December 2002
Intermediate to advanced
672 pages
16h 53m
English
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Chapter 3. Dates and Times
Does anyone really know what time it is? Does anyone really care?
—Chicago
Introduction
Native XSLT 1.0 does not know what time it is and does not seem to care. However, dates and times are a necessary aspect of everyday life. The need to manipulate them arises frequently in computing, especially in web development. Therefore, it is surprising and unfortunate that standard XSLT does not have any built-in date and time support.
The examples in this section can help compensate for XSLT’s lack of support for dates and times. Unfortunately, one of the most crucial date and time capabilities cannot be implemented in XSLT—that is, getting the current date and time. For that, you need to call out to another language whose library supports interacting with the hardware’s real-time clock. Both Java and JavaScript have this capability. If your application just needs to format dates and times that already exist in a document, then the routines here should cover most needs.
Data and time manipulation and conversion can be tricky, but it is almost purely an exercise in intricate integer arithmetic involving what are essentially base conversions in a mixed radix system. Working with non-Gregorian calendars and determining holidays also requires quite a bit of historical, religious, and cultural knowledge. Readers with no application for date and time routines may wish to skip this chapter because little by way of XSLT technique is unique to these algorithms. Those who ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.