diff options
Diffstat (limited to 'bstr.h')
| -rw-r--r-- | bstr.h | 13 |
1 files changed, 13 insertions, 0 deletions
@@ -69,6 +69,19 @@ double bstrtod(struct bstr str, struct bstr *rest); void bstr_lower(struct bstr str); int bstr_sscanf(struct bstr str, const char *format, ...); +// Decode the UTF-8 code point at the start of the string,, and return the +// character. +// After calling this function, *out_next will point to the next character. +// out_next can be NULL. +// On error, -1 is returned, and *out_next is not modified. +int bstr_decode_utf8(struct bstr str, struct bstr *out_next); + +// Return the length of the UTF-8 sequence that starts with the given byte. +// Given a string char *s, the next UTF-8 code point is to be expected at +// s + bstr_parse_utf8_code_length(s[0]) +// On error, -1 is returned. On success, it returns a value in the range [1, 4]. +int bstr_parse_utf8_code_length(unsigned char b); + static inline struct bstr bstr_cut(struct bstr str, int n) { if (n > str.len) |