first version

1 files changed, 284 insertions, 0 deletions

diff --git a/yaml-cpp/src/emitterstate.cpp b/yaml-cpp/src/emitterstate.cpp
new file mode 100755
index 00000000..562e82c9
--- /dev/null
+++ b/yaml-cpp/src/emitterstate.cpp
@@ -0,0 +1,284 @@
+#include "emitterstate.h"
+#include "yaml-cpp/exceptions.h"
+#include <limits>
+
+namespace YAML
+{
+	EmitterState::EmitterState(): m_isGood(true), m_curIndent(0), m_requiresSoftSeparation(false), m_requiresHardSeparation(false)
+	{
+		// start up
+		m_stateStack.push(ES_WAITING_FOR_DOC);
+		
+		// set default global manipulators
+		m_charset.set(EmitNonAscii);
+		m_strFmt.set(Auto);
+		m_boolFmt.set(TrueFalseBool);
+		m_boolLengthFmt.set(LongBool);
+		m_boolCaseFmt.set(LowerCase);
+		m_intFmt.set(Dec);
+		m_indent.set(2);
+		m_preCommentIndent.set(2);
+		m_postCommentIndent.set(1);
+		m_seqFmt.set(Block);
+		m_mapFmt.set(Block);
+		m_mapKeyFmt.set(Auto);
+        m_floatPrecision.set(6);
+        m_doublePrecision.set(15);
+	}
+	
+	EmitterState::~EmitterState()
+	{
+	}
+
+	// SetLocalValue
+	// . We blindly tries to set all possible formatters to this value
+	// . Only the ones that make sense will be accepted
+	void EmitterState::SetLocalValue(EMITTER_MANIP value)
+	{
+		SetOutputCharset(value, LOCAL);
+		SetStringFormat(value, LOCAL);
+		SetBoolFormat(value, LOCAL);
+		SetBoolCaseFormat(value, LOCAL);
+		SetBoolLengthFormat(value, LOCAL);
+		SetIntFormat(value, LOCAL);
+		SetFlowType(GT_SEQ, value, LOCAL);
+		SetFlowType(GT_MAP, value, LOCAL);
+		SetMapKeyFormat(value, LOCAL);
+	}
+	
+	void EmitterState::BeginGroup(GROUP_TYPE type)
+	{
+		unsigned lastIndent = (m_groups.empty() ? 0 : m_groups.top().indent);
+		m_curIndent += lastIndent;
+		
+		std::auto_ptr<Group> pGroup(new Group(type));
+		
+		// transfer settings (which last until this group is done)
+		pGroup->modifiedSettings = m_modifiedSettings;
+
+		// set up group
+		pGroup->flow = GetFlowType(type);
+		pGroup->indent = GetIndent();
+		pGroup->usingLongKey = (GetMapKeyFormat() == LongKey ? true : false);
+
+		m_groups.push(pGroup);
+	}
+	
+	void EmitterState::EndGroup(GROUP_TYPE type)
+	{
+		if(m_groups.empty())
+			return SetError(ErrorMsg::UNMATCHED_GROUP_TAG);
+		
+		// get rid of the current group
+		{
+			std::auto_ptr<Group> pFinishedGroup = m_groups.pop();
+			if(pFinishedGroup->type != type)
+				return SetError(ErrorMsg::UNMATCHED_GROUP_TAG);
+		}
+
+		// reset old settings
+		unsigned lastIndent = (m_groups.empty() ? 0 : m_groups.top().indent);
+		assert(m_curIndent >= lastIndent);
+		m_curIndent -= lastIndent;
+		
+		// some global settings that we changed may have been overridden
+		// by a local setting we just popped, so we need to restore them
+		m_globalModifiedSettings.restore();
+	}
+		
+	GROUP_TYPE EmitterState::GetCurGroupType() const
+	{
+		if(m_groups.empty())
+			return GT_NONE;
+		
+		return m_groups.top().type;
+	}
+	
+	FLOW_TYPE EmitterState::GetCurGroupFlowType() const
+	{
+		if(m_groups.empty())
+			return FT_NONE;
+		
+		return (m_groups.top().flow == Flow ? FT_FLOW : FT_BLOCK);
+	}
+	
+	bool EmitterState::CurrentlyInLongKey()
+	{
+		if(m_groups.empty())
+			return false;
+		return m_groups.top().usingLongKey;
+	}
+	
+	void EmitterState::StartLongKey()
+	{
+		if(!m_groups.empty())
+			m_groups.top().usingLongKey = true;
+	}
+	
+	void EmitterState::StartSimpleKey()
+	{
+		if(!m_groups.empty())
+			m_groups.top().usingLongKey = false;
+	}
+
+	void EmitterState::ClearModifiedSettings()
+	{
+		m_modifiedSettings.clear();
+	}
+
+	bool EmitterState::SetOutputCharset(EMITTER_MANIP value, FMT_SCOPE scope)
+	{
+		switch(value) {
+			case EmitNonAscii:
+			case EscapeNonAscii:
+				_Set(m_charset, value, scope);
+				return true;
+			default:
+				return false;
+		}
+	}
+	
+	bool EmitterState::SetStringFormat(EMITTER_MANIP value, FMT_SCOPE scope)
+	{
+		switch(value) {
+			case Auto:
+			case SingleQuoted:
+			case DoubleQuoted:
+			case Literal:
+				_Set(m_strFmt, value, scope);
+				return true;
+			default:
+				return false;
+		}
+	}
+	
+	bool EmitterState::SetBoolFormat(EMITTER_MANIP value, FMT_SCOPE scope)
+	{
+		switch(value) {
+			case OnOffBool:
+			case TrueFalseBool:
+			case YesNoBool:
+				_Set(m_boolFmt, value, scope);
+				return true;
+			default:
+				return false;
+		}
+	}
+
+	bool EmitterState::SetBoolLengthFormat(EMITTER_MANIP value, FMT_SCOPE scope)
+	{
+		switch(value) {
+			case LongBool:
+			case ShortBool:
+				_Set(m_boolLengthFmt, value, scope);
+				return true;
+			default:
+				return false;
+		}
+	}
+
+	bool EmitterState::SetBoolCaseFormat(EMITTER_MANIP value, FMT_SCOPE scope)
+	{
+		switch(value) {
+			case UpperCase:
+			case LowerCase:
+			case CamelCase:
+				_Set(m_boolCaseFmt, value, scope);
+				return true;
+			default:
+				return false;
+		}
+	}
+
+	bool EmitterState::SetIntFormat(EMITTER_MANIP value, FMT_SCOPE scope)
+	{
+		switch(value) {
+			case Dec:
+			case Hex:
+			case Oct:
+				_Set(m_intFmt, value, scope);
+				return true;
+			default:
+				return false;
+		}
+	}
+
+	bool EmitterState::SetIndent(unsigned value, FMT_SCOPE scope)
+	{
+		if(value == 0)
+			return false;
+		
+		_Set(m_indent, value, scope);
+		return true;
+	}
+
+	bool EmitterState::SetPreCommentIndent(unsigned value, FMT_SCOPE scope)
+	{
+		if(value == 0)
+			return false;
+		
+		_Set(m_preCommentIndent, value, scope);
+		return true;
+	}
+	
+	bool EmitterState::SetPostCommentIndent(unsigned value, FMT_SCOPE scope)
+	{
+		if(value == 0)
+			return false;
+		
+		_Set(m_postCommentIndent, value, scope);
+		return true;
+	}
+
+	bool EmitterState::SetFlowType(GROUP_TYPE groupType, EMITTER_MANIP value, FMT_SCOPE scope)
+	{
+		switch(value) {
+			case Block:
+			case Flow:
+				_Set(groupType == GT_SEQ ? m_seqFmt : m_mapFmt, value, scope);
+				return true;
+			default:
+				return false;
+		}
+	}
+
+	EMITTER_MANIP EmitterState::GetFlowType(GROUP_TYPE groupType) const
+	{
+		// force flow style if we're currently in a flow
+		FLOW_TYPE flowType = GetCurGroupFlowType();
+		if(flowType == FT_FLOW)
+			return Flow;
+		
+		// otherwise, go with what's asked of use
+		return (groupType == GT_SEQ ? m_seqFmt.get() : m_mapFmt.get());
+	}
+	
+	bool EmitterState::SetMapKeyFormat(EMITTER_MANIP value, FMT_SCOPE scope)
+	{
+		switch(value) {
+			case Auto:
+			case LongKey:
+				_Set(m_mapKeyFmt, value, scope);
+				return true;
+			default:
+				return false;
+		}
+	}
+
+    bool EmitterState::SetFloatPrecision(int value, FMT_SCOPE scope)
+    {
+        if(value < 0 || value > std::numeric_limits<float>::digits10)
+            return false;
+        _Set(m_floatPrecision, value, scope);
+        return true;
+    }
+    
+    bool EmitterState::SetDoublePrecision(int value, FMT_SCOPE scope)
+    {
+        if(value < 0 || value > std::numeric_limits<double>::digits10)
+            return false;
+        _Set(m_doublePrecision, value, scope);
+        return true;
+    }
+}
+