42-archive/42sh/src/lexer/lexer_bquote.c

54 lines
1.8 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* lexer_bquote.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/02/09 22:03:48 by jhalford #+# #+# */
/* Updated: 2017/03/03 16:48:07 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "lexer.h"
int lexer_bquote(t_list **alst, t_lexer *lexer)
{
t_token *token;
int top_state;
token = (*alst)->content;
token->type = TK_WORD;
if (lexer->state == DQUOTE_BQUOTE)
token_append(token, lexer, 1, 0);
else
token_append(token, lexer, 0, 0);
if (lexer->str[lexer->pos] == '`')
{
lexer->pos++;
if (!(lexer->stack && (*(int*)lexer->stack->content == BQUOTE
|| *(int*)lexer->stack->content == DQUOTE_BQUOTE)))
{
push(&lexer->stack, lexer->state);
return (lexer_lex(alst, lexer));
}
top_state = pop(&lexer->stack);
lexer->state = top_state == DQUOTE_BQUOTE ? DQUOTE : DEFAULT;
return (lexer_lex(alst, lexer));
}
if (lexer->str[lexer->pos] == '\\')
{
lexer->pos++;
if (lexer->str[lexer->pos] == 0)
{
push(&lexer->stack, BACKSLASH);
return (0);
}
else
token_append(token, lexer, 1, 1);
lexer->pos++;
return (lexer_lex(alst,lexer));
}
lexer->pos++;
return (lexer_lex(alst, lexer));
}