Add `field' to `erc-display-prompt'

* erc.el (erc-display-prompt): Adds the field text property to the
ERC prompt.  This allows users to use `kill-whole-line' to kill
all text back to the prompt given that it's on a single line.

Fixes: debbugs:10841

2 files changed, 8 insertions, 0 deletions

diff --git a/lisp/erc/ChangeLog b/lisp/erc/ChangeLog
index 34aa015d7ac..9f858ba96e5 100644
--- a/lisp/erc/ChangeLog
+++ b/lisp/erc/ChangeLog
@@ -1,3 +1,10 @@
+2012-04-10  Deniz Dogan  <deniz@dogan.se>  (tiny change)
+
+        * erc.el (erc-display-prompt): Adds the field text property to the
+        ERC prompt.  This allows users to use `kill-whole-line' to kill
+        all text back to the prompt given that it's on a single line
+        (bug#10841).
+
 2012-04-09  Chong Yidong  <cyd@gnu.org>
 
         * erc.el (erc-cmd-SET): Call custom-variable-p instead of
diff --git a/lisp/erc/erc.el b/lisp/erc/erc.el
index 62b701204d1..b79c2fd6c5e 100644
--- a/lisp/erc/erc.el
+++ b/lisp/erc/erc.el
@@ -3646,6 +3646,7 @@ If FACE is non-nil, it will be used to propertize the prompt.  If it is nil,
                                      'start-open t ; XEmacs
                                      'rear-nonsticky t ; Emacs
                                      'erc-prompt t
+                                     'field t
                                      'front-sticky t
                                      'read-only t))
         (erc-put-text-property 0 (1- (length prompt))