Talks to Watch

Lucid Energize Demo VHS 1993

11K views · May 16, 2014 · 25:04 · 0 HN recommenders · 20 mentions · discussed 2016–2026

A 1993 VHS demo of Lucid Energize, a database-backed, incremental C/C++ programming environment built on XEmacs. It shows features like incremental compilation, live debugging and hyperlinked output.

Why Hacker News points people here: HN cites it constantly as evidence that modern IDE and LSP-style features existed in the early 90s.

“the first IDE to offer something like LSP was a C++ one actually, Energize C++.”HN comment, 2022

What Hacker News said 20

Cites itpjmlpJan 2016

“IDE capabilities that probably only Lucid C++ had in the 90's”

Demo of Lucid Energize C++ IDE capabilities

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I also only toyed with Ada. My real work experience with Algol like languages are Turbo Pascal, Delphi and Oberon. Although thanks to my interest into compiler development during my CS degree, I also do have some knowledge of almost all major Wirth influenced languages. Personally, I do prefer some verbosity to lines full of symbols. Ada 2012 is quite good. It is also remarkable that in the 80's Ada 83 as seen as almost impossible to implement and nowadays C++ is way complexer to implement than Ada 2012. Another anecdote, Rational started out in mid-80's as a startup doing Ada workstations[1] (think Ada machines), with IDE capabilities that probably only Lucid C++ had in the 90's [2]. [1] link [1] link [2] this video

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Cites itpjmlpMay 2016

“there was an early attempt to provide C++ repls back in the early 90's with Lucid Energize C++”

Early 90s interactive C++ environment demo

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Interactive programming is very developer friendly workflow, something that was already possible at Xerox PARC in their Smalltalk, Interlisp-D and Mesa/CEDAR environments. Actually there was an early attempt to provide C++ repls back in the early 90's with Lucid Energize C++, after they pivoted from Lisp Machines and applied their knowledge to C++. this video Also the majority of CERN code is written in a mix of Fortran and C++, and not all teams like to use Python. So they rather use something that provides interactivity to research their algorithms and speed at the same time.

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Cites itpjmlpMay 2016

“Like Lucid Energize C++ in 1993 ?”

1993 demo of an advanced C++ IDE

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Like Lucid Energize C++ in 1993 ? this video Or C++ Builder or C Set++ for OS/2 (might have the name wrong). If it wasn't for tool vendors having switched their focus from C++ to Java and .NET, until LLVM and clang got created showing everyone what was wrong with their approaches, C++ IDEs might have been much more advanced already, in spite of technical issues with language.

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Cites itpjmlpOct 2016

“well this was a C++ environment in 1993”

1993 C++ environment built on Lucid Common Lisp infrastructure

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The point being that we have seen the future like Bret puts it, and are to certain extent disappointed that the industry keeps doing left turns. Many C++ users are finally enjoying environments like Clion and incremental compilers, well this was a C++ environment in 1993: this video Built on top of Lucid Common Lisp infrastructure, as Lucid pivoted their business to C++. IBM had a similar one, that imported C++ into a database, offering a Smalltalk like development experience for C++, called VisualAge C++ Professional 4.0 link So yeah, we are grey hair dogs disappointed how things evolve.

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Cites itpjmlpNov 2017

“Here is a demo on YouTube.”

Demo of early Lucid C++ IDE

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It existed, but sadly both were too early for the market. The first one was from Lucid, after pivoting away from Lisp Machines. link Here is a demo on YouTube. this video IBM also tried to create a Smalltalk style repository in Visual Age for C++ v4.0, which has quite resource hungry for mid-90's PCs. So we had to wait until the idea of compiler as library to catch on, to get those ideas back.

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Cites itpjmlpApr 2018

“And how it looked like with their Emacs customization in 1993 on UNIX.”

Energize C++ with Emacs customization in 1993

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Here is how Lucid implemented their C++ knowledge repository for Energize C++. "Foundation for a C++ Programming Environment", chapter 7, Protocols link And how it looked like with their Emacs customization in 1993 on UNIX. this video

in “Apple's investment into Clangd and refactoring tooling” · view on HN
Cites itpjmlpFeb 2020

“It would look like Lucid Energize for C++, here a 1993 sales demo”

1993 sales demo of Lucid Energize C++

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It would look like Lucid Energize for C++, here a 1993 sales demo: this video Or the version 4 of IBM's Visual Age for C++ Visual Age for C++ was quite impressive, the whole program was serialized into a database, an approach similar to Energize, and you could edit C++ code just like in a Smalltalk environment. Sadly not much of it has survived, so save pages like this while they exist link The problem with those two products was that they were ahead of their time, so with their hardware requirements, ended up being a commercial failure. Then for something more down to earth, there is C++ Builder, the only actual C++ RAD tooling, but their market is only deep pocket corporations. Think VB experience, but using C++ instead. link Finally there is VC++, which also supports edit-and-continue with incremental compilation and linking, and with C++/CX I thought it could eventually be like C++ Builder but was wrong. Also with the C++/WinRT reboot, the tooling is still playing catch up with C++/CX. However there is also the option to use interpreters like Cling. Then you also have the development experience of Common Lisp, Dylan and Eiffel. All of those have rich IDEs, with interpreter/JIT compilers for development, and then you can also AOT optimize for release builds. Eiffel to this day uses their JIT (oder MELT as they call it) for rapid development, and then relies on a C or C++ compiler for the release builds. Dylan while killed by Apple, had a short commercial life, and you can

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Cites itsedachvMar 2020

“Lucid Energize and IBM VisualAge C++ did incremental compilation and had IDE features not available with Free Software C++ compilers and editors/debuggers.”

Energize had incremental compilation and IDE features

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Compare Symbolics Genera to a Free Software Common Lisp development environment today (SBCL and SLIME on GNU Emacs). The latter does a lot less and is more bloated. Commercial Common Lisp compilers like Allegro and LispWorks have features and optimizations that Free Software compilers lack (Allegro has really good debugging tools and garbage collection, LispWorks has excellent support for concurrent programming). Intel Fortran compiler and their C++ compiler produce the fastest code. Lucid Energize and IBM VisualAge C++ did incremental compilation and had IDE features not available with Free Software C++ compilers and editors/debuggers. this video link

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Cites itpjmlpJul 2020

“You can see it in action on this 1993 marketing video from Lucid,”

1993 marketing video showing Lucid's database-backed IDE

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Rejuvenating that many devs are finally looking into this kind of workflows. For prior work on IDE as database check "Energize/Cadillac & Lucid's Demise", link You can see it in action on this 1993 marketing video from Lucid, this video IBM also tried the same concept on Visual Age for C++, version 4, which was one of the very last versions of the product. link Both suffered from too heavy hardware requirements for what most companies were willing to pay for, otherwise we could have had Smalltalk like tooling, with incremental compilation and reloading for C++ already during the early 90's.

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Cites itAlbertoGPJul 2020

“today I watched a demonstration of an IDE from the 1990s linked from another HN discussion”

1990s IDE demo with hyperlinked debugger output

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The video is not bad but as I watched it when it came out I thought that they missed what for me is the most interesting part: how the console/debugger/ui combination is fully hyperlinked: link There are precedents of that though: from what I’ve seen in videos and read in manuals, the integrated LISP environments like Genera did have that much earlier. That was built by teams of people with way more resources than him. I think Terry Davis was right in that some valuable things have been lost in modern computing systems. BTW, today I watched a demonstration of an IDE from the 1990s linked from another HN discussion which also hyperlinked things like the debugger (gdb) output etc.: this video It was the company that made Lucid Emacs (later XEmacs) which they built for this purpose: graphic elements combined with monospace text.

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Cites itselfSep 2020

“Lucid Energize did it”

Function-level incremental recompilation in Energize

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> (One could think of an even finer grained approach that would track changes in individual functions or classes and thus recompile even less than a file, but I’m not aware of practical implementations of such an approach in industrial languages, and altogether it doesn’t seem necessary.) Lucid Energize did it: this video Incomplete source code: link

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Cites itpjmlpDec 2020

“Lucid Energize C++ tooling from 1993 already enjoyed some of these features”

Early IDE features like live debugging in 1993 C++ tooling

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autocompletions have been a feature in IDEs since Visual C++ was introduced, and copied by Java IDEs, and naturally Visual Studio for .NET languages as well. Introspection, graphical code navigation has been a thing in Apple MPW, Borland C++ for Windows, Visual Age for C++ (latter CSet++), C++ Builder, Eclipse, Visual Cafe, Visual Studio Enterprise. Live debugging and recompilation, edit-and-continue in Visual Studio, JVM class reload capabilities and JRebel JVM agents. REPLs, available as standard feature in Java since Java 9, prior to that there were IDE features like Eclipse Scrappages. Visual Basic interactive mode (classical VB), and nowadays F#, C# and VB.NET interactive shells on VS, including send-to-repl capability. Lucid Energize C++ tooling from 1993 already enjoyed some of these features: this video

Cites itpjmlpJan 2021

“how Lucid used Lisp ideas for their Energize C++ IDE, including an image based format for AST storage”

Lucid applying Lisp ideas to a C++ IDE

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Be prepared to be amazed with what Xerox PARC and others were doing, while Bell Labs was busy pushing for UNIX. "Eric Bier Demonstrates Cedar" link "Emulating a Xerox Star (8010) Information System Running the Xerox Development Environment (XDE) 5.0" link "Documents as User Interfaces Video Demo" link "SYMBOLICS S-PACKAGES 3D GRAPHICS AND ANIMATION DEMO" link "Alto System Project: Dan Ingalls demonstrates Smalltalk" link "Action!, the worlds first dynamic interface builder - 1988" (Interface Builder percursor, written in Lisp) link "The Interlisp programming environment" link And the cherry, how Lucid used Lisp ideas for their Energize C++ IDE, including an image based format for AST storage this video link

Cites itpjmlpJun 2021

“It was already possible in the early 90's.”

Early 90s C++ tooling demo

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It was already possible in the early 90's. link "Lucid Energize Demo VHS 1993" this video VisualAge C++ Version 4.0 link link However they were too resource hungry for the hardware of those days, then Java and .NET took over the spotlight, and until clang/LLVM came into the scene, the industry forgot of what was already possible.

Cites itpjmlpOct 2021

“With VC++ and Unreal catching up with Lucid Energize[0], others will have to up their game.”

Benchmark for C++ IDE tooling

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And in languages that try to replace C++, better offer nice IDE tooling as well. link link With VC++ and Unreal catching up with Lucid Energize[0], others will have to up their game. [0] - this video

Cites itpjmlpApr 2022

“the first IDE to offer something like LSP was a C++ one actually, Energize C++.”

XEmacs-based Energize environment from 1993

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Nope, there were plenty of VS plugins like Visual Assist, and the first IDE to offer something like LSP was a C++ one actually, Energize C++. Here is the documentation to cadillac, link , and the respective demo of their XEmacs based environment from 1993. this video Refactoring is one feature of IDEs, not the whole package. Still, here is your refactoring rubicon in Visual Age for C++ (1999), link

Cites itlispmMay 2022

“a databased-backed incremental C++ development system for UNIX (called Energize).”

Lucid's incremental C++ development system

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Yeah, that's more like it. RPG worked a lot to bring sophisticated Lisp to UNIX systems. He worked on bringing a standard OOP system to Lisp (incl. Lisp Machines, where Lucid (and he personally) collaborated with Xerox PARC and Symbolics to develop CLOS as a part of the ANSI Common Lisp standard). Then he tried to develop and market similar technology in the form of a databased-backed incremental C++ development system for UNIX (called Energize). this video He hoped that the market for C++ environments was larger than the shrinking Lisp market and that C++ developers would want an interactive system with integrated code management in an object store. That did not went well.

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Cites itpjmlpSep 2023

“Energize C++, which came out from Lucid as they pivoted away from Lisp Machines”

Energize C++ interactive environment based on XEmacs

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Julia main focus is scientific computing, and they aren't doing that bad, link There have been other interactive environments for C++ that predate ROOT, but they were too resource intensive and the market killed them. Namely, Energize C++, which came out from Lucid as they pivoted away from Lisp Machines, applying the same kind of technology to C++, based on XEmacs. this video link And the last version of Visual Age for C++, based on the Smalltalk development experience. link link

in “Interactive GCC (igcc) is a read-eval-print loop (REPL) for C/C++” · view on HN
Cites itpjmlpNov 2025

“See Energize C++, as Lucid was pivoting away from Common Lisp”

Energize with incremental compilation and hot reload

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Back when C++ was becoming famous, my favourite programming language was Object Pascal, in the form of Turbo Pascal, having been introduced to it via TP 5.5 OOP mini booklet. Shortly thereafter Turbo Pascal 6 was released, and I got into Turbo Vision, followed by Turbo Pascal 1.5 for Windows 3.1, the year thereafter. I was a big Borland fan, thus when you got the whole stuff it was Object Pascal/C++, naturally C was there just because all C++ vendors started as C vendors. On Windows and OS/2 land, C++ IDEs shared a lot with Smalltalk and Xerox PARC ideas in developer experience, it wasn't the vi + command line + debuggers are for the weak kind of experience. See Energize C++, as Lucid was pivoting away from Common Lisp, with Cadillac what we would call a LSP nowadays, where you could do incrementatl compilation on method level and hot reload "Lucid Energize Demo VHS 1993" this video link Or the Visual Age for C++ version 4, which introduced a database, image like system for doing C++ in workflows similar to Smalltalk. link link Then there is C++ Builder, still going on, even though the way Borland went down spoiled its market mindshare, link You're right altougth C++ was born on UNIX at Bell Labs there is that point of view, and also a reason why I always had much more fun with C++ across Mac OS, OS/2, Windows, BeOS, and Symbian, with their full stack frameworks and IDE tooling. However with time I moved into managed languages, application languages, where it is enough t

Cites itpjmlpMay 2026

“it was born for Energize C++, in 1993!”

Energize C++ demo, origin of XEmacs

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Many of those features were already available in MS-DOS and Windows 3.x IDEs from Borland for Turbo Pascal and C++. Which is why when I got into UNIX development felt like going into the stone age of development tools, thankfully XEmacs was already there. Which by the way, it was born for Energize C++, in 1993! this video Also here is what NeXTSTEP development environment looked like, used for Quake tooling development, in a 1991 marketing video. link Which is why, I usually assert I cannot understand the nostalgia of CLI and TUI, being there at the time, and not being able to use some of these systems, due to the amount of money they required.

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