HTML to braille

Inputs

• Input HTML
  The HTML you want to convert to braille.
  Media-type:

  • application/xhtml+xml
  • text/html
  Sequence: no

Outputs

• HTML with inline CSS
  The intermediary HTML file with inline CSS.
  Media-type:

  • application/xhtml+xml
• PEF
  The intermediary PEF file.
  Media-type:

  • application/x-pef+xml
• OBFL
  The intermediary OBFL file.
  Media-type:

  • application/x-obfl+xml
• PDF
  A PDF version of the braille showing ASCII braille.
  Media-type:

  • application/pdf
• Output file
  The output braille file.
  Media-type:

  • text
• Preview
  An HTML preview of the braille result.
  Media-type:

  • text/html

Options

• PDF: horizontal offset
  Tweak the position of content on the page horizontally.

  Tweak the position of content on the page horizontally.

  A positive offset results in a shift to the right, a negative offset results in a shift to the left.

  Possible values: A positive or negative length

  The syntax is as follows (described in terms of CSS grammar):

  length
   : '0' | unary_operator number unit
   ;
  unit
   : 'mm' | 'cm' | 'in' | 'px'
   ;
  

  Default value: 0
• Braille code
  Braille code to be used for braille transcription.

  Braille code to be used for braille transcription.

  If set, braille transcription is done using the selected braille code. If left empty, the braille code is determined by the document language. Note that braille transcription can also be controlled through CSS @text-transform rules.

  Possible values: <liblouis-table-query>
  Default value:
• ASCII braille table for HTML preview
  The ASCII braille table used to render the HTML and PDF previews.

  The ASCII braille table used to render the HTML and PDF previews.

  If left blank, the locale information in the input document will be used to select a suitable table.

  Possible values: <preview-table>
  Default value:
• Duplex
  When enabled, will print on both sides of the paper.
  Possible values: true or false
  Default value: true
• Transformer features
  Features of the braille transformer.

  Features of the braille transformer.

  Features of the braille transformer to be used for creating the paginated braille document from the CSS styled input document. Together with the “Braille code” option this determines the transformer that is selected.

  Possible values: A query

  The syntax is as follows (described in terms of CSS grammar):

  query
   : feature*
   ;
  feature
   : '(' S* IDENT S* [ ':' S* value ]? ')' S*
   ;
  value
   : string | integer | IDENT
   ;
  

  Default value: (translator:liblouis)(formatter:dotify)
• PDF: scale font
  Tweak the size of the font.

  Tweak the size of the font.

  Increase or decrease the font of the PDF by providing a scaling factor higher or lower than 100%.

  Possible values: A percentage
  Default value: 100%
• Page width
  The number of columns available for printing.

  The number of columns available for printing.

  Sets the default page width (this can be overwritten with @page rules) and affects media queries that use the ‘width’ feature. The variable $page-width is available in Sass style sheets.

  See the CSS specification for more info:

  • the @page rule
  • the size property
  • the page dimensions media features
  Possible values: Any <integer>
  Default value: 40
• Include PEF
  Whether or not to keep the intermediary PEF file (for debugging).
  Possible values: true or false
  Default value: false
• Style sheet parameters
  A list of parameters passed to the style sheets.

  A list of parameters passed to the style sheets.

  Style sheets, whether they’re user style sheets (specified with the “Style sheets” option) or author style sheets (associated with the source), may have parameters (Sass variables). This option, which takes a comma-separated list of key-value pairs enclosed in parenthesis, can be used to set these variables.

  For example, if a style sheet uses the Sass variable “foo”:

  @if $foo {
     /* some style that should only be enabled when "foo" is truthy */
  }
  

  you can control that variable with the following parameters list: (foo:true).

  Possible values: <stylesheet-parameters>
  Default value: ()
• PDF: vertical offset
  Tweak the position of content on the page vertically.

  Tweak the position of content on the page vertically.

  A positive offset results in a shift downwards, a negative offset results in a shift upwards.

  Possible values: A positive or negative length

  The syntax is as follows (described in terms of CSS grammar):

  length
   : '0' | unary_operator number unit
   ;
  unit
   : 'mm' | 'cm' | 'in' | 'px'
   ;
  

  Default value: 0
• Include OBFL
  Whether or not the keep the intermediary OBFL file (for debugging).

  Whether or not the keep the intermediary OBFL file (for debugging).

  The OBFL may also be edited and transformed to the final braille document using the “OBFL to braille” script.

  Possible values: true or false
  Default value: false
• Page height
  The number of rows available for printing.

  The number of rows available for printing.

  Sets the default page height (this can be overwritten with @page rules) and affects media queries that use the ‘height’ feature. The variable $page-height is available in Sass style sheets.

  See the CSS specification for more info:

  • the @page rule
  • the size property
  • the page dimensions media features
  Possible values: Any <integer>
  Default value: 25
• Output file format
  The file format in which to store the braille result.

  The file format in which to store the braille result.

  The file format must be expressed in the media query syntax. For example, to select a file format suited for the U.S., set the option to (-daisy-locale: en-US). To use the braille character set used in the Netherlands and store to a file with extension “.brl”, set the option to (-daisy-locale: nl) AND (-daisy-file-extension: \.brl).

  If left blank, the braille will be stored in PEF format.

  Possible values: <medium>
  Default value:
• Style sheets
  CSS/Sass style sheets to take into account.

  CSS/Sass style sheets to take into account.

  Each style sheet must be specified as a URI, absolute or relative to the input.

  Style sheets specified through this option are called “user style sheets”. Style sheets can also be attached to the source document. These are referred to as “author style sheets”. They can be linked (using an ‘xml-stylesheet’ processing instruction or a ‘link’ element), embedded (using a ‘style’ element) and/or inlined (using ‘style’ attributes). Only author styles that apply to “embossed” media are taken into account.

  All style sheets are applied at once, but the order in which they are specified has an influence on the cascading order. Author styles take precedence over user styles.

  Style sheets are interpreted according to braille CSS rules.

  For info on how to use Sass (Syntactically Awesome StyleSheets) see the Sass manual.

  A number of partials (helper style sheet modules) are available for use in Sass style sheets:

  • http://www.daisy.org/pipeline/modules/braille/html-to-pef/_generate-toc.scss: for generating a table of content
  • http://www.daisy.org/pipeline/modules/braille/html-to-pef/_tables.scss: for styling tables
  • http://www.daisy.org/pipeline/modules/braille/html-to-pef/_definition-lists.scss: for styling definition lists
  • http://www.daisy.org/pipeline/modules/braille/html-to-pef/_legacy.scss: collection of styles that used to be included by default
  Possible values: <anyURI>
  Default value:
• Include preview
  Whether or not to include a HTML preview of the braille result.
  Possible values: true or false
  Default value: false
• Trimming of overflowing text
  Allow trimming of overflowing text.

  Allow trimming of overflowing text.

  By default, text that overflows its containing box will result in an error. By selecting this option, overflowing text will be truncated and generate a warning instead whenever possible. Notably, this will happen with text within page margins (top, right, bottom and left) that is too long to fit the space.

  Possible values: true or false
  Default value: false
• PDF: font color
  The font color of the PDF.

  The font color of the PDF.

  Defaults to black.

  Possible values: An RGB hex color code
  Default value: #000000
• Hyphenation at page boundaries
  Whether hyphenation of words at page boundaries is allowed or not.

  Whether hyphenation of words at page boundaries is allowed or not.

  This option only determines whether hyphenation is allowed at page boundaries. The “Hyphenation” option and the CSS determine how the hyphenation is done, when allowed.

  Possible values: One of the following:

  false

  Never hyphenate words at page boundaries

  except-at-volume-breaks

  Allow hyphenation at page boundaries except when it's a volume boundary

  true

  Allow hyphenation at page boundaries

  Default value: false
• Include PDF
  Whether or not to include a PDF version of the braille result showing ASCII braille.
  Possible values: true or false
  Default value: false
• Include HTML with inline CSS
  Whether or not the include the intermediary HTML with all CSS styles inlined (for debugging).
  Possible values: true or false
  Default value: false