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[Octave-bug-tracker] [bug #52773] PDF user manual breaks up index entrie


From: Dan Sebald
Subject: [Octave-bug-tracker] [bug #52773] PDF user manual breaks up index entries for graphics properties in strange way
Date: Mon, 1 Jan 2018 21:46:38 -0500 (EST)
User-agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:55.0) Gecko/20100101 Firefox/55.0

Follow-up Comment #1, bug #52773 (project octave):

I've looked at this one just a bit.  I've confirmed that xpdf has the same
behavior as xreader.  It's clear that the Texinfo input doesn't matter.  I.e.,
this


@table @asis

@anchor{XREFfigurealphamap}
@cindex figure alphamap
@item @code{alphamap}: def. 64-by-1 double


to use


@cindex {figure alphamap}


i.e., curly parentheses around what should be treated as a lumped string of
text, outright fails.

It's strange.  I recompiled octave.pdf and the blocky behavior I illustrated
in the original post's PNG figure has gone away for 'figure deletefcn'.  It's
because the index was reduced slightly (with what I was working on) and no
longer is there a whole column of entries that being with "figure".  That is,
no longer is there this arrangement:


figure colormap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
399
figure createfcn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
399
figure currentaxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
399
[snip]
figure windowstyle . . . . . . . . . . . . . . . . . . . . . . . . . . . .
403
[page or block ends here]


By "block" I mean like a letter group A is all one block, B is all one block,
etc.

So, I would guess this is either a TeX behavior or a dvi2pdf behavior.  I
wonder why it is doing this.  Is it because the "figure etc" originates from a
table?  Or is the responsible program to trying to compress the data as much
as possible by locally defining "figure" in PostScript/PDF and replicating
that object thirty times.

I will look for some command line switch for tex2dvi or something similar. 
Otherwise, I think this is something out of Octave's hands.

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