Support switching rare and scoped typographer replacements

lib/rules_core/replacements.js

@@ -85,21 +85,25 @@ function replace_rare(inlineTokens) {
   }
 }
 
-
 module.exports = function replace(state) {
   var blkIdx;
+  var typographerOption = state.md.options.typographer;
+
+  if (!typographerOption) { return; }
 
-  if (!state.md.options.typographer) { return; }
+  var optionIsObject = typeof typographerOption === 'object';
+  var replaceRare = !optionIsObject || typographerOption.rare;
+  var replaceIP = !optionIsObject || typographerOption.intellectualProperty;
 
   for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {
 
     if (state.tokens[blkIdx].type !== 'inline') { continue; }
 
-    if (SCOPED_ABBR_TEST_RE.test(state.tokens[blkIdx].content)) {
+    if (replaceIP && SCOPED_ABBR_TEST_RE.test(state.tokens[blkIdx].content)) {
       replace_scoped(state.tokens[blkIdx].children);
     }
 
-    if (RARE_RE.test(state.tokens[blkIdx].content)) {
+    if (replaceRare && RARE_RE.test(state.tokens[blkIdx].content)) {
       replace_rare(state.tokens[blkIdx].children);
     }