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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="July" 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.* (release candidate available)</t>
377    <t><iref item="Safari"/><iref item="Safari" subitem="3.*"/>Safari 3 (starting with version 3.0.4)</t>
378  </list>
379</t>
380<t>
381  The following browsers are known not to work properly:
382  <list style="symbols">
383    <t anchor="firefox12"><iref item="Mozilla"/><iref item="Firefox" subitem="1.*/2.*"/>Firefox 1.*/2.* (missing extension function - see change request at Mozilla BugZilla
384    <eref target="http://bugzilla.mozilla.org/show_bug.cgi?id=193678">193678</eref>)</t>
385    <t anchor="opera"><iref item="Opera"/>Opera 9.21: execution fails, potentially
386    to a somewhat complex XPath expression (reported to Opera as bug 245725). Opera 9.5:
387    transformation appears to work, but CSS isn't getting applied (repored to Opera as bug 337388 on 2008-06-12).</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;abnf-char-sequence> element" anchor="ext.element.abnf-char-sequence">
657  <iref item="Extension Elements" subitem="abnf-char-sequence" primary="true"/>
658  <iref item="abnf-char-sequence Extension Element" primary="true"/>
659  <x:anchor-alias value="abnf-char-sequence"/>
660  <t>
661    Converts the contained quoted string into a hex-encoded character
662    sequence, for use in case-sensitive ABNF productions.
663  </t>
664  <t>
665    For instance, "&lt;x:abnf-char-sequence>"HTTP"&lt;/x:abnf-char-sequence>"
666    gets converted to "<x:abnf-char-sequence>"HTTP"</x:abnf-char-sequence>".
667  </t>
668</section>
669
670<section title="&lt;anchor-alias> element" anchor="ext.element.anchor-alias">
671  <iref item="Extension Elements" subitem="anchor-alias" primary="true"/>
672  <iref item="anchor-alias Extension Element" primary="true"/>
673  <x:anchor-alias value="anchor-alias"/>
674  <t>
675    Using its "value" attribute, this element allows the definition of an
676    internal link target alias for the enclosing element. This alias can
677    then be used with the &lt;<x:ref>ref</x:ref>> element for intra-document
678    references.
679  </t>
680  <t>
681    Note that the anchor alias is not subject to the naming constraints that
682    apply to anchor elements (which are <eref target="http://www.w3.org/TR/REC-xml/#NT-Name">XML
683    names</eref>).
684  </t>
685</section>
686
687<section title="&lt;bcp14> element" anchor="ext.element.bcp14">
688  <iref item="Extension Elements" subitem="bcp14" primary="true"/>
689  <iref item="bcp14 Extension Element" primary="true"/>
690  <x:anchor-alias value="bcp14"/>
691  <t>
692    This element marks the content as being one of the normative keywords
693    defined in <xref target="RFC2119"/>.
694  </t>
695  <figure>
696    <preamble>
697      The DOCTYPE definition below allows using these keywords using XML
698      entity expansion: such as in "...server &amp;MUST; accept...".
699    </preamble>
700    <artwork type="example">
701&lt;!DOCTYPE rfc [
702 &lt;!ENTITY MAY "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
703   >MAY&lt;/bcp14>">
704 &lt;!ENTITY MUST "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
705   >MUST&lt;/bcp14>">
706 &lt;!ENTITY MUST-NOT "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
707   >MUST NOT&lt;/bcp14>">
708 &lt;!ENTITY OPTIONAL "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
709   >OPTIONAL&lt;/bcp14>">
710 &lt;!ENTITY RECOMMENDED "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
711   >RECOMMENDED&lt;/bcp14>">
712 &lt;!ENTITY REQUIRED "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
713   >REQUIRED&lt;/bcp14>">
714 &lt;!ENTITY SHALL "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
715   >SHALL&lt;/bcp14>">
716 &lt;!ENTITY SHALL-NOT "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
717   >SHALL NOT&lt;/bcp14>">
718 &lt;!ENTITY SHOULD "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
719   >SHOULD&lt;/bcp14>">
720 &lt;!ENTITY SHOULD-NOT "&lt;bcp14 xmlns='http://purl.org/net/xml2rfc/ext'
721   >SHOULD NOT&lt;/bcp14>">]></artwork>
722  </figure>
723</section>
724
725<section title="&lt;bb> element" anchor="ext.element.bb">
726  <iref item="Extension Elements" subitem="bb" primary="true"/>
727  <iref item="bb Extension Element" primary="true"/>
728  <x:anchor-alias value="bb"/>
729  <t>
730    Marking up a string as &lt;bb> indicates that it represents the bottom
731    line of a box drawing, replacing the "+" and "-" characters accordingly.
732  </t>
733</section>
734
735<section title="&lt;bc> element" anchor="ext.element.bc">
736  <iref item="Extension Elements" subitem="bc" primary="true"/>
737  <iref item="bc Extension Element" primary="true"/>
738  <x:anchor-alias value="bc"/>
739  <t>
740    Marking up a string as &lt;bc> indicates that it represents a center
741    line of a box drawing, replacing the "|" character accordingly.
742  </t>
743</section>
744
745<section title="&lt;blockquote> element" anchor="ext.element.blockquote">
746  <iref item="Extension Elements" subitem="blockquote" primary="true"/>
747  <iref item="blockquote Extension Element" primary="true"/>
748  <x:anchor-alias value="blockquote"/>
749  <t>
750    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"/> 
751    (note this is a block-level element!). It should contain one or more
752    &lt;t> child elements.
753  </t>
754</section>
755
756<section title="&lt;bt> element" anchor="ext.element.bt">
757  <iref item="Extension Elements" subitem="bt" primary="true"/>
758  <iref item="bt Extension Element" primary="true"/>
759  <x:anchor-alias value="bt"/>
760  <t>
761    Marking up a string as &lt;bt> indicates that it represents the top
762    line of a box drawing, replacing the "+" and "-" characters accordingly.
763  </t>
764</section>
765
766<section title="&lt;dfn> element" anchor="ext.element.dfn">
767  <iref item="Extension Elements" subitem="dfn" primary="true"/>
768  <iref item="dfn Extension Element" primary="true"/>
769  <x:anchor-alias value="dfn"/>
770  <t>
771    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"/>.
772  </t>
773</section>
774
775<section title="&lt;h> element" anchor="ext.element.h">
776  <iref item="Extension Elements" subitem="h" primary="true"/>
777  <iref item="h Extension Element" primary="true"/>
778  <x:anchor-alias value="h"/>
779  <t>
780    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"/>.
781  </t>
782</section>
783
784<section title="&lt;length-of> element" anchor="ext.element.length-of">
785  <iref item="Extension Elements" subitem="length-of" primary="true"/>
786  <iref item="length-of Extension Element" primary="true"/>
787  <x:anchor-alias value="length-of"/>
788  <t>
789    This element can be used to insert the length of another formatted
790    section (in decimal).
791  </t>
792  <figure>
793    <preamble>Example: computing the Content-Length header value</preamble>
794    <artwork type="example">
795&lt;artwork>
796...
797Content-Length: &lt;x:length-of target="req"/>
798 
799&lt;x:span anchor="req">123456789
800&lt;x:span>&lt;artwork/>
801</artwork>
802  </figure>
803  <t>
804    The lenght computation counts line ends as two characters (CRLF).
805  </t>
806  <t>
807    Note that indentation characters in artwork <spanx>will</spanx> be
808    counted. The "indented" attribute allows to specify the amount of
809    indentation to be substracted from the computed length.
810  </t>
811</section>
812
813<section title="&lt;link> element" anchor="ext.element.link">
814  <iref item="Extension Elements" subitem="link" primary="true"/>
815  <iref item="link Extension Element" primary="true"/>
816  <x:anchor-alias value="link"/>
817  <t>
818    This element can be added as a top-level child element below
819    &lt;rfc> to indicate additional link information. It's currently
820    used only when generating HTML output, in which case an HTML
821    <eref target="http://www.w3.org/TR/html4/struct/links.html#edef-LINK">&lt;link></eref> element with identical attributes gets generated.
822  </t>
823  <figure>
824    <preamble>Example: generating HTML link element</preamble>
825    <artwork type="example">
826        &lt;x:link xmlns="http://purl.org/net/xml2rfc/ext"
827            rel="Bookmark"
828            title="IETF WEBDAV Working Group"
829            href="http://ftp.ics.uci.edu/pub/ietf/webdav/"/></artwork>
830  </figure>
831</section>
832
833<section title="&lt;lt> element" anchor="ext.element.lt">
834  <iref item="Extension Elements" subitem="lt" primary="true"/>
835  <iref item="lt Extension Element" primary="true"/>
836  <x:anchor-alias value="lt"/>
837  <t>
838    Used for grouping multiple &lt;t&gt; elements into a single list item.
839  </t>
840</section>
841
842<section title="&lt;q> element" anchor="ext.element.q">
843  <iref item="Extension Elements" subitem="q" primary="true"/>
844  <iref item="q Extension Element" primary="true"/>
845  <x:anchor-alias value="q"/>
846  <t>
847    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"/>.
848  </t>
849</section>
850
851<section title="&lt;ref> element" anchor="ext.element.ref">
852  <iref item="Extension Elements" subitem="ref" primary="true"/>
853  <iref item="ref Extension Element" primary="true"/>
854  <x:anchor-alias value="ref"/>
855  <t>
856    This element is a simplified variant of the &lt;xref> element, in that
857    no "target" attribute needs to be specified, instead the text contents
858    acts as identifier.  That in itself wouldn't be terribly useful,
859    but together with the &lt;<x:ref>anchor-alias</x:ref>>, it allows
860    referring to other parts of the document with minimal additional markup.
861  </t>
862  <t>
863    For instance, given an alias definition such as
864  </t>
865  <figure>
866    <artwork type="example">
867      &lt;section title="Test" anchor="test">
868        &lt;x:anchor-alias value="alias1"/>
869        &lt;x:anchor-alias value="alias 2"/>
870        ...
871      &lt;/section></artwork>
872  </figure>
873  <t>
874    the following simple references
875  </t>
876  <figure>
877    <artwork type="example">
878      &lt;x:ref>test&lt;/x:ref>
879      &lt;x:ref>alias1&lt;/x:ref>
880      &lt;x:ref>alias 2&lt;/x:ref></artwork>
881  </figure>
882  <t>
883    are equivalent to...:
884  </t>
885  <figure>
886    <artwork type="example">
887      &lt;xref target="test">test&lt;/xref>
888      &lt;xref target="test">alias1&lt;/xref>
889      &lt;xref target="test">alias 2&lt;/xref></artwork>
890  </figure>
891</section>
892
893<section title="&lt;source> element" anchor="ext.element.source">
894  <iref item="Extension Elements" subitem="source" primary="true"/>
895  <iref item="source Extension Element" primary="true"/>
896  <x:anchor-alias value="source"/>
897  <t>
898    Can be used to enhance a &lt;reference> with information about the
899    location for the XML source. This can be used by the &lt;xref>
900    processing code to automatically extract the target section number.
901  </t>
902  <figure>
903    <preamble>
904      For example:
905    </preamble>
906    <artwork type="example">
907      ...
908      &lt;xref target="RFC2616" x:fmt="of" x:rel="#PUT" />
909      ...
910   
911      &lt;reference target="RFC2616"/>
912        ...
913        &lt;x:source href="rfc2616.xml"/>
914        ...
915    </artwork>
916  </figure>
917</section>
918
919<section title="&lt;sup> element" anchor="ext.element.sup">
920  <iref item="Extension Elements" subitem="sup" primary="true"/>
921  <iref item="sup Extension Element" primary="true"/>
922  <x:anchor-alias value="sup"/>
923  <t>
924    This element is like the "<eref target="http://www.w3.org/TR/html401/struct/text.html#edef-SUP">sup</eref>" element in <xref target="HTML"/>.
925  </t>
926  <t>
927    Note: the down conversion to RFC2629 format replaces
928    "x<x:sup>y</x:sup>" by "x^y".
929  </t>
930</section>
931
932<section title="Extensions to Xml2rfc &lt;iref&gt; element" anchor="ext-rfc2629.iref">
933<t>
934  The extension attribute below is allowed on the standard &lt;iref&gt; element:
935  <list style="symbols">
936    <t>x:for-anchor specifies that the &lt;iref&gt; will also be automatically
937    inserted whenever the specified anchor is cross-referenced -- this may
938    save entering lots of &lt;iref&gt; instances. As a special case, a value of
939    "" (empty string) refers to the anchor attribute of the closest ancestor.</t>
940  </list>
941</t>
942</section>
943
944<section title="Extensions to Xml2rfc &lt;list&gt; element" anchor="ext-rfc2629.list">
945<t>
946  The extension attribute below is allowed on the standard &lt;list&gt; element:
947  <list style="symbols">
948    <t>x:indent specifies the amount of indentation for list items in hanging
949    lists. This can be useful when the output format, such as XSL-FO, does not
950    support automatical formatting. The value takes an XSL-FO width, such as "5em".
951    The default is <spanx>length of longest label in characters</spanx> times
952    <spanx>0.8em</spanx>.</t>
953  </list>
954</t>
955<t>
956  Also, the &lt;list&gt; element can take &lt;x:<x:ref>lt</x:ref>&gt; child elements instead of
957  &lt;t&gt;, allowing to insert multiple paragraphs into a single list item.
958</t>
959</section>
960
961<section title="Extensions to Xml2rfc &lt;section&gt; element" anchor="ext-rfc2629.section">
962<t>
963  The extension attribute below is allowed on the standard &lt;list&gt; element:
964  <list style="symbols">
965    <t>x:fixed-section-number can be used to specify a fixed section number.
966    This can be useful when formatting historic documents that used a different
967    numbering style.</t>
968  </list>
969</t>
970</section>
971
972<section title="Extensions to Xml2rfc &lt;xref&gt; element" anchor="ext-rfc2629.xref">
973<t>
974  Three extension attributes are allowed on the standard &lt;xref&gt; element:
975  <list style="numbers">
976    <t>x:sec can be specified to point to a specific section of the referenced document,</t>
977    <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>
978    <t>x:fmt defines the text format to be used.</t>
979  </list>
980</t>
981<t>
982  The following formats are defined for the x:fmt attribute:
983  <list style="hanging">
984    <t hangText=", (Comma)">
985      [<spanx>reference</spanx>], Section <spanx>sec</spanx>
986    </t>
987    <t hangText="()">
988      [<spanx>reference</spanx>] (Section <spanx>sec</spanx>)
989    </t>
990    <t hangText="anchor">
991      Like the default format, but without brackets.
992    </t>
993    <t hangText="of">
994      Section <spanx>sec</spanx> of [<spanx>reference</spanx>]
995    </t>
996    <t hangText="number">
997      <spanx>sec</spanx>
998    </t>
999    <t hangText="none">
1000      No output (can be used to have xrefs to references without
1001      having them rendered as such)
1002    </t>
1003    <t hangText="sec">
1004      Section <spanx>sec</spanx>
1005    </t>
1006  </list>
1007</t>
1008<t>
1009  These extensions are currently only supported for &lt;xref&gt; elements without
1010  child nodes.
1011</t>
1012<t>
1013  If the processor knows how to reference the target section, it will generate
1014  a link directly to the target section, such as in <xref target="RFC2119" x:fmt="," x:sec="5"/>.
1015</t>
1016</section>
1017
1018</section>
1019
1020<section title="Utilities" anchor="utilities">
1021
1022<section title="Checking References" anchor="checking-references">
1023<t>
1024  <spanx style="verb">check-references.xslt</spanx> can be used to check
1025  all references to RFC- and ID-series IETF publications and to W3C publications (note
1026  this script requires local copies of
1027  <eref target="ftp://ftp.isi.edu/in-notes/rfc-index.xml"/> and
1028  <eref target="http://www.w3.org/2002/01/tr-automation/tr.rdf"/> and
1029  will use the XML status information provided at <eref target="http://tools.ietf.org/"/>).
1030</t>
1031<t>
1032  If the document is supposed to be published on the IETF standards track,
1033  the desired level can be specified using the parameter <spanx style='verb'>intended-level</spanx>
1034  as 'PROPOSED', 'DRAFT' or 'STANDARD'.
1035</t>
1036<figure>
1037<preamble>
1038For instance, as of 2006-08-06, the script produces for <eref target="http://greenbytes.de/tech/webdav/rfc2518.xml"/>:
1039</preamble>
1040<artwork type="example">
1041> saxon rfc2518.xml check-references.xslt
1042
1043Normative References:
1044ISO-11578: not checked
1045ISO-639: not checked
1046ISO-8601: not checked
1047REC-xml-19980210: [FirstEdition] obsoleted by REC-xml-20001006
1048REC-xml-names-19990114: [REC] obsoleted by PER-xml-names-20060614
1049RFC1766: [PROPOSED STANDARD] obsoleted by RFC3066 RFC3282
1050RFC2068: [PROPOSED STANDARD] obsoleted by RFC2616
1051RFC2069: [PROPOSED STANDARD] obsoleted by RFC2617
1052RFC2119: [BEST CURRENT PRACTICE] (-> BCP0014) ok
1053RFC2141: [PROPOSED STANDARD] ok
1054RFC2277: [BEST CURRENT PRACTICE] (-> BCP0018) ok
1055RFC2396: [DRAFT STANDARD] obsoleted by RFC3986
1056RFC2279: [DRAFT STANDARD] obsoleted by RFC3629
1057
1058Informational References:
1059REC-PICS-labels-961031: [REC] ok
1060RFC1807: [INFORMATIONAL] ok
1061RFC2026: [BEST CURRENT PRACTICE] (-> BCP0009) ok
1062RFC2291: [INFORMATIONAL] ok
1063RFC2376: [INFORMATIONAL] obsoleted by RFC3023
1064RFC2413: [INFORMATIONAL] ok
1065USMARC: not checked
1066WF: not checked
1067</artwork></figure>
1068<t>
1069  Recognized formats in the &lt;seriesInfo> element are:
1070  <list style="symbols">
1071    <t>for RFCs, the name attribute must be "RFC", and the value attribute must
1072    be the number of the RFC,</t>
1073    <t>for Internet Drafs, the name attribute must be "ID" or "Internet-Draft", and the value attribute must
1074    be the file name of the draft (including the two-digit running number, but excluding a file extension),</t>
1075    <t>for W3C documents, the name attribute must be "W3C", must start with "W3C&#160;", or
1076    must start with "World Wide Web Consortium&#160;", and the value attribute
1077    must be the "shorthand" name of the specification, such as "REC-xml-19980210".</t>
1078  </list>
1079</t>
1080
1081</section>
1082
1083<section title="Generating Graphs from References">
1084<t>
1085  <spanx style="verb">gen-reference-graph.xslt</spanx> generates a graph
1086  of RFC dependencies, using the same base data as in <spanx style="verb">check-references.xslt</spanx>
1087  (see <xref target="checking-references"/>). Its output is a "dot" file,
1088  to be processed by GraphViz (see <eref target="http://www.graphviz.org/"/>).
1089</t>
1090<figure>
1091<preamble>
1092The picture below shows the RFC dependencies in RFC2629.
1093</preamble>
1094<artwork src="rfc2629xslt-fig2.png" type="image/png">
1095(PNG output obtained from GraphViz)
1096</artwork>
1097</figure>
1098</section>
1099
1100<section title="Producing reference entries for books">
1101<t>
1102  <spanx style="verb">amazon-asin.xslt</spanx> uses the Amazon web services
1103  to generate a &lt;reference> element for a given ASIN (ISBN).
1104</t>
1105<figure>
1106<preamble>For instance:</preamble>
1107<artwork type="example">
1108&lt;?xml version="1.0" encoding="utf-8"?>
1109&lt;references>
1110 &lt;reference target="urn:isbn:0134516591">
1111   &lt;front>
1112     &lt;title>Simple Book, The: An Introduction to Internet Management,
1113               Revised Second Edition&lt;/title>
1114     &lt;author surname="Rose"
1115                fullname="Marshall T. Rose" initials="M. T. ">
1116       &lt;organization/>
1117     &lt;/author>
1118     &lt;author surname="Marshall"
1119                fullname="Rose T. Marshall" initials="R. T.">
1120       &lt;organization/>
1121     &lt;/author>
1122     &lt;date year="1996" month="March"/>
1123   &lt;/front>
1124   &lt;seriesInfo name="Prentice Hall" value=""/>
1125 &lt;/reference>
1126&lt;/references>
1127</artwork></figure>
1128<t>
1129  Note that the resulting XML usually requires checking, in this case Amazon's
1130  database is playing tricks with Marshall's name...
1131</t>
1132</section>
1133
1134<section title="Down-converting to RFC2629bis DTD" anchor="clean-for-dtd">
1135<t>
1136  <spanx style="verb">clean-for-DTD.xslt</spanx> can be used to down-convert
1137  some extensions to a format that is supported by the base xml2rfc
1138  distribution.  Note that these extensions are experimental (feedback
1139  appreciated).
1140</t>
1141<t>
1142  The following mappings are done:
1143  <list style="symbols">
1144    <t>
1145      &lt;iref> elements inside &lt;artwork> elements are moved in front
1146      of the enclosing &lt;figure> element.
1147    </t>
1148    <t>
1149      &lt;xref> elements inside &lt;artwork> are expanded just like in
1150      regular text (that is, the markup is stripped, but the element
1151      is replaced by the applicable replacement text).
1152    </t>
1153    <t>
1154      &lt;x:<x:ref>anchor-alias</x:ref>> elements get stripped.
1155    </t>
1156    <t>
1157      &lt;x:<x:ref>bcp14</x:ref>> elements get stripped.
1158    </t>
1159    <t>
1160      &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.
1161    </t>
1162    <t>
1163      &lt;x:<x:ref>blockquote</x:ref>> elements get converted to
1164      indented text (through a &lt;list> element).
1165    </t>
1166    <t>
1167      &lt;x:<x:ref>dfn</x:ref>> elements get stripped.
1168    </t>
1169    <t>
1170      &lt;x:<x:ref>h</x:ref>> elements get stripped.
1171    </t>
1172    <t>
1173      &lt;x:<x:ref>link</x:ref>> elements get stripped.
1174    </t>
1175    <t>
1176      &lt;x:<x:ref>q</x:ref>> elements get stripped, with apostrophes
1177      added around the text.
1178    </t>
1179    <t>
1180      &lt;x:<x:ref>ref</x:ref>> elements get replaced by &lt;xref>
1181      elements, targetting either the anchor or another anchor with
1182      matching &lt;x:<x:ref>anchor-alias</x:ref>> child element.
1183    </t>
1184  </list>
1185</t>
1186</section>
1187
1188<section title="Extracting artwork" anchor="extract-artwork">
1189<t>
1190  With <spanx style="verb">extract-artwork.xslt</spanx>, artwork elements
1191  named through the "name" attribute can be extracted. This can be used
1192  to automatically check their syntax (for instance, when ABNFs appear
1193  within a figure element).
1194</t>
1195<figure><preamble>For instance:</preamble>
1196<artwork type="example">saxon rfc3986.xml extract-artwork.xslt name=uri.abnf
1197</artwork>
1198</figure>
1199<t>
1200  In addition, artwork of a specific type can be extracted, such as with:
1201</t>
1202<figure>
1203<artwork type="example">saxon rfc3986.xml extract-artwork.xslt type=abnf
1204</artwork>
1205</figure>
1206</section>
1207
1208<section title="GRRDL" anchor="grddl">
1209<t>
1210  <spanx style="verb">rfc2629grddl.xslt</spanx> extracts RDF
1211  information. This is experimental work-in-progress. See
1212  <eref target="http://www.w3.org/TR/grddl/"/> for more information.
1213</t>
1214</section>
1215</section>
1216
1217 
1218
1219</middle>
1220
1221<back>
1222<references title="Informative References">
1223
1224<reference anchor="RFC2119">
1225  <front>
1226    <title abbrev="RFC Key Words">Key words for use in RFCs to Indicate Requirement Levels</title>
1227    <author initials="S." surname="Bradner" fullname="Scott Bradner">
1228    <organization>Harvard University</organization>
1229    <address>
1230      <email>sob@harvard.edu</email>
1231    </address></author>
1232    <date month="March" year="1997"/>
1233  </front>
1234  <seriesInfo name="BCP" value="14"/>
1235  <seriesInfo name="RFC" value="2119"/>
1236</reference>
1237
1238<reference anchor="RFC2616">
1239  <front>
1240  <title abbrev="HTTP/1.1">Hypertext Transfer Protocol -- HTTP/1.1</title>
1241  <author initials="R.T." surname="Fielding" fullname="Roy T. Fielding">
1242  <organization>University of California, Irvine, Information and Computer Science</organization>
1243  <address>
1244  <postal>
1245  <street/>
1246  <city>Irvine</city>
1247  <region>CA</region>
1248  <code>92697-3425</code>
1249  <country>US</country></postal>
1250  <phone>+1 949 824 1715</phone>
1251  <email>fielding@ics.uci.edu</email></address></author>
1252  <author initials="J." surname="Gettys" fullname="James Gettys">
1253  <organization>World Wide Web Consortium, MIT Laboratory for Computer Science</organization>
1254  <address>
1255  <postal>
1256  <street>545 Technology Square</street>
1257  <city>Cambridge</city>
1258  <region>MA</region>
1259  <code>02139</code>
1260  <country>US</country></postal>
1261  <phone/>
1262  <facsimile>+1 617 258 8682</facsimile>
1263  <email>jg@w3.org</email></address></author>
1264  <author initials="J.C." surname="Mogul" fullname="Jeffrey C. Mogul">
1265  <organization>Compaq Computer Corporation, Western Research Laboratory</organization>
1266  <address>
1267  <postal>
1268  <street>250 University Avenue</street>
1269  <city>Palo Alto</city>
1270  <region>CA</region>
1271  <code>94301</code>
1272  <country>US</country></postal>
1273  <phone/>
1274  <email>mogul@wrl.dec.com</email></address></author>
1275  <author initials="H.F." surname="Nielsen" fullname="Henrik Frystyk Nielsen">
1276  <organization>World Wide Web Consortium, MIT Laboratory for Computer Science</organization>
1277  <address>
1278  <postal>
1279  <street>545 Technology Square</street>
1280  <city>Cambridge</city>
1281  <region>MA</region>
1282  <code>02139</code>
1283  <country>US</country></postal>
1284  <phone/>
1285  <facsimile>+1 617 258 8682</facsimile>
1286  <email>frystyk@w3.org</email></address></author>
1287  <author initials="L." surname="Masinter" fullname="Larry Masinter">
1288  <organization>Xerox Corporation</organization>
1289  <address>
1290  <postal>
1291  <street>3333 Coyote Hill Road</street>
1292  <city>Palo Alto</city>
1293  <region>CA</region>
1294  <code>94034</code>
1295  <country>US</country></postal>
1296  <phone/>
1297  <email>masinter@parc.xerox.com</email></address></author>
1298  <author initials="P.J." surname="Leach" fullname="Paul J. Leach">
1299  <organization>Microsoft Corporation</organization>
1300  <address>
1301  <postal>
1302  <street>1 Microsoft Way</street>
1303  <city>Redmond</city>
1304  <region>WA</region>
1305  <code>98052</code>
1306  <country>US</country></postal>
1307  <phone/>
1308  <email>paulle@microsoft.com</email></address></author>
1309  <author initials="T." surname="Berners-Lee" fullname="Tim Berners-Lee">
1310  <organization>World Wide Web Consortium, MIT Laboratory for Computer Science</organization>
1311  <address>
1312  <postal>
1313  <street>545 Technology Square</street>
1314  <city>Cambridge</city>
1315  <region>MA</region>
1316  <code>02139</code>
1317  <country>US</country></postal>
1318  <phone>+1 617 258 8682</phone>
1319  <facsimile/>
1320  <email>timbl@w3.org</email></address></author>
1321  <date month="June" year="1999"/>
1322  </front>
1323  <seriesInfo name="RFC" value="2616"/>
1324</reference>
1325
1326<reference anchor='RFC2629'>
1327  <front>
1328    <title>Writing I-Ds and RFCs using XML</title>
1329    <author initials='M.T.' surname='Rose' fullname='Marshall T. Rose'>
1330      <organization>Invisible Worlds, Inc.</organization>
1331      <address>
1332        <postal>
1333          <street>660 York Street</street>
1334          <city>San Francisco</city>
1335          <region>CA</region>
1336          <code>94110</code>
1337          <country>US</country>
1338        </postal>
1339        <phone>+1 415 695 3975</phone>
1340        <email>mrose@not.invisible.net</email>
1341        <uri>http://invisible.net/</uri>
1342      </address>
1343    </author>
1344    <date month='June' year='1999' />
1345  </front>
1346  <seriesInfo name='RFC' value='2629' />
1347</reference>
1348
1349<reference anchor='RFC2648'>
1350  <front>
1351    <title>A URN Namespace for IETF Documents</title>
1352    <author initials='R.' surname='Moats' fullname='Ryan Moats'>
1353      <organization>AT&amp;T</organization>
1354      <address>
1355      <postal>
1356        <street>15621 Drexel Circle</street>
1357        <city>Omaha</city>
1358        <region>NE</region>
1359        <code>68135-2358</code>
1360        <country>US</country>
1361      </postal>
1362      <email>jayhawk@att.com</email></address>
1363    </author>
1364    <date month='August' year='1999' />
1365  </front>
1366  <seriesInfo name='RFC' value='2648' />
1367</reference>
1368
1369<reference anchor='RFC2731'>
1370  <front>
1371    <title>Encoding Dublin Core Metadata in HTML</title>
1372    <author initials='J.A.' surname='Kunze' fullname='John A. Kunze'>
1373      <organization>University of California, San Francisco,  Center for Knowledge Management</organization>
1374      <address>
1375        <postal>
1376          <street>530 Parnassus Ave</street>
1377          <street>Box 0840</street>
1378          <city>San Francisco</city>
1379          <region>CA</region>
1380          <code>94143-0840</code>
1381          <country>US</country>
1382        </postal>
1383        <facsimile>+1 415 476 4653</facsimile>
1384        <email>jak@ckm.ucsf.edu</email>
1385      </address>
1386    </author>
1387    <date month='December' year='1999' />
1388  </front>
1389  <seriesInfo name='RFC' value='2731' />
1390</reference>
1391
1392<reference anchor="RFC5234">
1393  <front>
1394    <title abbrev="ABNF for Syntax Specifications">Augmented BNF for Syntax Specifications: ABNF</title>
1395    <author initials="D." surname="Crocker" fullname="Dave Crocker" role="editor">
1396      <organization>Brandenburg InternetWorking</organization>
1397      <address>
1398      <postal>
1399      <street>675 Spruce Dr.</street>
1400      <city>Sunnyvale</city>
1401      <region>CA</region>
1402      <code>94086</code>
1403      <country>US</country></postal>
1404      <phone>+1.408.246.8253</phone>
1405      <email>dcrocker@bbiw.net</email></address> 
1406    </author>
1407    <author initials="P." surname="Overell" fullname="Paul Overell">
1408      <organization>THUS plc.</organization>
1409      <address>
1410      <postal>
1411      <street>1/2 Berkeley Square</street>
1412      <street>99 Berkely Street</street>
1413      <city>Glasgow</city>
1414      <code>G3 7HR</code>
1415      <country>UK</country></postal>
1416      <email>paul.overell@thus.net</email></address>
1417    </author>
1418    <date month="January" year="2008"/>
1419  </front>
1420  <seriesInfo name="STD" value="68"/>
1421  <seriesInfo name="RFC" value="5234"/>
1422</reference>
1423
1424<reference anchor="HTML" target="http://www.w3.org/TR/html401/">
1425  <front>
1426    <title>HTML 4.01 Specification</title>
1427    <author initials="D." surname="Raggett" fullname="David Raggett">
1428      <organization>W3C</organization>
1429      <address>
1430        <email>dsr@w3.org</email>
1431      </address>
1432    </author>
1433    <author initials="A." surname="Hors" fullname="Arnaud Le Hors">
1434      <organization>W3C</organization>
1435    </author>
1436    <author initials="I." surname="Jacobs" fullname="Ian Jacobs">
1437      <organization>W3C</organization>
1438    </author>
1439    <date month="December" day="24" year="1999" />
1440  </front>
1441  <seriesInfo name="W3C" value="REC-html401-19991224" />
1442</reference>
1443
1444<reference anchor="XHTML2" target="http://www.w3.org/TR/xhtml2">
1445  <front>
1446    <title>XHTML&#8482; 2.0</title>
1447    <author initials="J." surname="Axelsson" fullname="Jonny Axelsson">
1448      <organization>Opera Software</organization>
1449    </author>
1450    <author initials="M." surname="Birbeck" fullname="Mark Birbeck">
1451      <organization>x-port.net</organization>
1452    </author>
1453    <author initials="M." surname="Dubinko" fullname="Micah Dubinko">
1454      <organization></organization>
1455    </author>
1456    <author initials="B." surname="Epperson" fullname="Beth Epperson">
1457      <organization>Websense</organization>
1458    </author>
1459    <author initials="M." surname="Ishikawa" fullname="Masayasu Ishikawa">
1460      <organization>W3C</organization>
1461    </author>
1462    <author initials="S." surname="McCarron" fullname="Shane McCarron">
1463      <organization>Applied Testing and Technology</organization>
1464    </author>
1465    <author initials="A." surname="Navarro" fullname="Ann Navarro">
1466      <organization>WebGeek, Inc.</organization>
1467    </author>
1468    <author initials="S." surname="Pemberton" fullname="Steven Pemberton">
1469      <organization>CWI</organization>
1470    </author>
1471    <date month="July" day="26" year="2006" />
1472  </front>
1473  <seriesInfo name="W3C" value="WD-xhtml2-20060726" />
1474</reference>
1475
1476<reference anchor="XSL-FO" target="http://www.w3.org/TR/2006/REC-xsl11-20061205/">
1477  <front>
1478    <title>Extensible Stylesheet Language (XSL) Version 1.1</title>
1479    <author initials="A." surname="Berglund" fullname="Anders Berglund">
1480      <organization>IBM</organization>
1481      <address>
1482        <email>alrb@us.ibm.com</email>
1483      </address>
1484    </author>
1485    <date month="Dec" day="5" year="2006" />
1486  </front>
1487  <seriesInfo name="W3C" value="REC-xsl11-20061205" />
1488</reference>
1489
1490<reference anchor="RNC" target="http://www.oasis-open.org/committees/relax-ng/compact-20021121.html">
1491  <front>
1492    <title>RELAX NG Compact Syntax</title>
1493    <author initials="J." surname="Clark" fullname="James Clark">
1494      <organization/>
1495      <address>
1496        <email>jjc@jclark.com</email>
1497      </address>
1498    </author>
1499    <date month="Nov" day="21" year="2002" />
1500  </front>
1501  <seriesInfo name="OASIS" value=""/>
1502</reference>
1503
1504</references>
1505
1506  <section title="RELAX NG Compact Schema" anchor="grammar">
1507  <iref item="Grammar" primary="true"/>
1508  <iref item="Schema" primary="true"/>
1509  <iref item="RELAX NG Compact Schema" primary="true"/>
1510  <t>
1511    The RelaxNG schema (<xref target="RNC"/>) below can be used to validate
1512    input documents (for instance, with <eref target="http://www.thaiopensource.com/relaxng/jing.html">Jing</eref>).
1513  </t>
1514  <t>
1515    <spanx>Note that this is work in progress, and doesn't yet cover all
1516    extensions completely.</spanx>
1517  </t>
1518  <figure>
1519    <artwork type="application/relax-ng-compact-syntax" name="rfc2629-ext.rnc" x:extraction-note="# Automatically extracted from rfc2629xslt.xml. DO NOT EDIT!&#10;">
1520<spanx># WORK IN PROGRESS! PLEASE REPORT PROBLEMS TO THE AUTHOR.</spanx>
1521
1522<spanx># Define our extension namespace</spanx>
1523namespace x = "http://purl.org/net/xml2rfc/ext"
1524
1525<spanx># Define GRDDL namespace</spanx>
1526namespace grddl = "http://www.w3.org/2003/g/data-view#"
1527
1528<spanx># Include rfc2629bis RNC grammar</spanx>
1529include "rfc2629.rnc" {
1530 
1531  <spanx># Redefine &lt;artwork> to allow markup</spanx>
1532  artwork =
1533    element artwork {
1534      attlist.artwork,
1535      (TEXT
1536        <spanx style="strong">| eref</spanx> 
1537        <spanx style="strong">| iref</spanx> 
1538        <spanx style="strong">| spanx</spanx> 
1539        <spanx style="strong">| xref</spanx>
1540        <spanx style="strong">| <x:ref>x_abnf-char-sequence</x:ref></spanx>
1541        <spanx style="strong">| <x:ref>x_bb</x:ref></spanx>
1542        <spanx style="strong">| <x:ref>x_bc</x:ref></spanx>
1543        <spanx style="strong">| <x:ref>x_bt</x:ref></spanx>
1544        <spanx style="strong">| <x:ref>x_length-of</x:ref></spanx>
1545        <spanx style="strong">| <x:ref>x_ref</x:ref></spanx>
1546        <spanx style="strong">| <x:ref>x_span</x:ref></spanx>
1547        <spanx style="strong">| <x:ref>x_x</x:ref></spanx>)*
1548    }
1549
1550  <spanx># Redefine &lt;c> to allow our extension elements</spanx>
1551  c =
1552    element c {
1553      attlist.c,
1554      (TEXT
1555        | xref
1556        | eref
1557        | iref
1558        | cref
1559        | spanx
1560        <spanx style="strong">| <x:ref>x_ref</x:ref></spanx>)*
1561    }
1562
1563  <spanx># Redefine &lt;cref> to allow more child elements</spanx>
1564  cref =
1565    element cref {
1566      attlist.cref,
1567      (TEXT
1568        | eref)*
1569    }
1570
1571  <spanx># Redefine &lt;list> element to allow &lt;x:<x:ref>lt</x:ref>> child elements</spanx>
1572  \list =
1573    element list {
1574      attlist.list,
1575      (t+ <spanx style="strong">| <x:ref>x_lt</x:ref>+</spanx>)
1576    }   
1577   
1578  <spanx># Redefine &lt;preamble> to allow our extension elements</spanx>
1579  preamble =
1580    element preamble {
1581      attlist.preamble,
1582      (TEXT
1583        | xref
1584        | eref
1585        | iref
1586        | cref
1587        | spanx
1588        <spanx style="strong">| <x:ref>x_anchor-alias</x:ref></spanx>)*
1589    }
1590
1591  <spanx># Redefine &lt;postamble> to allow our extension elements</spanx>
1592  postamble =
1593    element postamble {
1594      attlist.postamble,
1595      (TEXT
1596        | xref
1597        | eref
1598        | iref
1599        | cref
1600        | spanx
1601        <spanx style="strong">| <x:ref>x_bcp14</x:ref></spanx>)*
1602    }
1603
1604  <spanx># Redefine &lt;reference> to allow our extension elements</spanx>
1605  reference =
1606    element reference {
1607      attlist.reference,
1608      front,
1609      seriesInfo*,
1610      format*,
1611      annotation*,
1612      <spanx style="strong"><x:ref>x_source</x:ref>?</spanx>
1613    }
1614
1615  <spanx># Redefine &lt;rfc> to allow our extension elements</spanx>
1616  rfc =
1617    element rfc {
1618      attlist.rfc,
1619      <spanx style="strong"><x:ref>x_link</x:ref>*,</spanx>
1620      <spanx style="strong"><x:ref>x_assign-section-number</x:ref>*,</spanx>
1621      front,
1622      middle,
1623      back?
1624    }
1625
1626  <spanx># Redefine &lt;section> to allow our extension elements</spanx>
1627  section =
1628    element section {
1629      attlist.section,
1630      (t
1631       | figure
1632       | texttable
1633       | iref
1634       | section
1635       <spanx style="strong">| <x:ref>x_anchor-alias</x:ref></spanx>
1636       <spanx style="strong">| <x:ref>x_blockquote</x:ref></spanx>)*
1637    }
1638
1639  <spanx># Redefine &lt;spanx> to allow some markup</spanx>
1640  spanx =
1641    element spanx {
1642      attlist.spanx,
1643      (TEXT
1644        <spanx style="strong">| iref</spanx>
1645        <spanx style="strong">| xref</spanx>
1646        <spanx style="strong">| <x:ref>x_ref</x:ref></spanx>)*
1647    }
1648
1649  <spanx># Redefine &lt;t> to allow our extension elements</spanx>
1650  t =
1651    element t {
1652      attlist.t,
1653      (TEXT
1654       | \list
1655       | figure
1656       | xref
1657       | eref
1658       | iref
1659       | cref
1660       | spanx
1661       | vspace
1662       <spanx style="strong">| <x:ref>x_abnf-char-sequence</x:ref></spanx>
1663       <spanx style="strong">| <x:ref>x_anchor-alias</x:ref></spanx>
1664       <spanx style="strong">| <x:ref>x_bcp14</x:ref></spanx>
1665       <spanx style="strong">| <x:ref>x_dfn</x:ref></spanx>
1666       <spanx style="strong">| <x:ref>x_h</x:ref></spanx>
1667       <spanx style="strong">| <x:ref>x_q</x:ref></spanx>
1668       <spanx style="strong">| <x:ref>x_ref</x:ref></spanx>
1669       <spanx style="strong">| <x:ref>x_sup</x:ref></spanx>)*
1670    }
1671}
1672
1673<spanx># Extend attribute set for &lt;iref> (see <xref target="ext-rfc2629.iref"/>)</spanx>
1674attlist.iref &amp;=
1675  attribute x:for-anchor { ATEXT }?
1676
1677<spanx># Extend attribute set for &lt;list> (see <xref target="ext-rfc2629.list"/>)</spanx>
1678attlist.list &amp;=
1679  attribute x:indent { ATEXT }?
1680
1681<spanx># Extend attribute set for &lt;preamble></spanx>
1682attlist.preamble &amp;=
1683  attribute anchor { xsd:ID }?
1684
1685<spanx># Extend attribute set for &lt;rfc></spanx>
1686attlist.rfc &amp;=
1687  attribute grddl:transformation { ATEXT }?
1688
1689<spanx># Extend attribute set for &lt;section> (see <xref target="ext-rfc2629.section"/>)</spanx>
1690attlist.section &amp;=
1691  attribute x:fixed-section-number { ATEXT }?
1692
1693<spanx># Allow anchor attribute on &lt;spanx></spanx>
1694attlist.spanx &amp;=
1695  attribute anchor { xsd:ID }?
1696
1697<spanx># Extend attribute set for &lt;xref> (see <xref target="ext-rfc2629.xref"/>)</spanx>
1698attlist.xref &amp;=
1699  attribute x:fmt  { "()" | "," | "anchor" | "of" | "number" | "sec" |
1700                     "none" }?,
1701  attribute x:rel  { ATEXT }?,
1702  attribute x:sec  { ATEXT }?
1703
1704<spanx anchor="x_abnf-char-sequence"><iref item="abnf-char-sequence Extension Element"/><iref item="Extension Elements" subitem="abnf-char-sequence"
1705/># Conversion to ABNF char sequence (see <xref target="ext.element.abnf-char-sequence"/>)</spanx>
1706<x:ref>x_abnf-char-sequence</x:ref> =
1707  element x:abnf-char-sequence {
1708    TEXT
1709  }
1710
1711<spanx anchor="x_anchor-alias"><iref item="anchor-alias Extension Element"/><iref item="Extension Elements" subitem="anchor-alias"
1712/># Aliasing of anchors (see <xref target="ext.element.anchor-alias"/>)</spanx>
1713<x:ref>x_anchor-alias</x:ref> =
1714  element x:anchor-alias {
1715    attribute value { TEXT },
1716    empty
1717  }
1718
1719<spanx anchor="x_assign-section-number"><iref item="assign-section-number Extension Element"/><iref item="Extension Elements" subitem="assign-section-number"
1720/># Setting section numbers for internally generated sections
1721# (experimental)</spanx>
1722<x:ref>x_assign-section-number</x:ref> =
1723  element x:assign-section-number {
1724    attribute builtin-target { "authors" },
1725    attribute number { TEXT },
1726    empty
1727  }
1728
1729<spanx anchor="x_bb"><iref item="bb Extension Element"/><iref item="Extension Elements" subitem="bb"
1730/># Bottom line of box drawing (see <xref target="ext.element.bb"/>)</spanx>
1731<x:ref>x_bb</x:ref> =
1732  element x:bb {
1733    (TEXT
1734      | iref
1735      | xref
1736      | <x:ref>x_bb</x:ref>
1737      | <x:ref>x_bc</x:ref>
1738      | <x:ref>x_bt</x:ref>
1739      | <x:ref>x_ref</x:ref>)*
1740  }
1741
1742<spanx anchor="x_bc"><iref item="bc Extension Element"/><iref item="Extension Elements" subitem="bc"
1743/># Center line of box drawing (see <xref target="ext.element.bc"/>)</spanx>
1744<x:ref>x_bc</x:ref> =
1745  element x:bc {
1746    (TEXT
1747      | iref
1748      | xref
1749      | <x:ref>x_bb</x:ref>
1750      | <x:ref>x_bc</x:ref>
1751      | <x:ref>x_bt</x:ref>
1752      | <x:ref>x_ref</x:ref>)*
1753  }
1754
1755<spanx anchor="x_bcp14"><iref item="bcp14 Extension Element"/><iref item="Extension Elements" subitem="bcp14"
1756/># BCP14/RFC2119 keywords (see <xref target="ext.element.bcp14"/>)</spanx>
1757<x:ref>x_bcp14</x:ref> =
1758  element x:bcp14 {
1759    "MAY"
1760    | "MUST"
1761    | "MUST NOT"
1762    | "NOT RECOMMENDED"
1763    | "OPTIONAL"
1764    | "RECOMMENDED"
1765    | "REQUIRED"
1766    | "SHALL"
1767    | "SHALL NOT"
1768    | "SHOULD"
1769    | "SHOULD NOT"
1770  }
1771 
1772<spanx anchor="x_blockquote"><iref item="blockquote Extension Element"/><iref item="Extension Elements" subitem="blockquote"
1773/># Blockquote (see <xref target="ext.element.blockquote"/>)</spanx>
1774<x:ref>x_blockquote</x:ref> =
1775  element x:blockquote {
1776    attribute cite { URI }?,
1777    t+
1778  }
1779
1780<spanx anchor="x_bt"><iref item="bt Extension Element"/><iref item="Extension Elements" subitem="bt"
1781/># Top line of box drawing (see <xref target="ext.element.bt"/>)</spanx>
1782<x:ref>x_bt</x:ref> =
1783  element x:bt {
1784    (TEXT
1785      | iref
1786      | xref
1787      | <x:ref>x_bb</x:ref>
1788      | <x:ref>x_bc</x:ref>
1789      | <x:ref>x_bt</x:ref>
1790      | <x:ref>x_ref</x:ref>)*
1791  }
1792
1793<spanx anchor="x_dfn"><iref item="dfn Extension Element"/><iref item="Extension Elements" subitem="dfn"
1794/># Definition (see <xref target="ext.element.dfn"/>)</spanx>
1795<x:ref>x_dfn</x:ref> =
1796  element x:dfn {
1797    (TEXT
1798      | iref)*
1799  }
1800 
1801<spanx anchor="x_h"><iref item="h Extension Element"/><iref item="Extension Elements" subitem="h"
1802/># Heading (see <xref target="ext.element.h"/>)</spanx>
1803<x:ref>x_h</x:ref> =
1804  element x:h {
1805    TEXT
1806  }
1807
1808<spanx anchor="x_length-of"><iref item="length-of Extension Element"/><iref item="Extension Elements" subitem="length-of"
1809/># Length Measurement (see <xref target="ext.element.length-of"/>)</spanx>
1810<x:ref>x_length-of</x:ref> =
1811  element x:length-of {
1812    attribute indented { NUMBER }?,
1813    attribute target { xsd:IDREF },
1814    empty
1815  }
1816
1817<spanx anchor="x_link"><iref item="link Extension Element"/><iref item="Extension Elements" subitem="link"
1818/># Link (see <xref target="ext.element.link"/>)</spanx>
1819<x:ref>x_link</x:ref> =
1820  element x:link {
1821    attribute href { URI },
1822    attribute title { TEXT }?,
1823    attribute rel { TEXT },
1824    empty
1825  }
1826 
1827<spanx anchor="x_lt"><iref item="lt Extension Element"/><iref item="Extension Elements" subitem="lt"
1828/># Extended list item (see <xref target="ext.element.lt"/>)</spanx>
1829<x:ref>x_lt</x:ref> =
1830  element x:lt {
1831    attribute anchor { xsd:ID }?,
1832    attribute hangText { TEXT }?,
1833    t+
1834  }
1835
1836<spanx anchor="x_q"><iref item="q Extension Element"/><iref item="Extension Elements" subitem="q"
1837/># Inline quote (see <xref target="ext.element.q"/>)</spanx>
1838<x:ref>x_q</x:ref> =
1839  element x:q {
1840    TEXT
1841  }
1842
1843<spanx anchor="x_ref"><iref item="ref Extension Element"/><iref item="Extension Elements" subitem="ref"
1844/># Anchor reference (see <xref target="ext.element.ref"/>)</spanx> 
1845<x:ref>x_ref</x:ref> =
1846  element x:ref {
1847    TEXT
1848  }
1849
1850<spanx anchor="x_source"><iref item="source Extension Element"/><iref item="Extension Elements" subitem="source"
1851/># source information (see <xref target="ext.element.source"/>)</spanx> 
1852<x:ref>x_source</x:ref> =
1853  element x:source {
1854    attribute basename { ATEXT }?,
1855    attribute href { URI },
1856    empty
1857  }
1858
1859<spanx anchor="x_sup"><iref item="sup Extension Element"/><iref item="Extension Elements" subitem="sup"
1860/># superscript (see <xref target="ext.element.sup"/>)</spanx>
1861<x:ref>x_sup</x:ref> =
1862  element x:sup {
1863    TEXT
1864  }
1865
1866<spanx anchor="x_span"><iref item="span Extension Element"/><iref item="Extension Elements" subitem="span"
1867/># Inline Span <!--(see <xref target="ext.element.span"/>)--></spanx>
1868<x:ref>x_span</x:ref> =
1869  element x:span {
1870    attribute anchor { xsd:ID }?,
1871    TEXT
1872  }
1873
1874<spanx anchor="x_x"><iref item="x Extension Element"/><iref item="Extension Elements" subitem="x"
1875/># Nop (for alignment in source)</spanx>
1876<x:ref>x_x</x:ref> =
1877  element x:x {
1878    empty
1879  }
1880</artwork></figure>
1881  </section>
1882 
1883  <section title="Implementation Notes">
1884 
1885  <section title="Recognized type attributes for &lt;artwork> element">
1886  <t>
1887    Specific values in the &lt;artwork> element's "type" attribute are
1888    recognized and cause a different visual style to be used:
1889  </t>
1890  <texttable>
1891    <ttcol>Media Type</ttcol>
1892    <ttcol>Comment</ttcol>
1893   
1894    <c>abnf</c><c>ABNF as per <xref target="RFC5234"/></c>
1895    <c>abnf2616</c><c>ABNF as per <xref target="RFC2616" x:fmt="," x:sec="2.1" /></c>
1896    <c>application/relax-ng-compact-syntax</c><c>Relax NG Compact Syntax as per <xref target="RNC"/></c>
1897    <c>application/xml-dtd</c><c>XML DTD</c>
1898    <c>message/http; msgtype="request"</c><c>HTTP message, as per <xref target="RFC2616" x:fmt="," x:sec="19.1" /></c>
1899    <c>message/http; msgtype="response"</c><c>HTTP message, as per <xref target="RFC2616" x:fmt="," x:sec="19.1" /></c>
1900  </texttable>
1901  </section>
1902 
1903  </section>
1904 
1905  <section title="License" anchor="license">
1906  <t>
1907Copyright (c) 2006-2008, Julian Reschke (julian.reschke@greenbytes.de)
1908  </t>
1909  <t>
1910All rights reserved.
1911  </t>
1912  <t>
1913Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1914  <list style="symbols">
1915    <t>Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.</t>
1916    <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>
1917    <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>
1918  </list>
1919  </t>
1920  <t>
1921THIS 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.
1922  </t>
1923  </section>
1924
1925  <section title="Change Logs">
1926   
1927 
1928    <section title="Package">
1929      <t><list style="hanging">
1930<t hangText="2006-01-01">
1931    Switch to BSD License.
1932</t>
1933<t hangText="2007-01-12">
1934    Update to xml2rfc v1.33pre2.
1935</t>
1936<t hangText="2007-03-31">
1937    Update to xml2rfc v1.33pre3.
1938</t>
1939<t hangText="2007-05-01">
1940    Add XSLT test cases.
1941</t>
1942      </list></t>
1943    </section>
1944   
1945    <section title="amazon-asin.xslt">
1946    <t><list style="hanging">
1947<t hangText="2003-11-16">
1948     Initial release.
1949</t>
1950<t hangText="2005-04-02">
1951     Fix two DTD issues.
1952</t>
1953    </list></t>
1954    </section>
1955
1956    <section title="check-references.xslt">
1957    <t><list style="hanging">
1958<t hangText="2003-11-16">
1959     Initial release.
1960</t>
1961<t hangText="2003-11-16">
1962     Initial release.
1963</t>
1964<t hangText="2004-05-11">
1965     Add document status; print references type.
1966</t>
1967<t hangText="2005-01-01">
1968     Add experimental check for ID status.
1969</t>
1970<t hangText="2005-04-01">
1971     Add fixes from Bill Fenner.
1972</t>
1973<t hangText="2005-12-03">
1974    Add checks against local copy of <eref target="http://www.w3.org/2002/01/tr-automation/tr.rdf"/>
1975</t>
1976<t hangText="2006-07-22">
1977    Add checks for standards levels.
1978</t>
1979<t hangText="2006-08-06">
1980    "check-ietf-references.xslt" replaced by "check-references.xslt".
1981</t>
1982<t hangText="2007-01-04">
1983    Use information online at <eref target="http://tools.ietf.org/"/> to
1984    retrieve Internet-Draft status information.
1985</t>
1986<t hangText="2007-06-16">
1987    Fix bug looking up ref type when inside change markup.
1988</t>
1989<t hangText="2008-06-14">
1990    Enhance output when draft was updated, and then published as RFC.
1991</t>
1992    </list></t>
1993    </section>
1994   
1995    <section title="gen-reference-graph.xslt">
1996    <t><list style="hanging">
1997<t hangText="2006-09-03">
1998  New.
1999</t>
2000<t hangText="2007-06-07">
2001  Use <eref target="http://dpcarlisle.blogspot.com/2007/05/exslt-node-set-function.html">Carlisle method</eref> to define exslt:node-set in
2002  msxsml (which means that the stylesheet can now be used with MSXML as well).
2003</t>
2004<t hangText="2007-10-15">
2005  Use W3C data from tr.rdf as well (experimental).
2006</t>
2007    </list></t>
2008    </section>
2009
2010    <section title="rfc2629.xslt">
2011      <t><list style="hanging">
2012<t hangText="2001-03-28">
2013    Code rearranged, generate numbered section anchors for paragraphs (t)
2014    as well. Fixes in index handling.
2015</t>
2016<t hangText="2001-04-12">
2017    Moved HTML output into XHTML namespace.
2018</t>
2019<t hangText="2001-10-02">
2020    Fixed default location for RFCs and numbering of section references.
2021    Support ?rfc editing processing instruction.
2022</t>
2023<t hangText="2001-10-07">
2024    Made telephone number links active.
2025</t>
2026<t hangText="2001-10-08">
2027    Support for vspace element.
2028</t>
2029<t hangText="2001-10-09">
2030    Experimental support for rfc-issue PI.
2031</t>
2032<t hangText="2001-11-11">
2033    Support rfc private PI. Removed bogus code reporting the WG in the header.
2034</t>
2035<t hangText="2001-11-11">
2036    Support rfc private PI. Removed bogus code reporting the WG in the header.
2037</t>
2038<t hangText="2001-12-17">
2039    Support title attribute on references element
2040</t>
2041<t hangText="2002-01-05">
2042    Support for list/@style="@format"
2043</t>
2044<t hangText="2002-01-09">
2045    Display "closed" RFC issues as deleted
2046</t>
2047<t hangText="2002-01-14">
2048    Experimentally and optionally parse XML encountered in artwork elements
2049    (requires MSXSL).
2050</t>
2051<t hangText="2002-01-27">
2052    Some cleanup. Moved RFC issues from PIs into namespaced elements.
2053</t>
2054<t hangText="2002-01-29">
2055    Added support for sortrefs PI. Added support for figure names.
2056</t>
2057<t hangText="2002-02-07">
2058    Highlight parts of artwork which are too wide (72 characters).
2059</t>
2060<t hangText="2002-02-12">
2061    Code rearrangement for static texts. Fixes for section numbering.
2062    TOC generation rewritten.
2063</t>
2064<t hangText="2002-02-15">
2065    Support for irefs in sections; support iref @primary=true
2066</t>
2067<t hangText="2002-03-03">
2068    Moved anchor prefix into a constant. Added sanity checks on user anchor
2069    names.
2070</t>
2071<t hangText="2002-03-23">
2072    Bugfix in detection of matching org names when creating the header. Fixed
2073    sorting in subitems.
2074</t>
2075<t hangText="2002-04-02">
2076    Fix TOC link HTML generation when no TOC is generated (created broken
2077    HTML table code).
2078</t>
2079<t hangText="2002-04-03">
2080    Made rendering of references more tolerant re: missing parts.
2081</t>
2082<t hangText="2002-04-08">
2083    Fixed reference numbering when references are split into separate sections.
2084</t>
2085<t hangText="2002-04-16">
2086    Fix default namespace (shouldn't be set for HTML output method).
2087</t>
2088<t hangText="2002-04-19">
2089    Lowercase internal CSS selectors for Mozilla compliance. Do not put TOC
2090    into ul element.
2091</t>
2092<t hangText="2002-04-21">
2093    Make numbered list inside numbered lists use alphanumeric numbering.
2094</t>
2095<t hangText="2002-05-05">
2096    Updated issue/editing support.
2097</t>
2098<t hangText="2002-05-15">
2099    Bugfix for section numbering after introduction of ed:replace
2100</t>
2101<t hangText="2002-06-21">
2102    When producing private documents, do not include document status, copyright etc.
2103</t>
2104<t hangText="2002-07-08">
2105    Fix xrefs to Appendices.
2106</t>
2107<t hangText="2002-07-19">
2108    Make artwork lightyellow for easier reading. (fielding)
2109</t>
2110<t hangText="2002-10-09">
2111    Translate references title to anchor name to avoid non-uri characters. (fielding)
2112</t>
2113<t hangText="2002-10-13">
2114    Support for tocdepth PI.
2115</t>
2116<t hangText="2002-11-03">
2117    Added temporariry workaround for Mozilla/Transformiix result tree fragment problem.
2118    (search for 'http://bugzilla.mozilla.org/show_bug.cgi?id=143668')
2119</t>
2120<t hangText="2002-12-25">
2121    xref code: attempt to uppercase "section" and "appendix" when at the start
2122    of a sentence.
2123</t>
2124<t hangText="2003-02-02">
2125    fixed code for vspace blankLines="0", enhanced display for list with "format" style,
2126    got rid of HTML blockquote elements, added support for "hangIndent"
2127</t>
2128<t hangText="2003-04-10">
2129    experimental support for appendix and spanx elements
2130</t>
2131<t hangText="2003-04-19">
2132    fixed counting of list numbers in "format %" styles (one counter
2133    per unique format string). Added more spanx styles.
2134</t>
2135<t hangText="2003-05-02">
2136    experimental texttable support
2137</t>
2138<t hangText="2003-05-02">
2139    Make mailto links optional (default = none) (jre: default and PI name changed) (fielding)
2140</t>
2141<t hangText="2003-05-04">
2142    experimental support for HTML link elements; fix default for table header
2143    alignment default
2144</t>
2145<t hangText="2003-05-06">
2146    support for "background" PI.
2147</t>
2148<t hangText="2003-05-11">
2149    change %c format to lowercase alphabetic. add support for keyword
2150    elements (generate META tag). fix various HTML conformance problems.
2151    added experimental support for role attribute. do not number paragraphs
2152    in unnumbered sections. update boilerplate texts. support for
2153    "iprnotified" PI. bugfix list numbering. strip whitespace when
2154    building tel: URIs.
2155</t>
2156<t hangText="2003-05-12">
2157    more conformance fixes (layout moved into CSS, move lists and figures
2158    out of para content, do not use tables for list formatting)
2159</t>
2160<t hangText="2003-05-13">
2161    add DC.Creator meta tag, refactoring
2162</t>
2163<t hangText="2003-05-16">
2164    put nbsps between "section" and section number (xref).
2165</t>
2166<t hangText="2003-05-18">
2167    author summary: add missing comma.
2168</t>
2169<t hangText="2003-06-06">
2170    fix index generation bug (transposed characters in key generation). Enhance
2171    sentence start detection (xref starting a section was using lowercase
2172    "section").
2173</t>
2174<t hangText="2003-06-22">
2175    exp. support for xref/@format. Add missing support for eref w/o content.
2176    exp. support for annotations in reference elements. Code cleanup
2177    reference table formatting.
2178</t>
2179<t hangText="2003-07-09">
2180    Another fix for DC.Creator meta tag creation based on RFC2731
2181</t>
2182<t hangText="2003-07-24">
2183    Fix namespace name for DC.Creator.
2184</t>
2185<t hangText="2003-08-06">
2186    Cleanup node-set support (only use exslt (saxon, xalan, libxslt) extension
2187    functions; remove Transformix workarounds that stopped to work in Moz 1.4)
2188</t>
2189<t hangText="2003-08-09">
2190    Generate HTML lang tag.
2191</t>
2192<t hangText="2003-08-10">
2193    Map spanx/verb to HTML "samp" element. Fix author name display in
2194    references (reverse surname/initials for last author), add "Ed.".
2195    Fix internal bookmark generation.
2196</t>
2197<t hangText="2003-08-17">
2198    Add DCMI dates, identifiers and abstract. Add PI to suppress DCMI
2199    generation.  Do not add TOC entry to Copyright Statement when there is
2200    none. Align RFC2629 PI names and parameter names. Change style for
2201    inline URIs generated by eref. Add header and footer support.
2202    Enhance CSS paging properties. Support topblock PI. Added hooks for
2203    proper XHTML generation through separate XSLT. Enhance warning and
2204    error messages. Add support for artwork image display. Table formatting
2205    fixes (borders, thead continuation).
2206</t>
2207<t hangText="2003-08-18">
2208    Add workaround for MSXML4 node-set and Mozilla node-set issues (fallback
2209    just displays are warning).
2210</t>
2211<t hangText="2003-10-06">
2212    Add workaround for broken pre/ins handling in Mozilla
2213    (see <eref target="http://bugzilla.mozilla.org/show_bug.cgi?id=204401"/>). Make use
2214    of cite attribute on ed:replace. CSS cleanup.
2215</t>
2216<t hangText="2003-10-08">
2217    Fix minor issue detecting the same org for the header (caused by IE's
2218    non-standard whitespace handling). Fix default handling for /rfc/@category.
2219</t>
2220<t hangText="2003-11-09">
2221    Inherit ed:entered-by from ancestor elements. Change CSS color for inserted
2222    text to green. Generate issues-list anchor. Do not complain about missing
2223    targets when the xref element is below ed:del. Remove code that attempted
2224    to distinguish section/Section when producing links - always use
2225    uppercase. Fix date rendering for issue resolutions.
2226</t>
2227<t hangText="2003-11-29">
2228    Fix color values for table backgrounds for issue rendering. Change
2229    rendering of issue links to use inline-styles. Add colored issue markers to
2230    issues.
2231</t>
2232<t hangText="2003-12-13">
2233    Fix inheritance of ed:entered-by attribute. Display note elements inside
2234    change tracking as well.
2235</t>
2236<t hangText="2004-01-18">
2237    When PI compact = 'yes', make most CSS print page breaks conditional.
2238</t>
2239<t hangText="2004-02-20">
2240    Support for RFC3667 IPR changes (xml2rfc 1.22); see
2241    <eref target="http://lists.xml.resource.org/pipermail/xml2rfc/2004-February/001088.html"/>.
2242</t>
2243<t hangText="2004-03-11">
2244    Add "(if approved)" to "updates" and "obsoletes" unless the document has
2245    an RFC number.
2246</t>
2247<t hangText="2004-04-01">
2248    Fix RFC3667 output, see <eref target="http://lists.xml.resource.org/pipermail/xml2rfc/2004-April/001208.html"/>.
2249</t>
2250<t hangText="2004-04-04">
2251    Add support for section/top attribute. Move references into plain
2252    section container.
2253</t>
2254<t hangText="2004-04-06">
2255    Do not emit identical para anchors for deleted content.
2256</t>
2257<t hangText="2004-04-14">
2258    Fix references TOC generation when there are no references.
2259</t>
2260<t hangText="2004-04-24">
2261    Fix RFC3667 output, see <eref target="http://xml.resource.org/pipermail/xml2rfc/2004-April/001246.html"/>.
2262</t>
2263<t hangText="2004-05-09">
2264    Add custom support for generating compound index documents. Add anchors
2265    for each Index letter. Add experimental cref support. Fix conditional page
2266    breaks before References section.
2267</t>
2268<t hangText="2004-05-16">
2269    Refactor external index generation.
2270</t>
2271<t hangText="2004-05-20">
2272    Rewrite anchor generation for comments.
2273</t>
2274<t hangText="2004-05-22">
2275    Enhance issues rendering (add links to changes).
2276</t>
2277<t hangText="2004-05-30">
2278    Allow single quote as delimiter in processing instructions as well. Move
2279    block-level issue pointers to floats. Disable issue pointers for print
2280    media. Add "purple numbers". Add hrefs to section headings. Add non-printing
2281    index key letter list to start of index.
2282</t>
2283<t hangText="2004-06-01">
2284    Use &amp;#xb6; instead of # for PNs.
2285</t>
2286<t hangText="2004-07-18">
2287    Add support for list style=letters (thanks Roy F.). Make PNs optional;
2288    add new PI.
2289</t>
2290<t hangText="2004-09-05">
2291    Fix index links into unnumbered sections.  Bring IPR boilerplate in-line
2292    with xml2rfc 1.25.  Add experimental CSS3 paged media support.  Various
2293    HTML fixes.
2294</t>
2295<t hangText="2004-09-21">
2296    Enhance checking of artwork width.
2297</t>
2298<t hangText="2004-09-26">
2299    Add check for unused references. Uppercase letters in list style letters
2300    when nested into another list.
2301</t>
2302<t hangText="2004-10-10">
2303    Fix internal change track pointers.
2304</t>
2305<t hangText="2004-11-01">
2306    Allow change tracking on references (as a whole).  Rewrite artwork handling
2307    so that it allows change tracking inside artwork.  Also allow a subset of
2308    text markup inside artwork, such as xrefs (note this requires post-processing
2309    the source to make it compliant to RFC2629bis).
2310</t>
2311<t hangText="2004-11-03">
2312    Enhanced placement of iref anchors.
2313</t>
2314<t hangText="2004-11-06">
2315    Index: display irefs that appeared (with primary=true) inside artwork elements
2316    in a monospaced font.
2317</t>
2318<t hangText="2004-11-14">
2319    Add special code so that changes in section titles can be change-tracked.
2320</t>
2321<t hangText="2005-01-14">
2322    Bugfixes for HtmlToXhtml converter.
2323</t>
2324<t hangText="2005-01-22">
2325    Enhance generation of HTML h* elements (for Mozilla Outliner).
2326</t>
2327<t hangText="2005-01-31">
2328    Put vertical space around top-level TOC entries in TOC.  Switch to
2329    pt-based CSS. Re-arrange top section. Make hr elements reflect new-page
2330    settings in TXT output (compact-PI).  Fix page number in footer (CSS
2331    print) and add some more experimental support for paged media (tested
2332    with Prince 4.1 alpha).  Rewrite TOC and Index generation to generate HTML
2333    lists.  Cleanup id generation for paragraphs.  Reduce whitespace in output.
2334    Fix vspace implementation. Use right/left dqoutes and copyright sign
2335    where appropriate.
2336</t>
2337<t hangText="2005-02-04">
2338    Add &lt;link> element to references section.  Fix newly introduced bug
2339    in references processing.
2340</t>
2341<t hangText="2005-02-05">
2342    Integrate various fixes/enhancements by Roy Fielding: spelling of
2343    "Authors' Addresses", comma setting in references, position of "Authors"
2344    section, optionally place authors addresses at end (PI), trailing dots
2345    in section numbers, switch to verdana default font in CSS.  Add
2346    experimental support for centered artwork.
2347</t>
2348<t hangText="2005-02-09">
2349    Fixes in spacing and links of references section titles.  Enhance sorting
2350    in references when change tracking is in place.  Re-add figure centering
2351    support.  Add missing 2nd part of "Author's Adresses" fix.
2352</t>
2353<t hangText="2005-02-25">
2354    Align section number format with xml2rfc1.29.
2355</t>
2356<t hangText="2005-03-28">
2357    Get rid of table elements in Author's section.  Add experimental hCard
2358    (<eref target="http://developers.technorati.com/wiki/hCard"/>) support.
2359</t>
2360<t hangText="2005-04-03">
2361    Add RFC3978-style IPR statement support. (fenner@research.att.com)
2362</t>
2363<t hangText="2005-04-11">
2364    Cleanup author display. hCard related fixes.
2365</t>
2366<t hangText="2005-05-07">
2367    Minor fixes to allow change tracking in doc title.  Add experimental
2368    support for table border styles. CSS cleanup.
2369</t>
2370<t hangText="2005-06-18">
2371    Implement missing support for references to texttables.
2372</t>
2373<t hangText="2005-09-25">
2374    Use (-moz-)column-count when printing the index.
2375</t>
2376<t hangText="2005-10-04">
2377    Report missing element templates with xsl:message.
2378</t>
2379<t hangText="2005-10-15">
2380    Process t/@anchor.
2381</t>
2382<t hangText="2005-10-23">
2383    More workarounds for Mozilla's broken del/ins handling (this time for
2384    figures).
2385</t>
2386<t hangText="2005-10-27">
2387    lowercase hCard class names
2388</t>
2389<t hangText="2005-11-22">
2390    Enhance diagnostics for XML-in-artwork extension
2391</t>
2392<t hangText="2005-11-26">
2393    Fix formatting of section numbers for sections inserted into &lt;back>.
2394</t>
2395<t hangText="2005-12-12">
2396    Fix some validity problems when change tracking occured inside lists.
2397</t>
2398<t hangText="2005-12-18">
2399    Add change tracking inside the index.
2400</t>
2401<t hangText="2006-02-04">
2402    Add prev/next links to highlighted changes (change tracking extension).
2403</t>
2404<t hangText="2006-02-10">
2405    Catch errors instantiating MSXML component.
2406</t>
2407<t hangText="2006-02-11">
2408    References: add "work in progress" for Internet Drafts.
2409</t>
2410<t hangText="2006-02-27">
2411    Fix front matter (lowercase Internet-Draft, say "Intended status" for
2412    non-RFC documents). Start work on experimental extension for 
2413    simplified internal links.
2414</t>
2415<t hangText="2006-03-19">
2416    Tweaks to IESG Copyright stuff; support submissionType attribute.
2417    Fix duplicate reference anchors in HTML output.  Reduce HTML Tidy warnings.
2418    Fix reference to normative ASCII version (now requires trailing ".txt").
2419    Tweaks to hCard generation.  Started to move non-issue-tracking
2420    extensions into namespace "http://purl.org/net/xml2rfc/ext".
2421</t>
2422<t hangText="2006-03-27">
2423    Moved "simple reference" extension into namespace "http://purl.org/net/xml2rfc/ext"
2424    and add documentation.  HTML conformance enhancements.
2425</t>
2426<t hangText="2006-04-02">
2427    Cleanup special code for automated XHTML XSLT generation.
2428</t>
2429<t hangText="2006-04-21">
2430    Generate &lt;CITE> elements where appropiate.
2431    Introduce x:blockquote, x:dfn, x:h and x:q elements.
2432</t>
2433<t hangText="2006-05-06">
2434    Introduce x:bcp14 element.
2435</t>
2436<t hangText="2006-05-14">
2437  Fix content model for x:blockquote.
2438</t>
2439<t hangText="2006-06-18">
2440  Add box drawing support (x:bt, x:bc, x:bb).
2441</t>
2442<t hangText="2006-06-20">
2443  HTML validity fixes (legal chars in anchors in index).
2444</t>
2445<t hangText="2006-06-24">
2446  Reduce leading empty lines in artwork. Move &lt;dt> style info into CSS.
2447</t>
2448<t hangText="2006-07-14">
2449  Fix rendering of multiple street address entries (missing line break).
2450</t>
2451<t hangText="2006-07-24">
2452  Add extension for deep linking into RFCs, do not generate empty list
2453  items in TOC output, avoid empty &lt;dt> elements for list items
2454  without hangText attribute.
2455</t>
2456<t hangText="2006-08-01">
2457  Allow @anchor on more elements; start work on Relax NG grammar for
2458  extensions. Reduce generated style elements (use CSS classes instead).
2459  Consistently use "id" instead of "name". Change default target for RFC
2460  links to "http://tools.ietf.org/html/rfcNNNN".
2461</t>
2462<t hangText="2006-08-06">
2463  Include appendices defined in &lt;appendix> elements in TOC (please
2464  consider them deprecated anyhow!). Generate links to
2465  "http://tools.ietf.org/html/draft-*" for Internet Drafts.
2466  Replace x:frag by x:rel, allowing any kind of relative reference instead
2467  of just fragments.
2468</t>
2469<t hangText="2006-08-30">
2470  Reduce textual differences between HTML output and what xml2rfc produces
2471  in TXT output mode (section refs/reference targets). Add small workaround
2472  for Opera 9.0.1's problem with node-set().
2473</t>
2474<t hangText="2006-10-29">
2475  Fix problem generating internal links to change markup within references
2476  section. Enhancements when generating numbered references for deleted
2477  references.
2478  Allow inclusion of references into the index (through include-references-in-index
2479  extension).
2480  Fix a bug that caused the newer version of the IETF boilerplate to be
2481  produced rather than the pre-RFC3667 one.
2482  Update to RFC4287 boilerplate.
2483</t>
2484<t hangText="2006-11-11">
2485  Add extension attribute x:for-anchor to &lt;iref&gt; handling.
2486</t>
2487<t hangText="2006-11-26">
2488  Experimental (and limited) support for &lt;x:lt&gt;.
2489</t>
2490<t hangText="2006-12-04">
2491  Fix bugs in processing documents that have both the ipr and the number attribute
2492  set on the rfc root element. Add support for x:fmt='none' on xrefs.
2493  Add different pre style based on artwork type attributes (experimental).
2494</t>
2495<t hangText="2006-12-13">
2496  Add x:fmt='anchor' for xref elements.
2497</t>
2498<t hangText="2007-01-07">
2499  Fix root template for compatibility for the exslt:node-set implementation
2500  in Firefox3.
2501</t>
2502<t hangText="2007-01-29">
2503  Avoid empty table entry in front matter when organization is not specified
2504  for an author.
2505</t>
2506<t hangText="2007-02-10">
2507  Allow change tracking in table rows.
2508</t>
2509<t hangText="2007-03-09">
2510  Add hcard profile URI (<eref target="http://www.w3.org/2006/03/hcard"/>) to head element.
2511  Add warning for misplaced &lt;t> elements (after section).
2512</t>
2513<t hangText="2007-03-21">
2514  Fix internal linking from reference entries in index for some xref types.
2515  Minor CSS tweaks contributed by MTR. Allow turning on text justification through
2516  a PI. Improve iref anchor generation to generate less instable anchors.
2517</t>
2518<t hangText="2007-03-28">
2519  Fixes for numbering of ed:inserted references sections.
2520</t>
2521<t hangText="2007-05-04">
2522  Do not generate anchors for edits in deleted sections. Enhance HTML
2523  conformance.
2524</t>
2525<t hangText="2007-05-19">
2526  Enhance diagnostics when using Saxon (needs Saxon's "-l" command line
2527  parameter to keep line number information). Add warning when symref PI
2528  is missing (default will change in the future).
2529  Add support for overriding computed section numbers (when formatting
2530  historic documents).
2531</t>
2532<t hangText="2007-06-07">
2533  Change default for symrefs PI to "yes" (see change in xml2rfc 1.33pre4).
2534  Warn about docName attributes that appear to contain a file extension.
2535</t>
2536<t hangText="2007-06-26">
2537  Workaround author/@initials values without trailing dot, as in xml2rfc.tcl.
2538</t>
2539<t hangText="2007-07-14">
2540  Enhance index generation for references that use @x:sec attribute.
2541</t>
2542<t hangText="2007-09-09">
2543  Fix: sortrefs is a nop when symrefs=no.
2544</t>
2545<t hangText="2007-10-17">
2546  Work in progress: add support for referencing sections in sibling
2547  documents by anchor name.
2548</t>
2549<t hangText="2007-10-17">
2550  Work in progress (continued): support for referencing sections in sibling
2551  documents by anchor name.
2552</t>
2553<t hangText="2007-12-31">
2554  Emit warning when updating/obsoleting stuff that's not referenced.
2555</t>
2556<t hangText="2008-02-03">
2557  Support xml2rfc-1.33pre5's suppress-title attribute on texttable and figure.
2558</t>
2559<t hangText="2008-02-06">
2560  Extension: allow &lt;eref> below &lt;cref>.
2561</t>
2562<t hangText="2008-02-17">
2563  Extensions: add x:span and x:length-of.
2564</t>
2565<t hangText="2008-02-20">
2566  Add new RFC boilerplate (as changed in 2007-08).
2567</t>
2568<t hangText="2008-02-27">
2569  Improve diagnostics for artwork width problems; add defaulting of publication
2570  dates (requires XSLT processor supporting exslt:date, or msxml).
2571</t>
2572<t hangText="2008-02-29">
2573  Enhance CSS for link elements in the front header, update rules for
2574  generating "Acknowledgment" statement.
2575</t>
2576<t hangText="2008-03-01">
2577  Use line numbers in diagnostics in Saxon8/9 as well.
2578</t>
2579<t hangText="2008-03-02">
2580  Fix a bug in the logic choosing the boilerplate, resulting in obsolete
2581  text being inserted into IDs.
2582</t>
2583<t hangText="2008-04-01">
2584  Add support for superscript element.
2585</t>
2586<t hangText="2008-06-28">
2587  Add sanity checks for email addresses, allow multiple email elements.
2588</t>
2589<t hangText="2008-07-06">
2590  Add x:abnf-char-sequence.
2591</t>
2592      </list></t>
2593    </section>
2594    <section title="rfc2629toFO.xslt">
2595      <t><list style="hanging">
2596<t hangText="2003-11-16">
2597    Initial release.
2598</t>
2599<t hangText="2003-11-29">
2600    Enhance handling of unknown list styles.
2601</t>
2602<t hangText="2004-04-04">
2603    Update reference section handling.
2604</t>
2605<t hangText="2004-04-17">
2606    Use XSL-WD-1.1-style fo:bookmark and index handling and add postprocessors for
2607    existing implementations. Unify PDF info generation by using XEP (postprocessors)
2608    will convert.
2609</t>
2610<t hangText="2004-04-20">
2611    Add experimental cref support.
2612</t>
2613<t hangText="2004-06-14">
2614    Set correct index-item defaults.
2615</t>
2616<t hangText="2004-07-18">
2617    Add list style=letters.
2618</t>
2619<t hangText="2004-09-03">
2620    Make URLs in text break where they are allowed to break by inserting
2621    zero-width spaces.
2622</t>
2623<t hangText="2004-09-26">
2624    Fix letter-style inside nested lists.
2625</t>
2626<t hangText="2004-10-31">
2627    Update handling of artwork.
2628</t>
2629<t hangText="2004-11-13">
2630    Fix handling of references inside ed:* markup.  Fix whitespace handling
2631    in artwork.
2632</t>
2633<t hangText="2004-11-27">
2634    Irefs in artwork generate monospaced entries in index.
2635</t>
2636<t hangText="2005-01-31">
2637    Fix TOC generation that was broken after changes in main XSLT.
2638</t>
2639<t hangText="2005-02-05">
2640    Bring in sync with cosmetic changes in rfc2629.xslt.
2641</t>
2642<t hangText="2005-05-07">
2643    Minor fix for change tracking in document title.  Support for table
2644    styles.
2645</t>
2646<t hangText="2005-06-18">
2647    Fix references to tables.
2648</t>
2649<t hangText="2005-10-15">
2650    Process t/@anchor.
2651</t>
2652<t hangText="2006-02-11">
2653    References: add "work in progress" for Internet Drafts.
2654</t>
2655<t hangText="2006-06-02">
2656    Use XSL 1.1 WD Feb 2006.
2657</t>
2658<t hangText="2007-03-21">
2659    Support optional text justification.
2660</t>
2661<t hangText="2007-05-19">
2662    Various improvements in spacing; also allow overriding the automatic
2663    list indentation via list/x:indent.
2664</t>
2665     </list></t>
2666    </section>
2667
2668    <section title="xsl11toAn.xslt">
2669    <t><list style="hanging">
2670<t hangText="2004-05-17">
2671     Initial release.
2672</t>
2673<t hangText="2006-06-02">
2674    Use XSL 1.1 WD Feb 2006.
2675</t>
2676    </list></t>
2677    </section>
2678
2679    <section title="xsl11toFop.xslt">
2680    <t><list style="hanging">
2681<t hangText="2004-05-17">
2682     Initial release.
2683</t>
2684<t hangText="2006-06-02">
2685    Use XSL 1.1 WD Feb 2006.
2686</t>
2687    </list></t>
2688    </section>
2689
2690    <section title="xsl11toFop-0.93.xslt">
2691    <t><list style="hanging">
2692<t hangText="2008-03-15">
2693    Add a workaround to the fo:inline workaround (sigh).
2694</t>
2695    </list></t>
2696    </section>
2697
2698    <section title="xsl11toXep.xslt">
2699    <t><list style="hanging">
2700<t hangText="2004-05-17">
2701     Initial release.
2702</t>
2703<t hangText="2004-09-04">
2704     Fix xep:index-item attributes.
2705</t>
2706<t hangText="2006-06-02">
2707    Use XSL 1.1 WD Feb 2006.
2708</t>
2709    </list></t>
2710    </section>
2711  </section>
2712
2713</back>
2714</rfc>
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