On Sunday, 29 July 2018 at 10:57:06 UTC, Cym13 wrote:
On Sunday, 29 July 2018 at 09:28:41 UTC, Ky-Anh Huynh wrote:
Hi,
I am using std.getopt and expect to parse an incremental
option with different names: --long, --longer, -l. The sample
code is here
[...]
I think -long is actually taken as -l -o -n -g here. Since you
didn't define -o, -n and -g it prints a usage error.
I think that I've got that. There isn't any actual definition of
short/long option names. That means if I provide
[code]
"l|long|longer+", &s_long
[/code]
getopt will define 6 variants: -l, --l, -long, --long, -longer,
--longer, and here `-long`, `-l` and `-longer` are both short:)
`Short` isn't related to the length of the option name. It's
short because there is only one dash (-). This way using "short"
is quite confusing.
Regarding the output of the default help message, I should put
`l` at the first position, as in `l|long|longer`. This is
slightly different from examples in the official documentation
(https://dlang.org/phobos/std_getopt.html) where you are expected
to see `long|longer|l+` instead.
