public static Dictionary <string, TextEdit[]> Rename(int index, string new_text, Document doc)
{
IEnumerable <Location> locations = LanguageServer.Module.FindRefsAndDefs(index, doc);
Dictionary <string, TextEdit[]> result = new Dictionary <string, TextEdit[]>();
IEnumerable <Document> documents = locations.Select(r => r.Uri).OrderBy(q => q).Distinct();
foreach (Document f in documents)
{
string fn = f.FullPath;
IOrderedEnumerable <Location> per_file_changes = locations.Where(z => z.Uri == f).OrderBy(q => q.Range.Start.Value);
StringBuilder sb = new StringBuilder();
int previous = 0;
string code = f.Code;
foreach (Location l in per_file_changes)
{
Document d = l.Uri;
string xx = d.FullPath;
Range r = l.Range;
string pre = code.Substring(previous, r.Start.Value - previous);
sb.Append(pre);
sb.Append(new_text);
previous = r.End.Value + 1;
}
string rest = code.Substring(previous);
sb.Append(rest);
string new_code = sb.ToString();
List <TextEdit> edits = new List <TextEdit>();
diff_match_patch diff = new diff_match_patch();
List <Diff> diffs = diff.diff_main(code, new_code);
List <Patch> patch = diff.patch_make(diffs);
int times = 0;
int delta = 0;
foreach (Patch p in patch)
{
times++;
int start = p.start1 - delta;
int offset = 0;
foreach (Diff ed in p.diffs)
{
if (ed.operation == Operation.EQUAL)
{
//// Let's verify that.
int len = ed.text.Length;
//var tokenSpan = new SnapshotSpan(buffer.CurrentSnapshot,
// new Span(start + offset, len));
//var tt = tokenSpan.GetText();
//if (ed.text != tt)
//{ }
offset = offset + len;
}
else if (ed.operation == Operation.DELETE)
{
int len = ed.text.Length;
//var tokenSpan = new SnapshotSpan(buffer.CurrentSnapshot,
// new Span(start + offset, len));
//var tt = tokenSpan.GetText();
//if (ed.text != tt)
//{ }
TextEdit edit = new TextEdit()
{
range = new Workspaces.Range(
new Workspaces.Index(start + offset),
new Workspaces.Index(start + offset + len)),
NewText = ""
};
offset = offset + len;
edits.Add(edit);
}
else if (ed.operation == Operation.INSERT)
{
int len = ed.text.Length;
TextEdit edit = new TextEdit()
{
range = new Workspaces.Range(
new Workspaces.Index(start + offset),
new Workspaces.Index(start + offset)),
NewText = ed.text
};
edits.Add(edit);
}
}
delta = delta + (p.length2 - p.length1);
}
TextEdit[] e = edits.ToArray();
result.Add(fn, e);
}
return(result);
}
public static TextEdit[] Reformat(Document doc)
{
ParserDetails ref_pd = ParserDetailsFactory.Create(doc);
string code = doc.Code;
string corpus_location = Options.Option.GetString("CorpusLocation");
if (corpus_location == null)
{
TextEdit[] result = new TextEdit[] { };
return(result);
}
string ffn = doc.FullPath;
if (ffn == null)
{
TextEdit[] result = new TextEdit[] { };
return(result);
}
IGrammarDescription grammar_description = LanguageServer.GrammarDescriptionFactory.Create(ffn);
if (grammar_description == null)
{
TextEdit[] result = new TextEdit[] { };
return(result);
}
org.antlr.codebuff.Tool.unformatted_input = code;
try
{
string result = org.antlr.codebuff.Tool.Main(
new object[]
{
"-g", grammar_description.Name,
"-lexer", grammar_description.Lexer,
"-parser", grammar_description.Parser,
"-rule", grammar_description.StartRule,
"-files", grammar_description.FileExtension,
"-corpus", corpus_location,
"-inoutstring",
""
});
List <TextEdit> edits = new List <TextEdit>();
diff_match_patch diff = new diff_match_patch();
List <Diff> diffs = diff.diff_main(code, result);
List <Patch> patch = diff.patch_make(diffs);
//patch.Reverse();
// Start edit session.
int times = 0;
int delta = 0;
foreach (Patch p in patch)
{
times++;
int start = p.start1 - delta;
int offset = 0;
foreach (Diff ed in p.diffs)
{
if (ed.operation == Operation.EQUAL)
{
//// Let's verify that.
int len = ed.text.Length;
//var tokenSpan = new SnapshotSpan(buffer.CurrentSnapshot,
// new Span(start + offset, len));
//var tt = tokenSpan.GetText();
//if (ed.text != tt)
//{ }
offset = offset + len;
}
else if (ed.operation == Operation.DELETE)
{
int len = ed.text.Length;
//var tokenSpan = new SnapshotSpan(buffer.CurrentSnapshot,
// new Span(start + offset, len));
//var tt = tokenSpan.GetText();
//if (ed.text != tt)
//{ }
TextEdit edit = new TextEdit()
{
range = new Workspaces.Range(
new Workspaces.Index(start + offset),
new Workspaces.Index(start + offset + len)),
NewText = ""
};
offset = offset + len;
edits.Add(edit);
}
else if (ed.operation == Operation.INSERT)
{
int len = ed.text.Length;
TextEdit edit = new TextEdit()
{
range = new Workspaces.Range(
new Workspaces.Index(start + offset),
new Workspaces.Index(start + offset)),
NewText = ed.text
};
edits.Add(edit);
}
}
delta = delta + (p.length2 - p.length1);
}
return(edits.ToArray());
}
catch (Exception)
{
TextEdit[] result = new TextEdit[] { };
return(result);
}
}
