xml2rfc (2.47.0) ietf; urgency=medium

  **CSS fixes, Built-in documentation, manpage mode, and more**

  The major feature in this release is the addition of built-in documentation
  generated from:

   - the actual XML schema distributed with the tool
   - the differences between the current schema and the RFC7991 schema
   - the code's settings for which elements and attributes are deprecated
   - text snippets describing the schema parts and how the code handles them.

  There are new --doc/--docfile and --man/--manpage switches; the first will
  generate documentation in the form of a v3 XML document that can then itself
  be processed to generate the various supported formats. The second, --man,
  will generate the documentation XML internally and then process it to text
  output which is shown with a pager, like 'man'.

  From the commit log:

  * Corrected the CSS line height of compact lists (it should not be different
    than for non-compact lists; compact should only affect spacing between
    items, not line height).  Also corrected the CSS top margin for nested
    lists; extra top margin is desired for a top-level list, but not when
    nesting them, due to the resulting inconsistency in apparent line height
    variations.

  * Changed <section> within <toc> from oneOrMore to zeroOrMore, in order to
    make it possible to honour the tocInclude setting, and reordered some
    true/false entries for consistency, and changed the line breaking of some
    lines in the RNG compact representation to fit on 72-character lines.

  * Added .rng and .rnc files with the RFC7991 schema, in order to be able to
    automatically determine which elements and attributes are new in the schema
    since 7991.

  * Added a new writer, 'doc', and template and text snippet files for 
    autogenerated documentation.

  * Updated the requirements file with some new module requirements.

  * Refactured the code a bit to make it more straightforward to generate 
    text without writing it out to file.

  * Moved the list of deprecated attributes to writers/base.py, and did some
    slight refactoring for consistent naming of some class variables and
    avoidance of duplicate parsing of the schema file.

  * Did some minor code cleanup and dead code removal, and corrected the 
    header generation for non-IETF documents (using <rfc ipr=''>).

  * Fixed an issue where XML parser errors could be reported for '<string>' 
    instead of the actual input file name.

  * Added new options --docfile/--doc and --manpage/--man, used to trigger
    generation and display of the built-in documentation.  Reorganised the
    option grouping.  Updated some option help strings.  Made it possible to
    propagate all command-line option information to the documentation template.

  * Corrected the default templates path.  This is related to change [3723].

  * Reverted a change from [3722] in the v2v3 converter.

  * Added a custom Jinja2 filter 'capfirst()', for use in the documentation 
    template.

  * Tweaked the documentation template: Some changed wording, support for 
    sub-items not wrapped in <t>, corrected capitalisation using the 'capfirst' 
    filter.

  * Updated hastext() and iscomment() to do the right thing if given 
    content with embedded xml processing instructions.

  * Tweaked the handling of default values for --date, so as to give better 
    documentation of the option, and also tweaked the help text for 
    --table-borders.

  * Added a class utility method to get any current PI related to a given 
    setting, and fixed another case of template path default value, related to 
    [3722].

  * Added PI support for text table borders setting, and improved the text 
    table output for transitions between <th> and <td> rows> for 'light' and 
    'minimal' borders.

  * Added makefile support for testing of the --manpage and --docfile 
    switches.  Added silencing of one unavoidable warning in the test of 
    --unprep.

 -- Henrik Levkowetz <henrik@levkowetz.com>  17 Jul 2020 14:08:26 -0700


xml2rfc (2.46.0) ietf; urgency=medium

  * Added <dd class='break'/> and <span class='break'/> entries in
    additional places, as a workaround for WeasyPrint's eagerness to break
    between <dt> and <dd>.  Fixes issue #529.

  * Tweaked the rendering of <tt> inside table cells in text mode to not 
    use double quotes to distinguish the <tt> content from surrounding text 
    when the only cell content is the <tt> element.

  * Modified the text rendering of table cells.  <thead> and <tfoot> now 
    implies no special rendering (earlier, they caused a change in table border 
    on transition) while <th> now always renders with distinct borders compared 
    with <td>.  Also added 'light', and 'minimal' table renderings, with 
    different table border settings when compared to the previous rendering, 
    which now is available as 'full'.  The 'light' rendering is closer to the 
    v2 formatter table rendering, but does not permit table cells with colspan 
    or rowspan different from 1 to be properly distinguished.  The changes in 
    <th> rendering fixes issue #527.

  * Added a --table-borders option with possible values 'full', 'light', 
    'minimal', to control the table rendering of the text renderer.  The 
    current default value is 'full', but 'light' is closer to the v2 text 
    renderer's output.

  * Added a new internal join/indent setting to the Joiner nametuple to
    control outdenting.  Used the outdenting setting to enable outdenting
    for artwork wider than 69 characters in the v3 text renderer.  Fixes
    issue #518.

  * Added missing support for @indent for <ul> in the HTML renderer, and 
    tweaked the same for <ol>.  Fixes issue #528.

  * Corrected is_htmlblock() to not count <dt>, <dd>, and <li> as block 
    elements as they cannot be wrapped in <div>.

  * Updated and refined the div-wrapping used to introduce additional IDs
    to deal better with anchors on <dt>, <dd>, and <li>.  Fixes issue #530.

  * Made the CSS setting of background colour on <tt> and <code> more 
    selective in order not to interfere with background colour in tables, for 
    instance.

  * Removed CSS that made URLs in references not break across lines -- the 
    drawbacks turn out to be more of a bother than the original reason not to 
    let these wrap.

  * Did some HTML cleanup to make the w3.org validator happy.

  * Fixed a few places in the HTML renderer where an empty tag could cause 
    an exception.

  * Added test cases for empty and double email addresses, and added
    support for multiple email addresses within an author's address block.
    Fixes issue #522.

 -- Henrik Levkowetz <henrik@levkowetz.com>  23 Jun 2020 10:28:56 -0700


xml2rfc (2.45.3) ietf; urgency=medium

  * Fixed an issue with rendering empty <dd/> elements.

 -- Henrik Levkowetz <henrik@levkowetz.com>  08 Jun 2020 07:52:50 -0700


xml2rfc (2.45.2) ietf; urgency=medium

  * Fixed the HTML styling of <ul spacing="compact"/> lists, which wasn't 
    really compact.

 -- Henrik Levkowetz <henrik@levkowetz.com>  02 Jun 2020 08:07:51 -0700


xml2rfc (2.45.1) ietf; urgency=medium

  * Changed the handling of hyphens in table cells, so as to introduce line 
    breaks on hyphens if necessary to keep a table from becoming too wide (but 
    not otherwise).  The --table-hyphen-breaks switch can be used to permit 
    line breaks on hyphens in table cells also for tables that would not 
    otherwise become too wide.

  * Added a switch --table-hyphen-breaks that will make the text renderer 
    more eager to break on hyphens in table cells.

  * Using a pilcrow on an otherwise empty element added unwanted vertical
    space in the HTML output; avoid this.  Related to issue #508.

  * Added a parameter to TextSplitter to control whether text is split on 
    hyphens or not.

 -- Henrik Levkowetz <henrik@levkowetz.com>  30 May 2020 04:55:22 -0700


xml2rfc (2.45.0) ietf; urgency=medium

  * Fixed the html rendering of <cref> with display=false.
    Fixes issue #516.

  * Fixed the text rendering of <cref> with display=false.
    Fixes issue #515.

  * Fixed an error in postal address rendering for Sweden.
    Fixes issue #520.

  * Changed the internals of the text formatter to retain <br> information 
    for longer internally, in order to make <br> have effect in for instance 
    <dd> and <td> element text.  Fixes issues #508 and #513.

  * Fixed erroneous indentation of first line of second and following 
    paragraphs of multi-paragraph <dd> elements, and changed code to retain 
    <br> in filled text.

  * Added a font-family setting for @page in PDF mode, and added code to 
    warn about missing Roboto Mono fonts if the python-fontconfig package
    is available

  * Added instructions for RobotoMono to the installation help for the 
    --pdf switch.

 -- Henrik Levkowetz <henrik@levkowetz.com>  27 May 2020 04:08:18 -0700


xml2rfc (2.44.0) ietf; urgency=medium

  * Added an '--unprep' switch and formatter to undo changes made by
    '--prep' which make a file unsuitable for continued editing.  This
    will help the RPC when the .xml file received from draft authors for
    an upcoming RFC is in 'prepped' format.

  * Updated the v3 --expand formatter to expand external sourcecode and 
    artwork, in addition to handling XIncludes.  This should make it
    possible to produce single consolidated .xml files without using
    the --prep workaround.

  * Did some refactoring, moving the dispatch method that calls processing 
    methods based on XPath expressions, and some other generic methods, into 
    the V3 formatter base class.

  * Moved slugify() function, used in several writers, from v2v3 to 
    utils.py.

  * Did a minor CSS tweak to improve orphan/widow handling of <dl> elements.

 -- Henrik Levkowetz <henrik@levkowetz.com>  22 Apr 2020 14:49:39 -0700

xml2rfc (2.43.0) ietf; urgency=medium

  * Added a workaround for weasyprint's extreme unwillingness to break 
    between <dd> and <dt>, which looks like a bug.  Fixes issue #514.

  * Fixed a discrepancy in address handling between text and html output.  
    Fixes issue #509

  * Added more flexible text formatter handling of orphans and widows, and
    changed the default orphans/widows setting to 2 (matching the default
    CSS setting).

  * Changed the CSS to not page break before the ToC, support
    keepWithPrevious, and deal better with how some artwork, figures and
    tables break across pages. Fixes issue #511.

  * Changed the keepWithNext handling for the generated ToC to group the
    first 3 lines together, to avoid one-line orphans when page-breaking
    the ToC.  Also fixed some pyflakes issues with regex strings.

  * Added text formatter support for 'keepWithPrevious', even if the
    preptool generally converts 'keepWithPrevious' to 'keepWithNext' on
    the previous element.

  * Added setting '.keepWithPrevious' on html elements when set on the
    precursor xml element.

  * Added v2v3 converter code to set 'keepWithNext' and 'keepWithPrevious'
    when converting <preamble> and <postamble> elements to <t> elements,
    to keep the grouping.

  * Added code to the command-line runner to set some option default values
    that don't have matchinb command-line switches.

  * Added default settings for orphans and widows during text rendering.

  * Reduced the CSS font-family for body to only Noto Serif.  Addresses
    issue #500.

 -- Henrik Levkowetz <henrik@levkowetz.com>  14 Apr 2020 07:00:32 -0700

xml2rfc (2.42.0) ietf; urgency=medium

  * Changed the minimum whitespace distance between Updates/Obsoletes/etc. 
    and Author/Organization in the document header in text rendering back to 
    the value used in the v2 renderer (4 spaces) instead of the value used 
    recently (3 spaces).

  * Added a guard against trying to normalize whitespace text that is None.

  * Added a guard against trying to create <iref> entries for reference
    content, avoiding a later exception.  Fixes issue #501.

  * Changed the approach to avoiding page breaks inside artwork etc., and 
    added styling to prevent page breaks between <dt> and <dd> in a <dl>.  
    Fixes issues #461, #463, and #491

  * Did a variable name change and removed a 'del', to deal with a
    pyflakes issue under 2.7.  Fixes issue #504.

  * Added missing keepWithNext support for PDF output.

  * Added a --v2 switch with the same meaning as --legacy.

 -- Henrik Levkowetz <henrik@levkowetz.com>  02 Apr 2020 11:25:57 -0700


xml2rfc (2.41.0) ietf; urgency=medium

  * Added <sourcecode> to the tags that may have bare unicode content.  
    Fixes issue #499.

  * Tweaked the CSS for dl.olPercent dd.  Fixes issue #458.

  * Fixed an issue with rendering <iref> entries without trailing text or 
    whitespace.

  * Fixed an issue in the v2v3 converter that could occur if no <front> 
    element is present.

  * Fixed an issue with using Latin content in <city>, also addressing the 
    same issue for other <postal> sub-elements.  Related to issue #493.

  * Fixed an issue with the formatting of a warning message.

  * Fixed a Py2/3 issue with the --country-help output.

 -- Henrik Levkowetz <henrik@levkowetz.com>  20 Mar 2020 11:58:50 -0700

xml2rfc (2.40.1) ietf; urgency=medium

  * Applied patch from mt@lowentropy.net to simplify javascript and handle 
    more page width responsiveness in CSS.

  * Made table and row borders the same for print and HTML on request from 
    the RPC, and increased the contrast between borders and odd row background 
    colour slightly.  Fixes issue #494.

 -- Henrik Levkowetz <henrik@levkowetz.com>  27 Feb 2020 15:05:04 -0800


xml2rfc (2.40.0) ietf; urgency=medium

  * Worked around weasyprint's failure to honour <ol> type attributes by 
    using the appropriate CSS list-style-type to control the list style.  Fixes 
    issue #489.

  * Added <br/> to the v3 grammar.  Fixes issue #492.

  * Fixed an issue where comments inside ascii-art artwork would cause 
    following artwork not to be rendered.

  * Fixed an issue where use of .splitlines() instead of .split('\n') 
    caused unexpected removal of blank lines at the beginning or end of artwork.

  * Allowed Latin script content in <organization> without requiring an ascii 
    attribute, to match the treatment of author and contact names.  Fixes issue 
    #493

  * Added additional error information when text content is found where 
    the schema does not allow it.

  * Fixed an issue where trailing whitespace in artwork can trigger bad
    rendering, by removing whitespace at the end of lines in <artwork> and
    <sourcecode>.  Fixes issue #490

  * Changed the plain text URL for the trust license-info in TLP 
    boilerplate to an <eref> also for IAB documents.  Fixes issue #456.

  * Removed indentation from lists rendered in table cells.

  * Fixed an incorrect attribute grouping in the v3 schema

  * Fixed two off-by-one errors in the calculation of the length of 
    Updates/Obsoletes lists.  Addresses issue #472

 -- Henrik Levkowetz <henrik@levkowetz.com>  18 Feb 2020 13:37:07 -0800


xml2rfc (2.39.0) ietf; urgency=medium


  * Provided a rendering for <xref> with reference targets which are part of 
    a <referencegroup> and don't have a reference tag.

  * Added a --pdf-help command-like option, and tweaked the order of some 
    command-line options in the --help output.

  * Added a new filter for pdf-gneration library warnings, to avoid it 
    appearing on every xml2rfc invocation.

  * Added a v2v3 converter for dates with non-numeric years.

  * Added an error for attempting to insert a missing XInclude namespace 
    prefix when 'xi' is already defined as something else.

  * Fixed a bug introduced with the refactoring in [3438].

 -- Henrik Levkowetz <henrik@levkowetz.com>  31 Jan 2020 03:37:59 -0800


xml2rfc (2.38.2) ietf; urgency=medium


  * Provided a rendering for <xref> with reference targets which are part
    of a <referencegroup> and don't have a reference tag.

  * Added a --pdf-help command-line option, and tweaked the order of some
    command-line options in the --help output.

  * Added a new filter for pdf-gneration library warnings, to avoid it 
    appearing on every xml2rfc invocation.

  * Added a v2v3 converter for dates with non-numeric years.

  * Added an error for attempting to insert a missing XInclude namespace 
    prefix when 'xi' is already defined as something else.

  * Fixed a bug introduced with the refactoring in [3438].

 -- Henrik Levkowetz <henrik@levkowetz.com>  27 Jan 2020 16:29:18 +0000


xml2rfc (2.38.1) ietf; urgency=medium

  * Added a preptool check for numbered sections occurring after or under
    unnumbered sections, and changed the code for Reference sections to
    not emit section numbers if the previous section was unnumbered.  
    Fixes issue #433

  * Refactored the code for reference anchor to display string mapping,
    locating it in a base class method.  Updated it to honour the symRefs
    setting.  Fixes issue #476.

  * Added installation of Python 3.8 to Dockerfile, and updated the minor
    version numbers for the other Python installation stanzas.

  * Fixed a problem rendering multiple authors with organization 
    showOnFrontPage='false'.  Further addresses issue #483.

  * Added a switch --no-external-js, and some other --no-* switches to 
    invert boolean settings.  Fixes issue #486.

  * Added an early return from cache() when repeated attempts to fetch an 
    URL fails.

 -- Henrik Levkowetz <henrik@levkowetz.com>  20 Jan 2020 07:30:55 -0800


xml2rfc (2.38.0) ietf; urgency=medium

  * Tweaked the preptool handling of <xref> in <toc>.  Further addresses
    issue #466, fixing an issue that could occur if a section used for
    instance <sub> or <sup>.

  * Fixed an off-by-one error in list indexing during text wrapping of
    first page header content.  Fixes issue #483.

  * Tweaked the output for <xref format='title'> when refering to Reference 
    entries.

  * Fixed a Py2/Py3 code compatibility issue

  * Tweaked the handling of <artwork type='ascii-art'> to insert '(Artwork 
    only available as ...)' text also for text content which is only whitespace.

  * Changed utils.isblock() to use a list of element tags derived from the 
    schema instead of a static list, to avoid discrepancies between schema
    and code.

  * Changed the parser's handling of inter-element blank text to keep instead 
    of remove, in order to not drop intentional blank space between for 
    instance <xref> instances.

  * Reverted the silencing of warnings related to postal address input.  
    Addresses issue #437.

  * Added code to deal better with <iref> as a direct child of <section>.  
    Fixes issue #479.

  * Fixed a bug where text after <iref> was lost by the text formatter.  
    Fixes issue #480

  * Added an option to list recognised country names for use with 
    <country>, and changed the note() emitted for unrecognized countries to a 
    warning.  Added some new alternative country strings.

  * Updated test masters

  * Fixed a problem with <author> entries with only <organization> 
    information.  Fixes issue #424.

  * Added a minimum width setting for tables, in order to avoid table 
    captions rendering in very narrow space when the table itself is narrow.  
    Fixes issue #482.

  * Avoid double space after initial when <contact> is rendered inline.  
    Fixes issue #478.

  * Added code to recognise another case of inconsistent table row cell 
    counts and report the issue.

  * Added 'P.R. China' as a recognized country name.

  * From Python 3.2 and later, cgi.encode() is deprecated.  Changed to use
    html.encode() instead.

 -- Henrik Levkowetz <henrik@levkowetz.com>  14 Jan 2020 10:34:43 -0800


xml2rfc (2.37.3) ietf; urgency=medium

  * Undid margin-left: 0 for <dd> from the original supplied CSS, which
    caused nested lists to not have any distinction between levels.  Fixes
    issue #458.

  * Tweaked the margin of block elements within <aside>.  Fixes issue #469.

  * Added <dt> and <li> to list of block elements.  Fixes issue #453.

  * Treated pilcrows on sourcecode within figure the same way as artwork
    within figure (don't add a pilcrow, since the figure title already
    provides an anchor).  Fixes issue #475.

  * Don't use both @seriesNo and <seriesInfo> to emit series number.  Fixes 
    issue #477.

  * Added code to adapt the line break position for long Updates: and 
    Obsoletes: entries for long right-column entries.  Fixes issue #472.

  * Added normalization before the comparison that determines if <xref> 
    text content is different from derivedContent or not, and should be emitted 
    in addition to the derivedContent.  Fixes issue #466.

  * Fixed a case where simple derivedContent was used instead of fully 
    rendered explicit <xref> text content where available.  Fixes issue #474.

 -- Henrik Levkowetz <henrik@levkowetz.com>  22 Dec 2019 10:02:59 -0800

xml2rfc (2.37.2) ietf; urgency=medium

  * Refined the non-ascii punctuation (smart-quotes, etc.) downcoding, and 
    eliminated a couple of bugs that could lead to infinite looping or
    crash.  Fixes issue #473.

  * Made the xref labels used for different @section values work for 
    additional value types.

  * Fixed a couple of preptool bugs found during debugging of issue #473.

 -- Henrik Levkowetz <henrik@levkowetz.com>  17 Dec 2019 11:00:48 -0800


xml2rfc (2.37.1) ietf; urgency=medium

  * Fixed a bug in the text formatter pagination code where it incorrectly 
    tried to annotate Comment and PI nodes with page number information.

  * Updated the v2v3 converter to do essentially what it did before v2.37
    with respect to unicode downcoding, but with more explicit calls.

  * Added a base writer method to downcode reference punctuation.

  * Moved the list of (tag, attr) combinations that permit unicode values 
    into util.unicode.  Rewrote docwncode_punctuation() to only touch 
    punctuation.

  * Restored lost trailing text after <contact> in <t> context for text 
    output.

 -- Henrik Levkowetz <henrik@levkowetz.com>  12 Dec 2019 05:16:50 -0800


xml2rfc (2.37.0) ietf; urgency=medium

  * Added a new element <contact> with the same attributes and child
    elements as <author>, except for @role.  As a child element of
    <section> it will create a name and address block, as for authors in
    the Authors' Addresses section; as a child of <t> it will create an
    inline name entry, similar to <author> in citations.

  * Changed the handling of block elements within table cells to re-wrap
    for better column fit.  Fixes issue #454.

  * Added an error for references without anchor (in v2; in v3 this will
    be caught by the schema validation step).  Fixes issue #412.

  * Changed error handling in a couple of places so as to result in
    non-zero command-line exit values on errors.  Fixes issue #464.

  * Tweaked the <cref> text renderer to not apply <t> paragraph filling to
    the <cref> content.  Fixes an issue raised by resnick@episteme.net.

  * Changed layout of multiple instances of <extaddr> and <street> to show
    on separate lines instead of one line, comma-separated.  Changed one
    notice message to warning.

  * Added an option to silence warnings and notices starting with given
    strings.

  * Changed the HTML renderer to not emit email information in both
    primary and alternative author address blocks.

  * Added a test case using the new <contact> element, and added a couple
    of email addresses for increased coverage of email address placement
    when non-ascii address information is present.

  * Updated the handling of non-latin address information in the text
    format to follow RFC7997 and the HTML output more closely.

  * Added generation of v3.rng from v3.rnc to the Makefile, and fixed a
    schema error in the .rng file

  * Changed the default content downcoding done for things like 'smart
    quotes' to only apply to text content, not to XML element attributes.


 -- Henrik Levkowetz <henrik@levkowetz.com>  10 Dec 2019 08:56:57 -0800


xml2rfc (2.36.0) ietf; urgency=medium

  * Improved support for internal xref to <li>, giving 'Section X,
    Paragraph Y, Item Z'.  Tweaked the output for xrefs to <li> with
    format='counter' to not include trailing period.

  * Stripped away some cases of leading punctuation on incomplete postal 
    address lines.

  * Fixed an issue with multi-part <ol> lists with the same group setting.

  * Added support for tables in list items, on request from the RPC, in 
    order to match the needs of a couple of recent RFCs-to-be.

  * Improved output format handling of postal addresses for countries with
    non-latin scripts where the XML address content is ASCII, rather than
    the expected native script.

  * Fixed the isempty() utility function to correctly return False for 
    elements containing comments with trailing text.  Fixes issue #455.

  * Added some cases of normalization of postal code during v2v3 conversion.

  * Added bottom margin space for artwork in print output, to match that
    for sourcecode.

 -- Henrik Levkowetz <henrik@levkowetz.com>  02 Dec 2019 08:20:00 -0800


xml2rfc (2.35.0) ietf; urgency=medium

  * Changed the pn numbers for ToC entries to use 'section-toc.1-...' 
    instead of 'section-boilerplate.3-...'.

  * Fixed schema and code so as to correctly show <name> entries with 
    superscript (and more) in the ToC.

  * Added code to clean out instances of &nbsp; and other special 
    characters when rendering ToC, title, xref and reference.

  * Eliminated postal address lines with only template content, i.e., no
    <postal> content, from output renderings.

  * Fixed a typo in the v2v3 converter which caused conversion of the 
    tocdepth PI to fail.

  * Added handling of <sourcecode> name attributes which were too long to
    fit on the same line as the <CODE BEGINS> marker, and added a specific
    indentation setting for <sourcecode> within <section>, to avoid
    extra indentation.

  * For source code with markers and file name, only emit file name if 
    actually set.  Fixes an issue with the HTML renderer.

  * Added the same in-figure indent for sourcecode as for artwork, to avoid 
    extra indentation.

  * Removed an extraneous leading comma in reference rendering for 
    references without author information.

  * Added CSS for bottom margin after <sourcecode> rendering in print.

  * Added a missing conversion of attribute value 'no' to 'false' in the 
    v2v3 converter.

  * Tweaked the text width when folding hang text.

  * Changed the location and method of checking and catching non-ascii 
    characters in XML input declared with encoding='us-ascii'.

  * Added warnings for tabs in artwork and sourcecode.

  * Added a warning for long lines in v3 text ouput.

  * Added a new metadata.js file from the RPC, with copyright and license 
    information and a code tweak.

  * Refactored extract_date() into one extraction function and one 
    augmentation function, in order to render references with missing date info 
    correctly.  Also updated renderers to handle this case appropriately.

  * Fixed an inconsistency in requiring the ascii attribute for Latin
    script non-ascii names.

  * Corrected a buggy format string.  Fixes issue #449.

  * Added an error if pn numbers are present in a file which is not marked 
    with prepTime.

  * Corrected the indentation for <t> in table cells.

  * Fixed an issue with duplicate pn numbers for <t> in table cells.

 -- Henrik Levkowetz <henrik@levkowetz.com>  12 Nov 2019 05:41:35 -0800


xml2rfc (2.34.0) ietf; urgency=medium

  * Made preptool reference sorting honour the sortRefs <rfc> attribute
    when symRefs is true.

  * Fixed an issue with v2v3 conversion of PIs to <xml> attributes, where 
    PIs occuring before <rfc> would not be processed.

  * Fixed the v3 text output for authors with no organization to output 
    blank lines, as for v2.

  * Changed the rendering of <xref> with section reference and text 
    content, based on input from the RPC.

  * Fixed an issue with &nbsp; in section headers not being handled
    properly by PDF viewers, by using plain space instead of non-breaking
    space.

  * Fixed an issue with sizing of SVG artwork in PDF renderings.

  * Fixed a validation problem for an empty boilerplate element for ipr='none'.

  * Added a <toc> entry in <rfc><front>, and moved table of contents XML 
    from <boilerplate> to <toc>.

  * Fixed an issue with the use of seriesInfo for top first page of v3
    text output.

  * Added support for a new attribute 'brackets { "none" | "angle" }? for
    <eref>, on request from the RPC.

  * Changed the rendering of <dt><dd> so as to insert a newline if the <dt> 
    entry extends too close to the right-hand margin.

  * Tweaked the removal of PIs during the preptool phase to occur before
    writing prepped content out to file, rather than earlier, in order to
    preserve PIs when prep() is used by xml2rfc internally.

  * Added a warning for SVG content that won't scale.

  * Added 'dd' to is_htmlblock().  One effect of this is to let <dd> to 
    be link targets for <xref> when generating HTML output.

  * Changed the schema for <postal> to a workable but less precise 
    expression because the RFC7991bis generation scripts don't support the RNG 
    <interleave> construct.

 -- Henrik Levkowetz <henrik@levkowetz.com>  23 Oct 2019 08:52:03 -0700


xml2rfc (2.33.0) ietf; urgency=medium

  * Added an error message for a case that would otherwise break text table 
    generation.

  * Added whitespace normalization for postal address tags, bcp14, and 
    similar.

  * Fixed an issue with some special names like S/MIME in artwork.

  * Removed conditional insertion of <svg> width= and height=, leaving that 
    up to the author.

  * Removed a page break restriction that could cause unwanted page breaks 
    after reference section titles.

  * Fixed issues with added or omitted spaces in line-broken URLs and other 
    items.

  * Updated metadata.js to a new version received from the RPC

  * Added conversion of some unicode code points to XML entities to the 
    v2v3 converter, in order to make later editing easier.

 -- Henrik Levkowetz <henrik@levkowetz.com>  16 Oct 2019 09:39:03 -0700


xml2rfc (2.32.0) ietf; urgency=medium


  * Adjusted print font sizes, which were in some cases overly large.  

  * Added CSS page-break settings to avoid PDF page breaks inside tables
    and references.

  * Tweaked the styling of <aside> to be more aligned with the W3C
    description of the element.

  * Added support for the --legacy-date-format when generating the
    boilerplate expiry date.

  * Fixed an issue with the text width in <aside> text rendering.

  * Improved the handling of U+2028 in text output, and fixed a bug in the
    handling of U+2028 in the HTML output.

  * Changed default value for --id-is-work-in-progress to True

  * Fixed an issue with incorrect section links to appendices.

  * Fixed a misspelling of "don't".  Fixes issue #434.

  * Added styling to make HTML <dl> rendering of XML <ol type='%d'> more
    like the HTML <ol> and <ul> rendering.

 -- Henrik Levkowetz <henrik@levkowetz.com>  04 Oct 2019 05:37:39 -0700


xml2rfc (2.31.0) ietf; urgency=medium

  This release adds a feature to help with conditional line breaking
  inside table cells, and tweaks the layout of text in cells slightly.  It
  also fixes an incorrect line-break point and second-line indentation for
  long section titles in the v3 text formatter.  From the commit log:

  * Fixed an issue with leading and trailing space padding in table cells, 
    and refined it to consider the alignment setting.

  * Modified the text formatter to accept &zwsp; as a potential line-break 
    point.

  * Included zwsp in allowed special characters (in addition to nbsp, nbhy, 
    word-joiner and line-separator).

  * Fixed the line-breaking and second-line indentation of section titles 
    in v3 text output.

  * The start of an emacs nXML mode schema which explicitly mentions 
    xinclud in a couple of places.

  * Removed code left in pdf.py by mistake, and set options.pdf=True when 
    in the PdfWriter.

 -- Henrik Levkowetz <henrik@levkowetz.com>  25 Sep 2019 13:40:47 -0700


xml2rfc (2.30.0) ietf; urgency=medium

  * Added logging configuration for weasyprint.  This controls the logging
    level based on the --quiet and --verbose flags, and should make
    weasyprint logging ouput more consistent across systems.

  * Weasyprint reports ERROR if a CSS <link> URL isn't available, so we
    won't insert a <link> for "rfc-local.css" when generating PDF if the
    file doesn't exist.

  * Tweaked the Makefile to use --add-include in some cases, for regression 
    testing.

  * Corrected the <xi:include> links produced during v2v3 conversion with
    the --add-xinclude switch, 

  * Changed the code to not retain <!ENTITY> declarations after v2v3
    conversion.

  * Changed BaseV3Writer.die() to raise an exception, rather than exit on 
    the spot, in order to do the right thing when called as a library.

  * Tweaked the command-line messages when a fatal error is raised in a 
    writer.

 -- Henrik Levkowetz <henrik@levkowetz.com>  19 Sep 2019 04:49:45 -0700


xml2rfc (2.29.1) ietf; urgency=medium

  * Fixed an issue with pagination that could occur if a table (or other 
    block) longer than a page ended on the last page.

 -- Henrik Levkowetz <henrik@levkowetz.com>  18 Sep 2019 08:23:10 -0700


xml2rfc (2.29.0) ietf; urgency=medium

  * Adjusted the handling of ASCII, Latin, and non-Latin names and
    abbreviation in the v3 text formatter to act the same way as the v3
    HTML formatter.

  * Added RFC #### to the HTML rendered document title (for RFCs).

  * Added <artset> in the schema in two places that were missed when 
    first introducing it.

  * Changed the metadata json URL to avoid CORS issues due to redirects.
    Added a missing JS 'var' keyword and fixed a typo.

  * Handled a file open mode deprecation issue.  Fixes issue #427.

  * Added 'table' to the internal list of block-level elements.

  * Added the traditional default 'Network Working Group' to the top of 
    HTML output for drafts.

 -- Henrik Levkowetz <henrik@levkowetz.com>  17 Sep 2019 14:14:10 -0700


xml2rfc (2.28.0) ietf; urgency=medium

  * Fixed the handling of empty <workgroup> entries when writing HTML, and 
    added handling for multiple <workgroup> entries for text output.  Fixes 
    issue #425.

  * Fixed an inconsistency in the handling of non-ASCII author initials.

  * Added some XML cleanup before writing prepped output.

  * Fixed a case where for instance 'Section b.2' would be emitted instead 
    of the correct 'Appendix B.2'

  * Changed the restricted right margin for <dt> terms.

  * Added a check for conflicting schema information for v3 input files, 
    and fixed a failure to heed the presence of preptool errors when genreating 
    v3 format outputs.

  * Adjusted the library call default value for --legacy-date-format to
    match the command line setting.

  * Added a script to minify javascript (through an external service), and 
    added a javascript minification step to the Makefile.

  * Added a html <div> for external metadata, and updated metadata.js to 
    look for online metadata also for documents served from disk.

  * Fixed a problem with authors without any name, with only organization 
    information present.

 -- Henrik Levkowetz <henrik@levkowetz.com>  15 Sep 2019 13:22:04 -0700


xml2rfc (2.27.1) ietf; urgency=medium

  * Refined the preptool code that inserts reference target URLs to use an
    more appropriate guess at the extension, depending on the base URL.

  * Corrected a mismatch between the default value for a switch in run.py
    and base.py.

  * Changed the code for the --id-is-work-in-progress to avoid duplicate 
    <refcontent> insertion.

 -- Henrik Levkowetz <henrik@levkowetz.com>  10 Sep 2019 08:46:33 -0700


xml2rfc (2.27.0) ietf; urgency=medium

  * Added a test for handling of &wj; and &nbsp; during text linebreaking.

  * Corrected the line break handling for &wj; and &zwsp; and changed to
    using a unicode private use code for internal "don't break" handling,
    in order to make use of &wj; possible in the XML source input.

  * Added country name aliases for South Korea.

  * In text renderer: Reverted 'Internet Draft' to 'Internet-Draft' for
    series name rendering.  Stripped empty parts from Updates: and
    Obsoletes: lists.  Added removal of U+2060 (word joiner) before
    emitting rendered text.

  * Adjusted the preptool inserted reference target value for 
    Internet-Drafts to include a trailing '.txt' to avoid 404s

  * Added U+2060 (word joiner) to the list of code points that should not
    trigger non-ASCII warnings

  * Added an --id-is-work-in-progress switch to let the RPC automatically
    add a <refcontent> element indicating "Work in Progress" for
    Internet-Drafts.

  * In HTML output, removed blank items from Updates and Obsoletes lists, 
    and reverted 'Internet Draft' in reference rendering to 'Internet-Draft'.

  * Added entity definitions for &wj; and &zwsp;

  * Fixed pyflakes issue; a variable name mismatch.

  * Updated the installation instructions emitted when --pdf is specified 
    without having the necessary libraries in place to also include 
    instructions for Noto font installation.

  * Fixed an issue with the ToC generation where sections without numbers 
    might still be rendered with the whitespace intended to go between number 
    and section title.

  * Fixed an issue with the HTML ToC where sections without numbers might 
    still be rendered with the whitespace intended to go between number and 
    section title.

  * Removed pilcrows from print layout to avoid spurious extra lines for 
    paragraphs where the pilcrow would not fit at the end of the last line.

  * Fixed an insufficient test for URL vs. local file when handling the 
    --metadata-js-url switch.

  * Tweaked the CSS for print to avoid reference entries beginning on a new 
    line, below the reference tag.

 -- Henrik Levkowetz <henrik@levkowetz.com>  09 Sep 2019 10:03:13 -0700

xml2rfc (2.26.0) ietf; urgency=medium

  * Fixed a broken rendering of Obsoletes: and Updates:, broken in different 
    ways in v3 HTML and v3 text output.  Fixes issue #423.

  * Added an alternative style sheet from Martin Thomson (reachable with
    --css=mt) and rewrote the code to read in alternative style sheets to look
    in more places. Also added a mt.js file to go with the mt.css file, and
    tweaked the html renderer to load an alternative .js file if an
    alternative .css file is set and a matching .js exists.

  * Fixed an issue with nested <ul> with emtpy="true".

  * Added a test, with error exit, for duplicate <displayreference> 
    replacement terms.  Fixes issue #421.

  * Changed the rendering of Internet-Draft references to follow
    draft-flanagan-7322bis-03 (RFC Style Guide bis) more closely.

  * Made the address pane for authors' addresses wider, to accomodate very 
    long email addresses.  Changed the bottom margin for some styles used by 
    figures in order to get the same caption placement for figures and tables.

  * Removed the computed <dl><dd> text mode indentation, and replaced it 
    with a fixed indentation of 3.

  * Added an example section using <aside> to element.xml.  Updated the 
    <xref> examples that use the section attribute.

  * Updated the prepping and rendering of <xref> with section settings to
    better handle sectionFormat="bare", and changed the handlin of the
    metadata.js script in HTML output.

  * Added a minified version of the metadata.js script, updated the help text
    for the --external-css switch, and changed the default for the
    --metadata-js-url switch to use the minified metadata.js file, and changed
    the metadata_js_url setting for invocation of xml2rfc renderers as library
    modules to use the minified metadata.js

  * Updated metadata.js with a new copy received from the RFC Editor staff.

  * Added a warning for mismatch between <rfc number="..."> and 
    <seriesInfo name="RFC" value="...">.

  * Modified the v2v3 conversion code to deal correctly with multiple 
    instances of <artwork> within an unlabelled Figure.  Modified the converter 
    to avoid some lxml-related issues under python 3.x.

  * Updated XmlRfc.__init__() with a new keyword argument to set source 
    file, needed when using the v2v3 converter as a library function (such as 
    from id2xml in v3 mode).

  * Incorporated a new updated copy of the original CSS stylesheet received 
    from the original contractor.

 -- Henrik Levkowetz <henrik@levkowetz.com>  03 Sep 2019 12:57:11 -0700


xml2rfc (2.25.0) ietf; urgency=medium

  This rounds up the remaining known issues raised by the RFC Editor staff.
  Commit log excerpt:

  * Rolled back an earlier requirements change, and added a restriction on 
    pycountry due to a buggy release.

  * Fixed a number of issues with the xml generated for ToC and Index.  This
    makes the ToC output from prepped files the same as from unprepped files,
    which was not the case earlier.

  * Fixed an log() argument error.

  * Modified test input files to silence known issues with legacy rfc xml
    test files, in order to more easily be able to see newly appearing errors.

  * Fixed a string formatting error.  Fixes issue #417.

  * Changed processing progress messages to more consistently obey --quiet, 
    and to be visually distinct from errors and warnings.

  * Modified the PI stripping so as to be able to silence warnings during 
    preptool processing.

  * Added indentation handling for variations of <ol> on request from the
    rfc-editor staff.

  * Moved the check for appropriate <bcp14> content from the text renderer 
    to the preptool, and tweaked it to permit &nbsp;, e.g., 'MUST&nbsp;NOT'.

  * Added a base_url setting to avoid an error message during pdf generation.

  * Added an option --id-reference-base-url to set base url for rendering 
    of <xref> with I-D section references, with a sensible default; and set a 
    default value for --rfc-reference-base-url for <xref> with section= ease of 
    use.

  * Tweaked the conditions for a preptool warning about missing docName to 
    only apply in non-rfc mode, and added generation of any missing <link 
    rel='prev'> element from docName if present.

  * Widened the search for seriesInfo elements when handling the 
    --rfc-reference-base-url option, in order to handle all possible 
    placements, and fixed a bug in the creation of target URL when
    using this option.

  * Added a warning for <vspace> elements without proper v3 alternatives 
    during v2v3 conversion.

  * Fixed a bug introduced in [3201] when stabilizing attribute order,
    which could cause errors when running v2v3 conversion with XInclude
    insertion.

  * Changed the code for --info dump to work for both py27 and py3x.

  * The --legacy-list-symbols option was checked for validity before the 
    version attribute of the input file was seen.  Moved this check (and some 
    similar cases) later, in order to permit it to be used with v3 input 
    without giving the --v3 option.  Fixes issue #414.

 -- Henrik Levkowetz <henrik@levkowetz.com>  26 Aug 2019 05:43:29 -0700


xml2rfc (2.24.0) ietf; urgency=medium

  This release addresses a number of issues and minor feature requests from
  the RFC Editor.  Excerpt from the commit log:

  * Added a switch --rfc-reference-base-url to specify an alternative base url
    when using <xref> section links.

  * Stabilized XML and HTML output attribute order.  With lxml 4.40, the
    handling of attribute order changed for Py 3.6 and higher, to match the
    use of ordered dictionaries in Py3.6+.  Initial attributes set on an
    element are now sorted by key value.  This matches what lxml did
    previously, and still does for Py 2.7 and Py 3.[0-5].  Enforcing sorted
    initial attributes under Py 3.6+ makes our output more stable under
    varying versions of lxml and Python.

  * Added support for <xref> section references in the v3 text formatter.
    Refactored some of the xref handling in preptool.  Added warnings for some
    xref attribute and content combinations that don't make sense.

  * Tweaked the error message for use of -o with multiple output formats.

  * Tweaked the layout of v3 text front page to correctly handle unicode
    codepoints of different width than 1, in order to get correct line lengths
    for authors with CJK names.

  * Handled a problem with an unwanted space between year and the following
    comma in HTML <reference><date> rendering.

  * When using the built-in lxml Element remove() method, it unexpectedly
    removes not only the element, but also the element's tail.  Dealt with
    this by using our own remove() where needed.

  * Added pilcrows on <dd>, to match pilcrows on other list entries.

  * Removed address lines with only punctuation from the author address
    rendering, eliminating for instance lines containing only a comma.

  * Added a viewport meta tag, to improve rendering on some devices.

  * Added class 'selfRef' on some Figure and Table links that were missing it.

  * Changed the address format to always start with the author name, according
    to a conversation with the RFC-Editor staff in Prague.

  * Changed the V3 writer note() method to obey quiet and verbose in the same
    manner as log.note().

  * Changed the v3 validate() from being separate methods for the v2v3
    converter and the preptool to a common method on BaseV3Writer.

  * Tweaked the <date> handling to make year ranges and fuzzy dates possible.

  * Fixed an issue where text was lost when immediately preceded by <xref>.

  * Added a --bom text format option, to insert a BOM mark at the beginning of
    the text format output.  Also added a BOM test, and removed some
    irrelevant switches.

  * Made the line spacing of <sourcecode> the same as for <artwork>.

  * Removed stripping of horizontal whitespace at the start of artwork in list
    items.

  * Removed an unwanted attribute inheritance of 'ulEmpty' for <ul>.

  * Fixed an issue with the CSS stylesheet for compact <dl> lists.

  * Removed an unintentional change that would permit a 'contributor' author
    role.

 -- Henrik Levkowetz <henrik@levkowetz.com>  10 Aug 2019 08:22:50 -0700


xml2rfc (2.23.1) ietf; urgency=medium

  * Fixed a bug in the handling of sha1 and base64 methods when generating 
    cache names for references with query arguments.

  * Updated the license file to more strictly follow the BSD 3-Clause 
    license, and changed the license field in the setup.py file to be more 
    precise.

 -- Henrik Levkowetz <henrik@levkowetz.com>  07 Jul 2019 15:40:53 -0700


xml2rfc (2.23.0) ietf; urgency=medium

  This release adds v2v3 support for conversion of v2 code with both text and
  external image sources to v3 <artset> format, and provides improved cache
  handling.  It also contains a long list of bugfixes.  Here is an excerpt
  from the commit log:

  * Fixed an issue where cache clearing did not consider custom cache 
    locations.

  * Added retry on connection error for external includes.  This fixes an
    issue which has appearing more often recently, where the first connection
    to fetch a reference file has failed to provide the right redirect.

  * Added inclusion of metadata.js in the html renderer, for future handling
    of dynamic metadata (updated-by and obsoleted-by information, for
    instance).  Added a default instance of the metadata javascript file to
    the distribution, and added an command-line option to specify an
    alternative version of the javascript metadata script.

  * Added <script> to the list of elements treated as blocks for HTML output
    formatting purposes.

  * Show 'US' as "United States of America" (official name rather than short 
    name according to ISO 3166-1)

  * Changed the default RFC base URL in run.py, and the extension used in 
    html.py.

  * Added code to the v2v3 converter to create an <artset> for legacy 
    artwork with both a 'src' attribute and text content.

  * Changed <reference> rendering when part of a <referencegroup> to not 
    include the DOI.

  * Fixed a crash that could occur during index building with multiple levels
    of <references>.

  * Tweaked the text format <artwork> placeholder (when no text format 
    artwork is present) to look at both 'src' and 'originalSrc' for an URL
    for alternative artwork.

  * Changed the handling of pilcrow links at end of paragraphs and similar 
    to follow immediately after the content, without wrappable space, to avoid 
    the appearence of having double blandk lines when the pilcrow would be 
    wrapped to sit by itself on a line.

  * Added a HTML div to hold artset anchor, fixing an issue where artset
    anchors would not always be present.

  * Refined the preptool warnings regarding artset/artwork anchor handling.

  * Eliminated toc update work when tocInclude is false.

  * Only apply validation of cache entries as references if they are 
    <reference> entries.

  * Refined the reference URL cache handling for URLs with query arguments, 
    to avoid cache collisions.

  * Eliminated an incorrect check for page break after section header at end
    of document.  Fixes issue #409.

  * Handled authors without address elements for v3 text.  Fixes issue #408.

  * Dealt better with <workgroup> without content.

  * Changed the schema to require at least one instance of <artwork> within 
    <artset>.  Fixes issue #405.

  * Added a default rendering (code point number) for code points without 
    unicode code point names.  Fixes issues #401 and #402.

 -- Henrik Levkowetz <henrik@levkowetz.com>  27 Jun 2019 04:32:23 -0700


xml2rfc (2.22.3) ietf; urgency=medium

  This release brings further tweaks and imporvements to the v3 text
  format output in the area of Table of Content formatting, and fixes a
  number of bugs.

  * Tweaked the handling of ToC page numbers in the v3 text format.

  * Tweaked the xml inserted by the preptool for the ToC to give ToC
    indentation and spacing which better match the legacy text format
    (and also looks better).

  * Added a rewrite of <svg> viewBox values to the simplest acceptable
    format, to make sure it will be understood by our pdf generation libs.

  * Added a test case for <xref section=...>

  * Tweaked the section label for fragment <xref> rendering to say
    'Appendix' instead of 'Section' for appendix references.

  * Added a pre-rfc1272 reference to elements.xml to test the author
    initials handling for early RFCs.

  * Tweaked the get_initials() code for use on <reference> authors.
    Refactored part of the text.render_reference() code to support
    get_initials() properly.

  * Added special initials handling for RFCs 1272 and below, to apply the
    single initials handling enforced at that time.

 -- Henrik Levkowetz <henrik@levkowetz.com>  08 Apr 2019 04:16:58 -0700


xml2rfc (2.22.2) ietf; urgency=medium

  This release fixes a couple of issues discovered by users who are now
  starting to excercise the v3 processing chain.  Thanks for reporting
  bugs!  From the commit log:

  * Fixed an issue with xref rendering where the 'pageno' parameter had 
    been given a non-numeric default value.  Fixes issue #399.

  * Removed an unnecessary docker volume binding.

  * Added slightly more verbosity when converting v2v3, and tweaked an 
    import statement.

  * Fixed an issue with <references> sections where duplicate name entries 
    could be created during the prep phase, leading to schema validation 
    failure.  Fixes issue #398.

 -- Henrik Levkowetz <henrik@levkowetz.com>  27 Mar 2019 02:52:14 -0700


xml2rfc (2.22.1) ietf; urgency=medium

  * Fixed an issue with section title rendering when there are comments 
    between <section> and <name/>.

  * Added a DTD approximation to the v3 schema.  It omits sschema for SVG
    and does not permit text content without <t> inside blockquotes, table
    cells, and list elements, as the full RelaxNG for this cannot be
    translated to the DTD format.  This DTD is not used by xml2rfc, but
    is provided as part of the distribution in order to make it available
    to legacy tools.

 -- Henrik Levkowetz <henrik@levkowetz.com>  25 Mar 2019 07:11:55 -0700


xml2rfc (2.22.0) ietf; urgency=medium

  This release adds pagination of internet-drafts in --v3 --text mode.  It
  does not affect text output of RFCs, which remains unpaginated.  There
  are also some changes in order to make generated html validate in the
  W3C validator (validator.w3.org), and other bugfixes.

  Details from the commit log:

  * Tweaked the makefile to provide better diffs.

  * Did a substantial refactoring of the text formatter, to carry 
    information of the origin element of each line of code down to the 
    generated text level, in order to be able to correctly implement page 
    breaking for tables and keepWith* labelled elements.  Added page
    breaking for drafts, and added page numbers to the Table of Contents
    when in page breaking mode.

  * Moved warnings for missing <rfc> docName attributes from v3 renderers 
    to preptool, in order to always issue these warnings.

  * Fixed a problem with local file name resolution that prevented the use 
    of xinclude href without path.

  * Removed invalid CSS, and tweaked the invisible space above H* in order 
    not to overlay links in earlier text.

 -- Henrik Levkowetz <henrik@levkowetz.com>  22 Mar 2019 06:01:47 -0700


xml2rfc (2.21.1) ietf; urgency=medium

  This is a bugfix release, containing a number of fixes and adjustments
  in response to issues reported by the RFC Editor staff.  Excerpt from
  the commit log:

  * Fixed an incorrect <u> format in a test file.

  * Broadened the handling of <svg> viewBox attribute values, to permit 
    commas and enclosing parentheses.

  * Added some missing default_options settings.  Moved the calculation of 
    various element tag sets (inline tags, for instance) out of the 
    BaseV3Writer class to avoid doing the same thing repeatedly when not 
    necessary.

  * Fixed a flawed check for the presence of at least one required element 
    in the <u> format specification.

  * Added a z-index setting to avoid links being overlaid by h* padding 
    stretching up over previous elements.

  * Added a new option --no-pagination, and a startup check for missing 
    default options.

 -- Henrik Levkowetz <henrik@levkowetz.com>  11 Mar 2019 18:19:51 +0100


xml2rfc (2.21.0) ietf; urgency=medium

  This release introduces the switch --no-org-info to control the display
  of author organization information on the front page, for vocabulary v2
  documents, and the <organization> attribute "showOnFrontPage" to do the
  same for v3 documents.  The handling is different for the two in order
  to avoid retrofitting new attributes to the v2 DTD.  From the commit
  log:

  * Added support for a --no-org-info switch, to suppress organization 
    rendering on the first page for v2 renderers.

  * Added support for the showOnFrontPage attribute to v3 renderers, and a
    test case for the showOnFrontPage attribute.

  * Added <organization> attribute "showOnFirstPage" (default "true") to 
    the schema.

 -- Henrik Levkowetz <henrik@levkowetz.com>  04 Mar 2019 09:46:32 -0800


xml2rfc (2.20.1) ietf; urgency=medium

  * Handle initials==Null return value from short_author_name_parts().  
    Fixes issue #397

 -- Henrik Levkowetz <henrik@levkowetz.com>  27 Feb 2019 05:14:17 -0800


xml2rfc (2.20.0) ietf; urgency=medium

  This release changes the rendering of <xref> elements with text content by
  v3 formatters, and reintroduces <xref format="none"> under v3 in order to
  properly cover the combinatorial space of rendering of <xref> with and
  without text content.  It fixes a number of issues, including a somewhat
  unexpected issue with namespace normalization, and improves the rendering
  output in some edge cases.  More details from the commit log:

  * Removed namespace cleanup and normalisation during the v2v3 conversion, as
    it can have negative effects for inlined <svg> when the SVG namespace is
    specified in multiple places.

  * Changed handling of reference//author entries with fullname but without
    initials and surname in order to derive those the same way for references
    as it's done in other places.

  * Dropped support for Py34.  Support is now Py27 (untill end 2019), and
    Python 3.5 - 3.7.

  * Tweaked the CSS for bcp14 keyword elements.

  * Fixed a problem where a temporary valuable name stomped on a 
    method-wide name.

  * Fixed a problem where <xref> "relative" attributes were treated as 
    fragment identifiers instead of as relative URL paths.

  * Improved the placeholder text emitted by the v3 text renderer for 
    artwork without ascii-art.

  * Removed stripping of the now (again) functional <xref> format value "none"
    from the v2v3 converter.

  * Tweaked the rendering of <xref> having both derivedContent (section
    information, for instance) and text content, to generate hyperlinks to the
    xref target for both of them.  Simplified the html renderer by eliminating
    extra code for <relref>, now covered by the generic <xref> code.

  * Fixed a problem with a missing hash character between path and fragment 
    identifiers in derivedLink generation.

  * Added a conversion of <relref> elements to the generic <xref> form to 
    preptool.  Tweaked a debug print statement.

  * Added An SVG diagram of the processing flow for v2 and v3 documents, used
    by xml2rfc3.rst, to doc/

  * Added an rST-formatted Introduction to xml2rfc version 3 to doc/

 -- Henrik Levkowetz <henrik@levkowetz.com>  26 Feb 2019 13:23:22 -0800


xml2rfc (2.19.1) ietf; urgency=medium

  This is a small bugfix release.  From the commit log:

  * Removed some linux-specific code.

  * Fixed a problem with the handling of comments and PIs inside text 
    blocks.

 -- Henrik Levkowetz <henrik@levkowetz.com>  16 Feb 2019 14:22:44 -0800


xml2rfc (2.19.0) ietf; urgency=medium

   **Changed handling of alternative artwork**

   The way <artwork> has been specified to handle the presence of both
   SVG artwork and text fallback (in Section 2.5 of [RFC7991]) has the
   result that any SVG content has to be placed as a data: URL in the
   "src" attribute when an ascii-art fallback is present.  This makes
   the SVG effectively uneditable once the preptool has been run, even
   if the SVG artwork was originally provided as a regular SVG XML file
   external to the document XML file.

   In order to be able to more easily deal with alternative instances of
   artwork, and in the future possibly deal smoothly with a wider number
   of alternative artwork formats than is currently provided for, a new
   element <artset> could be introduced, presenting a set of alternative
   artwork executions.  This would let the renderer pick the most
   appropriate <artwork> instance for its format from the alternatives
   present within an <artset> element, based on the "type" attribute of
   each enclosed <artwork> element.

   If more than one <artwork> element is found within an <artset>
   element, with the same "type" attribute, the renderer could select
   the first one, or possibly choose between the alternative instances
   based on the output format and some quality of the alternative
   instances that made one more suitable than the other for that
   particular format, such as size, aspect ratio, or whatnot.

   Implementation:  Xml2rfc as of version 2.18.0 implements this, with a
      preference list when rendering to HTML and PDF of ( "svg",
      "binary-art", "ascii-art" ), while the text renderer uses the list
      ( "ascii-art", ) -- i.e., one entry only.  The Relax-NG compact
      schema used for <artset> is this::

        artset =
          element artset {
            attribute xml:base { text }?,
            attribute xml:lang { text }?,
            attribute anchor { xsd:ID }?,
            attribute pn { xsd:ID }?,
            artwork*
          }

      The <artset> element can occur anywhere an <artwork> element can
      occur.  The first anchor on an <artwork> element within an
      <artset> element will be promoted to the <artset> element if it
      has none; apart from that, anchors on <artwork> elements within an
      <artset> element will be removed by the preptool.

   Additionally, this release contains some other fixes and changes.  From
   the commit log:

  * Normalized the expansion of <xref> to be more consistent conceptually 
    and across renderings.  Added back rendering support for format='none'.

  * Added another exception class to the import exception catch for pango,
    to avoid a crash in some environments.

  * Applied a patch from rjs@nostrum.com to improve the xml2rfc description.

  * Disallow lxml 4.3.1, as it can cause segfaults with some Python 
    versions.  Fixes issue #393.

  * Put back LICENCE which has been lost from the source distribution tarball
    at some point.

  * Adjusted the <xref format="counter"/> output for appendices.

  * Added code to remove any usage of Unicode U+2028 LINE SEPARATOR from the
    text output also in legacy mode.

  * Fixed a problem with the text format rendering of <xref> for an appendix.

  * Added a get_element_tags() method in BaseV3Writer, and commented out 
    some debug code.

  * Removed a warning about missing country that would appear even if no 
    <address> or <postal> was supplied.

 -- Henrik Levkowetz <henrik@levkowetz.com>  14 Feb 2019 06:19:36 -0800


xml2rfc (2.18.0) ietf; urgency=medium

  This release provides additional support for <referencegroup> rendering, and
  and adds validation of fetched reference files before they are used or put
  in the reference cache.  A warning for un-cited references was added to the
  preptool; this has been present for v2 renderers for a long time, but was
  absent from the v3 specification.  A number of bugs have also been fixed.
  From the commit log:

  * Fixed an issue with the v3 html renderer when given an author without 
    an address entry.  Fixes issue #390.

  * Fixed a bug in the HTML renderer's SVG reading exception code.  Added
    support for a <referencegroup> target attribute, and suppression of target
    URLs for indivudual entries within a <referencegroup>.

  * Adjusted the text rendering of reference annotations to match the html 
    rendering better.  Added support for <referencegroup> target rendering.  
    Suppressed rendering of target URLs for individual entries in a 
    referencegroup.

  * Added a preptool check for reference citations, as earlier provided by v2
    renderers.  Made the reference section numbering code more general, to
    support additional levels in the future.

  * Added an attribute 'target' to <referencegroup>, in order to be able to
    link out to for instance IETF STD and BCP documents.

  * Added ValueError to the exceptions caught on 'import weasyprint' as a 
    workaround for a problem in Python's locale.py file under 3.7.

  * Added the Python version to the version list emitted with --version 
    --verbose.

  * Added validation of included reference files before usage, to prevent
    html files fetched from dns-spoofing captive portals from being used.

 -- Henrik Levkowetz <henrik@levkowetz.com>  06 Feb 2019 13:38:33 -0800


xml2rfc (2.17.2) ietf; urgency=medium

  * Added a v3 text renderer for <referencegroup>, and made it possible to 
    refer to a reference group anchor with <xref>.

 -- Henrik Levkowetz <henrik@levkowetz.com>  28 Jan 2019 14:01:17 -0800


xml2rfc (2.17.1) ietf; urgency=medium

  This release addresses a couple of issues with SCG rendering in HTML and
  PDF formats, pointed out by sginoza@amsl.com, and adds testing under
  Python 3.7:

  * Added code to add missing <svg> element attribute viewBox, and scale 
    down large svg images for use in html and pdf renderings.  Added an error 
    case when the svg element doesn't contain sufficient information (width and 
    height, or viewBox) to do so.  This improves the rendering in general, and 
    in particular lets the PDF rendering show the full image, which was not 
    always the case when viewBox was missing for a large image.

  * Added Python 3.7 to the tox test settings.

 -- Henrik Levkowetz <henrik@levkowetz.com>  23 Jan 2019 09:08:28 -0800

xml2rfc (2.17.0) ietf; urgency=medium

  * Added rudimentary support for ipr="none", in order to not shut out other
    standards bodies, such as the OpenID Foundation, that uses xml2rfc to
    produce documents.  Idnits will make sure documents produced with
    ipr="none" are not used in IETF submissions.

  * Updated docker/* files with additional packages, tweaks to permit docker
    builds to discard cache, and other minor changes.

  * Changed the url used to set xml:base in cached reference files to use 
    the actual retrieval url, rather than the initially requested url, in order 
    to correctly reflect redirects.  Also added some related messages when 
    running with --verbose.

  * Added a comment in v2v3 converted xml output giving the converter version,
    and made sure the root element always has a declaration of the XInclude
    namespace to make later insertion of <xi:include/> statements easy.

 -- Henrik Levkowetz <henrik@levkowetz.com>  21 Jan 2019 04:17:48 -0800


xml2rfc (2.16.3) ietf; urgency=medium

  This release fixes a number of bugs in the v3 output formats, found thanks
  to review and testing done by the RFC Production Center (Alice, Sandy,
  and Megan).  Thanks!

  * Added CSS styling to avoid page breaks inside dl entries (which implies
    not breaking a reference entry) and inside author address entries.  Also
    added styling to avoid line breaks in reference URLs.  This fixes a number
    of line- and page-break issues in the PDF output.

  * When rendering a reference, don't run seriesInfo name and value together;
    separate with a space.

  * Added a missing colon to the Figure and Table captions when caption text
    has been specified.

  * Provided boilerplate templates as xml instead of as a text/plain blob
    internally, in order to make boilerplate URLs render as links in formats
    that supports it.

  * Added missing section numbers in the HTML output of reference sections.

  * Removed stripping of leading and trailing whitespace from <sourcecode>
    content.

  * Added 'RFC NNNN: ' to the HTML document title for RFCs.

  * Added code to prevent line-breaking of reference tags containing dash
    in the text format.

  * Fixed rendering of author names in authors' addressses section when the
    <address> element does not have a <postal> child element.

  * Fixed an issue with missing whitespace in text rendering of references 
    with reference tags of length 9.

  * Fixed an issue where TLP version 4.0 was used instead of 5.0 used by
    preptool when inserting boilerplate text, causing the use of http://
    instead of https:// URLs in modern document boilerplate.

  * Silenced some warnings that could occur during xml2rfc startup, triggered
    by pdf lib imports when the available external libs have old versions.

  * Fixed a bug in preptool.check_attribute_values(), and added code to strip
    leading and trailing whitespace for attribute values where whitespace is
    not meaningful.  This will cause accidentally included leading and
    trailing whitespace to be accepted (with a comment during the preptool
    phase).

 -- Henrik Levkowetz <henrik@levkowetz.com>  13 Jan 2019 10:02:42 -0800


xml2rfc (2.16.2) ietf; urgency=medium

  * Added exception handling for a command in setup.py that may fail in 
    some circumstances.

 -- Henrik Levkowetz <henrik@levkowetz.com>  08 Jan 2019 23:46:06 +0000

xml2rfc (2.16.1) ietf; urgency=medium


  This is a minor release. prompted mostly by a change in the BaseV3Writer
  class in order to better be able to override logging when subclassing it.

  * Updated docker files.

  * Refactored some logging functionality.

  * Tweaked BaseV3Writer to make it possbile to override all error output.

  * Added a __str__ method for an exception class, and fixed an error case 
    return value.

  * Tweaked the mkrelease script

 -- Henrik Levkowetz <henrik@levkowetz.com>  08 Jan 2019 14:53:09 +0000

xml2rfc (2.16.0) ietf; urgency=medium

  This release provides support for generation of xml2rfc PDF output.
  However, a default pip install will only install the xml2rfc module
  itself; additional installation work is needed to enable PDF generation:

  In order to generate PDFs, xml2rfc uses the WeasyPrint module, which
  depends on external libaries that must be installed as native packages
  on your platform, separately from the xml2rfc install.

  First, install the Cairo, Pango, and GDK-PixBuf libs on your system.
  See installation instructions on the WeasyPrint Docs:

      https://weasyprint.readthedocs.io/en/stable/install.html

  (Python 3 is not needed if your system Python is 2.7, though).

  (On some OS X systems with System Integrity Protection active, you may
  need to create a symlink from your home directory to the library installation
  directory (often /opt/local/lib):

      ln -s /opt/local/lib ~/lib

  in order for weasyprint to find the installed cairo and pango libraries.
  Whether this is needed or not depends on whether you used macports or
  homebrew to install cairo and pango, and the homebrew / macport version.)

  Next, install the pycairo and weasyprint python modules using pip.
  Depending on your system, you may need to use 'sudo' or install in
  user-specific directories, using the --user switch.  On OS X in particular,
  you may also need to install a newer version of setuptools using --user
  switch before weasyprint can be installed.  If you install with the --user
  switch, you may also need to set PYTHONPATH in your shell environment, e.g.,

      PYTHONPATH=/Users/username/Library/Python/2.7/lib/python/site-packages

  for Python 2.7.

  The basic pip command (modify as needed according to the text above) is:

      pip install 'pycairo>=1.18' 'weasyprint<=0.42.3'

  With these installed and available to xml2rfc, the --pdf switch will be
  enabled.

  For correct PDF output, you also need to install the Noto font set.
  Download the full set from:

    https://noto-website-2.storage.googleapis.com/pkgs/Noto-unhinted.zip,

  and install as appropriate for your platform.

 -- Henrik Levkowetz <henrik@levkowetz.com>  22 Dec 2018 15:58:44 +0000


xml2rfc (2.15.5) ietf; urgency=medium

  * Added code to look for input marked as v3, and process that as v3 
    without requiring an explicit --v3 switch.  This should make it easier to 
    transition to v3 draft submissions.

  * Fixed a bug related to cref handling.  Fixes issue #389.

  * Ensured propagation of options to parser and url resolver, and improved 
    the error message for externals without .xml extension that give 404.

  * Fixed an include without explicit extension in a test input file, in 
    order to work with the stricter v3 formatter include processing.

 -- Henrik Levkowetz <henrik@levkowetz.com>  21 Dec 2018 09:34:14 -0800

xml2rfc (2.15.4) ietf; urgency=medium

  * Tweaked the mkrelease script to prevent inclusion of temporary editor 
    files.

  * Fixed a problem with string vs byte for referece file output.

  * Added a limitation on the intervaltree requirements to avoid a broken
    version.

 -- Henrik Levkowetz <henrik@levkowetz.com>  18 Dec 2018 09:08:00 -0800

xml2rfc (2.15.3) ietf; urgency=medium

  This release fixes some issues found when running the html renderer over
  a corpus of all drafts submitted with xml format over the last 30 days,
  and an installation issue.

  * Handled utf-8 reloading in setup.py under py27 without using six, which 
    might be unavailable before the installation completes.

  * Always convert python lists to comma-separated strings before calling 
    on i18n address validation.

  * Added some guards to prevent operations on None.

 -- Henrik Levkowetz <henrik@levkowetz.com>  05 Dec 2018 06:24:35 -0800


xml2rfc (2.15.2) ietf; urgency=medium

  * Added a v3 version of the expansion renderer, to handle xi:include 
    processing and prettify the output for v3 xml files.

  * Fixed an issue with blank lines around the text rendering of artwork.

  * Introduced new pretty-print code which provide better indentation
    consistency between beginning and end tags.

  * Added a html() method to the html writer, for library model use, and did
    some minor refactoring.

  * Added a missing file.

 -- Henrik Levkowetz <henrik@levkowetz.com>  02 Dec 2018 15:20:03 -0800


xml2rfc (2.15.1) ietf; urgency=medium


  * Added downcoding of punctuation followed by wrapping of other non-ascii 
    text in <u> for the v2v3 converter.

  * Added BaseV3Writer methods: downcode() and downcode_punctuation(), 
    get_text_tags() and get_inline_tags() (works this out from the schema), and 
    added a list of deprecated elements.

  * Fixed a typo in an error message.  Added asciification of smart quotes 
    and other punctuation for the v3 renderers  to match that done for v2.  
    Some class refactoring.

  * Changed the workaround for non-ascii metadata in setup.py to only be 
    active under py2.  Fixes a problem with setup.py under python 3.x

  * Reverted [2786], which permitted non-ascii characters inside artwork
    for the v2 renderers, but broke when trying to write to file without
    utf-8 encoding.  Fixes issue #387.

 -- Henrik Levkowetz <henrik@levkowetz.com>  01 Dec 2018 12:18:46 -0800


xml2rfc (2.15.0) ietf; urgency=medium

  * Added support for a new element <u>, to be used to insert unicode in
    protocol descriptions.

    In xml2rfc vocabulary version 3, the elements <author>,
    <organisation>, <street>, <city>, <region>, <code>, <country>,
    <postalLine>, <email>, and <seriesInfo> may contain non-ascii
    characters for the purpose of rendering author names, addresses, and
    reference titles correctly.  They also have an additional "ascii"
    attribute for the purpose of proper rendering in ascii-only media.

    In order to insert Unicode characters in any other context, xml2rfc v3
    formatters now require that the Unicode string be enclosed within an <u>
    element.  The element will be expanded inline based on the value of a
    "format" attribute.  This provides a generalized means of generating the 6
    methods of Unicode renderings listed in RFC7997, Section 3.4
    (http://rfc-editor.org/rfc/rfc7997.pdf), and also
    several others found in for instance the RFC Format Tools example
    rendering of RFC 7700, at 
    <https://rfc-format.github.io/draft-iab-rfc-css-bis/sample2-v2.html>.

    The "format" attribute accepts either a simplified format
    specification, or a full format string with placeholders for the
    various possible unicode expansions.

    The simplified format consists of dash-separated keywords, where each
    keyword represents a possible expansion of the unicode character or
    string; use for example ``<u "lit-num-name">foo</u>`` to expand the text to
    its literal value, code point values, and code point names.

    A combination of up to 3 of the following keywords may be used,
    separated by dashes: "num", "lit", "name", "ascii", "char".  The
    keywords are expanded as follows and combined, with the second and
    third enclosed in parentheses (if present):

       "num"
	  The numeric value(s) of the element text, in U+1234 notation

       "name"
	  The unicode name(s) of the element text

       "lit"
	  The literal element text, enclosed in quotes

       "char"
	  The literal element text, without quotes

       "ascii"
	  The provided ASCII value

    In order to ensure that no specification mistakes can result for
    rendering methods that cannot render all unicode code points, "num"
    must always be part of the specified format.

    The default value of the "format" attribute is "lit-name-num".

    For instance:

       format="lit-name-num":
	  Temperature changes in the Temperature Control Protocol are
	  indicated by the character "Δ" (GREEK CAPITAL LETTER DELTA,
	  U+0394).

    If the <u> element encloses a Unicode string, rather than a single
    code point, the rendering reflects this.  The element::

       <u format="num-lit">ᏚᎢᎵᎬᎢᎬᏒ</u>

    will be expanded to 'U+13DA U+13A2 U+13B5 U+13AC U+13A2 U+13AC U+13D2
    ("ᏚᎢᎵᎬᎢᎬᏒ")'.

    In order to provide for cases where the simplified format above is
    insufficient, without relinquishing the requirement that the number of a
    code point always must be rendered, the "format" attribute can also accept
    a full format string.  This format uses placeholders which consist of any
    of the key words above enclosed in in curly braces; outside of this, any
    ascii text is permissible.  For example::

       The <u format="{lit} character ({num})">Δ</u>.

    will be rendered as::

       The "Δ" character (U+0394).

  * Added support for v3xml2rfc PIs that silence notices and warnings.  For
    instance, adding::

	<?v3xml2rfc silence="The document date .* is more than 3 days" ?>

    in front of a <date> element with an old date will suppress the warning
    message about an outdated date.  If the value of the silence attribute
    matches the start of a notice or warning message, as a string or as a
    regex, the message is suppressed.

  * Some warnings have been downgraded to notices, and can be suppressed with
    a --quiet switch.

  * Added header and footer information for the tentative support for the 
    W3C Paged Media Module described in RFC 7992, Section 6.4.

  * Added support for older versions of pycountry.

  * Added more information to the --version display when used with --verbose.

 -- Henrik Levkowetz <henrik@levkowetz.com>  30 Nov 2018 10:04:45 -0800


xml2rfc (2.14.1) ietf; urgency=medium

  * The v3 attribute xml:base of <reference> is not compatible with the v2
    DTD.  Added xml:base to the DTD for <reference> in order to be able to
    work from the same reference cache for v2 and v3, without backing out
    the issue #381 resolution.

 -- Henrik Levkowetz <henrik@levkowetz.com>  23 Nov 2018 13:39:07 -0800

xml2rfc (2.14.0) ietf; urgency=medium

  * Added missing '(if approved)' annotations for obsoleted and updated lines
    in v3 html rendering of drafts.

  * Fixed the case of appendix section numbers in v3 html output.

  * Removed rfc2629 dtd validation for input files with <rfc version="3"> set.

  * Tweaked the lxml resolver callback to not accept xi:include names lacking
    an '.xml' extension under v3.  Added setting of xml:base before caching
    xi:include content, in order to not loose the origin.  Fixes issue #381.

  * Sorted the entries in requirements.txt lexicographically.

  * Added a check for duplicate id attribute values after each include of svg
    content into generated html, as duplicates may cause display problems with
    some browsers.

  * Added back the ability to place <iref> elements in a location where they 
    will translate to invalid HTML.  Avoided invalid HTML by pushing the span 
    up one level, as a previous sibling, when needed.  Fixes issue #378.

 -- Henrik Levkowetz <henrik@levkowetz.com>  23 Nov 2018 08:25:52 -0800


xml2rfc (2.13.1) ietf; urgency=medium

  * Filled in missing rendering values for the case when cref is being 
    rendered in inline context in the v3 text renderer.  Fixes issue #380.

  * Under python 3.6, dictionary keys() return a set-like object that 
    cannot be indexed.  Convert to list for our purposes.  Fixes issue #379

  * Remove the 'alt' attribute on <artwork> with SVG after setting <desc>.

  * Fixed an issue with missing svg namespace when inserting <desc>.

 -- Henrik Levkowetz <henrik@levkowetz.com>  17 Nov 2018 09:07:14 -0800


xml2rfc (2.13.0) ietf; urgency=medium

  This release provides an number of improvements.  Rendering of all v3
  elements should now be in place for the v3 text and html formatters, and
  the renderers have been updated to follow the issue resolutions so far.
  A bug in the generation of boilerplate for BCPs has been fixed.  Feedback
  on unexpected postal address data has been improved, as has feedback on
  unexpected combinations of stream, category, and consensus settings.

  Details from the commit log:

  * In the html formatter:

    - Added indentation support for <dl> to the v3 html renderer.  

    - Fixed a bug in the display of author names in the author addresses
      section when no postal information is given.  

    - Improved <eref> rendering for the case when no eref text is provided.  

    - Corrected the anchor placement for slugified names of figures and
      tables.  

    - Added support for <referencegroup>.  

    - Added a missing CSS class for <seriesInfo> rendering.  

    - Added support for right and center alignment of tables.

  * In the text formatter:

    - Added v3 text formatter support for rendering of blockquote and cref.  

    - Minor other tweaks.

  * In the preptool: 

    - Added support for <referencegroup> elements.  

    - Added support for the <rfc> version attribute.  

    - Fixed a string formatting bug.  

    - Added attribute valididty checking for integer-valued attributes.  

    - Removed the forced inclusion of day for RFC publication dates, reverting
      to permitting publication with only year and month.

    - Added more sophisticated checking and setting of consensus, based on
      what is valid for the given stream and category.  

    - Refined the handling when given input that already contains boilerplate,
      authors addresses and index.

  * In the v2v3 converter:

    - Added setting of the <rfc> version attribute.

    - Removed dubious elimination of <format> elements pointing to alternative
      reference URLs.

    - Fixed a couple of instances of buggy error reporting.

  * Changed util.postal.get_normalized_address() to return a filled-in adr 
    structure even if no country could be identified, for more consistent code 
    in other places.

  * In the Relax NG schema files:

    - Changed the v3 schema default value for <dl> newline so that the effect 
      is the same as for the old 'hanging' default value.

    - Added a 'derivedAnchor' attribute for <referencegroup>, matching that of
      <reference>.

  * In the CSS style sheet:

    - Changed the CSS class for Reference Section definition lists from
      'reference' to 'references'.  

    - Added styling for table alignment and
      applied the same styling for table labels as for figure labels.

  * Added bcp14, em, iref, strong, sub, and sup to the permitted elements 
    in <name>.

  * Fixed some issues with the error messages for combinations of stream, 
    category, and consensus.

  * Added code to honour the "display" attribute of <cref>.

  * Added a preptool action to check the <rfc> attributes submissionType 
    (i.e., stream), category, and consensus for validity.  Invalid combinations 
    are called out, and warnings are issued about setting missing settings to 
    default values.

  * With v2 formatters, treat consensus for BCPs the same way as STD 
    documents, 

  * Refactored some logging and address functionality, improved address
    warnings and other address-related tweaks.

 -- Henrik Levkowetz <henrik@levkowetz.com>  17 Nov 2018 05:24:27 -0800

xml2rfc (2.12.3) ietf; urgency=medium

  This release fixes a schema issue.

 -- Henrik Levkowetz <henrik@levkowetz.com>  30 Oct 2018 15:11:30 -0700


xml2rfc (2.12.2) ietf; urgency=medium

  This bugfix release corrects a default setting for --v3 modes so they do not
  try to apply DTD validation.  It refines the internationalised address
  layout, and does re-factoring in a number of places.  Non-Latin author names
  and addresses in Right-To-Left scripts are now properly aligned in the
  Authors' Addresses section.  It also fixes an issue where needLines PI
  settings were ineffectual under python2.7, and caused exceptions under
  python3.5 and higher.  

  Excerpted from the commit log:

  * Changed the HTML renderer to properly place organisation in i18n 
    address layout, and added back the role indication that was lost in 
    previous i18n address layout work.

  * Updated run.py to apply the --no-dtd option to all --v3 formats, fixing 
    an issue in 2.12.1 with running --html --v3 on a converted --v2v3 file.

  * Fixed an issue with needLines when set to a string value.

  * Added simple bidi-support to author addresses, in order to have 
    addresses in right-to-left scripts align properly.  Fixed a bug in the 
    handling of non-Latin address information.

  * Tweaked the vcard width to avoid having author names and addresses in 
    right-to-left script end up far to the right, away from the ASCII 
    information.

 -- Henrik Levkowetz <henrik@levkowetz.com>  30 Oct 2018 15:02:12 -0700


xml2rfc (2.12.1) ietf; urgency=medium

  This release provides some additional polish over release 2.12.0, and also a
  few bugfixes.  The primary focus for this release has been HTML compliance
  based on the W3C validator at https://validator.w3.org/.  Valid HTML 5 is
  now generated for all documents used during testing.  From the commit log:

  * Fixed a number of issues with the v3 html renderer, to improve the 
    generated html.  Many of these were caught by the W3C validator at validator.w3.org:

    - removed the <meta http-equiv="Content-Type" ...> element, as it should
      not appear when there is a <meta charset=...> element

    - removed type="text/javascript" from a <script> element (superfluous)

    - removed a number of extraneous wrapping divs with identical id attributes

    - corrected the generation of <dt><dd> items for xml <ol> entries with
      percentage list types

    - removed some attributes on html entries for xml <ol> lists that had
      incorrectly been transferred from the xml

    - corrected the block element generated for <references> to <section>

    - fixed an issue where <xref> in <name> would generate nested html <a>
      elements

  * Also fixed some other issue:

    - added a newline tail for block elements, to improve readability

    - added missing space between author name and (editor)

    - fixed the renderer for <note> to generate html <section> elements with
      the right class attribute

    - refactored the generation of enclosing divs to hold id="$anchor" to be
      more consistent, with less code

    - modified the rendering of <xref> with text content to more closely match
      the historic rendering

  * Updated python-version specific test masters.  Tox runs for py27, py34,
    py35, and py36 aren now all clean.

  * Changed some invalid <link> rel= values to valid ones in the preptool

  * Tweaked the list of html block-level elements we use to control <div>
    wrapping

  * Disallowed <iref> as a direct child of <table> in the schema, as it
    results in invalid html with the rendering specified in RFC 7992.

 -- Henrik Levkowetz <henrik@levkowetz.com>  29 Oct 2018 05:19:31 -0700


xml2rfc (2.12.0) ietf; urgency=medium

  This release introduces the vocabulary v3 html formatter.  In order to
  invoke this formatter, use the regular --html switch for html output, and
  add the --v3 switch to specify the v3 html formatter.

  In v3 html formatter mode, xml2rfc accepts any valid xml2rfc input file, but
  since the actual formatter only understands the XML elements and attributes
  which have not been deprecated by RFC7991, it first applies the xml2rfc v2v3
  converter in order to transform any deprecated markup to the elements and
  attributes it understands, and then applies the preptool in order to
  normalize the input before it starts rendering.

  This is the first release of the v3 html formatter.  It is quite feature
  complete, but has been tested only on a limited number of documents, so
  expect that there could be some rough edges.

  In building the html v3 formatter, a number of rough edges were also
  discovered in the schema, RFC 7991; html format output, RFC 7992; and
  preptool specification, RFC 7998.  The modifications applied in the code
  are described in draft-levkowetz-xml2rfc-v3-implementation-notes-05.

 -- Henrik Levkowetz <henrik@levkowetz.com>  28 Oct 2018 13:47:19 -0700


xml2rfc (2.11.1) ietf; urgency=medium

  * Changed linebreaking for URLs in boilerplate and references to the old 
    behaviour (don't break), added stream abbreviations according to RFC5741, 
    and changed EMail: to Email: in RFC mode.

  * Added the align attribute for element <table> to the schema.

  * Changed the v2v3 converter handling of the table align attribute, and 
    fixed an issue with lost whitespace after <spanx>.

  * Added STD to the seriesInfo sort order list.

  * Added an error message for <date> month content that is neither a month 
    name or a number.

 -- Henrik Levkowetz <henrik@levkowetz.com>  11 Oct 2018 08:30:03 -0700


xml2rfc (2.11.0) ietf; urgency=medium

  This release is a result of the issue discussions on xml2rfc-dev, and
  attempt to follow the discussion and projected resolution of issues #36-#40.
  This results in a number of incompatibilities with previous releases, with
  respect to the v3 tools, as expected.  The v2 tools are unaffected.
  Details:

  * Changed the default table alignment to 'center', in order to match v2.

  * Changed the <dl> 'hanging' attribute name to 'newline', based on the 
    discussion of issue #38, in the schema, v2v3 converter and text formatter.

  * Added an attribute 'indent' to <dl> in the schema, according to the 
    discussion of issue #39.  Added v2v3 and text support for the same.

  * Added markers='true' in the v2v3 converter for sourcecode with markers,
    and tweaked render_sourcecode() to honour the 'markers' setting.

  * Removed the disallowed align attribute on sourcecode.

  * Removed <br> from the schema, according to the resolution of issue #37.

  * Tweaked the handling of the document title to only reflow if needed, 
    with some refactoring.

  * Corrected the handling of the align attribute on <artwork> and <figure>.

  * Changed <prepTime> to hold an RFC 3339 timestamp with seconds 
    resolution.

  * Fixed a couple of issues with v2v3 conversion warnings, and added 
    source line information for all elements created during conversion.

  * Fixed a buglet in sourcode rendering.

  * Added a warning about lxml versions that lack validation error xpath 
    information, and tweaked the warn() method.

 -- Henrik Levkowetz <henrik@levkowetz.com>  07 Oct 2018 12:52:24 -0700


xml2rfc (2.10.3) ietf; urgency=medium

  This bugfix release works around a problem with lxml versions before 3.8.0,
  and brings some other fixes and tweaks:

  * Tweaked validation output to not break if validation error log elements
    lack xpath information. Fixes issue #376.  (lxml<3.8.0 does not provide
    the xpath of the offending element in error.path).

  * Fixed a couple of issues with v2v3 conversion warnings, and added 
    element sourceline information for all elements created during conversion.

  * Fixed a buglet in sourcode rendering.

  * Added a warning about lxml versions that lack validation error xpath 
    information, and tweaked the warn() method.

  * Tweaked the rendering of <eref>.

  * Added <blockquote> to the list of block level elements in isblock().

  * Added some values to xml2rfc.base.default_options, necessary when using 
    xml2rfc as a library module (i.e., not getting options from run.py through 
    command-line invocation).

  * Added attribute markers="true"|"false" to <sourcecode> and changed the v3
    text formatter to only output code markers if <sourcecode> has attribute
    markers set to true.

 -- Henrik Levkowetz <henrik@levkowetz.com>  22 Sep 2018 09:28:09 -0700


xml2rfc (2.10.2) ietf; urgency=medium

  * Added a full listing of validation errors found, rather than just the
    first, when running v3 validation on an (possibly v2v3 converted) input
    file in preptool.  Also improved the error messages by providing the xpath
    to the offending element.

  * Added normalization of RFC 2119 phrases before checking for validity, and
    updated tests files to include a <bcp14> test.

  * Fixed several places where unexpected input could cause exceptions.  
    Also turned the invalid input document warning into an error.  Fixes issue 
    #375.

  * Preserved the element tail when rendering <bcp14>.  Fixes issue #374.

  * Fixed an issue where an empty <references/> section could cause an 
    exception in the v2 text formatter.

 -- Henrik Levkowetz <henrik@levkowetz.com>  19 Sep 2018 07:42:06 -0700


xml2rfc (2.10.1) ietf; urgency=medium

  This is primarily a bugfix release, to handle issues people have reported
  with the new vocabulary v3 text formatter:

  * Fixed an issue where the v2 text formatter could blow up for some v3
    documents, rather than exit with a message.

  * Fixed a problem in the v2v3 converter that could cause an Internet-Draft
    <seriesInfo> element to be inserted even if one was alredy present.

  * Tweaked the <seriesInfo> insertion code slightly, and expanded an error
    message slightly.

  * Fixed a couple of places where bad input could cause exceptions.  Fixes 
    issue #366.

  * Fixed a case where max() could be given an empty sequence.

  * Tweaked the handling of <ul> with structured <li> content.  Fixes issue 
    #365.

  * Improved the handling of <br>.

  * Added render_blockquote().  This fixes issue #359.

  * Fixed a problem in the plaintext formatter where table cells were not 
    filled in if the table was wider than the available width.  Also added 
    support for formatted table cell content.

  * Added a check in preptool for <keyword> elements containing multiple 
    keywords.  Fixes issue #353.

  * Moved the reading of input files to avoid multiple reads.  Fixes issue 
    #352.

  * Added a renderer for <bcp14> elements.

  * Added error messages for empty artwork files.  Tweaked the error 
    message for missing artwork text.  Addresses issue #370

  * Forced no_dtd when running v2v3 to avoid complaints when converting an 
    alredy converted file, and also with the v3 text formatter.

  * Added a try/except around xinclude in order to provide error message  
    without traceback on missing include files.

  * Removed an assert that prevented rendering of document top when some 
    elements are so long that the line width will be more than 72 characters.  
    Added support for <note> with <name>.  Added <xref> format default for 
    included references.  Added a warning for <xref>s without 'pn' attribute 
    (which can happen if the <xref> is pointing at an element for which pn is 
    not generated (this is probably an error in RFC 7998).  Fixes issue #346

  * Tweaked the preptool to handle removeInRFC='true' elements that lacks <t> 
    children.

  * Added xml2rfc-dev@ietf.org to the release notification addresses.

 -- Henrik Levkowetz <henrik@levkowetz.com>  18 Sep 2018 04:31:57 -0700


xml2rfc (2.10.0) ietf; urgency=medium

  This release introduces the vocabulary v3 text formatter.  In order to
  invoke this formatter, use the regular --text switch for text output, and
  add the --v3 switch to specify the v3 text formatter.

  Xml2rfc in v3 text formatter mode accepts any valid xml2rfc input file, but
  since the actual formatter only understands the XML elements and attributes
  which have not been deprecated by RFC7991, it first applies the xml2rfc v2v3
  converter in order to transform any deprecated markup to the elements and
  attributes it understands, and then applies the preptool in order to
  normalize the input before it starts rendering.

  This is the first release of the v3 text formatter, and there are some
  known rough edges and deficiencies:

  - The current table output renders all table borders.  This differs from
    the v2 formatter, and will be remedied in a later release.  The reason
    for doing the first release with this rendering of tables is that the
    table layout options have changed substantially with the possibility of
    using rowspans, and the table layout code is much more complex than for v2
    as a consequence.  With all table borders visible, the initial testing of
    the layout code has been easier than if horizontal borders were not
    rendered.

  - The statement of work for the text formatter coding does not include
    paginated output, and as a consequence the Table of Contents is much less
    informative than it would be if it was able to show the page for each ToC
    entry.

  - The xml2rfc v3 vocabulary (RFC 7991) does not provide 'align' attributes
    for tables, which means that the ability to center and right-align tables
    is lost.  All tables are left-aligned. (Alignment of text within each cell
    is still supported, though.)

  - The index generation (using <iref> elements) has some known issues, which
    will also be fixed in a subsequent release.

  The v3 schema used in this release differs from the schema specified in
  RFC7991 in some respects.  A separate document will be published with
  details about the changes: draft-levkowetz-xml2rfc-v3-implementation-notes.
  The issues leading to the changes will also be entered in the document 
  issue trackers and sent to the xml2rfc-dev mailing list for discussion.

  Feedback on the v3 text formatter will be appreciated.  Please send feedback
  to xml2rfc-dev@ietf.org or henrik@levkowetz.com.

 -- Henrik Levkowetz <henrik@levkowetz.com>  12 Jul 2018 12:34:00 -0700


xml2rfc (2.9.9) ietf; urgency=medium

  * Applied patch from scott@kitterman.com to let run.py run under python 
    3.  Fixes issue #345.

  * Removed cc:codesprints@ietf.org from xml2rfc notifications.

 -- Henrik Levkowetz <henrik@levkowetz.com>  25 Jun 2018 05:06:26 -0700


xml2rfc (2.9.8) ietf; urgency=medium

  * Fixed a problem with release 2.9.7 when processing private mode input
    files

 -- Henrik Levkowetz <henrik@levkowetz.com>  17 Jun 2018 06:39:55 -0700


xml2rfc (2.9.7) ietf; urgency=medium

  * Added 2 warnings for problems with the <rfc/> docName string.

  * Skipped extracting the longest word from empty table columns.

 -- Henrik Levkowetz <henrik@levkowetz.com>  15 Jun 2018 11:41:44 -0700


xml2rfc (2.9.6) ietf; urgency=medium

  * Fixed another <date> issue, where a <date> without a year would generate
    a bad date string.

 -- Henrik Levkowetz <henrik@levkowetz.com>  21 Feb 2018 11:37:58 -0800

xml2rfc (2.9.5) ietf; urgency=medium

  * Fixed an issue where a <date> without a year attribute would generate a
    copyright stanza without year.

  * Tweaked the --version output to include the program name, to be closer 
    to common practice.

 -- Henrik Levkowetz <henrik@levkowetz.com>  21 Feb 2018 05:19:07 -0800

xml2rfc (2.9.4) ietf; urgency=high

  * Fixed a bug in the date output format when no month or numeric month
    is given in <date>.

 -- Henrik Levkowetz <henrik@levkowetz.com>  16 Feb 2018 14:12:11 -0800

xml2rfc (2.9.3) ietf; urgency=medium

  * Changed the way <date> defaults are calculated.  Previously, today's
    date were used to populate missing day if month and year matched, and
    to populate month if year matched.  However, if today's date lay in an
    adjoining month, even if it was within days of that month, the day
    would be set to the first of the given month.  This commit changes that,
    to use the last day of the month instead of the first of the month, if
    the month is the previous month to today's date.  This will result in
    a different derived date than earlier, closer to today's date.  This
    fixes issue #337.

  * Fixed a bug in a preptool.py error message.  Reverted a prettyprinting 
    change which caused inconsistent behaviour between writers.

  * Moved normalize_month() to utils, for use in multiple writers.

  * Made the makefile less verbose.

  * Improved the pretty-printing of v2v3 output.  Fixed a bug in the 
    attribute_xref_target() handler name that prevented it from being called.

  * Removed whitespace normalization from v2v3 writer.

  * Moved handling of exempted default attributes in preptool inside 
    get_attribute_defaults(), for consistency.

  * Added an option --liberal to permit re-processing of prepped source 
    without error exit.  This mode will be needed when we make the preptool 
    part of the default processing pipeline.  Also removed whitespace 
    normalization for v2v3, exp, and preptool output, in order to not change 
    authors' text formatting when not needed.

  * Lowered the requirement on six to 1.4.1 in order to make installation
    easier on some systems with locked system python libs that include six.

 -- Henrik Levkowetz <henrik@levkowetz.com>  15 Feb 2018 06:57:05 -0800


xml2rfc (2.9.2) ietf; urgency=medium

  * Fixed issues with packaging and with execution under python 2.7.  
    Fixes issue #342 and #343.

 -- Henrik Levkowetz <henrik@levkowetz.com>  09 Feb 2018 18:24:35 -0800

xml2rfc (2.9.1) ietf; urgency=medium

  * Boilerplate grammar fix, see https://www.rfc-editor.org/errata/eid5248

 -- Henrik Levkowetz <henrik@levkowetz.com>  09 Feb 2018 15:29:05 -0800

xml2rfc (2.9.0) ietf; urgency=medium

  This release introduces preptool functionality, through a --preptool output
  mode.  With reservation for some points for which issues has been raised,
  this follows the spedicfication in RFC7998.

  The preptool currently takes vocabulary v3 input, and produces prepped
  output.  When work on the text formatter commences, the idea is that the
  input xml source will always be run through v2v3 conversion and preptool
  processing before the output formatting, in order to increase consistency
  and reduce complexity of the output formatter.

  There are also some changes which are not related to the preptool
  functionality: The tox tests have been changed to add testing under Python
  3.6, and removed test runs for Python 3.3.  Although there is no intention
  of breaking compatibility with Python 3.3, it may happen eventually since
  there will not be any release testing with that version of Python.

  The v2v3 converter in some cases could insert <seriesInfo> elements with
  only a name= attribute, because the required seriesNo= attribute on <rfc>
  was missing.  This has been changed.

  In order to work around a debilitating issue with relax-ng validation in
  libxml2 (time to validate increases exponentially with number of attributes
  on the root element: https://bugzilla.gnome.org/show_bug.cgi?id=133736)
  some empty attributes on <rfc> are removed during processing; for instance
  obsoletes="" and updates="".  They don't contribute information, but
  increase validation time with a factor ~20.

  In order to identify the unicode scripts needed to display a document,
  a module to efficiently identify the scripts related to unicode codepoints
  has been written.  The 'uniscripts' module which was originally intended to
  be used for this turned out not to be viable.  The new 'scripts' module can
  be broken out for separate release as a library module, if desired.

  In order to work with vocabulary v3 input, the parser has been slightly
  modified to not do input validation according to rfc2629.dtd if not
  appropriate.

 -- Henrik Levkowetz <henrik@levkowetz.com>  09 Feb 2018 23:52:55 +0100

xml2rfc (2.8.5) ietf; urgency=low

  * Changed a file open under python3 to use the newline= parameter to open()
    instead of the deprecated 'U' mode (thanks to spf2@kitterman.com for
    pointing that out).  Also changed the code to avoid a dangling open file
    handle.

 -- Henrik Levkowetz <henrik@levkowetz.com>  21 Jan 2018 11:47:41 -0800

xml2rfc (2.8.4) ietf; urgency=low

  * Included test.py and tox.ini in the package MANIFEST in order to make 
    testing possible during distro packaging.  Fixes issue #339.

 -- Henrik Levkowetz <henrik@levkowetz.com>  14 Jan 2018 11:08:01 -0800

xml2rfc (2.8.3) ietf; urgency=low

  * Changed the python 3 code that reads in an xml file to read as binary, 
    in order to not run into issues with unicode conversion before we have had 
    time to look at the encoding attribute of the <xml/> element.

 -- Henrik Levkowetz <henrik@levkowetz.com>  04 Jan 2018 05:27:31 -0800


xml2rfc (2.8.2) ietf; urgency=low

  * Modified the V2v3 conversion writer to work with generic lxml.etree
    instances.

  * Fixed a failure that could occur for hanging style lists without hangText
    attributes.

  * Tweaked mkrelease to work without the old tools control files and tools 
    feeds being present.

 -- Henrik Levkowetz <henrik@levkowetz.com>  23 Sep 2017 07:15:37 -0700


xml2rfc (2.8.1) ietf; urgency=low

  This release improves the v2 to v3 conversion of <artwork/> elements
  which contains <CODE BEGINS>; these are now converted to <sourcecode/>
  elements.

 -- Henrik Levkowetz <henrik@levkowetz.com>  18 Sep 2017 05:49:06 -0700

xml2rfc (2.8.0) ietf; urgency=low

  This is a small feature release which changes URLs in boilerplate to
  use https: instead of http:.  There are also some bugfixes.

  * Include notes when doing index processing.  Fixes issue #335.

  * Include erefs with text equal to the URL in the URIs section.  See 
    issue #334.

  * Changed the use of http: to https: in many places.  In the generation 
    of RFCs, the code uses a switchover date of August 21, 2017 when deciding 
    whether to insert http: or https: URLs.  In practice, this means that RFCs 
    with a date of September 2017 or later will get https:.  Also fixed URL 
    line-breaking prevention to apply to https: URLS.  Fixes issue #333.

  * In urlkeep(), prevent breaking also for https:, not only http: URLs

 -- Henrik Levkowetz <henrik@levkowetz.com>  04 Sep 2017 07:54:02 -0700


xml2rfc (2.7.0) ietf; urgency=low

  This introduces the vocabulary v2 to v3 converter, which reads
  RFC7749-compliant xml input, and writes RFC7991-compliant xml output,
  converting elements marked as deprecated in RFC7991 to the equivalent new
  constructs, or removing attributes and elements if no equivalent construct
  exists.  Use the format switch --v2v3 to request v2v3 conversion.  Use
  --verbose to have comments added to the converted xml detailing the
  conversions which have been done.

 -- Henrik Levkowetz <henrik@levkowetz.com>  01 Jul 2017 12:04:07 -0700

xml2rfc (2.6.2) ietf; urgency=low

  * Refactored the input file reading to accept files with Mac line 
    endings, using python's Universal Newline support.  This should make 
    xml2rfc deal correctly with input files following DOS, MAC and Linux 
    line-ending conventions.

 -- Henrik Levkowetz <henrik@levkowetz.com>  19 Jun 2017 06:26:58 -0700

xml2rfc (2.6.1) ietf; urgency=low

  * Inialised the widow and orphan limit settings from PIs.  Did some related
    refactoring.

  * Added an option to show the known PIs, and their default values.  Also
    commented out PIs for which there are no implementations from the internal
    PI list, and did some refactoring of the option parser setup.

  * Changed a number of numeric constants related to page breaking which
    occured inline in the code, so that appropriate settings on the writer are
    used instead: self.page_end_blank_lines, self.orphan_limit,
    self.widow_limit.  Some refactoring.

  * Restored support for the quiet= argument to writers, as this is used by
    other tools that invoke writers, and backwards compatibility is desired.

  * Added a mkrelease script.

  * Limited the changelog on the pypi page to the 2 latest releases.

 -- Henrik Levkowetz <henrik@levkowetz.com>  03 Jun 2017 08:14:07 -0700


xml2rfc (2.6.0) ietf; urgency=medium

  * The implementation of the 'authorship' PI in the original TCL tool would
    suppress the Author's Address section when set to "no", while in the
    current implementation it removed author information on the first page.
    Changed to the original semantics.  Also author organisation handling on
    the first page changed to use the submissionType setting to trigger the
    behaviour described in issue #311.  Fixes issue #311 without overlaying
    this on the 'authorship' PI.

  * Added a check for the 'needLines' PI within lists.

  * Fixed a bug in the code for the 'sectionorphans' PI. Added a PI
    'tocpagebreak' to force a page break before the ToC.  This, together with
    the fix for #311 and needLines within lists, lets xml2rfc produce
    rfc7754.txt correctly from suitable xml without postprocessing.

  * Tweaked the eref output in text mode to avoid generating extraneous 
    space characters.  Fixes issue #329.

  * Merged in [2251] from ietf@augustcellars.com:
    Changed to use the emph character in spanex so that the same thing happens
    in both html and text if an unknown attribute is given.  Fixes issue #297"

  * Merged in [2250] from ietf@augustcellars.com, with tweaks:
    Added code to emit sections in two sections, numbered and un-numbered,
    separately.  Then emit the numbered appendixes, the index, the unnumbered
    appendixes, cref items, authors at the end of the document.  Fixes issue
    #310.

  * Merged in [2249] from ietf@augustcellars.com:
    If you have an xref or similar element in an annotation in a reference,
    any text that follows the xref is absent from the output HTML file.  Text
    files emit correctly.  Fixed the html generation.

  * Merged in [2248] from ietf@augustcellars.com: 
    The HTML rendering for <xref> elements were inconsistent with the text
    rendering.  Fixed this by doing something completely different than is
    called for in the bug report:

    We follow the layout of what the V3 HTML document says to do.  This
    means that we use the child text of the xref when it exists to the
    exclusion of any generated text.  When the child text does not exist
    then we use the synthesized text string as the text for the anchor
    element.  In all cases the anchor element is emitted with an href of the
    target.  Fixes issue #293.

  * Merged in [2247] from ietf@augustcellars.com:
    Added true and false as legal values for the attribute numbered on a
    section.xml Fixes issue #313

  * Eliminated redundant PI parsing, now that each element carries the local 
    PI settings.

  * Merged in patch from martin.thomson@gmail.com, see ticket #307:
    Fixed a problem where if there are no authors, references in HTML are
    badly formatted.  Fixes issue #307 and #309.

  * Merged in [2215] from ietf@augustcellars.com, with some tweaks to make
    things work under python 3.x:
    Don't split special terms with embedded forward slash on the slash
    character.  Fixes issue #288.  Also added code to deal with an extra tab
    in the middle of a sentence.

  * Changed the handling of PIs such that each element in the parsed xml 
    tree holds the PI state at that point of the xml document.  This provides 
    the ability to use different PI settings at different points in the 
    document.  This only makes sense for some PIs, though.  The following PIs 
    will now be honoured if changed inside the document, in order to provide 
    more flexibility: 'multiple-initials', 'artworkdelimiter', 'compact', 
    'subcompact', 'text-list-symbols', 'colonspace'.

  * Honour the way double initials are given in the XML, with or without 
    interleaved spaces.  See issue #303, which says of multiple initials '... 
    Expectation was that it would exactly match the initials attribute in the 
    XML'

  * Merged in [2070] from ietf@augustcellars.com:
    Enabled the multiple-initial PI again.  The code now also looks for the PI
    as the first element of the author element, to apply for that author entry
    only, with a default of 'no'.

  * Merged in [2064] from ietf@augustcellars.com:
    Added handling for absent author initials for the html generator.

  * Merged in [2062] from ietf@augustcellars.com:
    This commit provides support for multiple author initials.  Fixes issue
    #303.  Also fixes the issue of extra commas showing up when there are no
    initials, just a surname.

  * Merged in [2059] from ietf@augustcellars.com:
    Changet to emit html not xhtml.  Addresses issues #263 and #279.

  * Updated additional test masters needed to make the tox tests pass, and
    changed the html encoding and decoding to use utf-8, to work with the
    unicode and utf-8 tests.

  * Removed python 2.6 from tox texting (a previous commit added python 3.5).

  * Don't let the value of 'title' be None, make it an empty string if that 
    happens.  Fixes issue #328

  * Someone might want to set hangIndent to zero.  Test the value against None
    explicitly to permit this to succeed.

  * Added an --utf8 switch to xml2rfc.  In nroff mode, the output will 
    contain utf-8 characters, not \[u8FD9] escapes; use groff with the -Kutf8 
    switch to process the resulting nroff.

  * Removed all references to xml.resource.org; it is not useful for 
    fallback purposes any more.

 -- Henrik Levkowetz <henrik@levkowetz.com>  31 May 2017 05:04:20 -0700

xml2rfc (2.5.2) ietf; urgency=medium

  This is a maintenance release.  It changes the RFC boilerplate for stream
  information to refer to RFC 7841 instead of RFC 5741, for RFCs dated
  July 2016 or later.

 -- Henrik Levkowetz <henrik@levkowetz.com>  07 Oct 2016 15:09:20 +0000


xml2rfc (2.5.1) ietf; urgency=medium

  This is a bugfix maintenance release.

  * Handled a situation where xml2rfc could crash if no source file name
    was available.

  From tonyh@att.com:
  * Modified some tests to match Jim's recent changes

  From ietf@augustcellars.com:

  * Add the valid versions of the text files for the unicode test file.

  * Fixes URIs which didn't add up.  This includes correcting code to deal
    with the difference in unicode strings on Python 2.7 vs Python 3.4.  Build
    the abstract when doing the indexing pass so that any references in it
    will be included both times through Add the start of a unicode test file.
    Fixes issue #290

  * Fixed an xref generation failure: Check to see if there is text, and do
    the right thing if there isn't.  The HTML version seems to be producing
    adequate results.  It does an <a> element around an empty piece of text.
    That is what was asked for.  Fixes issue #226.

  * Fixed an exception on out-of-date dates.  1.  We make it an error instead
    of a warning to have an incomplete and not this year date.  2.  We catch
    the type exception and continue.  Fixes issue #285

  * Replaced the space between the series info and the series value with a
    non-breaking space.  Changed any slashes in the series value so that there
    is a non-breaking zero width space following it.  If a URL is placed in
    the series value, then it is still not going to do correct breaking on
    this.  However this is not something that people should do.  Fixes issue
    #296

 -- Henrik Levkowetz <henrik@levkowetz.com>  19 Oct 2015 18:54:31 +0000


xml2rfc (2.5.0) ietf; urgency=medium

  This release uses different installation settings than previous releases,
  which should make installation under MS Window easier.  It also contains
  a few bugfixes.  For details, see below:

  * Applied patches from julian.reschke@gmx.de: Render <eref target='uri'> 
    without text as inline <uri>.  Fixes issue #234.

  * Changed setup.py to use the entry_points option instead of the scripts 
    option, in order to work better on mswin systems.  Fixes issue #291.

  * Made the reference sorting when using symrefs=yes and sortrefs=yes 
    case-insensitive by mapping the reference keys to lowercase.  This is 
    correct for ASCII keys but not necessarily for non-ASCII keys, depending on 
    locale.  Fixes issue #295 (for now).

  * Changed the path through reference resolution so that too old cached
    references will be updated in the same block where it was discovered that
    they were too old, rather than (erroneously) relying on this happening on
    a later attempt.

  * Set things up so that the processing instrunction dictionary isn't shared
    between the index-building and the document-building runs, which they were
    earlier, with the result that pi values could be different at the start of
    the document-building than they should have been.  Fixes issue #292.

 -- Henrik Levkowetz <henrik@levkowetz.com>  18 May 2015 18:34:25 +0000


xml2rfc (2.4.12) ietf; urgency=medium

  * Modified the nroff table output for PI subcompact=yes so as to produce 
    a list, rather than a paragraph of run-together list entries.  Fixes issue 
    #287.

  * Fixed a bug where a local variable would not always be set.

  * Fixed the bug in 2.4.10 where xml2rfc wouldn't fetch references.

  * Changed the cachetest so it exposes the bug found in 2.4.10 where 
    reference resulution would fail without even attempting network access.

 -- Henrik Levkowetz <henrik@levkowetz.com>  19 Apr 2015 17:28:58 +0000

xml2rfc (2.4.11) ietf; urgency=medium

  * Corrected when the deprecation message about using -f and --file is emitted.

  * Changed where warnings about missing cache entry and --no-network is
    emitted, in order to not emit warnings too early.

 -- Henrik Levkowetz <henrik@levkowetz.com>  10 Apr 2015 21:31:35 +0000

xml2rfc (2.4.10) ietf; urgency=medium

  * Catch bad arguments to the 'needlines' processing instruction.  Fixes 
    issue #282.

  * Make sure we don't ask textwrap to wrap text with within a width of 
    zero.  Fixes issue #277.

  * Reorganized the presentation of options, and corrected some of the help 
    strings.  Marked the -f, --filename options in use for output filename as 
    deprecated.

  * Added a switch --no-network to turn off all attempts to use the network 
    to resolve references.  When using this, processing will fail if the 
    references required by the source file aren't available in the file cache.  
    Also added code to refresh cached content if it's older than 14 days.  
    Modified some tests to suit.  This closes issues #275 and #284.

  * Fixed a bug where leading whitespace in title attributes weren't 
    handled properly.  Fixes issue #274.

  * Tweaked tox.ini to work around an issue with the py27 and py33 
    environments after upgrading to 2.7.8 and 3.3.5, respectively.

  * Added the attribute quote-title (default: true) to schema and writers, 
    and updated the tests accordingly.  Fixes issue #283.

 -- Henrik Levkowetz <henrik@levkowetz.com>  08 Mar 2015 20:55:36 +0000


xml2rfc (2.4.9) ietf; urgency=medium

  * Applied a patch from Martin Thompson to render the ToC with sublevel 
    indentation, instead of as a flat list, for html output, and updated the 
    html regression test masters to match.

  * Added a --no-headers switch, valid only for paginated text.  
    Specifying this omits the output of headers and footers, but retains form 
    feed and top-of-page line padding.

  * Consistently use utf-8 as output encoding.  As long as all content is 
    forced to be ascii, this doesn't change anything; if we permit non-ascii 
    content, this ensures it's utf-8 encoded.

  * Issue a warning for input containing tab characters, and expand to 8, 
    not 4 characters.  Fixes issue #276.

  * Added 'i.e.' as a non-sentence-ending string.  Added a test for some 
    abbreviations, including 'i.e.'.  Fixes issue #115

  * Changed the handling of rfcedstyle so as to include the Authors' 
    Addresses section in the TOC.  Fixes issue #273.

  * Added the ability to create unnumbered sections by using the attribute 
    numbered="no" on the section element, with the constraints specified in 
    draft-hoffman-xml2rfc-15.  Fixes issue #105.

  * In the front page top right-hand matter, don't keep the blank line 
    between authors and date that would otherwise be used for authors without 
    affiliation.  Fixes issue #272.

  * Rewrote the network access code to use the requests package instead of 
    urllib.  Added cache cleaning to the tox test actions.

 -- Henrik Levkowetz <henrik@levkowetz.com>  28 Feb 2015 10:27:05 -0100

xml2rfc (2.4.8) ietf; urgency=medium

  * From Tony Hansen <tonyh@att.com>:
    Added check of line_num+i against len(self.buf) before looking at
    self.buf[line_num+i].  Resolves issue #258.

  * Tweaked the word separator regex to handle words containing both '.' 
    and '-' internally more correctly. Fixes issue #256.

  * Now only emitting texttable word splitting warning once.

  * Changed the sort order of iref index items to not be case sensitive.  
    Fixes issue #255.

  * Generally, changed http: URLs to https:, for improved security.

 -- Henrik Levkowetz <henrik@levkowetz.com>  05 Jun 2014 13:26:55 -0700


xml2rfc (2.4.7) ietf; urgency=high

  This release changes the reference resolution code to try 3 different
  network hosts when trying to find bibxml reference files on the net,
  instead of trying only xml.reference.org.  It now tries, in order::

     http://xml2rfc.ietf.org/
     http://xml2rfc.tools.ietf.org/
     http://xml.reference.org/

  The next release is expected to change this to using https: instead of http:,
  but that change requires both that the resources be available over https,
  and that there's been explicit testing of access over https, something which
  is absent from the current test suite.

 -- Henrik Levkowetz <henrik@levkowetz.com>  22 May 2014 19:05:12 +0200


xml2rfc (2.4.6) ietf; urgency=medium

  This release addresses the known bugs in xml2rfc which has hindered the
  RFC-Editor staff from consistently using xml2rfc v2 in production (and a
  number of other bugs, too).  There still remains a number of open issues,
  and these will be addressed in upcoming releases.  Here are some details
  about the issues fixed:

  * Tweaked the forward-slash part of the word-separator regex to handle IP 
    address prefix lenght indications better.  Related to issue #252.
    Thanks to Brian Carpenter for pointing this aspect out.

  * Changed the code so as to not blow up on empty section titles.  Fixes
    issue #245.

  * Updated the textwrapping word-separator regex to handle slash-separated
    words in a similar manner as hyphenated words, to avoid line-breaks that
    place the forward slash at the start of a line.  Fixes issue #252.

  * Updated the regex for end-of-sentence exceptions to treat a single
    alphabetic character followed by period as end-of-sentence, rather than
    considering it to be the abbreviation of a given name.  This fixes issue
    #251.

  * Updated the sorting to not sort the ref keys surrounded by squere
    brackest, instead sorting only the key strings.  Fixes issue #250.  

  * Added iref handling directly under section, and for figures, both of which
    were missing previously.  Fixes issue #249.  Also modified the format in
    which iref index page lists are emitted, to combine consecutive page
    numbers into range indications, and eliminate repeat mentions of the same
    page number.  Finally, changed things to avoid compressing the double
    space between index item and page list to a single space.  This should
    bring the iref output closer to that of xml2rfc v1.

  * Removed a static copy of the initial text-list-symbols PI, instead
    consulting the master PI dictionary every time, in order to catch changes
    in the text-list-symbols setting.  Fixes issue #246

  * Made a warning conditional on not building the indexes, to avoid duplicate
    error messages.  Fixes issue #242.

  * Provided the relevant counter when creating _RfcItem objects for Figures,
    Tables, numbered References, and Crefs, to make it possible to refer to
    them by xref elements with format='counter'.  Fixes issue #241.

  * Added wrapping and indentation of long Obsoletes: and Updates: list in the
    text formats.  Fixes issue #232.

  * Tweaked the top_rfc test to require proper line wrapping for long
    Obsoletes: lines; see issue #232.

  * We're now using a blank string for source when rendering a cref element
    with no source given, rather failing to concatenate None to a string.
    Fixes issue #225.

  * Rewrote the xml expansion code to use the same serialization mechanism
    under python 2.x and 3.x, and removed external references by replacing
    the doctype declaration during lxml serialization.

  * Fixed some code that didn't work correctly under python 3.3, by making
    sure to insert unicode strings instead of byte strings into unicode
    templates.

  * Fixed a bug where text was compared with an integer when handling the
    needLines PI.

  From Jim Schaad <ietf@augustcellars>:

  * Fixed ticket #186 based on diffs provided by Leif Johansson <leifj@mnt.se>:
    If the first parse of the XML tree generates a syntax error, then we now 
    produce a warning of that fact.  This is in part to help me track down what 
    is happening at odd intervolts on my system where it generates an error and 
    then has entity resolution problems.

  * Fixed the case of one reference section occurring with an eref.  In this
    case we need to emit the extra header in both locations.  Fixes ticket
    #222.

  * Fixed a bug where text following a cref is missing.

 -- Henrik Levkowetz <henrik@levkowetz.com>  18 May 2014 16:18:22 +0200


xml2rfc (2.4.5) ietf; urgency=medium

  Another bugfix release, with a majority of the contributions from Jim Schaad.

  * If there is not an RFC number then XXXX is used for the RFC number for to
    internal:/rfc.number - matches v1 behavior.  Fixes issue #114.

  * We now do a better (but not perfect) job of mking sure that section
    headings are not orphaned.  If you have two section headings in a row then
    the first may still be orphaned.  Fixes issue #166.

  * All known page breaking issues have been fixed.  Closes issue #172.

  * Fixed a number of places where the code has to be made to work with both
    Python 2.7 unicode and string whitespace, and Python 3.3. whitespace
    strings, which are always unicode.  Fixes issue #217.

  * Don't count formatting lines (which we can now tell) when computing 
    break hints.

  * Catch any syntax errors raised while we're looking for an RFC number 
    attribute on <rfc/>, so that we'll show all syntax errors found (during the 
    next parse) instead of just one and one.

  * Added tests which generate .txt from .nroff and compares that to the 
    xml2rfc-generated .txt (with some tweaks to handle different number of 
    starting blanklines.  Also corrected the number of initial blank lines 
    output for RFCs in the raw text writer.

  * Not all files on Windows systems have a common root.  This means that one
    cannot always get a relative path between to absolute path file names.
    Catch the error that occurs in these circumstances and just use the
    absolute path name.

  * Nested "format" style lists now include the level in the auto-generated
    counter value.  Fixes issue #218.

  * EREFs are now put into the references section for text based output.
    Fixes issue #133.

  * cref elements are not dealt with when inline is either yes or no for text
    files.  They are also now populated for html files as well.  Fixes issue
    #201.

 -- Henrik Levkowetz <henrik@levkowetz.com>  17 Jan 2014 17:08:54 +0100

xml2rfc (2.4.4) ietf; urgency=medium

  Another release with major contributions from Jim Schaad.  This release
  primarily addresses page-breaking issues, but also improves the reporting
  of syntax errors (if any) in the xml input.

  From Jim Schaad <ietf@augustcellars.com>:

  * We now do a better (but not perfect) job of mking sure that section
    headings are not orphaned.  If you have two section headings in a row then
    the first may still be orphaned.  Fixes issue #166.

  * Improved autobreaking, in a number of different places.  Fixes issue #172.

  * In all examples in the test suite, the .txt and .nroff output now have the
    same page breaks.

  * Eliminated the line-breaking of 'Section N' in text-tables which was
    introduced in 2.4.4.  Fixes ticket #217.

  * If there is not an RFC number then XXXX is used for the RFC number for to
    internal:/rfc.number - matches v1 behavior.  Fixes issue #114.

  From Henrik Levkowetz <henrik@levkowetz.com>:

  * Instead of previously only showing one single syntax error per invocation
    of xml2rfc, we're now showing all syntax errors found throughout the xml
    file at once.

  * Added tests which generate .txt from .nroff and compares that to the 
    xml2rfc-generated .txt (with some tweaks to handle different number of 
    starting blanklines.  Also corrected the number of initial blank lines 
    output for RFCs in the raw text writer.

 -- Henrik Levkowetz <henrik@levkowetz.com>  19 Dec 2013 21:20:04 +0100

xml2rfc (2.4.4) ietf; urgency=medium

  This is a bugfix release, with code fixes almost entirely from Jim Schaad.

  From Jim Schaad <ietf@augustcellars.com>:

  * Annotations now output more than just the first text field.  It now
    expands all of the child elements as part of the output. Fixes issue #183.

  * If the authors string is zero length, then we do not emit the comma
    separating the authors and the title. Fixes issue #137.

  * Each street line is now tagged as class vcardline so it is emitted on a
    separate line. Fixes issue #153.

  * Fixed a problem with unreferenced references warnings being emitted twice
    if there were two references sections.

  * Fixed some list indentation problems.  We now default to an indent of 3
    for hanging lists which is the same thing that v1 did.  We also use a
    value based on the bullet for format lists rather than using the 3 of a
    default hang indent - this also now matches v1 behavior.

  * Use width of bullet not default to 3*level+3

  * Fixed issue #147 - a hangingText without any text in the body now emits
    the hangingText. Fixes issue #117.

  * Set of fixes that deal with xref in documents.

  * Set of fixes that deal with references.

  * We now use the anchor rather than the generated bullet as the id of the
    reference element. Fixes issue #209.

  * The html did not have the same check for symrefs when sorting references
    that the text version did.  Copy it over so they both only sort if symrefs
    is yes. Fixes issue #210 and #170.

  * Anchors on t elements in a section were referencable, but no
    those in lists.  They are now referencable. Fixes issue #149.

  * We now generate a warning when we get a target in an xref that we have not
    created an indexable reference for.  This basically gives us an internal
    error check.

  * We now generate a warning when a reference is created that is not targeted
    by an xref in the document.

  * Fixed the centering algorithm so that the nroff and txt output files are
    more consistent.

  * Left shift artwork that is greater than 69 characters wide and steal space
    from the left margin. Fixes issue #129.

  *  & 194 which deal with how figures are layout

  * Fixed issue #132 - if the artwork has an alignment - then it overrides the
    figure's version for the purpose of the artwork itself. Fixes issue #151.

  * Suppres-title kills the title decoration (i.e. Figure 1:) which matches v1
    behavior. Fixes issue #213.

  * Convert all non-ASCII characters to entities when building the HTML body.
    We now are correct when we advertise it as being a us-ascii file.

  * Mixed two fixes back to the real source tree.

  * Rewrite of the basic low level code to use unicode strings in many places
    rather than convert the unicode characters into xml entity codes and try
    to use them.  Doing so cleans up much of the line wrapping problems.

  * URLs, when tagged to be not wrapped, now use different Unicode markers on
    the slashes and hyphens so that they will preferentially break on slashes
    rather than hyphens when a URL is too long to fit into a single line of
    text.

  * Tracker issues addressed: #192, #167, #168, #193, #200, #122, #139

  * Increase the amount of text in the INSTALL document to deal with more
    information on how to install for windows. Fixes issue #184.

  * Don't emit the references section and TOC entry if there are no references
    to be emitted. Fixes issue #205.

  * Centering code did not take into account the .in X nroff command.  Always
    use .in 0 for emission of raw text. Fixes issue #203.

  * The TCL code for deciding on table column widths has been moved into the
    new code. Fixes issue #173.

  * We now look for and do expansions for header cells just like normal
    cells. Fixes issue #131.

  * We now remove all entity references when doing an xml output

  * Fixed issue #146 - The code now allows for the assumption that the file
    name given is what it really is and then tries with the .xml appended if
    it is not found. Fixes issue #154.

  * Lots of errors added to tell about bad table layouts

  * allow make to run without pyflakes. Fixes issue #199.

  From Henrik Levkowetz <henrik@levkowetz.com>:

  * Modified the code that saves page-break hints when building the
    unpaginated text so that it doesn't overwrite existing hints used for
    artwork and tables (which should not be broken across pages if at all
    possible) with hints that indicate regular text paragraphs (which may be
    broken except if that creates a widow or orphan).  Fixes issue #179 by
    making the code do for artwork and tables what needLines used to do,
    without needing the manual needLines hint.

 -- Henrik Levkowetz <henrik@levkowetz.com>  11 Dec 2013 00:00:31 +0100

xml2rfc (2.4.3) ietf; urgency=medium

  This release adds compatibility with Python 3.3; the test suite has been
  run for Python 2.6, 2.7 and 3.3 using the 'tox' tool.

  This release also includes a large number of bugfixes, from people working
  at improving xml2rfc during the IETF-88 code sprint.

  Details:

  From Tony Hansen <tony@att.com>:

  * Eliminated spurious dots before author names on page 1.  Fixes issue #189.

  * Fixed the style of nested letter-style lists.  Fixes issue #127

  * Added a handling for empty <?rfc?> PIs within references.  Fixes issue #181.

  * Removed trailing whitespace from reference title, organization.  Fixes
    issue #171.

  * Added support v1 list formats %o, %x, and %X.  Fixes issue #204.

  * Fixed a bad html selector which had a trailing '3'.  Fixes issue #197.

  From Jim Schaad <ietf@augustcellars>:

  * Removed leading zeros on dates.  Fixes issue #206.

  * Fixed a crash when a new page had just been created, and it was totally
    empty.  It is unknown if this can occur someplace other than for the last
    page, but it should have check in other locations to look for that.  In
    addition we needed a change to figure out that we had already emitted a
    header for the page we are not going to use any longer and delete it.  Fixes
    issue #187.

  * Handled the missing \& to escape a period at the beginning of a line.  If we
    do a raw emission (i.e. inside of a figure) then we need to go back over the
    lines we just put into the buffer and check to see if any of them have
    leading periods and quote them.  Fixes issue #191.

  * Removed extraneous .ce 0 and blank lines in the nroff.  Since it was using
    the paging formatter in the process of building the nroff output, it kept
    all of the blank lines at the end of each page and emitted them.  There is
    no check in the nroff page_break function which removes any empty lines at
    the end of the array prior to emitting the ".bp" directive (or not emitting
    it if it is the last thing in the file.  Fixes issue #180.

  * Now correctly picks up the day if a day is provided and uses the current day
    for a draft if the month and year are current.  We now allow for both the
    full name of the month and the abbreviated name of the month to be used,
    however there may be some interesting questions to look at if November is
    not in the current locale.  Fixes issue #195.

  * Fixed the text-list-symbols PI to work at all levels.  The list should
    inherit style from the nearest parent that has one.  Fixes issue #126.

  From Elwyn Davies <elwynd@dial.pipex.com>: 

  * Don't emit '\%' before 'Section' for xrefs in the nroff writer.  Fixes
    issue #169.

  From Henrik Levkowetz <henrik@levkowetz.com>:

  * Modified the iref index output to use consistent sorting for items
    and subitems.

  * Removed the restriction to python 2.x from setup.py

  * Ported xml2rfc to python 3.3 while maintaining compatibility with 2.6 
    and 2.7.

  * Added support for tox testing covering python versions 2.6, 2.7 and 3.3


 -- Henrik Levkowetz <henrik@levkowetz.com>  17 Nov 2013 18:57:18 +0100

xml2rfc (2.4.2) ietf; urgency=medium

  This release fixes all major and critical issues registered in the issue
  tracker as of 26 May 2013.  Details:

  * Applied a patch from ht@inf.ed.ac.uk to sort references (when PI
    sortrefs==yes), and added code to insert a link target if the reference
    has a 'target' attribute. Fixes issue #175.

  * Added pre-installation requirements to the INSTALL file.  Added code to
    scripts/xml2rfc in order to avoid problems if that file is renamed to
    scripts/xml2rfc.py.  This fixes issue #152.

  * Added a setup requirement for python <3.0, as things don't currently
    work if trying to run setup.py or xml2rfc with python 3.X.

  * Added special cases to avoid adding double spaces after many common
    abbreviations.  Refined the sentence-end double-space fixup further, to
    look at whether what follows looks like the start of a new sentence.
    This fixes issue #115.  

  * Moved the get_initials() function to the BaseRfcWriter, as it now needs
    to look at a PI.  Added code to return one initial only, or multiple,
    depending on the PI 'multiple-initials' setting.  Fixes issue #138 (for
    now).  It is possible that this resolution is too simpleminded, and a
    cleaner way is needed to differentiate the handling of initials in the
    current document versus initials in references.

  * Added new undocumented PI multiple-initials to control whether multiple
    initials will be shown for an author, or not.  The default is 'no',
    matching the xml2rfc v1.x behaviour.

  * Fixed the code which determines when an author affiliation doesn't need
    to be listed again in the front page author list, and removes the
    redundant affiliation (the old code would remove the *first* matching
    organization, rather than the immediately preceeding organization name).
    Also fixed a buggy test of when an organization element is present.
    Fixes issue #135.

  * Made appearance of 'Authors Address' (etc.) in ToC dependent on PI
    'rfcedstyle' == 'yes'.  Fixes issue #125.

  * Updated write_text() to handle long bullets that need to be wrapped
    across lines better.  Fixes issue #124.

  * Fixed two other cases of missing blank lines when PI 'compact' is 'no'.
    Fixes issue #82 (some more).

  * Disabled the iprnotified IP.  See issue #123; closes #123.

  * When protecting http: URLs from line-breaking in nroff output, place the
    \% outside enclosing parentheses, if any.  Fixes issue #120.

  * Added a warning for incomplete and out-of-date <date/> elements.  Fixed
    an issue with changeset [792].

  * Issue a warning when the source file isn't for an RFC, but doesn't have
    a docName attribute in the <rfc/> element.

  * Fixed the use of separating lines in table drawing, to match v1 for text
    and nroff output.  (There is no specification for the meaining of the
    different styles though...).  Fixes issue #113.  Note that additional
    style definitions are needed to get the correct results for the html
    output.

  * Refactored and re-wrote the paginated text writer and the nroff writer
    in order to generate a ToC in nroff by re-using the fairly complex
    post-rendering code which inserts the ToC (and iref entries) in the
    paginated text writer.  As a side effect, the page-breaking calculations
    for the nroff writer becomes the same as for the paginated writer.
    Re-factored the line and page-break emitting code to be cleaner and more
    readable.  Changed the code to not start inserting a ToC too close to
    the end of a page (currently hardcoded to require at least 10 lines),
    otherwise skip to a new page.  Fixes issue #109.

  * Changed the author list in first-page header to show a blank line if no
    organization has been given.  Fixes issue #108.

  * Changed the wrapping of nroff output to match text output closely, in
    order to minimize insertion of .bp in the middle of a line.  Fixes issue
    #150 (mostly -- line breaks on hyphens may still cause .bp to be emitted
    in the middle of a line in very rare cases).

  * Changed nroff output for long titles (which will wrap) so that the
    wrapped title text will be indented appropriately.  Fixes issue #128.

  * Changed the handling of special characters (nbsp, nbhy) so as to emit
    the proper non-breaking escapes for nroff.  Fixes issue #121.

  * Changed start-of-line nroff escape handling, see issue #118.

  * Changed the generation of xref text to use the same numeric indexes as
    in the references section when symrefs='no'.  Don't start numbering over
    again when starting a new references section (i.e., when moving from
    normative to informative).  Don't re-sort numeric references
    alphabetically; they are already sorted numerically.  Fixes issue #107.

  * Changed os.linesep to '<NL>' when writing lines to text files.  The
    library takes care of doing the right thing on different platforms;
    writing os.linesep on the other hand will result in the file containing
    '<CR><CR><NL>', which is wrong.  Fixes issue #141.

  * Changed handling of include PIs to replace the PI instead of just
    appending the included tree.  Updated a test file to match updated test
    case.  Fixes issue #136.

 -- Henrik Levkowetz <henrik@levkowetz.com>  26 May 2013 14:45:51 +0200

xml2rfc (2.4.1) ietf; urgency=medium

  * Fixed a problem with very long hangindent bullet text followed by
    <vspace/>, which could make xml2rfc abort with a traceback for
    certain inputs.

  * Fixed a mismatched argument count for string formatting which could
    make xml2rfc abort with a traceback for certain inputs.

 -- Henrik Levkowetz <henrik@levkowetz.com>  13 Feb 2013 23:45:33 +0100


xml2rfc (2.4.0) ietf; urgency=medium

  With this release, all issues against the 2.x series of xml2rfc has been
  resolved.  Without doubt there will be new issues in the issue tracker,
  but the current clean slate is nice to have.

  For full details on all tickets, there's always the issue tracker:
  https://trac.tools.ietf.org/tools/xml2rfc/trac/report/

  An extract from the commit log is available below:

  * In some cases, the error messages when validating an xml document are 
    correct, but too obscure.  If a required element is absent, the error 
    message could say for instance 'Element references content does not follow 
    the DTD, expecting (reference)+, got ', which is correct -- the DTD 
    validator  got nothing, when it required something, so it says 'got ', with 
    nothing after 'got'.  But for a regular user, we now add on 'nothing.' to 
    make things clearer.  Fixes issue #102.

  * It seems there could be a bug in separate invocation of 
    lxml.etree.DTD.validate(tree) after parsing, compared to doing parsing with 
    dtd_validation=True.  The former fails in a case when it shouldn't, while 
    the latter succeeds in validating a valid document.  Declaring validation 
    as successful if the dtd.error_log is empty, even if validation returned 
    False.  This resolves issue #103.

  * Factored out the code which gets an author's initials from the xml 
    author element, and made the get_initials() utility function return 
    initials fixed up with trailing spaces, if missing.  The current code does 
    not mangle initials by removing any initials but the first one.  Fixes 
    issue #63, closes issue #10.


  * Added code to avoid breaking URLs in boilerplate across lines.  Fixes 
    issue #78.
  * Added PI defaults for 'figurecount' and 'tablecount' (not listed in the 
    xml2rfc readme...)  Also removed coupling between explicitly set 
    rfcedstyle, compact, and subcompact settings, to follow v1 practice.

  * Refactored the PI defaults to appear all in the same place, rather than 
    spread out throughout the code.


  * Updated draw_table to insert blank rows when PI compact is 'no'. Fixes 
    issue #82.

  * Added tests and special handling for the case when a hanging type list 
    has less space left on the first line, after the bullet, than what's needed 
    for the first following word.  In that case, start the list text on the 
    following line.  Fixes issue #85.

  * Modified the page-breaking code to better keep section titles together 
    with the section text, and keep figure preamble, figure, postamble and 
    caption together.  Updated tests.  Fixes issue #100.

  * Added handling of tocdepth to the html writer.  Fixes issue #101.

  * Modified how the --base switch to the xml2rfc script works, to make it 
    easier to generate multiple output formats and place them all in the same 
    target directory.  Also changed the default extensions for two output 
    formats (.raw.txt and .exp.xml).

  * Tweaked the html template to not permit crazy wide pages.

  * Rewrote parts of the parsing in order to get hold of the number 
    attribute of the <rfc/> tag before the full parsing is done, in order to be 
    able to later resolve the &rfc.number; entity (which, based on how 
    convoluted it is to get that right, I'd like to deprecate.)  Fixes issue 
    #86.

  * Numerous small fixes to indentation and wrapping of references.  Avoid 
    wrapping URLs in references if possible.  Avoid wrapping 'Section 3.14.' if 
    possible.  Indent more like xml2rfc v1.

  * Added reduction of doublespaces in regular text, except when they might 
    be at the end of a sentence.  Xml2rfc v1 would do this, v2 didn't till now.

  * Generalized the _format_counter() method to consistently handle list 
    counter field-widths internally, and made it adjust the field-width to the 
    max counter width based on the list length and counter type.  Fixes an v1 
    to -v2 incompatibility for numbered lists with 10 items or more, and other 
    similar cases.

  * Added generic base conversion code, and used that to generate list 
    letters which will work for lists with more than 26 items.

  * Reworked code to render roman numerals in lists, to place whitespace 
    correctly in justification field.  Fixes issue #94.

  * Added consensus vs. no-consensus options for IAB RFCs' Status of This 
    Memo section.  Fixes issue #88.

  * Made <t/> elements with an anchor attribute generate html with an <a 
    name='...'/> elemnt, for linking.  Closes issue #67.

  * Applied boilerplate URL-splitting prevention only in the raw writer 
    where later do paragraph line-wrapping, instead of generically.  Fixes 
    issue #62.

  * Now permitting all versions of lxml >= 2.2.8, but notice that there may 
    be missing build dependencies for lxml 3.x which may cause installation of 
    lxml to fail.  (That's an lxml issue, rather than an xml2rfc issue, 
    though...)  This fixes issue #99.

 -- Henrik Levkowetz <henrik@levkowetz.com>  27 Jan 2013 23:20:44 +0100


xml2rfc (2.3.11.3) ietf; urgency=medium

  * Tweaked the install_required setting in setup.py to not pull down lxml 3.x
    (as it's not been tested with xml2rfc) and bumped the version.

 -- Henrik Levkowetz <henrik@levkowetz.com>  18 Jan 2013 17:38:18 +0100


xml2rfc (2.3.11) ietf; urgency=medium

  This release fixes all outstanding major bugs, details below.
  The issue tracker is at https://tools.ietf.org/tools/xml2rfc/trac/.

  * Updated the nroff writer to do backslash escaping on source text, to 
    avoid escaping nroff control characters.  Fixes issue #77.

  * Added a modified xref writer to the nroff output writer, in order to 
    handle xref targets which should not be broken across lines.  This, 
    together with changeset [688], fixes issue #80.

  * Added text to the section test case to trigger the second part of issue 
    #79.  It turns out that the changes in [688] fixed this, too; this closes 
    issue #79.

  * Tweaked the nroff generation to not break on hyphens, in order to avoid 
    hyphenated words ending up with embedded spaces: 'pre-processing' becoming 
    'pre- processing' if 'pre-' occurred at the end of an nroff text line.  
    Also tweaked the line-width used in line-breaking to have matching 
    line-breaks between .txt and .nroff output (with exception for lines ending 
    in hyphens).

  * Tweaked roman number list counter to output roman numbers in a field 5 
    spaces wide, instead of having varied widths.  This is different from 
    version 1, so may have to be reverted, depending on how people react.

  * Added a warning for too long lines in figures and tables.  No 
    outdenting for now; I'd like to consult some about that. Fixes issue #76.

  * Updated tests showing that all list format specifiers mentioned in 
    issue #70 now works.  Closes isssue #70.

  * Changed spanx emphasis back to _this_ instead of -this-, matching the v1 
    behaviour.  Addresses issue #70.

  * Make <vspace/> in a hangindent list reset the indentation to the 
    hang-indent, even if the bullet text is longer than the hang-indent.  
    Addresses issue #70.

  * Refined the page-breaking to not insert an extra page break for artwork
    that won't fit on a page anyway.

  * Refined the page-breaking to avoid breaking artwork and tables across 
    pages, if possible.

  * Fixed a problem with centering of titles and labels.  Fixes issue #73.

  * Changed the leading and trailing whitespace lines of a page to better 
    match legacy output.  Fixed the autobreaking algorithm to correctly avoid 
    orphans and widows; fixes issue #72.  Removed an extra blank line at the 
    top of the page following an early page break to avoid orphan or widow.

  * Tweaked the generation of ToC dot-lines and page numbers to better 
    match legacy xml2rfc.  Fixed a bug in the generation of xref text where 
    trailing whitespace could cause double spaces.  Tweaked the output format 
    to produce the correct number of leading blank lines on the first page of a 
    document.

  * Modified the handling of figure titles, so that given titles will be 
    written also without anchor or figure counting.  Fixes issue #75.

  * Tweaked the html writer to have a buffer interface that provides a 
    self.buf similar to the other writers, for test purposes.

  * Reworked the WriterElementTest suite to test all the output formats, 
    not only paginated text.

  * Added a note about /usr/local/bin permissions.  This closes issue #65.

  * Added files describing possible install methods (INSTALL), and possible 
    build commands (Makefile).

  * The syntax that was used to specify the version of the lxml dependency 
    ('>=') is not supported in python distutil setup.py files, and caused setup 
    to try to find an lxml version greater than =2.2.8, which couldn't succeed. 
    Fixed to say '>2.2.7' instead.  This was probably the cause of always 
    reinstalling lxml even when it was present.

  * Updated README.rst to cover the new --date option, and tweaked it a bit.

  * Added some files to provide an enhanced source distribution package.

  * Updated setup.py with maintainer and licence information.

 -- Henrik Levkowetz <henrik@levkowetz.com>  18 Jan 2013 17:38:18 +0100

xml2rfc (2.3.10) ietf; urgency=low

  * Changed the output text for Internet-Draft references to omit the 
    series name, but add (work in progress).  Updated the test case to match 
    draft revision number.

  * Updated all the rfc editor boilerplate in valid test facits to match the 
    correct outcome (which is also what the code actually produces).

  * Changed the diff test error message so that the valid text is output as 
    the original, not as the changed text of a diff.

  * Corrected test cases to match correct expiry using 185 days instead of 
    183 days from document date.

  * Added missing attributes to the XmlRfcError Exception subclass, 
    necessary in order to make it resemble lxml's error class and provide 
    consistent error messages to the user whether they come from lxml or our 
    own code.

  * Added a licence file, indicating the licencing used by the IETF for the 
    xml2rfc code.

  * Fixed up the xml2rfc cli script to provide better help texts by telling 
    the option parser the appropriate option variable names.

  * Fixed up the help text formatting by explicitly providing an appropriate
    help text formatter to the option parser.  

  * Added an option (--date=DATE)to provide the document date on the command
    line.

  * Added an option (--no-dtd) to disable the DTD validation step.  

  * Added code to catch additional exceptions and provide appropriate user
    information, instead of an exception traceback.

 -- Henrik Levkowetz <henrik@levkowetz.com>  03 Jan 2013 16:59:50 +0100

