Github user ajs6f commented on a diff in the pull request: https://github.com/apache/jena/pull/320#discussion_r153824555 --- Diff: jena-text/src/main/java/org/apache/jena/query/text/TextQueryPF.java --- @@ -295,6 +295,14 @@ private String chooseGraphURI(ExecutionContext execCxt) { return results; } + private boolean noLang(String lang) { + return (lang == null || lang.isEmpty() || " ".equals(lang)); --- End diff -- I don't know much about the text indexing, but this single space-- does that have some special meaning, or is it just a simple check for whitespace? I.e., could we see more than one space char here?
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