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Ingy döt Net 2026-02-01 16:33:20 -08:00
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102
Task/UPC/VBScript/upc.vb
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@ -1,102 +0,0 @@
'read UPC barcode Antoni Gual 10/2022 https://rosettacode.org/wiki/UPC
Option Explicit
Const m_limit ="# #"
Const m_middle=" # # "
Dim a,bnum,i,check,odic
a=array(" # # # ## # ## # ## ### ## ### ## #### # # # ## ## # # ## ## ### # ## ## ### # # # ",_
" # # # ## ## # #### # # ## # ## # ## # # # ### # ### ## ## ### # # ### ### # # # ",_
" # # # # # ### # # # # # # # # # # ## # ## # ## # ## # # #### ### ## # # ",_
" # # ## ## ## ## # # # # ### # ## ## # # # ## ## # ### ## ## # # #### ## # # # ",_
" # # ### ## # ## ## ### ## # ## # # ## # # ### # ## ## # # ### # ## ## # # # ",_
" # # # # ## ## # # # # ## ## # # # # # #### # ## # #### #### # # ## # #### # # ",_
" # # # ## ## # # ## ## # ### ## ## # # # # # # # # ### # # ### # # # # # ",_
" # # # # ## ## # # ## ## ### # # # # # ### ## ## ### ## ### ### ## # ## ### ## # # ",_
" # # ### ## ## # # #### # ## # #### # #### # # # # # ### # # ### # # # ### # # # ",_
" # # # #### ## # #### # # ## ## ### #### # # # # ### # ### ### # # ### # # # ### # # ")
' 0 1 2 3 4 5 6 7 8 9
bnum=Array("0001101","0011001","0010011","0111101","0100011"," 0110001","0101111","0111011","0110111","0001011")
Set oDic = WScript.CreateObject("scripting.dictionary")
For i=0 To 9:
odic.Add bin2dec(bnum(i),Asc("1")),i+1
odic.Add bin2dec(bnum(i),Asc("0")),-i-1
Next
For i=0 To UBound(a) : print pad(i+1,-2) & ": "& upc(a(i)) :Next
WScript.Quit(1)
Function bin2dec(ByVal B,a) 'binary,ascii of bit 1
Dim n
While len(b)
n =n *2 - (asc(b)=a) 'true is -1 in vbs
b=mid(b,2)
Wend
bin2dec= n And 127
End Function
Sub print(s):
On Error Resume Next
WScript.stdout.WriteLine (s)
If err= &h80070006& Then WScript.Echo " Please run this script with CScript": WScript.quit
End Sub
function pad(s,n) if n<0 then pad= right(space(-n) & s ,-n) else pad= left(s& space(n),n) end if :end function
Function iif(t,a,b) If t Then iif=a Else iif=b End If :End Function
Function getnum(s,r) 'get a number from code, check if its's reversed and trim the code
Dim n,s1,r1
'returns number or 0 if not found
s1=Left(s,7)
s=Mid(s,8)
r1=r
Do
If r Then s1=StrReverse(s1)
n=bin2dec(s1,asc("#"))
If odic.exists(n) Then
getnum=odic(n)
Exit Function
Else
If r1<>r Then getnum=0:Exit Function
r=Not r
End If
Loop
End Function
Function getmarker(s,m) 'get a marker and trim the code
getmarker= (InStr(s,m)= 1)
s=Mid(s,Len(m)+1)
End Function
Function checksum(ByVal s)
Dim n,i : n=0
do
n=n+(Asc(s)-48)*3
s=Mid(s,2)
n=n+(Asc(s)-48)*1
s=Mid(s,2)
Loop until Len(s)=0
checksum= ((n mod 10)=0)
End function
Function upc(ByVal s1)
Dim i,n,s,out,rev,j
'forget about the leading adn trailing spaces, the task says they may be wrong
s=Trim(s1)
If getmarker(s,m_limit)=False Then upc= "bad start marker ":Exit function
rev=False
out=""
For j= 0 To 1
For i=0 To 5
n=getnum(s,rev)
If n=0 Then upc= pad(out,16) & pad ("bad code",-10) & pad("pos "& i+j*6+1,-11): Exit Function
out=out & Abs(n)-1
Next
If j=0 Then If getmarker(s,m_middle)=False Then upc= "bad middle marker " & out :Exit Function
Next
If getmarker(s,m_limit)=False Then upc= "bad end marker " :Exit function
If rev Then out=strreverse(out)
upc= pad(out,16) & pad(iif (checksum(out),"valid","not valid"),-10)& pad(iif(rev,"reversed",""),-11)
End Function