I have a master document, and use many input{...} commands to compile the total document from many parts.

I would like to mark on the working document, the start of each new input, and, what the filename was at that point.

I could renew the \input{..} command, but I do not want the mark to disrupt what would otherwise be the standard ouput, ie, the mark should be an underlay / watermark.

Is there a package that does this, I am thinking something similar to what the showkeys package does.

I had the following in mind, to create a label whenever input is used, relying on showkeys do do the underlying marking on the document, but it isn't working:

  • Are you using \input inside floats as well?
    – Werner
    May 22 '13 at 4:53
  • possibly, assume yes. May 22 '13 at 4:57
  • in fact, definitely yes. May 22 '13 at 4:58
  • Do the \inputed files contain verbatim content?
    – Werner
    May 22 '13 at 4:59
  • 1
    LaTeX's \input is set up to allow both plain TeX and LaTeX-like syntaxes. You probably want to redefine \@iinput, which is used internally with the LaTeX-like version.
    – Joseph Wright
    May 22 '13 at 6:01

The LaTeX definition of \input is designed to allow both the standard LaTeX braced-argument syntax


and the original primitive syntax

\input filename % Space-terminated

However, you've redefined it such that it will only work with the LaTeX syntax. If you take a peek at the definition of \input, you'll find that the LaTeX syntax branch is handled by \@iinput. So that's the place to make a change


This assumes that you don't want to track use of the primitive syntax use, which is probably being used only by cross-format packages like pgf.

  • What would be the best way to place a horizontal rule (dashed) the width of the page, at the label location, without shifting any of the subsequent content down in any way, ie, non-disruptive? May 22 '13 at 20:11

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