1 files changed, 28 insertions, 0 deletions
diff --git a/llparse-builder/src/transform/creator.ts b/llparse-builder/src/transform/creator.ts
new file mode 100644
index 0000000..eaf3d5c
--- /dev/null
+++ b/llparse-builder/src/transform/creator.ts
@@ -0,0 +1,28 @@
+import { Transform } from './base';
+import { ToLower } from './to-lower';
+import { ToLowerUnsafe } from './to-lower-unsafe';
+
+/**
+ * API for creating character transformations.
+ *
+ * The results of methods of this class can be used as an argument to:
+ * `p.node().transform(...)`.
+ */
+export class Creator {
+  /**
+   * Unsafe transform to lowercase.
+   *
+   * The operation of this transformation is equivalent to:
+   * `String.fromCharCode(input.charCodeAt(0) | 0x20)`.
+   */
+  public toLowerUnsafe(): Transform {
+    return new ToLowerUnsafe();
+  }
+
+  /**
+   * Safe transform to lowercase.
+   */
+  public toLower(): Transform {
+    return new ToLower();
+  }
+}