Simulating a preprocessor using files - File Operations Source Code in C

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Home » C Home » File Operations Home » Simulating a preprocessor using files

A D V E R T I S E M E N T

Title	Simulating a preprocessor using files
Author	Padmanabhan.M
Author Email	karz_20 [at] yahoo.co.in
Description	This menu driven program is to open a file and doing the operation of a C preprocessor, like deleting the comments, including the header files etc and then finally to store the resultant progran in another file called.
Category	C » File Operations
Hits	366977
Code	Select and Copy the Code
#include<stdio.h> #include<conio.h> output() { FILE fo; char c; fo=fopen("outputc.c","r"); clrscr(); printf("__________________________________________________________________ _______ "); printf(" The output file. "); printf("__________________________________________________________________ _______ "); do { c=getc(fo); putchar(c); }while(c!=EOF); printf(" ________________________________________________________________ __________ "); fclose(fo); getch(); } comment() { FILE fs,fd; char ch,c,fi[20]; // clrscr(); fflush(stdin); printf(" Enter the file to be read:"); gets(fi); fs=fopen(fi,"r"); fd=fopen("outputc.c","w+"); if((fd==NULL)\|\|(fs==NULL)) { printf(" Sorry, The input file does not exist."); getch(); } do { c=fgetc(fs); if(c=='/') { if((c=fgetc(fs))=='') { while(1) { if((c=fgetc(fs))=='') { if((c=fgetc(fs))=='/') { ch=fgetc(fs); c=fgetc(fs); break; } } } } } { putchar(c); fputc(c,fd); } }while(c!=EOF); fclose(fs); fclose(fd); return; } include() { FILE fs,fd,ft; char c,temp[50],name[50],ch,fin[10],*path;//,a[]="define"; int i=0,f; // clrscr(); fflush(stdin); printf(" Enter the file to be read:"); gets(fin); fs=fopen(fin,"r"); fd=fopen("outputc.c","w+"); if((fd==NULL)\|\|(fs==NULL)) { printf(" Sorry, The input file does not exist."); getch(); } do { c=fgetc(fs); if(c=='#') { while((c=fgetc(fs))!=' ') { if(c=='<' \|\| c=='"') { c=fgetc(fs); do { temp[i]=c; i++; c=fgetc(fs); }while(c!='>'&& c!='"'); } } temp[i]='

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