public string[] ExportOptions( )
{
DotNetCoreRegexOptions options = OptionsControl.GetSelectedOptions( );
var json = JsonSerializer.Serialize(options);
return(new[] { $"json:{json}" });
}
internal void SetSelectedOptions(DotNetCoreRegexOptions options)
{
try
{
++ChangeCounter;
Options = options.Clone( );
DataContext = Options;
}
finally
{
--ChangeCounter;
}
}
public void ImportOptions(string[] options)
{
var json = options.FirstOrDefault(o => o.StartsWith("json:"))?.Substring("json:".Length);
DotNetCoreRegexOptions options_obj;
if (string.IsNullOrWhiteSpace(json))
{
options_obj = new DotNetCoreRegexOptions( );
}
else
{
options_obj = JsonSerializer.Deserialize <DotNetCoreRegexOptions>(json);
}
OptionsControl.SetSelectedOptions(options_obj);
}
static Regex CreateHighlightingRegex(DotNetCoreRegexOptions options)
{
var pb = new PatternBuilder( );
pb.Add(@"\(\?\#.*?(\)|$)"); // comment
if (options.IgnorePatternWhitespace)
{
pb.Add(@"\#[^\n]*"); // line comment
}
pb.Add(@"\\[pP]\{.*?(\}|$)"); // (skip)
pb.Add(@"(?'left_par'\()"); // '('
pb.Add(@"(?'right_par'\))"); // ')'
pb.Add(@"(?'left_brace'\{) \d+(,(\d+)?)? ((?'right_brace'\})|$)"); // '{...}'
pb.Add(@"(?'left_bracket'\[) \]? (\\.|.)*? ((?'right_bracket'\])|$)"); // '[...]'
pb.Add(@"\\."); // (skip)
return(pb.ToRegex( ));
}
static Regex GetCachedHighlightingRegex(DotNetCoreRegexOptions options)
{
string key = options.IgnorePatternWhitespace.ToString( );
lock ( CachedHighlightingRegexes )
{
if (CachedHighlightingRegexes.TryGetValue(key, out Regex regex))
{
return(regex);
}
regex = CreateHighlightingRegex(options);
CachedHighlightingRegexes.Add(key, regex);
return(regex);
}
}
static Regex CreateCachedColouringRegex(DotNetCoreRegexOptions options)
{
// (some patterns includes incomplete constructs)
var pb = new PatternBuilder( );
pb.BeginGroup("comment");
pb.Add(@"\(\?\#.*?(\)|$)");
if (options.IgnorePatternWhitespace)
{
pb.Add(@"\#[^\n]*");
}
pb.EndGroup( );
var escapes_pb = new PatternBuilder( );
escapes_pb.BeginGroup("escape");
escapes_pb.Add(@"\\[0-7]{2,3}");
escapes_pb.Add(@"\\x[0-9A-Fa-f]{1,2}");
escapes_pb.Add(@"\\c[A-Za-z]");
escapes_pb.Add(@"\\u[0-9A-Fa-f]{1,4}");
escapes_pb.Add(@"\\(p|P)\{.*?(\}|$)");
escapes_pb.Add(@"\\k<([A-Za-z]+>)?");
escapes_pb.Add(@"\\.");
escapes_pb.EndGroup( );
pb.AddGroup(null, $@"\[\]?({escapes_pb.ToPattern( )} |.)*?(\]|$)");
pb.Add(@"\(\?(?'name'<(?![=!]).*?(>|$))"); // (balancing groups covered too)
pb.Add(@"\(\?(?'name''.*?('|$))");
pb.Add(@"(?'name'\\k<.*?(>|$))");
pb.Add(@"(?'name'\\k'.*?('|$))");
pb.Add(escapes_pb.ToPattern( ));
var regex = pb.ToRegex( );
return(regex);
}
public DotNetCoreMatcher( string pattern, DotNetCoreRegexOptions options )
{
Pattern = pattern;
Options = options;
}
public IMatcher ParsePattern(string pattern)
{
DotNetCoreRegexOptions options = OptionsControl.GetSelectedOptions( );
return(new DotNetCoreMatcher(pattern, options));
}
