Added code climate badge and had to modify some code that, to it, loo…

…ked duplicated.

README.md

@@ -6,6 +6,7 @@ But better, I think, read on...
 [![Codacy Badge][codacy-image]][codacy-url]
 [![david-dm][david-dm-image]][david-dm-url]
 [![bitHound Code][bithound-image]][bithound-url]
+[![Code Climate][codeclimate-image]][codeclimate-url]
 
 ## The Problem
 
@@ -128,4 +129,7 @@ console.log( `packed letters and numbers only: ${strip.packed_alphanum( simpleSt
 [david-dm-url]: https://david-dm.org/julianjensen/yads
 
 [bithound-image]: https://www.bithound.io/github/julianjensen/yads/badges/code.svg
-[bithound-url]: https://www.bithound.io/github/julianjensen/yads
+[bithound-url]: https://www.bithound.io/github/julianjensen/yads
+
+[codeclimate-image]: https://codeclimate.com/github/julianjensen/yads/badges/gpa.svg
+[codeclimate-url]: https://codeclimate.com/github/julianjensen/yads

index.js

@@ -100,15 +100,21 @@ const defaultDiacriticsRemovalMap = [
 defaultDiacriticsRemovalMap.forEach( o => [ ...o.letters ].forEach( l => diacriticsMap[ l ] = o.base ) );
 
 const diacritics = {
-    _slower: str => str.replace( /[\u0300-\u036F]|[\u1AB0-\u1AFF]|[\u1DC0-\u1DFF]|[\u20D0-\u20FF]|[\uFE20-\uFE2F]/g, '' ).replace( /[^\u0000-\u007E]/g, a => diacriticsMap[ a ] || a ),
-    _faster: str => str.replace( /[^\u0000-\u007E]/g, a => diacriticsMap[ a ] || a ),
-    precomposed: imStr => ( diacritics.remove_diacritics = str => diacritics._faster( str ) ) && imStr && diacritics._faster( imStr ),
-    combining: imStr => ( diacritics.remove_diacritics = str => diacritics._slower( str ) ) && imStr && diacritics._slower( imStr ),
-    remove_diacritics: str => diacritics._slower( str ),
+    _slower: str => typeof str === 'string' && str.replace( /[\u0300-\u036F]|[\u1AB0-\u1AFF]|[\u1DC0-\u1DFF]|[\u20D0-\u20FF]|[\uFE20-\uFE2F]/g, '' ).replace( /[^\u0000-\u007E]/g, a => diacriticsMap[ a ] || a ),
+    _faster: str => typeof str === 'string' && str.replace( /[^\u0000-\u007E]/g, a => diacriticsMap[ a ] || a ),
+    __mode: null,
+
+    precomposed: fStr => ( diacritics.__mode = diacritics._faster )( fStr ),
+    combining: sStr => ( diacritics.__mode = diacritics._slower )( sStr ),
+
+    remove_diacritics: str => diacritics.__mode( str ),
+
     letters: str => module.exports.remove_diacritics( str ).replace( /[^a-z ]/gi, '' ),
     packed: str => module.exports.remove_diacritics( str ).replace( /[^a-z]/gi, '' ),
     alphanum: str => module.exports.remove_diacritics( str ).replace( /[^a-z0-9 ]/gi, '' ),
     packed_alphanum: str => module.exports.remove_diacritics( str ).replace( /[^a-z0-9]/gi, '' )
 };
 
+diacritics.__mode = diacritics._slower;
+
 module.exports = diacritics;