115 lines
2.5 KiB
C
115 lines
2.5 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* set_var.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2022/04/19 15:02:01 by apommier #+# #+# */
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/* Updated: 2022/04/22 13:01:30 by apommier ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../includes/minishell.h"
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char *del_char(char *str, int *index)
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{
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char *swap;
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char *swap2;
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swap = 0;
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swap = ft_strdup(str + *index + 1);
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str[*index] = 0;
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swap2 = str;
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str = ft_strjoin(str, swap);
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free(swap2);
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free(swap);
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return (str);
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}
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char *get_var(t_cmd *cmd, char *var_name)
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{
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char *line;
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char **split_line;
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int index;
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line = 0;
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if (!ft_strcmp(var_name, "?"))
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return (ft_itoa(cmd->err_var));
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index = find_it(cmd->env, var_name);
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if (index >= 0)
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{
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line = cmd->env[index];
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split_line = ft_split(line, '=');
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if (split_line[1])
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line = ft_strdup(split_line[1]);
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else
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return (0);
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free_double(split_line);
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}
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return (line);
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}
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char *change_var(t_cmd *big_cmd, char *cmd, int *index)
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{
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int i;
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char *ret;
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i = *index + 1;
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while (cmd[i] && (ft_isalnum(cmd[i]) || cmd[i] == '_'
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|| cmd[i] == '?' || cmd[i] == '$'))
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i++;
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if (i == *index + 1)
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{
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(*index)++;
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ret = ft_strdup(cmd);
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free(cmd);
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return (ret);
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}
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ret = find_var(big_cmd, cmd, i, index);
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return (ret);
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}
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char *check_quote(t_cmd *big_cmd, char *cmd, int *i)
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{
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cmd = del_char(cmd, i);
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if (cmd[*i])
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{
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while (cmd[*i] != '"')
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{
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if (cmd[*i] == '$')
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cmd = change_var(big_cmd, cmd, i);
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(*i)++;
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}
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cmd = del_char(cmd, i);
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}
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return (cmd);
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}
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char *set_var(t_cmd *big_cmd, char *cmd)
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{
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int i;
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i = 0;
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while (cmd[0] && cmd[i])
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{
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if (cmd[i] == '\'')
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{
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cmd = del_char(cmd, &i);
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if (cmd[i])
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{
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while (cmd[i] != '\'')
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i++;
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cmd = del_char(cmd, &i);
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}
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}
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else if (cmd[i] == '"')
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cmd = check_quote(big_cmd, cmd, &i);
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else if (cmd[i] == '$')
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cmd = change_var(big_cmd, cmd, &i);
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else
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i++;
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}
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return (cmd);
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}
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