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00007 #include <stdlib.h>
00008 #include <stdio.h>
00009
00010 #include <utf8latin1.h>
00011
00012 UTF8Latin1::UTF8Latin1(char rchar) : replacementChar(rchar) {
00013 }
00014
00015
00016 char UTF8Latin1::ProcessText(char *text, int maxlen, const SWKey *key, const SWModule *module)
00017 {
00018 unsigned char *from;
00019 unsigned short *to;
00020
00021 int len;
00022 unsigned long uchar;
00023 unsigned char significantFirstBits, subsequent;
00024
00025 len = strlen(text) + 1;
00026 if (len < maxlen) {
00027 memmove(&text[maxlen - len], text, len);
00028 from = (unsigned char*)&text[maxlen - len];
00029 }
00030 else
00031 from = (unsigned char*)text;
00032
00033
00034
00035
00036 for (to = (unsigned short*)text; *from; from++) {
00037 uchar = 0;
00038 if ((*from & 128) != 128) {
00039
00040 uchar = *from;
00041 }
00042 else if ((*from & 128) && ((*from & 64) != 64)) {
00043
00044 continue;
00045 }
00046 else {
00047 *from <<= 1;
00048 for (subsequent = 1; (*from & 128); subsequent++) {
00049 *from <<= 1;
00050 from[subsequent] &= 63;
00051 uchar <<= 6;
00052 uchar |= from[subsequent];
00053 }
00054 subsequent--;
00055 *from <<=1;
00056 significantFirstBits = 8 - (2+subsequent);
00057
00058 uchar |= (((short)*from) << (((6*subsequent)+significantFirstBits)-8));
00059 from += subsequent;
00060 }
00061
00062 if (uchar < 0xff) {
00063 *to++ = (unsigned char)uchar;
00064 }
00065 else {
00066 *to++ = replacementChar;
00067 }
00068 }
00069 *to++ = 0;
00070 *to = 0;
00071
00072 return 0;
00073 }
00074