93 lines
2.2 KiB
C
93 lines
2.2 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* expand_tilde.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 12:56:32 by lderidde #+# #+# */
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/* Updated: 2025/02/08 13:15:52 by lderidde ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../includes/minishell.h"
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static int get_new_len(t_ast_n *node, int j)
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{
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int i;
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int len;
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i = -1;
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len = ft_strlen(node->args[j]);
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while (node->args[j][++i])
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{
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if (node->args[j][i] == '~')
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{
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len += ft_strlen(get_var_value("HOME", node->msh->env)) - 1;
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}
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}
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return (len);
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}
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size_t ft_astrlcat(char *dst, const char *src, size_t dstsize)
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{
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size_t dst_len;
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size_t src_len;
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size_t i;
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if (!dst || !src)
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return (0);
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dst_len = ft_strlen(dst);
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src_len = ft_strlen(src);
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if (dstsize <= dst_len)
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return (dstsize + src_len);
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i = -1;
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while (src[++i] && (dst_len + i) < (dstsize - 1))
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dst[dst_len + i] = src[i];
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dst[dst_len + i] = '\0';
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return (dst_len + src_len);
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}
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void expander_tilde(t_ast_n *node, int j)
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{
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int i;
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int len;
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int save;
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char *new;
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i = -1;
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len = get_new_len(node, j);
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new = ft_calloc(len + 1, sizeof(char));
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if (!new)
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return ;
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save = len;
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len = 0;
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while (++i < save)
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{
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if (node->args[j][len] != '~')
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new[i] = node->args[j][len++];
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else
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{
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ft_astrlcat(new, get_var_value("HOME", node->msh->env), -1);
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i = ft_strlen(new) - 1;
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len++;
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}
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}
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ft_free(&node->args[j]);
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node->args[j] = new;
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}
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int expand_tilde(t_ast_n *node, int j)
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{
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int i;
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i = 0;
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while (node->args[j][i])
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{
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if (node->args[j][i] == '~')
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return (expander_tilde(node, j), 1);
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i++;
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}
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return (0);
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}
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