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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* format_string.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: chuhlig <chuhlig@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/12/17 19:30:11 by chuhlig #+# #+# */
/* Updated: 2025/01/22 14:31:29 by chuhlig ### ########.fr */
/* */
/* ************************************************************************** */
#include "get_next_line.h"
#include "libft.h"
#include "minishell.h"
void append_var_exit_code(char **dst, t_env *env)
{
char *exit_code;
char *result;
exit_code = env_get(env, "?");
if (exit_code)
{
result = ft_strjoin(*dst, exit_code);
free(*dst);
*dst = result;
}
}
static void append_slice(char **dst, char *src, int start, int end)
{
char *result;
int len;
int i;
if (*dst != NULL)
len = ft_strlen(*dst);
else
len = 0;
result = malloc(len + (end - start) + 1);
if (!result)
return ;
ft_strncpy(result, *dst, len);
i = 0;
while (start + i < end)
{
result[len + i] = src[start + i];
i++;
}
result[len + i] = '\0';
if (*dst != NULL)
free(*dst);
*dst = result;
// free(src);
// src = *dst;
}
static void append_var(char **dst, char *src, int *pos, t_env *env)
{
int i;
char *var;
char *value;
char *result;
i = 0;
*pos += 1;
while (ft_isalnum(src[*pos + i]) || src[*pos + i] == '_')
i++;
if (i == 0)
return ;
var = ft_substr(src, *pos, i);
value = env_get(env, var);
if (value)
{
result = ft_strjoin(*dst, value);
free(*dst);
*dst = result;
}
*pos += i;
free(var);
}
static void handle_dollar_sign(char **result, char *str, int *pos, t_env *env)
{
if (str[*pos + 1] == '?')
{
append_var_exit_code(result, env);
*pos += 2;
}
else if (ft_isalnum(str[*pos + 1]) || str[*pos + 1] == '_')
append_var(result, str, pos, env);
else
{
append_slice(result, str, *pos, *pos + 1);
(*pos)++;
}
}
char *format_string(char *str, t_env *env, int is_literal)
{
char *result;
int pos;
int start;
pos = 0;
start = 0;
result = NULL;
if (!str)
return (NULL);
while (str[pos])
{
if (str[pos] == '\'' || (str[pos] == '\"' && !is_literal)
|| (str[pos] == '$' && !is_literal))
{
append_slice(&result, str, start, pos);
if (str[pos] == '$')
handle_dollar_sign(&result, str, &pos, env);
else
is_literal ^= (str[pos++] == '\'');
start = pos;
continue ;
}
pos++;
}
return (append_slice(&result, str, start, pos), result);
}
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