IFileDocument.PatternStatisticsRegExp2 Method

Automation:

void PatternStatisticsRegExp2 ( [in] String RegExp, [in] uint CodePage, [in] uint SubExpression, [in] enum RegExpFlags reFlags, [out] ulong pDataBuffer, [in] uint Blocks, [in] ulong StartFrom, [in] ulong Size) ;

Native (C++):

HRESULT PatternStatisticsRegExp2 ( [in] BSTR RegExp, [in] unsigned long CodePage, [in] unsigned long SubExpression, [in] enum RegExpFlags reFlags, [out] unsigned __int64 * pDataBuffer, [in] unsigned long Blocks, [in] unsigned __int64 StartFrom, [in] unsigned __int64 Size) ;

Parameters

RegExp A string that contains a regular expression. A regular expression must by in ECMAScript syntax. CodePage Code page for regular expression pattern encoding or CP_UNICODE (-5) for UTF-16. SubExpression The number of sub-match to search for. 0 means the entire expression. reFlags Flags that change the behavior of the function. May be one or more of the following values:

Flag	Value	Description
RegExpIgnoreCase	0x00000002	True to ignore case and false to match case.

pDataBufferPointer to the statistics bufferBlocksNumber of blocksStartFrom A start offset of the range. Must be a multiple of 2 if RegExpTypeUNICODE flag is specified. Size Range's size. Must be a multiply of 2 if RegExpTypeUNICODE flag is specified.

Return Value

S_OK or standard OLE error code.

Remarks

Calculates file statistics for a given regular expression. See the Pattern Statistics section for more information. On method return, the pDataBuffer buffer is filled with calculated statistics values. Complexity: linear-time, depending on the file's size and regular expression complexity.

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