added QuotedPrintable{De,En}coder.

app/app.component.ts

@@ -32,6 +32,9 @@ export class AppComponent extends OnInit {
             try {
                 result = converter.convert(content);
             } catch (error) {
+                if (typeof console === "object" && typeof console.log === "function") {
+                    console.log(error);
+                }
                 result = null;
             }
             if (result === null) {

app/converter/quotedprintabledecoder.ts

@@ -0,0 +1,42 @@
+import {Converter} from "./converter";
+
+declare var window:any;
+
+export class QuotedPrintableDecoder implements Converter {
+
+    private utf8:any = window.utf8;
+    private quotedPrintable:any = window.quotedPrintable;
+
+    getDisplayname():string {
+        return "Decode quoted printable";
+    }
+
+    getId():string {
+        return "decodequotedprintable";
+    }
+
+    convert(input:string):string {
+        return this.utf8.decode(this.quotedPrintable.decode(input));
+    }
+}
+
+/*
+ {
+ "id": "decodequotedprintable",
+ "name": "Decode quoted printable",
+ "convert": function (input) {
+ try {
+ return {
+ "status": "OK",
+ "content": utf8.decode(quotedPrintable.decode(input))
+ };
+ } catch (exception) {
+ return {
+ "status": "ERROR",
+ "content": "Invalid quoted printable string."
+ };
+ }
+ }
+ },
+
+ */

app/converter/quotedprintableencoder.ts

@@ -0,0 +1,18 @@
+import {Converter} from "./converter";
+
+declare var window:any;
+
+export class QuotedPrintableEncoder implements Converter {
+
+    getDisplayname():string {
+        return "Encode quoted printable";
+    }
+
+    getId():string {
+        return "encodequotedprintable";
+    }
+
+    convert(input:string):string {
+        return window.quotedPrintable.encode(window.utf8.encode(input));
+    }
+}

app/converterregistry.service.ts

@@ -12,6 +12,8 @@ import {DecToHexConverter} from "./converter/dectohexconverter";
 import {HexToDecConverter} from "./converter/hextodecconverter";
 import {DecToBinConverter} from "./converter/dectobinconverter";
 import {BinToDecConverter} from "./converter/bintodecconverter";
+import {QuotedPrintableDecoder} from "./converter/quotedprintabledecoder";
+import {QuotedPrintableEncoder} from "./converter/quotedprintableencoder";
 
 @Injectable()
 export class ConverterregistryService {
@@ -47,6 +49,8 @@ export class ConverterregistryService {
         this.registerConverter(new HexToDecConverter());
         this.registerConverter(new DecToBinConverter());
         this.registerConverter(new BinToDecConverter());
+        this.registerConverter(new QuotedPrintableEncoder());
+        this.registerConverter(new QuotedPrintableDecoder());
     }
 
     private registerConverter(converter:Converter):void {