I don't have the fonts so I tested your example with
% \newfontfamily\arabicfont[Script=Arabic,Scale=1.2]{Amiri} % \newfontfamily\frenchfont{Times New Roman} % \newfontfamily\fontb[Script=Arabic, Scale=0.9]{AlBattar} % \newfontfamily\fonta[Script=Arabic, Scale=1.2]{AlBattar} % \newfontfamily\ttfont[Script=Arabic, Scale=1.2]{AlBattar} % \newfontfamily\myfont[Script=Arabic,Scale=1.3]{Sakkal Majalla} % \newfontfamily\na[Script=Arabic,Scale=0.9]{Amiri} % \newfontfamily\naa[Script=Arabic,Scale=0.8]{Amiri} \newfontfamily\arabicfont[Script=Arabic,Scale=1.2]{Al Tarikh} \newfontfamily\frenchfont{Times New Roman} \newfontfamily\fontb[Script=Arabic, Scale=0.9]{Al Tarikh} \newfontfamily\fonta[Script=Arabic, Scale=1.2]{Al Tarikh} \newfontfamily\ttfont[Script=Arabic, Scale=1.2]{Al Tarikh} \newfontfamily\myfont[Script=Arabic,Scale=1.3]{Al Tarikh} \newfontfamily\na[Script=Arabic,Scale=0.9]{Al Tarikh} \newfontfamily\naa[Script=Arabic,Scale=0.8]{Al Tarikh}
as Al Tarikh is available on my mac os as system font. Compiling with XeLaTeX I see some strange fontspec warning:
Package fontspec Warning: Font "Al Tarikh" does not contain requested Script (fontspec) "Arabic".
but the output may be ok: (caveat I don't read arabic, so apologies in advance)
The lines commanding this appear to be the following
{\toks0 \expandafter{\etocthelinkednumber}% \toks2 \expandafter{\etocthelinkedname }% % define the section node \edef\treenode {node {\the\toks2 \space\the\toks0}}
in the \etocsetstyle{section} hunk. So it already says to put the number on right, but perhaps it should actually be in output this opposite due to LTR ? maybe my output is all wrong... notice here the section numbers are below only due to the width which happens to shift them to a second line.
You can thus try to play with the order of things in the line
\edef\treenode {node {\the\toks2 \space\the\toks0}}
and use some TikZ syntax here perhaps to manage the node width.
Another fontspec warning is
Missing character: There is no (U+200F) in font Al Tarikh Regular/OT:language =dflt;!
Finally, trying lualatex gives an altogether different output:
No idea if this is TikZ problem or RTL rendering problem.
Back to xelatex and integrating these comments:
I need the section nombre before the section not after
locate the line after % define the section node which is \edef\treenode {node {\the\toks2 \space\the\toks0}} and replace it with \edef\treenode {node {\the\toks0 \noexpand\hspace{3mm}\the\toks2}}
i added a \hspace so you can configure spacing. The \noexpand is because this is in an \edef but expansion must be delayed. Also, I am assuming you still want RTL for the section number so 1.1, 2.1, 3.1 and not 1.1, 1.2, 1.3.
Output:
\toks2which contains the name, and not\toks0which contains the number, but your image appears to have chapter numbers.