詞法分析報告設(shè)計實驗報告材料(附代碼)

1/11 實驗一詞法分析設(shè)計型：綜合求：必修單詞的根本分類：2/11 個局部:詞法分析程序設(shè)計要求輸出形式:Ifi=0thenn++;輸出形式為：單詞二元序列類型位置〔行，列〕i符=算符0n符；分界符3/11 a%)；實驗報告正文令首先構(gòu)造六個表，ueortsticstructswitchthisvoidwhilethenDelimiter[]={";","(",")","[","]",",",".","{","}"};分界符表單詞種別碼2Operator[]={"+","-","*","/"};算術(shù)運算符表單詞種別碼3R_operators[]={"<","<=","==",">",">="},關(guān)鍵字表,單詞種別碼1;stringNumber[100];常數(shù)表單詞種別碼5;stringIdentifier[100];標(biāo)示符表單詞種別碼6;4/11eanaiyse()構(gòu)造思路，程序設(shè)計圖：綜合以上分析，畫出整個程序的運行分析程序圖，如下：5/11 否效是是否是否是字母嗎是嗎否配是否是是數(shù)字嗎否指向下一字符是否是界符嗎否是6/11令軟件的測試方法和測試結(jié)果：通過此次實驗，讓我了解到如何設(shè)計、編制并調(diào)試詞法分析程序，熟悉了構(gòu)造加深了對C++語言的用途的理解。本程序的數(shù)據(jù)輸入采取直接從文件中讀取，7/11 附錄該程序的源代碼：#include<iostream>#include<string>usingnamespacestd;#defineMAX33charch='';staticintline=1,row=0;intNumberCount=0,IdCount=0;for(i=0;i<MAX;i++){if(key[i].pare(c)==0)return1;}lete","do","double",A'))){elseenumfloatforifintlongichZchA)ch=ch+32;//,"new","private","protected","public","re換成小寫ister","return","short","static",return1;n"};/鍵字表單詞種別elsereturn0;string}}if(c>='0'&&c<='9')return1;elsereturn0;號表的指針intInsertId(strings){8/11wordfor(inti=0;i<IdCount;i++){ifIdentifieris}elseif(IdCount==i+1){Identifier[IdCount]=s;IdCount++;}}數(shù)表的指針intInsertNumber(strings){for(inti=0;i<NumberCount;i++){ifNumberisi}elseif(NumberCount==i+1){umberNumberCountsnNumberCount}}}voidanalyse(FILE*fpin){ingarr否讀取到文件末尾或者讀取出錯{if(ch==''||ch=='\t'||ch=='\n')//刪除空格類字符，包括回車、制表符空格{fchn}}elseif(IsLetter(ch)){while(IsLetter(ch)||IsNumber(ch)){rrarrchch=fgetc(fpin);}一個位置rr{cout<<arr<<"\t\t(1,"<<arr<<")"<<"\t\t("<<line<<","<<row<<")"}{InsertId(arr);cout<<arr<<"\t\t(6,"<<arr<<")"<<"\t\t標(biāo)識符9/11wordnerowettlinerowen}}elseif(IsNumber(ch)){while(IsNumber(ch))//||ch=='.'&&IsNumch=fgetc(fpin);{rarrchch=fgetc(fpin);}terchwhile(IsLetter(ch)||IsNumber(ch)){arrarrch;chfgetcfpin);}fseek(fpin,-1L,SEEK_CUR);if(ch=='('||IsNumber(ch)||IsLetter(ch)){fseek(fpin,-1L,SEEK_CUR);符tt"<<line<<","<<row<<")"<<endl}cout<<arr+ch<<"\t\tError"<<"\t\tError"<<"\t\t("<<line<<","<<row<<")"<<endl;kcase'-':{ch=fgetc(fpin);cout<<arr<<"\t\tError"<<"\t\tError"<<"if(ch=='('||IsNumber(ch)||IsLetter(ch))\t\t("<<line<<","<<row<<")"<<endl;}InsertNumber(arr);一{fseek(fpin,-1L,SEEK_CUR);cout<<"-"<<"\tt"<<line<<","<<row<<")"<<enelse{cout<<arr+ch<<"\t\tError"<<"\t\tError"<<"\t\t("<<line<<","<<row<<")"<<cout<<arr<<"\t\t(5,"<<arr<<")"<<"\t\t}break;10/11wordcase'*':cout<<"-"<<"\t\t(3,*)"<"\t\tdl;break;術(shù)運算符case'>':{ch=fgetc(fpin);tt"<<line<<","<<row<<")"<<encase'=':{ch=fgetc(fpin);{cout<<"=="<<"\t\t(4,==關(guān)系運算符if(ch=='=')cout<<">="<<"\t\t(4,>=)"<tt"<<line<<","<<row<<")"<<en)"<<"\t\telsedl;}"<<"\t\t("<<line<<","<<row<<")"<<en}}break;}break;case'<':{ch=fgetc(fpin);case'/':cout<<ch<<"\t\t(3,"<<ch<<")i(ch=='=')cout<<"<="<<"\t\t(4,<=)"<ttlinerowetline<<row<<")"<<endl;kcase'(':case')':case'[':case']':case';':case'.':case',':case'{':if(ch=='>')cout<<"<>"<<"\t\t(4,<>)"<"<<"\t("<<line<<","<<row<<")"<<endl;運算符"<<"\t("<<line<<","<<row<<")"<<endl;fseek(fpin