/***************************************************************
  MPU-CTYPE.C

       Strict UCS-2 character classification functions.

       PART OF : MPUIO - library .

       NOTE    : Classification is deterministic and does not
                 depend on the process locale.  Surrogate code
                 units U+D800..U+DFFF are never classified.

       Copyright (C) 2000 - 2026  by Andrey V.Kosteltsev.
       All Rights Reserved.
 ***************************************************************/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <libmpuio.h>
#include <mpu-symbols.h>
#include <mpu-ctype.h>


static int
__mpu_ucs2_has_property( __mpu_char16_t c, unsigned char property )
{
  if( c >= 0xd800U && c <= 0xdfffU ) return( 0 );

  return( (__mpu_ucs2_ctype[(unsigned)c] & property) != 0 );
}


int
mpu_ucs2_isalpha( __mpu_char16_t c )
{
  return( __mpu_ucs2_has_property( c, __MPU_UCS2_ALPHA ) );
}


int
mpu_ucs2_isupper( __mpu_char16_t c )
{
  return( __mpu_ucs2_has_property( c, __MPU_UCS2_UPPER ) );
}


int
mpu_ucs2_islower( __mpu_char16_t c )
{
  return( __mpu_ucs2_has_property( c, __MPU_UCS2_LOWER ) );
}


int
mpu_ucs2_isdigit( __mpu_char16_t c )
{
  return( __mpu_ucs2_has_property( c, __MPU_UCS2_DIGIT ) );
}


int
mpu_ucs2_is_xid_start( __mpu_char16_t c )
{
  return( __mpu_ucs2_has_property( c, __MPU_UCS2_XID_START ) );
}


int
mpu_ucs2_is_xid_continue( __mpu_char16_t c )
{
  return( __mpu_ucs2_has_property( c, __MPU_UCS2_XID_CONTINUE ) );
}