[PATCH] emacs/notmuch-wash.el: Add `notmuch-wash-convert-inline-patch-to-part'.
dme at dme.org
dme at dme.org
Tue Apr 27 03:20:58 PDT 2010
From: David Edmondson <dme at dme.org>
Detect inline patches and convert them to fake attachments, in order
that `diff-mode' highlighting can be applied to the patch. This can be
enabled by customising `notmuch-show-insert-text/plain-hook'.
---
emacs/notmuch-show.el | 3 ++-
emacs/notmuch-wash.el | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 40 insertions(+), 1 deletions(-)
diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index eb5335f..4b1baf3 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -71,7 +71,8 @@ any given message."
"Functions used to improve the display of text/plain parts."
:group 'notmuch
:type 'hook
- :options '(notmuch-wash-wrap-long-lines
+ :options '(notmuch-wash-convert-inline-patch-to-part
+ notmuch-wash-wrap-long-lines
notmuch-wash-tidy-citations
notmuch-wash-elide-blank-lines
notmuch-wash-excerpt-citations))
diff --git a/emacs/notmuch-wash.el b/emacs/notmuch-wash.el
index 57f0cc5..bf0a354 100644
--- a/emacs/notmuch-wash.el
+++ b/emacs/notmuch-wash.el
@@ -23,6 +23,8 @@
(require 'coolj)
+(declare-function notmuch-show-insert-bodypart "notmuch-show" (msg part depth)
+
;;
(defvar notmuch-wash-signature-regexp
@@ -231,4 +233,40 @@ When doing so, maintaining citation leaders in the wrapped text."
;;
+(require 'diff-mode)
+
+(defvar diff-file-header-re) ; From `diff-mode.el'.
+
+(defun notmuch-wash-convert-inline-patch-to-part (depth)
+ "Convert an inline patch into a fake 'text/x-diff' attachment.
+
+Given that this function guesses whether a buffer includes a
+patch and then guesses the extent of the patch, there is scope
+for error."
+
+ (goto-char (point-min))
+ (if (re-search-forward diff-file-header-re nil t)
+ (progn
+ (beginning-of-line -1)
+ (let ((patch-start (point))
+ (patch-end (point-max))
+ part)
+ (goto-char patch-start)
+ (if (or
+ ;; Patch ends with signature.
+ (re-search-forward notmuch-wash-signature-regexp nil t)
+ ;; Patch ends with bugtraq comment.
+ (re-search-forward "^\\*\\*\\* " nil t))
+ (setq patch-end (match-beginning 0)))
+ (save-restriction
+ (narrow-to-region patch-start patch-end)
+ (setq part (plist-put part :content-type "text/x-diff"))
+ (setq part (plist-put part :content (buffer-string)))
+ (setq part (plist-put part :id -1))
+ (setq part (plist-put part :filename "inline patch"))
+ (delete-region (point-min) (point-max))
+ (notmuch-show-insert-bodypart nil part depth))))))
+
+;;
+
(provide 'notmuch-wash)
--
1.7.0
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