void IniStream::edit(std::wstring const& section, std::wstring const& key, std::wstring const& str) {
clearErr();
if (false == WritePrivateProfileString(section.c_str(), key.c_str(), str.c_str(), this->filefullpath.c_str())) {
throw std::runtime_error("IniStream::edit : " + getLastErrorText());
}
}
char *SeekableReadStream::readLine(char *buf, size_t bufSize) {
assert(buf != 0 && bufSize > 1);
char *p = buf;
size_t len = 0;
char c = 0;
// If end-of-file occurs before any characters are read, return NULL
// and the buffer contents remain unchanged.
if (eos() || err()) {
return 0;
}
// Loop as long as there is still free space in the buffer,
// and the line has not ended
while (len + 1 < bufSize && c != LF) {
c = readByte();
if (eos()) {
// If end-of-file occurs before any characters are read, return
// NULL and the buffer contents remain unchanged.
if (len == 0)
return 0;
break;
}
// If an error occurs, return NULL and the buffer contents
// are indeterminate.
if (err())
return 0;
// Check for CR or CR/LF
// * DOS and Windows use CRLF line breaks
// * Unix and OS X use LF line breaks
// * Macintosh before OS X used CR line breaks
if (c == CR) {
// Look at the next char -- is it LF? If not, seek back
c = readByte();
if (err()) {
return 0; // error: the buffer contents are indeterminate
}
if (eos()) {
// The CR was the last character in the file.
// Reset the eos() flag since we successfully finished a line
clearErr();
} else if (c != LF) {
seek(-1, SEEK_CUR);
}
// Treat CR & CR/LF as plain LF
c = LF;
}
*p++ = c;
len++;
}
// We always terminate the buffer if no error occurred
*p = 0;
return buf;
}