chore: make some utils universal

Author: morgante

.grit/patterns/universal/blocks.grit

@@ -0,0 +1,29 @@
+language universal
+
+// Implementation
+function group_blocks($target) {
+  $blocks = [],
+  $target <: some bubble($blocks, $block, $block_tail) $current where {
+        if ($block <: undefined) {
+            $block = [$current],
+            $block_tail = $current,
+        } else {
+            // Are we right after the same block?
+            if ($current <: after $block_tail) {
+                $block += $current,
+                $block_tail = $current
+            } else {
+                // Insert the previous block into the list
+                $blocks += $block,
+                $block = [$current],
+                $block_tail = $current
+            }
+        }
+    },
+    // Insert final block
+    if (not $block <: undefined) {
+        $blocks += $block
+    },
+    return $blocks
+}
+

.grit/patterns/js/lists.grit renamed to .grit/patterns/universal/lists.grit

@@ -1,4 +1,4 @@
-language js
+language universal
 
 // Concat two lists together
 function concat($list_a, $list_b) {

.grit/patterns/js/blocks.md renamed to .grit/patterns/universal/use_blocks.md

@@ -3,32 +3,7 @@
 The `group_blocks` function takes a `target` list and returns a list of lists, where each sublist is a block of items that are adjacent to each other in the original program.
 
 ```grit
-// Implementation
-function group_blocks($target) {
-  $blocks = [],
-  $target <: some bubble($blocks, $block, $block_tail) $current where {
-        if ($block <: undefined) {
-            $block = [$current],
-            $block_tail = $current,
-        } else {
-            // Are we right after the same block?
-            if ($current <: after $block_tail) {
-                $block += $current,
-                $block_tail = $current
-            } else {
-                // Insert the previous block into the list
-                $blocks += $block,
-                $block = [$current],
-                $block_tail = $current
-            }
-        }
-    },
-    // Insert final block
-    if (not $block <: undefined) {
-        $blocks += $block
-    },
-    return $blocks
-}
+language js
 
 // Usage example
 file($body) where {