public static ScriptList CreateFrom(BinaryReader reader, long beginAt)
{
// https://www.microsoft.com/typography/otspec/chapter2.htm
//
// ScriptList table
// Type Name Description
// uint16 ScriptCount Number of ScriptRecords
// struct ScriptRecord[ScriptCount] Array of ScriptRecords
// -listed alphabetically by ScriptTag
// ScriptRecord
// Type Name Description
// Tag ScriptTag 4-byte ScriptTag identifier
// Offset16 Script Offset to Script table-from beginning of ScriptList
reader.BaseStream.Seek(beginAt, SeekOrigin.Begin);
ushort scriptCount = reader.ReadUInt16();
ScriptList scriptList = new ScriptList();
// Read records (tags and table offsets)
uint[] scriptTags = new uint[scriptCount];
ushort[] scriptOffsets = new ushort[scriptCount];
for (int i = 0; i < scriptCount; ++i)
{
scriptTags[i] = reader.ReadUInt32();
scriptOffsets[i] = reader.ReadUInt16();
}
// Read each table and add it to the dictionary
for (int i = 0; i < scriptCount; ++i)
{
ScriptTable scriptTable = ScriptTable.CreateFrom(reader, beginAt + scriptOffsets[i]);
scriptTable.scriptTag = scriptTags[i];
scriptList.Add(Utils.TagToString(scriptTags[i]), scriptTable);
}
return(scriptList);
}
public static ScriptList CreateFrom(BinaryReader reader, long beginAt)
{
// ScriptList table
// Type Name Description
// uint16 scriptCount Number of ScriptRecords
// ScriptRecord scriptRecords[scriptCount] Array of ScriptRecords,listed alphabetically by ScriptTag
//
// ScriptRecord
// Type Name Description
// Tag scriptTag 4-byte ScriptTag identifier
// Offset16 scriptOffset Offset to Script table-from beginning of ScriptList
reader.BaseStream.Seek(beginAt, SeekOrigin.Begin);
ushort scriptCount = reader.ReadUInt16();
ScriptList scriptList = new ScriptList();
// Read records (tags and table offsets)
uint[] scriptTags = new uint[scriptCount];
ushort[] scriptOffsets = new ushort[scriptCount];
for (int i = 0; i < scriptCount; ++i)
{
scriptTags[i] = reader.ReadUInt32();
scriptOffsets[i] = reader.ReadUInt16();
}
// Read each table and add it to the dictionary
for (int i = 0; i < scriptCount; ++i)
{
ScriptTable scriptTable = ScriptTable.CreateFrom(reader, beginAt + scriptOffsets[i]);
scriptTable.scriptTag = scriptTags[i];
scriptList.Add(scriptTags[i], scriptTable);
}
return(scriptList);
}