MWE: framebox and RTL issue

[mahmadzaid]

\begin[papersize=b6,class=plain]{document}
\use[module=packages.frametricks]
\use[module=packages.framebox]
\use[module=packages.rules]
\use[module=packages.color]
\nofolios
\neverindent
\define[command=sbox]{\framebox[bordercolor=#008000]{\color[color=#8b0000]{\process}}}
\define[command=hlght]{\color[color=#8b0000]{\process}}
\define[command=cmnt]{\breakframevertical\font[size=0.8em]{\color[color=#666666]{\process}}\smallskip}
\define[command=rtlframe]{\breakframevertical\thisframedirection[direction=RTL]}
\define[command=ltrframe]{\breakframevertical}
\font[family="Amiri",size=12pt]


\cmnt{LTR language:}

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

\bigskip

\cmnt{LTR}
\ltrframe
Lorem ipsum dolor sit amet, \sbox{consectetur adipiscing} elit, sed do eiusmod tempor \sbox{incididunt} ut labore et dolore magna aliqua.

\bigskip

\cmnt{RTL}
\rtlframe
Lorem ipsum dolor sit amet, \sbox{consectetur adipiscing} elit, sed do eiusmod tempor \sbox{incididunt} ut labore et dolore magna aliqua.

\medskip\fullrule\medskip

\cmnt{RTL language:}
\rtlframe
عندما يريد العالم أن يتكلّم، فهو يتحدّث بلغة \hlght{يونيكود}.

عندما يريد العالم أن يتكلّم، فهو يتحدّث بلغة \hlght{unicode}.

\bigskip

\cmnt{LTR}
\ltrframe
عندما يريد العالم أن يتكلّم، فهو يتحدّث بلغة \hlght{unicode}.

عندما يريد العالم أن يتكلّم، فهو يتحدّث بلغة \sbox{unicode}.

عندما يريد العالم أن يتكلّم، فهو يتحدّث بلغة \sbox{يونيكود}.

\bigskip

\cmnt{RTL}
\rtlframe
عندما يريد العالم أن يتكلّم، فهو يتحدّث بلغة \hlght{unicode}.

عندما يريد العالم أن يتكلّم، فهو يتحدّث بلغة \sbox{unicode}.

عندما يريد العالم أن يتكلّم، فهو يتحدّث بلغة \sbox{يونيكود}.

\end{document}

Notice how the highlighted arabic word is rendered with the letters in reverse order.

[Omikhleia]

Doesn't the same issue occur with a mere \hbox or a (from the rules package, deprecated but still there) \boxaround ?

[Omikhleia]

As far as I can tell, it does occur with a mere hbox and stock SILE 0.14.9

I am interested in a double-check (I can't read arabic, so I may miss some point), but I'm afraid it's a bug with SILE then. (And whenever fixed, we might have to check this package again, it has some "compatibility shim" still in place for earlier versions of SILE that might need to be revisited too).

But for the time being, it seems to me it's a SILE bug, that should be reported there.

[mahmadzaid]

I'm getting the same results with \hbox, so you're right, it's a SILE bug.

[Omikhleia]

Couldn't find an existing SILE issue that would correspond perfectly, so perhaps can your report it there? You'd be better at simplifying a MWE than I ^^
Note: I'd suggest removing the colors, as there are some issues with them in bidi mode, it seems.

[mahmadzaid]

reported to SILE here sile-typesetter/sile#1796