bool nsMediaFragmentURIParser::ParseNPTSec(nsDependentSubstring& aString, double& aSec)
{
nsDependentSubstring original(aString);
if (aString.Length() == 0) {
return PR_FALSE;
}
PRUint32 index = FirstNonDigit(aString, 0);
if (index == 0) {
return PR_FALSE;
}
nsDependentSubstring n(aString, 0, index);
PRInt32 ec;
PRInt32 s = PromiseFlatString(n).ToInteger(&ec);
if (NS_FAILED(ec)) {
return PR_FALSE;
}
aString.Rebind(aString, index);
double fraction = 0.0;
if (!ParseNPTFraction(aString, fraction)) {
aString.Rebind(original, 0);
return PR_FALSE;
}
aSec = s + fraction;
return PR_TRUE;
}
bool nsMediaFragmentURIParser::ParseNPTSec(nsDependentSubstring& aString, double& aSec)
{
nsDependentSubstring original(aString);
if (aString.Length() == 0) {
return false;
}
uint32_t index = FirstNonDigit(aString, 0);
if (index == 0) {
return false;
}
nsDependentSubstring n(aString, 0, index);
nsresult ec;
int32_t s = PromiseFlatString(n).ToInteger(&ec);
if (NS_FAILED(ec)) {
return false;
}
aString.Rebind(aString, index);
double fraction = 0.0;
if (!ParseNPTFraction(aString, fraction)) {
aString.Rebind(original, 0);
return false;
}
aSec = s + fraction;
return true;
}
static bool ParseInteger(nsDependentSubstring& aString,
int32_t& aResult)
{
uint32_t index = FirstNonDigit(aString, 0);
if (index == 0) {
return false;
}
nsDependentSubstring n(aString, 0, index);
nsresult ec;
int32_t s = PromiseFlatString(n).ToInteger(&ec);
if (NS_FAILED(ec)) {
return false;
}
aString.Rebind(aString, index);
aResult = s;
return true;
}
bool nsMediaFragmentURIParser::ParseNPTFraction(nsDependentSubstring& aString, double& aFraction)
{
double fraction = 0.0;
if (aString.Length() > 0 && aString[0] == '.') {
PRUint32 index = FirstNonDigit(aString, 1);
if (index > 1) {
nsDependentSubstring number(aString, 0, index);
PRInt32 ec;
fraction = PromiseFlatString(number).ToDouble(&ec);
if (NS_FAILED(ec)) {
return PR_FALSE;
}
}
aString.Rebind(aString, index);
}
aFraction = fraction;
return PR_TRUE;
}
bool nsMediaFragmentURIParser::ParseNPTHH(nsDependentSubstring& aString, PRUint32& aHour)
{
if (aString.Length() == 0) {
return PR_FALSE;
}
PRUint32 index = FirstNonDigit(aString, 0);
if (index == 0) {
return PR_FALSE;
}
nsDependentSubstring n(aString, 0, index);
PRInt32 ec;
PRInt32 u = PromiseFlatString(n).ToInteger(&ec);
if (NS_FAILED(ec)) {
return PR_FALSE;
}
aString.Rebind(aString, index);
aHour = u;
return PR_TRUE;
}
bool nsMediaFragmentURIParser::ParseNPTHH(nsDependentSubstring& aString, uint32_t& aHour)
{
if (aString.Length() == 0) {
return false;
}
uint32_t index = FirstNonDigit(aString, 0);
if (index == 0) {
return false;
}
nsDependentSubstring n(aString, 0, index);
nsresult ec;
int32_t u = PromiseFlatString(n).ToInteger(&ec);
if (NS_FAILED(ec)) {
return false;
}
aString.Rebind(aString, index);
aHour = u;
return true;
}