Move each rule implementation into its own file (fixes #83).

lib/md033.js

@@ -0,0 +1,41 @@
+// @ts-check
+
+"use strict";
+
+var shared = require("./shared");
+
+var htmlRe = /<[^>]*>/;
+
+module.exports = {
+  "names": [ "MD033", "no-inline-html" ],
+  "description": "Inline HTML",
+  "tags": [ "html" ],
+  "function": function MD033(params, onError) {
+    var allowedElements = (params.config.allowed_elements || [])
+      .map(function forElement(element) {
+        return element.toLowerCase();
+      });
+    function forToken(token) {
+      token.content.split(shared.newLineRe)
+        .forEach(function forLine(line, offset) {
+          var allowed = (line.match(/<[^/\s>!]*/g) || [])
+            .filter(function forElement(element) {
+              return element.length > 1;
+            })
+            .map(function forElement(element) {
+              return element.slice(1).toLowerCase();
+            })
+            .filter(function forElement(element) {
+              return allowedElements.indexOf(element) === -1;
+            });
+          if (allowed.length) {
+            shared.addError(onError, token.lineNumber + offset,
+              "Element: " + allowed[0], null,
+              shared.rangeFromRegExp(token.line, htmlRe));
+          }
+        });
+    }
+    shared.filterTokens(params, "html_block", forToken);
+    shared.forEachInlineChild(params, "html_inline", forToken);
+  }
+};