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A few changes and improvements #15

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A few changes and improvements #15

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aa9e4ab
Make the lastframenumber a global variable
xaf May 4, 2016
772a43b
Manage font size as a package option
xaf May 4, 2016
e8feb7d
Add a way not to add multiple times the same note when there is multi…
xaf May 4, 2016
d21534e
Allow to use \\ and \par in notes without needing a sed after
xaf May 5, 2016
b0463a3
Add header and copyright information
xaf Oct 21, 2016
c3832cd
Add % symbols at the end of each line to prevent adding unwanted spaces
xaf Oct 21, 2016
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80 changes: 67 additions & 13 deletions pdfpcnotes.sty
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Original file line number Diff line number Diff line change
@@ -1,11 +1,38 @@
\ProvidesPackage{pdfpcnotes}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% pdfpcnotes.sty
%
% Create notes for PDFPC from a beamer file
%
% Copyright 2013 Carsten Brandt <[email protected]>
% Copyright 2013 Aggelos Karalias <[email protected]>
% Copyright 2014-2016 Raphaël Beamonte <[email protected]>
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\ProvidesPackage%
{pdfpcnotes}%
[2016/05/04 \space ver 0.2 \space To generate notes to use with pdfpc]

\RequirePackage{forloop}
\RequirePackage{pdftexcmds}

\RequirePackage{kvoptions}
\DeclareStringOption{fontsize}[32130]
\ProcessKeyvalOptions*\relax

% create a new file handle
\newwrite\pdfpcnotesfile

% open file on \begin{document}
\AtBeginDocument{%
\immediate\openout\pdfpcnotesfile\jobname.pdfpc\relax
\immediate\write\pdfpcnotesfile{[file]}
\immediate\write\pdfpcnotesfile{\jobname.pdf}
\ifx\pdfpcnotes@fontsize\@empty
\else
\immediate\write\pdfpcnotesfile{[font_size]^^J\pdfpcnotes@fontsize}
\fi
\immediate\write\pdfpcnotesfile{[notes]}
}
% define a # http://tex.stackexchange.com/a/37757/10327
Expand All @@ -15,28 +42,55 @@
\endgroup


\def\lastframenumber{0}
\global\def\pdfpcnotes@lastframenumber{0}
\newcounter{pdfpcnotes@currentframenotes}
\newcounter{pdfpcnotes@checkifnoteexists}
\newif\ifpdfpcnotes@noteexists

% define command \pnote{} that works like note but
% additionally writes notes to file in pdfpc readable format
\newcommand{\pnote}[1]{%
% keep normal notes working
\note{#1}%

%
% if frame changed - write a new header
\ifdim\theframenumber pt>\lastframenumber pt
\let\lastframenumber\theframenumber
\begingroup
\let\#\hashchar
\ifdim\theframenumber pt>\pdfpcnotes@lastframenumber pt
\global\edef\pdfpcnotes@lastframenumber{\theframenumber}%
\setcounter{pdfpcnotes@currentframenotes}{0}%
\begingroup%
\let\#\hashchar%
\immediate\write\pdfpcnotesfile{\#\#\# \theframenumber}%
\endgroup
\fi

% write note to file
\immediate\write\pdfpcnotesfile{\unexpanded{#1}}%
\endgroup%
\fi%
%
% check if note was already stored
\pdfpcnotes@noteexistsfalse%
\forloop{pdfpcnotes@checkifnoteexists}{0}{%
\value{pdfpcnotes@checkifnoteexists} < \value{pdfpcnotes@currentframenotes}%
}{%
\ifnum\pdf@strcmp{\unexpanded{#1}}{\csname pdfpcnotes@currentframenotes@\thepdfpcnotes@checkifnoteexists\endcsname}=0
\pdfpcnotes@noteexiststrue%
\setcounter{pdfpcnotes@checkifnoteexists}{\value{pdfpcnotes@currentframenotes}}%
\else%
\fi%
}%
%
% and then, only if the note was not stored
\ifpdfpcnotes@noteexists%
\else%
% add note in stored notes
\expandafter\global\expandafter\def\csname pdfpcnotes@currentframenotes@\thepdfpcnotes@currentframenotes\endcsname{\unexpanded{#1}}%
\stepcounter{pdfpcnotes@currentframenotes}%
%
% write note to file
\begingroup%
\def\\{^^J}%
\def\par{^^J^^J}%
\immediate\write\pdfpcnotesfile{#1}%
\endgroup%
\fi%
}
% close file on \begin{document}
\AtEndDocument{%
\immediate\closeout\pdfpcnotesfile
}