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# # ## ### ##### ######## ############# ######################
## IMEI (International Mobile Equipment Identity)
## References
## http://en.wikipedia.org/wiki/IMEI
## http://www.3gpp.org/ftp/Specs/html-info/23003.htm
## Short notes
## 14-digit number + check digit.
## Embeds information on origin, model, and serial number of the device.
## Passes Luhn test as is.
# # ## ### ##### ######## ############# ######################
# 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 9
package require snit
package require valtype::luhn
package require valtype::common
# # ## ### ##### ######## ############# ######################
## Implementation
namespace eval ::valtype::imei {
namespace import ::valtype::common::*
}
snit::type ::valtype::imei {
#-------------------------------------------------------------------
# Type Methods
typemethod validate {value} {
if {[string length $value] != 15} {
badlength IMEI 15 "IMEI number"
}
return [valtype::luhn validate $value IMEI]
}
typemethod checkdigit {value} {
if {[string length $value] != 14} {
badlength IMEI 14 "IMEI number (without checkdigit)"
}
return [valtype::luhn checkdigit $value IMEI]
}
#-------------------------------------------------------------------
# Constructor
# None needed; no options
#-------------------------------------------------------------------
# Public Methods
method validate {value} {
$type validate $value
}
}
# # ## ### ##### ######## ############# ######################
## Ready
package provide valtype::imei 1.1
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