Show HN: TeXbrain, a LaTeX editor that runs pdfTeX in the browser via WASM

(github.com)

33 points | by swimmingbrain 2 hours ago

4 comments

kccqzy 45 minutes ago
I copy-pasted a random LaTeX doc from many years ago (I made sure I wrote it before 2020 so it did not use any new features not in TeX Live 2020), and upon compilation I got the error
```
    Font OT1/cmr/m/n/10.95=cmr10 at 10.95pt not loadable: Bad metric (TFM) file.
```
on line 13017. The document had only 200 lines so this must be from a package. It was really not clear where the error was coming from. I guessed that it was coming from \usepackage{microtype}, so I commented it out, but the same error persisted.
I decided to hard refresh the tab and this time I got a different error:
```
    TeX capacity exceeded, sorry [text input levels=15].
```
on line 39. Again it was unclear line 39 of which package.
kccqzy 56 minutes ago
Does this work on Firefox or Safari? You say “Firefox or Safari fall back to a virtual filesystem” but somehow I can’t get this fallback to work. Is there a button to press to trigger the fallback?
[-]
- zahrevsky 47 minutes ago
  I'm on Safari, and it seems you can open your local LaTeX file to use the tool. It's an “Open file” button at the top.
  Although I agree that it would be cool to have some hello-world example pre-opened.
Gualdrapo 1 hour ago
This is super cool. I wish there was something like this for ConTeXt too.
[-]
- Wdorf 37 minutes ago
  My project https://latex.to supports ConTeXt (plus all other TeX Live engines). Click + then New from showcase then ConTeXt to try it.
- thangalin 28 minutes ago
  I wrote a Markdown -> ConTeXt -> PDF editor that may interest you.
  * https://keenwrite.com/
  * https://keenwrite.com/screenshots.html
copperx 1 hour ago
Well done!