Hi Andy, Thanks for the help. I have made a file with only prefixes and a command like the one below works nice:
riot -formatted=ttl prefixes.ttl in.nt > out.ttl It is a big improvement. Is there perhaps a way to use @base too? If I put @base in the prefixes.ttl file it seems to be ignored, just like a specification of the base URI as a command line parameter. Greetings, Frans On 6 September 2016 at 12:01, Andy Seaborne <a...@apache.org> wrote: > Hi Frans, > > See "riot --help" for your version. > https://jena.apache.org/documentation/io/#command-line-tools > > Currently: > > --output=FMT > Output in the given format, streaming if possible. > --formatted=FMT > Output, using pretty printing (consumes memory) > --stream=FMT > Output, using a streaming format > > and make FMT "TTL" > > Note that --formatted (the prettiest) has to read all input into memory > before printing begins which can be an issue at large scale, the other > forms don't need this. > > To set particular prefixes when the data does provide them, add your own > Turtle file with just prefixes in it. > > riot --formatted=TTL myprefixes.ttl data...data 2>/dev/null > > Andy > > > On 06/09/16 10:38, Frans Knibbe wrote: > >> Hello, >> >> I use riot to convert RDF files to different formats on the command line. >> It works well, but I wonder if there is an option to have @base and >> @prefix >> definitions in the output in turtle format. In many cases that would >> result >> in more compact files that are easier to read for humans. >> >> I can image riot could identify repeating URI prefixes itself, or perhaps >> a >> file with @prefix definitions could be supplied as a parameter... >> >> As for @base, I see that there is a parameter --base=URI for riot. But >> using it does not seem to give an @base in turtle output. >> >> Greetings, >> Frans >> >>
