diff options
Diffstat (limited to 'sys/libunicode/encode.c')
-rw-r--r-- | sys/libunicode/encode.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/sys/libunicode/encode.c b/sys/libunicode/encode.c new file mode 100644 index 0000000..8f4d212 --- /dev/null +++ b/sys/libunicode/encode.c @@ -0,0 +1,31 @@ +#include "internal.h" + +int +utf8·encode(rune* r, byte* s) +{ + int i, j; + rune c; + + c = *r; + if(c <= Rune1) { + s[0] = c; + return 1; + } + + for(i = 2; i < UTFmax + 1; i++){ + if(i == 3){ + if(c > RuneMax) + c = RuneErr; + if(SurrogateMin <= c && c <= SurrogateMax) + c = RuneErr; + } + if(c <= RuneX(i) || i == UTFmax) { + s[0] = Tbyte(i) | (c >> (i - 1)*Bitx); + for(j = 1; j < i; j++) + s[j] = Tx | ((c >> (i - j - 1)*Bitx) & Maskx); + return i; + } + } + + return UTFmax; +} |