1 ;;; fuel-font-lock.el -- font lock for factor code
3 ;; Copyright (C) 2008, 2009 Jose Antonio Ortega Ruiz
4 ;; See http://factorcode.org/license.txt for BSD license.
6 ;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
7 ;; Keywords: languages, fuel, factor
8 ;; Start date: Wed Dec 03, 2008 21:40
12 ;; Font lock setup for highlighting Factor code.
16 (require 'fuel-syntax)
24 (defgroup fuel-faces nil
29 (defmacro fuel-font-lock--defface (face def group doc)
30 `(defface ,face (face-default-spec ,def)
31 ,(format "Face for %s." doc)
36 (put 'fuel-font-lock--defface 'lisp-indent-function 1)
38 (defmacro fuel-font-lock--make-face (prefix def-prefix group face def doc)
39 (let ((face (intern (format "%s-%s" prefix face)))
40 (def (intern (format "%s-%s-face" def-prefix def))))
41 `(fuel-font-lock--defface ,face ,def ,group ,doc)))
43 (defmacro fuel-font-lock--define-faces (prefix def-prefix group faces)
44 (let ((setup (make-symbol (format "%s--faces-setup" prefix))))
48 (mapcar (lambda (f) (append '(fuel-font-lock--make-face
49 ,prefix ,def-prefix ,group) f))
53 (fuel-font-lock--define-faces
54 factor-font-lock font-lock factor-mode
55 ((comment comment "comments")
56 (constructor type "constructors (<foo>)")
57 (constant constant "constants and literal values")
58 (number constant "integers and floats")
59 (ratio constant "ratios")
60 (declaration keyword "declaration words")
61 (ebnf-form constant "EBNF: ... ;EBNF form")
62 (error-form warning "ERROR: ... ; form")
63 (parsing-word keyword "parsing words")
64 (postpone-body comment "postponed form")
65 (setter-word function-name "setter words (>>foo)")
66 (getter-word function-name "getter words (foo>>)")
67 (stack-effect comment "stack effect specifications")
68 (string string "strings")
69 (symbol variable-name "name of symbol being defined")
70 (type-name type "type names")
71 (vocabulary-name constant "vocabulary names")
72 (word function-name "word, generic or method being defined")
73 (invalid-syntax warning "syntactically invalid constructs")))
78 (defun fuel-font-lock--syntactic-face (state)
79 (if (nth 3 state) 'factor-font-lock-string
80 (let ((c (char-after (nth 8 state))))
81 (cond ((memq c '(?\ ?\n ?E ?P))
83 (goto-char (nth 8 state))
85 (cond ((looking-at "E") 'factor-font-lock-ebnf-form)
86 ((looking-at "P") 'factor-font-lock-postpone-body)
87 ((looking-at-p "USING: ")
88 'factor-font-lock-vocabulary-name)
90 "\\(TUPLE\\|SYMBOLS\\|VARS\\|SINGLETONS\\):")
91 'factor-font-lock-symbol)
92 ((looking-at-p "C-ENUM:\\( \\|\n\\)")
93 'factor-font-lock-constant)
95 ((or (char-equal c ?U) (char-equal c ?C))
96 'factor-font-lock-parsing-word)
97 ((char-equal c ?\") 'factor-font-lock-string)
98 (t 'factor-font-lock-comment)))))
100 (defconst fuel-font-lock--font-lock-keywords
101 `((,fuel-syntax--stack-effect-regex . 'factor-font-lock-stack-effect)
102 (,fuel-syntax--brace-words-regex 1 'factor-font-lock-parsing-word)
103 (,fuel-syntax--alien-function-regex (1 'factor-font-lock-type-name)
104 (2 'factor-font-lock-word))
105 (,fuel-syntax--alien-function-alias-regex (1 'factor-font-lock-word)
106 (2 'factor-font-lock-type-name)
107 (3 'factor-font-lock-word))
108 (,fuel-syntax--alien-callback-regex (1 'factor-font-lock-type-name)
109 (2 'factor-font-lock-word))
110 (,fuel-syntax--vocab-ref-regexp 2 'factor-font-lock-vocabulary-name)
111 (,fuel-syntax--constructor-decl-regex
112 (1 'factor-font-lock-word)
113 (2 'factor-font-lock-type-name)
114 (3 'factor-font-lock-invalid-syntax nil t))
115 (,fuel-syntax--typedef-regex (1 'factor-font-lock-type-name)
116 (2 'factor-font-lock-type-name)
117 (3 'factor-font-lock-invalid-syntax nil t))
118 (,fuel-syntax--c-global-regex (1 'factor-font-lock-type-name)
119 (2 'factor-font-lock-word)
120 (3 'factor-font-lock-invalid-syntax nil t))
121 (,fuel-syntax--c-type-regex (1 'factor-font-lock-type-name)
122 (2 'factor-font-lock-invalid-syntax nil t))
123 (,fuel-syntax--rename-regex (1 'factor-font-lock-word)
124 (2 'factor-font-lock-vocabulary-name)
125 (3 'factor-font-lock-word)
126 (4 'factor-font-lock-invalid-syntax nil t))
127 (,fuel-syntax--declaration-words-regex . 'factor-font-lock-declaration)
128 (,fuel-syntax--word-definition-regex 2 'factor-font-lock-word)
129 (,fuel-syntax--alias-definition-regex (1 'factor-font-lock-word)
130 (2 'factor-font-lock-word))
131 (,fuel-syntax--int-constant-def-regex 2 'factor-font-lock-constant)
132 (,fuel-syntax--integer-regex . 'factor-font-lock-number)
133 (,fuel-syntax--float-regex . 'factor-font-lock-number)
134 (,fuel-syntax--ratio-regex . 'factor-font-lock-ratio)
135 (,fuel-syntax--type-definition-regex 2 'factor-font-lock-type-name)
136 (,fuel-syntax--error-regex 2 'factor-font-lock-error-form)
137 (,fuel-syntax--method-definition-regex (1 'factor-font-lock-type-name)
138 (2 'factor-font-lock-word))
139 (,fuel-syntax--before-definition-regex (1 'factor-font-lock-type-name)
140 (2 'factor-font-lock-word))
141 (,fuel-syntax--after-definition-regex (1 'factor-font-lock-type-name)
142 (2 'factor-font-lock-word))
143 (,fuel-syntax--tuple-decl-regex 2 'factor-font-lock-type-name)
144 (,fuel-syntax--constructor-regex . 'factor-font-lock-constructor)
145 (,fuel-syntax--setter-regex . 'factor-font-lock-setter-word)
146 (,fuel-syntax--getter-regex . 'factor-font-lock-getter-word)
147 (,fuel-syntax--symbol-definition-regex 2 'factor-font-lock-symbol)
148 (,fuel-syntax--bad-string-regex . 'factor-font-lock-invalid-syntax)
149 ("\\_<\\(P\\|SBUF\\|DLL\\)\"" 1 'factor-font-lock-parsing-word)
150 (,fuel-syntax--parsing-words-regex . 'factor-font-lock-parsing-word)))
152 (defun fuel-font-lock--font-lock-setup (&optional keywords no-syntax)
153 (set (make-local-variable 'comment-start) "! ")
154 (set (make-local-variable 'parse-sexp-lookup-properties) t)
155 (set (make-local-variable 'font-lock-defaults)
156 `(,(or keywords 'fuel-font-lock--font-lock-keywords)
159 (list (cons 'font-lock-syntactic-keywords
160 fuel-syntax--syntactic-keywords)
161 (cons 'font-lock-syntactic-face-function
162 'fuel-font-lock--syntactic-face))))))
165 ;;; Fontify strings as Factor code:
167 (defun fuel-font-lock--font-lock-buffer ()
168 (let ((name " *fuel font lock*"))
169 (or (get-buffer name)
170 (let ((buffer (get-buffer-create name)))
172 (set-syntax-table fuel-syntax--syntax-table)
173 (fuel-font-lock--font-lock-setup)
176 (defun fuel-font-lock--factor-str (str)
178 (set-buffer (fuel-font-lock--font-lock-buffer))
181 (let ((font-lock-verbose nil)) (font-lock-fontify-buffer))
185 (provide 'fuel-font-lock)
186 ;;; fuel-font-lock.el ends here