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docbook-style-dsssl-doc-1.79-16.mga7.noarch.rpm

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NAME="COMPONENT-CHILD-NUMBER"
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>component-child-number</H1
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><A
NAME="AEN1168"
></A
><H2
>Name</H2
>component-child-number&nbsp;--&nbsp;Find child-number within a component</DIV
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NAME="AEN1171"
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>Synopsis</H2
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>(component-child-number inputnd complist)</PRE
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><A
NAME="AEN1174"
></A
><H2
>Description</H2
><P
>Finds the first ancestor of <TT
CLASS="LITERAL"
>inputnd</TT
> in <TT
CLASS="LITERAL"
>complist</TT
> and then counts 
all the elements of type <TT
CLASS="LITERAL"
>inputnd</TT
> from that point on and returns
the number of <TT
CLASS="LITERAL"
>inputnd</TT
>.  (This is like a <TT
CLASS="LITERAL"
>recursive-child-number</TT
>
starting at the first parent of <TT
CLASS="LITERAL"
>inputnd</TT
> in <TT
CLASS="LITERAL"
>complist</TT
>.)</P
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><A
NAME="AEN1184"
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><H2
>Author</H2
><P
>Norman Walsh, &lt;ndw@nwalsh.com&gt;</P
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><A
NAME="AEN1187"
></A
><H2
>Source Code</H2
><PRE
CLASS="PROGRAMLISTING"
>(define (component-child-number inputnd complist)
  ;; Find child-number within a component
  (let loop ((nl (component-descendant-node-list inputnd complist))
	     (num 1))
    (if (node-list-empty? nl)
	0
	(if (node-list=? (node-list-first nl) inputnd)
	    num
	    (if (string=? (gi (node-list-first nl)) (gi inputnd))
		(loop (node-list-rest nl) (+ num 1))
		(loop (node-list-rest nl) num))))))</PRE
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