Improved:Kit.coalesce charset

pouyakary · Jan 27, 2015 · 8608012 · 8608012
1 parent c0d45e1
commit 8608012
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Showing 2 changed files with 13 additions and 1 deletion.
diff --git a/src/Kit.js b/src/Kit.js
@@ -319,7 +319,15 @@ function coalesce(ranges) {
     results.push(b);
     return b;
   });
-  return results;
+  return results.reduce(function (results,range) {
+    if (range.length===2 && range[0]===pred(range[1])) {
+      results.push(range[0]);
+      results.push(range[1]);
+    } else {
+      results.push(range);
+    }
+    return results;
+  },[]);
 }
 
 function chr(n) {return String.fromCharCode(n)}

diff --git a/tests/KitTest.js b/tests/KitTest.js
@@ -28,6 +28,10 @@ function testCoalesce() {
   ranges=K.classify(K.negate(['Aa','az'])).ranges;
   results=K.coalesce(ranges);
   assert.deepEqual(results,K.negate(['Az']));
+
+  ranges=K.classify(['ab','cd','xy']).ranges;
+  results=K.coalesce(ranges);
+  assert.deepEqual(results,['ad','x','y']);
 }
 
 function testIdUnique() {