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<title>Filter Mode Interface - avram - a virtual machine code interpreter</title>
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<h3 class="section">2.5 Filter Mode Interface</h3>

<p><a name="index-filter-mode-171"></a><a name="index-parameter-mode-172"></a><a name="index-modes-173"></a>From the point of view of the application developer or compiler writer,
there are parameter mode applications, which are discussed in
<a href="Parameter-Mode-Interface.html#Parameter-Mode-Interface">Parameter Mode Interface</a>, and filter mode applications,
which are discussed in this section. Of the latter, there are mainly
three kinds: those that read one character at a time, those that read a
line at a time, and those that read the whole standard input file at
<a name="index-standard-input-174"></a>once. Each of them is invoked with different options and expected to
follow different calling conventions. This section summarizes these
conventions.

<ul class="menu">
<li><a accesskey="1" href="Loading-All-of-Standard-Input-at-Once.html#Loading-All-of-Standard-Input-at-Once">Loading All of Standard Input at Once</a>
<li><a accesskey="2" href="Line-Maps.html#Line-Maps">Line Maps</a>
<li><a accesskey="3" href="Byte-Transducers.html#Byte-Transducers">Byte Transducers</a>
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