[#954] parser.rs: enable multiline descriptions

[gabriel-vanzandycke]

This PR adds the possibility to split description into multiple lines.
#954

The following cheat sheet:

% test
# Single line description
echo "hello world"
# Multilines
# description 1
```
echo -n hello
echo    world
```
# Multilines
# description 2
echo "hello world"
# Single line description
```
echo -n hello
echo    world
```

Yields the following result:

[welcome]

Thanks for opening this pull request!

[gabriel-vanzandycke]

I'm working on the multi-line code-block and multi-line description. Here is how I would like it to render

I'm almost there. The tag, description and snippet column are correctly rendered, but I struggle with the next columns (in terminal.rs). Can someone help me understand the purpose of the DELIMITER and what is expected by fzf?

[kit494way]

I'm not sure I understand your question correctly, but I will comment on what I understand about DELIMITER.
DELIMITER is a field separator that separates tags, descriptions, commands, and other fields.
DELIMITER is passed to fzf's --delimiter option.

navi/src/finder/mod.rs

Lines 113 to 114 in 6f1bbcf

	"--delimiter",
	deser::terminal::DELIMITER.to_string().as_str(),

In manual of fzf:

-d, --delimiter=STR
Field delimiter regex for --nth, --with-nth, and field index expressions (default: AWK-style)

DELIMITER is used when we change the order of columns by passing --with-nth option to fzf.
For example, without --with-nth:

With --with-nth:

Does this help?

[gabriel-vanzandycke]

It did. Thanks!! I hadn't realized that the delimiter could be used for multiple columns within fzf. I'm updating this PR description to integrate latest changes.