Custom string member function

[Davider]

Hi,

I created a string member function str.exist, but there is no output(Null) in M2, Why?

Thanks in advance for any suggestions and help
david


Macro M1
 

Code:

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str p="C:\Users\Administrator\Desktop\e"
out p ;;ok
if FileExists(p 1)
,out "Exists"
out p ;;ok

Macro M2
 

Code:

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str p="C:\Users\Administrator\Desktop\e"
out p ;;ok
if p.exist
,out "Exists"
out p ;;Null

Member function str.exist

Code:

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function# ;;Determine the file or folder exists

_s=this.searchpath
if empty(_s)
,ret 0
else
,ret 1