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-rw-r--r--src/utf8.c453
1 files changed, 0 insertions, 453 deletions
diff --git a/src/utf8.c b/src/utf8.c
deleted file mode 100644
index d77c5d1..0000000
--- a/src/utf8.c
+++ /dev/null
@@ -1,453 +0,0 @@
-#include <stdlib.h>
-#include <stdint.h>
-#include <assert.h>
-
-#include "cmark_ctype.h"
-#include "utf8.h"
-
-static const int8_t utf8proc_utf8class[256] = {
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
- 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-static void encode_unknown(cmark_strbuf *buf)
-{
- static const uint8_t repl[] = {239, 191, 189};
- cmark_strbuf_put(buf, repl, 3);
-}
-
-static int utf8proc_charlen(const uint8_t *str, int str_len)
-{
- int length, i;
-
- if (!str_len)
- return 0;
-
- length = utf8proc_utf8class[str[0]];
-
- if (!length)
- return -1;
-
- if (str_len >= 0 && length > str_len)
- return -str_len;
-
- for (i = 1; i < length; i++) {
- if ((str[i] & 0xC0) != 0x80)
- return -i;
- }
-
- return length;
-}
-
-// Validate a single UTF-8 character according to RFC 3629.
-static int utf8proc_valid(const uint8_t *str, int str_len)
-{
- int length = utf8proc_charlen(str, str_len);
-
- if (length <= 0)
- return length;
-
- switch (length) {
- case 1:
- if (str[0] == 0x00) {
- // ASCII NUL is technically valid but rejected
- // for security reasons.
- return -length;
- }
- break;
-
- case 2:
- if (str[0] < 0xC2) {
- // Overlong
- return -length;
- }
- break;
-
- case 3:
- if (str[0] == 0xE0) {
- if (str[1] < 0xA0) {
- // Overlong
- return -length;
- }
- } else if (str[0] == 0xED) {
- if (str[1] >= 0xA0) {
- // Surrogate
- return -length;
- }
- }
- break;
-
- case 4:
- if (str[0] == 0xF0) {
- if (str[1] < 0x90) {
- // Overlong
- return -length;
- }
- } else if (str[0] >= 0xF4) {
- if (str[0] > 0xF4 || str[1] >= 0x90) {
- // Above 0x10FFFF
- return -length;
- }
- }
- break;
- }
-
- return length;
-}
-
-void utf8proc_detab(cmark_strbuf *ob, const uint8_t *line, size_t size)
-{
- static const uint8_t whitespace[] = " ";
-
- size_t i = 0, tab = 0;
-
- while (i < size) {
- size_t org = i;
-
- while (i < size && line[i] != '\t' && line[i] != '\0'
- && line[i] < 0x80) {
- i++;
- tab++;
- }
-
- if (i > org)
- cmark_strbuf_put(ob, line + org, i - org);
-
- if (i >= size)
- break;
-
- if (line[i] == '\t') {
- int numspaces = 4 - (tab % 4);
- cmark_strbuf_put(ob, whitespace, numspaces);
- i += 1;
- tab += numspaces;
- } else {
- int charlen = utf8proc_valid(line + i, size - i);
-
- if (charlen >= 0) {
- cmark_strbuf_put(ob, line + i, charlen);
- } else {
- encode_unknown(ob);
- charlen = -charlen;
- }
-
- i += charlen;
- tab += 1;
- }
- }
-}
-
-int utf8proc_iterate(const uint8_t *str, int str_len, int32_t *dst)
-{
- int length;
- int32_t uc = -1;
-
- *dst = -1;
- length = utf8proc_charlen(str, str_len);
- if (length < 0)
- return -1;
-
- switch (length) {
- case 1:
- uc = str[0];
- break;
- case 2:
- uc = ((str[0] & 0x1F) << 6) + (str[1] & 0x3F);
- if (uc < 0x80) uc = -1;
- break;
- case 3:
- uc = ((str[0] & 0x0F) << 12) + ((str[1] & 0x3F) << 6)
- + (str[2] & 0x3F);
- if (uc < 0x800 || (uc >= 0xD800 && uc < 0xE000) ||
- (uc >= 0xFDD0 && uc < 0xFDF0)) uc = -1;
- break;
- case 4:
- uc = ((str[0] & 0x07) << 18) + ((str[1] & 0x3F) << 12)
- + ((str[2] & 0x3F) << 6) + (str[3] & 0x3F);
- if (uc < 0x10000 || uc >= 0x110000) uc = -1;
- break;
- }
-
- if (uc < 0 || ((uc & 0xFFFF) >= 0xFFFE))
- return -1;
-
- *dst = uc;
- return length;
-}
-
-void utf8proc_encode_char(int32_t uc, cmark_strbuf *buf)
-{
- uint8_t dst[4];
- int len = 0;
-
- assert(uc >= 0);
-
- if (uc < 0x80) {
- dst[0] = uc;
- len = 1;
- } else if (uc < 0x800) {
- dst[0] = 0xC0 + (uc >> 6);
- dst[1] = 0x80 + (uc & 0x3F);
- len = 2;
- } else if (uc == 0xFFFF) {
- dst[0] = 0xFF;
- len = 1;
- } else if (uc == 0xFFFE) {
- dst[0] = 0xFE;
- len = 1;
- } else if (uc < 0x10000) {
- dst[0] = 0xE0 + (uc >> 12);
- dst[1] = 0x80 + ((uc >> 6) & 0x3F);
- dst[2] = 0x80 + (uc & 0x3F);
- len = 3;
- } else if (uc < 0x110000) {
- dst[0] = 0xF0 + (uc >> 18);
- dst[1] = 0x80 + ((uc >> 12) & 0x3F);
- dst[2] = 0x80 + ((uc >> 6) & 0x3F);
- dst[3] = 0x80 + (uc & 0x3F);
- len = 4;
- } else {
- encode_unknown(buf);
- return;
- }
-
- cmark_strbuf_put(buf, dst, len);
-}
-
-void utf8proc_case_fold(cmark_strbuf *dest, const uint8_t *str, int len)
-{
- int32_t c;
-
-#define bufpush(x) \
- utf8proc_encode_char(x, dest)
-
- while (len > 0) {
- int char_len = utf8proc_iterate(str, len, &c);
-
- if (char_len >= 0) {
-#include "case_fold_switch.inc"
- } else {
- encode_unknown(dest);
- char_len = -char_len;
- }
-
- str += char_len;
- len -= char_len;
- }
-}
-
-// matches anything in the Zs class, plus LF, CR, TAB, FF.
-int utf8proc_is_space(int32_t uc)
-{
- return (uc == 9 ||
- uc == 10 ||
- uc == 12 ||
- uc == 13 ||
- uc == 32 ||
- uc == 160 ||
- uc == 5760 ||
- (uc >= 8192 && uc <= 8202) ||
- uc == 8239 ||
- uc == 8287 ||
- uc == 12288);
-}
-
-// matches anything in the P[cdefios] classes.
-int utf8proc_is_punctuation(int32_t uc)
-{
- return ((uc < 128 && cmark_ispunct((char)uc)) ||
- uc == 161 ||
- uc == 167 ||
- uc == 171 ||
- uc == 182 ||
- uc == 183 ||
- uc == 187 ||
- uc == 191 ||
- uc == 894 ||
- uc == 903 ||
- (uc >= 1370 && uc <= 1375) ||
- uc == 1417 ||
- uc == 1418 ||
- uc == 1470 ||
- uc == 1472 ||
- uc == 1475 ||
- uc == 1478 ||
- uc == 1523 ||
- uc == 1524 ||
- uc == 1545 ||
- uc == 1546 ||
- uc == 1548 ||
- uc == 1549 ||
- uc == 1563 ||
- uc == 1566 ||
- uc == 1567 ||
- (uc >= 1642 && uc <= 1645) ||
- uc == 1748 ||
- (uc >= 1792 && uc <= 1805) ||
- (uc >= 2039 && uc <= 2041) ||
- (uc >= 2096 && uc <= 2110) ||
- uc == 2142 ||
- uc == 2404 ||
- uc == 2405 ||
- uc == 2416 ||
- uc == 2800 ||
- uc == 3572 ||
- uc == 3663 ||
- uc == 3674 ||
- uc == 3675 ||
- (uc >= 3844 && uc <= 3858) ||
- uc == 3860 ||
- (uc >= 3898 && uc <= 3901) ||
- uc == 3973 ||
- (uc >= 4048 && uc <= 4052) ||
- uc == 4057 ||
- uc == 4058 ||
- (uc >= 4170 && uc <= 4175) ||
- uc == 4347 ||
- (uc >= 4960 && uc <= 4968) ||
- uc == 5120 ||
- uc == 5741 ||
- uc == 5742 ||
- uc == 5787 ||
- uc == 5788 ||
- (uc >= 5867 && uc <= 5869) ||
- uc == 5941 ||
- uc == 5942 ||
- (uc >= 6100 && uc <= 6102) ||
- (uc >= 6104 && uc <= 6106) ||
- (uc >= 6144 && uc <= 6154) ||
- uc == 6468 ||
- uc == 6469 ||
- uc == 6686 ||
- uc == 6687 ||
- (uc >= 6816 && uc <= 6822) ||
- (uc >= 6824 && uc <= 6829) ||
- (uc >= 7002 && uc <= 7008) ||
- (uc >= 7164 && uc <= 7167) ||
- (uc >= 7227 && uc <= 7231) ||
- uc == 7294 ||
- uc == 7295 ||
- (uc >= 7360 && uc <= 7367) ||
- uc == 7379 ||
- (uc >= 8208 && uc <= 8231) ||
- (uc >= 8240 && uc <= 8259) ||
- (uc >= 8261 && uc <= 8273) ||
- (uc >= 8275 && uc <= 8286) ||
- uc == 8317 ||
- uc == 8318 ||
- uc == 8333 ||
- uc == 8334 ||
- (uc >= 8968 && uc <= 8971) ||
- uc == 9001 ||
- uc == 9002 ||
- (uc >= 10088 && uc <= 10101) ||
- uc == 10181 ||
- uc == 10182 ||
- (uc >= 10214 && uc <= 10223) ||
- (uc >= 10627 && uc <= 10648) ||
- (uc >= 10712 && uc <= 10715) ||
- uc == 10748 ||
- uc == 10749 ||
- (uc >= 11513 && uc <= 11516) ||
- uc == 11518 ||
- uc == 11519 ||
- uc == 11632 ||
- (uc >= 11776 && uc <= 11822) ||
- (uc >= 11824 && uc <= 11842) ||
- (uc >= 12289 && uc <= 12291) ||
- (uc >= 12296 && uc <= 12305) ||
- (uc >= 12308 && uc <= 12319) ||
- uc == 12336 ||
- uc == 12349 ||
- uc == 12448 ||
- uc == 12539 ||
- uc == 42238 ||
- uc == 42239 ||
- (uc >= 42509 && uc <= 42511) ||
- uc == 42611 ||
- uc == 42622 ||
- (uc >= 42738 && uc <= 42743) ||
- (uc >= 43124 && uc <= 43127) ||
- uc == 43214 ||
- uc == 43215 ||
- (uc >= 43256 && uc <= 43258) ||
- uc == 43310 ||
- uc == 43311 ||
- uc == 43359 ||
- (uc >= 43457 && uc <= 43469) ||
- uc == 43486 ||
- uc == 43487 ||
- (uc >= 43612 && uc <= 43615) ||
- uc == 43742 ||
- uc == 43743 ||
- uc == 43760 ||
- uc == 43761 ||
- uc == 44011 ||
- uc == 64830 ||
- uc == 64831 ||
- (uc >= 65040 && uc <= 65049) ||
- (uc >= 65072 && uc <= 65106) ||
- (uc >= 65108 && uc <= 65121) ||
- uc == 65123 ||
- uc == 65128 ||
- uc == 65130 ||
- uc == 65131 ||
- (uc >= 65281 && uc <= 65283) ||
- (uc >= 65285 && uc <= 65290) ||
- (uc >= 65292 && uc <= 65295) ||
- uc == 65306 ||
- uc == 65307 ||
- uc == 65311 ||
- uc == 65312 ||
- (uc >= 65339 && uc <= 65341) ||
- uc == 65343 ||
- uc == 65371 ||
- uc == 65373 ||
- (uc >= 65375 && uc <= 65381) ||
- (uc >= 65792 && uc <= 65794) ||
- uc == 66463 ||
- uc == 66512 ||
- uc == 66927 ||
- uc == 67671 ||
- uc == 67871 ||
- uc == 67903 ||
- (uc >= 68176 && uc <= 68184) ||
- uc == 68223 ||
- (uc >= 68336 && uc <= 68342) ||
- (uc >= 68409 && uc <= 68415) ||
- (uc >= 68505 && uc <= 68508) ||
- (uc >= 69703 && uc <= 69709) ||
- uc == 69819 ||
- uc == 69820 ||
- (uc >= 69822 && uc <= 69825) ||
- (uc >= 69952 && uc <= 69955) ||
- uc == 70004 ||
- uc == 70005 ||
- (uc >= 70085 && uc <= 70088) ||
- uc == 70093 ||
- (uc >= 70200 && uc <= 70205) ||
- uc == 70854 ||
- (uc >= 71105 && uc <= 71113) ||
- (uc >= 71233 && uc <= 71235) ||
- (uc >= 74864 && uc <= 74868) ||
- uc == 92782 ||
- uc == 92783 ||
- uc == 92917 ||
- (uc >= 92983 && uc <= 92987) ||
- uc == 92996 ||
- uc == 113823);
-}
generated by cgit v1.2.3 (git 2.46.0) at 2025-03-22 08:22:22 +0000