vis: allow :commands with a hyphen in the name

This fixes the argument parsing for the :{un,}map-window commands.

1 files changed, 1 insertions, 1 deletions

diff --git a/sam.c b/sam.c
index 3db08fd..1f5e816 100644
--- a/sam.c
+++ b/sam.c
@@ -328,7 +328,7 @@ static char *parse_cmdname(const char **s) {
 	Buffer buf;
 	buffer_init(&buf);
 
-	while (isalpha((unsigned char)**s))
+	while (isalpha((unsigned char)**s) || **s == '-')
 		buffer_append(&buf, (*s)++, 1);
 
 	if (buffer_length(&buf))