keywordclass.cs

C#更新版的C语言的词法分析器

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace LAB1
{
    class keyWordClass
    {
        private List<CoupleClass> keywordList;

        public List<CoupleClass> KeywordList
        {
            get { return keywordList; }
            set { keywordList = value; }
        }
        public keyWordClass()
        {
            keywordList = new List<CoupleClass>();
            this.keywordList.Add(new CoupleClass("int", "INT"));
            this.keywordList.Add(new CoupleClass("double", "DBL"));
            this.keywordList.Add(new CoupleClass("for", "FOR"));
            this.keywordList.Add(new CoupleClass("while","WHILE"));
            this.keywordList.Add(new CoupleClass("if","IF"));
            this.keywordList.Add(new CoupleClass("else", "ELSE"));
            this.keywordList.Add(new CoupleClass("printf", "PNT"));
            this.keywordList.Add(new CoupleClass("switch","SWITCH"));
            this.keywordList.Add(new CoupleClass("case","CASE"));
            this.keywordList.Add(new CoupleClass("+","ADD"));
            this.keywordList.Add(new CoupleClass("-","MIN"));
            this.keywordList.Add(new CoupleClass("%","MOD"));
            this.keywordList.Add(new CoupleClass("++", "INC"));
            this.keywordList.Add(new CoupleClass("--", "DEC"));
            this.keywordList.Add(new CoupleClass(":=", "ASS"));
            this.keywordList.Add(new CoupleClass("==", "EQU"));
            this.keywordList.Add(new CoupleClass("/*", "CBN"));
            this.keywordList.Add(new CoupleClass("*/", "CEN"));
            this.keywordList.Add(new CoupleClass("{", "BEGIN"));
            this.keywordList.Add(new CoupleClass("}", "END"));
            this.keywordList.Add(new CoupleClass(",", "dot"));
            this.keywordList.Add(new CoupleClass("(", "SLP"));
            this.keywordList.Add(new CoupleClass(")", "SRP"));
            this.keywordList.Add(new CoupleClass("\"", "CONST"));
            this.keywordList.Add(new CoupleClass("#include", "LIB"));
        }
        public CoupleClass contains(string tokenIn)
        {
            foreach (CoupleClass item in this.keywordList)
            {
                if (item.KeyWord == tokenIn)
                {
                    return item;
                }
            }
            return null;
        }
    }
}