intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 1491 insertions, 0 deletions

diff --git a/contrib/tools/ragel6/parsedata.cpp b/contrib/tools/ragel6/parsedata.cpp
new file mode 100644
index 00000000000..eafe73e5242
--- /dev/null
+++ b/contrib/tools/ragel6/parsedata.cpp
@@ -0,0 +1,1491 @@
+/*
+ *  Copyright 2001-2008 Adrian Thurston <[email protected]>
+ */
+
+/*  This file is part of Ragel.
+ *
+ *  Ragel is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  Ragel is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ * 
+ *  You should have received a copy of the GNU General Public License
+ *  along with Ragel; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+
+#include <iostream>
+#include <iomanip>
+#include <errno.h>
+#include <stdlib.h>
+#include <limits.h>
+
+#include "ragel.h"
+#include "rlparse.h"
+#include "parsedata.h"
+#include "parsetree.h"
+#include "mergesort.h"
+#include "xmlcodegen.h"
+#include "version.h"
+#include "inputdata.h"
+
+using namespace std;
+
+char mainMachine[] = "main";
+
+void Token::set( const char *str, int len )
+{
+	length = len;
+	data = new char[len+1];
+	memcpy( data, str, len );
+	data[len] = 0;
+}
+
+void Token::append( const Token &other )
+{
+	int newLength = length + other.length;
+	char *newString = new char[newLength+1];
+	memcpy( newString, data, length );
+	memcpy( newString + length, other.data, other.length );
+	newString[newLength] = 0;
+	data = newString;
+	length = newLength;
+}
+
+/* Perform minimization after an operation according 
+ * to the command line args. */
+void afterOpMinimize( FsmAp *fsm, bool lastInSeq )
+{
+	/* Switch on the prefered minimization algorithm. */
+	if ( minimizeOpt == MinimizeEveryOp || ( minimizeOpt == MinimizeMostOps && lastInSeq ) ) {
+		/* First clean up the graph. FsmAp operations may leave these
+		 * lying around. There should be no dead end states. The subtract
+		 * intersection operators are the only places where they may be
+		 * created and those operators clean them up. */
+		fsm->removeUnreachableStates();
+
+		switch ( minimizeLevel ) {
+			case MinimizeApprox:
+				fsm->minimizeApproximate();
+				break;
+			case MinimizePartition1:
+				fsm->minimizePartition1();
+				break;
+			case MinimizePartition2:
+				fsm->minimizePartition2();
+				break;
+			case MinimizeStable:
+				fsm->minimizeStable();
+				break;
+		}
+	}
+}
+
+/* Count the transitions in the fsm by walking the state list. */
+int countTransitions( FsmAp *fsm )
+{
+	int numTrans = 0;
+	StateAp *state = fsm->stateList.head;
+	while ( state != 0 ) {
+		numTrans += state->outList.length();
+		state = state->next;
+	}
+	return numTrans;
+}
+
+Key makeFsmKeyHex( char *str, const InputLoc &loc, ParseData *pd )
+{
+	/* Reset errno so we can check for overflow or underflow. In the event of
+	 * an error, sets the return val to the upper or lower bound being tested
+	 * against. */
+	errno = 0;
+	unsigned int size = keyOps->alphType->size;
+	bool unusedBits = size < sizeof(unsigned long);
+
+	unsigned long ul = strtoul( str, 0, 16 );
+
+	if ( errno == ERANGE || ( unusedBits && ul >> (size * 8) ) ) {
+		error(loc) << "literal " << str << " overflows the alphabet type" << endl;
+		ul = 1 << (size * 8);
+	}
+
+	if ( unusedBits && keyOps->alphType->isSigned && ul >> (size * 8 - 1) )
+		ul |= ( (unsigned long)(-1L) >> (size*8) ) << (size*8);
+
+	return Key( (long)ul );
+}
+
+#ifdef _MSC_VER
+#   define strtoll _strtoi64
+#endif
+
+Key makeFsmKeyDec( char *str, const InputLoc &loc, ParseData *pd )
+{
+	if ( keyOps->alphType->isSigned ) {
+		/* Convert the number to a decimal. First reset errno so we can check
+		 * for overflow or underflow. */
+		errno = 0;
+		long long minVal = keyOps->alphType->sMinVal;
+		long long maxVal = keyOps->alphType->sMaxVal;
+	
+		long long ll = strtoll( str, 0, 10 );
+	
+		/* Check for underflow. */
+		if ( ( errno == ERANGE && ll < 0 ) || ll < minVal) {
+			error(loc) << "literal " << str << " underflows the alphabet type" << endl;
+			ll = minVal;
+		}
+		/* Check for overflow. */
+		else if ( ( errno == ERANGE && ll > 0 ) || ll > maxVal ) {
+			error(loc) << "literal " << str << " overflows the alphabet type" << endl;
+			ll = maxVal;
+		}
+	
+		return Key( (long)ll );
+	}
+	else {
+		/* Convert the number to a decimal. First reset errno so we can check
+		 * for overflow or underflow. */
+		errno = 0;
+		unsigned long long minVal = keyOps->alphType->uMinVal;
+		unsigned long long maxVal = keyOps->alphType->uMaxVal;
+	
+		unsigned long long ull = strtoull( str, 0, 10 );
+	
+		/* Check for underflow. */
+		if ( ( errno == ERANGE && ull < 0 ) || ull < minVal) {
+			error(loc) << "literal " << str << " underflows the alphabet type" << endl;
+			ull = minVal;
+		}
+		/* Check for overflow. */
+		else if ( ( errno == ERANGE && ull > 0 ) || ull > maxVal ) {
+			error(loc) << "literal " << str << " overflows the alphabet type" << endl;
+			ull = maxVal;
+		}
+	
+		return Key( (unsigned long)ull );
+	}
+}
+
+/* Make an fsm key in int format (what the fsm graph uses) from an alphabet
+ * number returned by the parser. Validates that the number doesn't overflow
+ * the alphabet type. */
+Key makeFsmKeyNum( char *str, const InputLoc &loc, ParseData *pd )
+{
+	/* Switch on hex/decimal format. */
+	if ( str[0] == '0' && str[1] == 'x' )
+		return makeFsmKeyHex( str, loc, pd );
+	else
+		return makeFsmKeyDec( str, loc, pd );
+}
+
+/* Make an fsm int format (what the fsm graph uses) from a single character.
+ * Performs proper conversion depending on signed/unsigned property of the
+ * alphabet. */
+Key makeFsmKeyChar( char c, ParseData *pd )
+{
+	if ( keyOps->isSigned ) {
+		/* Copy from a char type. */
+		return Key( c );
+	}
+	else {
+		/* Copy from an unsigned byte type. */
+		return Key( (unsigned char)c );
+	}
+}
+
+/* Make an fsm key array in int format (what the fsm graph uses) from a string
+ * of characters. Performs proper conversion depending on signed/unsigned
+ * property of the alphabet. */
+void makeFsmKeyArray( Key *result, char *data, int len, ParseData *pd )
+{
+	if ( keyOps->isSigned ) {
+		/* Copy from a char star type. */
+		char *src = data;
+		for ( int i = 0; i < len; i++ )
+			result[i] = Key(src[i]);
+	}
+	else {
+		/* Copy from an unsigned byte ptr type. */
+		unsigned char *src = (unsigned char*) data;
+		for ( int i = 0; i < len; i++ )
+			result[i] = Key(src[i]);
+	}
+}
+
+/* Like makeFsmKeyArray except the result has only unique keys. They ordering
+ * will be changed. */
+void makeFsmUniqueKeyArray( KeySet &result, char *data, int len, 
+		bool caseInsensitive, ParseData *pd )
+{
+	/* Use a transitions list for getting unique keys. */
+	if ( keyOps->isSigned ) {
+		/* Copy from a char star type. */
+		char *src = data;
+		for ( int si = 0; si < len; si++ ) {
+			Key key( src[si] );
+			result.insert( key );
+			if ( caseInsensitive ) {
+				if ( key.isLower() )
+					result.insert( key.toUpper() );
+				else if ( key.isUpper() )
+					result.insert( key.toLower() );
+			}
+		}
+	}
+	else {
+		/* Copy from an unsigned byte ptr type. */
+		unsigned char *src = (unsigned char*) data;
+		for ( int si = 0; si < len; si++ ) {
+			Key key( src[si] );
+			result.insert( key );
+			if ( caseInsensitive ) {
+				if ( key.isLower() )
+					result.insert( key.toUpper() );
+				else if ( key.isUpper() )
+					result.insert( key.toLower() );
+			}
+		}
+	}
+}
+
+FsmAp *dotFsm( ParseData *pd )
+{
+	FsmAp *retFsm = new FsmAp();
+	retFsm->rangeFsm( keyOps->minKey, keyOps->maxKey );
+	return retFsm;
+}
+
+FsmAp *dotStarFsm( ParseData *pd )
+{
+	FsmAp *retFsm = new FsmAp();
+	retFsm->rangeStarFsm( keyOps->minKey, keyOps->maxKey );
+	return retFsm;
+}
+
+/* Make a builtin type. Depends on the signed nature of the alphabet type. */
+FsmAp *makeBuiltin( BuiltinMachine builtin, ParseData *pd )
+{
+	/* FsmAp created to return. */
+	FsmAp *retFsm = 0;
+	bool isSigned = keyOps->isSigned;
+
+	switch ( builtin ) {
+	case BT_Any: {
+		/* All characters. */
+		retFsm = dotFsm( pd );
+		break;
+	}
+	case BT_Ascii: {
+		/* Ascii characters 0 to 127. */
+		retFsm = new FsmAp();
+		retFsm->rangeFsm( 0, 127 );
+		break;
+	}
+	case BT_Extend: {
+		/* Ascii extended characters. This is the full byte range. Dependent
+		 * on signed, vs no signed. If the alphabet is one byte then just use
+		 * dot fsm. */
+		if ( isSigned ) {
+			retFsm = new FsmAp();
+			retFsm->rangeFsm( -128, 127 );
+		}
+		else {
+			retFsm = new FsmAp();
+			retFsm->rangeFsm( 0, 255 );
+		}
+		break;
+	}
+	case BT_Alpha: {
+		/* Alpha [A-Za-z]. */
+		FsmAp *upper = new FsmAp(), *lower = new FsmAp();
+		upper->rangeFsm( 'A', 'Z' );
+		lower->rangeFsm( 'a', 'z' );
+		upper->unionOp( lower );
+		upper->minimizePartition2();
+		retFsm = upper;
+		break;
+	}
+	case BT_Digit: {
+		/* Digits [0-9]. */
+		retFsm = new FsmAp();
+		retFsm->rangeFsm( '0', '9' );
+		break;
+	}
+	case BT_Alnum: {
+		/* Alpha numerics [0-9A-Za-z]. */
+		FsmAp *digit = new FsmAp(), *lower = new FsmAp();
+		FsmAp *upper = new FsmAp();
+		digit->rangeFsm( '0', '9' );
+		upper->rangeFsm( 'A', 'Z' );
+		lower->rangeFsm( 'a', 'z' );
+		digit->unionOp( upper );
+		digit->unionOp( lower );
+		digit->minimizePartition2();
+		retFsm = digit;
+		break;
+	}
+	case BT_Lower: {
+		/* Lower case characters. */
+		retFsm = new FsmAp();
+		retFsm->rangeFsm( 'a', 'z' );
+		break;
+	}
+	case BT_Upper: {
+		/* Upper case characters. */
+		retFsm = new FsmAp();
+		retFsm->rangeFsm( 'A', 'Z' );
+		break;
+	}
+	case BT_Cntrl: {
+		/* Control characters. */
+		FsmAp *cntrl = new FsmAp();
+		FsmAp *highChar = new FsmAp();
+		cntrl->rangeFsm( 0, 31 );
+		highChar->concatFsm( 127 );
+		cntrl->unionOp( highChar );
+		cntrl->minimizePartition2();
+		retFsm = cntrl;
+		break;
+	}
+	case BT_Graph: {
+		/* Graphical ascii characters [!-~]. */
+		retFsm = new FsmAp();
+		retFsm->rangeFsm( '!', '~' );
+		break;
+	}
+	case BT_Print: {
+		/* Printable characters. Same as graph except includes space. */
+		retFsm = new FsmAp();
+		retFsm->rangeFsm( ' ', '~' );
+		break;
+	}
+	case BT_Punct: {
+		/* Punctuation. */
+		FsmAp *range1 = new FsmAp();
+		FsmAp *range2 = new FsmAp();
+		FsmAp *range3 = new FsmAp(); 
+		FsmAp *range4 = new FsmAp();
+		range1->rangeFsm( '!', '/' );
+		range2->rangeFsm( ':', '@' );
+		range3->rangeFsm( '[', '`' );
+		range4->rangeFsm( '{', '~' );
+		range1->unionOp( range2 );
+		range1->unionOp( range3 );
+		range1->unionOp( range4 );
+		range1->minimizePartition2();
+		retFsm = range1;
+		break;
+	}
+	case BT_Space: {
+		/* Whitespace: [\t\v\f\n\r ]. */
+		FsmAp *cntrl = new FsmAp();
+		FsmAp *space = new FsmAp();
+		cntrl->rangeFsm( '\t', '\r' );
+		space->concatFsm( ' ' );
+		cntrl->unionOp( space );
+		cntrl->minimizePartition2();
+		retFsm = cntrl;
+		break;
+	}
+	case BT_Xdigit: {
+		/* Hex digits [0-9A-Fa-f]. */
+		FsmAp *digit = new FsmAp();
+		FsmAp *upper = new FsmAp();
+		FsmAp *lower = new FsmAp();
+		digit->rangeFsm( '0', '9' );
+		upper->rangeFsm( 'A', 'F' );
+		lower->rangeFsm( 'a', 'f' );
+		digit->unionOp( upper );
+		digit->unionOp( lower );
+		digit->minimizePartition2();
+		retFsm = digit;
+		break;
+	}
+	case BT_Lambda: {
+		retFsm = new FsmAp();
+		retFsm->lambdaFsm();
+		break;
+	}
+	case BT_Empty: {
+		retFsm = new FsmAp();
+		retFsm->emptyFsm();
+		break;
+	}}
+
+	return retFsm;
+}
+
+/* Check if this name inst or any name inst below is referenced. */
+bool NameInst::anyRefsRec()
+{
+	if ( numRefs > 0 )
+		return true;
+
+	/* Recurse on children until true. */
+	for ( NameVect::Iter ch = childVect; ch.lte(); ch++ ) {
+		if ( (*ch)->anyRefsRec() )
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * ParseData
+ */
+
+/* Initialize the structure that will collect info during the parse of a
+ * machine. */
+ParseData::ParseData( const char *fileName, char *sectionName, 
+		const InputLoc &sectionLoc )
+:	
+	sectionGraph(0),
+	generatingSectionSubset(false),
+	nextPriorKey(0),
+	/* 0 is reserved for global error actions. */
+	nextLocalErrKey(1),
+	nextNameId(0),
+	nextCondId(0),
+	alphTypeSet(false),
+	getKeyExpr(0),
+	accessExpr(0),
+	prePushExpr(0),
+	postPopExpr(0),
+	pExpr(0),
+	peExpr(0),
+	eofExpr(0),
+	csExpr(0),
+	topExpr(0),
+	stackExpr(0),
+	actExpr(0),
+	tokstartExpr(0),
+	tokendExpr(0),
+	dataExpr(0),
+	lowerNum(0),
+	upperNum(0),
+	fileName(fileName),
+	sectionName(sectionName),
+	sectionLoc(sectionLoc),
+	curActionOrd(0),
+	curPriorOrd(0),
+	rootName(0),
+	exportsRootName(0),
+	nextEpsilonResolvedLink(0),
+	nextLongestMatchId(1),
+	lmRequiresErrorState(false),
+	cgd(0)
+{
+	/* Initialize the dictionary of graphs. This is our symbol table. The
+	 * initialization needs to be done on construction which happens at the
+	 * beginning of a machine spec so any assignment operators can reference
+	 * the builtins. */
+	initGraphDict();
+}
+
+/* Clean up the data collected during a parse. */
+ParseData::~ParseData()
+{
+	/* Delete all the nodes in the action list. Will cause all the
+	 * string data that represents the actions to be deallocated. */
+	actionList.empty();
+}
+
+/* Make a name id in the current name instantiation scope if it is not
+ * already there. */
+NameInst *ParseData::addNameInst( const InputLoc &loc, const char *data, bool isLabel )
+{
+	/* Create the name instantitaion object and insert it. */
+	NameInst *newNameInst = new NameInst( loc, curNameInst, data, nextNameId++, isLabel );
+	curNameInst->childVect.append( newNameInst );
+	if ( data != 0 )
+		curNameInst->children.insertMulti( data, newNameInst );
+	return newNameInst;
+}
+
+void ParseData::initNameWalk()
+{
+	curNameInst = rootName;
+	curNameChild = 0;
+}
+
+void ParseData::initExportsNameWalk()
+{
+	curNameInst = exportsRootName;
+	curNameChild = 0;
+}
+
+/* Goes into the next child scope. The number of the child is already set up.
+ * We need this for the syncronous name tree and parse tree walk to work
+ * properly. It is reset on entry into a scope and advanced on poping of a
+ * scope. A call to enterNameScope should be accompanied by a corresponding
+ * popNameScope. */
+NameFrame ParseData::enterNameScope( bool isLocal, int numScopes )
+{
+	/* Save off the current data. */
+	NameFrame retFrame;
+	retFrame.prevNameInst = curNameInst;
+	retFrame.prevNameChild = curNameChild;
+	retFrame.prevLocalScope = localNameScope;
+
+	/* Enter into the new name scope. */
+	for ( int i = 0; i < numScopes; i++ ) {
+		curNameInst = curNameInst->childVect[curNameChild];
+		curNameChild = 0;
+	}
+
+	if ( isLocal )
+		localNameScope = curNameInst;
+
+	return retFrame;
+}
+
+/* Return from a child scope to a parent. The parent info must be specified as
+ * an argument and is obtained from the corresponding call to enterNameScope.
+ * */
+void ParseData::popNameScope( const NameFrame &frame )
+{
+	/* Pop the name scope. */
+	curNameInst = frame.prevNameInst;
+	curNameChild = frame.prevNameChild+1;
+	localNameScope = frame.prevLocalScope;
+}
+
+void ParseData::resetNameScope( const NameFrame &frame )
+{
+	/* Pop the name scope. */
+	curNameInst = frame.prevNameInst;
+	curNameChild = frame.prevNameChild;
+	localNameScope = frame.prevLocalScope;
+}
+
+
+void ParseData::unsetObsoleteEntries( FsmAp *graph )
+{
+	/* Loop the reference names and increment the usage. Names that are no
+	 * longer needed will be unset in graph. */
+	for ( NameVect::Iter ref = curNameInst->referencedNames; ref.lte(); ref++ ) {
+		/* Get the name. */
+		NameInst *name = *ref;
+		name->numUses += 1;
+
+		/* If the name is no longer needed unset its corresponding entry. */
+		if ( name->numUses == name->numRefs ) {
+			assert( graph->entryPoints.find( name->id ) != 0 );
+			graph->unsetEntry( name->id );
+			assert( graph->entryPoints.find( name->id ) == 0 );
+		}
+	}
+}
+
+NameSet ParseData::resolvePart( NameInst *refFrom, const char *data, bool recLabelsOnly )
+{
+	/* Queue needed for breadth-first search, load it with the start node. */
+	NameInstList nameQueue;
+	nameQueue.append( refFrom );
+
+	NameSet result;
+	while ( nameQueue.length() > 0 ) {
+		/* Pull the next from location off the queue. */
+		NameInst *from = nameQueue.detachFirst();
+
+		/* Look for the name. */
+		NameMapEl *low, *high;
+		if ( from->children.findMulti( data, low, high ) ) {
+			/* Record all instances of the name. */
+			for ( ; low <= high; low++ )
+				result.insert( low->value );
+		}
+
+		/* Name not there, do breadth-first operation of appending all
+		 * childrent to the processing queue. */
+		for ( NameVect::Iter name = from->childVect; name.lte(); name++ ) {
+			if ( !recLabelsOnly || (*name)->isLabel )
+				nameQueue.append( *name );
+		}
+	}
+
+	/* Queue exhausted and name never found. */
+	return result;
+}
+
+void ParseData::resolveFrom( NameSet &result, NameInst *refFrom, 
+		const NameRef &nameRef, int namePos )
+{
+	/* Look for the name in the owning scope of the factor with aug. */
+	NameSet partResult = resolvePart( refFrom, nameRef[namePos], false );
+	
+	/* If there are more parts to the name then continue on. */
+	if ( ++namePos < nameRef.length() ) {
+		/* There are more components to the name, search using all the part
+		 * results as the base. */
+		for ( NameSet::Iter name = partResult; name.lte(); name++ )
+			resolveFrom( result, *name, nameRef, namePos );
+	}
+	else {
+		/* This is the last component, append the part results to the final
+		 * results. */
+		result.insert( partResult );
+	}
+}
+
+/* Write out a name reference. */
+ostream &operator<<( ostream &out, const NameRef &nameRef )
+{
+	int pos = 0;
+	if ( nameRef[pos] == 0 ) {
+		out << "::";
+		pos += 1;
+	}
+	out << nameRef[pos++];
+	for ( ; pos < nameRef.length(); pos++ )
+		out << "::" << nameRef[pos];
+	return out;
+}
+
+ostream &operator<<( ostream &out, const NameInst &nameInst )
+{
+	/* Count the number fully qualified name parts. */
+	int numParents = 0;
+	NameInst *curParent = nameInst.parent;
+	while ( curParent != 0 ) {
+		numParents += 1;
+		curParent = curParent->parent;
+	}
+
+	/* Make an array and fill it in. */
+	curParent = nameInst.parent;
+	NameInst **parents = new NameInst*[numParents];
+	for ( int p = numParents-1; p >= 0; p-- ) {
+		parents[p] = curParent;
+		curParent = curParent->parent;
+	}
+		
+	/* Write the parents out, skip the root. */
+	for ( int p = 1; p < numParents; p++ )
+		out << "::" << ( parents[p]->name != 0 ? parents[p]->name : "<ANON>" );
+
+	/* Write the name and cleanup. */
+	out << "::" << ( nameInst.name != 0 ? nameInst.name : "<ANON>" );
+	delete[] parents;
+	return out;
+}
+
+struct CmpNameInstLoc
+{
+	static int compare( const NameInst *ni1, const NameInst *ni2 )
+	{
+		if ( ni1->loc.line < ni2->loc.line )
+			return -1;
+		else if ( ni1->loc.line > ni2->loc.line )
+			return 1;
+		else if ( ni1->loc.col < ni2->loc.col )
+			return -1;
+		else if ( ni1->loc.col > ni2->loc.col )
+			return 1;
+		return 0;
+	}
+};
+
+void errorStateLabels( const NameSet &resolved )
+{
+	MergeSort<NameInst*, CmpNameInstLoc> mergeSort;
+	mergeSort.sort( resolved.data, resolved.length() );
+	for ( NameSet::Iter res = resolved; res.lte(); res++ )
+		error((*res)->loc) << "  -> " << **res << endl;
+}
+
+
+NameInst *ParseData::resolveStateRef( const NameRef &nameRef, InputLoc &loc, Action *action )
+{
+	NameInst *nameInst = 0;
+
+	/* Do the local search if the name is not strictly a root level name
+	 * search. */
+	if ( nameRef[0] != 0 ) {
+		/* If the action is referenced, resolve all of them. */
+		if ( action != 0 && action->actionRefs.length() > 0 ) {
+			/* Look for the name in all referencing scopes. */
+			NameSet resolved;
+			for ( ActionRefs::Iter actRef = action->actionRefs; actRef.lte(); actRef++ )
+				resolveFrom( resolved, *actRef, nameRef, 0 );
+
+			if ( resolved.length() > 0 ) {
+				/* Take the first one. */
+				nameInst = resolved[0];
+				if ( resolved.length() > 1 ) {
+					/* Complain about the multiple references. */
+					error(loc) << "state reference " << nameRef << 
+							" resolves to multiple entry points" << endl;
+					errorStateLabels( resolved );
+				}
+			}
+		}
+	}
+
+	/* If not found in the local scope, look in global. */
+	if ( nameInst == 0 ) {
+		NameSet resolved;
+		int fromPos = nameRef[0] != 0 ? 0 : 1;
+		resolveFrom( resolved, rootName, nameRef, fromPos );
+
+		if ( resolved.length() > 0 ) {
+			/* Take the first. */
+			nameInst = resolved[0];
+			if ( resolved.length() > 1 ) {
+				/* Complain about the multiple references. */
+				error(loc) << "state reference " << nameRef << 
+						" resolves to multiple entry points" << endl;
+				errorStateLabels( resolved );
+			}
+		}
+	}
+
+	if ( nameInst == 0 ) {
+		/* If not found then complain. */
+		error(loc) << "could not resolve state reference " << nameRef << endl;
+	}
+	return nameInst;
+}
+
+void ParseData::resolveNameRefs( InlineList *inlineList, Action *action )
+{
+	for ( InlineList::Iter item = *inlineList; item.lte(); item++ ) {
+		switch ( item->type ) {
+			case InlineItem::Entry: case InlineItem::Goto:
+			case InlineItem::Call: case InlineItem::Next: {
+				/* Resolve, pass action for local search. */
+				NameInst *target = resolveStateRef( *item->nameRef, item->loc, action );
+
+				/* Name lookup error reporting is handled by resolveStateRef. */
+				if ( target != 0 ) {
+					/* Check if the target goes into a longest match. */
+					NameInst *search = target->parent;
+					while ( search != 0 ) {
+						if ( search->isLongestMatch ) {
+							error(item->loc) << "cannot enter inside a longest "
+									"match construction as an entry point" << endl;
+							break;
+						}
+						search = search->parent;
+					}
+
+					/* Record the reference in the name. This will cause the
+					 * entry point to survive to the end of the graph
+					 * generating walk. */
+					target->numRefs += 1;
+				}
+
+				item->nameTarg = target;
+				break;
+			}
+			default:
+				break;
+		}
+
+		/* Some of the item types may have children. */
+		if ( item->children != 0 )
+			resolveNameRefs( item->children, action );
+	}
+}
+
+/* Resolve references to labels in actions. */
+void ParseData::resolveActionNameRefs()
+{
+	for ( ActionList::Iter act = actionList; act.lte(); act++ ) {
+		/* Only care about the actions that are referenced. */
+		if ( act->actionRefs.length() > 0 )
+			resolveNameRefs( act->inlineList, act );
+	}
+}
+
+/* Walk a name tree starting at from and fill the name index. */
+void ParseData::fillNameIndex( NameInst *from )
+{
+	/* Fill the value for from in the name index. */
+	nameIndex[from->id] = from;
+
+	/* Recurse on the implicit final state and then all children. */
+	if ( from->final != 0 )
+		fillNameIndex( from->final );
+	for ( NameVect::Iter name = from->childVect; name.lte(); name++ )
+		fillNameIndex( *name );
+}
+
+void ParseData::makeRootNames()
+{
+	/* Create the root name. */
+	rootName = new NameInst( InputLoc(), 0, 0, nextNameId++, false );
+	exportsRootName = new NameInst( InputLoc(), 0, 0, nextNameId++, false );
+}
+
+/* Build the name tree and supporting data structures. */
+void ParseData::makeNameTree( GraphDictEl *dictEl )
+{
+	/* Set up curNameInst for the walk. */
+	initNameWalk();
+
+	if ( dictEl != 0 ) {
+		/* A start location has been specified. */
+		dictEl->value->makeNameTree( dictEl->loc, this );
+	}
+	else {
+		/* First make the name tree. */
+		for ( GraphList::Iter glel = instanceList; glel.lte(); glel++ ) {
+			/* Recurse on the instance. */
+			glel->value->makeNameTree( glel->loc, this );
+		}
+	}
+	
+	/* The number of nodes in the tree can now be given by nextNameId */
+	nameIndex = new NameInst*[nextNameId];
+	memset( nameIndex, 0, sizeof(NameInst*)*nextNameId );
+	fillNameIndex( rootName );
+	fillNameIndex( exportsRootName );
+}
+
+
+void ParseData::createBuiltin( const char *name, BuiltinMachine builtin )
+{
+	Expression *expression = new Expression( builtin );
+	Join *join = new Join( expression );
+	MachineDef *machineDef = new MachineDef( join );
+	VarDef *varDef = new VarDef( name, machineDef );
+	GraphDictEl *graphDictEl = new GraphDictEl( name, varDef );
+	graphDict.insert( graphDictEl );
+}
+
+/* Initialize the graph dict with builtin types. */
+void ParseData::initGraphDict( )
+{
+	createBuiltin( "any", BT_Any );
+	createBuiltin( "ascii", BT_Ascii );
+	createBuiltin( "extend", BT_Extend );
+	createBuiltin( "alpha", BT_Alpha );
+	createBuiltin( "digit", BT_Digit );
+	createBuiltin( "alnum", BT_Alnum );
+	createBuiltin( "lower", BT_Lower );
+	createBuiltin( "upper", BT_Upper );
+	createBuiltin( "cntrl", BT_Cntrl );
+	createBuiltin( "graph", BT_Graph );
+	createBuiltin( "print", BT_Print );
+	createBuiltin( "punct", BT_Punct );
+	createBuiltin( "space", BT_Space );
+	createBuiltin( "xdigit", BT_Xdigit );
+	createBuiltin( "null", BT_Lambda );
+	createBuiltin( "zlen", BT_Lambda );
+	createBuiltin( "empty", BT_Empty );
+}
+
+/* Set the alphabet type. If the types are not valid returns false. */
+bool ParseData::setAlphType( const InputLoc &loc, char *s1, char *s2 )
+{
+	alphTypeLoc = loc;
+	userAlphType = findAlphType( s1, s2 );
+	alphTypeSet = true;
+	return userAlphType != 0;
+}
+
+/* Set the alphabet type. If the types are not valid returns false. */
+bool ParseData::setAlphType( const InputLoc &loc, char *s1 )
+{
+	alphTypeLoc = loc;
+	userAlphType = findAlphType( s1 );
+	alphTypeSet = true;
+	return userAlphType != 0;
+}
+
+bool ParseData::setVariable( char *var, InlineList *inlineList )
+{
+	bool set = true;
+
+	if ( strcmp( var, "p" ) == 0 )
+		pExpr = inlineList;
+	else if ( strcmp( var, "pe" ) == 0 )
+		peExpr = inlineList;
+	else if ( strcmp( var, "eof" ) == 0 )
+		eofExpr = inlineList;
+	else if ( strcmp( var, "cs" ) == 0 )
+		csExpr = inlineList;
+	else if ( strcmp( var, "data" ) == 0 )
+		dataExpr = inlineList;
+	else if ( strcmp( var, "top" ) == 0 )
+		topExpr = inlineList;
+	else if ( strcmp( var, "stack" ) == 0 )
+		stackExpr = inlineList;
+	else if ( strcmp( var, "act" ) == 0 )
+		actExpr = inlineList;
+	else if ( strcmp( var, "ts" ) == 0 )
+		tokstartExpr = inlineList;
+	else if ( strcmp( var, "te" ) == 0 )
+		tokendExpr = inlineList;
+	else
+		set = false;
+
+	return set;
+}
+
+/* Initialize the key operators object that will be referenced by all fsms
+ * created. */
+void ParseData::initKeyOps( )
+{
+	/* Signedness and bounds. */
+	HostType *alphType = alphTypeSet ? userAlphType : hostLang->defaultAlphType;
+	thisKeyOps.setAlphType( alphType );
+
+	if ( lowerNum != 0 ) {
+		/* If ranges are given then interpret the alphabet type. */
+		thisKeyOps.minKey = makeFsmKeyNum( lowerNum, rangeLowLoc, this );
+		thisKeyOps.maxKey = makeFsmKeyNum( upperNum, rangeHighLoc, this );
+	}
+
+	thisCondData.lastCondKey = thisKeyOps.maxKey;
+}
+
+void ParseData::printNameInst( NameInst *nameInst, int level )
+{
+	for ( int i = 0; i < level; i++ )
+		cerr << "  ";
+	cerr << (nameInst->name != 0 ? nameInst->name : "<ANON>") << 
+			"  id: " << nameInst->id << 
+			"  refs: " << nameInst->numRefs <<
+			"  uses: " << nameInst->numUses << endl;
+	for ( NameVect::Iter name = nameInst->childVect; name.lte(); name++ )
+		printNameInst( *name, level+1 );
+}
+
+/* Remove duplicates of unique actions from an action table. */
+void ParseData::removeDups( ActionTable &table )
+{
+	/* Scan through the table looking for unique actions to 
+	 * remove duplicates of. */
+	for ( int i = 0; i < table.length(); i++ ) {
+		/* Remove any duplicates ahead of i. */
+		for ( int r = i+1; r < table.length(); ) {
+			if ( table[r].value == table[i].value )
+				table.vremove(r);
+			else
+				r += 1;
+		}
+	}
+}
+
+/* Remove duplicates from action lists. This operates only on transition and
+ * eof action lists and so should be called once all actions have been
+ * transfered to their final resting place. */
+void ParseData::removeActionDups( FsmAp *graph )
+{
+	/* Loop all states. */
+	for ( StateList::Iter state = graph->stateList; state.lte(); state++ ) {
+		/* Loop all transitions. */
+		for ( TransList::Iter trans = state->outList; trans.lte(); trans++ )
+			removeDups( trans->actionTable );
+		removeDups( state->toStateActionTable );
+		removeDups( state->fromStateActionTable );
+		removeDups( state->eofActionTable );
+	}
+}
+
+Action *ParseData::newAction( const char *name, InlineList *inlineList )
+{
+	InputLoc loc;
+	loc.line = 1;
+	loc.col = 1;
+	loc.fileName = "NONE";
+
+	Action *action = new Action( loc, name, inlineList, nextCondId++ );
+	action->actionRefs.append( rootName );
+	actionList.append( action );
+	return action;
+}
+
+void ParseData::initLongestMatchData()
+{
+	if ( lmList.length() > 0 ) {
+		/* The initTokStart action resets the token start. */
+		InlineList *il1 = new InlineList;
+		il1->append( new InlineItem( InputLoc(), InlineItem::LmInitTokStart ) );
+		initTokStart = newAction( "initts", il1 );
+		initTokStart->isLmAction = true;
+
+		/* The initActId action gives act a default value. */
+		InlineList *il4 = new InlineList;
+		il4->append( new InlineItem( InputLoc(), InlineItem::LmInitAct ) );
+		initActId = newAction( "initact", il4 );
+		initActId->isLmAction = true;
+
+		/* The setTokStart action sets tokstart. */
+		InlineList *il5 = new InlineList;
+		il5->append( new InlineItem( InputLoc(), InlineItem::LmSetTokStart ) );
+		setTokStart = newAction( "ts", il5 );
+		setTokStart->isLmAction = true;
+
+		/* The setTokEnd action sets tokend. */
+		InlineList *il3 = new InlineList;
+		il3->append( new InlineItem( InputLoc(), InlineItem::LmSetTokEnd ) );
+		setTokEnd = newAction( "te", il3 );
+		setTokEnd->isLmAction = true;
+
+		/* The action will also need an ordering: ahead of all user action
+		 * embeddings. */
+		initTokStartOrd = curActionOrd++;
+		initActIdOrd = curActionOrd++;
+		setTokStartOrd = curActionOrd++;
+		setTokEndOrd = curActionOrd++;
+	}
+}
+
+/* After building the graph, do some extra processing to ensure the runtime
+ * data of the longest mactch operators is consistent. */
+void ParseData::setLongestMatchData( FsmAp *graph )
+{
+	if ( lmList.length() > 0 ) {
+		/* Make sure all entry points (targets of fgoto, fcall, fnext, fentry)
+		 * init the tokstart. */
+		for ( EntryMap::Iter en = graph->entryPoints; en.lte(); en++ ) {
+			/* This is run after duplicates are removed, we must guard against
+			 * inserting a duplicate. */
+			ActionTable &actionTable = en->value->toStateActionTable;
+			if ( ! actionTable.hasAction( initTokStart ) )
+				actionTable.setAction( initTokStartOrd, initTokStart );
+		}
+
+		/* Find the set of states that are the target of transitions with
+		 * actions that have calls. These states will be targeted by fret
+		 * statements. */
+		StateSet states;
+		for ( StateList::Iter state = graph->stateList; state.lte(); state++ ) {
+			for ( TransList::Iter trans = state->outList; trans.lte(); trans++ ) {
+				for ( ActionTable::Iter ati = trans->actionTable; ati.lte(); ati++ ) {
+					if ( ati->value->anyCall && trans->toState != 0 )
+						states.insert( trans->toState );
+				}
+			}
+		}
+
+
+		/* Init tokstart upon entering the above collected states. */
+		for ( StateSet::Iter ps = states; ps.lte(); ps++ ) {
+			/* This is run after duplicates are removed, we must guard against
+			 * inserting a duplicate. */
+			ActionTable &actionTable = (*ps)->toStateActionTable;
+			if ( ! actionTable.hasAction( initTokStart ) )
+				actionTable.setAction( initTokStartOrd, initTokStart );
+		}
+	}
+}
+
+/* Make the graph from a graph dict node. Does minimization and state sorting. */
+FsmAp *ParseData::makeInstance( GraphDictEl *gdNode )
+{
+	/* Build the graph from a walk of the parse tree. */
+	FsmAp *graph = gdNode->value->walk( this );
+
+	/* Resolve any labels that point to multiple states. Any labels that are
+	 * still around are referenced only by gotos and calls and they need to be
+	 * made into deterministic entry points. */
+	graph->deterministicEntry();
+
+	/*
+	 * All state construction is now complete.
+	 */
+
+	/* Transfer actions from the out action tables to eof action tables. */
+	for ( StateSet::Iter state = graph->finStateSet; state.lte(); state++ )
+		graph->transferOutActions( *state );
+
+	/* Transfer global error actions. */
+	for ( StateList::Iter state = graph->stateList; state.lte(); state++ )
+		graph->transferErrorActions( state, 0 );
+	
+	if ( ::wantDupsRemoved )
+		removeActionDups( graph );
+
+	/* Remove unreachable states. There should be no dead end states. The
+	 * subtract and intersection operators are the only places where they may
+	 * be created and those operators clean them up. */
+	graph->removeUnreachableStates();
+
+	/* No more fsm operations are to be done. Action ordering numbers are
+	 * no longer of use and will just hinder minimization. Clear them. */
+	graph->nullActionKeys();
+
+	/* Transition priorities are no longer of use. We can clear them
+	 * because they will just hinder minimization as well. Clear them. */
+	graph->clearAllPriorities();
+
+	if ( minimizeOpt != MinimizeNone ) {
+		/* Minimize here even if we minimized at every op. Now that function
+		 * keys have been cleared we may get a more minimal fsm. */
+		switch ( minimizeLevel ) {
+			case MinimizeApprox:
+				graph->minimizeApproximate();
+				break;
+			case MinimizeStable:
+				graph->minimizeStable();
+				break;
+			case MinimizePartition1:
+				graph->minimizePartition1();
+				break;
+			case MinimizePartition2:
+				graph->minimizePartition2();
+				break;
+		}
+	}
+
+	graph->compressTransitions();
+
+	return graph;
+}
+
+void ParseData::printNameTree()
+{
+	/* Print the name instance map. */
+	for ( NameVect::Iter name = rootName->childVect; name.lte(); name++ )
+		printNameInst( *name, 0 );
+	
+	cerr << "name index:" << endl;
+	/* Show that the name index is correct. */
+	for ( int ni = 0; ni < nextNameId; ni++ ) {
+		cerr << ni << ": ";
+		const char *name = nameIndex[ni]->name;
+		cerr << ( name != 0 ? name : "<ANON>" ) << endl;
+	}
+}
+
+FsmAp *ParseData::makeSpecific( GraphDictEl *gdNode )
+{
+	/* Build the name tree and supporting data structures. */
+	makeNameTree( gdNode );
+
+	/* Resove name references from gdNode. */
+	initNameWalk();
+	gdNode->value->resolveNameRefs( this );
+
+	/* Do not resolve action references. Since we are not building the entire
+	 * graph there's a good chance that many name references will fail. This
+	 * is okay since generating part of the graph is usually only done when
+	 * inspecting the compiled machine. */
+
+	/* Same story for extern entry point references. */
+
+	/* Flag this case so that the XML code generator is aware that we haven't
+	 * looked up name references in actions. It can then avoid segfaulting. */
+	generatingSectionSubset = true;
+
+	/* Just building the specified graph. */
+	initNameWalk();
+	FsmAp *mainGraph = makeInstance( gdNode );
+
+	return mainGraph;
+}
+
+FsmAp *ParseData::makeAll()
+{
+	/* Build the name tree and supporting data structures. */
+	makeNameTree( 0 );
+
+	/* Resove name references in the tree. */
+	initNameWalk();
+	for ( GraphList::Iter glel = instanceList; glel.lte(); glel++ )
+		glel->value->resolveNameRefs( this );
+
+	/* Resolve action code name references. */
+	resolveActionNameRefs();
+
+	/* Force name references to the top level instantiations. */
+	for ( NameVect::Iter inst = rootName->childVect; inst.lte(); inst++ )
+		(*inst)->numRefs += 1;
+
+	FsmAp *mainGraph = 0;
+	FsmAp **graphs = new FsmAp*[instanceList.length()];
+	int numOthers = 0;
+
+	/* Make all the instantiations, we know that main exists in this list. */
+	initNameWalk();
+	for ( GraphList::Iter glel = instanceList; glel.lte();  glel++ ) {
+		if ( strcmp( glel->key, mainMachine ) == 0 ) {
+			/* Main graph is always instantiated. */
+			mainGraph = makeInstance( glel );
+		}
+		else {
+			/* Instantiate and store in others array. */
+			graphs[numOthers++] = makeInstance( glel );
+		}
+	}
+
+	if ( mainGraph == 0 )
+		mainGraph = graphs[--numOthers];
+
+	if ( numOthers > 0 ) {
+		/* Add all the other graphs into main. */
+		mainGraph->globOp( graphs, numOthers );
+	}
+
+	delete[] graphs;
+	return mainGraph;
+}
+
+void ParseData::analyzeAction( Action *action, InlineList *inlineList )
+{
+	/* FIXME: Actions used as conditions should be very constrained. */
+	for ( InlineList::Iter item = *inlineList; item.lte(); item++ ) {
+		if ( item->type == InlineItem::Call || item->type == InlineItem::CallExpr )
+			action->anyCall = true;
+
+		/* Need to recurse into longest match items. */
+		if ( item->type == InlineItem::LmSwitch ) {
+			LongestMatch *lm = item->longestMatch;
+			for ( LmPartList::Iter lmi = *lm->longestMatchList; lmi.lte(); lmi++ ) {
+				if ( lmi->action != 0 )
+					analyzeAction( action, lmi->action->inlineList );
+			}
+		}
+
+		if ( item->type == InlineItem::LmOnLast || 
+				item->type == InlineItem::LmOnNext ||
+				item->type == InlineItem::LmOnLagBehind )
+		{
+			LongestMatchPart *lmi = item->longestMatchPart;
+			if ( lmi->action != 0 )
+				analyzeAction( action, lmi->action->inlineList );
+		}
+
+		if ( item->children != 0 )
+			analyzeAction( action, item->children );
+	}
+}
+
+
+/* Check actions for bad uses of fsm directives. We don't go inside longest
+ * match items in actions created by ragel, since we just want the user
+ * actions. */
+void ParseData::checkInlineList( Action *act, InlineList *inlineList )
+{
+	for ( InlineList::Iter item = *inlineList; item.lte(); item++ ) {
+		/* EOF checks. */
+		if ( act->numEofRefs > 0 ) {
+			switch ( item->type ) {
+				/* Currently no checks. */
+				default:
+					break;
+			}
+		}
+
+		/* Recurse. */
+		if ( item->children != 0 )
+			checkInlineList( act, item->children );
+	}
+}
+
+void ParseData::checkAction( Action *action )
+{
+	/* Check for actions with calls that are embedded within a longest match
+	 * machine. */
+	if ( !action->isLmAction && action->numRefs() > 0 && action->anyCall ) {
+		for ( ActionRefs::Iter ar = action->actionRefs; ar.lte(); ar++ ) {
+			NameInst *check = *ar;
+			while ( check != 0 ) {
+				if ( check->isLongestMatch ) {
+					error(action->loc) << "within a scanner, fcall is permitted"
+						" only in pattern actions" << endl;
+					break;
+				}
+				check = check->parent;
+			}
+		}
+	}
+
+	checkInlineList( action, action->inlineList );
+}
+
+
+void ParseData::analyzeGraph( FsmAp *graph )
+{
+	for ( ActionList::Iter act = actionList; act.lte(); act++ )
+		analyzeAction( act, act->inlineList );
+
+	for ( StateList::Iter st = graph->stateList; st.lte(); st++ ) {
+		/* The transition list. */
+		for ( TransList::Iter trans = st->outList; trans.lte(); trans++ ) {
+			for ( ActionTable::Iter at = trans->actionTable; at.lte(); at++ )
+				at->value->numTransRefs += 1;
+		}
+
+		for ( ActionTable::Iter at = st->toStateActionTable; at.lte(); at++ )
+			at->value->numToStateRefs += 1;
+
+		for ( ActionTable::Iter at = st->fromStateActionTable; at.lte(); at++ )
+			at->value->numFromStateRefs += 1;
+
+		for ( ActionTable::Iter at = st->eofActionTable; at.lte(); at++ )
+			at->value->numEofRefs += 1;
+
+		for ( StateCondList::Iter sc = st->stateCondList; sc.lte(); sc++ ) {
+			for ( CondSet::Iter sci = sc->condSpace->condSet; sci.lte(); sci++ )
+				(*sci)->numCondRefs += 1;
+		}
+	}
+
+	/* Checks for bad usage of directives in action code. */
+	for ( ActionList::Iter act = actionList; act.lte(); act++ )
+		checkAction( act );
+}
+
+void ParseData::makeExportsNameTree()
+{
+	/* Make a name tree for the exports. */
+	initExportsNameWalk();
+
+	/* First make the name tree. */
+	for ( GraphDict::Iter gdel = graphDict; gdel.lte(); gdel++ ) {
+		if ( gdel->value->isExport ) {
+			/* Recurse on the instance. */
+			gdel->value->makeNameTree( gdel->loc, this );
+		}
+	}
+}
+
+void ParseData::makeExports()
+{
+	makeExportsNameTree();
+
+	/* Resove name references in the tree. */
+	initExportsNameWalk();
+	for ( GraphDict::Iter gdel = graphDict; gdel.lte(); gdel++ ) {
+		if ( gdel->value->isExport )
+			gdel->value->resolveNameRefs( this );
+	}
+
+	/* Make all the instantiations, we know that main exists in this list. */
+	initExportsNameWalk();
+	for ( GraphDict::Iter gdel = graphDict; gdel.lte();  gdel++ ) {
+		/* Check if this var def is an export. */
+		if ( gdel->value->isExport ) {
+			/* Build the graph from a walk of the parse tree. */
+			FsmAp *graph = gdel->value->walk( this );
+
+			/* Build the graph from a walk of the parse tree. */
+			if ( !graph->checkSingleCharMachine() ) {
+				error(gdel->loc) << "bad export machine, must define "
+						"a single character" << endl;
+			}
+			else {
+				/* Safe to extract the key and declare the export. */
+				Key exportKey = graph->startState->outList.head->lowKey;
+				exportList.append( new Export( gdel->value->name, exportKey ) );
+			}
+		}
+	}
+
+}
+
+/* Construct the machine and catch failures which can occur during
+ * construction. */
+void ParseData::prepareMachineGen( GraphDictEl *graphDictEl )
+{
+	try {
+		/* This machine construction can fail. */
+		prepareMachineGenTBWrapped( graphDictEl );
+	}
+	catch ( FsmConstructFail fail ) {
+		switch ( fail.reason ) {
+			case FsmConstructFail::CondNoKeySpace: {
+				InputLoc &loc = alphTypeSet ? alphTypeLoc : sectionLoc;
+				error(loc) << "sorry, no more characters are "
+						"available in the alphabet space" << endl;
+				error(loc) << "  for conditions, please use a "
+						"smaller alphtype or reduce" << endl;
+				error(loc) << "  the span of characters on which "
+						"conditions are embedded" << endl;
+				break;
+			}
+		}
+	}
+}
+
+void ParseData::prepareMachineGenTBWrapped( GraphDictEl *graphDictEl )
+{
+	beginProcessing();
+	initKeyOps();
+	makeRootNames();
+	initLongestMatchData();
+
+	/* Make the graph, do minimization. */
+	if ( graphDictEl == 0 )
+		sectionGraph = makeAll();
+	else
+		sectionGraph = makeSpecific( graphDictEl );
+	
+	/* Compute exports from the export definitions. */
+	makeExports();
+
+	/* If any errors have occured in the input file then don't write anything. */
+	if ( gblErrorCount > 0 )
+		return;
+
+	analyzeGraph( sectionGraph );
+
+	/* Depends on the graph analysis. */
+	setLongestMatchData( sectionGraph );
+
+	/* Decide if an error state is necessary.
+	 *  1. There is an error transition
+	 *  2. There is a gap in the transitions
+	 *  3. The longest match operator requires it. */
+	if ( lmRequiresErrorState || sectionGraph->hasErrorTrans() )
+		sectionGraph->errState = sectionGraph->addState();
+
+	/* State numbers need to be assigned such that all final states have a
+	 * larger state id number than all non-final states. This enables the
+	 * first_final mechanism to function correctly. We also want states to be
+	 * ordered in a predictable fashion. So we first apply a depth-first
+	 * search, then do a stable sort by final state status, then assign
+	 * numbers. */
+
+	sectionGraph->depthFirstOrdering();
+	sectionGraph->sortStatesByFinal();
+	sectionGraph->setStateNumbers( 0 );
+}
+
+void ParseData::generateReduced( InputData &inputData )
+{
+	beginProcessing();
+
+	cgd = makeCodeGen( inputData.inputFileName, sectionName, *inputData.outStream );
+
+	/* Make the generator. */
+	BackendGen backendGen( sectionName, this, sectionGraph, cgd );
+
+	/* Write out with it. */
+	backendGen.makeBackend();
+
+	if ( printStatistics ) {
+		cerr << "fsm name  : " << sectionName << endl;
+		cerr << "num states: " << sectionGraph->stateList.length() << endl;
+		cerr << endl;
+	}
+}
+
+void ParseData::generateXML( ostream &out )
+{
+	beginProcessing();
+
+	/* Make the generator. */
+	XMLCodeGen codeGen( sectionName, this, sectionGraph, out );
+
+	/* Write out with it. */
+	codeGen.writeXML();
+
+	if ( printStatistics ) {
+		cerr << "fsm name  : " << sectionName << endl;
+		cerr << "num states: " << sectionGraph->stateList.length() << endl;
+		cerr << endl;
+	}
+}
+