Significant .lyx EOL White Space Inquiry

[Richard Kimberly Heck]

On 12/14/20 1:54 PM, José Abílio Matos wrote:
>
> On Monday, December 14, 2020 5:46:52 PM WET Richard Kimberly Heck wrote:
>
> > I think that the real reason that we use this scheme is due to how we
>
> > represent insets in the file format, we always change line.
>
> >
>
> > That is what IMO forbids the equivalence between spaces and newlines 
> in the
>
> > lyx file format.
>
> >
>
> >
>
> > If we find a solution for the previous questions this can be 
> implemented in
>
> > lyx2lyx.
>
> >
>
> > The obvious thing to do would be always to break lines at spaces. 
> But then
>
> > how do we handle the case of languages that don't use spaces to separate
>
> > words?
>
>
> One simple example to illustrate what I mean, even assuming that the 
> space is our word separator. What should be the file format of the 
> latex paragraph?
>
>
> The most famous equation of all times is $E=mc^2.$
>
>
>
> How do we represent the space between "is" and the math inset?
>
>
>
> Now we do (pardon me the markdown syntax :-) ):
>
>
> ``` lyx
>
> \begin_layout Standard
>
> The most famous equation of all times is
>
> \begin_inset Formula $E=mc^{2}.$
>
> \end_inset
>
>
>
> \end_layout
>
> ```
>
>
> What would be the alternative? To have a space before the 
> \begin_layout? That does not seem right and it would complicate our 
> parsing a lot.
>
>
> The option I am thinking, although a bit ugly, would be:
>
>
> ``` lyx
>
> \begin_layout Standard
>
> The most famous equation of all times is
>
> \space
>
> \begin_inset Formula $E=mc^{2}.$
>
> \end_inset
>
>
>
> \end_layout
>
> ```
>
>
> That would mean that we have a special syntax for a line with a single 
> space.
>
I hadn't considered this case. It will also occur, of course, with 
footnotes and, indeed, every kind of inset. I can't think of any 
reasonable alternative to your solution. We could presumably write 
\space at the end of the previous line, but I think that would be harder 
to implement. The lyx2lyx part would actually be quite simple. The 
changes to the parser, and to the write routines, would be more involved.

Riki



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