\input regression-test.tex
\DocumentMetadata{tagging=on,lang=en-US}
\documentclass{article}
\usepackage{osgstyler-lua}

\ExplSyntaxOn
\cs_new_protected:Npn \__osgstyler_test_tag_semantics:nn #1#2
  {
    \str_case:nnF {#1}
      {
        { emphasis }
          {
            \UseTaggingSocket { inline/begin }
              { tag=\UseStructureName{text/emph} }
            #2
            \UseTaggingSocket { inline/end }
          }
        { strong }
          {
            \UseTaggingSocket { inline/begin } { tag=Strong }
            #2
            \UseTaggingSocket { inline/end }
          }
      }
      {#2}
  }
\cs_new_eq:NN \TestTagSemantics \__osgstyler_test_tag_semantics:nn
\ExplSyntaxOff

\begin{document}

\SetOsgSemanticProcessor{\TestTagSemantics}
Plain text,
\UseOsgInlineStyle{emphasis}{forwarded emphasis},
\UseOsgInlineStyle{strong}{forwarded strong text}, and
\UseOsgInlineStyle{highlight}{semantically neutral highlighting}.

\clearpage
\SHOWPDFTAGS

\end{document}