[Overview][Resource strings][Constants][Types][Procedures and functions][Index] Reference for unit 'unicodedata' (#rtl)

IncrementalCompareString

Compare 2 strings using the specified collation

Declaration

Source position: unicodedata.pas line 523

function IncrementalCompareString(

  const AStrA: PUnicodeChar;

  const ALengthA: SizeInt;

  const AStrB: PUnicodeChar;

  const ALengthB: SizeInt;

  const ACollation: PUCA_DataBook

):Integer; overload;

function IncrementalCompareString(

  const AStrA: UnicodeString;

  const AStrB: UnicodeString;

  const ACollation: PUCA_DataBook

):Integer; overload;

Arguments

AStrA

  

First string in comparison.

ALengthA

  

Length of string AStrA.

AStrB

  

Second string in comparison.

ALengthB

  

Length of string AStrN

ACollation

  

Collation to use.

Function result

A signed integer indicating the alphabetic order of AStrA and AStrB.

Arguments

AStrA

  

First string in comparison.

AStrB

  

Second string in comparison.

ACollation

  

Collation to use.

Description

IncrementalCompareString creates 2 compare keys from the strings AStrA and AStrB using collation data in ACollation. The keys are computed only to the point where the two strings differ. This means the keys cannot be reused for other comparisons if the strings differ. The two strings can be specified as a unicode string or as a pointer to a null-terminated character array with a length (ALengthA and ALengthB). It returns then the result of CompareSortKey.

Errors

None.

See also

ComputeSortKey

  

Compute the sort key for a string

CompareSortKey

  

Compare two sort keys.


Documentation generated on: Jun 22 2020