Re: [Boost-users] [program_options][1.35] validating string value

Subject: Re: [Boost-users] [program_options][1.35] validating string value
From: André Prins (a.h.prins_at_[hidden])
Date: 2010-02-17 05:53:17

Hi,

What I often do, is keep the string as is, but validate it upon
extraction from the value-map. I understand however that this is not
exactly as desired.

A better way may be to add an additional parser, which checks the
string (e.g. using regex). See the How To: Non-conventional syntax:
http://www.boost.org/doc/libs/1_42_0/doc/html/program_options/howto.html#id1420416

Regards,
André

On Wed, Feb 17, 2010 at 11:45 AM, michele.caini_at_[hidden]
<michele.caini_at_[hidden]> wrote:
> Using regex can help you, maybe?
>
> ----- Reply message -----
> Da: "Soumen" <soumen78_at_[hidden]>
> Data: mer, feb 17, 2010 11:40
> Oggetto: [Boost-users]  [program_options][1.35] validating string value
> A: <boost-users_at_[hidden]>
>
>
> Hi,
>
> My option (say, "opt1") can take any of only few possible string type values
> (say, "value1", "value2", "value3" and "value4"). Is there anyway to specify
> this such that if any other value, say - "valueXX", is passed to "opt1", it
> throws an error?
>
> If yes, can someone point me to documentation or sample code snippet to show
> how to do this?
>
> Or, explicitly, checking against these possible values is my only option?
>
> Regards,
> ~ Soumen
> --
> View this message in context:
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