예제 #1
0
파일: p_swap.c 프로젝트: MarcDeletang/42_1
int			p_swap(l_lst **la, l_lst **lb, char c)
{
	if (*lb && c == 'a')
		p_switch(la, lb);
	else if (*la && c == 'b')
	{
		if (*lb)
			p_switch(lb, la);
		else
		{
			(*lb)->start = (*la)->start;
			(*la)->start = (*la)->start->next;
			(*la)->start->prev = NULL;
		}
	}
	write(1, "p", 1);
	write(1, &c, 1);
	write(1, " ", 1);
	return (0);
}
예제 #2
0
파일: deparse.c 프로젝트: att/ast
static_fn void p_switch(const struct regnod *reg) {
    if (level > 1) sfnputc(outfile, '\t', level - 1);
    p_arg(reg->regptr, ')', PRE);
    begin_line = 0;
    sfputc(outfile, '\t');
    if (reg->regcom) p_tree(reg->regcom, 0);
    level++;
    if (reg->regflag) {
        p_keyword(";&", END);
    } else {
        p_keyword(";;", END);
    }
    if (reg->regnxt) p_switch(reg->regnxt);
}
예제 #3
0
파일: deparse.c 프로젝트: att/ast
// Print script corresponding to shell tree <t>.
static_fn void p_tree(const Shnode_t *t, int tflags) {
    char *cp = NULL;
    int save = end_line;
    int needbrace = (tflags & NEED_BRACE);
    int bracket = 0;

    tflags &= ~NEED_BRACE;
    if (tflags & NO_NEWLINE) {
        end_line = ' ';
    } else {
        end_line = '\n';
    }
    int cmd_type = t->tre.tretyp & COMMSK;
    switch (cmd_type) {
        case TTIME: {
            if (t->tre.tretyp & COMSCAN) {
                p_keyword("!", BEGIN);
            } else {
                p_keyword("time", BEGIN);
            }
            if (t->par.partre) p_tree(t->par.partre, tflags);
            level--;
            break;
        }
        case TCOM: {
            if (begin_line && level > 0) sfnputc(outfile, '\t', level);
            begin_line = 0;
            p_comarg((struct comnod *)t);
            break;
        }
        case TSETIO: {
            if (t->tre.tretyp & FPCL) {
                tflags |= NEED_BRACE;
            } else {
                tflags = NO_NEWLINE | NEED_BRACE;
            }
            p_tree(t->fork.forktre, tflags);
            p_redirect(t->fork.forkio);
            break;
        }
        case TFORK: {
            if (needbrace) tflags |= NEED_BRACE;
            if (t->tre.tretyp & (FAMP | FCOOP)) {
                tflags = NEED_BRACE | NO_NEWLINE;
                end_line = ' ';
            } else if (t->fork.forkio) {
                tflags = NO_NEWLINE;
            }
            p_tree(t->fork.forktre, tflags);
            if (t->fork.forkio) p_redirect(t->fork.forkio);
            if (t->tre.tretyp & FCOOP) {
                sfputr(outfile, "|&", '\n');
                begin_line = 1;
            } else if (t->tre.tretyp & FAMP) {
                sfputr(outfile, "&", '\n');
                begin_line = 1;
            }
            break;
        }
        case TIF: {
            p_keyword("if", BEGIN);
            p_tree(t->if_.iftre, 0);
            p_keyword("then", MIDDLE);
            p_tree(t->if_.thtre, 0);
            if (t->if_.eltre) {
                p_keyword("else", MIDDLE);
                p_tree(t->if_.eltre, 0);
            }
            p_keyword("fi", END);
            break;
        }
        case TWH: {
            if (t->wh.whinc) {
                cp = "for";
            } else if (t->tre.tretyp & COMSCAN) {
                cp = "until";
            } else {
                cp = "while";
            }
            p_keyword(cp, BEGIN);
            if (t->wh.whinc) {
                struct argnod *arg = (t->wh.whtre)->ar.arexpr;
                sfprintf(outfile, "(( %s; ", forinit);
                forinit = "";
                sfputr(outfile, arg->argval, ';');
                arg = (t->wh.whinc)->arexpr;
                sfprintf(outfile, " %s))\n", arg->argval);
            } else {
                p_tree(t->wh.whtre, 0);
            }
            t = t->wh.dotre;
            p_keyword("do", MIDDLE);
            p_tree(t, 0);
            p_keyword("done", END);
            break;
        }
        case TLST: {
            Shnode_t *tr = t->lst.lstrit;
            if (tr->tre.tretyp == TWH && tr->wh.whinc && t->lst.lstlef->tre.tretyp == TARITH) {
                // Arithmetic for statement.
                struct argnod *init = (t->lst.lstlef)->ar.arexpr;
                forinit = init->argval;
                p_tree(t->lst.lstrit, tflags);
                break;
            }
            if (needbrace) p_keyword("{", BEGIN);
            p_tree(t->lst.lstlef, 0);
            if (needbrace) tflags = 0;
            p_tree(t->lst.lstrit, tflags);
            if (needbrace) p_keyword("}", END);
            break;
        }
        case TAND:
        case TORF:
        case TFIL: {
            if (cmd_type == TAND) {
                cp = "&&";
            } else if (cmd_type == TORF) {
                cp = "||";
            } else {
                cp = "|";
            }
            if (t->tre.tretyp & TTEST) {
                tflags |= NO_NEWLINE;
                if (!(tflags & NO_BRACKET)) {
                    p_keyword("[[", BEGIN);
                    tflags |= NO_BRACKET;
                    bracket = 1;
                }
            }
            p_tree(t->lst.lstlef, NEED_BRACE | NO_NEWLINE | (tflags & NO_BRACKET));
            if (tflags & FALTPIPE) {
                Shnode_t *tt = t->lst.lstrit;
                if (tt->tre.tretyp != TFIL || !(tt->lst.lstlef->tre.tretyp & FALTPIPE)) {
                    sfputc(outfile, '\n');
                    return;
                }
            }
            sfputr(outfile, cp, here_doc ? '\n' : ' ');
            if (here_doc) {
                here_body(here_doc);
                here_doc = 0;
            }
            level++;
            p_tree(t->lst.lstrit, tflags | NEED_BRACE);
            if (bracket) p_keyword("]]", END);
            level--;
            break;
        }
        case TPAR: {
            p_keyword("(", BEGIN);
            p_tree(t->par.partre, 0);
            p_keyword(")", END);
            break;
        }
        case TARITH: {
            struct argnod *ap = t->ar.arexpr;
            if (begin_line && level) sfnputc(outfile, '\t', level);
            sfprintf(outfile, "(( %s ))%c", ap->argval, end_line);
            if (!(tflags & NO_NEWLINE)) begin_line = 1;
            break;
        }
        case TFOR: {
            cp = ((t->tre.tretyp & COMSCAN) ? "select" : "for");
            p_keyword(cp, BEGIN);
            sfputr(outfile, t->for_.fornam, ' ');
            if (t->for_.forlst) {
                sfputr(outfile, "in", ' ');
                tflags = end_line;
                end_line = '\n';
                p_comarg(t->for_.forlst);
                end_line = tflags;
            } else {
                sfputc(outfile, '\n');
            }
            begin_line = 1;
            t = t->for_.fortre;
            p_keyword("do", MIDDLE);
            p_tree(t, 0);
            p_keyword("done", END);
            break;
        }
        case TSW: {
            p_keyword("case", BEGIN);
            p_arg(t->sw.swarg, ' ', 0);
            if (t->sw.swlst) {
                begin_line = 1;
                sfputr(outfile, "in", '\n');
                tflags = end_line;
                end_line = '\n';
                p_switch(t->sw.swlst);
                end_line = tflags;
            }
            p_keyword("esac", END);
            break;
        }
        case TFUN: {
            if (t->tre.tretyp & FPOSIX) {
                sfprintf(outfile, "%s", t->funct.functnam);
                p_keyword("()\n", BEGIN);
            } else {
                p_keyword("function", BEGIN);
                tflags = (t->funct.functargs ? ' ' : '\n');
                sfputr(outfile, t->funct.functnam, tflags);
                if (t->funct.functargs) {
                    tflags = end_line;
                    end_line = '\n';
                    p_comarg(t->funct.functargs);
                    end_line = tflags;
                }
            }
            begin_line = 1;
            p_keyword("{\n", MIDDLE);
            begin_line = 1;
            p_tree(t->funct.functtre, 0);
            p_keyword("}", END);
            break;
        }
        case TTST: {  // new test compound command
            if (!(tflags & NO_BRACKET)) p_keyword("[[", BEGIN);
            if ((t->tre.tretyp & TPAREN) == TPAREN) {
                p_keyword("(", BEGIN);
                p_tree(t->lst.lstlef, NO_BRACKET | NO_NEWLINE);
                p_keyword(")", END);
            } else {
                int flags = (t->tre.tretyp) >> TSHIFT;
                if (t->tre.tretyp & TNEGATE) sfputr(outfile, "!", ' ');
                if (t->tre.tretyp & TUNARY) {
                    un_op[1] = flags;
                    sfputr(outfile, un_op, ' ');
                } else {
                    cp = ((char *)(shtab_testops + (flags & 037) - 1)->sh_name);
                }
                p_arg(&(t->lst.lstlef->arg), ' ', 0);
                if (t->tre.tretyp & TBINARY) {
                    assert(cp);
                    sfputr(outfile, cp, ' ');
                    p_arg(&(t->lst.lstrit->arg), ' ', 0);
                }
            }
            if (!(tflags & NO_BRACKET)) p_keyword("]]", END);
        }
        default: { break; }
    }

    while (begin_line && here_doc) {
        here_body(here_doc);
        here_doc = 0;
    }
    end_line = save;
}