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<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, <ndw@nwalsh.com>
</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>
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