// VerifySimpleKey
// . Determines whether the latest simple key to be added is valid,
// and if so, makes it valid.
bool Scanner::VerifySimpleKey()
{
if(m_simpleKeys.empty())
return false;
// grab top key
SimpleKey key = m_simpleKeys.top();
// only validate if we're in the correct flow level
if(key.flowLevel != GetFlowLevel())
return false;
m_simpleKeys.pop();
bool isValid = true;
// needs to be less than 1024 characters and inline
if(INPUT.line() != key.mark.line || INPUT.pos() - key.mark.pos > 1024)
isValid = false;
// invalidate key
if(isValid)
key.Validate();
else
key.Invalidate();
return isValid;
}
// VerifySimpleKey
// . Determines whether the latest simple key to be added is valid,
// and if so, makes it valid.
// . If 'force' is true, then we'll pop no matter what (whether we can verify it or not).
bool Scanner::VerifySimpleKey(bool force)
{
m_isLastKeyValid = false;
if(m_simpleKeys.empty())
return m_isLastKeyValid;
// grab top key
SimpleKey key = m_simpleKeys.top();
// only validate if we're in the correct flow level
if(key.flowLevel != m_flowLevel) {
if(force)
m_simpleKeys.pop();
return false;
}
m_simpleKeys.pop();
bool isValid = true;
// needs to be followed immediately by a value
if(m_flowLevel > 0 && !Exp::ValueInFlow.Matches(INPUT))
isValid = false;
if(m_flowLevel == 0 && !Exp::Value.Matches(INPUT))
isValid = false;
// also needs to be less than 1024 characters and inline
if(INPUT.line != key.line || INPUT.pos() - key.pos > 1024)
isValid = false;
// invalidate key
if(isValid)
key.Validate();
else
key.Invalidate();
// In block style, remember that we've pushed an indent for this potential simple key (if it was starting).
// If it was invalid, then we need to pop it off.
// Note: we're guaranteed to be popping the right one (i.e., there couldn't have been anything in
// between) since keys have to be inline, and will be invalidated immediately on a newline.
if(!isValid && m_flowLevel == 0)
m_indents.pop();
m_isLastKeyValid = isValid;
return isValid;
}