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1 | ;; Common Lisp bindings for GTK+ v2.0 |
2 | ;; Copyright (C) 1999-2000 Espen S. Johnsen <espejohn@online.no> |
3 | ;; |
4 | ;; This library is free software; you can redistribute it and/or |
5 | ;; modify it under the terms of the GNU Lesser General Public |
6 | ;; License as published by the Free Software Foundation; either |
7 | ;; version 2 of the License, or (at your option) any later version. |
8 | ;; |
9 | ;; This library is distributed in the hope that it will be useful, |
10 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | ;; Lesser General Public License for more details. |
13 | ;; |
14 | ;; You should have received a copy of the GNU Lesser General Public |
15 | ;; License along with this library; if not, write to the Free Software |
16 | ;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
17 | |
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18 | ;; $Id: gutils.lisp,v 1.10 2001-11-12 22:26:56 espen Exp $ |
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19 | |
20 | |
21 | (in-package "KERNEL") |
22 | |
23 | (defun type-expand-1 (form) |
24 | (let ((def (cond ((symbolp form) |
25 | (info type expander form)) |
26 | ((and (consp form) (symbolp (car form))) |
27 | (info type expander (car form))) |
28 | (t nil)))) |
29 | (if def |
30 | (values (funcall def (if (consp form) form (list form))) t) |
31 | (values form nil)))) |
32 | |
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33 | |
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34 | (in-package "GLIB") |
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35 | |
36 | (defun type-expand-to (type form) |
37 | (labels ((expand (form0) |
38 | (if (eq (first (mklist form0)) type) |
39 | form0 |
40 | (multiple-value-bind (expanded-form expanded-p) |
41 | (type-expand-1 form0) |
42 | (if expanded-p |
43 | (expand expanded-form) |
44 | (error "~A can not be expanded to ~A" form type)))))) |
45 | (expand form))) |
46 | |
47 | (defmacro with-gc-disabled (&body body) |
48 | (let ((gc-inhibit (make-symbol "GC-INHIBIT"))) |
49 | `(progn |
50 | (let ((,gc-inhibit lisp::*gc-inhibit*)) |
51 | (ext:gc-off) |
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52 | (unwind-protect |
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53 | ,@body |
54 | (unless ,gc-inhibit |
55 | (ext:gc-on))))))) |
56 | |
57 | (defun mklist (obj) |
58 | (if (atom obj) (list obj) obj)) |
59 | |
60 | (defun namep (obj) |
61 | (and (symbolp obj) (not (member obj '(t nil))))) |
62 | |
63 | (defun all-equal (&rest objects) |
64 | (or |
65 | (null objects) |
66 | (null (rest objects)) |
67 | (and |
68 | (equal (first objects) (second objects)) |
69 | (apply #'all-equal (rest objects))))) |
70 | |
71 | (defun neq (obj1 obj2) |
72 | (not (eq obj1 obj2))) |
73 | |
74 | (defmacro return-if (form) |
75 | (let ((result (make-symbol "RESULT"))) |
76 | `(let ((,result ,form)) |
77 | (when ,result |
78 | (return ,result))))) |
79 | |
80 | (defun make-pointer (address) |
81 | (int-sap address)) |
82 | |
83 | (defun null-pointer-p (pointer) |
84 | (zerop (sap-int pointer))) |
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85 | |
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86 | |
87 | (defmacro when-bind ((var expr) &body body) |
88 | `(let ((,var ,expr)) |
89 | (when ,var |
90 | ,@body))) |
91 | |
92 | |
93 | (defmacro assoc-ref (key alist &key (test #'eq)) |
94 | `(cdr (assoc ,key ,alist :test ,test))) |
95 | |
96 | |
97 | (defmacro assoc-lref (key alist &key (test #'eq)) |
98 | `(cadr (assoc ,key ,alist :test ,test))) |
99 | |
100 | |
101 | (defun assoc-rem (key alist &key (test #'eq)) |
102 | (remove-if #'(lambda (element) (funcall test key (car element))) alist)) |
103 | |
104 | |
105 | (defun assoc-delete (key alist &key (test #'eq)) |
106 | (delete-if #'(lambda (element) (funcall test key (car element))) alist)) |
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107 | |
108 | |
109 | (defun funcallable (object) |
110 | (if (consp object) |
111 | (fdefinition object) |
112 | object)) |
113 | |
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114 | (defun intersection-p (list1 list2 &key (test #'eq)) |
115 | (dolist (obj list1 nil) |
116 | (when (member obj list2 :test test) |
117 | (return-from intersection-p t)))) |
118 | |
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119 | |
120 | (defun split-string (string delimiter) |
121 | (declare (simple-string string) (character delimiter)) |
122 | (check-type string string) |
123 | (check-type delimiter character) |
124 | (let ((pos (position delimiter string))) |
125 | (if (not pos) |
126 | (list string) |
127 | (cons |
128 | (subseq string 0 pos) |
129 | (split-string (subseq string (1+ pos)) delimiter))))) |
130 | |
131 | (defun split-string-if (string predicate) |
132 | (declare (simple-string string)) |
133 | (check-type string string) |
134 | (check-type predicate (or symbol function)) |
135 | (let ((pos (position-if predicate string :start 1))) |
136 | (if (not pos) |
137 | (list string) |
138 | (cons |
139 | (subseq string 0 pos) |
140 | (split-string-if (subseq string pos) predicate))))) |
141 | |
142 | (defun concatenate-strings (strings &optional delimiter) |
143 | (if (not (rest strings)) |
144 | (first strings) |
145 | (concatenate |
146 | 'string |
147 | (first strings) |
148 | (if delimiter (string delimiter) "") |
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149 | (concatenate-strings (rest strings) delimiter)))) |
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150 | |
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151 | (defun string-prefix-p (prefix string) |
152 | (and |
153 | (>= (length string) (length prefix)) |
154 | (string= prefix string :end2 (length prefix)))) |
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155 | |
156 | (defun get-all (plist property) |
157 | (multiple-value-bind (property value tail) |
158 | (get-properties plist (list property)) |
159 | (when tail |
160 | (cons value (get-all (cddr tail) property))))) |
161 | |
162 | (defun plist-remove (plist property) |
163 | (when plist |
164 | (if (eq (first plist) property) |
165 | (plist-remove (cddr plist) property) |
166 | (list* |
167 | (first plist) (second plist) (plist-remove (cddr plist) property))))) |
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168 | |
169 | |
170 | ;;; |
171 | |
172 | (defun utf-8-encode (code) |
173 | (labels ((encode-bytes (bit) |
174 | (unless (zerop bit) |
175 | (cons |
176 | (deposit-field |
177 | #x80 (byte 7 6) (ldb (byte bit (- bit 6)) code)) |
178 | (encode-bytes (- bit 6))))) |
179 | (encode-string (length) |
180 | (map 'string #'code-char |
181 | (cons |
182 | (deposit-field |
183 | (mask-field (byte 7 (- 7 length)) #xFF) |
184 | (byte 7 (- 6 length)) |
185 | (ldb (byte (+ (* length 6) 6) (* length 6)) code)) |
186 | (encode-bytes (* length 6)))))) |
187 | (cond |
188 | ((< code #x80) (string (code-char code))) |
189 | ((< code #x800) (encode-string 1)) |
190 | ((< code #x10000) (encode-string 2)) |
191 | ((< code #x200000) (encode-string 3)) |
192 | ((< code #x4000000) (encode-string 4)) |
193 | ((< code #x80000000) (encode-string 5)) |
194 | (t (error "Invalid char code ~A" code))))) |
195 | |
196 | |
197 | (defun latin1-to-unicode (string) |
198 | (reduce |
199 | #'(lambda (str1 str2) |
200 | (concatenate 'string str1 str2)) |
201 | (map 'list #'(lambda (char) (utf-8-encode (char-code char))) string))) |