refactoring: removed some constants from the .c file and added them to the header file and made the isValidName() function more readable.

src/createEmployeeAccount.c

@@ -2,7 +2,7 @@
 
 #include "createEmployeeAccount.h"
 
-bool isValidEmployeeID(const char* employeeId, int maximumStringLength)
+bool isValidEmployeeID(const char* employeeId,const int maximumStringLength)
 {
     int employeeIdLength = strlen(employeeId);
     /* looping through the employeeId string until a space is found to return false or true otherwise*/
@@ -17,7 +17,7 @@ bool isValidEmployeeID(const char* employeeId, int maximumStringLength)
 }
 
 
-bool isValidPassword( char *password, int minimumLength)
+bool isValidPassword( char *password,const int minimumLength)
 {
     /*created a pointer(*stringpointer) which helps loop through characters of the string password*/
     char *stringpointer = password;
@@ -48,20 +48,21 @@ bool isValidPassword( char *password, int minimumLength)
 
 }
 
-bool isValidName(char* name, int minimalLength)
+bool isValidName(char* name,const int minimalLength)
 {
-    if(strlen(name) < minimalLength)
+    int nameLength = strlen(name);
+    if(nameLength < minimalLength)
     {
         return false;
     }
 
-    for(int i = 0;i<strlen(name);i++)
+    for(int i = 0;i<nameLength;i++)
     {
-        if(isdigit(name[i])||ispunct(name[i])||isspace(name[i]))
+        int currentCharacter = name[i];
+        if(isdigit(currentCharacter)||ispunct(currentCharacter)||isspace(currentCharacter))
         {
             return false;
         }
-
     }
     return true;
 }
@@ -120,8 +121,6 @@ bool createNewEmployee(char* employeeId, char* employeePassword)
     fprintf(employeesFile,"\n%s %s\n",employeeId,employeePassword);
     fclose(employeesFile);
 
-    /*used the checkEmployeeCredentials to check if the new id and password are created successfully*/
-
     return true;
 }
 
@@ -129,10 +128,7 @@ bool createNewEmployee(char* employeeId, char* employeePassword)
 void getNewEmployeeCredentials()
 {
     employeedata *data = (employeedata*)malloc(sizeof(employeedata));
-    const int maxLength = 21;
     char employeeId[maxLength];
-    const int minPasswordLength = 5;
-    const int minimumNameLength = 4;
     char employeePassword[maxLength];
     char passwordVerfication[maxLength];
 
@@ -149,7 +145,6 @@ void getNewEmployeeCredentials()
     scanf(" %[^\n]s",passwordVerfication);
     passwordVerfication[strlen(employeePassword)] = '\0';
 
-
     if(verifyPassword(passwordVerfication,employeePassword) && isValidPassword(employeePassword,minPasswordLength) && isValidEmployeeID(employeeId,maxLength))
     {
         printf("\n\nplease enter your first name\n");

src/createEmployeeAccount.h

@@ -7,6 +7,10 @@
 #include<string.h>
 #include<ctype.h>
 
+#define minPasswordLength  5
+#define minimumNameLength  4
+#define maxLength  21
+
 struct employeesInformations
 {
     char firstName[15];