moved source files into commit repository

1 files changed, 117 insertions, 0 deletions

diff --git a/src/dotgen.cc b/src/dotgen.cc
new file mode 100644
index 00000000..42f54159
--- /dev/null
+++ b/src/dotgen.cc
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2006-2018 Adrian Thurston <thurston@colm.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <stdbool.h>
+
+#include <iostream>
+
+#include "compiler.h"
+
+using namespace std;
+
+void Compiler::writeTransList( PdaState *state )
+{
+	ostream &out = *outStream;
+	for ( TransMap::Iter trans = state->transMap; trans.lte(); trans++ ) {
+		/* Write out the from and to states. */
+		out << "\t" << state->stateNum << " -> " << trans->value->toState->stateNum;
+
+		/* Begin the label. */
+		out << " [ label = \""; 
+		long key = trans->key;  
+		LangEl *lel = langElIndex[key];
+		if ( lel != 0 )
+			out << lel->name;
+		else
+			out << (char)key;
+
+		if ( trans->value->actions.length() > 0 ) {
+			out << " / ";
+			for ( ActDataList::Iter act = trans->value->actions; act.lte(); act++ ) {
+				switch ( *act & 0x3 ) {
+				case 1: 
+					out << "S(" << trans->value->actOrds[act.pos()] << ")";
+					break;
+				case 2: {
+					out << "R(" << prodIdIndex[(*act >> 2)]->data <<
+							", " << trans->value->actOrds[act.pos()] << ")";
+					break;
+				}
+				case 3: {
+					out << "SR(" << prodIdIndex[(*act >> 2)]->data << 
+							", " << trans->value->actOrds[act.pos()] << ")";
+					break;
+				}}
+				if ( ! act.last() )
+					out << ", ";
+			}
+		}
+
+		out << "\" ];\n";
+	}
+}
+
+void Compiler::writeDotFile( PdaGraph *graph )
+{
+	ostream &out = *outStream;
+	out << 
+		"digraph " << parserName << " {\n"
+		"	rankdir=LR;\n"
+		"	ranksep=\"0\"\n"
+		"	nodesep=\"0.25\"\n"
+		"\n";
+	
+	/* Define the psuedo states. Transitions will be done after the states
+	 * have been defined as either final or not final. */
+	out << 
+		"	node [ shape = point ];\n";
+	
+	for ( int i = 0; i < graph->entryStateSet.length(); i++ )
+		out << "\tENTRY" << i <<  " [ label = \"\" ];\n";
+
+	out << 
+		"\n"
+		"	node [ shape = circle, fixedsize = true, height = 0.6 ];\n";
+
+	/* Walk the states. */
+	for ( PdaStateList::Iter st = graph->stateList; st.lte(); st++ )
+		out << "	" << st->stateNum << " [ label = \"" << st->stateNum << "\" ];\n";
+
+	out << "\n";
+
+	/* Walk the states. */
+	for ( PdaStateList::Iter st = graph->stateList; st.lte(); st++ )
+		writeTransList( st );
+
+	/* Start state and other entry points. */
+	for ( PdaStateSet::Iter st = graph->entryStateSet; st.lte(); st++ )
+		out << "\tENTRY" << st.pos() << " -> " << (*st)->stateNum << " [ label = \"\" ];\n";
+
+	out <<
+		"}\n";
+}
+
+void Compiler::writeDotFile()
+{
+	writeDotFile( pdaGraph );
+}
+