ejopen.htm

来自「goahead是linux下的轻量级web服务器」· HTM 代码 · 共 71 行

HTM
71 行
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<html>
<head>
<title>ejOpen -- GoAhead Embedded JavaScript</title>
<link rel="stylesheet" href="../../style/doc.htm" type="text/css">
</head>

<body>
 
<TABLE border=0 width=100% cellspacing=0 cellpadding=0>
<TR>
	<TD class=title-left>ejOpen</TD>
    <TD class=title-center><b>GoAhead JavaScript API</b></TD>
    <TD class=title-right><B>GoAhead EMF</B></TD>
</TR>
</TABLE>

<HR>

<h2>Synopsis</h2>
<p>Open a JavaScript interpreter session.</p>

<h2>Prototype</h2>

<pre>
#include &quot;ej.h&quot;

int <b>ejOpen</b>(sym_fd_t variables, sym_fd_t functions);
</pre>

<h2>Parameters</h2>
<p><table width=90%>
    
    <TR>
        <TD width=40>variables
        <TD> Symbol table for variables
    <TR>
        <TD width=40>functions
        <TD>Symbol table for functions</TR></table></p>

<h2>Description</h2>

<P>To use JavaScript, you must first open an interpreter session 
with <i>ejOpen</i>. JavaScript interpreters usually have their own
variable and global function name space. To share variable or function
name space, pass a symbol table into <b>ejOpen</b> in the <i>variable</i>
or <i>function</i> parameters. If either of these parameters are set
to NULL, the symbol table will be created automatically.</P>
<p>Use <b>ejClose</b> to close the interpreter when finished.
 

<h2>Return Value</h2>
<p>Handle for the JavaScript interpreter.</p>

<h2>Example</h2>
<pre>
if (ejOpen(NULL, NULL)< 0) {
    /* Cant open interpreter */
    return -1;
}
</pre>
<h2>See Also</h2>
<p>
<A href="../ws/ejscript.htm">JavaScript</A>,&nbsp; 
<A href="../ws/asp.htm">Active Server Pages</A>
<A href="ejClose.htm">ejClose</A>
<A href="ejEval.htm">ejEval</A>
</p>

</body>
</html>

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