private List <LineChange> CreateDiff(CodeLanguage language, string input1, string input2, StringBuilder diff)
{
IEqualityComparer <string> eq = FunctionalExt.ValuedSwitch <CodeLanguage, IEqualityComparer <string> >(language)
.Case(CodeLanguage.CSharp, () => new CSharpCodeLineEqualityComparer())
.Case(CodeLanguage.IL, () => new ILCodeLineEqualityComparer())
.GetResult();
var differ = new AlignedDiff <string>(
NormalizeAndSplitCode(input1),
NormalizeAndSplitCode(input2),
eq,
new StringSimilarityComparer(),
new StringAlignmentFilter());
int line1 = 0, line2 = 0;
var list = new List <LineChange>();
foreach (var change in differ.Generate())
{
int startIndex = 0;
switch (change.Change)
{
case ChangeType.Same:
diff.AppendFormat("{0,4} {1,4} ", ++line1, ++line2);
diff.AppendFormat(" ");
diff.AppendLine(change.Element1);
break;
case ChangeType.Added:
startIndex = diff.Length;
diff.AppendFormat(" {1,4} + ", line1, ++line2);
diff.AppendLine(change.Element2);
list.Add(NewLineChange(LineChangeType.Add, diff, startIndex, diff.Length));
break;
case ChangeType.Deleted:
startIndex = diff.Length;
diff.AppendFormat("{0,4} - ", ++line1, line2);
diff.AppendLine(change.Element1);
list.Add(NewLineChange(LineChangeType.Remove, diff, startIndex, diff.Length));
break;
case ChangeType.Changed:
startIndex = diff.Length;
diff.AppendFormat("{0,4} ", ++line1, line2);
diff.AppendFormat("(-) ");
diff.AppendLine(change.Element1);
list.Add(NewLineChange(LineChangeType.Remove, diff, startIndex, diff.Length));
startIndex = diff.Length;
diff.AppendFormat(" {1,4} ", line1, ++line2);
diff.AppendFormat("(+) ");
diff.AppendLine(change.Element2);
list.Add(NewLineChange(LineChangeType.Add, diff, startIndex, diff.Length));
break;
}
}
return(list);
}
private List<LineChange> CreateDiff(CodeLanguage language, string input1, string input2, StringBuilder diff)
{
IEqualityComparer<string> eq = FunctionalExt.ValuedSwitch<CodeLanguage, IEqualityComparer<string>>(language)
.Case(CodeLanguage.CSharp, () => new CSharpCodeLineEqualityComparer())
.Case(CodeLanguage.IL, () => new ILCodeLineEqualityComparer())
.GetResult();
var differ = new AlignedDiff<string>(
NormalizeAndSplitCode(input1),
NormalizeAndSplitCode(input2),
eq,
new StringSimilarityComparer(),
new StringAlignmentFilter());
int line1 = 0, line2 = 0;
var list = new List<LineChange>();
foreach (var change in differ.Generate())
{
int startIndex = 0;
switch (change.Change)
{
case ChangeType.Same:
diff.AppendFormat("{0,4} {1,4} ", ++line1, ++line2);
diff.AppendFormat(" ");
diff.AppendLine(change.Element1);
break;
case ChangeType.Added:
startIndex = diff.Length;
diff.AppendFormat(" {1,4} + ", line1, ++line2);
diff.AppendLine(change.Element2);
list.Add(NewLineChange(LineChangeType.Add, diff, startIndex, diff.Length));
break;
case ChangeType.Deleted:
startIndex = diff.Length;
diff.AppendFormat("{0,4} - ", ++line1, line2);
diff.AppendLine(change.Element1);
list.Add(NewLineChange(LineChangeType.Remove, diff, startIndex, diff.Length));
break;
case ChangeType.Changed:
startIndex = diff.Length;
diff.AppendFormat("{0,4} ", ++line1, line2);
diff.AppendFormat("(-) ");
diff.AppendLine(change.Element1);
list.Add(NewLineChange(LineChangeType.Remove, diff, startIndex, diff.Length));
startIndex = diff.Length;
diff.AppendFormat(" {1,4} ", line1, ++line2);
diff.AppendFormat("(+) ");
diff.AppendLine(change.Element2);
list.Add(NewLineChange(LineChangeType.Add, diff, startIndex, diff.Length));
break;
}
}
return list;
}
static bool Compare(string input1, string input2, StringWriter diff)
{
string[] inputLines1 = NormalizeAndSplitCode(input1);
string[] inputLines2 = NormalizeAndSplitCode(input2);
var differ = new AlignedDiff <string>(
inputLines1,
inputLines2,
new CodeLineEqualityComparer(),
new StringSimilarityComparer(),
new StringAlignmentFilter());
bool result = true, ignoreChange;
int line1 = 0, line2 = 0;
foreach (var change in differ.Generate())
{
switch (change.Change)
{
case ChangeType.Same:
diff.Write("{0,4} {1,4} ", ++line1, ++line2);
diff.Write(" ");
diff.WriteLine(change.Element1);
break;
case ChangeType.Added:
diff.Write(" {1,4} ", line1, ++line2);
result &= ignoreChange = ShouldIgnoreChange(change.Element2);
diff.Write(ignoreChange ? " " : " + ");
diff.WriteLine(change.Element2);
break;
case ChangeType.Deleted:
diff.Write("{0,4} ", ++line1, line2);
result &= ignoreChange = ShouldIgnoreChange(change.Element1);
diff.Write(ignoreChange ? " " : " - ");
diff.WriteLine(change.Element1);
break;
case ChangeType.Changed:
diff.Write("{0,4} ", ++line1, line2);
result = false;
diff.Write("(-) ");
diff.WriteLine(change.Element1);
diff.Write(" {1,4} ", line1, ++line2);
diff.Write("(+) ");
diff.WriteLine(change.Element2);
break;
}
}
return(result);
}
