cfengine-auto-mode) (provide 'cfengine3) +(provide 'cfengine2) (provide 'cfengine) ;;; cfengine.el ends here