BYC.rar_things

#include<stdio.h> #include<string.h> #include<ctype.h> #include<stdlib.h> char some[20]; char ch; int i,c; struct suct { int id; char *code; }; struct suct keyword[] = { {1,"main"}, {2,"int"}, {3,"char"}, {4,"if"}, {5,"else"}, {6,"for"}, {7,"while"}, {8,"do"} }; int reserve(char* p) { int i=0; for(i=0;i<8;i++ ) { if(strcmp(p,keyword[i].code)==0) return(keyword[i].id); } return(-1); } void output(int t,char *s) { printf("[ %d , %s ]\n",t,s); } void getto(FILE*fp) { ch=fgetc(fp); if(isalpha(ch)) { some[0]=ch; i=1; ch=fgetc(fp); while(isalpha(ch)||isalnum(ch)) { some[i]=ch; i++ ; ch=fgetc(fp); } fseek(fp,-1,1); some[i]='\0'; c=reserve(some); if(c!=-1) output(1,some); else output(2,some); } else if(isdigit(ch)) { some[0]=ch; ch=fgetc(fp); i=1; while(isdigit(ch)) { some[i]=ch; i++ ; ch=fgetc(fp); } some[i]='\0'; fseek(fp,-1,1); output(3,some); } else switch(ch) { case'=':ch=fgetc(fp); if(ch=='=') output(4,"=="); else { fseek(fp,-1,1); output(4,"="); } break; case'-':output(4,"-");break; case'*':output(4,"*");break; case'/':output(4,"/");break; case'(':output(5,"(");break; case')':output(5,")");break; case'[':output(5,"[");break; case']':output(5,"]");break; case'{':output(5,"{");break; case'}':output(5,"}");break; case',':output(5,",");break; case':':output(5,":");break; case';':output(5,";");break; case'>':ch=fgetc(fp); if(ch=='=') output(4,">="); else { fseek(fp,-1,1); output(4,">"); } break; case'<':ch=fgetc(fp); if(ch=='=') output(4,"<="); else { fseek(fp,-1,1); output(4,"<"); } break; case'!':ch=fgetc(fp); if(ch=='=') output(4,"!="); else { fseek(fp,-1,1); output(-1,"ERROR!"); } break; } } void main() {FILE*fp; char wlj[30]; int i; printf("Please input the file you want to ansform:"); scanf("%s",&wlj); if((fp=fopen("file1.txt","w"))==NULL) {printf("cannot open file"); exit(0); } while(strlen(wlj)>0) { fputs(wlj,fp); fputs("\n",fp); } while(!feof(fp)) { getto(fp); } fclose(fp); }