org-export-before-parsing-hook

org-export-before-parsing-hook is a variable defined in `ox.el'.
Its value is

nil

• This variable may be risky if used as a file-local variable.

Documentation:
Hook run before parsing an export buffer.

This is run after include keywords and macros have been expanded
and Babel code blocks executed, on a copy of the original buffer
being exported. Visibility and narrowing are preserved. Point
is at the beginning of the buffer.

Every function in this hook will be called with one argument: the
back-end currently used, as a symbol.