Initial commit

build/posthtml-include.js

@@ -0,0 +1,41 @@
+import fs from "fs";
+import path from "path";
+
+import parser from "posthtml-parser";
+
+export default function(options) {
+  options = options || {};
+  options.root = options.root || './';
+  options.encoding = options.encoding || 'utf-8';
+
+  return function posthtmlInclude(tree) {
+    tree.match({ tag: 'include' }, function(node) {
+      if (!node.attrs.src) {
+        return {
+          tag: false,
+          content: null
+        };
+      }
+
+      const src = path.resolve(options.root, node.attrs.src);
+      const source = fs.readFileSync(src, options.encoding);
+      const subtree = parser(source);
+      subtree.match = tree.match;
+      const content = source.indexOf('include') !== -1? posthtmlInclude(subtree): subtree;
+
+      if (tree.messages) {
+        tree.messages.push({
+          type: "dependency",
+          file: src
+        });
+      }
+
+      return {
+        tag: false,
+        content: content
+      };
+    });
+
+    return tree;
+  };
+};