[REBOL] /precise problem
From: rchristiansen::pop::isdfa::sei-it::com at: 27-Dec-2000 15:49
I'm working on updating my time-in-digits.r script so that it can use
the /precise refinement as provided in the /Core experimental.
However, I am running into a bit of a problem.
The thousandths-of-a-second are returned with either one, two, or
three decimal places, as such...
27-Dec-2000/15:36:52.739-6:00
27-Dec-2000/15:36:52.75-6:00
27-Dec-2000/15:36:52.76-6:00
27-Dec-2000/15:36:52.77-6:00
27-Dec-2000/15:36:52.78-6:00
27-Dec-2000/15:36:52.79-6:00
27-Dec-2000/15:36:52.8-6:00
27-Dec-2000/15:36:52.81-6:00
REBOL does not consistently return three decimal places for
thousandths-of-a-second (i.e. if the value is ".300" then it just returns
.3
)
No problem, I created a workaround where
current-time: now/time/precise
seconds: to-string current-time/second
split-seconds: parse/all seconds "."
whole-seconds: first split-seconds
partial-seconds: second split-seconds
while [(length? whole-seconds) < 2][insert whole-seconds "0"]
while [(length? partial-seconds) < 3][append partial-seconds "0"]
This appears to work until the thousandths-of-a-second value reaches
either 1,000 or zero (not sure how REBOL is handling this, which is
where the problem lies, I believe.)
Here is the output of my console in using my updated time-in-digits.r
script with the following usage:
forever [print time-in-digits now/precise]
20001227152414930
20001227152414930
20001227152414940
20001227152414940
20001227152414950
20001227152414950
20001227152414960
20001227152414960
20001227152414970
20001227152414970
20001227152414980
20001227152414980
20001227152414990
20001227152414990
** Script Error: Out of range or past end
** Where: time-in-digits
** Near: partial-seconds: second split-seconds
while [(length? whole-seconds) < 2]
Any clue as to what might be going on? Is REBOL returning four
decimal places when it reaches the next full second? Or is it
returning a "none" value? I'm not sure how to debug this. The script
follows. Thanks.
-Ryan
BTW: using 'help on 'now tells you the /precise refinement is
returning "nanosecond precision." Wouldn't that be nine decimal
places?
REBOL [
Title: "Date and time in digits"
Date: 27-Dec-2000
Name: 'time-in-digits
Version: 1.1.0
File: %time-in-digits.r
Author: "Ryan C. Christiansen"
Email: [norsepower--uswest--net]
Owner: "Ryan C. Christiansen"
Rights: "Copyright (C) Ryan C. Christiansen 2000"
Tabs: 4
Language: 'English
Purpose: {
Convert the date and time into a string of digits.
}
Comment: {
Use this function to create a string of digits denoting
the date and time. This is useful, especially with 'now
to create a reference number as to when a file, object,
etc., was created. If used with 'now to create a file
name, the newest file will always appear at the end of
a directory.
}
History: [
1.0.0 [12-June-2000 "posted to rebol.com" "Ryan"]
1.1.0 [27-Dec-2000 "updated for /precise refinement" "Ryan"]
]
Category: [util 2]
]
time-in-digits: func [
"Convert the date and time from 'now' into a string of digits."
sun-dial [date!] "The current date and time from 'now'"
][
year: to-string sun-dial/year
month: to-string sun-dial/month
if (length? month) < 2 [insert month "0"]
day: to-string sun-dial/day
if (length? day) < 2 [insert day "0"]
current-time: sun-dial/time
hour: to-string current-time/hour
if (length? hour) < 2 [insert hour "0"]
minutes: to-string current-time/minute
if (length? minutes) < 2 [insert minutes "0"]
seconds: to-string current-time/second
split-seconds: parse/all seconds "."
whole-seconds: first split-seconds
partial-seconds: second split-seconds
while [(length? whole-seconds) < 2][insert whole-seconds "0"]
while [(length? partial-seconds) < 3][append partial-seconds "0"]
rejoin [year month day hour minutes whole-seconds partial-seconds]
]
