You will know things are running if you see this on your screen...
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You will know things are running if you see this on your screen... |
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This is a Smalltalk workspace window. You can make selections, type, and use cmd-X, C, V for editing as you might expect. In addition cmd-D ("do-it") will execute the current selection, and cmd-P ("print-it") will execute it and paste the result just beyond the current selection. Double-clicking is timing-independent (you just click twice in the same place), and works not only inside words, but also next to bracket characters to select a matching bracketed range.
Note that you can get a scroll bar by moving slightly to the left of the text, when the window is active (ie has been clicked in). Note also that, once you have a scroll bar, you can get a menu of edit commands by moving your cursor into the rightmost 25% of the scroll bar (the cursor will change to a tiny menu). This can be very useful if command keys don't work on your platform.
Here are some things you can do in this workspace...
| 0 tinyBenchmarks <print-it> | "Will print the speed of this VM and platform" |
| 100 factorial <print-it> | "Will show off Squeak's extended arithmetic" |
| Display restoreAfter: [Pen new mandala: 35] <do-it> | "Draws a pretty picture" "Speed is noteworthy, since the line-drawing primitive (104) is not implemented, so this call BitBlt separately for every point" "Note: you have click to refresh the screen afterward" |
If you click outside the workspace, it will bring up a menu of various possible operations, most notably to open new browsers, etc. At this point, if you are not a Squeaker already, then you should probably visit http://Squeak.org and investigate the considerable tutorial resources catalogued there.
Dan Ingalls wrote this VM with the sole goal of being able to run the Mini2.1 image because "it is such a delightfully compact system." To run current Squeak images, the following work would need to be done: