<?xml version="1.0" encoding="utf-8" ?> <!-- for emacs: -*- coding: utf-8 -*- --> <!-- Apache may like this line in the file .htaccess: AddCharset utf-8 .html --> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg-flat.dtd" > <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head><title>substring -- extract part of a string</title> <link rel="stylesheet" type="text/css" href="../../../../Macaulay2/Style/doc.css"/> </head> <body> <table class="buttons"> <tr> <td><div><a href="___Sum.html">next</a> | <a href="_substituting_spvalues_spfor_spvariables.html">previous</a> | <a href="___Sum.html">forward</a> | <a href="_substituting_spvalues_spfor_spvariables.html">backward</a> | up | <a href="index.html">top</a> | <a href="master.html">index</a> | <a href="toc.html">toc</a> | <a href="http://www.math.uiuc.edu/Macaulay2/">Macaulay2 web site</a></div> </td> </tr> </table> <hr/> <div><h1>substring -- extract part of a string</h1> <div class="single"><h2>Description</h2> <div><div><h2>Synopsis</h2> <ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>substring(i,n,s)</tt><br/><tt>substring(s,i,n)</tt><br/><tt>substring((i,n),s)</tt></div> </dd></dl> </div> </li> <li>Inputs:<ul><li><span><tt>i</tt>, <span>an <a href="___Z__Z.html">integer</a></span></span></li> <li><span><tt>n</tt>, <span>an <a href="___Z__Z.html">integer</a></span></span></li> <li><span><tt>s</tt>, <span>a <a href="___String.html">string</a></span></span></li> </ul> </li> <li>Outputs:<ul><li><span>the substring of the string <tt>s</tt> starting at position <tt>i</tt> with length <tt>n</tt></span></li> </ul> </li> </ul> </div> <div><h2>Synopsis</h2> <ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>substring(i,s)</tt><br/><tt>substring(s,i)</tt></div> </dd></dl> </div> </li> <li>Inputs:<ul><li><span><tt>i</tt>, <span>an <a href="___Z__Z.html">integer</a></span></span></li> <li><span><tt>s</tt>, <span>a <a href="___String.html">string</a></span></span></li> </ul> </li> <li>Outputs:<ul><li><span>the substring of the string <tt>s</tt> starting at position <tt>i</tt> and continuing to the end of the string</span></li> </ul> </li> </ul> </div> <p>Positions are numbered starting at 0.</p> <p>If the starting position <tt>i</tt> is negative, it means to start at a position obtained by counting backward from the end of the string.</p> <p>Requests for character positions out of bounds are silently ignored.</p> </div> </div> <div class="waystouse"><h2>Ways to use <tt>substring</tt> :</h2> <ul><li>substring(Sequence,String)</li> <li>substring(String,ZZ)</li> <li>substring(String,ZZ,ZZ)</li> <li>substring(ZZ,String)</li> <li>substring(ZZ,ZZ,String)</li> </ul> </div> </div> </body> </html>