/// <summary>
/// Loads a package from the specified stream and returns it as a RantPackage object.
/// </summary>
/// <param name="source">The stream to load the package data from.</param>
/// <returns></returns>
public static RantPackage Load(Stream source)
{
using (var reader = new EasyReader(source))
{
var magic = Encoding.ASCII.GetString(reader.ReadBytes(4));
if (magic == OLD_MAGIC)
{
return(LoadOldPackage(reader));
}
if (magic != MAGIC)
{
throw new InvalidDataException("File is corrupt.");
}
var package = new RantPackage();
var version = reader.ReadUInt32();
if (version != PACKAGE_VERSION)
{
throw new InvalidDataException("Invalid package version: " + version);
}
var compress = reader.ReadBoolean();
var size = reader.ReadInt32();
var data = reader.ReadBytes(size);
if (compress)
{
data = EasyCompressor.Decompress(data);
}
var doc = BsonDocument.Read(data);
var info = doc["info"];
if (info == null)
{
throw new InvalidDataException("Metadata is missing from package.");
}
package.Title = info["title"];
package.ID = info["id"];
package.Version = RantPackageVersion.Parse(info["version"]);
package.Description = info["description"];
package.Authors = (string[])info["authors"];
package.Tags = (string[])info["tags"];
var deps = info["dependencies"];
if (deps != null && deps.IsArray)
{
for (int i = 0; i < deps.Count; i++)
{
var dep = deps[i];
var depId = dep["id"].Value;
var depVersion = dep["version"].Value;
bool depAllowNewer = (bool)dep["allow-newer"].Value;
package.AddDependency(new RantPackageDependency(depId.ToString(), depVersion.ToString())
{
AllowNewer = depAllowNewer
});
}
}
var patterns = doc["patterns"];
if (patterns != null)
{
var names = patterns.Keys;
foreach (string name in names)
{
package.AddPattern(new RantPattern(name, RantPatternOrigin.File, patterns[name]));
}
}
var tables = doc["tables"];
if (tables != null)
{
var names = tables.Keys;
foreach (string name in names)
{
var table = tables[name];
string tableName = table["name"];
string[] tableSubs = (string[])table["subs"];
string[] hiddenClasses = (string[])table["hidden"];
var entries = new List <RantDictionaryEntry>();
var entryList = table["entries"];
for (var i = 0; i < entryList.Count; i++)
{
var loadedEntry = entryList[i];
int weight = 1;
if (loadedEntry.HasKey("weight"))
{
weight = (int)loadedEntry["weight"].Value;
}
string[] requiredClasses = (string[])loadedEntry["classes"];
string[] optionalClasses = (string[])loadedEntry["optional_classes"];
var terms = new List <RantDictionaryTerm>();
var termList = loadedEntry["terms"];
for (var j = 0; j < termList.Count; j++)
{
var t = new RantDictionaryTerm(termList[j]["value"], termList[j]["pron"]);
terms.Add(t);
}
var entry = new RantDictionaryEntry(
terms.ToArray(),
requiredClasses.Concat(optionalClasses.Select(x => x + "?")),
weight
);
entries.Add(entry);
}
var rantTable = new RantDictionaryTable(
tableName,
tableSubs,
entries,
hiddenClasses
);
package.AddTable(rantTable);
}
}
return(package);
}
}
/// <summary>
/// Saves the package to the specified file path.
/// </summary>
/// <param name="path">The path to the file to create.</param>
public void Save(
string path,
bool compress = true,
BsonStringTableMode stringTableMode = BsonStringTableMode.None)
{
if (String.IsNullOrEmpty(Path.GetExtension(path)))
{
path += ".rantpkg";
}
using (var writer = new EasyWriter(File.Create(path)))
{
var doc = new BsonDocument(stringTableMode);
var info = doc.Top["info"] = new BsonItem();
info["title"] = new BsonItem(_title);
info["id"] = new BsonItem(_id);
info["description"] = new BsonItem(Description);
info["tags"] = new BsonItem(Tags);
info["version"] = new BsonItem(Version.ToString());
info["authors"] = new BsonItem(Authors);
info["dependencies"] = new BsonItem(_dependencies.Select(dep =>
{
var depObj = new BsonItem();
depObj["id"] = dep.ID;
depObj["version"] = dep.Version.ToString();
depObj["allow-newer"] = dep.AllowNewer;
return(depObj);
}).ToArray());
var patterns = doc.Top["patterns"] = new BsonItem();
if (_patterns != null)
{
foreach (var pattern in _patterns)
{
patterns[pattern.Name] = new BsonItem(pattern.Code);
}
}
var tables = doc.Top["tables"] = new BsonItem();
if (_tables != null)
{
foreach (var table in _tables)
{
var t = tables[table.Name] = new BsonItem();
t["name"] = new BsonItem(table.Name);
t["subs"] = new BsonItem(table.Subtypes);
t["language"] = new BsonItem(table.Language);
t["hidden"] = new BsonItem(table.HiddenClasses.ToArray());
t["hints"] = new BsonItem(0);
var entries = new List <BsonItem>();
foreach (var entry in table.GetEntries())
{
var e = new BsonItem();
if (entry.Weight != 1)
{
e["weight"] = new BsonItem(entry.Weight);
}
var requiredClasses = entry.GetRequiredClasses().ToArray();
if (requiredClasses.Length > 0)
{
e["classes"] = new BsonItem(requiredClasses);
}
var optionalClasses = entry.GetOptionalClasses().ToArray();
if (optionalClasses.Length > 0)
{
e["optional_classes"] = new BsonItem();
}
var terms = new List <BsonItem>();
foreach (var term in entry.Terms)
{
var et = new BsonItem();
et["value"] = new BsonItem(term.Value);
if (term.Pronunciation != "")
{
et["pron"] = new BsonItem(term.Pronunciation);
}
terms.Add(et);
}
e["terms"] = new BsonItem(terms.ToArray());
entries.Add(e);
}
t["entries"] = new BsonItem(entries.ToArray());
}
}
var data = doc.ToByteArray(stringTableMode != BsonStringTableMode.None);
if (compress)
{
data = EasyCompressor.Compress(data);
}
writer.Write(Encoding.ASCII.GetBytes("RANT"));
writer.Write((uint)2);
writer.Write(compress);
writer.Write(data.Length);
writer.Write(data);
}
}