insert-file-structure file

Replaces the structural selection of the current buffer with the contents of the given file. Only the structural selection is replaced, not the entire buffer contents. If the given file is in text format, it must be syntactically correct with respect to the syntactic category of the structural selection; if syntactically incorrect, the text is left unparsed and the insertion cursor is positioned near the error. If the given file is in structure or attributed format, the phrase contained in the file must have the same syntactic category as the structural selection.