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Added directives and tags.

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This commit is contained in:
Jesse Beder 2008-06-30 04:22:41 +00:00
parent 2b8628922f
commit 07d4cac48f
6 changed files with 120 additions and 159 deletions
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70
scanner.cpp
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@ -44,56 +44,6 @@ namespace YAML
return false;
}
// IsDocumentStart
bool Scanner::IsDocumentStart()
{
// needs to be at the start of a new line
if(INPUT.column != 0)
return false;
return Exp::DocStart.Matches(INPUT);
}
// IsDocumentEnd
bool Scanner::IsDocumentEnd()
{
// needs to be at the start of a new line
if(INPUT.column != 0)
return false;
return Exp::DocEnd.Matches(INPUT);
}
// IsBlockEntry
bool Scanner::IsBlockEntry()
{
return Exp::BlockEntry.Matches(INPUT);
}
// IsKey
bool Scanner::IsKey()
{
if(m_flowLevel > 0)
return Exp::KeyInFlow.Matches(INPUT);
return Exp::Key.Matches(INPUT);
}
// IsValue
bool Scanner::IsValue()
{
if(m_flowLevel > 0)
return Exp::ValueInFlow.Matches(INPUT);
return Exp::Value.Matches(INPUT);
}
// IsPlainScalar
bool Scanner::IsPlainScalar()
{
if(m_flowLevel > 0)
return Exp::PlainScalarInFlow.Matches(INPUT);
return Exp::PlainScalar.Matches(INPUT);
}
// ScanAndEnqueue
// . Scans the token, then pushes it in the queue.
// . Note: we also use a set of "limbo tokens", i.e., tokens
@ -136,11 +86,14 @@ namespace YAML
if(INPUT.peek() == EOF)
return ScanAndEnqueue(new StreamEndToken);
if(INPUT.column == 0 && INPUT.peek() == Keys::Directive)
return ScanAndEnqueue(new DirectiveToken);
// document token
if(IsDocumentStart())
if(INPUT.column == 0 && Exp::DocStart.Matches(INPUT))
return ScanAndEnqueue(new DocumentStartToken);
if(IsDocumentEnd())
if(INPUT.column == 0 && Exp::DocEnd.Matches(INPUT))
return ScanAndEnqueue(new DocumentEndToken);
// flow start/end/entry
@ -160,19 +113,22 @@ namespace YAML
return ScanAndEnqueue(new FlowEntryToken);
// block/map stuff
if(IsBlockEntry())
if(Exp::BlockEntry.Matches(INPUT))
return ScanAndEnqueue(new BlockEntryToken);
if(IsKey())
if((m_flowLevel == 0 ? Exp::Key : Exp::KeyInFlow).Matches(INPUT))
return ScanAndEnqueue(new KeyToken);
if(IsValue())
if((m_flowLevel == 0 ? Exp::Value : Exp::ValueInFlow).Matches(INPUT))
return ScanAndEnqueue(new ValueToken);
// alias/anchor
if(INPUT.peek() == Keys::Alias || INPUT.peek() == Keys::Anchor)
return ScanAndEnqueue(new AnchorToken);
// TODO: tag
// tag
if(INPUT.peek() == Keys::Tag)
return ScanAndEnqueue(new TagToken);
// special scalars
if(m_flowLevel == 0 && (INPUT.peek() == Keys::LiteralScalar || INPUT.peek() == Keys::FoldedScalar))
@ -182,7 +138,7 @@ namespace YAML
return ScanAndEnqueue(new QuotedScalarToken);
// plain scalars
if(IsPlainScalar())
if((m_flowLevel == 0 ? Exp::PlainScalar : Exp::PlainScalarInFlow).Matches(INPUT))
return ScanAndEnqueue(new PlainScalarToken);
// don't know what it is!