466 lines
15 KiB
EmacsLisp
466 lines
15 KiB
EmacsLisp
;;; ts-mode.el --- An Emacs major mode for editing TypoScript files
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;; Copyright (C) 2009 Joachim Mathes
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;;
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;; Author: Joachim Mathes <joachim <underscore> mathes <at> web <dot> de>
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;; Created: July 2009
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;; Version: 0.1
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;; Last-Updated: Thu Aug 13 00:18:18 CEST 2009
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;; By: Joachim Mathes
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;; Update #: 4
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;; Keywords: files
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;; URL: http://www.emacswiki.org/emacs/ts-mode.el
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;; EmacsWiki: TypoScriptMode
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;; This file is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;; This file is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; 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 GNU Emacs; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;; Commentary:
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;; Installation:
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;; To install just drop this file into a directory on your load-path and
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;; byte-compile it. To set up Emacs to automatically edit files ending in ".ts"
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;; using ts-mode add the following to your ~/.emacs file (GNU Emacs) or
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;; ~/.xemacs/init.el file (XEmacs):
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;; (setq auto-mode-alist (cons '("\\.ts$" . ts-mode) auto-mode-alist))
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;; (autoload 'ts-mode "ts-mode" "TypoScript file editing mode." t)
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;; Description:
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;; This is a major mode for editing TypoScript input files. It is developed to
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;; support syntax highlighting, indentation and folding of blocks.
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;; This file is *NOT* part of GNU Emacs.
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;;; History:
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;;
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;;; Code:
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(defconst ts-version "0.1"
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"`ts-mode' version number.")
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;; User definable variables
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;; vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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(defgroup typoscript nil
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"Major mode for editing TypoScript files."
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:prefix "ts-"
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:group 'languages)
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(defcustom ts-newline-function 'newline-and-indent
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"Function to be called upon pressing `RET'."
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:type '(choice (const newline)
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(const newline-and-indent)
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(const reindent-then-newline-and-indent))
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:group 'typoscript)
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(defcustom ts-block-indentation 2
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"The indentation relative to a predecessing line which begins a new block.
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In TypoScript blocks start with the left parenthesis `(' or the left brace
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`{'."
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:type 'integer
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:group 'typoscript)
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(defcustom ts-fold-foreground-color "white"
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"The foreground color used to highlight the folded block.
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The default value is `white'. For a list of all available colors use `M-x
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list-colors-display'"
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:type 'color
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:group 'typoscript)
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(defcustom ts-fold-background-color "DodgerBlue1"
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"The background color used to highlight the folded block.
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The default value is `DodgerBlue1'. For a list of all available colors use
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`M-x list-colors-display'"
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:type 'color
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:group 'typoscript)
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;; Internal variables
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;; vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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(defvar ts-mode-hook nil
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"Hook called by `ts-mode'.")
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(defvar ts-classes-face 'ts-classes-face
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"Face for TypoScript classes.")
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(make-face 'ts-classes-face)
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(defvar ts-path-face 'ts-path-face
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"Face for TypoScript paths.")
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(make-face 'ts-path-face)
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(defvar ts-block-face 'ts-block-face
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"Face for TypoScript blocks.")
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(make-face 'ts-block-face)
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(defvar ts-conditional-face 'ts-conditional-face
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"Face for TypoScript conditionals.")
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(make-face 'ts-conditional-face)
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(defvar ts-html-face 'ts-html-face
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"Face for TypoScript HTML tags.")
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(make-face 'ts-html-face)
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(defun ts-font-lock-mode-hook ()
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"Defines a TypoScript font lock mode hook."
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(or (face-differs-from-default-p 'ts-classes-face)
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(copy-face 'font-lock-keyword-face 'ts-classes-face))
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(copy-face 'font-lock-builtin-face 'ts-path-face)
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(set-face-foreground 'ts-path-face
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"DarkTurquoise" nil)
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(copy-face 'font-lock-builtin-face 'ts-block-face)
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(set-face-foreground 'ts-block-face
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"DodgerBlue1" nil)
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(copy-face 'font-lock-builtin-face 'ts-conditional-face)
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(set-face-foreground 'ts-conditional-face
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"maroon" nil)
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(copy-face 'font-lock-builtin-face 'ts-html-face)
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(set-face-foreground 'ts-html-face
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"ForestGreen" nil))
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(defvar ts-font-lock-keywords
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(let ((kw1 (mapconcat 'identity
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;; Basic TypoScript classes
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'("CONFIG" "PAGE" "TEXT" "COA" "COA_INT"
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"FILE" "IMAGE" "GIFBUILDER" "CASE" "TEMPLATE"
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"HMENU" "GMENU" "CONTENT")
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"\\|")))
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(list
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;; Paths
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'("^[ \t]*\\([[:alnum:]-_\\.]+\\)[ \t]*[=<>]" 1 'ts-path-face)
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;; Blocks
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'("^[ \t]*\\([[:alnum:]-_\\.]+\\)[ \t]*[{(]" 1 'ts-block-face)
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;; Periods
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;;'("^[ \t]*" "\\(\\.\\)" nil nil (1 'default t))
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;; Classes (keywords)
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(list (concat "\\<\\(" kw1 "\\)\\>") 1 'ts-classes-face t)
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;; Conditional expressions `[...]'
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'("^[ \t]*\\(\\[.+?\\]\\)[ \t]*$" 1 'ts-conditional-face)
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;; Comment lines beginning with hash symbol `#'
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'("^[ \t]*\\(#.*\\)$" 1 'font-lock-comment-face)
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;; HTML special character encodings on the right side of the operator
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'("\\(=\\|=<\\|>\\|:=\\)" "\\(&[#[:alnum:]]+;\\)" nil nil (0 'ts-html-face))
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;; HTML tags
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'("=<?\\|>\\|:=\\|[ \t]*" "\\(<[^<]+?>\\)" nil nil (0 'ts-html-face))
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;; HTML color definitions
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'("#[[:xdigit:]]\\{6\\}[ \t\n]+" 0 'ts-html-face t)))
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"Expressions to highlight in TypoScript mode.")
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(defvar ts-mode-syntax-table nil
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"Syntax table used in TypoScript Mode buffers.")
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(defvar ts-mode-map ()
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"Key map used in TypoScript Mode buffers.")
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(defvar ts-highlight-overlays [nil nil]
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"A vector of different overlay to do highlighting.
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This vector concerns only highlighting of horizontal lines.")
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;; Functions
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;; vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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;;;###autoload
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(defun ts-mode ()
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"Major mode for editing TypoScript files.
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Bug reports, suggestions for new features and critics should go to
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`joachim_mathes@web.de'.
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This mode knows about syntax highlighting, indentation and folding of
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blocks.
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COMMANDS
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\\{ts-mode-map}
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VARIABLES
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ts-newline-function\t\tbehaviour after pressing `RET'
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ts-block-indentation\t\tindentation value
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ts-fold-foreground-color\t\tforeground color of folded measurement block
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ts-fold-background-color\t\tbackground color of folded measurement block"
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(interactive)
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;; Set up local variables
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(kill-all-local-variables)
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(make-local-variable 'font-lock-defaults)
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(make-local-variable 'comment-start)
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(make-local-variable 'comment-end)
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(make-local-variable 'comment-start-skip)
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(make-local-variable 'indent-line-function)
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(make-local-variable 'defun-prompt-regexp)
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(when (not ts-mode-syntax-table)
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(setq ts-mode-syntax-table (make-syntax-table))
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;; Parenthesis, brackets and braces
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(modify-syntax-entry ?\( "()" ts-mode-syntax-table)
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(modify-syntax-entry ?\) ")(" ts-mode-syntax-table)
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(modify-syntax-entry ?\[ "(]" ts-mode-syntax-table)
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(modify-syntax-entry ?\] ")[" ts-mode-syntax-table)
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(modify-syntax-entry ?\{ "(}" ts-mode-syntax-table)
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(modify-syntax-entry ?\} "){" ts-mode-syntax-table)
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;; Comment delimiters
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(modify-syntax-entry ?/ ". 124b" ts-mode-syntax-table)
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(modify-syntax-entry ?* ". 23" ts-mode-syntax-table)
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(modify-syntax-entry ?\n "> b" ts-mode-syntax-table)
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(modify-syntax-entry ?\" "." ts-mode-syntax-table)
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(modify-syntax-entry ?. "." ts-mode-syntax-table))
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(set-syntax-table ts-mode-syntax-table)
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(add-hook 'font-lock-mode-hook 'ts-font-lock-mode-hook)
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(setq defun-prompt-regexp "^[ \t]*\\([[:alnum:]-_\\.]+\\)[ \t]*")
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(if ts-mode-map
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nil
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(setq ts-mode-map (make-sparse-keymap))
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(define-key ts-mode-map "\r" 'ts-newline)
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(define-key ts-mode-map "\C-c\C-e" 'ts-fold-block)
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(define-key ts-mode-map "\C-c\C-a" 'ts-unfold-block)
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(define-key ts-mode-map "\C-c\C-u\C-r" 'ts-unfold-region)
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(define-key ts-mode-map "\C-c\C-u\C-b" 'ts-unfold-buffer)
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(define-key ts-mode-map "}" 'ts-electric-brace)
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(define-key ts-mode-map ")" 'ts-electric-brace))
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(use-local-map ts-mode-map)
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(setq major-mode 'ts-mode
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mode-name "TypoScript"
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font-lock-defaults '(ts-font-lock-keywords)
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comment-start "# "
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comment-end ""
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comment-start-skip "# "
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indent-line-function 'ts-indent-line)
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;; Run the mode hook.
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(if ts-mode-hook
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(run-hooks 'ts-mode-hook)))
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(defun ts-newline ()
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"Call the dedicated newline function.
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The variable `ts-newline-function' decides which newline function to
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use."
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(interactive)
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(funcall ts-newline-function))
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(defun ts-indent-line ()
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"Indent current line for TypoScript mode."
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(let ((cp (point)) ; current point
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(cc (current-column)) ; current column
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(ci (current-indentation)) ; current indentation
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(cl (line-number-at-pos)) ; current line
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(counter 0)
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ps ; parser state
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psp ; parser state position
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save-indent-column)
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;; Evaluate parser state
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(save-excursion
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(beginning-of-line)
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(setq ps (ts-parser-state))
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(cond
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;; Check if parser state position is:
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;; -> Inside a comment
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((nth 8 ps)
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(setq psp (nth 8 ps))
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(goto-char psp)
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(setq save-indent-column (+ (current-column)
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1)))
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;; Check if parser state position is:
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;; -> Inside a parenthetical grouping
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((nth 1 ps)
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(setq psp (nth 1 ps))
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(cond
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;; Check if point is looking at a string and a closing curly brace
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((looking-at "[ \t[:alnum:]]*[)}]")
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(goto-char psp)
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(back-to-indentation)
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(setq save-indent-column (current-column)))
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(t
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(goto-char psp)
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(back-to-indentation)
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(setq save-indent-column (+ (current-column)
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ts-block-indentation)))))
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;; Check if parser state position is:
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;; -> nil
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(t
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;; Skip empty lines
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(forward-line -1)
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(while (and (looking-at "^[ \t]*\n")
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(not (bobp)))
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(forward-line -1))
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(back-to-indentation)
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(setq save-indent-column (current-column)))))
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;; Set indentation value on current line
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(back-to-indentation)
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(backward-delete-char-untabify (current-column))
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(indent-to save-indent-column)
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(if (> cc ci)
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(forward-char (- cc ci)))))
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(defun ts-parser-state ()
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"Return the parser state at point."
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(save-excursion
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(let ((here (point))
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sps)
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;; For correct indentation the character position of the start of the
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;; innermost parenthetical grouping has to be found.
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(goto-char (point-min))
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;; Now get the parser state, i.e. the depth in parentheses.
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(save-excursion
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(setq sps (parse-partial-sexp (point) here)))
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sps)))
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(defun ts-block-start ()
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"Return buffer position of the last unclosed enclosing block.
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If nesting level is zero, return nil."
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(let ((status (ts-parser-state)))
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(if (<= (car status) 0)
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nil
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(car (cdr status)))))
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;; Electric characters
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(defun ts-electric-brace (arg)
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"Insert closing brace.
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Argument ARG prefix."
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(interactive "*P")
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;; Insert closing brace.
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(self-insert-command (prefix-numeric-value arg))
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(when (and (looking-at "[ \t]*$")
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(looking-back "^[ \t]*[})]"))
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(ts-indent-line)))
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;; Folding
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(defun ts-fold-block ()
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"Hide the block on which point currently is located."
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(interactive)
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(let ((current-point (point))
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(block-start (ts-block-start)))
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(if (not block-start)
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(message "Point is not within a block.")
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;; Look for block start
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(save-excursion
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(goto-char (ts-block-start))
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(beginning-of-line)
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(setq block-start (point)))
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(when block-start
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(let ((block-name
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;; Save block name
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(save-excursion
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(goto-char block-start)
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(beginning-of-line)
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(looking-at
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"^[ \t]*\\(.*?\\)[ \t]*{")
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(match-string 1)))
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(block-end
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;; Look for block end
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(save-excursion
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(goto-char block-start)
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(forward-list)
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(point)))
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;; Variable for overlay
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skampi-overlay)
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;; ------------------------------------------------------------------
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;; The following local variables are defined up to here:
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;; [1] block-start: point of block start, at the beginning
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;; of the line; nil otherwise
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;; [2] block-name : name of block, i.e. the object path
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;; [3] block-end : point of block end, at the end of the
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;; line which contains the closing curly brace `}
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;; ------------------------------------------------------------------
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;; Check if end of measurement block is beyond point;
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;; call fold function otherwise
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(if (>= block-end current-point)
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(ts-fold block-start block-end block-name)
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(message "Error: No valid block found."))
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;; Indent overlay
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(goto-char block-start)
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(beginning-of-line)
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(ts-indent-line))))))
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(defun ts-fold (block-start block-end block-name)
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"Fold block.
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The block starts at BLOCK-START and ends at BLOCK-END. Its
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BLOCK-NAME is the TypoScript object path."
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(let (ts-overlay)
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;; Check if block-start and block-end are valid values, i.e. not nil
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(if (or (eq block-start nil)
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(eq block-end nil))
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(message "Error: No valid block found.")
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;; Make an overlay and hide block
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(setq ts-overlay (make-overlay block-start block-end
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(current-buffer) t nil))
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(overlay-put ts-overlay 'category 'ts-fold)
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(overlay-put ts-overlay 'evaporate t)
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(overlay-put ts-overlay 'mouse-face 'highlight)
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(overlay-put ts-overlay 'display (concat "["
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(propertize block-name
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'face
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nil)
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"]"))
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(overlay-put ts-overlay 'font-lock-face `(:foreground ,ts-fold-foreground-color
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:background ,ts-fold-background-color))
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(overlay-put ts-overlay 'help-echo (concat
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"Folded block: "
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block-name)))))
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(defun ts-unfold-buffer ()
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"Unfold all blocks in the buffer."
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(interactive)
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(ts-unfold-region (point-min) (point-max)))
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(defun ts-unfold-region (start end)
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"Unfold all blocks in the region.
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The region delimiters are START and END."
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(interactive "r")
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(let ((ts-overlays (overlays-in start end)))
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(ts-unfold-overlays ts-overlays)))
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(defun ts-unfold-block ()
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"Unfold block at point."
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(interactive)
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(let ((ts-overlays (overlays-at (point))))
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(ts-unfold-overlays ts-overlays)))
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(defun ts-unfold-overlays (ts-overlays)
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"Unfold all overlays set by ts-fold in TS-OVERLAYS.
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Return non-nil if an unfold happened, nil otherwise."
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(let (found)
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(dolist (overlay ts-overlays)
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(when (eq (overlay-get overlay 'category) 'ts-fold)
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(delete-overlay overlay)
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(setq found t)))
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found))
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(provide 'ts-mode)
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;;; ts-mode.el ends here
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