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#
# Here's the plan
# Kanan wants a way to manipulate $utime() values. Because theyre
# thrown about as two words, we cant actually have the math parser
# handle them automatically (alas), and writing built in functions
# just to do this seems like overkill. So i wrote these aliases for
# his (and your) convenience. Use this is as a starting point for you
# own alias needs, or drop me a line if you have more suggestions.
# (jnelson@acronet.net)
#
#
# Add two utimes.
#
alias utime_add
{
local sec,usec
@ sec = [$0] + [$2]
@ usec = [$1] + [$3]
if (usec > 1000000)
{
@ usec -= 1000000, sec++
}
@ function_return = sec ## [ ] ## right(6 000000$usec)
}
#
# Subtract two utimes. The LARGER utime (the more recent) should
# be the first one specified
#
alias utime_sub
{
local sec,usec
@ sec = [$0] - [$2]
@ usec = [$1] - [$3]
if (usec < 0)
{
@ usec += 1000000, sec--
}
@ function_return = sec ## [ ] ## right(6 000000$usec)
}
#
# You pass a utime as $0, $1, and this function will return
# how many useconds have passed since then.
#
alias time_since
{
local now $utime()
@ function_return = utime_sub($now $0 $1)
}
#hop'97
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