diff --git a/parse.leg b/parse.leg
index 668cb08..689670d 100644
--- a/parse.leg
+++ b/parse.leg
@@ -1897,6 +1897,71 @@ oop prim_String(oop scope, oop params)
     return makeString(printString(get(params, Map, elements)[0].value));
 }
 
+oop prim_Integer(oop scope, oop params)
+{
+    if (!map_hasIntegerKey(params, 0)) return null;
+    oop arg= get(params, Map, elements)[0].value;
+    switch (getType(arg)) {
+        case Undefined: {
+            return makeInteger(0);
+        }
+        case Integer: {
+            // does it make sense to copy an integer?
+            // return arg;
+            return makeInteger(getInteger(arg));
+        }
+        case String: {
+            return makeInteger(strtoll(get(arg, String, value), NULL, 10));
+        }
+        case Symbol: {
+            // since symbol are ident, they cannot start with a number so it's impossible that strtoll succeed
+            return makeInteger(strtoll(get(arg, Symbol, name), NULL, 10));
+        }
+    }
+    return null;
+}
+
+oop prim_Map(oop scope, oop params)
+{
+    if (!map_hasIntegerKey(params, 0)) return null;
+    oop arg= get(params, Map, elements)[0].value;
+    switch (getType(arg)) {
+        case Undefined: {
+            return makeMap();
+        }
+        case Integer: {
+            oop map= makeMap();
+            map_set(map, makeInteger(0), arg);
+            return map;
+        }
+        case Function: {
+            oop map= makeMap();
+            map_set(map, get(arg, Function, name), arg);
+            return map;
+        }
+        case String: {
+            oop map= makeMap();
+            size_t len= string_size(arg);
+            for(size_t i=0; i<len; ++i) {
+                map_set(map, makeInteger(i), makeInteger(get(arg, String, value)[i]));
+            }
+            return map;
+        }
+        case Symbol: {
+            oop map= makeMap();
+            size_t len= strlen(get(arg, Symbol, name));
+            for(size_t i=0; i<len; ++i) {
+                map_set(map, makeInteger(i), makeInteger(get(arg, Symbol, name)[i]));
+            }
+            return map;
+        }
+        case Map: {
+            return clone(arg);
+        }
+    }
+    return null;
+}
+
 oop prim_scope(oop scope, oop params)
 {
     return fixScope(scope);
@@ -1931,6 +1996,8 @@ int main(int argc, char **argv)
     map_set(globals, intern("import"      ), makeFunction(prim_import,       intern("import"      ), null, null, globals, null));
     map_set(globals, intern("microseconds"), makeFunction(prim_microseconds, intern("microseconds"), null, null, globals, null));
     map_set(globals, intern("String"      ), makeFunction(prim_String      , intern("String"      ), null, null, globals, null));
+    map_set(globals, intern("Integer"     ), makeFunction(prim_Integer     , intern("Integer"     ), null, null, globals, null));
+    map_set(globals, intern("Map"         ), makeFunction(prim_Map         , intern("Map"         ), null, null, globals, null));
 
     map_set(globals, intern("scope"), makeFunction(prim_scope, intern("scope"), null, null, globals, null));