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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* lexer.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: nahaddac <nahaddac@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/07/16 08:18:25 by nahaddac #+# #+# */
/* Updated: 2020/08/27 09:56:46 by charles ### ########.fr */
/* */
/* ************************************************************************** */
#include "lexer.h"
int len_until_sep(char *input)
{
int i;
i = -1;
while(input[++i])
{
if (input[i] == '\\')
{
i +=2;
if (input[i] == '\\')
i += len_until_sep(&input[i]);
}
if (lexer_sep(input[i]))
return(i);
if (input[i] == '\'' || input[i] == '"')
return(i);
if (input[i] == ' ')
{
while(input[++i] == ' ')
;
return (i);
}
}
return(i);
}
int check_input(char *input)
{
int i;
int op;
i = 0;
op = 1;
if (input[i] == '\\' && lexer_sep(input[i + 1]))
i += 2;
if (input[i] == '(' || input[i] == ')')
{
i +=1;
if(input[i] == ' ')
while(input[i++] != ' ')
;
return (i);
}
if (lexer_sep(input[i]))
{
if (input[i] == ';')
return (i += lexer_space(&input[i + 1]) + 1);
while(input[i] == input[i + 1] && op < 2)
{
i++;
op++;
}
i += lexer_space(&input[i + 1]);
return (i + 1);
}
if (input[i] == 39 || input[i] == '"')
return(lexer_check_between_quote(input, i));
if (input[i] == ' ')
{
while(input[++i] == ' ')
;
return (i);
}
return(len_until_sep(&input[i]));
}
int check_input_out(char *input)
{
int i;
int j;
i = 0;
while(input[i] != '\0')
{
j = 0;
j += len_until_sep(&input[i]);
if (j != 0)
return(j);
i += j;
j = check_input(&input[i]);
return(j);
}
return(0);
}
enum e_tok token_check_stick(t_token *lst_token)
{
int i;
i = ft_strlen(lst_token->content);
if (i > 0)
if (lst_token->content[i - 1] == ' ')
return(lst_token->tag);
return(lst_token->tag | TAG_STICK);
}
enum e_tok token_str_or_quote(t_token *lst_token)
{
int i;
i = 0;
while(lst_token->content[i] != '\0')
{
if(lst_token->content[i] == '\'')
{
lst_token->tag = TAG_STR_SINGLE;
return(token_check_stick(lst_token));
}
if(lst_token->content[i] == '"')
{
lst_token->tag = TAG_STR_DOUBLE;
return(token_check_stick(lst_token));
}
else
{
lst_token->tag = TAG_STR;
return(token_check_stick(lst_token));
}
i++;
}
return(0);
}
t_token *push_token_enum(t_token *lst_token)
{
enum e_tok tk;
tk = ret_token(lst_token->content, 0);
if (tk == 0)
lst_token->tag = token_str_or_quote(lst_token);
else
lst_token->tag = tk;
return (lst_token);
}
static t_ftlst *create_token_list(char *input, t_ftlst **lst)
{
t_token *lst_token;
t_ftlst *new;
int i;
int j;
i = 0;
while (i < (int)ft_strlen(input))
{
j = 0;
j += check_input(&input[i]);
lst_token = token_new_until(0, input + i, j);
lst_token = push_token_enum(lst_token);
if (lst_token->content[0] != ' ')
{
new = ft_lstnew(lst_token);
ft_lstpush_back(lst, new);
}
i += j;
}
return (*lst);
}
t_ftlst *lexer(char *input)
{
t_ftlst *lst;
if (!input)
return (NULL);
lst = NULL;
lst = create_token_list(input, &lst);
lst = lexer_trim_out(lst);
return (lst);
}
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