c$++$

$14\mathrm{.}20$ Homework$7$ P$3$: Authoring assistant

$(1)$ Prompt the user to enter a string of their choosing. Store the text in a string. Output the string.

Ex:

Enter a sample text:

we'll continue our quest in space. there will be more shuttle flights and more shuttle crews and, yes, more volunteers, more civilians, more teachers in space. nothing ends here; our hopes and our journeys continue!

You entered: we'll continue our quest in space. there will be more shuttle flights and more shuttle crews and, yes, more volunteers, more civilians, more teachers in space. nothing ends here; our hopes and our journeys continue!

$(2)$ Implement the PrintMenu$()$ function to print the following command menu.

Ex:

MENU

c $-$ Number of non$-$whitespace characters

w $-$ Number of words

f $-$ Fix capitalization

r $-$ Replace all $!\text{'}$s

q $-$ Quit

$(3)$ Implement the ExecuteMenu$()$ function that takes $2$ parameters: a character representing the user's choice and the user provided sample text. ExecuteMenu$()$ performs the menu options, according to the user's choice, by calling the appropriate functions described below.

$(4)$ In the main$()$ function, call PrintMenu$()$ and prompt for the user's choice of menu options for analyzing$/$editing the string. Each option is represented by a single character.

If an invalid character is entered, continue to prompt for a valid choice. When a valid option is entered, execute the option by calling ExecuteMenu$().$ Then, print the menu, and prompt for a new option. Continue until the user enters $\text{'}$q$\text{'}.$ Hint: Implement Quit before implementing other options.