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https://gitlab.com/freepascal.org/lazarus/lazarus.git
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109 lines
2.7 KiB
ObjectPascal
109 lines
2.7 KiB
ObjectPascal
{
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*****************************************************************************
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See the file COPYING.modifiedLGPL.txt, included in this distribution,
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for details about the license.
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*****************************************************************************
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Abstract:
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Useful functions for IDE add ons.
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}
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unit IDEUtils;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, StdCtrls, LazUTF8, LazFileUtils;
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type
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TCmpStrType = (
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cstCaseSensitive,
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cstCaseInsensitive,
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cstFilename
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);
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function IndexInStringList(List: TStrings; Cmp: TCmpStrType; s: string): integer;
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procedure SetComboBoxText(AComboBox: TComboBox; const AText: String;
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Cmp: TCmpStrType; MaxCount: integer = 1000);
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function LazIsValidIdent(const Ident: string; AllowDots: Boolean = False;
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StrictDots: Boolean = False): Boolean;
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implementation
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function IndexInStringList(List: TStrings; Cmp: TCmpStrType; s: string): integer;
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var
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i: Integer;
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begin
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for i:=0 to List.Count-1 do begin
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case Cmp of
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cstCaseSensitive: if List[i]=s then exit(i);
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cstCaseInsensitive: if UTF8CompareText(List[i],s)=0 then exit(i);
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cstFilename: if CompareFilenames(List[i],s)=0 then exit(i);
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end;
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end;
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Result:=-1;
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end;
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procedure SetComboBoxText(AComboBox:TComboBox; const AText: String;
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Cmp: TCmpStrType; MaxCount: integer);
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var
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a: integer;
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begin
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if AText<>'' then begin
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a := IndexInStringList(AComboBox.Items,Cmp,AText);
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if a >= 0 then
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AComboBox.ItemIndex := a
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else
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begin
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AComboBox.Items.Insert(0,AText);
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AComboBox.ItemIndex:=IndexInStringList(AComboBox.Items,Cmp,AText);
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if MaxCount<2 then MaxCount:=2;
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while AComboBox.Items.Count>MaxCount do
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AComboBox.Items.Delete(AComboBox.Items.Count-1);
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end;
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end;
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AComboBox.Text := AText;
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end;
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function LazIsValidIdent(const Ident: string; AllowDots: Boolean = False;
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StrictDots: Boolean = False): Boolean;
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// This is a copy of IsValidIdent from FPC 3.1.
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// ToDo: Switch to using IsValidIdent from FPC 3.2 when it is the minimum requirement.
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const
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Alpha = ['A'..'Z', 'a'..'z', '_'];
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AlphaNum = Alpha + ['0'..'9'];
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Dot = '.';
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var
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First: Boolean;
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I, Len: Integer;
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begin
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Len := Length(Ident);
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if Len < 1 then
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Exit(False);
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First := True;
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for I := 1 to Len do
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begin
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if First then
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begin
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Result := Ident[I] in Alpha;
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First := False;
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end
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else if AllowDots and (Ident[I] = Dot) then
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begin
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if StrictDots then
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begin
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Result := I < Len;
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First := True;
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end;
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end
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else
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Result := Ident[I] in AlphaNum;
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if not Result then
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Break;
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end;
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end;
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end.
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