[
https://issues.apache.org/jira/browse/JENA-1864?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17060008#comment-17060008
]
Viresh Gupta commented on JENA-1864:
------------------------------------
I see. Thanks for clarifying 2 and pointers on 1.
And for 3, Indeed removing the `\#` character gets the output in the expected
format. Also, I didn't find any specifications on when to use the full range of
escaped characters and when to use the other. Out of curiosity – Is it possible
to tell NodeFormatterTTL about using escape characters or not? Probably
unlikely that using absolute IRIs would be an issue to someone, although it
would save some precious space while serializing to disk.
I'll try to get a patch for 1 up sometime soon. Just to ensure stream writing
isn't using some complicated and different mechanism:
Patch should add a function `writeBase()` in
`[writerStreamRDFBase|[https://github.com/apache/jena/blob/bfce1741cb12f9cf544235d32fba6598bc7341b5/jena-arq/src/main/java/org/apache/jena/riot/writer/WriterStreamRDFBase.java#L43]]`
similar to
`[TurtleShell|[https://github.com/apache/jena/blob/34cc2b30b1a913da5704e4518387cf014f89ffec/jena-arq/src/main/java/org/apache/jena/riot/writer/TurtleShell.java#L91]]`
and call it in TurtleWriterBlocks, and similarly new functions for the
FlatWriter(s)?
> Inconsistent Turtle serializers
> -------------------------------
>
> Key: JENA-1864
> URL: https://issues.apache.org/jira/browse/JENA-1864
> Project: Apache Jena
> Issue Type: Bug
> Affects Versions: Jena 3.14.0
> Environment: My Configuration:
> OS: Ubuntu 18.04
> java version "1.8.0_111"
> javac 1.8.0_242
> Jena Version: 3.14.0
> Reporter: Viresh Gupta
> Priority: Major
>
> The turtle serializers provided for default model in Jena don't work as
> expected. Moreover, the docs lack on which methods to use in which case.
> I found the following methods that seem to work:
> # model.write() (A.ttl)
> # RDFWriter (B.ttl)
> # RDFDataMgr (C.ttl)
> I'm providing a minimum working example along with the outputs using a sample
> turtle file from Turtle specifications (ggoblin.ttl – Example 1 from
> [https://www.w3.org/TR/turtle/|https://www.w3.org/TR/turtle/#sec-examples])
> in a gist: [https://gist.github.com/virresh/5a28dc3adb1f40bf9070e2cb4ecfa90d]
>
> The issue:
> # "@base" directive is not printed when writing with the TURTLE_BLOCK and
> TURTLE_FLAT format in RDFWriter
> # There is no way to provide "@base" inside the RDFDataMgr. Expected output
> was something like <#spiderman>
> # RDFDataMgr doesn't respect the prefix supplied, e.g I manually added
> prefix "@base", however, the output (C.ttl) still converts the relative
> entities into their absolute form, whereas I expected it to do something like
> base:#spiderman at the very least
>
> I'll be happy to help with the issue if it doesn't fall into the "wont-fix"
> category.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
