我在Delphi中使用了Live Templates,但是试图提出一个将GUIDS添加到模板的解决方案。有谁知道如何做到这一点?
在模板下面我现在用GUID作为一个单词我需要手动替换。
<?xml version="1.0" encoding="utf-8" ?> <codetemplate xmlns="http://schemas.borland.com/Delphi/2005/codetemplates" version="1.0.0"> <template name="iacc" surround="false" invoke="manual"> <point name="name"> <text> IntfAccessors </text> <hint> Accessors name </hint> </point> <description> accessor declaration </description> <author> PMH </author> <code language="Delphi" context="methoddecl" delimiter="|"> <![CDATA[I|name|Accessors = interface(IInterface) GUID <-- here I want a GUID end; I|name| = interface(I|name|Accessors) GUID <-- here I want a GUID end; ]]> </code> </template> </codetemplate>
解决方法
您可以通过编写自定义脚本引擎来扩展IDE来执行此操作。 (
Here是由Nick Hodges撰写的一篇文章,其中插入了当前日期的类似示例。)
我假设您的示例模板中的两个不同的界面需要两个不同的IID,所以我写了脚本引擎来从“脚本”加载点名称(它只是名称=值对的列表,其中名称是点名称和值必须为NewGuid,否则忽略),因此您可以创建具有多个点的模板,每个点都接收单独的新IID。
示例模板intf.xml:
<?xml version="1.0" encoding="utf-8" ?> <codetemplate xmlns="http://schemas.borland.com/Delphi/2005/codetemplates" version="1.0.0"> <template name="iacc" surround="false" invoke="manual"> <point name="name"> <text> Accessor </text> <hint> Accessors name </hint> </point> <point name="guid1"/> <point name="guid2"/> <description> accessor declaration </description> <author> PMH </author> <script language="NewGuidScript" onvalidate="true"> guid1=NewGuid guid2=NewGuid </script> <code language="Delphi" context="any" delimiter="|"> <![CDATA[I|name|Accessors = interface(IInterface) |*||guid1| end; I|name| = interface(I|name|Accessors) |*||guid2| end;]]> </code> </template> </codetemplate>
NewGuidScriptEngine.pas:
unit NewGuidScriptEngine; interface uses Classes,SysUtils,ToolsApi,CodeTemplateApi,DesignEditors; type TNewGuidScriptEngine = class(TNotifierObject,IOTACodeTemplateScriptEngine) public procedure Execute(const ATemplate: IOTACodeTemplate; const APoint: IOTACodeTemplatePoint; const ASyncPoints: IOTASyncEditPoints; const AScript: IOTACodeTemplateScript; var Cancel: Boolean); function GetIDString: WideString; function GetLanguage: WideString; end; procedure Register; implementation uses ActiveX,ComObj; procedure Register; begin (BorlandIDEServices as IOTACodeTemplateServices).RegisterScriptEngine(TNewGuidScriptEngine.Create); end; procedure TNewGuidScriptEngine.Execute(const ATemplate: IOTACodeTemplate; const APoint: IOTACodeTemplatePoint; const ASyncPoints: IOTASyncEditPoints; const AScript: IOTACodeTemplateScript; var Cancel: Boolean); var I: Integer; Guid: TGUID; P: IOTACodeTemplatePoint; Points: TStringList; begin Cancel := False; if not Assigned(ATemplate) then Exit; Points := TStringList.Create; try Points.Text := AScript.Script; for I := 0 to Points.Count - 1 do Points.Strings[I] := Trim(Points[I]); for I := 0 to Points.Count - 1 do if Points.ValueFromIndex[I] = 'NewGuid' then begin P := ATemplate.FindPoint(Points.Names[I]); if Assigned(P) then begin OleCheck(CoCreateGuid(Guid)); P.Editable := False; P.Value := '[''' + GUIDToString(Guid) + ''']'; end; end; finally Points.Free; end; end; function TNewGuidScriptEngine.GetIDString: WideString; begin Result := 'OndrejKelle.NewGuidScriptEngine'; end; function TNewGuidScriptEngine.GetLanguage: WideString; begin Result := 'NewGuidScript'; end; end.
将上述单元放入设计时间包中,将对designide.dcp的引用添加到其require子句中,并将该包安装在IDE中。
另一个有用的,类似的模板可能如下所示:
<?xml version="1.0" encoding="utf-8" ?> <codetemplate xmlns="http://schemas.borland.com/Delphi/2005/codetemplates" version="1.0.0"> <template name="iacc" surround="false" invoke="manual"> <point name="name"> <text> </text> <hint> Accessors name </hint> </point> <point name="guid1"/> <point name="guid2"/> <description> accessor declaration </description> <author> PMH </author> <script language="NewGuidScript" onvalidate="true"> guid1=NewGuid guid2=NewGuid </script> <code language="Delphi" context="any" delimiter="|"> <![CDATA[const SIID_I|name|Accessors = |guid1|; IID_I|name|Accessors: TGUID = SIID_I|name|Accessors; SIID_I|name| = |guid2|; IID_I|name|: TGUID = SIID_I|name|; type I|name|Accessors = interface [SIID_I|name|Accessors] end; I|name| = interface(I|name|Accessors) [SIID_I|name|] end;]]> </code> </template> </codetemplate>
这将声明字符串以及TGUID常量,并在接口声明中重用它们。在这种情况下,插入的GUID值不应该包含在方括号中。您有几个选项来调整脚本引擎来执行此操作:
>修改代码只是不使用方括号>引入一个单独的新功能NewGuidNoBrackets并在模板中使用它>引入一些简单的语法,如NewGuid(false),您的引擎可以解析并使用参数值来确定是否应使用方括号。