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2669 lines
107 KiB
EmacsLisp
2669 lines
107 KiB
EmacsLisp
;;; antlr-mode.el --- major mode for ANTLR grammar files
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;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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;; Free Software Foundation, Inc.
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;;
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;; Author: Christoph.Wedler@sap.com
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;; Keywords: languages, ANTLR, code generator
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;; Version: (see `antlr-version' below)
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;; X-URL: http://antlr-mode.sourceforge.net/
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;; This file is part of GNU Emacs.
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;; GNU Emacs 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 2, or (at your option)
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;; any later version.
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;; GNU Emacs 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 the
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;; 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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;; The Emacs package ANTLR-Mode provides: syntax highlighting for ANTLR grammar
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;; files, automatic indentation, menus containing rule/token definitions and
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;; supported options and various other things like running ANTLR from within
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;; Emacs.
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;; For details, check <http://antlr-mode.sourceforge.net/> or, if you prefer
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;; the manual style, follow all commands mentioned in the documentation of
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;; `antlr-mode'. ANTLR is a LL(k)-based recognition tool which generates
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;; lexers, parsers and tree transformers in Java, C++ or Sather and can be
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;; found at <http://www.antlr.org/>.
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;; Bug fixes, bug reports, improvements, and suggestions for the newest version
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;; are strongly appreciated.
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;; To-do/Wish-list:
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;;
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;; * Next Version [C-c C-w]. Produce HTML document with syntax highlighted
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;; and hyper-links (using htmlize).
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;; * Next Version [C-c C-u]. Insert/update special comments: each rule lists
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;; all rules which use the current rule. With font-lock update.
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;; * Next Version. Make hiding much more customizable.
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;; * Planned [C-c C-j]. Jump to generated coding.
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;; * Planned. Further support for imenu, i.e., include entries for method
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;; definitions at beginning of grammar class.
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;; * Planned [C-c C-p]. Pack/unpack rule/subrule & options (one/multi-line).
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;;
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;; * Probably. Show rules/dependencies for ANT like for Makefile (does ANT
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;; support vocabularies and grammar inheritance?), I have to look at
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;; jde-ant.el: http://jakarta.apache.org/ant/manual/OptionalTasks/antlr.html
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;; * Probably. Make `indent-region' faster, especially in actions. ELP
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;; profiling in a class init action shows half the time is spent in
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;; `antlr-next-rule', the other half in `c-guess-basic-syntax'.
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;; * Unlikely. Sather as generated language with syntax highlighting etc/.
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;; Questions/problems: is sather-mode.el the standard mode for sather, is it
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;; still supported, what is its relationship to eiffel3.el? Requirement:
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;; this mode must not depend on a Sather mode.
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;; * Unlikely. Faster syntax highlighting: sectionize the buffer into Antlr
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;; and action code and run special highlighting functions on these regions.
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;; Problems: code size, this mode would depend on font-lock internals.
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;;; Installation:
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;; This file requires Emacs-20.3, XEmacs-20.4 or higher and package cc-mode.
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;; If antlr-mode is not part of your distribution, put this file into your
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;; load-path and the following into your ~/.emacs:
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;; (autoload 'antlr-mode "antlr-mode" nil t)
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;; (setq auto-mode-alist (cons '("\\.g\\'" . antlr-mode) auto-mode-alist))
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;; (add-hook 'speedbar-load-hook ; would be too late in antlr-mode.el
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;; (lambda () (speedbar-add-supported-extension ".g")))
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;; I strongly recommend to use font-lock with a support mode like fast-lock,
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;; lazy-lock or better jit-lock (Emacs-21.1+) / lazy-shot (XEmacs).
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;; To customize, use menu item "Antlr" -> "Customize Antlr".
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;;; Code:
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(provide 'antlr-mode)
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(require 'easymenu)
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;; General Emacs/XEmacs-compatibility compile-time macros
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(eval-when-compile
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(require 'cl)
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(defmacro cond-emacs-xemacs (&rest args)
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(cond-emacs-xemacs-macfn
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args "`cond-emacs-xemacs' must return exactly one element"))
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(defun cond-emacs-xemacs-macfn (args &optional msg)
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(if (atom args) args
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(and (eq (car args) :@) (null msg) ; (:@ ...spliced...)
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(setq args (cdr args)
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msg "(:@ ....) must return exactly one element"))
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(let ((ignore (if (string-match "XEmacs" emacs-version) :EMACS :XEMACS))
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(mode :BOTH) code)
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(while (consp args)
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(if (memq (car args) '(:EMACS :XEMACS :BOTH)) (setq mode (pop args)))
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(if (atom args)
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(or args (error "Used selector %s without elements" mode))
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(or (eq ignore mode)
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(push (cond-emacs-xemacs-macfn (car args)) code))
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(pop args)))
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(cond (msg (if (or args (cdr code)) (error msg) (car code)))
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((or (null args) (eq ignore mode)) (nreverse code))
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(t (nconc (nreverse code) args))))))
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;; Emacs/XEmacs-compatibility `defun': remove interactive "_" for Emacs, use
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;; existing functions when they are `fboundp', provide shortcuts if they are
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;; known to be defined in a specific Emacs branch (for short .elc)
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(defmacro defunx (name arglist &rest definition)
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(let ((xemacsp (string-match "XEmacs" emacs-version)) reuses)
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(while (memq (car definition)
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'(:try :emacs-and-try :xemacs-and-try))
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(if (eq (pop definition) (if xemacsp :xemacs-and-try :emacs-and-try))
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(setq reuses (car definition)
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definition nil)
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(push (pop definition) reuses)))
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(if (and reuses (symbolp reuses))
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`(defalias ',name ',reuses)
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(let* ((docstring (if (stringp (car definition)) (pop definition)))
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(spec (and (not xemacsp)
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(eq (car-safe (car definition)) 'interactive)
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(null (cddar definition))
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(cadar definition))))
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(if (and (stringp spec)
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(not (string-equal spec ""))
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(eq (aref spec 0) ?_))
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(setq definition
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(cons (if (string-equal spec "_")
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'(interactive)
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`(interactive ,(substring spec 1)))
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(cdr definition))))
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(if (null reuses)
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`(defun ,name ,arglist ,docstring
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,@(cond-emacs-xemacs-macfn definition))
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;; no dynamic docstring in this case
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`(eval-and-compile ; no warnings in Emacs
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(defalias ',name
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(cond ,@(mapcar (lambda (func) `((fboundp ',func) ',func))
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(nreverse reuses))
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(t ,(if definition
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`(lambda ,arglist ,docstring
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,@(cond-emacs-xemacs-macfn definition))
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'ignore))))))))))
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(defmacro ignore-errors-x (&rest body)
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(let ((specials '((scan-sexps . 4) (scan-lists . 5)))
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spec nils)
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(if (and (string-match "XEmacs" emacs-version)
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(null (cdr body)) (consp (car body))
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(setq spec (assq (caar body) specials))
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(>= (setq nils (- (cdr spec) (length (car body)))) 0))
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`(,@(car body) ,@(make-list nils nil) t)
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`(ignore-errors ,@body)))))
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;; More compile-time-macros
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(eval-when-compile
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(defmacro save-buffer-state-x (&rest body) ; similar to EMACS/lazy-lock.el
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(let ((modified (with-no-warnings (gensym "save-buffer-state-x-modified-"))))
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`(let ((,modified (buffer-modified-p)))
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(unwind-protect
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(let ((buffer-undo-list t) (inhibit-read-only t)
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,@(unless (string-match "XEmacs" emacs-version)
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'((inhibit-point-motion-hooks t) deactivate-mark))
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before-change-functions after-change-functions
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buffer-file-name buffer-file-truename)
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,@body)
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(and (not ,modified) (buffer-modified-p)
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(set-buffer-modified-p nil)))))))
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(put 'save-buffer-state-x 'lisp-indent-function 0)
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;; get rid of byte-compile warnings
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(eval-when-compile ; required and optional libraries
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(require 'cc-mode)
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(ignore-errors (require 'font-lock))
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(ignore-errors (require 'compile))
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;;(ignore-errors (defun c-init-language-vars))) dangerous on Emacs!
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;;(ignore-errors (defun c-init-c-language-vars))) dangerous on Emacs!
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;;(ignore-errors (defun c-basic-common-init)) dangerous on Emacs!
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(defvar outline-level) (defvar imenu-use-markers)
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(defvar imenu-create-index-function))
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;; We cannot use `c-forward-syntactic-ws' directly since it is a macro since
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;; cc-mode-5.30 => antlr-mode compiled with older cc-mode would fail (macro
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;; call) when used with newer cc-mode. Also, antlr-mode compiled with newer
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;; cc-mode would fail (undefined `c-forward-sws') when used with older cc-mode.
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;; Additional to the `defalias' below, we must set `antlr-c-forward-sws' to
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;; `c-forward-syntactic-ws' when `c-forward-sws' is not defined after requiring
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;; cc-mode.
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(defalias 'antlr-c-forward-sws 'c-forward-sws)
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;;;;##########################################################################
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;;;; Variables
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;;;;##########################################################################
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(defgroup antlr nil
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"Major mode for ANTLR grammar files."
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:group 'languages
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:link '(emacs-commentary-link "antlr-mode.el")
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:link '(url-link "http://antlr-mode.sourceforge.net/")
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:prefix "antlr-")
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(defconst antlr-version "2.2c"
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"ANTLR major mode version number.
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Check <http://antlr-mode.sourceforge.net/> for the newest.")
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;;;===========================================================================
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;;; Controlling ANTLR's code generator (language option)
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;;;===========================================================================
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(defvar antlr-language nil
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"Major mode corresponding to ANTLR's \"language\" option.
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Set via `antlr-language-alist'. The only useful place to change this
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buffer-local variable yourself is in `antlr-mode-hook' or in the \"local
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variable list\" near the end of the file, see
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`enable-local-variables'.")
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(defcustom antlr-language-alist
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'((java-mode "Java" nil "\"Java\"" "Java")
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(c++-mode "C++" "\"Cpp\"" "Cpp"))
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"List of ANTLR's supported languages.
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Each element in this list looks like
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\(MAJOR-MODE MODELINE-STRING OPTION-VALUE...)
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MAJOR-MODE, the major mode of the code in the grammar's actions, is the
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value of `antlr-language' if the first group in the string matched by
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REGEXP in `antlr-language-limit-n-regexp' is one of the OPTION-VALUEs.
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An OPTION-VALUE of nil denotes the fallback element. MODELINE-STRING is
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also displayed in the modeline next to \"Antlr\"."
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:group 'antlr
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:type '(repeat (group :value (java-mode "")
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(function :tag "Major mode")
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(string :tag "Modeline string")
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(repeat :tag "ANTLR language option" :inline t
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(choice (const :tag "Default" nil)
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string )))))
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(defcustom antlr-language-limit-n-regexp
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'(8192 . "language[ \t]*=[ \t]*\\(\"?[A-Z][A-Za-z_]*\"?\\)")
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"Used to set a reasonable value for `antlr-language'.
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Looks like \(LIMIT \. REGEXP). Search for REGEXP from the beginning of
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the buffer to LIMIT and use the first group in the matched string to set
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the language according to `antlr-language-alist'."
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:group 'antlr
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:type '(cons (choice :tag "Limit" (const :tag "No" nil) (integer :value 0))
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regexp))
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;;;===========================================================================
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;;; Hide/Unhide, Indent/Tabs
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;;;===========================================================================
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(defcustom antlr-action-visibility 3
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"Visibility of actions when command `antlr-hide-actions' is used.
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If nil, the actions with their surrounding braces are hidden. If a
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number, do not hide the braces, only hide the contents if its length is
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greater than this number."
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:group 'antlr
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:type '(choice (const :tag "Completely hidden" nil)
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(integer :tag "Hidden if longer than" :value 3)))
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(defcustom antlr-indent-comment 'tab
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"*Non-nil, if the indentation should touch lines in block comments.
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If nil, no continuation line of a block comment is changed. If t, they
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are changed according to `c-indentation-line'. When not nil and not t,
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they are only changed by \\[antlr-indent-command]."
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:group 'antlr
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:type '(radio (const :tag "No" nil)
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(const :tag "Always" t)
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(sexp :tag "With TAB" :format "%t" :value tab)))
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(defcustom antlr-tab-offset-alist
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'((antlr-mode nil 4 nil)
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(java-mode "antlr" 4 nil))
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"Alist to determine whether to use ANTLR's convention for TABs.
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Each element looks like \(MAJOR-MODE REGEXP TAB-WIDTH INDENT-TABS-MODE).
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The first element whose MAJOR-MODE is nil or equal to `major-mode' and
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whose REGEXP is nil or matches variable `buffer-file-name' is used to
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set `tab-width' and `indent-tabs-mode'. This is useful to support both
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ANTLR's and Java's indentation styles. Used by `antlr-set-tabs'."
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:group 'antlr
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:type '(repeat (group :value (antlr-mode nil 8 nil)
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(choice (const :tag "All" nil)
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(function :tag "Major mode"))
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(choice (const :tag "All" nil) regexp)
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(integer :tag "Tab width")
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(boolean :tag "Indent-tabs-mode"))))
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(defcustom antlr-indent-style "java"
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"*If non-nil, cc-mode indentation style used for `antlr-mode'.
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See `c-set-style' and for details, where the most interesting part in
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`c-style-alist' is the value of `c-basic-offset'."
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:group 'antlr
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:type '(choice (const nil) regexp))
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(defcustom antlr-indent-item-regexp
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"[]}):;|&]" ; & is local ANTLR extension (SGML's and-connector)
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"Regexp matching lines which should be indented by one TAB less.
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See `antlr-indent-line' and command \\[antlr-indent-command]."
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:group 'antlr
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:type 'regexp)
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(defcustom antlr-indent-at-bol-alist
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;; eval-when-compile not usable with defcustom...
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'((java-mode . "\\(package\\|import\\)\\>")
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(c++-mode . "#\\(assert\\|cpu\\|define\\|endif\\|el\\(if\\|se\\)\\|i\\(dent\\|f\\(def\\|ndef\\)?\\|mport\\|nclude\\(_next\\)?\\)\\|line\\|machine\\|pragma\\|system\\|un\\(assert\\|def\\)\\|warning\\)\\>"))
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"Alist of regexps matching lines are indented at column 0.
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Each element in this list looks like (MODE . REGEXP) where MODE is a
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function and REGEXP is a regular expression.
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If `antlr-language' equals to a MODE, the line starting at the first
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non-whitespace is matched by the corresponding REGEXP, and the line is
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part of a header action, indent the line at column 0 instead according
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to the normal rules of `antlr-indent-line'."
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:group 'antlr
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:type '(repeat (cons (function :tag "Major mode") regexp)))
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;; adopt indentation to cc-engine
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(defvar antlr-disabling-cc-syntactic-symbols
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'(statement-block-intro
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defun-block-intro topmost-intro statement-case-intro member-init-intro
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arglist-intro brace-list-intro knr-argdecl-intro inher-intro
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objc-method-intro
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block-close defun-close class-close brace-list-close arglist-close
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inline-close extern-lang-close namespace-close))
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;;;===========================================================================
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;;; Options: customization
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;;;===========================================================================
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(defcustom antlr-options-use-submenus t
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"*Non-nil, if the major mode menu should include option submenus.
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If nil, the menu just includes a command to insert options. Otherwise,
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it includes four submenus to insert file/grammar/rule/subrule options."
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:group 'antlr
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:type 'boolean)
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(defcustom antlr-tool-version 20701
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"*The version number of the Antlr tool.
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The value is an integer of the form XYYZZ which stands for vX.YY.ZZ.
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This variable is used to warn about non-supported options and to supply
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version correct option values when using \\[antlr-insert-option].
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Don't use a number smaller than 20600 since the stored history of
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Antlr's options starts with v2.06.00, see `antlr-options-alists'. You
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can make this variable buffer-local."
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:group 'antlr
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:type 'integer)
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(defcustom antlr-options-auto-colon t
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"*Non-nil, if `:' is inserted with a rule or subrule options section.
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A `:' is only inserted if this value is non-nil, if a rule or subrule
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option is inserted with \\[antlr-insert-option], if there was no rule or
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subrule options section before, and if a `:' is not already present
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after the section, ignoring whitespace, comments and the init action."
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:group 'antlr
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:type 'boolean)
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(defcustom antlr-options-style nil
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"List of symbols which determine the style of option values.
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If a style symbol is present, the corresponding option value is put into
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quotes, i.e., represented as a string, otherwise it is represented as an
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identifier.
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The only style symbol used in the default value of `antlr-options-alist'
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is `language-as-string'. See also `antlr-read-value'."
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:group 'antlr
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:type '(repeat (symbol :tag "Style symbol")))
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(defcustom antlr-options-push-mark t
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"*Non-nil, if inserting an option should set & push mark.
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If nil, never set mark when inserting an option with command
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\\[antlr-insert-option]. If t, always set mark via `push-mark'. If a
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number, only set mark if point was outside the options area before and
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the number of lines between point and the insert position is greater
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than this value. Otherwise, only set mark if point was outside the
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options area before."
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:group 'antlr
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:type '(radio (const :tag "No" nil)
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(const :tag "Always" t)
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(integer :tag "Lines between" :value 10)
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(sexp :tag "If outside options" :format "%t" :value outside)))
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(defcustom antlr-options-assign-string " = "
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"*String containing `=' to use between option name and value.
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This string is only used if the option to insert did not exist before
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or if there was no `=' after it. In other words, the spacing around an
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existing `=' won't be changed when changing an option value."
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:group 'antlr
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:type 'string)
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;;;===========================================================================
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;;; Options: definitions
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;;;===========================================================================
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(defvar antlr-options-headings '("file" "grammar" "rule" "subrule")
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"Headings for the four different option kinds.
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The standard value is (\"file\" \"grammar\" \"rule\" \"subrule\"). See
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`antlr-options-alists'")
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(defvar antlr-options-alists
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'(;; file options ----------------------------------------------------------
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(("language" antlr-language-option-extra
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(20600 antlr-read-value
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"Generated language: " language-as-string
|
|
(("Java") ("Cpp") ("HTML") ("Diagnostic")))
|
|
(20700 antlr-read-value
|
|
"Generated language: " language-as-string
|
|
(("Java") ("Cpp") ("HTML") ("Diagnostic") ("Sather"))))
|
|
("mangleLiteralPrefix" nil
|
|
(20600 antlr-read-value
|
|
"Prefix for literals (default LITERAL_): " t))
|
|
("namespace" antlr-c++-mode-extra
|
|
(20700 antlr-read-value
|
|
"Wrap generated C++ code in namespace: " t))
|
|
("namespaceStd" antlr-c++-mode-extra
|
|
(20701 antlr-read-value
|
|
"Replace ANTLR_USE_NAMESPACE(std) by: " t))
|
|
("namespaceAntlr" antlr-c++-mode-extra
|
|
(20701 antlr-read-value
|
|
"Replace ANTLR_USE_NAMESPACE(antlr) by: " t))
|
|
("genHashLines" antlr-c++-mode-extra
|
|
(20701 antlr-read-boolean
|
|
"Include #line in generated C++ code? "))
|
|
)
|
|
;; grammar options --------------------------------------------------------
|
|
(("k" nil
|
|
(20600 antlr-read-value
|
|
"Lookahead depth: "))
|
|
("importVocab" nil
|
|
(20600 antlr-read-value
|
|
"Import vocabulary: "))
|
|
("exportVocab" nil
|
|
(20600 antlr-read-value
|
|
"Export vocabulary: "))
|
|
("testLiterals" nil ; lexer only
|
|
(20600 antlr-read-boolean
|
|
"Test each token against literals table? "))
|
|
("defaultErrorHandler" nil ; not for lexer
|
|
(20600 antlr-read-boolean
|
|
"Generate default exception handler for each rule? "))
|
|
("codeGenMakeSwitchThreshold" nil
|
|
(20600 antlr-read-value
|
|
"Min number of alternatives for 'switch': "))
|
|
("codeGenBitsetTestThreshold" nil
|
|
(20600 antlr-read-value
|
|
"Min size of lookahead set for bitset test: "))
|
|
("analyzerDebug" nil
|
|
(20600 antlr-read-boolean
|
|
"Display debugging info during grammar analysis? "))
|
|
("codeGenDebug" nil
|
|
(20600 antlr-read-boolean
|
|
"Display debugging info during code generation? "))
|
|
("buildAST" nil ; not for lexer
|
|
(20600 antlr-read-boolean
|
|
"Use automatic AST construction/transformation? "))
|
|
("ASTLabelType" nil ; not for lexer
|
|
(20600 antlr-read-value
|
|
"Class of user-defined AST node: " t))
|
|
("charVocabulary" nil ; lexer only
|
|
(20600 nil
|
|
"Insert character vocabulary"))
|
|
("interactive" nil
|
|
(20600 antlr-read-boolean
|
|
"Generate interactive lexer/parser? "))
|
|
("caseSensitive" nil ; lexer only
|
|
(20600 antlr-read-boolean
|
|
"Case significant when matching characters? "))
|
|
("caseSensitiveLiterals" nil ; lexer only
|
|
(20600 antlr-read-boolean
|
|
"Case significant when testing literals table? "))
|
|
("classHeaderSuffix" nil
|
|
(20600 nil
|
|
"Additional string for grammar class definition"))
|
|
("filter" nil ; lexer only
|
|
(20600 antlr-read-boolean
|
|
"Skip rule (the name, true or false): "
|
|
antlr-grammar-tokens))
|
|
("namespace" antlr-c++-mode-extra
|
|
(20700 antlr-read-value
|
|
"Wrap generated C++ code for grammar in namespace: " t))
|
|
("namespaceStd" antlr-c++-mode-extra
|
|
(20701 antlr-read-value
|
|
"Replace ANTLR_USE_NAMESPACE(std) by: " t))
|
|
("namespaceAntlr" antlr-c++-mode-extra
|
|
(20701 antlr-read-value
|
|
"Replace ANTLR_USE_NAMESPACE(antlr) by: " t))
|
|
("genHashLines" antlr-c++-mode-extra
|
|
(20701 antlr-read-boolean
|
|
"Include #line in generated C++ code? "))
|
|
;;; ("autoTokenDef" nil ; parser only
|
|
;;; (80000 antlr-read-boolean ; default: true
|
|
;;; "Automatically define referenced token? "))
|
|
;;; ("keywordsMeltTo" nil ; parser only
|
|
;;; (80000 antlr-read-value
|
|
;;; "Change non-matching keywords to token type: "))
|
|
)
|
|
;; rule options ----------------------------------------------------------
|
|
(("testLiterals" nil ; lexer only
|
|
(20600 antlr-read-boolean
|
|
"Test this token against literals table? "))
|
|
("defaultErrorHandler" nil ; not for lexer
|
|
(20600 antlr-read-boolean
|
|
"Generate default exception handler for this rule? "))
|
|
("ignore" nil ; lexer only
|
|
(20600 antlr-read-value
|
|
"In this rule, ignore tokens of type: " nil
|
|
antlr-grammar-tokens))
|
|
("paraphrase" nil ; lexer only
|
|
(20600 antlr-read-value
|
|
"In messages, replace name of this token by: " t))
|
|
)
|
|
;; subrule options -------------------------------------------------------
|
|
(("warnWhenFollowAmbig" nil
|
|
(20600 antlr-read-boolean
|
|
"Display warnings for ambiguities with FOLLOW? "))
|
|
("generateAmbigWarnings" nil
|
|
(20600 antlr-read-boolean
|
|
"Display warnings for ambiguities? "))
|
|
("greedy" nil
|
|
(20700 antlr-read-boolean
|
|
"Make this optional/loop subrule greedy? "))
|
|
))
|
|
"Definitions for Antlr's options of all four different kinds.
|
|
|
|
The value looks like \(FILE GRAMMAR RULE SUBRULE) where each FILE,
|
|
GRAMMAR, RULE, and SUBRULE is a list of option definitions of the
|
|
corresponding kind, i.e., looks like \(OPTION-DEF...).
|
|
|
|
Each OPTION-DEF looks like \(OPTION-NAME EXTRA-FN VALUE-SPEC...) which
|
|
defines a file/grammar/rule/subrule option with name OPTION-NAME. The
|
|
OPTION-NAMEs are used for the creation of the \"Insert XXX Option\"
|
|
submenus, see `antlr-options-use-submenus', and to allow to insert the
|
|
option name with completion when using \\[antlr-insert-option].
|
|
|
|
If EXTRA-FN is a function, it is called at different phases of the
|
|
insertion with arguments \(PHASE OPTION-NAME). PHASE can have the
|
|
values `before-input' or `after-insertion', additional phases might be
|
|
defined in future versions of this mode. The phase `before-input'
|
|
occurs before the user is asked to insert a value. The phase
|
|
`after-insertion' occurs after the option value has been inserted.
|
|
EXTRA-FN might be called with additional arguments in future versions of
|
|
this mode.
|
|
|
|
Each specification VALUE-SPEC looks like \(VERSION READ-FN ARG...). The
|
|
last VALUE-SPEC in an OPTION-DEF whose VERSION is smaller or equal to
|
|
`antlr-tool-version' specifies how the user is asked for the value of
|
|
the option.
|
|
|
|
If READ-FN is nil, the only ARG is a string which is printed at the echo
|
|
area to guide the user what to insert at point. Otherwise, READ-FN is
|
|
called with arguments \(INIT-VALUE ARG...) to get the new value of the
|
|
option. INIT-VALUE is the old value of the option or nil.
|
|
|
|
The standard value contains the following functions as READ-FN:
|
|
`antlr-read-value' with ARGs = \(PROMPT AS-STRING TABLE) which reads a
|
|
general value, or `antlr-read-boolean' with ARGs = \(PROMPT TABLE) which
|
|
reads a boolean value or a member of TABLE. PROMPT is the prompt when
|
|
asking for a new value. If non-nil, TABLE is a table for completion or
|
|
a function evaluating to such a table. The return value is quoted iff
|
|
AS-STRING is non-nil and is either t or a symbol which is a member of
|
|
`antlr-options-style'.")
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Run tool, create Makefile dependencies
|
|
;;;===========================================================================
|
|
|
|
(defcustom antlr-tool-command "java antlr.Tool"
|
|
"*Command used in \\[antlr-run-tool] to run the Antlr tool.
|
|
This variable should include all options passed to Antlr except the
|
|
option \"-glib\" which is automatically suggested if necessary."
|
|
:group 'antlr
|
|
:type 'string)
|
|
|
|
(defcustom antlr-ask-about-save t
|
|
"*If not nil, \\[antlr-run-tool] asks which buffers to save.
|
|
Otherwise, it saves all modified buffers before running without asking."
|
|
:group 'antlr
|
|
:type 'boolean)
|
|
|
|
(defcustom antlr-makefile-specification
|
|
'("\n" ("GENS" "GENS%d" " \\\n\t") "$(ANTLR)")
|
|
"*Variable to specify the appearance of the generated makefile rules.
|
|
This variable influences the output of \\[antlr-show-makefile-rules].
|
|
It looks like \(RULE-SEP GEN-VAR-SPEC COMMAND).
|
|
|
|
RULE-SEP is the string to separate different makefile rules. COMMAND is
|
|
a string with the command which runs the Antlr tool, it should include
|
|
all options except the option \"-glib\" which is automatically added
|
|
if necessary.
|
|
|
|
If GEN-VAR-SPEC is nil, each target directly consists of a list of
|
|
files. If GEN-VAR-SPEC looks like \(GEN-VAR GEN-VAR-FORMAT GEN-SEP), a
|
|
Makefile variable is created for each rule target.
|
|
|
|
Then, GEN-VAR is a string with the name of the variable which contains
|
|
the file names of all makefile rules. GEN-VAR-FORMAT is a format string
|
|
producing the variable of each target with substitution COUNT/%d where
|
|
COUNT starts with 1. GEN-SEP is used to separate long variable values."
|
|
:group 'antlr
|
|
:type '(list (string :tag "Rule separator")
|
|
(choice
|
|
(const :tag "Direct targets" nil)
|
|
(list :tag "Variables for targets"
|
|
(string :tag "Variable for all targets")
|
|
(string :tag "Format for each target variable")
|
|
(string :tag "Variable separator")))
|
|
(string :tag "ANTLR command")))
|
|
|
|
(defvar antlr-file-formats-alist
|
|
'((java-mode ("%sTokenTypes.java") ("%s.java"))
|
|
(c++-mode ("%sTokenTypes.hpp") ("%s.cpp" "%s.hpp")))
|
|
"Language dependent formats which specify generated files.
|
|
Each element in this list looks looks like
|
|
\(MAJOR-MODE (VOCAB-FILE-FORMAT...) (CLASS-FILE-FORMAT...)).
|
|
|
|
The element whose MAJOR-MODE is equal to `antlr-language' is used to
|
|
specify the generated files which are language dependent. See variable
|
|
`antlr-special-file-formats' for language independent files.
|
|
|
|
VOCAB-FILE-FORMAT is a format string, it specifies with substitution
|
|
VOCAB/%s the generated file for each export vocabulary VOCAB.
|
|
CLASS-FILE-FORMAT is a format string, it specifies with substitution
|
|
CLASS/%s the generated file for each grammar class CLASS.")
|
|
|
|
(defvar antlr-special-file-formats '("%sTokenTypes.txt" "expanded%s.g")
|
|
"Language independent formats which specify generated files.
|
|
The value looks like \(VOCAB-FILE-FORMAT EXPANDED-GRAMMAR-FORMAT).
|
|
|
|
VOCAB-FILE-FORMAT is a format string, it specifies with substitution
|
|
VOCAB/%s the generated or input file for each export or import
|
|
vocabulary VOCAB, respectively. EXPANDED-GRAMMAR-FORMAT is a format
|
|
string, it specifies with substitution GRAMMAR/%s the constructed
|
|
grammar file if the file GRAMMAR.g contains a grammar class which
|
|
extends a class other than \"Lexer\", \"Parser\" or \"TreeParser\".
|
|
|
|
See variable `antlr-file-formats-alist' for language dependent
|
|
formats.")
|
|
|
|
(defvar antlr-unknown-file-formats '("?%s?.g" "?%s?")
|
|
"*Formats which specify the names of unknown files.
|
|
The value looks like \(SUPER-GRAMMAR-FILE-FORMAT SUPER-EVOCAB-FORMAT).
|
|
|
|
SUPER-GRAMMAR-FORMAT is a format string, it specifies with substitution
|
|
SUPER/%s the name of a grammar file for Antlr's option \"-glib\" if no
|
|
grammar file in the current directory defines the class SUPER or if it
|
|
is defined more than once. SUPER-EVOCAB-FORMAT is a format string, it
|
|
specifies with substitution SUPER/%s the name for the export vocabulary
|
|
of above mentioned class SUPER.")
|
|
|
|
(defvar antlr-help-unknown-file-text
|
|
"## The following rules contain filenames of the form
|
|
## \"?SUPERCLASS?.g\" (and \"?SUPERCLASS?TokenTypes.txt\")
|
|
## where SUPERCLASS is not found to be defined in any grammar file of
|
|
## the current directory or is defined more than once. Please replace
|
|
## these filenames by the grammar files (and their exportVocab).\n\n"
|
|
"String indicating the existence of unknown files in the Makefile.
|
|
See \\[antlr-show-makefile-rules] and `antlr-unknown-file-formats'.")
|
|
|
|
(defvar antlr-help-rules-intro
|
|
"The following Makefile rules define the dependencies for all (non-
|
|
expanded) grammars in directory \"%s\".\n
|
|
They are stored in the kill-ring, i.e., you can insert them with C-y
|
|
into your Makefile. You can also invoke M-x antlr-show-makefile-rules
|
|
from within a Makefile to insert them directly.\n\n\n"
|
|
"Introduction to use with \\[antlr-show-makefile-rules].
|
|
It is a format string and used with substitution DIRECTORY/%s where
|
|
DIRECTORY is the name of the current directory.")
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Menu
|
|
;;;===========================================================================
|
|
|
|
(defcustom antlr-imenu-name t ; (featurep 'xemacs) ; TODO: Emacs-21 bug?
|
|
"*Non-nil, if a \"Index\" menu should be added to the menubar.
|
|
If it is a string, it is used instead \"Index\". Requires package
|
|
imenu."
|
|
:group 'antlr
|
|
:type '(choice (const :tag "No menu" nil)
|
|
(const :tag "Index menu" t)
|
|
(string :tag "Other menu name")))
|
|
|
|
(defvar antlr-mode-map
|
|
(let ((map (make-sparse-keymap)))
|
|
(define-key map "\t" 'antlr-indent-command)
|
|
(define-key map "\e\C-a" 'antlr-beginning-of-rule)
|
|
(define-key map "\e\C-e" 'antlr-end-of-rule)
|
|
(define-key map "\C-c\C-a" 'antlr-beginning-of-body)
|
|
(define-key map "\C-c\C-e" 'antlr-end-of-body)
|
|
(define-key map "\C-c\C-f" 'c-forward-into-nomenclature)
|
|
(define-key map "\C-c\C-b" 'c-backward-into-nomenclature)
|
|
(define-key map "\C-c\C-c" 'comment-region)
|
|
(define-key map "\C-c\C-v" 'antlr-hide-actions)
|
|
(define-key map "\C-c\C-r" 'antlr-run-tool)
|
|
(define-key map "\C-c\C-o" 'antlr-insert-option)
|
|
;; I'm too lazy to define my own:
|
|
(define-key map "\ea" 'c-beginning-of-statement)
|
|
(define-key map "\ee" 'c-end-of-statement)
|
|
;; electric keys:
|
|
(define-key map ":" 'antlr-electric-character)
|
|
(define-key map ";" 'antlr-electric-character)
|
|
(define-key map "|" 'antlr-electric-character)
|
|
(define-key map "&" 'antlr-electric-character)
|
|
(define-key map "(" 'antlr-electric-character)
|
|
(define-key map ")" 'antlr-electric-character)
|
|
(define-key map "{" 'antlr-electric-character)
|
|
(define-key map "}" 'antlr-electric-character)
|
|
map)
|
|
"Keymap used in `antlr-mode' buffers.")
|
|
|
|
(easy-menu-define antlr-mode-menu antlr-mode-map
|
|
"Major mode menu."
|
|
`("Antlr"
|
|
,@(if (cond-emacs-xemacs
|
|
:EMACS (and antlr-options-use-submenus
|
|
(>= emacs-major-version 21))
|
|
:XEMACS antlr-options-use-submenus)
|
|
`(("Insert File Option"
|
|
:filter ,(lambda (x) (antlr-options-menu-filter 1 x)))
|
|
("Insert Grammar Option"
|
|
:filter ,(lambda (x) (antlr-options-menu-filter 2 x)))
|
|
("Insert Rule Option"
|
|
:filter ,(lambda (x) (antlr-options-menu-filter 3 x)))
|
|
("Insert Subrule Option"
|
|
:filter ,(lambda (x) (antlr-options-menu-filter 4 x)))
|
|
"---")
|
|
'(["Insert Option" antlr-insert-option
|
|
:active (not buffer-read-only)]))
|
|
("Forward/Backward"
|
|
["Backward Rule" antlr-beginning-of-rule t]
|
|
["Forward Rule" antlr-end-of-rule t]
|
|
["Start of Rule Body" antlr-beginning-of-body
|
|
:active (antlr-inside-rule-p)]
|
|
["End of Rule Body" antlr-end-of-body
|
|
:active (antlr-inside-rule-p)]
|
|
"---"
|
|
["Backward Statement" c-beginning-of-statement t]
|
|
["Forward Statement" c-end-of-statement t]
|
|
["Backward Into Nomencl." c-backward-into-nomenclature t]
|
|
["Forward Into Nomencl." c-forward-into-nomenclature t])
|
|
["Indent Region" indent-region
|
|
:active (and (not buffer-read-only) (c-region-is-active-p))]
|
|
["Comment Out Region" comment-region
|
|
:active (and (not buffer-read-only) (c-region-is-active-p))]
|
|
["Uncomment Region"
|
|
(comment-region (region-beginning) (region-end) '(4))
|
|
:active (and (not buffer-read-only) (c-region-is-active-p))]
|
|
"---"
|
|
["Hide Actions (incl. Args)" antlr-hide-actions t]
|
|
["Hide Actions (excl. Args)" (antlr-hide-actions 2) t]
|
|
["Unhide All Actions" (antlr-hide-actions 0) t]
|
|
"---"
|
|
["Run Tool on Grammar" antlr-run-tool t]
|
|
["Show Makefile Rules" antlr-show-makefile-rules t]
|
|
"---"
|
|
["Customize Antlr" (customize-group 'antlr) t]))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; font-lock
|
|
;;;===========================================================================
|
|
|
|
(defcustom antlr-font-lock-maximum-decoration 'inherit
|
|
"*The maximum decoration level for fontifying actions.
|
|
Value `none' means, do not fontify actions, just normal grammar code
|
|
according to `antlr-font-lock-additional-keywords'. Value `inherit'
|
|
means, use value of `font-lock-maximum-decoration'. Any other value is
|
|
interpreted as in `font-lock-maximum-decoration' with no level-0
|
|
fontification, see `antlr-font-lock-keywords-alist'.
|
|
|
|
While calculating the decoration level for actions, `major-mode' is
|
|
bound to `antlr-language'. For example, with value
|
|
\((java-mode \. 2) (c++-mode \. 0))
|
|
Java actions are fontified with level 2 and C++ actions are not
|
|
fontified at all."
|
|
:group 'antlr
|
|
:type '(choice (const :tag "None" none)
|
|
(const :tag "Inherit" inherit)
|
|
(const :tag "Default" nil)
|
|
(const :tag "Maximum" t)
|
|
(integer :tag "Level" 1)
|
|
(repeat :menu-tag "Mode specific" :tag "Mode specific"
|
|
:value ((t . t))
|
|
(cons :tag "Instance"
|
|
(radio :tag "Mode"
|
|
(const :tag "All" t)
|
|
(symbol :tag "Name"))
|
|
(radio :tag "Decoration"
|
|
(const :tag "Default" nil)
|
|
(const :tag "Maximum" t)
|
|
(integer :tag "Level" 1))))))
|
|
|
|
(defconst antlr-no-action-keywords nil
|
|
;; Using nil directly won't work (would use highest level, see
|
|
;; `font-lock-choose-keywords'), but a non-symbol, i.e., (list), at `car'
|
|
;; would break Emacs-21.0:
|
|
"Empty font-lock keywords for actions.
|
|
Do not change the value of this constant.")
|
|
|
|
(defvar antlr-font-lock-keywords-alist
|
|
'((java-mode
|
|
antlr-no-action-keywords
|
|
java-font-lock-keywords-1 java-font-lock-keywords-2
|
|
java-font-lock-keywords-3)
|
|
(c++-mode
|
|
antlr-no-action-keywords
|
|
c++-font-lock-keywords-1 c++-font-lock-keywords-2
|
|
c++-font-lock-keywords-3))
|
|
"List of font-lock keywords for actions in the grammar.
|
|
Each element in this list looks like
|
|
\(MAJOR-MODE KEYWORD...)
|
|
|
|
If `antlr-language' is equal to MAJOR-MODE, the KEYWORDs are the
|
|
font-lock keywords according to `font-lock-defaults' used for the code
|
|
in the grammar's actions and semantic predicates, see
|
|
`antlr-font-lock-maximum-decoration'.")
|
|
|
|
(defvar antlr-default-face 'antlr-default)
|
|
(defface antlr-default '((t nil))
|
|
"Face to prevent strings from language dependent highlighting.
|
|
Do not change."
|
|
:group 'antlr)
|
|
;; backward-compatibility alias
|
|
(put 'antlr-font-lock-default-face 'face-alias 'antlr-default)
|
|
|
|
(defvar antlr-keyword-face 'antlr-keyword)
|
|
(defface antlr-keyword
|
|
(cond-emacs-xemacs
|
|
'((((class color) (background light))
|
|
(:foreground "black" :EMACS :weight bold :XEMACS :bold t))))
|
|
"ANTLR keywords."
|
|
:group 'antlr)
|
|
;; backward-compatibility alias
|
|
(put 'antlr-font-lock-keyword-face 'face-alias 'antlr-keyword)
|
|
|
|
(defvar antlr-syntax-face 'antlr-keyword)
|
|
(defface antlr-syntax
|
|
(cond-emacs-xemacs
|
|
'((((class color) (background light))
|
|
(:foreground "black" :EMACS :weight bold :XEMACS :bold t))))
|
|
"ANTLR syntax symbols like :, |, (, ), ...."
|
|
:group 'antlr)
|
|
;; backward-compatibility alias
|
|
(put 'antlr-font-lock-syntax-face 'face-alias 'antlr-syntax)
|
|
|
|
(defvar antlr-ruledef-face 'antlr-ruledef)
|
|
(defface antlr-ruledef
|
|
(cond-emacs-xemacs
|
|
'((((class color) (background light))
|
|
(:foreground "blue" :EMACS :weight bold :XEMACS :bold t))))
|
|
"ANTLR rule references (definition)."
|
|
:group 'antlr)
|
|
;; backward-compatibility alias
|
|
(put 'antlr-font-lock-ruledef-face 'face-alias 'antlr-ruledef)
|
|
|
|
(defvar antlr-tokendef-face 'antlr-tokendef)
|
|
(defface antlr-tokendef
|
|
(cond-emacs-xemacs
|
|
'((((class color) (background light))
|
|
(:foreground "blue" :EMACS :weight bold :XEMACS :bold t))))
|
|
"ANTLR token references (definition)."
|
|
:group 'antlr)
|
|
;; backward-compatibility alias
|
|
(put 'antlr-font-lock-tokendef-face 'face-alias 'antlr-tokendef)
|
|
|
|
(defvar antlr-ruleref-face 'antlr-ruleref)
|
|
(defface antlr-ruleref
|
|
'((((class color) (background light)) (:foreground "blue4")))
|
|
"ANTLR rule references (usage)."
|
|
:group 'antlr)
|
|
;; backward-compatibility alias
|
|
(put 'antlr-font-lock-ruleref-face 'face-alias 'antlr-ruleref)
|
|
|
|
(defvar antlr-tokenref-face 'antlr-tokenref)
|
|
(defface antlr-tokenref
|
|
'((((class color) (background light)) (:foreground "orange4")))
|
|
"ANTLR token references (usage)."
|
|
:group 'antlr)
|
|
;; backward-compatibility alias
|
|
(put 'antlr-font-lock-tokenref-face 'face-alias 'antlr-tokenref)
|
|
|
|
(defvar antlr-literal-face 'antlr-literal)
|
|
(defface antlr-literal
|
|
(cond-emacs-xemacs
|
|
'((((class color) (background light))
|
|
(:foreground "brown4" :EMACS :weight bold :XEMACS :bold t))))
|
|
"ANTLR special literal tokens.
|
|
It is used to highlight strings matched by the first regexp group of
|
|
`antlr-font-lock-literal-regexp'."
|
|
:group 'antlr)
|
|
;; backward-compatibility alias
|
|
(put 'antlr-font-lock-literal-face 'face-alias 'antlr-literal)
|
|
|
|
(defcustom antlr-font-lock-literal-regexp "\"\\(\\sw\\(\\sw\\|-\\)*\\)\""
|
|
"Regexp matching literals with special syntax highlighting, or nil.
|
|
If nil, there is no special syntax highlighting for some literals.
|
|
Otherwise, it should be a regular expression which must contain a regexp
|
|
group. The string matched by the first group is highlighted with
|
|
`antlr-font-lock-literal-face'."
|
|
:group 'antlr
|
|
:type '(choice (const :tag "None" nil) regexp))
|
|
|
|
(defvar antlr-class-header-regexp
|
|
"\\(class\\)[ \t]+\\([A-Za-z\300-\326\330-\337]\\sw*\\)[ \t]+\\(extends\\)[ \t]+\\([A-Za-z\300-\326\330-\337]\\sw*\\)[ \t]*;"
|
|
"Regexp matching class headers.")
|
|
|
|
(defvar antlr-font-lock-additional-keywords
|
|
(cond-emacs-xemacs
|
|
`((antlr-invalidate-context-cache)
|
|
("\\$setType[ \t]*(\\([A-Za-z\300-\326\330-\337]\\sw*\\))"
|
|
(1 antlr-tokendef-face))
|
|
("\\$\\sw+" (0 keyword-face))
|
|
;; the tokens are already fontified as string/docstrings:
|
|
(,(lambda (limit)
|
|
(if antlr-font-lock-literal-regexp
|
|
(antlr-re-search-forward antlr-font-lock-literal-regexp limit)))
|
|
(1 antlr-literal-face t)
|
|
:XEMACS (0 nil)) ; XEmacs bug workaround
|
|
(,(lambda (limit)
|
|
(antlr-re-search-forward antlr-class-header-regexp limit))
|
|
(1 antlr-keyword-face)
|
|
(2 antlr-ruledef-face)
|
|
(3 antlr-keyword-face)
|
|
(4 (if (member (match-string 4) '("Lexer" "Parser" "TreeParser"))
|
|
antlr-keyword-face
|
|
type-face)))
|
|
(,(lambda (limit)
|
|
(antlr-re-search-forward
|
|
"\\<\\(header\\|options\\|tokens\\|exception\\|catch\\|returns\\)\\>"
|
|
limit))
|
|
(1 antlr-keyword-face))
|
|
(,(lambda (limit)
|
|
(antlr-re-search-forward
|
|
"^\\(private\\|public\\|protected\\)\\>[ \t]*\\(\\(\\sw+[ \t]*\\(:\\)?\\)\\)?"
|
|
limit))
|
|
(1 font-lock-type-face) ; not XEmacs' java level-3 fruit salad
|
|
(3 (if (antlr-upcase-p (char-after (match-beginning 3)))
|
|
antlr-tokendef-face
|
|
antlr-ruledef-face) nil t)
|
|
(4 antlr-syntax-face nil t))
|
|
(,(lambda (limit)
|
|
(antlr-re-search-forward "^\\(\\sw+\\)[ \t]*\\(:\\)?" limit))
|
|
(1 (if (antlr-upcase-p (char-after (match-beginning 0)))
|
|
antlr-tokendef-face
|
|
antlr-ruledef-face) nil t)
|
|
(2 antlr-syntax-face nil t))
|
|
(,(lambda (limit)
|
|
;; v:ruleref and v:"literal" is allowed...
|
|
(antlr-re-search-forward "\\(\\sw+\\)[ \t]*\\([=:]\\)?" limit))
|
|
(1 (if (match-beginning 2)
|
|
(if (eq (char-after (match-beginning 2)) ?=)
|
|
antlr-default-face
|
|
font-lock-variable-name-face)
|
|
(if (antlr-upcase-p (char-after (match-beginning 1)))
|
|
antlr-tokenref-face
|
|
antlr-ruleref-face)))
|
|
(2 antlr-default-face nil t))
|
|
(,(lambda (limit)
|
|
(antlr-re-search-forward "[|&:;(~]\\|)\\([*+?]\\|=>\\)?" limit))
|
|
(0 antlr-syntax-face))))
|
|
"Font-lock keywords for ANTLR's normal grammar code.
|
|
See `antlr-font-lock-keywords-alist' for the keywords of actions.")
|
|
|
|
(defvar antlr-font-lock-defaults
|
|
'(antlr-font-lock-keywords
|
|
nil nil ((?_ . "w") (?\( . ".") (?\) . ".")) beginning-of-defun)
|
|
"Font-lock defaults used for ANTLR syntax highlighting.
|
|
The SYNTAX-ALIST element is also used to initialize
|
|
`antlr-action-syntax-table'.")
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Internal variables
|
|
;;;===========================================================================
|
|
|
|
(defvar antlr-mode-hook nil
|
|
"Hook called by `antlr-mode'.")
|
|
|
|
(defvar antlr-mode-syntax-table nil
|
|
"Syntax table used in `antlr-mode' buffers.
|
|
If non-nil, it will be initialized in `antlr-mode'.")
|
|
|
|
;; used for "in Java/C++ code" = syntactic-depth>0
|
|
(defvar antlr-action-syntax-table nil
|
|
"Syntax table used for ANTLR action parsing.
|
|
Initialized by `antlr-mode-syntax-table', changed by SYNTAX-ALIST in
|
|
`antlr-font-lock-defaults'. This table should be selected if you use
|
|
`buffer-syntactic-context' and `buffer-syntactic-context-depth' in order
|
|
not to confuse their context_cache.")
|
|
|
|
(defvar antlr-mode-abbrev-table nil
|
|
"Abbreviation table used in `antlr-mode' buffers.")
|
|
(define-abbrev-table 'antlr-mode-abbrev-table ())
|
|
|
|
(defvar antlr-slow-cache-enabling-symbol 'loudly
|
|
;; Emacs' font-lock changes buffer's tick counter, therefore this value should
|
|
;; be a parameter of a font-lock function, but not any other variable of
|
|
;; functions which call `antlr-slow-syntactic-context'.
|
|
"If value is a bound symbol, cache will be used even with text changes.
|
|
This is no user option. Used for `antlr-slow-syntactic-context'.")
|
|
|
|
(defvar antlr-slow-cache-diff-threshold 5000
|
|
"Maximum distance between `point' and cache position for cache use.
|
|
Used for `antlr-slow-syntactic-context'.")
|
|
|
|
|
|
;;;;##########################################################################
|
|
;;;; The Code
|
|
;;;;##########################################################################
|
|
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Syntax functions -- Emacs vs XEmacs dependent, part 1
|
|
;;;===========================================================================
|
|
|
|
;; From help.el (XEmacs-21.1), without `copy-syntax-table'
|
|
(defmacro antlr-with-syntax-table (syntab &rest body)
|
|
"Evaluate BODY with the syntax table SYNTAB."
|
|
`(let ((stab (syntax-table)))
|
|
(unwind-protect
|
|
(progn (set-syntax-table ,syntab) ,@body)
|
|
(set-syntax-table stab))))
|
|
(put 'antlr-with-syntax-table 'lisp-indent-function 1)
|
|
(put 'antlr-with-syntax-table 'edebug-form-spec '(form body))
|
|
|
|
(defunx antlr-default-directory ()
|
|
:xemacs-and-try default-directory
|
|
"Return `default-directory'."
|
|
default-directory)
|
|
|
|
;; Check Emacs-21.1 simple.el, `shell-command'.
|
|
(defunx antlr-read-shell-command (prompt &optional initial-input history)
|
|
:xemacs-and-try read-shell-command
|
|
"Read a string from the minibuffer, using `shell-command-history'."
|
|
(read-from-minibuffer prompt initial-input nil nil
|
|
(or history 'shell-command-history)))
|
|
|
|
(defunx antlr-with-displaying-help-buffer (thunk &optional name)
|
|
:xemacs-and-try with-displaying-help-buffer
|
|
"Make a help buffer and call `thunk' there."
|
|
(with-output-to-temp-buffer "*Help*"
|
|
(save-excursion (funcall thunk))))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Context cache
|
|
;;;===========================================================================
|
|
|
|
(defvar antlr-slow-context-cache nil "Internal.")
|
|
|
|
;;;(defvar antlr-statistics-full-neg 0)
|
|
;;;(defvar antlr-statistics-full-diff 0)
|
|
;;;(defvar antlr-statistics-full-other 0)
|
|
;;;(defvar antlr-statistics-cache 0)
|
|
;;;(defvar antlr-statistics-inval 0)
|
|
|
|
(defunx antlr-invalidate-context-cache (&rest dummies)
|
|
;; checkdoc-params: (dummies)
|
|
"Invalidate context cache for syntactical context information."
|
|
:XEMACS ; XEmacs bug workaround
|
|
(save-excursion
|
|
(set-buffer (get-buffer-create " ANTLR XEmacs bug workaround"))
|
|
(buffer-syntactic-context-depth)
|
|
nil)
|
|
:EMACS
|
|
;;; (incf antlr-statistics-inval)
|
|
(setq antlr-slow-context-cache nil))
|
|
|
|
(defunx antlr-syntactic-context ()
|
|
"Return some syntactic context information.
|
|
Return `string' if point is within a string, `block-comment' or
|
|
`comment' is point is within a comment or the depth within all
|
|
parenthesis-syntax delimiters at point otherwise.
|
|
WARNING: this may alter `match-data'."
|
|
:XEMACS
|
|
(or (buffer-syntactic-context) (buffer-syntactic-context-depth))
|
|
:EMACS
|
|
(let ((orig (point)) diff state
|
|
;; Arg, Emacs' (buffer-modified-tick) changes with font-lock. Use
|
|
;; hack that `loudly' is bound during font-locking => cache use will
|
|
;; increase from 7% to 99.99% during font-locking.
|
|
(tick (or (boundp antlr-slow-cache-enabling-symbol)
|
|
(buffer-modified-tick))))
|
|
(if (and (cdr antlr-slow-context-cache)
|
|
(>= (setq diff (- orig (cadr antlr-slow-context-cache))) 0)
|
|
(< diff antlr-slow-cache-diff-threshold)
|
|
(eq (current-buffer) (caar antlr-slow-context-cache))
|
|
(eq tick (cdar antlr-slow-context-cache)))
|
|
;; (setq antlr-statistics-cache (1+ antlr-statistics-cache) ...)
|
|
(setq state (parse-partial-sexp (cadr antlr-slow-context-cache) orig
|
|
nil nil
|
|
(cddr antlr-slow-context-cache)))
|
|
(if (>= orig antlr-slow-cache-diff-threshold)
|
|
(beginning-of-defun)
|
|
(goto-char (point-min)))
|
|
;;; (cond ((and diff (< diff 0)) (incf antlr-statistics-full-neg))
|
|
;;; ((and diff (>= diff 3000)) (incf antlr-statistics-full-diff))
|
|
;;; (t (incf antlr-statistics-full-other)))
|
|
(setq state (parse-partial-sexp (point) orig)))
|
|
(goto-char orig)
|
|
(if antlr-slow-context-cache
|
|
(setcdr antlr-slow-context-cache (cons orig state))
|
|
(setq antlr-slow-context-cache
|
|
(cons (cons (current-buffer) tick)
|
|
(cons orig state))))
|
|
(cond ((nth 3 state) 'string)
|
|
((nth 4 state) 'comment) ; block-comment? -- we don't care
|
|
(t (car state)))))
|
|
|
|
;;; (incf (aref antlr-statistics 2))
|
|
;;; (unless (and (eq (current-buffer)
|
|
;;; (caar antlr-slow-context-cache))
|
|
;;; (eq (buffer-modified-tick)
|
|
;;; (cdar antlr-slow-context-cache)))
|
|
;;; (incf (aref antlr-statistics 1))
|
|
;;; (setq antlr-slow-context-cache nil))
|
|
;;; (let* ((orig (point))
|
|
;;; (base (cadr antlr-slow-context-cache))
|
|
;;; (curr (cddr antlr-slow-context-cache))
|
|
;;; (state (cond ((eq orig (car curr)) (cdr curr))
|
|
;;; ((eq orig (car base)) (cdr base))))
|
|
;;; diff diff2)
|
|
;;; (unless state
|
|
;;; (incf (aref antlr-statistics 3))
|
|
;;; (when curr
|
|
;;; (if (< (setq diff (abs (- orig (car curr))))
|
|
;;; (setq diff2 (abs (- orig (car base)))))
|
|
;;; (setq state curr)
|
|
;;; (setq state base
|
|
;;; diff diff2))
|
|
;;; (if (or (>= (1+ diff) (point)) (>= diff 3000))
|
|
;;; (setq state nil))) ; start from bod/bob
|
|
;;; (if state
|
|
;;; (setq state
|
|
;;; (parse-partial-sexp (car state) orig nil nil (cdr state)))
|
|
;;; (if (>= orig 3000) (beginning-of-defun) (goto-char (point-min)))
|
|
;;; (incf (aref antlr-statistics 4))
|
|
;;; (setq cw (list orig (point) base curr))
|
|
;;; (setq state (parse-partial-sexp (point) orig)))
|
|
;;; (goto-char orig)
|
|
;;; (if antlr-slow-context-cache
|
|
;;; (setcdr (cdr antlr-slow-context-cache) (cons orig state))
|
|
;;; (setq antlr-slow-context-cache
|
|
;;; (cons (cons (current-buffer) (buffer-modified-tick))
|
|
;;; (cons (cons orig state) (cons orig state))))))
|
|
;;; (cond ((nth 3 state) 'string)
|
|
;;; ((nth 4 state) 'comment) ; block-comment? -- we don't care
|
|
;;; (t (car state)))))
|
|
|
|
;;; (beginning-of-defun)
|
|
;;; (let ((state (parse-partial-sexp (point) orig)))
|
|
;;; (goto-char orig)
|
|
;;; (cond ((nth 3 state) 'string)
|
|
;;; ((nth 4 state) 'comment) ; block-comment? -- we don't care
|
|
;;; (t (car state))))))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Miscellaneous functions
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-upcase-p (char)
|
|
"Non-nil, if CHAR is an uppercase character (if CHAR was a char)."
|
|
;; in XEmacs, upcase only works for ASCII
|
|
(or (and (<= ?A char) (<= char ?Z))
|
|
(and (<= ?\300 char) (<= char ?\337)))) ; ?\327 is no letter
|
|
|
|
(defun antlr-re-search-forward (regexp bound)
|
|
"Search forward from point for regular expression REGEXP.
|
|
Set point to the end of the occurrence found, and return point. Return
|
|
nil if no occurrence was found. Do not search within comments, strings
|
|
and actions/semantic predicates. BOUND bounds the search; it is a
|
|
buffer position. See also the functions `match-beginning', `match-end'
|
|
and `replace-match'."
|
|
;; WARNING: Should only be used with `antlr-action-syntax-table'!
|
|
(let ((continue t))
|
|
(while (and (re-search-forward regexp bound 'limit)
|
|
(save-match-data
|
|
(if (eq (antlr-syntactic-context) 0)
|
|
(setq continue nil)
|
|
t))))
|
|
(if continue nil (point))))
|
|
|
|
(defun antlr-search-forward (string)
|
|
"Search forward from point for STRING.
|
|
Set point to the end of the occurrence found, and return point. Return
|
|
nil if no occurrence was found. Do not search within comments, strings
|
|
and actions/semantic predicates."
|
|
;; WARNING: Should only be used with `antlr-action-syntax-table'!
|
|
(let ((continue t))
|
|
(while (and (search-forward string nil 'limit)
|
|
(if (eq (antlr-syntactic-context) 0) (setq continue nil) t)))
|
|
(if continue nil (point))))
|
|
|
|
(defun antlr-search-backward (string)
|
|
"Search backward from point for STRING.
|
|
Set point to the beginning of the occurrence found, and return point.
|
|
Return nil if no occurrence was found. Do not search within comments,
|
|
strings and actions/semantic predicates."
|
|
;; WARNING: Should only be used with `antlr-action-syntax-table'!
|
|
(let ((continue t))
|
|
(while (and (search-backward string nil 'limit)
|
|
(if (eq (antlr-syntactic-context) 0) (setq continue nil) t)))
|
|
(if continue nil (point))))
|
|
|
|
(defsubst antlr-skip-sexps (count)
|
|
"Skip the next COUNT balanced expressions and the comments after it.
|
|
Return position before the comments after the last expression."
|
|
(goto-char (or (ignore-errors-x (scan-sexps (point) count)) (point-max)))
|
|
(prog1 (point)
|
|
(antlr-c-forward-sws)))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; font-lock
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-font-lock-keywords ()
|
|
"Return font-lock keywords for current buffer.
|
|
See `antlr-font-lock-additional-keywords', `antlr-language' and
|
|
`antlr-font-lock-maximum-decoration'."
|
|
(if (eq antlr-font-lock-maximum-decoration 'none)
|
|
antlr-font-lock-additional-keywords
|
|
(append antlr-font-lock-additional-keywords
|
|
(eval (let ((major-mode antlr-language)) ; dynamic
|
|
(font-lock-choose-keywords
|
|
(cdr (assq antlr-language
|
|
antlr-font-lock-keywords-alist))
|
|
(if (eq antlr-font-lock-maximum-decoration 'inherit)
|
|
font-lock-maximum-decoration
|
|
antlr-font-lock-maximum-decoration)))))))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; imenu support
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-grammar-tokens ()
|
|
"Return alist for tokens defined in current buffer."
|
|
(save-excursion (antlr-imenu-create-index-function t)))
|
|
|
|
(defun antlr-imenu-create-index-function (&optional tokenrefs-only)
|
|
"Return imenu index-alist for ANTLR grammar files.
|
|
IF TOKENREFS-ONLY is non-nil, just return alist with tokenref names."
|
|
(let ((items nil)
|
|
(classes nil)
|
|
(continue t))
|
|
;; Using `imenu-progress-message' would require imenu for compilation, but
|
|
;; nobody is missing these messages. The generic imenu function searches
|
|
;; backward, which is slower and more likely not to work during editing.
|
|
(antlr-with-syntax-table antlr-action-syntax-table
|
|
(antlr-invalidate-context-cache)
|
|
(goto-char (point-min))
|
|
(antlr-skip-file-prelude t)
|
|
(while continue
|
|
(if (looking-at "{") (antlr-skip-sexps 1))
|
|
(if (looking-at antlr-class-header-regexp)
|
|
(or tokenrefs-only
|
|
(push (cons (match-string 2)
|
|
(if imenu-use-markers
|
|
(copy-marker (match-beginning 2))
|
|
(match-beginning 2)))
|
|
classes))
|
|
(if (looking-at "p\\(ublic\\|rotected\\|rivate\\)")
|
|
(antlr-skip-sexps 1))
|
|
(when (looking-at "\\sw+")
|
|
(if tokenrefs-only
|
|
(if (antlr-upcase-p (char-after (point)))
|
|
(push (list (match-string 0)) items))
|
|
(push (cons (match-string 0)
|
|
(if imenu-use-markers
|
|
(copy-marker (match-beginning 0))
|
|
(match-beginning 0)))
|
|
items))))
|
|
(if (setq continue (antlr-search-forward ";"))
|
|
(antlr-skip-exception-part t))))
|
|
(if classes
|
|
(cons (cons "Classes" (nreverse classes)) (nreverse items))
|
|
(nreverse items))))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Parse grammar files (internal functions)
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-skip-exception-part (skip-comment)
|
|
"Skip exception part of current rule, i.e., everything after `;'.
|
|
This also includes the options and tokens part of a grammar class
|
|
header. If SKIP-COMMENT is non-nil, also skip the comment after that
|
|
part."
|
|
(let ((pos (point))
|
|
(class nil))
|
|
(antlr-c-forward-sws)
|
|
(while (looking-at "options\\>\\|tokens\\>")
|
|
(setq class t)
|
|
(setq pos (antlr-skip-sexps 2)))
|
|
(if class
|
|
;; Problem: an action only belongs to a class def, not a normal rule.
|
|
;; But checking the current rule type is too expensive => only expect
|
|
;; an action if we have found an option or tokens part.
|
|
(if (looking-at "{") (setq pos (antlr-skip-sexps 1)))
|
|
(while (looking-at "exception\\>")
|
|
(setq pos (antlr-skip-sexps 1))
|
|
(when (looking-at "\\[")
|
|
(setq pos (antlr-skip-sexps 1)))
|
|
(while (looking-at "catch\\>")
|
|
(setq pos (antlr-skip-sexps 3)))))
|
|
(or skip-comment (goto-char pos))))
|
|
|
|
(defun antlr-skip-file-prelude (skip-comment)
|
|
"Skip the file prelude: the header and file options.
|
|
If SKIP-COMMENT is non-nil, also skip the comment after that part.
|
|
Return the start position of the file prelude.
|
|
|
|
Hack: if SKIP-COMMENT is `header-only' only skip header and return
|
|
position before the comment after the header."
|
|
(let* ((pos (point))
|
|
(pos0 pos))
|
|
(antlr-c-forward-sws)
|
|
(if skip-comment (setq pos0 (point)))
|
|
(while (looking-at "header\\>[ \t]*\\(\"\\)?")
|
|
(setq pos (antlr-skip-sexps (if (match-beginning 1) 3 2))))
|
|
(if (eq skip-comment 'header-only) ; a hack...
|
|
pos
|
|
(when (looking-at "options\\>")
|
|
(setq pos (antlr-skip-sexps 2)))
|
|
(or skip-comment (goto-char pos))
|
|
pos0)))
|
|
|
|
(defun antlr-next-rule (arg skip-comment)
|
|
"Move forward to next end of rule. Do it ARG many times.
|
|
A grammar class header and the file prelude are also considered as a
|
|
rule. Negative argument ARG means move back to ARGth preceding end of
|
|
rule. The behavior is not defined when ARG is zero. If SKIP-COMMENT
|
|
is non-nil, move to beginning of the rule."
|
|
;; WARNING: Should only be used with `antlr-action-syntax-table'!
|
|
;; PRE: ARG<>0
|
|
(let ((pos (point))
|
|
(beg (point)))
|
|
;; first look whether point is in exception part
|
|
(if (antlr-search-backward ";")
|
|
(progn
|
|
(setq beg (point))
|
|
(forward-char)
|
|
(antlr-skip-exception-part skip-comment))
|
|
(antlr-skip-file-prelude skip-comment))
|
|
(if (< arg 0)
|
|
(unless (and (< (point) pos) (zerop (incf arg)))
|
|
;; if we have moved backward, we already moved one defun backward
|
|
(goto-char beg) ; rewind (to ";" / point)
|
|
(while (and arg (<= (incf arg) 0))
|
|
(if (antlr-search-backward ";")
|
|
(setq beg (point))
|
|
(when (>= arg -1)
|
|
;; try file prelude:
|
|
(setq pos (antlr-skip-file-prelude skip-comment))
|
|
(if (zerop arg)
|
|
(if (>= (point) beg)
|
|
(goto-char (if (>= pos beg) (point-min) pos)))
|
|
(goto-char (if (or (>= (point) beg) (= (point) pos))
|
|
(point-min) pos))))
|
|
(setq arg nil)))
|
|
(when arg ; always found a ";"
|
|
(forward-char)
|
|
(antlr-skip-exception-part skip-comment)))
|
|
(if (<= (point) pos) ; moved backward?
|
|
(goto-char pos) ; rewind
|
|
(decf arg)) ; already moved one defun forward
|
|
(unless (zerop arg)
|
|
(while (>= (decf arg) 0)
|
|
(antlr-search-forward ";"))
|
|
(antlr-skip-exception-part skip-comment)))))
|
|
|
|
(defun antlr-outside-rule-p ()
|
|
"Non-nil if point is outside a grammar rule.
|
|
Move to the beginning of the current rule if point is inside a rule."
|
|
;; WARNING: Should only be used with `antlr-action-syntax-table'!
|
|
(let ((pos (point)))
|
|
(antlr-next-rule -1 nil)
|
|
(let ((between (or (bobp) (< (point) pos))))
|
|
(antlr-c-forward-sws)
|
|
(and between (> (point) pos) (goto-char pos)))))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Parse grammar files (commands)
|
|
;;;===========================================================================
|
|
;; No (interactive "_") in Emacs... use `zmacs-region-stays'.
|
|
|
|
(defun antlr-inside-rule-p ()
|
|
"Non-nil if point is inside a grammar rule.
|
|
A grammar class header and the file prelude are also considered as a
|
|
rule."
|
|
(save-excursion
|
|
(antlr-with-syntax-table antlr-action-syntax-table
|
|
(not (antlr-outside-rule-p)))))
|
|
|
|
(defunx antlr-end-of-rule (&optional arg)
|
|
"Move forward to next end of rule. Do it ARG [default: 1] many times.
|
|
A grammar class header and the file prelude are also considered as a
|
|
rule. Negative argument ARG means move back to ARGth preceding end of
|
|
rule. If ARG is zero, run `antlr-end-of-body'."
|
|
(interactive "_p")
|
|
(if (zerop arg)
|
|
(antlr-end-of-body)
|
|
(antlr-with-syntax-table antlr-action-syntax-table
|
|
(antlr-next-rule arg nil))))
|
|
|
|
(defunx antlr-beginning-of-rule (&optional arg)
|
|
"Move backward to preceding beginning of rule. Do it ARG many times.
|
|
A grammar class header and the file prelude are also considered as a
|
|
rule. Negative argument ARG means move forward to ARGth next beginning
|
|
of rule. If ARG is zero, run `antlr-beginning-of-body'."
|
|
(interactive "_p")
|
|
(if (zerop arg)
|
|
(antlr-beginning-of-body)
|
|
(antlr-with-syntax-table antlr-action-syntax-table
|
|
(antlr-next-rule (- arg) t))))
|
|
|
|
(defunx antlr-end-of-body (&optional msg)
|
|
"Move to position after the `;' of the current rule.
|
|
A grammar class header is also considered as a rule. With optional
|
|
prefix arg MSG, move to `:'."
|
|
(interactive "_")
|
|
(antlr-with-syntax-table antlr-action-syntax-table
|
|
(let ((orig (point)))
|
|
(if (antlr-outside-rule-p)
|
|
(error "Outside an ANTLR rule"))
|
|
(let ((bor (point)))
|
|
(when (< (antlr-skip-file-prelude t) (point))
|
|
;; Yes, we are in the file prelude
|
|
(goto-char orig)
|
|
(error (or msg "The file prelude is without `;'")))
|
|
(antlr-search-forward ";")
|
|
(when msg
|
|
(when (< (point)
|
|
(progn (goto-char bor)
|
|
(or (antlr-search-forward ":") (point-max))))
|
|
(goto-char orig)
|
|
(error msg))
|
|
(antlr-c-forward-sws))))))
|
|
|
|
(defunx antlr-beginning-of-body ()
|
|
"Move to the first element after the `:' of the current rule."
|
|
(interactive "_")
|
|
(antlr-end-of-body "Class headers and the file prelude are without `:'"))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Literal normalization, Hide Actions
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-downcase-literals (&optional transform)
|
|
"Convert all literals in buffer to lower case.
|
|
If non-nil, TRANSFORM is used on literals instead of `downcase-region'."
|
|
(interactive)
|
|
(or transform (setq transform 'downcase-region))
|
|
(let ((literals 0))
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(antlr-with-syntax-table antlr-action-syntax-table
|
|
(antlr-invalidate-context-cache)
|
|
(while (antlr-re-search-forward "\"\\(\\sw\\(\\sw\\|-\\)*\\)\"" nil)
|
|
(funcall transform (match-beginning 0) (match-end 0))
|
|
(incf literals))))
|
|
(message "Transformed %d literals" literals)))
|
|
|
|
(defun antlr-upcase-literals ()
|
|
"Convert all literals in buffer to upper case."
|
|
(interactive)
|
|
(antlr-downcase-literals 'upcase-region))
|
|
|
|
(defun antlr-hide-actions (arg &optional silent)
|
|
"Hide or unhide all actions in buffer.
|
|
Hide all actions including arguments in brackets if ARG is 1 or if
|
|
called interactively without prefix argument. Hide all actions
|
|
excluding arguments in brackets if ARG is 2 or higher. Unhide all
|
|
actions if ARG is 0 or negative. See `antlr-action-visibility'.
|
|
|
|
Display a message unless optional argument SILENT is non-nil."
|
|
(interactive "p")
|
|
(save-buffer-state-x
|
|
(if (> arg 0)
|
|
(let ((regexp (if (= arg 1) "[]}]" "}"))
|
|
(diff (and antlr-action-visibility
|
|
(+ (max antlr-action-visibility 0) 2))))
|
|
(antlr-hide-actions 0 t)
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(antlr-with-syntax-table antlr-action-syntax-table
|
|
(antlr-invalidate-context-cache)
|
|
(while (antlr-re-search-forward regexp nil)
|
|
(let ((beg (ignore-errors-x (scan-sexps (point) -1))))
|
|
(when beg
|
|
(if diff ; braces are visible
|
|
(if (> (point) (+ beg diff))
|
|
(add-text-properties (1+ beg) (1- (point))
|
|
'(invisible t intangible t)))
|
|
;; if actions is on line(s) of its own, hide WS
|
|
(and (looking-at "[ \t]*$")
|
|
(save-excursion
|
|
(goto-char beg)
|
|
(skip-chars-backward " \t")
|
|
(and (bolp) (setq beg (point))))
|
|
(beginning-of-line 2)) ; beginning of next line
|
|
(add-text-properties beg (point)
|
|
'(invisible t intangible t))))))))
|
|
(or silent
|
|
(message "Hide all actions (%s arguments)...done"
|
|
(if (= arg 1) "including" "excluding"))))
|
|
(remove-text-properties (point-min) (point-max)
|
|
'(invisible nil intangible nil))
|
|
(or silent
|
|
(message "Unhide all actions (including arguments)...done")))))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Insert option: command
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-insert-option (level option &optional location)
|
|
"Insert file/grammar/rule/subrule option near point.
|
|
LEVEL determines option kind to insert: 1=file, 2=grammar, 3=rule,
|
|
4=subrule. OPTION is a string with the name of the option to insert.
|
|
LOCATION can be specified for not calling `antlr-option-kind' twice.
|
|
|
|
Inserting an option with this command works as follows:
|
|
|
|
1. When called interactively, LEVEL is determined by the prefix
|
|
argument or automatically deduced without prefix argument.
|
|
2. Signal an error if no option of that level could be inserted, e.g.,
|
|
if the buffer is read-only, the option area is outside the visible
|
|
part of the buffer or a subrule/rule option should be inserted with
|
|
point outside a subrule/rule.
|
|
3. When called interactively, OPTION is read from the minibuffer with
|
|
completion over the known options of the given LEVEL.
|
|
4. Ask user for confirmation if the given OPTION does not seem to be a
|
|
valid option to insert into the current file.
|
|
5. Find a correct position to insert the option.
|
|
6. Depending on the option, insert it the following way \(inserting an
|
|
option also means inserting the option section if necessary\):
|
|
- Insert the option and let user insert the value at point.
|
|
- Read a value (with completion) from the minibuffer, using a
|
|
previous value as initial contents, and insert option with value.
|
|
7. Final action depending on the option. For example, set the language
|
|
according to a newly inserted language option.
|
|
|
|
The name of all options with a specification for their values are stored
|
|
in `antlr-options-alists'. The used specification also depends on the
|
|
value of `antlr-tool-version', i.e., step 4 will warn you if you use an
|
|
option that has been introduced in newer version of ANTLR, and step 5
|
|
will offer completion using version-correct values.
|
|
|
|
If the option already exists inside the visible part of the buffer, this
|
|
command can be used to change the value of that option. Otherwise, find
|
|
a correct position where the option can be inserted near point.
|
|
|
|
The search for a correct position is as follows:
|
|
|
|
* If search is within an area where options can be inserted, use the
|
|
position of point. Inside the options section and if point is in
|
|
the middle of a option definition, skip the rest of it.
|
|
* If an options section already exists, insert the options at the end.
|
|
If only the beginning of the area is visible, insert at the
|
|
beginning.
|
|
* Otherwise, find the position where an options section can be
|
|
inserted and insert a new section before any comments. If the
|
|
position before the comments is not visible, insert the new section
|
|
after the comments.
|
|
|
|
This function also inserts \"options {...}\" and the \":\" if necessary,
|
|
see `antlr-options-auto-colon'. See also `antlr-options-assign-string'.
|
|
|
|
This command might also set the mark like \\[set-mark-command] does, see
|
|
`antlr-options-push-mark'."
|
|
(interactive (antlr-insert-option-interactive current-prefix-arg))
|
|
(barf-if-buffer-read-only)
|
|
(or location (setq location (cdr (antlr-option-kind level))))
|
|
(cond ((null level)
|
|
(error "Cannot deduce what kind of option to insert"))
|
|
((atom location)
|
|
(error "Cannot insert any %s options around here"
|
|
(elt antlr-options-headings (1- level)))))
|
|
(let ((area (car location))
|
|
(place (cdr location)))
|
|
(cond ((null place) ; invisible
|
|
(error (if area
|
|
"Invisible %s options, use %s to make them visible"
|
|
"Invisible area for %s options, use %s to make it visible")
|
|
(elt antlr-options-headings (1- level))
|
|
(substitute-command-keys "\\[widen]")))
|
|
((null area) ; without option part
|
|
(antlr-insert-option-do level option nil
|
|
(null (cdr place))
|
|
(car place)))
|
|
((save-excursion ; with option part, option visible
|
|
(goto-char (max (point-min) (car area)))
|
|
(re-search-forward (concat "\\(^\\|;\\)[ \t]*\\(\\<"
|
|
(regexp-quote option)
|
|
"\\>\\)[ \t\n]*\\(\\(=[ \t]?\\)[ \t]*\\(\\(\\sw\\|\\s_\\)+\\|\"\\([^\n\"\\]\\|[\\][^\n]\\)*\"\\)?\\)?")
|
|
;; 2=name, 3=4+5, 4="=", 5=value
|
|
(min (point-max) (cdr area))
|
|
t))
|
|
(antlr-insert-option-do level option
|
|
(cons (or (match-beginning 5)
|
|
(match-beginning 3))
|
|
(match-end 5))
|
|
(and (null (cdr place)) area)
|
|
(or (match-beginning 5)
|
|
(match-end 4)
|
|
(match-end 2))))
|
|
(t ; with option part, option not yet
|
|
(antlr-insert-option-do level option t
|
|
(and (null (cdr place)) area)
|
|
(car place))))))
|
|
|
|
(defun antlr-insert-option-interactive (arg)
|
|
"Interactive specification for `antlr-insert-option'.
|
|
Return \(LEVEL OPTION LOCATION)."
|
|
(barf-if-buffer-read-only)
|
|
(if arg (setq arg (prefix-numeric-value arg)))
|
|
(unless (memq arg '(nil 1 2 3 4))
|
|
(error "Valid prefix args: no=auto, 1=file, 2=grammar, 3=rule, 4=subrule"))
|
|
(let* ((kind (antlr-option-kind arg))
|
|
(level (car kind)))
|
|
(if (atom (cdr kind))
|
|
(list level nil (cdr kind))
|
|
(let* ((table (elt antlr-options-alists (1- level)))
|
|
(completion-ignore-case t) ;dynamic
|
|
(input (completing-read (format "Insert %s option: "
|
|
(elt antlr-options-headings
|
|
(1- level)))
|
|
table)))
|
|
(list level input (cdr kind))))))
|
|
|
|
(defun antlr-options-menu-filter (level menu-items)
|
|
"Return items for options submenu of level LEVEL."
|
|
;; checkdoc-params: (menu-items)
|
|
(let ((active (if buffer-read-only
|
|
nil
|
|
(consp (cdr-safe (cdr (antlr-option-kind level)))))))
|
|
(mapcar (lambda (option)
|
|
(vector option
|
|
(list 'antlr-insert-option level option)
|
|
:active active))
|
|
(sort (mapcar 'car (elt antlr-options-alists (1- level)))
|
|
'string-lessp))))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Insert option: determine section-kind
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-option-kind (requested)
|
|
"Return level and location for option to insert near point.
|
|
Call function `antlr-option-level' with argument REQUESTED. If the
|
|
result is nil, return \(REQUESTED \. error). If the result has the
|
|
non-nil value LEVEL, return \(LEVEL \. LOCATION) where LOCATION looks
|
|
like \(AREA \. PLACE), see `antlr-option-location'."
|
|
(save-excursion
|
|
(save-restriction
|
|
(let ((min0 (point-min)) ; before `widen'!
|
|
(max0 (point-max))
|
|
(orig (point))
|
|
(level (antlr-option-level requested)) ; calls `widen'!
|
|
pos)
|
|
(cond ((null level)
|
|
(setq level requested))
|
|
((eq level 1) ; file options
|
|
(goto-char (point-min))
|
|
(setq pos (antlr-skip-file-prelude 'header-only)))
|
|
((not (eq level 3)) ; grammar or subrule options
|
|
(setq pos (point))
|
|
(antlr-c-forward-sws))
|
|
((looking-at "^\\(private[ \t\n]\\|public[ \t\n]\\|protected[ \t\n]\\)?[ \t\n]*\\(\\(\\sw\\|\\s_\\)+\\)[ \t\n]*\\(!\\)?[ \t\n]*\\(\\[\\)?")
|
|
;; rule options, with complete rule header
|
|
(goto-char (or (match-end 4) (match-end 3)))
|
|
(setq pos (antlr-skip-sexps (if (match-end 5) 1 0)))
|
|
(when (looking-at "returns[ \t\n]*\\[")
|
|
(goto-char (1- (match-end 0)))
|
|
(setq pos (antlr-skip-sexps 1)))))
|
|
(cons level
|
|
(cond ((null pos) 'error)
|
|
((looking-at "options[ \t\n]*{")
|
|
(goto-char (match-end 0))
|
|
(setq pos (ignore-errors-x (scan-lists (point) 1 1)))
|
|
(antlr-option-location orig min0 max0
|
|
(point)
|
|
(if pos (1- pos) (point-max))
|
|
t))
|
|
(t
|
|
(antlr-option-location orig min0 max0
|
|
pos (point)
|
|
nil))))))))
|
|
|
|
(defun antlr-option-level (requested)
|
|
"Return level for option to insert near point.
|
|
Remove any restrictions from current buffer and return level for the
|
|
option to insert near point, i.e., 1, 2, 3, 4, or nil if no such option
|
|
can be inserted. If REQUESTED is non-nil, it is the only possible value
|
|
to return except nil. If REQUESTED is nil, return level for the nearest
|
|
option kind, i.e., the highest number possible.
|
|
|
|
If the result is 2, point is at the beginning of the class after the
|
|
class definition. If the result is 3 or 4, point is at the beginning of
|
|
the rule/subrule after the init action. Otherwise, the point position
|
|
is undefined."
|
|
(widen)
|
|
(if (eq requested 1)
|
|
1
|
|
(antlr-with-syntax-table antlr-action-syntax-table
|
|
(antlr-invalidate-context-cache)
|
|
(let* ((orig (point))
|
|
(outsidep (antlr-outside-rule-p))
|
|
bor depth)
|
|
(if (eq (char-after) ?\{) (antlr-skip-sexps 1))
|
|
(setq bor (point)) ; beginning of rule (after init action)
|
|
(cond ((eq requested 2) ; grammar options required?
|
|
(let (boc) ; beginning of class
|
|
(goto-char (point-min))
|
|
(while (and (<= (point) bor)
|
|
(antlr-re-search-forward antlr-class-header-regexp
|
|
nil))
|
|
(if (<= (match-beginning 0) bor)
|
|
(setq boc (match-end 0))))
|
|
(when boc
|
|
(goto-char boc)
|
|
2)))
|
|
((save-excursion ; in region of file options?
|
|
(goto-char (point-min))
|
|
(antlr-skip-file-prelude t) ; ws/comment after: OK
|
|
(< orig (point)))
|
|
(and (null requested) 1))
|
|
(outsidep ; outside rule not OK
|
|
nil)
|
|
((looking-at antlr-class-header-regexp) ; rule = class def?
|
|
(goto-char (match-end 0))
|
|
(and (null requested) 2))
|
|
((eq requested 3) ; rule options required?
|
|
(goto-char bor)
|
|
3)
|
|
((setq depth (antlr-syntactic-grammar-depth orig bor))
|
|
(if (> depth 0) ; move out of actions
|
|
(goto-char (scan-lists (point) -1 depth)))
|
|
(set-syntax-table antlr-mode-syntax-table)
|
|
(antlr-invalidate-context-cache)
|
|
(if (eq (antlr-syntactic-context) 0) ; not in subrule?
|
|
(unless (eq requested 4)
|
|
(goto-char bor)
|
|
3)
|
|
(goto-char (1+ (scan-lists (point) -1 1)))
|
|
4)))))))
|
|
|
|
(defun antlr-option-location (orig min-vis max-vis min-area max-area withp)
|
|
"Return location for the options area.
|
|
ORIG is the original position of `point', MIN-VIS is `point-min' and
|
|
MAX-VIS is `point-max'. If WITHP is non-nil, there exists an option
|
|
specification and it starts after the brace at MIN-AREA and stops at
|
|
MAX-AREA. If WITHP is nil, there is no area and the region where it
|
|
could be inserted starts at MIN-AREA and stops at MAX-AREA.
|
|
|
|
The result has the form (AREA . PLACE). AREA is (MIN-AREA . MAX-AREA)
|
|
if WITHP is non-nil, and nil otherwise. PLACE is nil if the area is
|
|
invisible, (ORIG) if ORIG is inside the area, (MIN-AREA . beginning) for
|
|
a visible start position and (MAX-AREA . end) for a visible end position
|
|
where the beginning is preferred if WITHP is nil and the end if WITHP is
|
|
non-nil."
|
|
(cons (and withp (cons min-area max-area))
|
|
(cond ((and (<= min-area orig) (<= orig max-area)
|
|
(save-excursion
|
|
(goto-char orig)
|
|
(not (memq (antlr-syntactic-context)
|
|
'(comment block-comment)))))
|
|
;; point in options area and not in comment
|
|
(list orig))
|
|
((and (null withp) (<= min-vis min-area) (<= min-area max-vis))
|
|
;; use start of options area (only if not `withp')
|
|
(cons min-area 'beginning))
|
|
((and (<= min-vis max-area) (<= max-area max-vis))
|
|
;; use end of options area
|
|
(cons max-area 'end))
|
|
((and withp (<= min-vis min-area) (<= min-area max-vis))
|
|
;; use start of options area (only if `withp')
|
|
(cons min-area 'beginning)))))
|
|
|
|
(defun antlr-syntactic-grammar-depth (pos beg)
|
|
"Return syntactic context depth at POS.
|
|
Move to POS and from there on to the beginning of the string or comment
|
|
if POS is inside such a construct. Then, return the syntactic context
|
|
depth at point if the point position is smaller than BEG.
|
|
WARNING: this may alter `match-data'."
|
|
(goto-char pos)
|
|
(let ((context (or (antlr-syntactic-context) 0)))
|
|
(while (and context (not (integerp context)))
|
|
(cond ((eq context 'string)
|
|
(setq context
|
|
(and (search-backward "\"" nil t)
|
|
(>= (point) beg)
|
|
(or (antlr-syntactic-context) 0))))
|
|
((memq context '(comment block-comment))
|
|
(setq context
|
|
(and (re-search-backward "/[/*]" nil t)
|
|
(>= (point) beg)
|
|
(or (antlr-syntactic-context) 0))))))
|
|
context))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Insert options: do the insertion
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-insert-option-do (level option old area pos)
|
|
"Insert option into buffer at position POS.
|
|
Insert option of level LEVEL and name OPTION. If OLD is non-nil, an
|
|
options area is already exists. If OLD looks like \(BEG \. END), the
|
|
option already exists. Then, BEG is the start position of the option
|
|
value, the position of the `=' or nil, and END is the end position of
|
|
the option value or nil.
|
|
|
|
If the original point position was outside an options area, AREA is nil.
|
|
Otherwise, and if an option specification already exists, AREA is a cons
|
|
cell where the two values determine the area inside the braces."
|
|
(let* ((spec (cdr (assoc option (elt antlr-options-alists (1- level)))))
|
|
(value (antlr-option-spec level option (cdr spec) (consp old))))
|
|
(if (fboundp (car spec)) (funcall (car spec) 'before-input option))
|
|
;; set mark (unless point was inside options area before)
|
|
(if (cond (area (eq antlr-options-push-mark t))
|
|
((numberp antlr-options-push-mark)
|
|
(> (count-lines (min (point) pos) (max (point) pos))
|
|
antlr-options-push-mark))
|
|
(antlr-options-push-mark))
|
|
(push-mark))
|
|
;; read option value -----------------------------------------------------
|
|
(goto-char pos)
|
|
(if (null value)
|
|
;; no option specification found
|
|
(if (y-or-n-p (format "Insert unknown %s option %s? "
|
|
(elt antlr-options-headings (1- level))
|
|
option))
|
|
(message "Insert value for %s option %s"
|
|
(elt antlr-options-headings (1- level))
|
|
option)
|
|
(error "Didn't insert unknown %s option %s"
|
|
(elt antlr-options-headings (1- level))
|
|
option))
|
|
;; option specification found
|
|
(setq value (cdr value))
|
|
(if (car value)
|
|
(let ((initial (and (consp old) (cdr old)
|
|
(buffer-substring (car old) (cdr old)))))
|
|
(setq value (apply (car value)
|
|
(and initial
|
|
(if (eq (aref initial 0) ?\")
|
|
(read initial)
|
|
initial))
|
|
(cdr value))))
|
|
(message (cadr value))
|
|
(setq value nil)))
|
|
;; insert value ----------------------------------------------------------
|
|
(if (consp old)
|
|
(antlr-insert-option-existing old value)
|
|
(if (consp area)
|
|
;; Move outside string/comment if point is inside option spec
|
|
(antlr-syntactic-grammar-depth (point) (car area)))
|
|
(antlr-insert-option-space area old)
|
|
(or old (antlr-insert-option-area level))
|
|
(insert option " = ;")
|
|
(backward-char)
|
|
(if value (insert value)))
|
|
;; final -----------------------------------------------------------------
|
|
(if (fboundp (car spec)) (funcall (car spec) 'after-insertion option))))
|
|
|
|
(defun antlr-option-spec (level option specs existsp)
|
|
"Return version correct option value specification.
|
|
Return specification for option OPTION of kind level LEVEL. SPECS
|
|
should correspond to the VALUE-SPEC... in `antlr-option-alists'.
|
|
EXISTSP determines whether the option already exists."
|
|
(let (value)
|
|
(while (and specs (>= antlr-tool-version (caar specs)))
|
|
(setq value (pop specs)))
|
|
(cond (value) ; found correct spec
|
|
((null specs) nil) ; didn't find any specs
|
|
(existsp (car specs)) ; wrong version, but already present
|
|
((y-or-n-p (format "Insert v%s %s option %s in v%s? "
|
|
(antlr-version-string (caar specs))
|
|
(elt antlr-options-headings (1- level))
|
|
option
|
|
(antlr-version-string antlr-tool-version)))
|
|
(car specs))
|
|
(t
|
|
(error "Didn't insert v%s %s option %s in v%s"
|
|
(antlr-version-string (caar specs))
|
|
(elt antlr-options-headings (1- level))
|
|
option
|
|
(antlr-version-string antlr-tool-version))))))
|
|
|
|
(defun antlr-version-string (version)
|
|
"Format the Antlr version number VERSION, see `antlr-tool-version'."
|
|
(let ((version100 (/ version 100)))
|
|
(format "%d.%d.%d"
|
|
(/ version100 100) (mod version100 100) (mod version 100))))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Insert options: the details (used by `antlr-insert-option-do')
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-insert-option-existing (old value)
|
|
"Insert option value VALUE at point for existing option.
|
|
For OLD, see `antlr-insert-option-do'."
|
|
;; no = => insert =
|
|
(unless (car old) (insert antlr-options-assign-string))
|
|
;; with user input => insert if necessary
|
|
(when value
|
|
(if (cdr old) ; with value
|
|
(if (string-equal value (buffer-substring (car old) (cdr old)))
|
|
(goto-char (cdr old))
|
|
(delete-region (car old) (cdr old))
|
|
(insert value))
|
|
(insert value)))
|
|
(unless (looking-at "\\([^\n=;{}/'\"]\\|'\\([^\n'\\]\\|\\\\.\\)*'\\|\"\\([^\n\"\\]\\|\\\\.\\)*\"\\)*;")
|
|
;; stuff (no =, {, } or /) at point is not followed by ";"
|
|
(insert ";")
|
|
(backward-char)))
|
|
|
|
(defun antlr-insert-option-space (area old)
|
|
"Find appropriate place to insert option, insert newlines/spaces.
|
|
For AREA and OLD, see `antlr-insert-option-do'."
|
|
(let ((orig (point))
|
|
(open t))
|
|
(skip-chars-backward " \t")
|
|
(unless (bolp)
|
|
(let ((before (char-after (1- (point)))))
|
|
(goto-char orig)
|
|
(and old ; with existing options area
|
|
(consp area) ; if point inside existing area
|
|
(not (eq before ?\;)) ; if not at beginning of option
|
|
; => skip to end of option
|
|
(if (and (search-forward ";" (cdr area) t)
|
|
(let ((context (antlr-syntactic-context)))
|
|
(or (null context) (numberp context))))
|
|
(setq orig (point))
|
|
(goto-char orig)))
|
|
(skip-chars-forward " \t")
|
|
|
|
(if (looking-at "$\\|//")
|
|
;; just comment after point => skip (+ lines w/ same col comment)
|
|
(let ((same (if (> (match-end 0) (match-beginning 0))
|
|
(current-column))))
|
|
(beginning-of-line 2)
|
|
(or (bolp) (insert "\n"))
|
|
(when (and same (null area)) ; or (consp area)?
|
|
(while (and (looking-at "[ \t]*\\(//\\)")
|
|
(goto-char (match-beginning 1))
|
|
(= (current-column) same))
|
|
(beginning-of-line 2)
|
|
(or (bolp) (insert "\n")))))
|
|
(goto-char orig)
|
|
(if (null old)
|
|
(progn (insert "\n") (antlr-indent-line))
|
|
(unless (eq (char-after (1- (point))) ?\ )
|
|
(insert " "))
|
|
(unless (eq (char-after (point)) ?\ )
|
|
(insert " ")
|
|
(backward-char))
|
|
(setq open nil)))))
|
|
(when open
|
|
(beginning-of-line 1)
|
|
(insert "\n")
|
|
(backward-char)
|
|
(antlr-indent-line))))
|
|
|
|
(defun antlr-insert-option-area (level)
|
|
"Insert new options area for options of level LEVEL.
|
|
Used by `antlr-insert-option-do'."
|
|
(insert "options {\n\n}")
|
|
(when (and antlr-options-auto-colon
|
|
(memq level '(3 4))
|
|
(save-excursion
|
|
(antlr-c-forward-sws)
|
|
(if (eq (char-after (point)) ?\{) (antlr-skip-sexps 1))
|
|
(not (eq (char-after (point)) ?\:))))
|
|
(insert "\n:")
|
|
(antlr-indent-line)
|
|
(end-of-line 0))
|
|
(backward-char 1)
|
|
(antlr-indent-line)
|
|
(beginning-of-line 0)
|
|
(antlr-indent-line))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Insert options: in `antlr-options-alists'
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-read-value (initial-contents prompt
|
|
&optional as-string table table-x)
|
|
"Read a string from the minibuffer, possibly with completion.
|
|
If INITIAL-CONTENTS is non-nil, insert it in the minibuffer initially.
|
|
PROMPT is a string to prompt with, normally it ends in a colon and a
|
|
space. If AS-STRING is t or is a member \(comparison done with `eq') of
|
|
`antlr-options-style', return printed representation of the user input,
|
|
otherwise return the user input directly.
|
|
|
|
If TABLE or TABLE-X is non-nil, read with completion. The completion
|
|
table is the resulting alist of TABLE-X concatenated with TABLE where
|
|
TABLE can also be a function evaluation to an alist.
|
|
|
|
Used inside `antlr-options-alists'."
|
|
(let* ((completion-ignore-case t) ; dynamic
|
|
(table0 (and (or table table-x)
|
|
(append table-x
|
|
(if (functionp table) (funcall table) table))))
|
|
(input (if table0
|
|
(completing-read prompt table0 nil nil initial-contents)
|
|
(read-from-minibuffer prompt initial-contents))))
|
|
(if (and as-string
|
|
(or (eq as-string t)
|
|
(cdr (assq as-string antlr-options-style))))
|
|
(format "%S" input)
|
|
input)))
|
|
|
|
(defun antlr-read-boolean (initial-contents prompt &optional table)
|
|
"Read a boolean value from the minibuffer, with completion.
|
|
If INITIAL-CONTENTS is non-nil, insert it in the minibuffer initially.
|
|
PROMPT is a string to prompt with, normally it ends in a question mark
|
|
and a space. \"(true or false) \" is appended if TABLE is nil.
|
|
|
|
Read with completion over \"true\", \"false\" and the keys in TABLE, see
|
|
also `antlr-read-value'.
|
|
|
|
Used inside `antlr-options-alists'."
|
|
(antlr-read-value initial-contents
|
|
(if table prompt (concat prompt "(true or false) "))
|
|
nil
|
|
table '(("false") ("true"))))
|
|
|
|
(defun antlr-language-option-extra (phase &rest dummies)
|
|
;; checkdoc-params: (dummies)
|
|
"Change language according to the new value of the \"language\" option.
|
|
Call `antlr-mode' if the new language would be different from the value
|
|
of `antlr-language', keeping the value of variable `font-lock-mode'.
|
|
|
|
Called in PHASE `after-insertion', see `antlr-options-alists'."
|
|
(when (eq phase 'after-insertion)
|
|
(let ((new-language (antlr-language-option t)))
|
|
(or (null new-language)
|
|
(eq new-language antlr-language)
|
|
(let ((font-lock (and (boundp 'font-lock-mode) font-lock-mode)))
|
|
(if font-lock (font-lock-mode 0))
|
|
(antlr-mode)
|
|
(and font-lock (null font-lock-mode) (font-lock-mode 1)))))))
|
|
|
|
(defun antlr-c++-mode-extra (phase option &rest dummies)
|
|
;; checkdoc-params: (option dummies)
|
|
"Warn if C++ option is used with the wrong language.
|
|
Ask user \(\"y or n\"), if a C++ only option is going to be inserted but
|
|
`antlr-language' has not the value `c++-mode'.
|
|
|
|
Called in PHASE `before-input', see `antlr-options-alists'."
|
|
(and (eq phase 'before-input)
|
|
(not (eq antlr-language 'c++-mode))
|
|
(not (y-or-n-p (format "Insert C++ %s option? " option)))
|
|
(error "Didn't insert C++ %s option with language %s"
|
|
option (cadr (assq antlr-language antlr-language-alist)))))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Compute dependencies
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-file-dependencies ()
|
|
"Return dependencies for grammar in current buffer.
|
|
The result looks like \(FILE \(CLASSES \. SUPERS) VOCABS \. LANGUAGE)
|
|
where CLASSES = ((CLASS . CLASS-EVOCAB) ...),
|
|
SUPERS = ((SUPER . USE-EVOCAB-P) ...), and
|
|
VOCABS = ((EVOCAB ...) . (IVOCAB ...))
|
|
|
|
FILE is the current buffer's file-name without directory part and
|
|
LANGUAGE is the value of `antlr-language' in the current buffer. Each
|
|
EVOCAB is an export vocabulary and each IVOCAB is an import vocabulary.
|
|
|
|
Each CLASS is a grammar class with its export vocabulary CLASS-EVOCAB.
|
|
Each SUPER is a super-grammar class where USE-EVOCAB-P indicates whether
|
|
its export vocabulary is used as an import vocabulary."
|
|
(unless buffer-file-name
|
|
(error "Grammar buffer does not visit a file"))
|
|
(let (classes export-vocabs import-vocabs superclasses default-vocab)
|
|
(antlr-with-syntax-table antlr-action-syntax-table
|
|
(goto-char (point-min))
|
|
(while (antlr-re-search-forward antlr-class-header-regexp nil)
|
|
;; parse class definition --------------------------------------------
|
|
(let* ((class (match-string 2))
|
|
(sclass (match-string 4))
|
|
;; export vocab defaults to class name (first grammar in file)
|
|
;; or to the export vocab of the first grammar in file:
|
|
(evocab (or default-vocab class))
|
|
(ivocab nil))
|
|
(goto-char (match-end 0))
|
|
(antlr-c-forward-sws)
|
|
(while (looking-at "options\\>\\|\\(tokens\\)\\>")
|
|
(if (match-beginning 1)
|
|
(antlr-skip-sexps 2)
|
|
(goto-char (match-end 0))
|
|
(antlr-c-forward-sws)
|
|
;; parse grammar option sections -------------------------------
|
|
(when (eq (char-after (point)) ?\{)
|
|
(let* ((beg (1+ (point)))
|
|
(end (1- (antlr-skip-sexps 1)))
|
|
(cont (point)))
|
|
(goto-char beg)
|
|
(if (re-search-forward "\\<exportVocab[ \t]*=[ \t]*\\([A-Za-z\300-\326\330-\337]\\sw*\\)" end t)
|
|
(setq evocab (match-string 1)))
|
|
(goto-char beg)
|
|
(if (re-search-forward "\\<importVocab[ \t]*=[ \t]*\\([A-Za-z\300-\326\330-\337]\\sw*\\)" end t)
|
|
(setq ivocab (match-string 1)))
|
|
(goto-char cont)))))
|
|
(unless (member sclass '("Parser" "Lexer" "TreeParser"))
|
|
(let ((super (assoc sclass superclasses)))
|
|
(if super
|
|
(or ivocab (setcdr super t))
|
|
(push (cons sclass (null ivocab)) superclasses))))
|
|
;; remember class with export vocabulary:
|
|
(push (cons class evocab) classes)
|
|
;; default export vocab is export vocab of first grammar in file:
|
|
(or default-vocab (setq default-vocab evocab))
|
|
(or (member evocab export-vocabs) (push evocab export-vocabs))
|
|
(or (null ivocab)
|
|
(member ivocab import-vocabs) (push ivocab import-vocabs)))))
|
|
(if classes
|
|
(list* (file-name-nondirectory buffer-file-name)
|
|
(cons (nreverse classes) (nreverse superclasses))
|
|
(cons (nreverse export-vocabs) (nreverse import-vocabs))
|
|
antlr-language))))
|
|
|
|
(defun antlr-directory-dependencies (dirname)
|
|
"Return dependencies for all grammar files in directory DIRNAME.
|
|
The result looks like \((CLASS-SPEC ...) \. \(FILE-DEP ...))
|
|
where CLASS-SPEC = (CLASS (FILE \. EVOCAB) ...).
|
|
|
|
FILE-DEP are the dependencies for each grammar file in DIRNAME, see
|
|
`antlr-file-dependencies'. For each grammar class CLASS, FILE is a
|
|
grammar file in which CLASS is defined and EVOCAB is the name of the
|
|
export vocabulary specified in that file."
|
|
(let ((grammar (directory-files dirname t "\\.g\\'")))
|
|
(when grammar
|
|
(let ((temp-buffer (get-buffer-create
|
|
(generate-new-buffer-name " *temp*")))
|
|
(antlr-imenu-name nil) ; dynamic-let: no imenu
|
|
(expanded-regexp (concat (format (regexp-quote
|
|
(cadr antlr-special-file-formats))
|
|
".+")
|
|
"\\'"))
|
|
classes dependencies)
|
|
(unwind-protect
|
|
(save-excursion
|
|
(set-buffer temp-buffer)
|
|
(widen) ; just in case...
|
|
(dolist (file grammar)
|
|
(when (and (file-regular-p file)
|
|
(null (string-match expanded-regexp file)))
|
|
(insert-file-contents file t nil nil t)
|
|
(normal-mode t) ; necessary for major-mode, syntax
|
|
; table and `antlr-language'
|
|
(when (eq major-mode 'antlr-mode)
|
|
(let* ((file-deps (antlr-file-dependencies))
|
|
(file (car file-deps)))
|
|
(when file-deps
|
|
(dolist (class-def (caadr file-deps))
|
|
(let ((file-evocab (cons file (cdr class-def)))
|
|
(class-spec (assoc (car class-def) classes)))
|
|
(if class-spec
|
|
(nconc (cdr class-spec) (list file-evocab))
|
|
(push (list (car class-def) file-evocab)
|
|
classes))))
|
|
(push file-deps dependencies)))))))
|
|
(kill-buffer temp-buffer))
|
|
(cons (nreverse classes) (nreverse dependencies))))))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Compilation: run ANTLR tool
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-superclasses-glibs (supers classes)
|
|
"Compute the grammar lib option for the super grammars SUPERS.
|
|
Look in CLASSES for the right grammar lib files for SUPERS. SUPERS is
|
|
part SUPER in the result of `antlr-file-dependencies'. CLASSES is the
|
|
part \(CLASS-SPEC ...) in the result of `antlr-directory-dependencies'.
|
|
|
|
The result looks like \(OPTION WITH-UNKNOWN GLIB ...). OPTION is the
|
|
complete \"-glib\" option. WITH-UNKNOWN has value t iff there is none
|
|
or more than one grammar file for at least one super grammar.
|
|
|
|
Each GLIB looks like \(GRAMMAR-FILE \. EVOCAB). GRAMMAR-FILE is a file
|
|
in which a super-grammar is defined. EVOCAB is the value of the export
|
|
vocabulary of the super-grammar or nil if it is not needed."
|
|
;; If the superclass is defined in the same file, that file will be included
|
|
;; with -glib again. This will lead to a redefinition. But defining a
|
|
;; analyzer of the same class twice in a file will lead to an error anyway...
|
|
(let (glibs unknown)
|
|
(while supers
|
|
(let* ((super (pop supers))
|
|
(sup-files (cdr (assoc (car super) classes)))
|
|
(file (and sup-files (null (cdr sup-files)) (car sup-files))))
|
|
(or file (setq unknown t)) ; not exactly one file
|
|
(push (cons (or (car file)
|
|
(format (car antlr-unknown-file-formats)
|
|
(car super)))
|
|
(and (cdr super)
|
|
(or (cdr file)
|
|
(format (cadr antlr-unknown-file-formats)
|
|
(car super)))))
|
|
glibs)))
|
|
(cons (if glibs (concat " -glib " (mapconcat 'car glibs ";")) "")
|
|
(cons unknown glibs))))
|
|
|
|
(defun antlr-run-tool (command file &optional saved)
|
|
"Run Antlr took COMMAND on grammar FILE.
|
|
When called interactively, COMMAND is read from the minibuffer and
|
|
defaults to `antlr-tool-command' with a computed \"-glib\" option if
|
|
necessary.
|
|
|
|
Save all buffers first unless optional value SAVED is non-nil. When
|
|
called interactively, the buffers are always saved, see also variable
|
|
`antlr-ask-about-save'."
|
|
(interactive (antlr-run-tool-interactive))
|
|
(or saved (save-some-buffers (not antlr-ask-about-save)))
|
|
(let ((default-directory (file-name-directory file)))
|
|
(compilation-start (concat command " " (file-name-nondirectory file))
|
|
nil #'(lambda (mode-name) "*Antlr-Run*"))))
|
|
|
|
(defun antlr-run-tool-interactive ()
|
|
;; code in `interactive' is not compiled
|
|
"Interactive specification for `antlr-run-tool'.
|
|
Use prefix argument ARG to return \(COMMAND FILE SAVED)."
|
|
(let* ((supers (cdadr (save-excursion
|
|
(save-restriction
|
|
(widen)
|
|
(antlr-file-dependencies)))))
|
|
(glibs ""))
|
|
(when supers
|
|
(save-some-buffers (not antlr-ask-about-save) nil)
|
|
(setq glibs (car (antlr-superclasses-glibs
|
|
supers
|
|
(car (antlr-directory-dependencies
|
|
(antlr-default-directory)))))))
|
|
(list (antlr-read-shell-command "Run Antlr on current file with: "
|
|
(concat antlr-tool-command glibs " "))
|
|
buffer-file-name
|
|
supers)))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Makefile creation
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-makefile-insert-variable (number pre post)
|
|
"Insert Makefile variable numbered NUMBER according to specification.
|
|
Also insert strings PRE and POST before and after the variable."
|
|
(let ((spec (cadr antlr-makefile-specification)))
|
|
(when spec
|
|
(insert pre
|
|
(if number (format (cadr spec) number) (car spec))
|
|
post))))
|
|
|
|
(defun antlr-insert-makefile-rules (&optional in-makefile)
|
|
"Insert Makefile rules in the current buffer at point.
|
|
IN-MAKEFILE is non-nil, if the current buffer is the Makefile. See
|
|
command `antlr-show-makefile-rules' for detail."
|
|
(let* ((dirname (antlr-default-directory))
|
|
(deps0 (antlr-directory-dependencies dirname))
|
|
(classes (car deps0)) ; CLASS -> (FILE . EVOCAB) ...
|
|
(deps (cdr deps0)) ; FILE -> (c . s) (ev . iv) . LANGUAGE
|
|
(with-error nil)
|
|
(gen-sep (or (caddr (cadr antlr-makefile-specification)) " "))
|
|
(n (and (cdr deps) (cadr antlr-makefile-specification) 0)))
|
|
(or in-makefile (set-buffer standard-output))
|
|
(dolist (dep deps)
|
|
(let ((supers (cdadr dep))
|
|
(lang (cdr (assoc (cdddr dep) antlr-file-formats-alist))))
|
|
(if n (incf n))
|
|
(antlr-makefile-insert-variable n "" " =")
|
|
(if supers
|
|
(insert " "
|
|
(format (cadr antlr-special-file-formats)
|
|
(file-name-sans-extension (car dep)))))
|
|
(dolist (class-def (caadr dep))
|
|
(let ((sep gen-sep))
|
|
(dolist (class-file (cadr lang))
|
|
(insert sep (format class-file (car class-def)))
|
|
(setq sep " "))))
|
|
(dolist (evocab (caaddr dep))
|
|
(let ((sep gen-sep))
|
|
(dolist (vocab-file (cons (car antlr-special-file-formats)
|
|
(car lang)))
|
|
(insert sep (format vocab-file evocab))
|
|
(setq sep " "))))
|
|
(antlr-makefile-insert-variable n "\n$(" ")")
|
|
(insert ": " (car dep))
|
|
(dolist (ivocab (cdaddr dep))
|
|
(insert " " (format (car antlr-special-file-formats) ivocab)))
|
|
(let ((glibs (antlr-superclasses-glibs supers classes)))
|
|
(if (cadr glibs) (setq with-error t))
|
|
(dolist (super (cddr glibs))
|
|
(insert " " (car super))
|
|
(if (cdr super)
|
|
(insert " " (format (car antlr-special-file-formats)
|
|
(cdr super)))))
|
|
(insert "\n\t"
|
|
(caddr antlr-makefile-specification)
|
|
(car glibs)
|
|
" $<\n"
|
|
(car antlr-makefile-specification)))))
|
|
(if n
|
|
(let ((i 0))
|
|
(antlr-makefile-insert-variable nil "" " =")
|
|
(while (<= (incf i) n)
|
|
(antlr-makefile-insert-variable i " $(" ")"))
|
|
(insert "\n" (car antlr-makefile-specification))))
|
|
(if (string-equal (car antlr-makefile-specification) "\n")
|
|
(backward-delete-char 1))
|
|
(when with-error
|
|
(goto-char (point-min))
|
|
(insert antlr-help-unknown-file-text))
|
|
(unless in-makefile
|
|
(copy-region-as-kill (point-min) (point-max))
|
|
(goto-char (point-min))
|
|
(insert (format antlr-help-rules-intro dirname)))))
|
|
|
|
;;;###autoload
|
|
(defun antlr-show-makefile-rules ()
|
|
"Show Makefile rules for all grammar files in the current directory.
|
|
If the `major-mode' of the current buffer has the value `makefile-mode',
|
|
the rules are directory inserted at point. Otherwise, a *Help* buffer
|
|
is shown with the rules which are also put into the `kill-ring' for
|
|
\\[yank].
|
|
|
|
This command considers import/export vocabularies and grammar
|
|
inheritance and provides a value for the \"-glib\" option if necessary.
|
|
Customize variable `antlr-makefile-specification' for the appearance of
|
|
the rules.
|
|
|
|
If the file for a super-grammar cannot be determined, special file names
|
|
are used according to variable `antlr-unknown-file-formats' and a
|
|
commentary with value `antlr-help-unknown-file-text' is added. The
|
|
*Help* buffer always starts with the text in `antlr-help-rules-intro'."
|
|
(interactive)
|
|
(if (null (eq major-mode 'makefile-mode))
|
|
(antlr-with-displaying-help-buffer 'antlr-insert-makefile-rules)
|
|
(push-mark)
|
|
(antlr-insert-makefile-rules t)))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Indentation
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-indent-line ()
|
|
"Indent the current line as ANTLR grammar code.
|
|
The indentation of grammar lines are calculated by `c-basic-offset',
|
|
multiplied by:
|
|
- the level of the paren/brace/bracket depth,
|
|
- plus 0/2/1, depending on the position inside the rule: header, body,
|
|
exception part,
|
|
- minus 1 if `antlr-indent-item-regexp' matches the beginning of the
|
|
line starting from the first non-whitespace.
|
|
|
|
Lines inside block comments are indented by `c-indent-line' according to
|
|
`antlr-indent-comment'.
|
|
|
|
Lines in actions except top-level actions in a header part or an option
|
|
area are indented by `c-indent-line'.
|
|
|
|
Lines in header actions are indented at column 0 if `antlr-language'
|
|
equals to a key in `antlr-indent-at-bol-alist' and the line starting at
|
|
the first non-whitespace is matched by the corresponding value.
|
|
|
|
For the initialization of `c-basic-offset', see `antlr-indent-style' and,
|
|
to a lesser extent, `antlr-tab-offset-alist'."
|
|
(save-restriction
|
|
(let ((orig (point))
|
|
(min0 (point-min))
|
|
bol boi indent syntax cc-syntax)
|
|
(widen)
|
|
(beginning-of-line)
|
|
(setq bol (point))
|
|
(if (< bol min0)
|
|
(error "Beginning of current line not visible"))
|
|
(skip-chars-forward " \t")
|
|
(setq boi (point))
|
|
;; check syntax at beginning of indentation ----------------------------
|
|
(antlr-with-syntax-table antlr-action-syntax-table
|
|
(antlr-invalidate-context-cache)
|
|
(setq syntax (antlr-syntactic-context))
|
|
(cond ((symbolp syntax)
|
|
(setq indent nil)) ; block-comments, strings, (comments)
|
|
((progn
|
|
(antlr-next-rule -1 t)
|
|
(if (antlr-search-forward ":") (< boi (1- (point))) t))
|
|
(setq indent 0)) ; in rule header
|
|
((if (antlr-search-forward ";") (< boi (point)) t)
|
|
(setq indent 2)) ; in rule body
|
|
(t
|
|
(forward-char)
|
|
(antlr-skip-exception-part nil)
|
|
(setq indent (if (> (point) boi) 1 0))))) ; in exception part?
|
|
;; check whether to use indentation engine of cc-mode ------------------
|
|
(antlr-invalidate-context-cache)
|
|
(goto-char boi)
|
|
(when (and indent (> syntax 0))
|
|
(cond ((> syntax 1) ; block in action => use cc-mode
|
|
(setq indent nil))
|
|
((and (= indent 0)
|
|
(assq antlr-language antlr-indent-at-bol-alist)
|
|
(looking-at (cdr (assq antlr-language
|
|
antlr-indent-at-bol-alist))))
|
|
(setq syntax 'bol))
|
|
((setq cc-syntax (c-guess-basic-syntax))
|
|
(let ((cc cc-syntax) symbol)
|
|
(while (setq symbol (pop cc))
|
|
(when (cdr symbol)
|
|
(or (memq (car symbol)
|
|
antlr-disabling-cc-syntactic-symbols)
|
|
(setq indent nil))
|
|
(setq cc nil)))))))
|
|
;;; ((= indent 1) ; exception part => use cc-mode
|
|
;;; (setq indent nil))
|
|
;;; ((save-restriction ; not in option part => cc-mode
|
|
;;; (goto-char (scan-lists (point) -1 1))
|
|
;;; (skip-chars-backward " \t\n")
|
|
;;; (narrow-to-region (point-min) (point))
|
|
;;; (not (re-search-backward "\\<options\\'" nil t)))
|
|
;;; (setq indent nil)))))
|
|
;; compute the corresponding indentation and indent --------------------
|
|
(if (null indent)
|
|
;; Use the indentation engine of cc-mode
|
|
(progn
|
|
(goto-char orig)
|
|
(if (or (numberp syntax)
|
|
(if (eq syntax 'string) nil (eq antlr-indent-comment t)))
|
|
(c-indent-line cc-syntax)))
|
|
;; do it ourselves
|
|
(goto-char boi)
|
|
(unless (symbolp syntax) ; direct indentation
|
|
;;(antlr-invalidate-context-cache)
|
|
(incf indent (antlr-syntactic-context))
|
|
(and (> indent 0) (looking-at antlr-indent-item-regexp) (decf indent))
|
|
(setq indent (* indent c-basic-offset)))
|
|
;; the usual major-mode indent stuff ---------------------------------
|
|
(setq orig (- (point-max) orig))
|
|
(unless (= (current-column) indent)
|
|
(delete-region bol boi)
|
|
(beginning-of-line)
|
|
(indent-to indent))
|
|
;; If initial point was within line's indentation,
|
|
;; position after the indentation. Else stay at same point in text.
|
|
(if (> (- (point-max) orig) (point))
|
|
(goto-char (- (point-max) orig)))))))
|
|
|
|
(defun antlr-indent-command (&optional arg)
|
|
"Indent the current line or insert tabs/spaces.
|
|
With optional prefix argument ARG or if the previous command was this
|
|
command, insert ARG tabs or spaces according to `indent-tabs-mode'.
|
|
Otherwise, indent the current line with `antlr-indent-line'."
|
|
(interactive "*P")
|
|
(if (or arg (eq last-command 'antlr-indent-command))
|
|
(insert-tab arg)
|
|
(let ((antlr-indent-comment (and antlr-indent-comment t))) ; dynamic
|
|
(antlr-indent-line))))
|
|
|
|
(defun antlr-electric-character (&optional arg)
|
|
"Insert the character you type and indent the current line.
|
|
Insert the character like `self-insert-command' and indent the current
|
|
line as `antlr-indent-command' does. Do not indent the line if
|
|
|
|
* this command is called with a prefix argument ARG,
|
|
* there are characters except whitespaces between point and the
|
|
beginning of the line, or
|
|
* point is not inside a normal grammar code, { and } are also OK in
|
|
actions.
|
|
|
|
This command is useful for a character which has some special meaning in
|
|
ANTLR's syntax and influences the auto indentation, see
|
|
`antlr-indent-item-regexp'."
|
|
(interactive "*P")
|
|
(if (or arg
|
|
(save-excursion (skip-chars-backward " \t") (not (bolp)))
|
|
(antlr-with-syntax-table antlr-action-syntax-table
|
|
(antlr-invalidate-context-cache)
|
|
(let ((context (antlr-syntactic-context)))
|
|
(not (and (numberp context)
|
|
(or (zerop context)
|
|
(memq last-command-char '(?\{ ?\}))))))))
|
|
(self-insert-command (prefix-numeric-value arg))
|
|
(self-insert-command (prefix-numeric-value arg))
|
|
(antlr-indent-line)))
|
|
|
|
|
|
;;;===========================================================================
|
|
;;; Mode entry
|
|
;;;===========================================================================
|
|
|
|
(defun antlr-c-init-language-vars ()
|
|
"Like `c-init-language-vars-for' when using cc-mode before v5.29."
|
|
(let ((settings ; (cdr '(setq...)) will be optimized
|
|
(if (eq antlr-language 'c++-mode)
|
|
(cdr '(setq ;' from `c++-mode' v5.20, v5.28
|
|
c-keywords (c-identifier-re c-C++-keywords)
|
|
c-conditional-key c-C++-conditional-key
|
|
c-comment-start-regexp c-C++-comment-start-regexp
|
|
c-class-key c-C++-class-key
|
|
c-extra-toplevel-key c-C++-extra-toplevel-key
|
|
c-access-key c-C++-access-key
|
|
c-recognize-knr-p nil
|
|
c-bitfield-key c-C-bitfield-key ; v5.28
|
|
))
|
|
(cdr '(setq ; from `java-mode' v5.20, v5.28
|
|
c-keywords (c-identifier-re c-Java-keywords)
|
|
c-conditional-key c-Java-conditional-key
|
|
c-comment-start-regexp c-Java-comment-start-regexp
|
|
c-class-key c-Java-class-key
|
|
c-method-key nil
|
|
c-baseclass-key nil
|
|
c-recognize-knr-p nil
|
|
c-access-key c-Java-access-key ; v5.20
|
|
c-inexpr-class-key c-Java-inexpr-class-key ; v5.28
|
|
)))))
|
|
(while settings
|
|
(when (boundp (car settings))
|
|
(ignore-errors
|
|
(set (car settings) (eval (cadr settings)))))
|
|
(setq settings (cddr settings)))))
|
|
|
|
(defun antlr-language-option (search)
|
|
"Find language in `antlr-language-alist' for language option.
|
|
If SEARCH is non-nil, find element for language option. Otherwise, find
|
|
the default language."
|
|
(let ((value (and search
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(re-search-forward (cdr antlr-language-limit-n-regexp)
|
|
(car antlr-language-limit-n-regexp)
|
|
t))
|
|
(match-string 1)))
|
|
(seq antlr-language-alist)
|
|
r)
|
|
;; Like (find VALUE antlr-language-alist :key 'cddr :test 'member)
|
|
(while seq
|
|
(setq r (pop seq))
|
|
(if (member value (cddr r))
|
|
(setq seq nil) ; stop
|
|
(setq r nil))) ; no result yet
|
|
(car r)))
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;;;###autoload
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(defun antlr-mode ()
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"Major mode for editing ANTLR grammar files.
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\\{antlr-mode-map}"
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(interactive)
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(kill-all-local-variables)
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(c-initialize-cc-mode) ; cc-mode is required
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(unless (fboundp 'c-forward-sws) ; see above
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(fset 'antlr-c-forward-sws 'c-forward-syntactic-ws))
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;; ANTLR specific ----------------------------------------------------------
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(setq major-mode 'antlr-mode
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mode-name "Antlr")
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(setq local-abbrev-table antlr-mode-abbrev-table)
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(unless antlr-mode-syntax-table
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(setq antlr-mode-syntax-table (make-syntax-table))
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(c-populate-syntax-table antlr-mode-syntax-table))
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(set-syntax-table antlr-mode-syntax-table)
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(unless antlr-action-syntax-table
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(let ((slist (nth 3 antlr-font-lock-defaults)))
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(setq antlr-action-syntax-table
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(copy-syntax-table antlr-mode-syntax-table))
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(while slist
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(modify-syntax-entry (caar slist) (cdar slist)
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antlr-action-syntax-table)
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(setq slist (cdr slist)))))
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(use-local-map antlr-mode-map)
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(make-local-variable 'antlr-language)
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(unless antlr-language
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(setq antlr-language
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(or (antlr-language-option t) (antlr-language-option nil))))
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(if (stringp (cadr (assq antlr-language antlr-language-alist)))
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(setq mode-name
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(concat "Antlr."
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(cadr (assq antlr-language antlr-language-alist)))))
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;; indentation, for the C engine -------------------------------------------
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(setq c-buffer-is-cc-mode antlr-language)
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(cond ((fboundp 'c-init-language-vars-for) ; cc-mode 5.30.5+
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(c-init-language-vars-for antlr-language))
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((fboundp 'c-init-c-language-vars) ; cc-mode 5.30 to 5.30.4
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(c-init-c-language-vars) ; not perfect, but OK
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(setq c-recognize-knr-p nil))
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((fboundp 'c-init-language-vars) ; cc-mode 5.29
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(let ((init-fn 'c-init-language-vars))
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(funcall init-fn))) ; is a function in v5.29
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(t ; cc-mode upto 5.28
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(antlr-c-init-language-vars))) ; do it myself
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(c-basic-common-init antlr-language (or antlr-indent-style "gnu"))
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(make-local-variable 'outline-regexp)
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(make-local-variable 'outline-level)
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|
(make-local-variable 'require-final-newline)
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|
(make-local-variable 'indent-line-function)
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|
(make-local-variable 'indent-region-function)
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(setq outline-regexp "[^#\n\^M]"
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outline-level 'c-outline-level) ; TODO: define own
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(setq require-final-newline mode-require-final-newline)
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(setq indent-line-function 'antlr-indent-line
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indent-region-function nil) ; too lazy
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(setq comment-start "// "
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comment-end ""
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|
comment-start-skip "/\\*+ *\\|// *")
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|
;; various -----------------------------------------------------------------
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|
(make-local-variable 'font-lock-defaults)
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|
(setq font-lock-defaults antlr-font-lock-defaults)
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|
(easy-menu-add antlr-mode-menu)
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|
(make-local-variable 'imenu-create-index-function)
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|
(setq imenu-create-index-function 'antlr-imenu-create-index-function)
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|
(make-local-variable 'imenu-generic-expression)
|
|
(setq imenu-generic-expression t) ; fool stupid test
|
|
(and antlr-imenu-name ; there should be a global variable...
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|
(fboundp 'imenu-add-to-menubar)
|
|
(imenu-add-to-menubar
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|
(if (stringp antlr-imenu-name) antlr-imenu-name "Index")))
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|
(antlr-set-tabs)
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|
(run-mode-hooks 'antlr-mode-hook))
|
|
|
|
;; A smarter version of `group-buffers-menu-by-mode-then-alphabetically' (in
|
|
;; XEmacs) could use the following property. The header of the submenu would
|
|
;; be "Antlr" instead of "Antlr.C++" or (not and!) "Antlr.Java".
|
|
(put 'antlr-mode 'mode-name "Antlr")
|
|
|
|
;;;###autoload
|
|
(defun antlr-set-tabs ()
|
|
"Use ANTLR's convention for TABs according to `antlr-tab-offset-alist'.
|
|
Used in `antlr-mode'. Also a useful function in `java-mode-hook'."
|
|
(if buffer-file-name
|
|
(let ((alist antlr-tab-offset-alist) elem)
|
|
(while alist
|
|
(setq elem (pop alist))
|
|
(and (or (null (car elem)) (eq (car elem) major-mode))
|
|
(or (null (cadr elem))
|
|
(string-match (cadr elem) buffer-file-name))
|
|
(setq tab-width (caddr elem)
|
|
indent-tabs-mode (cadddr elem)
|
|
alist nil))))))
|
|
|
|
;;; Local IspellPersDict: .ispell_antlr
|
|
|
|
;;; arch-tag: 5de2be79-3d13-4560-8fbc-f7d0234dcb5c
|
|
;;; antlr-mode.el ends here
|