Excelent. and with little more doctoring I added the Function too. plus including the name that follows.

clear
TEXT TO cText NOSHOW TEXTMERGE
DEFINE CLASS test
	PROCEDURE init
		IF ATC("DEFINE CLASS",x)>0
		*
		ENDIF 
		IF ATC("PROCEDURE",x)>0
		*
		ENDIF 
		PROTECTED PROCEDURE something
		ENDPROC 
		HIDDEN PROCEDURE more_sss
		ENDPROC 
		FUNCTION me(xx)
		ENDFUNC 
	ENDPROC
ENDDEFINE 
ENDTEXT

RegExp = NEWOBJECT( "_RegExp", "RegExp.vcx" )
cpat = "^\s*(((hidd(e(n)?)?)|(prot(e(c(t(e(d)?)?)?)?)?))\s+)?((func(t(i(o(n)?)?)?)?)|(proc(e(d(u(r(e)?)?)?)?)?))\s*\w+"
? cpat
n=  RegExp.execute( ctext, cpat, .F., .T.)
? n
FOR i=1 TO n
	?
*	?? RegExp.Matches[i,1]
	?? RegExp.Matches[i,2]
*	?? substr(ctext, regexp.matches(i,1), 20)
NEXT 

>Looking for HIDDEN and PROTECTED modifiers, as well as the truncated forms of the keywords, is a very nice touch, Thierry. Well done.
>
>A different approach for the pattern that looks for PROCEDURE, but following your lead on those two aspects:
>
>

>m.RegEx.Pattern = "^\s*(((hidd(e(n)?)?)|(prot(e(c(t(e(d)?)?)?)?)?))\s+)?(proc(e(d(u(r(e)?)?)?)?)?)\s"
>

>
>
>
>>Hi Greg,
>>
>>Looking at modify class _regexp of Ffc\_regexp.vcx method execute, it misses the multiline option.
>>

>>LParameters tcStr, tlCaseMatters
>>
>>Local loRegEx, loMatch, loMatches, i
>>
>>loRegEx = CreateObject("VBScript.RegExp")
>>loRegEx.pattern = this.pattern
>>loRegEx.ignoreCase = !tlCaseMatters
>>loRegEx.global = .T.
>>
>>loMatches = loRegEx.execute(tcStr)
>>Dimension this.matches[Max(loMatches.count,1),2]
>>taMatchInfo = .F.
>>
>>i = 1
>>For Each loMatch In loMatches
>>	this.matches[i, 1] = loMatch.firstIndex + 1   && fox strings are not zero-based
>>	this.matches[i, 2] = loMatch.value
>>	i = i + 1
>>EndFor
>>
>>loMatches = .F.
>>loRegEx = .F.
>>
>>Return i -1
>>

>>
>>You need to instantiate "VBScript.RegExp" yourself:
>>

>>loRegEx = CreateObject("VBScript.RegExp")
>>loRegEx.pattern = this.pattern
>>loRegEx.ignoreCase = !tlCaseMatters
>>loRegEx.global = .T.
>>loRegEx.multiline = .T.
>>

>>
>>Then this pattern should work:
>>

>>(^[ \t]*(?=[_\u0041-\u005A\u005F\u0061-\u007A\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u00FF\u0152-\u0153\u0160-\u0161\u0178\u0192#@&=\?\.\\](?!&))(?:(?:HIDD(?:E|EN)?|PROT(?:E|EC|ECT|ECTE|ECTED)?)(?:[ \t]+|(?:[ \t]*;\s*?(?=&&|$).*?$\s+)))*(?:FUNC(?:T|TI|TIO|TION)?|PROC(?:E|ED|EDU|EDUR|EDURE)?)
>>

>>
>>
>>
>>>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.