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This gem processes Asciidoctor documents following a template for generating Acme documents.

The gem currently inherits from the gem, and aligns closely to it. Refer to the ISO gem documentation for guidance, including

The following outputs are generated.

  • an XML representation of the document, intended as a document model for Acme documents.

  • The XML representation is processed in turn to generate the following outputs as end deliverable Acme documents.

    • HTML

    • AsciiMathML is to be used for mathematical formatting. The gem uses the Ruby AsciiMath parser, which is syntactically stricter than the common MathJax processor; if you do not get expected results, try bracketing terms your in AsciiMathML expressions.


The preferred way to invoke this gem is via the metanorma script:

$ metanorma --type acme a.adoc                   # output HTML
$ metanorma --type acme --extensions html a.adoc # output just HTML
$ metanorma --type acme --extensions xml a.adoc  # output RSD XML

The gem translates the document into Metanorma XML format, and then validates its output against the Metanorma XML document model; errors are reported to console against the XML, and are intended for users to check that they have provided all necessary components of the document.

The gem then converts the XML into HTML.

The gem can also be invoked directly within asciidoctor, though this is deprecated:

$ asciidoctor -b acme -r 'metanorma-acme' a.adoc


If you are using a Mac, the repository has instructions on setting up your machine to run Metanorma scripts such as this one. You need only run the following in a Terminal console:

$ bash <(curl -s
$ gem install metanorma-acme
$ gem install metanorma-cli


Document model

The Acme Document model used by this gem is an instance of the StandardDocument model.

The Metanorma XML format intends to introduce rigor into the Acme standards authoring process, and is prescribed in a separate document.


Asciidoctor has been selected as the authoring tool to generate the document model representation of Acme standards. It is a document formatting tool like Markdown and DocBook, which combines the relative ease of use of the former (using relatively lightweight markup), and the rigor and expressively of the latter (it has a well-defined syntax, and was in fact initially developed as a DocBook document authoring tool). Asciidoctor has built-in capability to output Text, DocBook and HTML; so it can be used to preview the file as it is being autA

Generating documents via a document model substantially automated formatting associated with the document, including automating numbering of headings, figures, tables etc, and automatically generating references and citations. hored.

Document Attributes

Common attributes

The gem relies on Asciidoctor document attributes to provide necessary metadata about the document. The metanorma-standoc gem documents the Asciidoctor document attributes common to all metanorma gems. These include:


The document edition


The date the document was last updated


The year which will be claimed as when the copyright for the document was issued


The main component of the English title of the document (mandatory). (The first line of the AsciiDoc document, which contains the title introduced with =, is ignored)


The document type (mandatory). The permitted types are:


Code Artifact




Proposal; includes IETF DRAFT


Recommendation; includes IETF RFC




The document status. The permitted types are: proposal, working-draft, committee-draft, draft-standard, final-draft, published, withdrawn.


The name of the relevant M3D technical committee (mandatory)


The language of the document (only en for now)

The attribute :draft:, if present, includes review notes in the XML output; these are otherwise suppressed.

Asciidoctor features specific to Acme

The metanorma-standoc gem documents the customisations of Asciidoctor markup common to all metanorma gems. The following markup is specific to this gem: