files.cpp
65bcbb90734blammm-master

files.cpp
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			#include "stdio.h"
			#include "string.h"
			#include "files.h"

			#define MAXLINE 256

			/* ---------------------------------------------------------------------- */

			void replace(char file, char header, int n, char **lines)
			{
			FILE *fpr = fopen(file,"r");
			FILE *fpw = fopen("tmp.file","w");

			char line[MAXLINE];
			while (fgets(line,MAXLINE,fpr)) {
			if (strstr(line,header)) {
			fprintf(fpw,"%s",line);
			for (int i = 0; i < n; i++) {
			fgets(line,MAXLINE,fpr);
			fprintf(fpw,"%s",lines[i]);
			}
			} else fprintf(fpw,"%s",line);
			}

			fclose(fpr);
			fclose(fpw);
			rename("tmp.file",file);
			}

			/* ---------------------------------------------------------------------- */

			char *extract(char file, char header, int n, char *lines)
			{
			FILE *fp = fopen(file,"r");

			char line[MAXLINE];
			while (fgets(line,MAXLINE,fp)) {
			if (strstr(line,header)) {
			for (int i = 0; i < n; i++) {
			fgets(line,MAXLINE,fp);
			sprintf(lines[i],"%s",line);
			}
			break;
			}
			}

			fclose(fp);
			}