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authorDaniel Colascione <dancol@dancol.org>2015-08-03 20:06:04 -0700
committerDaniel Colascione <dancol@dancol.org>2015-08-03 20:06:04 -0700
commit227e996946d4629fa8f6d665564a37668290c87f (patch)
treee0fc29d8bbd38d32ec3ab6ecc2459d242b41f85b
parent8a4b8ae32f66b00d0730490240b87e9b9b1cfa51 (diff)
downloademacs-227e996946d4629fa8f6d665564a37668290c87f.tar.gz
Improve ansi-color filtering of unrecognized escape sequences
* lisp/ansi-color.el (ansi-color-drop-regexp): Recognize mode-setting escape sequences. (ansi-color-filter-apply): Filter out unrecognized escape sequences (ansi-color-apply): Filter out unrecognized escape sequences
-rw-r--r--lisp/ansi-color.el12
1 files changed, 10 insertions, 2 deletions
diff --git a/lisp/ansi-color.el b/lisp/ansi-color.el
index 5088c3d7071..2f3b5064348 100644
--- a/lisp/ansi-color.el
+++ b/lisp/ansi-color.el
@@ -154,7 +154,7 @@ foreground and background colors, respectively."
"Regexp that matches SGR control sequences.")
(defconst ansi-color-drop-regexp
- "\033\\[\\([ABCDsuK]\\|[12][JK]\\|=[0-9]+[hI]\\|[0-9;]*[Hf]\\)"
+ "\033\\[\\([ABCDsuK]\\|[12][JK]\\|=[0-9]+[hI]\\|[0-9;]*[Hf]\\|\\?[0-9]+[hl]\\)"
"Regexp that matches ANSI control sequences to silently drop.")
(defconst ansi-color-parameter-regexp "\\([0-9]*\\)[m;]"
@@ -261,7 +261,11 @@ This function can be added to `comint-preoutput-filter-functions'."
;; find the next escape sequence
(while (setq end (string-match ansi-color-regexp string start))
(setq result (concat result (substring string start end))
- start (match-end 0)))
+ start (match-end 0)))
+ ;; eliminate unrecognized escape sequences
+ (while (string-match ansi-color-drop-regexp string)
+ (setq string
+ (replace-match "" nil nil string)))
;; save context, add the remainder of the string to the result
(let (fragment)
(if (string-match "\033" string start)
@@ -327,6 +331,10 @@ This function can be added to `comint-preoutput-filter-functions'."
(when codes
(put-text-property start (length string)
'font-lock-face (ansi-color--find-face codes) string))
+ ;; eliminate unrecognized escape sequences
+ (while (string-match ansi-color-drop-regexp string)
+ (setq string
+ (replace-match "" nil nil string)))
;; save context, add the remainder of the string to the result
(let (fragment)
(if (string-match "\033" string start)