Console Text editor

				
//**************************************
// Name: Console Text editor
// Description:This code allows a text file to be edited in the console/command prompt.
// By: RicardoNZ
//
// Inputs:uses System.in and files for input
//
// Side Effects:i would recomend saving all your text files just incase something goes wrong.
//
//This code is copyrighted and has// limited warranties.Please see http://www.Planet-Source-Code.com/vb/scripts/ShowCode.asp?txtCodeId=4515&lngWId=2//for details.//**************************************

/* ConsoleInput.java
 * Allows txt files to be read, edited and created entirely from the console.
 * Author: Richard s
 */
import java.io.*;
import java.util.*;
public class FileEdit {
 public FileEdit(){
 main(null);
 }
 public static void main(String[] args) {
try {
 // Create object ins and connect it to the console
 InputStreamReader inStream = new InputStreamReader(System.in);
 BufferedReader ins = new BufferedReader(inStream);
 dialog(ins);
 ins.close();
}
catch (IOException ex) {
 System.err.println("i/o error" + ex.getMessage());
 ex.printStackTrace();
}
System.exit(0);
 }
 private static void dialog(BufferedReader i)throws IOException {
String command;
while (true) {
 System.out.print(" Enter command: ");
 command = i.readLine();
 boolean load = false;
 if (command.startsWith("load ")) {
String inputFile = command.substring(command.indexOf(' ') + 1);
System.out.println("\n\n");
print(inputFile);
 }
 
if (command.startsWith("edit")) {
edit(i, command);
 }
 else if (command.startsWith("save")) {
save(i, command);
 }
 else if ("exit".startsWith(command)) {
return;
 }
}
 }
 public static void save(BufferedReader in, String command) {
 
try {
String file;
int space = command.indexOf(' ');
 if(space!= -1)
 file = command.substring(space + 1);
else{
 System.out.println(" Enter File name");
 file = in.readLine();
 }
 FileWriter outF = new FileWriter(file);
 PrintWriter outs = new PrintWriter(outF);
 System.out.println("Enter as many lines as you like and type End to close the file.");
 //read and save data
 String dataLine = in.readLine();
 while (!("End".equals(dataLine))) {
outs.println(dataLine);
dataLine = in.readLine();
	
if(dataLine == null|| dataLine=="")
	dataLine = "\n";
 }
 
 outs.close();
}
catch (IOException ex) {
 System.err.println("i/o error" + ex.getMessage());
 ex.printStackTrace();
}
 }
 public static void edit(BufferedReader in, String command) {
 
 
 
 Vector vFile = new Vector();
 Vector section;
 try {
String file;
int space = command.indexOf(' ');
 if(space!= -1)
 file = command.substring(space + 1);
else{
 System.out.println(" Enter File name");
 file = in.readLine();
 }
 
 FileReader inS = new FileReader(file);
 BufferedReader Ins = new BufferedReader(inS);
 //read and print data
 
 String dataLine = Ins.readLine();
 //vFile.add(dataLine);
 int lines = 1;
 while (dataLine != null) {
System.out.println(lines + " | " + dataLine);
if(!vFile.add(dataLine))
	 break;
	 
	dataLine = Ins.readLine();
	 
lines++;
 }
 
Ins.close();
 while(true){
System.out.print("Enter line to edit or press 's' to add a section of text at any point: ");
 command = in.readLine();
 if("exit".startsWith(command))
 break;
 else if(command.charAt(0)=='a'){
 System.out.println("Until i fix this - just put a new line character in the file... (>n)");
 }
 else if (command.charAt(0)=='s'){
 System.out.println("Enter lines you want added to the file (type End to stop)");
 
 section = new Vector();
 
 String toAdd = in.readLine();
 while (!("End".equals(toAdd))) {
section.add(toAdd);
toAdd = in.readLine();
	
if(toAdd == null|| dataLine=="")
	toAdd = "\n";
 }
 
System.out.print("Enter line where you wish to add section (or cancel): ");
 command = in.readLine();
 int line = Integer.parseInt(command.trim());
 
 for(int i = section.size(); i>0; i--){
 
 vFile.insertElementAt(section.remove(section.size()-1), line);
 }
 
 }
 else{
int line = Integer.parseInt(command.trim());
	
	System.out.print("Enter replacement for line: \n");
	System.out.print(vFile.get(line-1));
	command = in.readLine();
	if(command.charAt(0)=='>'){
	String add = "";
	for(int i = 0; i<Integer.parseInt(command.substring(1)); i++){
	add += "\n";
	vFile.insertElementAt(add, line-1);
	}
	}
	else{
	
	vFile.setElementAt(command, line-1);
	}
	
	}
	}
	
	FileWriter outF = new FileWriter(file);
	 PrintWriter outs = new PrintWriter(outF);
	 int size = vFile.size();
for(int i = 0; i< size; i++){
String s = (String)vFile.remove(0);
 
 
outs.println(s);
}
outs.close();
}
catch (IOException ex) {
 System.err.println("i/o error" + ex.getMessage());
 ex.printStackTrace();
}
 }
 
 public static void print(String file) {
try {
 FileReader inS = new FileReader(file);
 BufferedReader Ins = new BufferedReader(inS);
 //read and print data
 String dataLine = Ins.readLine();
 while (dataLine != null) {
System.out.println(dataLine);
dataLine = Ins.readLine();
 }
 Ins.close();
}
catch (IOException ex) {
 System.err.println("i/o error" + ex.getMessage());
 ex.printStackTrace();
}
 }
}