1508 lines
44 KiB
C
1508 lines
44 KiB
C
/*
|
|
* Unicode utilities
|
|
*
|
|
* Copyright (c) 2017-2018 Fabrice Bellard
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
#include "cutils.h"
|
|
#include "libunicode.h"
|
|
#include "libunicode-table.h"
|
|
|
|
enum {
|
|
RUN_TYPE_U,
|
|
RUN_TYPE_L,
|
|
RUN_TYPE_UF,
|
|
RUN_TYPE_LF,
|
|
RUN_TYPE_UL,
|
|
RUN_TYPE_LSU,
|
|
RUN_TYPE_U2L_399_EXT2,
|
|
RUN_TYPE_UF_D20,
|
|
RUN_TYPE_UF_D1_EXT,
|
|
RUN_TYPE_U_EXT,
|
|
RUN_TYPE_LF_EXT,
|
|
RUN_TYPE_U_EXT2,
|
|
RUN_TYPE_L_EXT2,
|
|
RUN_TYPE_U_EXT3,
|
|
};
|
|
|
|
/* conv_type:
|
|
0 = to upper
|
|
1 = to lower
|
|
2 = case folding (= to lower with modifications)
|
|
*/
|
|
int lre_case_conv(uint32_t *res, uint32_t c, int conv_type)
|
|
{
|
|
if (c < 128) {
|
|
if (conv_type) {
|
|
if (c >= 'A' && c <= 'Z') {
|
|
c = c - 'A' + 'a';
|
|
}
|
|
} else {
|
|
if (c >= 'a' && c <= 'z') {
|
|
c = c - 'a' + 'A';
|
|
}
|
|
}
|
|
} else {
|
|
uint32_t v, code, data, type, len, a, is_lower;
|
|
int idx, idx_min, idx_max;
|
|
|
|
is_lower = (conv_type != 0);
|
|
idx_min = 0;
|
|
idx_max = countof(case_conv_table1) - 1;
|
|
while (idx_min <= idx_max) {
|
|
idx = (unsigned)(idx_max + idx_min) / 2;
|
|
v = case_conv_table1[idx];
|
|
code = v >> (32 - 17);
|
|
len = (v >> (32 - 17 - 7)) & 0x7f;
|
|
if (c < code) {
|
|
idx_max = idx - 1;
|
|
} else if (c >= code + len) {
|
|
idx_min = idx + 1;
|
|
} else {
|
|
type = (v >> (32 - 17 - 7 - 4)) & 0xf;
|
|
data = ((v & 0xf) << 8) | case_conv_table2[idx];
|
|
switch(type) {
|
|
case RUN_TYPE_U:
|
|
case RUN_TYPE_L:
|
|
case RUN_TYPE_UF:
|
|
case RUN_TYPE_LF:
|
|
if (conv_type == (type & 1) ||
|
|
(type >= RUN_TYPE_UF && conv_type == 2)) {
|
|
c = c - code + (case_conv_table1[data] >> (32 - 17));
|
|
}
|
|
break;
|
|
case RUN_TYPE_UL:
|
|
a = c - code;
|
|
if ((a & 1) != (1 - is_lower))
|
|
break;
|
|
c = (a ^ 1) + code;
|
|
break;
|
|
case RUN_TYPE_LSU:
|
|
a = c - code;
|
|
if (a == 1) {
|
|
c += 2 * is_lower - 1;
|
|
} else if (a == (1 - is_lower) * 2) {
|
|
c += (2 * is_lower - 1) * 2;
|
|
}
|
|
break;
|
|
case RUN_TYPE_U2L_399_EXT2:
|
|
if (!is_lower) {
|
|
res[0] = c - code + case_conv_ext[data >> 6];
|
|
res[1] = 0x399;
|
|
return 2;
|
|
} else {
|
|
c = c - code + case_conv_ext[data & 0x3f];
|
|
}
|
|
break;
|
|
case RUN_TYPE_UF_D20:
|
|
if (conv_type == 1)
|
|
break;
|
|
c = data + (conv_type == 2) * 0x20;
|
|
break;
|
|
case RUN_TYPE_UF_D1_EXT:
|
|
if (conv_type == 1)
|
|
break;
|
|
c = case_conv_ext[data] + (conv_type == 2);
|
|
break;
|
|
case RUN_TYPE_U_EXT:
|
|
case RUN_TYPE_LF_EXT:
|
|
if (is_lower != (type - RUN_TYPE_U_EXT))
|
|
break;
|
|
c = case_conv_ext[data];
|
|
break;
|
|
case RUN_TYPE_U_EXT2:
|
|
case RUN_TYPE_L_EXT2:
|
|
if (conv_type != (type - RUN_TYPE_U_EXT2))
|
|
break;
|
|
res[0] = c - code + case_conv_ext[data >> 6];
|
|
res[1] = case_conv_ext[data & 0x3f];
|
|
return 2;
|
|
default:
|
|
case RUN_TYPE_U_EXT3:
|
|
if (conv_type != 0)
|
|
break;
|
|
res[0] = case_conv_ext[data >> 8];
|
|
res[1] = case_conv_ext[(data >> 4) & 0xf];
|
|
res[2] = case_conv_ext[data & 0xf];
|
|
return 3;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
res[0] = c;
|
|
return 1;
|
|
}
|
|
|
|
static uint32_t get_le24(const uint8_t *ptr)
|
|
{
|
|
return ptr[0] | (ptr[1] << 8) | (ptr[2] << 16);
|
|
}
|
|
|
|
#define UNICODE_INDEX_BLOCK_LEN 32
|
|
|
|
/* return -1 if not in table, otherwise the offset in the block */
|
|
static int get_index_pos(uint32_t *pcode, uint32_t c,
|
|
const uint8_t *index_table, int index_table_len)
|
|
{
|
|
uint32_t code, v;
|
|
int idx_min, idx_max, idx;
|
|
|
|
idx_min = 0;
|
|
v = get_le24(index_table);
|
|
code = v & ((1 << 21) - 1);
|
|
if (c < code) {
|
|
*pcode = 0;
|
|
return 0;
|
|
}
|
|
idx_max = index_table_len - 1;
|
|
code = get_le24(index_table + idx_max * 3);
|
|
if (c >= code)
|
|
return -1;
|
|
/* invariant: tab[idx_min] <= c < tab2[idx_max] */
|
|
while ((idx_max - idx_min) > 1) {
|
|
idx = (idx_max + idx_min) / 2;
|
|
v = get_le24(index_table + idx * 3);
|
|
code = v & ((1 << 21) - 1);
|
|
if (c < code) {
|
|
idx_max = idx;
|
|
} else {
|
|
idx_min = idx;
|
|
}
|
|
}
|
|
v = get_le24(index_table + idx_min * 3);
|
|
*pcode = v & ((1 << 21) - 1);
|
|
return (idx_min + 1) * UNICODE_INDEX_BLOCK_LEN + (v >> 21);
|
|
}
|
|
|
|
static BOOL lre_is_in_table(uint32_t c, const uint8_t *table,
|
|
const uint8_t *index_table, int index_table_len)
|
|
{
|
|
uint32_t code, b, bit;
|
|
int pos;
|
|
const uint8_t *p;
|
|
|
|
pos = get_index_pos(&code, c, index_table, index_table_len);
|
|
if (pos < 0)
|
|
return FALSE; /* outside the table */
|
|
p = table + pos;
|
|
bit = 0;
|
|
for(;;) {
|
|
b = *p++;
|
|
if (b < 64) {
|
|
code += (b >> 3) + 1;
|
|
if (c < code)
|
|
return bit;
|
|
bit ^= 1;
|
|
code += (b & 7) + 1;
|
|
} else if (b >= 0x80) {
|
|
code += b - 0x80 + 1;
|
|
} else if (b < 0x60) {
|
|
code += (((b - 0x40) << 8) | p[0]) + 1;
|
|
p++;
|
|
} else {
|
|
code += (((b - 0x60) << 16) | (p[0] << 8) | p[1]) + 1;
|
|
p += 2;
|
|
}
|
|
if (c < code)
|
|
return bit;
|
|
bit ^= 1;
|
|
}
|
|
}
|
|
|
|
BOOL lre_is_cased(uint32_t c)
|
|
{
|
|
uint32_t v, code, len;
|
|
int idx, idx_min, idx_max;
|
|
|
|
idx_min = 0;
|
|
idx_max = countof(case_conv_table1) - 1;
|
|
while (idx_min <= idx_max) {
|
|
idx = (unsigned)(idx_max + idx_min) / 2;
|
|
v = case_conv_table1[idx];
|
|
code = v >> (32 - 17);
|
|
len = (v >> (32 - 17 - 7)) & 0x7f;
|
|
if (c < code) {
|
|
idx_max = idx - 1;
|
|
} else if (c >= code + len) {
|
|
idx_min = idx + 1;
|
|
} else {
|
|
return TRUE;
|
|
}
|
|
}
|
|
return lre_is_in_table(c, unicode_prop_Cased1_table,
|
|
unicode_prop_Cased1_index,
|
|
sizeof(unicode_prop_Cased1_index) / 3);
|
|
}
|
|
|
|
BOOL lre_is_case_ignorable(uint32_t c)
|
|
{
|
|
return lre_is_in_table(c, unicode_prop_Case_Ignorable_table,
|
|
unicode_prop_Case_Ignorable_index,
|
|
sizeof(unicode_prop_Case_Ignorable_index) / 3);
|
|
}
|
|
|
|
/* character range */
|
|
|
|
static __maybe_unused void cr_dump(CharRange *cr)
|
|
{
|
|
int i;
|
|
for(i = 0; i < cr->len; i++)
|
|
printf("%d: 0x%04x\n", i, cr->points[i]);
|
|
}
|
|
|
|
static void *cr_default_realloc(void *opaque, void *ptr, size_t size)
|
|
{
|
|
return realloc(ptr, size);
|
|
}
|
|
|
|
void cr_init(CharRange *cr, void *mem_opaque, DynBufReallocFunc *realloc_func)
|
|
{
|
|
cr->len = cr->size = 0;
|
|
cr->points = NULL;
|
|
cr->mem_opaque = mem_opaque;
|
|
cr->realloc_func = realloc_func ? realloc_func : cr_default_realloc;
|
|
}
|
|
|
|
void cr_free(CharRange *cr)
|
|
{
|
|
cr->realloc_func(cr->mem_opaque, cr->points, 0);
|
|
}
|
|
|
|
int cr_realloc(CharRange *cr, int size)
|
|
{
|
|
int new_size;
|
|
uint32_t *new_buf;
|
|
|
|
if (size > cr->size) {
|
|
new_size = max_int(size, cr->size * 3 / 2);
|
|
new_buf = cr->realloc_func(cr->mem_opaque, cr->points,
|
|
new_size * sizeof(cr->points[0]));
|
|
if (!new_buf)
|
|
return -1;
|
|
cr->points = new_buf;
|
|
cr->size = new_size;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int cr_copy(CharRange *cr, const CharRange *cr1)
|
|
{
|
|
if (cr_realloc(cr, cr1->len))
|
|
return -1;
|
|
memcpy(cr->points, cr1->points, sizeof(cr->points[0]) * cr1->len);
|
|
cr->len = cr1->len;
|
|
return 0;
|
|
}
|
|
|
|
/* merge consecutive intervals and remove empty intervals */
|
|
static void cr_compress(CharRange *cr)
|
|
{
|
|
int i, j, k, len;
|
|
uint32_t *pt;
|
|
|
|
pt = cr->points;
|
|
len = cr->len;
|
|
i = 0;
|
|
j = 0;
|
|
k = 0;
|
|
while ((i + 1) < len) {
|
|
if (pt[i] == pt[i + 1]) {
|
|
/* empty interval */
|
|
i += 2;
|
|
} else {
|
|
j = i;
|
|
while ((j + 3) < len && pt[j + 1] == pt[j + 2])
|
|
j += 2;
|
|
/* just copy */
|
|
pt[k] = pt[i];
|
|
pt[k + 1] = pt[j + 1];
|
|
k += 2;
|
|
i = j + 2;
|
|
}
|
|
}
|
|
cr->len = k;
|
|
}
|
|
|
|
/* union or intersection */
|
|
int cr_op(CharRange *cr, const uint32_t *a_pt, int a_len,
|
|
const uint32_t *b_pt, int b_len, int op)
|
|
{
|
|
int a_idx, b_idx, is_in;
|
|
uint32_t v;
|
|
|
|
a_idx = 0;
|
|
b_idx = 0;
|
|
for(;;) {
|
|
/* get one more point from a or b in increasing order */
|
|
if (a_idx < a_len && b_idx < b_len) {
|
|
if (a_pt[a_idx] < b_pt[b_idx]) {
|
|
goto a_add;
|
|
} else if (a_pt[a_idx] == b_pt[b_idx]) {
|
|
v = a_pt[a_idx];
|
|
a_idx++;
|
|
b_idx++;
|
|
} else {
|
|
goto b_add;
|
|
}
|
|
} else if (a_idx < a_len) {
|
|
a_add:
|
|
v = a_pt[a_idx++];
|
|
} else if (b_idx < b_len) {
|
|
b_add:
|
|
v = b_pt[b_idx++];
|
|
} else {
|
|
break;
|
|
}
|
|
/* add the point if the in/out status changes */
|
|
switch(op) {
|
|
case CR_OP_UNION:
|
|
is_in = (a_idx & 1) | (b_idx & 1);
|
|
break;
|
|
case CR_OP_INTER:
|
|
is_in = (a_idx & 1) & (b_idx & 1);
|
|
break;
|
|
case CR_OP_XOR:
|
|
is_in = (a_idx & 1) ^ (b_idx & 1);
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
if (is_in != (cr->len & 1)) {
|
|
if (cr_add_point(cr, v))
|
|
return -1;
|
|
}
|
|
}
|
|
cr_compress(cr);
|
|
return 0;
|
|
}
|
|
|
|
int cr_union1(CharRange *cr, const uint32_t *b_pt, int b_len)
|
|
{
|
|
CharRange a = *cr;
|
|
int ret;
|
|
cr->len = 0;
|
|
cr->size = 0;
|
|
cr->points = NULL;
|
|
ret = cr_op(cr, a.points, a.len, b_pt, b_len, CR_OP_UNION);
|
|
cr_free(&a);
|
|
return ret;
|
|
}
|
|
|
|
int cr_invert(CharRange *cr)
|
|
{
|
|
int len;
|
|
len = cr->len;
|
|
if (cr_realloc(cr, len + 2))
|
|
return -1;
|
|
memmove(cr->points + 1, cr->points, len * sizeof(cr->points[0]));
|
|
cr->points[0] = 0;
|
|
cr->points[len + 1] = UINT32_MAX;
|
|
cr->len = len + 2;
|
|
cr_compress(cr);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_ALL_UNICODE
|
|
|
|
BOOL lre_is_id_start(uint32_t c)
|
|
{
|
|
return lre_is_in_table(c, unicode_prop_ID_Start_table,
|
|
unicode_prop_ID_Start_index,
|
|
sizeof(unicode_prop_ID_Start_index) / 3);
|
|
}
|
|
|
|
BOOL lre_is_id_continue(uint32_t c)
|
|
{
|
|
return lre_is_id_start(c) ||
|
|
lre_is_in_table(c, unicode_prop_ID_Continue1_table,
|
|
unicode_prop_ID_Continue1_index,
|
|
sizeof(unicode_prop_ID_Continue1_index) / 3);
|
|
}
|
|
|
|
#define UNICODE_DECOMP_LEN_MAX 18
|
|
|
|
typedef enum {
|
|
DECOMP_TYPE_C1, /* 16 bit char */
|
|
DECOMP_TYPE_L1, /* 16 bit char table */
|
|
DECOMP_TYPE_L2,
|
|
DECOMP_TYPE_L3,
|
|
DECOMP_TYPE_L4,
|
|
DECOMP_TYPE_L5, /* XXX: not used */
|
|
DECOMP_TYPE_L6, /* XXX: could remove */
|
|
DECOMP_TYPE_L7, /* XXX: could remove */
|
|
DECOMP_TYPE_LL1, /* 18 bit char table */
|
|
DECOMP_TYPE_LL2,
|
|
DECOMP_TYPE_S1, /* 8 bit char table */
|
|
DECOMP_TYPE_S2,
|
|
DECOMP_TYPE_S3,
|
|
DECOMP_TYPE_S4,
|
|
DECOMP_TYPE_S5,
|
|
DECOMP_TYPE_I1, /* increment 16 bit char value */
|
|
DECOMP_TYPE_I2_0,
|
|
DECOMP_TYPE_I2_1,
|
|
DECOMP_TYPE_I3_1,
|
|
DECOMP_TYPE_I3_2,
|
|
DECOMP_TYPE_I4_1,
|
|
DECOMP_TYPE_I4_2,
|
|
DECOMP_TYPE_B1, /* 16 bit base + 8 bit offset */
|
|
DECOMP_TYPE_B2,
|
|
DECOMP_TYPE_B3,
|
|
DECOMP_TYPE_B4,
|
|
DECOMP_TYPE_B5,
|
|
DECOMP_TYPE_B6,
|
|
DECOMP_TYPE_B7,
|
|
DECOMP_TYPE_B8,
|
|
DECOMP_TYPE_B18,
|
|
DECOMP_TYPE_LS2,
|
|
DECOMP_TYPE_PAT3,
|
|
DECOMP_TYPE_S2_UL,
|
|
DECOMP_TYPE_LS2_UL,
|
|
} DecompTypeEnum;
|
|
|
|
static uint32_t unicode_get_short_code(uint32_t c)
|
|
{
|
|
static const uint16_t unicode_short_table[2] = { 0x2044, 0x2215 };
|
|
|
|
if (c < 0x80)
|
|
return c;
|
|
else if (c < 0x80 + 0x50)
|
|
return c - 0x80 + 0x300;
|
|
else
|
|
return unicode_short_table[c - 0x80 - 0x50];
|
|
}
|
|
|
|
static uint32_t unicode_get_lower_simple(uint32_t c)
|
|
{
|
|
if (c < 0x100 || (c >= 0x410 && c <= 0x42f))
|
|
c += 0x20;
|
|
else
|
|
c++;
|
|
return c;
|
|
}
|
|
|
|
static uint16_t unicode_get16(const uint8_t *p)
|
|
{
|
|
return p[0] | (p[1] << 8);
|
|
}
|
|
|
|
static int unicode_decomp_entry(uint32_t *res, uint32_t c,
|
|
int idx, uint32_t code, uint32_t len,
|
|
uint32_t type)
|
|
{
|
|
uint32_t c1;
|
|
int l, i, p;
|
|
const uint8_t *d;
|
|
|
|
if (type == DECOMP_TYPE_C1) {
|
|
res[0] = unicode_decomp_table2[idx];
|
|
return 1;
|
|
} else {
|
|
d = unicode_decomp_data + unicode_decomp_table2[idx];
|
|
switch(type) {
|
|
case DECOMP_TYPE_L1:
|
|
case DECOMP_TYPE_L2:
|
|
case DECOMP_TYPE_L3:
|
|
case DECOMP_TYPE_L4:
|
|
case DECOMP_TYPE_L5:
|
|
case DECOMP_TYPE_L6:
|
|
case DECOMP_TYPE_L7:
|
|
l = type - DECOMP_TYPE_L1 + 1;
|
|
d += (c - code) * l * 2;
|
|
for(i = 0; i < l; i++) {
|
|
if ((res[i] = unicode_get16(d + 2 * i)) == 0)
|
|
return 0;
|
|
}
|
|
return l;
|
|
case DECOMP_TYPE_LL1:
|
|
case DECOMP_TYPE_LL2:
|
|
{
|
|
uint32_t k, p;
|
|
l = type - DECOMP_TYPE_LL1 + 1;
|
|
k = (c - code) * l;
|
|
p = len * l * 2;
|
|
for(i = 0; i < l; i++) {
|
|
c1 = unicode_get16(d + 2 * k) |
|
|
(((d[p + (k / 4)] >> ((k % 4) * 2)) & 3) << 16);
|
|
if (!c1)
|
|
return 0;
|
|
res[i] = c1;
|
|
k++;
|
|
}
|
|
}
|
|
return l;
|
|
case DECOMP_TYPE_S1:
|
|
case DECOMP_TYPE_S2:
|
|
case DECOMP_TYPE_S3:
|
|
case DECOMP_TYPE_S4:
|
|
case DECOMP_TYPE_S5:
|
|
l = type - DECOMP_TYPE_S1 + 1;
|
|
d += (c - code) * l;
|
|
for(i = 0; i < l; i++) {
|
|
if ((res[i] = unicode_get_short_code(d[i])) == 0)
|
|
return 0;
|
|
}
|
|
return l;
|
|
case DECOMP_TYPE_I1:
|
|
l = 1;
|
|
p = 0;
|
|
goto decomp_type_i;
|
|
case DECOMP_TYPE_I2_0:
|
|
case DECOMP_TYPE_I2_1:
|
|
case DECOMP_TYPE_I3_1:
|
|
case DECOMP_TYPE_I3_2:
|
|
case DECOMP_TYPE_I4_1:
|
|
case DECOMP_TYPE_I4_2:
|
|
l = 2 + ((type - DECOMP_TYPE_I2_0) >> 1);
|
|
p = ((type - DECOMP_TYPE_I2_0) & 1) + (l > 2);
|
|
decomp_type_i:
|
|
for(i = 0; i < l; i++) {
|
|
c1 = unicode_get16(d + 2 * i);
|
|
if (i == p)
|
|
c1 += c - code;
|
|
res[i] = c1;
|
|
}
|
|
return l;
|
|
case DECOMP_TYPE_B18:
|
|
l = 18;
|
|
goto decomp_type_b;
|
|
case DECOMP_TYPE_B1:
|
|
case DECOMP_TYPE_B2:
|
|
case DECOMP_TYPE_B3:
|
|
case DECOMP_TYPE_B4:
|
|
case DECOMP_TYPE_B5:
|
|
case DECOMP_TYPE_B6:
|
|
case DECOMP_TYPE_B7:
|
|
case DECOMP_TYPE_B8:
|
|
l = type - DECOMP_TYPE_B1 + 1;
|
|
decomp_type_b:
|
|
{
|
|
uint32_t c_min;
|
|
c_min = unicode_get16(d);
|
|
d += 2 + (c - code) * l;
|
|
for(i = 0; i < l; i++) {
|
|
c1 = d[i];
|
|
if (c1 == 0xff)
|
|
c1 = 0x20;
|
|
else
|
|
c1 += c_min;
|
|
res[i] = c1;
|
|
}
|
|
}
|
|
return l;
|
|
case DECOMP_TYPE_LS2:
|
|
d += (c - code) * 3;
|
|
if (!(res[0] = unicode_get16(d)))
|
|
return 0;
|
|
res[1] = unicode_get_short_code(d[2]);
|
|
return 2;
|
|
case DECOMP_TYPE_PAT3:
|
|
res[0] = unicode_get16(d);
|
|
res[2] = unicode_get16(d + 2);
|
|
d += 4 + (c - code) * 2;
|
|
res[1] = unicode_get16(d);
|
|
return 3;
|
|
case DECOMP_TYPE_S2_UL:
|
|
case DECOMP_TYPE_LS2_UL:
|
|
c1 = c - code;
|
|
if (type == DECOMP_TYPE_S2_UL) {
|
|
d += c1 & ~1;
|
|
c = unicode_get_short_code(*d);
|
|
d++;
|
|
} else {
|
|
d += (c1 >> 1) * 3;
|
|
c = unicode_get16(d);
|
|
d += 2;
|
|
}
|
|
if (c1 & 1)
|
|
c = unicode_get_lower_simple(c);
|
|
res[0] = c;
|
|
res[1] = unicode_get_short_code(*d);
|
|
return 2;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* return the length of the decomposition (length <=
|
|
UNICODE_DECOMP_LEN_MAX) or 0 if no decomposition */
|
|
static int unicode_decomp_char(uint32_t *res, uint32_t c, BOOL is_compat1)
|
|
{
|
|
uint32_t v, type, is_compat, code, len;
|
|
int idx_min, idx_max, idx;
|
|
|
|
idx_min = 0;
|
|
idx_max = countof(unicode_decomp_table1) - 1;
|
|
while (idx_min <= idx_max) {
|
|
idx = (idx_max + idx_min) / 2;
|
|
v = unicode_decomp_table1[idx];
|
|
code = v >> (32 - 18);
|
|
len = (v >> (32 - 18 - 7)) & 0x7f;
|
|
// printf("idx=%d code=%05x len=%d\n", idx, code, len);
|
|
if (c < code) {
|
|
idx_max = idx - 1;
|
|
} else if (c >= code + len) {
|
|
idx_min = idx + 1;
|
|
} else {
|
|
is_compat = v & 1;
|
|
if (is_compat1 < is_compat)
|
|
break;
|
|
type = (v >> (32 - 18 - 7 - 6)) & 0x3f;
|
|
return unicode_decomp_entry(res, c, idx, code, len, type);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* return 0 if no pair found */
|
|
static int unicode_compose_pair(uint32_t c0, uint32_t c1)
|
|
{
|
|
uint32_t code, len, type, v, idx1, d_idx, d_offset, ch;
|
|
int idx_min, idx_max, idx, d;
|
|
uint32_t pair[2];
|
|
|
|
idx_min = 0;
|
|
idx_max = countof(unicode_comp_table) - 1;
|
|
while (idx_min <= idx_max) {
|
|
idx = (idx_max + idx_min) / 2;
|
|
idx1 = unicode_comp_table[idx];
|
|
|
|
/* idx1 represent an entry of the decomposition table */
|
|
d_idx = idx1 >> 6;
|
|
d_offset = idx1 & 0x3f;
|
|
v = unicode_decomp_table1[d_idx];
|
|
code = v >> (32 - 18);
|
|
len = (v >> (32 - 18 - 7)) & 0x7f;
|
|
type = (v >> (32 - 18 - 7 - 6)) & 0x3f;
|
|
ch = code + d_offset;
|
|
unicode_decomp_entry(pair, ch, d_idx, code, len, type);
|
|
d = c0 - pair[0];
|
|
if (d == 0)
|
|
d = c1 - pair[1];
|
|
if (d < 0) {
|
|
idx_max = idx - 1;
|
|
} else if (d > 0) {
|
|
idx_min = idx + 1;
|
|
} else {
|
|
return ch;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* return the combining class of character c (between 0 and 255) */
|
|
static int unicode_get_cc(uint32_t c)
|
|
{
|
|
uint32_t code, n, type, cc, c1, b;
|
|
int pos;
|
|
const uint8_t *p;
|
|
|
|
pos = get_index_pos(&code, c,
|
|
unicode_cc_index, sizeof(unicode_cc_index) / 3);
|
|
if (pos < 0)
|
|
return 0;
|
|
p = unicode_cc_table + pos;
|
|
for(;;) {
|
|
b = *p++;
|
|
type = b >> 6;
|
|
n = b & 0x3f;
|
|
if (n < 48) {
|
|
} else if (n < 56) {
|
|
n = (n - 48) << 8;
|
|
n |= *p++;
|
|
n += 48;
|
|
} else {
|
|
n = (n - 56) << 8;
|
|
n |= *p++ << 8;
|
|
n |= *p++;
|
|
n += 48 + (1 << 11);
|
|
}
|
|
if (type <= 1)
|
|
p++;
|
|
c1 = code + n + 1;
|
|
if (c < c1) {
|
|
switch(type) {
|
|
case 0:
|
|
cc = p[-1];
|
|
break;
|
|
case 1:
|
|
cc = p[-1] + c - code;
|
|
break;
|
|
case 2:
|
|
cc = 0;
|
|
break;
|
|
default:
|
|
case 3:
|
|
cc = 230;
|
|
break;
|
|
}
|
|
return cc;
|
|
}
|
|
code = c1;
|
|
}
|
|
}
|
|
|
|
static void sort_cc(int *buf, int len)
|
|
{
|
|
int i, j, k, cc, cc1, start, ch1;
|
|
|
|
for(i = 0; i < len; i++) {
|
|
cc = unicode_get_cc(buf[i]);
|
|
if (cc != 0) {
|
|
start = i;
|
|
j = i + 1;
|
|
while (j < len) {
|
|
ch1 = buf[j];
|
|
cc1 = unicode_get_cc(ch1);
|
|
if (cc1 == 0)
|
|
break;
|
|
k = j - 1;
|
|
while (k >= start) {
|
|
if (unicode_get_cc(buf[k]) <= cc1)
|
|
break;
|
|
buf[k + 1] = buf[k];
|
|
k--;
|
|
}
|
|
buf[k + 1] = ch1;
|
|
j++;
|
|
}
|
|
i = j;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void to_nfd_rec(DynBuf *dbuf,
|
|
const int *src, int src_len, int is_compat)
|
|
{
|
|
uint32_t c, v;
|
|
int i, l;
|
|
uint32_t res[UNICODE_DECOMP_LEN_MAX];
|
|
|
|
for(i = 0; i < src_len; i++) {
|
|
c = src[i];
|
|
if (c >= 0xac00 && c < 0xd7a4) {
|
|
/* Hangul decomposition */
|
|
c -= 0xac00;
|
|
dbuf_put_u32(dbuf, 0x1100 + c / 588);
|
|
dbuf_put_u32(dbuf, 0x1161 + (c % 588) / 28);
|
|
v = c % 28;
|
|
if (v != 0)
|
|
dbuf_put_u32(dbuf, 0x11a7 + v);
|
|
} else {
|
|
l = unicode_decomp_char(res, c, is_compat);
|
|
if (l) {
|
|
to_nfd_rec(dbuf, (int *)res, l, is_compat);
|
|
} else {
|
|
dbuf_put_u32(dbuf, c);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* return 0 if not found */
|
|
static int compose_pair(uint32_t c0, uint32_t c1)
|
|
{
|
|
/* Hangul composition */
|
|
if (c0 >= 0x1100 && c0 < 0x1100 + 19 &&
|
|
c1 >= 0x1161 && c1 < 0x1161 + 21) {
|
|
return 0xac00 + (c0 - 0x1100) * 588 + (c1 - 0x1161) * 28;
|
|
} else if (c0 >= 0xac00 && c0 < 0xac00 + 11172 &&
|
|
(c0 - 0xac00) % 28 == 0 &&
|
|
c1 >= 0x11a7 && c1 < 0x11a7 + 28) {
|
|
return c0 + c1 - 0x11a7;
|
|
} else {
|
|
return unicode_compose_pair(c0, c1);
|
|
}
|
|
}
|
|
|
|
int unicode_normalize(uint32_t **pdst, const uint32_t *src, int src_len,
|
|
UnicodeNormalizationEnum n_type,
|
|
void *opaque, DynBufReallocFunc *realloc_func)
|
|
{
|
|
int *buf, buf_len, i, p, starter_pos, cc, last_cc, out_len;
|
|
BOOL is_compat;
|
|
DynBuf dbuf_s, *dbuf = &dbuf_s;
|
|
|
|
is_compat = n_type >> 1;
|
|
|
|
dbuf_init2(dbuf, opaque, realloc_func);
|
|
if (dbuf_realloc(dbuf, sizeof(int) * src_len))
|
|
goto fail;
|
|
|
|
/* common case: latin1 is unaffected by NFC */
|
|
if (n_type == UNICODE_NFC) {
|
|
for(i = 0; i < src_len; i++) {
|
|
if (src[i] >= 0x100)
|
|
goto not_latin1;
|
|
}
|
|
buf = (int *)dbuf->buf;
|
|
memcpy(buf, src, src_len * sizeof(int));
|
|
*pdst = (uint32_t *)buf;
|
|
return src_len;
|
|
not_latin1: ;
|
|
}
|
|
|
|
to_nfd_rec(dbuf, (const int *)src, src_len, is_compat);
|
|
if (dbuf_error(dbuf)) {
|
|
fail:
|
|
*pdst = NULL;
|
|
return -1;
|
|
}
|
|
buf = (int *)dbuf->buf;
|
|
buf_len = dbuf->size / sizeof(int);
|
|
|
|
sort_cc(buf, buf_len);
|
|
|
|
if (buf_len <= 1 || (n_type & 1) != 0) {
|
|
/* NFD / NFKD */
|
|
*pdst = (uint32_t *)buf;
|
|
return buf_len;
|
|
}
|
|
|
|
i = 1;
|
|
out_len = 1;
|
|
while (i < buf_len) {
|
|
/* find the starter character and test if it is blocked from
|
|
the character at 'i' */
|
|
last_cc = unicode_get_cc(buf[i]);
|
|
starter_pos = out_len - 1;
|
|
while (starter_pos >= 0) {
|
|
cc = unicode_get_cc(buf[starter_pos]);
|
|
if (cc == 0)
|
|
break;
|
|
if (cc >= last_cc)
|
|
goto next;
|
|
last_cc = 256;
|
|
starter_pos--;
|
|
}
|
|
if (starter_pos >= 0 &&
|
|
(p = compose_pair(buf[starter_pos], buf[i])) != 0) {
|
|
buf[starter_pos] = p;
|
|
i++;
|
|
} else {
|
|
next:
|
|
buf[out_len++] = buf[i++];
|
|
}
|
|
}
|
|
*pdst = (uint32_t *)buf;
|
|
return out_len;
|
|
}
|
|
|
|
/* char ranges for various unicode properties */
|
|
|
|
static int unicode_find_name(const char *name_table, const char *name)
|
|
{
|
|
const char *p, *r;
|
|
int pos;
|
|
size_t name_len, len;
|
|
|
|
p = name_table;
|
|
pos = 0;
|
|
name_len = strlen(name);
|
|
while (*p) {
|
|
for(;;) {
|
|
r = strchr(p, ',');
|
|
if (!r)
|
|
len = strlen(p);
|
|
else
|
|
len = r - p;
|
|
if (len == name_len && !memcmp(p, name, name_len))
|
|
return pos;
|
|
p += len + 1;
|
|
if (!r)
|
|
break;
|
|
}
|
|
pos++;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2
|
|
if not found */
|
|
int unicode_script(CharRange *cr,
|
|
const char *script_name, BOOL is_ext)
|
|
{
|
|
int script_idx;
|
|
const uint8_t *p, *p_end;
|
|
uint32_t c, c1, b, n, v, v_len, i, type;
|
|
CharRange cr1_s, *cr1;
|
|
CharRange cr2_s, *cr2 = &cr2_s;
|
|
BOOL is_common;
|
|
|
|
script_idx = unicode_find_name(unicode_script_name_table, script_name);
|
|
if (script_idx < 0)
|
|
return -2;
|
|
/* Note: we remove the "Unknown" Script */
|
|
script_idx += UNICODE_SCRIPT_Unknown + 1;
|
|
|
|
is_common = (script_idx == UNICODE_SCRIPT_Common ||
|
|
script_idx == UNICODE_SCRIPT_Inherited);
|
|
if (is_ext) {
|
|
cr1 = &cr1_s;
|
|
cr_init(cr1, cr->mem_opaque, cr->realloc_func);
|
|
cr_init(cr2, cr->mem_opaque, cr->realloc_func);
|
|
} else {
|
|
cr1 = cr;
|
|
}
|
|
|
|
p = unicode_script_table;
|
|
p_end = unicode_script_table + countof(unicode_script_table);
|
|
c = 0;
|
|
while (p < p_end) {
|
|
b = *p++;
|
|
type = b >> 7;
|
|
n = b & 0x7f;
|
|
if (n < 96) {
|
|
} else if (n < 112) {
|
|
n = (n - 96) << 8;
|
|
n |= *p++;
|
|
n += 96;
|
|
} else {
|
|
n = (n - 112) << 16;
|
|
n |= *p++ << 8;
|
|
n |= *p++;
|
|
n += 96 + (1 << 12);
|
|
}
|
|
if (type == 0)
|
|
v = 0;
|
|
else
|
|
v = *p++;
|
|
c1 = c + n + 1;
|
|
if (v == script_idx) {
|
|
if (cr_add_interval(cr1, c, c1))
|
|
goto fail;
|
|
}
|
|
c = c1;
|
|
}
|
|
|
|
if (is_ext) {
|
|
/* add the script extensions */
|
|
p = unicode_script_ext_table;
|
|
p_end = unicode_script_ext_table + countof(unicode_script_ext_table);
|
|
c = 0;
|
|
while (p < p_end) {
|
|
b = *p++;
|
|
if (b < 128) {
|
|
n = b;
|
|
} else if (b < 128 + 64) {
|
|
n = (b - 128) << 8;
|
|
n |= *p++;
|
|
n += 128;
|
|
} else {
|
|
n = (b - 128 - 64) << 16;
|
|
n |= *p++ << 8;
|
|
n |= *p++;
|
|
n += 128 + (1 << 14);
|
|
}
|
|
c1 = c + n + 1;
|
|
v_len = *p++;
|
|
if (is_common) {
|
|
if (v_len != 0) {
|
|
if (cr_add_interval(cr2, c, c1))
|
|
goto fail;
|
|
}
|
|
} else {
|
|
for(i = 0; i < v_len; i++) {
|
|
if (p[i] == script_idx) {
|
|
if (cr_add_interval(cr2, c, c1))
|
|
goto fail;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
p += v_len;
|
|
c = c1;
|
|
}
|
|
if (is_common) {
|
|
/* remove all the characters with script extensions */
|
|
if (cr_invert(cr2))
|
|
goto fail;
|
|
if (cr_op(cr, cr1->points, cr1->len, cr2->points, cr2->len,
|
|
CR_OP_INTER))
|
|
goto fail;
|
|
} else {
|
|
if (cr_op(cr, cr1->points, cr1->len, cr2->points, cr2->len,
|
|
CR_OP_UNION))
|
|
goto fail;
|
|
}
|
|
cr_free(cr1);
|
|
cr_free(cr2);
|
|
}
|
|
return 0;
|
|
fail:
|
|
if (is_ext) {
|
|
cr_free(cr1);
|
|
cr_free(cr2);
|
|
}
|
|
goto fail;
|
|
}
|
|
|
|
#define M(id) (1U << UNICODE_GC_ ## id)
|
|
|
|
static int unicode_general_category1(CharRange *cr, uint32_t gc_mask)
|
|
{
|
|
const uint8_t *p, *p_end;
|
|
uint32_t c, c0, b, n, v;
|
|
|
|
p = unicode_gc_table;
|
|
p_end = unicode_gc_table + countof(unicode_gc_table);
|
|
c = 0;
|
|
while (p < p_end) {
|
|
b = *p++;
|
|
n = b >> 5;
|
|
v = b & 0x1f;
|
|
if (n == 7) {
|
|
n = *p++;
|
|
if (n < 128) {
|
|
n += 7;
|
|
} else if (n < 128 + 64) {
|
|
n = (n - 128) << 8;
|
|
n |= *p++;
|
|
n += 7 + 128;
|
|
} else {
|
|
n = (n - 128 - 64) << 16;
|
|
n |= *p++ << 8;
|
|
n |= *p++;
|
|
n += 7 + 128 + (1 << 14);
|
|
}
|
|
}
|
|
c0 = c;
|
|
c += n + 1;
|
|
if (v == 31) {
|
|
/* run of Lu / Ll */
|
|
b = gc_mask & (M(Lu) | M(Ll));
|
|
if (b != 0) {
|
|
if (b == (M(Lu) | M(Ll))) {
|
|
goto add_range;
|
|
} else {
|
|
c0 += ((gc_mask & M(Ll)) != 0);
|
|
for(; c0 < c; c0 += 2) {
|
|
if (cr_add_interval(cr, c0, c0 + 1))
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
} else if ((gc_mask >> v) & 1) {
|
|
add_range:
|
|
if (cr_add_interval(cr, c0, c))
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int unicode_prop1(CharRange *cr, int prop_idx)
|
|
{
|
|
const uint8_t *p, *p_end;
|
|
uint32_t c, c0, b, bit;
|
|
|
|
p = unicode_prop_table[prop_idx];
|
|
p_end = p + unicode_prop_len_table[prop_idx];
|
|
c = 0;
|
|
bit = 0;
|
|
while (p < p_end) {
|
|
c0 = c;
|
|
b = *p++;
|
|
if (b < 64) {
|
|
c += (b >> 3) + 1;
|
|
if (bit) {
|
|
if (cr_add_interval(cr, c0, c))
|
|
return -1;
|
|
}
|
|
bit ^= 1;
|
|
c0 = c;
|
|
c += (b & 7) + 1;
|
|
} else if (b >= 0x80) {
|
|
c += b - 0x80 + 1;
|
|
} else if (b < 0x60) {
|
|
c += (((b - 0x40) << 8) | p[0]) + 1;
|
|
p++;
|
|
} else {
|
|
c += (((b - 0x60) << 16) | (p[0] << 8) | p[1]) + 1;
|
|
p += 2;
|
|
}
|
|
if (bit) {
|
|
if (cr_add_interval(cr, c0, c))
|
|
return -1;
|
|
}
|
|
bit ^= 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define CASE_U (1 << 0)
|
|
#define CASE_L (1 << 1)
|
|
#define CASE_F (1 << 2)
|
|
|
|
/* use the case conversion table to generate range of characters.
|
|
CASE_U: set char if modified by uppercasing,
|
|
CASE_L: set char if modified by lowercasing,
|
|
CASE_F: set char if modified by case folding,
|
|
*/
|
|
static int unicode_case1(CharRange *cr, int case_mask)
|
|
{
|
|
#define MR(x) (1 << RUN_TYPE_ ## x)
|
|
const uint32_t tab_run_mask[3] = {
|
|
MR(U) | MR(UF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(UF_D20) |
|
|
MR(UF_D1_EXT) | MR(U_EXT) | MR(U_EXT2) | MR(U_EXT3),
|
|
|
|
MR(L) | MR(LF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(LF_EXT) | MR(L_EXT2),
|
|
|
|
MR(UF) | MR(LF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(LF_EXT) | MR(UF_D20) | MR(UF_D1_EXT) | MR(LF_EXT),
|
|
};
|
|
#undef MR
|
|
uint32_t mask, v, code, type, len, i, idx;
|
|
|
|
if (case_mask == 0)
|
|
return 0;
|
|
mask = 0;
|
|
for(i = 0; i < 3; i++) {
|
|
if ((case_mask >> i) & 1)
|
|
mask |= tab_run_mask[i];
|
|
}
|
|
for(idx = 0; idx < countof(case_conv_table1); idx++) {
|
|
v = case_conv_table1[idx];
|
|
type = (v >> (32 - 17 - 7 - 4)) & 0xf;
|
|
code = v >> (32 - 17);
|
|
len = (v >> (32 - 17 - 7)) & 0x7f;
|
|
if ((mask >> type) & 1) {
|
|
// printf("%d: type=%d %04x %04x\n", idx, type, code, code + len - 1);
|
|
switch(type) {
|
|
case RUN_TYPE_UL:
|
|
if ((case_mask & CASE_U) && (case_mask & (CASE_L | CASE_F)))
|
|
goto def_case;
|
|
code += ((case_mask & CASE_U) != 0);
|
|
for(i = 0; i < len; i += 2) {
|
|
if (cr_add_interval(cr, code + i, code + i + 1))
|
|
return -1;
|
|
}
|
|
break;
|
|
case RUN_TYPE_LSU:
|
|
if ((case_mask & CASE_U) && (case_mask & (CASE_L | CASE_F)))
|
|
goto def_case;
|
|
if (!(case_mask & CASE_U)) {
|
|
if (cr_add_interval(cr, code, code + 1))
|
|
return -1;
|
|
}
|
|
if (cr_add_interval(cr, code + 1, code + 2))
|
|
return -1;
|
|
if (case_mask & CASE_U) {
|
|
if (cr_add_interval(cr, code + 2, code + 3))
|
|
return -1;
|
|
}
|
|
break;
|
|
default:
|
|
def_case:
|
|
if (cr_add_interval(cr, code, code + len))
|
|
return -1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
typedef enum {
|
|
POP_GC,
|
|
POP_PROP,
|
|
POP_CASE,
|
|
POP_UNION,
|
|
POP_INTER,
|
|
POP_XOR,
|
|
POP_INVERT,
|
|
POP_END,
|
|
} PropOPEnum;
|
|
|
|
#define POP_STACK_LEN_MAX 4
|
|
|
|
static int unicode_prop_ops(CharRange *cr, ...)
|
|
{
|
|
va_list ap;
|
|
CharRange stack[POP_STACK_LEN_MAX];
|
|
int stack_len, op, ret, i;
|
|
uint32_t a;
|
|
|
|
va_start(ap, cr);
|
|
stack_len = 0;
|
|
for(;;) {
|
|
op = va_arg(ap, int);
|
|
switch(op) {
|
|
case POP_GC:
|
|
assert(stack_len < POP_STACK_LEN_MAX);
|
|
a = va_arg(ap, int);
|
|
cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func);
|
|
if (unicode_general_category1(&stack[stack_len - 1], a))
|
|
goto fail;
|
|
break;
|
|
case POP_PROP:
|
|
assert(stack_len < POP_STACK_LEN_MAX);
|
|
a = va_arg(ap, int);
|
|
cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func);
|
|
if (unicode_prop1(&stack[stack_len - 1], a))
|
|
goto fail;
|
|
break;
|
|
case POP_CASE:
|
|
assert(stack_len < POP_STACK_LEN_MAX);
|
|
a = va_arg(ap, int);
|
|
cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func);
|
|
if (unicode_case1(&stack[stack_len - 1], a))
|
|
goto fail;
|
|
break;
|
|
case POP_UNION:
|
|
case POP_INTER:
|
|
case POP_XOR:
|
|
{
|
|
CharRange *cr1, *cr2, *cr3;
|
|
assert(stack_len >= 2);
|
|
assert(stack_len < POP_STACK_LEN_MAX);
|
|
cr1 = &stack[stack_len - 2];
|
|
cr2 = &stack[stack_len - 1];
|
|
cr3 = &stack[stack_len++];
|
|
cr_init(cr3, cr->mem_opaque, cr->realloc_func);
|
|
if (cr_op(cr3, cr1->points, cr1->len,
|
|
cr2->points, cr2->len, op - POP_UNION + CR_OP_UNION))
|
|
goto fail;
|
|
cr_free(cr1);
|
|
cr_free(cr2);
|
|
*cr1 = *cr3;
|
|
stack_len -= 2;
|
|
}
|
|
break;
|
|
case POP_INVERT:
|
|
assert(stack_len >= 1);
|
|
if (cr_invert(&stack[stack_len - 1]))
|
|
goto fail;
|
|
break;
|
|
case POP_END:
|
|
goto done;
|
|
default:
|
|
abort();
|
|
}
|
|
}
|
|
done:
|
|
assert(stack_len == 1);
|
|
ret = cr_copy(cr, &stack[0]);
|
|
cr_free(&stack[0]);
|
|
return ret;
|
|
fail:
|
|
for(i = 0; i < stack_len; i++)
|
|
cr_free(&stack[i]);
|
|
return -1;
|
|
}
|
|
|
|
static const uint32_t unicode_gc_mask_table[] = {
|
|
M(Lu) | M(Ll) | M(Lt), /* LC */
|
|
M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo), /* L */
|
|
M(Mn) | M(Mc) | M(Me), /* M */
|
|
M(Nd) | M(Nl) | M(No), /* N */
|
|
M(Sm) | M(Sc) | M(Sk) | M(So), /* S */
|
|
M(Pc) | M(Pd) | M(Ps) | M(Pe) | M(Pi) | M(Pf) | M(Po), /* P */
|
|
M(Zs) | M(Zl) | M(Zp), /* Z */
|
|
M(Cc) | M(Cf) | M(Cs) | M(Co) | M(Cn), /* C */
|
|
};
|
|
|
|
/* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2
|
|
if not found */
|
|
int unicode_general_category(CharRange *cr, const char *gc_name)
|
|
{
|
|
int gc_idx;
|
|
uint32_t gc_mask;
|
|
|
|
gc_idx = unicode_find_name(unicode_gc_name_table, gc_name);
|
|
if (gc_idx < 0)
|
|
return -2;
|
|
if (gc_idx <= UNICODE_GC_Co) {
|
|
gc_mask = (uint64_t)1 << gc_idx;
|
|
} else {
|
|
gc_mask = unicode_gc_mask_table[gc_idx - UNICODE_GC_LC];
|
|
}
|
|
return unicode_general_category1(cr, gc_mask);
|
|
}
|
|
|
|
|
|
/* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2
|
|
if not found */
|
|
int unicode_prop(CharRange *cr, const char *prop_name)
|
|
{
|
|
int prop_idx, ret;
|
|
|
|
prop_idx = unicode_find_name(unicode_prop_name_table, prop_name);
|
|
if (prop_idx < 0)
|
|
return -2;
|
|
prop_idx += UNICODE_PROP_ASCII_Hex_Digit;
|
|
|
|
ret = 0;
|
|
switch(prop_idx) {
|
|
case UNICODE_PROP_ASCII:
|
|
if (cr_add_interval(cr, 0x00, 0x7f + 1))
|
|
return -1;
|
|
break;
|
|
case UNICODE_PROP_Any:
|
|
if (cr_add_interval(cr, 0x00000, 0x10ffff + 1))
|
|
return -1;
|
|
break;
|
|
case UNICODE_PROP_Assigned:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_GC, M(Cn),
|
|
POP_INVERT,
|
|
POP_END);
|
|
break;
|
|
case UNICODE_PROP_Math:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_GC, M(Sm),
|
|
POP_PROP, UNICODE_PROP_Other_Math,
|
|
POP_UNION,
|
|
POP_END);
|
|
break;
|
|
case UNICODE_PROP_Lowercase:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_GC, M(Ll),
|
|
POP_PROP, UNICODE_PROP_Other_Lowercase,
|
|
POP_UNION,
|
|
POP_END);
|
|
break;
|
|
case UNICODE_PROP_Uppercase:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_GC, M(Lu),
|
|
POP_PROP, UNICODE_PROP_Other_Uppercase,
|
|
POP_UNION,
|
|
POP_END);
|
|
break;
|
|
case UNICODE_PROP_Cased:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_GC, M(Lu) | M(Ll) | M(Lt),
|
|
POP_PROP, UNICODE_PROP_Other_Uppercase,
|
|
POP_UNION,
|
|
POP_PROP, UNICODE_PROP_Other_Lowercase,
|
|
POP_UNION,
|
|
POP_END);
|
|
break;
|
|
case UNICODE_PROP_Alphabetic:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl),
|
|
POP_PROP, UNICODE_PROP_Other_Uppercase,
|
|
POP_UNION,
|
|
POP_PROP, UNICODE_PROP_Other_Lowercase,
|
|
POP_UNION,
|
|
POP_PROP, UNICODE_PROP_Other_Alphabetic,
|
|
POP_UNION,
|
|
POP_END);
|
|
break;
|
|
case UNICODE_PROP_Grapheme_Base:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_GC, M(Cc) | M(Cf) | M(Cs) | M(Co) | M(Cn) | M(Zl) | M(Zp) | M(Me) | M(Mn),
|
|
POP_PROP, UNICODE_PROP_Other_Grapheme_Extend,
|
|
POP_UNION,
|
|
POP_INVERT,
|
|
POP_END);
|
|
break;
|
|
case UNICODE_PROP_Grapheme_Extend:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_GC, M(Me) | M(Mn),
|
|
POP_PROP, UNICODE_PROP_Other_Grapheme_Extend,
|
|
POP_UNION,
|
|
POP_END);
|
|
break;
|
|
case UNICODE_PROP_XID_Start:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl),
|
|
POP_PROP, UNICODE_PROP_Other_ID_Start,
|
|
POP_UNION,
|
|
POP_PROP, UNICODE_PROP_Pattern_Syntax,
|
|
POP_PROP, UNICODE_PROP_Pattern_White_Space,
|
|
POP_UNION,
|
|
POP_PROP, UNICODE_PROP_XID_Start1,
|
|
POP_UNION,
|
|
POP_INVERT,
|
|
POP_INTER,
|
|
POP_END);
|
|
break;
|
|
case UNICODE_PROP_XID_Continue:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl) |
|
|
M(Mn) | M(Mc) | M(Nd) | M(Pc),
|
|
POP_PROP, UNICODE_PROP_Other_ID_Start,
|
|
POP_UNION,
|
|
POP_PROP, UNICODE_PROP_Other_ID_Continue,
|
|
POP_UNION,
|
|
POP_PROP, UNICODE_PROP_Pattern_Syntax,
|
|
POP_PROP, UNICODE_PROP_Pattern_White_Space,
|
|
POP_UNION,
|
|
POP_PROP, UNICODE_PROP_XID_Continue1,
|
|
POP_UNION,
|
|
POP_INVERT,
|
|
POP_INTER,
|
|
POP_END);
|
|
break;
|
|
case UNICODE_PROP_Changes_When_Uppercased:
|
|
ret = unicode_case1(cr, CASE_U);
|
|
break;
|
|
case UNICODE_PROP_Changes_When_Lowercased:
|
|
ret = unicode_case1(cr, CASE_L);
|
|
break;
|
|
case UNICODE_PROP_Changes_When_Casemapped:
|
|
ret = unicode_case1(cr, CASE_U | CASE_L | CASE_F);
|
|
break;
|
|
case UNICODE_PROP_Changes_When_Titlecased:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_CASE, CASE_U,
|
|
POP_PROP, UNICODE_PROP_Changes_When_Titlecased1,
|
|
POP_XOR,
|
|
POP_END);
|
|
break;
|
|
case UNICODE_PROP_Changes_When_Casefolded:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_CASE, CASE_F,
|
|
POP_PROP, UNICODE_PROP_Changes_When_Casefolded1,
|
|
POP_XOR,
|
|
POP_END);
|
|
break;
|
|
case UNICODE_PROP_Changes_When_NFKC_Casefolded:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_CASE, CASE_F,
|
|
POP_PROP, UNICODE_PROP_Changes_When_NFKC_Casefolded1,
|
|
POP_XOR,
|
|
POP_END);
|
|
break;
|
|
/* we use the existing tables */
|
|
case UNICODE_PROP_ID_Continue:
|
|
ret = unicode_prop_ops(cr,
|
|
POP_PROP, UNICODE_PROP_ID_Start,
|
|
POP_PROP, UNICODE_PROP_ID_Continue1,
|
|
POP_XOR,
|
|
POP_END);
|
|
break;
|
|
default:
|
|
if (prop_idx >= countof(unicode_prop_table))
|
|
return -2;
|
|
ret = unicode_prop1(cr, prop_idx);
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#endif /* CONFIG_ALL_UNICODE */
|