122 lines
3.6 KiB
C
122 lines
3.6 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* lexer.h :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2016/12/01 12:15:50 by jhalford #+# #+# */
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/* Updated: 2017/02/10 00:33:36 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#ifndef LEXER_H
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# define LEXER_H
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# include "minishell.h"
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# include "libft.h"
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# include "types.h"
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# define TK_LESS (1 << 0)
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# define TK_GREAT (1 << 1)
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# define TK_DLESS (1 << 2)
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# define TK_DGREAT (1 << 3)
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# define TK_LESSAND (1 << 4)
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# define TK_GREATAND (1 << 5)
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# define TK_SEMI (1 << 6)
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# define TK_PIPE (1 << 7)
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# define TK_AND_IF (1 << 8)
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# define TK_OR_IF (1 << 9)
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# define TK_AMP (1 << 10)
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# define TK_PAREN_OPEN (1 << 11)
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# define TK_PAREN_CLOSE (1 << 12)
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# define TK_BQUOTE (1 << 13)
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# define TK_N_WORD (1 << 14)
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# define TK_Q_WORD (1 << 15)
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# define TK_DQ_WORD (1 << 16)
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# define TK_COMMAND (1 << 17)
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# define TK_SUBSHELL (1 << 18)
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# define TK_NEWLINE (1 << 19)
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# define TK_WORD (TK_N_WORD | TK_Q_WORD | TK_DQ_WORD)
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# define TK_REDIR (0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20)
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# define TK_NON_FREEABLE (TK_PAREN_OPEN | TK_PAREN_CLOSE | TK_BQUOTE)
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enum e_lexstate
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{
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DEFAULT,
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NEWLINE,
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DELIM,
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SEP,
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WORD,
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NUMBER,
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GREAT,
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LESS,
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GREATAND,
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LESSAND,
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QUOTE,
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DQUOTE,
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BQUOTE,
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BACKSLASH,
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SUBSHELL,
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COMMENT,
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};
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struct s_token
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{
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t_type type;
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char *data;
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unsigned char *esc;
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unsigned char *esc2;
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int size;
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};
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struct s_lexer
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{
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char *str;
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int pos;
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t_lexstate state;
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t_list *stack;
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};
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extern int (*g_lexer[])(t_list **alst, t_lexer *lexer);
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int ft_post_tokenize(t_list **alst, char **str);
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t_token *token_init();
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int token_append(t_token *token, t_lexer *lexer,
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short int esc, short int esc2);
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void token_free(void *data, size_t size);
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int token_cmp_type(t_token *token, t_type *ref);
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void token_print(t_list *lst);
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void token_expand_var(t_token *token);
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int reduce_parens(t_list **alst, char *str);
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int reduce_bquotes(t_list **alst, char **str);
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char *command_getoutput(char *command);
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int ft_is_delim(char c);
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char *stack_to_prompt(t_list *stack);
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t_lexstate get_state_global(t_lexer *lexer);
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t_lexstate get_state_redir(t_lexer *lexer);
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int lexer_lex(t_list **alst, t_lexer *lexer);
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int lexer_default(t_list **alst, t_lexer *lexer);
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int lexer_newline(t_list **alst, t_lexer *lexer);
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int lexer_delim(t_list **alst, t_lexer *lexer);
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int lexer_sep(t_list **alst, t_lexer *lexer);
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int lexer_word(t_list **alst, t_lexer *lexer);
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int lexer_number(t_list **alst, t_lexer *lexer);
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int lexer_less(t_list **alst, t_lexer *lexer);
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int lexer_great(t_list **alst, t_lexer *lexer);
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int lexer_lessand(t_list **alst, t_lexer *lexer);
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int lexer_greatand(t_list **alst, t_lexer *lexer);
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int lexer_quote(t_list **alst, t_lexer *lexer);
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int lexer_dquote(t_list **alst, t_lexer *lexer);
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int lexer_bquote(t_list **alst, t_lexer *lexer);
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int lexer_backslash(t_list **alst, t_lexer *lexer);
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int lexer_subshell(t_list **alst, t_lexer *lexer);
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int lexer_comment(t_list **alst, t_lexer *lexer);
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#endif
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