Some attributes must me set from command line

[edusantana]

There are some attributes that must be set from command line:

File off-line.adoc:

== Links off-line
:linkattrs:
:nofooter:
:linkcss:
:iconfont-remote!:
:stylesdir: css
:stylesheet: asciidoctor2.css
:icons: font

Content here.

If I run:

asciidoctor off-line.adoc

The expected intent was to include css/asciidoctor2.css as: <link rel="stylesheet" href="css/asciidoctor2.css">

But I end up with a embedded style:

<style>
/* Asciidoctor default stylesheet | MIT License | http://asciidoctor.org */ 
(...)
</style>

But it I run

asciidoctor -a stylesheet=asciidoctor2.css -a stylesdir=css -a linkcss off-line.adoc

It works!

I think it's related to #578

[mojavelinux]

The only attributes the must be specified from the commandline or via the API are the "secure attributes", which are identified in this table: http://asciidoctor.org/docs/user-manual/#builtin-attributes

The problem you are having is that you are trying to set header-only attributes outside of the document header. A document header either starts with a doctitle:

= Links off-line
:linkattrs:
:nofooter:
:linkcss:
:iconfont-remote!:
:stylesdir: css
:stylesheet: asciidoctor2.css
:icons: font

Content here.

or a list of attribute entries:

:linkattrs:
:nofooter:
:linkcss:
:iconfont-remote!:
:stylesdir: css
:stylesheet: asciidoctor2.css
:icons: font

== Links off-line

Content here.

[mojavelinux]

A second-level heading is not a valid document header.