1valtype::imei(n)               Validation types               valtype::imei(n)
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NAME

8       valtype::imei - Validation for IMEI
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SYNOPSIS

11       package require Tcl  8.5
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13       package require snit  2
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15       package require valtype::common
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17       package require valtype::luhn
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19       package require valtype::imei  ?1?
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21       valtype::imei validate value
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23       valtype::imei checkdigit value
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DESCRIPTION

28       This package implements a snit validation type for an IMEI.
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30       A  validation type is an object that can be used to validate Tcl values
31       of a particular kind.  For example, snit::integer,  a  validation  type
32       defined  by the snit package is used to validate that a Tcl value is an
33       integer.
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35       Every validation type has a validate method which is  used  to  do  the
36       validation.  This  method  must take a single argument, the value to be
37       validated; further, it must do nothing if the value is valid, but throw
38       an error if the value is invalid:
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41                  valtype::imei validate .... ;# Does nothing
42                  valtype::imei validate .... ;# Throws an error (bad International Mobile Equipment Identity (IMEI) number).
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45       The  validate method will always return the validated value on success,
46       and throw the -errorcode INVALID on  error,  possibly  with  additional
47       elements which provide more details about the problem.
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API

50       The  API  provided  by this package satisfies the specification of snit
51       validation types found in the documentation of Snit's Not Incr Tcl.
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53       valtype::imei validate value
54              This method validates the value and returns it,  possibly  in  a
55              canonical  form,  if  it  passes. If the value does not pass the
56              validation an error is thrown.
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58       valtype::imei checkdigit value
59              This method computes a check digit for the value.  Before  doing
60              so  it  is validated, except for a checkdigit. If the value does
61              not pass the validation no check  digit  is  calculated  and  an
62              error is thrown instead.
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ERROR CODES

65       As  said  in the package description, the errors thrown by the commands
66       of this package in  response  to  input  validation  failures  use  the
67       -errorcode  INVALID  to  distinguish  themselves  from package internal
68       errors.
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70       To provide more detailed information about why  the  validation  failed
71       the  -errorCode  goes  actually  beyond that.  First, it will contain a
72       code detailing the type itself. Here this is IMEI. This  is  then  fol‐
73       lowed  by  values detailing the reason for the failure. The full set of
74       -errorCodes which can be thrown by this package are:
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76       INVALID IMEI CHARACTER
77              The input value contained one or more bad characters, i.e. char‐
78              acters which must not occur in the input for it to be an IMEI.
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80       INVALID IMEI CHECK-DIGIT
81              The  check  digit of the input value is wrong. This usually sig‐
82              nals a data-entry error, with digits transposed, forgotten, etc.
83              Of course, th input may be an outright fake too.
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85       INVALID IMEI LENGTH
86              The input value is of the wrong length to be an IMEI.
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BUGS, IDEAS, FEEDBACK

89       This  document,  and the package it describes, will undoubtedly contain
90       bugs and other problems.  Please report such in the category valtype of
91       the  Tcllib  Trackers  [http://core.tcl.tk/tcllib/reportlist].   Please
92       also report any ideas for enhancements you may have for either  package
93       and/or documentation.
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95       When proposing code changes, please provide unified diffs, i.e the out‐
96       put of diff -u.
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98       Note further that  attachments  are  strongly  preferred  over  inlined
99       patches.  Attachments  can  be  made  by  going to the Edit form of the
100       ticket immediately after its creation, and  then  using  the  left-most
101       button in the secondary navigation bar.
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KEYWORDS

104       Checking,  IMEI, International Mobile Equipment Identity, Testing, Type
105       checking, Validation, Value checking, cell-phone,  isA,  mobile  phone,
106       phone
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CATEGORY

109       Validation, Type checking
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112       Copyright (c) 2011 Andreas Kupries <andreas_kupries@users.sourceforge.net>
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117tcllib                                 1                      valtype::imei(n)
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