MathRen (TeX math rendering)

TeXfan

Bishwas-py We have made mathren compatible with the current version of flarum but the functionality of the plugin is insufficient for our purposes anyway.
For example there is no equation numbering or \eqnarray or \mbox. Let alone the cumbersome [math][/math] wrappers instead of $$.

We will try to implement MathJax in a new latex plugin. Should have it by the end of March 2021.

Geraldlzc

@Kylo do you have the latest update? 🤣

StarsRiver

Geraldlzc https://github.com/StarsRivers/flarum-mathren/

Kylo

`0.3.3`

Flarum v1.0.2 compatible
fof/best-answer compatible
Update KaTeX to v0.13.11 (see their changelog).

`0.3.4`

Fix usernames were rendering in .PostStream-item if they contains math delimiters (such as [math]username[/math]).

`0.3.5`

Fix posts in discussion won't render if you edit and save a post.
Fix posts in discussion won't render if you change route while editing a post.

ParlorPink

Kylo hi, I run into a problem that the rendering only works when I insert delimiters into codes. So I have to choose the expression first, type the expression and enclose it into codes <ctrl-'> to make it work.

Kylo

ParlorPink I can't reproduce this, any console logs, errors? What happens if you just type [math]x²[/math] and post it? Could you provide your forum's URL so maybe I can take a look at it?

ParlorPink

Kylo yeah, my url is bookclubforgrads.com The problem for me right now is [math]x²[/math] works but [math]\psi[/math] does not.

ParlorPink

Kylo also, it is not consistently rendered, after refreshing, the rendering is gone

Kylo

ParlorPink yeah something very strange going on there and I can't figure out why is that happening. There might be a conflict with another one, could you paste here your php flarum info output? And make sure you're on the latest version (which is 0.3.5)

ParlorPink

Kylo Flarum core 1.0.3
PHP version: 7.4.11
Loaded extensions: Core, date, libxml, openssl, pcre, zlib, bz2, calendar, ctype, curl, hash, filter, ftp, gettext, gmp, SPL, iconv, pcntl, readline, Reflection, session, standard, shmop, SimpleXML, mbstring, tokenizer, xml, bcmath, dom, fileinfo, gd, imagick, imap, intl, json, exif, mysqlnd, mysqli, PDO, pdo_mysql, pdo_sqlite, Phar, posix, soap, sockets, sqlite3, tidy, timezonedb, xmlreader, xmlrpc, xmlwriter, xsl, zip, Zend OPcache
+-----------------------+---------------+--------+
| Flarum Extensions | | |
+-----------------------+---------------+--------+
| ID | Version | Commit |
+-----------------------+---------------+--------+
| flarum-flags | v1.0.0 | |
| flarum-markdown | v1.0.1 | |
| the-turk-mathren | 0.3.5 | |
| flarum-approval | v1.0.0 | |
| flarum-bbcode | v1.0.0 | |
| flarum-emoji | v1.0.0 | |
| flarum-lang-english | v1.0.0 | |
| flarum-likes | v1.0.0 | |
| flarum-lock | v1.0.0 | |
| flarum-mentions | v1.0.0 | |
| flarum-statistics | v1.0.0 | |
| flarum-sticky | v1.0.0 | |
| flarum-subscriptions | v1.0.0 | |
| flarum-suspend | v1.0.0 | |
| flarum-tags | v1.0.3 | |
| glowingblue-rich-text | v2.0.4-beta.1 | |

kaifang

Hi, just to say, the tag [math] is not so friendly to me, since standard tag $ or $$ in LaTeX is much more efficeit.
Maybe it is a choice to discuss with FlaJax and make a nicer extension out of it... Good luck.

Kylo

kaifang actually I have that feature but decided to keep it unreleased 'cause I know it'll give us all nothing but headaches (i.e. Kylo) and lots of comments here just asking for support (and for free $). I can assure you it's more complex than you think, especially when it comes to single page application.

All FlaJax is doing rendering the whole page using Mathjax script and that's it, there's literally nothing that I could implement from it. And look all the features we got here just because we're not using the ordinary dollar signs as delimiters 🤷.

What makes you think using dollar signs are more efficient by the way?

kaifang

Kylo thanks for the comments.
I’m just a user of flarum without any js/php programming experience, but now I know the problem you’re facing.

I think $ is more efficient is that i got used to it and [math] is clearly longer to type right? Anyway, MathRen is nice, and thanks for your contribution!

Kylo

ParlorPink most likely the glowingblue-rich-text extension causing this issue, try disabling it.

ParlorPink

Kylo I disabled that extension and disabled more basic extensions, but still it doesn't work. Each time you post a new math equation, the previous comment will be rendered but the latest one won't. After refreshing everything is gone. Maybe there is more to look into for Flarum 1.0.3 ? btw thanks for looking into this for me!

Kylo

ParlorPink can't help if I can't reproduce it 🙁 need more feedback on this one.

ParlorPink

Kylo I understand. I recently reinstalled flarum and installed this extension first. still have the same problem. Do you know where I can acquire the error log for the test post we tested recently?

Kylo

ParlorPink I don't think it'll throw any errors, it's just behaving unexpected (Flarum logs are found at <flarum>/storage/logs, since you ask). Maybe it's related with KaTeX cdn? Or is it a cache related thing (php flarum cache:clear)? I'm not sure.

1Dot we have "decisive keywords" for that. Use [imath=ignore][/imath] or one of your custom decisive keyword that you set in extension settings. Or simply set code as ignored tag to skip rendering equations in code tag. Having said that, I wonder if you experiencing the same issues as @ParlorPink ?

`0.3.6`

Fix wrong KaTeX css version.

1Dot

Hello @Kylo Thanks for such a great extension can you please stop rendering equations in code like
[math]incode[/math] as I want to explain my users that how to use this but it also renders in code window, before that i was using Flajax which only renders in normal window.

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