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import std.stdio;
import std.string;
import dyaml;
struct Color
{
ubyte red;
ubyte green;
ubyte blue;
this(ubyte r, ubyte g, ubyte b) @safe
{
red = r;
green = g;
blue = b;
}
this(const Node node, string tag) @safe
{
if (tag == "!color-mapping")
{
//Will throw if a value is missing, is not an integer, or is out of range.
red = node["r"].as!ubyte;
green = node["g"].as!ubyte;
blue = node["b"].as!ubyte;
}
else
{
string value = node.as!string;
if(value.length != 6)
{
throw new Exception("Invalid color: " ~ value);
}
//We don't need to check for uppercase chars this way.
value = value.toLower();
//Get value of a hex digit.
uint hex(char c)
{
import std.ascii;
if(!std.ascii.isHexDigit(c))
{
throw new Exception("Invalid color: " ~ value);
}
if(std.ascii.isDigit(c))
{
return c - '0';
}
return c - 'a' + 10;
}
red = cast(ubyte)(16 * hex(value[0]) + hex(value[1]));
green = cast(ubyte)(16 * hex(value[2]) + hex(value[3]));
blue = cast(ubyte)(16 * hex(value[4]) + hex(value[5]));
}
}
}
void main(string[] args)
{
auto red = Color(255, 0, 0);
auto orange = Color(255, 255, 0);
string path = "input.yaml";
if (args.length > 1)
{
path = args[1];
}
try
{
auto root = Loader.fromFile(path).load();
if(root["scalar-red"].as!Color == red &&
root["mapping-red"].as!Color == red &&
root["scalar-orange"].as!Color == orange &&
root["mapping-orange"].as!Color == orange)
{
writeln("SUCCESS");
return;
}
}
catch(YAMLException e)
{
writeln(e.msg);
}
writeln("FAILURE");
}
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