| 1 | ;; Common Lisp bindings for GTK+ v2.x |
| 2 | ;; Copyright 1999-2005 Espen S. Johnsen <espen@users.sf.net> |
| 3 | ;; |
| 4 | ;; Permission is hereby granted, free of charge, to any person obtaining |
| 5 | ;; a copy of this software and associated documentation files (the |
| 6 | ;; "Software"), to deal in the Software without restriction, including |
| 7 | ;; without limitation the rights to use, copy, modify, merge, publish, |
| 8 | ;; distribute, sublicense, and/or sell copies of the Software, and to |
| 9 | ;; permit persons to whom the Software is furnished to do so, subject to |
| 10 | ;; the following conditions: |
| 11 | ;; |
| 12 | ;; The above copyright notice and this permission notice shall be |
| 13 | ;; included in all copies or substantial portions of the Software. |
| 14 | ;; |
| 15 | ;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 | ;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 | ;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 18 | ;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 19 | ;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 20 | ;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 21 | ;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | |
| 23 | ;; $Id: utils.lisp,v 1.5 2005-04-23 16:48:51 espen Exp $ |
| 24 | |
| 25 | |
| 26 | (in-package "GLIB") |
| 27 | |
| 28 | (defun type-expand-1 (form) |
| 29 | (let ((def (cond ((symbolp form) |
| 30 | #+cmu(kernel::info type expander form) |
| 31 | #+sbcl(sb-impl::info :type :expander form)) |
| 32 | ((and (consp form) (symbolp (car form))) |
| 33 | #+cmu(kernel::info type expander (car form)) |
| 34 | #+sbcl(sb-impl::info :type :expander (car form))) |
| 35 | (t nil)))) |
| 36 | (if def |
| 37 | (values (funcall def (if (consp form) form (list form))) t) |
| 38 | (values form nil)))) |
| 39 | |
| 40 | |
| 41 | (defun type-expand-to (type form) |
| 42 | (labels ((expand (form0) |
| 43 | (if (eq (first (mklist form0)) type) |
| 44 | form0 |
| 45 | (multiple-value-bind (expanded-form expanded-p) |
| 46 | (type-expand-1 form0) |
| 47 | (if expanded-p |
| 48 | (expand expanded-form) |
| 49 | (error "~A can not be expanded to ~A" form type)))))) |
| 50 | (expand form))) |
| 51 | |
| 52 | (defmacro with-gc-disabled (&body body) |
| 53 | #+cmu`(system:without-gcing ,@body) |
| 54 | #+sbcl`(sb-impl::without-gcing ,@body)) |
| 55 | |
| 56 | (defun mklist (obj) |
| 57 | (if (and obj (atom obj)) (list obj) obj)) |
| 58 | |
| 59 | (defun namep (obj) |
| 60 | (and (symbolp obj) (not (member obj '(t nil))))) |
| 61 | |
| 62 | (defun all-equal (&rest objects) |
| 63 | (or |
| 64 | (null objects) |
| 65 | (null (rest objects)) |
| 66 | (and |
| 67 | (equal (first objects) (second objects)) |
| 68 | (apply #'all-equal (rest objects))))) |
| 69 | |
| 70 | (defun neq (obj1 obj2) |
| 71 | (not (eq obj1 obj2))) |
| 72 | |
| 73 | (defmacro return-if (form) |
| 74 | (let ((result (make-symbol "RESULT"))) |
| 75 | `(let ((,result ,form)) |
| 76 | (when ,result |
| 77 | (return ,result))))) |
| 78 | |
| 79 | (defun make-pointer (address) |
| 80 | (int-sap address)) |
| 81 | |
| 82 | (defun null-pointer-p (pointer) |
| 83 | (zerop (sap-int pointer))) |
| 84 | |
| 85 | |
| 86 | (defmacro when-bind ((var expr) &body body) |
| 87 | `(let ((,var ,expr)) |
| 88 | (when ,var |
| 89 | ,@body))) |
| 90 | |
| 91 | |
| 92 | (defmacro assoc-ref (key alist &key (test #'eq)) |
| 93 | `(cdr (assoc ,key ,alist :test ,test))) |
| 94 | |
| 95 | |
| 96 | (defmacro assoc-lref (key alist &key (test #'eq)) |
| 97 | `(cadr (assoc ,key ,alist :test ,test))) |
| 98 | |
| 99 | |
| 100 | (defun assoc-rem (key alist &key (test #'eq)) |
| 101 | (remove-if #'(lambda (element) (funcall test key (car element))) alist)) |
| 102 | |
| 103 | |
| 104 | (defun assoc-delete (key alist &key (test #'eq)) |
| 105 | (delete-if #'(lambda (element) (funcall test key (car element))) alist)) |
| 106 | |
| 107 | |
| 108 | (defun funcallable (object) |
| 109 | (if (consp object) |
| 110 | (fdefinition object) |
| 111 | object)) |
| 112 | |
| 113 | (defun intersection-p (list1 list2 &key (test #'eq)) |
| 114 | (dolist (obj list1 nil) |
| 115 | (when (member obj list2 :test test) |
| 116 | (return-from intersection-p t)))) |
| 117 | |
| 118 | |
| 119 | (defun split-string (string delimiter) |
| 120 | (declare (simple-string string) (character delimiter)) |
| 121 | (let ((pos (position delimiter string))) |
| 122 | (if (not pos) |
| 123 | (list string) |
| 124 | (cons |
| 125 | (subseq string 0 pos) |
| 126 | (split-string (subseq string (1+ pos)) delimiter))))) |
| 127 | |
| 128 | (defun split-string-if (string predicate) |
| 129 | (declare (simple-string string)) |
| 130 | (let ((pos (position-if predicate string :start 1))) |
| 131 | (if (not pos) |
| 132 | (list string) |
| 133 | (cons |
| 134 | (subseq string 0 pos) |
| 135 | (split-string-if (subseq string pos) predicate))))) |
| 136 | |
| 137 | (defun concatenate-strings (strings &optional delimiter) |
| 138 | (if (not (rest strings)) |
| 139 | (first strings) |
| 140 | (concatenate |
| 141 | 'string |
| 142 | (first strings) |
| 143 | (if delimiter (string delimiter) "") |
| 144 | (concatenate-strings (rest strings) delimiter)))) |
| 145 | |
| 146 | (defun string-prefix-p (prefix string) |
| 147 | (and |
| 148 | (>= (length string) (length prefix)) |
| 149 | (string= prefix string :end2 (length prefix)))) |
| 150 | |
| 151 | (defun get-all (plist property) |
| 152 | (multiple-value-bind (property value tail) |
| 153 | (get-properties plist (list property)) |
| 154 | (when tail |
| 155 | (cons value (get-all (cddr tail) property))))) |
| 156 | |
| 157 | (defun plist-remove (plist property) |
| 158 | (when plist |
| 159 | (if (eq (first plist) property) |
| 160 | (plist-remove (cddr plist) property) |
| 161 | (list* |
| 162 | (first plist) (second plist) (plist-remove (cddr plist) property))))) |
| 163 | |
| 164 | |
| 165 | ;;; |
| 166 | |
| 167 | (defun utf-8-encode (code) |
| 168 | (labels ((encode-bytes (bit) |
| 169 | (unless (zerop bit) |
| 170 | (cons |
| 171 | (deposit-field |
| 172 | #x80 (byte 7 6) (ldb (byte bit (- bit 6)) code)) |
| 173 | (encode-bytes (- bit 6))))) |
| 174 | (encode-string (length) |
| 175 | (map 'string #'code-char |
| 176 | (cons |
| 177 | (deposit-field |
| 178 | (mask-field (byte 7 (- 7 length)) #xFF) |
| 179 | (byte 7 (- 6 length)) |
| 180 | (ldb (byte (+ (* length 6) 6) (* length 6)) code)) |
| 181 | (encode-bytes (* length 6)))))) |
| 182 | (cond |
| 183 | ((< code #x80) (string (code-char code))) |
| 184 | ((< code #x800) (encode-string 1)) |
| 185 | ((< code #x10000) (encode-string 2)) |
| 186 | ((< code #x200000) (encode-string 3)) |
| 187 | ((< code #x4000000) (encode-string 4)) |
| 188 | ((< code #x80000000) (encode-string 5)) |
| 189 | (t (error "Invalid char code ~A" code))))) |
| 190 | |
| 191 | |
| 192 | (defun latin1-to-unicode (string) |
| 193 | (reduce |
| 194 | #'(lambda (str1 str2) |
| 195 | (concatenate 'string str1 str2)) |
| 196 | (map 'list #'(lambda (char) (utf-8-encode (char-code char))) string))) |