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1<?xml version="1.0" encoding="utf-8"?>
2<?xml-stylesheet type='text/xsl' href='rfc2629.xslt' ?>
3
4<?rfc header="Documentation"?>
5<?rfc private="RFC2629 through XSLT"?>
6<?rfc toc="yes"?>
7<!-- <?rfc topblock="no"?>  -->
8<?rfc strict="yes"?>
9<?rfc symrefs="yes"?>
10<?rfc sortrefs="yes"?>
11<?rfc-ext allow-markup-in-artwork="yes" ?>
12<?rfc-ext include-references-in-index="yes" ?>
13
14<rfc xmlns:x="http://purl.org/net/xml2rfc/ext">
15        <front>
16        <title abbrev="RFC2629 through XSLT">Transforming RFC2629-formatted XML through XSLT</title>
17
18        <author initials="J. F." surname="Reschke" fullname="Julian F. Reschke">
19                <organization abbrev="greenbytes">greenbytes GmbH</organization>
20        <address>
21                <postal>
22                <street>Hafenweg 16</street>
23            <city>Muenster</city><region>NW</region><code>48155</code>
24                <country>Germany</country>
25                </postal>
26                  <phone>+49 251 2807760</phone>       
27                  <email>julian.reschke@greenbytes.de</email>   
28                  <uri>http://greenbytes.de/tech/webdav/</uri> 
29                </address>
30        </author>
31     
32    <date month="February" year="2008"/>
33    <keyword>RFC2629</keyword>
34    <keyword>xml2rfc</keyword>
35    <keyword>XSLT</keyword>
36    <keyword>hCard</keyword>
37    <keyword>XSL-FO</keyword>
38    <keyword>PDF</keyword>
39    <keyword>GRDDL</keyword>
40    <keyword>Dublin Core</keyword>
41        </front>
42
43        <middle>
44
45<section title="Introduction">
46<t>
47  This document describes a set of XSLT transformations that can be used to
48  transform RFC2629-compliant XML (see <xref target="RFC2629"/>) to various
49  output formats, such as HTML and PDF. The main topics are 
50  <list style="symbols">
51    <t>compliance to the xml2rfc XML element set (<xref target="supported.elements"/>),</t>
52    <t>support for xml2rfc processing instructions (<xref target="processing.instructions"/>),</t>
53    <t>the names of anchor elements generated in HTML and PDF output (<xref target="anchors"/>),</t>
54    <t>various XSLT engines that can be used (<xref target="xslt.engines"/>),</t>
55    <t>outputting HTML (<xref target="output.html"/>) and XHTML (<xref target="output.xhtml"/>),</t>
56    <t>outputting CHM (Compiled Microsoft Help, <xref target="output.chm"/>),</t>
57    <t>outputting PDF through XSL-FO (<xref target="output.pdf"/>) and</t>
58    <t>various utilities (<xref target="utilities"/>).</t>
59  </list>
60</t>
61</section>
62
63<section title="Supported RFC2629 elements" anchor="supported.elements">
64<t>
65  <spanx style="verb">rfc2629.xslt</spanx> supports both all RFC2629 grammar elements and the extensions
66  implemented in xml2rfc 1.21.
67</t>
68<section title="Extension elements">
69<t>
70  In addition, <spanx style="verb">rfc2629.xslt</spanx> supports a set of extension elements, using elements
71  and attributes in the namespace "http://greenbytes.de/2002/rfcedit". They
72  are used for
73  <list style="symbols">
74    <t>simple issue tracking and change tracking and</t>
75    <t>adding additional metadata to the generated documents (such as HTML LINK
76    elements to related documents, see <xref target="html.link"/>).</t>
77  </list>
78</t>
79<t>
80  Note that these extensions are experimental. Please email the author in case
81  you're interested in using these extensions.
82</t>
83</section>
84</section>
85
86<section title="Processing Instructions" anchor="processing.instructions">
87<t>
88  All PIs can be set as XSLT parameter as well, overriding any value that
89  is found in the source file to be transformed.
90</t>
91<figure>
92<preamble>Using processing instructions:</preamble>
93<artwork type="example">
94&lt;?rfc toc="yes"?>
95&lt;?rfc-ext support-rfc2731="no"?>
96</artwork>
97</figure>
98<figure>
99<preamble>Using XSLT parameters (Saxon):</preamble>
100<artwork type="example">
101java -cp saxon.jar com.icl.saxon.StyleSheet source.xml rfc2629.xslt \
102  xml2rfc-toc=yes xml2rfc-ext-support-rfc2731=no > result.html
103</artwork>
104</figure>
105<figure>
106<preamble>Using XSLT parameters (xsltproc):</preamble>
107<artwork type="example">
108xsltproc --param xml2rfc-toc '"yes"' \
109   --param xml2rfc-ext-support-rfc2731 '"no"' \
110   rfc2629.xslt source.xml > result.html
111</artwork>
112<postamble>(note the required quoting of string parameters)<iref item="xsltproc" subitem="passing parameters"/></postamble>
113</figure>
114
115<section title="Supported xml2rfc-compatible PIs">
116<texttable>
117  <ttcol>PI target</ttcol>
118  <ttcol>PI pseudo-attribute</ttcol>
119  <ttcol>XSLT parameter name</ttcol>
120  <ttcol>default</ttcol>
121  <ttcol>comment</ttcol>
122
123  <c>rfc</c>
124  <c>background<iref item="background PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="background"/></c>
125  <c>xml2rfc-background<iref item="xml2rfc-background parameter"/> <iref item="Parameters" subitem="xml2rfc-background"/></c>
126  <c>(not set)</c>
127  <c/>
128 
129  <c>rfc</c>
130  <c>compact<iref item="compact PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="compact"/></c>
131  <c>xml2rfc-compact<iref item="xml2rfc-editing parameter"/> <iref item="Parameters" subitem="xml2rfc-compact"/></c>
132  <c>"no"</c>
133  <c>only applies to HTML output method when printing</c>
134
135  <c>rfc</c>
136  <c>comments<iref item="comments PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="comments"/></c>
137  <c>xml2rfc-comments<iref item="xml2rfc-comments parameter"/> <iref item="Parameters" subitem="xml2rfc-comments"/></c>
138  <c>(not set)</c>
139  <c/>
140
141  <c>rfc</c>
142  <c>editing<iref item="editing PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="editing"/></c>
143  <c>xml2rfc-editing<iref item="xml2rfc-editing parameter"/> <iref item="Parameters" subitem="xml2rfc-editing"/></c>
144  <c>"no"</c>
145  <c/>
146 
147  <c>rfc</c>
148  <c>footer<iref item="footer PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="footer"/></c>
149  <c>xml2rfc-footer<iref item="xml2rfc-footer parameter"/> <iref item="Parameters" subitem="xml2rfc-footer"/></c>
150  <c>(not set)</c>
151  <c/>
152 
153  <c>rfc</c>
154  <c>header<iref item="header PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="header"/></c>
155  <c>xml2rfc-header<iref item="xml2rfc-header parameter"/> <iref item="Parameters" subitem="xml2rfc-header"/></c>
156  <c>(not set)</c>
157  <c/>
158
159  <c>rfc</c>
160  <c>inline<iref item="inline PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="inline"/></c>
161  <c>xml2rfc-inline<iref item="xml2rfc-inline parameter"/> <iref item="Parameters" subitem="xml2rfc-inline"/></c>
162  <c>(not set)</c>
163  <c/>
164
165  <c>rfc</c>
166  <c>iprnotified<iref item="iprnotified PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="iprnotified"/></c>
167  <c>xml2rfc-iprnotified<iref item="xml2rfc-iprnotified parameter"/> <iref item="Parameters" subitem="xml2rfc-iprnotified"/></c>
168  <c>"no"</c>
169  <c/>
170
171  <c>rfc</c>
172  <c>linkmailto<iref item="linkmailto PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="linkmailto"/></c>
173  <c>xml2rfc-linkmailto<iref item="xml2rfc-linkmailto parameter"/> <iref item="Parameters" subitem="xml2rfc-linkmailto"/></c>
174  <c>"yes"</c>
175  <c/>
176 
177  <c>rfc</c>
178  <c>private<iref item="private PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="private"/></c>
179  <c>xml2rfc-private<iref item="xml2rfc-private parameter"/> <iref item="Parameters" subitem="xml2rfc-private"/></c>
180  <c>(not set)</c>
181  <c/>
182 
183  <c>rfc</c>
184  <c>sortrefs<iref item="sortrefs PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="sortrefs"/></c>
185  <c>xml2rfc-sortrefs<iref item="xml2rfc-sortrefs parameter"/> <iref item="Parameters" subitem="xml2rfc-sortrefs"/></c>
186  <c>"no"</c>
187  <c/>
188 
189  <c>rfc</c>
190  <c>symrefs<iref item="symrefs PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="symrefs"/></c>
191  <c>xml2rfc-symrefs<iref item="xml2rfc-symrefs parameter"/> <iref item="Parameters" subitem="xml2rfc-symrefs"/></c>
192  <c>"yes"</c>
193  <c>The default has changed from "no" to "yes" as of June 6, 2007 and xml2rfc 1.33pre4.</c>
194 
195  <c>rfc</c>
196  <c>toc<iref item="toc PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="toc"/></c>
197  <c>xml2rfc-toc<iref item="xml2rfc-toc parameter"/> <iref item="Parameters" subitem="xml2rfc-toc"/></c>
198  <c>"no"</c>
199  <c/>
200 
201  <c>rfc</c>
202  <c>tocdepth<iref item="tocdepth PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="tocdepth"/></c>
203  <c>xml2rfc-tocdepth<iref item="xml2rfc-tocdepth parameter"/> <iref item="Parameters" subitem="xml2rfc-tocdepth"/></c>
204  <c>99</c>
205  <c/>
206
207  <c>rfc</c>
208  <c>topblock<iref item="topblock PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="topblock"/></c>
209  <c>xml2rfc-topblock<iref item="xml2rfc-topblock parameter"/> <iref item="Parameters" subitem="xml2rfc-topblock"/></c>
210  <c>"yes"</c>
211  <c/>
212
213</texttable>
214</section>
215
216<section title="Unsupported xml2rfc-compatible PIs">
217<texttable>
218  <ttcol>PI target</ttcol>
219  <ttcol>PI pseudo-attribute</ttcol>
220  <ttcol>comment</ttcol>
221
222  <c>rfc</c>
223  <c>include<iref item="include PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="include"/></c>
224  <c>incompatible with XML/XSLT processing model</c>
225
226  <c>rfc</c>
227  <c>needLines<iref item="needLines PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="needLines"/></c>
228  <c/>
229
230  <c>rfc</c>
231  <c>slides<iref item="slides PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="slides"/></c>
232  <c/>
233
234  <c>rfc</c>
235  <c>strict<iref item="strict PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="strict"/></c>
236  <c/>
237
238  <c>rfc</c>
239  <c>subcompact<iref item="subcompact PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="subcompact"/></c>
240  <c/>
241
242  <c>rfc</c>
243  <c>tocindent<iref item="tocindent PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="tocindent"/></c>
244  <c>(defaults to "yes")</c>
245
246 <c>rfc</c>
247  <c>tocompact<iref item="tocompact PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="tocompact"/></c>
248  <c/>
249
250</texttable>
251</section>
252
253<section title="Extension PIs">
254<texttable>
255  <ttcol>PI target</ttcol>
256  <ttcol>PI pseudo-attribute</ttcol>
257  <ttcol>XSLT parameter name</ttcol>
258  <ttcol>default</ttcol>
259  <ttcol>description</ttcol>
260
261  <c>rfc-ext</c>
262  <c>allow-markup-in-artwork<iref item="allow-markup-in-artwork PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="allow-markup-in-artwork"/></c>
263  <c>xml2rfc-allow-markup-in-artwork<iref item="xml2rfc-ext-allow-markup-in-artwork parameter"/> <iref item="Parameters" subitem="xml2rfc-ext-allow-markup-in-artwork"/></c>
264  <c>"no"</c>
265  <c>Enables support for specific elements inside abstract elements (using this extension
266  makes the document incompatible to the RFC2629bis DTD; see description of
267  conversion XSLT in <xref target="clean-for-dtd"/>).</c>
268
269  <c>rfc-ext</c>
270  <c>authors-section<iref item="authors-section PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="authors-section"/></c>
271  <c>xml2rfc-ext-authors-section<iref item="xml2rfc-ext-authors-section parameter"/> <iref item="Parameters" subitem="xml2rfc-ext-authors-section"/></c>
272  <c></c>
273  <c>When "end", place the authors section at the end (just before the
274  copyright statements). This seems to be the preferred order in the
275  newest RFCs.</c>
276
277  <c>rfc-ext</c>
278  <c>include-references-in-index<iref item="include-references-in-index PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="include-references-in-index"/></c>
279  <c>xml2rfc-ext-include-references-in-index<iref item="xml2rfc-ext-include-references-in-index parameter"/> <iref item="Parameters" subitem="xml2rfc-ext-include-references-in-index"/></c>
280  <c></c>
281  <c>When set to "yes", index entries are generated for all references.</c>
282
283  <c>rfc-ext</c>
284  <c>justification<iref item="justification PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="ijustification"/></c>
285  <c>xml2rfc-ext-justification<iref item="xml2rfc-ext-justification parameter"/> <iref item="Parameters" subitem="xml2rfc-ext-justification"/></c>
286  <c>"never"</c>
287  <c>"never": never emit justified text, "always": always emit justified text, "print": only emit justified text for print media.</c>
288
289  <c>rfc-ext</c>
290  <c>parse-xml-in-artwork<iref item="parse-xml-in-artwork PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="parse-xml-in-artwork"/></c>
291  <c>xml2rfc-parse-xml-in-artwork<iref item="xml2rfc-ext-parse-xml-in-artwork parameter"/> <iref item="Parameters" subitem="xml2rfc-ext-parse-xml-in-artwork"/></c>
292  <c>"no"</c>
293  <c>May be used to enable parsing of XML content in figures (MSXML only).</c>
294
295  <c>rfc-ext</c>
296  <c>support-rfc2731<iref item="support-rfc2731 PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="support-rfc2731"/></c>
297  <c>xml2rfc-ext-support-rfc2731<iref item="xml2rfc-ext-support-rfc2731 parameter"/> <iref item="Parameters" subitem="xml2rfc-ext-support-rfc2731"/></c>
298  <c>"yes"</c>
299  <c>Decides whether the HTML transformation should generate META tags according <xref target="rfc2731.properties"/>.</c>
300
301  <c>rfc-ext</c>
302  <c>sec-no-trailing-dots<iref item="sec-no-trailing-dots PI pseudo-attribute"/><iref item="Processing Instruction pseudo attributes" subitem="sec-no-trailing-dots"/></c>
303  <c>xml2rfc-ext-sec-no-trailing-dots<iref item="xml2rfc-ext-sec-no-trailing-dots parameter"/> <iref item="Parameters" subitem="xml2rfc-ext-sec-no-trailing-dots"/></c>
304  <c></c>
305  <c>When set to "yes", add trailing dots to section numbers. This seems to be the preferred format in the
306  newest RFCs.</c>
307
308</texttable>
309</section>
310
311</section>
312
313<section title="Anchors" anchor="anchors">
314<t>
315  The transformation automatically generates anchors that are supposed to
316  be stable and predictable and that can be used to identify specific
317  parts of the document. Anchors are generated both in HTML and XSL-FO
318  content (but the latter will only be used for PDF output when the XSL-FO
319  engine supports producing PDF anchors).
320</t>
321<texttable>
322<preamble>The following anchors get auto-generated:</preamble>
323<ttcol>Anchor name</ttcol><ttcol>Description</ttcol>
324
325  <c>rfc.abstract <iref item="rfc.abstract anchor"/><iref item="Anchors" subitem="rfc.abstract"/></c><c>Abstract</c>
326  <c>rfc.authors <iref item="rfc.authors anchor"/><iref item="Anchors" subitem="rfc.authors"/></c><c>Authors section</c>
327  <c>rfc.copyright <iref item="rfc.copyright anchor"/><iref item="Anchors" subitem="rfc.copyright"/></c><c>Copyright section</c>
328  <c>rfc.copyrightnotice <iref item="rfc.copyrightnotice anchor"/><iref item="Anchors" subitem="rfc.copyrightnotice"/></c><c>Copyright notice</c>
329  <c>rfc.figure.<spanx>n</spanx> <iref item="rfc.figure.n anchor"/><iref item="Anchors" subitem="rfc.figure.n"/></c><c>Figures (titled)</c>
330  <c>rfc.figure.u.<spanx>n</spanx> <iref item="rfc.figure.u.n anchor"/><iref item="Anchors" subitem="rfc.figure.u.n"/></c><c>Figures (untitled)</c>
331  <c>rfc.index <iref item="rfc.index anchor"/><iref item="Anchors" subitem="rfc.index"/></c><c>Index</c>
332  <c>rfc.ipr <iref item="rfc.ipr anchor"/><iref item="Anchors" subitem="rfc.ipr"/></c><c>Intellectual Property</c>
333  <c>rfc.iref.<spanx>n</spanx> <iref item="rfc.iref.n anchor"/><iref item="Anchors" subitem="rfc.iref.n"/></c><c>Internal references</c>
334  <c>rfc.note.<spanx>n</spanx> <iref item="rfc.note.n anchor"/><iref item="Anchors" subitem="rfc.note.n"/></c><c>Notes (from front section)</c>
335  <c>rfc.references <iref item="rfc.references anchor"/><iref item="Anchors" subitem="rfc.references"/></c><c>References</c>
336  <c>rfc.references.<spanx>n</spanx> <iref item="rfc.references.n anchor"/><iref item="Anchors" subitem="rfc.references"/></c><c>Additional references</c>
337  <c>rfc.section.<spanx>n</spanx> <iref item="rfc.section.n anchor"/><iref item="Anchors" subitem="rfc.section.n"/></c><c>Section <spanx>n</spanx></c>
338  <c>rfc.section.<spanx>n</spanx>.p.<spanx>m</spanx> <iref item="rfc.section.n.p.m anchor"/><iref item="Anchors" subitem="rfc.section.n.p.m"/></c><c>Section <spanx>n</spanx>, paragraph <spanx>m</spanx></c>
339  <c>rfc.status <iref item="rfc.status anchor"/><iref item="Anchors" subitem="rfc.status"/></c><c>Status of memo</c>
340  <c>rfc.table.<spanx>n</spanx> <iref item="rfc.figure.n anchor"/><iref item="Anchors" subitem="rfc.figure.n"/></c><c>Tables (titled)</c>
341  <c>rfc.table.u.<spanx>n</spanx> <iref item="rfc.figure.u.n anchor"/><iref item="Anchors" subitem="rfc.figure.u.n"/></c><c>Tables (untitled)</c>
342  <c>rfc.toc <iref item="rfc.toc anchor"/><iref item="Anchors" subitem="rfc.toc"/></c><c>Table of contents</c>
343  <c>rfc.xref.<spanx>name</spanx>.<spanx>n</spanx> <iref item="rfc.xref.name.n anchor"/><iref item="Anchors" subitem="rfc.xref.name.n"/></c><c>References to reference <spanx>n</spanx> to <spanx>name</spanx></c>
344
345</texttable>
346</section>
347
348<section title="Supported XSLT engines" anchor="xslt.engines">
349<t>
350  The transformation requires a non-standard extension function (see <eref target="http://www.exslt.org/exsl/functions/node-set/exsl.node-set.html">
351  exsl:node-set</eref>)
352  which is however widely available. XSLT processors that do not support this
353  extension (or a functional equivalent) currently are not supported.
354</t>
355<section title="Standalone Engines">
356<t>
357  The following XSLT engines are believed to work well:
358  <list style="symbols">
359    <t><iref item="MSXML3"/><iref item="MSXML4"/>MSXML3 and MSXML4 (<eref target="http://msdn.microsoft.com/xml"/>; these processors
360    do not support exsl:node-set(), but have a similar proprietary extension)</t>
361    <t><iref item="Saxon"/>Saxon (<eref target="http://saxon.sourceforge.net/"/>)</t>
362    <t><iref item="Xalan"/>Xalan (<eref target="http://xml.apache.org/xalan-j/"/>)</t>
363    <t><iref item="xsltproc"/>xsltproc (libxslt) (<eref target="http://xmlsoft.org/XSLT/"/>, make sure that you
364    have a current version)</t>
365  </list>
366</t>
367</section>
368
369<section title="In-Browser Engines">
370<t>
371  The following browsers seem to work fine:
372  <list style="symbols">
373    <t><iref item="Internet Explorer 5.5"/>Internet Explorer 5.5 (Windows version, if MSXML3 is installed)</t>
374    <t><iref item="Internet Explorer 6"/>Internet Explorer 6</t>
375    <t><iref item="Internet Explorer 7"/>Internet Explorer 7</t>
376    <t anchor="firefox3"><iref item="Mozilla"/><iref item="Firefox" subitem="3.*"/>Firefox 3.* (currently only test builds available)</t>
377    <t><iref item="Opera"/><iref item="Opera" subitem="9.5"/>Opera 9.5 (currently only test builds available)</t>
378    <t><iref item="Safari"/><iref item="Safari" subitem="3.*"/>Safari 3 (starting with version 3.0.4)</t>
379  </list>
380</t>
381<t>
382  The following browsers are known not to work properly:
383  <list style="symbols">
384    <t anchor="firefox12"><iref item="Mozilla"/><iref item="Firefox" subitem="1.*/2.*"/>Firefox 1.*/2.* (missing extension function - see change request at Mozilla BugZilla
385    <eref target="http://bugzilla.mozilla.org/show_bug.cgi?id=193678">193678</eref>)</t>
386    <t anchor="opera"><iref item="Opera"/>Opera 9.21: execution fails, potentially
387    to a somewhat complex XPath expression (reported to Opera as bug 245725).</t>
388    <t anchor="safari"><iref item="Safari"/>Safari 2.* supports client-side XSLT as of MacOS X 10.4,
389    but misses required extension functions. A problem
390    with stylesheets producing non-ASCII output (such as NBSP characters)
391    has been fixed as of OSX 10.4.4. Both
392    problems have been reported through Apple's bug tracking system, see
393    <eref target="http://drakken.dbc.mtview.ca.us/pipermail/xml2rfc/2005-May/002073.html"/> and
394    <eref target="http://bugs.webkit.org/show_bug.cgi?id=4079"/>.
395    </t>
396  </list>
397</t>
398</section>
399
400</section>
401
402<section title="Transforming to HTML" anchor="output.html">
403<t>
404  Transformation to HTML can be done inside the browser if it supports
405  XSLT. To enable this, add the following processing instruction to
406  the start of the source file:
407</t>
408<iref item="xml-stylesheet PI"/>
409<figure><artwork type="example">
410  &lt;?xml-stylesheet type='text/xsl' href='rfc2629.xslt' ?>
411</artwork></figure>
412<t>
413  (and ensure that <spanx style="verb">rfc2629.xslt</spanx> is present).
414</t>
415
416<section title="HTML compliance">
417<t>
418  The transformation result is supposed to conform to the HTML 4.01 strict
419  DTD <xref target="HTML"/>. This can be checked using the W3C's online
420  validator at <eref target="http://validator.w3.org" /><iref item="HTML compliance"/>.
421</t>
422</section>
423
424<section title="Standard HTML LINK elements" anchor="html.link">
425<t>
426  LINK elements exist since HTML 2.0. They can be used to embed content-independant
427  links inside the document. Unfortunately, only few user agents
428  support this element. Firefox users may want to check the
429  <eref target="https://addons.mozilla.org/firefox/2933/">Link Widgets</eref>
430  extension.
431</t>
432<texttable>
433<preamble>The following LINK elements are produced:</preamble>
434
435  <ttcol>LINK type</ttcol>
436  <ttcol>description</ttcol>
437 
438  <c>alternate<iref item="alternate HTML LINK element"/><iref item="HTML LINK elements" subitem="alternate"/></c><c>for RFCs, a link to the authorative ASCII version on the IETF web site</c>
439  <c>appendic<iref item="appendix HTML LINK element"/><iref item="HTML LINK elements" subitem="appendix"/></c><c>pointer to all top-level appendics</c>
440  <c>author<iref item="author HTML LINK element"/><iref item="HTML LINK elements" subitem="author"/></c><c>pointer to "authors" section</c>
441  <c>chapter<iref item="chapter HTML LINK element"/><iref item="HTML LINK elements" subitem="chapter"/></c><c>pointer to all top-level sections</c>
442  <c>contents<iref item="contents HTML LINK element"/><iref item="HTML LINK elements" subitem="contents"/></c><c>pointer to table of contents</c>
443  <c>copyright<iref item="copyright HTML LINK element"/><iref item="HTML LINK elements" subitem="copyright"/></c><c>pointer to copyright statement</c>
444  <c>index<iref item="index HTML LINK element"/><iref item="HTML LINK elements" subitem="index"/></c><c>pointer to index</c>
445
446</texttable>
447<figure>
448<preamble>
449The figure below shows how Mozilla Firefox 1.0 displays the Site Navigation Bar
450for rfc2396.xml.
451</preamble>
452<artwork src="rfc2629xslt-fig1.png" height="235" width="509" type="image/png">
453(LINK elements displayed in Mozilla Firefox for RFC2396.xml)
454</artwork>
455</figure>
456
457</section>
458
459
460<section title="Standard HTML metadata">
461<texttable>
462<preamble>The following standard HTML META elements are produced:</preamble>
463
464  <ttcol>META name</ttcol>
465  <ttcol>description</ttcol>
466 
467  <c>generator<iref item="generator HTML META element"/><iref item="HTML META elements" subitem="generator"/></c><c>from XSLT engine version and stylesheet version</c>
468  <c>keywords<iref item="keywords HTML META element"/><iref item="HTML META elements" subitem="keywords"/></c><c>from keyword elements in front section</c>
469
470</texttable>
471</section>
472
473
474<section title="Dublin Core (RFC2731) metadata" anchor="rfc2731.properties">
475<t>
476  Unless turned off using the "rfc-ext support-rfc2731" processing
477  instruction, the transformation will generate metadata according to
478  <xref target="RFC2731"/>.
479</t>
480<texttable>
481<preamble>The following DCMI properties are produced:</preamble>
482
483  <ttcol>META name</ttcol>
484  <ttcol>description</ttcol>
485 
486  <c>DC.Creator<iref item="Creator DCMI property"/><iref item="DCMI properties" subitem="Creator"/></c><c>from author information in front section</c>
487  <c>DC.Date.Issued<iref item="Date.Issued DCMI property"/><iref item="DCMI properties" subitem="Date.Issued"/></c><c>from date information in front section</c>
488  <c>DC.Description.Abstract<iref item="Description.Abstract DCMI property"/><iref item="DCMI properties" subitem="Description.Abstract"/></c><c>from abstract</c>
489  <c>DC.Identifier<iref item="Identifier DCMI property"/><iref item="DCMI properties" subitem="Identifier"/></c><c>document URN <xref target="RFC2648" /> from "docName" attribute</c>
490  <c>DC.Relation.Replaces<iref item="Relation.Replaces DCMI property"/><iref item="DCMI properties" subitem="Relation.Replaces"/></c><c>from "obsoletes" attribute</c>
491
492</texttable>
493</section>
494
495<section title="Experimental hCard support" anchor="hcard">
496<t>
497  The generated author information is formatted in <eref target="http://microformats.org/wiki/hcard">hCard</eref>
498  format.
499</t>
500</section>
501
502
503</section>
504
505<section title="Transforming to XHTML" anchor="output.xhtml">
506<t>
507  Transforming to XHTML requires slightly different XSLT output options and
508  is implemented by the derived transformation script <spanx style="verb">rfc2629toXHTML.xslt</spanx>.
509</t>
510<t><list><t>
511  <x:h>Note:</x:h> Microsoft Internet Explorer does <spanx>not</spanx> support XHTML.
512  Therefore it usually makes more sense to generate plain old HTML.
513</t></list></t>
514</section>
515
516<section title="Transforming to CHM (Microsoft Compiled Help)" anchor="output.chm">
517<t>
518  <iref item="CHM format"/>
519  <iref item="Microsoft Help"/>
520  To generate a CHM file using Microsoft's HTML Help Compiler (hhc), three
521  files are required in addition to the HTML file.
522  <list style="numbers">
523    <t>hhc - table of contents file (HTML)</t>
524    <t>hhk - index file (HTML)</t>
525    <t>hhp - project file (plain text)</t>
526  </list> 
527</t>
528<t>
529  The three files are generated with three specific transformations, each
530  requiring the additional XSLT parameter "basename" to specify the filename
531  prefix.
532</t>
533<figure>
534<preamble>Example:</preamble>
535<artwork type="example">
536saxon rfc2616.xml rfc2629toHhp.xslt basename=rfc2616  > rfc2616.hhp
537saxon rfc2616.xml rfc2629toHhc.xslt basename=rfc2616  > rfc2616.hhc
538saxon rfc2616.xml rfc2629toHhk.xslt basename=rfc2616  > rfc2616.hhk
539hhc rfc2616.hhp
540</artwork>
541</figure>
542</section>
543
544<section title="Transforming to PDF via XSL-FO" anchor="output.pdf">
545
546<section title="Via XSL-FO" anchor="output.pdf.fop">
547<t>
548  Transformation to XSL-FO <xref target="XSL-FO"/> format is available through
549  <spanx style="verb">rfc2629toFO.xslt</spanx> (which includes <spanx style="verb">rfc2629.xslt</spanx>, so keep both in the
550  same folder).
551</t>
552<t>
553  Compared to HTML user agents, XSL-FO engines unfortunately either come
554  as open source (for instance, <iref item="Apache FOP"/>Apache FOP) or
555  feature-complete (for instance, <iref item="AntennaHouse XSL Formatter"/>
556  AntennaHouse XSL Formatter), but not both at the same time.
557</t>
558<t>
559  As Apache FOP needs special workarounds (page breaking, table layout), and
560  some popular extensions aren't standardized yet, the translation produces
561  a generic output (hopefully) conforming to <xref target="XSL-FO"/>.
562  Specific backends (<spanx style="verb">xsl11toFop.xslt</spanx>,
563  <spanx style="verb">xsl11toXep.xslt</spanx>, <spanx style="verb">xsl11toAn.xslt</spanx>)
564  then provide post-processing for the individual processors.
565</t>
566<t>
567  <list>
568    <t>
569      <x:h>Note:</x:h>
570      the output is currently targeted at Apache FOP 0.20.5
571      (<eref target="http://xmlgraphics.apache.org/fop/0.20.5/"/>), not the
572      newer versions.
573    </t>
574  </list>
575</t>
576
577<section title="Extension feature matrix">
578<texttable>
579  <ttcol/>
580  <ttcol align="center" width="20%">PDF anchors</ttcol>
581  <ttcol align="center" width="20%">PDF bookmarks</ttcol>
582  <ttcol align="center" width="20%">PDF document information</ttcol>
583  <ttcol align="center" width="20%">Index cleanup</ttcol>
584 
585  <c><eref target="http://www.w3.org/TR/2003/WD-xsl11-20031217/">XSL 1.1 WD</eref></c>
586  <c>no, but can be auto-generated from "id" attributes</c> 
587  <c><eref target="http://www.w3.org/TR/2003/WD-xsl11-20031217/#d0e12873">yes</eref></c>
588  <c>no, but uses XEP output extensions</c>
589  <c><eref target="http://www.w3.org/TR/2003/WD-xsl11-20031217/#d0e12534">yes</eref></c>
590
591  <c><eref target="http://www.antennahouse.com/">Antenna House XSL formatter</eref></c>
592  <c>no</c>
593  <c><eref target="http://www.antennahouse.com/XSL20/axf-extension.htm">yes</eref> (from XSL 1.1 bookmarks)</c>
594  <c><eref target="http://www.antennahouse.com/XSL20/axf-extension.htm">yes</eref> (from XEP document info)</c>
595  <c><eref target="http://www.antennahouse.com/XSL20/axf-extension.htm">yes</eref> (just page duplicate elimination, from XSL 1.1 page index)</c>
596
597  <c><eref target="http://xml.apache.org/fop/">Apache FOP</eref></c>
598  <c><eref target="http://xml.apache.org/fop/extensions.html#named-destinations">yes</eref></c>
599  <c><eref target="http://xml.apache.org/fop/extensions.html#bookmarks">yes</eref> (from XSL 1.1 bookmarks)</c>
600  <c>no</c>
601  <c>no</c>
602
603  <c><eref target="http://xep.xattic.com/">RenderX XEP</eref></c>
604  <c>no</c>
605  <c><eref target="http://xep.xattic.com/xep/spec.html">yes</eref> (from XSL 1.1 bookmarks)</c>
606  <c><eref target="http://xep.xattic.com/xep/spec.html">yes</eref></c>
607  <c><eref target="http://xep.xattic.com/xep/spec.html">yes</eref> (from XSL 1.1 page index)</c>
608
609</texttable>
610</section>
611
612<section title="Example: producing output for Apache FOP">
613<figure>
614<preamble>Example:</preamble>
615<artwork type="example">
616saxon rfc2616.xml rfc2629toFo.xslt > tmp.fo
617saxon tmp.fo xsl11toFop.xslt > rfc2629.fo
618</artwork>
619</figure>
620</section>
621</section>
622
623<section title="Via X(HTML)" anchor="output.pdf.html">
624<t>
625  PDF output can also be produced directly from (X)HTML. One simple approach
626  is to rely on the browser's printing function, and to use a printer driver
627  that produces PDF. Depending on the brower's CSS capabilities, the output
628  will behave properly with respect to table breaks etc.
629</t>
630<t>
631  An alternative is PrinceXML (see <eref target="http://www.princexml.com/"/>),
632  which can produce PDF directly from (X)HTML input, based on the CSS printing
633  information.
634</t>
635<figure>
636  <preamble>
637    For instance, PDF output with text justification turned on can be
638    produced with:
639  </preamble>
640  <artwork type="example">
641saxon input.xml rfc2629toXHTML.xslt xml2rfc-ext-justification=print \
642  > output.xhtml
643prince output.xhtml output.pdf</artwork>
644</figure>
645</section>
646
647</section>
648
649<section title="Generic Extensions" anchor="extensions">
650<t>
651  This section documents extensions implemented in
652  <spanx style="verb">rfc2629.xslt</spanx>, using the extension
653  namespace "http://purl.org/net/xml2rfc/ext".
654</t>
655
656<section title="&lt;anchor-alias> element" anchor="ext.element.anchor-alias">
657  <iref item="Extension Elements" subitem="anchor-alias" primary="true"/>
658  <iref item="anchor-alias Extension Element" primary="true"/>
659  <x:anchor-alias value="anchor-alias"/>
660  <t>
661    Using its "value" attribute, this element allows the definition of an
662    internal link target alias for the enclosing element. This alias can
663    then be used with the &lt;<x:ref>ref</x:ref>> element for intra-document
664    references.
665  </t>
666  <t>
667    Note that the anchor alias is not subject to the naming constraints that
668    apply to anchor elements (which are <eref target="http://www.w3.org/TR/REC-xml/#NT-Name">XML
669    names</eref>).
670  </t>
671</section>
672
673<section title="&lt;bcp14> element" anchor="ext.element.bcp14">
674  <iref item="Extension Elements" subitem="bcp14" primary="true"/>
675  <iref item="bcp14 Extension Element" primary="true"/>
676  <x:anchor-alias value="bcp14"/>
677  <t>
678    This element marks the content as being one of the normative keywords
679    defined in <xref target="RFC2119"/>.
680  </t>
681  <figure>
682    <preamble>
683      The DOCTYPE definition below allows using these keywords using XML
684      entity expansion: such as in "...server &amp;MUST; accept...".
685    </preamble>
686    <artwork type="example">
687&lt;!DOCTYPE rfc [
688 &lt;!ENTITY MAY "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
689   >MAY&lt;/bcp14>">
690 &lt;!ENTITY MUST "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
691   >MUST&lt;/bcp14>">
692 &lt;!ENTITY MUST-NOT "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
693   >MUST NOT&lt;/bcp14>">
694 &lt;!ENTITY OPTIONAL "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
695   >OPTIONAL&lt;/bcp14>">
696 &lt;!ENTITY RECOMMENDED "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
697   >RECOMMENDED&lt;/bcp14>">
698 &lt;!ENTITY REQUIRED "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
699   >REQUIRED&lt;/bcp14>">
700 &lt;!ENTITY SHALL "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
701   >SHALL&lt;/bcp14>">
702 &lt;!ENTITY SHALL-NOT "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
703   >SHALL NOT&lt;/bcp14>">
704 &lt;!ENTITY SHOULD "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
705   >SHOULD&lt;/bcp14>">
706 &lt;!ENTITY SHOULD-NOT "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
707   >SHOULD NOT&lt;/bcp14>">]></artwork>
708  </figure>
709</section>
710
711<section title="&lt;bb> element" anchor="ext.element.bb">
712  <iref item="Extension Elements" subitem="bb" primary="true"/>
713  <iref item="bb Extension Element" primary="true"/>
714  <x:anchor-alias value="bb"/>
715  <t>
716    Marking up a string as &lt;bb> indicates that it represents the bottom
717    line of a box drawing, replacing the "+" and "-" characters accordingly.
718  </t>
719</section>
720
721<section title="&lt;bc> element" anchor="ext.element.bc">
722  <iref item="Extension Elements" subitem="bc" primary="true"/>
723  <iref item="bc Extension Element" primary="true"/>
724  <x:anchor-alias value="bc"/>
725  <t>
726    Marking up a string as &lt;bc> indicates that it represents a center
727    line of a box drawing, replacing the "|" character accordingly.
728  </t>
729</section>
730
731<section title="&lt;blockquote> element" anchor="ext.element.blockquote">
732  <iref item="Extension Elements" subitem="blockquote" primary="true"/>
733  <iref item="blockquote Extension Element" primary="true"/>
734  <x:anchor-alias value="blockquote"/>
735  <t>
736    This element is like the "<eref target="http://www.w3.org/TR/html401/struct/text.html#edef-BLOCKQUOTE">blockquote</eref>" element in <xref target="HTML"/> 
737    (note this is a block-level element!). It should contain one or more
738    &lt;t> child elements.
739  </t>
740</section>
741
742<section title="&lt;bt> element" anchor="ext.element.bt">
743  <iref item="Extension Elements" subitem="bt" primary="true"/>
744  <iref item="bt Extension Element" primary="true"/>
745  <x:anchor-alias value="bt"/>
746  <t>
747    Marking up a string as &lt;bt> indicates that it represents the top
748    line of a box drawing, replacing the "+" and "-" characters accordingly.
749  </t>
750</section>
751
752<section title="&lt;dfn> element" anchor="ext.element.dfn">
753  <iref item="Extension Elements" subitem="dfn" primary="true"/>
754  <iref item="dfn Extension Element" primary="true"/>
755  <x:anchor-alias value="dfn"/>
756  <t>
757    This element is like the "<eref target="http://www.w3.org/TR/html401/struct/text.html#edef-DFN">dfn</eref>" element in <xref target="HTML"/>.
758  </t>
759</section>
760
761<section title="&lt;h> element" anchor="ext.element.h">
762  <iref item="Extension Elements" subitem="h" primary="true"/>
763  <iref item="h Extension Element" primary="true"/>
764  <x:anchor-alias value="h"/>
765  <t>
766    This element is like the "<eref target="http://www.w3.org/TR/2006/WD-xhtml2-20060726/mod-structural.html#edef_structural_h">h</eref>" element in <xref target="XHTML2"/>.
767  </t>
768</section>
769
770<section title="&lt;length-of> element" anchor="ext.element.length-of">
771  <iref item="Extension Elements" subitem="length-of" primary="true"/>
772  <iref item="length-of Extension Element" primary="true"/>
773  <x:anchor-alias value="length-of"/>
774  <t>
775    This element can be used to insert the length of another formatted
776    section (in decimal).
777  </t>
778  <figure>
779    <preamble>Example: computing the Content-Length header value</preamble>
780    <artwork type="example">
781&lt;artwork>
782...
783Content-Length: &lt;x:length-of target="req"/>
784 
785&lt;x:span anchor="req">123456789
786&lt;x:span>&lt;artwork/>
787</artwork>
788  </figure>
789  <t>
790    The lenght computation counts line ends as two characters (CRLF).
791  </t>
792  <t>
793    Note that indentation characters in artwork <spanx>will</spanx> be
794    counted. The "indented" attribute allows to specify the amount of
795    indentation to be substracted from the computed length.
796  </t>
797</section>
798
799<section title="&lt;link> element" anchor="ext.element.link">
800  <iref item="Extension Elements" subitem="link" primary="true"/>
801  <iref item="link Extension Element" primary="true"/>
802  <x:anchor-alias value="link"/>
803  <t>
804    This element can be added as a top-level child element below
805    &lt;rfc> to indicate additional link information. It's currently
806    used only when generating HTML output, in which case an HTML
807    <eref target="http://www.w3.org/TR/html4/struct/links.html#edef-LINK">&lt;link></eref> element with identical attributes gets generated.
808  </t>
809  <figure>
810    <preamble>Example: generating HTML link element</preamble>
811    <artwork type="example">
812        &lt;x:link xmlns="http://purl.org/net/xml2rfc/ext"
813            rel="Bookmark"
814            title="IETF WEBDAV Working Group"
815            href="http://ftp.ics.uci.edu/pub/ietf/webdav/"/></artwork>
816  </figure>
817</section>
818
819<section title="&lt;lt> element" anchor="ext.element.lt">
820  <iref item="Extension Elements" subitem="lt" primary="true"/>
821  <iref item="lt Extension Element" primary="true"/>
822  <x:anchor-alias value="lt"/>
823  <t>
824    Used for grouping multiple &lt;t&gt; elements into a single list item.
825  </t>
826</section>
827
828<section title="&lt;q> element" anchor="ext.element.q">
829  <iref item="Extension Elements" subitem="q" primary="true"/>
830  <iref item="q Extension Element" primary="true"/>
831  <x:anchor-alias value="q"/>
832  <t>
833    This element is like the "<eref target="http://www.w3.org/TR/html401/struct/text.html#edef-Q">q</eref>" element in <xref target="HTML"/>.
834  </t>
835</section>
836
837<section title="&lt;ref> element" anchor="ext.element.ref">
838  <iref item="Extension Elements" subitem="ref" primary="true"/>
839  <iref item="ref Extension Element" primary="true"/>
840  <x:anchor-alias value="ref"/>
841  <t>
842    This element is a simplified variant of the &lt;xref> element, in that
843    no "target" attribute needs to be specified, instead the text contents
844    acts as identifier.  That in itself wouldn't be terribly useful,
845    but together with the &lt;<x:ref>anchor-alias</x:ref>>, it allows
846    referring to other parts of the document with minimal additional markup.
847  </t>
848  <t>
849    For instance, given an alias definition such as
850  </t>
851  <figure>
852    <artwork type="example">
853      &lt;section title="Test" anchor="test">
854        &lt;x:anchor-alias value="alias1"/>
855        &lt;x:anchor-alias value="alias 2"/>
856        ...
857      &lt;/section></artwork>
858  </figure>
859  <t>
860    the following simple references
861  </t>
862  <figure>
863    <artwork type="example">
864      &lt;x:ref>test&lt;/x:ref>
865      &lt;x:ref>alias1&lt;/x:ref>
866      &lt;x:ref>alias 2&lt;/x:ref></artwork>
867  </figure>
868  <t>
869    are equivalent to...:
870  </t>
871  <figure>
872    <artwork type="example">
873      &lt;xref target="test">test&lt;/xref>
874      &lt;xref target="test">alias1&lt;/xref>
875      &lt;xref target="test">alias 2&lt;/xref></artwork>
876  </figure>
877</section>
878
879<section title="&lt;source> element" anchor="ext.element.source">
880  <iref item="Extension Elements" subitem="source" primary="true"/>
881  <iref item="source Extension Element" primary="true"/>
882  <x:anchor-alias value="source"/>
883  <t>
884    Can be used to enhance a &lt;reference> with information about the
885    location for the XML source. This can be used by the &lt;xref>
886    processing code to automatically extract the target section number.
887  </t>
888  <figure>
889    <preamble>
890      For example:
891    </preamble>
892    <artwork type="example">
893      ...
894      &lt;xref target="RFC2616" x:fmt="of" x:rel="#PUT" />
895      ...
896   
897      &lt;reference target="RFC2616"/>
898        ...
899        &lt;x:source href="rfc2616.xml"/>
900        ...
901    </artwork>
902  </figure>
903</section>
904
905<section title="Extensions to Xml2rfc &lt;iref&gt; element" anchor="ext-rfc2629.iref">
906<t>
907  The extension attribute below is allowed on the standard &lt;iref&gt; element:
908  <list style="symbols">
909    <t>x:for-anchor specifies that the &lt;iref&gt; will also be automatically
910    inserted whenever the specified anchor is cross-referenced -- this may
911    save entering lots of &lt;iref&gt; instances. As a special case, a value of
912    "" (empty string) refers to the anchor attribute of the closest ancestor.</t>
913  </list>
914</t>
915</section>
916
917<section title="Extensions to Xml2rfc &lt;list&gt; element" anchor="ext-rfc2629.list">
918<t>
919  The extension attribute below is allowed on the standard &lt;list&gt; element:
920  <list style="symbols">
921    <t>x:indent specifies the amount of indentation for list items in hanging
922    lists. This can be useful when the output format, such as XSL-FO, does not
923    support automatical formatting. The value takes an XSL-FO width, such as "5em".
924    The default is <spanx>length of longest label in characters</spanx> times
925    <spanx>0.8em</spanx>.</t>
926  </list>
927</t>
928<t>
929  Also, the &lt;list&gt; element can take &lt;x:<x:ref>lt</x:ref>&gt; child elements instead of
930  &lt;t&gt;, allowing to insert multiple paragraphs into a single list item.
931</t>
932</section>
933
934<section title="Extensions to Xml2rfc &lt;section&gt; element" anchor="ext-rfc2629.section">
935<t>
936  The extension attribute below is allowed on the standard &lt;list&gt; element:
937  <list style="symbols">
938    <t>x:fixed-section-number can be used to specify a fixed section number.
939    This can be useful when formatting historic documents that used a different
940    numbering style.</t>
941  </list>
942</t>
943</section>
944
945<section title="Extensions to Xml2rfc &lt;xref&gt; element" anchor="ext-rfc2629.xref">
946<t>
947  Three extension attributes are allowed on the standard &lt;xref&gt; element:
948  <list style="numbers">
949    <t>x:sec can be specified to point to a specific section of the referenced document,</t>
950    <t>x:rel may specify a relative reference to use when linking into the referenced document (if linking by section number is not available),</t>
951    <t>x:fmt defines the text format to be used.</t>
952  </list>
953</t>
954<t>
955  The following formats are defined for the x:fmt attribute:
956  <list style="hanging">
957    <t hangText=", (Comma)">
958      [<spanx>reference</spanx>], Section <spanx>sec</spanx>
959    </t>
960    <t hangText="()">
961      [<spanx>reference</spanx>] (Section <spanx>sec</spanx>)
962    </t>
963    <t hangText="anchor">
964      Like the default format, but without brackets.
965    </t>
966    <t hangText="of">
967      Section <spanx>sec</spanx> of [<spanx>reference</spanx>]
968    </t>
969    <t hangText="number">
970      <spanx>sec</spanx>
971    </t>
972    <t hangText="none">
973      No output (can be used to have xrefs to references without
974      having them rendered as such)
975    </t>
976    <t hangText="sec">
977      Section <spanx>sec</spanx>
978    </t>
979  </list>
980</t>
981<t>
982  These extensions are currently only supported for &lt;xref&gt; elements without
983  child nodes.
984</t>
985<t>
986  If the processor knows how to reference the target section, it will generate
987  a link directly to the target section, such as in <xref target="RFC2119" x:fmt="," x:sec="5"/>.
988</t>
989</section>
990
991</section>
992
993<section title="Utilities" anchor="utilities">
994
995<section title="Checking References" anchor="checking-references">
996<t>
997  <spanx style="verb">check-references.xslt</spanx> can be used to check
998  all references to RFC- and ID-series IETF publications and to W3C publications (note
999  this script requires local copies of
1000  <eref target="ftp://ftp.isi.edu/in-notes/rfc-index.xml"/> and
1001  <eref target="http://www.w3.org/2002/01/tr-automation/tr.rdf"/> and
1002  will use the XML status information provided at <eref target="http://tools.ietf.org/"/>).
1003</t>
1004<t>
1005  If the document is supposed to be published on the IETF standards track,
1006  the desired level can be specified using the parameter <spanx style='verb'>intended-level</spanx>
1007  as 'PROPOSED', 'DRAFT' or 'STANDARD'.
1008</t>
1009<figure>
1010<preamble>
1011For instance, as of 2006-08-06, the script produces for <eref target="http://greenbytes.de/tech/webdav/rfc2518.xml"/>:
1012</preamble>
1013<artwork type="example">
1014> saxon rfc2518.xml check-references.xslt
1015
1016Normative References:
1017ISO-11578: not checked
1018ISO-639: not checked
1019ISO-8601: not checked
1020REC-xml-19980210: [FirstEdition] obsoleted by REC-xml-20001006
1021REC-xml-names-19990114: [REC] obsoleted by PER-xml-names-20060614
1022RFC1766: [PROPOSED STANDARD] obsoleted by RFC3066 RFC3282
1023RFC2068: [PROPOSED STANDARD] obsoleted by RFC2616
1024RFC2069: [PROPOSED STANDARD] obsoleted by RFC2617
1025RFC2119: [BEST CURRENT PRACTICE] (-> BCP0014) ok
1026RFC2141: [PROPOSED STANDARD] ok
1027RFC2277: [BEST CURRENT PRACTICE] (-> BCP0018) ok
1028RFC2396: [DRAFT STANDARD] obsoleted by RFC3986
1029RFC2279: [DRAFT STANDARD] obsoleted by RFC3629
1030
1031Informational References:
1032REC-PICS-labels-961031: [REC] ok
1033RFC1807: [INFORMATIONAL] ok
1034RFC2026: [BEST CURRENT PRACTICE] (-> BCP0009) ok
1035RFC2291: [INFORMATIONAL] ok
1036RFC2376: [INFORMATIONAL] obsoleted by RFC3023
1037RFC2413: [INFORMATIONAL] ok
1038USMARC: not checked
1039WF: not checked
1040</artwork></figure>
1041<t>
1042  Recognized formats in the &lt;seriesInfo> element are:
1043  <list style="symbols">
1044    <t>for RFCs, the name attribute must be "RFC", and the value attribute must
1045    be the number of the RFC,</t>
1046    <t>for Internet Drafs, the name attribute must be "ID" or "Internet-Draft", and the value attribute must
1047    be the file name of the draft (including the two-digit running number, but excluding a file extension),</t>
1048    <t>for W3C documents, the name attribute must be "W3C", must start with "W3C&#160;", or
1049    must start with "World Wide Web Consortium&#160;", and the value attribute
1050    must be the "shorthand" name of the specification, such as "REC-xml-19980210".</t>
1051  </list>
1052</t>
1053
1054</section>
1055
1056<section title="Generating Graphs from References">
1057<t>
1058  <spanx style="verb">gen-reference-graph.xslt</spanx> generates a graph
1059  of RFC dependencies, using the same base data as in <spanx style="verb">check-references.xslt</spanx>
1060  (see <xref target="checking-references"/>). Its output is a "dot" file,
1061  to be processed by GraphViz (see <eref target="http://www.graphviz.org/"/>).
1062</t>
1063<figure>
1064<preamble>
1065The picture below shows the RFC dependencies in RFC2629.
1066</preamble>
1067<artwork src="rfc2629xslt-fig2.png" type="image/png">
1068(PNG output obtained from GraphViz)
1069</artwork>
1070</figure>
1071</section>
1072
1073<section title="Producing reference entries for books">
1074<t>
1075  <spanx style="verb">amazon-asin.xslt</spanx> uses the Amazon web services
1076  to generate a &lt;reference> element for a given ASIN (ISBN).
1077</t>
1078<figure>
1079<preamble>For instance:</preamble>
1080<artwork type="example">
1081&lt;?xml version="1.0" encoding="utf-8"?>
1082&lt;references>
1083 &lt;reference target="urn:isbn:0134516591">
1084   &lt;front>
1085     &lt;title>Simple Book, The: An Introduction to Internet Management,
1086               Revised Second Edition&lt;/title>
1087     &lt;author surname="Rose"
1088                fullname="Marshall T. Rose" initials="M. T. ">
1089       &lt;organization/>
1090     &lt;/author>
1091     &lt;author surname="Marshall"
1092                fullname="Rose T. Marshall" initials="R. T.">
1093       &lt;organization/>
1094     &lt;/author>
1095     &lt;date year="1996" month="March"/>
1096   &lt;/front>
1097   &lt;seriesInfo name="Prentice Hall" value=""/>
1098 &lt;/reference>
1099&lt;/references>
1100</artwork></figure>
1101<t>
1102  Note that the resulting XML usually requires checking, in this case Amazon's
1103  database is playing tricks with Marshall's name...
1104</t>
1105</section>
1106
1107<section title="Down-converting to RFC2629bis DTD" anchor="clean-for-dtd">
1108<t>
1109  <spanx style="verb">clean-for-DTD.xslt</spanx> can be used to down-convert
1110  some extensions to a format that is supported by the base xml2rfc
1111  distribution.  Note that these extensions are experimental (feedback
1112  appreciated).
1113</t>
1114<t>
1115  The following mappings are done:
1116  <list style="symbols">
1117    <t>
1118      &lt;iref> elements inside &lt;artwork> elements are moved in front
1119      of the enclosing &lt;figure> element.
1120    </t>
1121    <t>
1122      &lt;xref> elements inside &lt;artwork> are expanded just like in
1123      regular text (that is, the markup is stripped, but the element
1124      is replaced by the applicable replacement text).
1125    </t>
1126    <t>
1127      &lt;x:<x:ref>anchor-alias</x:ref>> elements get stripped.
1128    </t>
1129    <t>
1130      &lt;x:<x:ref>bcp14</x:ref>> elements get stripped.
1131    </t>
1132    <t>
1133      &lt;x:<x:ref>bb</x:ref>>, &lt;x:<x:ref>bc</x:ref>> and &lt;x:<x:ref>bt</x:ref>> elements get stripped.
1134    </t>
1135    <t>
1136      &lt;x:<x:ref>blockquote</x:ref>> elements get converted to
1137      indented text (through a &lt;list> element).
1138    </t>
1139    <t>
1140      &lt;x:<x:ref>dfn</x:ref>> elements get stripped.
1141    </t>
1142    <t>
1143      &lt;x:<x:ref>h</x:ref>> elements get stripped.
1144    </t>
1145    <t>
1146      &lt;x:<x:ref>link</x:ref>> elements get stripped.
1147    </t>
1148    <t>
1149      &lt;x:<x:ref>q</x:ref>> elements get stripped, with apostrophes
1150      added around the text.
1151    </t>
1152    <t>
1153      &lt;x:<x:ref>ref</x:ref>> elements get replaced by &lt;xref>
1154      elements, targetting either the anchor or another anchor with
1155      matching &lt;x:<x:ref>anchor-alias</x:ref>> child element.
1156    </t>
1157  </list>
1158</t>
1159</section>
1160
1161<section title="Extracting artwork" anchor="extract-artwork">
1162<t>
1163  With <spanx style="verb">extract-artwork.xslt</spanx>, artwork elements
1164  named through the "name" attribute can be extracted. This can be used
1165  to automatically check their syntax (for instance, when ABNFs appear
1166  within a figure element).
1167</t>
1168<figure><preamble>For instance:</preamble>
1169<artwork type="example">saxon rfc3986.xml extract-artwork.xslt name=uri.abnf
1170</artwork>
1171</figure>
1172<t>
1173  In addition, artwork of a specific type can be extracted, such as with:
1174</t>
1175<figure>
1176<artwork type="example">saxon rfc3986.xml extract-artwork.xslt type=abnf
1177</artwork>
1178</figure>
1179</section>
1180
1181<section title="GRRDL" anchor="grddl">
1182<t>
1183  <spanx style="verb">rfc2629grddl.xslt</spanx> extracts RDF
1184  information. This is experimental work-in-progress. See
1185  <eref target="http://www.w3.org/TR/grddl/"/> for more information.
1186</t>
1187</section>
1188</section>
1189
1190 
1191
1192</middle>
1193
1194<back>
1195<references title="Informative References">
1196
1197<reference anchor="RFC2119">
1198  <front>
1199    <title abbrev="RFC Key Words">Key words for use in RFCs to Indicate Requirement Levels</title>
1200    <author initials="S." surname="Bradner" fullname="Scott Bradner">
1201    <organization>Harvard University</organization>
1202    <address>
1203      <email>sob@harvard.edu</email>
1204    </address></author>
1205    <date month="March" year="1997"/>
1206  </front>
1207  <seriesInfo name="BCP" value="14"/>
1208  <seriesInfo name="RFC" value="2119"/>
1209</reference>
1210
1211<reference anchor="RFC2616">
1212  <front>
1213  <title abbrev="HTTP/1.1">Hypertext Transfer Protocol -- HTTP/1.1</title>
1214  <author initials="R.T." surname="Fielding" fullname="Roy T. Fielding">
1215  <organization>University of California, Irvine, Information and Computer Science</organization>
1216  <address>
1217  <postal>
1218  <street/>
1219  <city>Irvine</city>
1220  <region>CA</region>
1221  <code>92697-3425</code>
1222  <country>US</country></postal>
1223  <phone>+1 949 824 1715</phone>
1224  <email>fielding@ics.uci.edu</email></address></author>
1225  <author initials="J." surname="Gettys" fullname="James Gettys">
1226  <organization>World Wide Web Consortium, MIT Laboratory for Computer Science</organization>
1227  <address>
1228  <postal>
1229  <street>545 Technology Square</street>
1230  <city>Cambridge</city>
1231  <region>MA</region>
1232  <code>02139</code>
1233  <country>US</country></postal>
1234  <phone/>
1235  <facsimile>+1 617 258 8682</facsimile>
1236  <email>jg@w3.org</email></address></author>
1237  <author initials="J.C." surname="Mogul" fullname="Jeffrey C. Mogul">
1238  <organization>Compaq Computer Corporation, Western Research Laboratory</organization>
1239  <address>
1240  <postal>
1241  <street>250 University Avenue</street>
1242  <city>Palo Alto</city>
1243  <region>CA</region>
1244  <code>94301</code>
1245  <country>US</country></postal>
1246  <phone/>
1247  <email>mogul@wrl.dec.com</email></address></author>
1248  <author initials="H.F." surname="Nielsen" fullname="Henrik Frystyk Nielsen">
1249  <organization>World Wide Web Consortium, MIT Laboratory for Computer Science</organization>
1250  <address>
1251  <postal>
1252  <street>545 Technology Square</street>
1253  <city>Cambridge</city>
1254  <region>MA</region>
1255  <code>02139</code>
1256  <country>US</country></postal>
1257  <phone/>
1258  <facsimile>+1 617 258 8682</facsimile>
1259  <email>frystyk@w3.org</email></address></author>
1260  <author initials="L." surname="Masinter" fullname="Larry Masinter">
1261  <organization>Xerox Corporation</organization>
1262  <address>
1263  <postal>
1264  <street>3333 Coyote Hill Road</street>
1265  <city>Palo Alto</city>
1266  <region>CA</region>
1267  <code>94034</code>
1268  <country>US</country></postal>
1269  <phone/>
1270  <email>masinter@parc.xerox.com</email></address></author>
1271  <author initials="P.J." surname="Leach" fullname="Paul J. Leach">
1272  <organization>Microsoft Corporation</organization>
1273  <address>
1274  <postal>
1275  <street>1 Microsoft Way</street>
1276  <city>Redmond</city>
1277  <region>WA</region>
1278  <code>98052</code>
1279  <country>US</country></postal>
1280  <phone/>
1281  <email>paulle@microsoft.com</email></address></author>
1282  <author initials="T." surname="Berners-Lee" fullname="Tim Berners-Lee">
1283  <organization>World Wide Web Consortium, MIT Laboratory for Computer Science</organization>
1284  <address>
1285  <postal>
1286  <street>545 Technology Square</street>
1287  <city>Cambridge</city>
1288  <region>MA</region>
1289  <code>02139</code>
1290  <country>US</country></postal>
1291  <phone>+1 617 258 8682</phone>
1292  <facsimile/>
1293  <email>timbl@w3.org</email></address></author>
1294  <date month="June" year="1999"/>
1295  </front>
1296  <seriesInfo name="RFC" value="2616"/>
1297</reference>
1298
1299<reference anchor='RFC2629'>
1300  <front>
1301    <title>Writing I-Ds and RFCs using XML</title>
1302    <author initials='M.T.' surname='Rose' fullname='Marshall T. Rose'>
1303      <organization>Invisible Worlds, Inc.</organization>
1304      <address>
1305        <postal>
1306          <street>660 York Street</street>
1307          <city>San Francisco</city>
1308          <region>CA</region>
1309          <code>94110</code>
1310          <country>US</country>
1311        </postal>
1312        <phone>+1 415 695 3975</phone>
1313        <email>mrose@not.invisible.net</email>
1314        <uri>http://invisible.net/</uri>
1315      </address>
1316    </author>
1317    <date month='June' year='1999' />
1318  </front>
1319  <seriesInfo name='RFC' value='2629' />
1320</reference>
1321
1322<reference anchor='RFC2648'>
1323  <front>
1324    <title>A URN Namespace for IETF Documents</title>
1325    <author initials='R.' surname='Moats' fullname='Ryan Moats'>
1326      <organization>AT&amp;T</organization>
1327      <address>
1328      <postal>
1329        <street>15621 Drexel Circle</street>
1330        <city>Omaha</city>
1331        <region>NE</region>
1332        <code>68135-2358</code>
1333        <country>US</country>
1334      </postal>
1335      <email>jayhawk@att.com</email></address>
1336    </author>
1337    <date month='August' year='1999' />
1338  </front>
1339  <seriesInfo name='RFC' value='2648' />
1340</reference>
1341
1342<reference anchor='RFC2731'>
1343  <front>
1344    <title>Encoding Dublin Core Metadata in HTML</title>
1345    <author initials='J.A.' surname='Kunze' fullname='John A. Kunze'>
1346      <organization>University of California, San Francisco,  Center for Knowledge Management</organization>
1347      <address>
1348        <postal>
1349          <street>530 Parnassus Ave</street>
1350          <street>Box 0840</street>
1351          <city>San Francisco</city>
1352          <region>CA</region>
1353          <code>94143-0840</code>
1354          <country>US</country>
1355        </postal>
1356        <facsimile>+1 415 476 4653</facsimile>
1357        <email>jak@ckm.ucsf.edu</email>
1358      </address>
1359    </author>
1360    <date month='December' year='1999' />
1361  </front>
1362  <seriesInfo name='RFC' value='2731' />
1363</reference>
1364
1365<reference anchor="RFC5234">
1366  <front>
1367    <title abbrev="ABNF for Syntax Specifications">Augmented BNF for Syntax Specifications: ABNF</title>
1368    <author initials="D." surname="Crocker" fullname="Dave Crocker" role="editor">
1369      <organization>Brandenburg InternetWorking</organization>
1370      <address>
1371      <postal>
1372      <street>675 Spruce Dr.</street>
1373      <city>Sunnyvale</city>
1374      <region>CA</region>
1375      <code>94086</code>
1376      <country>US</country></postal>
1377      <phone>+1.408.246.8253</phone>
1378      <email>dcrocker@bbiw.net</email></address> 
1379    </author>
1380    <author initials="P." surname="Overell" fullname="Paul Overell">
1381      <organization>THUS plc.</organization>
1382      <address>
1383      <postal>
1384      <street>1/2 Berkeley Square</street>
1385      <street>99 Berkely Street</street>
1386      <city>Glasgow</city>
1387      <code>G3 7HR</code>
1388      <country>UK</country></postal>
1389      <email>paul.overell@thus.net</email></address>
1390    </author>
1391    <date month="January" year="2008"/>
1392  </front>
1393  <seriesInfo name="STD" value="68"/>
1394  <seriesInfo name="RFC" value="5234"/>
1395</reference>
1396
1397<reference anchor="HTML" target="http://www.w3.org/TR/html401/">
1398  <front>
1399    <title>HTML 4.01 Specification</title>
1400    <author initials="D." surname="Raggett" fullname="David Raggett">
1401      <organization>W3C</organization>
1402      <address>
1403        <email>dsr@w3.org</email>
1404      </address>
1405    </author>
1406    <author initials="A." surname="Hors" fullname="Arnaud Le Hors">
1407      <organization>W3C</organization>
1408    </author>
1409    <author initials="I." surname="Jacobs" fullname="Ian Jacobs">
1410      <organization>W3C</organization>
1411    </author>
1412    <date month="December" day="24" year="1999" />
1413  </front>
1414  <seriesInfo name="W3C" value="REC-html401-19991224" />
1415</reference>
1416
1417<reference anchor="XHTML2" target="http://www.w3.org/TR/xhtml2">
1418  <front>
1419    <title>XHTML&#8482; 2.0</title>
1420    <author initials="J." surname="Axelsson" fullname="Jonny Axelsson">
1421      <organization>Opera Software</organization>
1422    </author>
1423    <author initials="M." surname="Birbeck" fullname="Mark Birbeck">
1424      <organization>x-port.net</organization>
1425    </author>
1426    <author initials="M." surname="Dubinko" fullname="Micah Dubinko">
1427      <organization></organization>
1428    </author>
1429    <author initials="B." surname="Epperson" fullname="Beth Epperson">
1430      <organization>Websense</organization>
1431    </author>
1432    <author initials="M." surname="Ishikawa" fullname="Masayasu Ishikawa">
1433      <organization>W3C</organization>
1434    </author>
1435    <author initials="S." surname="McCarron" fullname="Shane McCarron">
1436      <organization>Applied Testing and Technology</organization>
1437    </author>
1438    <author initials="A." surname="Navarro" fullname="Ann Navarro">
1439      <organization>WebGeek, Inc.</organization>
1440    </author>
1441    <author initials="S." surname="Pemberton" fullname="Steven Pemberton">
1442      <organization>CWI</organization>
1443    </author>
1444    <date month="July" day="26" year="2006" />
1445  </front>
1446  <seriesInfo name="W3C" value="WD-xhtml2-20060726" />
1447</reference>
1448
1449<reference anchor="XSL-FO" target="http://www.w3.org/TR/2006/REC-xsl11-20061205/">
1450  <front>
1451    <title>Extensible Stylesheet Language (XSL) Version 1.1</title>
1452    <author initials="A." surname="Berglund" fullname="Anders Berglund">
1453      <organization>IBM</organization>
1454      <address>
1455        <email>alrb@us.ibm.com</email>
1456      </address>
1457    </author>
1458    <date month="Dec" day="5" year="2006" />
1459  </front>
1460  <seriesInfo name="W3C" value="REC-xsl11-20061205" />
1461</reference>
1462
1463<reference anchor="RNC" target="http://www.oasis-open.org/committees/relax-ng/compact-20021121.html">
1464  <front>
1465    <title>RELAX NG Compact Syntax</title>
1466    <author initials="J." surname="Clark" fullname="James Clark">
1467      <organization/>
1468      <address>
1469        <email>jjc@jclark.com</email>
1470      </address>
1471    </author>
1472    <date month="Nov" day="21" year="2002" />
1473  </front>
1474  <seriesInfo name="OASIS" value=""/>
1475</reference>
1476
1477</references>
1478
1479  <section title="RELAX NG Compact Schema" anchor="grammar">
1480  <iref item="Grammar" primary="true"/>
1481  <iref item="Schema" primary="true"/>
1482  <iref item="RELAX NG Compact Schema" primary="true"/>
1483  <t>
1484    The RelaxNG schema (<xref target="RNC"/>) below can be used to validate
1485    input documents (for instance, with <eref target="http://www.thaiopensource.com/relaxng/jing.html">Jing</eref>).
1486  </t>
1487  <t>
1488    <spanx>Note that this is work in progress, and doesn't yet cover all
1489    extensions completely.</spanx>
1490  </t>
1491  <figure>
1492    <artwork type="application/relax-ng-compact-syntax" name="rfc2629-ext.rnc" x:extraction-note="# Automatically extracted from rfc2629xslt.xml. DO NOT EDIT!&#10;">
1493<spanx># WORK IN PROGRESS! PLEASE REPORT PROBLEMS TO THE AUTHOR.</spanx>
1494
1495<spanx># Define our extension namespace</spanx>
1496namespace x = "http://purl.org/net/xml2rfc/ext"
1497
1498<spanx># Define GRDDL namespace</spanx>
1499namespace grddl = "http://www.w3.org/2003/g/data-view#"
1500
1501<spanx># Include rfc2629bis RNC grammar</spanx>
1502include "rfc2629.rnc" {
1503 
1504  <spanx># Redefine &lt;artwork> to allow markup</spanx>
1505  artwork =
1506    element artwork {
1507      attlist.artwork,
1508      (TEXT
1509        <spanx style="strong">| eref</spanx> 
1510        <spanx style="strong">| iref</spanx> 
1511        <spanx style="strong">| spanx</spanx> 
1512        <spanx style="strong">| xref</spanx>
1513        <spanx style="strong">| <x:ref>x_bb</x:ref></spanx>
1514        <spanx style="strong">| <x:ref>x_bc</x:ref></spanx>
1515        <spanx style="strong">| <x:ref>x_bt</x:ref></spanx>
1516        <spanx style="strong">| <x:ref>x_length-of</x:ref></spanx>
1517        <spanx style="strong">| <x:ref>x_ref</x:ref></spanx>
1518        <spanx style="strong">| <x:ref>x_span</x:ref></spanx>
1519        <spanx style="strong">| <x:ref>x_x</x:ref></spanx>)*
1520    }
1521
1522  <spanx># Redefine &lt;c> to allow our extension elements</spanx>
1523  c =
1524    element c {
1525      attlist.c,
1526      (TEXT
1527        | xref
1528        | eref
1529        | iref
1530        | cref
1531        | spanx
1532        <spanx style="strong">| <x:ref>x_ref</x:ref></spanx>)*
1533    }
1534
1535  <spanx># Redefine &lt;cref> to allow more child elements</spanx>
1536  cref =
1537    element cref {
1538      attlist.cref,
1539      (TEXT
1540        | eref)*
1541    }
1542
1543  <spanx># Redefine &lt;list> element to allow &lt;x:<x:ref>lt</x:ref>> child elements</spanx>
1544  \list =
1545    element list {
1546      attlist.list,
1547      (t+ <spanx style="strong">| <x:ref>x_lt</x:ref>+</spanx>)
1548    }   
1549   
1550  <spanx># Redefine &lt;preamble> to allow our extension elements</spanx>
1551  preamble =
1552    element preamble {
1553      attlist.preamble,
1554      (TEXT
1555        | xref
1556        | eref
1557        | iref
1558        | cref
1559        | spanx
1560        <spanx style="strong">| <x:ref>x_anchor-alias</x:ref></spanx>)*
1561    }
1562
1563  <spanx># Redefine &lt;postamble> to allow our extension elements</spanx>
1564  postamble =
1565    element postamble {
1566      attlist.postamble,
1567      (TEXT
1568        | xref
1569        | eref
1570        | iref
1571        | cref
1572        | spanx
1573        <spanx style="strong">| <x:ref>x_bcp14</x:ref></spanx>)*
1574    }
1575
1576  <spanx># Redefine &lt;reference> to allow our extension elements</spanx>
1577  reference =
1578    element reference {
1579      attlist.reference,
1580      front,
1581      seriesInfo*,
1582      format*,
1583      annotation*,
1584      <spanx style="strong"><x:ref>x_source</x:ref>?</spanx>
1585    }
1586
1587  <spanx># Redefine &lt;rfc> to allow our extension elements</spanx>
1588  rfc =
1589    element rfc {
1590      attlist.rfc,
1591      <spanx style="strong"><x:ref>x_link</x:ref>*,</spanx>
1592      <spanx style="strong"><x:ref>x_assign-section-number</x:ref>*,</spanx>
1593      front,
1594      middle,
1595      back?
1596    }
1597
1598  <spanx># Redefine &lt;section> to allow our extension elements</spanx>
1599  section =
1600    element section {
1601      attlist.section,
1602      (t
1603       | figure
1604       | texttable
1605       | iref
1606       | section
1607       <spanx style="strong">| <x:ref>x_anchor-alias</x:ref></spanx>
1608       <spanx style="strong">| <x:ref>x_blockquote</x:ref></spanx>)*
1609    }
1610
1611  <spanx># Redefine &lt;spanx> to allow some markup</spanx>
1612  spanx =
1613    element spanx {
1614      attlist.spanx,
1615      (TEXT
1616        <spanx style="strong">| iref</spanx>
1617        <spanx style="strong">| xref</spanx>
1618        <spanx style="strong">| <x:ref>x_ref</x:ref></spanx>)*
1619    }
1620
1621  <spanx># Redefine &lt;t> to allow our extension elements</spanx>
1622  t =
1623    element t {
1624      attlist.t,
1625      (TEXT
1626       | \list
1627       | figure
1628       | xref
1629       | eref
1630       | iref
1631       | cref
1632       | spanx
1633       | vspace
1634       <spanx style="strong">| <x:ref>x_anchor-alias</x:ref></spanx>
1635       <spanx style="strong">| <x:ref>x_bcp14</x:ref></spanx>
1636       <spanx style="strong">| <x:ref>x_dfn</x:ref></spanx>
1637       <spanx style="strong">| <x:ref>x_h</x:ref></spanx>
1638       <spanx style="strong">| <x:ref>x_q</x:ref></spanx>
1639       <spanx style="strong">| <x:ref>x_ref</x:ref></spanx>)*
1640    }
1641}
1642
1643<spanx># Extend attribute set for &lt;iref> (see <xref target="ext-rfc2629.iref"/>)</spanx>
1644attlist.iref &amp;=
1645  attribute x:for-anchor { ATEXT }?
1646
1647<spanx># Extend attribute set for &lt;list> (see <xref target="ext-rfc2629.list"/>)</spanx>
1648attlist.list &amp;=
1649  attribute x:indent { ATEXT }?
1650
1651<spanx># Extend attribute set for &lt;preamble></spanx>
1652attlist.preamble &amp;=
1653  attribute anchor { xsd:ID }?
1654
1655<spanx># Extend attribute set for &lt;rfc></spanx>
1656attlist.rfc &amp;=
1657  attribute grddl:transformation { ATEXT }?
1658
1659<spanx># Extend attribute set for &lt;section> (see <xref target="ext-rfc2629.section"/>)</spanx>
1660attlist.section &amp;=
1661  attribute x:fixed-section-number { ATEXT }?
1662
1663<spanx># Allow anchor attribute on &lt;spanx></spanx>
1664attlist.spanx &amp;=
1665  attribute anchor { xsd:ID }?
1666
1667<spanx># Extend attribute set for &lt;xref> (see <xref target="ext-rfc2629.xref"/>)</spanx>
1668attlist.xref &amp;=
1669  attribute x:fmt  { "()" | "," | "anchor" | "of" | "number" | "sec" |
1670                     "none" }?,
1671  attribute x:rel  { ATEXT }?,
1672  attribute x:sec  { ATEXT }?
1673
1674<spanx anchor="x_anchor-alias"><iref item="anchor-alias Extension Element"/><iref item="Extension Elements" subitem="anchor-alias"
1675/># Aliasing of anchors (see <xref target="ext.element.anchor-alias"/>)</spanx>
1676<x:ref>x_anchor-alias</x:ref> =
1677  element x:anchor-alias {
1678    attribute value { TEXT },
1679    empty
1680  }
1681
1682<spanx anchor="x_assign-section-number"><iref item="assign-section-number Extension Element"/><iref item="Extension Elements" subitem="assign-section-number"
1683/># Setting section numbers for internally generated sections
1684# (experimental)</spanx>
1685<x:ref>x_assign-section-number</x:ref> =
1686  element x:assign-section-number {
1687    attribute builtin-target { "authors" },
1688    attribute number { TEXT },
1689    empty
1690  }
1691
1692<spanx anchor="x_bb"><iref item="bb Extension Element"/><iref item="Extension Elements" subitem="bb"
1693/># Bottom line of box drawing (see <xref target="ext.element.bb"/>)</spanx>
1694<x:ref>x_bb</x:ref> =
1695  element x:bb {
1696    (TEXT
1697      | iref
1698      | xref
1699      | <x:ref>x_bb</x:ref>
1700      | <x:ref>x_bc</x:ref>
1701      | <x:ref>x_bt</x:ref>
1702      | <x:ref>x_ref</x:ref>)*
1703  }
1704
1705<spanx anchor="x_bc"><iref item="bc Extension Element"/><iref item="Extension Elements" subitem="bc"
1706/># Center line of box drawing (see <xref target="ext.element.bc"/>)</spanx>
1707<x:ref>x_bc</x:ref> =
1708  element x:bc {
1709    (TEXT
1710      | iref
1711      | xref
1712      | <x:ref>x_bb</x:ref>
1713      | <x:ref>x_bc</x:ref>
1714      | <x:ref>x_bt</x:ref>
1715      | <x:ref>x_ref</x:ref>)*
1716  }
1717
1718<spanx anchor="x_bcp14"><iref item="bcp14 Extension Element"/><iref item="Extension Elements" subitem="bcp14"
1719/># BCP14/RFC2119 keywords (see <xref target="ext.element.bcp14"/>)</spanx>
1720<x:ref>x_bcp14</x:ref> =
1721  element x:bcp14 {
1722    "MAY"
1723    | "MUST"
1724    | "MUST NOT"
1725    | "NOT RECOMMENDED"
1726    | "OPTIONAL"
1727    | "RECOMMENDED"
1728    | "REQUIRED"
1729    | "SHALL"
1730    | "SHALL NOT"
1731    | "SHOULD"
1732    | "SHOULD NOT"
1733  }
1734 
1735<spanx anchor="x_blockquote"><iref item="blockquote Extension Element"/><iref item="Extension Elements" subitem="blockquote"
1736/># Blockquote (see <xref target="ext.element.blockquote"/>)</spanx>
1737<x:ref>x_blockquote</x:ref> =
1738  element x:blockquote {
1739    attribute cite { URI }?,
1740    t+
1741  }
1742
1743<spanx anchor="x_bt"><iref item="bt Extension Element"/><iref item="Extension Elements" subitem="bt"
1744/># Top line of box drawing (see <xref target="ext.element.bt"/>)</spanx>
1745<x:ref>x_bt</x:ref> =
1746  element x:bt {
1747    (TEXT
1748      | iref
1749      | xref
1750      | <x:ref>x_bb</x:ref>
1751      | <x:ref>x_bc</x:ref>
1752      | <x:ref>x_bt</x:ref>
1753      | <x:ref>x_ref</x:ref>)*
1754  }
1755
1756<spanx anchor="x_dfn"><iref item="dfn Extension Element"/><iref item="Extension Elements" subitem="dfn"
1757/># Definition (see <xref target="ext.element.dfn"/>)</spanx>
1758<x:ref>x_dfn</x:ref> =
1759  element x:dfn {
1760    (TEXT
1761      | iref)*
1762  }
1763 
1764<spanx anchor="x_h"><iref item="h Extension Element"/><iref item="Extension Elements" subitem="h"
1765/># Heading (see <xref target="ext.element.h"/>)</spanx>
1766<x:ref>x_h</x:ref> =
1767  element x:h {
1768    TEXT
1769  }
1770
1771<spanx anchor="x_length-of"><iref item="length-of Extension Element"/><iref item="Extension Elements" subitem="length-of"
1772/># Length Measurement (see <xref target="ext.element.length-of"/>)</spanx>
1773<x:ref>x_length-of</x:ref> =
1774  element x:length-of {
1775    attribute indented { NUMBER }?,
1776    attribute target { xsd:IDREF },
1777    empty
1778  }
1779
1780<spanx anchor="x_link"><iref item="link Extension Element"/><iref item="Extension Elements" subitem="link"
1781/># Link (see <xref target="ext.element.link"/>)</spanx>
1782<x:ref>x_link</x:ref> =
1783  element x:link {
1784    attribute href { URI },
1785    attribute title { TEXT }?,
1786    attribute rel { TEXT },
1787    empty
1788  }
1789 
1790<spanx anchor="x_lt"><iref item="lt Extension Element"/><iref item="Extension Elements" subitem="lt"
1791/># Extended list item (see <xref target="ext.element.lt"/>)</spanx>
1792<x:ref>x_lt</x:ref> =
1793  element x:lt {
1794    attribute anchor { xsd:ID }?,
1795    attribute hangText { TEXT }?,
1796    t+
1797  }
1798
1799<spanx anchor="x_q"><iref item="q Extension Element"/><iref item="Extension Elements" subitem="q"
1800/># Inline quote (see <xref target="ext.element.q"/>)</spanx>
1801<x:ref>x_q</x:ref> =
1802  element x:q {
1803    TEXT
1804  }
1805
1806<spanx anchor="x_ref"><iref item="ref Extension Element"/><iref item="Extension Elements" subitem="ref"
1807/># Anchor reference (see <xref target="ext.element.ref"/>)</spanx> 
1808<x:ref>x_ref</x:ref> =
1809  element x:ref {
1810    TEXT
1811  }
1812
1813<spanx anchor="x_source"><iref item="source Extension Element"/><iref item="Extension Elements" subitem="source"
1814/># source information (see <xref target="ext.element.source"/>)</spanx> 
1815<x:ref>x_source</x:ref> =
1816  element x:source {
1817    attribute basename { ATEXT }?,
1818    attribute href { URI },
1819    empty
1820  }
1821
1822<spanx anchor="x_span"><iref item="span Extension Element"/><iref item="Extension Elements" subitem="span"
1823/># Inline Span <!--(see <xref target="ext.element.span"/>)--></spanx>
1824<x:ref>x_span</x:ref> =
1825  element x:span {
1826    attribute anchor { xsd:ID }?,
1827    TEXT
1828  }
1829
1830<spanx anchor="x_x"><iref item="x Extension Element"/><iref item="Extension Elements" subitem="x"
1831/># Nop (for alignment in source)</spanx>
1832<x:ref>x_x</x:ref> =
1833  element x:x {
1834    empty
1835  }
1836</artwork></figure>
1837  </section>
1838 
1839  <section title="Implementation Notes">
1840 
1841  <section title="Recognized type attributes for &lt;artwork> element">
1842  <t>
1843    Specific values in the &lt;artwork> element's "type" attribute are
1844    recognized and cause a different visual style to be used:
1845  </t>
1846  <texttable>
1847    <ttcol>Media Type</ttcol>
1848    <ttcol>Comment</ttcol>
1849   
1850    <c>abnf</c><c>ABNF as per <xref target="RFC5234"/></c>
1851    <c>abnf2616</c><c>ABNF as per <xref target="RFC2616" x:fmt="," x:sec="2.1" /></c>
1852    <c>application/relax-ng-compact-syntax</c><c>Relax NG Compact Syntax as per <xref target="RNC"/></c>
1853    <c>application/xml-dtd</c><c>XML DTD</c>
1854    <c>message/http; msgtype="request"</c><c>HTTP message, as per <xref target="RFC2616" x:fmt="," x:sec="19.1" /></c>
1855    <c>message/http; msgtype="response"</c><c>HTTP message, as per <xref target="RFC2616" x:fmt="," x:sec="19.1" /></c>
1856  </texttable>
1857  </section>
1858 
1859  </section>
1860 
1861  <section title="License" anchor="license">
1862  <t>
1863Copyright (c) 2006-2008, Julian Reschke (julian.reschke@greenbytes.de)
1864  </t>
1865  <t>
1866All rights reserved.
1867  </t>
1868  <t>
1869Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1870  <list style="symbols">
1871    <t>Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.</t>
1872    <t>Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.</t>
1873    <t>Neither the name of Julian Reschke nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.</t>
1874  </list>
1875  </t>
1876  <t>
1877THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1878  </t>
1879  </section>
1880
1881  <section title="Change Logs">
1882   
1883 
1884    <section title="Package">
1885      <t><list style="hanging">
1886<t hangText="2006-01-01">
1887    Switch to BSD License.
1888</t>
1889<t hangText="2007-01-12">
1890    Update to xml2rfc v1.33pre2.
1891</t>
1892<t hangText="2007-03-31">
1893    Update to xml2rfc v1.33pre3.
1894</t>
1895<t hangText="2007-05-01">
1896    Add XSLT test cases.
1897</t>
1898      </list></t>
1899    </section>
1900   
1901    <section title="amazon-asin.xslt">
1902    <t><list style="hanging">
1903<t hangText="2003-11-16">
1904     Initial release.
1905</t>
1906<t hangText="2005-04-02">
1907     Fix two DTD issues.
1908</t>
1909    </list></t>
1910    </section>
1911
1912    <section title="check-references.xslt">
1913    <t><list style="hanging">
1914<t hangText="2003-11-16">
1915     Initial release.
1916</t>
1917<t hangText="2003-11-16">
1918     Initial release.
1919</t>
1920<t hangText="2004-05-11">
1921     Add document status; print references type.
1922</t>
1923<t hangText="2005-01-01">
1924     Add experimental check for ID status.
1925</t>
1926<t hangText="2005-04-01">
1927     Add fixes from Bill Fenner.
1928</t>
1929<t hangText="2005-12-03">
1930    Add checks against local copy of <eref target="http://www.w3.org/2002/01/tr-automation/tr.rdf"/>
1931</t>
1932<t hangText="2006-07-22">
1933    Add checks for standards levels.
1934</t>
1935<t hangText="2006-08-06">
1936    "check-ietf-references.xslt" replaced by "check-references.xslt".
1937</t>
1938<t hangText="2007-01-04">
1939    Use information online at <eref target="http://tools.ietf.org/"/> to
1940    retrieve Internet-Draft status information.
1941</t>
1942<t hangText="2007-06-16">
1943    Fix bug looking up ref type when inside change markup.
1944</t>
1945    </list></t>
1946    </section>
1947   
1948    <section title="gen-reference-graph.xslt">
1949    <t><list style="hanging">
1950<t hangText="2006-09-03">
1951  New.
1952</t>
1953<t hangText="2007-06-07">
1954  Use <eref target="http://dpcarlisle.blogspot.com/2007/05/exslt-node-set-function.html">Carlisle method</eref> to define exslt:node-set in
1955  msxsml (which means that the stylesheet can now be used with MSXML as well).
1956</t>
1957<t hangText="2007-10-15">
1958  Use W3C data from tr.rdf as well (experimental).
1959</t>
1960    </list></t>
1961    </section>
1962
1963    <section title="rfc2629.xslt">
1964      <t><list style="hanging">
1965<t hangText="2001-03-28">
1966    Code rearranged, generate numbered section anchors for paragraphs (t)
1967    as well. Fixes in index handling.
1968</t>
1969<t hangText="2001-04-12">
1970    Moved HTML output into XHTML namespace.
1971</t>
1972<t hangText="2001-10-02">
1973    Fixed default location for RFCs and numbering of section references.
1974    Support ?rfc editing processing instruction.
1975</t>
1976<t hangText="2001-10-07">
1977    Made telephone number links active.
1978</t>
1979<t hangText="2001-10-08">
1980    Support for vspace element.
1981</t>
1982<t hangText="2001-10-09">
1983    Experimental support for rfc-issue PI.
1984</t>
1985<t hangText="2001-11-11">
1986    Support rfc private PI. Removed bogus code reporting the WG in the header.
1987</t>
1988<t hangText="2001-11-11">
1989    Support rfc private PI. Removed bogus code reporting the WG in the header.
1990</t>
1991<t hangText="2001-12-17">
1992    Support title attribute on references element
1993</t>
1994<t hangText="2002-01-05">
1995    Support for list/@style="@format"
1996</t>
1997<t hangText="2002-01-09">
1998    Display "closed" RFC issues as deleted
1999</t>
2000<t hangText="2002-01-14">
2001    Experimentally and optionally parse XML encountered in artwork elements
2002    (requires MSXSL).
2003</t>
2004<t hangText="2002-01-27">
2005    Some cleanup. Moved RFC issues from PIs into namespaced elements.
2006</t>
2007<t hangText="2002-01-29">
2008    Added support for sortrefs PI. Added support for figure names.
2009</t>
2010<t hangText="2002-02-07">
2011    Highlight parts of artwork which are too wide (72 characters).
2012</t>
2013<t hangText="2002-02-12">
2014    Code rearrangement for static texts. Fixes for section numbering.
2015    TOC generation rewritten.
2016</t>
2017<t hangText="2002-02-15">
2018    Support for irefs in sections; support iref @primary=true
2019</t>
2020<t hangText="2002-03-03">
2021    Moved anchor prefix into a constant. Added sanity checks on user anchor
2022    names.
2023</t>
2024<t hangText="2002-03-23">
2025    Bugfix in detection of matching org names when creating the header. Fixed
2026    sorting in subitems.
2027</t>
2028<t hangText="2002-04-02">
2029    Fix TOC link HTML generation when no TOC is generated (created broken
2030    HTML table code).
2031</t>
2032<t hangText="2002-04-03">
2033    Made rendering of references more tolerant re: missing parts.
2034</t>
2035<t hangText="2002-04-08">
2036    Fixed reference numbering when references are split into separate sections.
2037</t>
2038<t hangText="2002-04-16">
2039    Fix default namespace (shouldn't be set for HTML output method).
2040</t>
2041<t hangText="2002-04-19">
2042    Lowercase internal CSS selectors for Mozilla compliance. Do not put TOC
2043    into ul element.
2044</t>
2045<t hangText="2002-04-21">
2046    Make numbered list inside numbered lists use alphanumeric numbering.
2047</t>
2048<t hangText="2002-05-05">
2049    Updated issue/editing support.
2050</t>
2051<t hangText="2002-05-15">
2052    Bugfix for section numbering after introduction of ed:replace
2053</t>
2054<t hangText="2002-06-21">
2055    When producing private documents, do not include document status, copyright etc.
2056</t>
2057<t hangText="2002-07-08">
2058    Fix xrefs to Appendices.
2059</t>
2060<t hangText="2002-07-19">
2061    Make artwork lightyellow for easier reading. (fielding)
2062</t>
2063<t hangText="2002-10-09">
2064    Translate references title to anchor name to avoid non-uri characters. (fielding)
2065</t>
2066<t hangText="2002-10-13">
2067    Support for tocdepth PI.
2068</t>
2069<t hangText="2002-11-03">
2070    Added temporariry workaround for Mozilla/Transformiix result tree fragment problem.
2071    (search for 'http://bugzilla.mozilla.org/show_bug.cgi?id=143668')
2072</t>
2073<t hangText="2002-12-25">
2074    xref code: attempt to uppercase "section" and "appendix" when at the start
2075    of a sentence.
2076</t>
2077<t hangText="2003-02-02">
2078    fixed code for vspace blankLines="0", enhanced display for list with "format" style,
2079    got rid of HTML blockquote elements, added support for "hangIndent"
2080</t>
2081<t hangText="2003-04-10">
2082    experimental support for appendix and spanx elements
2083</t>
2084<t hangText="2003-04-19">
2085    fixed counting of list numbers in "format %" styles (one counter
2086    per unique format string). Added more spanx styles.
2087</t>
2088<t hangText="2003-05-02">
2089    experimental texttable support
2090</t>
2091<t hangText="2003-05-02">
2092    Make mailto links optional (default = none) (jre: default and PI name changed) (fielding)
2093</t>
2094<t hangText="2003-05-04">
2095    experimental support for HTML link elements; fix default for table header
2096    alignment default
2097</t>
2098<t hangText="2003-05-06">
2099    support for "background" PI.
2100</t>
2101<t hangText="2003-05-11">
2102    change %c format to lowercase alphabetic. add support for keyword
2103    elements (generate META tag). fix various HTML conformance problems.
2104    added experimental support for role attribute. do not number paragraphs
2105    in unnumbered sections. update boilerplate texts. support for
2106    "iprnotified" PI. bugfix list numbering. strip whitespace when
2107    building tel: URIs.
2108</t>
2109<t hangText="2003-05-12">
2110    more conformance fixes (layout moved into CSS, move lists and figures
2111    out of para content, do not use tables for list formatting)
2112</t>
2113<t hangText="2003-05-13">
2114    add DC.Creator meta tag, refactoring
2115</t>
2116<t hangText="2003-05-16">
2117    put nbsps between "section" and section number (xref).
2118</t>
2119<t hangText="2003-05-18">
2120    author summary: add missing comma.
2121</t>
2122<t hangText="2003-06-06">
2123    fix index generation bug (transposed characters in key generation). Enhance
2124    sentence start detection (xref starting a section was using lowercase
2125    "section").
2126</t>
2127<t hangText="2003-06-22">
2128    exp. support for xref/@format. Add missing support for eref w/o content.
2129    exp. support for annotations in reference elements. Code cleanup
2130    reference table formatting.
2131</t>
2132<t hangText="2003-07-09">
2133    Another fix for DC.Creator meta tag creation based on RFC2731
2134</t>
2135<t hangText="2003-07-24">
2136    Fix namespace name for DC.Creator.
2137</t>
2138<t hangText="2003-08-06">
2139    Cleanup node-set support (only use exslt (saxon, xalan, libxslt) extension
2140    functions; remove Transformix workarounds that stopped to work in Moz 1.4)
2141</t>
2142<t hangText="2003-08-09">
2143    Generate HTML lang tag.
2144</t>
2145<t hangText="2003-08-10">
2146    Map spanx/verb to HTML "samp" element. Fix author name display in
2147    references (reverse surname/initials for last author), add "Ed.".
2148    Fix internal bookmark generation.
2149</t>
2150<t hangText="2003-08-17">
2151    Add DCMI dates, identifiers and abstract. Add PI to suppress DCMI
2152    generation.  Do not add TOC entry to Copyright Statement when there is
2153    none. Align RFC2629 PI names and parameter names. Change style for
2154    inline URIs generated by eref. Add header and footer support.
2155    Enhance CSS paging properties. Support topblock PI. Added hooks for
2156    proper XHTML generation through separate XSLT. Enhance warning and
2157    error messages. Add support for artwork image display. Table formatting
2158    fixes (borders, thead continuation).
2159</t>
2160<t hangText="2003-08-18">
2161    Add workaround for MSXML4 node-set and Mozilla node-set issues (fallback
2162    just displays are warning).
2163</t>
2164<t hangText="2003-10-06">
2165    Add workaround for broken pre/ins handling in Mozilla
2166    (see <eref target="http://bugzilla.mozilla.org/show_bug.cgi?id=204401"/>). Make use
2167    of cite attribute on ed:replace. CSS cleanup.
2168</t>
2169<t hangText="2003-10-08">
2170    Fix minor issue detecting the same org for the header (caused by IE's
2171    non-standard whitespace handling). Fix default handling for /rfc/@category.
2172</t>
2173<t hangText="2003-11-09">
2174    Inherit ed:entered-by from ancestor elements. Change CSS color for inserted
2175    text to green. Generate issues-list anchor. Do not complain about missing
2176    targets when the xref element is below ed:del. Remove code that attempted
2177    to distinguish section/Section when producing links - always use
2178    uppercase. Fix date rendering for issue resolutions.
2179</t>
2180<t hangText="2003-11-29">
2181    Fix color values for table backgrounds for issue rendering. Change
2182    rendering of issue links to use inline-styles. Add colored issue markers to
2183    issues.
2184</t>
2185<t hangText="2003-12-13">
2186    Fix inheritance of ed:entered-by attribute. Display note elements inside
2187    change tracking as well.
2188</t>
2189<t hangText="2004-01-18">
2190    When PI compact = 'yes', make most CSS print page breaks conditional.
2191</t>
2192<t hangText="2004-02-20">
2193    Support for RFC3667 IPR changes (xml2rfc 1.22); see
2194    <eref target="http://lists.xml.resource.org/pipermail/xml2rfc/2004-February/001088.html"/>.
2195</t>
2196<t hangText="2004-03-11">
2197    Add "(if approved)" to "updates" and "obsoletes" unless the document has
2198    an RFC number.
2199</t>
2200<t hangText="2004-04-01">
2201    Fix RFC3667 output, see <eref target="http://lists.xml.resource.org/pipermail/xml2rfc/2004-April/001208.html"/>.
2202</t>
2203<t hangText="2004-04-04">
2204    Add support for section/top attribute. Move references into plain
2205    section container.
2206</t>
2207<t hangText="2004-04-06">
2208    Do not emit identical para anchors for deleted content.
2209</t>
2210<t hangText="2004-04-14">
2211    Fix references TOC generation when there are no references.
2212</t>
2213<t hangText="2004-04-24">
2214    Fix RFC3667 output, see <eref target="http://xml.resource.org/pipermail/xml2rfc/2004-April/001246.html"/>.
2215</t>
2216<t hangText="2004-05-09">
2217    Add custom support for generating compound index documents. Add anchors
2218    for each Index letter. Add experimental cref support. Fix conditional page
2219    breaks before References section.
2220</t>
2221<t hangText="2004-05-16">
2222    Refactor external index generation.
2223</t>
2224<t hangText="2004-05-20">
2225    Rewrite anchor generation for comments.
2226</t>
2227<t hangText="2004-05-22">
2228    Enhance issues rendering (add links to changes).
2229</t>
2230<t hangText="2004-05-30">
2231    Allow single quote as delimiter in processing instructions as well. Move
2232    block-level issue pointers to floats. Disable issue pointers for print
2233    media. Add "purple numbers". Add hrefs to section headings. Add non-printing
2234    index key letter list to start of index.
2235</t>
2236<t hangText="2004-06-01">
2237    Use &amp;#xb6; instead of # for PNs.
2238</t>
2239<t hangText="2004-07-18">
2240    Add support for list style=letters (thanks Roy F.). Make PNs optional;
2241    add new PI.
2242</t>
2243<t hangText="2004-09-05">
2244    Fix index links into unnumbered sections.  Bring IPR boilerplate in-line
2245    with xml2rfc 1.25.  Add experimental CSS3 paged media support.  Various
2246    HTML fixes.
2247</t>
2248<t hangText="2004-09-21">
2249    Enhance checking of artwork width.
2250</t>
2251<t hangText="2004-09-26">
2252    Add check for unused references. Uppercase letters in list style letters
2253    when nested into another list.
2254</t>
2255<t hangText="2004-10-10">
2256    Fix internal change track pointers.
2257</t>
2258<t hangText="2004-11-01">
2259    Allow change tracking on references (as a whole).  Rewrite artwork handling
2260    so that it allows change tracking inside artwork.  Also allow a subset of
2261    text markup inside artwork, such as xrefs (note this requires post-processing
2262    the source to make it compliant to RFC2629bis).
2263</t>
2264<t hangText="2004-11-03">
2265    Enhanced placement of iref anchors.
2266</t>
2267<t hangText="2004-11-06">
2268    Index: display irefs that appeared (with primary=true) inside artwork elements
2269    in a monospaced font.
2270</t>
2271<t hangText="2004-11-14">
2272    Add special code so that changes in section titles can be change-tracked.
2273</t>
2274<t hangText="2005-01-14">
2275    Bugfixes for HtmlToXhtml converter.
2276</t>
2277<t hangText="2005-01-22">
2278    Enhance generation of HTML h* elements (for Mozilla Outliner).
2279</t>
2280<t hangText="2005-01-31">
2281    Put vertical space around top-level TOC entries in TOC.  Switch to
2282    pt-based CSS. Re-arrange top section. Make hr elements reflect new-page
2283    settings in TXT output (compact-PI).  Fix page number in footer (CSS
2284    print) and add some more experimental support for paged media (tested
2285    with Prince 4.1 alpha).  Rewrite TOC and Index generation to generate HTML
2286    lists.  Cleanup id generation for paragraphs.  Reduce whitespace in output.
2287    Fix vspace implementation. Use right/left dqoutes and copyright sign
2288    where appropriate.
2289</t>
2290<t hangText="2005-02-04">
2291    Add &lt;link> element to references section.  Fix newly introduced bug
2292    in references processing.
2293</t>
2294<t hangText="2005-02-05">
2295    Integrate various fixes/enhancements by Roy Fielding: spelling of
2296    "Authors' Addresses", comma setting in references, position of "Authors"
2297    section, optionally place authors addresses at end (PI), trailing dots
2298    in section numbers, switch to verdana default font in CSS.  Add
2299    experimental support for centered artwork.
2300</t>
2301<t hangText="2005-02-09">
2302    Fixes in spacing and links of references section titles.  Enhance sorting
2303    in references when change tracking is in place.  Re-add figure centering
2304    support.  Add missing 2nd part of "Author's Adresses" fix.
2305</t>
2306<t hangText="2005-02-25">
2307    Align section number format with xml2rfc1.29.
2308</t>
2309<t hangText="2005-03-28">
2310    Get rid of table elements in Author's section.  Add experimental hCard
2311    (<eref target="http://developers.technorati.com/wiki/hCard"/>) support.
2312</t>
2313<t hangText="2005-04-03">
2314    Add RFC3978-style IPR statement support. (fenner@research.att.com)
2315</t>
2316<t hangText="2005-04-11">
2317    Cleanup author display. hCard related fixes.
2318</t>
2319<t hangText="2005-05-07">
2320    Minor fixes to allow change tracking in doc title.  Add experimental
2321    support for table border styles. CSS cleanup.
2322</t>
2323<t hangText="2005-06-18">
2324    Implement missing support for references to texttables.
2325</t>
2326<t hangText="2005-09-25">
2327    Use (-moz-)column-count when printing the index.
2328</t>
2329<t hangText="2005-10-04">
2330    Report missing element templates with xsl:message.
2331</t>
2332<t hangText="2005-10-15">
2333    Process t/@anchor.
2334</t>
2335<t hangText="2005-10-23">
2336    More workarounds for Mozilla's broken del/ins handling (this time for
2337    figures).
2338</t>
2339<t hangText="2005-10-27">
2340    lowercase hCard class names
2341</t>
2342<t hangText="2005-11-22">
2343    Enhance diagnostics for XML-in-artwork extension
2344</t>
2345<t hangText="2005-11-26">
2346    Fix formatting of section numbers for sections inserted into &lt;back>.
2347</t>
2348<t hangText="2005-12-12">
2349    Fix some validity problems when change tracking occured inside lists.
2350</t>
2351<t hangText="2005-12-18">
2352    Add change tracking inside the index.
2353</t>
2354<t hangText="2006-02-04">
2355    Add prev/next links to highlighted changes (change tracking extension).
2356</t>
2357<t hangText="2006-02-10">
2358    Catch errors instantiating MSXML component.
2359</t>
2360<t hangText="2006-02-11">
2361    References: add "work in progress" for Internet Drafts.
2362</t>
2363<t hangText="2006-02-27">
2364    Fix front matter (lowercase Internet-Draft, say "Intended status" for
2365    non-RFC documents). Start work on experimental extension for 
2366    simplified internal links.
2367</t>
2368<t hangText="2006-03-19">
2369    Tweaks to IESG Copyright stuff; support submissionType attribute.
2370    Fix duplicate reference anchors in HTML output.  Reduce HTML Tidy warnings.
2371    Fix reference to normative ASCII version (now requires trailing ".txt").
2372    Tweaks to hCard generation.  Started to move non-issue-tracking
2373    extensions into namespace "http://purl.org/net/xml2rfc/ext".
2374</t>
2375<t hangText="2006-03-27">
2376    Moved "simple reference" extension into namespace "http://purl.org/net/xml2rfc/ext"
2377    and add documentation.  HTML conformance enhancements.
2378</t>
2379<t hangText="2006-04-02">
2380    Cleanup special code for automated XHTML XSLT generation.
2381</t>
2382<t hangText="2006-04-21">
2383    Generate &lt;CITE> elements where appropiate.
2384    Introduce x:blockquote, x:dfn, x:h and x:q elements.
2385</t>
2386<t hangText="2006-05-06">
2387    Introduce x:bcp14 element.
2388</t>
2389<t hangText="2006-05-14">
2390  Fix content model for x:blockquote.
2391</t>
2392<t hangText="2006-06-18">
2393  Add box drawing support (x:bt, x:bc, x:bb).
2394</t>
2395<t hangText="2006-06-20">
2396  HTML validity fixes (legal chars in anchors in index).
2397</t>
2398<t hangText="2006-06-24">
2399  Reduce leading empty lines in artwork. Move &lt;dt> style info into CSS.
2400</t>
2401<t hangText="2006-07-14">
2402  Fix rendering of multiple street address entries (missing line break).
2403</t>
2404<t hangText="2006-07-24">
2405  Add extension for deep linking into RFCs, do not generate empty list
2406  items in TOC output, avoid empty &lt;dt> elements for list items
2407  without hangText attribute.
2408</t>
2409<t hangText="2006-08-01">
2410  Allow @anchor on more elements; start work on Relax NG grammar for
2411  extensions. Reduce generated style elements (use CSS classes instead).
2412  Consistently use "id" instead of "name". Change default target for RFC
2413  links to "http://tools.ietf.org/html/rfcNNNN".
2414</t>
2415<t hangText="2006-08-06">
2416  Include appendices defined in &lt;appendix> elements in TOC (please
2417  consider them deprecated anyhow!). Generate links to
2418  "http://tools.ietf.org/html/draft-*" for Internet Drafts.
2419  Replace x:frag by x:rel, allowing any kind of relative reference instead
2420  of just fragments.
2421</t>
2422<t hangText="2006-08-30">
2423  Reduce textual differences between HTML output and what xml2rfc produces
2424  in TXT output mode (section refs/reference targets). Add small workaround
2425  for Opera 9.0.1's problem with node-set().
2426</t>
2427<t hangText="2006-10-29">
2428  Fix problem generating internal links to change markup within references
2429  section. Enhancements when generating numbered references for deleted
2430  references.
2431  Allow inclusion of references into the index (through include-references-in-index
2432  extension).
2433  Fix a bug that caused the newer version of the IETF boilerplate to be
2434  produced rather than the pre-RFC3667 one.
2435  Update to RFC4287 boilerplate.
2436</t>
2437<t hangText="2006-11-11">
2438  Add extension attribute x:for-anchor to &lt;iref&gt; handling.
2439</t>
2440<t hangText="2006-11-26">
2441  Experimental (and limited) support for &lt;x:lt&gt;.
2442</t>
2443<t hangText="2006-12-04">
2444  Fix bugs in processing documents that have both the ipr and the number attribute
2445  set on the rfc root element. Add support for x:fmt='none' on xrefs.
2446  Add different pre style based on artwork type attributes (experimental).
2447</t>
2448<t hangText="2006-12-13">
2449  Add x:fmt='anchor' for xref elements.
2450</t>
2451<t hangText="2007-01-07">
2452  Fix root template for compatibility for the exslt:node-set implementation
2453  in Firefox3.
2454</t>
2455<t hangText="2007-01-29">
2456  Avoid empty table entry in front matter when organization is not specified
2457  for an author.
2458</t>
2459<t hangText="2007-02-10">
2460  Allow change tracking in table rows.
2461</t>
2462<t hangText="2007-03-09">
2463  Add hcard profile URI (<eref target="http://www.w3.org/2006/03/hcard"/>) to head element.
2464  Add warning for misplaced &lt;t> elements (after section).
2465</t>
2466<t hangText="2007-03-21">
2467  Fix internal linking from reference entries in index for some xref types.
2468  Minor CSS tweaks contributed by MTR. Allow turning on text justification through
2469  a PI. Improve iref anchor generation to generate less instable anchors.
2470</t>
2471<t hangText="2007-03-28">
2472  Fixes for numbering of ed:inserted references sections.
2473</t>
2474<t hangText="2007-05-04">
2475  Do not generate anchors for edits in deleted sections. Enhance HTML
2476  conformance.
2477</t>
2478<t hangText="2007-05-19">
2479  Enhance diagnostics when using Saxon (needs Saxon's "-l" command line
2480  parameter to keep line number information). Add warning when symref PI
2481  is missing (default will change in the future).
2482  Add support for overriding computed section numbers (when formatting
2483  historic documents).
2484</t>
2485<t hangText="2007-06-07">
2486  Change default for symrefs PI to "yes" (see change in xml2rfc 1.33pre4).
2487  Warn about docName attributes that appear to contain a file extension.
2488</t>
2489<t hangText="2007-06-26">
2490  Workaround author/@initials values without trailing dot, as in xml2rfc.tcl.
2491</t>
2492<t hangText="2007-07-14">
2493  Enhance index generation for references that use @x:sec attribute.
2494</t>
2495<t hangText="2007-09-09">
2496  Fix: sortrefs is a nop when symrefs=no.
2497</t>
2498<t hangText="2007-10-17">
2499  Work in progress: add support for referencing sections in sibling
2500  documents by anchor name.
2501</t>
2502<t hangText="2007-10-17">
2503  Work in progress (continued): support for referencing sections in sibling
2504  documents by anchor name.
2505</t>
2506<t hangText="2007-12-31">
2507  Emit warning when updating/obsoleting stuff that's not referenced.
2508</t>
2509<t hangText="2008-02-03">
2510  Support xml2rfc-1.33pre5's suppress-title attribute on texttable and figure.
2511</t>
2512<t hangText="2008-02-06">
2513  Extension: allow &lt;eref> below &lt;cref>.
2514</t>
2515<t hangText="2008-02-17">
2516  Extensions: add x:span and x:length-of.
2517</t>
2518      </list></t>
2519    </section>
2520    <section title="rfc2629toFO.xslt">
2521      <t><list style="hanging">
2522<t hangText="2003-11-16">
2523    Initial release.
2524</t>
2525<t hangText="2003-11-29">
2526    Enhance handling of unknown list styles.
2527</t>
2528<t hangText="2004-04-04">
2529    Update reference section handling.
2530</t>
2531<t hangText="2004-04-17">
2532    Use XSL-WD-1.1-style fo:bookmark and index handling and add postprocessors for
2533    existing implementations. Unify PDF info generation by using XEP (postprocessors)
2534    will convert.
2535</t>
2536<t hangText="2004-04-20">
2537    Add experimental cref support.
2538</t>
2539<t hangText="2004-06-14">
2540    Set correct index-item defaults.
2541</t>
2542<t hangText="2004-07-18">
2543    Add list style=letters.
2544</t>
2545<t hangText="2004-09-03">
2546    Make URLs in text break where they are allowed to break by inserting
2547    zero-width spaces.
2548</t>
2549<t hangText="2004-09-26">
2550    Fix letter-style inside nested lists.
2551</t>
2552<t hangText="2004-10-31">
2553    Update handling of artwork.
2554</t>
2555<t hangText="2004-11-13">
2556    Fix handling of references inside ed:* markup.  Fix whitespace handling
2557    in artwork.
2558</t>
2559<t hangText="2004-11-27">
2560    Irefs in artwork generate monospaced entries in index.
2561</t>
2562<t hangText="2005-01-31">
2563    Fix TOC generation that was broken after changes in main XSLT.
2564</t>
2565<t hangText="2005-02-05">
2566    Bring in sync with cosmetic changes in rfc2629.xslt.
2567</t>
2568<t hangText="2005-05-07">
2569    Minor fix for change tracking in document title.  Support for table
2570    styles.
2571</t>
2572<t hangText="2005-06-18">
2573    Fix references to tables.
2574</t>
2575<t hangText="2005-10-15">
2576    Process t/@anchor.
2577</t>
2578<t hangText="2006-02-11">
2579    References: add "work in progress" for Internet Drafts.
2580</t>
2581<t hangText="2006-06-02">
2582    Use XSL 1.1 WD Feb 2006.
2583</t>
2584<t hangText="2007-03-21">
2585    Support optional text justification.
2586</t>
2587<t hangText="2007-05-19">
2588    Various improvements in spacing; also allow overriding the automatic
2589    list indentation via list/x:indent.
2590</t>
2591     </list></t>
2592    </section>
2593
2594    <section title="xsl11toAn.xslt">
2595    <t><list style="hanging">
2596<t hangText="2004-05-17">
2597     Initial release.
2598</t>
2599<t hangText="2006-06-02">
2600    Use XSL 1.1 WD Feb 2006.
2601</t>
2602    </list></t>
2603    </section>
2604
2605    <section title="xsl11toFop.xslt">
2606    <t><list style="hanging">
2607<t hangText="2004-05-17">
2608     Initial release.
2609</t>
2610<t hangText="2006-06-02">
2611    Use XSL 1.1 WD Feb 2006.
2612</t>
2613    </list></t>
2614    </section>
2615
2616    <section title="xsl11toXep.xslt">
2617    <t><list style="hanging">
2618<t hangText="2004-05-17">
2619     Initial release.
2620</t>
2621<t hangText="2004-09-04">
2622     Fix xep:index-item attributes.
2623</t>
2624<t hangText="2006-06-02">
2625    Use XSL 1.1 WD Feb 2006.
2626</t>
2627    </list></t>
2628    </section>
2629  </section>
2630
2631</back>
2632</rfc>
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