/src/spelling/CorrectorLauncher.java

 1package spelling;
 2
 3import java.io.File;
 4import java.io.FileNotFoundException;
 5import java.io.IOException;
 6import java.util.Locale;
 7import java.util.Scanner;
 8
 9import spelling.corrector.CorrectorBuilder;
10import spelling.corrector.SpellingCorrector;
11import spelling.dictionary.Dictionary;
12
13public class CorrectorLauncher {
14
15	public static void main(String[] args) throws IOException {
16		try {
17			SpellingCorrector sc = handleCommandLine(args);
18			Scanner inputScanner = new Scanner(System.in);
19			System.out.print("Please enter a word (anything else will quit the application):");
20			while(inputScanner.hasNext("[a-zA-Z]+")){
21				String toCorrect = inputScanner.next("[a-zA-Z]+");
22				String correction = sc.correct(toCorrect.toLowerCase());
23				System.out.println(toCorrect+ ":\t did you mean "+ correction);
24				System.out.print("\nPlease enter a word:");
25			}
26			
27		} catch (FileNotFoundException e) {
28			System.out.println(e.getMessage());
29		}
30	}
31	private static SpellingCorrector handleCommandLine(String[] args) throws IOException {
32		boolean hasCommandFlag = args.length > 0;
33		String filename = "holmes.txt";
34		boolean isVerbose = false;
35		if(hasCommandFlag){
36			for(int index=0;index<args.length;index++){
37				if("-h".equalsIgnoreCase(args[index])){
38					showHelp();
39				}else if("-f".equalsIgnoreCase(args[index])){
40					if(index+1 > args.length){
41						showHelp();
42					}else{
43						if(args[index+1].startsWith("-")){
44							showHelp();
45						}else{
46							filename = args[index+1];
47							index++;
48						}
49					}
50				}else if("-v".equalsIgnoreCase(args[index])){
51					if(index+1 > args.length){
52						//do nothing
53					}else{
54						isVerbose = true;
55					}
56				}
57				
58			}
59		}
60		Dictionary.load(Locale.ENGLISH, new File(filename));
61		
62		SpellingCorrector corrector = CorrectorBuilder.buildCorrector(isVerbose);
63		return corrector;
64	}
65	
66	private static void showHelp() {
67		System.out.println("Usage SpellingCorrector [-h -f filename -v] \n\t-h : Show this help\n\t-f filename : Use this file to train the corrector\n\t-v [all] : Print statistic for methods if \"all\" then print statistic for every methods");
68		System.exit(0);
69	}
70}