简单的行编辑器源程序

1、#include<string.h>#include<stdio.h>#include<stdlib.h>#defineMAXL100/*最大行数*/#defineMAXC80/*每行最大字符数*/#definetrue1charlinesMAXLMAXC=0;voidedit(char(*lines)MAXC);voidmodify(char(*lines)MAXC);voidmydelete(char(*lines)MAXC);voidsearch(char(*lines)MAXC);voidreplace(char(*lines)MAXC);voids

2、avetofile(char(*lines)MAXC);voidmyexit(char(*lines)MAXC);voidmenu(char(*lines)MAXC)intselection;dosystem("cls");puts("tt*MUNU*nn");puts("tt1.Editnewline");puts("tt2.Replaceline");puts("tt3.Deleteline");puts("tt4.Searchline");puts("tt5.

3、Modifydata");puts("tt6.Save");puts("tt0.Exit");puts("nntt*n");printf("Pleaseselectanumber:bb");doscanf("%d",&selection);if(selection<0|selection>6)printf("Invalidselection!Pleasetryagain");printf("andselectanumber:bbn&qu

4、ot;);elsebreak;while(true);switch(selection)case1:edit(lines);break;case5:modify(lines);break;case3:mydelete(lines);break;case4:search(lines);break;case2:replace(lines);break;case6:savetofile(lines);break;case0:myexit(lines);while(true);intreadfile(char(*lines)MAXC,FILE*pfile)inti=0;while(!feof(pfil

5、e)fgets(linesi,MAXC,pfile);/*if(!strstr(linesi,"n")return1;*/i;return0;主函数/*/main()FILE*pfile;pfile=fopen("Linedit.txt","a");readfile(lines,pfile);fclose(pfile);menu(lines);编辑 */*voidedit(char(*lines)MAXC)inti,index;/*system("cls");*/clrscr();for(i=0,index=0;i

6、<MAXL;i)if(linesi0!=0)index;printf("%d:%s",index,linesi);printf("nnPleasetypeanewline:n");fflush(stdin);for(i=0;i<MAXL;i)if(linesi0='0')写入 */*每行第一个字符作为标志位空行可fgets(linesi,MAXC,stdin);return;elsecontinue;替换/*/voidreplace(char(*lines)MAXC)inti;intindline;intj,k;do/*sys

7、tem("cls");*/clrscr();/*打印所有*/for(i=0;i<MAXL;i)if(linesi0!=0)printf("%d:%s",i1,linesi);printf("nnWhichlinedoyouprefertoreplace?(Toquitpleaseinput0)bb");scanf("%d",&indline);if(indline=0)return;elsefor(j=0,k=0;j<MAXL;j)if(linesj0!=0)k;if(k=indline)pri

8、ntf("nnThelinetobereplacedis:n%s",linesj);printf("Pleasetypeyournewline:n");memset(linesj,0,MAXC);fflush(stdin);fgets(linesj,MAXC,stdin);break;while(true);删除/*/*voidmydelete(char(*lines)MAXC)inti,index;intindline;intj,k;do/*system("cls");*/clrscr();for(i=0,index=0;i<

9、MAXL;i)if(linesi0!=0)index;printf("%d:%s",index,linesi);printf("nnWhichlinedoyouprefertodelete?(Toquitpleaseinput0)bb");scanf("%d",&indline);if(indline=0)return;elsefor(j=0,k=0;j<MAXL;j)if(linesj0!=0)k;if(k=indline)printf("Thelinetobedeletedis:n%sn",lin

10、esj);memset(linesj,0,MAXC);system("pause");break;while(true);查找/*/*voidsearch(char(*lines)MAXC)inti,index;intindline;intj,k;do/*system("cls");*/clrscr();for(i=0,index=0;i<MAXL;i)if(linesi0!=0)index;printf("%d:%s",index,linesi);printf("nnWhichlinedoyouwanttosearc

11、h?(Toquitpleaseinput0)bb");scanf("%d",&indline);if(indline=0)return;elsefor(j=0,k=0;j<MAXL;j)if(linesj0!=0)k;if(k=indline)printf("Thelinetobesearchedis:n%sn",linesj);system("pause");break;while(true);修改/*/*在sSrc中用sReplaceStr替换sMatchStr*/intmodifystr(char*sSr

12、c,char*sMatchStr,char*sReplaceStr)intStringLen;charcaNewStringMAXC;char*FindPos=strstr(sSrc,sMatchStr);if(!FindPos)|(!sMatchStr)return-1;while(FindPos)memset(caNewString,0,sizeof(caNewString);StringLen=FindPos-sSrc;strncpy(caNewString,sSrc,StringLen);strcat(caNewString,sReplaceStr);strcat(caNewStrin

13、g,FindPosstrlen(sMatchStr);strcpy(sSrc,caNewString);FindPos=strstr(sSrc,sMatchStr);return0;voidmodify(char(*lines)MAXC)inti,indline;charbufMAXC;intk;intj;char*token=0;charsearchMAXC,replaceMAXC;do/*system("cls");*/clrscr();for(i=0;i<MAXL;i)if(linesi0!='0')printf("%d:%s"

14、;,i1,linesi);printf("nnWhichlinedoyouprefertomodify?(Toquitpleaseinput0)bb");scanf("%d",&indline);if(indline=0)return;elsefor(j=0,k=0;j<MAXL;j)if(linesj0!=0)k;if(k=indline)printf("nnThelinetobereplacedis:n%s",linesj);printf("nnInputthesearchstringandtherepla

15、ce");printf("(Toquitpleaseinputq):");memset(buf,0,MAXC);fflush(stdin);fgets(buf,MAXC,stdin);k=strlen(buf)-1;if(bufk='n')bufk='0'if(*buf='q'&&*(buf1)='0')return;memset(search,0,MAXC);memset(replace,0,MAXC);token=strtok(buf,"");strcpy(search,token);token=strtok(NULL,"");strcpy(replace,token);modifystr(linesj,search,replace);break;while(true);voidsavetofile(char(*lines)MAXC)FILE*pfile;inti;pfile=fopen("Linedit.txt","w");for(i=0;i<MAXL;i)if(linesi0!='0')fputs(linesi