<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >has-ancestor-member?</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="DSSSL Library Reference" HREF="index.html"><LINK REL="UP" TITLE="Miscellaneous" HREF="r300.htm"><LINK REL="PREVIOUS" TITLE="ancestor-member" HREF="ancestor-member.html"><LINK REL="NEXT" TITLE="descendant-of?" HREF="descendant-of-p.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >DSSSL Library Reference: Part of the Modular DocBook Stylesheet distribution</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="ancestor-member.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="descendant-of-p.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="HAS-ANCESTOR-MEMBERX3F" ></A >has-ancestor-member?</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN924" ></A ><H2 >Name</H2 >has-ancestor-member? -- Returns true if the specified node has one of a set of GIs as an ancestor</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN927" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >(has-ancestor-member? nd gilist)</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN930" ></A ><H2 >Description</H2 ><P >Returns <TT CLASS="LITERAL" >#t</TT > if <TT CLASS="LITERAL" >nd</TT > has an ancestor whose GI is a member of <TT CLASS="LITERAL" >gilist</TT >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN936" ></A ><H2 >Author</H2 ><P >Norman Walsh, <ndw@nwalsh.com></P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN939" ></A ><H2 >Source Code</H2 ><PRE CLASS="PROGRAMLISTING" >(define (has-ancestor-member? nd gilist) ;; Returns true if the specified node has one of a set of GIs as an ancestor (not (node-list-empty? (ancestor-member nd gilist))))</PRE ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="ancestor-member.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="descendant-of-p.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >ancestor-member</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="r300.htm" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >descendant-of?</TD ></TR ></TABLE ></DIV ></BODY ></HTML >