Docutils Configuration Files

Author: David Goodger
Contact: goodger@python.org
Revision: 4207
Date: 2005-12-14
Copyright: This document has been placed in the public domain.

Contents

Configuration files are used for persistent customization; they can be set once and take effect every time you use a front-end tool. Configuration file settings override the built-in defaults, and command-line options override all.

By default, Docutils checks the following places for configuration files, in the following order:

  1. /etc/docutils.conf: This is a system-wide configuration file, applicable to all Docutils processing on the system.
  2. ./docutils.conf: This is a project-specific configuration file, located in the current directory. The Docutils front end has to be executed from the directory containing this configuration file for it to take effect (note that this may have nothing to do with the location of the source files). Settings in the project-specific configuration file will override corresponding settings in the system-wide file.
  3. ~/.docutils: This is a user-specific configuration file, located in the user's home directory. Settings in this file will override corresponding settings in both the system-wide and project-specific configuration files.

If more than one configuration file is found, all will be read but later entries will override earlier ones. For example, a "stylesheet" entry in a user-specific configuration file will override a "stylesheet" entry in the system-wide file.

The default implicit config file paths can be overridden by the DOCUTILSCONFIG environment variable. DOCUTILSCONFIG should contain a colon-separated (semicolon-separated on Windows) sequence of config file paths to search for; leave it empty to disable implicit config files altogether. Tilde-expansion is performed on paths. Paths are interpreted relative to the current working directory. Empty path items are ignored.

In addition, a configuration file may be explicitly specified with the "--config" command-line option. This configuration file is read after the three implicit ones listed above (or the ones defined by the DOCUTILSCONFIG environment variable), and its entries will have priority.

Configuration File Syntax

Configuration files use the standard ConfigParser.py Python module. From its documentation:

The configuration file consists of sections, lead by a "[section]" header and followed by "name: value" entries, with continuations in the style of RFC 822; "name=value" is also accepted. Note that leading whitespace is removed from values. ... Lines beginning with "#" or ";" are ignored and may be used to provide comments.

Note

No format string interpolation is done.

Configuration file entry names correspond to internal runtime settings. Underscores ("_") and hyphens ("-") can be used interchangably in entry names; hyphens are automatically converted to underscores.

For on/off switch settings (booleans), the following values are recognized:

Configuration File Sections & Entries

Below are the Docutils runtime settings, listed by config file section. Any setting may be specified in any section, but only settings from active sections will be used. Sections correspond to Docutils components (module name or alias; section names are always in lowercase letters). Each Docutils application uses a specific set of components; corresponding configuration file sections are applied when the application is used. Configuration sections are applied in general-to-specific order, as follows:

  1. [general]

  2. [parsers], parser dependencies, and the section specific to the Parser used ("[... parser]"). Currently, only [restructuredtext parser] is applicable.

  3. [readers], reader dependencies, and the section specific to the Reader used ("[... reader]"). For example, [pep reader] depends on [standalone reader].

  4. [writers], writer dependencies, and the section specific to the Writer used ("[... writer]"). For example, [pep_html writer] depends on [html4css1 writer].

  5. [applications], application dependencies, and the section

    specific to the Application (front-end tool) in use ("[... application]").

Since any setting may be specified in any section, this ordering allows component- or application-specific overrides of earlier settings. For example, there may be Reader-specific overrides of general settings; Writer-specific overrides of Parser settings; Application-specific overrides of Writer settings; and so on.

If multiple configuration files are applicable, the process is completed (all sections are applied in the order given) for each one before going on to the next. For example, a "[pep_html writer] stylesheet" setting in an earlier configuration file would be overridden by an "[html4css1 writer] stylesheet" setting in a later file.

Some knowledge of Python is assumed for some attributes.

[general]

Settings in the "[general]" section are always applied.

auto_id_prefix

Prefix prepended to all auto-generated IDs generated within the document, after id_prefix.

Default: "id". Options: --auto-id-prefix (hidden, intended mainly for programmatic use).

datestamp

Include a time/datestamp in the document footer. Contains a format string for Python's time.strftime. See the time module documentation.

Default: None. Options: --date, -d, --time, -t, --no-datestamp.

Configuration file entry examples:

# Equivalent to --date command-line option, results in
# ISO 8601 extended format datestamp, e.g. "2001-12-21":
datestamp: %Y-%m-%d

# Equivalent to --time command-line option, results in
# date/timestamp like "2001-12-21 18:43 UTC":
datestamp: %Y-%m-%d %H:%M UTC

# Disables datestamp; equivalent to --no-datestamp:
datestamp:
debug

Report debug-level system messages.

Default: don't (None). Options: --debug, --no-debug.

dump_internals

At the end of processing, write all internal attributes of the document (document.__dict__) to stderr.

Default: don't (None). Options: --dump-internals (hidden, for development use only).

dump_pseudo_xml

At the end of processing, write the pseudo-XML representation of the document to stderr.

Default: don't (None). Options: --dump-pseudo-xml (hidden, for development use only).

dump_settings

At the end of processing, write all Docutils settings to stderr.

Default: don't (None). Options: --dump-settings (hidden, for development use only).

dump_transforms

At the end of processing, write a list of all transforms applied to the document to stderr.

Default: don't (None). Options: --dump-transforms (hidden, for development use only).

error_encoding

The text encoding for error output.

Default: "ascii". Options: --error-encoding, -e.

error_encoding_error_handler

The error handler for unencodable characters in error output. See output_encoding_error_handler for acceptable values.

Default: "backslashreplace" for Python 2.3 and later; "replace" otherwise. Options: --error-encoding-error-handler, --error-encoding, -e.

exit_status_level

A system message level threshold; non-halting system messages at or above this level will produce a non-zero exit status at normal exit. Exit status is the maximum system message level plus 10 (11 for INFO, etc.).

Default: disabled (5). Options: --exit-status.

expose_internals

List of internal attribues to expose as external attributes (with "internal:" namespace prefix). To specify multiple attributes in configuration files, use colons to separate names; on the command line, the option may be used more than once.

Default: don't (None). Options: --expose-internal-attribute (hidden, for development use only).

footnote_backlinks

Enable or disable backlinks from footnotes and citations to their references.

Default: enabled (1). Options: --footnote-backlinks, --no-footnote-backlinks.

generator

Include a "Generated by Docutils" credit and link in the document footer.

Default: off (None). Options: --generator, -g, --no-generator.

halt_level

The threshold at or above which system messages are converted to exceptions, halting execution immediately. If traceback is set, the exception will propagate; otherwise, Docutils will exit.

Default: severe (4). Options: --halt, --strict.

id_prefix

Prefix prepended to all IDs generated within the document. See also auto_id_prefix.

Default: "" (empty). Options: --id-prefix (hidden, intended mainly for programmatic use).

input_encoding

The text encoding for input.

Default: auto-detect (None). Options: --input-encoding, -i.

input_encoding_error_handler

The error handler for undecodable characters in the input. Acceptable values include:

strict
Raise an exception in case of an encoding error.
replace
Replace malformed data with the official Unicode replacement character, U+FFFD.
ignore
Ignore malformed data and continue without further notice.

Acceptable values are the same as for the "error" parameter of Python's unicode function; other values may be defined in applications or in future versions of Python.

Default: "strict". Options: --input-encoding-error-handler, --input-encoding, -i.

language_code

ISO 639 2-letter language code (3-letter codes used only if no 2-letter code exists).

Default: English ("en"). Options: --language, -l.

output_encoding

The text encoding for output.

Default: "UTF-8". Options: --output-encoding, -o.

output_encoding_error_handler

The error handler for unencodable characters in the output. Acceptable values include:

strict
Raise an exception in case of an encoding error.
replace
Replace malformed data with a suitable replacement marker, such as "?".
ignore
Ignore malformed data and continue without further notice.
xmlcharrefreplace
Replace with the appropriate XML character reference, such as "†".
backslashreplace
(Python 2.3+) Replace with backslashed escape sequences, such as "\u2020".

Acceptable values are the same as for the "error" parameter of Python's encode string method; other values may be defined in applications or in future versions of Python.

Default: "strict". Options: --output-encoding-error-handler, --output-encoding, -o.

record_dependencies

Path to a file where Docutils will write a list of files that the input and output depend on [3], e.g. due to file inclusion. [1] The format is one filename per line. This option is particularly useful in conjunction with programs like make.

Set to - in order to write dependencies to stdout.

Default: None. Option: --record-dependencies.

report_level

Verbosity threshold at or above which system messages are reported.

Default: warning (2). Options: --report, -r, --verbose, -v, --quiet, -q.

sectnum_xform

Enable or disable the section numbering transform (docutils.transforms.parts.SectNum).

Default: enabled (1). Options: --section-numbering, --no-section-numbering.

source_link

Include a "View document source" link in the document footer. URL will be relative to the destination.

Default: don't (None). Options: --source-link, -s, --no-source-link.

source_url

An explicit URL for a "View document source" link, used verbatim.

Default: compute if source_link (None). Options: --source-url, --no-source-link.

strict_visitor

When processing a document tree with the Visitor pattern, raise an error if a writer does not support a node type listed as optional. For transitional development use.

Default: disabled (None). Option: --strict-visitor (hidden, for development use only).

strip_comments

Enable the removal of comment elements from the document tree.

Default: disabled (None). Options: --strip-comment, --leave-comments.

title

The document title as metadata, which does not become part of the document body. It overrides a document-supplied title. For example, in HTML output the metadata document title appears in the title bar of the browser window.

Default: none. Option: --title.

toc_backlinks

Enable backlinks from section titles to table of contents entries ("entry"), to the top of the TOC ("top"), or disable ("none").

Default: "entry". Options: --toc-entry-backlinks, --toc-top-backlinks, --no-toc-backlinks.

traceback

Enable Python tracebacks when halt-level system messages and other exceptions occur. Useful for debugging, and essential for issue reports. Exceptions are allowed to propagate, instead of being caught and reported (in a user-friendly way) by Docutils.

Default: disabled (None) unless Docutils is run programmatically using the Publisher Interface. Options: --traceback, --no-traceback.

warning_stream

Path to a file for the output of system messages (warnings) [1].

Default: stderr (None). Options: --warnings.

[parsers]

Docutils currently supports only one parser, for reStructuredText.

[restructuredtext parser]

file_insertion_enabled

Enable or disable directives that insert the contents of external files, such as the "include" & "raw". A "warning" system message (including the directive text) is inserted instead. (See also raw_enabled for another security-relevant setting.)

Default: enabled (1). Options: --file-insertion-enabled, --no-file-insertion.

pep_references

Recognize and link to standalone PEP references (like "PEP 258").

Default: disabled (None); enabled (1) in PEP Reader. Options: --pep-references.

pep_base_url

Base URL for PEP references.

Default: "http://www.python.org/peps/". Option: --pep-base-url.

raw_enabled

Enable or disable the "raw" directive. A "warning" system message (including the directive text) is inserted instead. (See also file_insertion_enabled for another security-relevant setting.)

Default: enabled (1). Options: --raw-enabled, --no-raw.

rfc_references

Recognize and link to standalone RFC references (like "RFC 822").

Default: disabled (None); enabled (1) in PEP Reader. Options: --rfc-references.

rfc_base_url

Base URL for RFC references.

Default: "http://www.faqs.org/rfcs/". Option: --rfc-base-url.

tab_width

Number of spaces for hard tab expansion.

Default: 8. Options: --tab-width.

trim_footnote_reference_space

Remove spaces before footnote references.

Default: don't (None); may be overriden by a writer-specific footnote_references default though. Options: --trim-footnote-reference-space, --leave-footnote-reference-space.

[readers]

[standalone reader]

docinfo_xform

Enable or disable the bibliographic field list transform (docutils.transforms.frontmatter.DocInfo).

Default: enabled (1). Options: --no-doc-info.

doctitle_xform

Enable or disable the promotion of a lone top-level section title to document title (and subsequent section title to document subtitle promotion; docutils.transforms.frontmatter.DocTitle).

Default: enabled (1). Options: --no-doc-title.

sectsubtitle_xform

Enable or disable the promotion of the title of a lone subsection to a subtitle (docutils.transforms.frontmatter.SectSubTitle).

Default: disabled (0). Options: --section-subtitles, --no-section-subtitles.

[pep reader]

The pep_references and rfc_references options ([restructuredtext parser]) are set on by default.

[python reader]

Under construction.

[writers]

[docutils_xml writer]

doctype_declaration

Generate XML with a DOCTYPE declaration.

Default: do (1). Options: --no-doctype.

indents

Generate XML with indents and newlines.

Default: don't (None). Options: --indents.

newlines

Generate XML with newlines before and after tags.

Default: don't (None). Options: --newlines.

xml_declaration

Generate XML with an XML declaration. Also defined for the HTML Writer.

Caution!

The XML declaration carries text encoding information, without which standard tools may be unable to read the generated XML.

Default: do (1). Options: --no-xml-declaration.

[html4css1 writer]

attribution

Format for block quote attributions: one of "dash" (em-dash prefix), "parentheses"/"parens", or "none". Also defined for the LaTeX Writer.

Default: "dash". Options: --attribution.

cloak_email_addresses

Scramble email addresses to confuse harvesters. In the reference URI, the "@" will be replaced by %-escapes (as of RFC 1738). In the visible text (link text) of an email reference, the "@" and all periods (".") will be surrounded by <span> tags. Furthermore, HTML entities are used to encode these characters in order to further complicate decoding the email address. For example, "abc@example.org" will be output as:

<a class="reference" href="mailto:abc&#37;&#52;&#48;example&#46;org">
abc<span>&#64;</span>example<span>&#46;</span>org</a>

Note

While cloaking email addresses will have little to no impact on the rendering and usability of email links in most browsers, some browsers (e.g. the links browser) may decode cloaked email addresses incorrectly.

Default: don't cloak (None). Option: --cloak-email-addresses.

compact_lists

Remove extra vertical whitespace between items of bullet lists and enumerated lists, when list items are all "simple" (i.e., items each contain one paragraph and/or one "simple" sublist only). The behaviour can be specified directly via "class" attributes (values "compact" and "open") in the document.

Default: enabled (1). Options: --compact-lists, --no-compact-lists.

compact_field_lists

Remove extra vertical whitespace between items of field lists that are "simple" (i.e., all field bodies each contain at most one paragraph). The behaviour can be specified directly via "class" attributes (values "compact" and "open") in the document.

Default: enabled (1). Options: --compact-field-lists, --no-compact-field-lists.

embed_stylesheet

Embed the stylesheet in the output HTML file. The stylesheet file must be accessible during processing.

Default: enabled. Options: --embed-stylesheet, --link-stylesheet.

field_name_limit

The maximum width (in characters) for one-column field names. Longer field names will span an entire row of the table used to render the field list. 0 indicates "no limit". See also option_limit.

Default: 14 characters. Option: --field-name-limit.

footnote_references

Format for footnote references, one of "superscript" or "brackets". Also defined for the LaTeX Writer.

Overrides [2] trim_footnote_reference_space, if applicable. [4]

Default: "brackets". Option: --footnote-references.

initial_header_level

The initial level for header elements. This does not affect the document title & subtitle; see doctitle_xform.

Default: 1 (for "<h1>"). Option: --initial-header-level.

option_limit

The maximum width (in characters) for options in option lists. Longer options will span an entire row of the table used to render the option list. 0 indicates "no limit". See also field_name_limit.

Default: 14 characters. Option: --option-limit.

stylesheet

CSS stylesheet URL, used verbatim. Overrides the "stylesheet_path" setting [2]. Pass an empty string to deactivate stylesheet inclusion.

Default: None. Options: --stylesheet.

(Setting also defined for the LaTeX Writer.)

stylesheet_path

Path to CSS stylesheet [1]. Overrides the "stylesheet" URL setting [2]. Path is adjusted relative to the output HTML file. Also defined for the LaTeX Writer.

Default: "html4css1.css" in the docutils/writers/html4css1/ directory (installed automatically; for the exact machine-specific path, use the --help option). Options: --stylesheet-path.

xml_declaration

Generate XML with an XML declaration. Also defined for the Docutils XML Writer.

Caution!

The XML declaration carries text encoding information, without which standard tools may be unable to read the generated XML.

Default: do (1). Options: --no-xml-declaration.

[pep_html writer]

The PEP/HTML Writer derives from the standard HTML Writer, and shares all settings defined in the [html4css1 writer] section. The "[html4css1 writer]" section of configuration files is processed before the "[pep_html writer]" section.

The PEP/HTML Writer's default for the stylesheet_path setting differs from that of the standard HTML Writer: docutils/writers/pep_html/pep.css in the installation directory is used. For the exact machine-specific path, use the --help option.

no_random

Do not use a random banner image. Mainly used to get predictable results when testing.

Default: random enabled (None). Options: --no-random (hidden).

pep_home

Home URL prefix for PEPs.

Default: current directory ("."). Options: --pep-home.

template

Path to PEP template file [1].

Default: "pep-html-template" (in current directory). Options: --template.

python_home

Python's home URL.

Default: parent directory (".."). Options: --python-home.

[s5_html writer]

The S5/HTML Writer derives from the standard HTML Writer, and shares all settings defined in the [html4css1 writer] section. The "[html4css1 writer]" section of configuration files is processed before the "[s5_html writer]" section.

The S5/HTML Writer's default for the compact_lists setting differs from that of the standard HTML Writer: the default here is to disable compact lists.

current_slide

Enable or disable the current slide indicator ("1/15").

Default: disabled (None). Options: --current-slide, --no-current-slide.

overwrite_theme_files

Allow or prevent the overwriting of existing theme files in the ui/<theme> directory. This has no effect if "theme_url" is used.

Default: keep existing theme files (None). Options: --keep-theme-files, --overwrite-theme-files.

theme

Name of an installed S5 theme, to be copied into a ui/<theme> subdirectory, beside the destination file (output HTML). Note that existing theme files will not be overwritten; the existing theme directory you must be deleted manually. Overrides the "theme_url" setting [2].

Default: "default". Option: --theme.

theme_url

The URL of an S5 theme directory. The destination file (output HTML) will link to this theme; nothing will be copied. Overrides the "theme" setting [2].

Default: None. Option: --theme-url.

[latex2e writer]

use_latex_toc

To get pagenumbers in the table of contents the table of contents must be generated by latex. Usually latex must be run twice to get numbers correct.

Note: LaTeX will number the sections, which might be a bug in this case.

Default: off. Option: --use-latex-toc.

use_latex_footnotes

Use LaTeX-footnotes not a figure simulation. This might give no Hyperrefs on /to footnotes, but should be able to handle an unlimited number of footnotes.

Default: off. Option: --use-latex-footnotes.

hyperlink_color

Color of any hyperlinks embedded in text. Use "0" to disable coloring of links.

Default: "blue". Option: --hyperlink-color.

documentclass

Specify latex documentclass, but beaware that books have chapters articles not.

Default: "article". Option: --documentclass.

documentoptions

Specify document options. Multiple options can be given, separated by commas.

Default: "10pt,a4paper". Option: --documentoptions.

stylesheet

Specify a stylesheet file. Overrides stylesheet_path [2]. The file will be \input by latex in the document header. Also defined for the HTML Writer.

Default: no stylesheet (""). Option: --stylesheet.

stylesheet_path

Path to stylesheet [1]. Overrides "stylesheet" setting (--stylesheet) [2].

Please note that you will have to run latex from the directory containing the output file; otherwise the stylesheet reference will be invalid.

This setting is also defined for the HTML Writer.

Default: None. Option: --stylesheet-path.

footnote_references

Format for footnote references: one of "superscript" or "brackets". Also defined for the HTML Writer.

Overrides [2] trim_footnote_reference_space, if applicable. [4]

Default: "superscript". Option: --footnote-references.

attribution

Format for block quote attributions, the same as for the html-writer: one of "dash" (em-dash prefix), "parentheses"/"parens" or "none". Also defined for the HTML Writer.

Default: "dash". Option: --attribution.

compound_enumerators

Enable or disable compound enumerators for nested enumerated lists (e.g. "1.2.a.ii").

Default: disabled (None). Options: --compound-enumerators, --no-compound-enumerators.

section_prefix_for_enumerators

Enable or disable section ("." subsection ...) prefixes for compound enumerators. This has no effect unless compound_enumerators are enabled.

Default: disabled (None). Options: --section-prefix-for-enumerators, --no-section-prefix-for-enumerators.

section_enumerator_separator

The separator between section number prefix and enumerator for compound enumerated lists (see compound_enumerators).

Generally it isn't recommended to use both sub-sections and nested enumerated lists with compound enumerators. This setting avoids ambiguity in the situation where a section "1" has a list item enumerated "1.1", and subsection "1.1" has list item "1". With a separator of ".", these both would translate into a final compound enumerator of "1.1.1". With a separator of "-", we get the unambiguous "1-1.1" and "1.1-1".

Default: "-". Option: --section-enumerator-separator.

table_style

Specify the drawing of separation lines.

  • "standard" lines around and between cells.
  • "booktabs" a line above and below the table and one after the head.
  • "nolines".

Default: "standard". Option: --table-style.

[pseudoxml writer]

No settings are defined for this Writer.

[applications]

[buildhtml application]

prune

List of directories not to process. To specify multiple directories in configuration files, use colon-separated paths; on the command line, the option may be used more than once.

Default: none ([]). Options: --prune.

recurse

Recursively scan subdirectories, or ignore subdirectories.

Default: recurse (1). Options: --recurse, --local.

silent

Work silently (no progress messages). Independent of "report_level".

Default: show progress (None). Options: --silent.

[docfactory application]

(To be completed.)

Other Settings

These settings are only effective as command-line options, positional arguments, or for internal use; setting them in configuration files has no effect.

config

Path to a configuration file to read (if it exists) [1]. Settings may override defaults and earlier settings. The config file is processed immediately. Multiple --config options may be specified; each will be processed in turn.

Filesystem path settings contained within the config file will be interpreted relative to the config file's location (not relative to the current working directory).

Default: None. Options: --config.

_directories

(buildhtml.py front end.) List of paths to source directories, set from positional arguments.

Default: current working directory (None). No command-line options.

_disable_config

Prevent standard configuration files from being read. For programmatic use only.

Default: config files enabled (None). No command-line options.

_destination

Path to output destination, set from positional arguments.

Default: stdout (None). No command-line options.

_source

Path to input source, set from positional arguments.

Default: stdin (None). No command-line options.

[1](1, 2, 3, 4, 5, 6) Path relative to the working directory of the process at launch.
[2](1, 2, 3, 4, 5, 6, 7, 8) The overridden setting will automatically be set to None for command-line options and config file settings. Client programs which specify defaults that override other settings must do the overriding explicitly, by assigning None to the other settings.
[3]

Some notes on the dependency recorder:

  • Images are only added to the dependency list if the reStructuredText parser extracted image dimensions from the file.
  • Stylesheets are only added if they are embedded.
  • For practical reasons, the output of the LaTeX writer is considered merely an intermediate processing stage. The dependency recorder records all files the rendered file (e.g. in PDF or DVI format) depends on. Thus, images and stylesheets are both unconditionally recorded as dependencies when using the LaTeX writer.
[4](1, 2)

The footnote space is trimmed if the reference style is "superscript", and it is left if the reference style is "brackets".

The overriding only happens if the parser supports the trim_footnote_reference_space option.

Old-Format Configuration Files

Formerly, Docutils configuration files contained a single "[options]" section only. This was found to be inflexible, and in August 2003 Docutils adopted the current component-based configuration file sections as described above. Docutils will still recognize the old "[options]" section, but complains with a deprecation warning.

To convert existing config files, the easiest way is to change the section title: change "[options]" to "[general]". Most settings haven't changed. The only ones to watch out for are these:

Old-Format Setting New Section & Setting
pep_stylesheet [pep_html writer] stylesheet
pep_stylesheet_path [pep_html writer] stylesheet_path
pep_template [pep_html writer] template