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using System;
using System.IO;
namespace ICSharpCode.NRefactory.CSharp.AstVerifier
{
class MainClass
{
static bool IsMatch (string src1, string src2, out int i, out int j)
{
i = 0;
j = 0;
while (i < src1.Length && j < src2.Length) {
char c1 = src1 [i];
char c2 = src2 [j];
if (char.IsWhiteSpace (c1)) {
i++;
continue;
}
if (char.IsWhiteSpace (c2)) {
j++;
continue;
}
if (c1 != c2)
return false;
i++;
j++;
}
while (i < src1.Length && char.IsWhiteSpace (src1[i])) {
i++;
}
while (j < src2.Length && char.IsWhiteSpace (src2[j])) {
j++;
}
return i == src1.Length && j == src2.Length;
}
public static void Main (string[] args)
{
if (args.Length == 0) {
Console.WriteLine ("Usage: AstVerifier [-v|-verbose] [Directory]");
return;
}
string directory = args[args.Length - 1];
bool verboseOutput = args.Length > 1 && (args[0] == "-v" || args[0] == "-verbose");
try {
if (!Directory.Exists (directory)) {
Console.WriteLine ("Directory not found.");
return;
}
} catch (IOException) {
Console.WriteLine ("Exception while trying to access the directory.");
return;
}
int failed = 0, passed = 0;
Console.WriteLine ("search in " + directory);
foreach (var file in Directory.GetFileSystemEntries (directory, "*", SearchOption.AllDirectories)) {
if (!file.EndsWith (".cs", StringComparison.Ordinal))
continue;
string text = File.ReadAllText (file);
var unit = SyntaxTree.Parse (text, file);
if (unit == null)
continue;
string generated = unit.ToString ();
int i, j;
if (!IsMatch (text, generated, out i, out j)) {
if (i > 0 && j > 0 && verboseOutput) {
Console.WriteLine ("fail :" + file + "----original:");
Console.WriteLine (text.Substring (0, Math.Min (text.Length, i + 1)));
Console.WriteLine ("----generated:");
Console.WriteLine (generated.Substring (0, Math.Min (generated.Length, j + 1)));
}
failed++;
} else {
passed++;
}
}
Console.WriteLine ("{0} passed, {1} failed", passed, failed);
}
}
}
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