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function getmidstr(L,R,str)
s = ""
int_left = instr(str,L)
int_right = instr(str,R)
While(int_left<>0)
s = s & mid(str,int_left+len(L),int_right-int_left-len(L)) & "|"
int_left = instr(int_right, str,L)
If int_left<>0 Then int_right = instr(int_left, str,R)
Wend
If s<> "" Then s = Left(s, len(s)-1)
getmidstr = s
end Function