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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 Dictionary;
interface
uses
Boolean,
Collection.List,
Color.Rgb,
Condition,
FloatingPoint._64,
Integer._32,
Memory.Block,
Text;
type
TDictionaryEntry = class(TObject)
public
Key: TText;
Value: TText;
Block: TMemoryBlock;
destructor Destroy(); override;
public
type
TKeyCondition = class(TCondition<TDictionaryEntry>)
private
Key: TText;
constructor Create(const Key: TText); reintroduce; virtual;
public
function Matches(const Entry: TDictionaryEntry): TBoolean; override;
end;
end;
TDictionary = class(TObject)
private
function GetCount(): TInteger32;
function EntryWithKey(const Key: TText): TDictionaryEntry;
public
Entries: TList<TDictionaryEntry>;
constructor Create(); virtual;
destructor Destroy(); override;
procedure Add(const Key: TText; const Value: TText); overload;
procedure Add(const Key: TText; Block: TMemoryBlock; const Value: TText); overload;
procedure Remove(const Key: TText);
function KeyExists(const Key: TText): TBoolean;
function GetTextValue(const Key: TText): TText;
function GetTextValueWithDefault(const Key: TText; const Default: TText): TText;
function GetInteger32Value(const Key: TText): TInteger32;
function GetInteger32ValueWithDefault(const Key: TText; const Default: TInteger32): TInteger32;
function GetFloatingPoint64Value(const Key: TText): TFloatingPoint64;
function GetBooleanValue(const Key: TText): TBoolean;
function GetBooleanValueWithDefault(const Key: TText; const Default: TBoolean): TBoolean;
function GetColorValue(const Key: TText): TRgbColor;
function GetColorValueWithDefault(const Key: TText; const Default: TRgbColor): TRgbColor;
function GetBlock(const Key: TText): TMemoryBlock;
property Count: TInteger32 read GetCount;
end;
implementation
uses
FloatingPoint._64.TextFormat,
Integer._32.TextFormat,
Object_.List,
Text.Collation;
{ TDictionary }
procedure TDictionary.Add(const Key: TText; const Value: TText);
begin
Add(Key, nil, Value);
end;
procedure TDictionary.Add(const Key: TText; Block: TMemoryBlock; const Value: TText);
var
Entry: TDictionaryEntry;
begin
Entry := TDictionaryEntry.Create();
Entry.Key := Key;
Entry.Block := Block;
Entry.Value := Value;
Entries.Add(Entry);
end;
constructor TDictionary.Create();
begin
inherited Create();
Entries := TObjectList<TDictionaryEntry>.Create();
end;
destructor TDictionary.Destroy();
begin
Entries.Free();
inherited Destroy();
end;
function TDictionary.EntryWithKey(const Key: TText): TDictionaryEntry;
begin
Result := Entries.Find(TDictionaryEntry.TKeyCondition.Create(Key));
end;
function TDictionary.GetBooleanValue(const Key: TText): TBoolean;
begin
Result := TTextCollation.DefaultCaseInsensitive.Equal(GetTextValue(Key), 'True');
end;
function TDictionary.GetBooleanValueWithDefault(const Key: TText; const Default: TBoolean): TBoolean;
var
Entry: TDictionaryEntry;
begin
Entry := EntryWithKey(Key);
if Entry <> nil then
Result := TTextCollation.DefaultCaseInsensitive.Equal(Entry.Value, 'True')
else
Result := Default;
end;
function TDictionary.GetColorValue(const Key: TText): TRgbColor;
begin
Result := TRgbColor.New(EntryWithKey(Key).Value);
end;
function TDictionary.GetColorValueWithDefault(const Key: TText; const Default: TRgbColor): TRgbColor;
var
Entry: TDictionaryEntry;
begin
Entry := EntryWithKey(Key);
if Entry <> nil then
Result := TRgbColor.New(Entry.Value)
else
Result := Default;
end;
function TDictionary.GetCount(): TInteger32;
begin
Result := Entries.Count;
end;
function TDictionary.GetFloatingPoint64Value(const Key: TText): TFloatingPoint64;
begin
Result := TextToFloatingPoint64(GetTextValue(Key));
end;
function TDictionary.GetInteger32Value(const Key: TText): TInteger32;
begin
Result := TextToInteger32(GetTextValue(Key));
end;
function TDictionary.GetInteger32ValueWithDefault(const Key: TText; const Default: TInteger32): TInteger32;
var
Entry: TDictionaryEntry;
begin
Entry := EntryWithKey(Key);
if Entry <> nil then
Result := TextToInteger32(Entry.Value)
else
Result := Default;
end;
function TDictionary.GetBlock(const Key: TText): TMemoryBlock;
var
Entry: TDictionaryEntry;
begin
Entry := EntryWithKey(Key);
Result := Entry.Block;
end;
function TDictionary.GetTextValue(const Key: TText): TText;
var
Entry: TDictionaryEntry;
begin
Entry := EntryWithKey(Key);
Result := Entry.Value;
end;
function TDictionary.GetTextValueWithDefault(const Key: TText; const Default: TText): TText;
var
Entry: TDictionaryEntry;
begin
Entry := EntryWithKey(Key);
if Entry <> nil then
Result := Entry.Value
else
Result := Default;
end;
function TDictionary.KeyExists(const Key: TText): TBoolean;
begin
Result := EntryWithKey(Key) <> nil;
end;
procedure TDictionary.Remove(const Key: TText);
var
Index: TInteger32;
begin
Index := Entries.IndexOf(TDictionaryEntry.TKeyCondition.Create(Key));
Entries.RemoveAt(Index);
end;
{ TDictionaryEntry }
destructor TDictionaryEntry.Destroy();
begin
Block.Free();
inherited Destroy();
end;
{ TDictionaryEntry.TKeyCondition }
constructor TDictionaryEntry.TKeyCondition.Create(const Key: TText);
begin
inherited Create();
Self.Key := Key;
end;
function TDictionaryEntry.TKeyCondition.Matches(const Entry: TDictionaryEntry): TBoolean;
begin
Result := Entry.Key = Key;
end;
end.
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