Bugfixes

• Newlines around comments, targets and references prevent run-together paragraphs.

  • An image directive with hyperlink reference or target did not start a new paragraph (e.g. the first two image examples in standalone_rst_latex.tex).
  • Paragraphs were not separated if there was a (hyper) target definition inbetween.
  • Paragraphs did run together, if separated by a comment-paragraph in the rst source.

• Fixed missing and spurious internal links/targets. Internal links now take you to the correct place.

• Verbose and linked system messages.

• Figure and image alignment now conforms to the rst definition.

• Put header and footer directive content in DUheader respective DUfooter macros (ignored by the default style/template).

  (They were put inside hard-coded markup at the top/bottom of the document without an option to get them on every page.)

• Render doctest blocks as literal blocks (fixes bug [1586058] doctest block nested in admonition). I.e.

  • indent doctest blocks by nesting in a quote environment. This is also the rendering by the HTML writer (html4css2.css).
  • apply the --literal-block-env setting also to doctest blocks.

  Warning

  (--literal-block-env=verbatim and --literal-block-env=lstlistings fail with literal or doctest blocks nested in an admonition.

• Two-way hyperlinked footnotes and support for symbol footnotes and --footnote-references=brackets with --use-latex-footnotes.

• The packages fixltx2e (providing LaTeX patches and the textsubscript command) and cmap (including character maps in the generated PDF for better search and copy-and-paste operations) are now always loaded (configurable with custom templates).

Backwards compatibility:

"Bug for bug compatibility" is not provided.

New configuration setting defaults

• font-encoding: "T1" (formerly implicitely set by 'ae').
• use-latex-toc: true (ToC with page numbers).
• use-latex-footnotes: true (no mixup with figures).

Backwards compatibility:

Reset to the former defaults with:

font-encoding: ''

use-latex-toc: False

use-latex-footnotes: False

(in the config file) or the command line options:

--figure-footnotes --use-docutils-toc  --font-encoding=''

Cleaner LaTeX source

New features:

• Remove redundant "double protection" from the encoding of the "special printing characters" and square brackets, e.g. \% instead of {\%}.
• Remove some spurious whitespace, e.g. \item [what:] -> \item[what:].
• Use conventional style for "named" macros, e.g. \dots{} instead of {\dots}

Backwards compatibility:

Changes do not affect the output.

LaTeX style sheets

New Feature:

LaTeX packages can be used as --stylesheet argument without restriction.

Implementation:

Use \usepackage if style sheet ends with .sty or has no extension and \input else.

Rationale:

while \input works with extension as well as without extension, \usepackage expects the package name without extension. (The latex2e writer will strip a .sty extension.)

Backwards compatibility:

Up to Docutils 0.5, if no filename extension is given in the stylesheet argument, .tex is assumed (by latex).

Since Docutils 0.6, a stylesheet without filename extension is assumed to be a LaTeX package (*.sty) and referenced with the \usepackage command.

Templates

New Feature:

Advanced configuration via custom templates.

Implementation:

A --template option and config setting allows specification of a template file.

See the LaTeX writer documentation for details.

Custom roles

New Feature: failsave implementation

As with classes to HTML objects, class arguments are silently ignored if there is no styling rule for this class in a custom style sheet.

New Feature: custom roles based on standard roles

As class support needs to be handled by the LaTeX writer, this feature was not present "automatically" (as in HTML). Modified visit/depart_*() methods for the standard roles now call visit/depart_inline() if there are class arguments to the node.

Backwards compatibility:

The implementation is fully backwards compatible. (SVN versions 5742 to 5861 contained an implementation that did not work with commands expecting an argument.)

Length units

New Features:

1. Add default unit if none given. A poll on docutils-users favoured bp (Big Point: 1 bp = 1/72 in).
2. Do not change px to pt.
3. Lengths specified in the document with unit "pt" will be written with unit "bp" to the LaTeX source.

Rationale:

1. prevent LaTeX error "missing unit".

2. px is a valid unit in pdftex since version 1.3.0 released on 2005-02-04:

   1px defaults to 1bp (or 72dpi), but can be changed with the \pdfpxdimen primitive.:

   \pdfpxdimen=1in % 1 dpi
   \divide\pdfpxdimen by 96 % 96 dpi
   

   —http://www.tug.org/applications/pdftex/NEWS

   Modern TeX distributions use pdftex also for dvi generation (i.e. latex actually calls pdftex with some options).

3. In Docutils (as well as CSS) the unit symbol "pt" denotes the Postscript point or DTP point while LaTeX uses "pt" for the LaTeX point, which is unknown to Docutils and 0.3 % smaller.

   The DTP point is available in LaTeX as "bp" (big point):

   1 pt = 1/72.25 in < 1 bp = 1/72 in

Backwards compatibility:

Images with width specification in px come out slightly (0.3 %) larger:

1 px = 1 bp = 1/72 in > 1 pt = 1/72.25 in

This can be reset with

\pdfpxdimen=1pt

Font encoding

New feature:

Do not mix font-encoding and font settings: do not load the obsolete ae and aeguill packages unless explicitely required via the --stylesheet option.

font-encoding = "":
	do not load ae and aeguill, i.e. do not change font settings, do not use the fontenc package (implicitely loaded via ae), use LaTeX default font encoding (OT1)
font-encoding = "OT1":
	load fontenc with \usepackage[OT1]{fontenc}

Example:

--font-encoding=LGR,T1 becomes \usepackage[LGR,T1]{fontenc} (Latin, Latin-1 Supplement, and Greek)

Backwards compatibility:

Load the ae and aeguill packages if fontenc is not used.

Sub- and superscript as text

New feature:

Set sub- and superscript role argument in text mode not as math.

Pass the role content to \textsubscript or \textsuperscript.

Backwards compatibility:

The old implementation set the role content in Math mode, where

• whitespace is ignored,
• a different command set and font setting scheme is active,
• Latin letters are typeset italic but numbers upright.

Although it is possible to redefine \textsubscript and \textsuperscript to typeset the content in math-mode, this can lead to errors with certain input and is therefore not done in this style sheet.

\newcommand{\DUrolesub}{\itshape}
\newcommand{\DUrolesuper}{\itshape}

%% \let\DUsup\textsubscript
%% \let\DUsuper\textsuperscript
%% \renewcommand*{\textsubscript}{\DUsub\itshape}
%% \renewcommand*{\textsuperscript}{\DUsuper\itshape}

Page layout

New features:

• Margins are configurable via the DIV=... document option.
• The \raggedbottom setting is no longer inserted into the document. It is the default for article and report classes. If requested in combination with a book class, it can be given in a custom style sheet.

Backwards compatibility:

Up to version 0.5, use of typearea and a DIV setting of 12 were hard-coded into the latex2e writer

\usepackage{typearea}
\typearea{12}

and the vertical alignment of lower boundary of the text area in book classes disabled via

\raggedbottom

ToC and section numbers

Better conformance to Docutils specifications.

New feature:

• The "depth" argument of the "contents" and "sectnum" directives is respected.
• section numbering independent of 'use-latex-toc':
  • sections are only numbered if there is a "sectnum" directive in the document
  • section numbering by LaTeX if the "sectnum_xforms" config setting is False.

Backwards compatibility:

The previous behaviour was to always number sections if 'use-latex-toc' is true, using the document class defaults. It cannot be restored universally, the following code sets the default values of the "article" document class:

\setcounter{secnumdepth}{3}
\setcounter{tocdepth}{3}

New feature:

If 'use-latex-toc' is set, local tables of content are typeset using the 'minitoc' package (instead of being ignored).

Backwards compatibility:

Disable the creation of local ToCs (ignoring all special commands) by replacing \usepackage{minitoc} with ``\usepackage{mtcoff}.

Default font in admonitions and sidebar

New feature:

Use default font in admonitions and sidebar.

Backward compatibility:

See the fallback definitions for admonitions, topic title and sidebar.

Figure placement

New feature:

Use \floatplacement from the float package instead of "hard-coded" optional argument for the global setting.

Default to \floatplacement{figure}{H} (here definitely). This corresponds most closely to the source and HTML placement (principle of least surprise).

Backwards compatibility:

Set the global default back to the previous used value:

\usepackage{float}
\floatplacement{figure}{htbp} % here, top, bottom, extra-page

Figure and image alignment

New features:

1. Fix behaviour of 'align' argument to a figure (do not align figure contents).

   As the 'figwidth' argument is still ignored and the "natural width" of a figure in LaTeX is 100% textwidth, setting the 'align' argument of a figure has currently no effect on the LaTeX output.

2. Set default align of image in a figure to 'center'.

3. Also center images that are wider than textwidth.

4. Align images with class "align-[right|center|left]" (allows setting the alignment of an image in a figure).

Backwards compatibility:

There is no "automatic" way to reverse these changes via a style sheet.

1. The alignment of the image can be set with the "align-left", "align-center" and "align-right" class arguments.

   As previously, the caption of a figure is aligned according to the document class -- configurable with a style sheet using the "caption" package.

2. See a)

3. Set the alignment of "oversized" images to "left" to get back the old placement.

Shorter preamble

New feature:

The document preamble is pruned to contain only relevant commands and settings.

\usepackage{shortvrb}
\usepackage{amsmath}

\usepackage{longtable}

\usepackage{array}
\setlength{\extrarowheight}{2pt}

\usepackage{multirow}

\usepackage{tabularx}

\usepackage{graphicx}

\usepackage{color}

% begin: floats for footnotes tweaking.
\setlength{\floatsep}{0.5em}
\setlength{\textfloatsep}{\fill}
\addtolength{\textfloatsep}{3em}
\renewcommand{\textfraction}{0.5}
\renewcommand{\topfraction}{0.5}
\renewcommand{\bottomfraction}{0.5}
\setcounter{totalnumber}{50}
\setcounter{topnumber}{50}
\setcounter{bottomnumber}{50}
% end floats for footnotes

Special lengths, commands, and environments

\newlength{\docinfowidth}
\setlength{\docinfowidth}{0.9\textwidth}

\newlength{\DUdocinfowidth}
\AtBeginDocument{\setlength{\DUdocinfowidth}{\docinfowidth}}

\newlength{\lineblockindentation}
\setlength{\lineblockindentation}{2.5em}
\newenvironment{lineblock}[1]
{\begin{list}{}
  {\setlength{\partopsep}{\parskip}
   \addtolength{\partopsep}{\baselineskip}
   \topsep0pt\itemsep0.15\baselineskip\parsep0pt
   \leftmargin#1}
 \raggedright}
{\end{list}}

\newlength{\DUlineblockindent}
\AtBeginDocument{\setlength{\DUlineblockindent}{\lineblockindentation}}
\newenvironment{DUlineblock}[1]
  {\begin{lineblock}{#1}}
  {\end{lineblock}}

\newlength{\locallinewidth}

\newcommand{\optionlistlabel}[1]{\bf #1 \hfill}
\newenvironment{optionlist}[1]
{\begin{list}{}
  {\setlength{\labelwidth}{#1}
   \setlength{\rightmargin}{1cm}
   \setlength{\leftmargin}{\rightmargin}
   \addtolength{\leftmargin}{\labelwidth}
   \addtolength{\leftmargin}{\labelsep}
   \renewcommand{\makelabel}{\optionlistlabel}}
}{\end{list}}

\newcommand{\DUoptionlistlabel}{\optionlistlabel}
\newenvironment{DUoptionlist}
  {\begin{optionlist}{3cm}}
  {\end{optionlist}}

\newcommand{\rubric}[1]{\subsection*{~\hfill {\it #1} \hfill ~}}
\newcommand{\DUrubric}[2][class-arg]{\rubric{#2}}

\newcommand{\titlereference}[1]{\textsl{#1}}
\newcommand{\DUroletitlereference}[1]{\titlereference{#1}}

\newcommand{\DUadmonition}[2][class-arg]{%
  \begin{center}
    \fbox{\parbox{0.9\textwidth}{\sffamily #2}}
  \end{center}
}

\newcommand{\DUtopicdedication}[1]{#1}

\newcommand*{\DUtitlededication}[1]{\centerline{\textbf{#1}}}

\providecommand{\DUsidebar}[2][class-arg]{%
  \begin{center}
    \sffamily
    \fbox{\colorbox[gray]{0.80}{\parbox{0.9\textwidth}{#2}}}
  \end{center}
}

\providecommand*{\DUsubtitlesidebar}[1]{\hspace*{\fill}\\
  \textbf{#1}\smallskip}

\newcommand{\DUtopic}[2][class-arg]{%
  \ifcsname DUtopic#1\endcsname%
    \csname DUtopic#1\endcsname{#2}%
  \else
    #2
  \fi
}

\providecommand*{\DUtitletopic}[1]{\textbf{\large #1}\smallskip}

\providecommand*{\DUtransition}[1][class-arg]{%
  \hspace*{\fill}\hrulefill\hspace*{\fill}}