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Beauty of Tcl/Tk in one tweet (twitter.com/ankovcom)
9 points by alexkarta on June 15, 2020 | hide | past | favorite | 9 comments



I prefer Rebol or Red VID dialect.

Here's the same code in Red VID...

    Red []

    view compose [
        text (rejoin [{The sum of } figs: [1 2 3 4] { is: }])
        answer: text {}
        return
        button "Push me to calculate" on-click [answer/text: to-string sum figs]
    ]


Been looking at Red and Rebol for a long time but unfortunately they can't get this to work in Linux (the last time I tried it)


@9214 pointed you to Linux GTK builds of Red. My example was tested in macOS so haven't tried it on Linux but you'll need GTK & 32bit compatibility libraries installed for it to work.

Rebol/View as always worked on Linux though you will also need 32bit compat + Freetype libraries - https://stackoverflow.com/questions/34524169/rebol-2-stopped...

And there's a 64-bit Rebol 3 with R3-GUI from Atronix, which should only need Freetype library installed - https://www.atronixengineering.com/downloads

The VID has changed a little bit over time. Here's the example in Rebol2 View...

    Rebol []

    view layout compose [
        across
        text (rejoin [{The sum of } figs: [1 2 3 4] { is: }])
        answer: text {......}
        return
        button "Push me to calculate" 200x20 [
            answer/text: to-string sum figs
            show answer
        ]   
    ] 
And here it is in Rebol 3 / R3-GUI...

    load-gui

    view compose [
        hgroup [
            text (rejoin [{The sum of } figs: [1 2 3 4] { is: }])
            answer: text {......}
            return
            button "Push me to calculate" on-click [
                set-face answer to-string sum figs
            ]
        ]
    ]
Both scripts above worked fine on my Ubuntu 18 Linux.

NB. Rebol doesn't come with a SUM function so here's one defined...

    sum: func [s /local total] [
        total: 0
        forall s [total: total + s/1]
        total
    ]



Looks nice. Never even heard about it. Indeed influenced by Lisp


TclTk is extremely cryptic. I used to code IVR scripts for Cisco access servers in early 20th, most of them still in use today. A couple of unsuccessful attempts were made to customize them by other people, but nobody (including me myself) knows how do they work. The art had been lost forever.


In comparison to many popular languages (e.g., Python, Java), to success with Tcl (not only about Tcl), one needs to be a real fan, because it's not about engineering, it's about passion and art


Perhaps proof that beauty is subjective


Beauty is in the eye of the beholder. Sadly, OP was hallucinating with this tweet.




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