From d5b501c4046fbdc2354607c12f9f8230159e6135 Mon Sep 17 00:00:00 2001
From: Rob Austein <sra@hactrn.net>
Date: Fri, 9 Jul 2021 21:21:02 +0000
Subject: Incorporate project-independent stuff I did for IETF NOC

---
 references/convert-and-slurp-attachments.sh |  18 --
 references/extract-wiki-content.xsl         | 177 ---------------
 references/generate-json.py                 | 154 -------------
 references/pelicanconf.py                   |  42 ----
 references/publishconf.py                   |  19 --
 references/rpki-wiki-to-markdown.py         | 341 ----------------------------
 references/schema.sql                       | 177 ---------------
 references/trac-wiki-to-markdown.rb         |  51 -----
 references/trac2down.py                     |  61 -----
 9 files changed, 1040 deletions(-)
 delete mode 100755 references/convert-and-slurp-attachments.sh
 delete mode 100644 references/extract-wiki-content.xsl
 delete mode 100755 references/generate-json.py
 delete mode 100644 references/pelicanconf.py
 delete mode 100644 references/publishconf.py
 delete mode 100644 references/rpki-wiki-to-markdown.py
 delete mode 100644 references/schema.sql
 delete mode 100644 references/trac-wiki-to-markdown.rb
 delete mode 100644 references/trac2down.py

(limited to 'references')

diff --git a/references/convert-and-slurp-attachments.sh b/references/convert-and-slurp-attachments.sh
deleted file mode 100755
index ce7f34d..0000000
--- a/references/convert-and-slurp-attachments.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/bin/sh -
-
-ls | fgrep -v . |
-while read page
-do
-    base="https://trac.rpki.net"
-    path="/wiki/$(echo $page | sed s=%2F=/=g)"
-
-    # Fetch the Wiki page, extract the useful portion of the HTML, convert that into Markdown
-    curl "${base}${path}" |
-    xsltproc --html extract-wiki-content.xsl - |
-    html2markdown --no-skip-internal-links --reference-links >"$page.md"
-
-    # Fetch a ZIP file containing any attachments, clean up if result is empty or broken
-    curl "${base}/zip-attachment${path}/" >"$page.zip"
-    zipinfo "$page.zip" >/dev/null 2>&1 || rm -f "$page.zip"
-
-done
diff --git a/references/extract-wiki-content.xsl b/references/extract-wiki-content.xsl
deleted file mode 100644
index e4376e8..0000000
--- a/references/extract-wiki-content.xsl
+++ /dev/null
@@ -1,177 +0,0 @@
-<!-- 
- - XSL transform to extract useful content of a Trac Wiki page.
- -
- - Django generates weird HTML for ordered lists: it sometimes breaks
- - up a single ordered list into multiple adjacent <ol/> elements,
- - using the @start attribute to try to make the result look like a
- - single ordered list.  This looks OK in Firefox but confuses the
- - bejesus out of both html2markdown and htmldoc.  In some cases this is
- - probably unavoidable, but most of the uses of this I've seen look
- - gratuitous, and are probably the result of code modulararity issues
- - in Django.
- -
- - So we try to clean this up, by merging adjacent <ol/> elements where
- - we can.  The merge incantation is an adaptation of:
- -
- - http://stackoverflow.com/questions/1806123/merging-adjacent-nodes-of-same-type-xslt-1-0
- -
- - There may be a more efficient way to do this, but I don't think
- - we care, and this seems to work.
- -
- - Original author's explanation:
- -
- - The rather convoluted XPath expression for selecting the following
- - sibling aaa nodes which are merged with the current one:
- -
- - following-sibling::aaa[                       # following 'aaa' siblings
- -   not(preceding-sibling::*[                   #   if they are not preceded by
- -     not(self::aaa) and                        #     a non-'aaa' node
- -     not(following-sibling::aaa = current())   #     after the current node
- -   ])
- - ]
- -->
-
-  <xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
-
-    <xsl:output method="xml" encoding="us-ascii" omit-xml-declaration="yes" />
-
-    <xsl:param name="basename"/>
-    <xsl:param name="path"/>
-
-    <xsl:template match="/">
-      <xsl:message><xsl:value-of select="concat('Got path: ', $path)"/></xsl:message>
-      <xsl:variable name="id">
-        <xsl:call-template name="path-to-id">
-          <xsl:with-param name="p" select="$path"/>
-        </xsl:call-template>
-      </xsl:variable>
-      <xsl:message><xsl:value-of select="concat('Got id: ', $id)"/></xsl:message>
-      <xsl:comment>NEW PAGE</xsl:comment>
-      <html>
-        <body>
-          <div id="{$id}">
-            <xsl:apply-templates select="//div[@id = 'wikipage']/*"/>
-          </div>
-        </body>
-      </html>
-    </xsl:template>
-
-    <xsl:template match="//div[contains(@class, 'wiki-toc')]"/>
-
-    <xsl:template match="//span[@class = 'icon' and not(*)]"/>
-
-    <xsl:template match="a[contains(@class, 'wiki') and
-                           starts-with(@href, '/wiki/')]">
-      <xsl:variable name="href">
-        <xsl:call-template name="path-to-id">
-          <xsl:with-param name="p" select="@href"/>
-        </xsl:call-template>
-      </xsl:variable>
-      <a href="#{$href}">
-        <xsl:apply-templates select="@*[name() != 'href']"/>
-        <xsl:apply-templates/>
-      </a>
-    </xsl:template>
-
-    <xsl:template match="a[starts-with(@href, '/attachment/wiki/')]">
-      <a href="{concat($basename, @href)}">
-        <xsl:apply-templates select="@*[name() != 'href']"/>
-        <xsl:apply-templates/>
-      </a>
-    </xsl:template>
-
-    <xsl:template match="img[starts-with(@src, '/raw-attachment/wiki/')]">
-      <img src="{concat($basename, @src)}">
-        <xsl:apply-templates select="@*[name() != 'src']"/>
-        <xsl:apply-templates/>
-      </img>
-    </xsl:template>
-
-    <xsl:template match="object[starts-with(@data, '/raw-attachment/wiki/') or
-                                starts-with(@data, '/graphviz/')]">
-      <object data="{concat($basename, @data)}">
-        <xsl:apply-templates select="@*[name() != 'data']"/>
-        <xsl:apply-templates/>
-      </object>
-    </xsl:template>
-
-    <xsl:template match="embed[starts-with(@src, '/raw-attachment/wiki/') or
-                               starts-with(@src, '/graphviz/')]">
-      <embed src="{concat($basename, @src)}">
-        <xsl:apply-templates select="@*[name() != 'src']"/>
-        <xsl:apply-templates/>
-      </embed>
-    </xsl:template>
-
-    <xsl:template match="text()[contains(., '&#8203;')]">
-      <xsl:call-template name="remove-zero-width-spaces">
-        <xsl:with-param name="s" select="."/>
-      </xsl:call-template>
-    </xsl:template>
-
-    <xsl:template match="@*|node()">
-      <xsl:copy>
-        <xsl:copy-of select="@*"/>
-        <xsl:apply-templates/>
-      </xsl:copy>
-    </xsl:template>
-
-    <xsl:template name="path-to-id">
-      <xsl:param name="p"/>
-      <xsl:text>_</xsl:text>
-      <xsl:call-template name="replace">
-        <xsl:with-param name="s" select="$p"/>
-        <xsl:with-param name="old">/</xsl:with-param>
-        <xsl:with-param name="new">.</xsl:with-param>
-      </xsl:call-template>
-    </xsl:template>
-
-    <xsl:template name="remove-zero-width-spaces">
-      <xsl:param name="s"/>
-      <xsl:call-template name="replace">
-        <xsl:with-param name="s" select="$s"/>
-        <xsl:with-param name="old">&#8203;</xsl:with-param>
-        <xsl:with-param name="new"/>
-      </xsl:call-template>
-    </xsl:template>
-
-    <xsl:template name="replace">
-      <xsl:param name="s"/>
-      <xsl:param name="old"/>
-      <xsl:param name="new"/>
-      <xsl:choose>
-        <xsl:when test="contains($s, $old)">
-          <xsl:call-template name="replace">
-            <xsl:with-param name="s" select="concat(substring-before($s, $old),
-                                                    $new,
-                                                    substring-after($s, $old))"/>
-            <xsl:with-param name="old" select="$old"/>
-            <xsl:with-param name="new" select="$new"/>
-          </xsl:call-template>
-        </xsl:when>
-        <xsl:otherwise>
-          <xsl:value-of select="$s"/>
-        </xsl:otherwise>
-      </xsl:choose>
-    </xsl:template>
-
-    <xsl:template match="ol">
-      <xsl:if test="not(preceding-sibling::*[1]/self::ol)">
-        <xsl:variable name="following"
-                      select="following-sibling::ol[
-                                not(preceding-sibling::*[
-                                  not(self::ol) and
-                                  not(following-sibling::ol = current())
-                                ])
-                              ]"/>
-        <xsl:copy>
-          <xsl:apply-templates select="$following/@*[name() != 'start']"/>
-          <xsl:apply-templates select="@*"/>
-          <xsl:apply-templates select="node()"/>
-          <xsl:apply-templates select="$following/node()"/>
-        </xsl:copy>
-      </xsl:if>
-    </xsl:template>
-
-  </xsl:transform>
-
diff --git a/references/generate-json.py b/references/generate-json.py
deleted file mode 100755
index b8b1f38..0000000
--- a/references/generate-json.py
+++ /dev/null
@@ -1,154 +0,0 @@
-#!/usr/bin/env python
-
-# Generate JSON to import Trac tickets into GitHub issues using the new import API
-# described at https://gist.github.com/jonmagic/5282384165e0f86ef105
-
-import os
-import time
-import json
-import yaml
-import sqlite3
-import hashlib
-import argparse
-import subprocess
-
-ticket_query = '''
-SELECT
-    id,
-    type,
-    owner,
-    reporter,
-    milestone,
-    status,
-    resolution,
-    summary,
-    description,
-    component,
-    priority,
-    time       / 1000000 AS createdtime,
-    changetime / 1000000 AS modifiedtime
-FROM
-    ticket
-ORDER BY
-    id
-'''
-
-comment_query = '''
-SELECT
-    time / 1000000 AS createdtime,
-    author,
-    newvalue
-FROM
-    ticket_change
-WHERE
-    ticket = ?
-AND
-    field = 'comment'
-AND
-    newvalue <> ''
-ORDER BY
-    time
-'''
-
-attachment_query = '''
-SELECT
-    id,
-    filename,
-    size,
-    author,
-    description,
-    ipnr,
-    time / 1000000 AS createdtime
-FROM
-    attachment
-WHERE
-    id = ?
-AND
-    type = 'ticket'
-ORDER BY
-    time, filename
-'''
-
-def isotime(t):
-  return None if t == 0 else time.strftime("%Y-%m-%dT%H:%M:%SZ", time.gmtime(t))
-
-def hashname(whatever):
-  return hashlib.sha1(unicode(whatever)).hexdigest()
-
-def ticket_text(ticket):
-  d = dict(ticket, createdtime = isotime(ticket["createdtime"]), modifiedtime = isotime(ticket["modifiedtime"]))
-  return u"{description}\n\n" \
-         u"_Trac ticket #{id} component {component} priority {priority}, owner {owner}," \
-         u" created by {reporter} on {createdtime}, last modified {modifiedtime}_\n".format(**d)
-
-def comment_text(comment):
-  d = dict(comment, createdtime = isotime(comment["createdtime"]))
-  return u"{newvalue}\n\n_Trac comment by {author} on {createdtime}_\n".format(**d)
-
-def attachment_text(attachment):
-  h1  = hashname(attachment["id"])
-  h2  = hashname(attachment["filename"])
-  fn2 = os.path.splitext(attachment["filename"])[1]
-  fn  = os.path.join(gist_url, h1[:3], h1, h2 + fn2)
-  url = "{}/raw/{}/ticket.{}.{}{}".format(gist_url.rstrip("/"), gist_commit, h1, h2, fn2)
-  d = dict(attachment, createdtime = isotime(comment["createdtime"]), url = url)
-  return u"[{filename}]({url}) {description}\n_Trac attachment by {author} on {createdtime}_\n".format(**d)
-
-def comment_merge(comments, attachments):
-  result = []
-  while comments and attachments:
-    result.append(comments.pop(0) if comments[0]["created_at"] <= attachments[0]["created_at"] else attachments.pop(0))
-  return result + comments + attachments
-
-parser = argparse.ArgumentParser(formatter_class = argparse.ArgumentDefaultsHelpFormatter)
-parser.add_argument("-c", "--config", type = argparse.FileType(),
-                    default = "generate-json.yaml", 
-                    help = "YAML config mappings")
-args = parser.parse_args()
-
-cfg = yaml.safe_load(args.config)
-assignee_map   = cfg["assignees"]
-type_map       = cfg["type_labels"]
-resolution_map = cfg["resolution_labels"]
-
-gist_url = cfg.get("attachment_gist_url")
-if gist_url is not None:
-  gist_commit = subprocess.check_output(("git", "ls-remote", gist_url, "HEAD")).split()[0]
-
-db = sqlite3.connect(cfg["database"])
-db.row_factory    = sqlite3.Row
-ticket_cursor     = db.cursor()
-comment_cursor    = db.cursor()
-attachment_cursor = db.cursor()
-
-if not os.path.isdir(cfg["ticket_directory"]):
-  os.makedirs(cfg["ticket_directory"])
-
-for ticket in ticket_cursor.execute(ticket_query):
-  comments = comment_merge([dict(created_at = isotime(comment["createdtime"]), body = comment_text(comment))
-                            for comment in comment_cursor.execute(comment_query, (ticket["id"],))],
-                           [] if gist_url is None else
-                           [dict(created_at = isotime(attachment["createdtime"]), body = attachment_text(attachment))
-                            for attachment in attachment_cursor.execute(attachment_query, (ticket["id"],))])
-  issue = dict(
-    title = ticket["summary"],
-    body  = ticket_text(ticket),
-    created_at = isotime(ticket["createdtime"]),
-    updated_at = isotime(ticket["modifiedtime"]))
-  if ticket["status"] == "closed":
-    issue["closed"] = True
-    issue["closed_at"] = isotime(ticket["modifiedtime"])
-    comments.append(dict(created_at = isotime(ticket["modifiedtime"]),
-                         body = "_Closed with resolution {resolution}_\n".format(**ticket)))
-  if ticket["owner"] in assignee_map:
-    issue["assignee"] = assignee_map[ticket["owner"]]
-  labels = [type_map.get(ticket["type"]), resolution_map.get(ticket["resolution"])]
-  while None in labels:
-    del labels[labels.index(None)]
-  if labels:
-    issue["labels"] = labels
-  issue = dict(issue = issue)
-  if comments:
-    issue["comments"] = comments
-  with open(os.path.join(cfg["ticket_directory"], "ticket_{:03d}.json".format(ticket["id"])), "wb") as f:
-    json.dump(issue, f, indent = 4, sort_keys = True, separators=(",", ": "))
diff --git a/references/pelicanconf.py b/references/pelicanconf.py
deleted file mode 100644
index a28721d..0000000
--- a/references/pelicanconf.py
+++ /dev/null
@@ -1,42 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*- #
-from __future__ import unicode_literals
-
-AUTHOR = u'Rob Austein'
-SITENAME = u'Your Bug Report Will Be Graded'
-
-# Apparently this is much longer than theme designer expected.  Skip it for now.
-SITESUBTITLE = u'"I\'m not proud of being a congenital pain in the ass.  But I will take money for it."'
-
-PATH = 'content'
-TIMEZONE = 'UTC'
-DEFAULT_LANG = u'English'
-
-# Hack article URLs to match what Blogofile did, to avoid breaking links.
-
-ARTICLE_URL = '{date:%Y}/{date:%m}/{date:%d}/{slug}/'
-ARTICLE_SAVE_AS = '{date:%Y}/{date:%m}/{date:%d}/{slug}/index.html'
-
-# Feed generation is usually not desired when developing
-SITEURL = ''
-RELATIVE_URLS = True
-FEED_ALL_ATOM = None
-CATEGORY_FEED_ATOM = None
-TRANSLATION_FEED_ATOM = None
-AUTHOR_FEED_ATOM = None
-AUTHOR_FEED_RSS = None
-
-# Blogroll
-LINKS = (('Pelican', 'http://getpelican.com/'),
-         ('Python.org', 'http://python.org/'),
-         ('Jinja2', 'http://jinja.pocoo.org/'))
-LINKS_WIDGET_NAME = "Links"
-
-# Social widget.  Can't get rid of this with default theme, only change its name.
-# Fiddle with themes later
-SOCIAL = ()
-SOCIAL_WIDGET_NAME = "Subscribe"
-
-DEFAULT_PAGINATION = 10
-
-THEME = "/home/blog/pelican-themes/sundown"
diff --git a/references/publishconf.py b/references/publishconf.py
deleted file mode 100644
index f0fb21d..0000000
--- a/references/publishconf.py
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/usr/local/bin/python2.7
-# -*- coding: utf-8 -*- #
-from __future__ import unicode_literals
-
-# This file is only used if you use `make publish` or
-# explicitly specify it as your config file.
-
-import os
-import sys
-sys.path.append(os.curdir)
-from pelicanconf import *
-
-SITEURL = 'https://www.hactrn.net/blog'
-RELATIVE_URLS = False
-
-FEED_ALL_ATOM = 'feeds/all.atom.xml'
-CATEGORY_FEED_ATOM = 'feeds/{slug}.atom.xml'
-
-DELETE_OUTPUT_DIRECTORY = True
diff --git a/references/rpki-wiki-to-markdown.py b/references/rpki-wiki-to-markdown.py
deleted file mode 100644
index dff87e6..0000000
--- a/references/rpki-wiki-to-markdown.py
+++ /dev/null
@@ -1,341 +0,0 @@
-# Copyright (C) 2016  Parsons Government Services ("PARSONS")
-# Portions copyright (C) 2014  Dragon Research Labs ("DRL")
-# Portions copyright (C) 2012  Internet Systems Consortium ("ISC")
-#
-# Permission to use, copy, modify, and distribute this software for any
-# purpose with or without fee is hereby granted, provided that the above
-# copyright notices and this permission notice appear in all copies.
-#
-# THE SOFTWARE IS PROVIDED "AS IS" AND PARSONS, DRL, AND ISC DISCLAIM
-# ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
-# WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL
-# PARSONS, DRL, OR ISC BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
-# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
-# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
-# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
-# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-"""
-Trac Wiki -> Markdown converter, hacked from old Trac Wiki -> PDF/flat
-text converter.
-
-Pull HTML pages from a Trac Wiki, feed the useful bits to 
-html2text to generate Markdown.
-
-Assumes you're using the TracNav plugin for the Wiki pages, and uses
-the same list as the TracNav plugin does to determine the set of pages
-to convert.
-"""
-
-# Dependencies, at least on Ubuntu Xenial:
-#
-#   apt-get install python-lxml python-html2text
-#
-# Be warned that there are many unrelated packages named "html2text",
-# installed under various names on various platforms.  This one
-# happens to be a useful HTML-to-Markdown converter.
-
-# Most of the work of massaging the HTML is done using XSL transforms,
-# because the template-driven style makes that easy.  There's probably
-# some clever way to use lxml's XPath code to do the same thing in a
-# more pythonic way with ElementTrees, but I already had the XSL
-# transforms and there's a point of diminishing returns on this sort of
-# thing.
-
-import sys
-import os
-import argparse
-import lxml.etree
-import urllib
-import urlparse
-import subprocess
-import zipfile
-
-# Main program, up front so it doesn't get lost under all the XSL
-
-def main():
-
-    base = "https://trac.rpki.net"
-
-    parser = argparse.ArgumentParser(description = __doc__, formatter_class = argparse.ArgumentDefaultsHelpFormatter)
-    parser.add_argument("-b", "--base_url",
-                        default = base,
-                        help = "base URL for documentation web site")
-    parser.add_argument("-t", "--toc",
-                        default = base + "/wiki/doc/RPKI/TOC",
-                        help = "table of contents URL")
-    parser.add_argument("-d", "--directory",
-                        default = ".",
-                        help = "output directory")
-    parser.add_argument("-p", "--prefix",
-                        default = "/wiki/doc",
-                        help = "page name prefix on wiki")
-    args = parser.parse_args()
-
-    urls = str(xsl_get_toc(lxml.etree.parse(urllib.urlopen(args.toc)).getroot(),
-                           basename = repr(args.base_url))).splitlines()
-
-    assert all(urlparse.urlparse(url).path.startswith(args.prefix) for url in urls)
-
-    for pagenum, url in enumerate(urls):
-        path = urlparse.urlparse(url).path
-        page = xsl_get_page(lxml.etree.parse(urllib.urlopen(url)).getroot(),
-                            basename = repr(args.base_url),
-                            path = repr(path))
-
-        fn_base = os.path.join(args.directory, "{:02d}{}".format(pagenum, path[len(args.prefix):].replace("/", ".")))
-
-        fn = fn_base + ".zip"
-        zip_url = urlparse.urljoin(url, "/zip-attachment{}/".format(path))
-        urllib.urlretrieve(zip_url, fn)
-        with zipfile.ZipFile(fn, "r") as z:
-            if len(z.namelist()) == 0:
-                os.unlink(fn)
-            else:
-                sys.stderr.write("Wrote {}\n".format(fn))
-
-        for imgnum, img in enumerate(page.xpath("//img | //object | //embed")):
-            img_url = img.get("data" if img.tag == "object" else "src")
-            img_url = urlparse.urljoin(url, img_url)
-            fn = "{}.{:02d}{}".format(fn_base, imgnum, os.path.splitext(img_url)[1])
-            urllib.urlretrieve(img_url, fn)
-            sys.stderr.write("Wrote {}\n".format(fn))
-
-        html2markdown = subprocess.Popen(("html2markdown", "--no-skip-internal-links", "--reference-links"),
-                                         stdin = subprocess.PIPE, stdout = subprocess.PIPE)
-        page.write(html2markdown.stdin)
-        html2markdown.stdin.close()
-        lines = html2markdown.stdout.readlines()
-        html2markdown.stdout.close()
-        html2markdown.wait()
-
-        while lines and lines[0].isspace():
-            del lines[0]
-
-        fn = fn_base + ".md"
-        with open(fn, "w") as f:
-            want_blank = False
-            for line in lines:
-                blank = line.isspace()
-                if want_blank and not blank:
-                    f.write("\n")
-                if not blank:
-                    f.write(line)
-                want_blank = blank
-        sys.stderr.write("Wrote {}\n".format(fn))
-
-        fn = fn[:-3] + ".wiki"
-        urllib.urlretrieve(url + "?format=txt", fn)
-        sys.stderr.write("Wrote {}\n".format(fn))
-
-
-# XSL transform to extract list of Wiki page URLs from the TOC Wiki page
-
-xsl_get_toc = lxml.etree.XSLT(lxml.etree.XML('''\
-  <xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                 version="1.0">
-
-    <xsl:output method="text" encoding="us-ascii"/>
-
-    <xsl:param name="basename"/>
-
-    <xsl:template match="/">
-      <xsl:for-each select="//div[@id = 'wikipage']/ul//a">
-        <xsl:value-of select="concat($basename, @href, '&#10;')"/>
-      </xsl:for-each>
-    </xsl:template>
-
-  </xsl:transform>
-'''))
-
-# XSL transform to extract useful content of a Wiki page.
-
-# Django generates weird HTML for ordered lists: it sometimes breaks
-# up a single ordered list into multiple adjacent <ol/> elements,
-# using the @start attribute to try to make the result look like a
-# single ordered list.  This looks OK in Firefox but confuses the
-# bejesus out of both html2markdown and htmldoc.  In some cases this is
-# probably unavoidable, but most of the uses of this I've seen look
-# gratuitous, and are probably the result of code modulararity issues
-# in Django.
-#
-# So we try to clean this up, by merging adjacent <ol/> elements where
-# we can.  The merge incantation is an adaptation of:
-#
-# http://stackoverflow.com/questions/1806123/merging-adjacent-nodes-of-same-type-xslt-1-0
-#
-# There may be a more efficient way to do this, but I don't think
-# we care, and this seems to work.
-#
-# Original author's explanation:
-#
-# The rather convoluted XPath expression for selecting the following
-# sibling aaa nodes which are merged with the current one:
-#
-# following-sibling::aaa[                       # following 'aaa' siblings
-#   not(preceding-sibling::*[                   #   if they are not preceded by
-#     not(self::aaa) and                        #     a non-'aaa' node
-#     not(following-sibling::aaa = current())   #     after the current node
-#   ])
-# ]
-
-xsl_get_page = lxml.etree.XSLT(lxml.etree.XML('''\
-  <xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
-
-    <xsl:output method="xml" encoding="us-ascii" omit-xml-declaration="yes" />
-
-    <xsl:param name="basename"/>
-    <xsl:param name="path"/>
-
-    <xsl:template match="/">
-      <xsl:message><xsl:value-of select="concat('Got path: ', $path)"/></xsl:message>
-      <xsl:variable name="id">
-        <xsl:call-template name="path-to-id">
-          <xsl:with-param name="p" select="$path"/>
-        </xsl:call-template>
-      </xsl:variable>
-      <xsl:message><xsl:value-of select="concat('Got id: ', $id)"/></xsl:message>
-      <xsl:comment>NEW PAGE</xsl:comment>
-      <html>
-        <body>
-          <div id="{$id}">
-            <xsl:apply-templates select="//div[@id = 'wikipage']/*"/>
-          </div>
-        </body>
-      </html>
-    </xsl:template>
-
-    <xsl:template match="//div[contains(@class, 'wiki-toc')]"/>
-
-    <xsl:template match="//span[@class = 'icon' and not(*)]"/>
-
-    <xsl:template match="a[contains(@class, 'wiki') and
-                           starts-with(@href, '/wiki/')]">
-      <xsl:variable name="href">
-        <xsl:call-template name="path-to-id">
-          <xsl:with-param name="p" select="@href"/>
-        </xsl:call-template>
-      </xsl:variable>
-      <a href="#{$href}">
-        <xsl:apply-templates select="@*[name() != 'href']"/>
-        <xsl:apply-templates/>
-      </a>
-    </xsl:template>
-
-    <xsl:template match="a[starts-with(@href, '/attachment/wiki/')]">
-      <a href="{concat($basename, @href)}">
-        <xsl:apply-templates select="@*[name() != 'href']"/>
-        <xsl:apply-templates/>
-      </a>
-    </xsl:template>
-
-    <xsl:template match="img[starts-with(@src, '/raw-attachment/wiki/')]">
-      <img src="{concat($basename, @src)}">
-        <xsl:apply-templates select="@*[name() != 'src']"/>
-        <xsl:apply-templates/>
-      </img>
-    </xsl:template>
-
-    <xsl:template match="object[starts-with(@data, '/raw-attachment/wiki/') or
-                                starts-with(@data, '/graphviz/')]">
-      <object data="{concat($basename, @data)}">
-        <xsl:apply-templates select="@*[name() != 'data']"/>
-        <xsl:apply-templates/>
-      </object>
-    </xsl:template>
-
-    <xsl:template match="embed[starts-with(@src, '/raw-attachment/wiki/') or
-                               starts-with(@src, '/graphviz/')]">
-      <embed src="{concat($basename, @src)}">
-        <xsl:apply-templates select="@*[name() != 'src']"/>
-        <xsl:apply-templates/>
-      </embed>
-    </xsl:template>
-
-    <xsl:template match="text()[contains(., '&#8203;')]">
-      <xsl:call-template name="remove-zero-width-spaces">
-        <xsl:with-param name="s" select="."/>
-      </xsl:call-template>
-    </xsl:template>
-
-    <xsl:template match="@*|node()">
-      <xsl:copy>
-        <xsl:copy-of select="@*"/>
-        <xsl:apply-templates/>
-      </xsl:copy>
-    </xsl:template>
-
-    <xsl:template name="path-to-id">
-      <xsl:param name="p"/>
-      <xsl:text>_</xsl:text>
-      <xsl:call-template name="replace">
-        <xsl:with-param name="s" select="$p"/>
-        <xsl:with-param name="old">/</xsl:with-param>
-        <xsl:with-param name="new">.</xsl:with-param>
-      </xsl:call-template>
-    </xsl:template>
-
-    <xsl:template name="remove-zero-width-spaces">
-      <xsl:param name="s"/>
-      <xsl:call-template name="replace">
-        <xsl:with-param name="s" select="$s"/>
-        <xsl:with-param name="old">&#8203;</xsl:with-param>
-        <xsl:with-param name="new"/>
-      </xsl:call-template>
-    </xsl:template>
-
-    <xsl:template name="replace">
-      <xsl:param name="s"/>
-      <xsl:param name="old"/>
-      <xsl:param name="new"/>
-      <xsl:choose>
-        <xsl:when test="contains($s, $old)">
-          <xsl:call-template name="replace">
-            <xsl:with-param name="s" select="concat(substring-before($s, $old),
-                                                    $new,
-                                                    substring-after($s, $old))"/>
-            <xsl:with-param name="old" select="$old"/>
-            <xsl:with-param name="new" select="$new"/>
-          </xsl:call-template>
-        </xsl:when>
-        <xsl:otherwise>
-          <xsl:value-of select="$s"/>
-        </xsl:otherwise>
-      </xsl:choose>
-    </xsl:template>
-
-    <xsl:template match="ol">
-      <xsl:if test="not(preceding-sibling::*[1]/self::ol)">
-        <xsl:variable name="following"
-                      select="following-sibling::ol[
-                                not(preceding-sibling::*[
-                                  not(self::ol) and
-                                  not(following-sibling::ol = current())
-                                ])
-                              ]"/>
-        <xsl:copy>
-          <xsl:apply-templates select="$following/@*[name() != 'start']"/>
-          <xsl:apply-templates select="@*"/>
-          <xsl:apply-templates select="node()"/>
-          <xsl:apply-templates select="$following/node()"/>
-        </xsl:copy>
-      </xsl:if>
-    </xsl:template>
-
-  </xsl:transform>
-'''))
-
-# All the files we want to parse are HTML, so make HTML the default
-# parser.  In theory the HTML produced by Trac is XHTML thus should
-# parse correctly (in fact, better) as XML, but in practice this seems
-# not to work properly at the moment, while parsing as HTML does.
-# Haven't bothered to figure out why, life is too short.
-#
-# If you're reading this comment because this script stopped working
-# after a Trac upgrade, try commenting out this line to see whether
-# things have changed and Trac's HTML now parses better as XML.
-
-lxml.etree.set_default_parser(lxml.etree.HTMLParser())
-
-# Run the main program.
-main()
diff --git a/references/schema.sql b/references/schema.sql
deleted file mode 100644
index 1515dbb..0000000
--- a/references/schema.sql
+++ /dev/null
@@ -1,177 +0,0 @@
-CREATE TABLE system (
-    name text PRIMARY KEY,
-    value text
-);
-CREATE TABLE permission (
-    username text,
-    action text,
-    UNIQUE (username,action)
-);
-CREATE TABLE auth_cookie (
-    cookie text,
-    name text,
-    ipnr text,
-    time integer,
-    UNIQUE (cookie,ipnr,name)
-);
-CREATE TABLE session (
-    sid text,
-    authenticated integer,
-    last_visit integer,
-    UNIQUE (sid,authenticated)
-);
-CREATE INDEX session_last_visit_idx ON session (last_visit);
-CREATE INDEX session_authenticated_idx ON session (authenticated);
-CREATE TABLE session_attribute (
-    sid text,
-    authenticated integer,
-    name text,
-    value text,
-    UNIQUE (sid,authenticated,name)
-);
-CREATE TABLE cache (
-    id integer PRIMARY KEY,
-    generation integer,
-    key text
-);
-CREATE TABLE attachment (
-    type text,
-    id text,
-    filename text,
-    size integer,
-    time integer,
-    description text,
-    author text,
-    ipnr text,
-    UNIQUE (type,id,filename)
-);
-CREATE TABLE wiki (
-    name text,
-    version integer,
-    time integer,
-    author text,
-    ipnr text,
-    text text,
-    comment text,
-    readonly integer,
-    UNIQUE (name,version)
-);
-CREATE INDEX wiki_time_idx ON wiki (time);
-CREATE TABLE repository (
-    id integer,
-    name text,
-    value text,
-    UNIQUE (id,name)
-);
-CREATE TABLE revision (
-    repos integer,
-    rev text,
-    time integer,
-    author text,
-    message text,
-    UNIQUE (repos,rev)
-);
-CREATE INDEX revision_repos_time_idx ON revision (repos,time);
-CREATE TABLE ticket (
-    id integer PRIMARY KEY,
-    type text,
-    time integer,
-    changetime integer,
-    component text,
-    severity text,
-    priority text,
-    owner text,
-    reporter text,
-    cc text,
-    version text,
-    milestone text,
-    status text,
-    resolution text,
-    summary text,
-    description text,
-    keywords text
-);
-CREATE INDEX ticket_time_idx ON ticket (time);
-CREATE INDEX ticket_status_idx ON ticket (status);
-CREATE TABLE ticket_change (
-    ticket integer,
-    time integer,
-    author text,
-    field text,
-    oldvalue text,
-    newvalue text,
-    UNIQUE (ticket,time,field)
-);
-CREATE INDEX ticket_change_ticket_idx ON ticket_change (ticket);
-CREATE INDEX ticket_change_time_idx ON ticket_change (time);
-CREATE TABLE ticket_custom (
-    ticket integer,
-    name text,
-    value text,
-    UNIQUE (ticket,name)
-);
-CREATE TABLE enum (
-    type text,
-    name text,
-    value text,
-    UNIQUE (type,name)
-);
-CREATE TABLE component (
-    name text PRIMARY KEY,
-    owner text,
-    description text
-);
-CREATE TABLE milestone (
-    name text PRIMARY KEY,
-    due integer,
-    completed integer,
-    description text
-);
-CREATE TABLE version (
-    name text PRIMARY KEY,
-    time integer,
-    description text
-);
-CREATE TABLE report (
-    id integer PRIMARY KEY,
-    author text,
-    title text,
-    query text,
-    description text
-);
-CREATE TABLE notify_subscription (
-    id integer PRIMARY KEY,
-    time integer,
-    changetime integer,
-    class text,
-    sid text,
-    authenticated integer,
-    distributor text,
-    format text,
-    priority integer,
-    adverb text
-);
-CREATE INDEX notify_subscription_sid_authenticated_idx ON notify_subscription (sid,authenticated);
-CREATE INDEX notify_subscription_class_idx ON notify_subscription (class);
-CREATE TABLE notify_watch (
-    id integer PRIMARY KEY,
-    sid text,
-    authenticated integer,
-    class text,
-    realm text,
-    target text
-);
-CREATE INDEX notify_watch_sid_authenticated_class_idx ON notify_watch (sid,authenticated,class);
-CREATE INDEX notify_watch_class_realm_target_idx ON notify_watch (class,realm,target);
-CREATE TABLE node_change (
-    id integer PRIMARY KEY,
-    repos integer,
-    rev text,
-    path text,
-    node_type text,
-    change_type text,
-    base_path text,
-    base_rev text
-);
-CREATE INDEX node_change_repos_rev_path_idx ON node_change (repos,rev,path);
-CREATE INDEX node_change_repos_path_rev_idx ON node_change (repos,path,rev);
diff --git a/references/trac-wiki-to-markdown.rb b/references/trac-wiki-to-markdown.rb
deleted file mode 100644
index f7d41ae..0000000
--- a/references/trac-wiki-to-markdown.rb
+++ /dev/null
@@ -1,51 +0,0 @@
-# Untested code snippet from https://gist.github.com/somebox/619537
-
-class String
-  def trac_to_markdown!
-    gsub!(/\{\{\{([^\n]+?)\}\}\}/, '`\1`')
-    gsub!(/\{\{\{(.+?)\}\}\}/m){|m| m.each_line.map{|x| "\t#{x}".gsub(/[\{\}]{3}/,'')}.join}
-    gsub!(/\=\=\=\=\s(.+?)\s\=\=\=\=/, '### \1')
-    gsub!(/\=\=\=\s(.+?)\s\=\=\=/, '## \1')
-    gsub!(/\=\=\s(.+?)\s\=\=/, '# \1')
-    gsub!(/\=\s(.+?)\s\=[\s\n]*/, '')
-    gsub!(/\[(http[^\s\[\]]+)\s([^\[\]]+)\]/, '[\2](\1)')
-    gsub!(/\!(([A-Z][a-z0-9]+){2,})/, '\1')
-    gsub!(/'''(.+)'''/, '*\1*')
-    gsub!(/''(.+)''/, '_\1_')
-    gsub!(/^\s\*/, '*')
-    gsub!(/^\s\d\./, '1.')
-
-    gsub!(/\{\{\{([^\n]+?)\}\}\}/, '`\1`')
-    gsub!(/'''(.+?)'''/, '**\1**')
-    gsub!(/''(.+?)''/, '*\1*')
-    gsub!(/((^\|\|[^\n\r]+\|\|[ \t]*\r?(\n|$))+)/m) do |m|
-      m = m.each_line.map do |x|
-        x.gsub(/\t/, ' ')
-          .gsub(/(\|\|){2,}/){|k| k.gsub(/\|\|/, '||   ')}
-        .gsub(/ {3,}/, '   ')
-      end.join
-      lines = m.each_line.to_a
-      line1 = lines.shift
-      line2 = line1.dup.gsub(/[^\n\r\|]/, '-')
-      lines.unshift(line1, line2)
-      c = lines.join
-      c = c.each_line.map do |x|
-        x.gsub(/\=\s?(.+?)\s?=/, ' \1 ')
-          .gsub(/\|\|/, '|')
-      end.join
-    end
-    gsub!(/^\{\{\{(.+?)^\}\}\}/m, '```\1```')
-    gsub!(/\=\=\=\=\s(.+?)\s\=\=\=\=/, '### \1')
-    gsub!(/\=\=\=\s(.+?)\s\=\=\=/, '## \1')
-    gsub!(/\=\=\s(.+?)\s\=\=/, '# \1')
-    gsub!(/\=\s(.+?)\s\=[\s\n]*/, '')
-    gsub!(/\[(http[^\s\[\]]+)\s([^\[\]]+)\]/, '[\2](\1)')
-    gsub!(/\!(([A-Z][a-z0-9]+){2,})/, '\1')
-    gsub!(/^\s\*/, '*')
-    gsub!(/^\s\d\./, '1.')
-  end
-end
-
-some_trac = 'my document'
-
-puts some_trac.trac_to_markdown!
diff --git a/references/trac2down.py b/references/trac2down.py
deleted file mode 100644
index c66a201..0000000
--- a/references/trac2down.py
+++ /dev/null
@@ -1,61 +0,0 @@
-#!/usr/bin/env python2
-
-# Untested code from https://gist.githubusercontent.com/sgk/1286682/raw/b744dd2e47a68d60373ad39df87cfe8256f517af/trac2down.py
-
-# vim:set fileencoding=utf-8 sw=2 ai:
-
-import sqlite3
-import datetime
-import re
-
-SQL = '''
-  select
-      name, version, time, author, text
-    from
-      wiki w
-    where
-      version = (select max(version) from wiki where name = w.name)
-'''
-
-conn = sqlite3.connect('../trac.db')
-result = conn.execute(SQL)
-for row in result:
-  name = row[0]
-  version = row[1]
-  time = row[2]
-  author = row[3]
-  text = row[4]
-
-  text = re.sub('\r\n', '\n', text)
-  text = re.sub(r'{{{(.*?)}}}', r'`\1`', text)
-  def indent4(m):
-    return '\n    ' + m.group(1).replace('\n', '\n    ')
-  text = re.sub(r'(?sm){{{\n(.*?)\n}}}', indent4, text)
-  text = re.sub(r'(?m)^====\s+(.*?)\s+====$', r'#### \1', text)
-  text = re.sub(r'(?m)^===\s+(.*?)\s+===$', r'### \1', text)
-  text = re.sub(r'(?m)^==\s+(.*?)\s+==$', r'## \1', text)
-  text = re.sub(r'(?m)^=\s+(.*?)\s+=$', r'# \1', text)
-  text = re.sub(r'^       * ', r'****', text)
-  text = re.sub(r'^     * ', r'***', text)
-  text = re.sub(r'^   * ', r'**', text)
-  text = re.sub(r'^ * ', r'*', text)
-  text = re.sub(r'^ \d+. ', r'1.', text)
-
-  a = []
-  for line in text.split('\n'):
-    if not line.startswith('    '):
-      line = re.sub(r'\[(https?://[^\s\[\]]+)\s([^\[\]]+)\]', r'[\2](\1)', line)
-      line = re.sub(r'\[(wiki:[^\s\[\]]+)\s([^\[\]]+)\]', r'[\2](/\1/)', line)
-      line = re.sub(r'\!(([A-Z][a-z0-9]+){2,})', r'\1', line)
-      line = re.sub(r'\'\'\'(.*?)\'\'\'', r'*\1*', line)
-      line = re.sub(r'\'\'(.*?)\'\'', r'_\1_', line)
-    a.append(line)
-  text = '\n'.join(a)
-
-  fp = file('%s.md' % name, 'w')
-  print >>fp, '<!-- Name: %s -->' % name
-  print >>fp, '<!-- Version: %d -->' % version
-  print >>fp, '<!-- Last-Modified: %s -->' % datetime.datetime.fromtimestamp(time).strftime('%Y/%m/%d %H:%M:%S')
-  print >>fp, '<!-- Author: %s -->' % author
-  fp.write(text.encode('utf-8'))
-  fp.close()
-- 
cgit v1.2.3