smalltalk - How to undo > 1 in Squeak -

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how undo in squeak more 1 time? using coglinux-vm, squeak-image 4.5 squeak source version 41.

i wrote test code in workspace window , want undo more steps, squeak won't it.

support multiple undo has been dropped in 2009 when integrating texteditor cuis. findable in morphic package history (or @ http://source.squeak.org/trunk/morphic-ar.149.diff)

cuis fork of squeak aiming @ simpler code in general, , particularly simpler morphic (all code must understandable single programmer yet remain powerfull), see http://www.jvuletich.org/cuis/index.html.

it sounds main usage of texteditor in browser, , methods short enough not require multiple undo... @ least there no complaints until then, , guess drop un-noticed. possible might have been accidental rather deliberate...

however, object used storing multiple undo history still there (editcommand) , there preferences (multipletextundo) unsent restored...

it exercize see how hard/easy restoring feature be. start tracking usage of editcommand , multipletextundo in old version of morphic.


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