If the very first or very last character of an argument is a newline, then that character is ignored if it would be part of a regular plaintext node.
For example:generates something like:instead of:This is extremely convenient to improve the readability of code blocks and similar constructs.
\C[[
a
b
]]
<pre><code>a
b</code></pre>
<pre><code>
a
b
</code></pre>
The newline is however considered if it would be part of some insane macro shortcut. For example, we can start an insane list inside a quotations as in:where the insane list requires a leading newline
\Q[
* a
* b
]
which renders as:
- a
- b
\n*
to work. That newline is not ignored, even though it comes immediately after the \Q[
opening.