Methinks the current intention of spec writers is:

+ is now a reserved operator for the License Expression Syntax

So therefore + should be illegal character in license idstring

So inconsistency in this regard would seem to be a bug in the spec

-Bill

> On Oct 28, 2015, at 5:42 AM, Schuberth, Sebastian 
> <[email protected]> wrote:
> 
> Hi,
> 
> when debugging an issue in the spdx-tools verifier, I noticed the SPDX 2.0 
> specs seem to be inconsistent on whether "+" is a valid character in a 
> LicenseRef's idstring, like in LicenseRef-[idstring].
> 
> Sections 3.13.4 and 4.6.4 also refer to LicenseRefs and say
> 
>    [idstring]  is  a  unique  string  containing  letters,  numbers,  "."  or 
>  "-"
> 
> Yet section 5.1.4 explicitly says for the case of LicenseRef
> 
>    [idstring]  is  a  unique  string  containing  letters,  numbers,  ".",  
> "-"  or  "+"
> 
> Is there any consensus? I'd vote for "+" to be valid in order to have 
> LicenseRefs like "LicenseRef-LGPL-3.0+".
> 
> BTW: There's similar inconsistencies regarding DocumentRef idstrings, see 
> sections 2.6.4 vs. 3.13.4 / 4.6.4 and other places that refer to an SPDXID.
> 
> Sebastian Schuberth
> Lead Engineer
> Open Source Governance, Chief Technology Office
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