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dot in textEditor to repeat last action

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Dustin Swan 2026-03-19 20:21:26 -06:00
parent 717ec2048b
commit 0d43dc0128
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GPG key ID: 30D46587E2100467
1 changed files with 7 additions and 2 deletions
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src/cg/06-textEditor.cg
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@ -109,12 +109,13 @@ textEditor = name \
applyOperator = operator motion state \
target = resolveMotion motion state;
action = { operator = operator, motion = motion };
stateSnapshot = { lines = state.lines, cursorRow = state.cursorRow, cursorCol = state.cursorCol };
newState = operator
| Delete \ (motion
| WholeLine \ deleteLine state
| _ \ { state = deleteRange state target.from target.to, emit = [] });
{ state = clampCursor newState.state.{ undoStack = [stateSnapshot, ...state.undoStack], pending = None }, emit = newState.emit };
{ state = clampCursor newState.state.{ undoStack = [stateSnapshot, ...state.undoStack], pending = None, lastAction = Some action }, emit = newState.emit };
moveCursor = motion state \
state.{ cursorCol = motion.to.col, cursorRow = motion.to.row };
@ -276,7 +277,8 @@ textEditor = name \
undoStack = [],
redoStack = [],
mode = Normal, # Normal | Insert | Visual
pending = None # Some "d" | Some "g" | etc.
pending = None, # Some "d" | Some "g" | etc.
lastAction = None, # Some { operator, motion }
},
update = state event \ state.mode
@ -318,6 +320,9 @@ textEditor = name \
| Key { key = "w" } \ (state.pending
| None \ withScroll { state = moveCursor (resolveMotion Word state) state, emit = [] }
| Some Delete \ withScroll (applyOperator Delete Word state))
| Key { key = "." } \ (state.lastAction
| None \ { state = state, emit = [] }
| Some action \ applyOperator action.operator action.motion state)
| Key { key = "W", ctrl = True, shift = True } \ write state
| Key { key = "A", ctrl = True, shift = True } \ apply state
# any other key or event