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don’t clobber the tree used for printing IOACTs in process_TIF (LP: #907224)

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tg
2011-12-29 23:36:25 +00:00
parent bb51eee63c
commit 31bf077591
3 changed files with 336 additions and 13 deletions
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19
tree.c
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@@ -22,7 +22,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/tree.c,v 1.53 2011/12/29 22:54:22 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/tree.c,v 1.54 2011/12/29 23:36:25 tg Exp $");
#define INDENT 8
@@ -133,25 +133,26 @@ ptree(struct op *t, int indent, struct shf *shf)
#endif
case TIF:
i = 2;
t1 = t;
goto process_TIF;
do {
t = t->right;
t1 = t1->right;
i = 0;
fptreef(shf, indent, "%;");
process_TIF:
/* 5 == strlen("elif ") */
fptreef(shf, indent + 5 - i, "elif %T" + i, t->left);
t = t->right;
if (t->left != NULL) {
fptreef(shf, indent + 5 - i, "elif %T" + i, t1->left);
t1 = t1->right;
if (t1->left != NULL) {
fptreef(shf, indent, "%;");
fptreef(shf, indent + INDENT, "%s%N%T",
"then", t->left);
"then", t1->left);
}
} while (t->right && t->right->type == TELIF);
if (t->right != NULL) {
} while (t1->right && t1->right->type == TELIF);
if (t1->right != NULL) {
fptreef(shf, indent, "%;");
fptreef(shf, indent + INDENT, "%s%N%T",
"else", t->right);
"else", t1->right);
}
fptreef(shf, indent, "%;fi ");
break;