Flag 

Meaning 

rfRegularExpr 

Specifies whether regular expression is assigned. 

rfReplaceTemplate 

Specifies whether the string is replaced with template. 

rfKeepPosition 

Specifies whether position is kept after replacement. 

rfCaseSensitive 

Specifies whether case is considered while replace. 

rfWordBreakBound 

Specifies whether parts of text bounded with non-word symbols are replaces.