Encrypt strings with characters not in alphabet

archie94 · archie94 · commit 5d5527c131ad · 2016-06-09T21:54:41.000+05:30
diff --git a/algorithm/cryptography/caesar_cipher/basic/code.js b/algorithm/cryptography/caesar_cipher/basic/code.js
@@ -23,7 +23,7 @@ function cipher(str, rotation, direction, cipherTracer) {
     cipherTracer._wait();
 
     var currChar = str.charAt(i);
-    if ( currChar !== ' ' ) { // do not encrpt/decrypt spaces 
+    if (typeof alphabetMap[currChar] === 'number') { // don't encrpt/decrypt characters not in  alphabetMap
       var r = rotation;
 
       logger._print('Rotating ' + currChar + ' ' + direction + ' ' + rotation + ' times');
@@ -35,7 +35,7 @@ function cipher(str, rotation, direction, cipherTracer) {
         cipherTracer._notify(i, currChar)._wait();
       }
     } else {
-      logger._print('Ignore space');
+      logger._print('Ignore this character');
     }
     str = str.substring(0, i) + currChar + str.substring(i + 1);
     logger._print('Current result: ' + str);
diff --git a/algorithm/cryptography/caesar_cipher/basic/data.js b/algorithm/cryptography/caesar_cipher/basic/data.js
@@ -1,4 +1,4 @@
-var string = 'secret msg';
+var string = 'hello! how are you doing?';
 var rotation = 5;
 var alphabet = 'abcdefghijklmnopqrstuvwxyz';
 // create a map of char -> position to improve run time

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-var string = 'secret msg';`
	`1`	`+var string = 'hello! how are you doing?';`
`2`	`2`	`var rotation = 5;`
`3`	`3`	`var alphabet = 'abcdefghijklmnopqrstuvwxyz';`
`4`	`4`	`// create a map of char -> position to improve run time`