diff options
Diffstat (limited to 'src/utf.c')
-rw-r--r-- | src/utf.c | 29 |
1 files changed, 29 insertions, 0 deletions
@@ -106,6 +106,35 @@ static const unsigned char sqlite3Utf8Trans1[] = { } /* +** Write a single UTF8 character whose value is v into the +** buffer starting at zOut. zOut must be sized to hold at +** least for bytes. Return the number of bytes needed +** to encode the new character. +*/ +int sqlite3AppendOneUtf8Character(char *zOut, u32 v){ + if( v<0x00080 ){ + zOut[0] = (u8)(v & 0xff); + return 1; + } + if( v<0x00800 ){ + zOut[0] = 0xc0 + (u8)((v>>6) & 0x1f); + zOut[1] = 0x80 + (u8)(v & 0x3f); + return 2; + } + if( v<0x10000 ){ + zOut[0] = 0xe0 + (u8)((v>>12) & 0x0f); + zOut[1] = 0x80 + (u8)((v>>6) & 0x3f); + zOut[2] = 0x80 + (u8)(v & 0x3f); + return 3; + } + zOut[0] = 0xf0 + (u8)((v>>18) & 0x07); + zOut[1] = 0x80 + (u8)((v>>12) & 0x3f); + zOut[2] = 0x80 + (u8)((v>>6) & 0x3f); + zOut[3] = 0x80 + (u8)(v & 0x3f); + return 4; +} + +/* ** Translate a single UTF-8 character. Return the unicode value. ** ** During translation, assume that the byte that zTerm points |