Display menu options

Ask the user to select an option

Switch on option

case s :

Call a function to:

search the specified string in the worked on string

if found, display its index in the worked on string

otherwise display $$not found$$

case a:

Call a function to:

Append the specified string at the end of the worked on string

ifDisplay the updated string

case i:

Call a function to:

Validate the specified insert index for valid range.

If invalid, display notification message.

Otherwise, insert the specified string at the specified index

case d:

Call a function to:

Search for the string to be deleted.

If found, remove it from the worked on string

Otherwise, display $$not found$$

case r:

Call a function to:

Search for the string to be replaced

If found, replace it with the replacing string

Otherwise, display $$String to be replaced, Not found$$

case e:

end the program.

IMPLEMENTATION

Use the following c library functions:

strlen

strcpy

strcat

strncmp

NOTE: strcpy and strcat functions have updated versions. You need to worry only about the naming of the functions as given below. The parameter list is the same. Most compilers will let you use the old versions but Visual Studio will suggest the new versions:

strcpy $----->$ strcpy$\_$s

strcat $=====>$ strcat$\_$s

Use the following user provided functions:

int search $($char sourceString $[],$ char targetString $[])$

$\{$

$/*$

The function below will take a source string and a target string. It will search for the target string in the

source string. If the string is found, it will return its index in the source string. Otherwise, it will return $-1$

In each pass through the loop, it starts at a different index in the source string

and compares it with the target string.

In the first pass, it starts at index $0$ in sourceString and compares it with targetString.

In the second pass, it starts at index $1$ in sourceString and compares it with targetString

and so on$.$

If it finds a match, it breaks out of the loop and returns the index of the sourceString where

the match was found,

otherwise it returns $-1($the value at which the index was initializ