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     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/emacs-pkg-vala-mode/stuff/vala-mode.el	Fri Apr 24 17:53:05 2020 +0100
     1.3 @@ -0,0 +1,395 @@
     1.4 +;;; vala-mode.el --- Vala mode derived mode
     1.5 +
     1.6 +;; Author:     2005 Dylan R. E. Moonfire
     1.7 +;;	       2008 Étienne BERSAC
     1.8 +;; Maintainer: Étienne BERSAC <bersace03@laposte.net>
     1.9 +;; Created:    2008 May the 4th
    1.10 +;; Modified:   May 2008
    1.11 +;; Version:    0.1
    1.12 +;; Keywords:   vala languages oop
    1.13 +
    1.14 +;; This program is free software; you can redistribute it and/or modify
    1.15 +;; it under the terms of the GNU General Public License as published by
    1.16 +;; the Free Software Foundation; either version 2 of the License, or
    1.17 +;; (at your option) any later version.
    1.18 +;; 
    1.19 +;; This program is distributed in the hope that it will be useful,
    1.20 +;; but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.21 +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.22 +;; GNU General Public License for more details.
    1.23 +;; 
    1.24 +;; You should have received a copy of the GNU General Public License
    1.25 +;; along with this program; see the file COPYING.  If not, write to
    1.26 +;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    1.27 +;; Boston, MA 02111-1307, USA.
    1.28 +
    1.29 +;;; Commentary:
    1.30 +;;
    1.31 +;;    See http://live.gnome.org/Vala for details about Vala language.
    1.32 +;;
    1.33 +;;    This is a separate mode to implement the Vala constructs and
    1.34 +;;    font-locking. It is mostly the csharp-mode from
    1.35 +;;    http://mfgames.com/linux/csharp-mode with vala specific keywords
    1.36 +;;    and filename suffixes.
    1.37 +;;
    1.38 +;;    Note: The interface used in this file requires CC Mode 5.30 or
    1.39 +;;    later.
    1.40 +
    1.41 +;;; .emacs (don't put in (require 'vala-mode))
    1.42 +;; (autoload 'vala-mode "vala-mode" "Major mode for editing Vala code." t)
    1.43 +;; (setq auto-mode-alist
    1.44 +;;    (append '(("\\.vala$" . vala-mode)) auto-mode-alist))
    1.45 +
    1.46 +;;; Versions:
    1.47 +;;
    1.48 +;;	0.1	: Initial version based on csharp-mode
    1.49 +;;
    1.50 +
    1.51 +;; This is a copy of the function in cc-mode which is used to handle
    1.52 +;; the eval-when-compile which is needed during other times.
    1.53 +(defun c-filter-ops (ops opgroup-filter op-filter &optional xlate)
    1.54 +  ;; See cc-langs.el, a direct copy.
    1.55 +  (unless (listp (car-safe ops))
    1.56 +    (setq ops (list ops)))
    1.57 +  (cond ((eq opgroup-filter t)
    1.58 +	 (setq opgroup-filter (lambda (opgroup) t)))
    1.59 +	((not (functionp opgroup-filter))
    1.60 +	 (setq opgroup-filter `(lambda (opgroup)
    1.61 +				 (memq opgroup ',opgroup-filter)))))
    1.62 +  (cond ((eq op-filter t)
    1.63 +	 (setq op-filter (lambda (op) t)))
    1.64 +	((stringp op-filter)
    1.65 +	 (setq op-filter `(lambda (op)
    1.66 +			    (string-match ,op-filter op)))))
    1.67 +  (unless xlate
    1.68 +    (setq xlate 'identity))
    1.69 +  (c-with-syntax-table (c-lang-const c-mode-syntax-table)
    1.70 +    (delete-duplicates
    1.71 +     (mapcan (lambda (opgroup)
    1.72 +	       (when (if (symbolp (car opgroup))
    1.73 +			 (when (funcall opgroup-filter (car opgroup))
    1.74 +			   (setq opgroup (cdr opgroup))
    1.75 +			   t)
    1.76 +		       t)
    1.77 +		 (mapcan (lambda (op)
    1.78 +			   (when (funcall op-filter op)
    1.79 +			     (let ((res (funcall xlate op)))
    1.80 +			       (if (listp res) res (list res)))))
    1.81 +			 opgroup)))
    1.82 +	     ops)
    1.83 +     :test 'equal)))
    1.84 +
    1.85 +;; This inserts the bulk of the code.
    1.86 +(require 'cc-mode)
    1.87 +
    1.88 +;; These are only required at compile time to get the sources for the
    1.89 +;; language constants.  (The cc-fonts require and the font-lock
    1.90 +;; related constants could additionally be put inside an
    1.91 +;; (eval-after-load "font-lock" ...) but then some trickery is
    1.92 +;; necessary to get them compiled.)
    1.93 +(eval-when-compile
    1.94 +  (let ((load-path
    1.95 +	 (if (and (boundp 'byte-compile-dest-file)
    1.96 +		  (stringp byte-compile-dest-file))
    1.97 +	     (cons (file-name-directory byte-compile-dest-file) load-path)
    1.98 +	   load-path)))
    1.99 +    (load "cc-mode" nil t)
   1.100 +    (load "cc-fonts" nil t)
   1.101 +    (load "cc-langs" nil t)))
   1.102 +
   1.103 +(eval-and-compile
   1.104 +  ;; Make our mode known to the language constant system.  Use Java
   1.105 +  ;; mode as the fallback for the constants we don't change here.
   1.106 +  ;; This needs to be done also at compile time since the language
   1.107 +  ;; constants are evaluated then.
   1.108 +  (c-add-language 'vala-mode 'java-mode))
   1.109 +
   1.110 +;; Java uses a series of regexes to change the font-lock for class
   1.111 +;; references. The problem comes in because Java uses Pascal (leading
   1.112 +;; space in names, SomeClass) for class and package names, but
   1.113 +;; Camel-casing (initial lowercase, upper case in words,
   1.114 +;; i.e. someVariable) for variables.
   1.115 +;;(error (byte-compile-dest-file))
   1.116 +;;(error (c-get-current-file))
   1.117 +(c-lang-defconst c-opt-after-id-concat-key
   1.118 +  vala (if (c-lang-const c-opt-identifier-concat-key)
   1.119 +	   (c-lang-const c-symbol-start)))
   1.120 +
   1.121 +(c-lang-defconst c-basic-matchers-before
   1.122 +  vala `(
   1.123 +;;;; Font-lock the attributes by searching for the
   1.124 +;;;; appropriate regex and marking it as TODO.
   1.125 +	 ;;,`(,(concat "\\(" vala-attribute-regex "\\)")
   1.126 +	 ;;   0 font-lock-function-name-face)	   
   1.127 +
   1.128 +	 ;; Put a warning face on the opener of unclosed strings that
   1.129 +	 ;; can't span lines.  Later font
   1.130 +	 ;; lock packages have a `font-lock-syntactic-face-function' for
   1.131 +	 ;; this, but it doesn't give the control we want since any
   1.132 +	 ;; fontification done inside the function will be
   1.133 +	 ;; unconditionally overridden.
   1.134 +	 ,(c-make-font-lock-search-function
   1.135 +	   ;; Match a char before the string starter to make
   1.136 +	   ;; `c-skip-comments-and-strings' work correctly.
   1.137 +	   (concat ".\\(" c-string-limit-regexp "\\)")
   1.138 +	   '((c-font-lock-invalid-string)))
   1.139 +	   
   1.140 +	 ;; Fontify keyword constants.
   1.141 +	 ,@(when (c-lang-const c-constant-kwds)
   1.142 +	     (let ((re (c-make-keywords-re nil
   1.143 +			 (c-lang-const c-constant-kwds))))
   1.144 +	       `((eval . (list ,(concat "\\<\\(" re "\\)\\>")
   1.145 +			       1 c-constant-face-name)))))
   1.146 +	   
   1.147 +	 ;; Fontify all keywords except the primitive types.
   1.148 +	 ,`(,(concat "\\<" (c-lang-const c-regular-keywords-regexp))
   1.149 +	    1 font-lock-keyword-face)
   1.150 +
   1.151 +	 ;; Fontify leading identifiers in fully
   1.152 +	 ;; qualified names like "Foo.Bar".
   1.153 +	 ,@(when (c-lang-const c-opt-identifier-concat-key)
   1.154 +	     `((,(byte-compile
   1.155 +		  `(lambda (limit)
   1.156 +		     (while (re-search-forward
   1.157 +			     ,(concat "\\(\\<" ; 1
   1.158 +				      "\\(" (c-lang-const c-symbol-key)
   1.159 +				      "\\)" ; 2
   1.160 +				      "[ \t\n\r\f\v]*"
   1.161 +				      (c-lang-const
   1.162 +				       c-opt-identifier-concat-key)
   1.163 +				      "[ \t\n\r\f\v]*"
   1.164 +				      "\\)"
   1.165 +				      "\\("
   1.166 +				      (c-lang-const
   1.167 +				       c-opt-after-id-concat-key)
   1.168 +				      "\\)")
   1.169 +			     limit t)
   1.170 +		       (unless (progn
   1.171 +				 (goto-char (match-beginning 0))
   1.172 +				 (c-skip-comments-and-strings limit))
   1.173 +			 (or (get-text-property (match-beginning 2) 'face)
   1.174 +			     (c-put-font-lock-face (match-beginning 2)
   1.175 +						   (match-end 2)
   1.176 +						   c-reference-face-name))
   1.177 +			 (goto-char (match-end 1)))))))))
   1.178 +	 ))
   1.179 +
   1.180 +;; Vala does not allow a leading qualifier operator. It also doesn't
   1.181 +;; allow the ".*" construct of Java. So, we redo this regex without
   1.182 +;; the "\\|\\*" regex.
   1.183 +(c-lang-defconst c-identifier-key
   1.184 +  vala (concat "\\(" (c-lang-const c-symbol-key) "\\)" ; 1
   1.185 +	       (concat "\\("
   1.186 +		       "[ \t\n\r\f\v]*"
   1.187 +		       (c-lang-const c-opt-identifier-concat-key)
   1.188 +		       "[ \t\n\r\f\v]*"
   1.189 +		       (concat "\\("
   1.190 +			       "\\(" (c-lang-const c-symbol-key) "\\)"
   1.191 +			       "\\)")
   1.192 +		       "\\)*")))
   1.193 +
   1.194 +;; Vala has a few rules that are slightly different than Java for
   1.195 +;; operators. This also removed the Java's "super" and replaces it
   1.196 +;; with the Vala's "base".
   1.197 +(c-lang-defconst c-operators
   1.198 +  vala `((prefix "base")))
   1.199 +
   1.200 +;; Vala directives ?
   1.201 +;; (c-lang-defconst c-opt-cpp-prefix
   1.202 +;;   csharp "^\\s *#.*")
   1.203 +
   1.204 +
   1.205 +;; Vala uses the following assignment operators
   1.206 +(c-lang-defconst c-assignment-operators
   1.207 +  vala '("=" "*=" "/=" "%=" "+=" "-=" ">>=" "<<="
   1.208 +	 "&=" "^=" "|=" "++" "--"))
   1.209 +
   1.210 +;; This defines the primative types for Vala
   1.211 +(c-lang-defconst c-primitive-type-kwds
   1.212 +  vala '("void" "char" "int" "float" "double" "string"))
   1.213 +
   1.214 +;; The keywords that define that the following is a type, such as a
   1.215 +;; class definition.
   1.216 +(c-lang-defconst c-type-prefix-kwds
   1.217 +  vala '("class" "interface" "struct" "enum" "signal"))
   1.218 +
   1.219 +;; Type modifier keywords. They appear anywhere in types, but modifiy
   1.220 +;; instead create one.
   1.221 +(c-lang-defconst c-type-modifier-kwds
   1.222 +  vala '("const"))
   1.223 +
   1.224 +;; Structures that are similiar to classes.
   1.225 +(c-lang-defconst c-class-decl-kwds
   1.226 +  vala '("class" "interface"))
   1.227 +
   1.228 +;; The various modifiers used for class and method descriptions.
   1.229 +(c-lang-defconst c-modifier-kwds
   1.230 +  vala '("public" "partial" "private" "const" "abstract"
   1.231 +	 "protected" "ref" "in" "out" "static" "virtual"
   1.232 +	 "override" "params" "internal" "weak" "owned"
   1.233 +	 "unowned"))
   1.234 +
   1.235 +;; We don't use the protection level stuff because it breaks the
   1.236 +;; method indenting. Not sure why, though.
   1.237 +(c-lang-defconst c-protection-kwds
   1.238 +  vala nil)
   1.239 +
   1.240 +;; Define the keywords that can have something following after them.
   1.241 +(c-lang-defconst c-type-list-kwds
   1.242 +  vala '("struct" "class" "interface" "is" "as"
   1.243 +	 "delegate" "event" "set" "get" "add" "remove"
   1.244 +	 "callback" "signal" "var" "default"))
   1.245 +
   1.246 +;; This allows the classes after the : in the class declartion to be
   1.247 +;; fontified. 
   1.248 +(c-lang-defconst c-typeless-decl-kwds
   1.249 +  vala '(":"))
   1.250 +
   1.251 +;; Sets up the enum to handle the list properly
   1.252 +(c-lang-defconst c-brace-list-decl-kwds
   1.253 +  vala '("enum" "errordomain"))
   1.254 +
   1.255 +;; We need to remove Java's package keyword
   1.256 +(c-lang-defconst c-ref-list-kwds
   1.257 +  vala '("using" "namespace" "construct"))
   1.258 +
   1.259 +;; Follow-on blocks that don't require a brace
   1.260 +(c-lang-defconst c-block-stmt-2-kwds
   1.261 +  vala '("for" "if" "switch" "while" "catch" "foreach" "lock"))
   1.262 +
   1.263 +;; Statements that break out of braces
   1.264 +(c-lang-defconst c-simple-stmt-kwds
   1.265 +  vala '("return" "continue" "break" "throw"))
   1.266 +
   1.267 +;; Statements that allow a label
   1.268 +;; TODO?
   1.269 +(c-lang-defconst c-before-label-kwds
   1.270 +  vala nil)
   1.271 +
   1.272 +;; Constant keywords
   1.273 +(c-lang-defconst c-constant-kwds
   1.274 +  vala '("true" "false" "null"))
   1.275 +
   1.276 +;; Keywords that start "primary expressions."
   1.277 +(c-lang-defconst c-primary-expr-kwds
   1.278 +  vala '("this" "base"))
   1.279 +
   1.280 +;; We need to treat namespace as an outer block to class indenting
   1.281 +;; works properly.
   1.282 +(c-lang-defconst c-other-block-decl-kwds
   1.283 +  vala '("namespace"))
   1.284 +
   1.285 +;; We need to include the "in" for the foreach
   1.286 +(c-lang-defconst c-other-kwds
   1.287 +  vala '("in" "sizeof" "typeof"))
   1.288 +
   1.289 +(require 'cc-awk)
   1.290 +
   1.291 +(c-lang-defconst c-at-vsemi-p-fn
   1.292 +  vala 'c-awk-at-vsemi-p)
   1.293 +
   1.294 +
   1.295 +(defcustom vala-font-lock-extra-types nil
   1.296 +  "*List of extra types (aside from the type keywords) to recognize in Vala mode.
   1.297 +Each list item should be a regexp matching a single identifier.")
   1.298 +
   1.299 +(defconst vala-font-lock-keywords-1 (c-lang-const c-matchers-1 vala)
   1.300 +  "Minimal highlighting for Vala mode.")
   1.301 +
   1.302 +(defconst vala-font-lock-keywords-2 (c-lang-const c-matchers-2 vala)
   1.303 +  "Fast normal highlighting for Vala mode.")
   1.304 +
   1.305 +(defconst vala-font-lock-keywords-3 (c-lang-const c-matchers-3 vala)
   1.306 +  "Accurate normal highlighting for Vala mode.")
   1.307 +
   1.308 +(defvar vala-font-lock-keywords vala-font-lock-keywords-3
   1.309 +  "Default expressions to highlight in Vala mode.")
   1.310 +
   1.311 +(defvar vala-mode-syntax-table
   1.312 +  nil
   1.313 +  "Syntax table used in vala-mode buffers.")
   1.314 +(or vala-mode-syntax-table
   1.315 +    (setq vala-mode-syntax-table
   1.316 +	  (funcall (c-lang-const c-make-mode-syntax-table vala))))
   1.317 +
   1.318 +(defvar vala-mode-abbrev-table nil
   1.319 +  "Abbreviation table used in vala-mode buffers.")
   1.320 +(c-define-abbrev-table 'vala-mode-abbrev-table
   1.321 +  ;; Keywords that if they occur first on a line
   1.322 +  ;; might alter the syntactic context, and which
   1.323 +  ;; therefore should trig reindentation when
   1.324 +  ;; they are completed.
   1.325 +  '(("else" "else" c-electric-continued-statement 0)
   1.326 +    ("while" "while" c-electric-continued-statement 0)
   1.327 +    ("catch" "catch" c-electric-continued-statement 0)
   1.328 +    ("finally" "finally" c-electric-continued-statement 0)))
   1.329 +
   1.330 +(defvar vala-mode-map (let ((map (c-make-inherited-keymap)))
   1.331 +			;; Add bindings which are only useful for Vala
   1.332 +			map)
   1.333 +  "Keymap used in vala-mode buffers.")
   1.334 +
   1.335 +;;(easy-menu-define vala-menu vala-mode-map "Vala Mode Commands"
   1.336 +;;		  ;; Can use `vala' as the language for `c-mode-menu'
   1.337 +;;		  ;; since its definition covers any language.  In
   1.338 +;;		  ;; this case the language is used to adapt to the
   1.339 +;;		  ;; nonexistence of a cpp pass and thus removing some
   1.340 +;;		  ;; irrelevant menu alternatives.
   1.341 +;;		  (cons "Vala" (c-lang-const c-mode-menu vala)))
   1.342 +
   1.343 +;;; Autoload mode trigger
   1.344 +(add-to-list 'auto-mode-alist '("\\.vala$" . vala-mode))
   1.345 +(add-to-list 'auto-mode-alist '("\\.vapi$" . vala-mode))
   1.346 +
   1.347 +;; Custom variables
   1.348 +(defcustom vala-mode-hook nil
   1.349 +  "*Hook called by `vala-mode'."
   1.350 +  :type 'hook
   1.351 +  :group 'c)
   1.352 +
   1.353 +;;; The entry point into the mode
   1.354 +;;;###autoload
   1.355 +(defun vala-mode ()
   1.356 +  "Major mode for editing Vala code.
   1.357 +This is a simple example of a separate mode derived from CC Mode
   1.358 +to support a language with syntax similar to
   1.359 +C#/C/C++/ObjC/Java/IDL/Pike.
   1.360 +
   1.361 +The hook `c-mode-common-hook' is run with no args at mode
   1.362 +initialization, then `vala-mode-hook'.
   1.363 +
   1.364 +Key bindings:
   1.365 +\\{vala-mode-map}"
   1.366 +  (interactive)
   1.367 +  (kill-all-local-variables)
   1.368 +  (c-initialize-cc-mode t)
   1.369 +  (set-syntax-table vala-mode-syntax-table)
   1.370 +  (setq major-mode 'vala-mode
   1.371 +	mode-name "Vala"
   1.372 +	local-abbrev-table vala-mode-abbrev-table
   1.373 +	abbrev-mode t)
   1.374 +  (use-local-map c-mode-map)
   1.375 +  ;; `c-init-language-vars' is a macro that is expanded at compile
   1.376 +  ;; time to a large `setq' with all the language variables and their
   1.377 +  ;; customized values for our language.
   1.378 +  (c-init-language-vars vala-mode)
   1.379 +  ;; `c-common-init' initializes most of the components of a CC Mode
   1.380 +  ;; buffer, including setup of the mode menu, font-lock, etc.
   1.381 +  ;; There's also a lower level routine `c-basic-common-init' that
   1.382 +  ;; only makes the necessary initialization to get the syntactic
   1.383 +  ;; analysis and similar things working.
   1.384 +  (c-common-init 'vala-mode)
   1.385 +  ;;(easy-menu-add vala-menu)
   1.386 +  (c-set-style "linux")
   1.387 +  (setq indent-tabs-mode t)
   1.388 +  (setq c-basic-offset 4)
   1.389 +  (setq tab-width 4)
   1.390 +  (c-toggle-auto-newline -1)
   1.391 +  (c-toggle-hungry-state -1)
   1.392 +  (run-hooks 'c-mode-common-hook)
   1.393 +  (run-hooks 'vala-mode-hook)
   1.394 +  (c-update-modeline))
   1.395 +
   1.396 +(provide 'vala-mode)
   1.397 +
   1.398 +;;; vala-mode.el ends here