The Improved Caesar Pig Latin Cipher

Clash Royale CLAN TAG#URR8PPP

up vote
15
down vote

favorite

The problem with the Caesar cipher is the resulting words are often unpronounceable. The problem with Pig Latin is that it is easy to decode. Why not combine them?

Input

A word consisting of the 26 english letters.

Output

First, change every consonant in the word to the next consonant in the alphabet. So, b goes to c, d goes to f, and z goes to b. Then, change every vowel to the next vowel in the alphabet (u goes to a). Last, only if the first letter of the word is a consonant, move that letter to the end of the word and add "ay" to the end of the word.

Examples:

cat -> evday 
dog -> uhfay 
eel -> iim

• This is code-golf, so the shortest code wins.


• Case does not matter.


• Vowels that will be used are A, E, I, O, and U

code-golf string cipher

share|improve this question

edited 27 mins ago

u_ndefined

2918

asked 17 hours ago

qazwsx

764

New contributor

qazwsx is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  will we have capital letters in the input?
  – Jo King
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  no, but you can if you want
  – qazwsx
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  Welcome to PPCG! Very nice challenge, clearly presented.
  – Jonathan Allan
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Suggested test case: z → bay
  – Arnauld
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  jot ot e wisz opvisitvoph dupdiqv cav o fu puv vjopl ov jimqt xovj vji ecomovz vu qsupuapdi vji xusftvay
  – Shadow
  8 hours ago
  
  

  
  
  
  

add a comment | 

up vote
15
down vote

favorite

The problem with the Caesar cipher is the resulting words are often unpronounceable. The problem with Pig Latin is that it is easy to decode. Why not combine them?

Input

A word consisting of the 26 english letters.

Output

First, change every consonant in the word to the next consonant in the alphabet. So, b goes to c, d goes to f, and z goes to b. Then, change every vowel to the next vowel in the alphabet (u goes to a). Last, only if the first letter of the word is a consonant, move that letter to the end of the word and add "ay" to the end of the word.

Examples:

cat -> evday 
dog -> uhfay 
eel -> iim

• This is code-golf, so the shortest code wins.


• Case does not matter.


• Vowels that will be used are A, E, I, O, and U

code-golf string cipher

share|improve this question

edited 27 mins ago

u_ndefined

2918

asked 17 hours ago

qazwsx

764

New contributor

qazwsx is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  will we have capital letters in the input?
  – Jo King
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  no, but you can if you want
  – qazwsx
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  Welcome to PPCG! Very nice challenge, clearly presented.
  – Jonathan Allan
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Suggested test case: z → bay
  – Arnauld
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  jot ot e wisz opvisitvoph dupdiqv cav o fu puv vjopl ov jimqt xovj vji ecomovz vu qsupuapdi vji xusftvay
  – Shadow
  8 hours ago
  
  

  
  
  
  

add a comment | 

up vote
15
down vote

favorite

up vote
15
down vote

favorite

The problem with the Caesar cipher is the resulting words are often unpronounceable. The problem with Pig Latin is that it is easy to decode. Why not combine them?

Input

A word consisting of the 26 english letters.

Output

First, change every consonant in the word to the next consonant in the alphabet. So, b goes to c, d goes to f, and z goes to b. Then, change every vowel to the next vowel in the alphabet (u goes to a). Last, only if the first letter of the word is a consonant, move that letter to the end of the word and add "ay" to the end of the word.

Examples:

cat -> evday 
dog -> uhfay 
eel -> iim

• This is code-golf, so the shortest code wins.


• Case does not matter.


• Vowels that will be used are A, E, I, O, and U

code-golf string cipher

share|improve this question

edited 27 mins ago

u_ndefined

2918

asked 17 hours ago

qazwsx

764

New contributor

qazwsx is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

The problem with the Caesar cipher is the resulting words are often unpronounceable. The problem with Pig Latin is that it is easy to decode. Why not combine them?

Input

A word consisting of the 26 english letters.

Output

First, change every consonant in the word to the next consonant in the alphabet. So, b goes to c, d goes to f, and z goes to b. Then, change every vowel to the next vowel in the alphabet (u goes to a). Last, only if the first letter of the word is a consonant, move that letter to the end of the word and add "ay" to the end of the word.

Examples:

cat -> evday 
dog -> uhfay 
eel -> iim

• This is code-golf, so the shortest code wins.


• Case does not matter.


• Vowels that will be used are A, E, I, O, and U

code-golf string cipher

code-golf string cipher

share|improve this question

edited 27 mins ago

u_ndefined

2918

asked 17 hours ago

qazwsx

764

New contributor

qazwsx is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 27 mins ago

u_ndefined

2918

asked 17 hours ago

qazwsx

764

New contributor

qazwsx is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

share|improve this question

edited 27 mins ago

u_ndefined

2918

edited 27 mins ago

u_ndefined

2918

edited 27 mins ago

u_ndefined

2918

2918

asked 17 hours ago

qazwsx

764

New contributor

qazwsx is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 17 hours ago

qazwsx

764

asked 17 hours ago

qazwsx

764

764

New contributor

qazwsx is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

New contributor

qazwsx is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

qazwsx is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  will we have capital letters in the input?
  – Jo King
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  no, but you can if you want
  – qazwsx
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  Welcome to PPCG! Very nice challenge, clearly presented.
  – Jonathan Allan
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Suggested test case: z → bay
  – Arnauld
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  jot ot e wisz opvisitvoph dupdiqv cav o fu puv vjopl ov jimqt xovj vji ecomovz vu qsupuapdi vji xusftvay
  – Shadow
  8 hours ago
  
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  

  
  
  
  
  
  

  
  will we have capital letters in the input?
  – Jo King
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  no, but you can if you want
  – qazwsx
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  Welcome to PPCG! Very nice challenge, clearly presented.
  – Jonathan Allan
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Suggested test case: z → bay
  – Arnauld
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  jot ot e wisz opvisitvoph dupdiqv cav o fu puv vjopl ov jimqt xovj vji ecomovz vu qsupuapdi vji xusftvay
  – Shadow
  8 hours ago
  
  

  
  
  
  

will we have capital letters in the input?
– Jo King
16 hours ago

will we have capital letters in the input?
– Jo King
16 hours ago

2

2

no, but you can if you want
– qazwsx
16 hours ago

no, but you can if you want
– qazwsx
16 hours ago

5

5

Welcome to PPCG! Very nice challenge, clearly presented.
– Jonathan Allan
15 hours ago

Welcome to PPCG! Very nice challenge, clearly presented.
– Jonathan Allan
15 hours ago

1

1

Suggested test case: z → bay
– Arnauld
15 hours ago

Suggested test case: z → bay
– Arnauld
15 hours ago

jot ot e wisz opvisitvoph dupdiqv cav o fu puv vjopl ov jimqt xovj vji ecomovz vu qsupuapdi vji xusftvay
– Shadow
8 hours ago

jot ot e wisz opvisitvoph dupdiqv cav o fu puv vjopl ov jimqt xovj vji ecomovz vu qsupuapdi vji xusftvay
– Shadow
8 hours ago

add a comment | 

10 Answers
10

active

oldest

votes

up vote
3
down vote

05AB1E, 21 bytes

žMDÀ‡žNDÀ‡¬žNsåiÀ…ÿay

Try it online!

Explanation

žMDÀ‡ # replace each vowel with the next vowel in the alphabet
 žNDÀ‡ # replace each consonant with the next consonant in the alphabet
 ¬žNsåi # if the first letter is a consonant
 À…ÿay # rotate the word left and add "ay"

share|improve this answer

answered 16 hours ago

Emigna

43.1k431131

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Dof zua iwis jies vji vsehifz ug Desvj Pmehaiot Tji Woti? I vjuahjv puv. Iv't puv e tvusz vji Jifo xuamf vimm zua. Iv't e Sovj mihipf.
  – qazwsx
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @qazwsx "Did you ever hear the tragedy of Darth Plagueis The Wise? I thought not. It's not a story the Jedi would tell you. It's a Sith legend."
  – Kevin Cruijssen
  6 hours ago
  

  
  
  
  

add a comment | 

up vote
3
down vote

R, 86 bytes

Simple way. chartr has the charming and useful property that it can specify letter ranges, which save a few bytes.

function(s)sub("^([^aeiou])(.*)","\2\1ay",chartr("a-z","ecdfighjok-npuq-tvaw-zb",s))

Try it online!

share|improve this answer

edited 14 hours ago

answered 16 hours ago

J.Doe

7419

add a comment | 

up vote
2
down vote

JavaScript (Node.js), 121 116 bytes

Expects the input string in lower case.

s=>(v=n=>2130466>>n&1)((a=Buffer(s).map(n=>(g=i=>v(n=n%61?n+1:97)^i?g(i):n)(v(n))))[0],a+='')?a:a.slice(1)+a[0]+'ay'

Try it online!

share|improve this answer

edited 14 hours ago

answered 15 hours ago

Arnauld

64.2k580270

add a comment | 

up vote
2
down vote

Retina 0.8.2, 50 bytes

T`uo`aeioub-df-hj-np-tv-zb
^([^aeiou])(.*)
$2$1ay

Try it online! Link includes test cases. Similar approach to the R answer. Explanation:

T`uo`aeioub-df-hj-np-tv-zb

o refers to the other set, i.e. aeioub-df-hj-np-tv-zb, which expands to aeioubcdfghjlkmnpqrstvwxyzb, so uo expands to uaeioubcdfghjlkmnpqrstvwxyzb. This results in the following transliteration:

uaeioubcdfghjlkmnpqrstvwxyzb
aeioubcdfghjlkmnpqrstvwxyzb

The second u and b are ignored as they can never be matched, so this provides the desired cipher. (Note that in Retina 1 you can of course use v instead of aeiou for a 5 byte saving.)

^([^aeiou])(.*)
$2$1ay

If the first letter is not a vowel, rotate it to the end and suffix ay.

share|improve this answer

answered 12 hours ago

Neil

75.3k744170

add a comment | 

up vote
2
down vote

Python 2, 153 121 110 99 bytes

lambda s:''.join('ecdfighjoklmnpuqrstvawxyzb'[ord(c)-97]for c in[s[1:]+s[0]+'ux',s][s[0]in'aeiou'])

Try it online!

share|improve this answer

edited 10 hours ago

answered 15 hours ago

Chas Brown

4,2261319

add a comment | 

up vote
1
down vote

Jelly, 24 bytes

,ṙ¥1y
ØẹçØḄçṙḢe©ØḄƊ®⁾ayx

Try it online!

Saved 1 byte thanks to Jonathan Allan (use the two-char syntax rather than quotes).

share|improve this answer

edited 5 hours ago

answered 15 hours ago

Mr. Xcoder

30.4k758193

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Unfortunately far longer sane, non-sneaky version (1-byte shorter sneaky equivalent). I won't be able to update this within the next few hours, but do point out if you find improvements.
  – Mr. Xcoder
  15 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Use ⁾ay for a byte. The © could go after the e since that is what you are storing. I have ØẹØḄ,żṙ€¥1ẎyṙḢe©ØḄƊ®â¾ayẋ.
  – Jonathan Allan
  11 hours ago
  

  
  
  
  

add a comment | 

up vote
1
down vote

Java (JDK 10), 175 bytes

s->String r="",a="aeiouabcdfghjklmnpqrstvwxyzb";char c=s.charAt(0);if(a.indexOf(c)>5)s=s.substring(1)+c+"ux";for(char d:s.toCharArray())r+=a.charAt(a.indexOf(d)+1);return r;

Try it online!

share|improve this answer

answered 4 hours ago

Olivier Grégoire

7,63111741

add a comment | 

up vote
1
down vote

><>, 94 bytes

i:0(?v84*%
2%?!v~r:5g
37r}<vr*46*
ol?!;>4g
 ecdfighjoklmnpuqrstvawxyzb
 1 1 1 1 1

Try it online!

share|improve this answer

edited 3 hours ago

answered 3 hours ago

Sok

2,871722

add a comment | 

up vote
1
down vote

Ruby, 96 69 bytes

->s/^[^aeiou]/=~(r=s.tr'zb-yadehinotu','b-zefijopuva')?$'+$&+'ay':r

Try it online!

Fun fact of the day: tr() matches strings right-to-left. I always assumed it was left-to-right.

share|improve this answer

edited 1 hour ago

answered 1 hour ago

G B

6,4071324

add a comment | 

up vote
0
down vote

Red, 149 bytes

func[s][c:"aeioua.bcdfghjklmnpqrstvwxyzb"t: copy""foreach p s[append t c/(1
+ index? find c p)]if 7 < index? find c t/1[move t tail t append t"ay"]t]

Try it online!

As (almost) always, the longest entry

share|improve this answer

answered 4 hours ago

Galen Ivanov

4,7871829

add a comment | 

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10 Answers
10

active

oldest

votes

10 Answers
10

active

oldest

votes

active

oldest

votes

active

oldest

votes

up vote
3
down vote

05AB1E, 21 bytes

žMDÀ‡žNDÀ‡¬žNsåiÀ…ÿay

Try it online!

Explanation

žMDÀ‡ # replace each vowel with the next vowel in the alphabet
 žNDÀ‡ # replace each consonant with the next consonant in the alphabet
 ¬žNsåi # if the first letter is a consonant
 À…ÿay # rotate the word left and add "ay"

share|improve this answer

answered 16 hours ago

Emigna

43.1k431131

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Dof zua iwis jies vji vsehifz ug Desvj Pmehaiot Tji Woti? I vjuahjv puv. Iv't puv e tvusz vji Jifo xuamf vimm zua. Iv't e Sovj mihipf.
  – qazwsx
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @qazwsx "Did you ever hear the tragedy of Darth Plagueis The Wise? I thought not. It's not a story the Jedi would tell you. It's a Sith legend."
  – Kevin Cruijssen
  6 hours ago
  

  
  
  
  

add a comment | 

up vote
3
down vote

05AB1E, 21 bytes

žMDÀ‡žNDÀ‡¬žNsåiÀ…ÿay

Try it online!

Explanation

žMDÀ‡ # replace each vowel with the next vowel in the alphabet
 žNDÀ‡ # replace each consonant with the next consonant in the alphabet
 ¬žNsåi # if the first letter is a consonant
 À…ÿay # rotate the word left and add "ay"

share|improve this answer

answered 16 hours ago

Emigna

43.1k431131

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Dof zua iwis jies vji vsehifz ug Desvj Pmehaiot Tji Woti? I vjuahjv puv. Iv't puv e tvusz vji Jifo xuamf vimm zua. Iv't e Sovj mihipf.
  – qazwsx
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @qazwsx "Did you ever hear the tragedy of Darth Plagueis The Wise? I thought not. It's not a story the Jedi would tell you. It's a Sith legend."
  – Kevin Cruijssen
  6 hours ago
  

  
  
  
  

add a comment | 

up vote
3
down vote

up vote
3
down vote

05AB1E, 21 bytes

žMDÀ‡žNDÀ‡¬žNsåiÀ…ÿay

Try it online!

Explanation

žMDÀ‡ # replace each vowel with the next vowel in the alphabet
 žNDÀ‡ # replace each consonant with the next consonant in the alphabet
 ¬žNsåi # if the first letter is a consonant
 À…ÿay # rotate the word left and add "ay"

share|improve this answer

answered 16 hours ago

Emigna

43.1k431131

05AB1E, 21 bytes

žMDÀ‡žNDÀ‡¬žNsåiÀ…ÿay

Try it online!

Explanation

žMDÀ‡ # replace each vowel with the next vowel in the alphabet
 žNDÀ‡ # replace each consonant with the next consonant in the alphabet
 ¬žNsåi # if the first letter is a consonant
 À…ÿay # rotate the word left and add "ay"

share|improve this answer

answered 16 hours ago

Emigna

43.1k431131

share|improve this answer

share|improve this answer

answered 16 hours ago

Emigna

43.1k431131

answered 16 hours ago

Emigna

43.1k431131

answered 16 hours ago

Emigna

43.1k431131

43.1k431131

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Dof zua iwis jies vji vsehifz ug Desvj Pmehaiot Tji Woti? I vjuahjv puv. Iv't puv e tvusz vji Jifo xuamf vimm zua. Iv't e Sovj mihipf.
  – qazwsx
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @qazwsx "Did you ever hear the tragedy of Darth Plagueis The Wise? I thought not. It's not a story the Jedi would tell you. It's a Sith legend."
  – Kevin Cruijssen
  6 hours ago
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  Dof zua iwis jies vji vsehifz ug Desvj Pmehaiot Tji Woti? I vjuahjv puv. Iv't puv e tvusz vji Jifo xuamf vimm zua. Iv't e Sovj mihipf.
  – qazwsx
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  @qazwsx "Did you ever hear the tragedy of Darth Plagueis The Wise? I thought not. It's not a story the Jedi would tell you. It's a Sith legend."
  – Kevin Cruijssen
  6 hours ago
  

  
  
  
  

1

1

Dof zua iwis jies vji vsehifz ug Desvj Pmehaiot Tji Woti? I vjuahjv puv. Iv't puv e tvusz vji Jifo xuamf vimm zua. Iv't e Sovj mihipf.
– qazwsx
16 hours ago

Dof zua iwis jies vji vsehifz ug Desvj Pmehaiot Tji Woti? I vjuahjv puv. Iv't puv e tvusz vji Jifo xuamf vimm zua. Iv't e Sovj mihipf.
– qazwsx
16 hours ago

@qazwsx "Did you ever hear the tragedy of Darth Plagueis The Wise? I thought not. It's not a story the Jedi would tell you. It's a Sith legend."
– Kevin Cruijssen
6 hours ago

@qazwsx "Did you ever hear the tragedy of Darth Plagueis The Wise? I thought not. It's not a story the Jedi would tell you. It's a Sith legend."
– Kevin Cruijssen
6 hours ago

add a comment | 

up vote
3
down vote

R, 86 bytes

Simple way. chartr has the charming and useful property that it can specify letter ranges, which save a few bytes.

function(s)sub("^([^aeiou])(.*)","\2\1ay",chartr("a-z","ecdfighjok-npuq-tvaw-zb",s))

Try it online!

share|improve this answer

edited 14 hours ago

answered 16 hours ago

J.Doe

7419

add a comment | 

up vote
3
down vote

R, 86 bytes

Simple way. chartr has the charming and useful property that it can specify letter ranges, which save a few bytes.

function(s)sub("^([^aeiou])(.*)","\2\1ay",chartr("a-z","ecdfighjok-npuq-tvaw-zb",s))

Try it online!

share|improve this answer

edited 14 hours ago

answered 16 hours ago

J.Doe

7419

add a comment | 

up vote
3
down vote

up vote
3
down vote

R, 86 bytes

Simple way. chartr has the charming and useful property that it can specify letter ranges, which save a few bytes.

function(s)sub("^([^aeiou])(.*)","\2\1ay",chartr("a-z","ecdfighjok-npuq-tvaw-zb",s))

Try it online!

share|improve this answer

edited 14 hours ago

answered 16 hours ago

J.Doe

7419

R, 86 bytes

Simple way. chartr has the charming and useful property that it can specify letter ranges, which save a few bytes.

function(s)sub("^([^aeiou])(.*)","\2\1ay",chartr("a-z","ecdfighjok-npuq-tvaw-zb",s))

Try it online!

share|improve this answer

edited 14 hours ago

answered 16 hours ago

J.Doe

7419

share|improve this answer

share|improve this answer

edited 14 hours ago

edited 14 hours ago

edited 14 hours ago

answered 16 hours ago

J.Doe

7419

answered 16 hours ago

J.Doe

7419

answered 16 hours ago

J.Doe

7419

7419

add a comment | 

add a comment | 

up vote
2
down vote

JavaScript (Node.js), 121 116 bytes

Expects the input string in lower case.

s=>(v=n=>2130466>>n&1)((a=Buffer(s).map(n=>(g=i=>v(n=n%61?n+1:97)^i?g(i):n)(v(n))))[0],a+='')?a:a.slice(1)+a[0]+'ay'

Try it online!

share|improve this answer

edited 14 hours ago

answered 15 hours ago

Arnauld

64.2k580270

add a comment | 

up vote
2
down vote

JavaScript (Node.js), 121 116 bytes

Expects the input string in lower case.

s=>(v=n=>2130466>>n&1)((a=Buffer(s).map(n=>(g=i=>v(n=n%61?n+1:97)^i?g(i):n)(v(n))))[0],a+='')?a:a.slice(1)+a[0]+'ay'

Try it online!

share|improve this answer

edited 14 hours ago

answered 15 hours ago

Arnauld

64.2k580270

add a comment | 

up vote
2
down vote

up vote
2
down vote

JavaScript (Node.js), 121 116 bytes

Expects the input string in lower case.

s=>(v=n=>2130466>>n&1)((a=Buffer(s).map(n=>(g=i=>v(n=n%61?n+1:97)^i?g(i):n)(v(n))))[0],a+='')?a:a.slice(1)+a[0]+'ay'

Try it online!

share|improve this answer

edited 14 hours ago

answered 15 hours ago

Arnauld

64.2k580270

JavaScript (Node.js), 121 116 bytes

Expects the input string in lower case.

s=>(v=n=>2130466>>n&1)((a=Buffer(s).map(n=>(g=i=>v(n=n%61?n+1:97)^i?g(i):n)(v(n))))[0],a+='')?a:a.slice(1)+a[0]+'ay'

Try it online!

share|improve this answer

edited 14 hours ago

answered 15 hours ago

Arnauld

64.2k580270

share|improve this answer

share|improve this answer

edited 14 hours ago

edited 14 hours ago

edited 14 hours ago

answered 15 hours ago

Arnauld

64.2k580270

answered 15 hours ago

Arnauld

64.2k580270

answered 15 hours ago

Arnauld

64.2k580270

64.2k580270

add a comment | 

add a comment | 

up vote
2
down vote

Retina 0.8.2, 50 bytes

T`uo`aeioub-df-hj-np-tv-zb
^([^aeiou])(.*)
$2$1ay

Try it online! Link includes test cases. Similar approach to the R answer. Explanation:

T`uo`aeioub-df-hj-np-tv-zb

o refers to the other set, i.e. aeioub-df-hj-np-tv-zb, which expands to aeioubcdfghjlkmnpqrstvwxyzb, so uo expands to uaeioubcdfghjlkmnpqrstvwxyzb. This results in the following transliteration:

uaeioubcdfghjlkmnpqrstvwxyzb
aeioubcdfghjlkmnpqrstvwxyzb

The second u and b are ignored as they can never be matched, so this provides the desired cipher. (Note that in Retina 1 you can of course use v instead of aeiou for a 5 byte saving.)

^([^aeiou])(.*)
$2$1ay

If the first letter is not a vowel, rotate it to the end and suffix ay.

share|improve this answer

answered 12 hours ago

Neil

75.3k744170

add a comment | 

up vote
2
down vote

Retina 0.8.2, 50 bytes

T`uo`aeioub-df-hj-np-tv-zb
^([^aeiou])(.*)
$2$1ay

Try it online! Link includes test cases. Similar approach to the R answer. Explanation:

T`uo`aeioub-df-hj-np-tv-zb

o refers to the other set, i.e. aeioub-df-hj-np-tv-zb, which expands to aeioubcdfghjlkmnpqrstvwxyzb, so uo expands to uaeioubcdfghjlkmnpqrstvwxyzb. This results in the following transliteration:

uaeioubcdfghjlkmnpqrstvwxyzb
aeioubcdfghjlkmnpqrstvwxyzb

The second u and b are ignored as they can never be matched, so this provides the desired cipher. (Note that in Retina 1 you can of course use v instead of aeiou for a 5 byte saving.)

^([^aeiou])(.*)
$2$1ay

If the first letter is not a vowel, rotate it to the end and suffix ay.

share|improve this answer

answered 12 hours ago

Neil

75.3k744170

add a comment | 

up vote
2
down vote

up vote
2
down vote

Retina 0.8.2, 50 bytes

T`uo`aeioub-df-hj-np-tv-zb
^([^aeiou])(.*)
$2$1ay

Try it online! Link includes test cases. Similar approach to the R answer. Explanation:

T`uo`aeioub-df-hj-np-tv-zb

o refers to the other set, i.e. aeioub-df-hj-np-tv-zb, which expands to aeioubcdfghjlkmnpqrstvwxyzb, so uo expands to uaeioubcdfghjlkmnpqrstvwxyzb. This results in the following transliteration:

uaeioubcdfghjlkmnpqrstvwxyzb
aeioubcdfghjlkmnpqrstvwxyzb

The second u and b are ignored as they can never be matched, so this provides the desired cipher. (Note that in Retina 1 you can of course use v instead of aeiou for a 5 byte saving.)

^([^aeiou])(.*)
$2$1ay

If the first letter is not a vowel, rotate it to the end and suffix ay.

share|improve this answer

answered 12 hours ago

Neil

75.3k744170

Retina 0.8.2, 50 bytes

T`uo`aeioub-df-hj-np-tv-zb
^([^aeiou])(.*)
$2$1ay

Try it online! Link includes test cases. Similar approach to the R answer. Explanation:

T`uo`aeioub-df-hj-np-tv-zb

o refers to the other set, i.e. aeioub-df-hj-np-tv-zb, which expands to aeioubcdfghjlkmnpqrstvwxyzb, so uo expands to uaeioubcdfghjlkmnpqrstvwxyzb. This results in the following transliteration:

uaeioubcdfghjlkmnpqrstvwxyzb
aeioubcdfghjlkmnpqrstvwxyzb

The second u and b are ignored as they can never be matched, so this provides the desired cipher. (Note that in Retina 1 you can of course use v instead of aeiou for a 5 byte saving.)

^([^aeiou])(.*)
$2$1ay

If the first letter is not a vowel, rotate it to the end and suffix ay.

share|improve this answer

answered 12 hours ago

Neil

75.3k744170

share|improve this answer

share|improve this answer

answered 12 hours ago

Neil

75.3k744170

answered 12 hours ago

Neil

75.3k744170

answered 12 hours ago

Neil

75.3k744170

75.3k744170

add a comment | 

add a comment | 

up vote
2
down vote

Python 2, 153 121 110 99 bytes

lambda s:''.join('ecdfighjoklmnpuqrstvawxyzb'[ord(c)-97]for c in[s[1:]+s[0]+'ux',s][s[0]in'aeiou'])

Try it online!

share|improve this answer

edited 10 hours ago

answered 15 hours ago

Chas Brown

4,2261319

add a comment | 

up vote
2
down vote

Python 2, 153 121 110 99 bytes

lambda s:''.join('ecdfighjoklmnpuqrstvawxyzb'[ord(c)-97]for c in[s[1:]+s[0]+'ux',s][s[0]in'aeiou'])

Try it online!

share|improve this answer

edited 10 hours ago

answered 15 hours ago

Chas Brown

4,2261319

add a comment | 

up vote
2
down vote

up vote
2
down vote

Python 2, 153 121 110 99 bytes

lambda s:''.join('ecdfighjoklmnpuqrstvawxyzb'[ord(c)-97]for c in[s[1:]+s[0]+'ux',s][s[0]in'aeiou'])

Try it online!

share|improve this answer

edited 10 hours ago

answered 15 hours ago

Chas Brown

4,2261319

Python 2, 153 121 110 99 bytes

lambda s:''.join('ecdfighjoklmnpuqrstvawxyzb'[ord(c)-97]for c in[s[1:]+s[0]+'ux',s][s[0]in'aeiou'])

Try it online!

share|improve this answer

edited 10 hours ago

answered 15 hours ago

Chas Brown

4,2261319

share|improve this answer

share|improve this answer

edited 10 hours ago

edited 10 hours ago

edited 10 hours ago

answered 15 hours ago

Chas Brown

4,2261319

answered 15 hours ago

Chas Brown

4,2261319

answered 15 hours ago

Chas Brown

4,2261319

4,2261319

add a comment | 

add a comment | 

up vote
1
down vote

Jelly, 24 bytes

,ṙ¥1y
ØẹçØḄçṙḢe©ØḄƊ®⁾ayx

Try it online!

Saved 1 byte thanks to Jonathan Allan (use the two-char syntax rather than quotes).

share|improve this answer

edited 5 hours ago

answered 15 hours ago

Mr. Xcoder

30.4k758193

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Unfortunately far longer sane, non-sneaky version (1-byte shorter sneaky equivalent). I won't be able to update this within the next few hours, but do point out if you find improvements.
  – Mr. Xcoder
  15 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Use ⁾ay for a byte. The © could go after the e since that is what you are storing. I have ØẹØḄ,żṙ€¥1ẎyṙḢe©ØḄƊ®â¾ayẋ.
  – Jonathan Allan
  11 hours ago
  

  
  
  
  

add a comment | 

up vote
1
down vote

Jelly, 24 bytes

,ṙ¥1y
ØẹçØḄçṙḢe©ØḄƊ®⁾ayx

Try it online!

Saved 1 byte thanks to Jonathan Allan (use the two-char syntax rather than quotes).

share|improve this answer

edited 5 hours ago

answered 15 hours ago

Mr. Xcoder

30.4k758193

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Unfortunately far longer sane, non-sneaky version (1-byte shorter sneaky equivalent). I won't be able to update this within the next few hours, but do point out if you find improvements.
  – Mr. Xcoder
  15 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Use ⁾ay for a byte. The © could go after the e since that is what you are storing. I have ØẹØḄ,żṙ€¥1ẎyṙḢe©ØḄƊ®â¾ayẋ.
  – Jonathan Allan
  11 hours ago
  

  
  
  
  

add a comment | 

up vote
1
down vote

up vote
1
down vote

Jelly, 24 bytes

,ṙ¥1y
ØẹçØḄçṙḢe©ØḄƊ®⁾ayx

Try it online!

Saved 1 byte thanks to Jonathan Allan (use the two-char syntax rather than quotes).

share|improve this answer

edited 5 hours ago

answered 15 hours ago

Mr. Xcoder

30.4k758193

Jelly, 24 bytes

,ṙ¥1y
ØẹçØḄçṙḢe©ØḄƊ®⁾ayx

Try it online!

Saved 1 byte thanks to Jonathan Allan (use the two-char syntax rather than quotes).

share|improve this answer

edited 5 hours ago

answered 15 hours ago

Mr. Xcoder

30.4k758193

share|improve this answer

share|improve this answer

edited 5 hours ago

edited 5 hours ago

edited 5 hours ago

answered 15 hours ago

Mr. Xcoder

30.4k758193

answered 15 hours ago

Mr. Xcoder

30.4k758193

answered 15 hours ago

Mr. Xcoder

30.4k758193

30.4k758193

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Unfortunately far longer sane, non-sneaky version (1-byte shorter sneaky equivalent). I won't be able to update this within the next few hours, but do point out if you find improvements.
  – Mr. Xcoder
  15 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Use ⁾ay for a byte. The © could go after the e since that is what you are storing. I have ØẹØḄ,żṙ€¥1ẎyṙḢe©ØḄƊ®â¾ayẋ.
  – Jonathan Allan
  11 hours ago
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Unfortunately far longer sane, non-sneaky version (1-byte shorter sneaky equivalent). I won't be able to update this within the next few hours, but do point out if you find improvements.
  – Mr. Xcoder
  15 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Use ⁾ay for a byte. The © could go after the e since that is what you are storing. I have ØẹØḄ,żṙ€¥1ẎyṙḢe©ØḄƊ®â¾ayẋ.
  – Jonathan Allan
  11 hours ago
  

  
  
  
  

Unfortunately far longer sane, non-sneaky version (1-byte shorter sneaky equivalent). I won't be able to update this within the next few hours, but do point out if you find improvements.
– Mr. Xcoder
15 hours ago

Unfortunately far longer sane, non-sneaky version (1-byte shorter sneaky equivalent). I won't be able to update this within the next few hours, but do point out if you find improvements.
– Mr. Xcoder
15 hours ago

Use ⁾ay for a byte. The © could go after the e since that is what you are storing. I have ØẹØḄ,żṙ€¥1ẎyṙḢe©ØḄƊ®â¾ayẋ.
– Jonathan Allan
11 hours ago

Use ⁾ay for a byte. The © could go after the e since that is what you are storing. I have ØẹØḄ,żṙ€¥1ẎyṙḢe©ØḄƊ®â¾ayẋ.
– Jonathan Allan
11 hours ago

add a comment | 

up vote
1
down vote

Java (JDK 10), 175 bytes

s->String r="",a="aeiouabcdfghjklmnpqrstvwxyzb";char c=s.charAt(0);if(a.indexOf(c)>5)s=s.substring(1)+c+"ux";for(char d:s.toCharArray())r+=a.charAt(a.indexOf(d)+1);return r;

Try it online!

share|improve this answer

answered 4 hours ago

Olivier Grégoire

7,63111741

add a comment | 

up vote
1
down vote

Java (JDK 10), 175 bytes

s->String r="",a="aeiouabcdfghjklmnpqrstvwxyzb";char c=s.charAt(0);if(a.indexOf(c)>5)s=s.substring(1)+c+"ux";for(char d:s.toCharArray())r+=a.charAt(a.indexOf(d)+1);return r;

Try it online!

share|improve this answer

answered 4 hours ago

Olivier Grégoire

7,63111741

add a comment | 

up vote
1
down vote

up vote
1
down vote

Java (JDK 10), 175 bytes

s->String r="",a="aeiouabcdfghjklmnpqrstvwxyzb";char c=s.charAt(0);if(a.indexOf(c)>5)s=s.substring(1)+c+"ux";for(char d:s.toCharArray())r+=a.charAt(a.indexOf(d)+1);return r;

Try it online!

share|improve this answer

answered 4 hours ago

Olivier Grégoire

7,63111741

Java (JDK 10), 175 bytes

s->String r="",a="aeiouabcdfghjklmnpqrstvwxyzb";char c=s.charAt(0);if(a.indexOf(c)>5)s=s.substring(1)+c+"ux";for(char d:s.toCharArray())r+=a.charAt(a.indexOf(d)+1);return r;

Try it online!

share|improve this answer

answered 4 hours ago

Olivier Grégoire

7,63111741

share|improve this answer

share|improve this answer

answered 4 hours ago

Olivier Grégoire

7,63111741

answered 4 hours ago

Olivier Grégoire

7,63111741

answered 4 hours ago

Olivier Grégoire

7,63111741

7,63111741

add a comment | 

add a comment | 

up vote
1
down vote

><>, 94 bytes

i:0(?v84*%
2%?!v~r:5g
37r}<vr*46*
ol?!;>4g
 ecdfighjoklmnpuqrstvawxyzb
 1 1 1 1 1

Try it online!

share|improve this answer

edited 3 hours ago

answered 3 hours ago

Sok

2,871722

add a comment | 

up vote
1
down vote

><>, 94 bytes

i:0(?v84*%
2%?!v~r:5g
37r}<vr*46*
ol?!;>4g
 ecdfighjoklmnpuqrstvawxyzb
 1 1 1 1 1

Try it online!

share|improve this answer

edited 3 hours ago

answered 3 hours ago

Sok

2,871722

add a comment | 

up vote
1
down vote

up vote
1
down vote

><>, 94 bytes

i:0(?v84*%
2%?!v~r:5g
37r}<vr*46*
ol?!;>4g
 ecdfighjoklmnpuqrstvawxyzb
 1 1 1 1 1

Try it online!

share|improve this answer

edited 3 hours ago

answered 3 hours ago

Sok

2,871722

><>, 94 bytes

i:0(?v84*%
2%?!v~r:5g
37r}<vr*46*
ol?!;>4g
 ecdfighjoklmnpuqrstvawxyzb
 1 1 1 1 1

Try it online!

share|improve this answer

edited 3 hours ago

answered 3 hours ago

Sok

2,871722

share|improve this answer

share|improve this answer

edited 3 hours ago

edited 3 hours ago

edited 3 hours ago

answered 3 hours ago

Sok

2,871722

answered 3 hours ago

Sok

2,871722

answered 3 hours ago

Sok

2,871722

2,871722

add a comment | 

add a comment | 

up vote
1
down vote

Ruby, 96 69 bytes

->s/^[^aeiou]/=~(r=s.tr'zb-yadehinotu','b-zefijopuva')?$'+$&+'ay':r

Try it online!

Fun fact of the day: tr() matches strings right-to-left. I always assumed it was left-to-right.

share|improve this answer

edited 1 hour ago

answered 1 hour ago

G B

6,4071324

add a comment | 

up vote
1
down vote

Ruby, 96 69 bytes

->s/^[^aeiou]/=~(r=s.tr'zb-yadehinotu','b-zefijopuva')?$'+$&+'ay':r

Try it online!

Fun fact of the day: tr() matches strings right-to-left. I always assumed it was left-to-right.

share|improve this answer

edited 1 hour ago

answered 1 hour ago

G B

6,4071324

add a comment | 

up vote
1
down vote

up vote
1
down vote

Ruby, 96 69 bytes

->s/^[^aeiou]/=~(r=s.tr'zb-yadehinotu','b-zefijopuva')?$'+$&+'ay':r

Try it online!

Fun fact of the day: tr() matches strings right-to-left. I always assumed it was left-to-right.

share|improve this answer

edited 1 hour ago

answered 1 hour ago

G B

6,4071324

Ruby, 96 69 bytes

->s/^[^aeiou]/=~(r=s.tr'zb-yadehinotu','b-zefijopuva')?$'+$&+'ay':r

Try it online!

Fun fact of the day: tr() matches strings right-to-left. I always assumed it was left-to-right.

share|improve this answer

edited 1 hour ago

answered 1 hour ago

G B

6,4071324

share|improve this answer

share|improve this answer

edited 1 hour ago

edited 1 hour ago

edited 1 hour ago

answered 1 hour ago

G B

6,4071324

answered 1 hour ago

G B

6,4071324

answered 1 hour ago

G B

6,4071324

6,4071324

add a comment | 

add a comment | 

up vote
0
down vote

Red, 149 bytes

func[s][c:"aeioua.bcdfghjklmnpqrstvwxyzb"t: copy""foreach p s[append t c/(1
+ index? find c p)]if 7 < index? find c t/1[move t tail t append t"ay"]t]

Try it online!

As (almost) always, the longest entry

share|improve this answer

answered 4 hours ago

Galen Ivanov

4,7871829

add a comment | 

up vote
0
down vote

Red, 149 bytes

func[s][c:"aeioua.bcdfghjklmnpqrstvwxyzb"t: copy""foreach p s[append t c/(1
+ index? find c p)]if 7 < index? find c t/1[move t tail t append t"ay"]t]

Try it online!

As (almost) always, the longest entry

share|improve this answer

answered 4 hours ago

Galen Ivanov

4,7871829

add a comment | 

up vote
0
down vote

up vote
0
down vote

Red, 149 bytes

func[s][c:"aeioua.bcdfghjklmnpqrstvwxyzb"t: copy""foreach p s[append t c/(1
+ index? find c p)]if 7 < index? find c t/1[move t tail t append t"ay"]t]

Try it online!

As (almost) always, the longest entry

share|improve this answer

answered 4 hours ago

Galen Ivanov

4,7871829

Red, 149 bytes

func[s][c:"aeioua.bcdfghjklmnpqrstvwxyzb"t: copy""foreach p s[append t c/(1
+ index? find c p)]if 7 < index? find c t/1[move t tail t append t"ay"]t]

Try it online!

As (almost) always, the longest entry

share|improve this answer

answered 4 hours ago

Galen Ivanov

4,7871829

share|improve this answer

share|improve this answer

answered 4 hours ago

Galen Ivanov

4,7871829

answered 4 hours ago

Galen Ivanov

4,7871829

answered 4 hours ago

Galen Ivanov

4,7871829

4,7871829

add a comment | 

add a comment | 

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qazwsx is a new contributor. Be nice, and check out our Code of Conduct.

 

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