Allow the icon and the states in the dir segment to be easy configurable by users.

[raul-benito]

I want to add new icons depending on the path. I think the easiest way is to allow the users to modify an associative array.

Please tell me what you think about this approach.

[romkatv]

Thanks for the contribution. Looks useful.

I've merged it after a few changes. You can now define POWERLEVEL9K_DIR_CLASSES to specify custom styling and icons for different directories.

POWERLEVEL9K_DIR_CLASSES must be an array with 3 * N elements. Each triplet consists of:

1. A pattern against which the current directory is matched. Matching is done with extended_glob option enabled.
2. Directory class for the purpose of styling.
3. Icon.

Triplets are tried in order. The first triplet whose pattern matches $PWD wins. If there are no matches, there will be no icon and the styling is done according to POWERLEVEL9K_DIR_BACKGROUND,
POWERLEVEL9K_DIR_FOREGROUND, etc.

Example:

POWERLEVEL9K_DIR_CLASSES=(
    '~/work(/*)#'  WORK     '(╯°□°）╯︵ ┻━┻'
    '~(/*)#'       HOME     '⌂'
    '*'            DEFAULT  '')

POWERLEVEL9K_DIR_WORK_BACKGROUND=red
POWERLEVEL9K_DIR_HOME_BACKGROUND=blue
POWERLEVEL9K_DIR_DEFAULT_BACKGROUND=yellow

With the settings, the current directory in the prompt may look like this:

(╯°□°）╯︵ ┻━┻ ~/work/projects/important/urgent

⌂ ~/best/powerlevel10k

[romkatv]

For the referenced, related issues and PRs from p9k:

• Expanding on custom directory icons Powerlevel9k/powerlevel9k#1387
• Request: Custom icons for custom folders Powerlevel9k/powerlevel9k#606