Markdown strikethrough with double tildes

[pacien]

Is your suggestion related to a problem? Please describe.

Markdown formatting should support strike-through with ~~.

Using HTML tags is both unintuitive and inconvenient. Friends coming from Discord or Github users now expect most Markdown formatting to work and are heavily frustrated by the partial support. We always get bitten by this small discrepancy and have to edit messages afterwards.

Describe the solution you'd like

Allow the use of ~~ to strike text through: ~~some text~~ should be rendered as some text.

Describe alternatives you've considered

HTML tags such as <del>, <s> and their closing counterparts are annoying to type in the middle of conversations. That's why we have Markdown instead of HTML or BBCode in the first place for italic and bold text.

Switching from Markdown to the formatting toolbar back and forth solely to strike text through is cumbersome too.

Additional context

The CommonMark library used by Riot doesn't support ~~ by default, but some extensions seem to exist to fill that gap.

Related issue: element-hq/element-web#9330

[turt2live]

as you've noted in the issue, we use commonmark and this is a limitation of that. Will leave this open to track the request given this and 9330 aren't the first issues to complain about this...

[SaphireLattice]

Perhaps it would be a good idea to switch from CommonMark to a different Markdown parsing library that supports GitHub flavoured markdown, one of the most commonly used markdown variations?

[t3chguy]

@SaphireLattice that's https://github.com/vector-im/riot-web/issues/5940

[aaronraimist]

This doesn't need an old-composer label

[d-a-v]

Only strikethrough(<del>strikethrough</del>) is supported by today's elements.io.

This is easy to type on a real keyboard, but not so much on a smartphone touchscreen.

For those who wish to follow this up, this might be the still-opened related issue from 2017 in the CommonMark repository.

[nadonomy]

Edited the title as I failed to find this issue via search (strikethrough doesn't have a hyphen, and I keyword stuffed a bit).

[t3chguy]

GFM has its own issue #330 and keyword stuffing works in comments too

[t3chguy]

Also Github's strikethrough is single tilde test

[Abastro]

As this is not going to be fixed seeing current states, guess I should consider moving to other matrix client.
EDIT: just ditched matrix for good, it simply does not work.

[tmonz]

any news?

[ggPeti]

Not even <del> works on Element Android. There is currently no way to write strikethrough text on Element Android.

[gabrc52]

Element Android includes a rich text editor so you could file an issue there instead, to add support for strikethrough.