search in string C program

in this lab, we want you to write a program using C string functions. 

All function examples can be found in the following two pages:

http://www.cplusplus.com/reference/cstdio/  and  http://www.cplusplus.com/reference/cstring/

Especially the following functions:

fgetc, fgets, strlen, strchr, strstr, strcpy, strncpy, strcmp

· The execution of the finished program should look what is shown below (User input is shown in bold).

Author:      Hong Wang

Lab:         Thursday 2pm

Program:     Search in string

Please enter a lower-case string (max length = 80):

>123 5678 0

Length of your input is: 10

Please enter a character that you want to find in the input string:

>5

Character [5] is found.

Please enter a word that you want to find in the input string:

>567

Word [567] is found.

Word [567] is not the first word [123] in the input string.

· Stage 1 (1 point):

· Ask user to input a lower-case string.

· Create a char array to hold the input string (inputLine). You can assume the max length of input string (char array) is 81 ( i.e. #define MAX_INPUT_NUM 81)

· Get the input string (fgets).

· Count the length of input string (strlen), and output this length.

Example I/O:

Please enter a lower-case string (max length = 80):

>123 5678 0

Length of your input is: 10

· Stage 2 (1 point):

· Ask user to enter a character.

· Get the input character (fgetc).

· Check whether or not the character is found in input string (strchr), and output the check result.

· Ask user to enter a word (inputWord).

· Get the input word (fgets).

· Check whether or not the word is found in the input string (strstr), and output the check result.

Example I/O:

Please enter a character that you want to find in the input string:

>5

Character [5] is found.

Please enter a word that you want to find in the input string:

>567

Word [567] is found.

Example I/O:

Notes:

· In windows, when you press "enter" key, you input "\r\n", while in Linux/Unix only "\n" is input. You can use code like this to "end" your input string: 

inputStirng[strlen(inputStirng) - 1] = '\0';

· When you read a character from stdin, the end-line characters may still be in buffer. You can use this code to clear input buffer: 

while (getchar() != '\n'); 

Reference:  http://stackoverflow.com/questions/7898215/how-to-clear-input-buffer-in-c