Sha256: c592691dd66e98b9b69b3d1557b498e55678f720bc2a0719e0ee38a8529918fb
Contents?: true
Size: 1.72 KB
Versions: 12
Compression:
Stored size: 1.72 KB
Contents
#include "prism/enc/pm_encoding.h"
static size_t
pm_encoding_gbk_char_width(const uint8_t *b, ptrdiff_t n) {
// These are the single byte characters.
if (*b < 0x80) {
return 1;
}
// These are the double byte characters.
if (
(n > 1) &&
(
((b[0] >= 0xA1 && b[0] <= 0xA9) && (b[1] >= 0xA1 && b[1] <= 0xFE)) || // GBK/1
((b[0] >= 0xB0 && b[0] <= 0xF7) && (b[1] >= 0xA1 && b[1] <= 0xFE)) || // GBK/2
((b[0] >= 0x81 && b[0] <= 0xA0) && (b[1] >= 0x40 && b[1] <= 0xFE) && (b[1] != 0x7F)) || // GBK/3
((b[0] >= 0xAA && b[0] <= 0xFE) && (b[1] >= 0x40 && b[1] <= 0xA0) && (b[1] != 0x7F)) || // GBK/4
((b[0] >= 0xA8 && b[0] <= 0xA9) && (b[1] >= 0x40 && b[1] <= 0xA0) && (b[1] != 0x7F)) // GBK/5
)
) {
return 2;
}
return 0;
}
static size_t
pm_encoding_gbk_alpha_char(const uint8_t *b, ptrdiff_t n) {
if (pm_encoding_gbk_char_width(b, n) == 1) {
return pm_encoding_ascii_alpha_char(b, n);
} else {
return 0;
}
}
static size_t
pm_encoding_gbk_alnum_char(const uint8_t *b, ptrdiff_t n) {
if (pm_encoding_gbk_char_width(b, n) == 1) {
return pm_encoding_ascii_alnum_char(b, n);
} else {
return 0;
}
}
static bool
pm_encoding_gbk_isupper_char(const uint8_t *b, ptrdiff_t n) {
if (pm_encoding_gbk_char_width(b, n) == 1) {
return pm_encoding_ascii_isupper_char(b, n);
} else {
return false;
}
}
pm_encoding_t pm_encoding_gbk = {
.name = "gbk",
.char_width = pm_encoding_gbk_char_width,
.alnum_char = pm_encoding_gbk_alnum_char,
.alpha_char = pm_encoding_gbk_alpha_char,
.isupper_char = pm_encoding_gbk_isupper_char,
.multibyte = true
};
Version data entries
12 entries across 12 versions & 3 rubygems