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add ability to set Node style

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Cameron Ross 2018-06-10 03:52:12 -03:00
parent eec7aa3bba
commit e4087c23f1
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1 changed files with 102 additions and 0 deletions
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102
source/dyaml/node.d
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@ -1984,6 +1984,108 @@ struct Node
else static if(is(Unqual!T==bool)){return isBool();}
else {return false;}
}
/**
* Sets the style of this node when dumped.
*
* Params: style = Any valid style.
*/
void setStyle(CollectionStyle style) @safe
{
enforce(!isValid || isSequence || isMapping, new NodeException(
"Cannot set collection style for non-collection nodes", startMark_));
collectionStyle = style;
}
/// Ditto
void setStyle(ScalarStyle style) @safe
{
enforce(!isValid || (!isSequence && !isMapping), new NodeException(
"Cannot set scalar style for non-scalar nodes", startMark_));
scalarStyle = style;
}
///
@safe unittest
{
import dyaml.dumper;
import dyaml.stream;
auto stream = new YMemoryStream();
auto node = Node([1, 2, 3, 4, 5]);
node.setStyle(CollectionStyle.Block);
auto dumper = Dumper(stream);
dumper.dump(node);
}
///
@safe unittest
{
import dyaml.dumper;
import dyaml.stream;
auto stream = new YMemoryStream();
auto node = Node(4);
node.setStyle(ScalarStyle.Literal);
auto dumper = Dumper(stream);
dumper.dump(node);
}
@safe unittest
{
assertThrown!NodeException(Node(4).setStyle(CollectionStyle.Block));
assertThrown!NodeException(Node([4]).setStyle(ScalarStyle.Literal));
}
@safe unittest
{
import dyaml.dumper;
import dyaml.stream;
{
auto stream = new YMemoryStream();
auto node = Node([1, 2, 3, 4, 5]);
node.setStyle(CollectionStyle.Block);
auto dumper = Dumper(stream);
dumper.explicitEnd = false;
dumper.explicitStart = false;
dumper.YAMLVersion = null;
dumper.dump(node);
//Block style should start with a hyphen.
assert(stream.data[0] == '-');
}
{
auto stream = new YMemoryStream();
auto node = Node([1, 2, 3, 4, 5]);
node.setStyle(CollectionStyle.Flow);
auto dumper = Dumper(stream);
dumper.explicitEnd = false;
dumper.explicitStart = false;
dumper.YAMLVersion = null;
dumper.dump(node);
//Flow style should start with a bracket.
assert(stream.data[0] == '[');
}
{
auto stream = new YMemoryStream();
auto node = Node(1);
node.setStyle(ScalarStyle.SingleQuoted);
auto dumper = Dumper(stream);
dumper.explicitEnd = false;
dumper.explicitStart = false;
dumper.YAMLVersion = null;
dumper.dump(node);
assert(stream.data == "!!int '1'\n");
}
{
auto stream = new YMemoryStream();
auto node = Node(1);
node.setStyle(ScalarStyle.DoubleQuoted);
auto dumper = Dumper(stream);
dumper.explicitEnd = false;
dumper.explicitStart = false;
dumper.YAMLVersion = null;
dumper.dump(node);
assert(stream.data == "!!int \"1\"\n");
}
}
private:
// Implementation of contains() and containsKey().