Thread overview
D syntax highlight support by Chroma in Hugo
May 22
Dennis
May 22
Recently, I sent a PR [1] in Chroma (syntax highlighter) to support D. I think my implementation is not perfect. I made this announcement to ask some experts for help and to ask Dlang blogger to use this.

At this time, if you wanna write D code snippet in Hugo (static site generator), you can use my forked Hugo [2] or Linux x64 binary [3].

[1] https://github.com/alecthomas/chroma/pull/249
[2] https://github.com/ShigekiKarita/hugo/tree/dlang
[3] https://github.com/ShigekiKarita/hugo/releases/download/dlang-v1/hugo.tar.xz
May 22
On Wednesday, 22 May 2019 at 01:36:46 UTC, Shigeki Karita wrote:
> Recently, I sent a PR [1] in Chroma (syntax highlighter) to support D.

Thanks for doing that!

> I think my implementation is not perfect. I made this announcement to ask some experts for help and to ask Dlang blogger to use this.

Some observations:
- Multi-line comments starting with /+ are nested. You can't express this with pure regular expressions however, it requires a context-free grammar. Maybe Go has some regex extensions that allow it to parse context-free constructs however, I don't know.
- Integer literals can end with L, u, U, Lu, LU, uL, UL. Your regex doesn't allow u or U and does allow lower case l.
- "TODO support delimited strings" that will be hard, as delimited strings are not even context-free, let alone regular. I've never seen them used, so I don't think it's bad if they can't be highlighted properly.
- octal literals are not longer supported in D.
- In character literals you support \u but no \U or octal numbers
- string, wstring and dstring are not actually keywords, they are aliases that are automatically imported. I do think it makes sense to highlight them as keywords however, given how they are used like basic types.
May 24
On Wednesday, 22 May 2019 at 01:36:46 UTC, Shigeki Karita wrote:
> Recently, I sent a PR [1] in Chroma (syntax highlighter) to support D. I think my implementation is not perfect. I made this announcement to ask some experts for help and to ask Dlang blogger to use this.

Thank you for working on this.

Did you have a practical reason to work on this considering that Hugo supports Pygments, and Pygments has decent support for D already?

Here are the test files I used when working on D syntax highlighting in other projects, perhaps they can be useful:

https://github.com/colorer/Colorer-schemes/blob/master/hrc/test/other/d-sample.d

https://github.com/Emacs-D-Mode-Maintainers/Emacs-D-Mode/tree/master/tests