int
execif(Estate state, int do_exec)
{
Wordcode end, next;
wordcode code = state->pc[-1];
int olderrexit, s = 0, run = 0;
olderrexit = noerrexit;
end = state->pc + WC_IF_SKIP(code);
noerrexit |= NOERREXIT_EXIT | NOERREXIT_RETURN;
while (state->pc < end) {
code = *state->pc++;
if (wc_code(code) != WC_IF ||
(run = (WC_IF_TYPE(code) == WC_IF_ELSE))) {
if (run)
run = 2;
break;
}
next = state->pc + WC_IF_SKIP(code);
cmdpush(s ? CS_ELIF : CS_IF);
execlist(state, 1, 0);
cmdpop();
if (!lastval) {
run = 1;
break;
}
if (retflag)
break;
s = 1;
state->pc = next;
}
if (run) {
/* we need to ignore lastval until we reach execcmd() */
if (olderrexit)
noerrexit = olderrexit;
else if (lastval)
noerrexit |= NOERREXIT_EXIT | NOERREXIT_RETURN | NOERREXIT_UNTIL_EXEC;
else
noerrexit &= ~ (NOERREXIT_EXIT | NOERREXIT_RETURN);
cmdpush(run == 2 ? CS_ELSE : (s ? CS_ELIFTHEN : CS_IFTHEN));
execlist(state, 1, do_exec);
cmdpop();
} else {
noerrexit = olderrexit;
if (!retflag)
lastval = 0;
}
state->pc = end;
this_noerrexit = 1;
return lastval;
}
int
execif(Estate state, int do_exec)
{
Wordcode end, next;
wordcode code = state->pc[-1];
int olderrexit, s = 0, run = 0;
olderrexit = noerrexit;
end = state->pc + WC_IF_SKIP(code);
if (!noerrexit)
noerrexit = 1;
while (state->pc < end) {
code = *state->pc++;
if (wc_code(code) != WC_IF ||
(run = (WC_IF_TYPE(code) == WC_IF_ELSE))) {
if (run)
run = 2;
break;
}
next = state->pc + WC_IF_SKIP(code);
cmdpush(s ? CS_ELIF : CS_IF);
execlist(state, 1, 0);
cmdpop();
if (!lastval) {
run = 1;
break;
}
if (retflag)
break;
s = 1;
state->pc = next;
}
if (run) {
/* we need to ignore lastval until we reach execcmd() */
noerrexit = olderrexit ? olderrexit : lastval ? 2 : 0;
cmdpush(run == 2 ? CS_ELSE : (s ? CS_ELIFTHEN : CS_IFTHEN));
execlist(state, 1, do_exec);
cmdpop();
} else {
noerrexit = olderrexit;
lastval = 0;
}
state->pc = end;
return lastval;
}
static void
gettext2(Estate state)
{
Tstack s, n;
int stack = 0;
wordcode code;
while (1) {
if (stack) {
if (!(s = tstack))
break;
if (s->pop) {
tstack = s->prev;
s->prev = tfree;
tfree = s;
}
code = s->code;
stack = 0;
} else {
s = NULL;
code = *state->pc++;
}
switch (wc_code(code)) {
case WC_LIST:
if (!s) {
s = tpush(code, (WC_LIST_TYPE(code) & Z_END));
stack = 0;
} else {
if (WC_LIST_TYPE(code) & Z_ASYNC) {
taddstr(" &");
if (WC_LIST_TYPE(code) & Z_DISOWN)
taddstr("|");
}
if (!(stack = (WC_LIST_TYPE(code) & Z_END))) {
if (tnewlins)
taddnl(0);
else
taddstr((WC_LIST_TYPE(code) & Z_ASYNC) ? " " : "; ");
s->code = *state->pc++;
s->pop = (WC_LIST_TYPE(s->code) & Z_END);
}
}
if (!stack && (WC_LIST_TYPE(s->code) & Z_SIMPLE))
state->pc++;
break;
case WC_SUBLIST:
if (!s) {
if (!(WC_SUBLIST_FLAGS(code) & WC_SUBLIST_SIMPLE) &&
wc_code(*state->pc) != WC_PIPE)
stack = -1;
if (WC_SUBLIST_FLAGS(code) & WC_SUBLIST_NOT)
taddstr(stack ? "!" : "! ");
if (WC_SUBLIST_FLAGS(code) & WC_SUBLIST_COPROC)
taddstr(stack ? "coproc" : "coproc ");
s = tpush(code, (WC_SUBLIST_TYPE(code) == WC_SUBLIST_END));
} else {
if (!(stack = (WC_SUBLIST_TYPE(code) == WC_SUBLIST_END))) {
taddstr((WC_SUBLIST_TYPE(code) == WC_SUBLIST_OR) ?
" || " : " && ");
s->code = *state->pc++;
s->pop = (WC_SUBLIST_TYPE(s->code) == WC_SUBLIST_END);
if (WC_SUBLIST_FLAGS(s->code) & WC_SUBLIST_NOT)
taddstr("! ");
if (WC_SUBLIST_FLAGS(s->code) & WC_SUBLIST_COPROC)
taddstr("coproc ");
}
}
if (stack < 1 && (WC_SUBLIST_FLAGS(s->code) & WC_SUBLIST_SIMPLE))
state->pc++;
break;
case WC_PIPE:
if (!s) {
tpush(code, (WC_PIPE_TYPE(code) == WC_PIPE_END));
if (WC_PIPE_TYPE(code) == WC_PIPE_MID)
state->pc++;
} else {
if (!(stack = (WC_PIPE_TYPE(code) == WC_PIPE_END))) {
taddstr(" | ");
s->code = *state->pc++;
if (!(s->pop = (WC_PIPE_TYPE(s->code) == WC_PIPE_END)))
state->pc++;
}
}
break;
case WC_REDIR:
if (!s) {
state->pc--;
n = tpush(code, 1);
n->u._redir.list = ecgetredirs(state);
} else {
getredirs(s->u._redir.list);
stack = 1;
}
break;
case WC_ASSIGN:
taddstr(ecgetstr(state, EC_NODUP, NULL));
if (WC_ASSIGN_TYPE2(code) == WC_ASSIGN_INC) taddchr('+');
taddchr('=');
if (WC_ASSIGN_TYPE(code) == WC_ASSIGN_ARRAY) {
taddchr('(');
taddlist(state, WC_ASSIGN_NUM(code));
taddstr(") ");
} else {
taddstr(ecgetstr(state, EC_NODUP, NULL));
taddchr(' ');
}
break;
case WC_SIMPLE:
taddlist(state, WC_SIMPLE_ARGC(code));
stack = 1;
break;
case WC_SUBSH:
if (!s) {
taddstr("(");
tindent++;
taddnl(1);
n = tpush(code, 1);
n->u._subsh.end = state->pc + WC_SUBSH_SKIP(code);
/* skip word only use for try/always */
state->pc++;
} else {
state->pc = s->u._subsh.end;
dec_tindent();
/* semicolon is optional here but more standard */
taddnl(0);
taddstr(")");
stack = 1;
}
break;
case WC_CURSH:
if (!s) {
taddstr("{");
tindent++;
taddnl(1);
n = tpush(code, 1);
n->u._subsh.end = state->pc + WC_CURSH_SKIP(code);
/* skip word only use for try/always */
state->pc++;
} else {
state->pc = s->u._subsh.end;
dec_tindent();
/* semicolon is optional here but more standard */
taddnl(0);
taddstr("}");
stack = 1;
}
break;
case WC_TIMED:
if (!s) {
taddstr("time");
if (WC_TIMED_TYPE(code) == WC_TIMED_PIPE) {
taddchr(' ');
tindent++;
tpush(code, 1);
} else
stack = 1;
} else {
dec_tindent();
stack = 1;
}
break;
case WC_FUNCDEF:
if (!s) {
Wordcode p = state->pc;
Wordcode end = p + WC_FUNCDEF_SKIP(code);
taddlist(state, *state->pc++);
if (tjob) {
taddstr(" () { ... }");
state->pc = end;
stack = 1;
} else {
taddstr(" () {");
tindent++;
taddnl(1);
n = tpush(code, 1);
n->u._funcdef.strs = state->strs;
n->u._funcdef.end = end;
state->strs += *state->pc;
state->pc += 3;
}
} else {
state->strs = s->u._funcdef.strs;
state->pc = s->u._funcdef.end;
dec_tindent();
taddnl(0);
taddstr("}");
stack = 1;
}
break;
case WC_FOR:
if (!s) {
taddstr("for ");
if (WC_FOR_TYPE(code) == WC_FOR_COND) {
taddstr("((");
taddstr(ecgetstr(state, EC_NODUP, NULL));
taddstr("; ");
taddstr(ecgetstr(state, EC_NODUP, NULL));
taddstr("; ");
taddstr(ecgetstr(state, EC_NODUP, NULL));
taddstr(")) do");
} else {
taddlist(state, *state->pc++);
if (WC_FOR_TYPE(code) == WC_FOR_LIST) {
taddstr(" in ");
taddlist(state, *state->pc++);
}
taddnl(0);
taddstr("do");
}
tindent++;
taddnl(0);
tpush(code, 1);
} else {
dec_tindent();
taddnl(0);
taddstr("done");
stack = 1;
}
break;
case WC_SELECT:
if (!s) {
taddstr("select ");
taddstr(ecgetstr(state, EC_NODUP, NULL));
if (WC_SELECT_TYPE(code) == WC_SELECT_LIST) {
taddstr(" in ");
taddlist(state, *state->pc++);
}
tindent++;
taddnl(0);
tpush(code, 1);
} else {
dec_tindent();
taddnl(0);
taddstr("done");
stack = 1;
}
break;
case WC_WHILE:
if (!s) {
taddstr(WC_WHILE_TYPE(code) == WC_WHILE_UNTIL ?
"until " : "while ");
tindent++;
tpush(code, 0);
} else if (!s->pop) {
dec_tindent();
taddnl(0);
taddstr("do");
tindent++;
taddnl(0);
s->pop = 1;
} else {
dec_tindent();
taddnl(0);
taddstr("done");
stack = 1;
}
break;
case WC_REPEAT:
if (!s) {
taddstr("repeat ");
taddstr(ecgetstr(state, EC_NODUP, NULL));
taddnl(0);
taddstr("do");
tindent++;
taddnl(0);
tpush(code, 1);
} else {
dec_tindent();
taddnl(0);
taddstr("done");
stack = 1;
}
break;
case WC_CASE:
if (!s) {
Wordcode end = state->pc + WC_CASE_SKIP(code);
taddstr("case ");
taddstr(ecgetstr(state, EC_NODUP, NULL));
taddstr(" in");
if (state->pc >= end) {
if (tnewlins)
taddnl(0);
else
taddchr(' ');
taddstr("esac");
stack = 1;
} else {
tindent++;
if (tnewlins)
taddnl(0);
else
taddchr(' ');
taddstr("(");
code = *state->pc++;
taddstr(ecgetstr(state, EC_NODUP, NULL));
state->pc++;
taddstr(") ");
tindent++;
n = tpush(code, 0);
n->u._case.end = end;
n->pop = (state->pc - 2 + WC_CASE_SKIP(code) >= end);
}
} else if (state->pc < s->u._case.end) {
dec_tindent();
switch (WC_CASE_TYPE(code)) {
case WC_CASE_OR:
taddstr(" ;;");
break;
case WC_CASE_AND:
taddstr(";&");
break;
default:
taddstr(";|");
break;
}
if (tnewlins)
taddnl(0);
else
taddchr(' ');
taddstr("(");
code = *state->pc++;
taddstr(ecgetstr(state, EC_NODUP, NULL));
state->pc++;
taddstr(") ");
tindent++;
s->code = code;
s->pop = ((state->pc - 2 + WC_CASE_SKIP(code)) >=
s->u._case.end);
} else {
dec_tindent();
switch (WC_CASE_TYPE(code)) {
case WC_CASE_OR:
taddstr(" ;;");
break;
case WC_CASE_AND:
taddstr(";&");
break;
default:
taddstr(";|");
break;
}
dec_tindent();
if (tnewlins)
taddnl(0);
else
taddchr(' ');
taddstr("esac");
stack = 1;
}
break;
case WC_IF:
if (!s) {
Wordcode end = state->pc + WC_IF_SKIP(code);
taddstr("if ");
tindent++;
state->pc++;
n = tpush(code, 0);
n->u._if.end = end;
n->u._if.cond = 1;
} else if (s->pop) {
stack = 1;
} else if (s->u._if.cond) {
dec_tindent();
taddnl(0);
taddstr("then");
tindent++;
taddnl(0);
s->u._if.cond = 0;
} else if (state->pc < s->u._if.end) {
dec_tindent();
taddnl(0);
code = *state->pc++;
if (WC_IF_TYPE(code) == WC_IF_ELIF) {
taddstr("elif ");
tindent++;
s->u._if.cond = 1;
} else {
taddstr("else");
tindent++;
taddnl(0);
}
} else {
s->pop = 1;
dec_tindent();
taddnl(0);
taddstr("fi");
stack = 1;
}
break;
case WC_COND:
{
static char *c1[] = {
"=", "!=", "<", ">", "-nt", "-ot", "-ef", "-eq",
"-ne", "-lt", "-gt", "-le", "-ge", "=~"
};
int ctype;
if (!s) {
taddstr("[[ ");
n = tpush(code, 1);
n->u._cond.par = 2;
} else if (s->u._cond.par == 2) {
taddstr(" ]]");
stack = 1;
break;
} else if (s->u._cond.par == 1) {
taddstr(" )");
stack = 1;
break;
} else if (WC_COND_TYPE(s->code) == COND_AND) {
taddstr(" && ");
code = *state->pc++;
if (WC_COND_TYPE(code) == COND_OR) {
taddstr("( ");
n = tpush(code, 1);
n->u._cond.par = 1;
}
} else if (WC_COND_TYPE(s->code) == COND_OR) {
taddstr(" || ");
code = *state->pc++;
if (WC_COND_TYPE(code) == COND_AND) {
taddstr("( ");
n = tpush(code, 1);
n->u._cond.par = 1;
}
}
while (!stack) {
switch ((ctype = WC_COND_TYPE(code))) {
case COND_NOT:
taddstr("! ");
code = *state->pc++;
if (WC_COND_TYPE(code) <= COND_OR) {
taddstr("( ");
n = tpush(code, 1);
n->u._cond.par = 1;
}
break;
case COND_AND:
n = tpush(code, 1);
n->u._cond.par = 0;
code = *state->pc++;
if (WC_COND_TYPE(code) == COND_OR) {
taddstr("( ");
n = tpush(code, 1);
n->u._cond.par = 1;
}
break;
case COND_OR:
n = tpush(code, 1);
n->u._cond.par = 0;
code = *state->pc++;
if (WC_COND_TYPE(code) == COND_AND) {
taddstr("( ");
n = tpush(code, 1);
n->u._cond.par = 1;
}
break;
case COND_MOD:
taddstr(ecgetstr(state, EC_NODUP, NULL));
taddchr(' ');
taddlist(state, WC_COND_SKIP(code));
stack = 1;
break;
case COND_MODI:
{
char *name = ecgetstr(state, EC_NODUP, NULL);
taddstr(ecgetstr(state, EC_NODUP, NULL));
taddchr(' ');
taddstr(name);
taddchr(' ');
taddstr(ecgetstr(state, EC_NODUP, NULL));
stack = 1;
}
break;
default:
if (ctype < COND_MOD) {
/* Binary test: `a = b' etc. */
taddstr(ecgetstr(state, EC_NODUP, NULL));
taddstr(" ");
taddstr(c1[ctype - COND_STREQ]);
taddstr(" ");
taddstr(ecgetstr(state, EC_NODUP, NULL));
if (ctype == COND_STREQ ||
ctype == COND_STRNEQ)
state->pc++;
} else {
/* Unary test: `-f foo' etc. */
char c2[4];
c2[0] = '-';
c2[1] = ctype;
c2[2] = ' ';
c2[3] = '\0';
taddstr(c2);
taddstr(ecgetstr(state, EC_NODUP, NULL));
}
stack = 1;
break;
}
}
}
break;
case WC_ARITH:
taddstr("((");
taddstr(ecgetstr(state, EC_NODUP, NULL));
taddstr("))");
stack = 1;
break;
case WC_TRY:
if (!s) {
taddstr("{");
tindent++;
taddnl(0);
n = tpush(code, 0);
state->pc++;
/* this is the end of the try block alone */
n->u._subsh.end = state->pc + WC_CURSH_SKIP(state->pc[-1]);
} else if (!s->pop) {
state->pc = s->u._subsh.end;
dec_tindent();
taddnl(0);
taddstr("} always {");
tindent++;
taddnl(0);
s->pop = 1;
} else {
dec_tindent();
taddnl(0);
taddstr("}");
stack = 1;
}
break;
case WC_END:
stack = 1;
break;
default:
DPUTS(1, "unknown word code in gettext2()");
return;
}
}
tdopending();
}