Provide g:vimtex_format_border_beginning and g:vimtex_format_border_end options to custom formatting rule

[wenpengy]

The function vimtex#format#formatexpr defined in format.vim script just supports s:border_beginning and s:border_end variables. Is it possible to provide global variables g:vimtex_format_border_beginning and g:vimtex_border_end for user?

For example, when format following codes using gqap:

\begin{figure}[htpb]
  \centering
  \includegraphics[scale=1.0]{fig1}
  \caption{A long title a long title a long title a long title a long title a long title a long title}%
  \label{f:fig1}
\end{figure}
``` latex

The result is :

``` latex
\begin{figure}[htpb] \centering \includegraphics[scale=1.0]{fig1}
  \caption{A long title a long title a long title a long title a long title a long title a long title}%
  \label{f:fig1}
\end{figure}
``` latex

The  expected result is:
``` latex
\begin{figure}[htpb]
  \centering
  \includegraphics[scale=1.0]{fig1}
  \caption{A long title a long title a long title a long title a long title
    a long title a long title}%
  \label{f:fig1}
\end{figure}

Therefore, it is very convenient for user to custom formatting style if you can provide global variables.

Thank you very much!

[lervag]

The function vimtex#format#formatexpr defined in format.vim script just supports s:border_beginning and s:border_end variables. Is it possible to provide global variables g:vimtex_format_border_beginning and g:vimtex_border_end for user?

Yes, that could be possible. But I'm curious, perhaps it is a better effort to instead improve the built-in private variables so everyone can benefit?

Of course, we could do both.