What are you working on?

What are you working on? - Programming On Unix

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	seninha Offline \| 01-10-2022, 09:42 PM \| #400

I'm working on a plumber script, here's its config file:

Code:
# sample config file for seninha's plumber script (which will probably

# be rewritten into a C application).

#

# - Each paragraph (block of blank-delimited lines) can contain a series

#   of condition and actions

#

# - The conditions are only valid within a paragraph, except when the

#   paragraph has no action, in which case they are valid through the

#   entire file.

#

# - Each condition or action has the form <SUBJECT> <PREDICATE> <ARGUMENTS>

#

# - For example `data matches 'en.wikipedia.org'` has `data` as subject,

#   `matches` as predicate and `'en.wikipedia.org'` as argument.

#

# - Conditions have predicate `matches` (which test whether subject

#   matches a regexp argument) or `set` (which is always true).

#

# - A `matches` condition can set variables.  If the second argument

#   is `into`, all matched parentheses are assigned to the following

#   arguments in order.

#

# - A `set` condition sets its subject to the result of the arguments.

#   If the first argument is `running`, the remaining argument must be

#   a command whose output is set to the subject.

#

# - Actions have predicate `by`.

#

# - If plumb(1) is invoked with -o, a matching action with subject

#   "open" is executed.  This opens the file.

#

# - If plumb(1) is invoked with -e, a matching action with subject

#   "edit" is executed.  This edits the file.

#

# - If plumb(1) is invoked with -s, a matching action with subject

#   "here" is executed.  This opens the file on an already open

#   application.

#

# - If the first argument of an action is `running`, the remaining

#   arguments are commands to be run.

#

# - If the first argument of an action is `setting`, the remaining

#   arguments specify a X Property to be set.

# set global variables

data     matches     '(([A-Za-z]+):(//)?)?(.*(\.([A-Za-z0-9]+))?)' into _ protocol _ file _ extension

mime     set running file -ib -- $data

# youtube video

protocol matches     '(ytdl|https?|)'

file     matches     '(.*/)?[A-Za-z0-9_-]{11}'

open     by running  mpv --force-window=immediate -- ytdl://$file

# web page

protocol matches     '(https?|)'

file     matches     '(www\.)?[a-zA-Z0-9_@\-]+([.:][a-zA-Z0-9_@\-]+)*/?[a-zA-Z0-9_?,%#~&/\-+=]+([:.][a-zA-Z0-9_?,%#~&/\-+=]+)*'

open     by running  surf -- $data

here     by setting  _SURF_GO of active 'Surf' 'surf'

# html file

protocol matches     '(file|)'

mime     matches     'text/html'

open     by running  surf -- file://$file

here     by setting  _SURF_GO of active 'Surf' 'surf'

edit     by running  $TERMCMD -e $EDITOR -- $file

The syntax is based on plan9's plumb.
Different from p9p's plumb, it can set X11 properties (to open things in surf(1)) and run different commands depending on whether I'm wanting to open or edit the file.
So it can open a image in nsxiv or edit it in gimp.