<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >repl-substring-list</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="repl-substring-list-repl" HREF="repl-substring-list-repl.html"><LINK REL="NEXT" TITLE="string-replace" HREF="string-replace.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="repl-substring-list-repl.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="string-replace.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="REPL-SUBSTRING-LIST" ></A >repl-substring-list</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN837" ></A ><H2 >Name</H2 >repl-substring-list -- Replace the first target in the replacement list that matches</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN840" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >(repl-substring-list string replace-list pos)</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN843" ></A ><H2 >Description</H2 ><P >Replaces the first target in <TT CLASS="LITERAL" >replace-list</TT > that matches in <TT CLASS="LITERAL" >string</TT > at <TT CLASS="LITERAL" >pos</TT > with its replacement. See also <TT CLASS="LITERAL" >repl-substring-list?</TT >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN850" ></A ><H2 >Author</H2 ><P >Norman Walsh, <ndw@nwalsh.com></P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN853" ></A ><H2 >Source Code</H2 ><PRE CLASS="PROGRAMLISTING" >(define (repl-substring-list string replace-list pos) ;; Replace the first target in the replacement list that matches (if (repl-substring-list? string replace-list pos) (let ((target (repl-substring-list-target string replace-list pos)) (repl (repl-substring-list-repl string replace-list pos))) (repl-substring string target repl pos)) string))</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="repl-substring-list-repl.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="string-replace.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >repl-substring-list-repl</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="r300.htm" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >string-replace</TD ></TR ></TABLE ></DIV ></BODY ></HTML >