(1) Print the following menu that shows character sequence operations and read t
ID: 3693636 • Letter: #
Question
(1) Print the following menu that shows character sequence operations and read the user's operation choice.
Implement the following function to print the menu:
int user_menu(void);
the function prints the menu and returns back the user's operation choice.
(2) If the user enters 0 (i.e., user_menu() function call returns 0), then exit the program.
(3) Else if ccs is NULL and user enters an operation other than (1), warn the user that (s)he must first enter a character sequence to operate on.
Then, go to step (1)
(4) Else if the operation selection is (1), then ask for the ccs:
Note that you have to allocate memory space JUST ENOUGH to store entered character sequence, as described above. Implement the following function to ask and set the ccs:
int set_ccs(char **ccs)
The function returns the number of bytes that is allocated to store ccs. If the allocation is unsuccessful, then it returns -1.
After setting the ccs, go to step (1).
0: Exit the program 1: Set Current Character Sequence 2: Get Substring 3: Remove Substring 4: Insert 5: Replace
Enter CCS:
(5) Else if the operation selection is (2), then ask for the beginning and end character indexes to get the substring:
Implement the following function prototype for this operation:
char *sub_string (char *ccs, int begin_index, int end_index)
Note that begin_index and end_index are both INCLUSIVE and indexing starts from 0. That is, the characters at locations begin_index and end_index must be included in the substring.
If the begin/end indexes are out of ccs bounds, then function does nothing and returns NULL. Otherwise, the function allocates JUST ENOUGH space for the substring, copies the substring into the allocated space, and returns back the substring.
You have to print out the substring as well as the ccs after calling this function. After print-out don't forget to free allocated space for the returned substring.
Afterwards, go to step (1) and print the menu again.
(6) Else if the operation selection is (3), then ask for the beginning and end character indexes for removing the substring:
Implement the following function prototype for this operation:
char *remove_string(char **ccs, int begin_index, int end_index)
Note that begin_index and end_index are both INCLUSIVE and indexing starts from 0. That is, the characters at locations begin_index and end_index must be removed from the ccs.
If the begin/end indexes are out of ccs bounds, then function does nothing and returns NULL. Otherwise, the function allocates JUST ENOUGH space for the removed string, move the characters into allocated space, reallocates the ccs by the new string length, and returns back the removed ccs substring.
You have to print out the removed-string as well as the ccs after calling this function. After print-out don't forget to free allocated space for the returned remove string.
Afterwards, go to step (1) and print the menu again.
Enter the BEGIN INDEX and END INDEX numbers:
Enter the BEGIN INDEX and END INDEX numbers:
(7) Else if the operation selection is (4), then ask for the string to be inserted and the insert location:
Implement the following function prototype for this operation:
int insert_string(char **ccs, char *insert, int begin_index) The insert will be inserted to the ccs starting from the begin_index. The length of the ccs will increase with the length of the insert. Again, memory must be reallocated so that new ccs exactly fits into the re-allocated space. Don't forget to free allocated space for the insert at the end of the insert_string() function.
The function returns the number of bytes that is allocated for new ccs. If the allocation is unsuccessful, then it returns -1.
You have to print out the ccs after calling this function.
Afterwards, go to step (1) and print the menu again.
(8) Else if the operation selection is (5), then ask for the string to be replaced and the string that will be used in replacement:
Implement the following function prototype for this operation:
int replace_string(char **ccs, char *find, char *replace)
All the occurrences of the find in the ccs will be found and replaced with replace.
The length of the ccs can increase or decrease based on the lengths of find and replace. Again, memory must be reallocated so that new ccs exactly fits into the re-allocated space. Don't forget to free allocated space for the find and replace at the end of the replace_string() function.
The function returns number of replacements.
Enter a new string for insertion:
Enter the BEGIN INDEX number where the new string begins:
Find what:
Replace with:
You have to print out how many replacement made and the ccs after calling this function.
Afterwards, go to step (1) and print the menu again.
Example Program Run:
0: Exit The Program 1: Set Current Character Sequence 2: Get Substring 3: Remove Substring 4: Insert 5: Replace
Enter Your Choice: 2
You have to set Current Character Sequence (CCS) before doing any operations!
0: Exit The Program 1: Set Current Character Sequence 2: Get Substring 3: Remove Substring 4: Insert 5: Replace
Enter Your Choice: 1 Enter CCS: A man, a plan, a canal, Panama!
0: Exit The Program 1: Set Current Character Sequence 2: Get Substring 3: Remove Substring 4: Insert 5: Replace
Enter Your Choice: 2 Enter the BEGIN INDEX and END INDEX numbers: 2 6
CCS: “A man, a plan, a canal, Panama!” Substring(2,6): “man, “
0: Exit The Program 1: Set Current Character Sequence 2: Get Substring 3: Remove Substring 4: Insert 5: Replace
Enter Your Choice: 3 Enter the BEGIN INDEX and END INDEX numbers: 2 8
CCS: “A plan, a canal, Panama!” Removed String(2,8): “man, a “
0: Exit The Program 1: Set Current Character Sequence 2: Get Substring 3: Remove Substring 4: Insert 5: Replace
Enter Your Choice: 4 Enter a new string for insertion: man, a
Enter the BEGIN INDEX number where the new string begins: 2 CCS: “A man, a plan, a canal, Panama!”
0: Exit The Program 1: Set Current Character Sequence 2: Get Substring 3: Remove Substring 4: Insert 5: Replace
Enter Your Choice: 5 Find what: A Replace with: One
There were 1 replacement. CCS: “One man, a plan, a canal, Panama!”
0: Exit The Program 1: Set Current Character Sequence 2: Get Substring 3: Remove Substring 4: Insert 5: Replace
Enter Your Choice: 0
Goodbye!
must be written in "C" language
Explanation / Answer
#include void main() { char str[80], search[10]; int count1 = 0, count2 = 0, i, j, flag; printf("Enter a string:"); gets(str); printf("Enter search substring:"); gets(search); while (str[count1] != '') count1++; while (search[count2] != '') count2++; for (i = 0; iRelated Questions
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