Hi Marshall,
Today I stumbled again upon some behaviour related to comment blocks.
I am sending my observations attached.
I realised that it is probably important that I am usually working
*with* the ``autoindent`` option *set*. There might be conclusions of
mine which hold only when auto-indentation is in effect. This
complicates things a bit.
So far,
Friedrich
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Some observations regarding comment block indentation
#####################################################
Variables:
1. The comment block is placed right at the beginning of the file -OR-
there is is an empty line before;
2. The ``autoindent`` option is on -OR- off.
This is with ``vim-8.2.2845``.
Behaviour *with* the ``autoindent`` option
==========================================
The comment block starts the file
---------------------------------
* The next line is indented by 3 spaces.
* Pressing Enter repeatedly moves the cursor just downwards in the same
column.
* Changing the level of indentation right in the block's first line leads
to removal of any indentation when pressing Enter. This also holds
when changing the indentation back to 3 spaces prior to pressing Enter.
* When changing the level of indentation in any later line, this changed
indentation is preserved.
With a blank line above the comment block
-----------------------------------------
* The next line is indented by 3 spaces.
* Pressing Enter repeatedly leads to an alternation of no indentation and
indentation by 3 spaces in the following lines.
* Providing any input on the first line in the comment block indents the
following line by 3 spaces, and afterwards the alternating behaviour
appears. This also holds when reducing the level of indentation to 0
in the first line.
* After having committed a line without further input (by just pressing
Enter), any input on subsequent lines will break the chain of
alternating indentation, restoring to *no* indentation.
*Without* ``autoindent`` in action
==================================
The comment block starts the file
---------------------------------
* The next line is indented by 3 spaces, and pressing Enter starts the
next line at its beginning. This also holds when changing the level of
indentation in the block's first line.
With a blank line above the comment block
-----------------------------------------
* The next line is indented by 3 spaces.
* This indentation is preserved when pressing Enter repeateadly.
* Providing input on the first line, Enter restores the indentation to 3
spaces. When doing so in right the next line, this behaviour shows up
again.
* After "committing" a line with 3 spaces auto-indentation (by just
pressing Enter) any input on a subsequent line "breaks the chain": The
next line will feature *no* indentation.
