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<?xml version="1.0" encoding="ISO-8859-1"?>
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- under the terms of the GNU General Public License as published by the
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-->
<refentry id="fn_sprintf_inverse">
<refmeta>
<refentrytitle>sprintf_inverse</refentrytitle>
<refmiscinfo>string</refmiscinfo>
</refmeta>
<refnamediv>
<refname>sprintf_inverse</refname>
<refpurpose>returns vector on a specified pattern.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_sprintf_inverse">
<funcprototype id="fproto_sprintf_inverse">
<funcdef><function>sprintf_inverse</function></funcdef>
<paramdef><parameter>strg</parameter> string</paramdef>
<paramdef><parameter>format</parameter> string</paramdef>
<paramdef><parameter>err</parameter> integer</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc"><title>Description</title>
<para>sprintf_inverse gets a string to parse, a format string and an integer (0,1 or 2)
that indicates error recovery method. If the first argument matches the format string then it
returns vector of the pattern values.
</para>
</refsect1>
<refsect1 id="params_sprintf_inverse">
<title>Parameters</title>
<refsect2><title>strg</title>
<para>a string to parse</para>
</refsect2>
<refsect2><title>format</title>
<para>a format string</para>
</refsect2>
<refsect2><title>err</title>
<para>indicates the error recovery method in case the string does not match to the format:
0 - to return NULL,
1 - to return shorter vector that consists of all values extracted before the mismatch has been detected,
2 - to return vector of expected length with NULLs instead of values that were not found due to mismatch
</para>
</refsect2>
</refsect1>
<refsect1 id="examples_sprintf_inverse">
<title>Examples</title>
<example id="ex_sprintf_inverse"><title>Example 1</title>
<screen><![CDATA[
SQL> select sprintf_inverse ('qwe123asd456zxcABRACADABRA', 'qwe%dasd%dzxc%s', 2);
callret
VARCHAR
_______________________________________________________________________________
vector(123,456,0x00adfae8)
1 Rows. -- 0 msec.
SQL>
]]></screen>
</example>
<example id="ex_sprintf_inverse"><title>Example 2</title>
<screen><![CDATA[
SQL> select sprintf_inverse ('---123', '%-R', 2);
callret
VARCHAR
_______________________________________________________________________________
vector(0x00b070e8)
1 Rows. -- 0 msec.
SQL>
]]></screen>
</example>
</refsect1>
</refentry>
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