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Subject: DOCBOOK-APPS: Re: Yet more confusion over strings and objects in Lisp.

/ Gre7g Luterman <gre7g@wolfhome.com> was heard to say:
| (if (string=? (nav-context elemnode) "")
| part.  (nav-context elemnode) returns an object, not a string.  So 

If you're trying to test whether or not nav-context generates text, use

  (if (nav-context?)

(nav-context ...) returns a sosofo and those are by definition opaque.

                                        Be seeing you,

Norman Walsh <ndw@nwalsh.com>      | The sudden disappointment of hope
http://www.oasis-open.org/docbook/ | leaves a scar which the ultimate
Chair, DocBook Technical Committee | fulfillment of that hope never
                                   | entirely removes.--Thomas Hardy

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