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#include #include #include void analyze(char *input) { int i = 0; int lines = 1; char identifiers[100][100]; char operators[100]; int id_count = 0, op_count = 0; printf("The no’s in the program are:\n"); printf("The keywords and identifiers are:\n"); while (input[i] != '\0') { if (isalpha(input[i])) { // If it's an alphabet, it could be an identifier char id[100]; int j = 0; while (isalpha(input[i]) || isdigit(input[i])) { id[j++] = input[i++]; } id[j] = '\0'; strcpy(identifiers[id_count++], id); printf("%s is an identifier and terminal\n", id); } else if (isdigit(input[i])) { // If it's a digit, it could be part of a number while (isdigit(input[i])) { i++; } } else if (input[i] == '+' || input[i] == '*' || input[i] == '-' || input[i] == '/' || input[i] == '=') { // Operators operators[op_count++] = input[i++]; } else if (input[i] == '\n') { lines++; i++; } else if (input[i] == ' ' || input[i] == '\t') { // Skip whitespaces and tabs i++; } else { i++; } } // Print special characters (operators) printf("Special characters are:\n"); for (int k = 0; k < op_count; k++) { printf("%c ", operators[k]); } printf("\n"); printf("Total no. of lines are: %d\n", lines); } int main() { char input[1000]; printf("Enter the C program: "); fgets(input, 1000, stdin); // Remove the newline character at the end if it exists size_t len = strlen(input); if (len > 0 && input[len - 1] == '\n') { input[len - 1] = '\0'; } analyze(input); return 0; }