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Remove unneccesary dependancy

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Signed-off-by: Syed Daanish <me@syedm.dev>
This commit is contained in:
Syed Daanish
2026-01-29 15:00:57 +00:00
parent 17a04bdddc
commit 78949bc770
3 changed files with 40 additions and 40 deletions
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4
.gitmodules vendored
View File

@@ -2,7 +2,3 @@
path = libs/libgrapheme
url = git://git.suckless.org/libgrapheme
ignore = dirty
[submodule "libs/utfcpp"]
path = libs/utfcpp
url = https://github.com/nemtrif/utfcpp.git
ignore = dirty

1
libs/utfcpp vendored

Submodule libs/utfcpp deleted from cfc9112cee

75
src/utils/unicode.cc
View File

@@ -1,4 +1,3 @@
#include "utfcpp/source/utf8.h"
#include "utils/utils.h"
int display_width(const char *str, size_t len) {
@@ -99,42 +98,48 @@ uint32_t count_clusters(const char *line, size_t len, size_t from, size_t to) {
return count;
}
size_t utf8_offset_to_utf16(const char *utf8, size_t utf8_len,
size_t byte_offset) {
if (byte_offset > utf8_len)
return byte_offset;
const char *start = utf8;
const char *mid = utf8 + byte_offset;
if (!utf8::is_valid(start, mid))
assert(0 && "invalid utf8");
size_t utf16_offset = 0;
for (auto it = start; it < mid;) {
uint32_t codepoint = utf8::next(it, mid);
if (codepoint <= 0xFFFF)
utf16_offset += 1;
else
utf16_offset += 2;
size_t utf8_offset_to_utf16(const char *s, size_t utf8_len, size_t byte_pos) {
if (byte_pos > utf8_len)
return 0;
size_t utf16_units = 0;
size_t i = 0;
while (i < byte_pos) {
unsigned char c = s[i];
if ((c & 0x80) == 0x00) {
i += 1;
utf16_units += 1;
} else if ((c & 0xE0) == 0xC0) {
i += 2;
utf16_units += 1;
} else if ((c & 0xF0) == 0xE0) {
i += 3;
utf16_units += 1;
} else {
i += 4;
utf16_units += 2;
}
return utf16_offset;
}
return utf16_units;
}
size_t utf16_offset_to_utf8(const char *utf8, size_t utf8_len,
size_t utf16_offset) {
const char *start = utf8;
const char *end = utf8 + utf8_len;
const char *it = start;
size_t utf16_count = 0;
while (it < end) {
if (utf16_count >= utf16_offset)
break;
const char *prev = it;
uint32_t codepoint = utf8::next(it, end);
if (codepoint <= 0xFFFF)
utf16_count += 1;
else
utf16_count += 2;
if (utf16_count > utf16_offset)
return prev - start;
size_t utf16_offset_to_utf8(const char *s, size_t utf8_len, size_t utf16_pos) {
size_t utf16_units = 0;
size_t i = 0;
while (utf16_units < utf16_pos && i < utf8_len) {
unsigned char c = s[i];
if ((c & 0x80) == 0x00) {
i += 1;
utf16_units += 1;
} else if ((c & 0xE0) == 0xC0) {
i += 2;
utf16_units += 1;
} else if ((c & 0xF0) == 0xE0) {
i += 3;
utf16_units += 1;
} else {
i += 4;
utf16_units += 2;
}
return it - start;
}
return i;
}