Source field in binary Packages list

[Thadeu Lima de Souza Cascardo <cascardo@xxxxxxxxxxxxxx>]

Hello,

I am working on a grouping feature for aptitude, to group binary
packages by their source package. However, some packages in the Packages
file do not have a Source field. My guess was to use the package name as
the source package name. Is this right?

Thanks,
Thadeu Cascardo.