From 566d54fe549286895fdef8aa9f385686405dd290 Mon Sep 17 00:00:00 2001
From: Nicholas Noll <nbnoll@eml.cc>
Date: Wed, 13 Oct 2021 16:46:20 -0700
Subject: RM(rc): old code. too many assumptions baked in

---
 sys/cmd/rc/tree.c | 146 ------------------------------------------------------
 1 file changed, 146 deletions(-)
 delete mode 100644 sys/cmd/rc/tree.c

(limited to 'sys/cmd/rc/tree.c')

diff --git a/sys/cmd/rc/tree.c b/sys/cmd/rc/tree.c
deleted file mode 100644
index 5ab6c5d..0000000
--- a/sys/cmd/rc/tree.c
+++ /dev/null
@@ -1,146 +0,0 @@
-#include "rc.h"
-#include "exec.h"
-#include "io.h"
-#include "fns.h"
-Tree *treenodes;
-/*
- * create and clear a new tree node, and add it
- * to the node list.
- */
-
-Tree*
-newtree(void)
-{
-	Tree *t = new(Tree);
-	t->iskw = 0;
-	t->str = 0;
-	t->child[0] = t->child[1] = t->child[2] = 0;
-	t->next = treenodes;
-	treenodes = t;
-	return t;
-}
-
-void
-freenodes(void)
-{
-	Tree *t, *u;
-	for(t = treenodes;t;t = u){
-		u = t->next;
-		if(t->str)
-			efree(t->str);
-		efree((char *)t);
-	}
-	treenodes = 0;
-}
-
-Tree*
-tree1(int type, Tree *c0)
-{
-	return tree3(type, c0, (Tree *)0, (Tree *)0);
-}
-
-Tree*
-tree2(int type, Tree *c0, Tree *c1)
-{
-	return tree3(type, c0, c1, (Tree *)0);
-}
-
-Tree*
-tree3(int type, Tree *c0, Tree *c1, Tree *c2)
-{
-	Tree *t;
-	if(type==';'){
-		if(c0==0)
-			return c1;
-		if(c1==0)
-			return c0;
-	}
-	t = newtree();
-	t->type = type;
-	t->child[0] = c0;
-	t->child[1] = c1;
-	t->child[2] = c2;
-	return t;
-}
-
-Tree*
-mung1(Tree *t, Tree *c0)
-{
-	t->child[0] = c0;
-	return t;
-}
-
-Tree*
-mung2(Tree *t, Tree *c0, Tree *c1)
-{
-	t->child[0] = c0;
-	t->child[1] = c1;
-	return t;
-}
-
-Tree*
-mung3(Tree *t, Tree *c0, Tree *c1, Tree *c2)
-{
-	t->child[0] = c0;
-	t->child[1] = c1;
-	t->child[2] = c2;
-	return t;
-}
-
-Tree*
-epimung(Tree *comp, Tree *epi)
-{
-	Tree *p;
-	if(epi==0)
-		return comp;
-	for(p = epi;p->child[1];p = p->child[1]);
-	p->child[1] = comp;
-	return epi;
-}
-/*
- * Add a SIMPLE node at the root of t and percolate all the redirections
- * up to the root.
- */
-
-Tree*
-simplemung(Tree *t)
-{
-	Tree *u;
-	struct Io *s;
-	t = tree1(SIMPLE, t);
-	s = openstr();
-	pfmt(s, "%t", t);
-	t->str = strdup(s->strp);
-	closeio(s);
-	for(u = t->child[0];u->type==ARGLIST;u = u->child[0]){
-		if(u->child[1]->type==DUP
-		|| u->child[1]->type==REDIR){
-			u->child[1]->child[1] = t;
-			t = u->child[1];
-			u->child[1] = 0;
-		}
-	}
-	return t;
-}
-
-Tree*
-token(char *str, int type)
-{
-	Tree *t = newtree();
-	t->type = type;
-	t->str = strdup(str);
-	return t;
-}
-
-void
-freetree(Tree *p)
-{
-	if(p==0)
-		return;	
-	freetree(p->child[0]);
-	freetree(p->child[1]);
-	freetree(p->child[2]);
-	if(p->str)
-		efree(p->str);
-	efree((char *)p);
-}
-- 
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