diff options
Diffstat (limited to 'src/lib/getopt.lua')
| -rw-r--r-- | src/lib/getopt.lua | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/lib/getopt.lua b/src/lib/getopt.lua index 91ce6cd..ede3e12 100644 --- a/src/lib/getopt.lua +++ b/src/lib/getopt.lua @@ -122,6 +122,9 @@ function Getopt:add(short, long, default, help, extensions) elseif name == "" then error("name (long|short) needs to be set") end + if short and (type(short) ~= "string" or #short ~= 1) then + error("short needs to be a string of length 1") + end if self._opt[name] then error("option "..name.." alredy exists") |