42-archive/42sh/src/lexer/lexer_lex.c
2017-03-08 15:53:10 +01:00

64 lines
1.8 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* lexer_lex.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/02/09 17:08:51 by jhalford #+# #+# */
/* Updated: 2017/03/08 15:51:39 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
int (*g_lexer[])(t_list **alst, t_lexer *lexer) =
{
&lexer_default,
&lexer_paren,
&lexer_heredoc,
&lexer_newline,
&lexer_delim,
&lexer_sep,
&lexer_word,
&lexer_number,
&lexer_less,
&lexer_great,
&lexer_lessand,
&lexer_greatand,
&lexer_quote,
&lexer_dquote,
&lexer_bquote,
&lexer_bquote,
&lexer_backslash,
&lexer_curly_braces,
&lexer_assignement_word,
&lexer_end,
};
int ft_is_delim(char c)
{
return (c == ' ' || c == '\t');
}
int ft_is_delim_list(char c)
{
return (c == ';' || c == '\n' || c == '&');
}
int lexer_lex(t_list **alst, t_lexer *lexer)
{
t_token *token;
if (lexer->str[lexer->pos] == 0
|| (lexer->str[lexer->pos] == '#'
&& lexer->state != QUOTE
&& lexer->state != DQUOTE))
return (lexer_end(alst, lexer));
if (!*alst)
{
token = token_init();
*alst = ft_lstnew(token, sizeof(*token));
}
return ((*g_lexer[lexer->state])(alst, lexer));
}