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Refactored tags so we can emit secondary tags (and named local tags)

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This commit is contained in:
Jesse Beder
2010-10-28 23:06:16 +00:00
parent d508203ed8
commit a6afaabcb0
4 changed files with 70 additions and 27 deletions
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32
src/emitter.cpp
View File

@@ -680,27 +680,31 @@ namespace YAML
{
if(!good())
return *this;
EmitTag(tag.verbatim, tag);
return *this;
}
void Emitter::EmitTag(bool verbatim, const _Tag& tag)
{
PreAtomicWrite();
EmitSeparationIfNecessary();
if(!Utils::WriteTag(m_stream, tag.content, verbatim)) {
bool success = false;
if(tag.type == _Tag::Type::Verbatim)
success = Utils::WriteTag(m_stream, tag.content, true);
else if(tag.type == _Tag::Type::PrimaryHandle)
success = Utils::WriteTag(m_stream, tag.content, false);
else
success = Utils::WriteTagWithPrefix(m_stream, tag.prefix, tag.content);
if(!success) {
m_pState->SetError(ErrorMsg::INVALID_TAG);
return;
return *this;
}
m_pState->RequireSeparation();
// Note: no PostAtomicWrite() because we need another value for this node
return *this;
}
void Emitter::EmitKindTag()
{
_Tag tag("");
EmitTag(false, tag);
Write(LocalTag(""));
}
Emitter& Emitter::Write(const _Comment& comment)
@@ -727,10 +731,10 @@ namespace YAML
Emitter& Emitter::Write(const _Binary& binary)
{
Write(SecondaryTag("binary"));
if(!good())
return *this;
// TODO: write tag !!binary
PreAtomicWrite();
EmitSeparationIfNecessary();

30
src/emitterutils.cpp
View File

@@ -314,6 +314,36 @@ namespace YAML
return true;
}
bool WriteTagWithPrefix(ostream& out, const std::string& prefix, const std::string& tag)
{
out << "!";
StringCharSource prefixBuffer(prefix.c_str(), prefix.size());
while(prefixBuffer) {
int n = Exp::URI().Match(prefixBuffer);
if(n <= 0)
return false;
while(--n >= 0) {
out << prefixBuffer[0];
++prefixBuffer;
}
}
out << "!";
StringCharSource tagBuffer(tag.c_str(), tag.size());
while(tagBuffer) {
int n = Exp::Tag().Match(tagBuffer);
if(n <= 0)
return false;
while(--n >= 0) {
out << tagBuffer[0];
++tagBuffer;
}
}
return true;
}
bool WriteBinary(ostream& out, const char *data, std::size_t size)
{
static const char encoding[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

1
src/emitterutils.h
View File

@@ -19,6 +19,7 @@ namespace YAML
bool WriteAlias(ostream& out, const std::string& str);
bool WriteAnchor(ostream& out, const std::string& str);
bool WriteTag(ostream& out, const std::string& str, bool verbatim);
bool WriteTagWithPrefix(ostream& out, const std::string& prefix, const std::string& tag);
bool WriteBinary(ostream& out, const char *data, std::size_t size);
}
}