int
_RkReadHeader(int fd, struct HD *hd, off_t off_from_top)
{
unsigned char *src;
unsigned long len, off;
int i, tmpres;
long hdrsize;
#ifdef WIN
DWORD readsize;
#endif
for (i = 0; i < HD_MAXTAG; i++) {
hd->data[i].var = 0;
hd->flag[i] = 0;
}
/* ¼¡¤Î off_from_top ¤Î·×»»¤¬¤¦¤µ¤ó¤¯¤µ¤¤¤¾ */
tmpres = lseek(fd, off_from_top, 0);
if (tmpres < 0) {
RkSetErrno(RK_ERRNO_EACCES);
goto read_err;
}
hdrsize = read(fd, (char *)localbuffer, RK_MAX_HDRSIZ);
if (hdrsize <= ((long) 0)) {
RkSetErrno(RK_ERRNO_EACCES);
goto read_err;
}
for (src = localbuffer; src < (localbuffer + hdrsize);) {
if (isEndTag(src))
break;
for (i = 0; i < HD_MAXTAG; i++) {
if (!strncmp((char *)src, Hdrtag[i], HD_TAGSIZ))
break;
}
if (i == HD_MAXTAG)
goto read_err;
src += HD_TAGSIZ;
len = bst4_to_l(src);
src += HD_TAGSIZ;
off = bst4_to_l(src);
src += HD_TAGSIZ;
if (hd->flag[i] != 0)
goto read_err;
if (len == 0) {
hd->flag[i] = -1;
hd->data[i].var = off;
} else {
hd->flag[i] = len;
if (!(hd->data[i].ptr = (unsigned char *)malloc((size_t) (len + 1)))) {
RkSetErrno(RK_ERRNO_NOMEM);
goto read_err;
}
if (off < (unsigned long)hdrsize) {
memcpy(hd->data[i].ptr, localbuffer + off, (size_t) len);
} else {
tmpres = lseek(fd, off_from_top + off, 0);
if (tmpres < 0) {
RkSetErrno(RK_ERRNO_EACCES);
goto read_err;
}
tmpres = read(fd, (char *)hd->data[i].ptr, (unsigned)len);
if (tmpres != (int)len) {
RkSetErrno(RK_ERRNO_EACCES);
goto read_err;
}
}
hd->data[i].ptr[len] = 0;
}
}
if (hd->data[HD_MAG].var != (long)bst4_to_l("CDIC")) {
goto read_err;
}
return 0;
read_err:
for (i = 0; i < HD_MAXTAG; i++) {
if (hd->flag[i] > 0)
free(hd->data[i].ptr);
hd->flag[i] = 0;
hd->data[i].var = 0;
}
return -1;
}
void SvgParser::parseElement()
{
bool hasAttributes = true;
int nameLength = 0;
while (!atEnd()) {
// check is element name ends with end tag
// namely do not have child elements and attributes
EndTagType endType = isEndTag(false);
if (endType != NotEnd) {
hasAttributes = false;
m_name = QString(str-nameLength, nameLength);
if (endType == EndType1)
str++;
else if (endType == EndType2) {
str += 2;
m_isPrevElemEnded = true;
}
break;
}
// if char is space than node name is ended
if (StringWalker::isSpace(str->unicode())) {
m_name = QString(str-nameLength, nameLength);
// check is element has end char after spaces
// and not attributes
skipSpaces();
endType = isEndTag();
if (endType != NotEnd) {
if (endType == EndType2)
m_isPrevElemEnded = true;
hasAttributes = false;
}
break;
}
nameLength++;
str++;
}
if (!hasAttributes)
return;
// parse attributes
// reserve memory for attributes
// 6 - is average attributes count
m_attrHash.reserve(6);
QChar quote;
QString attrName;
while (!atEnd()) {
nameLength = 0;
skipSpaces();
// data between ' ' and '=' is attribute name
while (!atEnd() && *str != QL1C('=')) {
nameLength++;
++str;
}
// ignore spaces in attribute name
attrName.clear();
uint attrId = hash(str-nameLength, nameLength);
if (!isDefaultAttribute(attrId))
attrName = QString(str-nameLength, nameLength);
// skip '='
str++;
skipSpaces();
if (!atEnd() && (*str == QL1C('\"') || *str == QL1C('\''))) {
quote = *str;
str++;
}
// data between quotes is attribute value
nameLength = 0;
while (!atEnd() && *str != quote) {
nameLength++;
str++;
}
// ignore empty attributes
if (nameLength > 0) {
if ( attrId == AttrId::transform
|| attrId == AttrId::gradientTransform
|| attrId == AttrId::patternTransform)
{
Transform ts(str-nameLength, nameLength);
if (ts.isValid())
m_attrHash.insert(AttrId::transform, SvgAttribute(ts));
} else {
QString attrValue = QString(str-nameLength, nameLength);
if (attrName.isEmpty()) {
if (attrId == AttrId::d)
m_attrHash.insert(AttrId::d,
SvgAttribute(PathSegmentList(), attrValue));
else
m_attrHash.insert(attrId, SvgAttribute(attrId, attrValue));
} else {
m_attrHash.insert(attrId, SvgAttribute(attrName, attrValue));
}
}
}
// skip quote char
str++;
skipSpaces();
EndTagType endType = isEndTag();
if (endType != NotEnd) {
if (endType == EndType2)
m_isPrevElemEnded = true;
break;
}
}
}
