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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* trim.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: nahaddac <nahaddac@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/07/16 08:18:36 by nahaddac #+# #+# */
/* Updated: 2020/10/10 08:32:41 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
#include "lexer.h"
static void st_del_space(char *str)
{
int i;
i = ft_strlen(str);
if (ft_isblank(str[i - 1]))
{
i -= 1;
while (ft_isblank(str[i]))
{
if (str[i - 1] == '\\')
break ;
i--;
}
str[i + 1] = '\0';
}
}
static size_t st_count_quote(char *str)
{
char quote_char;
size_t counter;
if (*str != '\'' && *str != '"')
return (0);
quote_char = *str;
counter = 1;
str++;
while (*str != '\0')
{
if (quote_char == '"' && *str == '\\')
str += 2;
if (*str == quote_char)
{
counter++;
*str = '\0';
break ;
}
str++;
}
return (counter);
}
static int st_del_quote(char *str)
{
size_t quote_counter;
quote_counter = st_count_quote(str);
if (quote_counter % 2 == 1)
{
errorf("unexpected EOF while looking for matching `%c'\n", str[0]);
return (2);
}
ft_memmove(str, str + 1, ft_strlen(str + 1) + 1);
return (0);
}
int lexer_trim(t_tok_lst *tokens)
{
int status;
while (tokens != NULL)
{
if (tokens->tag & (TAG_STR_DOUBLE | TAG_STR_SINGLE))
{
if ((status = st_del_quote(tokens->content)) != 0)
return (status);
if (tokens->next == NULL)
tokens->tag &= ~TAG_STICK;
}
else
{
st_del_space(tokens->content);
if (tokens->next == NULL)
tokens->tag &= ~TAG_STICK;
}
tokens = tokens->next;
}
return (0);
}
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