Regex.GetSubString Method

Returns a matched substring from a regex handle.

Substring ids start at 0 and end at captures-1, where captures is the number returned by Regex.Match or Regex.CaptureCount.

bool GetSubString(int str_id, char[] buffer, int maxlen, int match)

Parameters

int str_id

The index of the expression to get - starts at 0, and ends at captures - 1.

char[] buffer

The buffer to set to the matching substring.

int maxlen

The maximum string length of the buffer.

int match

Match to get the captures for - starts at 0, and ends at MatchCount() -1

Return Value

True if a substring was found, False on fail/error

Notes

str_id = 0 is the full captured string, anything else is the capture group index. if Regex.Match is used match can only be 0