Reply To: Calculating Age

Here is a quick and dirty I threw together.  Didn’t do a lot of testing

# Set array of days in a month

array set dom

-format “%Y %m %d”]

# Separate out YYYY, MM, and DD for both the birthday and now

regexp — {(….)(..)(..)} $birthday {} byr bmo bdy

lassign $now nyr nmo ndy

# Remove leading zeros so we can do math

foreach var “byr bmo bdy nyr nmo ndy” {

   set $var [string trimleft [set $var] 0]

}

# Compute days

# If Birthday days > now days the number of days is

# 0f days in last month – birthdate + now days

# also must take 1 away from months but remember 0 – 12

if {$bdy > $ndy} {

   incr nmo -1

   # if 0 or less set to 12 and decrement year

   if {$nmo <= 0} {        set nmo 12        incr nyr -1    }    set nodays $dom($nmo)    # Adjust for leap year if required    if {$nmo == 2 && [expr {$nyr %4}]} {incr nodays}    set days [expr {$nodays – $bdy + $ndy}] } else {    set days [expr {$ndy – $bdy}] } # Compute months if {$bmo > $nmo} {

   set months [expr {$bmo – $nmo}]

   incr nyr -1

} else {

   set months [expr {$nmo – $bmo}]

}

set years [expr {$nyr – $byr}]

echo AGE: $years Years, $months Months and $days Days

OK, all of you Tcl’ers.  What did I forget here  8)

Charlie