Sample Output:

Encode text

Decode text

Exit

Please select an option between $1$ and $3$:$1$

Please enter the text to encode: My horse is angry. She will heart a carrot.

Encoded text: My is $$ She will a

Encode text

Decode text

Exit

Please select an option between $1$ and $3$:$3\mathrm{.}1$

Please select a valid option between $1$ and $3.$

Encode text

Decode text

Exit

Please select an option between $1$ and $3$:$2$

Please enter the text to decode: My $3$ is $3?$he will a

Decoded text: My horse is angry. She will heart a carrot.If after going through the whole input list, match$\_$found is False

Add the original word at word$\_$index to the encrypted string

Assignment $2$: Secret Codes $($Arrays & Functions$)$

Assignment for COSC $1100$ Intro to Programming

Page $2$ of $3$

Requirements for the Cipher Functions:

In this case, we will be using a cipher to translate a message to or from emoji. A Substitution cipher is a very simple type of cipher that operates by replacing characters or words from one form of communication with those from another. In our case, we will convert from English letters into emoji. Your encode and decode functions will each have one parameter, which is the message to be translated.

English

Unicode

Emoji

English

Unicode

Emoji

English

Unicode

Emoji

$100(100\%)$

U$+1$F$4$AF

$$

cat

U$+1$F$408$

$$

horse

U$+1$F$40$E

$$

angry $($mad$)$

U$+1$F$620$

$$

clap

U$+1$F$44$F

$$

map

U$+1$F$5$FA

$$

alien

U$+1$F$47$D

$$

cookie

cow

U$+1$F$36$A

$$

$$

OK $($okay$)$

U$+1$F$44$C

$$

apple

U$+1$F$34$E

$$

dog

U$+1$F$415$

$$

sad

U$+1$F$622$

$$

banana

U$+1$F$34$C

$$

egg

elephant

U$+1$F$95$A

$$

$$

sheep

$($ewe$)$

U$+1$F$411$

$$

bee

U$+1$F$41$D

$$

fish

U$+1$F$41$F

$$

sleep

$($bed$)$

U$+1$F$6$CC

$$

bird

U$+1$F$426$

$$

fox

U$+1$F$98$A

$$

tree

U$+1$F$332$

$$

car

U$+1$F$697$

$$

happy

U$+1$F$600$

$$

wave

U$+1$F$44$B

$$

carrot

U$+1$F$955$

$$

heart

U$+2764$

$$

zombie

U$+1$F$9$DF

$$

For your assignment submission, please limit the words to translate to those included above, which were chosen intentionally by this course$$s professors. However, if you$$d like to extend things somewhat, you can include the secondary words like $($mad$)$ and $($okay$)$ that are shown in parentheses in the chart.

There are many ways to implement this in Python, but probably the easiest way for our needs would be to declare two arrays: one includes a list of words, and the other includes the emoji equivalents of those words. Then, given a message, for each word, if that word is in the first array, match that word$$s position in the first array with the same position in the second array. Ensure that the translation happens regardless of case.

Here is some partial pseudocode for the encode function that you can make use of:

Start with an empty string called encoded$\_$string

Use the $.$split$()$ method to turn the input message into a list of words For each word$\_$index, counting up from $0$ to the length of the input word list

Assume that there is no match found $($match$\_$found $=$ False$)$

For each translation$\_$index in the emoji word list

If the word at word$\_$index equals the input word at translation$\_$index

Add the emoji at translation$\_$index to the encoded$\_$string Set match$\_$found to True

If after going through the whole input list, match$\_$found is False

Add the original word at word$\_$index to the encrypted stringEven perfectly translated into Python, the output from this may not be perfect and troubleshooting the differences in how the input displays is intentionally left as an exercise.

Style Guide:

To be eligible for full marks on this or any assignment in this course your application must conform to the requirements as outlined above as well as our prescribed style guide, in this case making sure to observe the PEP$8$ naming conventions for Python as well as appropriate and complete program documentation.

Development Hints:

$$ As always, start with your planning steps. The pseudocode shown above may be part of the process and plan $($steps $3$ and $4$ of $10).$

$$ Only after planning, consider how you can $$translate$$ the given pseudocode into Python code.

$$ Ciphers are a very common programming exercise and thus there are numerous reference materials and possibly even full solutions available on the web. However, be cautious with these!

o Make sure any $$borrowed$$ code works and that your program actually meets our requirements.

o Make sure all code in your program conforms to our PEP$8$ style guide.

o Reference any code directly taken from any form of online resource or another person, or this will be considered an incident of plagiarism. You can just do this in a comment before the part you have taken from another source.

Please make a Plan $($output$,$ input$)$ and pseoudocode