mirror/emacs
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-12-27 10:54:40 +00:00
Code Issues Releases Activity

(xselect-convert-to-string): If TYPE is non-nil,

Browse Source 
encode the selection data string.  Always return cons of type and
string.
(selection-converter-alist): Add (UTF8_STRING .
xselect-convert-to-string).
This commit is contained in:
Kenichi Handa 2002-08-14 00:57:55 +00:00
parent 79fab26b4f
commit eb1416b9bc
1 changed files with 79 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

102
lisp/select.el
View File

@ -133,29 +133,84 @@ Cut buffers are considered obsolete; you should use selections instead."
;;; for TIMESTAMP, which is a special case.
(defun xselect-convert-to-string (selection type value)
(cond ((stringp value)
;; Return the type as well, so that xselect.c could honor
;; requests whose type is STRING.
(cons type value))
((overlayp value)
(save-excursion
(or (buffer-name (overlay-buffer value))
(error "selection is in a killed buffer"))
(set-buffer (overlay-buffer value))
(buffer-substring (overlay-start value)
(overlay-end value))))
((and (consp value)
(markerp (car value))
(markerp (cdr value)))
(or (eq (marker-buffer (car value)) (marker-buffer (cdr value)))
(signal 'error
(list "markers must be in the same buffer"
(car value) (cdr value))))
(save-excursion
(set-buffer (or (marker-buffer (car value))
(error "selection is in a killed buffer")))
(buffer-substring (car value) (cdr value))))
(t nil)))
(let (str coding)
;; Get the actual string from VALUE.
(cond ((stringp value)
(setq str value))
((overlayp value)
(save-excursion
(or (buffer-name (overlay-buffer value))
(error "selection is in a killed buffer"))
(set-buffer (overlay-buffer value))
(setq str (buffer-substring (overlay-start value)
(overlay-end value)))))
((and (consp value)
(markerp (car value))
(markerp (cdr value)))
(or (eq (marker-buffer (car value)) (marker-buffer (cdr value)))
(signal 'error
(list "markers must be in the same buffer"
(car value) (cdr value))))
(save-excursion
(set-buffer (or (marker-buffer (car value))
(error "selection is in a killed buffer")))
(setq str (buffer-substring (car value) (cdr value))))))
(when str
;; If TYPE is nil, this is a local request, thus return STR as
;; is. Otherwise, encode STR.
(if (not type)
str
(setq coding (or next-selection-coding-system selection-coding-system))
(if coding
(setq coding (coding-system-base coding))
(setq coding 'raw-text))
;; Suppress producing escape sequences for compositions.
(remove-text-properties 0 (length str) '(composition nil) str)
(cond
((eq type 'TEXT)
(if (not (multibyte-string-p str))
;; Don't have to encode unibyte string.
(setq type 'STRING)
;; If STR contains only ASCII, Latin-1, and raw bytes,
;; encode STR by iso-latin-1, and return it as type
;; `STRING'. Otherwise, encode STR by CODING. In that
;; case, the returing type depends on CODING.
(let ((charsets (find-charset-string str)))
(setq charsets
(delq 'ascii
(delq 'latin-iso8859-1
(delq 'eight-bit-control
(delq 'eight-bit-graphic charsets)))))
(if charsets
(setq str (encode-coding-string str coding)
type (if (memq coding '(compound-text
compound-text-with-extensions))
'COMPOUND_TEXT
'STRING))
(setq type 'STRING
str (encode-coding-string str 'iso-latin-1))))))
((eq type 'COMPOUND_TEXT)
(setq str (encode-coding-string str coding)))
((eq type 'STRING)
(if (memq coding '(compound-text
compound-text-with-extensions))
(setq str (string-make-unibyte str))
(setq str (encode-coding-string str coding))))
((eq type 'UTF8_STRING)
(setq str (encode-coding-string str 'utf-8)))
(t
(error "Unknow selection type: %S" type))
))
(setq next-selection-coding-system nil)
(cons type str))))
(defun xselect-convert-to-length (selection type value)
(let ((value
@ -304,6 +359,7 @@ This function returns the string \"emacs\"."
'((TEXT . xselect-convert-to-string)
(COMPOUND_TEXT . xselect-convert-to-string)
(STRING . xselect-convert-to-string)
(UTF8_STRING . xselect-convert-to-string)
(TARGETS . xselect-convert-to-targets)
(LENGTH . xselect-convert-to-length)
(DELETE . xselect-convert-to-delete)