private IGlyphTransformationTable ParseClassContextSubstitutionTable(int subTableOffset, dynamic fontTable, LookupFlags lookupFlags)
{
var type = typeof(GlyphTypeface).Assembly.GetType("MS.Internal.Shaping.ClassContextSubtable");
dynamic table = new AccessPrivateWrapper(type.Instantiate(subTableOffset));
var coverageTable = this.ParseCoverageTable(fontTable, new AccessPrivateWrapper(table.Coverage(fontTable.Wrapped)));
var ruleSetTables = this.GetEnumerableFromInternalList(
() => (ushort)table.ClassSetCount(fontTable.Wrapped),
i => (dynamic) new AccessPrivateWrapper(table.ClassSet(fontTable.Wrapped, i))).ToList();
return(new ClassContextTransformationTable
{
Coverage = coverageTable,
ClassDefinitions = this.ParseClassDef(fontTable, new AccessPrivateWrapper(table.ClassDef(fontTable.Wrapped))),
TransformationRules = ruleSetTables
.Select(
ruleSetTable =>
ruleSetTable.IsNull ?
Enumerable.Empty <ContextTransformationRule>() :
this.GetEnumerableFromInternalList(
() => ruleSetTable.RuleCount(fontTable.Wrapped),
i => (ContextTransformationRule)this.ParseContextTransformationRule(
fontTable,
new AccessPrivateWrapper(ruleSetTable.Rule(fontTable.Wrapped, i)),
(Func <dynamic, int, ushort>)((ruleTable, index) => (ushort)ruleTable.ClassId(fontTable.Wrapped, index)))).ToList()).ToList(),
LookupFlags = lookupFlags
});
}