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gf-core/src/runtime/c/gu/utf8.h

47 lines
901 B
C

#ifndef GU_UTF8_H_
#define GU_UTF8_H_
#include <gu/in.h>
#include <gu/out.h>
#include <gu/ucs.h>
inline GuUCS
gu_in_utf8(GuIn* in, GuExn* err)
{
int i = gu_in_peek_u8(in);
if (i >= 0 && i < 0x80) {
gu_in_consume(in, 1);
return (GuUCS) i;
}
extern GuUCS gu_in_utf8_(GuIn* in, GuExn* err);
return gu_in_utf8_(in, err);
}
inline void
gu_out_utf8(GuUCS ucs, GuOut* out, GuExn* err)
{
gu_require(gu_ucs_valid(ucs));
if (GU_LIKELY(ucs < 0x80)) {
gu_out_u8(out, ucs, err);
} else {
extern void gu_out_utf8_(GuUCS ucs, GuOut* out, GuExn* err);
gu_out_utf8_(ucs, out, err);
}
}
// Helper functions used in other modules
GuUCS
gu_utf8_decode(const uint8_t** utf8);
void
gu_in_utf8_buf(uint8_t** buf, GuIn* in, GuExn* err);
static inline bool
gu_is_space(uint8_t c) {
return (c == '\t' || c == '\n' || c == '\v' ||
c == '\f' || c == '\r' || c == ' ');
}
#endif // GU_UTF8_H_