Github user afs commented on the issue:
https://github.com/apache/jena/pull/188
That looks OK for one file. What to do about multiple files on the command
line is trickier - that is, there are reasonable use cases for different
behaviors.
The call stack is (deepest first):
{noformat}
parseRIOT(String, String, TypedInputStream) : void - riotcmd.CmdLangParse
parseFile(String, String, TypedInputStream) : void - riotcmd.CmdLangParse
parseFile(String) : void - riotcmd.CmdLangParse
exec$() : void - riotcmd.CmdLangParse
exec() : void - riotcmd.CmdLangParse
{noformat}
where the multiple file loop is in `exec$()`. I wonder if the "parse*"
ought to return true/false (or throw a custom exception) as to whether they
succeeded or not and the decision of whether and when to exit is made in
`exec$` (just before the `postParse` step). Then an attempt to parse all the
files happens and then `exit(1)` if any are broken.
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