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need help with StringRegExp()

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I want to see if file extension is .doc or .xls but for some reason it returns always 1. I have file.dox so it should return 0 but it don't.

MsgBox(0,0,StringRegExp ( "file.dox", "[.doc.xls]" ,0 ))

i also tried

MsgBox(0,0,StringRegExp ( "file.dox", "[*.doc*.xls]" ,0 ))

but it didn't work either

Edited by E1M1


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$1 = "file.doc"  ; True
$2 = "file.xls"  ; True
$3 = "file.docx" ; False

; (?i) = case insensitive, \z = end of string, (?:doc|xls) = match 'doc' OR 'xls', 
; \. = match '.', \ = escape character to match special characters literally, like ., [, ( etc.

; So what this says is: 'Match anything that ends with either .DOC, .doc, .XLS or .xls'.
$regEx = "(?i)\.(?:doc|xls)\z"

MsgBox(0, "", StringRegExp($1, $regEx))
MsgBox(0, "", StringRegExp($2, $regEx))
MsgBox(0, "", StringRegExp($3, $regEx))

Edited by d4ni

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