Indicate LaTeX tags and page numbers for references

[ivlis]

References parsing is moved to get-ref-completions.coffee. The new module uses
an .aux file to extract references, which is much faster, then scanning all tex
files. Also, it is possible to extract information about tags and pages.

Drawback? The completions do not work if the tex file is not complied. But this
should not be a big deal, as we use this package to compile tex files anyway.

[ig0774]

Wouldn't it be better to use the .aux file, if present, but to fall-back to the current method if it isn't for whatever reason? Also will this work with \included files?

[ivlis]

The method was inspired by LaTeXbox for vim, which works with multiple files. I will check this.

It is not a big deal to implement the fallback, but direct scanning of tex files is very slow. I feel it rather painfully for my files having over 1000 lines.

[ivlis]

@ig0774 I added a fallback function, which implements the old functionality. The \input directive works. For \include this method doesn't work, as there is no aux file. For me having information about the latex tag and the page is much more important.

[ivlis]

@msiniscalchi Any progress on this?