internal static RantResource DeserializeResource(EasyReader reader)
{
var typeCode = Encoding.ASCII.GetString(reader.ReadBytes(4));
if (!_resourceTypeRegistry.TryGetValue(typeCode, out Type type))
{
throw new InvalidDataException($"Unrecognized resource type: '{typeCode}'");
}
var resource = Activator.CreateInstance(type, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance, null, new object[0], null) as RantResource;
resource?.DeserializeData(reader);
return(resource);
}
/// <summary>
/// Loads a compiled Rant program from the specified stream.
/// </summary>
/// <param name="programName">The name to give to the program.</param>
/// <param name="stream">The stream to load the program from.</param>
/// <returns></returns>
public static RantProgram LoadStream(string programName, Stream stream)
{
if (programName == null)
{
throw new ArgumentNullException(nameof(programName));
}
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
using (var input = new EasyReader(stream))
{
if (Encoding.ASCII.GetString(input.ReadBytes(4)) != Magic)
{
throw new InvalidDataException(GetString("err-pgmload-bad-magic"));
}
var rst = RST.DeserializeRST(input);
// TODO: Use string table
return(new RantProgram(programName, RantProgramOrigin.File, rst));
}
}
/// <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))
{
string magic = Encoding.ASCII.GetString(reader.ReadBytes(4));
if (magic != MAGIC)
{
throw new InvalidDataException(GetString("err-file-corrupt"));
}
ushort version = reader.ReadUInt16();
if (version != PACKAGE_FORMAT_VERSION)
{
throw new InvalidDataException(GetString("err-invalid-package-version", version));
}
bool compress = reader.ReadBoolean();
var package = new RantPackage();
package.Title = reader.ReadString();
package.ID = reader.ReadString();
package.Description = reader.ReadString();
package.Tags = reader.ReadStringArray();
package.Authors = reader.ReadStringArray();
int vmaj = reader.ReadInt32();
int vmin = reader.ReadInt32();
int vrev = reader.ReadInt32();
package.Version = new RantPackageVersion(vmaj, vmin, vrev);
int depCount = reader.ReadInt32();
for (int i = 0; i < depCount; i++)
{
var depId = reader.ReadString();
int depVerMaj = reader.ReadInt32();
int depVerMin = reader.ReadInt32();
int depVerRev = reader.ReadInt32();
bool depAllowNewer = reader.ReadBoolean();
package.AddDependency(new RantPackageDependency(depId, new RantPackageVersion(depVerMaj, depVerMin, depVerRev))
{
AllowNewer = depAllowNewer
});
}
int resCount = reader.ReadInt32();
if (compress)
{
using (var decompressStream = new DeflateStream(reader.BaseStream, CompressionMode.Decompress, true))
{
for (int i = 0; i < resCount; i++)
{
package._resources.Add(RantResource.DeserializeResource(new EasyReader(decompressStream, true)));
}
}
}
else
{
for (int i = 0; i < resCount; i++)
{
package._resources.Add(RantResource.DeserializeResource(reader));
}
}
return(package);
}
}
/// <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))
{
if (Encoding.ASCII.GetString(reader.ReadBytes(4)) != Magic)
throw new InvalidDataException("File is corrupt.");
int numPatterns = reader.ReadInt32();
int numTables = reader.ReadInt32();
if (numPatterns < 0 || numTables < 0)
throw new InvalidDataException("File is corrupt.");
var pkg = new RantPackage();
// Patterns
for (int i = 0; i < numPatterns; i++)
{
var name = reader.ReadString();
var code = reader.ReadString();
pkg.AddPattern(new RantPattern(name, RantPatternSource.String, code));
}
// Tables
for (int i = 0; i < numTables; i++)
{
var name = reader.ReadString();
var subs = reader.ReadStringArray();
int numEntries = reader.ReadInt32();
var hiddenClasses = reader.ReadStringArray();
var entries = new RantDictionaryEntry[numEntries];
for (int j = 0; j < numEntries; j++)
{
int weight = reader.ReadInt32();
bool flags = reader.ReadBoolean(); // unused
int numTerms = reader.ReadInt32();
var terms = new RantDictionaryTerm[numTerms];
for (int k = 0; k < numTerms; k++)
{
var value = reader.ReadString();
var pron = reader.ReadString();
terms[k] = new RantDictionaryTerm(value, pron);
}
var classes = reader.ReadStringArray();
entries[j] = new RantDictionaryEntry(terms, classes, weight);
}
pkg.AddTable(new RantDictionaryTable(name, subs, entries, hiddenClasses));
}
return pkg;
}
}
private static BsonItem ReadItem(byte code, BsonDocument document, EasyReader reader)
{
object val = null;
switch (code)
{
case 0x01: // double
val = reader.ReadDouble();
break;
case 0x02: // string
val = reader.ReadString(Encoding.UTF8).TrimEnd('\x00');
if (document.StringTableMode == BsonStringTableMode.KeysAndValues)
val = document.ReverseStringTable[int.Parse((string)val)];
break;
case 0x03: // document
val = Read(reader, document).Top;
break;
case 0x04: // array
val = Read(reader, document, true).Top;
break;
case 0x05: // binary
var length = reader.ReadInt32();
var subtype = reader.ReadByte();
if (subtype != 0x00)
throw new NotSupportedException("BSON subtypes other than 'generic binary data' are not supported.");
val = reader.ReadBytes(length);
break;
case 0x06: // undefined
break;
case 0x07: // ObjectId
// why does this parser support ObjectIds and not other binary data?
// shhhhh
val = Encoding.ASCII.GetString(reader.ReadBytes(12));
break;
case 0x08: // boolean
val = reader.ReadBoolean();
break;
case 0x09: // UTC datetime
val = reader.ReadInt64();
break;
case 0x0A: // null
break;
case 0x0B: // regex
// why are you using regex in a Rant package?
throw new NotSupportedException("Regular expressions are not supported.");
case 0x0C: // db pointer
throw new NotSupportedException("DB pointers are not supported.");
case 0x0D: // Javascript code
case 0x0F: // JS code with scope
throw new NotSupportedException("Javascript in BSON is not supported.");
case 0x0E: // depreceated
val = reader.ReadString(Encoding.UTF8);
break;
case 0x10: // 32 bit integer
val = reader.ReadInt32();
break;
case 0x11: // timestamp
case 0x12: // 64 bit integer
val = reader.ReadInt64();
break;
case 0xFF: // min key
case 0x7F: // max key
// we don't care about these so let's just skip em
break;
}
if (!(val is BsonItem))
return new BsonItem(val) { Type = code };
var i = (BsonItem)val;
i.Type = code;
return i;
}
/// <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);
}
}
private static BsonItem ReadItem(byte code, BsonDocument document, EasyReader reader)
{
object val = null;
switch (code)
{
case 0x01: // double
val = reader.ReadDouble();
break;
case 0x02: // string
val = reader.ReadString(Encoding.UTF8).TrimEnd('\x00');
if (document.StringTableMode == BsonStringTableMode.KeysAndValues)
{
val = document.ReverseStringTable[int.Parse((string)val)];
}
break;
case 0x03: // document
val = Read(reader, document).Top;
break;
case 0x04: // array
val = Read(reader, document, true).Top;
break;
case 0x05: // binary
var length = reader.ReadInt32();
var subtype = reader.ReadByte();
if (subtype != 0x00)
{
throw new NotSupportedException("BSON subtypes other than 'generic binary data' are not supported.");
}
val = reader.ReadBytes(length);
break;
case 0x06: // undefined
break;
case 0x07: // ObjectId
// why does this parser support ObjectIds and not other binary data?
// shhhhh
val = Encoding.ASCII.GetString(reader.ReadBytes(12));
break;
case 0x08: // boolean
val = reader.ReadBoolean();
break;
case 0x09: // UTC datetime
val = reader.ReadInt64();
break;
case 0x0A: // null
break;
case 0x0B: // regex
// why are you using regex in a Rant package?
throw new NotSupportedException("Regular expressions are not supported.");
case 0x0C: // db pointer
throw new NotSupportedException("DB pointers are not supported.");
case 0x0D: // Javascript code
case 0x0F: // JS code with scope
throw new NotSupportedException("Javascript in BSON is not supported.");
case 0x0E: // depreceated
val = reader.ReadString(Encoding.UTF8);
break;
case 0x10: // 32 bit integer
val = reader.ReadInt32();
break;
case 0x11: // timestamp
case 0x12: // 64 bit integer
val = reader.ReadInt64();
break;
case 0xFF: // min key
case 0x7F: // max key
// we don't care about these so let's just skip em
break;
}
if (!(val is BsonItem))
{
return new BsonItem(val)
{
Type = code
}
}
;
var i = (BsonItem)val;
i.Type = code;
return(i);
}
}
/// <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;
}
}