2 (?su)[\\]?<<(?P<filename>\w+):(?P<name>[^&;:()<> ]+)(?P<params>\([^&:;]*\);?)(,(?P<caption>[^&;]+))?>>=func_ref_file
3 (?su)[\\]?<<(?P<name>[^&;:()<> ]+)(?P<params>\([^&:;]*\);?)(,(?P<caption>[^&;]+))?>>=func_ref
4 (?su)[\\]?<<(?P<filename>\w+):(?P<target>\w+)(,(?P<caption>[^&;]+))?>>=xref_file
5 (?su)[\\]?@(?P<name>\w+)=func_param
6 (?su)[\\]?!!f!(?P<prefix>[^!]*(?P<name>\w+))(?P<params>\([^&;:()]*\);?)[^!]*!!!=func_anchor
7 (?su)[\\]?(?P<all>(?P<name>\w+)\([^();:]*\))=func_auto_ref