Esempio n. 1
0
        public void WriteParser()
        {
            Generator g = new Generator(tab);
            int oldPos = buffer.Pos;  // Pos is modified by CopySourcePart
            symSet.Add(tab.allSyncSets);

            fram = g.OpenFrame("Parser.frame");
            gen = g.OpenGen("Parser.cs");
            err = new StringWriter();
            foreach (Symbol sym in tab.terminals) GenErrorMsg(tErr, sym);

            g.GenCopyright();
            g.SkipFramePart("-->begin");

            if (usingPos != null) { CopySourcePart(usingPos, 0); gen.WriteLine(); }
            g.CopyFramePart("-->namespace");
            /* AW open namespace, if it exists */
            if (tab.nsName != null && tab.nsName.Length > 0) {
            gen.WriteLine("namespace {0} {{", tab.nsName);
            gen.WriteLine();
            }
            g.CopyFramePart("-->constants");
            GenTokens(); /* ML 2002/09/07 write the token kinds */
            gen.WriteLine("\tpublic const int maxT = {0};", tab.terminals.Count-1);
            GenPragmas(); /* ML 2005/09/23 write the pragma kinds */
            g.CopyFramePart("-->declarations"); CopySourcePart(tab.semDeclPos, 0);
            g.CopyFramePart("-->pragmas"); GenCodePragmas();
            g.CopyFramePart("-->productions"); GenProductions();
            g.CopyFramePart("-->parseRoot"); gen.WriteLine("\t\t{0}();", tab.gramSy.name); if (tab.checkEOF) gen.WriteLine("\t\tExpect(0);");
            g.CopyFramePart("-->initialization"); InitSets();
            g.CopyFramePart("-->errors"); gen.Write(err.ToString());
            g.CopyFramePart(null);
            /* AW 2002-12-20 close namespace, if it exists */
            if (tab.nsName != null && tab.nsName.Length > 0) gen.Write("}");
            gen.Close();
            buffer.Pos = oldPos;
        }
Esempio n. 2
0
        public void WriteScanner()
        {
            Generator g = new Generator(tab);
            fram = g.OpenFrame("Scanner.frame");
            gen = g.OpenGen("Scanner.cs");
            if (dirtyDFA) MakeDeterministic();

            g.GenCopyright();
            g.SkipFramePart("-->begin");

            g.CopyFramePart("-->namespace");
            if (tab.nsName != null && tab.nsName.Length > 0) {
            gen.Write("namespace ");
            gen.Write(tab.nsName);
            gen.Write(" {");
            }
            g.CopyFramePart("-->declarations");
            gen.WriteLine("\tconst int maxT = {0};", tab.terminals.Count - 1);
            gen.WriteLine("\tconst int noSym = {0};", tab.noSym.n);
            if (ignoreCase)
            gen.Write("\tchar valCh;       // current input character (for token.val)");
            g.CopyFramePart("-->initialization");
            WriteStartTab();
            g.CopyFramePart("-->casing1");
            if (ignoreCase) {
            gen.WriteLine("\t\tif (ch != Buffer.EOF) {");
            gen.WriteLine("\t\t\tvalCh = (char) ch;");
            gen.WriteLine("\t\t\tch = char.ToLower((char) ch);");
            gen.WriteLine("\t\t}");
            }
            g.CopyFramePart("-->casing2");
            gen.Write("\t\t\ttval[tlen++] = ");
            if (ignoreCase) gen.Write("valCh;"); else gen.Write("(char) ch;");
            g.CopyFramePart("-->comments");
            Comment com = firstComment;
            int comIdx = 0;
            while (com != null) {
            GenComment(com, comIdx);
            com = com.next; comIdx++;
            }
            g.CopyFramePart("-->literals"); GenLiterals();
            g.CopyFramePart("-->scan1");
            gen.Write("\t\t\t");
            if (tab.ignored.Elements() > 0) { PutRange(tab.ignored); } else { gen.Write("false"); }
            g.CopyFramePart("-->scan2");
            if (firstComment != null) {
            gen.Write("\t\tif (");
            com = firstComment; comIdx = 0;
            while (com != null) {
                gen.Write(ChCond(com.start[0]));
                gen.Write(" && Comment{0}()", comIdx);
                if (com.next != null) gen.Write(" ||");
                com = com.next; comIdx++;
            }
            gen.Write(") return NextToken();");
            }
            if (hasCtxMoves) { gen.WriteLine(); gen.Write("\t\tint apx = 0;"); } /* pdt */
            g.CopyFramePart("-->scan3");
            for (State state = firstState.next; state != null; state = state.next)
            WriteState(state);
            g.CopyFramePart(null);
            if (tab.nsName != null && tab.nsName.Length > 0) gen.Write("}");
            gen.Close();
        }