- From: Deyan Ginev <deyan.ginev@gmail.com>
- Date: Wed, 7 Dec 2022 13:12:00 -0500
- To: "David W. Farmer" <farmer@aimath.org>
- Cc: www-math@w3.org
- Message-ID: <CANjPgh82-mq1crB7RS6Wj-BwtMpMzWa9gzN-==+=4+Lnu-32FQ@mail.gmail.com>

Hi David, Just a quick comment you may find underwhelming - "absolute value" is not a MathML Core construct in any sense, so the file I had in mind wouldn't test that. A file testing "intent" would, but that's (for the current discussion) a separate topic. I think the relevant TeX test for MathML Core would be: \left| A \right| where we'd like to generate the layout-oriented: <mo fence="true">|</mo> <mi>A</mi> <mo fence="true">|</mo> Another related comment is that such a test file wouldn't target the "canonically correct" MathML Core tree, but rather "one of the many possible" MathML Core trees - as there is a lot of room for advanced customization in styling, as well as element scaffolding (e.g. the granularity of wrapping <mrow> elements). Greetings, Deyan On Wed, Dec 7, 2022 at 1:01 PM David W. Farmer <farmer@aimath.org> wrote: > > It is a good idea to have a LaTeX file that tests MathML core. > It will also serve as a quick way for people to see how to > author various constructions. > > Are there ideas for how the LaTeX source will be aware that > |A| > means absolute value (or whichever of the many other > things it might mean)? > > I think it is reasonable to have several macros > > \abs{A} > \det{A} > \card{A} > > all of which render as > |A| . > But where is the information which provides the intent? > > > On Wed, 7 Dec 2022, Deyan Ginev wrote: > > > Hi Lorenzo, > > > > Great to hear that LyX has a MathML generator, I wasn't aware of that. I > see that it's written in C++ and covers a > > lot of territory. Cool! > > Including LyX in the W3C page is exactly what we would want to do, > especially if you're planning a MathML Core > > update. > > > > As to "transition guides": > > 1. I think it will be very useful if we could prepare a large "vanilla" > LaTeX document full of equations, which > > exercises all of MathML Core. That way any latex-based generator can > have a baseline for browser testing. > > 2. It may also be useful to have an itemized list of the small changes > (such as <mo> no longer allowing the > > "accent" attribute), which developers could use as a "checklist" while > refactoring their code. > > > > Maybe some of these kinds of resources already exist? I could help with > compiling the LaTeX doc if need be, but > > the itemized list will likely require the time of the usual MathML Core > suspects. > > > > Greetings, > > Deyan > > > > > > On Wed, Dec 7, 2022 at 11:45 AM Lorenzo Bertini < > lorenzobertini97@gmail.com> wrote: > > Il 06/12/22 09:04, Frédéric WANG ha scritto: > > > Hello, > > > > > > For historical reasons, many MathML generators are based on > MathML 3, or > > > even the subset supported by Firefox. Now that browsers have > been moving > > > to MathML Core, it would be good to have a list of tools that > have been > > > updated to be more aligned with MathML Core (for some definition > of > > > "aligned") and be recommended for users. > > > > > > We already have https://www.w3.org/wiki/Math_Tools but I'm not > sure it's > > > really up-to-date (even the two links of the Browsers section > are broken > > > and the CG's polyfills are not listed...). Perhaps it should be > > > refreshed and reorganized so users targeting native browser > support can > > > more easily find relevant tools? > > > > > > To start the discussion: > > > > > > - We can probably remove "Mozilla Gecko/Firefox" and "Apple > WebKit" from > > > the list, since all the three main engines are going to support > MathML > > > Core. > > > - I'm still maintaining TeXZilla and it was updated in 2019 > during the > > > MathML Core simplification (although it may probably still > generate > > > non-MathML Core features in some rare cases). > > > > > > This idea originated from the MDN discussions at > > > https://github.com/mdn/content/pull/22640. > > > > > > > I highly suggest adding LyX (https://www.lyx.org/) to the list. > It is an > > actively maintained document processor that can output in a > variety of > > formats, including HTML/Docbook/Epub with MathML math. I've been > > authoring MathML ebooks for the longest time with it. > > > > Also, I think the "others" category should be renamed to "Document > > processors". > > > > On a side note, I sometimes send patches for LyX about MathML > output. > > What would I need to do to make it MathML core compliant? > > > > Thanks, > > -- > > Lorenzo > > > > > >

Received on Wednesday, 7 December 2022 18:12:41 UTC