Sort using a custom comparator: Difference between revisions
→{{header|Pascal}}: added example
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=={{header|Pascal}}==
{{works with|Free Pascal}}
<syntaxhighlight lang="pascal">
program CustomComparator;
{$mode objfpc}{$h+}
uses
Classes, SysUtils, Math;
function Compare(List: TStringList; Index1, Index2: Integer): Integer;
begin
Result := CompareValue(Length(List[Index2]), Length(List[Index1]));
if Result = 0 then
Result := CompareText(List[Index1], List[Index2]);
end;
const
Sample = 'Here are some sample strings to be sorted';
begin
with TStringList.Create do
try
AddStrings(Sample.Split([' '], TStringSplitOptions.ExcludeEmpty));
CustomSort(@Compare);
WriteLn(string.Join(', ', ToStringArray));
finally
Free;
end;
Readln;
end.
</syntaxhighlight>
{{out}}
<pre>
strings, sample, sorted, Here, some, are, be, to
</pre>
=={{header|Perl}}==
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