39 lines
1.1 KiB
Plaintext
39 lines
1.1 KiB
Plaintext
compile subroutine rights_conv(ConvType, DataIo, Branch, ReturnedValue)
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begin condition
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pre:
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post:
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end condition
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$insert logical
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declare function msg
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equ valid$ to 0 ;* successful
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equ invalid_msg$ to 1 ;* bad data - print error message window
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equ invalid_conv$ to 2 ;* bad conversion - " "
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equ invalid_nomsg$ to 3 ;* bad but do not print the error message window
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ReturnedValue = DataIo
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status() = Valid$
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ValidRights = 'RWDEP'
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*
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begin case
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case ConvType = 'ICONV'
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convert ' ' to '' in DataIo
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for j = 1 to len(DataIo) while ReturnedValue <> ''
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if index(ValidRights, DataIo[1,1], 1) else
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ReturnedValue = ''
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status() = invalid_msg$
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end
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next j
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case ConvType = 'OCONV'
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TempBase = ValidRights
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convert DataIo TO '' in TempBase
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convert TempBase to str(' ',len(TempBase)) in ValidRights
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ReturnedValue = ValidRights
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case otherwise$
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ReturnedValue = ''
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status() = invalid_conv$
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end case
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return
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