Implements LIST {NEWSGROUPS,SUBSCRIPTIONS}

Adds support for TAGS in noweb files.

I really don't know whether the above is complete or not.

Makefile

@@ -5,5 +5,5 @@ loop: loop.asd loop.lisp scripts/build-exe.lisp
 
 install: loop
 	mkdir -p `head -1 conf-home` && \
-		cp -R loop accounts.lisp groups scripts \
+		cp -R loop accounts.lisp index groups scripts \
 			`head -1 conf-home`

Nowebfile

@@ -3,25 +3,13 @@ include Makefile
 
 default: all
 
-all: loop.exe loop.lisp loop.asd scripts/build-exe.lisp \
+all: loop loop.lisp loop.asd scripts/build-exe.lisp \
 scripts/build-index-from-fs.lisp \
 scripts/cron-remove-inactive-users.lisp \
-scripts/migrate-add-creation-date.lisp \
-scripts/verify-index.lisp \
-scripts/find-duplicates.lisp \
-version.lisp TAGS
+scripts/migrate-add-creation-date.lisp
 
-version.lisp: loop.lisp
-	echo "(in-package :loop)" > version.lisp
-	echo "(defparameter *git-hash* \"$$(git rev-parse --short HEAD)\")" >> version.lisp
-
-TAGS: loop.lisp
-	etags $(PWD)/loop.lisp
-	sed -i 's|$(PWD)/loop.lisp|$(PWD)/loop.nw|g' TAGS
-
-loop.exe: scripts/build-exe.lisp loop.lisp loop.asd loop.nw
+loop: scripts/build-exe.lisp loop.lisp loop.asd loop.nw
 	sbcl --script scripts/build-exe.lisp
-	(test -f loop.exe && cmp loop loop.exe) || cp loop loop.exe
 
 loop.lisp: loop.nw format-def
 	(no tangle -Rloop.lisp < loop.nw | sh format-def > loop.tmp || \
@@ -29,9 +17,20 @@ loop.lisp: loop.nw format-def
 		mv loop.tmp loop.lisp
 
 format-def: loop.nw
-	(no tangle -Rformat-def.sh < loop.nw > format-def.tmp || \
+	(no tangle -Rformat-def < loop.nw > format-def.tmp || \
 		(rm format-def.tmp && exit 1)) && \
-		mv format-def.tmp format-def
+		mv format-def.tmp format-def && \
+			chmod 0755 format-def
+
+make-release: loop.nw
+	(no tangle -Rmake-release < loop.nw > make-release.tmp || \
+		(rm make-release.tmp && exit 1)) && \
+		mv make-release.tmp make-release && \
+			chmod 0755 make-release
+
+release: make-release
+	./make-release $$(git log --oneline -1 | awk '{print $$1}') \
+           loop.nw > loop.tmp && mv loop.tmp loop.nw
 
 loop.asd: loop.nw
 	(no tangle -Rloop.asd < loop.nw > loop-asd.tmp || \
@@ -49,18 +48,6 @@ scripts/build-index-from-fs.lisp: loop.nw
 		(rm build-index-from-fs.tmp && exit 1)) && \
 	    	mv build-index-from-fs.tmp scripts/build-index-from-fs.lisp
 
-scripts/verify-index.lisp: loop.nw
-	(no tangle -Rverify-index.lisp < loop.nw > \
-		verify-index.tmp || \
-		(rm verify-index.tmp && exit 1)) && \
-		mv verify-index.tmp scripts/verify-index.lisp
-
-scripts/find-duplicates.lisp: loop.nw
-	(no tangle -Rfind-duplicates.lisp < loop.nw > \
-		find-duplicates.tmp || \
-		(rm find-duplicates.tmp && exit 1)) && \
-		mv find-duplicates.tmp scripts/find-duplicates.lisp
-
 scripts/cron-remove-inactive-users.lisp: loop.nw
 	(no tangle -Rcron-remove-inactive-users.lisp < loop.nw > \
 		cron-remove-inactive-users.tmp || \
@@ -75,6 +62,12 @@ scripts/migrate-add-creation-date.lisp: loop.nw
 		mv migrate-add-creation-date.tmp \
 			scripts/migrate-add-creation-date.lisp
 
+run: loop.nw
+	(no tangle -Rrun < loop.nw > run.tmp || \
+		(rm run.tmp && exit 1)) && \
+		mv run.tmp run && \
+		chmod 0755 run
+
 loop.tex: loop.nw
 	no weave -delay -index loop.nw > loop.tex
 
@@ -82,6 +75,9 @@ loop.pdf: loop.tex
 	latexmk -pdf loop
 
 clean: 
-	rm -f loop loop.exe loop.asd loop.lisp loop.tex loop.pdf \
-	  *.fasl *.db .*~ *~ *.out *.aux *.log *.fls *.fdb_latexmk \
-	TAGS
+	rm -f loop loop.asd loop.lisp loop.tex loop.pdf \
+	  *.fasl *.db .*~ *~ *.out *.aux *.log *.fls *.fdb_latexmk
+
+tags: loop.nw
+	etags -l tex loop.nw
+	etags -a -l lisp loop.nw

README

@@ -21,7 +21,7 @@ install it as a local project.  Go to
 
 and say 
 
-  $ git clone https://git.atlantida.space/root/loop
+  $ git clone https://git.antartida.xyz/loop/srv loop
   $ cd loop
   $ echo /path/to/loop/home > conf-home
   $ make install
@@ -71,12 +71,12 @@ $ tcpserver -v -HR 0.0.0.0 1024 ./loop -s
 tcpserver: status: 0/40
 --8<-------------------------------------------------------->8---
 
-Using another terminal, telnet to your host on port 1024:
+Now telnet to your host on port 1024:
 
 --8<-------------------------------------------------------->8---
 $ telnet localhost 1024
 Trying 127.0.0.1...
-Connected to 127.0.0.1.
+Connected to antartida.xyz.
 Escape character is '^]'.
 200 Welcome! Say ``help'' for a menu.
 quit
@@ -122,6 +122,23 @@ $ crontab -l
 
 We installed LOOP just fine on
 
-  Void GNU/Linux release ``rolling'' with SBCL 2.6.6.void.1
+  OpenBSD 7.6 with SBCL 2.4.8.openbsd.sbcl-2.4.8.
   FreeBSD 14.1, 14.2 with SBCL 2.4.9.
   Debian GNU/Linux 8.11 codename jessie with SBCL 1.2.4.debian.
+
+(*) Systems with installation issues
+
+We installed LOOP on Ubuntu 24.04 (24.01.1 LTS) codename noble with
+SBCL 2.2.9.debian.  We found that CLSQL could not load the shared
+object libsqlite3.so because ``apt install libsqlite3'' installs the
+library at 
+
+  /usr/lib/x86_64-linux-gnu/libsqlite3.so.0.8.6
+
+with a symbolic link to libsqlite3.so.0, but not to libsqlite3.so.
+SBCL is trying to load libsqlite3.so, so a solution is to just tell
+your system to
+
+  ln -s libsqlite3.so.0 libsqlite3.so
+
+at /usr/lib/x86_64-linux-gnu.

TAGS

@@ -0,0 +1,290 @@
+
+loop.nw,3549
+\def\nwendcode{\nwendcode
35,939
+\newcommand{\lxxp}\lxxp
39,1017
+\newcommand{\Lp}\Lp
40,1048
+\newcommand{\lp}\lp
41,1077
+\newcommand{\bug}\bug
42,1099
+\newcommand{\symlink}\symlink
43,1128
+\newcommand{\symlinks}\symlinks
44,1171
+  \label{fg:gnus}fg:gnus
81,2706
+  \label{fg:bird}fg:bird
87,2911
+  \label{fg:sylpheed}fg:sylpheed
93,3111
+\ref{fg:gnus}fg:gnus
137,5733
+\section*{*
140,5822
+Section \ref{sec:inactive-users}sec:inactive-users
148,6361
+\section*{*
184,8177
+\section{Implementation strategy}\label{sec:design}Implementation
190,8309
+illustrated in Figures~\ref{fg:gnus}fg:gnus
319,12490
+Section~\ref{sec:repl}sec:repl
323,12759
+\section{NNTP protocol}NNTP
328,12992
+\section{It's a network server}It's
342,13734
+through the command line as illustrated in Section~\ref{sec:design}sec:design
369,15206
+\section{REPL for \lp}\label{sec:repl}REPL
371,15276
+\section{Representation of a client}Representation
437,17374
+\section{Representation of a command}Representation
449,17770
+\section{Representation of requests and responses}Representation
517,20737
+\section{Main loop}Main
594,23947
+\section{Parsing of requests}Parsing
669,25880
+\section{Parsing of command-line arguments}Parsing
688,26641
+\section{Request dispatching mechanism}Request
961,36913
+\section{Representation and parsing of articles}Representation
982,37706
+\section{How to extract articles from the database}How
1065,40809
+\section{Commands}Commands
1115,42605
+\subsection{{\tt HELP}}1117,42625
+\subsection{{\tt AUTHINFO}}\label{sec:authinfo}1151,43910
+Section~\ref{sec:login}sec:login
1157,44202
+\subsection{{\tt CREATE-ACCOUNT}}1202,45894
+\subsection{{\tt UNLOCK-ACCOUNT}}1320,50452
+\ref{sec:inactive-users}sec:inactive-users
1323,50541
+\subsection{{\tt LOGIN}}\label{sec:login}1356,51852
+Besides {\tt AUTHINFO} in Section~\ref{sec:authinfo}sec:authinfo
1358,51895
+\subsection{{\tt PASSWD}}\label{sec:passwd}1384,52856
+\subsection{{\tt USERS}}\label{sec:users}1430,54730
+\subsection{{\tt LIST}}\label{sec:list}1480,56381
+\subsection{{\tt GROUP}}\label{sec:group}1632,62446
+\subsection{{\tt BODY}, {\tt HEAD}, {\tt ARTICLE} e {\tt NEXT}}1662,63270
+\label{sec:typical-cmds}sec:typical-cmds
1663,63334
+Section~\ref{sec:index}sec:index
1673,63902
+\subsection{{\tt XOVER}}\label{sec:xover}1775,68503
+\subsection{{\tt MODE READER}}\label{sec:mode-reader}1833,71074
+\subsection{{\tt DATE}}\label{sec:date}1842,71321
+\subsection{{\tt QUIT}}\label{sec:quit}1855,71664
+\subsection{{\tt DD}}\label{sec:dd}1865,71927
+\subsection{{\tt POST}}\label{sec:post}1878,72420
+\subsection{{\tt CREATE-GROUP}}2241,87684
+\subsection{{\tt REPL}}2278,89424
+\section{Publication of news}Publication
2305,90274
+\section{Algorithm of {\tt split-vector}}Algorithm
2346,91833
+\section{Article index}\label{sec:index}Article
2377,93028
+\section{Essential operations relative to the index}Essential
2457,96627
+\section{Procedure to import the index from the file system}Procedure
2502,98639
+\section{Deletion and locking of inactive accounts}\label{sec:inactive-users}Deletion
2568,100703
+\section{Macros to ease writing}\label{sec:dsl}Macros
2734,107284
+\section{Other procedures}Other
2797,109416
+\section{Tests}Tests
2887,112172
+\section{Executable, how to build it}Executable,
2960,115048
+\section{Log of \lp's communication, how to produce it}Log
2981,115628
+\section{Package {\tt loop.lisp} as the compiler needs it}Package
3018,116977
+\section{Other source code}Other
3118,120026
+\section*{*
3209,123229
+\section*{*
3212,123270
+
+loop.nw,7251
+(defun repl 406,16344
+(defstruct client 444,17635
+(defparameter *client* 445,17707
+(defstruct command 460,18266
+(defparameter *commands-assoc* 461,18306
+(defun table-of-commands 465,18369
+(defun set-up-tables! 490,19679
+(defun get-command 503,20175
+(defstruct request 532,21437
+(defstruct response 533,21472
+(defun empty-response 537,21569
+(defun prepend-response-with 538,21648
+(defun append-crlf-if-needed 549,22038
+(defun send-response! 559,22358
+(defun my-write 588,23770
+(defun main-loop 609,24648
+(defun request-quit? 617,24871
+(defun response-quit? 618,24938
+(defun server-start 620,25011
+(defun main 625,25086
+(defun send-banner! 633,25219
+(defun parse-request 676,26130
+(defun root/command 717,28103
+(defun root/options 726,28330
+(defun root/handlers 745,28781
+(defun root/main 812,31505
+(defun account/command 829,32050
+(defun account/options 836,32217
+(defun account/manager 880,33246
+(defun account/list-accounts 929,35415
+(defun account/create-account! 932,35499
+(defun account/change-passwd! 948,36285
+(defun dispatch 972,37440
+(defun dispatch-line 978,37595
+(defstruct article 1001,38661
+(defun parse-article 1005,38761
+(defun hs-space-collapsed 1017,39117
+(defun hs-lines 1020,39233
+(defun parse-header 1022,39291
+(defun parse-head 1033,39765
+(defun string-integer? 1037,39888
+(defun get-header-from-article 1044,40120
+(defun get-header 1047,40222
+(defun fetch-headers 1051,40328
+(defun enrich-headers 1057,40538
+(defun nlines 1062,40720
+(defun fetch-article 1073,41166
+(defun read-file-raw 1077,41253
+(defun fetch-body 1088,41548
+(defun encode-body 1099,42004
+(defun extract-mid 1109,42415
+(defun lookup 1111,42509
+(defun cmd-help 1132,43409
+(defun menu 1140,43672
+(defun display-fn 1144,43750
+(defun cmd-authinfo 1167,44575
+(defun authinfo-check 1189,45558
+(defun auth? 1192,45627
+(defun log-user-in! 1195,45681
+(defun user-name-conforms? 1222,46556
+(defun cmd-create-account 1226,46661
+(defstruct account 1243,47431
+(defparameter *accounts* 1244,47525
+(defun read-accounts! 1248,47602
+(defun string->array 1256,47799
+(defun string->sha256 1261,47960
+(defun new-account! 1265,48108
+(defun write-accounts! 1298,49724
+(defun get-account 1314,50246
+(defun cmd-unlock-account 1327,50650
+(defun unlock-account! 1344,51440
+(defun cmd-login 1364,52175
+(defun log-user-in-as! 1379,52743
+(defun cmd-passwd 1391,53128
+(defun pass? 1410,54030
+(defun change-passwd! 1421,54453
+(defun cmd-list-users 1436,54874
+(defun size-of-longest-username 1444,55101
+(defun list-users 1448,55216
+(defun universal-to-human 1468,56050
+(defun last-time-seen 1474,56169
+(defstruct group 1490,56831
+(defun cmd-list 1492,56864
+(defun build-groups-lines 1499,57124
+(defun build-groups-structs 1506,57288
+(defun between? 1513,57553
+(defun filesize 1517,57628
+(defun zero-file? 1521,57700
+(defun temporary-article? 1524,57751
+(defun article-ready? 1528,57860
+(defun get-articles 1533,57977
+(defun group-high-low 1543,58365
+(defun articles->integers 1550,58592
+(defun list-groups 1557,58829
+(defun last-char 1562,59026
+(defun basename 1570,59239
+(defun loop-directory* 1591,60259
+(defun loop-list-files 1601,60921
+(defun loop-list-directories 1610,61276
+(defun cmd-group 1637,62577
+(defun group? 1648,62987
+(defun xgroup? 1652,63057
+(defun set-group! 1655,63097
+(defun typical-cmd-head-body-article 1676,63998
+(defun cmd-head 1692,64865
+(defun cmd-body 1694,64938
+(defun cmd-article 1696,65011
+(defun article-response 1699,65091
+(defun head-response 1701,65190
+(defun body-response 1703,65303
+(defun typical-cmd-response 1732,66889
+(defun cmd-next 1753,67671
+(defun article-next! 1764,68125
+(defun mid-by-name 1771,68392
+(defun cmd-xover 1784,68864
+(defun xover 1803,69821
+(defun xover-format-line 1824,70743
+(defun xover-headers 1829,70965
+(defun cmd-mode 1838,71220
+(defun cmd-date 1848,71508
+(defun cmd-quit 1861,71841
+(defun cmd-test 1873,72224
+(defun suggest-message-id 1890,72964
+(defun random-string 1893,73056
+(defun unparse-article 1907,73469
+(defun ensure-header 1924,74079
+(defun get-date 1937,74556
+(defun ensure-mid 1944,74798
+(defun ensure-date 1946,74877
+(defun cmd-post 1974,75958
+(defun post 2009,77527
+(defun newsgroups-header->list 2033,78605
+(defun update-last-post-date! 2048,79301
+(defun rename-no-extension 2066,80230
+(defun save-article-try 2069,80333
+(defun save-article-insist 2103,81607
+(defun get-next-article-id 2109,81828
+(defun nntp-read-article 2125,82527
+(defun nntp-read-line 2144,83403
+(defun list->bytes 2153,83766
+(defun vector->bytes 2156,83820
+(defun data->bytes 2159,83889
+(defun add-crlf-between 2167,84158
+(defun string->bytes 2171,84310
+(defun bytes->string 2174,84365
+(defun conforms? 2194,85304
+(defun text/plain? 2207,85952
+(defun headers-required-from-clients 2216,86295
+(defun cmd-create-group 2251,88133
+(defun group-name-conforms? 2274,89300
+(defun cmd-repl 2284,89577
+(defparameter *enable-nntp-repl* 2302,90234
+(defun notify-group-created 2312,90507
+(defun notify-user-created 2317,90718
+(defun notify-user-unlocked 2322,90916
+(defun post-notification 2328,91133
+(defun make-news 2334,91423
+(defun split-vector 2357,92329
+(defun split-vector-helper 2361,92471
+(defun create-index! 2411,94531
+(defun rm-rf 2414,94595
+(defun drop-create-index! 2417,94676
+(defun insert-index 2477,97606
+(defun lookup-index 2494,98361
+(defun index-from-fs! 2524,99476
+(defun remake-index-from-fs 2533,99889
+(defun remove-inactive-users! 2592,101636
+(defun remove-account! 2628,103539
+(defun lock-account! 2636,103831
+(defun loop-epoch 2652,104565
+(defun migrate-add-creation-and-post-date! 2655,104626
+(defparameter *months-inactive-allowed* 2677,105392
+(defparameter *months-never-logged-in* 2678,105435
+(defun user-inactive? 2682,105521
+(defun inactive-from-never-logged-in? 2686,105647
+(defun locked? 2693,105901
+(defun inactive-from-last-post? 2696,105988
+(defun inactive-from-last-seen? 2704,106346
+(defun inactive-from? 2713,106695
+(defun ever-logged-in? 2721,106902
+(defun never-logged-in? 2724,106978
+(defun list-inactive-users 2727,107050
+(defmacro in-dir 2742,107560
+(defmacro in-groups 2756,108079
+(defun in-group-lambda 2758,108141
+(defmacro in-group 2760,108197
+(defmacro with-group 2763,108297
+(defmacro with-n-args 2773,108619
+(defmacro with-group-set 2783,108996
+(defmacro with-auth 2790,109201
+(defun conforms-to? 2808,109948
+(defun print/finish 2815,110199
+(defun word-plural 2819,110285
+(defun plural 2826,110536
+(defun out 2833,110720
+(defun stderr 2836,110791
+(defun stdout 2841,110917
+(defun println 2844,110993
+(defun enumerate 2847,111105
+(defun ucs-2->ascii 2851,111222
+(defun bad-input 2855,111319
+(defun integer->string 2858,111416
+(defun mkstr 2861,111467
+(defun data 2865,111572
+(defun crlf 2868,111655
+(defun crlf-string 2871,111689
+(defun flatten 2874,111755
+(defmacro mac 2883,112041
+(define-test dispatching2918,113875
+(defun unix->nntp 2921,113970
+(defvar a-post 2925,114082
+(defvar a-bad-post 2933,114231
+(define-test post-wrong-newsgroup2941,114426
+(define-test post-okay2946,114593
+(defpackage #:loop3040,118020
+(defparameter *debug* 3090,119274
+(asdf:defsystem :<<Name>>3111,119857

groups/local.control.news/1

@@ -1,5 +1,5 @@
 Date: 2024-03-07 21:44:31 GMT-3
-Message-Id: <xdjocyeqzqqhnswlbrbo@loop>
+Message-Id: <edjocyeqzqqhnswlbrbo@loop>
 From: Loop
 Subject: let there be light
 Newsgroups: local.control.news

loop.asd

@@ -1,8 +1,7 @@
 ;;; -*- Mode: LISP; Syntax: COMMON-LISP; -*-
 (asdf:defsystem :LOOP
-  :version "0.0.1"
+  :version "ec13a0c"
   :description "An NNTP server for a circle of friends."
   :depends-on (:lisp-unit :str :uiop :cl-ppcre :local-time :clsql-sqlite3 :clingon
                :filesystem-utils :ironclad/digest/sha256)
-  :components ((:file "loop")
-               (:file "version")))
+  :components ((:file "loop")))

make-release

@@ -8,8 +8,8 @@ usage()
 test $# -lt 2 && usage
 
 tag="$1"; shift
-sed "/0.0.1=/ {
- n;
+sed "/<<Version>>=/ {
+ n
  c\\
 $tag
 }" "$@"

noweb.sty

@@ -0,0 +1,989 @@
+% noweb.sty -- LaTeX support for noweb
+% DON'T read or edit this file!  Use ...noweb-source/tex/support.nw instead.
+{\obeyspaces\AtBeginDocument{\global\let =\ }} % from texbook, p 381
+\def\nwopt@nomargintag{\let\nwmargintag=\@gobble}
+\def\nwopt@margintag{%
+  \def\nwmargintag##1{\leavevmode\llap{##1\kern\nwmarginglue\kern\codemargin}}}
+\def\nwopt@margintag{%
+  \def\nwmargintag##1{\leavevmode\kern-\codemargin\nwthemargintag{##1}\kern\codemargin}}
+\def\nwthemargintag#1{\llap{#1\kern\nwmarginglue}}
+\nwopt@margintag
+\newdimen\nwmarginglue
+\nwmarginglue=0.3in
+\def\nwtagstyle{\footnotesize\Rm}
+% make \hsize in code sufficient for 88 columns
+\setbox0=\hbox{\tt m}
+\newdimen\codehsize
+\codehsize=91\wd0 % 88 columns wasn't enough; I don't know why
+\newdimen\codemargin
+\codemargin=0pt
+\newdimen\nwdefspace
+\nwdefspace=\codehsize
+% need to use \textwidth in {\LaTeX} to handle styles with
+% non-standard margins (David Bruce).  Don't know why we sometimes
+% wanted \hsize.  27 August 1997.
+%% \advance\nwdefspace by -\hsize\relax
+\ifx\textwidth\undefined
+  \advance\nwdefspace by -\hsize\relax
+\else
+  \advance\nwdefspace by -\textwidth\relax
+\fi
+\chardef\other=12
+\def\setupcode{%
+  \chardef\\=`\\
+  \chardef\{=`\{
+  \chardef\}=`\}
+  \catcode`\$=\other
+  \catcode`\&=\other
+  \catcode`\#=\other
+  \catcode`\%=\other
+  \catcode`\~=\other
+  \catcode`\_=\other
+  \catcode`\^=\other
+  \catcode`\"=\other    % fixes problem with german.sty
+  \obeyspaces\Tt
+}
+%\let\nwlbrace=\{
+%\let\nwrbrace=\}
+\def\nwendquote{\relax\ifhmode\spacefactor=1000 \fi}
+{\catcode`\^^M=\active % make CR an active character
+  \gdef\newlines{\catcode`\^^M=\active % make CR an active character
+         \def^^M{\par\startline}}%
+  \gdef\eatline#1^^M{\relax}%
+}
+%%% DON'T   \gdef^^M{\par\startline}}% in case ^^M appears in a \write
+\def\startline{\noindent\hskip\parindent\ignorespaces}
+\def\nwnewline{\ifvmode\else\hfil\break\leavevmode\hbox{}\fi}
+\def\setupmodname{%
+  \catcode`\$=3
+  \catcode`\&=4
+  \catcode`\#=6
+  \catcode`\%=14
+  \catcode`\~=13
+  \catcode`\_=8
+  \catcode`\^=7
+  \catcode`\ =10
+  \catcode`\^^M=5
+  \let\nwlbrace\lbrace
+  \let\nwrbrace\rbrace
+  \let\{\nwlbrace
+  \let\}\nwrbrace
+  % bad news --- don't know what catcode to give "
+  \Rm}
+\def\LA{\begingroup\maybehbox\bgroup\setupmodname\It$\langle$}
+\def\RA{\/$\rangle$\egroup\endgroup}
+\def\code{\leavevmode\begingroup\setupcode\newlines}
+\def\edoc{\endgroup}
+\let\maybehbox\relax
+\newbox\equivbox
+\setbox\equivbox=\hbox{$\equiv$}
+\newbox\plusequivbox
+\setbox\plusequivbox=\hbox{$\mathord{+}\mathord{\equiv}$}
+% \moddef can't have an argument because there might be \code...\edoc
+\def\moddef{\leavevmode\kern-\codemargin\LA}
+\def\endmoddef{\RA\ifmmode\equiv\else\unhcopy\equivbox\fi
+               \nobreak\hfill\nobreak}
+\def\plusendmoddef{\RA\ifmmode\mathord{+}\mathord{\equiv}\else\unhcopy\plusequivbox\fi
+               \nobreak\hfill\nobreak}
+\def\chunklist{%
+\errhelp{I changed \chunklist to \nowebchunks.  
+I'll try to avoid such incompatible changes in the future.}%
+\errmessage{Use \string\nowebchunks\space instead of \string\chunklist}}
+\def\nowebchunks{\message{<Warning: You need noweave -x to use \string\nowebchunks>}}
+\def\nowebindex{\message{<Warning: You need noweave -index to use \string\nowebindex>}}
+% here is support for the new-style (capitalized) font-changing commands
+% thanks to Dave Love
+\ifx\documentstyle\undefined
+  \let\Rm=\rm \let\It=\it \let\Tt=\tt       % plain
+\else\ifx\selectfont\undefined
+  \let\Rm=\rm \let\It=\it \let\Tt=\tt       % LaTeX OFSS
+\else                                       % LaTeX NFSS
+  \def\Rm{\reset@font\rm}
+  \def\It{\reset@font\it}
+  \def\Tt{\reset@font\tt}
+  \def\Bf{\reset@font\bf}
+\fi\fi
+\ifx\reset@font\undefined \let\reset@font=\relax \fi
+\def\noweboptions#1{%
+  \def\@nwoptionlist{#1}%
+  \@for\@nwoption:=\@nwoptionlist\do{%
+    \@ifundefined{nwopt@\@nwoption}{%
+        \@latexerr{There is no such noweb option as '\@nwoption'}\@eha}{%
+        \csname nwopt@\@nwoption\endcsname}}}
+\codemargin=10pt
+\advance\codehsize by \codemargin       % make room for indentation of code
+\advance\nwdefspace by \codemargin      % and fix adjustment for def/use
+\def\setcodemargin#1{%
+  \advance\codehsize by -\codemargin       % make room for indentation of code
+  \advance\nwdefspace by -\codemargin   % and fix adjustment for def/use
+  \codemargin=#1
+  \advance\codehsize by \codemargin       % make room for indentation of code
+  \advance\nwdefspace by \codemargin    % and fix adjustment for
+                                        % def/use
+}
+\def\nwopt@shift{%
+  \dimen@=-0.8in
+  \if@twoside                 % Values for two-sided printing:
+     \advance\evensidemargin by \dimen@
+  \else                       % Values for one-sided printing:
+     \advance\evensidemargin by \dimen@
+     \advance\oddsidemargin by \dimen@
+  \fi
+%  \advance \marginparwidth -\dimen@
+}
+\let\nwopt@noshift\@empty
+\def\nwbegincode#1{%
+  \begingroup
+    \topsep \nwcodetopsep
+    \@beginparpenalty \@highpenalty
+    \@endparpenalty -\@highpenalty
+  \@begincode }
+\def\nwendcode{\endtrivlist \endgroup \filbreak} % keeps code on 1 page
+
+\newenvironment{webcode}{%
+  \@begincode
+}{%
+  \endtrivlist}
+\def\@begincode{%
+    \trivlist \item[]%
+    \leftskip\@totalleftmargin \advance\leftskip\codemargin
+    \rightskip\hsize \advance\rightskip -\codehsize
+    \parskip\z@ \parindent\z@ \parfillskip\@flushglue
+  \linewidth\codehsize
+    \@@par
+    \def\par{\leavevmode\null \@@par \penalty\nwcodepenalty}%
+    \obeylines
+    \@noligs   \ifx\verbatim@nolig@list\undefined\else
+                 \let\do=\nw@makeother \verbatim@nolig@list \do@noligs\`
+               \fi
+    \setupcode \frenchspacing \@vobeyspaces
+  \nowebsize \setupcode
+  \let\maybehbox\mbox }
+  \newskip\nwcodetopsep \nwcodetopsep = 3pt plus 1.2pt minus 1pt
+  \let\nowebsize=\normalsize
+  \def\nwopt@tinycode{\let\nowebsize=\tiny}
+  \def\nwopt@footnotesizecode{\let\nowebsize=\footnotesize}
+  \def\nwopt@scriptsizecode{\let\nowebsize=\scriptsize}
+  \def\nwopt@smallcode{\let\nowebsize=\small}
+  \def\nwopt@normalsizecode{\let\nowebsize=\normalsize}
+  \def\nwopt@largecode{\let\nowebsize=\large}
+  \def\nwopt@Largecode{\let\nowebsize=\Large}
+  \def\nwopt@LARGEcode{\let\nowebsize=\LARGE}
+  \def\nwopt@hugecode{\let\nowebsize=\huge}
+  \def\nwopt@Hugecode{\let\nowebsize=\Huge}
+\newcount\nwcodepenalty  \nwcodepenalty=\@highpenalty
+\def\nw@makeother#1{\catcode`#1=12 }
+\def\nwbegindocs#1{\ifvmode\noindent\fi}
+\let\nwenddocs=\relax
+\let\nwdocspar=\filbreak
+\def\@nwsemifilbreak#1{\vskip0pt plus#1\penalty-200\vskip0pt plus -#1}
+\newdimen\nwbreakcodespace
+\nwbreakcodespace=0.2in  % by default, leave no more than this on a page
+\def\nwopt@breakcode{%
+  \def\nwdocspar{\@nwsemifilbreak{0.2in}}%
+  \def\nwendcode{\endtrivlist\endgroup} % ditches filbreak
+}
+\raggedbottom
+\def\code{\leavevmode\begingroup\setupcode\@vobeyspaces\obeylines}
+\let\edoc=\endgroup
+\newdimen\@original@textwidth
+\def\ps@noweb{%
+  \@original@textwidth=\textwidth
+  \let\@mkboth\@gobbletwo
+  \def\@oddfoot{}\def\@evenfoot{}%       No feet.
+  \if@twoside         % If two-sided printing.
+    \def\@evenhead{\hbox to \@original@textwidth{%
+           \Rm \thepage\qquad{\Tt\leftmark}\hfil\today}}%        Left heading.
+    \def\@oddhead{\hbox to \@original@textwidth{%
+           \Rm \today\hfil{\Tt\leftmark}\qquad\thepage}}% Right heading.
+  \else               % If one-sided printing.
+    \def\@oddhead{\hbox to \@original@textwidth{%
+           \Rm \today\hfil{\Tt\leftmark}\qquad\thepage}}% Right heading.
+    \let\@evenhead\@oddhead
+  \fi
+  \let\chaptermark\@gobble
+  \let\sectionmark\@gobble
+  \let\subsectionmark\@gobble
+  \let\subsubsectionmark\@gobble
+  \let\paragraphmark\@gobble
+  \let\subparagraphmark\@gobble
+  \def\nwfilename{\begingroup\let\do\@makeother\dospecials
+                \catcode`\{=1 \catcode`\}=2 \nw@filename}
+  \def\nw@filename##1{\endgroup\markboth{##1}{##1}\let\nw@filename=\nw@laterfilename}%
+}
+\def\nw@laterfilename#1{\endgroup\clearpage \markboth{#1}{#1}}
+\let\nwfilename=\@gobble
+\def\nwcodecomment#1{\@@par\penalty\nwcodepenalty
+    \if@firstnwcodecomment
+      \vskip\nwcodecommentsep\penalty\nwcodepenalty\@firstnwcodecommentfalse
+    \fi%
+    \hspace{-\codemargin}{%
+        \rightskip=0pt plus1in
+        \interlinepenalty\nwcodepenalty
+        \let\\\relax\footnotesize\Rm #1\@@par\penalty\nwcodepenalty}}
+\def\@nwalsodefined#1{\nwcodecomment{\@nwlangdepdef\ \nwpageprep\ \@pagesl{#1}.}}
+\def\@nwused#1{\nwcodecomment{\@nwlangdepcud\ \nwpageprep\ \@pagesl{#1}.}}
+\def\@nwnotused#1{\nwcodecomment{\@nwlangdeprtc.}}
+\def\nwoutput#1{\nwcodecomment{\@nwlangdepcwf\ {\Tt \@stripstar#1*\stripped}.}}
+\def\@stripstar#1*#2\stripped{#1}
+\newcommand{\nwprevdefptr}[1]{%
+  \mbox{$\mathord{\triangleleft}\,\mathord{\mbox{\subpageref{#1}}}$}}
+\newcommand{\nwnextdefptr}[1]{%
+  \mbox{$\mathord{\mbox{\subpageref{#1}}}\,\mathord{\triangleright}$}}
+
+\newcommand{\@nwprevnextdefs}[2]{%
+  {\nwtagstyle
+  \ifx\relax#1\else ~~\nwprevdefptr{#1}\fi
+  \ifx\relax#2\else ~~\nwnextdefptr{#2}\fi}}
+\newcommand{\@nwusesondefline}[1]{{\nwtagstyle~~(\@pagenumsl{#1})}}
+\newcommand{\@nwstartdeflinemarkup}{\nobreak\hskip 1.5em plus 1fill\nobreak}
+\newcommand{\@nwenddeflinemarkup}{\nobreak\hskip \nwdefspace minus\nwdefspace\nobreak}
+\def\nwopt@longxref{%
+  \let\nwalsodefined\@nwalsodefined
+  \let\nwused\@nwused
+  \let\nwnotused\@nwnotused
+  \let\nwprevnextdefs\@gobbletwo
+  \let\nwusesondefline\@gobble
+  \let\nwstartdeflinemarkup\relax
+  \let\nwenddeflinemarkup\relax
+}
+\def\nwopt@shortxref{%
+  \let\nwalsodefined\@gobble
+  \let\nwused\@gobble
+  \let\nwnotused\@gobble
+  \let\nwprevnextdefs\@nwprevnextdefs
+  \let\nwusesondefline\@nwusesondefline
+  \let\nwstartdeflinemarkup\@nwstartdeflinemarkup
+  \let\nwenddeflinemarkup\@nwenddeflinemarkup
+}
+\def\nwopt@noxref{%
+  \let\nwalsodefined\@gobble
+  \let\nwused\@gobble
+  \let\nwnotused\@gobble
+  \let\nwprevnextdefs\@gobbletwo
+  \let\nwusesondefline\@gobble
+  \let\nwstartdeflinemarkup\relax
+  \let\nwenddeflinemarkup\relax
+}
+\nwopt@shortxref % to hell with backward compatibility!
+\newskip\nwcodecommentsep \nwcodecommentsep=3pt plus 1pt minus 1pt
+\newif\if@firstnwcodecomment\@firstnwcodecommenttrue
+\newcount\@nwlopage\newcount\@nwhipage  % range lo..hi-1
+\newcount\@nwlosub              % subpage of lo
+\newcount\@nwhisub              % subpage of hi
+\def\@nwfirstpage#1#2#3{% subpage page xref-tag
+  \@nwlopage=#2 \@nwlosub=#1
+  \def\@nwloxreftag{#3}%
+  \advance\@nwpagecount by \@ne
+  \@nwhipage=\@nwlopage\advance\@nwhipage by \@ne }
+\def\@nwnextpage#1#2#3{% subpage page xref-tag
+  \ifnum\@nwhipage=#2 
+    \advance\@nwhipage by \@ne 
+    \advance\@nwpagecount by \@ne
+    \@nwhisub=#1 
+    \def\@nwhixreftag{#3}\else
+  \ifnum#2<\@nwlopage \advance\@nwhipage by \m@ne
+                      \ifnum\@nwhipage=\@nwlopage
+                           \edef\@tempa{\noexpand\noexpand\noexpand\\%
+                                             {{\nwthepagenum{\number\@nwlosub}{\number\@nwlopage}}%
+                                              {\@nwloxreftag}}}%
+                      \else
+                        \count@=\@nwhipage \advance\count@ by \m@ne
+                        \ifnum\count@=\@nwlopage % consecutive pages
+                            \edef\@tempa{\noexpand\noexpand\noexpand\\%
+                                             {{\nwthepagenum{\number\@nwlosub}{\number\@nwlopage}}%
+                                              {\@nwloxreftag}}%
+                                          \noexpand\noexpand\noexpand\\%
+                                             {{\nwthepagenum{\number\@nwhisub}{\number\@nwhipage}}
+                                              {\@nwhixreftag}}}%
+                        \else \ifnum\@nwlopage<110 \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}\else
+                                \count@=\@nwlopage \divide\count@ by 100 \multiply\count@ by 100
+                                \ifnum\count@=\@nwlopage \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}\else
+                                  \count@=\@nwlopage \divide\count@ by 100
+                                  \@nwpagetemp=\@nwhipage \divide\@nwpagetemp by 100
+                                  \ifnum\count@=\@nwpagetemp %  lo--least 2 digits of hi
+                                    \multiply\@nwpagetemp by 100
+                                    \advance \@nwhipage by -\@nwpagetemp
+                                    \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}%
+                                  \else \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}%
+                                  \fi
+                                \fi
+                              \fi%
+                        \fi
+                      \fi%
+                      \edef\@tempa{\noexpand\nwix@cons\noexpand\nw@pages{\@tempa}}\@tempa\@nwfirstpage{#1}{#2}{#3}\else
+  \ifnum#2>\@nwhipage \advance\@nwhipage by \m@ne
+                      \ifnum\@nwhipage=\@nwlopage
+                           \edef\@tempa{\noexpand\noexpand\noexpand\\%
+                                             {{\nwthepagenum{\number\@nwlosub}{\number\@nwlopage}}%
+                                              {\@nwloxreftag}}}%
+                      \else
+                        \count@=\@nwhipage \advance\count@ by \m@ne
+                        \ifnum\count@=\@nwlopage % consecutive pages
+                            \edef\@tempa{\noexpand\noexpand\noexpand\\%
+                                             {{\nwthepagenum{\number\@nwlosub}{\number\@nwlopage}}%
+                                              {\@nwloxreftag}}%
+                                          \noexpand\noexpand\noexpand\\%
+                                             {{\nwthepagenum{\number\@nwhisub}{\number\@nwhipage}}
+                                              {\@nwhixreftag}}}%
+                        \else \ifnum\@nwlopage<110 \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}\else
+                                \count@=\@nwlopage \divide\count@ by 100 \multiply\count@ by 100
+                                \ifnum\count@=\@nwlopage \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}\else
+                                  \count@=\@nwlopage \divide\count@ by 100
+                                  \@nwpagetemp=\@nwhipage \divide\@nwpagetemp by 100
+                                  \ifnum\count@=\@nwpagetemp %  lo--least 2 digits of hi
+                                    \multiply\@nwpagetemp by 100
+                                    \advance \@nwhipage by -\@nwpagetemp
+                                    \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}%
+                                  \else \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}%
+                                  \fi
+                                \fi
+                              \fi%
+                        \fi
+                      \fi%
+                      \edef\@tempa{\noexpand\nwix@cons\noexpand\nw@pages{\@tempa}}\@tempa\@nwfirstpage{#1}{#2}{#3}\else
+    \@nwlosub=0 \@nwhisub=0
+  \fi\fi\fi
+  }
+\newcount\@nwpagetemp
+\newcount\@nwpagecount
+\def\@nwfirstpagel#1{% label
+  \@ifundefined{r@#1}{\@warning{Reference `#1' on page \thepage \space undefined}%
+                      \nwix@cons\nw@pages{\\{\bf ??}}}{%
+    \edef\@tempa{\noexpand\@nwfirstpage\subpagepair{#1}{#1}}\@tempa}}
+\def\@nwnextpagel#1{% label
+  \@ifundefined{r@#1}{\@warning{Reference `#1' on page \thepage \space undefined}%
+                      \nwix@cons\nw@pages{\\{\bf ??}}}{%
+    \edef\@tempa{\noexpand\@nwnextpage\subpagepair{#1}{#1}}\@tempa}}
+\def\@pagesl#1{%  list of labels
+  \gdef\nw@pages{}\@nwpagecount=0
+  \def\\##1{\@nwfirstpagel{##1}\let\\=\@nwnextpagel}#1%
+  \advance\@nwhipage by \m@ne
+  \ifnum\@nwhipage=\@nwlopage
+       \edef\@tempa{\noexpand\noexpand\noexpand\\%
+                         {{\nwthepagenum{\number\@nwlosub}{\number\@nwlopage}}%
+                          {\@nwloxreftag}}}%
+  \else
+    \count@=\@nwhipage \advance\count@ by \m@ne
+    \ifnum\count@=\@nwlopage % consecutive pages
+        \edef\@tempa{\noexpand\noexpand\noexpand\\%
+                         {{\nwthepagenum{\number\@nwlosub}{\number\@nwlopage}}%
+                          {\@nwloxreftag}}%
+                      \noexpand\noexpand\noexpand\\%
+                         {{\nwthepagenum{\number\@nwhisub}{\number\@nwhipage}}
+                          {\@nwhixreftag}}}%
+    \else \ifnum\@nwlopage<110 \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}\else
+            \count@=\@nwlopage \divide\count@ by 100 \multiply\count@ by 100
+            \ifnum\count@=\@nwlopage \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}\else
+              \count@=\@nwlopage \divide\count@ by 100
+              \@nwpagetemp=\@nwhipage \divide\@nwpagetemp by 100
+              \ifnum\count@=\@nwpagetemp %  lo--least 2 digits of hi
+                \multiply\@nwpagetemp by 100
+                \advance \@nwhipage by -\@nwpagetemp
+                \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}%
+              \else \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}%
+              \fi
+            \fi
+          \fi%
+    \fi
+  \fi%
+  \edef\@tempa{\noexpand\nwix@cons\noexpand\nw@pages{\@tempa}}\@tempa\def\\##1{\@nwhyperpagenum##1}%
+  \ifnum\@nwpagecount=1 \nwpageword \else \nwpagesword\fi~\commafy{\nw@pages}}
+\def\@nwhyperpagenum#1#2{\nwhyperreference{#2}{#1}}
+
+\def\@pagenumsl#1{%  list of labels -- doesn't include word `pages', commas, or `and'
+  \gdef\nw@pages{}\@nwpagecount=0
+  \def\\##1{\@nwfirstpagel{##1}\let\\=\@nwnextpagel}#1%
+  \advance\@nwhipage by \m@ne
+  \ifnum\@nwhipage=\@nwlopage
+       \edef\@tempa{\noexpand\noexpand\noexpand\\%
+                         {{\nwthepagenum{\number\@nwlosub}{\number\@nwlopage}}%
+                          {\@nwloxreftag}}}%
+  \else
+    \count@=\@nwhipage \advance\count@ by \m@ne
+    \ifnum\count@=\@nwlopage % consecutive pages
+        \edef\@tempa{\noexpand\noexpand\noexpand\\%
+                         {{\nwthepagenum{\number\@nwlosub}{\number\@nwlopage}}%
+                          {\@nwloxreftag}}%
+                      \noexpand\noexpand\noexpand\\%
+                         {{\nwthepagenum{\number\@nwhisub}{\number\@nwhipage}}
+                          {\@nwhixreftag}}}%
+    \else \ifnum\@nwlopage<110 \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}\else
+            \count@=\@nwlopage \divide\count@ by 100 \multiply\count@ by 100
+            \ifnum\count@=\@nwlopage \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}\else
+              \count@=\@nwlopage \divide\count@ by 100
+              \@nwpagetemp=\@nwhipage \divide\@nwpagetemp by 100
+              \ifnum\count@=\@nwpagetemp %  lo--least 2 digits of hi
+                \multiply\@nwpagetemp by 100
+                \advance \@nwhipage by -\@nwpagetemp
+                \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}%
+              \else \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}%
+              \fi
+            \fi
+          \fi%
+    \fi
+  \fi%
+  \edef\@tempa{\noexpand\nwix@cons\noexpand\nw@pages{\@tempa}}\@tempa%
+  \def\\##1{\@nwhyperpagenum##1\let\\=\@nwpagenumslrest}\nw@pages}
+\def\@nwpagenumslrest#1{~\@nwhyperpagenum#1}
+\def\subpages#1{% list of {{subpage}{page}}
+  \gdef\nw@pages{}\@nwpagecount=0
+  \def\\##1{\edef\@tempa{\noexpand\@nwfirstpage##1{}}\@tempa
+            \def\\####1{\edef\@tempa{\noexpand\@nwnextpage####1}\@tempa}}#1%
+  \advance\@nwhipage by \m@ne
+  \ifnum\@nwhipage=\@nwlopage
+       \edef\@tempa{\noexpand\noexpand\noexpand\\%
+                         {{\nwthepagenum{\number\@nwlosub}{\number\@nwlopage}}%
+                          {\@nwloxreftag}}}%
+  \else
+    \count@=\@nwhipage \advance\count@ by \m@ne
+    \ifnum\count@=\@nwlopage % consecutive pages
+        \edef\@tempa{\noexpand\noexpand\noexpand\\%
+                         {{\nwthepagenum{\number\@nwlosub}{\number\@nwlopage}}%
+                          {\@nwloxreftag}}%
+                      \noexpand\noexpand\noexpand\\%
+                         {{\nwthepagenum{\number\@nwhisub}{\number\@nwhipage}}
+                          {\@nwhixreftag}}}%
+    \else \ifnum\@nwlopage<110 \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}\else
+            \count@=\@nwlopage \divide\count@ by 100 \multiply\count@ by 100
+            \ifnum\count@=\@nwlopage \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}\else
+              \count@=\@nwlopage \divide\count@ by 100
+              \@nwpagetemp=\@nwhipage \divide\@nwpagetemp by 100
+              \ifnum\count@=\@nwpagetemp %  lo--least 2 digits of hi
+                \multiply\@nwpagetemp by 100
+                \advance \@nwhipage by -\@nwpagetemp
+                \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}%
+              \else \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}%
+              \fi
+            \fi
+          \fi%
+    \fi
+  \fi%
+  \edef\@tempa{\noexpand\nwix@cons\noexpand\nw@pages{\@tempa}}\@tempa\def\\##1{\@firstoftwo##1}%
+  \ifnum\@nwpagecount=1 \nwpageword \else \nwpagesword\fi~\commafy{\nw@pages}}
+\def\@nwaddrange{\advance\@nwhipage by \m@ne
+                 \ifnum\@nwhipage=\@nwlopage
+                      \edef\@tempa{\noexpand\noexpand\noexpand\\%
+                                        {{\nwthepagenum{\number\@nwlosub}{\number\@nwlopage}}%
+                                         {\@nwloxreftag}}}%
+                 \else
+                   \count@=\@nwhipage \advance\count@ by \m@ne
+                   \ifnum\count@=\@nwlopage % consecutive pages
+                       \edef\@tempa{\noexpand\noexpand\noexpand\\%
+                                        {{\nwthepagenum{\number\@nwlosub}{\number\@nwlopage}}%
+                                         {\@nwloxreftag}}%
+                                     \noexpand\noexpand\noexpand\\%
+                                        {{\nwthepagenum{\number\@nwhisub}{\number\@nwhipage}}
+                                         {\@nwhixreftag}}}%
+                   \else \ifnum\@nwlopage<110 \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}\else
+                           \count@=\@nwlopage \divide\count@ by 100 \multiply\count@ by 100
+                           \ifnum\count@=\@nwlopage \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}\else
+                             \count@=\@nwlopage \divide\count@ by 100
+                             \@nwpagetemp=\@nwhipage \divide\@nwpagetemp by 100
+                             \ifnum\count@=\@nwpagetemp %  lo--least 2 digits of hi
+                               \multiply\@nwpagetemp by 100
+                               \advance \@nwhipage by -\@nwpagetemp
+                               \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}%
+                             \else \edef\@tempa{\noexpand\noexpand\noexpand\\{{\number\@nwlopage--\number\@nwhipage}{}}}%
+                             \fi
+                           \fi
+                         \fi%
+                   \fi
+                 \fi%
+                 \edef\@tempa{\noexpand\nwix@cons\noexpand\nw@pages{\@tempa}}\@tempa}
+\def\nwpageword{\@nwlangdepchk}  % chunk, was page
+\def\nwpagesword{\@nwlangdepchks}  % chunk, was page
+\def\nwpageprep{\@nwlangdepin}     % in, was on
+\newcommand\nw@genericref[2]{% what to do, name of ref
+  \expandafter\nw@g@nericref\csname r@#2\endcsname#1{#2}}
+\newcommand\nw@g@nericref[3]{% control sequence, what to do, name
+  \ifx#1\relax
+    \ref{#3}% trigger the standard `undefined ref' mechanisms
+  \else
+    \expandafter#2#1.\\%
+  \fi}
+\def\nw@selectone#1#2#3\\{#1}
+\def\nw@selecttwo#1#2#3\\{#2}
+\def\nw@selectonetwo#1#2#3\\{{#1}{#2}}
+\newcommand{\subpageref}[1]{%
+  \nwhyperreference{#1}{\nw@genericref\@subpageref{#1}}}
+\def\@subpageref#1#2#3\\{%
+  \@ifundefined{2on#2}{#2}{\nwthepagenum{#1}{#2}}}
+\newcommand{\subpagepair}[1]{%  % produces {subpage}{page}
+  \@ifundefined{r@#1}%
+    {{0}{0}}%
+    {\nw@genericref\@subpagepair{#1}}}
+\def\@subpagepair#1#2#3\\{%
+  \@ifundefined{2on#2}{{0}{#2}}{{#1}{#2}}}
+\newcommand{\sublabel}[1]{%
+  \leavevmode % needed to make \@bsphack work
+  \@bsphack
+  \nwblindhyperanchor{#1}%
+  \if@filesw {\let\thepage\relax
+   \def\protect{\noexpand\noexpand\noexpand}%
+   \edef\@tempa{\write\@auxout{\string
+      \newsublabel{#1}{{}{\thepage}}}}%
+   \expandafter}\@tempa
+   \if@nobreak \ifvmode\nobreak\fi\fi\fi\@esphack}
+\newcommand{\nosublabel}[1]{%
+  \@bsphack\if@filesw {\let\thepage\relax
+   \def\protect{\noexpand\noexpand\noexpand}%
+   \edef\@tempa{\write\@auxout{\string
+      \newlabel{#1}{{0}{\thepage}}}}%
+   \expandafter}\@tempa
+   \if@nobreak \ifvmode\nobreak\fi\fi\fi\@esphack}
+\newcommand\newsublabel{%
+  \nw@settrailers
+  \global\let\newsublabel\@newsublabel
+  \@newsublabel}
+\newcommand{\@newsublabel}[2]{%
+  \edef\this@page{\@cdr#2\@nil}%
+  \ifx\this@page\last@page\else
+    \sub@page=\z@
+  \fi
+  \edef\last@page{\this@page}
+  \advance\sub@page by \@ne
+  \ifnum\sub@page=\tw@
+    \global\@namedef{2on\this@page}{}%
+  \fi
+  \pendingsublabel{#1}%
+  \edef\@tempa##1{\noexpand\newlabel{##1}%
+    {{\number\sub@page}{\this@page}\nw@labeltrailers}}%
+  \pending@sublabels
+  \def\pending@sublabels{}}
+\newcommand\nw@settrailers{% -- won't work on first run
+  \@ifpackageloaded{nameref}%
+     {\gdef\nw@labeltrailers{{}{}{}}}%
+     {\gdef\nw@labeltrailers{}}}
+\renewcommand\nw@settrailers{% 
+  \@ifundefined{@secondoffive}%
+     {\gdef\nw@labeltrailers{}}%
+     {\gdef\nw@labeltrailers{{}{}{}}}}
+\newcommand{\nextchunklabel}[1]{%
+  \nwblindhyperanchor{#1}%   % looks slightly bogus --- nr
+  \@bsphack\if@filesw {\let\thepage\relax
+      \edef\@tempa{\write\@auxout{\string\pendingsublabel{#1}}}%
+      \expandafter}\@tempa
+   \if@nobreak \ifvmode\nobreak\fi\fi\fi\@esphack}
+\newcommand\pendingsublabel[1]{%
+  \def\@tempa{\noexpand\@tempa}%
+  \edef\pending@sublabels{\noexpand\@tempa{#1}\pending@sublabels}}
+\def\pending@sublabels{}
+\def\last@page{\relax}
+\newcount\sub@page
+\def\@alphasubpagenum#1#2{#2\ifnum#1=0 \else\@alph{#1}\fi}
+\def\@nosubpagenum#1#2{#2}
+\def\@numsubpagenum#1#2{#2\ifnum#1=0 \else.\@arabic{#1}\fi}
+\def\nwopt@nosubpage{\let\nwthepagenum=\@nosubpagenum\nwopt@nomargintag}
+\def\nwopt@numsubpage{\let\nwthepagenum=\@numsubpagenum}
+\def\nwopt@alphasubpage{\let\nwthepagenum=\@alphasubpagenum}
+\nwopt@alphasubpage
+\newcount\@nwalph@n
+\let\@nwalph@d\@tempcnta
+\let\@nwalph@bound\@tempcntb
+\def\@nwlongalph#1{{%
+  \@nwalph@n=#1\advance\@nwalph@n by-1
+  \@nwalph@bound=26
+  \loop\ifnum\@nwalph@n<\@nwalph@bound\else
+     \advance\@nwalph@n by -\@nwalph@bound
+     \multiply\@nwalph@bound by 26
+  \repeat
+  \loop\ifnum\@nwalph@bound>1
+    \divide\@nwalph@bound by 26
+    \@nwalph@d=\@nwalph@n\divide\@nwalph@d by \@nwalph@bound
+    % d := d * bound ; n -:= d; d := d / bound --- saves a temporary
+    \multiply\@nwalph@d by \@nwalph@bound
+    \advance\@nwalph@n by -\@nwalph@d
+    \divide\@nwalph@d by \@nwalph@bound
+    \advance\@nwalph@d by 1 \@alph{\@nwalph@d}%
+  \repeat
+}}
+\newcount\nw@chunkcount
+\nw@chunkcount=\@ne
+\newcommand{\weblabel}[1]{%
+  \@bsphack
+  \nwblindhyperanchor{#1}%
+  \if@filesw {\let\thepage\relax
+   \def\protect{\noexpand\noexpand\noexpand}%
+   \edef\@tempa{\write\@auxout{\string
+      \newsublabel{#1}{{}{\number\nw@chunkcount}}}}%
+   \expandafter}\@tempa
+   \global\advance\nw@chunkcount by \@ne
+   \if@nobreak \ifvmode\nobreak\fi\fi\fi\@esphack}
+\def\nwopt@webnumbering{%
+  \let\sublabel=\weblabel
+  \def\nwpageword{chunk}\def\nwpagesword{chunks}%
+  \def\nwpageprep{in}}
+% \nwindexdefn{printable name}{identifying label}{label of chunk}
+% \nwindexuse{printable name}{identifying label}{label of chunk}
+
+\def\nwindexdefn#1#2#3{\@auxix{\protect\nwixd}{#2}{#3}}
+\def\nwindexuse#1#2#3{\@auxix{\protect\nwixu}{#2}{#3}}
+
+\def\@auxix#1#2#3{% {marker}{id label}{subpage label}
+   \@bsphack\if@filesw {\let\nwixd\relax\let\nwixu\relax
+   \def\protect{\noexpand\noexpand\noexpand}%
+   \edef\@tempa{\write\@auxout{\string\nwixadd{#1}{#2}{#3}}}%
+   \expandafter}\@tempa
+   \if@nobreak \ifvmode\nobreak\fi\fi\fi\@esphack}
+% \nwixadd{marker}{idlabel}{subpage label}
+\def\nwixadd#1#2#3{%
+  \@ifundefined{nwixl@#2}%
+    {\global\@namedef{nwixl@#2}{#1{#3}}}%
+    {\expandafter\nwix@cons\csname nwixl@#2\endcsname{#1{#3}}}}
+\def\@nwsubscriptident#1#2{\mbox{$\mbox{#1}_{\mathrm{\subpageref{#2}}}$}}
+\def\@nwnosubscriptident#1#2{#1}
+\def\@nwhyperident#1#2{\leavevmode\nwhyperreference{#2}{#1}}
+\def\nwopt@subscriptidents{%
+  \let\nwlinkedidentq\@nwsubscriptident
+  \let\nwlinkedidentc\@nwsubscriptident
+}
+\def\nwopt@nosubscriptidents{%
+  \let\nwlinkedidentq\@nwnosubscriptident
+  \let\nwlinkedidentc\@nwnosubscriptident
+}
+\def\nwopt@hyperidents{%
+  \let\nwlinkedidentq\@nwhyperident
+  \let\nwlinkedidentc\@nwhyperident
+}
+\def\nwopt@nohyperidents{%
+  \let\nwlinkedidentq\@nwnosubscriptident
+  \let\nwlinkedidentc\@nwnosubscriptident
+}
+\def\nwopt@subscriptquotedidents{%
+  \let\nwlinkedidentq\@nwsubscriptident
+}
+\def\nwopt@nosubscriptquotedidents{%
+  \let\nwlinkedidentq\@nwnosubscriptident
+}
+\def\nwopt@hyperquotedidents{%
+  \let\nwlinkedidentq\@nwhyperident
+}
+\def\nwopt@nohyperquotedidents{%
+  \let\nwlinkedidentq\@nwnosubscriptident
+}
+\nwopt@hyperidents
+\newcount\@commacount
+\def\commafy#1{%
+  {\nwix@listcount{#1}\@commacount=\nwix@counter
+   \let\@comma@each=\\%
+   \ifcase\@commacount\let\\=\@comma@each\or\let\\=\@comma@each\or
+     \def\\{\def\\{ \@nwlangdepand\ \@comma@each}\@comma@each}\else
+     \def\\{\def\\{, %
+                   \advance\@commacount by \m@ne
+                   \ifnum\@commacount=1 \@nwlangdepand~\fi\@comma@each}\@comma@each}\fi
+   #1}}
+\def\nwix@cons#1#2{% {list}{\marker{element}}
+  {\toks0=\expandafter{#1}\def\@tempa{#2}\toks2=\expandafter{\@tempa}%
+   \xdef#1{\the\toks0 \the\toks2 }}}
+\def\nwix@uses#1{% {label}
+  \def\nwixu{\\}\let\nwixd\@gobble\@nameuse{nwixl@#1}}
+\def\nwix@defs#1{% {label}
+  \def\nwixd{\\}\let\nwixu\@gobble\@nameuse{nwixl@#1}}
+\newcount\nwix@counter
+\def\nwix@listcount#1{% {list with \\}
+  {\count@=0
+   \def\\##1{\advance\count@ by \@ne }%
+   #1\global\nwix@counter=\count@ }}
+\def\nwix@usecount#1{\nwix@listcount{\nwix@uses{#1}}}
+\def\nwix@defcount#1{\nwix@listcount{\nwix@defs{#1}}}
+\def\nwix@id@defs#1{% index pair
+  {{\Tt \@car#1\@nil}%
+  \def\\##1{\nwix@defs@space\subpageref{##1}}\nwix@defs{\@cdr#1\@nil}}}
+  % useful above to change ~ into something that can break
+% this option is undocumented because I think breakdefs is always right
+\def\nwopt@breakdefs{\def\nwix@defs@space{\penalty200\ }}
+\def\nwopt@nobreakdefs{\def\nwix@defs@space{~}} % old code
+\nwopt@breakdefs
+\def\nwidentuses#1{% list of index pairs
+  \nwcodecomment{\@nwlangdepuss\ \let\\=\nwix@id@defs\commafy{#1}.}}
+\def\nwix@totaluses#1{% list of index pairs
+  {\count@=0
+   \def\\##1{\nwix@usecount{\@cdr##1\@nil}\advance\count@ by\nwix@counter}%
+   #1\global\nwix@counter\count@ }}
+\def\nwix@id@uses#1#2{% {ident}{label}
+  \nwix@usecount{#2}\ifnum\nwix@counter>0
+    {\advance\leftskip by \codemargin
+     \nwcodecomment{{\Tt #1}, \@nwlangdepusd\ \nwpageprep\ \@pagesl{\nwix@uses{#2}}.}}%
+  \else
+    \ifnw@hideunuseddefs\else
+      {\advance\leftskip by \codemargin \nwcodecomment{{\Tt #1}, \@nwlangdepnvu.}}%
+    \fi
+  \fi}
+\def\nwidentdefs#1{% list of index pairs
+  \ifnw@hideunuseddefs\nwix@totaluses{#1}\else\nwix@listcount{#1}\fi
+  \ifnum\nwix@counter>0
+    \nwcodecomment{\@nwlangdepdfs:}%
+    {\def\\##1{\nwix@id@uses ##1}#1}%
+  \fi}
+\newif\ifnw@hideunuseddefs\nw@hideunuseddefsfalse
+\def\nwopt@hideunuseddefs{\nw@hideunuseddefstrue}
+\def\nwopt@noidentxref{%
+  \let\nwidentdefs\@gobble
+  \let\nwidentuses\@gobble}
+\def\nw@underlinedefs{% {list with \nwixd, \nwixu}
+  \let\\=\relax\def\nw@comma{, }
+  \def\nwixd##1{\\\underline{\subpageref{##1}}\let\\\nw@comma}%
+  \def\nwixu##1{\\\subpageref{##1}\let\\\nw@comma}}
+
+\def\nw@indexline#1#2{%
+   {\indent {\Tt #1}: \nw@underlinedefs\@nameuse{nwixl@#2}\par}}
+
+\newenvironment{thenowebindex}{\parindent=-10pt \parskip=\z@ 
+        \advance\leftskip by 10pt 
+        \advance\rightskip by 0pt plus1in\par\@afterindenttrue
+    \def\\##1{\nw@indexline##1}}{}
+\def\nowebindex{%
+  \@ifundefined{nwixs@i}%
+     {\@warning{The \string\nowebindex\space is empty}}%
+     {\begin{thenowebindex}\@nameuse{nwixs@i}\end{thenowebindex}}}
+\def\nowebindex@external{%
+  {\let\nwixadds@c=\@gobble
+   \def\nwixadds@i##1{\nw@indexline##1}%
+   \def\nwixaddsx##1##2{\@nameuse{nwixadds@##1}{##2}}%
+   \begin{thenowebindex}\@input{\jobname.nwi}\end{thenowebindex}}}
+\def\nwixlogsorted#1#2{% list data
+   \@bsphack\if@filesw 
+     \toks0={#2}\immediate\write\@auxout{\string\nwixadds{#1}{\the\toks0}}
+   \if@nobreak \ifvmode\nobreak\fi\fi\fi\@esphack}
+\def\nwixadds#1#2{%
+  \@ifundefined{nwixs@#1}%
+    {\global\@namedef{nwixs@#1}{\\{#2}}}%
+    {\expandafter\nwix@cons\csname nwixs@#1\endcsname{\\{#2}}}}
+\let\nwixaddsx=\@gobbletwo
+\def\nwopt@externalindex{%
+  \ifx\nwixadds\@gobbletwo % already called
+  \else
+    \let\nwixaddsx=\nwixadds \let\nwixadds=\@gobbletwo
+    \let\nowebindex=\nowebindex@external
+    \let\nowebchunks=\nowebchunks@external
+  \fi}
+\def\nowebchunks{%
+  \@ifundefined{nwixs@c}%
+     {\@warning{The are no \string\nowebchunks}}%
+     {\begin{thenowebchunks}\@nameuse{nwixs@c}\end{thenowebchunks}}}
+\def\nowebchunks@external{%
+  {\let\nwixadds@i=\@gobble
+   \def\nwixadds@c##1{\nw@onechunk##1}%
+   \def\nwixaddsx##1##2{\@nameuse{nwixadds@##1}{##2}}%
+   \begin{thenowebchunks}\@input{\jobname.nwi}\end{thenowebchunks}}}
+    \@namedef{r@nw@notdef}{{0}{(\@nwlangdepnvd)}}
+\def\nw@chunkunderlinedefs{% {list of labels with \nwixd, \nwixu}
+  \let\\=\relax\def\nw@comma{, }
+  \def\nwixd##1{\\\underline{\subpageref{##1}}\let\\\nw@comma}%
+  \def\nwixu##1{\\\subpageref{##1}\let\\\nw@comma}}
+\def\nw@onechunk#1#2#3{% {name}{label of first definition}{list with \nwixd, \nwixu}
+  \@ifundefined{r@#2}{}{%
+    \indent\LA #1~{\nwtagstyle\subpageref{#2}}\RA 
+    \if@nwlongchunks{~\nw@chunkunderlinedefs#3}\fi\par}}
+\newenvironment{thenowebchunks}{\vskip3pt
+  \parskip=\z@\parindent=-10pt \advance\leftskip by 10pt
+  \advance\rightskip by 0pt plus10pt \@afterindenttrue
+  \def\\##1{\nw@onechunk##1}}{}
+\newif\if@nwlongchunks
+\@nwlongchunksfalse
+\let\nwopt@longchunks\@nwlongchunkstrue
+\newcommand\@nw@hyper@ref{\hyperreference} % naras
+\newcommand\@nw@hyper@anc{\blindhyperanchor} % naras
+\newcommand\@nw@hyperref@ref[2]{\hyperlink{noweb.#1}{#2}}  % nr
+\newcommand\@nw@hyperref@anc[1]{\hypertarget{noweb.#1}{\relax}}  % nr
+%%\renewcommand\@nw@hyperref@ref[2]{{#2}}  % nr
+%%\renewcommand\@nw@hyperref@anc[1]{}  % nr
+\newcommand\nwhyperreference{%
+  \@ifundefined{hyperlink}
+    {\@ifundefined{hyperreference}
+       {\global\let\nwhyperreference\@gobble}
+       {\global\let\nwhyperreference\@nw@hyper@ref}}
+    {\global\let\nwhyperreference\@nw@hyperref@ref}%
+  \nwhyperreference
+}
+
+\newcommand\nwblindhyperanchor{%
+  \@ifundefined{hyperlink}
+    {\@ifundefined{hyperreference}
+       {\global\let\nwblindhyperanchor\@gobble}
+       {\global\let\nwblindhyperanchor\@nw@hyper@anc}}
+    {\global\let\nwblindhyperanchor\@nw@hyperref@anc}%
+  \nwblindhyperanchor
+}
+\newcommand\nwanchorto{%
+  \begingroup\let\do\@makeother\dospecials
+     \catcode`\{=1 \catcode`\}=2 \nw@anchorto}
+\newcommand\nw@anchorto[1]{\endgroup\def\nw@next{#1}\nw@anchortofin}
+\newcommand\nw@anchortofin[1]{#1\footnote{See URL \texttt{\nw@next}.}}
+\let\nwanchorname\@gobble
+\newif\ifhtml
+\htmlfalse
+\let\nwixident=\relax
+\def\nwbackslash{\char92}
+\def\nwlbrace{\char123}
+\def\nwrbrace{\char125}
+\def\nwopt@english{%
+  \def\@nwlangdepdef{This definition is continued}%
+  \def\@nwlangdepcud{This code is used}%
+  \def\@nwlangdeprtc{Root chunk (not used in this document)}%
+  \def\@nwlangdepcwf{This code is written to file}%
+  \def\@nwlangdepchk{chunk}%
+  \def\@nwlangdepchks{chunks}%
+  \def\@nwlangdepin{in}%
+  \def\@nwlangdepand{and}%
+  \def\@nwlangdepuss{Uses}%
+  \def\@nwlangdepusd{used}%
+  \def\@nwlangdepnvu{never used}%
+  \def\@nwlangdepdfs{Defines}%
+  \def\@nwlangdepnvd{never defined}%
+}
+\let\nwopt@american\nwopt@english
+\def\nwopt@portuges{%
+  \def\@nwlangdepdef{Defini\c{c}\~ao continuada em}%
+  % This definition is continued
+  \def\@nwlangdepcud{C\'odigo usado em}%
+  % This code is used
+  \def\@nwlangdeprtc{Fragmento de topo (sem uso no documento)}%
+  % Root chunk (not used in this document)
+  \def\@nwlangdepcwf{Este c\'odigo foi escrito no ficheiro}%
+  % This code is written to file
+  \def\@nwlangdepchk{fragmento}%
+  % chunk
+  \def\@nwlangdepchks{fragmentos}%
+  % chunks
+  \def\@nwlangdepin{no(s)}%
+  % in
+  \def\@nwlangdepand{e}%
+  % and
+  \def\@nwlangdepuss{Usa}%
+  % Uses
+  \def\@nwlangdepusd{usado}%
+  % used
+  \def\@nwlangdepnvu{nunca usado}%
+  % never used
+  \def\@nwlangdepdfs{Define}%
+  % Defines
+  \def\@nwlangdepnvd{nunca definido}%
+  % never defined
+}
+\def\nwopt@brazil{%
+  \def\@nwlangdepdef{Defini\c{c}\~{a}o continua}%
+  % This definition is continued
+  \def\@nwlangdepcud{C\'odigo usado}%
+  % This code is used
+  \def\@nwlangdeprtc{Trecho raiz, isto é, este trecho come\c{c}a aqui}%
+  % Root chunk (not used in this document)
+  \def\@nwlangdepcwf{C\'odigo escrito no arquivo}%
+  % This code is written to file
+  \def\@nwlangdepchk{trecho}%
+  % chunk
+  \def\@nwlangdepchks{trechos}%
+  % chunks
+  \def\@nwlangdepin{@}%
+  % in
+  \def\@nwlangdepand{e}%
+  % and
+  \def\@nwlangdepuss{Usa}%
+  % Uses
+  \def\@nwlangdepusd{usado}%
+  % used
+  \def\@nwlangdepnvu{nunca usado}%
+  % never used
+  \def\@nwlangdepdfs{Define}%
+  % Defines
+  \def\@nwlangdepnvd{nunca definido}%
+  % never defined
+}
+\def\nwopt@frenchb{%
+  \def\@nwlangdepdef{Suite de la d\'efinition}%
+  % This definition is continued
+  \def\@nwlangdepcud{Ce code est employ\'e}%
+  % This code is used
+  \def\@nwlangdeprtc{Morceau racine (pas employ\'e dans ce document)}%
+  % Root chunk (not used in this document)
+  \def\@nwlangdepcwf{Ce code est \'ecrit dans le fichier}%
+  % This code is written to file
+  \def\@nwlangdepchk{le morceau}%
+  % chunk
+  \def\@nwlangdepchks{les morceaux}%
+  % chunks
+  \def\@nwlangdepin{dans}%
+  % in
+  \def\@nwlangdepand{et}%
+  % and
+  \def\@nwlangdepuss{Utilise}%
+  % Uses
+  \def\@nwlangdepusd{utilis\'{e}}%
+  % used
+  \def\@nwlangdepnvu{jamais employ\'{e}}%
+  % never used
+  \def\@nwlangdepdfs{D\'{e}finit}%
+  % Defines
+  % Cannot use the accent here: \def\@nwlangdepnvd{jamais d\'{e}fini}%
+  \def\@nwlangdepnvd{jamais defini}%
+  % never defined
+}
+\let\nwopt@french\nwopt@frenchb
+\def\nwopt@german{%
+  \def\@nwlangdepdef{Diese Definition wird fortgesetzt}%
+  % This definition is continued
+  \def\@nwlangdepcud{Dieser Code wird benutzt}%
+  % This code is used
+  \def\@nwlangdeprtc{Hauptteil (nicht in diesem Dokument benutzt)}%
+  % Root chunk (not used in this document)
+  %\def\@nwlangdepcwf{Dieser Code schreibt man zum File}%
+  \def\@nwlangdepcwf{Dieser Code geht in Datei}%
+  % This code is written to file
+  \def\@nwlangdepchk{dem Teil}%
+  % chunk
+  %\def\@nwlangdepchks{Teils}%   
+  \def\@nwlangdepchks{den Teilen}%   
+  % chunks
+  \def\@nwlangdepin{in}%
+  % in
+  \def\@nwlangdepand{und}%
+  % and
+  \def\@nwlangdepuss{Benutzt}%
+  % Uses
+  \def\@nwlangdepusd{benutzt}%
+  % used
+  \def\@nwlangdepnvu{nicht benutzt}%
+  % never used
+  \def\@nwlangdepdfs{Definiert}%
+  % Defines
+  \def\@nwlangdepnvd{nicht definiert}%
+  % never defined
+}
+\def\nwopt@german{%
+  \def\@nwlangdepdef{Diese Definition wird fortgesetzt}%
+  % This definition is continued
+  \def\@nwlangdepcud{Dieser Code wird benutzt}%
+  % This code is used
+  \def\@nwlangdeprtc{Hauptteil (nicht in diesem Dokument benutzt)}%
+  % Root chunk (not used in this document)
+  \def\@nwlangdepcwf{Dieser Code schreibt man zum File}%
+  % This code is written to file
+  \def\@nwlangdepchk{Teil}%
+  % chunk
+  \def\@nwlangdepchks{Teils}%
+  % chunks
+  \def\@nwlangdepin{im}%
+  % in
+  \def\@nwlangdepand{und}%
+  % and
+  \def\@nwlangdepuss{Benutzt}%
+  % Uses
+  \def\@nwlangdepusd{benutzt}%
+  % used
+  \def\@nwlangdepnvu{nicht benutzt}%
+  % never used
+  \def\@nwlangdepdfs{Definiert}%
+  % Defines
+  \def\@nwlangdepnvd{nicht definiert}%
+  % never defined
+}
+\let\nwopt@ngerman\nwopt@german
+\ifx\languagename\undefined % default is English
+  \noweboptions{english}
+\else
+  \@ifundefined{nwopt@\languagename}
+     {\noweboptions{english}}
+     {\expandafter\noweboptions\expandafter{\languagename}}
+\fi
+\let\obeyedspace\@xobeysp

scripts/build-index-from-fs.lisp

@@ -5,57 +5,6 @@
     (load quicklisp-init)))
 (ql:quickload :loop :silent t)
 (in-package #:loop)
-(defun index-from-fs! ()
-  (loop for path in (in-groups (directory "**/*"))
-        do (let* ((g (str:trim (first (last (pathname-directory path)))))
-                  (i (str:trim (pathname-name path)))
-                  (m (ignore-errors (str:trim (extract-mid (fetch-article g i))))))
-             (when (and m (> (length m) 0))
-               (let* ((hash (index-hash m))
-                      (idx-path (index-path hash)))
-                 (ensure-index-directories! hash)
-                 ;; If index file exists, verify if it shares our inode. If not, force-link it.
-                 (cond
-                   ((probe-file idx-path)
-                    (unless (= (handler-case (sb-posix:stat-ino (sb-posix:stat (uiop:native-namestring path)))
-                                 (sb-posix:syscall-error () 0))
-                               (handler-case (sb-posix:stat-ino (sb-posix:stat (uiop:native-namestring idx-path)))
-                                 (sb-posix:syscall-error () -1)))
-                      ;; Overwrite stale/mismatched index entry with the correct hard link
-                      (ignore-errors (delete-file idx-path))
-                      (sb-posix:link (uiop:native-namestring path) idx-path)
-                      (format t "article ~a/~a force-linked to index ~a~%" g i hash)))
-                   (t
-                    (handler-case
-                        (progn
-                          (sb-posix:link (uiop:native-namestring path) idx-path)
-                          (format t "article ~a/~a indexed by ~a hash ~a~%" g i m hash))
-                      (sb-posix:syscall-error (c)
-                        (if (= (sb-posix:syscall-errno c) sb-posix:eexist)
-                            (format t "article ~a/~a already indexed concurrently.~%" g i)
-                            (error c)))))))))))
-
-(defun index-from-fs!-old ()
-  (loop for path in (in-groups (directory "**/*"))
-        do (let* ((g (str:trim (first (last (pathname-directory path)))))
-                  (i (str:trim (pathname-name path)))
-                  (m (ignore-errors (str:trim (extract-mid (fetch-article g i))))))
-             (when (and m (> (length m) 0))
-               (let* ((hash (index-hash m))
-                      (idx-path (index-path hash)))
-                 (if (probe-file idx-path) ;; article exists in index: unify inodes by re-linking group file to index
-                     (unless (= (get-file-inode path) (get-file-inode idx-path))
-                       (delete-file path)
-                       (sb-posix:link (uiop:native-namestring idx-path) (uiop:native-namestring path))
-                       (format t "article ~a/~a relinked-to-existing-index ~a~%" g i hash))
-                     (progn
-                       (ensure-index-directories! hash)
-                       (handler-case
-                           (progn
-                             (sb-posix:link (uiop:native-namestring path) idx-path)
-                             (format t "article ~a/~a mid ~a hashes-to ~a~%" g i m hash))
-                         (sb-posix:syscall-error (c)
-                           (if (= (sb-posix:syscall-errno c) sb-posix:eexist)
-                               (format t "article ~a/~a indexed due to a cross-post? EEXIST.~%" g i)
-                               (error c)))))))))))
+(drop-create-index!)
 (index-from-fs!)
+(format t "Index built.~%")

scripts/find-duplicates.lisp

@@ -1,37 +0,0 @@
-#-quicklisp
-(let ((quicklisp-init (merge-pathnames "quicklisp/setup.lisp"
-                                       (user-homedir-pathname))))
-  (when (probe-file quicklisp-init)
-    (load quicklisp-init)))
-(ql:quickload :loop :silent t)
-(in-package #:loop)
-(defun find-duplicate-mids ()
-  "Displays any duplicated message-ids across all group articles."
-  (let ((mid-map (make-hash-table :test 'equal))
-        (found-dupes nil))
-    ;; collect all articles and group by message-id
-    (loop for path in (in-groups (directory "**/*"))
-          do (let* ((dir-list (pathname-directory path))
-                    (g (when dir-list (str:trim (first (last dir-list)))))
-                    (i (pathname-name path))
-                    (i-str (when i (str:trim i))))
-               ;; process numeric article files only
-               (when (and g i-str (parse-integer i-str :junk-allowed t))
-                 (let ((mid (ignore-errors (get-mid-from-path path))))
-                   (when (and mid (> (length (str:trim mid)) 0))
-                     ;; push the (group . article-number) pair into the hash map
-                     (push (cons g i-str) (gethash mid mid-map)))))))
-    ;; remove duplicates
-    (maphash (lambda (mid locations)
-               (when (> (length locations) 1)
-                 (push (cons mid locations) found-dupes)))
-             mid-map)
-    ;; displays
-    (when found-dupes
-      (loop for (mid . locs) in found-dupes
-            do (format t "message-id: ~a~%" mid)
-            ;; sort by group
-            (let ((sorted-locs (sort locs #'string-lessp :key #'car)))
-              (loop for (g . i) in sorted-locs
-                    do (format t "~a/~a~%" g i)))))))
-(find-duplicate-mids)

scripts/verify-index.lisp

@@ -1,37 +0,0 @@
-#-quicklisp
-(let ((quicklisp-init (merge-pathnames "quicklisp/setup.lisp"
-                                       (user-homedir-pathname))))
-  (when (probe-file quicklisp-init)
-    (load quicklisp-init)))
-(ql:quickload :loop :silent t)
-(in-package #:loop)
-(defun verify-index-inodes ()
-  "Iterates over all group articles and prints whether they share an inode with index/."
-  (loop for path in (in-groups (directory "**/*"))
-        do (let* ((dir-list (pathname-directory path))
-                  (g (when dir-list (str:trim (first (last dir-list)))))
-                  (i (pathname-name path))
-                  (i-str (when i (str:trim i))))
-             ;; ignore metadata and directories
-             (when (and g i-str (parse-integer i-str :junk-allowed t))
-               (let ((mid (ignore-errors (get-mid-from-path path))))
-                 (if (or (null mid) (zerop (length (str:trim mid))))
-                     (format t "no-mid  ~a/~a couldn't find message-id~%" g i-str)
-                     (let* ((hash (index-hash mid))
-                            (idx-path (index-path hash))
-                            (grp-inode (get-file-inode path))
-                            (idx-inode (get-file-inode idx-path)))
-                       (cond
-                         ((null idx-inode)
-                          (stdout "no-index ~a/~a mid ~a hashes-to ~a~%"
-                                  g i-str mid idx-path))
-                         ((= grp-inode idx-inode)
-                          (stdout "okay ~a/~a shares-inode ~a with ~a~%"
-                                  g i-str grp-inode idx-path))
-                         (t
-                          (stdout "mismatch ~a/~a inode ~a =/= inode ~a hash ~a~%"
-                                  g i-str grp-inode idx-inode idx-path))))))))))
-
-(defun verify-index ()
-  (verify-index-inodes))
-(verify-index)

version.lisp

@@ -1,2 +0,0 @@
-(in-package :loop)
-(defparameter *git-hash* "da757c7")