do is extra special. But really I think you're importantly missing that -e evaluates exactly one expression and ignores whatever is after

$ clojure -M -e '1 2'
1
2

seems like let would be useful here?

I tried let. I can try again...

I stand corrected on -e, it does loop

$ wc `which clojure`
  491  1616 13498 /usr/local/bin/clojure

I thought it only did one

I've seen 3 line versions of the clojure bash script

not sure how that one was install, but it's the big bash script

so they might behave different?

ultimately they all call clojure.main, which should be the same

dunno

makes sense

I'll try let again

top level do is extra special in that it breaks up the exprs inside it and evals them each as top level expressions, and it's the only thing like that

$ clojure -M -e '(let [___ (do (eval (read-string "(def x 123)")) x)] ___)'
Syntax error compiling at (REPL:1:11).
Unable to resolve symbol: x in this context

I see

I guess a do-set! thing is not possible.

I think I can do this another way. I just need to wrap the last form in the generated block, rather than the whole block.

Hoping that works out in all cases...

I don’t understand what your actual goal is

It's too much to explain here. It took me a long time to work my problems into a form that I felt could be easily understood and talked about here. I got my definitive answer from you, and I really appreciate it. I'll stop pursuing that strategy and find another.

I'll write a quick summary of my goals in #C05HQFMTURF and link that thread back here.

Here you go. https://clojurians.slack.com/archives/C05HQFMTURF/p1709314244806099 That's my goal. 😄

Seems like a top level do should be your friend

No. I need to capture the evaluation value of each group. And unless a group is at the top level (or inside a do) it will fail if it has symbols that need to be resolved at runtime. Wrapping it anything that can capture and save the value, cause it to not be at the top level. This works because the x symbol can be resolved at compile time (I'm no expert at exactly what "compile time" means so go easy on my words...):

$ clojure -M -e '(def ___ (atom []))  (swap! ___ conj (do (def x 123) x))  @___'
#'user/___
[123]
[123]

$ clojure -M -e '(def ___ (atom []))  (swap! ___ conj (do (eval (read-string "(def x 123)")) x))  @___'
#'user/___
Syntax error compiling at (REPL:1:38).
Unable to resolve symbol: x in this context

$ clojure -M -e '(eval (read-string "(def x 123)")) x'
#'user/x
123

$ clojure -M -e '(do (eval (read-string "(def x 123)")) x)'
123

Fortunately my solution to wrap the last expr in a group seems to be working out perfectly:

$ clojure -M -e '(def ___ (atom []))  (do (eval (read-string "(def x 123)")) (swap! ___ conj x))  @___'
#'user/___
[123]
[123]

I already implemented it. Here's the input YS code, the result from running it and the compilation to Clojure code.

$ cat foo.ys 
- a
- b
---
- c
- d
--- !yamlscript/v0
a =: $$.1
b =: $$.2
concat: a b

$ ys -l foo.ys 
["a","b","c","d"]

$ ys -c foo.ys 
(+++ ["a" "b"])
(+++ ["c" "d"])
(def a (__ @$$ 1))
(def b (__ @$$ 2))
(+++ (concat a b))

why are you trying to jam everything through -e ?

you can pipe whatever you want through stdin

I just find it a convenient way to show short, easy to reproduce examples for these kind of discussions:

$ clojure -M -e '(do (eval (read-string "(def x 123)")) x)'
123
$ clojure -M <(echo '(do (eval (read-string "(def x 123)")) x)')
$ echo '(do (eval (read-string "(def x 123)")) x)' | clojure -M -
$ echo '(do (eval (read-string "(def x 123)")) (println x))' | clojure -M -
123

I use -e one liners constantly for perl python ruby node bash clojure bb ys ...

there are no Clojure constructs designed to generate classes with those features

Depending on how many classes you need to make, writing a bit of java for this purpose isn't too bad. Both https://github.com/phronmophobic/clong/ and dtype.next use https://github.com/jgpc42/insn to generate classes that work with JNA

In many cases, clong can automatically generate a clojure wrapper for a c library just by passing it some headers. If you're interested, there's a #clong channel. Otherwise, if you're going to roll your own, you can see what using insn might look like at https://github.com/phronmophobic/clong/blob/ff97f8ea88baf9974ee3ed518a3a34048f408690/src/com/phronemophobic/clong/gen/jna.clj#L202

Here are jna bindings using https://github.com/cnuernber/dtype-next/blob/master/src/tech/v3/datatype/ffi/jna.clj. Also if you want JNA specific bindings I think perhaps look into https://cljdoc.org/d/clj-native/clj-native/0.9.5/doc/readme.

@U7RJTCH6J insn looks realy neat, it might be a good fit for me! I'll check it out later. Generating java source file probably won't be a big problem because it's rather obvious what needs to be written but if insn already satisfies my problems, I don't see a reason why I would need to make that Java source code generator. I'm not sure how helpful clong will be because the header I'm parsing is a bit odd. There's barely any functions defined in the header, instead I have typedefs and comments that explain API functions. I get a pointer that I can use to request a desired function and then I call that desired function. I pass header file to clang with -ast-dump=json and then analyze the dumped json.

A bit unclear what the actual problem is. Why do you need to check for the icon specifically and not, say, the window itself? If the icon represents some state, maybe it's possible to check for the state directly instead of "looking" at the icon?

> maybe it’s possible to check for the state directly instead of it is not by intention

don’t ask 🙂 just it needs to be done in this way

> the window itself What do you mean?

it's been a while since I wrote anything for macOS desktop, but you won't be able to do this with Clojure, you're looking at ObjC/Swift and AppKit and window manager internals. Possibly also requesting screen recording permission & accessibility settings to be able to start figuring out if what you're looking for is on any screen. Listening to http://atp.fm podcast the complaining about window management APIs in macOS is a recurrent topic, aslo check the FAQ here https://hypercritical.co/switchglass/#faq

On Windows, you can use https://www.autohotkey.com/. Despite its name, it's not really about hotkeys. The program and its scripting language are quite powerful. > What do you mean? You can trigger a function when a window with specific properties appears - the parent program, the title, window flags, I think even the window icon. And if what you want to do can only be achieved by searching for a specific image on screen, it can do that too.

ah this is what you mean, not it not a window icon, it is icon which app display in app area

no way to make screenshot of the app from Java in OS X ? that would be not expected

You can make a screenshot in a platform-specific way, but searching for a specific image there will be much harder than with AutoHotkey and similar things.