1 files changed, 34 insertions, 0 deletions
diff --git a/lib/epub.js/types/mapping.d.ts b/lib/epub.js/types/mapping.d.ts
new file mode 100644
index 0000000..00f6bb4
--- /dev/null
+++ b/lib/epub.js/types/mapping.d.ts
@@ -0,0 +1,34 @@
+import Layout from "./layout";
+import Contents from "./contents";
+
+export interface EpubCFIPair {
+  start: string,
+  end: string
+}
+
+export interface RangePair {
+  start: Range,
+  end: Range
+}
+
+export default class Mapping {
+  constructor(layout: Layout, direction?: string, axis?: string, dev?: boolean);
+
+  page(contents: Contents, cfiBase: string, start: number, end: number): EpubCFIPair;
+
+  axis(axis: string): boolean;
+
+  private walk(root: Node, func: Function);
+
+  private findStart(root: Node, start: number, end: number): Range;
+
+  private findEnd(root: Node, start: number, end: number): Range;
+
+  private findTextStartRange(node: Node, start: number, end: number): Range;
+
+  private findTextEndRange(node: Node, start: number, end: number): Range;
+
+  private splitTextNodeIntoRanges(node: Node, _splitter?: string): Array<Range>;
+
+  private rangePairToCfiPair(cfiBase: string, rangePair: RangePair): EpubCFIPair;
+}