utf32.c File Reference

#include <rz_types.h>
#include <rz_util.h>

Go to the source code of this file.

Functions
RZ_API int	rz_utf32_decode (const ut8 *ptr, int ptrlen, RzRune *ch, bool bigendian)
RZ_API int	rz_utf32le_decode (const ut8 *ptr, int ptrlen, RzRune *ch)
RZ_API int	rz_utf32be_decode (const ut8 *ptr, int ptrlen, RzRune *ch)

Function Documentation

rz_utf32_decode()

RZ_API int rz_utf32_decode	(	const ut8 *	ptr,
		int	ptrlen,
		RzRune *	ch,
		bool	bigendian
	)

Definition at line 8 of file utf32.c.

                                                                                   {
    if (ptrlen < 1) {
        return 0;
    }
    int low = 0;
    int high = 3;
    if (bigendian) {
        low = 3;
        high = 0;
    }
    if (ptrlen > 3) {
        int sign = bigendian ? -1 : 1;
        if (ch) {
            int i;
            *ch = (ut32)ptr[low];
            for (i = 1; i < 4; i++) {
                *ch |= (ut32)ptr[3 - high + i * sign] << 8 * i;
            }
        }
        if (ptr[high] || ptr[high - 1 * sign]) {
            return 4;
        }
        if (ptr[low + 1 * sign]) {
            return 2;
        }
        return 1;
    }
    return 0;
}

References i.

Referenced by rz_str_escape_utf(), rz_utf32be_decode(), and rz_utf32le_decode().

rz_utf32be_decode()

RZ_API int rz_utf32be_decode	(	const ut8 *	ptr,
		int	ptrlen,
		RzRune *	ch
	)

Definition at line 44 of file utf32.c.

                                                                     {
    return rz_utf32_decode(ptr, ptrlen, ch, true);
}

References rz_utf32_decode().

Referenced by process_one_string(), and rz_str_stringify_raw_buffer().

rz_utf32le_decode()

RZ_API int rz_utf32le_decode	(	const ut8 *	ptr,
		int	ptrlen,
		RzRune *	ch
	)

Definition at line 39 of file utf32.c.

                                                                     {
    return rz_utf32_decode(ptr, ptrlen, ch, false);
}

References rz_utf32_decode().

Referenced by ds_esc_str(), process_one_string(), and rz_str_stringify_raw_buffer().