How to take a string with spaces from a file in C

Question

main()
{
    FILE *fin;
    char line[50];
    char exp[SIZE];
    fin=fopen("prefix.txt","r");

    if(fin==NULL)
    {
         printf("\nFile Cannot be Opened\n");
    }
    else
    {
         printf("\nfile opened\n");

         while(fgets(line, sizeof(line), fin)!=NULL)
         {
              sscanf(line, "%s", exp);
              delete_spaces(exp);
              convert(exp);
         }
    }
    fclose(fin);
    getch();
}

My file is containing string with spaces and when I am reading a line from it, the line is containing only first word and ignoring string after space.

DON'T USE `while(!feof(fin))` @Jayesh please read http://stackoverflow.com/questions/5431941/while-feof-file-is-always-wrong — avmohan, Mar 22 '14 at 06:12
The `fclose()` should be in the `else` clause. You've got the line (well, if the line is short enough — use a bigger size, like 4096) in `line`; it will have words with blanks separating them. What else are you looking for? — Jonathan Leffler, Mar 22 '14 at 06:42

score 1 · Accepted Answer · answered Mar 22 '14 at 06:27

Yeah, because sscanf() (along with all the scanf() functions) uses the %s specifier to read a string up to the first whitespace character. So you explicitly truncate your line with that one call. It seems to me that you want to process the entire line, so that sscanf is just useless -- remove it.

score 0 · Answer 2 · answered Mar 22 '14 at 08:08

0

you need to use the EOF statement to read the file entirely , e.g in your case :

while ((line = getc(fin)) != EOF)

answered Mar 22 '14 at 08:08

Rage91

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How to take a string with spaces from a file in C

2 Answers2