Thread: unexpected ( unwanted ) output in a file

hi, again. I have another problem, this time while writing in a file the lines of another program.

a certain file .h , which will be told to open by a file .c ( first argument ),
and, from that file .h , i will copy each line into another file .txt ( second argument )

if the file .h (mentioned in .c [if #incluir "-----.h" is in it] has the following content:

Code:

blabla
bleble

the output in the .txt file, where i will keep the copy of the lines,will be something like:

Code:

blabla

bleble

this is my program:

Code:

#include <stdio.h>
#include <string.h>
#define MAXLINE 1024
int main(int argc, char * argv[])
{
  int j,k;
  char *incluir="#incluir";
  char line[MAXLINE];
  char line2[MAXLINE];
  FILE *res;
  FILE *h;
  FILE *fp;
  fp=fopen(argv[1],"r");
  res=fopen(argv[2],"w+");
  printf(" My first argument was %s\n", argv[1]);
  printf(" My second argument was %s\n",argv[2]);
  
  if(fp==NULL) /* if it cant open */
    printf("File cant open %s\n",argv[1]); 
  else
    { /* if it can */
      printf("File %s successfully opened !!! \n",argv[1]); 
      
      
      while(fgets(line, MAXLINE , fp)) /* copies the first line */
	{
	  printf("1st while loop, line copied from argv[1]\n"); /* making sure it enters the loop */
	  if(strstr(line,incluir)!= 0) /* looks for "#incluir" in the line */ 
	    {
	      printf("COOL it exists\n");
	      
	      /* in order to copy the name of the file i must first 
		 know until where i will copy,
	         the name is between '"' ( "--------.h" ) */
	      j=0;
	      while( line[j++]!='\"');
	      /* now int j has the position of where 
		 the first ' " ' is */
	      
	      
	      /* the file *.c has in it -> #incluir "------.h" <-
		 the first ' " ', occurs at the position j,
		 but i only need the name, so all it is before
		 i can shift to the left, therefor... */
	      
	      for(k=0; k<=MAXLINE-j; k++, j++)
		line[k]=line[j];
	      j=0;
	      while( line[j++]!='\"');
	      /* 2nd occurence of '"' */
	      
	      line[j-1]='\0';
	      /* the element before the last one,
		 should be '\0', in order to make it
		 a string, but i also need to
		 get rid of '"', so i placed '\0'
		 before the '"'   */

	      printf("%s \n", line);
	      /* debugging purposes */
	      h=fopen(line, "r");
	      if(h!=NULL)
		printf("file %s successfully opened\n", line);
	      while( fgets(line2, MAXLINE, h))
		{
		  printf("%s\n",line2);
		  fprintf(res,"%s\n",line2); /* write the line in the h file, to the res file */
		  printf(" While loop working...\n");
		}
	    } 
	  else
	    {
	      printf("%s\n", line); /* for debugging purposes */
	      printf("%s\n", incluir);
	      printf("OOPS it doesn't\n"); 
	    }
	}
    }
  return 0;
}

although i know the problem is in this loop

Code:

while( fgets(line2, MAXLINE, h))
		{
		  printf("%s\n",line2);
		  fprintf(res,"%s\n",line2); /* write the line in the h file, to the res file */
		  printf(" While loop working...\n");
		}

When i copy the last line, fgets doesnt copy '\n', and i need that, any advice on how to get over it?

*blushes*, i really am a noob at this, thanks for pointing that out.