[PATCH 1/2] internal: Add a second parameter to zlinklist2array(), analogously to hlinklist2array().

[Daniel Shahaf <d.s@xxxxxxxxxxxxxxxxxx>]

Will be used in the next commit.
---
 Src/Modules/curses.c |  4 ++--
 Src/Zle/compcore.c   |  4 ++--
 Src/Zle/computil.c   |  4 ++--
 Src/builtin.c        | 10 +++++-----
 Src/linklist.c       | 13 +++++++++----
 5 files changed, 20 insertions(+), 15 deletions(-)

diff --git a/Src/Modules/curses.c b/Src/Modules/curses.c
index 19f285e34..e46903916 100644
--- a/Src/Modules/curses.c
+++ b/Src/Modules/curses.c
@@ -1212,7 +1212,7 @@ zccmd_input(const char *nam, char **args)
 		    addlinknode(margs, "CTRL");
 		if (mevent.bstate & BUTTON_ALT)
 		    addlinknode(margs, "ALT");
-		if (!setaparam(args[3], zlinklist2array(margs)))
+		if (!setaparam(args[3], zlinklist2array(margs, 1)))
 		    return 1;
 	    } else {
 #endif
@@ -1464,7 +1464,7 @@ zccmd_querychar(const char *nam, char **args)
     }
 
     /* Turn this into an array and store it. */
-    return !setaparam(args[1] ? args[1] : "reply", zlinklist2array(clist));
+    return !setaparam(args[1] ? args[1] : "reply", zlinklist2array(clist, 1));
 }
 
 
diff --git a/Src/Zle/compcore.c b/Src/Zle/compcore.c
index 7e3badc57..958fef8e7 100644
--- a/Src/Zle/compcore.c
+++ b/Src/Zle/compcore.c
@@ -648,7 +648,7 @@ callcompfunc(char *s, char *fn)
 	if (compredirs)
 	    freearray(compredirs);
         if (rdstrs)
-            compredirs = zlinklist2array(rdstrs);
+            compredirs = zlinklist2array(rdstrs, 1);
         else
             compredirs = (char **) zshcalloc(sizeof(char *));
 
@@ -1922,7 +1922,7 @@ set_comp_sep(void)
 mod_export void
 set_list_array(char *name, LinkList l)
 {
-    setaparam(name, zlinklist2array(l));
+    setaparam(name, zlinklist2array(l, 1));
 }
 
 /* Get the words from a variable or a (list of words). */
diff --git a/Src/Zle/computil.c b/Src/Zle/computil.c
index 90db8b4b8..ddfa70077 100644
--- a/Src/Zle/computil.c
+++ b/Src/Zle/computil.c
@@ -3591,7 +3591,7 @@ bin_compvalues(char *nam, char **args, UNUSED(Options ops), UNUSED(int func))
 	if (cv_laststate.vals) {
 	    char **ret;
 
-	    ret = zlinklist2array(cv_laststate.vals);
+	    ret = zlinklist2array(cv_laststate.vals, 1);
 	    sethparam(args[1], ret);
 
 	    return 0;
@@ -4016,7 +4016,7 @@ bin_comptry(char *nam, char **args, UNUSED(Options ops), UNUSED(int func))
 
 		    set = (Ctset) zalloc(sizeof(*set));
 
-		    set->tags = zlinklist2array(list);
+		    set->tags = zlinklist2array(list, 1);
 		    set->next = NULL;
 		    set->ptr = NULL;
 		    set->tag = NULL;
diff --git a/Src/builtin.c b/Src/builtin.c
index 3dab3f9b4..d5a874a95 100644
--- a/Src/builtin.c
+++ b/Src/builtin.c
@@ -2280,7 +2280,7 @@ typeset_single(char *cname, char *pname, Param pm, UNUSED(int func),
 	} else if (asg->flags & ASG_ARRAY) {
 	    int flags = (asg->flags & ASG_KEY_VALUE) ? ASSPM_KEY_VALUE : 0;
 	    if (!(pm = assignaparam(pname, asg->value.array ?
-				 zlinklist2array(asg->value.array) :
+				 zlinklist2array(asg->value.array, 1) :
 				 mkarray(NULL), flags)))
 		return NULL;
 	}
@@ -2442,7 +2442,7 @@ typeset_single(char *cname, char *pname, Param pm, UNUSED(int func),
 	} else if (PM_TYPE(on) == PM_ARRAY && ASG_ARRAYP(asg)) {
 	    int flags = (asg->flags & ASG_KEY_VALUE) ? ASSPM_KEY_VALUE : 0;
 	    if (!(pm = assignaparam(pname, asg->value.array ?
-				    zlinklist2array(asg->value.array) :
+				    zlinklist2array(asg->value.array, 1) :
 				    mkarray(NULL), flags)))
 		return NULL;
 	    dont_set = 1;
@@ -2536,7 +2536,7 @@ typeset_single(char *cname, char *pname, Param pm, UNUSED(int func),
 		    arrayval = mkarray(NULL);
 		}
 	    } else if (asg->value.array)
-		arrayval = zlinklist2array(asg->value.array);
+		arrayval = zlinklist2array(asg->value.array, 1);
 	    else
 		arrayval = mkarray(NULL);
 	    if (!(pm=assignaparam(pname, arrayval, flags)))
@@ -2923,7 +2923,7 @@ bin_typeset(char *name, char **argv, LinkList assigns, Options ops, int func)
 	apm->ename = ztrdup(asg0.name);
 	if (asg->value.array) {
 	    int flags = (asg->flags & ASG_KEY_VALUE) ? ASSPM_KEY_VALUE : 0;
-	    assignaparam(asg->name, zlinklist2array(asg->value.array), flags);
+	    assignaparam(asg->name, zlinklist2array(asg->value.array, 1), flags);
 	} else if (oldval)
 	    assignsparam(asg0.name, oldval, 0);
 	unqueue_signals();
@@ -3901,7 +3901,7 @@ bin_whence(char *nam, char **argv, Options ops, int func)
 	}
 	unqueue_signals();
 	if (all) {
-	    allmatched = argv = zlinklist2array(matchednodes);
+	    allmatched = argv = zlinklist2array(matchednodes, 1);
 	    matchednodes = NULL;
 	    popheap();
 	} else
diff --git a/Src/linklist.c b/Src/linklist.c
index 85d9bb367..f64685d9e 100644
--- a/Src/linklist.c
+++ b/Src/linklist.c
@@ -438,22 +438,27 @@ hlinklist2array(LinkList list, int copy)
 
 /*
  * Convert a linked list whose data elements are strings to
- * an array.  The result is a permanently allocated, freearrayable
- * array.
+ * a permanently-allocated array.  The elements of the array are the same
+ * elements as the linked list data if copy is 0, else they are duplicated
+ * into permanent memory so the result is a permanently allocated,
+ * freearrayable array that's a deep copy of the linked list.
  */
 
 /**/
 mod_export char **
-zlinklist2array(LinkList list)
+zlinklist2array(LinkList list, int copy)
 {
     int l = countlinknodes(list);
     char **ret = (char **) zalloc((l + 1) * sizeof(char *)), **p;
     LinkNode n;
 
     for (n = firstnode(list), p = ret; n; incnode(n), p++) {
-	*p = ztrdup((char *) getdata(n));
+	*p = (char *) getdata(n);
+	if (copy)
+	    *p = ztrdup(*p);
     }
     *p = NULL;
 
     return ret;
 }
+