46 lines
1.8 KiB
C#
46 lines
1.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using Irony.Interpreter.Ast;
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using Irony.Parsing;
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namespace irules.core
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{
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[Language("IRule", "0.1", "Clauses grammar.")]
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public class ClauseGrammar : Grammar
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{
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public ClauseGrammar()
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{
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var comment = new CommentTerminal("comment", "#", "\n");
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NonGrammarTerminals.Add(comment);
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NonTerminal expr = new NonTerminal("expr");
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NonTerminal singleByOr = new NonTerminal("singleByOr");
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NonTerminal singleByAnd = new NonTerminal("singleByAnd");
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NonTerminal idList = new NonTerminal("idList");
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NonTerminal idOrRelation = new NonTerminal("idOrRelation");
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NonTerminal SOrOr = new NonTerminal("SOrOr");
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IdentifierTerminal id = new IdentifierTerminal("Id");
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var orExpr = new NonTerminal("OrExpr", typeof(BinaryOperationNode));
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var andExpr = new NonTerminal("AndExpr", typeof(BinaryOperationNode));
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var neg = new NonTerminal("Negation", typeof(UnaryOperationNode))
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{
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Rule = "^" + andExpr + ReduceHere()
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};
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expr.Rule = "(" + expr + ")" | SOrOr ;
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SOrOr.Rule = orExpr | singleByOr;
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orExpr.Rule = expr + "|" + expr;
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singleByOr.Rule = andExpr | singleByAnd;
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andExpr.Rule = expr + "&" + expr;
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singleByAnd.Rule = neg | idOrRelation;
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idOrRelation.Rule = id | id + "(" + idList + ")";
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idList.Rule = id | idList + "," + id;
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RegisterBracePair("(", ")");
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RegisterOperators(30, "&|^");
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Root = expr;
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}
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}
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}
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