Add foreach EXP as $var (INIT; UPDATE) form

parser.y

@@ -243,6 +243,11 @@ Term "as" '$' IDENT '|' Exp {
   jv_free($5);
 } |
 
+"foreach" Term "as" '$' IDENT '(' Exp ';' Exp ')' {
+  $$ = gen_foreach(jv_string_value($5), $2, $7, $9, gen_noop());
+  jv_free($5);
+} |
+
 "if" Exp "then" Exp ElseBody {
   $$ = gen_cond($2, $4, $5);
 } |

tests/all.test

@@ -234,6 +234,10 @@ null
 [11,22,33,44,55,66,77,88,99]
 [11,22,33]
 
+[foreach range(5) as $item (0; $item)]
+null
+[0,1,2,3,4]
+
 [limit(3; .[])]
 [11,22,33,44,55,66,77,88,99]
 [11,22,33]