<?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>getSymbol -- make a global symbol from a string</title> <link rel="stylesheet" type="text/css" href="../../../../Macaulay2/Style/doc.css"/> </head> <body> <table class="buttons"> <tr> <td><div><a href="_get__W__W__W.html">next</a> | <a href="_get__Non__Unit.html">previous</a> | <a href="_get__W__W__W.html">forward</a> | <a href="_get__Non__Unit.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>getSymbol -- make a global symbol from a string</h1> <div class="single"><h2>Synopsis</h2> <ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>getSymbol s</tt></div> </dd></dl> </div> </li> <li><div class="single">Inputs:<ul><li><span><tt>s</tt>, <span>a <a href="___String.html">string</a></span>, the name of the global symbol</span></li> </ul> </div> </li> <li><div class="single">Outputs:<ul><li><span><span>a <a href="___Symbol.html">symbol</a></span>, a previously existing global symbol whose name is contained in the string <tt>s</tt>, if one exists and is visible in one of the dictionaries in <a href="_dictionary__Path.html" title="">dictionaryPath</a>, or, a new global symbol with that name, created in the first mutable dictionary in <a href="_dictionary__Path.html" title="">dictionaryPath</a>.</span></li> </ul> </div> </li> </ul> </div> <div class="single"><h2>Description</h2> <div><p>This function mimics what the interpreter does when it encounters and parses the name of a global symbol, and can be used when the name of the symbol is not known at the time the code is written.</p> <table class="examples"><tr><td><pre>i1 : x = "aaaa" o1 = aaaa</pre> </td></tr> <tr><td><pre>i2 : getSymbol x o2 = aaaa o2 : Symbol</pre> </td></tr> <tr><td><pre>i3 : dictionary oo o3 = User#"private dictionary" o3 : GlobalDictionary</pre> </td></tr> <tr><td><pre>i4 : ooo === getSymbol x o4 = true</pre> </td></tr> </table> </div> </div> <div class="single"><h2>See also</h2> <ul><li><span><a href="_get__Global__Symbol.html" title="create a global symbol in a global dictionary">getGlobalSymbol</a> -- create a global symbol in a global dictionary</span></li> </ul> </div> </div> </body> </html>