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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>The Form Broker</title><link rel="stylesheet" type="text/css" href="rivet.css"><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><link rel="home" href="index.html" title="Apache Rivet 3.2"><link rel="up" href="index.html" title="Apache Rivet 3.2"><link rel="prev" href="toglyphs.html" title="toGlyphs"><link rel="next" href="fb.html" title="FormBroker"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">The Form Broker</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="toglyphs.html"><img src="images/prev.png" alt="Prev"></a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="fb.html"><img src="images/next.png" alt="Next"></a></td></tr></table></div><div class="section"><div class="titlepage"><div><div><hr><h2 class="title" style="clear: both"><a name="formbroker"></a>The Form Broker</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="idm4248"></a>Introduction</h3></div></div></div><p style="width:90%">
The <span style="font-family:monospace"><span class="command"><strong>FormBroker</strong></span></span> package creates instances of
form data description objects. These objects instances have
a simple set of methods to validate and control data
as typically posted by HTML forms,
thus data represented as the map of form variables
to their values. In Rivet this association can be obtained either
calling <a class="xref" href="load_response.html" title="load_response">load_response</a> or
<a class="xref" href="var.html" title="var">var, </a> (form variables can be selectively
read also calling <span style="font-family:monospace"><span class="command"><strong>::rivet::var_post</strong></span></span> or
<span style="font-family:monospace"><span class="command"><strong>::rivet::var_qs</strong></span></span>)
</p><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Note"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/note.png"></td><th align="left">Note</th></tr><tr><td align="left" valign="top">
The <span style="font-family:monospace"><span class="command"><strong>FormBroker</strong></span></span> package is still experimental.
Basic functionalities and interface are not likely to change but
internal details and implementation could be redesigned
in future releases. More specifically the external validator mechanism
will likely need design improvements.
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