//----------------------------------------------------------------------------------------
//
// compileRules compile source rules, placing the compiled form into a output stream
// The compiled form is identical to that from ICU4C (Big Endian).
//
//----------------------------------------------------------------------------------------
internal static void CompileRules(string rules, Stream os)
{
//
// Read the input rules, generate a parse tree, symbol table,
// and list of all Unicode Sets referenced by the rules.
//
RBBIRuleBuilder builder = new RBBIRuleBuilder(rules);
builder.fScanner.Parse();
//
// UnicodeSet processing.
// Munge the Unicode Sets to create a set of character categories.
// Generate the mapping tables (TRIE) from input 32-bit characters to
// the character categories.
//
builder.fSetBuilder.Build();
//
// Generate the DFA state transition table.
//
builder.fForwardTables = new RBBITableBuilder(builder, fForwardTree);
builder.fReverseTables = new RBBITableBuilder(builder, fReverseTree);
builder.fSafeFwdTables = new RBBITableBuilder(builder, fSafeFwdTree);
builder.fSafeRevTables = new RBBITableBuilder(builder, fSafeRevTree);
builder.fForwardTables.Build();
builder.fReverseTables.Build();
builder.fSafeFwdTables.Build();
builder.fSafeRevTables.Build();
if (builder.fDebugEnv != null &&
builder.fDebugEnv.IndexOf("states", StringComparison.Ordinal) >= 0)
{
builder.fForwardTables.PrintRuleStatusTable();
}
//
// Package up the compiled data, writing it to an output stream
// in the serialization format. This is the same as the ICU4C runtime format.
//
builder.FlattenData(os);
}
//------------------------------------------------------------------------
//
// RBBISetBuilder Constructor
//
//------------------------------------------------------------------------
internal RBBISetBuilder(RBBIRuleBuilder rb)
{
fRB = rb;
}
private IList <RBBIStateDescriptor> fDStates; // D states (Aho's terminology)
// Index is state number
// Contents are RBBIStateDescriptor pointers.
//-----------------------------------------------------------------------------
//
// Constructor for RBBITableBuilder.
//
// rootNode is an index into the array of root nodes that is held by
// the overall RBBIRuleBuilder.
//-----------------------------------------------------------------------------
internal RBBITableBuilder(RBBIRuleBuilder rb, int rootNodeIx)
{
fRootIx = rootNodeIx;
fRB = rb;
fDStates = new JCG.List <RBBIStateDescriptor>();
}