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<title>pcre2_set_substitute_case_callout specification</title>
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<h1>pcre2_set_substitute_case_callout man page</h1>
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<br><b>
SYNOPSIS
</b><br>
<P>
<b>#include &#60;pcre2.h&#62;</b>
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<P>
<b>int pcre2_set_substitute_case_callout(pcre2_match_context *<i>mcontext</i>,</b>
<b>  PCRE2_SIZE (*<i>callout_function</i>)(PCRE2_SPTR, PCRE2_SIZE,</b>
<b>                                 PCRE2_UCHAR *, PCRE2_SIZE,</b>
<b>                                 int, void *),</b>
<b>  void *<i>callout_data</i>);</b>
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<br><b>
DESCRIPTION
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<P>
This function sets the substitute case callout fields in a match context (the
first argument). The second argument specifies a callout function, and the third
argument is an opaque data item that is passed to it. The result of this
function is always zero.
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