x_strbuilder_append_utf8_substring
Appends a UTF-8 substring by code-point range
void x_strbuilder_append_utf8_substring(
XStrBuilder *sb,
const char *utf8,
size_t start_cp,
size_t len_cp
);Parameters
XStrBuilder *sb- Destination builder
const char *utf8- Source UTF-8 string
size_t start_cp- Start code-point index
size_t len_cp- Number of code points to append