character; How should multiple hits be handeled? 'all' returns all matched IDs,
'first' only the first match, 'best' the best matching (by name) ID, 'ask' is a interactive mode and the user is asked for input,
'na' returns NA if multiple hits are found.
verbose
logical; print message during processing to console?
Value
A character vector with the substance ID and additional attributes matched (the matched
substance name) and d (either the string distance to the match, or the type of match).