Have been trying to construct a Regular Expression pattern to find a string that only exists at the beginning of a line, even if there are none or more white spaces before it (either spaces or tabs).

Example text I'm search

DEFINE CLASS test
	PROCEDURE init
		IF ATC("DEFINE CLASS",x)>0
		*
		ENDIF 
		IF ATC("PROCEDURE",x)>0
		*
		ENDIF 
	ENDPROC
	PROCEDURE destroy
	ENDPROC
ENDDEFINE 

If I am look for the "DEFINE CLASS" (ignoring the case), I would like for it to find only the "DEFINE CLASS test". Also, If I am looking for "PROCEDURE", I want it to find only the "PROCEDURE init" and "PROCEDURE destory", not the one in the ATC().

Here is a example of the search code I am trying.

RegExp = NEWOBJECT( "_RegExp", "RegExp.vcx" )
ctext=FILETOSTR("tt.prg")
? RegExp.execute( ctext, [(\bdefine class\b)], .F., .T.)
? RegExp.execute( ctext, [(\bprocedure\b)], .F., .T.)

I realize I need to be including the '^' (start of line), possibly '\s*' for the white spaces. but when I do include them the query fails to find anything. I only want it to find matches that are at the beginning of the lines.