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author | Stefan Monnier <monnier@iro.umontreal.ca> | 2010-12-06 11:51:37 -0500 |
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committer | Stefan Monnier <monnier@iro.umontreal.ca> | 2010-12-06 11:51:37 -0500 |
commit | ce327e48a158a1b59c6ccf54c26763c3460ca268 (patch) | |
tree | 6e004331a9f573d8a88cbac7959952d3f38a65ef /lisp/ansi-color.el | |
parent | bba3e50834d3957fe2b6f345075a6f38839de4bc (diff) | |
download | emacs-ce327e48a158a1b59c6ccf54c26763c3460ca268.tar.gz |
* lisp/ansi-color.el (ansi-color-unfontify-region): Replace by trivial def.
(ansi-color-filter-apply): Simplify.
(ansi-color-apply): Use `font-lock-face' rather than `face'.
Diffstat (limited to 'lisp/ansi-color.el')
-rw-r--r-- | lisp/ansi-color.el | 61 |
1 files changed, 7 insertions, 54 deletions
diff --git a/lisp/ansi-color.el b/lisp/ansi-color.el index 6bc95fa8d94..98eeca325b2 100644 --- a/lisp/ansi-color.el +++ b/lisp/ansi-color.el @@ -215,48 +215,10 @@ This is a good function to put in `comint-output-filter-functions'." (add-hook 'comint-output-filter-functions 'ansi-color-process-output) - -;; Alternative font-lock-unfontify-region-function for Emacs only - -(defun ansi-color-unfontify-region (beg end &rest xemacs-stuff) - "Replacement function for `font-lock-default-unfontify-region'. - -As text properties are implemented using extents in XEmacs, this -function is probably not needed. In Emacs, however, things are a bit -different: When font-lock is active in a buffer, you cannot simply add -face text properties to the buffer. Font-lock will remove the face -text property using `font-lock-unfontify-region-function'. If you want -to insert the strings returned by `ansi-color-apply' into such buffers, -you must set `font-lock-unfontify-region-function' to -`ansi-color-unfontify-region'. This function will not remove all face -text properties unconditionally. It will keep the face text properties -if the property `ansi-color' is set. - -The region from BEG to END is unfontified. XEMACS-STUFF is ignored. - -A possible way to install this would be: - -\(add-hook 'font-lock-mode-hook - \(function (lambda () - \(setq font-lock-unfontify-region-function - 'ansi-color-unfontify-region))))" - ;; Simplified now that font-lock-unfontify-region uses save-buffer-state. - (when (boundp 'font-lock-syntactic-keywords) - (remove-text-properties beg end '(syntax-table nil))) - ;; instead of just using (remove-text-properties beg end '(face - ;; nil)), we find regions with a non-nil face text-property, skip - ;; positions with the ansi-color property set, and remove the - ;; remaining face text-properties. - (while (setq beg (text-property-not-all beg end 'face nil)) - (setq beg (or (text-property-not-all beg end 'ansi-color t) end)) - (when (get-text-property beg 'face) - (let ((end-face (or (text-property-any beg end 'face nil) - end))) - (remove-text-properties beg end-face '(face nil)) - (setq beg end-face))))) +(defalias 'ansi-color-unfontify-region 'font-lock-default-unfontify-region) +(make-obsolete 'ansi-color-unfontify-region "not needed any more" "24.1") ;; Working with strings - (defvar ansi-color-context nil "Context saved between two calls to `ansi-color-apply'. This is a list of the form (FACES FRAGMENT) or nil. FACES is a list of @@ -290,9 +252,7 @@ This function can be added to `comint-preoutput-filter-functions'." (setq fragment (substring string pos) result (concat result (substring string start pos)))) (setq result (concat result (substring string start)))) - (if fragment - (setq ansi-color-context (list nil fragment)) - (setq ansi-color-context nil))) + (setq ansi-color-context (if fragment (list nil fragment)))) result)) (defun ansi-color-apply (string) @@ -309,10 +269,7 @@ Every call to this function will set and use the buffer-local variable This information will be used for the next call to `ansi-color-apply'. Set `ansi-color-context' to nil if you don't want this. -This function can be added to `comint-preoutput-filter-functions'. - -You cannot insert the strings returned into buffers using font-lock. -See `ansi-color-unfontify-region' for a way around this." +This function can be added to `comint-preoutput-filter-functions'." (let ((face (car ansi-color-context)) (start 0) end escape-sequence result colorized-substring) @@ -325,8 +282,7 @@ See `ansi-color-unfontify-region' for a way around this." (setq escape-sequence (match-string 1 string)) ;; Colorize the old block from start to end using old face. (when face - (put-text-property start end 'ansi-color t string) - (put-text-property start end 'face face string)) + (put-text-property start end 'font-lock-face face string)) (setq colorized-substring (substring string start end) start (match-end 0)) ;; Eliminate unrecognized ANSI sequences. @@ -338,8 +294,7 @@ See `ansi-color-unfontify-region' for a way around this." (setq face (ansi-color-apply-sequence escape-sequence face))) ;; if the rest of the string should have a face, put it there (when face - (put-text-property start (length string) 'ansi-color t string) - (put-text-property start (length string) 'face face string)) + (put-text-property start (length string) 'font-lock-face face string)) ;; save context, add the remainder of the string to the result (let (fragment) (if (string-match "\033" string start) @@ -347,9 +302,7 @@ See `ansi-color-unfontify-region' for a way around this." (setq fragment (substring string pos)) (push (substring string start pos) result)) (push (substring string start) result)) - (if (or face fragment) - (setq ansi-color-context (list face fragment)) - (setq ansi-color-context nil))) + (setq ansi-color-context (if (or face fragment) (list face fragment)))) (apply 'concat (nreverse result)))) ;; Working with regions |