trace.arc.t « 0.vm.arc « archive - mu - Soul of a tiny new machine. More thorough tests → More comprehensible and rewrite-friendly software → More resilient society.

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1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659	(selective-load "mu.arc" section-level) (test-only-settings) (add-code:readfile "trace.mu") (ero "running tests in trace.arc.t (takes ~10 mins)") (freeze function) (load-system-functions) (reset2) (new-trace "print-trace") (run-code main (default-space:space-address <- new space:literal 30:literal/capacity) (x:string-address <- new "schedule: main run: main 0: (((1 integer)) <- ((copy)) ((1 literal))) run: main 0: 1 => ((1 integer)) mem: ((1 integer)): 1 <= 1 run: main 1: (((2 integer)) <- ((copy)) ((3 literal))) run: main 1: 3 => ((2 integer)) mem: ((2 integer)): 2 <= 3 run: main 2: (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) mem: ((1 integer)) => 1 mem: ((2 integer)) => 3 run: main 2: 4 => ((3 integer)) mem: ((3 integer)): 3 <= 4 schedule: done with routine") (s:stream-address <- init-stream x:string-address) (traces:instruction-trace-address-array-address <- parse-traces s:stream-address) (screen:terminal-address <- init-fake-terminal 70:literal 15:literal) (browser-state:space-address <- browser-state traces:instruction-trace-address-array-address 30:literal/screen-height) (print-traces-collapsed browser-state:space-address screen:terminal-address) (1:string-address/raw <- get screen:terminal-address/deref data:offset) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) ;? (prn memory.1) (when (~screen-contains memory.1 70 (+ "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " "+ main/ 2 : 4 => ((3 integer)) ")) (prn "F - print-traces-collapsed works")) ;? (quit) ;? 1 (reset2) (new-trace "print-trace-from-middle-of-screen") (run-code main (default-space:space-address <- new space:literal 30:literal/capacity) (x:string-address <- new "schedule: main run: main 0: (((1 integer)) <- ((copy)) ((1 literal))) run: main 0: 1 => ((1 integer)) mem: ((1 integer)): 1 <= 1 run: main 1: (((2 integer)) <- ((copy)) ((3 literal))) run: main 1: 3 => ((2 integer)) mem: ((2 integer)): 2 <= 3 run: main 2: (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) mem: ((1 integer)) => 1 mem: ((2 integer)) => 3 run: main 2: 4 => ((3 integer)) mem: ((3 integer)): 3 <= 4 schedule: done with routine") (s:stream-address <- init-stream x:string-address) (traces:instruction-trace-address-array-address <- parse-traces s:stream-address) (1:terminal-address/raw <- init-fake-terminal 70:literal 15:literal) ; position the cursor away from top of screen (cursor-down 1:terminal-address/raw) (cursor-down 1:terminal-address/raw) (browser-state:space-address <- browser-state traces:instruction-trace-address-array-address 30:literal/screen-height) (print-traces-collapsed browser-state:space-address 1:terminal-address/raw traces:instruction-trace-address-array-address) (2:string-address/raw <- get 1:terminal-address/raw/deref data:offset) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.2 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " "+ main/ 2 : 4 => ((3 integer)) ")) (prn "F - print-traces-collapsed works anywhere on the screen")) (run-code main2 (print-character 1:terminal-address/raw ((#\ literal)))) (when (~screen-contains memory.2 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " "+ main/ 2 : 4 => ((3 integer)) " " ")) (prn "F - print-traces-collapsed leaves cursor at next line")) (reset2) (new-trace "process-key-move-up-down") (run-code main (default-space:space-address <- new space:literal 30:literal/capacity) (x:string-address <- new "schedule: main run: main 0: (((1 integer)) <- ((copy)) ((1 literal))) run: main 0: 1 => ((1 integer)) mem: ((1 integer)): 1 <= 1 run: main 1: (((2 integer)) <- ((copy)) ((3 literal))) run: main 1: 3 => ((2 integer)) mem: ((2 integer)): 2 <= 3 run: main 2: (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) mem: ((1 integer)) => 1 mem: ((2 integer)) => 3 run: main 2: 4 => ((3 integer)) mem: ((3 integer)): 3 <= 4 schedule: done with routine") (s:stream-address <- init-stream x:string-address) (1:instruction-trace-address-array-address/raw <- parse-traces s:stream-address) (2:terminal-address/raw <- init-fake-terminal 70:literal 15:literal) ; position the cursor away from top of screen (cursor-down 2:terminal-address/raw) (cursor-down 2:terminal-address/raw) (3:space-address/raw <- browser-state 1:instruction-trace-address-array-address/raw 30:literal/screen-height) ; draw trace (print-traces-collapsed 3:space-address/raw/browser-state 2:terminal-address/raw 1:instruction-trace-address-array-address/raw) ; move cursor up ; we have no way yet to test special keys like up-arrow (s:string-address <- new "k") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ; draw cursor (replace-character 2:terminal-address/raw ((#\* literal))) (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " " main/ 2 : 4 => ((3 integer)) ")) ;^cursor (prn "F - process-key can move up the cursor")) (run-code main2 (default-space:space-address <- new space:literal 30:literal/capacity) ; reset previous cursor (replace-character 2:terminal-address/raw ((#\+ literal))) ; move cursor up 3 more lines (s:string-address <- new "kkk") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (replace-character 2:terminal-address/raw ((#\* literal))) ) ; cursor is now at line 3 (when (~screen-contains memory.4 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " " main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " ;^cursor "+ main/ 1 : 3 => ((2 integer)) " "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " "+ main/ 2 : 4 => ((3 integer)) ")) (prn "F - process-key can move up multiple times")) ; try to move cursor up thrice more (run-code main3 (default-space:space-address <- new space:literal 30:literal/capacity) (replace-character 2:terminal-address/raw ((#\+ literal))) (s:string-address <- new "kkk") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (replace-character 2:terminal-address/raw ((#\* literal))) ) ; cursor doesn't go beyond the first line printed ; stuff on screen before browser-state was initialized is inviolate (when (~screen-contains memory.4 70 (+ " " " " " main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " ;^cursor "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " "+ main/ 2 : 4 => ((3 integer)) ")) (prn "F - process-key doesn't move above bounds")) ; now move cursor down 4 times (run-code main4 (default-space:space-address <- new space:literal 30:literal/capacity) (replace-character 2:terminal-address/raw ((#\+ literal))) (s:string-address <- new "jjjj") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (replace-character 2:terminal-address/raw ((#\* literal))) ) (when (~screen-contains memory.4 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " " main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " ;^cursor "+ main/ 2 : 4 => ((3 integer)) ")) (prn "F - process-key can move down multiple times")) ; try to move cursor down 4 more times (run-code main5 (default-space:space-address <- new space:literal 30:literal/capacity) (replace-character 2:terminal-address/raw ((#\+ literal))) (s:string-address <- new "jjjj") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (replace-character 2:terminal-address/raw ((#\* literal))) ) (when (~screen-contains memory.4 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " "+ main/ 2 : 4 => ((3 integer)) " " ")) (prn "F - process-key doesn't move below bounds")) (reset2) (new-trace "process-key-expand") (run-code main (default-space:space-address <- new space:literal 30:literal/capacity) (x:string-address <- new "schedule: main run: main 0: (((1 integer)) <- ((copy)) ((1 literal))) run: main 0: 1 => ((1 integer)) mem: ((1 integer)): 1 <= 1 run: main 1: (((2 integer)) <- ((copy)) ((3 literal))) run: main 1: 3 => ((2 integer)) mem: ((2 integer)): 2 <= 3 run: main 2: (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) mem: ((1 integer)) => 1 mem: ((2 integer)) => 3 run: main 2: 4 => ((3 integer)) mem: ((3 integer)): 3 <= 4 schedule: done with routine") (s:stream-address <- init-stream x:string-address) (1:instruction-trace-address-array-address/raw <- parse-traces s:stream-address) (2:terminal-address/raw <- init-fake-terminal 70:literal 15:literal) ; position the cursor away from top of screen (cursor-down 2:terminal-address/raw) (cursor-down 2:terminal-address/raw) (3:space-address/raw <- browser-state 1:instruction-trace-address-array-address/raw 30:literal/screen-height) ; draw trace (print-traces-collapsed 3:space-address/raw/browser-state 2:terminal-address/raw 1:instruction-trace-address-array-address/raw) (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " "+ main/ 2 : 4 => ((3 integer)) ")) (prn "F - process-key: before expand")) (run-code main2 (default-space:space-address <- new space:literal 30:literal/capacity) ; move cursor to final line and expand (s:string-address <- new "k\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) ; final line is expanded (when (~screen-contains memory.4 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " "- main/ 2 : 4 => ((3 integer)) " " mem : ((3 integer)): 3 <= 4 " " schedule : done with routine ")) (prn "F - process-key expands the trace index at cursor on <enter>")) ; and cursor should remain on the top-level line (run-code main3 (replace-character 2:terminal-address/raw ((#\* literal))) ) (when (~screen-contains memory.4 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " " main/ 2 : 4 => ((3 integer)) " ;^cursor " mem : ((3 integer)): 3 <= 4 " " schedule : done with routine ")) (prn "F - process-key positions cursor at start of trace index after expanding")) (reset2) (new-trace "process-key-expand-nonlast") (run-code main (default-space:space-address <- new space:literal 30:literal/capacity) (x:string-address <- new "schedule: main run: main 0: (((1 integer)) <- ((copy)) ((1 literal))) run: main 0: 1 => ((1 integer)) mem: ((1 integer)): 1 <= 1 run: main 1: (((2 integer)) <- ((copy)) ((3 literal))) run: main 1: 3 => ((2 integer)) mem: ((2 integer)): 2 <= 3 run: main 2: (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) mem: ((1 integer)) => 1 mem: ((2 integer)) => 3 run: main 2: 4 => ((3 integer)) mem: ((3 integer)): 3 <= 4 schedule: done with routine") (s:stream-address <- init-stream x:string-address) (1:instruction-trace-address-array-address/raw <- parse-traces s:stream-address) (2:terminal-address/raw <- init-fake-terminal 70:literal 15:literal) ; position the cursor away from top of screen (cursor-down 2:terminal-address/raw) (cursor-down 2:terminal-address/raw) (3:space-address/raw <- browser-state 1:instruction-trace-address-array-address/raw 30:literal/screen-height) ; draw trace (print-traces-collapsed 3:space-address/raw/browser-state 2:terminal-address/raw 1:instruction-trace-address-array-address/raw) ; expand penultimate line (s:string-address <- new "kk\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "- main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " " mem : ((1 integer)) => 1 " " mem : ((2 integer)) => 3 " "+ main/ 2 : 4 => ((3 integer)) ")) (prn "F - process-key: expanding a line continues to print lines after it")) (reset2) (new-trace "process-key-expanded") (run-code main (default-space:space-address <- new space:literal 30:literal/capacity) (x:string-address <- new "schedule: main run: main 0: (((1 integer)) <- ((copy)) ((1 literal))) run: main 0: 1 => ((1 integer)) mem: ((1 integer)): 1 <= 1 mem: ((1 integer)): 1 <= 1 run: main 1: (((2 integer)) <- ((copy)) ((3 literal))) run: main 1: 3 => ((2 integer)) mem: ((2 integer)): 2 <= 3 run: main 2: (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) mem: ((1 integer)) => 1 mem: ((2 integer)) => 3 run: main 2: 4 => ((3 integer)) mem: ((3 integer)): 3 <= 4 schedule: done with routine") (s:stream-address <- init-stream x:string-address) (1:instruction-trace-address-array-address/raw <- parse-traces s:stream-address) (2:terminal-address/raw <- init-fake-terminal 70:literal 15:literal) ; position the cursor away from top of screen (cursor-down 2:terminal-address/raw) (cursor-down 2:terminal-address/raw) (3:space-address/raw <- browser-state 1:instruction-trace-address-array-address/raw 30:literal/screen-height) ; draw trace (print-traces-collapsed 3:space-address/raw/browser-state 2:terminal-address/raw 1:instruction-trace-address-array-address/raw) ; expand penultimate line, then move one line down and draw cursor (s:string-address <- new "kk\nj") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (replace-character 2:terminal-address/raw ((#\ literal))) (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) ; cursor should be at next top-level 'run' line (when (~screen-contains memory.4 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "- main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " " mem : ((1 integer)) => 1 " " mem : ((2 integer)) => 3 " " main/ 2 : 4 => ((3 integer)) ")) (prn "F - process-key: navigation moves between top-level trace indices only")) (run-code main2 (default-space:space-address <- new space:literal 30:literal/capacity) ; reset previous cursor (replace-character 2:terminal-address/raw ((#\+ literal))) ; move cursor back up one line (s:string-address <- new "k") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ; show cursor (replace-character 2:terminal-address/raw ((#\* literal))) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) ; cursor should be back at the top of the expanded line (when (~screen-contains memory.4 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " " main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " " mem : ((1 integer)) => 1 " " mem : ((2 integer)) => 3 " "+ main/ 2 : 4 => ((3 integer)) ")) (prn "F - process-key: navigation moves between top-level indices only - 2")) (run-code main3 (default-space:space-address <- new space:literal 30:literal/capacity) ; reset previous cursor (replace-character 2:terminal-address/raw ((#\+ literal))) ; press enter (s:string-address <- new "\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) ; expanded trace should now be collapsed (when (~screen-contains memory.4 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " "+ main/ 2 : 4 => ((3 integer)) " " " " ")) (prn "F - process-key: process-key collapses trace indices correctly after moving around")) (run-code main4 (default-space:space-address <- new space:literal 30:literal/capacity) ; move up a few lines, expand, then move down and expand again (s:string-address <- new "kkk\njjj\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ;? (replace-character 2:terminal-address/raw ((#\ literal))) ;? 1 (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) ; first expand should have no effect (when (~screen-contains memory.4 70 (+ " " " " "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal))) " "+ main/ 0 : 1 => ((1 integer)) " "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal))) " "+ main/ 1 : 3 => ((2 integer)) " "- main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer))) " " mem : ((1 integer)) => 1 " " mem : ((2 integer)) => 3 " "+ main/ 2 : 4 => ((3 integer)) ")) (prn "F - process-key: process-key collapses the previously expanded trace index when expanding elsewhere")) ;; manage screen height (reset2) (new-trace "trace-paginate") (run-code main (default-space:space-address <- new space:literal 30:literal/capacity) (x:string-address <- new "run: main 0: a b c mem: 0 a run: main 1: d e f mem: 1 a mem: 1 b mem: 1 c mem: 1 d mem: 1 e run: main 2: g hi run: main 3: j mem: 3 a run: main 4: k run: main 5: l run: main 6: m run: main 7: n") (s:stream-address <- init-stream x:string-address) (traces:instruction-trace-address-array-address <- parse-traces s:stream-address) (2:terminal-address/raw <- init-fake-terminal 17:literal 15:literal) (3:space-address/raw/browser-state <- browser-state traces:instruction-trace-address-array-address 3:literal/screen-height) (print-traces-collapsed 3:space-address/raw/browser-state 2:terminal-address/raw) (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) ; screen shows a subset of collapsed trace lines (when (~screen-contains memory.4 17 (+ "+ main/ 0 : a b c" "+ main/ 1 : d e f" "+ main/ 2 : g hi ")) (prn "F - print-traces-collapsed can show just one 'page' of a larger trace")) ; expand top line (run-code main2 (default-space:space-address <- new space:literal 30:literal/capacity) (s:string-address <- new "kkk\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) ; screen shows just first trace line fully expanded (when (~screen-contains memory.4 17 (+ "- main/ 0 : a b c" " mem : 0 a " "+ main/ 1 : d e f" " ")) (prn "F - expanding doesn't print past end of page")) (run-code main2-2 (replace-character 2:terminal-address/raw ((#\ literal))) ) ; screen shows part of the second trace line expanded (when (~screen-contains memory.4 17 (+ " main/ 0 : a b c" " mem : 0 a " "+ main/ 1 : d e f" " ")) (prn "F - cursor at right place after expand")) ; expand line below without first collapsing previously expanded line (run-code main3 (default-space:space-address <- new space:literal 30:literal/capacity) ; reset previous cursor (replace-character 2:terminal-address/raw ((#\- literal))) (s:string-address <- new "j\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) ; screen shows part of the second trace line expanded (when (~screen-contains memory.4 17 (+ "+ main/ 0 : a b c" "- main/ 1 : d e f" " mem : 1 a " " " " ")) (prn "F - expanding below expanded line respects screen/page height")) (run-code main3-2 (replace-character 2:terminal-address/raw ((#\ literal))) ) ; screen shows part of the second trace line expanded (when (~screen-contains memory.4 17 (+ "+ main/ 0 : a b c" " main/ 1 : d e f" " mem : 1 a " " " " ")) (prn "F - cursor at right place after expand below")) ; expand line above without first collapsing previously expanded line (run-code main4 (default-space:space-address <- new space:literal 30:literal/capacity) ; reset previous cursor (replace-character 2:terminal-address/raw ((#\- literal))) (s:string-address <- new "k\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) ; screen again shows first trace line expanded (when (~screen-contains memory.4 17 (+ "- main/ 0 : a b c" " mem : 0 a " "+ main/ 1 : d e f" " ")) (prn "F - expanding above expanded line respects screen/page height")) ;? (quit) ;? 1 ; collapse everything and hit page-down ; again, we can't yet check for special keys like 'page-down so we'll use ; upper-case J and K for moving a page down or up, respectively. (run-code main5 (default-space:space-address <- new space:literal 30:literal/capacity) (s:string-address <- new "\nJ") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) ; screen shows second page of traces (when (~screen-contains memory.4 17 (+ "+ main/ 3 : j " "+ main/ 4 : k " "+ main/ 5 : l " " ")) (prn "F - 'page-down' skips to next page after this one")) ;? (quit) ;? 1 ; move cursor down, then page-down (run-code main6 (default-space:space-address <- new space:literal 30:literal/capacity) (s:string-address <- new "jJ") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) ; page-down behaves the same regardless of where the cursor was (when (~screen-contains memory.4 17 (+ "+ main/ 6 : m " "+ main/ 7 : n " " ")) (prn "F - 'page-down' skips to same place regardless of cursor position")) ; try to page-down past end of trace (run-code main7 (default-space:space-address <- new space:literal 30:literal/capacity) (s:string-address <- new "J") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) ; no change (when (~screen-contains memory.4 17 (+ "+ main/ 6 : m " "+ main/ 7 : n " " ")) (prn "F - 'page-down' skips to same place regardless of cursor position")) ; now page-up (run-code main8 (default-space:space-address <- new space:literal 30:literal/capacity) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) ; precisely undoes previous page-down (when (~screen-contains memory.4 17 (+ "+ main/ 3 : j " "+ main/ 4 : k " "+ main/ 5 : l " " ")) (prn "F - 'page-up' on partial page behaves as if page was full")) ;; back to page 1, expand a line (run-code main9 (default-space:space-address <- new space:literal 30:literal/capacity) (s:string-address <- new "Kkk\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ;? (print-character 2:terminal-address/raw ((#\ literal))) ;? 1 (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) ; now we have an expanded line (when (~screen-contains memory.4 17 (+ "+ main/ 0 : a b c" "- main/ 1 : d e f" " mem : 1 a " " " " ")) (prn "F - intermediate state after expanding a line")) ; next page (run-code main10 (default-space:space-address <- new space:literal 30:literal/capacity) (s:string-address <- new "J") (k:keyboard-address <- init-keyboard s:string-address) ;? ($start-tracing) ;? 1 (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) ; no lines skipped, page with just inner traces (when (~screen-contains memory.4 17 (+ " mem : 1 b " " mem : 1 c " " mem : 1 d " " " " ")) (prn "F - page down continues existing expanded line")) ; next page (run-code main11 (default-space:space-address <- new space:literal 30:literal/capacity) (s:string-address <- new "J") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) ; page with partial inner trace and more collapsed (when (~screen-contains memory.4 17 (+ " mem : 1 e " "+ main/ 2 : g hi " "+ main/ 3 : j " " " " ")) (prn "F - page down shows collapsed lines after continued expanded line at top of page")) ;? (quit) ;? 1 ; page-up through an expanded line (run-code main12 (default-space:space-address <- new space:literal 30:literal/capacity) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ " mem : 1 b " " mem : 1 c " " mem : 1 d " " " " ")) (prn "F - page up understands expanded lines")) ;; page up scenarios ; skip ones starting at top of trace for now ; page-up scenario 2 ; + run: main 0: a b c ; mem: 0 a ; + run: main 1: d e f <- top of page ; mem: 1 a ; mem: 1 b ; mem: 1 c ; mem: 1 d ; mem: 1 e ; + run: main 2: g hi ; + run: main 3: j <- bottom of page ; mem: 3 a ; + run: main 4: k ; + run: main 5: l ; + run: main 6: m ; + run: main 7: n (run-code main13 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) ;? ($print first-index-on-page:integer/space:1) ;? 1 ;? ($print (("\n" literal))) ;? 1 (first-index-on-page:integer/space:1 <- copy 1:literal) ;? ($print first-index-on-page:integer/space:1) ;? 1 ;? ($print (("\n" literal))) ;? 1 (first-subindex-on-page:integer/space:1 <- copy -2:literal) (last-index-on-page:integer/space:1 <- copy 3:literal) (last-subindex-on-page:integer/space:1 <- copy -2:literal) (expanded-index:integer/space:1 <- copy -1:literal) (expanded-children:integer/space:1 <- copy -1:literal) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 0 : a b c" "+ main/ 1 : d e f" "+ main/ 2 : g hi ")) (prn "F - page-up 2")) ; page-up scenario 3 ; + run: main 0: a b c ; mem: 0 a ; - run: main 1: d e f <- top of page ; mem: 1 a ; mem: 1 b <- bottom of page ; mem: 1 c ; mem: 1 d ; mem: 1 e ; + run: main 2: g hi ; + run: main 3: j ; mem: 3 a ; + run: main 4: k ; + run: main 5: l ; + run: main 6: m ; + run: main 7: n (run-code main14pre (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 1:literal) (first-subindex-on-page:integer/space:1 <- copy -1:literal) (last-index-on-page:integer/space:1 <- copy 1:literal) (last-subindex-on-page:integer/space:1 <- copy 1:literal) (expanded-index:integer/space:1 <- copy 1:literal) (expanded-children:integer/space:1 <- copy 5:literal) (to-top 0:space-address/browser-state 2:terminal-address/raw) (print-page 0:space-address/browser-state 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "- main/ 1 : d e f" " mem : 1 a " " mem : 1 b " " " " ")) (prn "F - page-up 3: initial print-page state")) (run-code main14post (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 0:literal) (first-subindex-on-page:integer/space:1 <- copy -2:literal) (last-index-on-page:integer/space:1 <- copy 1:literal) (last-subindex-on-page:integer/space:1 <- copy 0:literal) (expanded-index:integer/space:1 <- copy 1:literal) (expanded-children:integer/space:1 <- copy 5:literal) (to-top 0:space-address/browser-state 2:terminal-address/raw) (print-page 0:space-address/browser-state 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 0 : a b c" "- main/ 1 : d e f" " mem : 1 a " " " " ")) (prn "F - page-up 3: expected post page-up state")) ;? (quit) ;? 1 (run-code main14 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 1:literal) (first-subindex-on-page:integer/space:1 <- copy -1:literal) (last-index-on-page:integer/space:1 <- copy 1:literal) (last-subindex-on-page:integer/space:1 <- copy 1:literal) (expanded-index:integer/space:1 <- copy 1:literal) (expanded-children:integer/space:1 <- copy 5:literal) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) ;? ($start-tracing) ;? 1 (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 0 : a b c" "- main/ 1 : d e f" " mem : 1 a " " " " ")) (prn "F - page-up 3")) ;? (quit) ;? 1 ; page-up scenario 4 ; + run: main 0: a b c ; mem: 0 a ; - run: main 1: d e f ; mem: 1 a ; mem: 1 b ; mem: 1 c <- top of page ; mem: 1 d ; mem: 1 e <- bottom of page ; + run: main 2: g hi ; + run: main 3: j ; mem: 3 a ; + run: main 4: k ; + run: main 5: l ; + run: main 6: m ; + run: main 7: n (run-code main15 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 1:literal) (first-subindex-on-page:integer/space:1 <- copy 2:literal) (last-index-on-page:integer/space:1 <- copy 1:literal) (last-subindex-on-page:integer/space:1 <- copy 4:literal) (expanded-index:integer/space:1 <- copy 1:literal) (expanded-children:integer/space:1 <- copy 5:literal) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "- main/ 1 : d e f" " mem : 1 a " " mem : 1 b " " " " ")) (prn "F - page-up 4")) ; page-up scenario 5 ; + run: main 0: a b c ; mem: 0 a ; - run: main 1: d e f ; mem: 1 a <- top of page ; mem: 1 b ; mem: 1 c <- bottom of page ; mem: 1 d ; mem: 1 e ; + run: main 2: g hi ; + run: main 3: j ; mem: 3 a ; + run: main 4: k ; + run: main 5: l ; + run: main 6: m ; + run: main 7: n (run-code main16pre (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 1:literal) (first-subindex-on-page:integer/space:1 <- copy 0:literal) (last-index-on-page:integer/space:1 <- copy 1:literal) (last-subindex-on-page:integer/space:1 <- copy 2:literal) (expanded-index:integer/space:1 <- copy 1:literal) (expanded-children:integer/space:1 <- copy 5:literal) ;? ($print cursor-row:integer/space:1) ;? 1 (to-top 0:space-address/browser-state 2:terminal-address/raw) ;? ($print cursor-row:integer/space:1) ;? 1 (print-page 0:space-address/browser-state 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ " mem : 1 a " " mem : 1 b " " mem : 1 c " " " " ")) (prn "F - page-up 5: initial print-page state")) (run-code main16 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 1:literal) (first-subindex-on-page:integer/space:1 <- copy 0:literal) (last-index-on-page:integer/space:1 <- copy 1:literal) (last-subindex-on-page:integer/space:1 <- copy 2:literal) (expanded-index:integer/space:1 <- copy 1:literal) (expanded-children:integer/space:1 <- copy 5:literal) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) ;? ($dump-browser-state 3:space-address/raw/browser-state) ;? 1 (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 0 : a b c" "- main/ 1 : d e f" " mem : 1 a " " " " ")) (prn "F - page-up 5")) ; page-up scenario 6 ; + run: main 0: a b c ; mem: 0 a ; - run: main 1: d e f ; mem: 1 a ; mem: 1 b <- top of page ; mem: 1 c ; mem: 1 d <- bottom of page ; mem: 1 e ; + run: main 2: g hi ; + run: main 3: j ; mem: 3 a ; + run: main 4: k ; + run: main 5: l ; + run: main 6: m ; + run: main 7: n (run-code main17 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 1:literal) (first-subindex-on-page:integer/space:1 <- copy 1:literal) (last-index-on-page:integer/space:1 <- copy 1:literal) (last-subindex-on-page:integer/space:1 <- copy 3:literal) (expanded-index:integer/space:1 <- copy 1:literal) (expanded-children:integer/space:1 <- copy 5:literal) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 0 : a b c" "- main/ 1 : d e f" " mem : 1 a " " " " ")) (prn "F - page-up 6")) ; page-up scenario 7 ; + run: main 0: a b c ; mem: 0 a ; + run: main 1: d e f <- top of page ; mem: 1 a ; mem: 1 b ; mem: 1 c ; mem: 1 d ; mem: 1 e ; + run: main 2: g hi ; - run: main 3: j <- bottom of page ; mem: 3 a ; + run: main 4: k ; + run: main 5: l ; + run: main 6: m ; + run: main 7: n (run-code main18 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 1:literal) (first-subindex-on-page:integer/space:1 <- copy -2:literal) (last-index-on-page:integer/space:1 <- copy 3:literal) (last-subindex-on-page:integer/space:1 <- copy -1:literal) (expanded-index:integer/space:1 <- copy 3:literal) (expanded-children:integer/space:1 <- copy 1:literal) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 0 : a b c" "+ main/ 1 : d e f" "+ main/ 2 : g hi " " ")) (prn "F - page-up 7 - expanded index starts below bottom")) ;? (quit) ;? 1 ; page-up scenario 8 ; + run: main 0: a b c ; mem: 0 a ; + run: main 1: d e f <- top of page ; mem: 1 a ; mem: 1 b ; mem: 1 c ; mem: 1 d ; mem: 1 e ; + run: main 2: g hi ; + run: main 3: j <- bottom of page ; mem: 3 a ; - run: main 4: k ; + run: main 5: l ; + run: main 6: m ; + run: main 7: n (run-code main19 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 1:literal) (first-subindex-on-page:integer/space:1 <- copy -2:literal) (last-index-on-page:integer/space:1 <- copy 3:literal) (last-subindex-on-page:integer/space:1 <- copy -1:literal) (expanded-index:integer/space:1 <- copy 4:literal) (expanded-children:integer/space:1 <- copy 0:literal) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 0 : a b c" "+ main/ 1 : d e f" "+ main/ 2 : g hi " " ")) (prn "F - page-up 8 - expanded index starts below top - 2")) ; page-up scenario 9 ; - run: main 0: a b c ; mem: 0 a ; + run: main 1: d e f ; mem: 1 a ; mem: 1 b ; mem: 1 c ; mem: 1 d ; mem: 1 e ; + run: main 2: g hi ; + run: main 3: j <- top of page ; mem: 3 a ; + run: main 4: k ; + run: main 5: l <- bottom of page ; + run: main 6: m ; + run: main 7: n (run-code main20 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 3:literal) (first-subindex-on-page:integer/space:1 <- copy -2:literal) (last-index-on-page:integer/space:1 <- copy 5:literal) (last-subindex-on-page:integer/space:1 <- copy -2:literal) (expanded-index:integer/space:1 <- copy 0:literal) (expanded-children:integer/space:1 <- copy 1:literal) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ " mem : 0 a " "+ main/ 1 : d e f" "+ main/ 2 : g hi " " ")) (prn "F - page-up 9 - expanded index overlaps target page")) ; page-up scenario 10 ; - run: main 0: a b c ; mem: 0 a ; + run: main 1: d e f ; mem: 1 a ; mem: 1 b ; mem: 1 c ; mem: 1 d ; mem: 1 e ; + run: main 2: g hi <- top of page ; + run: main 3: j ; mem: 3 a ; + run: main 4: k <- bottom of page ; + run: main 5: l ; + run: main 6: m ; + run: main 7: n (run-code main21pre (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 2:literal) (first-subindex-on-page:integer/space:1 <- copy -2:literal) (last-index-on-page:integer/space:1 <- copy 4:literal) (last-subindex-on-page:integer/space:1 <- copy -2:literal) (expanded-index:integer/space:1 <- copy 0:literal) (expanded-children:integer/space:1 <- copy 1:literal) (to-top 0:space-address/browser-state 2:terminal-address/raw) ;? ($start-tracing) ;? 2 (print-page 0:space-address/browser-state 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 2 : g hi " "+ main/ 3 : j " "+ main/ 4 : k " " " " ")) (prn "F - page-up 10: initial print-page state")) ;? (quit) ;? 1 (run-code main21 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 2:literal) (first-subindex-on-page:integer/space:1 <- copy -2:literal) (last-index-on-page:integer/space:1 <- copy 4:literal) (last-subindex-on-page:integer/space:1 <- copy -2:literal) (expanded-index:integer/space:1 <- copy 0:literal) (expanded-children:integer/space:1 <- copy 1:literal) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "- main/ 0 : a b c" " mem : 0 a " "+ main/ 1 : d e f" " " " ")) (prn "F - page-up 10 - expanded index overlaps target page - 2")) ;? (quit) ;? 2 (reset2) (new-trace "trace-paginate2") ; page-up scenario 11 ; + run: main 0: a b c ; mem: 0 a ; + run: main 1: d e f ; - run: main 2: g hi ; mem: 2 a ; + run: main 3: j <- top of page ; mem: 3 a ; + run: main 4: k ; + run: main 5: l <- bottom of page ; + run: main 6: m ; + run: main 7: n (run-code main22 (default-space:space-address <- new space:literal 30:literal/capacity) (x:string-address <- new "run: main 0: a b c mem: 0 a run: main 1: d e f run: main 2: g hi mem: 2 a run: main 3: j mem: 3 a run: main 4: k run: main 5: l run: main 6: m run: main 7: n") (s:stream-address <- init-stream x:string-address) (traces:instruction-trace-address-array-address <- parse-traces s:stream-address) (2:terminal-address/raw <- init-fake-terminal 17:literal 15:literal) (3:space-address/raw/browser-state <- browser-state traces:instruction-trace-address-array-address 3:literal/screen-height) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset) (first-index-on-page:integer/space:1 <- copy 3:literal) (first-subindex-on-page:integer/space:1 <- copy -2:literal) (last-index-on-page:integer/space:1 <- copy 5:literal) (last-subindex-on-page:integer/space:1 <- copy -2:literal) (expanded-index:integer/space:1 <- copy 2:literal) (expanded-children:integer/space:1 <- copy 1:literal) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 1 : d e f" "- main/ 2 : g hi " " mem : 2 a " " " " ")) (prn "F - page-up 11 - expanded index overlaps target page - 3")) ; page-up scenario 12 ; + run: main 0: a b c ; mem: 0 a ; + run: main 1: d e f ; - run: main 2: g hi ; mem: 2 a ; + run: main 3: j ; mem: 3 a ; + run: main 4: k <- top of page ; + run: main 5: l ; + run: main 6: m <- bottom of page ; + run: main 7: n (run-code main23 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 4:literal) (first-subindex-on-page:integer/space:1 <- copy -2:literal) (last-index-on-page:integer/space:1 <- copy 6:literal) (last-subindex-on-page:integer/space:1 <- copy -2:literal) (expanded-index:integer/space:1 <- copy 2:literal) (expanded-children:integer/space:1 <- copy 1:literal) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "- main/ 2 : g hi " " mem : 2 a " "+ main/ 3 : j " " ")) (prn "F - page-up 12 - expanded index overlaps target page - 4")) ; page-up scenario 13 ; + run: main 0: a b c ; mem: 0 a ; + run: main 1: d e f ; - run: main 2: g hi ; mem: 2 a ; + run: main 3: j ; mem: 3 a ; + run: main 4: k ; + run: main 5: l ; + run: main 6: m <- top of page ; + run: main 7: n <- bottom of page (run-code main24 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 6:literal) (first-subindex-on-page:integer/space:1 <- copy -2:literal) (last-index-on-page:integer/space:1 <- copy 7:literal) (last-subindex-on-page:integer/space:1 <- copy -2:literal) (expanded-index:integer/space:1 <- copy 2:literal) (expanded-children:integer/space:1 <- copy 1:literal) (s:string-address <- new "K") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 3 : j " "+ main/ 4 : k " "+ main/ 5 : l " " ")) (prn "F - page-up 13 - expanded index far above target page")) (run-code main25 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (s:string-address <- new "kk\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 3 : j " "- main/ 4 : k " "+ main/ 5 : l " " ")) (prn "F - process-key expands a trace index on any page")) (run-code main26 (replace-character 2:terminal-address/raw ((#\ literal))) ) (when (~screen-contains memory.4 17 (+ "+ main/ 3 : j " " main/ 4 : k " "+ main/ 5 : l " " ")) (prn "F - process-key resets the cursor after expand")) ;? (quit) ;? 1 (run-code main27 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) ; reset previous cursor (replace-character 2:terminal-address/raw ((#\- literal))) (s:string-address <- new "j\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 3 : j " "+ main/ 4 : k " "- main/ 5 : l " " ")) (prn "F - process-key expands a trace index on any page when there's an expanded trace index above it on the same page")) ; expand scenario ; + run: main 0: a b c ; mem: 0 a ; + run: main 1: d e f ; - run: main 2: g hi ; mem: 2 a <- top of page ; + run: main 3: j ; mem: 3 a ; + run: main 4: k <- bottom of page ; + run: main 5: l ; + run: main 6: m ; + run: main 7: n (run-code main28 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 2:literal) (first-subindex-on-page:integer/space:1 <- copy 0:literal) (last-index-on-page:integer/space:1 <- copy 4:literal) (last-subindex-on-page:integer/space:1 <- copy -2:literal) (expanded-index:integer/space:1 <- copy 2:literal) (expanded-children:integer/space:1 <- copy 1:literal) (to-top 0:space-address/browser-state 2:terminal-address/raw) (print-page 0:space-address/browser-state 2:terminal-address/raw) (s:string-address <- new "kk\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ;? (replace-character 2:terminal-address/raw ((#\ literal))) ;? 2 ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 ;? (+ " mem : 2 a " ; after print-page ;? "+ main/ 3 : j " ;? "+ main/ 4 : k " ;? " ")) (+ "+ main/ 2 : g hi " "- main/ 3 : j " " mem : 3 a " " ")) ;? (+ "- main/ 3 : j " ; alternative interpretation in case the above isn't intuitive ;? " mem : 3 a " ;? (+ "- main/ 4 : k " ;? " ")) (prn "F - process-key expands trace index on a page that starts with a partial expanded trace")) (reset2) (new-trace "trace-paginate3") ; expand scenario ; + run: main 0: a b c ; mem: 0 a ; + run: main 1: d e f ; mem: 1 a ; mem: 1 b <- top of page ; mem: 1 c ; + run: main 2: g hi <- bottom of page ; mem: 2 a ; + run: main 3: j ; + run: main 4: k ; + run: main 5: l (run-code main29 (default-space:space-address <- new space:literal 30:literal/capacity) (x:string-address <- new "run: main 0: a b c mem: 0 a run: main 1: d e f mem: 1 a mem: 1 b mem: 1 c run: main 2: g hi mem: 2 a run: main 3: j run: main 4: k run: main 5: l") (s:stream-address <- init-stream x:string-address) (traces:instruction-trace-address-array-address <- parse-traces s:stream-address) (2:terminal-address/raw <- init-fake-terminal 17:literal 15:literal) (3:space-address/raw/browser-state <- browser-state traces:instruction-trace-address-array-address 3:literal/screen-height) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset) (first-index-on-page:integer/space:1 <- copy 1:literal) (first-subindex-on-page:integer/space:1 <- copy 1:literal) (last-index-on-page:integer/space:1 <- copy 3:literal) (last-subindex-on-page:integer/space:1 <- copy -2:literal) (expanded-index:integer/space:1 <- copy 1:literal) (expanded-children:integer/space:1 <- copy 3:literal) (to-top 0:space-address/browser-state 2:terminal-address/raw) (print-page 0:space-address/browser-state 2:terminal-address/raw) ;? (replace-character 2:terminal-address/raw ((#\ literal))) ;? 1 (s:string-address <- new "k\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 ;? (+ " mem : 1 b " ; after print-page ;? " mem : 1 c " ;? "+ main/ 2 : g hi " ;? " " ;? " ")) (+ "+ main/ 1 : d e f" "- main/ 2 : g hi " " mem : 2 a " " " " ")) (prn "F - process-key expands trace index on a page that starts with a partial expanded trace - 2")) ; expand scenario ; + run: main 0: a b c ; mem: 0 a ; + run: main 1: d e f ; mem: 1 a <- top of page ; mem: 1 b ; mem: 1 c <- bottom of page ; + run: main 2: g hi ; mem: 2 a ; + run: main 3: j ; + run: main 4: k ; + run: main 5: l (run-code main30 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) (first-index-on-page:integer/space:1 <- copy 1:literal) (first-subindex-on-page:integer/space:1 <- copy 0:literal) (last-index-on-page:integer/space:1 <- copy 1:literal) (last-subindex-on-page:integer/space:1 <- copy 2:literal) (expanded-index:integer/space:1 <- copy 1:literal) (expanded-children:integer/space:1 <- copy 3:literal) (to-top 0:space-address/browser-state 2:terminal-address/raw) (print-page 0:space-address/browser-state 2:terminal-address/raw) (s:string-address <- new "k\n") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ;? (replace-character 2:terminal-address/raw ((#\* literal))) ;? 1 ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 ;? (+ " mem : 1 a " ; after print-page ;? " mem : 1 b " ;? " mem : 1 c " ;? " ")) (+ "+ main/ 1 : d e f" "+ main/ 2 : g hi " "+ main/ 3 : j ")) (prn "F - process-key expands trace index on a page with only subindex lines")) (run-code main31 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) ; reinitialize (first-index-on-page:integer/space:1 <- copy 0:literal) (first-subindex-on-page:integer/space:1 <- copy -2:literal) (last-index-on-page:integer/space:1 <- copy 2:literal) (last-subindex-on-page:integer/space:1 <- copy -2:literal) (expanded-index:integer/space:1 <- copy -1:literal) (expanded-children:integer/space:1 <- copy -1:literal) (to-top 0:space-address/browser-state 2:terminal-address/raw) (print-page 0:space-address/browser-state 2:terminal-address/raw) ;? (replace-character 2:terminal-address/raw ((#\* literal))) ;? 1 (s:string-address <- new "Jjj\n") (k:keyboard-address <- init-keyboard s:string-address) ;? ($print (("test: first subindex " literal))) ;? 1 ;? ($print first-subindex-on-page:integer/space:1) ;? 1 ;? ($print (("\n" literal))) ;? 1 (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ;? ($print (("test: first subindex 2 " literal))) ;? 1 ;? ($print first-subindex-on-page:integer/space:1) ;? 1 ;? ($print (("\n" literal))) ;? 1 (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ;? ($print (("test: first subindex 3 " literal))) ;? 1 ;? ($print first-subindex-on-page:integer/space:1) ;? 1 ;? ($print (("\n" literal))) ;? 1 (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ;? ($print (("test: first subindex 4 " literal))) ;? 1 ;? ($print first-subindex-on-page:integer/space:1) ;? 1 ;? ($print (("\n" literal))) ;? 1 (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) (when (~screen-contains memory.4 17 (+ "+ main/ 3 : j " "+ main/ 4 : k " "- main/ 5 : l " " " " ")) (prn "F - process-key expands final index of trace at bottom of page")) (run-code main32 (default-space:space-address <- new space:literal 30:literal/capacity) (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state) ; reinitialize (first-index-on-page:integer/space:1 <- copy 0:literal) (first-subindex-on-page:integer/space:1 <- copy -2:literal) (last-index-on-page:integer/space:1 <- copy 2:literal) (last-subindex-on-page:integer/space:1 <- copy -2:literal) (expanded-index:integer/space:1 <- copy -1:literal) (expanded-children:integer/space:1 <- copy -1:literal) (to-top 0:space-address/browser-state 2:terminal-address/raw) (print-page 0:space-address/browser-state 2:terminal-address/raw) ;? (replace-character 2:terminal-address/raw ((#\ literal))) ;? 1 (s:string-address <- new "kk\nJjj") (k:keyboard-address <- init-keyboard s:string-address) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw) (5:integer-address/raw <- get-address 2:terminal-address/raw/deref cursor-row:offset) ) (each routine completed-routines* (awhen rep.routine!error (prn "error - " it))) ;? (prn (memory* memory.5)) ;? 1 (when (~is 3 (memory memory*.5)) (prn "F - key movement stays within screen bounds, even when no next trace on page")) (reset2) ;? (print-times) ;? 3

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(selective-load "mu.arc" section-level)
(test-only-settings)
(add-code:readfile "trace.mu")
(ero "running tests in trace.arc.t (takes ~10 mins)")
(freeze function*)
(load-system-functions)

(reset2)
(new-trace "print-trace")
(run-code main
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (x:string-address <- new
"schedule: main
run: main 0: (((1 integer)) <- ((copy)) ((1 literal)))
run: main 0: 1 => ((1 integer))
mem: ((1 integer)): 1 <= 1
run: main 1: (((2 integer)) <- ((copy)) ((3 literal)))
run: main 1: 3 => ((2 integer))
mem: ((2 integer)): 2 <= 3
run: main 2: (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))
mem: ((1 integer)) => 1
mem: ((2 integer)) => 3
run: main 2: 4 => ((3 integer))
mem: ((3 integer)): 3 <= 4
schedule:  done with routine")
  (s:stream-address <- init-stream x:string-address)
  (traces:instruction-trace-address-array-address <- parse-traces s:stream-address)
  (screen:terminal-address <- init-fake-terminal 70:literal 15:literal)
  (browser-state:space-address <- browser-state traces:instruction-trace-address-array-address 30:literal/screen-height)
  (print-traces-collapsed browser-state:space-address screen:terminal-address)
  (1:string-address/raw <- get screen:terminal-address/deref data:offset)
)
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
;? (prn memory*.1)
(when (~screen-contains memory*.1 70
         (+ "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "+ main/ 2 : 4 => ((3 integer))                                        "))
  (prn "F - print-traces-collapsed works"))
;? (quit) ;? 1

(reset2)
(new-trace "print-trace-from-middle-of-screen")
(run-code main
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (x:string-address <- new
"schedule: main
run: main 0: (((1 integer)) <- ((copy)) ((1 literal)))
run: main 0: 1 => ((1 integer))
mem: ((1 integer)): 1 <= 1
run: main 1: (((2 integer)) <- ((copy)) ((3 literal)))
run: main 1: 3 => ((2 integer))
mem: ((2 integer)): 2 <= 3
run: main 2: (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))
mem: ((1 integer)) => 1
mem: ((2 integer)) => 3
run: main 2: 4 => ((3 integer))
mem: ((3 integer)): 3 <= 4
schedule:  done with routine")
  (s:stream-address <- init-stream x:string-address)
  (traces:instruction-trace-address-array-address <- parse-traces s:stream-address)
  (1:terminal-address/raw <- init-fake-terminal 70:literal 15:literal)
  ; position the cursor away from top of screen
  (cursor-down 1:terminal-address/raw)
  (cursor-down 1:terminal-address/raw)
  (browser-state:space-address <- browser-state traces:instruction-trace-address-array-address 30:literal/screen-height)
  (print-traces-collapsed browser-state:space-address 1:terminal-address/raw traces:instruction-trace-address-array-address)
  (2:string-address/raw <- get 1:terminal-address/raw/deref data:offset)
)
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.2 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "+ main/ 2 : 4 => ((3 integer))                                        "))
  (prn "F - print-traces-collapsed works anywhere on the screen"))
(run-code main2
  (print-character 1:terminal-address/raw ((#\* literal))))
(when (~screen-contains memory*.2 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "+ main/ 2 : 4 => ((3 integer))                                        "
            "*                                                                     "))
  (prn "F - print-traces-collapsed leaves cursor at next line"))

(reset2)
(new-trace "process-key-move-up-down")
(run-code main
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (x:string-address <- new
"schedule: main
run: main 0: (((1 integer)) <- ((copy)) ((1 literal)))
run: main 0: 1 => ((1 integer))
mem: ((1 integer)): 1 <= 1
run: main 1: (((2 integer)) <- ((copy)) ((3 literal)))
run: main 1: 3 => ((2 integer))
mem: ((2 integer)): 2 <= 3
run: main 2: (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))
mem: ((1 integer)) => 1
mem: ((2 integer)) => 3
run: main 2: 4 => ((3 integer))
mem: ((3 integer)): 3 <= 4
schedule:  done with routine")
  (s:stream-address <- init-stream x:string-address)
  (1:instruction-trace-address-array-address/raw <- parse-traces s:stream-address)
  (2:terminal-address/raw <- init-fake-terminal 70:literal 15:literal)
  ; position the cursor away from top of screen
  (cursor-down 2:terminal-address/raw)
  (cursor-down 2:terminal-address/raw)
  (3:space-address/raw <- browser-state 1:instruction-trace-address-array-address/raw 30:literal/screen-height)
  ; draw trace
  (print-traces-collapsed 3:space-address/raw/browser-state 2:terminal-address/raw 1:instruction-trace-address-array-address/raw)
  ; move cursor up
  ; we have no way yet to test special keys like up-arrow
  (s:string-address <- new "k")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  ; draw cursor
  (replace-character 2:terminal-address/raw ((#\* literal)))
  (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset)
)
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "* main/ 2 : 4 => ((3 integer))                                        "))
            ;^cursor
  (prn "F - process-key can move up the cursor"))
(run-code main2
  (default-space:space-address <- new space:literal 30:literal/capacity)
  ; reset previous cursor
  (replace-character 2:terminal-address/raw ((#\+ literal)))
  ; move cursor up 3 more lines
  (s:string-address <- new "kkk")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (replace-character 2:terminal-address/raw ((#\* literal)))
  )
; cursor is now at line 3
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "* main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            ;^cursor
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "+ main/ 2 : 4 => ((3 integer))                                        "))
  (prn "F - process-key can move up multiple times"))
; try to move cursor up thrice more
(run-code main3
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (replace-character 2:terminal-address/raw ((#\+ literal)))
  (s:string-address <- new "kkk")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (replace-character 2:terminal-address/raw ((#\* literal)))
  )
; cursor doesn't go beyond the first line printed
; stuff on screen before browser-state was initialized is inviolate
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "* main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            ;^cursor
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "+ main/ 2 : 4 => ((3 integer))                                        "))
  (prn "F - process-key doesn't move above bounds"))
; now move cursor down 4 times
(run-code main4
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (replace-character 2:terminal-address/raw ((#\+ literal)))
  (s:string-address <- new "jjjj")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (replace-character 2:terminal-address/raw ((#\* literal)))
  )
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "* main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            ;^cursor
            "+ main/ 2 : 4 => ((3 integer))                                        "))
  (prn "F - process-key can move down multiple times"))
; try to move cursor down 4 more times
(run-code main5
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (replace-character 2:terminal-address/raw ((#\+ literal)))
  (s:string-address <- new "jjjj")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (replace-character 2:terminal-address/raw ((#\* literal)))
  )
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "+ main/ 2 : 4 => ((3 integer))                                        "
            "*                                                                     "))
  (prn "F - process-key doesn't move below bounds"))

(reset2)
(new-trace "process-key-expand")
(run-code main
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (x:string-address <- new
"schedule: main
run: main 0: (((1 integer)) <- ((copy)) ((1 literal)))
run: main 0: 1 => ((1 integer))
mem: ((1 integer)): 1 <= 1
run: main 1: (((2 integer)) <- ((copy)) ((3 literal)))
run: main 1: 3 => ((2 integer))
mem: ((2 integer)): 2 <= 3
run: main 2: (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))
mem: ((1 integer)) => 1
mem: ((2 integer)) => 3
run: main 2: 4 => ((3 integer))
mem: ((3 integer)): 3 <= 4
schedule:  done with routine")
  (s:stream-address <- init-stream x:string-address)
  (1:instruction-trace-address-array-address/raw <- parse-traces s:stream-address)
  (2:terminal-address/raw <- init-fake-terminal 70:literal 15:literal)
  ; position the cursor away from top of screen
  (cursor-down 2:terminal-address/raw)
  (cursor-down 2:terminal-address/raw)
  (3:space-address/raw <- browser-state 1:instruction-trace-address-array-address/raw 30:literal/screen-height)
  ; draw trace
  (print-traces-collapsed 3:space-address/raw/browser-state 2:terminal-address/raw 1:instruction-trace-address-array-address/raw)
  (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset)
)
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "+ main/ 2 : 4 => ((3 integer))                                        "))
  (prn "F - process-key: before expand"))
(run-code main2
  (default-space:space-address <- new space:literal 30:literal/capacity)
  ; move cursor to final line and expand
  (s:string-address <- new "k\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
; final line is expanded
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "- main/ 2 : 4 => ((3 integer))                                        "
            "   mem : ((3 integer)): 3 <= 4                                        "
            "   schedule :  done with routine                                      "))
  (prn "F - process-key expands the trace index at cursor on <enter>"))
; and cursor should remain on the top-level line
(run-code main3
  (replace-character 2:terminal-address/raw ((#\* literal)))
  )
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "* main/ 2 : 4 => ((3 integer))                                        "
            ;^cursor
            "   mem : ((3 integer)): 3 <= 4                                        "
            "   schedule :  done with routine                                      "))
  (prn "F - process-key positions cursor at start of trace index after expanding"))

(reset2)
(new-trace "process-key-expand-nonlast")
(run-code main
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (x:string-address <- new
"schedule: main
run: main 0: (((1 integer)) <- ((copy)) ((1 literal)))
run: main 0: 1 => ((1 integer))
mem: ((1 integer)): 1 <= 1
run: main 1: (((2 integer)) <- ((copy)) ((3 literal)))
run: main 1: 3 => ((2 integer))
mem: ((2 integer)): 2 <= 3
run: main 2: (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))
mem: ((1 integer)) => 1
mem: ((2 integer)) => 3
run: main 2: 4 => ((3 integer))
mem: ((3 integer)): 3 <= 4
schedule:  done with routine")
  (s:stream-address <- init-stream x:string-address)
  (1:instruction-trace-address-array-address/raw <- parse-traces s:stream-address)
  (2:terminal-address/raw <- init-fake-terminal 70:literal 15:literal)
  ; position the cursor away from top of screen
  (cursor-down 2:terminal-address/raw)
  (cursor-down 2:terminal-address/raw)
  (3:space-address/raw <- browser-state 1:instruction-trace-address-array-address/raw 30:literal/screen-height)
  ; draw trace
  (print-traces-collapsed 3:space-address/raw/browser-state 2:terminal-address/raw 1:instruction-trace-address-array-address/raw)
  ; expand penultimate line
  (s:string-address <- new "kk\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset)
)
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "- main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "   mem : ((1 integer)) => 1                                           "
            "   mem : ((2 integer)) => 3                                           "
            "+ main/ 2 : 4 => ((3 integer))                                        "))
  (prn "F - process-key: expanding a line continues to print lines after it"))

(reset2)
(new-trace "process-key-expanded")
(run-code main
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (x:string-address <- new
"schedule: main
run: main 0: (((1 integer)) <- ((copy)) ((1 literal)))
run: main 0: 1 => ((1 integer))
mem: ((1 integer)): 1 <= 1
mem: ((1 integer)): 1 <= 1
run: main 1: (((2 integer)) <- ((copy)) ((3 literal)))
run: main 1: 3 => ((2 integer))
mem: ((2 integer)): 2 <= 3
run: main 2: (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))
mem: ((1 integer)) => 1
mem: ((2 integer)) => 3
run: main 2: 4 => ((3 integer))
mem: ((3 integer)): 3 <= 4
schedule:  done with routine")
  (s:stream-address <- init-stream x:string-address)
  (1:instruction-trace-address-array-address/raw <- parse-traces s:stream-address)
  (2:terminal-address/raw <- init-fake-terminal 70:literal 15:literal)
  ; position the cursor away from top of screen
  (cursor-down 2:terminal-address/raw)
  (cursor-down 2:terminal-address/raw)
  (3:space-address/raw <- browser-state 1:instruction-trace-address-array-address/raw 30:literal/screen-height)
  ; draw trace
  (print-traces-collapsed 3:space-address/raw/browser-state 2:terminal-address/raw 1:instruction-trace-address-array-address/raw)
  ; expand penultimate line, then move one line down and draw cursor
  (s:string-address <- new "kk\nj")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (replace-character 2:terminal-address/raw ((#\* literal)))
  (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset)
)
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; cursor should be at next top-level 'run' line
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "- main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "   mem : ((1 integer)) => 1                                           "
            "   mem : ((2 integer)) => 3                                           "
            "* main/ 2 : 4 => ((3 integer))                                        "))
  (prn "F - process-key: navigation moves between top-level trace indices only"))
(run-code main2
  (default-space:space-address <- new space:literal 30:literal/capacity)
  ; reset previous cursor
  (replace-character 2:terminal-address/raw ((#\+ literal)))
  ; move cursor back up one line
  (s:string-address <- new "k")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  ; show cursor
  (replace-character 2:terminal-address/raw ((#\* literal)))
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; cursor should be back at the top of the expanded line
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "* main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "   mem : ((1 integer)) => 1                                           "
            "   mem : ((2 integer)) => 3                                           "
            "+ main/ 2 : 4 => ((3 integer))                                        "))
  (prn "F - process-key: navigation moves between top-level indices only - 2"))
(run-code main3
  (default-space:space-address <- new space:literal 30:literal/capacity)
  ; reset previous cursor
  (replace-character 2:terminal-address/raw ((#\+ literal)))
  ; press enter
  (s:string-address <- new "\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; expanded trace should now be collapsed
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "+ main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "+ main/ 2 : 4 => ((3 integer))                                        "
            "                                                                      "
            "                                                                      "))
  (prn "F - process-key: process-key collapses trace indices correctly after moving around"))
(run-code main4
  (default-space:space-address <- new space:literal 30:literal/capacity)
  ; move up a few lines, expand, then move down and expand again
  (s:string-address <- new "kkk\njjj\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
;?   (replace-character 2:terminal-address/raw ((#\* literal))) ;? 1
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; first expand should have no effect
(when (~screen-contains memory*.4 70
         (+ "                                                                      "
            "                                                                      "
            "+ main/ 0 : (((1 integer)) <- ((copy)) ((1 literal)))                 "
            "+ main/ 0 : 1 => ((1 integer))                                        "
            "+ main/ 1 : (((2 integer)) <- ((copy)) ((3 literal)))                 "
            "+ main/ 1 : 3 => ((2 integer))                                        "
            "- main/ 2 : (((3 integer)) <- ((add)) ((1 integer)) ((2 integer)))    "
            "   mem : ((1 integer)) => 1                                           "
            "   mem : ((2 integer)) => 3                                           "
            "+ main/ 2 : 4 => ((3 integer))                                        "))
  (prn "F - process-key: process-key collapses the previously expanded trace index when expanding elsewhere"))

;; manage screen height

(reset2)
(new-trace "trace-paginate")
(run-code main
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (x:string-address <- new
"run: main 0: a b c
mem: 0 a
run: main 1: d e f
mem: 1 a
mem: 1 b
mem: 1 c
mem: 1 d
mem: 1 e
run: main 2: g hi
run: main 3: j
mem: 3 a
run: main 4: k
run: main 5: l
run: main 6: m
run: main 7: n")
  (s:stream-address <- init-stream x:string-address)
  (traces:instruction-trace-address-array-address <- parse-traces s:stream-address)
  (2:terminal-address/raw <- init-fake-terminal 17:literal 15:literal)
  (3:space-address/raw/browser-state <- browser-state traces:instruction-trace-address-array-address 3:literal/screen-height)
  (print-traces-collapsed 3:space-address/raw/browser-state 2:terminal-address/raw)
  (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset)
)
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; screen shows a subset of collapsed trace lines
(when (~screen-contains memory*.4 17
         (+ "+ main/ 0 : a b c"
            "+ main/ 1 : d e f"
            "+ main/ 2 : g hi "))
  (prn "F - print-traces-collapsed can show just one 'page' of a larger trace"))

; expand top line
(run-code main2
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (s:string-address <- new "kkk\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; screen shows just first trace line fully expanded
(when (~screen-contains memory*.4 17
         (+ "- main/ 0 : a b c"
            "   mem : 0 a     "
            "+ main/ 1 : d e f"
            "                 "))
  (prn "F - expanding doesn't print past end of page"))
(run-code main2-2
  (replace-character 2:terminal-address/raw ((#\* literal)))
  )
; screen shows part of the second trace line expanded
(when (~screen-contains memory*.4 17
         (+ "* main/ 0 : a b c"
            "   mem : 0 a     "
            "+ main/ 1 : d e f"
            "                 "))
  (prn "F - cursor at right place after expand"))

; expand line below without first collapsing previously expanded line
(run-code main3
  (default-space:space-address <- new space:literal 30:literal/capacity)
  ; reset previous cursor
  (replace-character 2:terminal-address/raw ((#\- literal)))
  (s:string-address <- new "j\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; screen shows part of the second trace line expanded
(when (~screen-contains memory*.4 17
         (+ "+ main/ 0 : a b c"
            "- main/ 1 : d e f"
            "   mem : 1 a     "
            "                 "
            "                 "))
  (prn "F - expanding below expanded line respects screen/page height"))
(run-code main3-2
  (replace-character 2:terminal-address/raw ((#\* literal)))
  )
; screen shows part of the second trace line expanded
(when (~screen-contains memory*.4 17
         (+ "+ main/ 0 : a b c"
            "* main/ 1 : d e f"
            "   mem : 1 a     "
            "                 "
            "                 "))
  (prn "F - cursor at right place after expand below"))

; expand line *above* without first collapsing previously expanded line
(run-code main4
  (default-space:space-address <- new space:literal 30:literal/capacity)
  ; reset previous cursor
  (replace-character 2:terminal-address/raw ((#\- literal)))
  (s:string-address <- new "k\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; screen again shows first trace line expanded
(when (~screen-contains memory*.4 17
         (+ "- main/ 0 : a b c"
            "   mem : 0 a     "
            "+ main/ 1 : d e f"
            "                 "))
  (prn "F - expanding above expanded line respects screen/page height"))
;? (quit) ;? 1

; collapse everything and hit page-down
; again, we can't yet check for special keys like 'page-down so we'll use
; upper-case J and K for moving a page down or up, respectively.
(run-code main5
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (s:string-address <- new "\nJ")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; screen shows second page of traces
(when (~screen-contains memory*.4 17
         (+ "+ main/ 3 : j    "
            "+ main/ 4 : k    "
            "+ main/ 5 : l    "
            "                 "))
  (prn "F - 'page-down' skips to next page after this one"))
;? (quit) ;? 1

; move cursor down, then page-down
(run-code main6
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (s:string-address <- new "jJ")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; page-down behaves the same regardless of where the cursor was
(when (~screen-contains memory*.4 17
         (+ "+ main/ 6 : m    "
            "+ main/ 7 : n    "
            "                 "))
  (prn "F - 'page-down' skips to same place regardless of cursor position"))

; try to page-down past end of trace
(run-code main7
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (s:string-address <- new "J")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; no change
(when (~screen-contains memory*.4 17
         (+ "+ main/ 6 : m    "
            "+ main/ 7 : n    "
            "                 "))
  (prn "F - 'page-down' skips to same place regardless of cursor position"))

; now page-up
(run-code main8
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; precisely undoes previous page-down
(when (~screen-contains memory*.4 17
         (+ "+ main/ 3 : j    "
            "+ main/ 4 : k    "
            "+ main/ 5 : l    "
            "                 "))
  (prn "F - 'page-up' on partial page behaves as if page was full"))

;; back to page 1, expand a line
(run-code main9
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (s:string-address <- new "Kkk\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
;?   (print-character 2:terminal-address/raw ((#\* literal))) ;? 1
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; now we have an expanded line
(when (~screen-contains memory*.4 17
         (+ "+ main/ 0 : a b c"
            "- main/ 1 : d e f"
            "   mem : 1 a     "
            "                 "
            "                 "))
  (prn "F - intermediate state after expanding a line"))

; next page
(run-code main10
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (s:string-address <- new "J")
  (k:keyboard-address <- init-keyboard s:string-address)
;?   ($start-tracing) ;? 1
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; no lines skipped, page with just inner traces
(when (~screen-contains memory*.4 17
         (+ "   mem : 1 b     "
            "   mem : 1 c     "
            "   mem : 1 d     "
            "                 "
            "                 "))
  (prn "F - page down continues existing expanded line"))

; next page
(run-code main11
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (s:string-address <- new "J")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
; page with partial inner trace and more collapsed
(when (~screen-contains memory*.4 17
         (+ "   mem : 1 e     "
            "+ main/ 2 : g hi "
            "+ main/ 3 : j    "
            "                 "
            "                 "))
  (prn "F - page down shows collapsed lines after continued expanded line at top of page"))
;? (quit) ;? 1

; page-up through an expanded line
(run-code main12
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "   mem : 1 b     "
            "   mem : 1 c     "
            "   mem : 1 d     "
            "                 "
            "                 "))
  (prn "F - page up understands expanded lines"))

;; page up scenarios
; skip ones starting at top of trace for now
; page-up scenario 2
; + run: main 0: a b c
;   mem: 0 a
; + run: main 1: d e f  <- top of page
;   mem: 1 a
;   mem: 1 b
;   mem: 1 c
;   mem: 1 d
;   mem: 1 e
; + run: main 2: g hi
; + run: main 3: j      <- bottom of page
;   mem: 3 a
; + run: main 4: k
; + run: main 5: l
; + run: main 6: m
; + run: main 7: n
(run-code main13
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
;?   ($print first-index-on-page:integer/space:1) ;? 1
;?   ($print (("\n" literal))) ;? 1
  (first-index-on-page:integer/space:1 <- copy 1:literal)
;?   ($print first-index-on-page:integer/space:1) ;? 1
;?   ($print (("\n" literal))) ;? 1
  (first-subindex-on-page:integer/space:1 <- copy -2:literal)
  (last-index-on-page:integer/space:1 <- copy 3:literal)
  (last-subindex-on-page:integer/space:1 <- copy -2:literal)
  (expanded-index:integer/space:1 <- copy -1:literal)
  (expanded-children:integer/space:1 <- copy -1:literal)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 0 : a b c"
            "+ main/ 1 : d e f"
            "+ main/ 2 : g hi "))
  (prn "F - page-up 2"))

; page-up scenario 3
; + run: main 0: a b c
;   mem: 0 a
; - run: main 1: d e f  <- top of page
;   mem: 1 a
;   mem: 1 b            <- bottom of page
;   mem: 1 c
;   mem: 1 d
;   mem: 1 e
; + run: main 2: g hi
; + run: main 3: j
;   mem: 3 a
; + run: main 4: k
; + run: main 5: l
; + run: main 6: m
; + run: main 7: n
(run-code main14pre
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 1:literal)
  (first-subindex-on-page:integer/space:1 <- copy -1:literal)
  (last-index-on-page:integer/space:1 <- copy 1:literal)
  (last-subindex-on-page:integer/space:1 <- copy 1:literal)
  (expanded-index:integer/space:1 <- copy 1:literal)
  (expanded-children:integer/space:1 <- copy 5:literal)
  (to-top 0:space-address/browser-state 2:terminal-address/raw)
  (print-page 0:space-address/browser-state 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "- main/ 1 : d e f"
            "   mem : 1 a     "
            "   mem : 1 b     "
            "                 "
            "                 "))
  (prn "F - page-up 3: initial print-page state"))
(run-code main14post
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 0:literal)
  (first-subindex-on-page:integer/space:1 <- copy -2:literal)
  (last-index-on-page:integer/space:1 <- copy 1:literal)
  (last-subindex-on-page:integer/space:1 <- copy 0:literal)
  (expanded-index:integer/space:1 <- copy 1:literal)
  (expanded-children:integer/space:1 <- copy 5:literal)
  (to-top 0:space-address/browser-state 2:terminal-address/raw)
  (print-page 0:space-address/browser-state 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 0 : a b c"
            "- main/ 1 : d e f"
            "   mem : 1 a     "
            "                 "
            "                 "))
  (prn "F - page-up 3: expected post page-up state"))
;? (quit) ;? 1
(run-code main14
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 1:literal)
  (first-subindex-on-page:integer/space:1 <- copy -1:literal)
  (last-index-on-page:integer/space:1 <- copy 1:literal)
  (last-subindex-on-page:integer/space:1 <- copy 1:literal)
  (expanded-index:integer/space:1 <- copy 1:literal)
  (expanded-children:integer/space:1 <- copy 5:literal)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
;?   ($start-tracing) ;? 1
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 0 : a b c"
            "- main/ 1 : d e f"
            "   mem : 1 a     "
            "                 "
            "                 "))
  (prn "F - page-up 3"))
;? (quit) ;? 1

; page-up scenario 4
; + run: main 0: a b c
;   mem: 0 a
; - run: main 1: d e f
;   mem: 1 a
;   mem: 1 b
;   mem: 1 c            <- top of page
;   mem: 1 d
;   mem: 1 e            <- bottom of page
; + run: main 2: g hi
; + run: main 3: j
;   mem: 3 a
; + run: main 4: k
; + run: main 5: l
; + run: main 6: m
; + run: main 7: n
(run-code main15
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 1:literal)
  (first-subindex-on-page:integer/space:1 <- copy 2:literal)
  (last-index-on-page:integer/space:1 <- copy 1:literal)
  (last-subindex-on-page:integer/space:1 <- copy 4:literal)
  (expanded-index:integer/space:1 <- copy 1:literal)
  (expanded-children:integer/space:1 <- copy 5:literal)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "- main/ 1 : d e f"
            "   mem : 1 a     "
            "   mem : 1 b     "
            "                 "
            "                 "))
  (prn "F - page-up 4"))

; page-up scenario 5
; + run: main 0: a b c
;   mem: 0 a
; - run: main 1: d e f
;   mem: 1 a            <- top of page
;   mem: 1 b
;   mem: 1 c            <- bottom of page
;   mem: 1 d
;   mem: 1 e
; + run: main 2: g hi
; + run: main 3: j
;   mem: 3 a
; + run: main 4: k
; + run: main 5: l
; + run: main 6: m
; + run: main 7: n
(run-code main16pre
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 1:literal)
  (first-subindex-on-page:integer/space:1 <- copy 0:literal)
  (last-index-on-page:integer/space:1 <- copy 1:literal)
  (last-subindex-on-page:integer/space:1 <- copy 2:literal)
  (expanded-index:integer/space:1 <- copy 1:literal)
  (expanded-children:integer/space:1 <- copy 5:literal)
;?   ($print cursor-row:integer/space:1) ;? 1
  (to-top 0:space-address/browser-state 2:terminal-address/raw)
;?   ($print cursor-row:integer/space:1) ;? 1
  (print-page 0:space-address/browser-state 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "   mem : 1 a     "
            "   mem : 1 b     "
            "   mem : 1 c     "
            "                 "
            "                 "))
  (prn "F - page-up 5: initial print-page state"))
(run-code main16
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 1:literal)
  (first-subindex-on-page:integer/space:1 <- copy 0:literal)
  (last-index-on-page:integer/space:1 <- copy 1:literal)
  (last-subindex-on-page:integer/space:1 <- copy 2:literal)
  (expanded-index:integer/space:1 <- copy 1:literal)
  (expanded-children:integer/space:1 <- copy 5:literal)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
;?   ($dump-browser-state 3:space-address/raw/browser-state) ;? 1
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 0 : a b c"
            "- main/ 1 : d e f"
            "   mem : 1 a     "
            "                 "
            "                 "))
  (prn "F - page-up 5"))

; page-up scenario 6
; + run: main 0: a b c
;   mem: 0 a
; - run: main 1: d e f
;   mem: 1 a
;   mem: 1 b            <- top of page
;   mem: 1 c
;   mem: 1 d            <- bottom of page
;   mem: 1 e
; + run: main 2: g hi
; + run: main 3: j
;   mem: 3 a
; + run: main 4: k
; + run: main 5: l
; + run: main 6: m
; + run: main 7: n
(run-code main17
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 1:literal)
  (first-subindex-on-page:integer/space:1 <- copy 1:literal)
  (last-index-on-page:integer/space:1 <- copy 1:literal)
  (last-subindex-on-page:integer/space:1 <- copy 3:literal)
  (expanded-index:integer/space:1 <- copy 1:literal)
  (expanded-children:integer/space:1 <- copy 5:literal)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 0 : a b c"
            "- main/ 1 : d e f"
            "   mem : 1 a     "
            "                 "
            "                 "))
  (prn "F - page-up 6"))

; page-up scenario 7
; + run: main 0: a b c
;   mem: 0 a
; + run: main 1: d e f  <- top of page
;   mem: 1 a
;   mem: 1 b
;   mem: 1 c
;   mem: 1 d
;   mem: 1 e
; + run: main 2: g hi
; - run: main 3: j      <- bottom of page
;   mem: 3 a
; + run: main 4: k
; + run: main 5: l
; + run: main 6: m
; + run: main 7: n
(run-code main18
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 1:literal)
  (first-subindex-on-page:integer/space:1 <- copy -2:literal)
  (last-index-on-page:integer/space:1 <- copy 3:literal)
  (last-subindex-on-page:integer/space:1 <- copy -1:literal)
  (expanded-index:integer/space:1 <- copy 3:literal)
  (expanded-children:integer/space:1 <- copy 1:literal)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 0 : a b c"
            "+ main/ 1 : d e f"
            "+ main/ 2 : g hi "
            "                 "))
  (prn "F - page-up 7 - expanded index starts below bottom"))
;? (quit) ;? 1

; page-up scenario 8
; + run: main 0: a b c
;   mem: 0 a
; + run: main 1: d e f  <- top of page
;   mem: 1 a
;   mem: 1 b
;   mem: 1 c
;   mem: 1 d
;   mem: 1 e
; + run: main 2: g hi
; + run: main 3: j      <- bottom of page
;   mem: 3 a
; - run: main 4: k
; + run: main 5: l
; + run: main 6: m
; + run: main 7: n
(run-code main19
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 1:literal)
  (first-subindex-on-page:integer/space:1 <- copy -2:literal)
  (last-index-on-page:integer/space:1 <- copy 3:literal)
  (last-subindex-on-page:integer/space:1 <- copy -1:literal)
  (expanded-index:integer/space:1 <- copy 4:literal)
  (expanded-children:integer/space:1 <- copy 0:literal)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 0 : a b c"
            "+ main/ 1 : d e f"
            "+ main/ 2 : g hi "
            "                 "))
  (prn "F - page-up 8 - expanded index starts below top - 2"))

; page-up scenario 9
; - run: main 0: a b c
;   mem: 0 a
; + run: main 1: d e f
;   mem: 1 a
;   mem: 1 b
;   mem: 1 c
;   mem: 1 d
;   mem: 1 e
; + run: main 2: g hi
; + run: main 3: j      <- top of page
;   mem: 3 a
; + run: main 4: k
; + run: main 5: l      <- bottom of page
; + run: main 6: m
; + run: main 7: n
(run-code main20
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 3:literal)
  (first-subindex-on-page:integer/space:1 <- copy -2:literal)
  (last-index-on-page:integer/space:1 <- copy 5:literal)
  (last-subindex-on-page:integer/space:1 <- copy -2:literal)
  (expanded-index:integer/space:1 <- copy 0:literal)
  (expanded-children:integer/space:1 <- copy 1:literal)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "   mem : 0 a     "
            "+ main/ 1 : d e f"
            "+ main/ 2 : g hi "
            "                 "))
  (prn "F - page-up 9 - expanded index overlaps target page"))

; page-up scenario 10
; - run: main 0: a b c
;   mem: 0 a
; + run: main 1: d e f
;   mem: 1 a
;   mem: 1 b
;   mem: 1 c
;   mem: 1 d
;   mem: 1 e
; + run: main 2: g hi   <- top of page
; + run: main 3: j
;   mem: 3 a
; + run: main 4: k      <- bottom of page
; + run: main 5: l
; + run: main 6: m
; + run: main 7: n
(run-code main21pre
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 2:literal)
  (first-subindex-on-page:integer/space:1 <- copy -2:literal)
  (last-index-on-page:integer/space:1 <- copy 4:literal)
  (last-subindex-on-page:integer/space:1 <- copy -2:literal)
  (expanded-index:integer/space:1 <- copy 0:literal)
  (expanded-children:integer/space:1 <- copy 1:literal)
  (to-top 0:space-address/browser-state 2:terminal-address/raw)
;?   ($start-tracing) ;? 2
  (print-page 0:space-address/browser-state 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 2 : g hi "
            "+ main/ 3 : j    "
            "+ main/ 4 : k    "
            "                 "
            "                 "))
  (prn "F - page-up 10: initial print-page state"))
;? (quit) ;? 1
(run-code main21
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 2:literal)
  (first-subindex-on-page:integer/space:1 <- copy -2:literal)
  (last-index-on-page:integer/space:1 <- copy 4:literal)
  (last-subindex-on-page:integer/space:1 <- copy -2:literal)
  (expanded-index:integer/space:1 <- copy 0:literal)
  (expanded-children:integer/space:1 <- copy 1:literal)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "- main/ 0 : a b c"
            "   mem : 0 a     "
            "+ main/ 1 : d e f"
            "                 "
            "                 "))
  (prn "F - page-up 10 - expanded index overlaps target page - 2"))
;? (quit) ;? 2

(reset2)
(new-trace "trace-paginate2")
; page-up scenario 11
; + run: main 0: a b c
;   mem: 0 a
; + run: main 1: d e f
; - run: main 2: g hi
;   mem: 2 a
; + run: main 3: j      <- top of page
;   mem: 3 a
; + run: main 4: k
; + run: main 5: l      <- bottom of page
; + run: main 6: m
; + run: main 7: n
(run-code main22
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (x:string-address <- new
"run: main 0: a b c
mem: 0 a
run: main 1: d e f
run: main 2: g hi
mem: 2 a
run: main 3: j
mem: 3 a
run: main 4: k
run: main 5: l
run: main 6: m
run: main 7: n")
  (s:stream-address <- init-stream x:string-address)
  (traces:instruction-trace-address-array-address <- parse-traces s:stream-address)
  (2:terminal-address/raw <- init-fake-terminal 17:literal 15:literal)
  (3:space-address/raw/browser-state <- browser-state traces:instruction-trace-address-array-address 3:literal/screen-height)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset)
  (first-index-on-page:integer/space:1 <- copy 3:literal)
  (first-subindex-on-page:integer/space:1 <- copy -2:literal)
  (last-index-on-page:integer/space:1 <- copy 5:literal)
  (last-subindex-on-page:integer/space:1 <- copy -2:literal)
  (expanded-index:integer/space:1 <- copy 2:literal)
  (expanded-children:integer/space:1 <- copy 1:literal)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 1 : d e f"
            "- main/ 2 : g hi "
            "   mem : 2 a     "
            "                 "
            "                 "))
  (prn "F - page-up 11 - expanded index overlaps target page - 3"))

; page-up scenario 12
; + run: main 0: a b c
;   mem: 0 a
; + run: main 1: d e f
; - run: main 2: g hi
;   mem: 2 a
; + run: main 3: j
;   mem: 3 a
; + run: main 4: k      <- top of page
; + run: main 5: l
; + run: main 6: m      <- bottom of page
; + run: main 7: n
(run-code main23
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 4:literal)
  (first-subindex-on-page:integer/space:1 <- copy -2:literal)
  (last-index-on-page:integer/space:1 <- copy 6:literal)
  (last-subindex-on-page:integer/space:1 <- copy -2:literal)
  (expanded-index:integer/space:1 <- copy 2:literal)
  (expanded-children:integer/space:1 <- copy 1:literal)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "- main/ 2 : g hi "
            "   mem : 2 a     "
            "+ main/ 3 : j    "
            "                 "))
  (prn "F - page-up 12 - expanded index overlaps target page - 4"))

; page-up scenario 13
; + run: main 0: a b c
;   mem: 0 a
; + run: main 1: d e f
; - run: main 2: g hi
;   mem: 2 a
; + run: main 3: j
;   mem: 3 a
; + run: main 4: k
; + run: main 5: l
; + run: main 6: m      <- top of page
; + run: main 7: n      <- bottom of page
(run-code main24
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 6:literal)
  (first-subindex-on-page:integer/space:1 <- copy -2:literal)
  (last-index-on-page:integer/space:1 <- copy 7:literal)
  (last-subindex-on-page:integer/space:1 <- copy -2:literal)
  (expanded-index:integer/space:1 <- copy 2:literal)
  (expanded-children:integer/space:1 <- copy 1:literal)
  (s:string-address <- new "K")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 3 : j    "
            "+ main/ 4 : k    "
            "+ main/ 5 : l    "
            "                 "))
  (prn "F - page-up 13 - expanded index far above target page"))

(run-code main25
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (s:string-address <- new "kk\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 3 : j    "
            "- main/ 4 : k    "
            "+ main/ 5 : l    "
            "                 "))
  (prn "F - process-key expands a trace index on any page"))
(run-code main26
  (replace-character 2:terminal-address/raw ((#\* literal)))
)
(when (~screen-contains memory*.4 17
         (+ "+ main/ 3 : j    "
            "* main/ 4 : k    "
            "+ main/ 5 : l    "
            "                 "))
  (prn "F - process-key resets the cursor after expand"))
;? (quit) ;? 1

(run-code main27
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  ; reset previous cursor
  (replace-character 2:terminal-address/raw ((#\- literal)))
  (s:string-address <- new "j\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 3 : j    "
            "+ main/ 4 : k    "
            "- main/ 5 : l    "
            "                 "))
  (prn "F - process-key expands a trace index on any page when there's an expanded trace index above it on the same page"))

; expand scenario
; + run: main 0: a b c
;   mem: 0 a
; + run: main 1: d e f
; - run: main 2: g hi
;   mem: 2 a              <- top of page
; + run: main 3: j
;   mem: 3 a
; + run: main 4: k        <- bottom of page
; + run: main 5: l
; + run: main 6: m
; + run: main 7: n
(run-code main28
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 2:literal)
  (first-subindex-on-page:integer/space:1 <- copy 0:literal)
  (last-index-on-page:integer/space:1 <- copy 4:literal)
  (last-subindex-on-page:integer/space:1 <- copy -2:literal)
  (expanded-index:integer/space:1 <- copy 2:literal)
  (expanded-children:integer/space:1 <- copy 1:literal)
  (to-top 0:space-address/browser-state 2:terminal-address/raw)
  (print-page 0:space-address/browser-state 2:terminal-address/raw)
  (s:string-address <- new "kk\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
;?   (replace-character 2:terminal-address/raw ((#\* literal))) ;? 2
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
;?          (+ "   mem : 2 a     "  ; after print-page
;?             "+ main/ 3 : j    "
;?             "+ main/ 4 : k    "
;?             "                 "))
         (+ "+ main/ 2 : g hi "
            "- main/ 3 : j    "
            "   mem : 3 a     "
            "                 "))
;?          (+ "- main/ 3 : j    "  ; alternative interpretation in case the above isn't intuitive
;?             "   mem : 3 a     "
;?          (+ "- main/ 4 : k    "
;?             "                 "))
  (prn "F - process-key expands trace index on a page that starts with a partial expanded trace"))

(reset2)
(new-trace "trace-paginate3")
; expand scenario
; + run: main 0: a b c
;   mem: 0 a
; + run: main 1: d e f
;   mem: 1 a
;   mem: 1 b              <- top of page
;   mem: 1 c
; + run: main 2: g hi     <- bottom of page
;   mem: 2 a
; + run: main 3: j
; + run: main 4: k
; + run: main 5: l
(run-code main29
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (x:string-address <- new
"run: main 0: a b c
mem: 0 a
run: main 1: d e f
mem: 1 a
mem: 1 b
mem: 1 c
run: main 2: g hi
mem: 2 a
run: main 3: j
run: main 4: k
run: main 5: l")
  (s:stream-address <- init-stream x:string-address)
  (traces:instruction-trace-address-array-address <- parse-traces s:stream-address)
  (2:terminal-address/raw <- init-fake-terminal 17:literal 15:literal)
  (3:space-address/raw/browser-state <- browser-state traces:instruction-trace-address-array-address 3:literal/screen-height)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (4:string-address/raw <- get 2:terminal-address/raw/deref data:offset)
  (first-index-on-page:integer/space:1 <- copy 1:literal)
  (first-subindex-on-page:integer/space:1 <- copy 1:literal)
  (last-index-on-page:integer/space:1 <- copy 3:literal)
  (last-subindex-on-page:integer/space:1 <- copy -2:literal)
  (expanded-index:integer/space:1 <- copy 1:literal)
  (expanded-children:integer/space:1 <- copy 3:literal)
  (to-top 0:space-address/browser-state 2:terminal-address/raw)
  (print-page 0:space-address/browser-state 2:terminal-address/raw)
;?   (replace-character 2:terminal-address/raw ((#\* literal))) ;? 1
  (s:string-address <- new "k\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
;?          (+ "   mem : 1 b     "  ; after print-page
;?             "   mem : 1 c     "
;?             "+ main/ 2 : g hi "
;?             "*                "
;?             "                 "))
         (+ "+ main/ 1 : d e f"
            "- main/ 2 : g hi "
            "   mem : 2 a     "
            "                 "
            "                 "))
  (prn "F - process-key expands trace index on a page that starts with a partial expanded trace - 2"))

; expand scenario
; + run: main 0: a b c
;   mem: 0 a
; + run: main 1: d e f
;   mem: 1 a              <- top of page
;   mem: 1 b
;   mem: 1 c              <- bottom of page
; + run: main 2: g hi
;   mem: 2 a
; + run: main 3: j
; + run: main 4: k
; + run: main 5: l
(run-code main30
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  (first-index-on-page:integer/space:1 <- copy 1:literal)
  (first-subindex-on-page:integer/space:1 <- copy 0:literal)
  (last-index-on-page:integer/space:1 <- copy 1:literal)
  (last-subindex-on-page:integer/space:1 <- copy 2:literal)
  (expanded-index:integer/space:1 <- copy 1:literal)
  (expanded-children:integer/space:1 <- copy 3:literal)
  (to-top 0:space-address/browser-state 2:terminal-address/raw)
  (print-page 0:space-address/browser-state 2:terminal-address/raw)
  (s:string-address <- new "k\n")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
;?   (replace-character 2:terminal-address/raw ((#\* literal))) ;? 1
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
;?          (+ "   mem : 1 a     "  ; after print-page
;?             "   mem : 1 b     "
;?             "   mem : 1 c     "
;?             "*                "))
         (+ "+ main/ 1 : d e f"
            "+ main/ 2 : g hi "
            "+ main/ 3 : j    "))
  (prn "F - process-key expands trace index on a page with only subindex lines"))

(run-code main31
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  ; reinitialize
  (first-index-on-page:integer/space:1 <- copy 0:literal)
  (first-subindex-on-page:integer/space:1 <- copy -2:literal)
  (last-index-on-page:integer/space:1 <- copy 2:literal)
  (last-subindex-on-page:integer/space:1 <- copy -2:literal)
  (expanded-index:integer/space:1 <- copy -1:literal)
  (expanded-children:integer/space:1 <- copy -1:literal)
  (to-top 0:space-address/browser-state 2:terminal-address/raw)
  (print-page 0:space-address/browser-state 2:terminal-address/raw)
;?   (replace-character 2:terminal-address/raw ((#\* literal))) ;? 1
  (s:string-address <- new "Jjj\n")
  (k:keyboard-address <- init-keyboard s:string-address)
;?   ($print (("test: first subindex " literal))) ;? 1
;?   ($print first-subindex-on-page:integer/space:1) ;? 1
;?   ($print (("\n" literal))) ;? 1
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
;?   ($print (("test: first subindex 2 " literal))) ;? 1
;?   ($print first-subindex-on-page:integer/space:1) ;? 1
;?   ($print (("\n" literal))) ;? 1
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
;?   ($print (("test: first subindex 3 " literal))) ;? 1
;?   ($print first-subindex-on-page:integer/space:1) ;? 1
;?   ($print (("\n" literal))) ;? 1
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
;?   ($print (("test: first subindex 4 " literal))) ;? 1
;?   ($print first-subindex-on-page:integer/space:1) ;? 1
;?   ($print (("\n" literal))) ;? 1
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
(when (~screen-contains memory*.4 17
         (+ "+ main/ 3 : j    "
            "+ main/ 4 : k    "
            "- main/ 5 : l    "
            "                 "
            "                 "))
  (prn "F - process-key expands final index of trace at bottom of page"))

(run-code main32
  (default-space:space-address <- new space:literal 30:literal/capacity)
  (0:space-address/names:browser-state <- copy 3:space-address/raw/browser-state)
  ; reinitialize
  (first-index-on-page:integer/space:1 <- copy 0:literal)
  (first-subindex-on-page:integer/space:1 <- copy -2:literal)
  (last-index-on-page:integer/space:1 <- copy 2:literal)
  (last-subindex-on-page:integer/space:1 <- copy -2:literal)
  (expanded-index:integer/space:1 <- copy -1:literal)
  (expanded-children:integer/space:1 <- copy -1:literal)
  (to-top 0:space-address/browser-state 2:terminal-address/raw)
  (print-page 0:space-address/browser-state 2:terminal-address/raw)
;?   (replace-character 2:terminal-address/raw ((#\* literal))) ;? 1
  (s:string-address <- new "kk\nJjj")
  (k:keyboard-address <- init-keyboard s:string-address)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (process-key 3:space-address/raw/browser-state k:keyboard-address 2:terminal-address/raw)
  (5:integer-address/raw <- get-address 2:terminal-address/raw/deref cursor-row:offset)
  )
(each routine completed-routines*
  (awhen rep.routine!error
    (prn "error - " it)))
;? (prn (memory* memory*.5)) ;? 1
(when (~is 3 (memory* memory*.5))
  (prn "F - key movement stays within screen bounds, even when no next trace on page"))

(reset2)
;? (print-times) ;? 3