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split_cmd.c
136 lines (125 loc) · 3.04 KB
/
split_cmd.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* split_cmd.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: mgrimald <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2015/05/08 14:07:41 by mgrimald #+# #+# */
/* Updated: 2015/05/17 14:27:06 by mgrimald ### ########.fr */
/* */
/* ************************************************************************** */
#include "sh1.h"
void guillemet(char *str, char *ret, int *j, char c)
{
int i;
i = ft_strlen(ret) - 1;
while (str[*j] != '\0' && str[++(*j)] != c && str[*j] != '\0')
{
if (str[*j] == 92)
(*j)++;
ret[++i] = str[*j];
}
if (str[*j] != '\0')
(*j)++;
}
char *gestion_dollar(char *ret, char *str, int *j, int space)
{
int k;
char *tmp;
char *aut;
char *tip;
(*j)++;
k = 0;
while (ft_isalnum(str[*j + k]) || str[*j + k] == '_')
k++;
if (k == 0)
{
ret[ft_strlen(ret)] = '$';
return (ret);
}
tmp = ft_strndup(str + *j, k - 1);
tip = get_str_env(tmp);
(void)space;
aut = ft_strnew(ft_strlen(ret) + ft_strlen(str + *j) + ft_strlen(tip) + 3);
aut = ft_strcpy(aut, ret);
aut = ft_strcat(aut, tip);
ft_strdel(&ret);
ft_strdel(&tmp);
*j = *j + k;
return (aut);
}
char *gestion_tilde(char *str, int *j)
{
char *ret;
char *tmp;
ret = NULL;
if (str[*j] != '\0' && str[*j] == '~')
{
tmp = get_str_env("HOME");
if (tmp == NULL || *tmp == '\0')
{
ft_putendl("variable d'environment \"HOME\" not set");
return (NULL);
}
ret = ft_strnew(ft_strlen(tmp) + ft_strlen(str + *j) + 1);
ret = ft_strcpy(ret, tmp);
(*j)++;
}
else if (str[*j] != '\0')
{
ret = ft_strnew(ft_strlen(str + *j) + 2);
}
return (ret);
}
char *ft_fill_tab(char *str, int *j, int space)
{
char *ret;
ret = gestion_tilde(str, j);
if (ret == NULL)
*j = -1;
while (ret && str[*j] != '\0' && (space == 1 || ft_isspace(str[*j]) == 0))
{
if (str[*j] == '\\')
(*j)++;
else if (str[*j] == '\'' || str[*j] == '"')
{
guillemet(str, ret, j, str[*j]);
continue ;
}
else if (str[*j] == '$')
{
ret = gestion_dollar(ret, str, j, space);
continue ;
}
if (str[*j] != '\0')
ret[ft_strlen(ret)] = str[(*j)++];
}
return (ret);
}
char **split_cmd(char *str)
{
char **tab;
int j;
char *tmp;
char **t;
tab = NULL;
j = 0;
while (j >= 0 && str[j] != '\0')
{
while (str[j] != '\0' && ft_isspace(str[j]))
j++;
if (str[j] == '\0')
break ;
tmp = ft_fill_tab(str, &j, 0);
if ((t = NULL) || tmp != NULL)
t = ft_tabadd(tab, tmp);
if (tmp != NULL || j == -1)
{
free_tab(tab);
tab = t;
ft_memdel((void**)&tmp);
}
}
return (tab);
}