Fix for SPDX validation failure due to invalid CPE strings #45
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I've fixed an issue where an error occurs when generating SPDX SBOM for packages with '+' in their names, due to an invalid CPE string.
Also, I've fixed to escape special characters other than +. As spdx-tools does not support percent encoding, I'm using backslash escape encoding instead.
Note:
For this instance, we have adopted the '' escape method.
There is also the '%' escape method, and looking at the specifications for cpe and uri, it seemed that using that method would be better.
However, since spdx-tools is designed to only interpret the '' escape method, I've conformed to that approach.
This patch fixes: