127 lines
3.0 KiB
C
127 lines
3.0 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* expand_var.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: lderidde <lderidde@student.s19.be> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/02/07 12:58:25 by lderidde #+# #+# */
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/* Updated: 2025/02/17 09:12:39 by lderidde ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../includes/minishell.h"
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#include <readline/readline.h>
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#include <stdbool.h>
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static int get_var_len(t_ast_n *node, int j, int *i)
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{
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int len;
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int ret;
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char *str;
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len = *i + 1;
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while (node->args[j][len] && is_exvalidchar(node->args[j][len]))
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len++;
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str = ft_substr(node->args[j], *i + 1, (size_t)len - (*i + 1));
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*i = len;
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ret = ft_strlen(get_var_value(str, node->msh->env));
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ft_free(&str);
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return (ret - (len - (*i + 1)));
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}
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static char *extract_env(char *str, char **envp)
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{
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int i;
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char *var;
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char *tmp;
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i = 1;
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tmp = NULL;
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while (str[i] && is_exvalidchar(str[i]))
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i++;
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if (i > 1)
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tmp = ft_substr(str, 1, i - 1);
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var = get_var_value(tmp, envp);
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free(tmp);
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return (var);
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}
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int expand_exit(t_ast_n *node, int j, int i)
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{
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int k;
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char *new;
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char *ret;
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int len;
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k = -1;
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if (node->args[j][i + 1] && node->args[j][i + 1] == '?')
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{
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len = ft_strlen(ft_itoa(node->msh->ex_code));
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new = ft_calloc(ft_strlen(node->args[j]) + len + 1, 1);
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if (!new)
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return (0);
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ret = new;
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while (++k < i)
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*new++ = node->args[j][k];
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ft_strlcat(new, ft_itoa(node->msh->ex_code), -1);
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ft_strlcat(new, &node->args[j][i + 2], -1);
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ft_free(&node->args[j]);
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node->args[j] = ret;
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return (1);
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}
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return (0);
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}
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void expander_var(t_ast_n *nd, int j, int i)
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{
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char *new;
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char *ret;
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char *var;
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int k;
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int l;
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k = i;
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if (expand_exit(nd, j , i))
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return ;
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new = ft_calloc(ft_strlen(nd->args[j]) + get_var_len(nd, j, &k), 1);
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if (!new)
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return ;
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ret = new;
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l = -1;
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while (++l < i)
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*new++ = nd->args[j][l];
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var = extract_env(&nd->args[j][i], nd->msh->env);
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ft_strlcat(new, var, -1);
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ft_strlcat(new, &nd->args[j][k], -1);
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ft_free(&nd->args[j]);
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nd->args[j] = ret;
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}
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int expand_var(t_ast_n *node, int j)
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{
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int i;
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bool in_squote;
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bool in_dquote;
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int ret;
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in_squote = false;
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in_dquote = false;
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i = 0;
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ret = 0;
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while (node->args[j][i])
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{
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if (node->args[j][i] == '"' && !in_squote)
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in_dquote = !in_dquote;
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else if (node->args[j][i] == '\'' && !in_dquote)
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in_squote = !in_squote;
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else if (node->args[j][i] == '$' && !in_squote)
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{
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ret = 1;
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expander_var(node, j, i);
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}
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i++;
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}
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return (ret);
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}
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