/usr/lib/swipl/library/protobufs.pl
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 protobuf_segment_convert(+Form1, ?Form2) is multi[private]
A convenience predicate for dealing with the situation where protobuf_segment_message/2 interprets a segment of the wire stream as a form that you don't want (e.g., as a message but it should have been a UTF8 string).

Form1 is converted back to the original wire stream, then the predicate non-deterimisticly attempts to convert the wire stream to a string or length_delimited term (or both: the lattter always succeeds).

The possible conversions are: message(Tag,Segments) => string(Tag,String) message(Tag,Segments) => length_delimited(Tag,Codes) string(Tag,String) => length_delimited(Tag,Codes) length_delimited(Tag,Codes) => length_delimited(Tag,Codes)

Note that for fixed32, fixed64, only the signed integer forms are given; if you want the floating point forms, then you need to do use int64_float64_when/2 and int32_float32_when/2.

For example: ~~~{.pl} ?- protobuf_segment_convert( message(10,[fixed64(13,7309475598860382318)]), string(10,"inputType")). ?- protobuf_segment_convert( message(10,[fixed64(13,7309475598860382318)]), length_delimited(10,[105,110,112,117,116,84,121,112,101])). ?- protobuf_segment_convert( string(10, "inputType"), length_delimited(10,[105,110,112,117,116,84,121,112,101])). ?- forall(protobuf_segment_convert(string(1999,"\x1\\x0\\x0\\x0\\x2\\x0\\x0\\x0\"),Z), writeln(Z)). string(1999,