<RefEntry id="repl-substring">
<!-- This file is generated automatically from the DSSSL source. -->
<!-- Do not edit this file! -->
<?html-filename repl-substring.html>

<RefMeta>
  <RefEntryTitle>repl-substring</RefEntryTitle>
  <RefMiscInfo Role="file">dblib.dsl</RefMiscInfo>
</RefMeta>

<RefNameDiv>
  <RefName>repl-substring</RefName>
  <RefPurpose>Replace substring in a string</RefPurpose>
</RefNameDiv>

<RefSynopsisDiv><Title>Synopsis</Title>
<Synopsis>
(repl-substring string target repl pos)
</Synopsis>
</RefSynopsisDiv>

<RefSect1><Title>Description</Title>

<para>
Replaces <literal>target</literal> with <literal>repl</literal> in <literal>string</literal> at <literal>pos</literal>.</para>


</RefSect1>

<RefSect1><Title>Author</Title>

<para>
Norman Walsh, &lt;ndw@nwalsh.com&gt;
</para>
</RefSect1>
<RefSect1><Title>Source Code</Title>

<ProgramListing>
(define (repl-substring string target repl pos)
  ;; Replace substring in a string
  (let ((matches (repl-substring? string target pos)))
    (if matches
	(string-append
	 (substring string 0 pos)
	 repl
	 (substring string 
		    (+ pos (string-length target)) 
		    (string-length string)))
	string)))
</ProgramListing>
</RefSect1>

</RefEntry>