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#include <limits>
#include "emitterstate.h"
#include "yaml-cpp/exceptions.h" // IWYU pragma: keep
namespace YAML {
EmitterState::EmitterState()
: m_isGood(true),
m_curIndent(0),
m_hasAnchor(false),
m_hasTag(false),
m_hasNonContent(false),
m_docCount(0) {
// 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(std::numeric_limits<float>::digits10 + 1);
m_doublePrecision.set(std::numeric_limits<double>::digits10 + 1);
}
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, FmtScope::Local);
SetStringFormat(value, FmtScope::Local);
SetBoolFormat(value, FmtScope::Local);
SetBoolCaseFormat(value, FmtScope::Local);
SetBoolLengthFormat(value, FmtScope::Local);
SetIntFormat(value, FmtScope::Local);
SetFlowType(GroupType::Seq, value, FmtScope::Local);
SetFlowType(GroupType::Map, value, FmtScope::Local);
SetMapKeyFormat(value, FmtScope::Local);
}
void EmitterState::SetAnchor() { m_hasAnchor = true; }
void EmitterState::SetTag() { m_hasTag = true; }
void EmitterState::SetNonContent() { m_hasNonContent = true; }
void EmitterState::SetLongKey() {
assert(!m_groups.empty());
if (m_groups.empty()) {
return;
}
assert(m_groups.back()->type == GroupType::Map);
m_groups.back()->longKey = true;
}
void EmitterState::ForceFlow() {
assert(!m_groups.empty());
if (m_groups.empty()) {
return;
}
m_groups.back()->flowType = FlowType::Flow;
}
void EmitterState::StartedNode() {
if (m_groups.empty()) {
m_docCount++;
} else {
m_groups.back()->childCount++;
if (m_groups.back()->childCount % 2 == 0) {
m_groups.back()->longKey = false;
}
}
m_hasAnchor = false;
m_hasTag = false;
m_hasNonContent = false;
}
EmitterNodeType::value EmitterState::NextGroupType(
GroupType::value type) const {
if (type == GroupType::Seq) {
if (GetFlowType(type) == Block)
return EmitterNodeType::BlockSeq;
else
return EmitterNodeType::FlowSeq;
} else {
if (GetFlowType(type) == Block)
return EmitterNodeType::BlockMap;
else
return EmitterNodeType::FlowMap;
}
// can't happen
assert(false);
return EmitterNodeType::NoType;
}
void EmitterState::StartedDoc() {
m_hasAnchor = false;
m_hasTag = false;
m_hasNonContent = false;
}
void EmitterState::EndedDoc() {
m_hasAnchor = false;
m_hasTag = false;
m_hasNonContent = false;
}
void EmitterState::StartedScalar() {
StartedNode();
ClearModifiedSettings();
}
void EmitterState::StartedGroup(GroupType::value type) {
StartedNode();
const std::size_t lastGroupIndent =
(m_groups.empty() ? 0 : m_groups.back()->indent);
m_curIndent += lastGroupIndent;
// TODO: Create move constructors for settings types to simplify transfer
std::unique_ptr<Group> pGroup(new Group(type));
// transfer settings (which last until this group is done)
//
// NB: if pGroup->modifiedSettings == m_modifiedSettings,
// m_modifiedSettings is not changed!
pGroup->modifiedSettings = std::move(m_modifiedSettings);
// set up group
if (GetFlowType(type) == Block) {
pGroup->flowType = FlowType::Block;
} else {
pGroup->flowType = FlowType::Flow;
}
pGroup->indent = GetIndent();
m_groups.push_back(std::move(pGroup));
}
void EmitterState::EndedGroup(GroupType::value type) {
if (m_groups.empty()) {
if (type == GroupType::Seq) {
return SetError(ErrorMsg::UNEXPECTED_END_SEQ);
} else {
return SetError(ErrorMsg::UNEXPECTED_END_MAP);
}
}
// get rid of the current group
{
std::unique_ptr<Group> pFinishedGroup = std::move(m_groups.back());
m_groups.pop_back();
if (pFinishedGroup->type != type) {
return SetError(ErrorMsg::UNMATCHED_GROUP_TAG);
}
}
// reset old settings
std::size_t lastIndent = (m_groups.empty() ? 0 : m_groups.back()->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();
ClearModifiedSettings();
}
EmitterNodeType::value EmitterState::CurGroupNodeType() const {
if (m_groups.empty()) {
return EmitterNodeType::NoType;
}
return m_groups.back()->NodeType();
}
GroupType::value EmitterState::CurGroupType() const {
return m_groups.empty() ? GroupType::NoType : m_groups.back()->type;
}
FlowType::value EmitterState::CurGroupFlowType() const {
return m_groups.empty() ? FlowType::NoType : m_groups.back()->flowType;
}
std::size_t EmitterState::CurGroupIndent() const {
return m_groups.empty() ? 0 : m_groups.back()->indent;
}
std::size_t EmitterState::CurGroupChildCount() const {
return m_groups.empty() ? m_docCount : m_groups.back()->childCount;
}
bool EmitterState::CurGroupLongKey() const {
return m_groups.empty() ? false : m_groups.back()->longKey;
}
std::size_t EmitterState::LastIndent() const {
if (m_groups.size() <= 1) {
return 0;
}
return m_curIndent - m_groups[m_groups.size() - 2]->indent;
}
void EmitterState::ClearModifiedSettings() { m_modifiedSettings.clear(); }
bool EmitterState::SetOutputCharset(EMITTER_MANIP value,
FmtScope::value scope) {
switch (value) {
case EmitNonAscii:
case EscapeNonAscii:
_Set(m_charset, value, scope);
return true;
default:
return false;
}
}
bool EmitterState::SetStringFormat(EMITTER_MANIP value, FmtScope::value 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, FmtScope::value 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,
FmtScope::value scope) {
switch (value) {
case LongBool:
case ShortBool:
_Set(m_boolLengthFmt, value, scope);
return true;
default:
return false;
}
}
bool EmitterState::SetBoolCaseFormat(EMITTER_MANIP value,
FmtScope::value 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, FmtScope::value scope) {
switch (value) {
case Dec:
case Hex:
case Oct:
_Set(m_intFmt, value, scope);
return true;
default:
return false;
}
}
bool EmitterState::SetIndent(std::size_t value, FmtScope::value scope) {
if (value <= 1)
return false;
_Set(m_indent, value, scope);
return true;
}
bool EmitterState::SetPreCommentIndent(std::size_t value,
FmtScope::value scope) {
if (value == 0)
return false;
_Set(m_preCommentIndent, value, scope);
return true;
}
bool EmitterState::SetPostCommentIndent(std::size_t value,
FmtScope::value scope) {
if (value == 0)
return false;
_Set(m_postCommentIndent, value, scope);
return true;
}
bool EmitterState::SetFlowType(GroupType::value groupType, EMITTER_MANIP value,
FmtScope::value scope) {
switch (value) {
case Block:
case Flow:
_Set(groupType == GroupType::Seq ? m_seqFmt : m_mapFmt, value, scope);
return true;
default:
return false;
}
}
EMITTER_MANIP EmitterState::GetFlowType(GroupType::value groupType) const {
// force flow style if we're currently in a flow
if (CurGroupFlowType() == FlowType::Flow)
return Flow;
// otherwise, go with what's asked of us
return (groupType == GroupType::Seq ? m_seqFmt.get() : m_mapFmt.get());
}
bool EmitterState::SetMapKeyFormat(EMITTER_MANIP value, FmtScope::value scope) {
switch (value) {
case Auto:
case LongKey:
_Set(m_mapKeyFmt, value, scope);
return true;
default:
return false;
}
}
bool EmitterState::SetFloatPrecision(std::size_t value, FmtScope::value scope) {
if (value > std::numeric_limits<float>::digits10 + 1)
return false;
_Set(m_floatPrecision, value, scope);
return true;
}
bool EmitterState::SetDoublePrecision(std::size_t value,
FmtScope::value scope) {
if (value > std::numeric_limits<double>::digits10 + 1)
return false;
_Set(m_doublePrecision, value, scope);
return true;
}
}
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