intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 911 insertions, 0 deletions

diff --git a/contrib/tools/ragel6/mlflat.cpp b/contrib/tools/ragel6/mlflat.cpp
new file mode 100644
index 0000000000..b97aa15a8c
--- /dev/null
+++ b/contrib/tools/ragel6/mlflat.cpp
@@ -0,0 +1,911 @@
+/*
+ *  Copyright 2004-2006 Adrian Thurston <thurston@complang.org>
+ *            2004 Erich Ocean <eric.ocean@ampede.com>
+ *            2005 Alan West <alan@alanz.com>
+ */
+
+/*  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 <sstream>
+#include "ragel.h"
+#include "mlflat.h"
+#include "redfsm.h"
+#include "gendata.h"
+
+std::ostream &OCamlFlatCodeGen::TO_STATE_ACTION( RedStateAp *state )
+{
+	int act = 0;
+	if ( state->toStateAction != 0 )
+		act = state->toStateAction->location+1;
+	out << act;
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::FROM_STATE_ACTION( RedStateAp *state )
+{
+	int act = 0;
+	if ( state->fromStateAction != 0 )
+		act = state->fromStateAction->location+1;
+	out << act;
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::EOF_ACTION( RedStateAp *state )
+{
+	int act = 0;
+	if ( state->eofAction != 0 )
+		act = state->eofAction->location+1;
+	out << act;
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::TRANS_ACTION( RedTransAp *trans )
+{
+	/* If there are actions, emit them. Otherwise emit zero. */
+	int act = 0;
+	if ( trans->action != 0 )
+		act = trans->action->location+1;
+	out << act;
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::TO_STATE_ACTION_SWITCH()
+{
+	/* Walk the list of functions, printing the cases. */
+	for ( GenActionList::Iter act = actionList; act.lte(); act++ ) {
+		/* Write out referenced actions. */
+		if ( act->numToStateRefs > 0 ) {
+			/* Write the case label, the action and the case break */
+			out << "\t| " << act->actionId << " ->\n";
+			ACTION( out, act, 0, false );
+			out << "\t()\n";
+		}
+	}
+
+	genLineDirective( out );
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::FROM_STATE_ACTION_SWITCH()
+{
+	/* Walk the list of functions, printing the cases. */
+	for ( GenActionList::Iter act = actionList; act.lte(); act++ ) {
+		/* Write out referenced actions. */
+		if ( act->numFromStateRefs > 0 ) {
+			/* Write the case label, the action and the case break */
+			out << "\t| " << act->actionId << " ->\n";
+			ACTION( out, act, 0, false );
+			out << "\t()\n";
+		}
+	}
+
+	genLineDirective( out );
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::EOF_ACTION_SWITCH()
+{
+	/* Walk the list of functions, printing the cases. */
+	for ( GenActionList::Iter act = actionList; act.lte(); act++ ) {
+		/* Write out referenced actions. */
+		if ( act->numEofRefs > 0 ) {
+			/* Write the case label, the action and the case break */
+			out << "\t| " << act->actionId << " ->\n";
+			ACTION( out, act, 0, true );
+			out << "\t()\n";
+		}
+	}
+
+	genLineDirective( out );
+	return out;
+}
+
+
+std::ostream &OCamlFlatCodeGen::ACTION_SWITCH()
+{
+	/* Walk the list of functions, printing the cases. */
+	for ( GenActionList::Iter act = actionList; act.lte(); act++ ) {
+		/* Write out referenced actions. */
+		if ( act->numTransRefs > 0 ) {
+			/* Write the case label, the action and the case break */
+			out << "\t| " << act->actionId << " ->\n";
+			ACTION( out, act, 0, false );
+			out << "\t()\n";
+		}
+	}
+
+	genLineDirective( out );
+	return out;
+}
+
+
+std::ostream &OCamlFlatCodeGen::FLAT_INDEX_OFFSET()
+{
+	out << "\t";
+	int totalStateNum = 0, curIndOffset = 0;
+	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+		/* Write the index offset. */
+		out << curIndOffset;
+		if ( !st.last() ) {
+			out << ARR_SEP();
+			if ( ++totalStateNum % IALL == 0 )
+				out << "\n\t";
+		}
+
+		/* Move the index offset ahead. */
+		if ( st->transList != 0 )
+			curIndOffset += keyOps->span( st->lowKey, st->highKey );
+
+		if ( st->defTrans != 0 )
+			curIndOffset += 1;
+	}
+	out << "\n";
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::KEY_SPANS()
+{
+	out << "\t";
+	int totalStateNum = 0;
+	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+		/* Write singles length. */
+		unsigned long long span = 0;
+		if ( st->transList != 0 )
+			span = keyOps->span( st->lowKey, st->highKey );
+		out << span;
+		if ( !st.last() ) {
+			out << ARR_SEP();
+			if ( ++totalStateNum % IALL == 0 )
+				out << "\n\t";
+		}
+	}
+	out << "\n";
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::TO_STATE_ACTIONS()
+{
+	out << "\t";
+	int totalStateNum = 0;
+	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+		/* Write any eof action. */
+		TO_STATE_ACTION(st);
+		if ( !st.last() ) {
+			out << ARR_SEP();
+			if ( ++totalStateNum % IALL == 0 )
+				out << "\n\t";
+		}
+	}
+	out << "\n";
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::FROM_STATE_ACTIONS()
+{
+	out << "\t";
+	int totalStateNum = 0;
+	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+		/* Write any eof action. */
+		FROM_STATE_ACTION(st);
+		if ( !st.last() ) {
+			out << ARR_SEP();
+			if ( ++totalStateNum % IALL == 0 )
+				out << "\n\t";
+		}
+	}
+	out << "\n";
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::EOF_ACTIONS()
+{
+	out << "\t";
+	int totalStateNum = 0;
+	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+		/* Write any eof action. */
+		EOF_ACTION(st);
+		if ( !st.last() ) {
+			out << ARR_SEP();
+			if ( ++totalStateNum % IALL == 0 )
+				out << "\n\t";
+		}
+	}
+	out << "\n";
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::EOF_TRANS()
+{
+	out << "\t";
+	int totalStateNum = 0;
+	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+		/* Write any eof action. */
+
+		long trans = 0;
+		if ( st->eofTrans != 0 ) {
+			assert( st->eofTrans->pos >= 0 );
+			trans = st->eofTrans->pos+1;
+		}
+		out << trans;
+
+		if ( !st.last() ) {
+			out << ARR_SEP();
+			if ( ++totalStateNum % IALL == 0 )
+				out << "\n\t";
+		}
+	}
+	out << "\n";
+	return out;
+}
+
+
+std::ostream &OCamlFlatCodeGen::COND_KEYS()
+{
+	out << '\t';
+	int totalTrans = 0;
+	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+		/* Emit just cond low key and cond high key. */
+		out << ALPHA_KEY( st->condLowKey ) << ARR_SEP();
+		out << ALPHA_KEY( st->condHighKey ) << ARR_SEP();
+		if ( ++totalTrans % IALL == 0 )
+			out << "\n\t";
+	}
+
+	/* Output one last number so we don't have to figure out when the last
+	 * entry is and avoid writing a comma. */
+	out << /*"(char) " <<*/ 0 << "\n";
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::COND_KEY_SPANS()
+{
+	out << "\t";
+	int totalStateNum = 0;
+	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+		/* Write singles length. */
+		unsigned long long span = 0;
+		if ( st->condList != 0 )
+			span = keyOps->span( st->condLowKey, st->condHighKey );
+		out << span;
+		if ( !st.last() ) {
+			out << ARR_SEP();
+			if ( ++totalStateNum % IALL == 0 )
+				out << "\n\t";
+		}
+	}
+	out << "\n";
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::CONDS()
+{
+	int totalTrans = 0;
+	out << '\t';
+	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+		if ( st->condList != 0 ) {
+			/* Walk the singles. */
+			unsigned long long span = keyOps->span( st->condLowKey, st->condHighKey );
+			for ( unsigned long long pos = 0; pos < span; pos++ ) {
+				if ( st->condList[pos] != 0 )
+					out << st->condList[pos]->condSpaceId + 1 << ARR_SEP();
+				else
+					out << "0" << ARR_SEP();
+				if ( ++totalTrans % IALL == 0 )
+					out << "\n\t";
+			}
+		}
+	}
+
+	/* Output one last number so we don't have to figure out when the last
+	 * entry is and avoid writing a comma. */
+	out << 0 << "\n";
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::COND_INDEX_OFFSET()
+{
+	out << "\t";
+	int totalStateNum = 0, curIndOffset = 0;
+	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+		/* Write the index offset. */
+		out << curIndOffset;
+		if ( !st.last() ) {
+			out << ARR_SEP();
+			if ( ++totalStateNum % IALL == 0 )
+				out << "\n\t";
+		}
+
+		/* Move the index offset ahead. */
+		if ( st->condList != 0 )
+			curIndOffset += keyOps->span( st->condLowKey, st->condHighKey );
+	}
+	out << "\n";
+	return out;
+}
+
+
+std::ostream &OCamlFlatCodeGen::KEYS()
+{
+	out << '\t';
+	int totalTrans = 0;
+	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+		/* Emit just low key and high key. */
+		out << ALPHA_KEY( st->lowKey ) << ARR_SEP();
+		out << ALPHA_KEY( st->highKey ) << ARR_SEP();
+		if ( ++totalTrans % IALL == 0 )
+			out << "\n\t";
+	}
+
+	/* Output one last number so we don't have to figure out when the last
+	 * entry is and avoid writing a comma. */
+	out << /*"(char) " <<*/ 0 << "\n";
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::INDICIES()
+{
+	int totalTrans = 0;
+	out << '\t';
+	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+		if ( st->transList != 0 ) {
+			/* Walk the singles. */
+			unsigned long long span = keyOps->span( st->lowKey, st->highKey );
+			for ( unsigned long long pos = 0; pos < span; pos++ ) {
+				out << st->transList[pos]->id << ARR_SEP();
+				if ( ++totalTrans % IALL == 0 )
+					out << "\n\t";
+			}
+		}
+
+		/* The state's default index goes next. */
+		if ( st->defTrans != 0 )
+			out << st->defTrans->id << ARR_SEP();
+
+		if ( ++totalTrans % IALL == 0 )
+			out << "\n\t";
+	}
+
+	/* Output one last number so we don't have to figure out when the last
+	 * entry is and avoid writing a comma. */
+	out << 0 << "\n";
+	return out;
+}
+
+std::ostream &OCamlFlatCodeGen::TRANS_TARGS()
+{
+	/* Transitions must be written ordered by their id. */
+	RedTransAp **transPtrs = new RedTransAp*[redFsm->transSet.length()];
+	for ( TransApSet::Iter trans = redFsm->transSet; trans.lte(); trans++ )
+		transPtrs[trans->id] = trans;
+
+	/* Keep a count of the num of items in the array written. */
+	out << '\t';
+	int totalStates = 0;
+	for ( int t = 0; t < redFsm->transSet.length(); t++ ) {
+		/* Record the position, need this for eofTrans. */
+		RedTransAp *trans = transPtrs[t];
+		trans->pos = t;
+
+		/* Write out the target state. */
+		out << trans->targ->id;
+		if ( t < redFsm->transSet.length()-1 ) {
+			out << ARR_SEP();
+			if ( ++totalStates % IALL == 0 )
+				out << "\n\t";
+		}
+	}
+	out << "\n";
+	delete[] transPtrs;
+	return out;
+}
+
+
+std::ostream &OCamlFlatCodeGen::TRANS_ACTIONS()
+{
+	/* Transitions must be written ordered by their id. */
+	RedTransAp **transPtrs = new RedTransAp*[redFsm->transSet.length()];
+	for ( TransApSet::Iter trans = redFsm->transSet; trans.lte(); trans++ )
+		transPtrs[trans->id] = trans;
+
+	/* Keep a count of the num of items in the array written. */
+	out << '\t';
+	int totalAct = 0;
+	for ( int t = 0; t < redFsm->transSet.length(); t++ ) {
+		/* Write the function for the transition. */
+		RedTransAp *trans = transPtrs[t];
+		TRANS_ACTION( trans );
+		if ( t < redFsm->transSet.length()-1 ) {
+			out << ARR_SEP();
+			if ( ++totalAct % IALL == 0 )
+				out << "\n\t";
+		}
+	}
+	out << "\n";
+	delete[] transPtrs;
+	return out;
+}
+
+void OCamlFlatCodeGen::LOCATE_TRANS()
+{
+  std::ostringstream temp;
+  temp << "inds + (\n"
+		"		if slen > 0 && " << AT( K(), "keys" ) << " <= " << GET_WIDE_KEY() << " &&\n"
+		"		" << GET_WIDE_KEY() << " <= " << AT( K(), "keys+1" ) << " then\n"
+		"		" << GET_WIDE_KEY() << " - " << AT(K(), "keys" ) << " else slen)";
+	out <<
+		"	let keys = " << vCS() << " lsl 1 in\n"
+		"	let inds = " << AT( IO(), vCS() ) << " in\n"
+		"\n"
+		"	let slen = " << AT( SP(), vCS() ) << " in\n"
+		"	state.trans <- " << AT( I(), temp.str() ) << ";\n"
+		"\n";
+}
+
+void OCamlFlatCodeGen::GOTO( ostream &ret, int gotoDest, bool inFinish )
+{
+	ret << "begin " << vCS() << " <- " << gotoDest << "; " << 
+			CTRL_FLOW() << "raise Goto_again end";
+}
+
+void OCamlFlatCodeGen::GOTO_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish )
+{
+	ret << "begin " << vCS() << " <- (";
+	INLINE_LIST( ret, ilItem->children, 0, inFinish );
+	ret << "); " << CTRL_FLOW() << " raise Goto_again end";
+}
+
+void OCamlFlatCodeGen::CURS( ostream &ret, bool inFinish )
+{
+	ret << "(_ps)";
+}
+
+void OCamlFlatCodeGen::TARGS( ostream &ret, bool inFinish, int targState )
+{
+	ret << "(" << vCS() << ")";
+}
+
+void OCamlFlatCodeGen::NEXT( ostream &ret, int nextDest, bool inFinish )
+{
+	ret << vCS() << " <- " << nextDest << ";";
+}
+
+void OCamlFlatCodeGen::NEXT_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish )
+{
+	ret << vCS() << " <- (";
+	INLINE_LIST( ret, ilItem->children, 0, inFinish );
+	ret << ");";
+}
+
+void OCamlFlatCodeGen::CALL( ostream &ret, int callDest, int targState, bool inFinish )
+{
+	if ( prePushExpr != 0 ) {
+		ret << "begin ";
+		INLINE_LIST( ret, prePushExpr, 0, false );
+	}
+
+	ret << "begin " << AT( STACK(), POST_INCR(TOP()) ) << " <- " << vCS() << "; ";
+  ret << vCS() << " <- " << callDest << "; " << CTRL_FLOW() << "raise Goto_again end ";
+
+	if ( prePushExpr != 0 )
+		ret << "end";
+}
+
+void OCamlFlatCodeGen::CALL_EXPR( ostream &ret, GenInlineItem *ilItem, int targState, bool inFinish )
+{
+	if ( prePushExpr != 0 ) {
+		ret << "begin ";
+		INLINE_LIST( ret, prePushExpr, 0, false );
+	}
+
+	ret << "begin " << AT(STACK(), POST_INCR(TOP()) ) << " <- " << vCS() << "; " << vCS() << " <- (";
+	INLINE_LIST( ret, ilItem->children, targState, inFinish );
+	ret << "); " << CTRL_FLOW() << "raise Goto_again end ";
+
+	if ( prePushExpr != 0 )
+		ret << "end";
+}
+
+void OCamlFlatCodeGen::RET( ostream &ret, bool inFinish )
+{
+	ret << "begin " << vCS() << " <- " << AT(STACK(), PRE_DECR(TOP()) ) << "; ";
+
+	if ( postPopExpr != 0 ) {
+		ret << "begin ";
+		INLINE_LIST( ret, postPopExpr, 0, false );
+		ret << "end ";
+	}
+
+	ret << CTRL_FLOW() <<  "raise Goto_again end";
+}
+
+void OCamlFlatCodeGen::BREAK( ostream &ret, int targState )
+{
+	outLabelUsed = true;
+	ret << "begin " << P() << " <- " << P() << " + 1; " << CTRL_FLOW() << "raise Goto_out end";
+}
+
+void OCamlFlatCodeGen::writeData()
+{
+	/* If there are any transtion functions then output the array. If there
+	 * are none, don't bother emitting an empty array that won't be used. */
+	if ( redFsm->anyActions() ) {
+		OPEN_ARRAY( ARRAY_TYPE(redFsm->maxActArrItem), A() );
+		ACTIONS_ARRAY();
+		CLOSE_ARRAY() <<
+		"\n";
+	}
+
+	if ( redFsm->anyConditions() ) {
+		OPEN_ARRAY( WIDE_ALPH_TYPE(), CK() );
+		COND_KEYS();
+		CLOSE_ARRAY() <<
+		"\n";
+
+		OPEN_ARRAY( ARRAY_TYPE(redFsm->maxCondSpan), CSP() );
+		COND_KEY_SPANS();
+		CLOSE_ARRAY() <<
+		"\n";
+
+		OPEN_ARRAY( ARRAY_TYPE(redFsm->maxCond), C() );
+		CONDS();
+		CLOSE_ARRAY() <<
+		"\n";
+
+		OPEN_ARRAY( ARRAY_TYPE(redFsm->maxCondIndexOffset), CO() );
+		COND_INDEX_OFFSET();
+		CLOSE_ARRAY() <<
+		"\n";
+	}
+
+	OPEN_ARRAY( WIDE_ALPH_TYPE(), K() );
+	KEYS();
+	CLOSE_ARRAY() <<
+	"\n";
+
+	OPEN_ARRAY( ARRAY_TYPE(redFsm->maxSpan), SP() );
+	KEY_SPANS();
+	CLOSE_ARRAY() <<
+	"\n";
+
+	OPEN_ARRAY( ARRAY_TYPE(redFsm->maxFlatIndexOffset), IO() );
+	FLAT_INDEX_OFFSET();
+	CLOSE_ARRAY() <<
+	"\n";
+
+	OPEN_ARRAY( ARRAY_TYPE(redFsm->maxIndex), I() );
+	INDICIES();
+	CLOSE_ARRAY() <<
+	"\n";
+
+	OPEN_ARRAY( ARRAY_TYPE(redFsm->maxState), TT() );
+	TRANS_TARGS();
+	CLOSE_ARRAY() <<
+	"\n";
+
+	if ( redFsm->anyActions() ) {
+		OPEN_ARRAY( ARRAY_TYPE(redFsm->maxActionLoc), TA() );
+		TRANS_ACTIONS();
+		CLOSE_ARRAY() <<
+		"\n";
+	}
+
+	if ( redFsm->anyToStateActions() ) {
+		OPEN_ARRAY( ARRAY_TYPE(redFsm->maxActionLoc), TSA() );
+		TO_STATE_ACTIONS();
+		CLOSE_ARRAY() <<
+		"\n";
+	}
+
+	if ( redFsm->anyFromStateActions() ) {
+		OPEN_ARRAY( ARRAY_TYPE(redFsm->maxActionLoc), FSA() );
+		FROM_STATE_ACTIONS();
+		CLOSE_ARRAY() <<
+		"\n";
+	}
+
+	if ( redFsm->anyEofActions() ) {
+		OPEN_ARRAY( ARRAY_TYPE(redFsm->maxActionLoc), EA() );
+		EOF_ACTIONS();
+		CLOSE_ARRAY() <<
+		"\n";
+	}
+
+	if ( redFsm->anyEofTrans() ) {
+		OPEN_ARRAY( ARRAY_TYPE(redFsm->maxIndexOffset+1), ET() );
+		EOF_TRANS();
+		CLOSE_ARRAY() <<
+		"\n";
+	}
+
+	STATE_IDS();
+
+  out << "type " << TYPE_STATE() << " = { mutable trans : int; mutable acts : int; mutable nacts : int; }"
+    << TOP_SEP();
+
+  out << "exception Goto_match" << TOP_SEP();
+  out << "exception Goto_again" << TOP_SEP();
+  out << "exception Goto_eof_trans" << TOP_SEP();
+}
+
+void OCamlFlatCodeGen::COND_TRANSLATE()
+{
+	out << 
+		"	_widec = " << GET_KEY() << ";\n";
+
+	out <<
+		"   _keys = " << vCS() << "<<1;\n"
+		"   _conds = " << CO() << "[" << vCS() << "];\n"
+//		"	_keys = " << ARR_OFF( CK(), "(" + vCS() + "<<1)" ) << ";\n"
+//		"	_conds = " << ARR_OFF( C(), CO() + "[" + vCS() + "]" ) << ";\n"
+		"\n"
+		"	_slen = " << CSP() << "[" << vCS() << "];\n"
+		"	if (_slen > 0 && " << CK() << "[_keys] <=" 
+			<< GET_WIDE_KEY() << " &&\n"
+		"		" << GET_WIDE_KEY() << " <= " << CK() << "[_keys+1])\n"
+		"		_cond = " << C() << "[_conds+" << GET_WIDE_KEY() << " - " << 
+			CK() << "[_keys]];\n"
+		"	else\n"
+		"		_cond = 0;"
+		"\n";
+	/*  XXX This version of the code doesn't work because Mono is weird.  Works
+	 *  fine in Microsoft's csc, even though the bug report filed claimed it
+	 *  didn't.
+		"	_slen = " << CSP() << "[" << vCS() << "];\n"
+		"	_cond = _slen > 0 && " << CK() << "[_keys] <=" 
+			<< GET_WIDE_KEY() << " &&\n"
+		"		" << GET_WIDE_KEY() << " <= " << CK() << "[_keys+1] ?\n"
+		"		" << C() << "[_conds+" << GET_WIDE_KEY() << " - " << CK() 
+			<< "[_keys]] : 0;\n"
+		"\n";
+		*/
+	out <<
+		"	switch ( _cond ) {\n";
+	for ( CondSpaceList::Iter csi = condSpaceList; csi.lte(); csi++ ) {
+		GenCondSpace *condSpace = csi;
+		out << "	case " << condSpace->condSpaceId + 1 << ": {\n";
+		out << TABS(2) << "_widec = " << CAST(WIDE_ALPH_TYPE()) << "(" <<
+				KEY(condSpace->baseKey) << " + (" << GET_KEY() << 
+				" - " << KEY(keyOps->minKey) << "));\n";
+
+		for ( GenCondSet::Iter csi = condSpace->condSet; csi.lte(); csi++ ) {
+			out << TABS(2) << "if ( ";
+			CONDITION( out, *csi );
+			Size condValOffset = ((1 << csi.pos()) * keyOps->alphSize());
+			out << " ) _widec += " << condValOffset << ";\n";
+		}
+
+		out << "		}\n";
+		out << "		break;\n";
+	}
+
+	SWITCH_DEFAULT();
+
+	out <<
+		"	}\n";
+}
+
+void OCamlFlatCodeGen::writeExec()
+{
+	testEofUsed = false;
+	outLabelUsed = false;
+	initVarTypes();
+
+	out << 
+		"	begin\n";
+//		"	" << slenType << " _slen";
+
+//	if ( redFsm->anyRegCurStateRef() )
+//		out << ", _ps";
+
+//	out << 
+//		"	" << transType << " _trans";
+
+//	if ( redFsm->anyConditions() )
+//		out << ", _cond";
+//	out << ";\n";
+
+//	if ( redFsm->anyToStateActions() || 
+//			redFsm->anyRegActions() || redFsm->anyFromStateActions() )
+//	{
+//		out << 
+//			"	int _acts;\n"
+//			"	int _nacts;\n"; 
+//	}
+
+//	out <<
+//		"	" << "int _keys;\n"
+//		"	" << indsType << " _inds;\n";
+		/*
+		"	" << PTR_CONST() << WIDE_ALPH_TYPE() << POINTER() << "_keys;\n"
+		"	" << PTR_CONST() << ARRAY_TYPE(redFsm->maxIndex) << POINTER() << "_inds;\n";*/
+
+	if ( redFsm->anyConditions() ) {
+		out << 
+			"	" << condsType << " _conds;\n"
+			"	" << WIDE_ALPH_TYPE() << " _widec;\n";
+	}
+
+	out << "\n";
+
+  out <<
+    "	let state = { trans = 0; acts = 0; nacts = 0; } in\n"
+    "	let rec do_start () =\n";
+
+	if ( !noEnd ) {
+		testEofUsed = true;
+		out << 
+			"	if " << P() << " = " << PE() << " then\n"
+			"		do_test_eof ()\n"
+      "\telse\n";
+	}
+
+	if ( redFsm->errState != 0 ) {
+		outLabelUsed = true;
+		out << 
+			"	if " << vCS() << " = " << redFsm->errState->id << " then\n"
+			"		do_out ()\n"
+      "\telse\n";
+	}
+
+  out << "\tdo_resume ()\n";
+
+	out << "and do_resume () =\n";
+
+	if ( redFsm->anyFromStateActions() ) {
+		out <<
+			"	state.acts <- " << AT( FSA(), vCS() ) << ";\n"
+			"	state.nacts <- " << AT( A(), POST_INCR("state.acts") ) << ";\n"
+			"	while " << POST_DECR("state.nacts") << " > 0 do\n"
+			"		begin match " << AT( A(), POST_INCR("state.acts") ) << " with\n";
+			FROM_STATE_ACTION_SWITCH();
+			SWITCH_DEFAULT() <<
+			"		end\n"
+			"	done;\n"
+			"\n";
+	}
+
+	if ( redFsm->anyConditions() )
+		COND_TRANSLATE();
+
+//  out << "\tbegin try\n";
+	LOCATE_TRANS();
+//  out << "\twith Goto_match -> () end;\n";
+
+  out << "\tdo_eof_trans ()\n";
+
+//	if ( redFsm->anyEofTrans() )
+  out << "and do_eof_trans () =\n";
+
+	if ( redFsm->anyRegCurStateRef() )
+		out << "	let ps = " << vCS() << " in\n";
+
+	out <<
+		"	" << vCS() << " <- " << AT( TT() ,"state.trans" ) << ";\n"
+		"\n";
+
+	if ( redFsm->anyRegActions() ) {
+		out <<
+			"\tbegin try\n"
+      "	match " << AT( TA(), "state.trans" ) << " with\n"
+			"\t| 0 -> raise Goto_again\n"
+      "\t| _ ->\n"
+			"	state.acts <- " << AT( TA(), "state.trans" ) << ";\n"
+			"	state.nacts <- " << AT( A(), POST_INCR("state.acts") ) << ";\n"
+			"	while " << POST_DECR("state.nacts") << " > 0 do\n"
+			"		begin match " << AT( A(), POST_INCR("state.acts") ) << " with\n";
+			ACTION_SWITCH();
+			SWITCH_DEFAULT() <<
+			"		end;\n"
+			"	done\n"
+      "\twith Goto_again -> () end;\n";
+	}
+  out << "\tdo_again ()\n";
+
+//	if ( redFsm->anyRegActions() || redFsm->anyActionGotos() || 
+//			redFsm->anyActionCalls() || redFsm->anyActionRets() )
+  out << "\tand do_again () =\n";
+
+	if ( redFsm->anyToStateActions() ) {
+		out <<
+			"	state.acts <- " << AT( TSA(), vCS() ) << ";\n"
+			"	state.nacts <- " << AT( A(), POST_INCR("state.acts") ) << ";\n"
+			"	while " << POST_DECR("state.nacts") << " > 0 do\n"
+			"		begin match " << AT( A(), POST_INCR("state.acts") ) << " with\n";
+			TO_STATE_ACTION_SWITCH();
+			SWITCH_DEFAULT() <<
+			"		end\n"
+			"	done;\n"
+			"\n";
+	}
+
+	if ( redFsm->errState != 0 ) {
+		outLabelUsed = true;
+		out << 
+			"	match " << vCS() << " with\n"
+      "\t| " << redFsm->errState->id << " -> do_out ()\n"
+      "\t| _ ->\n";
+	}
+
+  out << "\t" << P() << " <- " << P() << " + 1;\n";
+
+	if ( !noEnd ) {
+		out << 
+			"	if " << P() << " <> " << PE() << " then\n"
+			"		do_resume ()\n"
+      "\telse do_test_eof ()\n";
+	}
+	else {
+		out << 
+			"	do_resume ()\n";
+	}
+
+//	if ( testEofUsed )
+	out << "and do_test_eof () =\n";
+
+	if ( redFsm->anyEofTrans() || redFsm->anyEofActions() ) {
+		out << 
+			"	if " << P() << " = " << vEOF() << " then\n"
+			"	begin try\n";
+
+		if ( redFsm->anyEofTrans() ) {
+			out <<
+				"	if " << AT( ET(), vCS() ) << " > 0 then\n"
+				"	begin\n"
+        "   state.trans <- " << CAST(transType) << "(" << AT( ET(), vCS() ) << " - 1);\n"
+				"		raise Goto_eof_trans;\n"
+				"	end;\n";
+		}
+
+		if ( redFsm->anyEofActions() ) {
+			out <<
+				"	let __acts = ref " << AT( EA(), vCS() ) << " in\n"
+				"	let __nacts = ref " << AT( A(), "!__acts" ) << " in\n"
+        " incr __acts;\n"
+				"	while !__nacts > 0 do\n"
+        "   decr __nacts;\n"
+				"		begin match " << AT( A(), POST_INCR("__acts.contents") ) << " with\n";
+				EOF_ACTION_SWITCH();
+				SWITCH_DEFAULT() <<
+				"		end;\n"
+				"	done\n";
+		}
+
+		out << 
+			"	with Goto_again -> do_again ()\n"
+			"	| Goto_eof_trans -> do_eof_trans () end\n"
+			"\n";
+	}
+  else
+  {
+    out << "\t()\n";
+  }
+
+	if ( outLabelUsed )
+		out << "	and do_out () = ()\n";
+
+  out << "\tin do_start ()\n";
+	out << "	end;\n";
+}
+
+void OCamlFlatCodeGen::initVarTypes()
+{
+	slenType = ARRAY_TYPE(MAX(redFsm->maxSpan, redFsm->maxCondSpan));
+	transType = ARRAY_TYPE(redFsm->maxIndex+1);
+	indsType = ARRAY_TYPE(redFsm->maxFlatIndexOffset);
+	condsType = ARRAY_TYPE(redFsm->maxCondIndexOffset);
+}