Add command completion with tab key

In the command prompt, press <tab> to get a list of all available
commands and pick one (using vis-menu). This works also after typing the
first letters of a command (p.e. `:la<tab>`).

Co-authored-by: Matěj Cepl <mcepl@cepl.eu>

1 files changed, 9 insertions, 0 deletions

diff --git a/vis-cmds.c b/vis-cmds.c
index 482508f..b543683 100644
--- a/vis-cmds.c
+++ b/vis-cmds.c
@@ -693,6 +693,15 @@ static bool print_cmd(const char *key, void *value, void *data) {
 	return text_appendf(data, "  %-30s %s\n", usage, help ? help : "");
 }
 
+static bool print_cmd_name(const char *key, void *value, void *data) {
+	CommandDef *cmd = value;
+	return buffer_appendf(data, "%s\n", cmd->name);
+}
+
+void vis_print_cmds(Vis *vis, Buffer *buf) {
+	map_iterate(vis->cmds, print_cmd_name, buf);
+}
+
 static bool print_option(const char *key, void *value, void *txt) {
 	char desc[256];
 	const OptionDef *opt = value;