62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* echo.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: erey-bet <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/02/17 13:09:08 by erey-bet #+# #+# */
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/* Updated: 2023/03/30 13:55:40 by erey-bet ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "./builtins_private.h"
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int is_space(char c)
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{
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return (c == ' ' || c == '\f' || c == '\v' || c == '\t'
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|| c == '\r' || c == '\n');
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}
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int check_argument(char *str, int *check_backslash_n)
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{
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int i;
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i = -1;
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while (str[++i])
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if (str[i] != '-' && str[i] != 'n')
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return (1);
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if (ft_strnstr(str, "n", ft_strlen(str)) && str[0] == '-')
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*check_backslash_n = 1;
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else
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return (1);
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return (0);
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}
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int echo(int fd, char **strs)
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{
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int check_backslash_n;
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int check_start_write;
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int i;
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check_backslash_n = 0;
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check_start_write = 0;
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i = -1;
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while (strs[++i])
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{
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while (is_space(*strs[i]))
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strs[i]++;
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if (check_start_write == 1
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|| check_argument(strs[i], &check_backslash_n))
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{
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check_start_write = 1;
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ft_putstr_fd(strs[i], fd);
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if (strs[i + 1] != NULL)
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write(fd, " ", 1);
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}
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}
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if (!check_backslash_n)
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write(fd, "\n", 1);
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return (0);
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}
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