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;;; anubis-mode.el --- major mode for editing GNU Anubis configuration files
;; Authors: 2003 Sergey Poznyakoff
;; Version: 1.0
;; Keywords: anubis
;; $Id$
;; This file is part of GNU Anubis.
;; Copyright (C) 2003-2014 The Anubis Team.
;; GNU Anubis 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, or (at your option) any
;; later version.
;; GNU Anubis 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 GNU Anubis. If not, see <http://www.gnu.org/licenses/>.
;; Installation.
;; Usually the normal installation is performed by make install.
;; However, if you wish or have to install this module manually,
;; please notice the following:
;;
;; You may wish to use precompiled version of the module. To create it
;; run:
;; emacs -batch -f batch-byte-compile anubis-mode.el
;; Install files anubis-mode.el and anubis-mode.elc to any directory in
;; Emacs's load-path.
;; Customization:
;; To your .emacs or site-start add:
;; (autoload 'anubis-mode "anubis-mode")
;; (setq auto-mode-alist (append auto-mode-alist
;; '(("/.anubisrc$" . anubis-mode)
;; ("/anubisrc$" . anubis-mode))))
;; You may also wish to modify the following variables:
;; anubis-section-body-indent -- Indent level for a section body. Defaults
;; to 0.
;; anubis-level-indent -- Amount of indentation per block nesting
;; level. Defaults to 2.
(eval-when-compile
;; We use functions from these modules
(mapcar 'require '(info compile font-lock)))
(defvar anubis-mode-syntax-table nil
"Syntax table used in anubis-mode buffers.")
(unless anubis-mode-syntax-table
(setq anubis-mode-syntax-table (make-syntax-table))
(modify-syntax-entry ?\# "<" anubis-mode-syntax-table)
(modify-syntax-entry ?\n ">" anubis-mode-syntax-table)
(modify-syntax-entry ?\t "-" anubis-mode-syntax-table)
(modify-syntax-entry ?- "w" anubis-mode-syntax-table)
(modify-syntax-entry ?_ "w" anubis-mode-syntax-table))
(defvar anubis-mode-abbrev-table nil
"Abbrev table in use in anubis-mode buffers.")
(define-abbrev-table 'anubis-mode-abbrev-table
'(("BE" "BEGIN " nil 0)
("EN" "END" nil 0)
("ru" "rule " nil 0)
("tri" "trigger " nil 0)
("hea" "header " nil 0)))
(defvar anubis-mode-map ()
"Keymap used in anubis-mode buffers.")
(unless anubis-mode-map
(setq anubis-mode-map (make-sparse-keymap))
(define-key anubis-mode-map "\t" 'anubis-complete-or-indent)
(define-key anubis-mode-map "\e\t" 'anubis-indent-line)
(define-key anubis-mode-map "\e?" 'anubis-describe-keywords)
(define-key anubis-mode-map "\C-c\C-c" 'anubis-check-syntax)
(define-key anubis-mode-map [menu-bar] (make-sparse-keymap))
(define-key anubis-mode-map [menu-bar Anubis]
(cons "Anubis" anubis-mode-map))
(define-key anubis-mode-map [anubis-check-syntax]
'("Check syntax" . anubis-check-syntax)))
(defvar anubis-path nil
"Path to the anubis executable")
(defvar anubis-section-body-indent 0
"Indent of a section body in an Anubis rc file")
(defvar anubis-level-indent 2
"Amount of additional indentation per nesting level of statements")
;; Font lock stuff
(defconst anubis-font-lock-keywords
(eval-when-compile
(list
(list "\\(BEGIN\\)[ \t]+\\(\\sw+\\)"
'(1 font-lock-keyword-face)
'(2 font-lock-function-name-face))
(cons "^\\s *\\(---\\)?\\s *END\\s *\\(---\\)?" font-lock-keyword-face)
(cons (regexp-opt
'("if" "else" "fi" "rule" "trigger" "done")
'words)
font-lock-keyword-face)
(cons (regexp-opt
'("stop" "call" "add" "remove" "modify" "regexp") 'words)
font-lock-keyword-face)
(cons (regexp-opt
'("and" "or" "not") 'words)
font-lock-keyword-face)
(cons (regexp-opt
'("header" "body" "command") 'words)
font-lock-type-face)
(cons (regexp-opt
'("bind"
"rule-priority"
"control-priority"
"termlevel"
"allow-local-mta"
"user-notprivileged"
"drop-unknown-user"
"loglevel"
"logfile"
"tracefile"
"remote-mta"
"local-mta"
"esmtp-allowed-mech"
"esmtp-require-encryption"
"esmtp-auth-id"
"esmtp-authz-id"
"esmtp-password"
"esmtp-auth"
"esmtp-service"
"esmtp-hostname"
"esmtp-generic-service"
"esmtp-passcode"
"esmtp-realm"
"esmtp-anonymous-token"
"mode"
"smtp-greeting-message"
"smtp-help-message"
"sasl-password-db"
"sasl-allowed-mech"
"socks-proxy"
"socks-v4"
"socks-auth"
"read-entire-body"
"ssl"
"ssl-oneway"
"ssl-cert"
"ssl-key"
"ssl-cafile"
"signature-file-append"
"body-append"
"body-clear-append"
"body-clear"
"external-body-processor"
"gpg-passphrase"
"gpg-encrypt"
"gpg-sign"
"gpg-sign-encrypt"
"gpg-se"
"gpg-home"
"guile-output"
"guile-debug"
"guile-load-path-append"
"guile-load-program"
"guile-debug"
"guile-load-path-append"
"guile-load-program"
"guile-rewrite-line"
"guile-process") 'words)
font-lock-keyword-face)
(list (concat ":"
(regexp-opt
'("re" "regex"
"perl" "perlre"
"ex" "exact"
"scase"
"icase"
"basic"
"extended") t)) ; FIXME: 'words does not work
1 font-lock-builtin-face)
(list "#:\\(\\sw+\\)" 1 font-lock-constant-face 'prepend)
(cons "\\[\\sw+\\]" font-lock-string-face) ) )
"Expressions to highlight in Anubis mode.")
;; A list of keywords allowed in each section
(defconst anubis-keyword-dict
;; section Keyword-list
'((nil BEGIN)
(CONTROL END
bind
(termlevel normal
verbose
debug
silent)
(allow-local-mta yes no)
user-notprivileged
(loglevel none
fails
all)
logfile
tracefile
remote-mta
local-mta
esmtp-allowed-mech
esmtp-require-encryption
esmtp-auth-id
esmtp-authz-id
esmtp-password
esmtp-auth
esmtp-service
esmtp-hostname
esmtp-generic-service
esmtp-passcode
esmtp-realm
esmtp-anonymous-token
(mode transparent
auth)
socks-proxy
(socks-v4 yes no)
socks-auth
read-entire-body
(drop-unknown-user yes no)
(rule-priority system
user
system-only
user-only)
(control-priority yes no)
(ssl yes no)
(ssl-oneway yes no)
(ssl-cert yes no)
(ssl-key yes no)
(ssl-cafile yes no))
(AUTH END
smtp-greeting-message
smtp-help-message
sasl-password-db
sasl-allowed-mech)
(TRANSLATION END
translate)
(GUILE END
guile-output
(guile-debug yes no)
guile-load-path-append
guile-load-program)
(RULE END
if
else
fi
trigger
done
add
remove
modify
call
stop
regex
(signature-file-append yes no)
body-append
(body-clear yes no)
body-clear-append
gpg-passphrase
gpg-encrypt
gpg-sign
gpg-sign-encrypt
gpg-se
external-body-processor
guile-process)))
(defconst anubis-keyword-nodes
;; Block kwd Info node Opt. Info file
'(("CONTROL" "CONTROL Section")
("AUTH" "AUTH Section")
("TRANSLATION" "TRANSLATION Section")
("translate" "TRANSLATION Section")
("GUILE" "GUILE Section")
("RULE" "Rule System")
("bind" "Basic Settings")
("remote-mta" "Basic Settings")
("local-mta" "Basic Settings")
("mode" "Basic Settings")
("smtp-greeting-message" "AUTH Section")
("smtp-help-message" "AUTH Section")
("sasl-password-db" "AUTH Section")
("sasl-allowed-mech" "AUTH Section")
("termlevel" "Output Settings")
("logfile" "Output Settings")
("loglevel" "Output Settings")
("tracefile" "Output Settings")
("socks-proxy" "Proxy Settings")
("socks-v4" "Proxy Settings")
("socks-auth" "Proxy Settings")
("esmtp-allowed-mech" "ESMTP Authentication Settings")
("esmtp-require-encryption" "ESMTP Authentication Settings")
("esmtp-auth-id" "ESMTP Authentication Settings")
("esmtp-authz-id" "ESMTP Authentication Settings")
("esmtp-password" "ESMTP Authentication Settings")
("esmtp-auth" "ESMTP Authentication Settings")
("esmtp-service" "ESMTP Authentication Settings")
("esmtp-hostname" "ESMTP Authentication Settings")
("esmtp-generic-service" "ESMTP Authentication Settings")
("esmtp-passcode" "ESMTP Authentication Settings")
("esmtp-realm" "ESMTP Authentication Settings")
("esmtp-anonymous-token" "ESMTP Authentication Settings")
("ssl" "Encryption Settings")
("ssl-oneway" "Encryption Settings")
("ssl-cert" "Encryption Settings")
("ssl-key" "Encryption Settings")
("ssl-cafile" "Encryption Settings")
("allow-local-mta" "Security Settings")
("drop-unknown-user" "Security Settings")
("user-notprivileged" "Security Settings")
("rule-priority" "Security Settings")
("control-priority" "Security Settings")
("stop" "Stop Action")
("call" "Call Action")
("add" "Adding Headers or Text")
("remove" "Removing Headers")
("modify" "Modifying Messages")
("signature-file-append" "Inserting Files")
("body-append" "Inserting Files")
("body-clear" "Inserting Files")
("body-clear-append" "Inserting Files")
("gpg-passphrase" "Mail Encryption")
("gpg-encrypt" "Mail Encryption")
("gpg-sign" "Mail Encryption")
("gpg-sign-encrypt" "Mail Encryption")
("gpg-se" "Mail Encryption")
("external-body-processor" "External Processor")
("guile-process" "Invoking Guile Actions")
("guile-output" "GUILE Section")
("guile-debug" "GUILE Section")
("guile-load-path-append" "GUILE Section")
("guile-load-program" "GUILE Section")
("if" "Conditional Statements")
("fi" "Conditional Statements")
("else" "Conditional Statements")
("trigger" "Triggers")
("rule" "Triggers")
(":regex" "Regular Expressions")
(":re" "Regular Expressions")
(":perl" "Regular Expressions")
(":perlre" "Regular Expressions")
(":exact" "Regular Expressions")
(":ex" "Regular Expressions")
(":scase" "Regular Expressions")
(":icase" "Regular Expressions")
(":basic" "Regular Expressions")
(":extended" "Regular Expressions")
("regex" "Regular Expressions")))
(defun anubis-describe-keywords ()
"Depending on the context invoke the appropriate info page"
(interactive)
(let* ((word (thing-at-point 'word))
(elt (assoc word anubis-keyword-nodes))
(file (if (= (length elt) 3) (nth 2 elt) "anubis"))
(node (cadr elt)))
(Info-goto-node (concat "(" file ")" node))
(if (get-buffer "*info*")
(switch-to-buffer "*info*"))))
(defconst anubis-block-dict
'((if . fi)
(trigger . done)
(rule . done)))
(defun anubis-locate-context (&optional keywords)
(save-excursion
(let ((rev-keywords (and keywords
(mapcar (lambda (x) (cons (cdr x) (car x)))
keywords)))
(cntl-stack nil)
(keylist nil)
(stop nil))
(beginning-of-line)
(if (and keywords (looking-at "^\\s *\\(\\w+\\).*$"))
(let* ((word (intern (buffer-substring (match-beginning 1)
(match-end 1))))
(blk (assoc word rev-keywords)))
(if blk
(push (cdr blk) cntl-stack))))
(while (and (not stop)
(not (bobp)))
(forward-line -1)
(cond
((looking-at "^\\s *#.*$")) ; skip comments
((looking-at "^\\s *---\\s *BEGIN\\s *\\(\\w+\\)\\s *---")
(let ((sect (intern (buffer-substring (match-beginning 1)
(match-end 1)))))
(setq keylist (append (list sect) keylist)
stop t)))
((looking-at "^\\s *BEGIN\\s *\\(\\w+\\)")
(let ((sect (intern (buffer-substring (match-beginning 1)
(match-end 1)))))
(setq keylist (append (list sect) keylist)
stop t)))
((looking-at "^\\s *\\(---\\s *\\)?END\\(\\s *---\\)?")
(setq stop (point)))
((and keywords (looking-at "^\\s *\\(\\w+\\).*$"))
(let* ((word (intern (buffer-substring (match-beginning 1)
(match-end 1))))
(blk (assoc word rev-keywords)))
(cond
(blk
(push (cdr blk) cntl-stack))
((assoc word keywords)
(if (and cntl-stack (equal (car cntl-stack) word))
(pop cntl-stack)
(setq keylist (append (list word) keylist)))))))))
(cons stop keylist))))
;; Complete a given keyword
(defun anubis-complete-keyword (word &optional prompt require-match)
(let ((dict anubis-keyword-dict)
(ctx (anubis-locate-context anubis-block-dict)))
(if (not (car ctx))
nil
(let ((dict (assoc (cadr ctx) dict)))
(if dict
(let ((compl (completing-read (or prompt "what? ")
(mapcar
(lambda (x)
(cons (symbol-name (if (listp x)
(car x)
x))
nil))
(cdr dict))
nil require-match word nil)))
(or compl word)))))))
(defun anubis-shift-amount ()
(let ((keylist (anubis-locate-context anubis-block-dict))
(nesting-level (function (lambda (klist)
(let ((len (length klist)))
(if (and klist
(equal (car klist) 'if)
(save-excursion
(beginning-of-line)
(looking-at "\\s *else")))
(1- len)
len))))))
(cond
((or (not keylist) (numberp (car keylist)))
0)
((car keylist)
(+ anubis-section-body-indent
(* (funcall nesting-level (cddr keylist)) anubis-level-indent)))
(t
(* (funcall nesting-level (cdr keylist)) anubis-level-indent)))))
(defun anubis-indent-line ()
(let* ((start-of-line (save-excursion
(beginning-of-line)
(skip-syntax-forward "\\s *")
(point)))
(off (- (point) start-of-line))
(shift-amt (anubis-shift-amount)))
(if (null shift-amt)
()
(beginning-of-line)
(delete-region (point) start-of-line)
(indent-to shift-amt))
(goto-char (+ (point) off))))
(defun anubis-complete-or-indent (arg)
"Complete the keyword the point stays on or indent the current line"
(interactive "p")
(let* ((here (point))
(off 0)
(bound (save-excursion
(beginning-of-line)
(point))))
(if (and
(or (eolp) (looking-at "\\s "))
(search-backward-regexp "^\\s *\\(\\w+\\)" bound t))
(let* ((from (match-beginning 1))
(to (match-end 1))
(word (buffer-substring from to)))
(if (= to here)
;; Process a keyword
(let ((compl (anubis-complete-keyword word "keyword: ")))
(cond
((and compl (not (string-equal compl word)))
(delete-region from to)
(goto-char from)
(insert compl)
(setq off (- (point) here)))))
;; FIXME: Process the argument
)
(goto-char (+ here off)) )
(anubis-indent-line) )))
(defun anubis-check-syntax (arg)
"Checks the syntax of the current Anubis RC buffer. Optional argument
specifies the detail level (from 0 to 3)."
(interactive "p")
(compile (concat
(if anubis-path anubis-path "anubis")
" --check="
(number-to-string (or current-prefix-arg 0))
" --norc --relax --altrc "
(buffer-file-name))))
;;;###autoload
(defun anubis-mode ()
"Major mode for editing GNU Anubis configuration files.
Key bindings:
\\{anubis-mode-map}
"
(interactive)
(kill-all-local-variables)
(set-syntax-table anubis-mode-syntax-table)
(make-local-variable 'indent-line-function)
(set (make-local-variable 'compile-command) "")
(setq major-mode 'anubis-mode
mode-name "Anubis-Config"
local-abbrev-table anubis-mode-abbrev-table
indent-line-function 'anubis-indent-line
completion-ignore-case t)
(use-local-map anubis-mode-map)
(make-local-variable 'font-lock-defaults)
(setq font-lock-defaults
'((anubis-font-lock-keywords)
nil t (("+-*/.<>=!?$%_&~^:" . "w")) beginning-of-defun
(font-lock-mark-block-function . mark-defun))) )
(require 'info)
(provide 'anubis-mode)
;;; anubis-mode ends
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