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Factorisation

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Patrick Pelissier committed 2017-12-09 16:36:46 +01:00
1 parent ccb6fd6fb2
commit 5f98cc1eb6
1 file changed
+24 -19
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m-string.h
+24 -19
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@@ -881,6 +881,29 @@ static inline size_t stringi_utf8_length(const char str[])
return size;
}
static inline void stringi_utf8_encode(char buffer[5], string_unicode_t u)
{
if (M_LIKELY (u <= 0x7F)) {
buffer[0] = u;
buffer[1] = 0;
} else if (u <= 0x7FF) {
buffer[0] = 0xC0 | (u >> 6);
buffer[1] = 0x80 | (u & 0x3F);
buffer[2] = 0;
} else if (u <= 0xFFFF) {
buffer[0] = 0xE0 | (u >> 12);
buffer[1] = 0x80 | ((u >> 6) & 0x3F);
buffer[2] = 0x80 | (u & 0x3F);
buffer[3] = 0;
} else {
buffer[0] = 0xF0 | (u >> 18);
buffer[1] = 0x80 | ((u >> 12) & 0x3F);
buffer[2] = 0x80 | ((u >> 6) & 0x3F);
buffer[3] = 0x80 | (u & 0x3F);
buffer[4] = 0;
}
}
typedef struct {
string_unicode_t u;
const char *ptr;
@@ -929,25 +952,7 @@ static inline void
string_push_u (string_t str, string_unicode_t u)
{
char buffer[4+1];
if (M_LIKELY (u <= 0x7F)) {
buffer[0] = u;
buffer[1] = 0;
} else if (u <= 0x7FF) {
buffer[0] = 0xC0 | (u >> 6);
buffer[1] = 0x80 | (u & 0x3F);
buffer[2] = 0;
} else if (u <= 0xFFFF) {
buffer[0] = 0xE0 | (u >> 12);
buffer[1] = 0x80 | ((u >> 6) & 0x3F);
buffer[2] = 0x80 | (u & 0x3F);
buffer[3] = 0;
} else {
buffer[0] = 0xF0 | (u >> 18);
buffer[1] = 0x80 | ((u >> 12) & 0x3F);
buffer[2] = 0x80 | ((u >> 6) & 0x3F);
buffer[3] = 0x80 | (u & 0x3F);
buffer[4] = 0;
}
stringi_utf8_encode(buffer, u);
string_cat_str(str, buffer);
}