public static void main(final String[] argv) throws IOException {
final String filea = argv[argv.length - 2];
final String fileb = argv[argv.length - 1];
final String[] a = DiffPrint.slurp(filea);
final String[] b = DiffPrint.slurp(fileb);
final Diff d = new Diff(a, b);
char style = 'n';
for (int i = 0; i < argv.length - 2; ++i) {
final String f = argv[i];
if (f.startsWith("-")) {
for (int j = 1; j < f.length(); ++j) {
switch (f.charAt(j)) {
case 'e': // Ed style
style = 'e';
break;
case 'c': // Context diff
style = 'c';
break;
case 'u':
style = 'u';
break;
}
}
}
}
final boolean reverse = style == 'e';
final Diff.change script = d.diff_2(reverse);
if (script == null) {
System.err.println("No differences");
} else {
Base p;
switch (style) {
case 'e':
p = new EdPrint(a, b);
break;
case 'c':
p = new ContextPrint(a, b);
break;
case 'u':
p = new UnifiedPrint(a, b);
break;
default:
p = new NormalPrint(a, b);
}
p.print_header(filea, fileb);
p.print_script(script);
}
}
