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<title>CodeMirror: reStructuredText mode</title> |
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<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a> |
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<ul> |
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<li><a href="../../index.html">Home</a> |
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<li><a href="../../doc/manual.html">Manual</a> |
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<li><a href="../index.html">Language modes</a> |
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<li><a class=active href="#">reStructuredText</a> |
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</div> |
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<article> |
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<h2>reStructuredText mode</h2> |
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<form><textarea id="code" name="code"> |
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.. This is an excerpt from Sphinx documentation: http://sphinx.pocoo.org/_sources/rest.txt |
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.. highlightlang:: rest |
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.. _rst-primer: |
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reStructuredText Primer |
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======================= |
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This section is a brief introduction to reStructuredText (reST) concepts and |
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syntax, intended to provide authors with enough information to author documents |
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productively. Since reST was designed to be a simple, unobtrusive markup |
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language, this will not take too long. |
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.. seealso:: |
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The authoritative `reStructuredText User Documentation |
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<http://docutils.sourceforge.net/rst.html>`_. The "ref" links in this |
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document link to the description of the individual constructs in the reST |
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reference. |
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Paragraphs |
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---------- |
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The paragraph (:duref:`ref <paragraphs>`) is the most basic block in a reST |
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document. Paragraphs are simply chunks of text separated by one or more blank |
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lines. As in Python, indentation is significant in reST, so all lines of the |
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same paragraph must be left-aligned to the same level of indentation. |
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.. _inlinemarkup: |
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Inline markup |
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------------- |
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The standard reST inline markup is quite simple: use |
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* one asterisk: ``*text*`` for emphasis (italics), |
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* two asterisks: ``**text**`` for strong emphasis (boldface), and |
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* backquotes: ````text```` for code samples. |
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If asterisks or backquotes appear in running text and could be confused with |
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inline markup delimiters, they have to be escaped with a backslash. |
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Be aware of some restrictions of this markup: |
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* it may not be nested, |
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* content may not start or end with whitespace: ``* text*`` is wrong, |
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* it must be separated from surrounding text by non-word characters. Use a |
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backslash escaped space to work around that: ``thisis\ *one*\ word``. |
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These restrictions may be lifted in future versions of the docutils. |
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reST also allows for custom "interpreted text roles"', which signify that the |
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enclosed text should be interpreted in a specific way. Sphinx uses this to |
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provide semantic markup and cross-referencing of identifiers, as described in |
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the appropriate section. The general syntax is ``:rolename:`content```. |
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Standard reST provides the following roles: |
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* :durole:`emphasis` -- alternate spelling for ``*emphasis*`` |
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* :durole:`strong` -- alternate spelling for ``**strong**`` |
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* :durole:`literal` -- alternate spelling for ````literal```` |
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* :durole:`subscript` -- subscript text |
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* :durole:`superscript` -- superscript text |
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* :durole:`title-reference` -- for titles of books, periodicals, and other |
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materials |
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See :ref:`inline-markup` for roles added by Sphinx. |
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Lists and Quote-like blocks |
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--------------------------- |
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List markup (:duref:`ref <bullet-lists>`) is natural: just place an asterisk at |
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the start of a paragraph and indent properly. The same goes for numbered lists; |
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they can also be autonumbered using a ``#`` sign:: |
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* This is a bulleted list. |
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* It has two items, the second |
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item uses two lines. |
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1. This is a numbered list. |
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2. It has two items too. |
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#. This is a numbered list. |
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#. It has two items too. |
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Nested lists are possible, but be aware that they must be separated from the |
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parent list items by blank lines:: |
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* this is |
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* a list |
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* with a nested list |
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* and some subitems |
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* and here the parent list continues |
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Definition lists (:duref:`ref <definition-lists>`) are created as follows:: |
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term (up to a line of text) |
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Definition of the term, which must be indented |
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and can even consist of multiple paragraphs |
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next term |
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Description. |
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Note that the term cannot have more than one line of text. |
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Quoted paragraphs (:duref:`ref <block-quotes>`) are created by just indenting |
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them more than the surrounding paragraphs. |
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Line blocks (:duref:`ref <line-blocks>`) are a way of preserving line breaks:: |
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| These lines are |
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| broken exactly like in |
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| the source file. |
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There are also several more special blocks available: |
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* field lists (:duref:`ref <field-lists>`) |
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* option lists (:duref:`ref <option-lists>`) |
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* quoted literal blocks (:duref:`ref <quoted-literal-blocks>`) |
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* doctest blocks (:duref:`ref <doctest-blocks>`) |
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Source Code |
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----------- |
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Literal code blocks (:duref:`ref <literal-blocks>`) are introduced by ending a |
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paragraph with the special marker ``::``. The literal block must be indented |
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(and, like all paragraphs, separated from the surrounding ones by blank lines):: |
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This is a normal text paragraph. The next paragraph is a code sample:: |
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It is not processed in any way, except |
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that the indentation is removed. |
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It can span multiple lines. |
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This is a normal text paragraph again. |
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The handling of the ``::`` marker is smart: |
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* If it occurs as a paragraph of its own, that paragraph is completely left |
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out of the document. |
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* If it is preceded by whitespace, the marker is removed. |
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* If it is preceded by non-whitespace, the marker is replaced by a single |
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colon. |
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That way, the second sentence in the above example's first paragraph would be |
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rendered as "The next paragraph is a code sample:". |
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.. _rst-tables: |
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Tables |
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------ |
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Two forms of tables are supported. For *grid tables* (:duref:`ref |
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<grid-tables>`), you have to "paint" the cell grid yourself. They look like |
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this:: |
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+------------------------+------------+----------+----------+ |
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| Header row, column 1 | Header 2 | Header 3 | Header 4 | |
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| (header rows optional) | | | | |
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+========================+============+==========+==========+ |
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| body row 1, column 1 | column 2 | column 3 | column 4 | |
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+------------------------+------------+----------+----------+ |
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| body row 2 | ... | ... | | |
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+------------------------+------------+----------+----------+ |
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*Simple tables* (:duref:`ref <simple-tables>`) are easier to write, but |
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limited: they must contain more than one row, and the first column cannot |
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contain multiple lines. They look like this:: |
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===== ===== ======= |
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A B A and B |
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===== ===== ======= |
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False False False |
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True False False |
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False True False |
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True True True |
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===== ===== ======= |
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Hyperlinks |
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---------- |
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External links |
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^^^^^^^^^^^^^^ |
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Use ```Link text <http://example.com/>`_`` for inline web links. If the link |
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text should be the web address, you don't need special markup at all, the parser |
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finds links and mail addresses in ordinary text. |
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You can also separate the link and the target definition (:duref:`ref |
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<hyperlink-targets>`), like this:: |
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This is a paragraph that contains `a link`_. |
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.. _a link: http://example.com/ |
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Internal links |
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^^^^^^^^^^^^^^ |
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Internal linking is done via a special reST role provided by Sphinx, see the |
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section on specific markup, :ref:`ref-role`. |
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Sections |
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-------- |
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Section headers (:duref:`ref <sections>`) are created by underlining (and |
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optionally overlining) the section title with a punctuation character, at least |
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as long as the text:: |
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================= |
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This is a heading |
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================= |
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Normally, there are no heading levels assigned to certain characters as the |
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structure is determined from the succession of headings. However, for the |
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Python documentation, this convention is used which you may follow: |
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* ``#`` with overline, for parts |
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* ``*`` with overline, for chapters |
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* ``=``, for sections |
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* ``-``, for subsections |
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* ``^``, for subsubsections |
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* ``"``, for paragraphs |
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Of course, you are free to use your own marker characters (see the reST |
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documentation), and use a deeper nesting level, but keep in mind that most |
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target formats (HTML, LaTeX) have a limited supported nesting depth. |
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Explicit Markup |
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--------------- |
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"Explicit markup" (:duref:`ref <explicit-markup-blocks>`) is used in reST for |
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most constructs that need special handling, such as footnotes, |
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specially-highlighted paragraphs, comments, and generic directives. |
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An explicit markup block begins with a line starting with ``..`` followed by |
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whitespace and is terminated by the next paragraph at the same level of |
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indentation. (There needs to be a blank line between explicit markup and normal |
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paragraphs. This may all sound a bit complicated, but it is intuitive enough |
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when you write it.) |
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.. _directives: |
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Directives |
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---------- |
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A directive (:duref:`ref <directives>`) is a generic block of explicit markup. |
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Besides roles, it is one of the extension mechanisms of reST, and Sphinx makes |
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heavy use of it. |
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Docutils supports the following directives: |
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* Admonitions: :dudir:`attention`, :dudir:`caution`, :dudir:`danger`, |
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:dudir:`error`, :dudir:`hint`, :dudir:`important`, :dudir:`note`, |
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:dudir:`tip`, :dudir:`warning` and the generic :dudir:`admonition`. |
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(Most themes style only "note" and "warning" specially.) |
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* Images: |
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- :dudir:`image` (see also Images_ below) |
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- :dudir:`figure` (an image with caption and optional legend) |
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* Additional body elements: |
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- :dudir:`contents` (a local, i.e. for the current file only, table of |
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contents) |
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- :dudir:`container` (a container with a custom class, useful to generate an |
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outer ``<div>`` in HTML) |
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- :dudir:`rubric` (a heading without relation to the document sectioning) |
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- :dudir:`topic`, :dudir:`sidebar` (special highlighted body elements) |
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- :dudir:`parsed-literal` (literal block that supports inline markup) |
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- :dudir:`epigraph` (a block quote with optional attribution line) |
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- :dudir:`highlights`, :dudir:`pull-quote` (block quotes with their own |
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class attribute) |
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- :dudir:`compound` (a compound paragraph) |
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* Special tables: |
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- :dudir:`table` (a table with title) |
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- :dudir:`csv-table` (a table generated from comma-separated values) |
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- :dudir:`list-table` (a table generated from a list of lists) |
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* Special directives: |
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- :dudir:`raw` (include raw target-format markup) |
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- :dudir:`include` (include reStructuredText from another file) |
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-- in Sphinx, when given an absolute include file path, this directive takes |
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it as relative to the source directory |
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- :dudir:`class` (assign a class attribute to the next element) [1]_ |
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* HTML specifics: |
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- :dudir:`meta` (generation of HTML ``<meta>`` tags) |
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- :dudir:`title` (override document title) |
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* Influencing markup: |
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- :dudir:`default-role` (set a new default role) |
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- :dudir:`role` (create a new role) |
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Since these are only per-file, better use Sphinx' facilities for setting the |
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:confval:`default_role`. |
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Do *not* use the directives :dudir:`sectnum`, :dudir:`header` and |
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:dudir:`footer`. |
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Directives added by Sphinx are described in :ref:`sphinxmarkup`. |
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Basically, a directive consists of a name, arguments, options and content. (Keep |
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this terminology in mind, it is used in the next chapter describing custom |
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directives.) Looking at this example, :: |
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.. function:: foo(x) |
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foo(y, z) |
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:module: some.module.name |
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Return a line of text input from the user. |
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``function`` is the directive name. It is given two arguments here, the |
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remainder of the first line and the second line, as well as one option |
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``module`` (as you can see, options are given in the lines immediately following |
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the arguments and indicated by the colons). Options must be indented to the |
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same level as the directive content. |
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The directive content follows after a blank line and is indented relative to the |
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directive start. |
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Images |
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------ |
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reST supports an image directive (:dudir:`ref <image>`), used like so:: |
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.. image:: gnu.png |
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(options) |
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When used within Sphinx, the file name given (here ``gnu.png``) must either be |
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relative to the source file, or absolute which means that they are relative to |
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the top source directory. For example, the file ``sketch/spam.rst`` could refer |
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to the image ``images/spam.png`` as ``../images/spam.png`` or |
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``/images/spam.png``. |
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Sphinx will automatically copy image files over to a subdirectory of the output |
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directory on building (e.g. the ``_static`` directory for HTML output.) |
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Interpretation of image size options (``width`` and ``height``) is as follows: |
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if the size has no unit or the unit is pixels, the given size will only be |
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respected for output channels that support pixels (i.e. not in LaTeX output). |
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Other units (like ``pt`` for points) will be used for HTML and LaTeX output. |
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Sphinx extends the standard docutils behavior by allowing an asterisk for the |
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extension:: |
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.. image:: gnu.* |
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Sphinx then searches for all images matching the provided pattern and determines |
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their type. Each builder then chooses the best image out of these candidates. |
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For instance, if the file name ``gnu.*`` was given and two files :file:`gnu.pdf` |
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and :file:`gnu.png` existed in the source tree, the LaTeX builder would choose |
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the former, while the HTML builder would prefer the latter. |
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.. versionchanged:: 0.4 |
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Added the support for file names ending in an asterisk. |
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.. versionchanged:: 0.6 |
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Image paths can now be absolute. |
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Footnotes |
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--------- |
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For footnotes (:duref:`ref <footnotes>`), use ``[#name]_`` to mark the footnote |
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location, and add the footnote body at the bottom of the document after a |
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"Footnotes" rubric heading, like so:: |
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Lorem ipsum [#f1]_ dolor sit amet ... [#f2]_ |
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.. rubric:: Footnotes |
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.. [#f1] Text of the first footnote. |
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.. [#f2] Text of the second footnote. |
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You can also explicitly number the footnotes (``[1]_``) or use auto-numbered |
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footnotes without names (``[#]_``). |
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Citations |
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--------- |
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Standard reST citations (:duref:`ref <citations>`) are supported, with the |
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additional feature that they are "global", i.e. all citations can be referenced |
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from all files. Use them like so:: |
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Lorem ipsum [Ref]_ dolor sit amet. |
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.. [Ref] Book or article reference, URL or whatever. |
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Citation usage is similar to footnote usage, but with a label that is not |
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numeric or begins with ``#``. |
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Substitutions |
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------------- |
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reST supports "substitutions" (:duref:`ref <substitution-definitions>`), which |
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are pieces of text and/or markup referred to in the text by ``|name|``. They |
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are defined like footnotes with explicit markup blocks, like this:: |
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.. |name| replace:: replacement *text* |
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or this:: |
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.. |caution| image:: warning.png |
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:alt: Warning! |
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See the :duref:`reST reference for substitutions <substitution-definitions>` |
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for details. |
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If you want to use some substitutions for all documents, put them into |
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:confval:`rst_prolog` or put them into a separate file and include it into all |
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documents you want to use them in, using the :rst:dir:`include` directive. (Be |
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sure to give the include file a file name extension differing from that of other |
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source files, to avoid Sphinx finding it as a standalone document.) |
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Sphinx defines some default substitutions, see :ref:`default-substitutions`. |
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Comments |
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-------- |
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Every explicit markup block which isn't a valid markup construct (like the |
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footnotes above) is regarded as a comment (:duref:`ref <comments>`). For |
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example:: |
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.. This is a comment. |
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You can indent text after a comment start to form multiline comments:: |
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.. |
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This whole indented block |
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is a comment. |
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Still in the comment. |
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Source encoding |
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--------------- |
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Since the easiest way to include special characters like em dashes or copyright |
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signs in reST is to directly write them as Unicode characters, one has to |
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specify an encoding. Sphinx assumes source files to be encoded in UTF-8 by |
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default; you can change this with the :confval:`source_encoding` config value. |
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Gotchas |
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------- |
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There are some problems one commonly runs into while authoring reST documents: |
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* **Separation of inline markup:** As said above, inline markup spans must be |
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separated from the surrounding text by non-word characters, you have to use a |
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backslash-escaped space to get around that. See `the reference |
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<http://docutils.sf.net/docs/ref/rst/restructuredtext.html#inline-markup>`_ |
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for the details. |
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* **No nested inline markup:** Something like ``*see :func:`foo`*`` is not |
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possible. |
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.. rubric:: Footnotes |
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.. [1] When the default domain contains a :rst:dir:`class` directive, this directive |
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will be shadowed. Therefore, Sphinx re-exports it as :rst:dir:`rst-class`. |
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</textarea></form> |
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<script> |
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var editor = CodeMirror.fromTextArea(document.getElementById("code"), { |
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lineNumbers: true, |
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}); |
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</script> |
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<p> |
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The <code>python</code> mode will be used for highlighting blocks |
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containing Python/IPython terminal sessions: blocks starting with |
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<code>>>></code> (for Python) or <code>In [num]:</code> (for |
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IPython). |
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Further, the <code>stex</code> mode will be used for highlighting |
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blocks containing LaTex code. |
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</p> |
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<p><strong>MIME types defined:</strong> <code>text/x-rst</code>.</p> |
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</article>
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