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Linking from an store entry
As described in @sec:intro:problem the purpose of imag is to link content together. The following section describes, from a technical view, how this is done in imag.
There are two ways of linking in imag. You can either link internally or externally. The following sections describe the differences.
Linking to internal content
Internal links are links between store entries themselfes. This means that one store entry can link to another. Actually, links are not pointers but rather tries between entries, meaning that an link is not directed, but always a two-way pointer.
How linking works from the user interface is described in @sec:modules:link.
Linking to external content
Linking to external content means linking to files or directories which do not live inside the store itself but outside of it.
Each store entry can store one link to external content at most.
External linking should not be used from the user interface but rather the
ref feature (@sec:modules:ref) should be used.
@sec:modules:ref describes why that is.