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<refentry id="refbufapp">
<refmeta>
<refentrytitle>ne_buffer_append</refentrytitle>
<manvolnum>3</manvolnum>
</refmeta>
<refnamediv>
<refname id="ne_buffer_append">ne_buffer_append</refname>
<refname id="ne_buffer_zappend">ne_buffer_zappend</refname>
<refname id="ne_buffer_concat">ne_buffer_concat</refname>
<refpurpose>append data to a string buffer</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcsynopsisinfo>#include <ne_string.h></funcsynopsisinfo>
<funcprototype>
<funcdef>void <function>ne_buffer_append</function></funcdef>
<paramdef>ne_buffer *<parameter>buf</parameter></paramdef>
<paramdef>const char *<parameter>string</parameter></paramdef>
<paramdef>size_t <parameter>len</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>void <function>ne_buffer_zappend</function></funcdef>
<paramdef>ne_buffer *<parameter>buf</parameter></paramdef>
<paramdef>const char *<parameter>string</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>void <function>ne_buffer_concat</function></funcdef>
<paramdef>ne_buffer *<parameter>buf</parameter></paramdef>
<paramdef>const char *<parameter>str</parameter></paramdef>
<paramdef>...</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>The <function>ne_buffer_append</function> and
<function>ne_buffer_zappend</function> functions append a string to
the end of a buffer; extending the buffer as necessary. The
<parameter>len</parameter> passed to
<function>ne_buffer_append</function> specifies the length of the
string to append; there must be no &nul; terminator in the first
<parameter>len</parameter> bytes of the string.
<function>ne_buffer_zappend</function> must be passed a
&nul;-terminated string.</para>
<para>The <function>ne_buffer_concat</function> function takes
a variable-length argument list following <parameter>str</parameter>;
each argument must be a <type>char *</type> pointer to a
&nul;-terminated string. A &null; pointer must be given as the last
argument to mark the end of the list. The strings (including
<parameter>str</parameter>) are appended to the buffer in the order
given. None of the strings passed to
<function>ne_buffer_concat</function> are modified.</para>
</refsect1>
<refsect1>
<title>Examples</title>
<para>The following code will output "<literal>Hello, world.
And goodbye.</literal>".</para>
<programlisting>ne_buffer *buf = ne_buffer_create();
ne_buffer_zappend(buf, "Hello");
ne_buffer_concat(buf, ", world. ", "And ", "goodbye.", NULL);
puts(buf->data);
ne_buffer_destroy(buf);</programlisting>
</refsect1>
<refsect1>
<title>See also</title>
<para><xref linkend="ne_buffer"/>, <xref linkend="ne_buffer_create"/>,
<xref linkend="ne_buffer_destroy"/></para>
</refsect1>
</refentry>
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