25개 이상의 토픽을 선택하실 수 없습니다.
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
146 lines
3.5 KiB
146 lines
3.5 KiB
//
|
|
// C++ Implementation: btstringmgr
|
|
//
|
|
// Description:
|
|
//
|
|
//
|
|
// Author: The BibleTime team <info@bibletime.info>, (C) 2004
|
|
//
|
|
// Copyright: See COPYING file that comes with this distribution
|
|
//
|
|
//
|
|
|
|
#include "btstringmgr.h"
|
|
|
|
//System includes
|
|
#include <ctype.h>
|
|
|
|
char* BTStringMgr::upperUTF8(char* text, unsigned int maxlen) const {
|
|
const int max = (maxlen>0) ? maxlen : strlen(text);
|
|
|
|
if (isUtf8(text)) {
|
|
strncpy(text, (const char*)TQString::fromUtf8(text).upper().utf8(), max);
|
|
|
|
return text;
|
|
}
|
|
else {
|
|
char* ret = text;
|
|
|
|
while (*text) {
|
|
*text = toupper(*text);
|
|
text++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
return text;
|
|
}
|
|
|
|
char* BTStringMgr::upperLatin1(char* text, unsigned int max) const {
|
|
char* ret = text;
|
|
|
|
while (*text) {
|
|
*text = toupper(*text);
|
|
text++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
bool BTStringMgr::supportsUnicode() const {
|
|
return true;
|
|
}
|
|
|
|
const bool BTStringMgr::isUtf8(const char *buf) const {
|
|
int i, n;
|
|
register unsigned char c;
|
|
bool gotone = false;
|
|
|
|
#define F 0 /* character never appears in text */
|
|
#define T 1 /* character appears in plain ASCII text */
|
|
#define I 2 /* character appears in ISO-8859 text */
|
|
#define X 3 /* character appears in non-ISO extended ASCII (Mac, IBM PC) */
|
|
|
|
static const unsigned char text_chars[256] = {
|
|
/* BEL BS HT LF FF CR */
|
|
F, F, F, F, F, F, F, T, T, T, T, F, T, T, F, F, /* 0x0X */
|
|
/* ESC */
|
|
F, F, F, F, F, F, F, F, F, F, F, T, F, F, F, F, /* 0x1X */
|
|
T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x2X */
|
|
T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x3X */
|
|
T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x4X */
|
|
T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x5X */
|
|
T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x6X */
|
|
T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, F, /* 0x7X */
|
|
/* NEL */
|
|
X, X, X, X, X, T, X, X, X, X, X, X, X, X, X, X, /* 0x8X */
|
|
X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, /* 0x9X */
|
|
I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xaX */
|
|
I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xbX */
|
|
I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xcX */
|
|
I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xdX */
|
|
I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xeX */
|
|
I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I /* 0xfX */
|
|
};
|
|
|
|
/* *ulen = 0; */
|
|
|
|
for (i = 0; (c = buf[i]); i++) {
|
|
if ((c & 0x80) == 0) { /* 0xxxxxxx is plain ASCII */
|
|
/*
|
|
* Even if the whole file is valid UTF-8 sequences,
|
|
* still reject it if it uses weird control characters.
|
|
*/
|
|
|
|
if (text_chars[c] != T)
|
|
return false;
|
|
|
|
}
|
|
else if ((c & 0x40) == 0) { /* 10xxxxxx never 1st byte */
|
|
return false;
|
|
}
|
|
else { /* 11xxxxxx begins UTF-8 */
|
|
int following;
|
|
|
|
if ((c & 0x20) == 0) { /* 110xxxxx */
|
|
following = 1;
|
|
}
|
|
else if ((c & 0x10) == 0) { /* 1110xxxx */
|
|
following = 2;
|
|
}
|
|
else if ((c & 0x08) == 0) { /* 11110xxx */
|
|
following = 3;
|
|
}
|
|
else if ((c & 0x04) == 0) { /* 111110xx */
|
|
following = 4;
|
|
}
|
|
else if ((c & 0x02) == 0) { /* 1111110x */
|
|
following = 5;
|
|
}
|
|
else
|
|
return false;
|
|
|
|
for (n = 0; n < following; n++) {
|
|
i++;
|
|
|
|
if (!(c = buf[i]))
|
|
goto done;
|
|
|
|
if ((c & 0x80) == 0 || (c & 0x40))
|
|
return false;
|
|
}
|
|
|
|
gotone = true;
|
|
}
|
|
}
|
|
|
|
done:
|
|
return gotone; /* don't claim it's UTF-8 if it's all 7-bit */
|
|
}
|
|
|
|
#undef F
|
|
#undef T
|
|
#undef I
|
|
#undef X
|