Re: DTD

I use it to verify that my application is generating valid config files.

So yes. At least one person still uses it. ;-)


On Fri, Mar 30, 2018, 6:04 PM Lawrence D'Oliveiro <[email protected]>
wrote:

> On Fri, 30 Mar 2018 18:41:34 +0000, Jerry Casiano wrote:
>
> > I would consider [the lack of a DTD] a bug if I used Debian.
>
> Does anybody still use DTDs for anything? They may have made sense with
> SGML, but HTML, for example, does so much more with CSS instead. And as
> for XML, it seems to me a DTD is neither necessary nor sufficient to
> capture the semantics of most real-world applications.
>
> Fontconfig being a case in point: half of fonts.dtd is comments
> explaining what the constructs actually mean. And much of the rest is
> essentially content-free syntax like
>
>     <!ELEMENT dir (#PCDATA)>
>     <!ELEMENT family (#PCDATA)>
>     <!ELEMENT int (#PCDATA)>
>     <!ELEMENT double (#PCDATA)>
>     <!ELEMENT string (#PCDATA)>
>     <!ELEMENT bool (#PCDATA)>
>     <!ELEMENT const (#PCDATA)>
>
> And things like
>
>     <!ELEMENT plus (%expr;)*>
>     <!ELEMENT minus (%expr;)*>
>     <!ELEMENT times (%expr;)*>
>     <!ELEMENT divide (%expr;)*>
>     <!ELEMENT not (%expr;)>
>
> convey that these operators are recognized and can take multiple
> operands, but nothing more.
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