<<file:link>> and <<file:link,text>> links to other files work now.
[func_ref_file-inlinemacro]
<a href='{filename}.html#fun_{name}'>{caption=<tt>{name}:!:{params}</tt>}</a>
+[xref_file-inlinemacro]
+<a href='{filename}.html#{target}'>{caption=[{target}]}</a>
+
[func_anchor-inlinemacro]
<div class="literalblock" id="fun_{name}"><div class="content"><pre><tt>{prefix}:!:{params}</tt></pre></div></div>
[macros]
(?su)[\\]?<<(?P<filename>\w+):(?P<name>[^&;:()<> ]+)(?P<params>\([^&:;]*\);?)(,(?P<caption>[^&;]+))?>>=func_ref_file
(?su)[\\]?<<(?P<name>[^&;:()<> ]+)(?P<params>\([^&:;]*\);?)(,(?P<caption>[^&;]+))?>>=func_ref
+(?su)[\\]?<<(?P<filename>\w+):(?P<target>\w+)(,(?P<caption>[^&;]+))?>>=xref_file
(?su)[\\]?@(?P<name>\w+)=func_param
(?su)[\\]?!!f!(?P<prefix>[^!]*(?P<name>\w+))(?P<params>\([^&;:()]*\);?)[^!]*!!!=func_anchor
(?su)[\\]?(?P<all>(?P<name>\w+)\([^();:]*\))=func_auto_ref