[vala] glib-2.0: make string.joinv handle non-null-terminated arrays

[Evan Nemerson <evann src gnome org>]

commit 3c0674fafe5d11362fe3f88bb4c849c34789b5d5
Author: Evan Nemerson <evan coeus-group com>
Date:   Fri Jan 24 23:21:05 2014 -0800

    glib-2.0: make string.joinv handle non-null-terminated arrays
    
    Fixes bug 686451.

 vapi/glib-2.0.vapi |   29 +++++++++++++++++++++++++++--
 1 files changed, 27 insertions(+), 2 deletions(-)
---
diff --git a/vapi/glib-2.0.vapi b/vapi/glib-2.0.vapi
index b4c4212..7f867b5 100644
--- a/vapi/glib-2.0.vapi
+++ b/vapi/glib-2.0.vapi
@@ -957,8 +957,33 @@ public class string {
        public string[] split (string delimiter, int max_tokens = 0);
        [CCode (cname = "g_strsplit_set", array_length = false, array_null_terminated = true)]
        public string[] split_set (string delimiters, int max_tokens = 0);
-       [CCode (cname = "g_strjoinv")]
-       public static string joinv (string separator, [CCode (array_length = false, array_null_terminated = 
true)] string[] str_array);
+       [CCode (cname = "g_stpcpy")]
+       private static void* copy_to_buffer (void* dest, string src);
+       [CCode (cname = "_vala_g_strjoinv")]
+       public static string joinv (string? separator, string[]? str_array) {
+               if (separator == null) {
+                       separator = "";
+               }
+               if (str_array != null) {
+                       int i;
+                       size_t len = 1;
+                       for (i = 0 ; (str_array.length != -1 && i < str_array.length) || (str_array.length == 
-1 && str_array[i] != null) ; i++) {
+                               len += str_array[i].length;
+                       }
+                       len += separator.length * (i - 1);
+
+                       string* res = GLib.malloc (len);
+                       void* ptr = string.copy_to_buffer ((void*) res, str_array[0]);
+                       for (i = 1 ; str_array[i] != null ; i++) {
+                               ptr = string.copy_to_buffer (ptr, separator);
+                               ptr = string.copy_to_buffer (ptr, str_array[i]);
+                       }
+
+                       return (owned) res;
+               } else {
+                       return "";
+               }
+       }
        [CCode (cname = "g_strjoin")]
        public static string join (string separator, ...);
        [CCode (cname = "g_strnfill")]