tp://l1sp.org/cl/unless" class="xref">cl:unless</a></code> are handled to work like their usual macro/special equivalents. Any other symbol is treated as follows: If a function's symbol with the same symbol-name is externalised from  the <code><a href="#GENERIC-FUNCTION%20CLIP%3ACLIP" class="xref">clip</a></code> package, the <code><a href="#GENERIC-FUNCTION%20CLIP%3ACLIP" class="xref">clip</a></code> function is used. If not, the function named by the symbol in the symbol's package is used. This is done so