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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* tokenizer.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: chuhlig <chuhlig@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/06/28 20:55:50 by chuhlig #+# #+# */
/* Updated: 2025/01/14 15:58:41 by chuhlig ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
#include "token.h"
t_token *reverse_token_list(t_token *head)
{
t_token *prev;
t_token *current;
t_token *next;
prev = NULL;
current = head;
next = NULL;
while (current != NULL)
{
next = current->previous;
current->next = prev;
current->previous = next;
prev = current;
current = next;
}
return (prev);
}
void print_token(t_token *token)
{
if (DEBUG)
{
if (token->type == STRING_TOKEN)
{
printf("STRING_TOKEN: %s\n", token->content.string);
}
else if (token->type == REDIR_TOKEN)
{
printf("REDIR_TOKEN: %d\n", token->content.redir_type);
}
else if (token->type == PIPE_TOKEN)
{
printf("PIPE_TOKEN\n");
}
else if (token->type == NEWLINE_TOKEN)
{
printf("NEWLINE_TOKEN\n");
}
}
}
void snap_string_token(char *string, int start_of_string, int i,
t_token **token_list)
{
char *line;
int len;
len = i - start_of_string + 1;
if (len > 0)
{
line = (char *)malloc(len + 1);
if (!line)
{
exit(EXIT_FAILURE);
}
ft_strncpy(line, string + start_of_string, len);
line[len] = '\0';
while (*line == ' ' || *line == '\t')
line++;
if (*line != '\0')
{
*token_list = new_str_token(line, *token_list, NULL);
print_token(*token_list);
}
}
}
void handle_special_chars(char *s, int *i, int *start, t_token **token_list)
{
snap_string_token(s, *start, *i - 1, token_list);
if (s[*i] == '<' && s[*i + 1] == '<')
*token_list = new_redir_token(INPUT_LIMITER, *token_list, NULL);
else if (s[*i] == '>' && s[*i + 1] == '>')
*token_list = new_redir_token(OUTPUT_APPEND, *token_list, NULL);
else if (s[*i] == '<')
*token_list = new_redir_token(INPUT_FILE, *token_list, NULL);
else if (s[*i] == '>')
*token_list = new_redir_token(OUTPUT_OVERRIDE, *token_list, NULL);
else if (s[*i] == '|')
*token_list = new_token(PIPE_TOKEN, *token_list, NULL);
else if (s[*i] == '\n')
*token_list = new_token(NEWLINE_TOKEN, *token_list, NULL);
if (s[*i] == '<' && s[*i + 1] == '<')
(*i)++;
if (s[*i] == '>' && s[*i + 1] == '>')
(*i)++;
*start = *i + 1;
}
void tokenizer(char *s, t_token **token_list, char quote_check)
{
int pos;
int i;
int f;
pos = 0;
i = -1;
f = 0;
while (s[++i])
{
if (!f && ft_strchr("|<>\n", s[i]))
handle_special_chars(s, &i, &pos, token_list);
else if (f && s[i] == quote_check)
f = 0;
else if (!f && ft_strchr("\'\"", s[i]))
{
f = 1;
quote_check = s[i];
}
if ((!f && (ft_isspace(s[i + 1]))) || i == ft_strlen(s) - 1)
{
snap_string_token(s, pos, i, token_list);
pos = i + 1;
}
}
*token_list = reverse_token_list(*token_list);
}
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