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Assignment name : repeat_alpha
Expected files : repeat_alpha.c
Allowed functions: write
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Write a program called repeat_alpha that takes a string and display it
repeating each alphabetical character as many times as its alphabetical index,
followed by a newline.
‘a’ becomes ‘a’, ‘b’ becomes ‘bb’, ‘e’ becomes ‘eeeee’, etc…
Case remains unchanged.
If the number of arguments is not 1, just display a newline.
Examples:
$>./repeat_alpha "abc"
abbccc
$>./repeat_alpha "Alex." | cat -e
Alllllllllllleeeeexxxxxxxxxxxxxxxxxxxxxxxx.$
$>./repeat_alpha ‘abacadaba 42!’ | cat -e
abbacccaddddabba 42!$
$>./repeat_alpha | cat -e
$
$>
$>./repeat_alpha "" | cat -e
$
$>
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#include <unistd.h>
void ft_putchar_n(char c, int i)
{
while (i > 0)
{
write(1, &c, 1);
–i;
}
}
void repeat_alpha(char *str)
{
while (*str != ‘\0’)
{
if (*str >= ‘a’ && *str <= ‘z’)
ft_putchar_n(*str, *str + 1 – ‘a’);
else if (*str >= ‘A’ && *str <= ‘Z’)
ft_putchar_n(*str, *str + 1 – ‘A’);
else
write(1, str, 1);
++str;
}
}
int main(int argc, char **argv)
{
if (argc == 2)
repeat_alpha(argv[1]);
write(1, "\n", 1);
return (0);
}
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