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DS/C/Lab/Week2/StringHandling.c

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+#include <stdio.h>
+
+int string_length(char string[])
+{
+    int i;
+    for(i=0; string[i]!='\0'; i++);
+    return i;
+}
+
+void string_concat(char str1[], char str2[])
+{
+    int i,j;
+    char str5[100];
+
+    for(i=0;str1[i]!='\0';i++)
+        str5[i]=str1[i];
+
+    str5[i] = '\0';
+
+    for(i=string_length(str5),j=0;str2[j]!='\0';i++,j++)
+        str5[i]=str2[j];
+
+    str5[i] = '\0';
+
+    printf("Joining Strings 1 and 2, we get: %s\n",str5);
+}
+
+void string_comp(char str1[], char str2[])
+{
+    int i;
+
+    for(i=0;str1[i]!='\0' || str2[i]!='\0' ;i++){
+        if(str1[i]>str2[i]){
+            printf("The first string is greater than the second.\n");
+            break;
+        }else if(str1[i]<str2[i]){
+            printf("The second string is greater than the first.\n");
+            break;
+        }
+    }
+}
+
+void string_insert(char str1[], char str2[], int pos)
+{
+    int i,j;
+    char str6[100];
+
+    if(pos > string_length(str1)){
+        printf("Invalid Position.");
+        return;
+
+    }else{
+
+        for(i=0;i<pos;i++){
+            str6[i]=str1[i];
+        }
+
+        for(i=pos,j=0;str2[j]!='\0';i++,j++){
+            str6[i]=str2[j];
+        }
+
+        for(i=pos+string_length(str2),j=pos;str1[j]!='\0';i++,j++){
+            str6[i]=str1[j];
+        }
+
+        str6[i]='\0';
+
+        printf("The new modified string is: %s \n", str6);
+
+        }
+}
+
+void string_destroy(char str1[], char str3[], int pos)
+{
+    int i, j, str3_len = string_length(str3);
+
+    if (pos < 0 || pos >= string_length(str1)) {
+        printf("Invalid Position.\n");
+        return;
+    } else if (str3_len > string_length(str1 + pos)) {
+        printf("Deletion substring is too long.\n");
+        return;
+    } else {
+        for (i = pos, j = 0; j < str3_len; i++, j++) {
+            if (str1[i] != str3[j]) {
+                printf("The substring doesn't match.\n");
+                return;
+            }
+        }
+        for (i = pos; str1[i + str3_len] != '\0'; i++) {
+            str1[i] = str1[i + str3_len];
+        }
+        str1[i] = '\0';
+    }
+}
+
+void main()
+{
+    int a,b;
+    char str1[100],str2[100],str3[100];
+
+    printf("Enter the first string: ");
+    gets(str1);
+
+    printf("Enter the second string: ");
+    gets(str2);
+
+    printf("The first string is %s. \n",str1);
+    printf("The second string is %s. \n",str2);
+
+    // String Length
+
+    printf("The length of String 1 is %d. \n",string_length(str1));
+    printf("The length of String 2 is %d. \n",string_length(str2));
+
+    // String Concatenation
+
+    string_concat(str1, str2);
+
+    // String Comparison
+
+    string_comp(str1, str2);
+
+    // String Insertion
+
+    printf("Enter the position at which you would like to insert string 2 into string 1: ");
+    scanf("%d",&a);
+
+    string_insert(str1, str2, a);
+
+    printf("Enter the position at which you would like to check for deletion substring: ");
+    scanf("%d",&b);
+
+    printf("Enter the part of the string that you want to delete from string 1: ");
+    getchar(); // Clear the newline character from the input buffer
+    fgets(str3, sizeof(str3), stdin); // Use fgets instead of gets for safer input
+
+    string_destroy(str1, str3, b);
+}