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#include <cstdio>
#include <cstring>
#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);
}
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