* Re: .eps in image mode [not found] <87irg45jh6.fsf@chunyu.hit.edu.cn> @ 2006-12-23 20:14 ` Richard Stallman 2006-12-23 22:52 ` Juanma Barranquero 0 siblings, 1 reply; 5+ messages in thread From: Richard Stallman @ 2006-12-23 20:14 UTC (permalink / raw) Cc: emacs-devel C-x C-f a.eps open it again, then a.eps is in Image mode. We put something in magic-mode-alist that specifies Image mode for all postscript files. Maybe that is wrong. Which Postscript files should go into Image mode by default? None? ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: .eps in image mode 2006-12-23 20:14 ` .eps in image mode Richard Stallman @ 2006-12-23 22:52 ` Juanma Barranquero 2006-12-24 17:09 ` Richard Stallman 0 siblings, 1 reply; 5+ messages in thread From: Juanma Barranquero @ 2006-12-23 22:52 UTC (permalink / raw) Cc: Chunyu Wang, emacs-devel On 12/23/06, Richard Stallman <rms@gnu.org> wrote: > We put something in magic-mode-alist that specifies Image mode for all > postscript files. Maybe that is wrong. Certainly it is very permissive: ("\\`[\t\n\r ]*%!PS" . postscript) > Which Postscript files should go into Image mode by default? > None? auto-mode-alist (which would've been the one detecting .ps files until now) contains this: ("\\.[eE]?[pP][sS]\\'" . ps-mode) and `image-file-name-extensions' does not contain `.ps'. So probably we shouldn't try to identify .ps files as images by default. /L/e/k/t/u ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: .eps in image mode 2006-12-23 22:52 ` Juanma Barranquero @ 2006-12-24 17:09 ` Richard Stallman 2006-12-25 3:15 ` Juanma Barranquero 0 siblings, 1 reply; 5+ messages in thread From: Richard Stallman @ 2006-12-24 17:09 UTC (permalink / raw) Cc: chunyu, emacs-devel and `image-file-name-extensions' does not contain `.ps'. So probably we shouldn't try to identify .ps files as images by default. Does this patch give the right results? *** image.el 19 Dec 2006 11:57:52 -0500 1.64 --- image.el 23 Dec 2006 21:04:58 -0500 *************** *** 34,53 **** (defconst image-type-header-regexps ! '(("\\`/[\t\n\r ]*\\*.*XPM.\\*/" . xpm) ! ("\\`P[1-6][[:space:]]+\\(?:#.*[[:space:]]+\\)*[0-9]+[[:space:]]+[0-9]+" . pbm) ! ("\\`GIF8" . gif) ! ("\\`\x89PNG\r\n\x1a\n" . png) ! ("\\`[\t\n\r ]*#define" . xbm) ! ("\\`\\(?:MM\0\\*\\|II\\*\0\\)" . tiff) ! ("\\`[\t\n\r ]*%!PS" . postscript) ! ("\\`\xff\xd8" . (image-jpeg-p . jpeg))) ! "Alist of (REGEXP . IMAGE-TYPE) pairs used to auto-detect image types. When the first bytes of an image file match REGEXP, it is assumed to ! be of image type IMAGE-TYPE if IMAGE-TYPE is a symbol. If not a symbol, ! IMAGE-TYPE must be a pair (PREDICATE . TYPE). PREDICATE is called ! with one argument, a string containing the image data. If PREDICATE returns ! a non-nil value, TYPE is the image's type.") (defconst image-type-file-name-regexps '(("\\.png\\'" . png) --- 34,60 ---- (defconst image-type-header-regexps ! '(("\\`/[\t\n\r ]*\\*.*XPM.\\*/" xpm) ! ("\\`P[1-6][[:space:]]+\\(?:#.*[[:space:]]+\\)*[0-9]+[[:space:]]+[0-9]+" pbm) ! ("\\`GIF8" gif) ! ("\\`\x89PNG\r\n\x1a\n" png) ! ("\\`[\t\n\r ]*#define" xbm) ! ("\\`\\(?:MM\0\\*\\|II\\*\0\\)" tiff) ! ("\\`[\t\n\r ]*%!PS" postscript t) ! ("\\`\xff\xd8" (image-jpeg-p . jpeg))) ! "Alist of (REGEXP IMAGE-TYPE) pairs used to auto-detect image types. When the first bytes of an image file match REGEXP, it is assumed to ! be of image type IMAGE-TYPE if IMAGE-TYPE is a symbol. ! ! An element can also be (REGEXP IMAGE-TYPE NOT-ALWAYS). If ! NOT-ALWAYS is non-nil, that means that REGEXP identifies a ! file that _can_ be treated as an image of type IMAGE-TYPE, ! but such files should not be spontaneously treated as images. ! ! IMAGE-TYPE can be a pair (PREDICATE . TYPE) instead of a ! symbol. Then PREDICATE is called with one argument, a ! string containing the image data. If PREDICATE returns a ! non-nil value, TYPE is the image's type.") (defconst image-type-file-name-regexps '(("\\.png\\'" . png) *************** *** 205,211 **** type) (while types (let ((regexp (car (car types))) ! (image-type (cdr (car types)))) (if (or (and (symbolp image-type) (string-match regexp data)) (and (consp image-type) --- 212,218 ---- type) (while types (let ((regexp (car (car types))) ! (image-type (nth 1 (car types)))) (if (or (and (symbolp image-type) (string-match regexp data)) (and (consp image-type) *************** *** 218,234 **** ;;;###autoload ! (defun image-type-from-buffer () "Determine the image type from data in the current buffer. ! Value is a symbol specifying the image type or nil if type cannot ! be determined." (let ((types image-type-header-regexps) type (opoint (point))) (goto-char (point-min)) (while types (let ((regexp (car (car types))) ! (image-type (cdr (car types))) data) (if (or (and (symbolp image-type) (looking-at regexp)) --- 225,246 ---- ;;;###autoload ! (defun image-type-from-buffer (&optional include-maybes) "Determine the image type from data in the current buffer. ! Value is a symbol specifying the image type, or nil if none ! corresponds to the buffer contents. ! ! If INCLUDE-MAYBES is nil (the default), we return nil for ! file types that should not always be treated as images ! even though they can be so treated." (let ((types image-type-header-regexps) type (opoint (point))) (goto-char (point-min)) (while types (let ((regexp (car (car types))) ! (image-type (nth 1 (car types))) ! (not-always (nth 2 (car types))) data) (if (or (and (symbolp image-type) (looking-at regexp)) *************** *** 241,247 **** (min (point-max) (+ (point-min) 256)))))) (setq image-type (cdr image-type)))) ! (setq type image-type types nil) (setq types (cdr types))))) (goto-char opoint) --- 253,259 ---- (min (point-max) (+ (point-min) 256)))))) (setq image-type (cdr image-type)))) ! (setq type (unless not-always image-type) types nil) (setq types (cdr types))))) (goto-char opoint) *************** *** 261,267 **** (with-temp-buffer (set-buffer-multibyte nil) (insert-file-contents-literally file nil 0 256) ! (image-type-from-buffer)))) ;;;###autoload --- 273,279 ---- (with-temp-buffer (set-buffer-multibyte nil) (insert-file-contents-literally file nil 0 256) ! (image-type-from-buffer t)))) ;;;###autoload ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: .eps in image mode 2006-12-24 17:09 ` Richard Stallman @ 2006-12-25 3:15 ` Juanma Barranquero 2006-12-26 2:25 ` Richard Stallman 0 siblings, 1 reply; 5+ messages in thread From: Juanma Barranquero @ 2006-12-25 3:15 UTC (permalink / raw) Cc: chunyu, emacs-devel On 12/24/06, Richard Stallman <rms@gnu.org> wrote: > Does this patch give the right results? > *** image.el 19 Dec 2006 11:57:52 -0500 1.64 > --- image.el 23 Dec 2006 21:04:58 -0500 It certainly works for `magic-mode-alist', i.e., it forces PostScript files not to be automatically detected as images. As for this part, INCLUDE-MAYBES is declared as a new argument, but it is not referenced outside of the docstring, so `image-type-from-file-header' still returns nil for PostScript files: > --- 225,246 ---- > > > ;;;###autoload > ! (defun image-type-from-buffer (&optional include-maybes) > "Determine the image type from data in the current buffer. > ! Value is a symbol specifying the image type, or nil if none > ! corresponds to the buffer contents. > ! > ! If INCLUDE-MAYBES is nil (the default), we return nil for > ! file types that should not always be treated as images > ! even though they can be so treated." > (let ((types image-type-header-regexps) > type > (opoint (point))) > (goto-char (point-min)) > (while types > (let ((regexp (car (car types))) > ! (image-type (nth 1 (car types))) > ! (not-always (nth 2 (car types))) > data) > (if (or (and (symbolp image-type) > (looking-at regexp)) /L/e/k/t/u ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: .eps in image mode 2006-12-25 3:15 ` Juanma Barranquero @ 2006-12-26 2:25 ` Richard Stallman 0 siblings, 0 replies; 5+ messages in thread From: Richard Stallman @ 2006-12-26 2:25 UTC (permalink / raw) Cc: chunyu, emacs-devel Does this replacement patch fix the remaining problem? *** image.el 19 Dec 2006 11:57:52 -0500 1.64 --- image.el 25 Dec 2006 12:26:35 -0500 *************** *** 34,53 **** (defconst image-type-header-regexps ! '(("\\`/[\t\n\r ]*\\*.*XPM.\\*/" . xpm) ! ("\\`P[1-6][[:space:]]+\\(?:#.*[[:space:]]+\\)*[0-9]+[[:space:]]+[0-9]+" . pbm) ! ("\\`GIF8" . gif) ! ("\\`\x89PNG\r\n\x1a\n" . png) ! ("\\`[\t\n\r ]*#define" . xbm) ! ("\\`\\(?:MM\0\\*\\|II\\*\0\\)" . tiff) ! ("\\`[\t\n\r ]*%!PS" . postscript) ! ("\\`\xff\xd8" . (image-jpeg-p . jpeg))) ! "Alist of (REGEXP . IMAGE-TYPE) pairs used to auto-detect image types. When the first bytes of an image file match REGEXP, it is assumed to ! be of image type IMAGE-TYPE if IMAGE-TYPE is a symbol. If not a symbol, ! IMAGE-TYPE must be a pair (PREDICATE . TYPE). PREDICATE is called ! with one argument, a string containing the image data. If PREDICATE returns ! a non-nil value, TYPE is the image's type.") (defconst image-type-file-name-regexps '(("\\.png\\'" . png) --- 34,60 ---- (defconst image-type-header-regexps ! '(("\\`/[\t\n\r ]*\\*.*XPM.\\*/" xpm) ! ("\\`P[1-6][[:space:]]+\\(?:#.*[[:space:]]+\\)*[0-9]+[[:space:]]+[0-9]+" pbm) ! ("\\`GIF8" gif) ! ("\\`\x89PNG\r\n\x1a\n" png) ! ("\\`[\t\n\r ]*#define" xbm) ! ("\\`\\(?:MM\0\\*\\|II\\*\0\\)" tiff) ! ("\\`[\t\n\r ]*%!PS" postscript t) ! ("\\`\xff\xd8" (image-jpeg-p . jpeg))) ! "Alist of (REGEXP IMAGE-TYPE) pairs used to auto-detect image types. When the first bytes of an image file match REGEXP, it is assumed to ! be of image type IMAGE-TYPE if IMAGE-TYPE is a symbol. ! ! An element can also be (REGEXP IMAGE-TYPE NOT-ALWAYS). If ! NOT-ALWAYS is non-nil, that means that REGEXP identifies a ! file that _can_ be treated as an image of type IMAGE-TYPE, ! but such files should not be spontaneously treated as images. ! ! IMAGE-TYPE can be a pair (PREDICATE . TYPE) instead of a ! symbol. Then PREDICATE is called with one argument, a ! string containing the image data. If PREDICATE returns a ! non-nil value, TYPE is the image's type.") (defconst image-type-file-name-regexps '(("\\.png\\'" . png) *************** *** 205,211 **** type) (while types (let ((regexp (car (car types))) ! (image-type (cdr (car types)))) (if (or (and (symbolp image-type) (string-match regexp data)) (and (consp image-type) --- 212,218 ---- type) (while types (let ((regexp (car (car types))) ! (image-type (nth 1 (car types)))) (if (or (and (symbolp image-type) (string-match regexp data)) (and (consp image-type) *************** *** 218,234 **** ;;;###autoload ! (defun image-type-from-buffer () "Determine the image type from data in the current buffer. ! Value is a symbol specifying the image type or nil if type cannot ! be determined." (let ((types image-type-header-regexps) type (opoint (point))) (goto-char (point-min)) (while types (let ((regexp (car (car types))) ! (image-type (cdr (car types))) data) (if (or (and (symbolp image-type) (looking-at regexp)) --- 225,246 ---- ;;;###autoload ! (defun image-type-from-buffer (&optional include-maybes) "Determine the image type from data in the current buffer. ! Value is a symbol specifying the image type, or nil if none ! corresponds to the buffer contents. ! ! If INCLUDE-MAYBES is nil (the default), we return nil for ! file types that should not always be treated as images ! even though they can be so treated." (let ((types image-type-header-regexps) type (opoint (point))) (goto-char (point-min)) (while types (let ((regexp (car (car types))) ! (image-type (nth 1 (car types))) ! (not-always (nth 2 (car types))) data) (if (or (and (symbolp image-type) (looking-at regexp)) *************** *** 241,247 **** (min (point-max) (+ (point-min) 256)))))) (setq image-type (cdr image-type)))) ! (setq type image-type types nil) (setq types (cdr types))))) (goto-char opoint) --- 253,260 ---- (min (point-max) (+ (point-min) 256)))))) (setq image-type (cdr image-type)))) ! (setq type (if (or include-maybes (not not-always)) ! image-type) types nil) (setq types (cdr types))))) (goto-char opoint) *************** *** 261,267 **** (with-temp-buffer (set-buffer-multibyte nil) (insert-file-contents-literally file nil 0 256) ! (image-type-from-buffer)))) ;;;###autoload --- 274,280 ---- (with-temp-buffer (set-buffer-multibyte nil) (insert-file-contents-literally file nil 0 256) ! (image-type-from-buffer t)))) ;;;###autoload ^ permalink raw reply [flat|nested] 5+ messages in thread
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[not found] <87irg45jh6.fsf@chunyu.hit.edu.cn>
2006-12-23 20:14 ` .eps in image mode Richard Stallman
2006-12-23 22:52 ` Juanma Barranquero
2006-12-24 17:09 ` Richard Stallman
2006-12-25 3:15 ` Juanma Barranquero
2006-12-26 2:25 ` Richard Stallman
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