vis-lua: implement vis:message(msg)

2 files changed, 18 insertions, 7 deletions

diff --git a/README.md b/README.md
index de79e8c..253f5c9 100644
--- a/README.md
+++ b/README.md
@@ -588,7 +588,8 @@ At this time there exists no API stability guarantees.
    - `win` currently focused window
    - `windows()` iterator
    - `command(cmd)`
-   - `info(msg)`
+   - `info(msg)` display a single line message
+   - `message(msg)` display an arbitrarily long message
    - `open(filename)`
    - `textobject_register(function)` register a Lua function as a text object, returns associated `id` or `-1`
    - `textobject(id)` select/execute a text object
diff --git a/vis-lua.c b/vis-lua.c
index d2a6bf0..a17ef3d 100644
--- a/vis-lua.c
+++ b/vis-lua.c
@@ -334,13 +334,22 @@ static int command(lua_State *L) {
 
 static int info(lua_State *L) {
 	Vis *vis = obj_ref_check(L, 1, "vis");
-	if (!vis) {
-		lua_pushnil(L);
-		return 1;
+	if (vis) {
+		const char *msg = luaL_checkstring(L, 2);
+		vis_info_show(vis, "%s", msg);
 	}
-	const char *msg = luaL_checkstring(L, 2);
-	vis_info_show(vis, "%s", msg);
-	return 0;
+	lua_pushboolean(L, vis != NULL);
+	return 1;
+}
+
+static int message(lua_State *L) {
+	Vis *vis = obj_ref_check(L, 1, "vis");
+	if (vis) {
+		const char *msg = luaL_checkstring(L, 2);
+		vis_message_show(vis, msg);
+	}
+	lua_pushboolean(L, vis != NULL);
+	return 1;
 }
 
 static int open(lua_State *L) {
@@ -564,6 +573,7 @@ static const struct luaL_Reg vis_lua[] = {
 	{ "windows", windows },
 	{ "command", command },
 	{ "info", info },
+	{ "message", message },
 	{ "open", open },
 	{ "map", map },
 	{ "motion", motion },