xemacs-beta: lisp/packages/font-lock.el comparison

comparison lisp/packages/font-lock.el @ 76:c0c698873ce1 r20-0b33

Import from CVS: tag r20-0b33

author	cvs
date	Mon, 13 Aug 2007 09:05:10 +0200
parents	131b0175ea99
children	821dec489c24

comparison

equal deleted inserted replaced

-:a4e0195b387b
+:c0c698873ce1
 ;;
 ;; The same is true of `c-font-lock-keywords-1' and `c-font-lock-keywords-2';
 ;; the former is subdued, the latter is loud.
 ;;
 ;; You can make font-lock default to the gaudier variety of keyword
-;; highlighting by setting the variable `font-lock-use-maximal-decoration'
+;; highlighting by setting the variable `font-lock-maximum-decoration'
 ;; before loading font-lock, or by calling the functions
 ;; `font-lock-use-default-maximal-decoration' or
 ;; `font-lock-use-default-minimal-decoration'.
 ;;
 ;; On a Sparc10, the initial fontification takes about 6 seconds for a typical
 ;;   Don't use it to, say, highlight keywords in commented out code or strings.
 ;; - Err, that's it.
 ;;; Code:
+(require 'fontl-hooks)
 ;;;;;;;;;;;;;;;;;;;;;;      user variables       ;;;;;;;;;;;;;;;;;;;;;;
 (defvar font-lock-verbose t
 "*If non-nil, means show status messages when fontifying.
 	c++-font-lock-keywords-3)
 nil nil ((?_ . "w") (?~ . "w")) beginning-of-defun))
 (put 'java-mode 'font-lock-defaults
 '((java-font-lock-keywords
-	java-font-lock-keywords-1 java-font-lock-keywords-2)
+	java-font-lock-keywords-1 java-font-lock-keywords-2
-nil nil ((?_ . "w")) beginning-of-defun))
+	java-font-lock-keywords-3)
+nil nil ((?_ . "w")) beginning-of-defun
+(font-lock-mark-block-function . mark-defun)))
 (put 'lisp-mode 'font-lock-defaults
 '((lisp-font-lock-keywords
 	lisp-font-lock-keywords-1 lisp-font-lock-keywords-2)
 nil nil
 ;  )
 ;
 ;(defconst c++-font-lock-keywords c++-font-lock-keywords-1
 ;  "Additional expressions to highlight in C++ mode.")
+;; Java support from Anders Lindgren and Bob Weiner
 (defconst java-font-lock-keywords-1 nil
 "For consideration as a value of `java-font-lock-keywords'.
 This does fairly subdued highlighting.")
 (defconst java-font-lock-keywords-2 nil
 "For consideration as a value of `java-font-lock-keywords'.
-This does a lot more highlighting.")
+This adds highlighting of types and identifier names.")
-(let ((storage (concat "static\\|abstract\\|const\\|final\\|"
+(defconst java-font-lock-keywords-3 nil
-		       "synchronized\\|threadsafe\\|transient\\|native"))
+"For consideration as a value of `java-font-lock-keywords'.
-(types (concat
+This adds highlighting of Java documentation tags, such as @see.")
-	      "boolean\\|int\\|char\\|byte\\|short\\|long\\|"
-	      "float\\|double\\|void"))
+(defvar java-font-lock-type-regexp
-(reserved-words
+(concat "\\<\\(boolean\\|byte\\|char\\|double\\|float\\|int"
-'("private" "protected" "public" "break" "byvalue"
+"\\|long\\|short\\|void\\)\\>")
-	 "case" "catch" "class"
+"Regexp which should match a primitive type.")
-	 "continue" "default" "do" "else if"
-	 "else" "extends" "false" "finally"
+(let ((capital-letter "A-Z\300-\326\330-\337")
-	 "for" "if" "implements" "import"
+(letter "a-zA-Z_$\300-\326\330-\366\370-\377")
-	 "instanceof" "interface"
+(digit  "0-9"))
-	 "new" "null" "package" "return"
+(defvar java-font-lock-identifier-regexp
-	 "super" "switch"
+(concat "\\<\\([" letter "][" letter digit "]*\\)\\>")
-	 "this" "throw" "throws"
+"Regexp which should match all Java identifiers.")
-	 "true" "try" "synchronize" "while"))
+(defvar java-font-lock-class-name-regexp
-;      (java-token "\\w+")
+(concat "\\<\\([" capital-letter "][" letter digit "]*\\)\\>")
-(java-token "[a-zA-Z0-9_\.]+")
+"Regexp which should match a class or an interface name.
-(java-modifying-token "[a-zA-Z0-9_\.]+\\([ \t]*\\[\\]\\)?")
+The name is assumed to begin with a capital letter.")
 )
+(let ((java-modifier-regexp
+(concat "\\<\\(abstract\\|const\\|final\\|native\\|"
+	       "private\\|protected\\|public\\|"
+	       "static\\|synchronized\\|transient\\|volatile\\)\\>")))
+;; Basic font-lock support:
 (setq java-font-lock-keywords-1
-(list
+	(list
-;;------------------------------------------------------------------
+	 ;; Keywords:
-;; fontify C++-style comments as comments.
+	 (list
-;;------------------------------------------------------------------
+	  (concat
+	   "\\<\\("
-'("//.*" . font-lock-comment-face)
+	   "break\\|byvalue\\|"
+	   "case\\|cast\\|catch\\|class\\|continue\\|"
-;;------------------------------------------------------------------
+	   "do\\|else\\|extends\\|"
-;; I think static deserves special attention
+	   "finally\\|for\\|future\\|"
-;;------------------------------------------------------------------
+	   "generic\\|goto\\|"
+	   "if\\|implements\\|import\\|"
-'("static" . font-lock-keyword-face)
+	   "instanceof\\|interface\\|"
+	   "new\\|package\\|return\\|switch\\|"
-;;------------------------------------------------------------------
+	   "throws?\\|try\\|while\\)\\>")
-;; Make the "public" keyword standout (should we do private instead?)
+	  1 'font-lock-keyword-face)
-;;------------------------------------------------------------------
+	 ;; Modifiers:
-;; these depend on some personal SMF faces
+	 (list java-modifier-regexp 1 font-lock-type-face)
-;; I wish I knew elisp, etc enough to know if it's
+	 ;; Special constants:
-;; faster to use 1 regex for n words, or n
+	 '("\\<\\(this\\|super\\)\\>" (1 font-lock-reference-face))
-;; unglobbed entries in this list...
+	 '("\\<\\(false\\|null\\|true\\)\\>" (1 font-lock-keyword-face))
-;; '("private" . font-lock-pale-face)
+	 ;; Class names:
-;; '("protected" . font-lock-pale-face)
+	 (list (concat "\\<class\\>\\s *" java-font-lock-identifier-regexp)
+	       1 'font-lock-function-name-face)
-;;------------------------------------------------------------------
-;; special case so "new Foo();" doesn't map to method declaration
+	 ;; Package declarations:
-;;------------------------------------------------------------------
+	 (list (concat "\\<\\(package\\|import\\)\\>\\s *"
+		       java-font-lock-identifier-regexp)
-(list (concat
+	       '(2 font-lock-reference-face)
-	   "^.*[ \t]+\\(new\\|return\\)[ \t]+"
+	       (list (concat
-	   "\\(" java-token "\\)")
+		      "\\=\\.\\(" java-font-lock-identifier-regexp "\\)")
-	  2 'default)
+		     nil nil '(1 (if (= (char-after (match-end 0)) ?.)
+				     'font-lock-reference-face
-;;------------------------------------------------------------------
+				   'font-lock-type-face))))
-;; special case so "else if();" doesn't map to method declaration
-;;------------------------------------------------------------------
+	 ;; Constructors:
+	 (list (concat
-(list "^.*[ \t]+else[ \t]+\\(if\\)"
+		"^\\s *\\(" java-modifier-regexp "\\s +\\)*"
-	  1 'default)
+		java-font-lock-class-name-regexp "\\s *\(")
+	       (list 3
-;;------------------------------------------------------------------
+		     '(condition-case nil
-;; METHOD IDENTIFICATION
+			  (save-excursion
-;;
+			    (goto-char (scan-sexps (- (match-end 0) 1) 1))
-;; fontify the (first word of) names of methods being defined.
+			    (parse-partial-sexp (point) (point-max) nil t)
-;;------------------------------------------------------------------
+			    (and (looking-at "\\($\\|\\<throws\\>\\|{\\)")
+				 'font-lock-function-name-face))
-(list (concat
+			(error 'font-lock-function-name-face))))
-	   "^[ \t]+"			;; indent of line
+	 ;; Methods:
-	   ;;-------------------------------------------------------
+	 (list (concat "\\(" java-font-lock-type-regexp "\\|"
-	   ;; Demanding a token 1st doesn't recognize constructors
+		       java-font-lock-class-name-regexp "\\)"
-	   ;; w/out any access specifiers.  Unfortunately, that also
+		       "\\s *\\(\\[\\s *\\]\\s *\\)*"
-	   ;; looks like many other things, including "if (foo) {",
+		       java-font-lock-identifier-regexp "\\s *\(")
-	   ;; so it's not an easy case to detect -- I'm just going
+	       5
-	   ;; to live w/out it for now...
+	       'font-lock-function-name-face)
-	   ;;-------------------------------------------------------
+	 ;; Labels:
-	   "\\(" java-modifying-token "[ \t]+\\)"
+	 (list ":"
+	       (list
-;	   "\\("
+		(concat "^\\s *" java-font-lock-identifier-regexp "\\s *:")
-;	   "\\(^[ \t]+\\(" java-token "[ \t]+\\)\\)"
+		'(beginning-of-line) '(end-of-line)
-;	   "\\|"
+		'(1 font-lock-reference-face)))
-;	   "\\(    \\)"
-;	   "\\)"
+	 ;; `break' and continue' destination labels:
-; failed attempt to hack in ^ followed by exactly 4 spaces allowance to
+	 (list (concat "\\<\\(break\\|continue\\)\\>\\s *"
-; recognize constructions with no access specified
+		       java-font-lock-identifier-regexp)
+	       2 'font-lock-reference-face)
-	   "\\(" java-modifying-token "[ \t]+\\)?"
-	   "\\(" java-modifying-token "[ \t]+\\)?"
+	 ;; Case statements:
-	   "\\(" java-modifying-token "[ \t]+\\)?"
+	 ;; In Java, any constant expression is allowed.
-	   "\\(" java-modifying-token "[ \t]+\\)?"
+	 '("\\<case\\>\\s *\\(.*\\):" 1 font-lock-reference-face)))
-	   "\\(" java-modifying-token "[ \t]+\\)?"
-	   "\\(" java-token "\\)[ \t]*(")
+;; Types and declared variable names:
-	 ;  "\\(" java-token "\\)[ \t]*(.*{")
-	  ;; SMF: while demanding { at EOL is stylistic,
-	  ;; it DOESN'T hilite the likes of:
-	  ;; return new Dimension()
-	  ;;	   "\\(" java-token "\\)[ \t]*(")
-	  ;; PROBLEM -- it leaves out abstract and native methods!
-	  13 'font-lock-function-name-face)
-;;------------------------------------------------------------------
-;; Fontify class names ...
-;; (info-node is another personal SMF face)
-;;------------------------------------------------------------------
-(list (concat
-	   "^[ \t]*\\([a-z]+[ \t]+\\)?\\([a-z]+[ \t]+\\)?class[ \t]+\\("
-	   java-token "\\)")
-	  3 'font-lock-reference-face)
-;;------------------------------------------------------------------
-;; Package names
-;;------------------------------------------------------------------
-(list (concat
-	   "package[ \t]+\\(" java-token "\\)")
-	  1 'font-lock-reference-face)
-;;
-;; Fontify case clauses.  This is fast because its anchored on the left.
-'("case[ \t]+\\(\\(\\sw\\|\\s_\\)+\\):". 1)
-'("\\<\\(default\\):". 1)
-))
 (setq java-font-lock-keywords-2
-(append java-font-lock-keywords-1
+	(append
-(list
-;;
+	 java-font-lock-keywords-1
-;; fontify all storage classes and type specifiers
+	 (list
-(cons (concat "\\<\\(" storage "\\)\\>") 'font-lock-type-face)
+	  ;; Keywords followed by a type:
-(cons (concat "\\<\\(" types "\\)\\>") 'font-lock-type-face)
+	  (list (concat "\\<\\(extends\\|instanceof\\|new\\)\\>\\s *"
+			java-font-lock-identifier-regexp)
-;;
+		'(2 (if (= (char-after (match-end 0)) ?.)
-;; fontify all builtin tokens
+			'font-lock-reference-face 'font-lock-type-face))
-	    (cons (concat
+		(list (concat "\\=\\." java-font-lock-identifier-regexp)
-		   "[ \t]\\("
+		      '(goto-char (match-end 0)) nil
-		   (mapconcat 'identity reserved-words "\\|")
+		      '(1 (if (= (char-after (match-end 0)) ?.)
-		   "\\)[ \t\n(){};,]")
+			      'font-lock-reference-face 'font-lock-type-face))))
-		  1)
-	    (cons (concat
+	  ;; Keywords followed by a type list:
-		   "^\\("
+	  (list (concat "\\<\\(implements\\|throws\\)\\>\\ s*"
-		   (mapconcat 'identity reserved-words "\\|")
+			java-font-lock-identifier-regexp)
-		   "\\)[ \t\n(){};,]")
+		'(2 (if (= (char-after (match-end 0)) ?.)
-		  1)
+			font-lock-reference-face font-lock-type-face))
-	    )))
+		(list (concat "\\=\\(\\.\\|\\s *\\(,\\)\\s *\\)"
+			      java-font-lock-identifier-regexp)
+		      '(goto-char (match-end 0)) nil
+		      '(3 (if (= (char-after (match-end 0)) ?.)
+			      font-lock-reference-face font-lock-type-face))))
+	  ;; primitive types, can't be confused with anything else.
+	  (list java-font-lock-type-regexp
+		'(1 font-lock-type-face)
+		'(font-lock-match-java-declarations
+		  (goto-char (match-end 0))
+		  (goto-char (match-end 0))
+		  (0 font-lock-variable-name-face)))
+	  ;; Declarations, class types and capitalized variables:
+	  ;;
+	  ;; Declarations are easy to recognize.  Capitalized words
+	  ;; followed by a closing parenthesis are treated as casts if they
+	  ;; also are followed by an expression.  Expressions beginning with
+	  ;; a unary numerical operator, e.g. +, can't be cast to an object
+	  ;; type.
+	  ;;
+	  ;; The path of a fully qualified type, e.g. java.lang.Foo, is
+	  ;; fontified in the reference face.
+	  ;;
+	  ;; An access to a static field, e.g. System.out.println, is
+	  ;; not fontified since it can't be distinguished from the
+	  ;; usage of a capitalized variable, e.g. Foo.out.println.
+	  (list (concat java-font-lock-class-name-regexp
+			"\\s *\\(\\[\\s *\\]\\s *\\)*"
+			"\\(\\<\\|$\\|)\\s *\\([\(\"]\\|\\<\\)\\)")
+		'(1 (save-match-data
+		      (save-excursion
+			(goto-char
+			 (match-beginning 3))
+			(if (not (looking-at "\\<instanceof\\>"))
+			    'font-lock-type-face))))
+		(list (concat "\\=" java-font-lock-identifier-regexp "\\.")
+		      '(progn
+			 (goto-char (match-beginning 0))
+			 (while (or (= (preceding-char) ?.)
+				    (= (char-syntax (preceding-char)) ?w))
+			   (backward-char)))
+		      '(goto-char (match-end 0))
+		      '(1 font-lock-reference-face)
+		      '(0 nil))		; Workaround for bug in XEmacs.
+		'(font-lock-match-java-declarations
+		  (goto-char (match-end 1))
+		  (goto-char (match-end 0))
+		  (1 font-lock-variable-name-face))))))
+;; Modifier keywords and Java doc tags
+(setq java-font-lock-keywords-3
+	(append
+	 '(
+	   ;; Feature scoping:
+	   ;; These must come first or the Modifiers from keywords-1 will
+	   ;; catch them.  We don't want to use override fontification here
+	   ;; because then these terms will be fontified within comments.
+	   ("\\<private\\>"   0 font-lock-string-face)
+	   ("\\<protected\\>" 0 font-lock-preprocessor-face)
+	   ("\\<public\\>"    0 font-lock-reference-face))
+	 java-font-lock-keywords-2
+	 (list
+	  ;; Java doc tags
+	  '("@\\(author\\|exception\\|param\\|return\\|see\\|version\\)\\s "
+	    0 font-lock-keyword-face t)
+	  ;; Doc tag - Parameter identifiers
+	  (list (concat "@param\\s +" java-font-lock-identifier-regexp)
+		1 'font-lock-variable-name-face t)
+	  ;; Doc tag - Exception types
+	  (list (concat "@exception\\ s*"
+			java-font-lock-identifier-regexp)
+		'(1 (if (= (char-after (match-end 0)) ?.)
+			font-lock-reference-face font-lock-type-face) t)
+		(list (concat "\\=\\." java-font-lock-identifier-regexp)
+		      '(goto-char (match-end 0)) nil
+		      '(1 (if (= (char-after (match-end 0)) ?.)
+			      'font-lock-reference-face 'font-lock-type-face) t)))
+	  ;; Doc tag - Cross-references, usually to methods
+	  '("@see\\s +\\(\\S *[^][ \t\n\r\f(){},.;:]\\)"
+	    1 font-lock-function-name-face t)
+	  )))
 )
 (defvar java-font-lock-keywords java-font-lock-keywords-1
 "Additional expressions to highlight in Java mode.")
+;; Match and move over any declaration/definition item after
+;; point.  Does not match items which look like a type declaration
+;; (primitive types and class names, i.e. capitalized words.)
+;; Should the variable name be followed by a comma, we reposition
+;; the cursor to fontify more identifiers.
+(defun font-lock-match-java-declarations (limit)
+"Match and skip over variable definitions."
+(if (looking-at "\\s *\\(\\[\\s *\\]\\s *\\)*")
+(goto-char (match-end 0)))
+(and
+(looking-at java-font-lock-identifier-regexp)
+(save-match-data
+(not (string-match java-font-lock-type-regexp
+			(buffer-substring (match-beginning 1)
+					  (match-end 1)))))
+(save-match-data
+(save-excursion
+(goto-char (match-beginning 1))
+(not (looking-at
+	     (concat java-font-lock-class-name-regexp
+		     "\\s *\\(\\[\\s *\\]\\s *\\)*\\<")))))
+(save-match-data
+(condition-case nil
+	 (save-restriction
+	   (narrow-to-region (point-min) limit)
+	   (goto-char (match-end 0))
+	   ;; Note: Both `scan-sexps' and the second goto-char can
+	   ;; generate an error which is caught by the
+	   ;; `condition-case' expression.
+	   (while (not (looking-at "\\s *\\(\\(,\\)\\|;\\|$\\)"))
+	     (goto-char (or (scan-sexps (point) 1) (point-max))))
+	   (goto-char (match-end 2)))   ; non-nil
+(error t)))))
 (defvar tex-font-lock-keywords
 ;  ;; Regexps updated with help from Ulrik Dickow <dickow@nbi.dk>.
 ;  '(("\\\\\\(begin\\|end\\|newcommand\\){\\([a-zA-Z0-9\\*]+\\)}"
 ;     2 font-lock-function-name-face)

Mercurial > hg > xemacs-beta

comparison lisp/packages/font-lock.el @ 76:c0c698873ce1 r20-0b33