Identifies the current text pattern to match.
Declaration:
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AT_ERRCOUNT ACCUAPI IG_REC_approx_regex_pattern_get( const HIG_REC_APPROX_REGEX higRecApproxRegex, LPAT_WCHAR **const pattern_array, AT_INT *const pattern_size ); |
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Arguments:
| higRecApproxRegex | The handle to an approximate regex instance. |
| pattern_array | The far pointer indicating where to return the current vector of text patterns to match. Each pattern is expressed as a UTF-16 string. The caller is responsible for releasing the copy of vector of text patterns returned here using IG_REC_wstring_array_free. |
| pattern_size | The far pointer indicating where to return the current count of text patterns in the pattern array. |
Return Value:
The number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.Supported Raster Image Formats:
This function does not process image pixels.
Remarks:
The approximate regex supports POSIX 1003.2 Extended Regular Expression (ERE) syntax and the Basic Regular Expression (BRE) syntax. Callers specify patterns that match text to match.
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Look-ahead and look-behind are not supported. |
The default value is ".+"
The caller is responsible for releasing the array of text patterns returned here using IG_REC_wstring_array_free.
Example:
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AT_ERRCOUNT errCount = 0 ;
HIG_REC_APPROX_REGEX higRecApproxRegex = 0 ;
LPAT_WCHAR* pattern_array = 0 ;
AT_INT pattern_size = 0 ;
IG_REC_approx_regex_create( &higRecApproxRegex ) ;
errCount = IG_REC_approx_regex_pattern_get
( higRecApproxRegex,
&pattern_array,
&pattern_size
) ;
IG_REC_wstring_array_free( pattern_array , pattern_size ) ;
IG_REC_approx_regex_delete( higRecApproxRegex ) ;
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