Return type: Boolean
Returns:       

Returns true if the specified stream is the #markup-parser stream and false otherwise. Replacing is with isnt will reverse the results.

  stream-name indexer? (is | isnt) markup-parser

A stream test that succeeds if the stream is the #markup-parser stream.

is sgml-parser is an older form of this test that is now deprecated. Note that is sgml-parser cannot be used to determine if the current parser is the SGML parser or the XML parser.

Related Syntax    #markup-parser    #sgml

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