248 lines
9.0 KiB
EmacsLisp
248 lines
9.0 KiB
EmacsLisp
;;; puml-mode.el --- Major mode for PlantUML
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;; Filename: puml-mode.el
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;; Description: Major mode for PlantUML diagrams sources
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;; Compatibility: Tested with Emacs 24.3 through 24.5 on OS X 10.10
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;; Author: Zhang Weize (zwz)
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;; Maintainer: Carlo Sciolla (skuro)
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;; Keywords: uml plantuml ascii
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;; Version: 0.6
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;; You can redistribute this program and/or modify it under the terms
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;; of the GNU General Public License as published by the Free Software
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;; Foundation; either version 2
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;; NOTE: licensing fixed to GPLv2 as per original author comment
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;;; Commentary:
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;;
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;; A major mode for plantuml, see: http://plantuml.sourceforge.net/
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;; Plantuml is an open-source tool in java that allows to quickly write :
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;; - sequence diagram,
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;; - use case diagram,
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;; - class diagram,
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;; - activity diagram,
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;; - component diagram,
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;; - state diagram
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;; - object diagram
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;;; Change log:
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;;
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;; version 0.6, 2015-09-26 Fixed PNG preview
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;; version 0.5, 2015-09-21 Added preview capabilities
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;; version 0.4, 2015-06-14 Use a puml- prefix to distinguish from the other plantuml-mode
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;; version 0.3, 2015-06-13 Compatibility with Emacs 24.x
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;; version 0.2, 2010-09-20 Initialize the keywords from the -language output of plantuml.jar instead of the hard-coded way.
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;; version 0.1, 2010-08-25 First version
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;;; Code:
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(require 'thingatpt)
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(defgroup puml-mode nil
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"Major mode for editing plantuml file."
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:group 'languages)
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(defcustom puml-plantuml-jar-path
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(expand-file-name "~/plantuml.jar")
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"The location of the PlantUML executable JAR.")
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(defvar puml-mode-hook nil "Standard hook for puml-mode.")
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(defvar puml-mode-version "0.4" "The puml-mode version string.")
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(defvar puml-mode-map nil "Keymap for puml-mode.")
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;;; syntax table
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(defvar puml-mode-syntax-table
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(let ((synTable (make-syntax-table)))
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(modify-syntax-entry ?' "< b" synTable)
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(modify-syntax-entry ?\n "> b" synTable)
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(modify-syntax-entry ?! "w" synTable)
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(modify-syntax-entry ?@ "w" synTable)
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(modify-syntax-entry ?# "'" synTable)
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synTable)
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"Syntax table for `puml-mode'.")
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(defvar puml-plantuml-types nil)
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(defvar puml-plantuml-keywords nil)
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(defvar puml-plantuml-preprocessors nil)
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(defvar puml-plantuml-builtins nil)
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;; keyword completion
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(defvar puml-plantuml-kwdList nil "The plantuml keywords.")
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;;; font-lock
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(defun puml-init ()
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"Initialize the keywords or builtins from the cmdline language output."
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(unless (file-exists-p puml-plantuml-jar-path)
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(error "Could not find plantuml.jar at %s" puml-plantuml-jar-path))
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(with-temp-buffer
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(shell-command (concat "java -jar "
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(shell-quote-argument puml-plantuml-jar-path)
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" -language") (current-buffer))
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(goto-char (point-min))
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(let ((found (search-forward ";" nil t))
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(word "")
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(count 0)
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(pos 0))
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(while found
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(forward-char)
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(setq word (current-word))
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(if (string= word "EOF") (setq found nil)
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;; else
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(forward-line)
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(setq count (string-to-number (current-word)))
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(beginning-of-line 2)
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(setq pos (point))
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(forward-line count)
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(cond ((string= word "type")
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(setq puml-plantuml-types
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(split-string
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(buffer-substring-no-properties pos (point)))))
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((string= word "keyword")
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(setq puml-plantuml-keywords
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(split-string
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(buffer-substring-no-properties pos (point)))))
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((string= word "preprocessor")
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(setq puml-plantuml-preprocessors
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(split-string
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(buffer-substring-no-properties pos (point)))))
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(t (setq puml-plantuml-builtins
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(append
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puml-plantuml-builtins
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(split-string
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(buffer-substring-no-properties pos (point)))))))
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;; ((string= word "skinparameter")
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;; ((string= word "color")))
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(setq found (search-forward ";" nil nil)))))))
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(defconst puml-preview-buffer "*PUML Preview*")
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(defun puml-output-type ()
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"Detects the best output type to use for generated diagrams."
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(cond ((image-type-available-p 'svg) 'svg)
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((image-type-available-p 'png) 'png)
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('utxt)))
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(defun puml-is-image-output-p ()
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"Return true if the diagram output format is an image, false if it's text based."
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(not (equalp 'utxt
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(puml-output-type))))
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(defun puml-output-type-opt ()
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"Create the flag to pass to PlantUML to produce the selected output format."
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(let ((type (puml-output-type)))
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(concat "-t" (symbol-name type))))
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(defun puml-preview-sentinel (ps event)
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"For the PlantUML process (as PS) reacts on the termination event (as EVENT)."
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(if (equal event "finished\n")
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(progn
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(switch-to-buffer puml-preview-buffer)
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(when (and (display-images-p)
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(puml-is-image-output-p))
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(image-mode)))
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(warn "PUML Preview failed: %s" event)))
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(defun puml-preview ()
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"Preview diagram."
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(interactive)
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(let ((b (get-buffer puml-preview-buffer)))
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(when b
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(kill-buffer b)))
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(let ((process-connection-type nil)
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(buf (get-buffer-create puml-preview-buffer))
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(coding-system-for-read 'binary)
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(coding-system-for-write 'binary))
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(let ((ps (start-process "PUML" buf
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"java" "-jar" (shell-quote-argument puml-plantuml-jar-path)
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(puml-output-type-opt) "-p")))
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(process-send-region ps (point-min) (point-max))
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(process-send-eof ps)
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(set-process-sentinel ps 'puml-preview-sentinel))))
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(unless puml-plantuml-kwdList
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(puml-init)
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(defvar puml-plantuml-types-regexp (concat "^\\s *\\(" (regexp-opt puml-plantuml-types 'words) "\\|\\<\\(note\\s +over\\|note\\s +\\(left\\|right\\|bottom\\|top\\)\\s +\\(of\\)?\\)\\>\\|\\<\\(\\(left\\|center\\|right\\)\\s +\\(header\\|footer\\)\\)\\>\\)"))
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(defvar puml-plantuml-keywords-regexp (concat "^\\s *" (regexp-opt puml-plantuml-keywords 'words) "\\|\\(<\\|<|\\|\\*\\|o\\)\\(\\.+\\|-+\\)\\|\\(\\.+\\|-+\\)\\(>\\||>\\|\\*\\|o\\)\\|\\.\\{2,\\}\\|-\\{2,\\}"))
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(defvar puml-plantuml-builtins-regexp (regexp-opt puml-plantuml-builtins 'words))
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(defvar puml-plantuml-preprocessors-regexp (concat "^\\s *" (regexp-opt puml-plantuml-preprocessors 'words)))
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(setq puml-font-lock-keywords
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`(
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(,puml-plantuml-types-regexp . font-lock-type-face)
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(,puml-plantuml-keywords-regexp . font-lock-keyword-face)
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(,puml-plantuml-builtins-regexp . font-lock-builtin-face)
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(,puml-plantuml-preprocessors-regexp . font-lock-preprocessor-face)
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;; note: order matters
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))
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(setq puml-plantuml-kwdList (make-hash-table :test 'equal))
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(mapc (lambda (x) (puthash x t puml-plantuml-kwdList)) puml-plantuml-types)
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(mapc (lambda (x) (puthash x t puml-plantuml-kwdList)) puml-plantuml-keywords)
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(mapc (lambda (x) (puthash x t puml-plantuml-kwdList)) puml-plantuml-builtins)
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(mapc (lambda (x) (puthash x t puml-plantuml-kwdList)) puml-plantuml-preprocessors)
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(put 'puml-plantuml-kwdList 'risky-local-variable t)
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;; clear memory
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(setq puml-plantuml-types nil)
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(setq puml-plantuml-keywords nil)
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(setq puml-plantuml-builtins nil)
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(setq puml-plantuml-preprocessors nil)
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(setq puml-plantuml-types-regexp nil)
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(setq puml-plantuml-keywords-regexp nil)
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(setq puml-plantuml-builtins-regexp nil)
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(setq puml-plantuml-preprocessors-regexp nil))
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(defun puml-complete-symbol ()
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"Perform keyword completion on word before cursor."
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(interactive)
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(let ((posEnd (point))
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(meat (thing-at-point 'symbol))
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maxMatchResult)
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(when (not meat) (setq meat ""))
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(setq maxMatchResult (try-completion meat puml-plantuml-kwdList))
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(cond ((eq maxMatchResult t))
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((null maxMatchResult)
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(message "Can't find completion for \"%s\"" meat)
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(ding))
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((not (string= meat maxMatchResult))
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(delete-region (- posEnd (length meat)) posEnd)
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(insert maxMatchResult))
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(t (message "Making completion list...")
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(with-output-to-temp-buffer "*Completions*"
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(display-completion-list
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(all-completions meat puml-plantuml-kwdList)))
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(message "Making completion list...%s" "done")))))
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(add-to-list 'auto-mode-alist '("\\.pum$" . puml-mode))
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;;;###autoload
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(defun puml-mode ()
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"Major mode for plantuml.
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Shortcuts Command Name
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\\[puml-complete-symbol] `puml-complete-symbol'"
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(interactive)
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(kill-all-local-variables)
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;; (python-mode) ; for indentation
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(setq major-mode 'puml-mode
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mode-name "puml")
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(set-syntax-table puml-mode-syntax-table)
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(use-local-map puml-mode-map)
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(make-local-variable 'font-lock-defaults)
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(setq font-lock-defaults '((puml-font-lock-keywords) nil t))
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(local-set-key (kbd "C-c C-c") 'puml-preview)
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(run-mode-hooks 'puml-mode-hook))
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(provide 'puml-mode)
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;;; puml-mode.el ends here
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