func (rewrite Rewrite) Apply(termPtr *argo.Term) {
term := *termPtr
termStr := ""
switch realTerm := term.(type) {
case *argo.Resource:
termStr = realTerm.URI
case *argo.BlankNode:
termStr = "_:" + realTerm.ID
case *argo.Literal:
return
}
match := rewrite.Regexp.FindStringSubmatchIndex(termStr)
if match != nil {
resBytes := rewrite.Regexp.ExpandString(nil, rewrite.Template, termStr, match)
resStr := string(resBytes)
if len(resStr) >= 2 && resStr[0] == '_' && resStr[1] == ':' {
*termPtr = argo.NewBlankNode(resStr[2:])
} else {
*termPtr = argo.NewResource(resStr)
}
Rewritten++
}
}
func node2term(node string) (term argo.Term) {
if len(node) >= 2 && node[0] == '_' && node[1] == ':' {
return argo.NewBlankNode(node[2:])
} else {
return argo.NewResource(node)
}
return nil
}
func parseBnode(rp *ResultParser, itok xml.Token) (newState stateFunc, err error) {
switch tok := itok.(type) {
case xml.Comment:
return parseBnode, nil
case xml.CharData:
rp.currentResult[rp.currentBinding] = argo.NewBlankNode(string(tok))
rp.currentBinding = ""
return parseBnode, nil
case xml.EndElement: // </bnode>
return parseBinding, nil
}
return nil, fmt.Errorf("Unexpected %T in parseBnode", itok)
}
func str2term(uri string) (term argo.Term) {
if len(uri) >= 2 && uri[0] == '_' && uri[1] == ':' {
return argo.NewBlankNode(uri[2:])
}
return argo.NewResource(uri)
}