在rdfproc / redland中如何添加类型文字?该手册页说:
add-typed SUBJECT PREDICATE OBJECT OBJECT-LANG OBJECT-URI [CONTEXT]
Add the triple with the datatyped literal object to the graph, in the optional Redland context if CONTEXT is given.
我的rdf文件:
$ xmllint test.rdf
<?xml version="1.0" encoding="utf-8"?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
</rdf:RDF>
我试过了:
$ rdfproc --storage file test.rdf add-typed "http://my/subject" "http://my/predicate" "2015-50-17T15:50:00" "fr" "http://www.w3.org/2001/XMLSchema#dateTime"
但出现以下错误:
rdfproc: cannot have missing triple parts for add-typed
简单的添加&#39;工作正常。
$ rdfproc --storage file test.rdf add "http://my/subject" "http://my/predicate" "2015-50-17T15:50:00" && xmllint test.rdf
rdfproc: Added triple to the graph
<?xml version="1.0" encoding="utf-8"?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xml:base="file:///home/lindenb/path/test.rdf">
<rdf:Description rdf:about="http://my/subject">
<ns0:predicate xmlns:ns0="http://my/">2015-50-17T15:50:00</ns0:predicate>
</rdf:Description>
</rdf:RDF>
版本:
$ rdfproc -version
1.0.14
答案 0 :(得分:0)
您不能同时指定语言和数据类型。
要省略,请在命令行上提供-
。例如:
rdfproc -n --storage sqlite test.sq add-typed "http://my/subject" "http://my/predicate" "2015-50-17T15:50:00" - "http://www.w3.org/2001/XMLSchema#dateTime"
我将存储类型更改为sqlite并添加了创建新存储-n
的选项 - 文件存储会产生另一个错误rdfproc: Warning - Model does not support contexts rdfproc: Failed to add triple to the graph
并且我没有阅读足够的来源来弄清楚如何解决这个问题。