Bod has asked for the wisdom of the Perl Monks concerning the following question:

I need to write a relatively simple web based calendar display...I'm happy with a list view but my Head of Marvellous Marketing has troubles with list views!

Looking at HTML::Calendar::Simple it appears to do most, if not all of what I need. But I cannot install it on our webserver as it requires compiler access which is disabled. Before I write something, probably in Javascript, are there any other Pure Perl alternatives that I should consider?

Replies are listed 'Best First'.
Re: HTML::Calendar alternative
by no longer just digit (Beadle) on Mar 13, 2021 at 23:59 UTC

    I released this to CPAN, but it is still in "testing phase" though so it doesn't show up in the metacpan search results yet. It doesn't require XS or a compiler to work. Edit: I just remembered after I went out that unfortunately it requires XS indirectly since it is based on HTML::Make, which uses HTML::Valid::Tagset, which is an XS module.

    The date calculation part is based on Date::Calc.

    HTML::Make::Calendar is an oddity in that it uses an HTML generator, like a stack of HTML tags, rather than using the template methods which most people seem to prefer.

    The HTML in the metacpan version above is slightly odd-looking because of metacpan's style being imposed on it. If you're really really interested about metacpan, see here.

    Here is the output of one of the examples from my module:

    March 2021
    Mo Tu We Th Fr Sa Su
    🌕 1 🌕 2 🌖 3 🌖 4 🌖 5 🌖 6 🌗 7
    🌗 8 🌗 9 🌘 10 🌘 11 🌘 12 🌘 13 🌑 14
    🌑 15 🌑 16 🌑 17 🌒 18 🌒 19 🌒 20 🌒 21
    🌓 22 🌓 23 🌓 24 🌓 25 🌔 26 🌔 27 🌔 28
    🌕 29 🌕 30 🌕 31

    Since it might be useful I uploaded version 0.01 to CPAN. There is also a list of other modules which I found, so if this one doesn't suit you, those might.

[reply]

      That looks interesting...

      Thanks - I shall see if I can get the XS modules installed. Although I have done what I needed to with HTML::Calendar::Simple, I have a feeling that I am going to need another calendar display before too long...

[reply]
        I had a look at trying to de-XS HTML::Valid::Tagset and make it some kind of standalone but it is a big job. The tags are read in from the html-tidy library from the W3 consortium. I thought perhaps I would be able to just read them once and make a big text file and then have the module just read the text file without the library being involved, but it is a bit of a mess. It's meant to be a replacement for HTML::Tagset so there are lots of funny things in that.
[reply]
Re: HTML::Calendar alternative
by hippo (Archbishop) on Mar 12, 2021 at 13:41 UTC
    it requires compiler access

    Are you sure? I don't immediately see anything in there which requires compilation.

    🦛

[reply]
      It depends on Date::Simple which contains an XS file.

      map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]
[reply]
[d/l]

        Indeed it does. However, the Date::Simple Makefile.PL shows that simply specifying a noxs argument should avoid that and build a pure-perl version instead.

        🦛

[reply]
[d/l]

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