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starting to review mdesk.h/c

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ed
2025-02-08 11:10:23 -05:00
parent 43baf82a8b
commit 68fadce5c6
21 changed files with 1166 additions and 1153 deletions
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code/base/strings.c
+7 -11
View File
@@ -1057,16 +1057,12 @@ str8_path_list_join_by_style_alloc(AllocatorInfo ainfo, String8List* path, PathS
////////////////////////////////
//~ rjf: UTF-8 & UTF-16 Decoding/Encoding
read_only global U8 utf8_class[32] = {
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,2,2,2,2,3,3,4,5,
};
UnicodeDecode
utf8_decode(U8* str, U64 max)
{
UnicodeDecode result = {1, MAX_U32};
U8 byte = str[0];
U8 byte_class = utf8_class[byte >> 3];
U8 byte_class = utf8_class(byte >> 3);
switch (byte_class)
{
case 1:
@@ -1080,7 +1076,7 @@ utf8_decode(U8* str, U64 max)
if (2 < max)
{
U8 cont_byte = str[1];
if (utf8_class[cont_byte >> 3] == 0)
if (utf8_class(cont_byte >> 3) == 0)
{
result.codepoint = (byte & BITMASK5) << 6;
result.codepoint |= (cont_byte & BITMASK6);
@@ -1095,8 +1091,8 @@ utf8_decode(U8* str, U64 max)
if (2 < max)
{
U8 cont_byte[2] = {str[1], str[2]};
if (utf8_class[cont_byte[0] >> 3] == 0 &&
utf8_class[cont_byte[1] >> 3] == 0)
if (utf8_class(cont_byte[0] >> 3) == 0 &&
utf8_class(cont_byte[1] >> 3) == 0)
{
result.codepoint = (byte & BITMASK4) << 12;
result.codepoint |= ((cont_byte[0] & BITMASK6) << 6);
@@ -1112,9 +1108,9 @@ utf8_decode(U8* str, U64 max)
if (3 < max)
{
U8 cont_byte[3] = {str[1], str[2], str[3]};
if (utf8_class[cont_byte[0] >> 3] == 0 &&
utf8_class[cont_byte[1] >> 3] == 0 &&
utf8_class[cont_byte[2] >> 3] == 0)
if (utf8_class(cont_byte[0] >> 3) == 0 &&
utf8_class(cont_byte[1] >> 3) == 0 &&
utf8_class(cont_byte[2] >> 3) == 0)
{
result.codepoint = (byte & BITMASK3) << 18;
result.codepoint |= ((cont_byte[0] & BITMASK6) << 12);
code/base/strings.h
+10
View File
@@ -822,6 +822,16 @@ MD_API String8 str8_path_list_join_by_style_alloc (AllocatorInfo ainfo, Str
////////////////////////////////
//~ rjf: UTF-8 & UTF-16 Decoding/Encoding
inline U8
utf8_class(U8 value)
{
read_only local_persist thread_local
U8 lookup_table[32] = {
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,2,2,2,2,3,3,4,5,
};
return lookup_table[value];
}
MD_API UnicodeDecode utf8_decode (U8* str, U64 max);
UnicodeDecode utf16_decode (U16* str, U64 max);
MD_API U32 utf8_encode (U8* str, U32 codepoint);