1 files changed, 39 insertions, 0 deletions
diff --git a/src/emap/script_buildins.c b/src/emap/script_buildins.c
index 703307a..78fb940 100644
--- a/src/emap/script_buildins.c
+++ b/src/emap/script_buildins.c
@@ -1991,6 +1991,32 @@ BUILDIN(htIterator)
         return false; \
     }
 
+BUILDIN(htiFirstKey)
+{
+    int64 id = script_getnum(st, 2);
+    checkHtIteratorExists(id);
+
+    const char * key = htreg->iterator_firstkey(id);
+    if (key)
+        script_pushstrcopy(st, key);
+    else
+        script_pushstrcopy(st, "");
+    return true;
+}
+
+BUILDIN(htiLastKey)
+{
+    int64 id = script_getnum(st, 2);
+    checkHtIteratorExists(id);
+
+    const char * key = htreg->iterator_lastkey(id);
+    if (key)
+        script_pushstrcopy(st, key);
+    else
+        script_pushstrcopy(st, "");
+    return true;
+}
+
 BUILDIN(htiNextKey)
 {
     int64 id = script_getnum(st, 2);
@@ -2004,6 +2030,19 @@ BUILDIN(htiNextKey)
     return true;
 }
 
+BUILDIN(htiPrevKey)
+{
+    int64 id = script_getnum(st, 2);
+    checkHtIteratorExists(id);
+
+    const char * key = htreg->iterator_prevkey(id);
+    if (key)
+        script_pushstrcopy(st, key);
+    else
+        script_pushstrcopy(st, "");
+    return true;
+}
+
 BUILDIN(htiCheck)
 {
     int64 id = script_getnum(st, 2);