I´m trying to make a program that reads the words in a file,and stores each word in a position of an array. Something similar to this: i have word[2],"Hello World", Hello goes into word[1] and World into word[2]. Can i do this with fscanf?How?I tried but the only thing i get is a char in every position of the array.HELP!
Well,tha i knew how to do it.But i cant have a limit for the words or char.So,i must have something like this **text. An then store every word in *text[].Something like argv.Understand?
oh,and i have to work with a file,so there are 2 things i need to know.First,how to declare the array where the words will be stored.Second, how to write the words from the file in the array. And i have to use malloc,since there´s no limit for the number of words,lines,or what so ever.My thought is making a word_counting function and then,before writing the words in the array text,do:
text = (char *)malloc(word_counting(fp)),where fp is the file pointer.
The rest of my project is working with this array,and its quite easy.
Can u be more specific?How can i use that in this specific problem?
Did i mentioned there are no limits to the number of words,chars,lines?your program uses limits,mine cant!Dead easy to understand,dont u think?
Well,ok,im quite a begginer,so i cant understand how i´ll write words in the array.Suppose i have **text and i´ve read a word,i should do:
*text[i] = word?,text=word,*(text + i)=word,how do i do this???
And how do i associate the word with the file?
can i do text[i]=fscanf("%s", word)
There's a tutorial on this web site that shows you how to open a file and read one word from it (just use a loop to get the rest)... maybe that would help?
Ok,thnks,but can u give the link?i searched the site and found only c++ tutorials,it must be on the board or something...
Does this help:
Code:#include <stdio.h> int main(void) { FILE *fp; char word[BUFSIZ]; if ((fp = fopen("junk1.c", "r")) == NULL) { perror ("junk1.c"); return 0; } while (fscanf(fp, "%s", word) == 1) /* Buffer overflow warning! */ { puts(word); } fclose(fp); return 0; }
When all else fails, read the instructions.
If you're posting code, use code tags: [code] /* insert code here */ [/code]
Whats wrong with this code?
[CODE]#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define FORA 0
#define DENTRO 1
int conta_palavras(FILE *fp)
{
int np,estado,c;
estado=FORA;
np=0;
while((c=fgetc(fp))!= EOF)
{
if(c== ' ' || c == '\n' || c == '\t')
estado = FORA;
else
if(estado == FORA)
{
estado = DENTRO;
++np;
}
}
return np;
}
main(int argc, char *argv[])
{
FILE *fp;
char **texto=NULL;
int i=0,n=0;
char palavra[56];
fp = fopen(argv[1],"r");
if(argc != 2)
printf("Numero de argumentos invalidos\n");
else
{
if(fp == NULL)
printf("Impossivel abrir o ficheiro\n");
else
{
n=conta_palavras(fp);
texto=malloc(n);
while (fscanf(fp, "%s", palavra) == 1)
{
puts(palavra);
}
}
}
}
>Whats wrong with this code?
If you read all the characters in the file using conta_palavras, you would need to rewind(fp) afterwards to start at the beginning of the file again.
7. It is easier to write an incorrect program than understand a correct one.
40. There are two ways to write error-free programs; only the third one works.*
Thnks,already notice that,i´m trying to use an auxiliary pointer to solve the problem.I also made a few changes to the rest.
