#include "lexer.h"

enum e_token_tag                ret_token_sep_redir_append(char *input, int i)
{
    if (input[i + 1] ==  '>')
        return(TAG_REDIR_APPEND);
    return (TAG_REDIR_OUT);

}

enum e_token_tag                ret_token(char *input, int  i)
{
    if (input[i] == ';')
        return(TAG_AND);
    if (input[i] == '&')
        return(TAG_END);
    if (input[i]  == '|' && input[i + 1] == '|')
        return(TAG_OR);
    if(input[i]  == '|')
        return(TAG_PIPE);
    if (input[i] == '>')
        return(ret_token_sep_redir_append(input,i));
    if (input[i] == '<')
        return(TAG_REDIR_IN);
    if (input[i] ==  '(')
        return(TAG_PARENT_OPEN);
    if (input[i] == ')')
        return(TAG_PARENT_CLOSE);
    return(0);

}

int                 	lexer_sep(char input)
{
    char            *sep;
    int             i;

    i = 0;
    sep = ";&|><()";
    while(sep[i] != '\0')
    {
        if(sep[i] == input)
            return(1);
        i++;
    }
    return (0);
}

int             		lexe_space(char *input)
{
    int i;

    i=0;
    while(input[i] == ' ')
        i++;
    return(i);
}

static int             lex_verif_simple_cote(char *input, int i)
{
    i++;
    while(input[i] != '\0')
    {
        ++i;
        if(input[i] == '\'')
            break;
    }
    if (input[i + 1] == ' ')
        while(input[i + 1] == ' ')
            i++;
    return(i + 1);
}

int             		lexer_verif_entre_cote(char *input, int i)
{
    if(input[i] == '\'')
        return(lex_verif_simple_cote(input, i));
    i++;
    while(input[i] != '"' && (input[i] != '\0'))
        ++i;
    if (input[i + 1] == ' ')
        while(input[i + 1] == ' ')
            i++;
    return(i + 1);
}