More enhancements to pdfattach

1. Emit the list of attached files first and then emit each individual
attachment one per page.
2. Use hyperlinks in the list of attached files so one can jump directly
to the file which he wants to extract.

utils/pdfattach

@@ -40,6 +40,7 @@ fi
 
 declare outfile=""
 declare -a infiles=()
+declare -a infiles_texclean=()
 declare -a infilesize=()
 declare -i infcount=0 outfcount=0 totalsize=0
 
@@ -71,6 +72,7 @@ do
 		usage
 	fi
 	infiles[$infcount]="$fullname"
+	infiles_texclean[$infcount]=$(escape_tex_specialchars $(basename "${infiles[$infcount]}"))
 	infilesize[$infcount]=$(stat --print="%s" "$fullname")
 	((totalsize=totalsize+${infilesize[$infcount]}))
 	((infcount++))
@@ -90,18 +92,26 @@ fi
 workdir=$(mktemp --tmpdir -d pdfattach.XXXXXX)
 cd $workdir
 > tmp.tex
+# emit TeX preamble
 echo -E "\documentclass{book}" >> tmp.tex
 echo -E "\usepackage[margin={1mm},papersize={9cm,12cm}]{geometry}" >> tmp.tex
-echo -E "\usepackage{attachfile}" >> tmp.tex
+echo -E "\usepackage{hyperref,attachfile}" >> tmp.tex
 echo -E "\begin{document}" >> tmp.tex
-echo -E "\pagestyle{empty}\small" >> tmp.tex
+echo -E "\tolerance=10000\pagestyle{empty}\fontsize{7}{13}\selectfont" >> tmp.tex
+
+# emit the list of all files
 for ((i = 0 ; i < ${#infiles[*]} ; i++));
 do
-	descr=$(escape_tex_specialchars $(basename "${infiles[$i]}"))
+	echo -E "\noindent \hyperlink{L$i}{$((i+1))/${infcount}} \texttt{${infiles_texclean[$i]}} (${infilesize[$i]} bytes)" >> tmp.tex
-	echo -E "\noindent $((i+1)): $descr (\textattachfile[color={0 0 0}]{${infiles[$i]}}{${infilesize[$i]} bytes})" >> tmp.tex
 	echo >> tmp.tex
 done
-echo -E "\noindent Total size $totalsize bytes" >> tmp.tex
+echo -E "\noindent Total size $totalsize bytes\newpage" >> tmp.tex
+
+# now emit all the attachments, one per page
+for ((i = 0 ; i < ${#infiles[*]} ; i++));
+do
+	echo -E "\noindent\hypertarget{L$i}$((i+1))/${infcount}\\\\\texttt{${infiles_texclean[$i]}} (\textattachfile[color={0 0 0}]{${infiles[$i]}}{${infilesize[$i]} bytes})\newpage" >> tmp.tex
+done
 echo -E "\end{document}" >> tmp.tex
 pdflatex -halt-on-error tmp.tex > /dev/null && mv tmp.pdf "$outfile"
 cd - > /dev/null