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PCRE_UTF3...BYTE_ORDER(3)  Library Functions Manual  PCRE_UTF3...BYTE_ORDER(3)

NAME
       PCRE - Perl-compatible regular expressions

SYNOPSIS
       #include	<pcre.h>

       int pcre32_utf32_to_host_byte_order(PCRE_UCHAR32	*output,
	    PCRE_SPTR32	input, int length, int *host_byte_order,
	    int	keep_boms);

DESCRIPTION
       This  function,	which  exists  only  in	the 32-bit library, converts a
       UTF-32 string to	the correct order for the current host,	taking account
       of any byte order marks (BOMs) within the string. Its arguments are:

	 output		  pointer to output buffer, may	be the same as input
	 input		  pointer to input buffer
	 length		  number of 32-bit units in the	input, or negative for
			    a zero-terminated string
	 host_byte_order  a NULL value or a non-zero value pointed to means
			    start in host byte order
	 keep_boms	  if non-zero, BOMs are	copied to the output string

       The result of the function is the number	of 32-bit  units  placed  into
       the  output  buffer,  including	the  zero terminator if	the string was
       zero-terminated.

       If host_byte_order is not NULL, it is set to indicate  the  byte	 order
       that is current at the end of the string.

       There  is  a complete description of the	PCRE native API	in the pcreapi
       page and	a description of the POSIX API in the pcreposix	page.

PCRE 8.30			 24 June 2012	     PCRE_UTF3...BYTE_ORDER(3)

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<https://man.freebsd.org/cgi/man.cgi?query=pcre32_utf32_to_host_byte_order&sektion=3&manpath=FreeBSD+Ports+14.3.quarterly>

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