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@asciidoctor/reducer

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@asciidoctor/reducer

An Asciidoctor.js extension to reduce an AsciiDoc document containing includes and conditionals to a single AsciiDoc document.

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Asciidoctor Reducer

An Asciidoctor.js extension that reduces an AsciiDoc document containing include directives to a single AsciiDoc document by expanding the includes reachable from the parent document. Additionally, the extension evaluates preprocessor conditionals (unless the option to preserve them is enabled), only keeping those lines from conditions which are true. If the document does not contain any preprocessor directives, the extension provides access to the unmodified source.

(The CLI and API are not currently available in the JavaScript version).

Install

This package depends on the asciidoctor package (>= 2.2.0, < 3.0.0), but doesn’t declare it as a dependency. Therefore, you must install that package when installing this one.

$ npm i asciidoctor @asciidoctor/reducer

If you’re using the extension with Antora, there’s no need to install the asciidoctor package as Antora provides it.

Usage

Extension

You can use this extension in combination with the load API provided by Asciidoctor. If you want to register the extension globally, require the library as follows:

const Asciidoctor = require('asciidoctor')()

require('@asciidoctor/reducer').register()

When you use the Asciidoctor load API, the document will automatically be reduced. You can access the reduced source by calling either the getSource() or getSourceLines() on the loaded document.

const doc = Asciidoctor.loadFile('main.adoc', { safe: 'safe' })

console.log(doc.getSource())

You can pass a registry instance to the register method to register the extension with a scoped registry (scoped to the load API call).

const Asciidoctor = require('asciidoctor')()

const registry = Asciidoctor.Extensions.create()
require('@asciidoctor/reducer').register(registry)

const doc = Asciidoctor.loadFile('main.adoc', { extension_registry: registry, safe: 'safe' })

You can also require @asciidoctor/reducer/extensions to access the Extensions class.

Copyright (C) 2021-present Dan Allen and the individual contributors to this project. Use of this software is granted under the terms of the MIT License.

Trademarks

AsciiDoc(R) and AsciiDoc Language(TM) are trademarks of the Eclipse Foundation, Inc.

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Package last updated on 24 Nov 2024

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