[PATCH v2 1/2] emacs: add a filter option to show

diff --git a/ce/fa074585339dde08eadb7e02287245d08b09a5 b/ce/fa074585339dde08eadb7e02287245d08b09a5
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--- /dev/null
+++ b/ce/fa074585339dde08eadb7e02287245d08b09a5
@@ -0,0 +1,114 @@
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+       Wed, 25 Apr 2012 10:12:32 -0700 (PDT)\r
+From: Mark Walters <markwalters1009@gmail.com>\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH v2 1/2] emacs: add a filter option to show\r
+Date: Wed, 25 Apr 2012 18:12:33 +0100\r
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+\r
+Show the current thread with a different filter (i.e., open messages\r
+in the thread matching the new query).\r
+\r
+Bound to 'l' for "limit".\r
+\r
+Note that it is not the same as filter in search mode as it replaces\r
+the existing query rather than ANDing with it (but it does keep the\r
+thread-id part of the query).\r
+---\r
+ emacs/notmuch-show.el |   12 ++++++++++++\r
+ 1 files changed, 12 insertions(+), 0 deletions(-)\r
+\r
+diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el\r
+index 30b26d1..4b4d663 100644\r
+--- a/emacs/notmuch-show.el\r
++++ b/emacs/notmuch-show.el\r
+@@ -42,6 +42,7 @@\r
+ (declare-function notmuch-search-next-thread "notmuch" nil)\r
+ (declare-function notmuch-search-show-thread "notmuch" nil)\r
+ (declare-function notmuch-update-tags "notmuch" (current-tags tag-changes))\r
++(declare-function notmuch-read-query "notmuch" (prompt))\r
+ \r
+ (defcustom notmuch-message-headers '("Subject" "To" "Cc" "Date")\r
+   "Headers that should be shown in a message, in this order.\r
+@@ -1157,6 +1158,7 @@ reset based on the original query."\r
+       (define-key map "s" 'notmuch-search)\r
+       (define-key map "m" 'notmuch-mua-new-mail)\r
+       (define-key map "f" 'notmuch-show-forward-message)\r
++      (define-key map "l" 'notmuch-show-filter-thread)\r
+       (define-key map "r" 'notmuch-show-reply-sender)\r
+       (define-key map "R" 'notmuch-show-reply)\r
+       (define-key map "|" 'notmuch-show-pipe-message)\r
+@@ -1399,6 +1401,16 @@ current thread."\r
+   "Mark the current message as read."\r
+   (notmuch-show-tag-message "-unread"))\r
+ \r
++(defun notmuch-show-filter-thread ()\r
++  "Filter or LIMIT the current thread based on a new query string.\r
++\r
++Reshows the current thread with matches defined by the new query-string."\r
++  (interactive)\r
++  (setq notmuch-show-query-context (notmuch-read-query "Filter thread: "))\r
++  (when (string= notmuch-show-query-context "")\r
++    (setq notmuch-show-query-context nil))\r
++  (notmuch-show-refresh-view t))\r
++\r
+ ;; Functions for getting attributes of several messages in the current\r
+ ;; thread.\r
+ \r
+-- \r
+1.7.9.1\r
+\r