osp-check-characters
osp-check-characters -o OUTPUT-DIR INPUT-FILE
Check characters used in tag keys and member roles. Definitely good characters
are ASCII a-z, A-Z, 0-9, _ (underscore), - (hyphen), and : (colon). They
are in very many keys and roles. Objects which only contain tag keys and roles
with those characters are ignored. Everything else will be written out to
undecided-chars.osm.pbf or bad-chars.osm.pbf if there are characters from a
list of possibly problematic characters.