Provided by: kramdown_2.4.0-2_all 
NAME
kramdown - a fast, pure-Ruby Markdown-superset converter
SYNOPSIS
kramdown [options] [FILE...]
DESCRIPTION
kramdown is primarily used for parsing a superset of Markdown and converting it to
different output formats. It supports standard Markdown (with some minor modifications)
and various extensions like tables and definition lists. Due to its modular architecture
it also allows other input formats than Markdown, for example, HTML or Github Flavored
Markdown.
If FILE is not specified, kramdown reads from the standard input. The result is written to
the standard output.
There are two sets of options that kramdown accepts: The first one includes the options
that are used directly by the kramdown binary. The second set of options controls how
kramdown parses and converts its input.
Default values for this second set can be set using YAML via the configuration file
kramdownrc. Note that configuration option names use underscores, not dashes (dashes are
just used in the CLI options names), and boolean options do not have a no variant but a
value of true or false. This file has to be in XDG_CONFIG_HOME on Linux/Unix,
~/Library/Preferences on macOS and ~/AppData/Local on Windows.
CLI-ONLY OPTIONS
-i FORMAT, --input FORMAT
Specify the input format. Available input formats: kramdown (this is the default),
markdown, or html. The input format GFM is available through the
kramdown-parser-gfm gem.
-o FORMAT, --output FORMAT
Specify one or more output formats separated by commas: html (default), kramdown,
latex, man or remove_html_tags. The converter pdf is available through the
kramdown-converter-pdf gem.
-x EXT, --extension EXT
Load one or more extensions. The name of the extension should not include the
kramdown- prefix, e.g. just parser-gfm. Multiple extensions can be loaded by
separating them with commas.
Note: This option has to be used before any other options that rely on the
extension already being loaded.
--no-config-file
Do not read any configuration file. Default behavior is to check for a
configuration file and read it if it exists.
--config-file FILE
Override the default path and name of the configuration file.
-v, --version
Show the version of kramdown.
-h, --help
Show the help.
KRAMDOWN OPTIONS
--auto-id-prefix ARG
Prefix used for automatically generated header IDs
This option can be used to set a prefix for the automatically generated header IDs
so that there is no conflict when rendering multiple kramdown documents into one
output file separately. The prefix should only contain characters that are valid in
an ID!
Default: ‘’ Used by: HTML/Latex converter
--[no-]auto-id-stripping
Strip all formatting from header text for automatic ID generation
If this option is true, only the text elements of a header are used for generating
the ID later (in contrast to just using the raw header text line).
This option will be removed in version 2.0 because this will be the default then.
Default: false Used by: kramdown parser
--[no-]auto-ids
Use automatic header ID generation
If this option is true, ID values for all headers are automatically generated if no
ID is explicitly specified.
Default: true Used by: HTML/Latex converter
--entity-output ARG
Defines how entities are output
The possible values are :as_input (entities are output in the same form as found in
the input), :numeric (entities are output in numeric form), :symbolic (entities are
output in symbolic form if possible) or :as_char (entities are output as characters
if possible, only available on Ruby 1.9).
Default: :as_char Used by: HTML converter, kramdown converter
--footnote-backlink ARG
Defines the text that should be used for the footnote backlinks
The footnote backlink is just text, so any special HTML characters will be escaped.
If the footnote backlint text is an empty string, no footnote backlinks will be
generated.
Default: '&8617;' Used by: HTML converter
--[no-]footnote-backlink-inline
Specifies whether the footnote backlink should always be inline
With the default of false the footnote backlink is placed at the end of the last
paragraph if there is one, or an extra paragraph with only the footnote backlink is
created.
Setting this option to true tries to place the footnote backlink in the last,
possibly nested paragraph or header. If this fails (e.g. in the case of a table),
an extra paragraph with only the footnote backlink is created.
Default: false Used by: HTML converter
--footnote-nr ARG
The number of the first footnote
This option can be used to specify the number that is used for the first footnote.
Default: 1 Used by: HTML converter
--footnote-prefix ARG
Prefix used for footnote IDs
This option can be used to set a prefix for footnote IDs. This is useful when
rendering multiple documents into the same output file to avoid duplicate IDs. The
prefix should only contain characters that are valid in an ID!
Default: ‘’ Used by: HTML
--forbidden-inline-options ARG
Defines the options that may not be set using the {::options} extension
The value needs to be an array of option names.
Default: [template] Used by: HTML converter
--header-offset ARG
Sets the output offset for headers
If this option is c (may also be negative) then a header with level n will be
output as a header with level c+n. If c+n is lower than 1, level 1 will be used. If
c+n is greater than 6, level 6 will be used.
Default: 0 Used by: HTML converter, Kramdown converter, Latex converter
--[no-]html-to-native
Convert HTML elements to native elements
If this option is true, the parser converts HTML elements to native elements. For
example, when parsing <em>hallo</em> the emphasis tag would normally be converted
to an :html element with tag type :em. If html_to_native is true, then the emphasis
would be converted to a native :em element.
This is useful for converters that cannot deal with HTML elements.
Default: false Used by: kramdown parser
--latex-headers ARG
Defines the LaTeX commands for different header levels
The commands for the header levels one to six can be specified by separating them
with commas.
Default: section,subsection,subsubsection,paragraph,subparagraph,subparagraph Used
by: Latex converter
--line-width ARG
Defines the line width to be used when outputting a document
Default: 72 Used by: kramdown converter
--link-defs ARG
Pre-defines link definitions
This option can be used to pre-define link definitions. The value needs to be a
Hash where the keys are the link identifiers and the values are two element Arrays
with the link URL and the link title.
If the value is a String, it has to contain a valid YAML hash and the hash has to
follow the above guidelines.
Default: {} Used by: kramdown parser
--list-indent ARG
Sets the number of spaces to use for list indentation
Default: 2 Used by: Kramdown converter
--math-engine ARG
Set the math engine
Specifies the math engine that should be used for converting math blocks/spans. If
this option is set to +nil+, no math engine is used and the math blocks/spans are
output as is.
Options for the selected math engine can be set with the math_engine_opts
configuration option.
Default: mathjax Used by: HTML converter
--math-engine-opts ARG
Set the math engine options
Specifies options for the math engine set via the math_engine configuration option.
The value needs to be a hash with key-value pairs that are understood by the used
math engine.
Default: {} Used by: HTML converter
--[no-]parse-block-html
Process kramdown syntax in block HTML tags
If this option is true, the kramdown parser processes the content of block HTML
tags as text containing block-level elements. Since this is not wanted normally,
the default is false. It is normally better to selectively enable kramdown
processing via the markdown attribute.
Default: false Used by: kramdown parser
--[no-]parse-span-html
Process kramdown syntax in span HTML tags
If this option is true, the kramdown parser processes the content of span HTML tags
as text containing span-level elements.
Default: true Used by: kramdown parser
--[no-]remove-block-html-tags
Remove block HTML tags
If this option is true, the RemoveHtmlTags converter removes block HTML tags.
Default: true Used by: RemoveHtmlTags converter
--[no-]remove-line-breaks-for-cjk
Specifies whether line breaks should be removed between CJK characters
Default: false Used by: HTML converter
--[no-]remove-span-html-tags
Remove span HTML tags
If this option is true, the RemoveHtmlTags converter removes span HTML tags.
Default: false Used by: RemoveHtmlTags converter
--smart-quotes ARG
Defines the HTML entity names or code points for smart quote output
The entities identified by entity name or code point that should be used for, in
order, a left single quote, a right single quote, a left double and a right double
quote are specified by separating them with commas.
Default: lsquo,rsquo,ldquo,rdquo Used by: HTML/Latex converter
--syntax-highlighter ARG
Set the syntax highlighter
Specifies the syntax highlighter that should be used for highlighting code blocks
and spans. If this option is set to +nil+, no syntax highlighting is done.
Options for the syntax highlighter can be set with the syntax_highlighter_opts
configuration option.
Default: rouge Used by: HTML/Latex converter
--syntax-highlighter-opts ARG
Set the syntax highlighter options
Specifies options for the syntax highlighter set via the syntax_highlighter
configuration option.
The value needs to be a hash with key-value pairs that are understood by the used
syntax highlighter.
Default: {} Used by: HTML/Latex converter
--template ARG
The name of an ERB template file that should be used to wrap the output or the ERB
template itself.
This is used to wrap the output in an environment so that the output can be used as
a stand-alone document. For example, an HTML template would provide the needed
header and body tags so that the whole output is a valid HTML file. If no template
is specified, the output will be just the converted text.
When resolving the template file, the given template name is used first. If such a
file is not found, the converter extension (the same as the converter name) is
appended. If the file still cannot be found, the templates name is interpreted as a
template name that is provided by kramdown (without the converter extension). If
the file is still not found, the template name is checked if it starts with
‘string://’ and if it does, this prefix is removed and the rest is used as template
content.
kramdown provides a default template named ‘document’ for each converter.
Default: ‘’ Used by: all converters
--toc-levels ARG
Defines the levels that are used for the table of contents
The individual levels can be specified by separating them with commas (e.g. 1,2,3)
or by using the range syntax (e.g. 1..3). Only the specified levels are used for
the table of contents.
Default: 1..6 Used by: HTML/Latex converter
--[no-]transliterated-header-ids
Transliterate the header text before generating the ID
Only ASCII characters are used in headers IDs. This is not good for languages with
many non-ASCII characters. By enabling this option the header text is
transliterated to ASCII as good as possible so that the resulting header ID is more
useful.
The stringex library needs to be installed for this feature to work!
Default: false Used by: HTML/Latex converter
--typographic-symbols ARG
Defines a mapping from typographical symbol to output characters
Typographical symbols are normally output using their equivalent Unicode codepoint.
However, sometimes one wants to change the output, mostly to fallback to a sequence
of ASCII characters.
This option allows this by specifying a mapping from typographical symbol to its
output string. For example, the mapping {hellip: ...} would output the standard
ASCII representation of an ellipsis.
The available typographical symbol names are:
• hellip: ellipsis
• mdash: em-dash
• ndash: en-dash
• laquo: left guillemet
• raquo: right guillemet
• laquo_space: left guillemet followed by a space
• raquo_space: right guillemet preceded by a space
Default: {} Used by: HTML/Latex converter
EXIT STATUS
The exit status is 0 if no error happened. Otherwise it is 1.
SEE ALSO
The kramdown website ⟨http://kramdown.gettalong.org⟩ for more information, especially on
the supported input syntax.
AUTHOR
kramdown was written by Thomas Leitner ⟨t_leitner@gmx.at⟩ .
This manual page was written by Thomas Leitner ⟨t_leitner@gmx.at⟩ .
January 2019 KRAMDOWN(1)