kramdown - Online in the Cloud

PROGRAM:

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.

OPTIONS

-i, --input ARG
Specify the input format. Available input formats: kramdown (this is the default),
markdown, GFM or html.

-o, --output ARG
Specify one or more output formats separated by commas: html (default), kramdown,
latex, pdf or remove_html_tags.

-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

--coderay-bold-every ARG

Defines how often a line number should be made bold

Can either be an integer or false (to turn off bold line numbers completely).

Default: 10 Used by: HTML converter

--coderay-css ARG

Defines how the highlighted code gets styled

Possible values are :class (CSS classes are applied to the code elements, one must
supply the needed CSS file) or :style (default CSS styles are directly applied to
the code elements).

Default: style Used by: HTML converter

--coderay-default-lang ARG

Sets the default language for highlighting code blocks

If no language is set for a code block, the default language is used instead. The
value has to be one of the languages supported by coderay or nil if no default
language should be used.

Default: nil Used by: HTML converter

--coderay-line-number-start ARG

The start value for the line numbers

Default: 1 Used by: HTML converter

--coderay-line-numbers ARG

Defines how and if line numbers should be shown

The possible values are :table, :inline or nil. If this option is nil, no line
numbers are shown.

Default: :inline Used by: HTML converter

--coderay-tab-width ARG

The tab width used in highlighted code

Used by: HTML converter

--coderay-wrap ARG

Defines how the highlighted code should be wrapped

The possible values are :span, :div or nil.

Default: :div Used by: HTML converter

--[no-]enable-coderay

Use coderay for syntax highlighting

If this option is `true`, coderay is used by the HTML converter for syntax
highlighting the content of code spans and code blocks.

Default: true Used by: HTML 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

--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

--[no-]hard-wrap

Interprets line breaks literally

Insert HTML `<br />` tags inside paragraphs where the original Markdown document
had newlines (by default, Markdown ignores these newlines).

Default: true Used by: GFM parser

--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

--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-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: coderay 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

EXIT STATUS

The exit status is 0 if no error happened. Otherwise it is 1.

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