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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.unicode-set-error-mode">
<refnamediv>
<refname>unicode_set_error_mode</refname>
<refpurpose>Set the error mode for strings conversions</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>unicode_set_error_mode</methodname>
<methodparam><type>int</type><parameter>direction</parameter></methodparam>
<methodparam><type>int</type><parameter>mode</parameter></methodparam>
</methodsynopsis>
<para>
This function sets the error mode for string conversions between different
encodings. An error can occur during conversion when an illegal character
is encountered or if a character cannot be represented into the new encoding.
By default, when an error is encountered, the conversion stops.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>direction</parameter></term>
<listitem>
<para>
The <parameter>direction</parameter> sets the conversion direction to
which the error mode will apply. This can either be
<constant>FROM_UNICODE</constant>, which will set the error mode for
conversions from a <type>unicode</type> string to a binary string
or <constant>TO_UNICODE</constant>, which will set the error mode
for conversions from a binary string to a <type>unicode</type> string.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>mode</parameter></term>
<listitem>
<para>
<parameter>mode</parameter> determines how the conversion errors are
handled. It should be one of the following constants:
</para>
<para>
<table>
<title>Available modes</title>
<tgroup cols="2">
<thead>
<row>
<entry>Mode</entry>
<entry>Description</entry>
</row>
</thead>
<tbody>
<row>
<entry>
<constant>U_CONV_ERROR_STOP</constant>
</entry>
<entry>
Stop the conversion. This is the default mode.
</entry>
</row>
<row>
<entry>
<constant>U_CONV_ERROR_SKIP</constant>
</entry>
<entry>
Skip the character.
</entry>
</row>
<row>
<entry>
<constant>U_CONV_ERROR_SUBST</constant>
</entry>
<entry>
Substitute the character. The substituting character can be set with
<function>unicode_set_subst_char</function>.
</entry>
</row>
<row>
<entry>
<constant>U_CONV_ERROR_ESCAPE_UNICODE</constant>
</entry>
<entry>
Escape the faulty bytes and represent them in the Unicode character
format.
</entry>
</row>
<row>
<entry>
<constant>U_CONV_ERROR_ESCAPE_ICU</constant>
</entry>
<entry>
Escape the faulty bytes and represent them in the ICU character
format.
</entry>
</row>
<row>
<entry>
<constant>U_CONV_ERROR_ESCAPE_JAVA</constant>
</entry>
<entry>
Escape the faulty bytes and print them in the Java character
format.
</entry>
</row>
<row>
<entry>
<constant>U_CONV_ERROR_ESCAPE_XML_DEC</constant>
</entry>
<entry>
Escape the faulty bytes and represent them in decimal format.
</entry>
</row>
<row>
<entry>
<constant>U_CONV_ERROR_ESCAPE_XML_HEX</constant>
</entry>
<entry>
Escape the faulty bytes and represent them in hexadecimal
format.
</entry>
</row>
</tbody>
</tgroup>
</table>
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
<refsect1 role="errors">
&reftitle.errors;
<para>
Emits a <constant>E_WARNING</constant> level error if the direction or the
mode are invalid.
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
&warn.experimental.func;
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>unicode_encode</function></member>
<member><function>unicode_decode</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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