在Delphi中自定义排序方法来排序字符串列表 [英] custom sort method in Delphi to sort list of strings
问题描述
a_1.xml
a_20.xml
a_10.xml
a_2.XML
当我使用快速排序排序
文件名时,它会按如下方式排列文件名称
a_1.xml
a_10.xml
a_2.xml
a_20.XML
但是,我希望以下列方式对文件名进行排序:
a_1.xml
a_2.xml
a_10.xml
a_20.XML
任何帮助将不胜感激。
您可以使用Explorer使用的相同的比较功能,即 StrCmpLogicalW
。
function StrCmpLogicalW(psz1,psz2:PWideChar):Integer;标准
external'shlwapi.dll';
函数StrCmpLogical(const s1,s2:string):整数;
begin
结果:= StrCmpLogicalW(PChar(s1),PChar(s2));
结束
如果您的字符串在 TStringList
那么您可以使用其 CustomSort
方法。这个预期是这种形式的比较函数:
TStringListSortCompare = function(List:TStringList;
Index1,Index2:Integer ): 整数;
所以,feed CustomSort
这个功能: / p>
function StringListCompareLogical(List:TStringList;
Index1,Index2:Integer):Integer;
begin
结果:= StrCmpLogical(List [Index1],List [Index2]);
结束
I am trying to sort a list of files (they are stored as list of strings) in Delphi whose names look like below
a_1.xml
a_20.xml
a_10.xml
a_2.XML
when i use quick sort to sort
the file names, it sorts the file names as below
a_1.xml
a_10.xml
a_2.xml
a_20.XML
But, I want the file names to be sorted in the below fashion
a_1.xml
a_2.xml
a_10.xml
a_20.XML
Any help will be greatly appreciated.
You can use the same compare function that Explorer uses, namely StrCmpLogicalW
.
function StrCmpLogicalW(psz1, psz2: PWideChar): Integer; stdcall;
external 'shlwapi.dll';
function StrCmpLogical(const s1, s2: string): Integer;
begin
Result := StrCmpLogicalW(PChar(s1), PChar(s2));
end;
If you have your strings in a TStringList
instance then you can use its CustomSort
method. This expects a compare function of this form:
TStringListSortCompare = function(List: TStringList;
Index1, Index2: Integer): Integer;
So, feed CustomSort
this function:
function StringListCompareLogical(List: TStringList;
Index1, Index2: Integer): Integer;
begin
Result := StrCmpLogical(List[Index1], List[Index2]);
end;
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