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Diffstat (limited to 'yaml-cpp/src/emitterstate.cpp')
| -rwxr-xr-x | yaml-cpp/src/emitterstate.cpp | 284 |
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; + } +} + |