Alternate between right/left alignment in equations

[SUPERCILEX]

Fixes #460

[rpitasky]

The cases test image does not look very nice? What still needs to be done here, and can I help you in any way?

[SUPERCILEX]

Yeah that should be easily fixable with a parameter that starts with left alignment instead of right, just waiting on some other PRs to be merged.

[rpitasky]

Shouldn’t cases look correct by default?

…

On Sun, Apr 23, 2023 at 1:06 PM Alex Saveau ***@***.***> wrote: Yeah that should be easily fixable with a parameter that starts with left alignment instead of right, just waiting on some other PRs to be merged. — Reply to this email directly, view it on GitHub <#936 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A2QMYGKJQX546N4RUSBRVALXCVOR7ANCNFSM6AAAAAAXH7DJYI> . You are receiving this because you commented.Message ID: ***@***.***>

[SUPERCILEX]

Yeah I meant a parameter in rust, not in typst.

[Enivex]

That looks like a bug.

[Enivex]

Yeah that should be easily fixable with a parameter that starts with left alignment instead of right, just waiting on some other PRs to be merged.

In LaTeX the columns in cases are always left-aligned.
$$
\begin{cases}
a & x > y \
b+c & x\leq y+1
\end{cases}
$$

[rpitasky]

Regardless, why does this have to be a special case? Is it a special case in latex, too?

…

On Sun, Apr 23, 2023 at 3:17 PM Enivex ***@***.***> wrote: Yeah that should be easily fixable with a parameter that starts with left alignment instead of right, just waiting on some other PRs to be merged. In LaTeX the columns in cases are always left-aligned. $$ \begin{cases} a & x > y \ b+c & x\leq y+1 \end{cases} $$ — Reply to this email directly, view it on GitHub <#936 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A2QMYGM26HEZMJDL5GT5H33XCV53HANCNFSM6AAAAAAXH7DJYI> . You are receiving this because you commented.Message ID: ***@***.***>

[Enivex]

The only alignment that should be alternating from right to left is in the base equation environment. (Corresponding to align /alignat in latex)

Edit: Though like with matrices I guess it makes sense to make alignment optional for the one or two columns in the cases environment.

[SUPERCILEX]

This is ready, but it requires #749. If we don't want to go with tabular alignment, I'll need some guidance on what it means to alternate between right/left alignment: #460 (comment)