-@menu
-* Summary Buffer Format:: \e$B35N,%P%C%U%!!<$N304Q$r7hDj$9$k\e(B
-* Summary Maneuvering:: \e$B35N,%P%C%U%!!<$rF0$-2s$k\e(B
-* Choosing Articles:: \e$B5-;v$rFI$`\e(B
-* Paging the Article:: \e$BFI$s$G$$$k5-;v$r%9%/%m!<%k$9$k\e(B
-* Reply Followup and Post:: \e$B5-;v$rEj9F$9$k\e(B
-* Delayed Articles:: \e$B5-;v$r8e$GAw$k\e(B
-* Marking Articles:: \e$B5-;v$K4{FI$d4|8B@Z$l>C5n2DG=Ey$N0u$rIU$1$k\e(B
-* Limiting:: \e$B35N,%P%C%U%!!<$K@)8B$r2C$($k$3$H$,$G$-$k\e(B
-* Threading:: \e$B%9%l%C%I$,$I$N$h$&$K:n$i$l$k$+\e(B
-* Sorting the Summary Buffer:: \e$B%9%l%C%I$H5-;v$,$I$N$h$&$KJB$S$+$($i$l$k$+\e(B
-* Asynchronous Fetching:: Gnus \e$B$O5-;v$r@h$K<hF@$9$k$3$H$,$G$-$k\e(B
-* Article Caching:: \e$B%-%c%C%7%e$K5-;v$rCy$a$F$*$1$k\e(B
-* Persistent Articles:: \e$B5-;v$r4|8B@Z$l>C5n$7$J$/$5$;$k\e(B
-* Sticky Articles:: \e$B:FMxMQ$7$J$$5-;v%P%C%U%!!<\e(B
-* Article Backlog:: \e$B$9$G$KFI$s$@5-;v$r;D$7$F$*$/\e(B
-* Saving Articles:: \e$B5-;v$NJ]B8$r%+%9%?%^%$%:$9$kJ}K!\e(B
-* Decoding Articles:: Gnus \e$B$O0lO"$N\e(B (uu)encode \e$B$5$l$?5-;v$r07$($k\e(B
-* Article Treatment:: \e$B5-;v%P%C%U%!!<$O$*K>$_$I$*$j$KL\Cc6lCc$K$G$-$k\e(B
-* MIME Commands:: \e$B5-;v$N\e(B MIME \e$B$N$"$l$3$l$rA`:n$9$k\e(B
-* Charsets:: \e$BJ8;z%;%C%H$N$3$H\e(B
-* Article Commands:: \e$B5-;v%P%C%U%!!<$G$$$m$$$m$J$3$H$r$9$k\e(B
-* Summary Sorting:: \e$B$$$m$$$m$JJ}K!$G35N,%P%C%U%!!<$rJB$YBX$($k\e(B
-* Finding the Parent:: \e$B;R5-;v$,C5$;$J$$$C$F\e(B? \e$B?F5-;v$r<hF@$7$J$5$$\e(B
-* Alternative Approaches:: \e$B%G%#%U%)%k%H$G$O$J$$35N,$r;H$C$FFI$`\e(B
-* Tree Display:: \e$B$b$C$H;k3PE*$J%9%l%C%I$NI=<(\e(B
-* Mail Group Commands:: \e$B$$$/$D$+$NL?Na$O%a!<%k%0%k!<%W$@$1$G;H$&$3$H$,$G$-$k\e(B
-* Various Summary Stuff:: \e$BB>$N$I$N>O$K$bG<$^$i$J$+$C$?$b$N\e(B
-* Exiting the Summary Buffer:: \e$B%0%k!<%W%P%C%U%!!<$KLa$k!"$^$?$O8=:_$N%0%k!<%W$r:F$SA*Br$9$k\e(B
-* Crosspost Handling:: \e$B%/%m%9%]%9%H$5$l$?5-;v$,$I$N$h$&$K07$o$l$k$+\e(B
-* Duplicate Suppression:: \e$B%/%m%9%]%9%H$N07$$$K<:GT$7$?$H$-$NBeBX<jCJ\e(B
-* Security:: \e$B0E9f$N%G%3!<%I$H8!>Z\e(B
-* Mailing List:: \e$B%a!<%j%s%0%j%9%H%^%$%J!<%b!<%I\e(B
-@end menu
-
-@node Summary Buffer Format
-@section \e$B35N,%P%C%U%!!<$NMM<0\e(B
-@cindex summary buffer format
-
-@iftex
-@iflatex
-\gnusfigure{The Summary Buffer}{180}{
-\put(0,0){\epsfig{figure=ps/summary,width=7.5cm}}
-\put(445,0){\makebox(0,0)[br]{\epsfig{figure=ps/summary-article,width=7.5cm}}}
-}
-@end iflatex
-@end iftex
-@menu
-* Summary Buffer Lines:: \e$B35N,%P%C%U%!!<$,$I$N$h$&$K8+$($k$Y$-$+$r;XDj$G$-$k\e(B
-* To From Newsgroups:: \e$B<+J,<+?H$NL>A0$rI=<($7$J$$J}K!\e(B
-* Summary Buffer Mode Line:: \e$B%b!<%I9T$N8+$(J}$r7h$a$i$l$k\e(B
-* Summary Highlighting:: \e$B35N,%P%C%U%!!<$r$-$l$$$GAGE($K$9$k\e(B
-@end menu
-
-@findex mail-extract-address-components
-@findex gnus-extract-address-components
-@vindex gnus-extract-address-components
-Gnus \e$B$OJQ?t\e(B @code{gnus-extract-address-components} \e$B$NCM$r\e(B @code{From} \e$B%X%C\e(B
-\e$B%@!<$NL>A0$H%"%I%l%9$NItJ,$rCj=P$9$k$?$a$N4X?t$H$7$F;H$$$^$9!#$9$G$KDj5A\e(B
-\e$B$5$l$F$$$k4X?t$,Fs$DB8:_$7$^$9\e(B: \e$B%G%#%U%)%k%H\e(B
-\e$B$O\e(B @code{gnus-extract-address-components} \e$B$G!"$H$F$b4JC1$K3d$j@Z$C$?2r7h\e(B
-\e$BK!$G$9$,Hs>o$KB.$/F0:n$7$^$9!#\e(B@code{mail-extract-address-components} \e$B$O\e(B
-\e$BNI$/F0:n$7$^$9$,CY$$$G$9!#%G%#%U%)%k%H$N4X?t$O\e(B 5% \e$B$N3d9g$G4V0c$C$?Ez$rJV\e(B
-\e$B$7$^$9!#$b$7$3$l$K2fK}$J$i$J$$$N$G$"$l$P!"Be$o$j$KB>$N4X?t$r;H$C$F$/$@$5\e(B
-\e$B$$\e(B:
-
-@lisp
-(setq gnus-extract-address-components
- 'mail-extract-address-components)
-@end lisp
-
-@vindex gnus-summary-same-subject
-@code{gnus-summary-same-subject} \e$B$O:#FI$s$G$$$k5-;v$,!"$=$NA0$N5-;v$HF1\e(B
-\e$B$8I=Bj\e(B (subject) \e$B$G$"$k$3$H$r<($9J8;zNs$G$9!#$3$NJ8;zNs$O!"$=$l$rMW5a$9\e(B
-\e$B$k=qK!;EMM$G;H$o$l$^$9!#%G%#%U%)%k%H$G$O\e(B @code{""} \e$B$G$9!#\e(B
-
-@node Summary Buffer Lines
-@subsection \e$B35N,%P%C%U%!!<$N9T\e(B
-
-@vindex gnus-summary-line-format
-\e$BJQ?t\e(B @code{gnus-summary-line-format} \e$B$NCM$rJQ$($k$3$H$K$h$C$F!"35N,%P%C\e(B
-\e$B%U%!!<$N9T$NMM<0\e(B (format) \e$B$rJQ99$9$k$3$H$,$G$-$^$9!#$$$/$D$+$N3H\e(B
-\e$BD%\e(B (@pxref{Formatting Variables}) \e$B$H$H$b$K!"IaDL$N\e(B @code{format} \e$BJ8;zNs\e(B
-\e$B$HF1$8$h$&$KF0:n$7$^$9!#\e(B
-
-\e$B9T$K$O>o$K%3%m%s$+%]%$%s%H0LCV$N%^!<%+!<$,B8:_$7$F$$$J$1$l$P$J$j$^$;$s!#\e(B
-\e$BA`:n$7$?8e$K!"%+!<%=%k$O$$$D$b%3%m%s$+%]%$%s%H0LCV$N%^!<%+!<$N>l=j$K0\F0\e(B
-\e$B$7$^$9!#\e(B(\e$B$b$A$m$s!"$3$NF0:n$rJQ$($k$3$H$,$G$-$J$$$H$7$?$i\e(B Gnus \e$B$K$O$"$k\e(B
-\e$B$^$8$-$3$H$G$9!#4X?t\e(B @code{gnus-goto-colon} \e$B$r!"$"$J$?$,9%$-$J%+!<%=%k$N\e(B
-\e$BF0$-$K$J$k$h$&$K!"?7$?$K=q$1$PNI$$$N$G$9!#\e(B) @xref{Positioning Point}.
-
-\e$B%G%#%U%)%k%H$NJ8;zNs$O\e(B @samp{%U%R%z%I%(%[%4L: %-23,23f%]%) %s\n} \e$B$G$9!#\e(B
-
-\e$B0J2<$NMM<0;X<(J8;z$H3HD%MM<0;X<($r;H$&$3$H$,$G$-$^$9\e(B:
-
-@table @samp
-@item N
-\e$B5-;v?t!#\e(B
-@item S
-\e$BI=Bj$NJ8;zNs!#\e(B@code{gnus-list-identifiers} \e$B$N@_Dj$K$h$C$F%a!<%j%s%0%j%9\e(B
-\e$B%H$NI8<1$,:o=|$5$l$^$9!#\e(B@xref{Article Hiding}.
-@item s
-\e$B%9%l%C%I\e(B (thread) \e$B$N855-;v$G$"$k$H$-$+D>A0$N5-;v$,0c$&I=Bj$N$H$-$O$=$NI=\e(B
-\e$BBj$G!"$=$l0J30$O\e(B @code{gnus-summary-same-subject}\e$B!#\e(B
-(@code{gnus-summary-same-subject} \e$B$O%G%#%U%)%k%H$G\e(B @code{""}\e$B!#\e(B)
-@item F
-\e$B40A4$J\e(B @code{From} \e$BMs!#\e(B
-@item n
-\e$BL>A0\e(B (@code{From} \e$BMs$h$j\e(B)\e$B!#\e(B
-@item f
-\e$BL>A0!"\e(B@code{To} \e$BMs$NFbMF!"$^$?$O\e(B @code{Newsgroups} \e$BMs$NFbMF$N$I$l$+$G\e(B
-\e$B$9\e(B (@pxref{To From Newsgroups})\e$B!#\e(B
-@item a
-\e$BL>A0\e(B (@code{From} \e$BMs$h$j\e(B)\e$B!#$3$l$H\e(B @code{n} \e$B$H$N0c$$$O!"$3$l$OJQ\e(B
-\e$B?t\e(B @code{gnus-extract-address-components} \e$B$G;XDj$5$l$F$$$k4X?t$r;H$C$FL>\e(B
-\e$BA0$r<hF@$9$k$3$H$G$9!#$3$NJ}$,CY$$$G$9$,!"$*$=$i$/$h$j40A4$K6a$$$G$7$g$&!#\e(B
-@item A
-\e$BL>A0\e(B (@code{From} \e$BMs$h$j\e(B)\e$B!#$3$l$O\e(B @code{a} \e$B$HF1$8$h$&$KF0:n$7$^$9!#\e(B
-@item L
-\e$B5-;v$N9T?t!#\e(B
-@item c
-\e$B5-;v$NJ8;z?t!#$3$NL>A0;XDj;R$O\e(B (nnfolder \e$B$N$h$&$J\e(B) \e$B$$$/$D$+$NA*BrJ}K!$r\e(B
-\e$B%5%]!<%H$7$^$;$s!#\e(B
-@item k
-\e$B@07A$5$l$?5-;v$NJ8;z?t\e(B; \e$BNc$($P\e(B @samp{1.2k} \e$B$d\e(B @samp{0.4M}\e$B!#\e(B
-@item I
-\e$B%9%l%C%I$N%l%Y%k$K$h$k;z2<$2\e(B (@pxref{Customizing Threading})\e$B!#\e(B
-@item B
-\e$BJ#;($J\e(B trn \e$BMM<0$N%9%l%C%ILZ\e(B (tree)\e$B!#$I$N$h$&$J1~Ez$,9T$J$o$l$?$+$N5-O?$r\e(B
-\e$BI=<($7$^$9!#%9%l%C%I$O$3$N$h$&$KIA$+$l$k$G$7$g$&\e(B:
-
-@example
->
-+->
-| +->
-| | \->
-| | \->
-| \->
-+->
-\->
-@end example