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# # ## ### ##### ######## ############# ######################
## US NPI (National Provider Identifier) for Medicare services.
## Reference
## http://en.wikipedia.org/wiki/National_Provider_Identifier
## Short notes
## 10-digit number. No embedded information.
## Passes Luhn test when prefixed with '80480'.
# # ## ### ##### ######## ############# ######################
# The code below implements the interface of a snit validation type,
# making it directly usable with snit's -type option in option
# specifications.
# # ## ### ##### ######## ############# ######################
## Requisites
package require Tcl 8.5
package require snit
package require valtype::luhn
package require valtype::common
# # ## ### ##### ######## ############# ######################
## Implementation
namespace eval ::valtype::usnpi {
namespace import ::valtype::common::*
}
snit::type ::valtype::usnpi {
#-------------------------------------------------------------------
# Type Methods
typemethod validate {value} {
if {[string length $value] != 10} {
badlength US-NPI 10 "US-NPI number"
}
valtype::luhn validate 80480$value US-NPI
return $value
}
typemethod checkdigit {value} {
if {[string length $value] != 9} {
badlength US-NPI 9 "US-NPI number (without checkdigit)"
}
return [valtype::luhn checkdigit 80480$value US-NPI]
}
#-------------------------------------------------------------------
# Constructor
# None needed; no options
#-------------------------------------------------------------------
# Public Methods
method validate {value} {
$type validate $value
}
}
# # ## ### ##### ######## ############# ######################
## Ready
package provide valtype::usnpi 1
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