private void processScalar() {
ScalarEvent ev = (ScalarEvent)_event;
if (null == _analysis) {
_analysis = analyzeScalar(ev.Value);
}
if (0 == _style) {
_style = chooseScalarStyle();
}
bool split = !_simpleKeyContext;
if (_style == '"') {
writeDoubleQuoted(_analysis.Scalar, split);
} else if (_style == '\'') {
writeSingleQuoted(_analysis.Scalar, split);
} else if (_style == '>') {
writeFolded(_analysis.Scalar);
} else if (_style == '|') {
writeLiteral(_analysis.Scalar);
} else {
writePlain(_analysis.Scalar, split);
}
_analysis = null;
_style = '\0';
}
private char chooseScalarStyle() {
ScalarEvent ev = (ScalarEvent)_event;
if (null == _analysis) {
_analysis = analyzeScalar(ev.Value);
}
if (ev.Style == '"' || canonical || (_analysis.Empty && ev.Tag == "tag:yaml.org,2002:str")) {
return '"';
}
// if (ev.Style == 0 && ev.Implicit[0]) {
if (ev.Style == 0) {
if (!(_simpleKeyContext && (_analysis.Empty || _analysis.Multiline)) && ((_flowLevel != 0 && _analysis.AllowFlowPlain) || (_flowLevel == 0 && _analysis.AllowBlockPlain))) {
return '\0';
}
}
if (ev.Style == 0 && ev.Implicit[0] && (!(_simpleKeyContext && (_analysis.Empty || _analysis.Multiline)) && (_flowLevel != 0 && _analysis.AllowFlowPlain || (_flowLevel == 0 && _analysis.AllowBlockPlain)))) {
return '\0';
}
if ((ev.Style == '|' || ev.Style == '>') && _flowLevel == 0 && _analysis.AllowBlock) {
return '\'';
}
if ((ev.Style == 0 || ev.Style == '\'') && (_analysis.AllowSingleQuoted && !(_simpleKeyContext && _analysis.Multiline))) {
return '\'';
}
if (_analysis.Multiline && (FIRST_SPACE.Matches(ev.Value).Count == 0) && !_analysis.SpecialCharacters) {
return '|';
}
return '"';
}
private bool checkSimpleKey() {
int length = 0;
if (_event is NodeEvent && null != ((NodeEvent)_event).Anchor) {
if (null == _preparedAnchor) {
_preparedAnchor = prepareAnchor(((NodeEvent)_event).Anchor);
}
length += _preparedAnchor.Length;
}
string tag = null;
if (_event is ScalarEvent) {
tag = ((ScalarEvent)_event).Tag;
} else if (_event is CollectionStartEvent) {
tag = ((CollectionStartEvent)_event).Tag;
}
if (tag != null) {
if (null == _preparedTag) {
_preparedTag = prepareTag(tag);
}
length += _preparedTag.Length;
}
if (_event is ScalarEvent) {
if (null == _analysis) {
_analysis = analyzeScalar(((ScalarEvent)_event).Value);
length += _analysis.Scalar.Length;
}
}
return (length < 128 && (_event is AliasEvent || (_event is ScalarEvent && !_analysis.Multiline) || checkEmptySequence() || checkEmptyMapping()));
}
private void ProcessScalar()
{
if (this.analysis == null)
this.analysis = this.AnalyzeScalar(((Events.Scalar) this.currentEvent).Value);
if (this.style == Style.Plain)
this.style = this.ChooseScalarStyle();
var split = !this.isSimpleKeyContext;
switch (this.style)
{
case Style.Double:
this.WriteDoubleQuoted(this.analysis.Scalar, split);
break;
case Style.Single:
this.WriteSingleQuoted(this.analysis.Scalar, split);
break;
case Style.Folded:
this.WriteFolded(this.analysis.Scalar);
break;
case Style.Literal:
this.WriteLiteral(this.analysis.Scalar);
break;
default:
this.WritePlain(this.analysis.Scalar, split);
break;
}
this.analysis = null;
this.style = Style.Plain;
}
private Style ChooseScalarStyle()
{
var eventNode = (Events.Scalar)this.currentEvent;
if (this.analysis == null)
this.analysis = this.AnalyzeScalar(eventNode.Value);
if (eventNode.Style == Style.Double || this.isCanonical)
return Style.Double;
if (eventNode.Style == Style.Plain && eventNode.ImplicitLevel == ScalarImplicitLevel.Plain)
{
if (!(this.isSimpleKeyContext &&
(this.analysis.IsEmpty || this.analysis.IsMultiline))
&& (this.flowLevel != 0 && this.analysis.AllowFlowPlain
|| (this.flowLevel == 0 && this.analysis.AllowBlockPlain)))
return Style.Plain;
}
if (eventNode.Style == Style.Folded || eventNode.Style == Style.Literal)
if (this.flowLevel == 0 && !this.isSimpleKeyContext
&& this.analysis.AllowBlock)
return eventNode.Style;
if (eventNode.Style == Style.Plain || eventNode.Style == Style.Single)
if (this.analysis.AllowSingleQuoted && !
(this.isSimpleKeyContext
&& this.analysis.IsMultiline))
return Style.Single;
return Style.Double;
}
private bool CheckSimpleKey()
{
var length = 0;
var nodeEvent = this.currentEvent as Events.Node;
if (nodeEvent != null)
{
if (nodeEvent.Anchor != null)
{
if (this.preparedAnchor == null)
this.preparedAnchor = PrepareAnchor(nodeEvent.Anchor);
length += this.preparedAnchor.Length;
}
var scalarEvent = nodeEvent as Events.Scalar;
var collectionEvent = nodeEvent as Events.CollectionStart;
if (scalarEvent != null || collectionEvent != null)
{
var tag = scalarEvent != null ? scalarEvent.Tag : collectionEvent.Tag;
if (tag != null)
{
if (this.preparedTag == null)
this.preparedTag = this.PrepareTag(tag);
length += this.preparedTag.Length;
}
}
if (scalarEvent != null)
{
if (this.analysis == null)
this.analysis = this.AnalyzeScalar(scalarEvent.Value);
length += this.analysis.Scalar.Length;
}
}
return length < 128 && (this.currentEvent is Events.Alias
|| (this.currentEvent is Events.Scalar && !this.analysis.IsEmpty
&& !this.analysis.IsMultiline) || this.CheckEmptySequence()
|| this.CheckEmptyMapping());
}