From: NeilBrown <neil@brown.name>
Date: Fri, 23 Jun 2023 07:17:16 +0000 (+1000)
Subject: messageline: treat an empty message as message-removal.
X-Git-Url: http://git.neil.brown.name/?a=commitdiff_plain;h=60f0f05badf8fa174cff98b5fb84eee6c71814ea;p=edlib.git

messageline: treat an empty message as message-removal.

If a Message command provides a zero-lenth message, remove any current
message rather than setting a explicit empty message.  This allows a
default to appear.

Signed-off-by: NeilBrown <neil@brown.name>
---

diff --git a/lib-messageline.c b/lib-messageline.c
index b460d9ab..38f518b5 100644
--- a/lib-messageline.c
+++ b/lib-messageline.c
@@ -79,14 +79,20 @@ DEF_CMD(messageline_msg)
 		}
 		if (strcmp(ci->key, "Message:modal") == 0) {
 			free(mli->modal);
-			mli->modal = strdup(ci->str);
+			if (ci->str[0])
+				mli->modal = strdup(ci->str);
+			else
+				mli->modal = NULL;
 		} else {
 			free(mli->message);
-			mli->message = strdup(ci->str);
+			if (ci->str[0])
+				mli->message = strdup(ci->str);
+			else
+				mli->message = NULL;
 			/* x==0 check ensures we only append message once when
 			 * it comes in via a broadcast notification
 			 */
-			if (ci->x == 0 && mli->log)
+			if (ci->x == 0 && mli->log && ci->str[0])
 				call("doc:log:append", mli->log,
 				     0, NULL, ci->str);
 		}
diff --git a/tests.d/00-basic b/tests.d/00-basic
index c8c624b1..ddd61f32 100644
--- a/tests.d/00-basic
+++ b/tests.d/00-basic
@@ -552,7 +552,7 @@ Display 80,30 C75DC08E4E11119316EAE1D2121340F1 19,2
 Key ":Down"
 Display 80,30 BFEDE38C97802B694CAC529C933B95EB 14,2
 Key ":A:Backspace"
-Display 80,30 6B3275E04C77584F9E1C909E7902D822 5,2
+Display 80,30 00A42957F180C50266C8875DC86B8B53 5,2
 Key "-d"
 Display 80,30 4D1EEFD308CCFB4E88474E265CE5B975 6,2
 Key "-i"
@@ -572,7 +572,7 @@ Display 80,30 2AA09FEFEDF600B1DF2DD2ED9DD14534 16,2
 Key ":Left"
 Display 80,30 6CD98BAF00C0148D9C5A8403AB6A0F53 19,2
 Key ":Enter"
-Display 80,30 558431EA4E0EC2686B5C4D2EED2078AC 1,3
+Display 80,30 015974AB421009735E6657A44B68B77E 1,3
 Key ":C-U"
 Display 80,30 4B1C47234051213271FED14393477B35 1,3
 Key ":C-X"
@@ -605,4 +605,4 @@ Key ":C-X"
 Display 80,30 84F4B35BF26F9D5EEBB67D572ADD0BBF 1,0
 Key ":C-C"
 Display 80,30 4790F2887DC559E9927F4059D9F4365D 1,0
-Close 1531
+Close 1530