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Finished parsing of basic data types (scalar, sequence, map).

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This commit is contained in:
Jesse Beder 2008-06-30 23:57:58 +00:00
parent c1966ba3fc
commit 121c2e577f
20 changed files with 434 additions and 221 deletions
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77
sequence.cpp
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@ -1,5 +1,7 @@
#include "sequence.h"
#include "node.h"
#include "scanner.h"
#include "token.h"
namespace YAML
{
@ -13,4 +15,79 @@ namespace YAML
for(unsigned i=0;i<m_data.size();i++)
delete m_data[i];
}
void Sequence::Parse(Scanner *pScanner)
{
// grab start token
Token *pToken = pScanner->GetNextToken();
switch(pToken->type) {
case TT_BLOCK_SEQ_START: ParseBlock(pScanner); break;
case TT_BLOCK_ENTRY: ParseImplicit(pScanner); break;
case TT_FLOW_SEQ_START: ParseFlow(pScanner); break;
}
delete pToken;
}
void Sequence::ParseBlock(Scanner *pScanner)
{
while(1) {
Token *pToken = pScanner->PeekNextToken();
if(!pToken)
break; // TODO: throw?
if(pToken->type != TT_BLOCK_ENTRY && pToken->type != TT_BLOCK_END)
break; // TODO: throw?
pScanner->PopNextToken();
if(pToken->type == TT_BLOCK_END)
break;
Node *pNode = new Node;
m_data.push_back(pNode);
pNode->Parse(pScanner);
}
}
void Sequence::ParseImplicit(Scanner *pScanner)
{
// TODO
}
void Sequence::ParseFlow(Scanner *pScanner)
{
while(1) {
Token *pToken = pScanner->PeekNextToken();
if(!pToken)
break; // TODO: throw?
// first check for end
if(pToken->type == TT_FLOW_SEQ_END) {
pScanner->PopNextToken();
break;
}
// then read the node
Node *pNode = new Node;
m_data.push_back(pNode);
pNode->Parse(pScanner);
// now eat the separator (or could be a sequence end, which we ignore - but if it's neither, then it's a bad node)
pToken = pScanner->PeekNextToken();
if(pToken->type == TT_FLOW_ENTRY)
pScanner->EatNextToken();
else if(pToken->type != TT_FLOW_SEQ_END)
break; // TODO: throw?
}
}
void Sequence::Write(std::ostream& out, int indent)
{
for(int i=0;i<indent;i++)
out << " ";
out << "{sequence}\n";
for(unsigned i=0;i<m_data.size();i++)
m_data[i]->Write(out, indent + 1);
}
}