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| ///////////////////////////////////////////////////////////////////////////
// //
// Copyright (c) 2015 by Charta Software B.V. //
// All rights reserved //
// //
// Version: 1.7.0.83525 //
// Web site: https://pascal.chartasoftware.com/ //
// //
// This code and information are provided "as is" without warranty of //
// any kind. Dissemination of this information or reproduction of //
// this material is strictly forbidden unless prior written permission //
// is obtained from Charta Software B.V.. //
// //
///////////////////////////////////////////////////////////////////////////
unit Http.Range;
interface
uses
Integer.Interval,
Text;
type
THttpRange = class(TObject)
public
Range: TIntegerInterval;
const
NO_END_SPECIFIED = -1;
function ToText(): TText;
public
class function FromText(Value: TText): THttpRange;
end;
implementation
uses
Integer.TextFormat.Standard;
{ THttpRange }
class function THttpRange.FromText(Value: TText): THttpRange;
begin
Result := nil;
if Value.StartsWith('bytes=') then
begin
Value := Value.SubtextFrom(6);
// TODO: We should support multiple ranges in a range set
if not Value.Contains(',') and not Value.StartsWith('-') then
begin
Result := THttpRange.Create();
Result.Range.Low := TStandardIntegerTextFormat.Decimal.FromText(Value.Parse('-'));
if Value <> '' then
Result.Range.High := TStandardIntegerTextFormat.Decimal.FromText(Value)
else
Result.Range.High := NO_END_SPECIFIED;
end;
end;
end;
function THttpRange.ToText(): TText;
begin
Result := 'bytes=' + Range.Low.ToText();
if Range.High <> NO_END_SPECIFIED then
Result := Result + '-' + Range.High.ToText();
end;
end.
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