On Thursday, 15 September 2016 at 11:39:13 UTC, Andrei
Alexandrescu wrote:
* ddoc has absolutely nada notion of rendering. To ask "how do
I render sqrt and aligned matrices with ddoc" does not compute.
Is there agreement on that?
D has absolutely no notion of "databases", but I think it's fair
to ask "how do I retrieve data from a database using D".
DDoc bare does not need a notion of rendering, but the base
system in place (call it the DDoc std lib) does need to present a
way for a user to end up with a math equation "rendered" well.
A great addition to DDoc would be to allow LaTeX bits, like
doxygen
does, and render it nicely for both web and PDF output. You
just mark a
piece of text as <LatexStartsHere>....<LatexOut>.
We already have that. Just use latex syntax inside \( \) and
import mathjax if you want to generate HTML, or do nothing else
to generate LaTeX.
Well, I'm pretty sure just typing \( \) and running `dmd -D` is
not going to give me the output that I want. Indeed it doesn't.
But, as you write, it's easy to make it happen. Full example:
```
/**
* Macros:
* DDOC =
* <!DOCTYPE html>
* <html lang="en-US">
* <head>
* <script type="text/javascript" async
src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-MML-AM_CHTML";>
* </script>
* <title>$(TITLE)</title>
* </head>
* <body><h1>$(TITLE)</h1>$(BODY)</body>
* </html>
*/
/**
* \[
* \mathbf{V}_1 \times \mathbf{V}_2 =
* \begin{vmatrix}
* \mathbf{i} & \mathbf{j} & \mathbf{k} \\
* \frac{\partial X}{\partial u} & \frac{\partial Y}{\partial
u} & 0 \\
* \frac{\partial X}{\partial v} & \frac{\partial Y}{\partial
v} & 0 \\
* \end{vmatrix}
* \]
*/
module ddoctest;
```
`dmd ddoctest.d -D -o-` produces an HTML file with nice looking
math in it.
Now, can we please add this question to stackoverflow, and add
this as an answer?
:)
