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authorLorry Tar Creator <lorry-tar-importer@lorry>2014-10-13 19:14:30 +0000
committerLorry Tar Creator <lorry-tar-importer@lorry>2014-10-13 19:14:30 +0000
commiteafd7a3974e8605fd02794269db6114a3446e016 (patch)
tree064737b35dbe10f2995753ead92f95bac30ba048 /ragel/mltable.cpp
downloadragel-tarball-eafd7a3974e8605fd02794269db6114a3446e016.tar.gz
ragel-6.9ragel-6.9
Diffstat (limited to 'ragel/mltable.cpp')
-rw-r--r--ragel/mltable.cpp1131
1 files changed, 1131 insertions, 0 deletions
diff --git a/ragel/mltable.cpp b/ragel/mltable.cpp
new file mode 100644
index 0000000..8f70b7c
--- /dev/null
+++ b/ragel/mltable.cpp
@@ -0,0 +1,1131 @@
+/*
+ * Copyright 2001-2006 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 "ragel.h"
+#include "mltable.h"
+#include "redfsm.h"
+#include "gendata.h"
+
+/* Determine if we should use indicies or not. */
+void OCamlTabCodeGen::calcIndexSize()
+{
+ int sizeWithInds = 0, sizeWithoutInds = 0;
+
+ /* Calculate cost of using with indicies. */
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ int totalIndex = st->outSingle.length() + st->outRange.length() +
+ (st->defTrans == 0 ? 0 : 1);
+ sizeWithInds += arrayTypeSize(redFsm->maxIndex) * totalIndex;
+ }
+ sizeWithInds += arrayTypeSize(redFsm->maxState) * redFsm->transSet.length();
+ if ( redFsm->anyActions() )
+ sizeWithInds += arrayTypeSize(redFsm->maxActionLoc) * redFsm->transSet.length();
+
+ /* Calculate the cost of not using indicies. */
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ int totalIndex = st->outSingle.length() + st->outRange.length() +
+ (st->defTrans == 0 ? 0 : 1);
+ sizeWithoutInds += arrayTypeSize(redFsm->maxState) * totalIndex;
+ if ( redFsm->anyActions() )
+ sizeWithoutInds += arrayTypeSize(redFsm->maxActionLoc) * totalIndex;
+ }
+
+ /* If using indicies reduces the size, use them. */
+ useIndicies = sizeWithInds < sizeWithoutInds;
+}
+
+std::ostream &OCamlTabCodeGen::TO_STATE_ACTION( RedStateAp *state )
+{
+ int act = 0;
+ if ( state->toStateAction != 0 )
+ act = state->toStateAction->location+1;
+ out << act;
+ return out;
+}
+
+std::ostream &OCamlTabCodeGen::FROM_STATE_ACTION( RedStateAp *state )
+{
+ int act = 0;
+ if ( state->fromStateAction != 0 )
+ act = state->fromStateAction->location+1;
+ out << act;
+ return out;
+}
+
+std::ostream &OCamlTabCodeGen::EOF_ACTION( RedStateAp *state )
+{
+ int act = 0;
+ if ( state->eofAction != 0 )
+ act = state->eofAction->location+1;
+ out << act;
+ return out;
+}
+
+
+std::ostream &OCamlTabCodeGen::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 &OCamlTabCodeGen::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 );
+ }
+ }
+
+ genLineDirective( out );
+ return out;
+}
+
+std::ostream &OCamlTabCodeGen::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 );
+ }
+ }
+
+ genLineDirective( out );
+ return out;
+}
+
+std::ostream &OCamlTabCodeGen::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 );
+ }
+ }
+
+ genLineDirective( out );
+ return out;
+}
+
+
+std::ostream &OCamlTabCodeGen::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 );
+ }
+ }
+
+ genLineDirective( out );
+ return out;
+}
+
+std::ostream &OCamlTabCodeGen::COND_OFFSETS()
+{
+ out << "\t";
+ int totalStateNum = 0, curKeyOffset = 0;
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ /* Write the key offset. */
+ out << curKeyOffset;
+ if ( !st.last() ) {
+ out << ARR_SEP();
+ if ( ++totalStateNum % IALL == 0 )
+ out << "\n\t";
+ }
+
+ /* Move the key offset ahead. */
+ curKeyOffset += st->stateCondList.length();
+ }
+ out << "\n";
+ return out;
+}
+
+std::ostream &OCamlTabCodeGen::KEY_OFFSETS()
+{
+ out << "\t";
+ int totalStateNum = 0, curKeyOffset = 0;
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ /* Write the key offset. */
+ out << curKeyOffset;
+ if ( !st.last() ) {
+ out << ARR_SEP();
+ if ( ++totalStateNum % IALL == 0 )
+ out << "\n\t";
+ }
+
+ /* Move the key offset ahead. */
+ curKeyOffset += st->outSingle.length() + st->outRange.length()*2;
+ }
+ out << "\n";
+ return out;
+}
+
+
+std::ostream &OCamlTabCodeGen::INDEX_OFFSETS()
+{
+ 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. */
+ curIndOffset += st->outSingle.length() + st->outRange.length();
+ if ( st->defTrans != 0 )
+ curIndOffset += 1;
+ }
+ out << "\n";
+ return out;
+}
+
+std::ostream &OCamlTabCodeGen::COND_LENS()
+{
+ out << "\t";
+ int totalStateNum = 0;
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ /* Write singles length. */
+ out << st->stateCondList.length();
+ if ( !st.last() ) {
+ out << ARR_SEP();
+ if ( ++totalStateNum % IALL == 0 )
+ out << "\n\t";
+ }
+ }
+ out << "\n";
+ return out;
+}
+
+
+std::ostream &OCamlTabCodeGen::SINGLE_LENS()
+{
+ out << "\t";
+ int totalStateNum = 0;
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ /* Write singles length. */
+ out << st->outSingle.length();
+ if ( !st.last() ) {
+ out << ARR_SEP();
+ if ( ++totalStateNum % IALL == 0 )
+ out << "\n\t";
+ }
+ }
+ out << "\n";
+ return out;
+}
+
+std::ostream &OCamlTabCodeGen::RANGE_LENS()
+{
+ out << "\t";
+ int totalStateNum = 0;
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ /* Emit length of range index. */
+ out << st->outRange.length();
+ if ( !st.last() ) {
+ out << ARR_SEP();
+ if ( ++totalStateNum % IALL == 0 )
+ out << "\n\t";
+ }
+ }
+ out << "\n";
+ return out;
+}
+
+std::ostream &OCamlTabCodeGen::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 &OCamlTabCodeGen::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 &OCamlTabCodeGen::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 &OCamlTabCodeGen::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 &OCamlTabCodeGen::COND_KEYS()
+{
+ out << '\t';
+ int totalTrans = 0;
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ /* Loop the state's transitions. */
+ for ( GenStateCondList::Iter sc = st->stateCondList; sc.lte(); sc++ ) {
+ /* Lower key. */
+ out << ALPHA_KEY( sc->lowKey ) << ARR_SEP();
+ if ( ++totalTrans % IALL == 0 )
+ out << "\n\t";
+
+ /* Upper key. */
+ out << ALPHA_KEY( sc->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 << 0 << "\n";
+ return out;
+}
+
+std::ostream &OCamlTabCodeGen::COND_SPACES()
+{
+ out << '\t';
+ int totalTrans = 0;
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ /* Loop the state's transitions. */
+ for ( GenStateCondList::Iter sc = st->stateCondList; sc.lte(); sc++ ) {
+ /* Cond Space id. */
+ out << sc->condSpace->condSpaceId << 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 &OCamlTabCodeGen::KEYS()
+{
+ out << '\t';
+ int totalTrans = 0;
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ /* Loop the singles. */
+ for ( RedTransList::Iter stel = st->outSingle; stel.lte(); stel++ ) {
+ out << ALPHA_KEY( stel->lowKey ) << ARR_SEP();
+ if ( ++totalTrans % IALL == 0 )
+ out << "\n\t";
+ }
+
+ /* Loop the state's transitions. */
+ for ( RedTransList::Iter rtel = st->outRange; rtel.lte(); rtel++ ) {
+ /* Lower key. */
+ out << ALPHA_KEY( rtel->lowKey ) << ARR_SEP();
+ if ( ++totalTrans % IALL == 0 )
+ out << "\n\t";
+
+ /* Upper key. */
+ out << ALPHA_KEY( rtel->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 << 0 << "\n";
+ return out;
+}
+
+std::ostream &OCamlTabCodeGen::INDICIES()
+{
+ int totalTrans = 0;
+ out << '\t';
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ /* Walk the singles. */
+ for ( RedTransList::Iter stel = st->outSingle; stel.lte(); stel++ ) {
+ out << stel->value->id << ARR_SEP();
+ if ( ++totalTrans % IALL == 0 )
+ out << "\n\t";
+ }
+
+ /* Walk the ranges. */
+ for ( RedTransList::Iter rtel = st->outRange; rtel.lte(); rtel++ ) {
+ out << rtel->value->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 &OCamlTabCodeGen::TRANS_TARGS()
+{
+ int totalTrans = 0;
+ out << '\t';
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ /* Walk the singles. */
+ for ( RedTransList::Iter stel = st->outSingle; stel.lte(); stel++ ) {
+ RedTransAp *trans = stel->value;
+ out << trans->targ->id << ARR_SEP();
+ if ( ++totalTrans % IALL == 0 )
+ out << "\n\t";
+ }
+
+ /* Walk the ranges. */
+ for ( RedTransList::Iter rtel = st->outRange; rtel.lte(); rtel++ ) {
+ RedTransAp *trans = rtel->value;
+ out << trans->targ->id << ARR_SEP();
+ if ( ++totalTrans % IALL == 0 )
+ out << "\n\t";
+ }
+
+ /* The state's default target state. */
+ if ( st->defTrans != 0 ) {
+ RedTransAp *trans = st->defTrans;
+ out << trans->targ->id << ARR_SEP();
+ if ( ++totalTrans % IALL == 0 )
+ out << "\n\t";
+ }
+ }
+
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ if ( st->eofTrans != 0 ) {
+ RedTransAp *trans = st->eofTrans;
+ trans->pos = totalTrans;
+ out << trans->targ->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 &OCamlTabCodeGen::TRANS_ACTIONS()
+{
+ int totalTrans = 0;
+ out << '\t';
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ /* Walk the singles. */
+ for ( RedTransList::Iter stel = st->outSingle; stel.lte(); stel++ ) {
+ RedTransAp *trans = stel->value;
+ TRANS_ACTION( trans ) << ARR_SEP();
+ if ( ++totalTrans % IALL == 0 )
+ out << "\n\t";
+ }
+
+ /* Walk the ranges. */
+ for ( RedTransList::Iter rtel = st->outRange; rtel.lte(); rtel++ ) {
+ RedTransAp *trans = rtel->value;
+ TRANS_ACTION( trans ) << ARR_SEP();
+ if ( ++totalTrans % IALL == 0 )
+ out << "\n\t";
+ }
+
+ /* The state's default index goes next. */
+ if ( st->defTrans != 0 ) {
+ RedTransAp *trans = st->defTrans;
+ TRANS_ACTION( trans ) << ARR_SEP();
+ if ( ++totalTrans % IALL == 0 )
+ out << "\n\t";
+ }
+ }
+
+ for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
+ if ( st->eofTrans != 0 ) {
+ RedTransAp *trans = st->eofTrans;
+ TRANS_ACTION( trans ) << 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 &OCamlTabCodeGen::TRANS_TARGS_WI()
+{
+ /* 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 &OCamlTabCodeGen::TRANS_ACTIONS_WI()
+{
+ /* 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 OCamlTabCodeGen::GOTO( ostream &ret, int gotoDest, bool inFinish )
+{
+ ret << "begin " << vCS() << " <- " << gotoDest << "; " <<
+ CTRL_FLOW() << "raise Goto_again end";
+}
+
+void OCamlTabCodeGen::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 OCamlTabCodeGen::CURS( ostream &ret, bool inFinish )
+{
+ ret << "(_ps)";
+}
+
+void OCamlTabCodeGen::TARGS( ostream &ret, bool inFinish, int targState )
+{
+ ret << "(" << vCS() << ")";
+}
+
+void OCamlTabCodeGen::NEXT( ostream &ret, int nextDest, bool inFinish )
+{
+ ret << vCS() << " <- " << nextDest << ";";
+}
+
+void OCamlTabCodeGen::NEXT_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish )
+{
+ ret << vCS() << " <- (";
+ INLINE_LIST( ret, ilItem->children, 0, inFinish );
+ ret << ");";
+}
+
+void OCamlTabCodeGen::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 OCamlTabCodeGen::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 OCamlTabCodeGen::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 OCamlTabCodeGen::BREAK( ostream &ret, int targState )
+{
+ outLabelUsed = true;
+ ret << "begin " << P() << " <- " << P() << " + 1; " << CTRL_FLOW() << "raise Goto_out end";
+}
+
+void OCamlTabCodeGen::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( ARRAY_TYPE(redFsm->maxCondOffset), CO() );
+ COND_OFFSETS();
+ CLOSE_ARRAY() <<
+ "\n";
+
+ OPEN_ARRAY( ARRAY_TYPE(redFsm->maxCondLen), CL() );
+ COND_LENS();
+ CLOSE_ARRAY() <<
+ "\n";
+
+ OPEN_ARRAY( WIDE_ALPH_TYPE(), CK() );
+ COND_KEYS();
+ CLOSE_ARRAY() <<
+ "\n";
+
+ OPEN_ARRAY( ARRAY_TYPE(redFsm->maxCondSpaceId), C() );
+ COND_SPACES();
+ CLOSE_ARRAY() <<
+ "\n";
+ }
+
+ OPEN_ARRAY( ARRAY_TYPE(redFsm->maxKeyOffset), KO() );
+ KEY_OFFSETS();
+ CLOSE_ARRAY() <<
+ "\n";
+
+ OPEN_ARRAY( WIDE_ALPH_TYPE(), K() );
+ KEYS();
+ CLOSE_ARRAY() <<
+ "\n";
+
+ OPEN_ARRAY( ARRAY_TYPE(redFsm->maxSingleLen), SL() );
+ SINGLE_LENS();
+ CLOSE_ARRAY() <<
+ "\n";
+
+ OPEN_ARRAY( ARRAY_TYPE(redFsm->maxRangeLen), RL() );
+ RANGE_LENS();
+ CLOSE_ARRAY() <<
+ "\n";
+
+ OPEN_ARRAY( ARRAY_TYPE(redFsm->maxIndexOffset), IO() );
+ INDEX_OFFSETS();
+ CLOSE_ARRAY() <<
+ "\n";
+
+ if ( useIndicies ) {
+ OPEN_ARRAY( ARRAY_TYPE(redFsm->maxIndex), I() );
+ INDICIES();
+ CLOSE_ARRAY() <<
+ "\n";
+
+ OPEN_ARRAY( ARRAY_TYPE(redFsm->maxState), TT() );
+ TRANS_TARGS_WI();
+ CLOSE_ARRAY() <<
+ "\n";
+
+ if ( redFsm->anyActions() ) {
+ OPEN_ARRAY( ARRAY_TYPE(redFsm->maxActionLoc), TA() );
+ TRANS_ACTIONS_WI();
+ CLOSE_ARRAY() <<
+ "\n";
+ }
+ }
+ else {
+ 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 keys : int; 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 OCamlTabCodeGen::LOCATE_TRANS()
+{
+ out <<
+ " state.keys <- " << AT( KO(), vCS() ) << ";\n"
+ " state.trans <- " << CAST(transType) << AT( IO(), vCS() ) << ";\n"
+ "\n"
+ " let klen = " << AT( SL(), vCS() ) << " in\n"
+ " if klen > 0 then begin\n"
+ " let lower : " << signedKeysType << " ref = ref state.keys in\n"
+ " let upper : " << signedKeysType << " ref = ref " << CAST(signedKeysType) <<
+ "(state.keys + klen - 1) in\n"
+ " while !upper >= !lower do\n"
+ " let mid = " << CAST(signedKeysType) << " (!lower + ((!upper - !lower) / 2)) in\n"
+ " if " << GET_WIDE_KEY() << " < " << AT( K(), "mid" ) << " then\n"
+ " upper := " << CAST(signedKeysType) << " (mid - 1)\n"
+ " else if " << GET_WIDE_KEY() << " > " << AT( K(), "mid" ) << " then\n"
+ " lower := " << CAST(signedKeysType) << " (mid + 1)\n"
+ " else begin\n"
+ " state.trans <- state.trans + " << CAST(transType) << " (mid - state.keys);\n"
+ " raise Goto_match;\n"
+ " end\n"
+ " done;\n"
+ " state.keys <- state.keys + " << CAST(keysType) << " klen;\n"
+ " state.trans <- state.trans + " << CAST(transType) << " klen;\n"
+ " end;\n"
+ "\n"
+ " let klen = " << AT( RL(), vCS() ) << " in\n"
+ " if klen > 0 then begin\n"
+ " let lower : " << signedKeysType << " ref = ref state.keys in\n"
+ " let upper : " << signedKeysType << " ref = ref " << CAST(signedKeysType) <<
+ "(state.keys + (klen * 2) - 2) in\n"
+ " while !upper >= !lower do\n"
+ " let mid = " << CAST(signedKeysType) << " (!lower + (((!upper - !lower) / 2) land (lnot 1))) in\n"
+ " if " << GET_WIDE_KEY() << " < " << AT( K() , "mid" ) << " then\n"
+ " upper := " << CAST(signedKeysType) << " (mid - 2)\n"
+ " else if " << GET_WIDE_KEY() << " > " << AT( K(), "mid+1" ) << " then\n"
+ " lower := " << CAST(signedKeysType) << " (mid + 2)\n"
+ " else begin\n"
+ " state.trans <- state.trans + " << CAST(transType) << "((mid - state.keys) / 2);\n"
+ " raise Goto_match;\n"
+ " end\n"
+ " done;\n"
+ " state.trans <- state.trans + " << CAST(transType) << " klen;\n"
+ " end;\n"
+ "\n";
+}
+
+void OCamlTabCodeGen::COND_TRANSLATE()
+{
+ out <<
+ " _widec = " << GET_KEY() << ";\n"
+ " _klen = " << CL() << "[" << vCS() << "];\n"
+ " _keys = " << CAST(keysType) << " ("<< CO() << "[" << vCS() << "]*2);\n"
+ " if ( _klen > 0 ) {\n"
+ " " << signedKeysType << " _lower = _keys;\n"
+ " " << signedKeysType << " _mid;\n"
+ " " << signedKeysType << " _upper = " << CAST(signedKeysType) <<
+ " (_keys + (_klen<<1) - 2);\n"
+ " while (true) {\n"
+ " if ( _upper < _lower )\n"
+ " break;\n"
+ "\n"
+ " _mid = " << CAST(signedKeysType) <<
+ " (_lower + (((_upper-_lower) >> 1) & ~1));\n"
+ " if ( " << GET_WIDE_KEY() << " < " << CK() << "[_mid] )\n"
+ " _upper = " << CAST(signedKeysType) << " (_mid - 2);\n"
+ " else if ( " << GET_WIDE_KEY() << " > " << CK() << "[_mid+1] )\n"
+ " _lower = " << CAST(signedKeysType) << " (_mid + 2);\n"
+ " else {\n"
+ " switch ( " << C() << "[" << CO() << "[" << vCS() << "]"
+ " + ((_mid - _keys)>>1)] ) {\n";
+
+ for ( CondSpaceList::Iter csi = condSpaceList; csi.lte(); csi++ ) {
+ GenCondSpace *condSpace = csi;
+ out << " case " << condSpace->condSpaceId << ": {\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 <<
+ " break;\n"
+ " }\n";
+ }
+
+ SWITCH_DEFAULT();
+
+ out <<
+ " }\n"
+ " break;\n"
+ " }\n"
+ " }\n"
+ " }\n"
+ "\n";
+}
+
+void OCamlTabCodeGen::writeExec()
+{
+ testEofUsed = false;
+ outLabelUsed = false;
+ initVarTypes();
+
+ out <<
+ " begin\n";
+// " " << klenType << " _klen";
+
+// if ( redFsm->anyRegCurStateRef() )
+// out << ", _ps";
+
+/*
+ out << " " << transType << " _trans;\n";
+
+ if ( redFsm->anyConditions() )
+ out << " " << WIDE_ALPH_TYPE() << " _widec;\n";
+
+ if ( redFsm->anyToStateActions() || redFsm->anyRegActions()
+ || redFsm->anyFromStateActions() )
+ {
+ out <<
+ " int _acts;\n"
+ " int _nacts;\n";
+ }
+
+ out <<
+ " " << keysType << " _keys;\n"
+ "\n";
+// " " << PTR_CONST() << WIDE_ALPH_TYPE() << POINTER() << "_keys;\n"
+*/
+
+ out <<
+ " let state = { keys = 0; 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_match ()\n";
+
+ out << "and do_match () =\n";
+
+ if ( useIndicies )
+ out << " state.trans <- " << CAST(transType) << AT( I(), "state.trans" ) << ";\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 OCamlTabCodeGen::initVarTypes()
+{
+ int klenMax = MAX(MAX(redFsm->maxCondLen, redFsm->maxRangeLen),
+ redFsm->maxSingleLen);
+ int keysMax = MAX(MAX(redFsm->maxKeyOffset, klenMax),
+ redFsm->maxCondOffset);
+ int transMax = MAX(MAX(redFsm->maxIndex+1, redFsm->maxIndexOffset), keysMax);
+ transMax = MAX(transMax, klenMax);
+ transType = ARRAY_TYPE(transMax);
+ klenType = ARRAY_TYPE(klenMax);
+ keysType = ARRAY_TYPE(keysMax);
+ signedKeysType = ARRAY_TYPE(keysMax, true);
+}