home *** CD-ROM | disk | FTP | other *** search
| Unknown | 1984-10-21 | 25.0 KB |
open in: 
MacOS 8.1
|
Win98
|
DOS
view JSON data
|
view as text
This file was not able to be converted.
This format is not currently supported by dexvert.
| Confidence | Program | Detection | Match Type | Support
|
|---|
| 1%
| dexvert
| TheDraw Pascal screen Image (image/theDrawPascalScreenImage)
| ext
| Unsupported |
| 100%
| file
| SIMH tape data
| default (weak)
| |
| 99%
| file
| data
| default
|
|
hex view+--------+-------------------------+-------------------------+--------+--------+
|00000000| 0d 0a 00 00 00 00 00 00 | 70 72 6f 67 72 61 6d 20 |........|program |
|00000010| 4c 49 53 50 3b 0d 0a 00 | 00 00 00 00 00 0d 0a 00 |LISP;...|........|
|00000020| 00 00 00 00 00 7b 0d 0a | 00 00 00 00 00 00 20 20 |.....{..|...... |
|00000030| 54 68 65 20 65 73 73 65 | 6e 63 65 20 6f 66 20 61 |The esse|nce of a|
|00000040| 20 4c 49 53 50 20 49 6e | 74 65 72 70 72 65 74 65 | LISP In|terprete|
|00000050| 72 2e 0d 0a 00 00 00 00 | 00 00 20 20 77 72 69 74 |r.......|.. writ|
|00000060| 74 65 6e 20 62 79 20 57 | 2e 20 54 61 79 6c 6f 72 |ten by W|. Taylor|
|00000070| 20 61 6e 64 20 4c 2e 20 | 43 6f 78 0d 0a 00 00 00 | and L. |Cox.....|
|00000080| 00 00 00 20 20 46 69 72 | 73 74 20 64 61 74 65 20 |... Fir|st date |
|00000090| 73 74 61 72 74 65 64 20 | 3a 20 31 30 2f 32 39 2f |started |: 10/29/|
|000000a0| 37 36 0d 0a 00 00 00 00 | 00 00 20 20 4c 61 73 74 |76......|.. Last|
|000000b0| 20 64 61 74 65 20 6d 6f | 64 69 66 69 65 64 20 3a | date mo|dified :|
|000000c0| 20 31 32 2f 31 30 2f 37 | 36 0d 0a 00 00 00 00 00 | 12/10/7|6.......|
|000000d0| 00 7d 0d 0a 00 00 00 00 | 00 00 0d 0a 00 00 00 00 |.}......|........|
|000000e0| 00 00 6c 61 62 65 6c 0d | 0a 00 00 00 00 00 00 20 |..label.|....... |
|000000f0| 20 31 2c 20 20 7b 20 75 | 73 65 64 20 74 6f 20 72 | 1, { u|sed to r|
|00000100| 65 63 6f 76 65 72 20 61 | 66 74 65 72 20 61 6e 20 |ecover a|fter an |
|00000110| 65 72 72 6f 72 20 62 79 | 20 74 68 65 20 75 73 65 |error by| the use|
|00000120| 72 20 20 7d 0d 0a 00 00 | 00 00 00 00 20 20 32 3b |r }....|.... 2;|
|00000130| 20 20 7b 20 69 6e 20 63 | 61 73 65 20 74 68 65 20 | { in c|ase the |
|00000140| 65 6e 64 20 2e 20 66 69 | 6c 65 20 69 73 20 72 65 |end . fi|le is re|
|00000150| 61 63 68 65 64 20 62 65 | 66 6f 72 65 20 61 20 66 |ached be|fore a f|
|00000160| 69 6e 20 63 61 72 64 20 | 7d 0d 0a 00 00 00 00 00 |in card |}.......|
|00000170| 00 0d 0a 00 00 00 00 00 | 00 63 6f 6e 73 74 0d 0a |........|.const..|
|00000180| 00 00 00 00 00 00 20 20 | 6d 61 78 6e 6f 64 65 20 |...... |maxnode |
|00000190| 3d 20 31 30 30 30 3b 0d | 0a 00 00 00 00 00 00 0d |= 1000;.|........|
|000001a0| 0a 00 00 00 00 00 00 74 | 79 70 65 0d 0a 00 00 00 |.......t|ype.....|
|000001b0| 00 00 00 20 20 69 6e 70 | 75 74 73 79 6d 62 6f 6c |... inp|utsymbol|
|000001c0| 20 3d 0d 0a 00 00 00 00 | 00 00 20 20 20 20 28 61 | =......|.. (a|
|000001d0| 74 6f 6d 2c 20 70 65 72 | 69 6f 64 2c 20 6c 70 61 |tom, per|iod, lpa|
|000001e0| 72 65 6e 2c 20 72 70 61 | 72 65 6e 29 3b 0d 0a 00 |ren, rpa|ren);...|
|000001f0| 00 00 00 00 00 20 20 72 | 65 73 65 72 76 65 64 77 |..... r|eservedw|
|00000200| 6f 72 64 73 20 3d 0d 0a | 00 00 00 00 00 00 20 20 |ords =..|...... |
|00000210| 20 20 28 72 65 70 6c 61 | 63 65 68 73 79 6d 2c 20 | (repla|cehsym, |
|00000220| 72 65 70 6c 61 63 65 74 | 73 79 6d 2c 20 68 65 61 |replacet|sym, hea|
|00000230| 64 73 79 6d 2c 20 74 61 | 69 6c 73 79 6d 2c 20 65 |dsym, ta|ilsym, e|
|00000240| 71 73 79 6d 2c 20 71 75 | 6f 74 65 73 79 6d 2c 0d |qsym, qu|otesym,.|
|00000250| 0a 00 00 00 00 00 00 20 | 20 20 20 20 61 74 6f 6d |....... | atom|
|00000260| 73 79 6d 2c 20 63 6f 6e | 64 73 79 6d 2c 20 6c 61 |sym, con|dsym, la|
|00000270| 62 65 6c 73 79 6d 2c 20 | 6c 61 6d 62 64 61 73 79 |belsym, |lambdasy|
|00000280| 6d 2c 20 63 6f 70 79 73 | 79 6d 2c 20 61 70 70 65 |m, copys|ym, appe|
|00000290| 6e 64 73 79 6d 2c 20 63 | 6f 6e 63 73 79 6d 2c 0d |ndsym, c|oncsym,.|
|000002a0| 0a 00 00 00 00 00 00 20 | 20 20 20 20 63 6f 6e 73 |....... | cons|
|000002b0| 73 79 6d 29 3b 0d 0a 00 | 00 00 00 00 00 20 20 73 |sym);...|..... s|
|000002c0| 74 61 74 75 73 74 79 70 | 65 20 3d 0d 0a 00 00 00 |tatustyp|e =.....|
|000002d0| 00 00 00 20 20 20 20 28 | 75 6e 6d 61 72 6b 65 64 |... (|unmarked|
|000002e0| 2c 20 6c 65 66 74 2c 20 | 72 69 67 68 74 2c 20 6d |, left, |right, m|
|000002f0| 61 72 6b 65 64 29 3b 0d | 0a 00 00 00 00 00 00 20 |arked);.|....... |
|00000300| 20 73 79 6d 62 65 78 70 | 70 74 72 20 3d 20 5e 73 | symbexp|ptr = ^s|
|00000310| 79 6d 62 6f 6c 69 63 65 | 78 70 72 65 73 73 69 6f |ymbolice|xpressio|
|00000320| 6e 3b 0d 0a 00 00 00 00 | 00 00 20 20 61 6c 66 61 |n;......|.. alfa|
|00000330| 20 3d 20 61 72 72 61 79 | 20 5b 31 20 2e 2e 20 31 | = array| [1 .. 1|
|00000340| 30 5d 20 6f 66 20 63 68 | 61 72 3b 0d 0a 00 00 00 |0] of ch|ar;.....|
|00000350| 00 00 00 20 20 73 79 6d | 62 6f 6c 69 63 65 78 70 |... sym|bolicexp|
|00000360| 72 65 73 73 69 6f 6e 20 | 3d 20 72 65 63 6f 72 64 |ression |= record|
|00000370| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 20 20 |........| |
|00000380| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000390| 20 73 74 61 74 75 73 20 | 3a 20 73 74 61 74 75 73 | status |: status|
|000003a0| 74 79 70 65 3b 0d 0a 00 | 00 00 00 00 00 20 20 20 |type;...|..... |
|000003b0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000003c0| 20 20 20 20 20 20 6e 65 | 78 74 20 3a 20 73 79 6d | ne|xt : sym|
|000003d0| 62 65 78 70 70 74 72 3b | 0d 0a 00 00 00 00 00 00 |bexpptr;|........|
|000003e0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000003f0| 20 20 20 20 20 20 20 20 | 20 63 61 73 65 20 61 6e | | case an|
|00000400| 61 74 6f 6d 20 3a 20 62 | 6f 6f 6c 65 61 6e 20 6f |atom : b|oolean o|
|00000410| 66 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |f.......|. |
|00000420| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000430| 20 20 20 20 20 20 20 74 | 72 75 65 20 3a 20 28 6e | t|rue : (n|
|00000440| 61 6d 65 20 3a 20 61 6c | 66 61 3b 0d 0a 00 00 00 |ame : al|fa;.....|
|00000450| 00 00 00 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |... | |
|00000460| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000470| 20 20 20 20 20 20 20 20 | 20 63 61 73 65 20 69 73 | | case is|
|00000480| 61 72 65 73 65 72 76 65 | 64 77 6f 72 64 20 3a 20 |areserve|dword : |
|00000490| 62 6f 6f 6c 65 61 6e 20 | 6f 66 0d 0a 00 00 00 00 |boolean |of......|
|000004a0| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |.. | |
|000004b0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000004c0| 20 20 20 20 20 20 20 20 | 20 20 20 20 74 72 75 65 | | true|
|000004d0| 20 3a 20 28 72 65 73 73 | 79 6d 20 3a 20 72 65 73 | : (ress|ym : res|
|000004e0| 65 72 76 65 64 77 6f 72 | 64 73 29 29 3b 0d 0a 00 |ervedwor|ds));...|
|000004f0| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 20 20 20 |..... | |
|00000500| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000510| 20 20 20 66 61 6c 73 65 | 20 3a 20 28 68 65 61 64 | false| : (head|
|00000520| 2c 20 74 61 69 6c 20 3a | 20 73 79 6d 62 65 78 70 |, tail :| symbexp|
|00000530| 70 74 72 29 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |ptr)....|.... |
|00000540| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000550| 20 20 20 20 20 65 6e 64 | 3b 0d 0a 00 00 00 00 00 | end|;.......|
|00000560| 00 7b 0d 0a 00 00 00 00 | 00 00 20 20 53 79 6d 62 |.{......|.. Symb|
|00000570| 6f 6c 69 63 65 78 70 72 | 65 73 73 69 6f 6e 20 69 |olicexpr|ession i|
|00000580| 73 20 74 68 65 20 72 65 | 63 6f 72 64 20 73 74 72 |s the re|cord str|
|00000590| 75 63 74 75 72 65 20 75 | 73 65 64 0d 0a 00 00 00 |ucture u|sed.....|
|000005a0| 00 00 00 20 20 74 6f 20 | 69 6d 70 6c 65 6d 65 6e |... to |implemen|
|000005b0| 74 20 61 20 4c 49 53 50 | 20 6c 69 73 74 2e 20 20 |t a LISP| list. |
|000005c0| 54 68 69 73 20 72 65 63 | 6f 72 64 20 68 61 73 20 |This rec|ord has |
|000005d0| 61 20 74 61 67 0d 0a 00 | 00 00 00 00 00 20 20 66 |a tag...|..... f|
|000005e0| 69 65 6c 64 20 27 61 6e | 61 74 6f 6d 27 20 77 68 |ield 'an|atom' wh|
|000005f0| 69 63 68 20 74 65 6c 6c | 73 20 77 68 69 63 68 20 |ich tell|s which |
|00000600| 6b 69 6e 64 20 6f 66 20 | 6e 6f 64 65 0d 0a 00 00 |kind of |node....|
|00000610| 00 00 00 00 20 20 61 20 | 70 61 72 74 69 63 75 6c |.... a |particul|
|00000620| 61 72 20 6e 6f 64 65 20 | 72 65 70 72 65 73 65 6e |ar node |represen|
|00000630| 74 73 20 28 69 2e 65 2e | 20 61 6e 20 61 74 6f 6d |ts (i.e.| an atom|
|00000640| 20 6f 72 0d 0a 00 00 00 | 00 00 00 20 20 61 20 70 | or.....|... a p|
|00000650| 61 69 72 20 6f 66 20 70 | 6f 69 6e 74 65 72 73 20 |air of p|ointers |
|00000660| 27 68 65 61 64 27 20 61 | 6e 64 20 27 74 61 69 6c |'head' a|nd 'tail|
|00000670| 27 29 2e 0d 0a 00 00 00 | 00 00 00 20 20 27 41 6e |')......|... 'An|
|00000680| 61 74 6f 6d 27 20 69 73 | 20 61 6c 77 61 79 73 20 |atom' is| always |
|00000690| 63 68 65 63 6b 65 64 20 | 62 65 66 6f 72 65 20 61 |checked |before a|
|000006a0| 63 63 65 73 73 69 6e 67 | 0d 0a 00 00 00 00 00 00 |ccessing|........|
|000006b0| 20 20 65 69 74 68 65 72 | 20 74 68 65 20 6e 61 6d | either| the nam|
|000006c0| 65 20 66 69 65 6c 64 20 | 6f 72 20 74 68 65 20 68 |e field |or the h|
|000006d0| 65 61 64 20 61 6e 64 20 | 74 61 69 6c 0d 0a 00 00 |ead and |tail....|
|000006e0| 00 00 00 00 20 20 66 69 | 65 6c 64 73 20 6f 66 20 |.... fi|elds of |
|000006f0| 61 20 6e 6f 64 65 2e 20 | 20 54 77 6f 20 70 61 67 |a node. | Two pag|
|00000700| 65 73 20 61 68 65 61 64 | 20 74 68 65 72 65 20 61 |es ahead| there a|
|00000710| 72 65 0d 0a 00 00 00 00 | 00 00 20 20 74 68 72 65 |re......|.. thre|
|00000720| 65 20 64 69 61 67 72 61 | 6d 73 20 77 68 69 63 68 |e diagra|ms which|
|00000730| 20 73 68 6f 75 6c 64 20 | 63 6c 61 72 69 66 79 20 | should |clarify |
|00000740| 74 68 65 20 64 61 74 61 | 0d 0a 00 00 00 00 00 00 |the data|........|
|00000750| 20 20 73 74 72 75 63 74 | 75 72 65 2e 0d 0a 00 00 | struct|ure.....|
|00000760| 00 00 00 00 7d 0d 0a 00 | 00 00 00 00 00 0d 0a 00 |....}...|........|
|00000770| 00 00 00 00 00 7b 20 20 | 20 20 20 20 20 20 20 20 |.....{ | |
|00000780| 20 20 54 20 68 20 65 20 | 20 67 20 6c 20 6f 20 62 | T h e | g l o b|
|00000790| 20 61 20 6c 20 20 76 20 | 61 20 72 20 69 20 61 20 | a l v |a r i a |
|000007a0| 62 20 6c 20 65 20 73 20 | 20 20 20 20 20 20 20 20 |b l e s | |
|000007b0| 20 20 20 20 7d 0d 0a 00 | 00 00 00 00 00 0d 0a 00 | }...|........|
|000007c0| 00 00 00 00 00 76 61 72 | 0d 0a 00 00 00 00 00 00 |.....var|........|
|000007d0| 0d 0a 00 00 00 00 00 00 | 7b 20 20 56 61 72 69 61 |........|{ Varia|
|000007e0| 62 6c 65 73 20 77 68 69 | 63 68 20 70 61 73 73 20 |bles whi|ch pass |
|000007f0| 69 6e 66 6f 72 6d 61 74 | 69 6f 6e 20 66 72 6f 6d |informat|ion from|
|00000800| 20 74 68 65 20 73 63 61 | 6e 6e 65 72 20 74 6f 20 | the sca|nner to |
|00000810| 74 68 65 20 72 65 61 64 | 0d 0a 00 00 00 00 00 00 |the read|........|
|00000820| 20 20 20 20 20 20 72 6f | 75 74 69 6e 65 2e 20 20 | ro|utine. |
|00000830| 7d 0d 0a 00 00 00 00 00 | 00 0d 0a 00 00 00 00 00 |}.......|........|
|00000840| 00 20 20 6c 6f 6f 6b 61 | 68 65 61 64 73 79 6d 2c |. looka|headsym,|
|00000850| 20 7b 20 20 75 73 65 64 | 20 74 6f 20 73 61 76 65 | { used| to save|
|00000860| 20 61 20 73 79 6d 62 6f | 6c 20 77 68 65 6e 20 77 | a symbo|l when w|
|00000870| 65 20 62 61 63 6b 20 75 | 70 20 7d 0d 0a 00 00 00 |e back u|p }.....|
|00000880| 00 00 00 20 20 73 79 6d | 20 3a 20 69 6e 70 75 74 |... sym| : input|
|00000890| 73 79 6d 62 6f 6c 3b 20 | 7b 20 20 74 68 65 20 73 |symbol; |{ the s|
|000008a0| 79 6d 62 6f 6c 20 74 68 | 61 74 20 77 61 73 20 6c |ymbol th|at was l|
|000008b0| 61 73 74 20 73 63 61 6e | 6e 65 64 20 20 7d 0d 0a |ast scan|ned }..|
|000008c0| 00 00 00 00 00 00 20 20 | 69 64 20 20 3a 20 61 6c |...... |id : al|
|000008d0| 66 61 3b 20 20 7b 20 20 | 6e 61 6d 65 20 6f 66 20 |fa; { |name of |
|000008e0| 61 74 6f 6d 20 74 68 61 | 74 20 77 61 73 20 6c 61 |atom tha|t was la|
|000008f0| 73 74 20 72 65 61 64 20 | 20 7d 0d 0a 00 00 00 00 |st read | }......|
|00000900| 00 00 20 20 61 6c 72 65 | 61 64 79 70 65 65 6b 65 |.. alre|adypeeke|
|00000910| 64 20 3a 20 62 6f 6f 6c | 65 61 6e 3b 20 20 7b 20 |d : bool|ean; { |
|00000920| 20 74 65 6c 6c 73 20 27 | 6e 65 78 74 73 79 6d 27 | tells '|nextsym'|
|00000930| 20 77 68 65 74 68 65 72 | 20 77 65 20 68 61 76 65 | whether| we have|
|00000940| 64 20 70 65 65 6b 65 64 | 20 20 7d 0d 0a 00 00 00 |d peeked| }.....|
|00000950| 00 00 00 20 20 63 68 20 | 3a 20 63 68 61 72 3b 20 |... ch |: char; |
|00000960| 20 7b 20 20 74 68 65 20 | 6c 61 73 74 20 63 68 61 | { the |last cha|
|00000970| 72 61 63 74 65 72 20 72 | 65 61 64 20 66 72 6f 6d |racter r|ead from|
|00000980| 20 69 6e 70 75 74 20 20 | 7d 0d 0a 00 00 00 00 00 | input |}.......|
|00000990| 00 20 20 70 74 72 20 3a | 20 73 79 6d 62 65 78 70 |. ptr :| symbexp|
|000009a0| 70 74 72 3b 20 20 7b 20 | 20 74 68 65 20 70 6f 69 |ptr; { | the poi|
|000009b0| 6e 74 65 72 20 74 6f 20 | 65 78 70 72 65 73 73 69 |nter to |expressi|
|000009c0| 6f 6e 20 62 65 69 6e 67 | 20 65 76 61 6c 75 61 74 |on being| evaluat|
|000009d0| 65 64 20 20 7d 0d 0a 00 | 00 00 00 00 00 0d 0a 00 |ed }...|........|
|000009e0| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 20 7b 20 |..... | { |
|000009f0| 20 74 68 65 20 67 6c 6f | 62 61 6c 20 6c 69 73 74 | the glo|bal list|
|00000a00| 73 20 6f 66 20 4c 49 53 | 50 20 6e 6f 64 65 73 20 |s of LIS|P nodes |
|00000a10| 20 7d 0d 0a 00 00 00 00 | 00 00 20 20 66 72 65 65 | }......|.. free|
|00000a20| 6c 69 73 74 2c 20 20 7b | 20 20 70 6f 69 6e 74 65 |list, {| pointe|
|00000a30| 72 20 74 6f 20 74 68 65 | 20 6c 69 6e 65 61 72 20 |r to the| linear |
|00000a40| 6c 69 73 74 20 6f 66 20 | 66 72 65 65 20 6e 6f 64 |list of |free nod|
|00000a50| 65 73 20 20 7d 0d 0a 00 | 00 00 00 00 00 20 20 6e |es }...|..... n|
|00000a60| 6f 64 65 6c 69 73 74 2c | 20 20 7b 20 20 70 6f 69 |odelist,| { poi|
|00000a70| 6e 74 65 72 20 75 73 65 | 64 20 74 6f 20 6d 61 6b |nter use|d to mak|
|00000a80| 65 20 61 20 6c 69 6e 65 | 61 72 20 73 63 61 6e 20 |e a line|ar scan |
|00000a90| 6f 66 20 61 6c 6c 0d 0a | 00 00 00 00 00 00 20 20 |of all..|...... |
|00000aa0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 74 68 | | th|
|00000ab0| 65 20 6e 6f 64 65 73 20 | 64 75 72 69 6e 67 20 67 |e nodes |during g|
|00000ac0| 61 72 62 61 67 65 20 63 | 6f 6c 6c 65 63 74 69 6f |arbage c|ollectio|
|00000ad0| 6e 20 20 20 20 20 20 20 | 7d 0d 0a 00 00 00 00 00 |n |}.......|
|00000ae0| 00 20 20 61 6c 69 73 74 | 20 3a 20 73 79 6d 62 65 |. alist| : symbe|
|00000af0| 78 70 70 74 72 3b 0d 0a | 00 00 00 00 00 00 0d 0a |xpptr;..|........|
|00000b00| 00 00 00 00 00 00 7b 20 | 20 74 77 6f 20 6e 6f 64 |......{ | two nod|
|00000b10| 65 73 20 77 68 69 63 68 | 20 68 61 76 65 20 63 6f |es which| have co|
|00000b20| 6e 73 74 61 6e 74 20 76 | 61 6c 75 65 73 20 20 7d |nstant v|alues }|
|00000b30| 0d 0a 00 00 00 00 00 00 | 20 20 6e 69 6c 6e 6f 64 |........| nilnod|
|00000b40| 65 2c 20 74 6e 6f 64 65 | 20 3a 20 73 79 6d 62 6f |e, tnode| : symbo|
|00000b50| 6c 69 63 65 78 70 72 65 | 73 73 69 6f 6e 3b 0d 0a |licexpre|ssion;..|
|00000b60| 00 00 00 00 00 00 0d 0a | 00 00 00 00 00 00 7b 20 |........|......{ |
|00000b70| 20 76 61 72 69 61 62 6c | 65 73 20 75 73 65 64 20 | variabl|es used |
|00000b80| 74 6f 20 69 64 65 6e 74 | 69 66 79 20 61 74 6f 6d |to ident|ify atom|
|00000b90| 73 20 77 69 74 68 20 70 | 72 65 2d 64 65 66 69 6e |s with p|re-defin|
|00000ba0| 65 64 20 6d 65 61 6e 69 | 6e 67 73 20 20 7d 0d 0a |ed meani|ngs }..|
|00000bb0| 00 00 00 00 00 00 20 20 | 72 65 73 77 6f 72 64 20 |...... |resword |
|00000bc0| 3a 20 72 65 73 65 72 76 | 65 64 77 6f 72 64 73 3b |: reserv|edwords;|
|00000bd0| 0d 0a 00 00 00 00 00 00 | 20 20 72 65 73 65 72 76 |........| reserv|
|00000be0| 65 64 20 3a 20 62 6f 6f | 6c 65 61 6e 3b 0d 0a 00 |ed : boo|lean;...|
|00000bf0| 00 00 00 00 00 20 20 72 | 65 73 77 6f 72 64 73 20 |..... r|eswords |
|00000c00| 3a 20 61 72 72 61 79 20 | 5b 72 65 73 65 72 76 65 |: array |[reserve|
|00000c10| 64 77 6f 72 64 73 5d 20 | 6f 66 20 61 6c 66 61 3b |dwords] |of alfa;|
|00000c20| 0d 0a 00 00 00 00 00 00 | 20 20 66 72 65 65 6e 6f |........| freeno|
|00000c30| 64 65 73 20 3a 20 69 6e | 74 65 67 65 72 3b 20 20 |des : in|teger; |
|00000c40| 7b 20 20 6e 75 6d 62 65 | 72 20 6f 66 20 63 75 72 |{ numbe|r of cur|
|00000c50| 72 65 6e 74 6c 79 20 66 | 72 65 65 20 6e 6f 64 65 |rently f|ree node|
|00000c60| 73 20 6b 6e 6f 77 6e 20 | 20 7d 0d 0a 00 00 00 00 |s known | }......|
|00000c70| 00 00 20 20 6e 75 6d 62 | 65 72 6f 66 67 63 73 20 |.. numb|erofgcs |
|00000c80| 3a 20 69 6e 74 65 67 65 | 72 3b 20 20 7b 20 20 6e |: intege|r; { n|
|00000c90| 75 6d 62 65 72 20 6f 66 | 20 67 61 72 62 61 67 65 |umber of| garbage|
|00000ca0| 20 63 6f 6c 6c 65 63 74 | 69 6f 6e 73 20 6d 61 64 | collect|ions mad|
|00000cb0| 65 20 20 7d 0d 0a 00 00 | 00 00 00 00 0d 0a 00 00 |e }....|........|
|00000cc0| 00 00 00 00 0d 0a 00 00 | 00 00 00 00 0d 0a 00 00 |........|........|
|00000cd0| 00 00 00 00 70 72 6f 63 | 65 64 75 72 65 20 67 61 |....proc|edure ga|
|00000ce0| 72 62 61 67 65 6d 61 6e | 3b 0d 0a 00 00 00 00 00 |rbageman|;.......|
|00000cf0| 00 0d 0a 00 00 00 00 00 | 00 20 20 70 72 6f 63 65 |........|. proce|
|00000d00| 64 75 72 65 20 6d 61 72 | 6b 28 6c 69 73 74 20 3a |dure mar|k(list :|
|00000d10| 20 73 79 6d 62 65 78 70 | 70 74 72 29 3b 0d 0a 00 | symbexp|ptr);...|
|00000d20| 00 00 00 00 00 0d 0a 00 | 00 00 00 00 00 20 20 20 |........|..... |
|00000d30| 20 76 61 72 0d 0a 00 00 | 00 00 00 00 20 20 20 20 | var....|.... |
|00000d40| 20 20 66 61 74 68 65 72 | 2c 20 73 6f 6e 2c 20 63 | father|, son, c|
|00000d50| 75 72 72 65 6e 74 20 3a | 20 73 79 6d 62 65 78 70 |urrent :| symbexp|
|00000d60| 70 74 72 3b 0d 0a 00 00 | 00 00 00 00 0d 0a 00 00 |ptr;....|........|
|00000d70| 00 00 00 00 20 20 20 20 | 62 65 67 69 6e 0d 0a 00 |.... |begin...|
|00000d80| 00 00 00 00 00 20 20 20 | 20 20 20 66 61 74 68 65 |..... | fathe|
|00000d90| 72 20 3a 3d 20 6e 69 6c | 3b 20 20 63 75 72 72 65 |r := nil|; curre|
|00000da0| 6e 74 20 3a 3d 20 6c 69 | 73 74 3b 20 20 73 6f 6e |nt := li|st; son|
|00000db0| 20 3a 3d 20 63 75 72 72 | 65 6e 74 3b 0d 0a 00 00 | := curr|ent;....|
|00000dc0| 00 00 00 00 20 20 20 20 | 20 20 77 68 69 6c 65 20 |.... | while |
|00000dd0| 63 75 72 72 65 6e 74 20 | 3c 3e 20 6e 69 6c 20 64 |current |<> nil d|
|00000de0| 6f 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |o.......|. |
|00000df0| 20 77 69 74 68 20 63 75 | 72 72 65 6e 74 5e 20 64 | with cu|rrent^ d|
|00000e00| 6f 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |o.......|. |
|00000e10| 20 20 20 63 61 73 65 20 | 73 74 61 74 75 73 20 6f | case |status o|
|00000e20| 66 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |f.......|. |
|00000e30| 20 20 20 20 20 75 6e 6d | 61 72 6b 65 64 3a 0d 0a | unm|arked:..|
|00000e40| 00 00 00 00 00 00 20 20 | 20 20 20 20 20 20 20 20 |...... | |
|00000e50| 20 20 20 20 69 66 20 61 | 6e 61 74 6f 6d 20 20 74 | if a|natom t|
|00000e60| 68 65 6e 20 20 73 74 61 | 74 75 73 20 3a 3d 20 6d |hen sta|tus := m|
|00000e70| 61 72 6b 65 64 0d 0a 00 | 00 00 00 00 00 20 20 20 |arked...|..... |
|00000e80| 20 20 20 20 20 20 20 20 | 20 20 20 65 6c 73 65 0d | | else.|
|00000e90| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00000ea0| 20 20 20 20 20 20 20 69 | 66 20 28 68 65 61 64 5e | i|f (head^|
|00000eb0| 2e 73 74 61 74 75 73 20 | 3c 3e 20 75 6e 6d 61 72 |.status |<> unmar|
|00000ec0| 6b 65 64 29 20 6f 72 20 | 28 68 65 61 64 20 3d 20 |ked) or |(head = |
|00000ed0| 63 75 72 72 65 6e 74 29 | 0d 0a 00 00 00 00 00 00 |current)|........|
|00000ee0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000ef0| 74 68 65 6e 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |then....|.... |
|00000f00| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 69 66 | | if|
|00000f10| 20 28 74 61 69 6c 5e 2e | 73 74 61 74 75 73 20 3c | (tail^.|status <|
|00000f20| 3e 20 75 6e 6d 61 72 6b | 65 64 29 20 6f 72 20 28 |> unmark|ed) or (|
|00000f30| 74 61 69 6c 20 3d 20 63 | 75 72 72 65 6e 74 29 0d |tail = c|urrent).|
|00000f40| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00000f50| 20 20 20 20 20 20 20 20 | 20 74 68 65 6e 20 73 74 | | then st|
|00000f60| 61 74 75 73 20 3a 3d 20 | 6d 61 72 6b 65 64 0d 0a |atus := |marked..|
|00000f70| 00 00 00 00 00 00 20 20 | 20 20 20 20 20 20 20 20 |...... | |
|00000f80| 20 20 20 20 20 20 20 20 | 65 6c 73 65 0d 0a 00 00 | |else....|
|00000f90| 00 00 00 00 20 20 20 20 | 20 20 20 20 20 20 20 20 |.... | |
|00000fa0| 20 20 20 20 20 20 20 20 | 62 65 67 69 6e 0d 0a 00 | |begin...|
|00000fb0| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 20 20 20 |..... | |
|00000fc0| 20 20 20 20 20 20 20 20 | 20 20 20 73 74 61 74 75 | | statu|
|00000fd0| 73 20 3a 3d 20 72 69 67 | 68 74 3b 20 20 73 6f 6e |s := rig|ht; son|
|00000fe0| 20 3a 3d 20 74 61 69 6c | 3b 20 20 74 61 69 6c 20 | := tail|; tail |
|00000ff0| 3a 3d 20 66 61 74 68 65 | 72 3b 0d 0a 00 00 00 00 |:= fathe|r;......|
|00001000| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |.. | |
|00001010| 20 20 20 20 20 20 20 20 | 66 61 74 68 65 72 20 3a | |father :|
|00001020| 3d 20 63 75 72 72 65 6e | 74 3b 20 20 63 75 72 72 |= curren|t; curr|
|00001030| 65 6e 74 20 3a 3d 20 73 | 6f 6e 0d 0a 00 00 00 00 |ent := s|on......|
|00001040| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |.. | |
|00001050| 20 20 20 20 20 20 65 6e | 64 0d 0a 00 00 00 00 00 | en|d.......|
|00001060| 00 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |. | |
|00001070| 20 20 20 65 6c 73 65 0d | 0a 00 00 00 00 00 00 20 | else.|....... |
|00001080| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00001090| 20 20 20 62 65 67 69 6e | 0d 0a 00 00 00 00 00 00 | begin|........|
|000010a0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000010b0| 20 20 20 20 20 20 73 74 | 61 74 75 73 20 3a 3d 20 | st|atus := |
|000010c0| 6c 65 66 74 3b 20 20 73 | 6f 6e 20 3a 3d 20 68 65 |left; s|on := he|
|000010d0| 61 64 3b 20 20 68 65 61 | 64 20 3a 3d 20 66 61 74 |ad; hea|d := fat|
|000010e0| 68 65 72 3b 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |her;....|.... |
|000010f0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00001100| 20 20 66 61 74 68 65 72 | 20 3a 3d 20 63 75 72 72 | father| := curr|
|00001110| 65 6e 74 3b 20 20 63 75 | 72 72 65 6e 74 20 3a 3d |ent; cu|rrent :=|
|00001120| 20 73 6f 6e 0d 0a 00 00 | 00 00 00 00 20 20 20 20 | son....|.... |
|00001130| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00001140| 65 6e 64 3b 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |end;....|.... |
|00001150| 20 20 20 20 20 20 20 20 | 6c 65 66 74 3a 0d 0a 00 | |left:...|
|00001160| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 20 20 20 |..... | |
|00001170| 20 20 20 69 66 20 74 61 | 69 6c 5e 2e 73 74 61 74 | if ta|il^.stat|
|00001180| 75 73 20 3c 3e 20 75 6e | 6d 61 72 6b 65 64 0d 0a |us <> un|marked..|
|00001190| 00 00 00 00 00 00 20 20 | 20 20 20 20 20 20 20 20 |...... | |
|000011a0| 20 20 20 20 74 68 65 6e | 0d 0a 00 00 00 00 00 00 | then|........|
|000011b0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000011c0| 62 65 67 69 6e 0d 0a 00 | 00 00 00 00 00 20 20 20 |begin...|..... |
|000011d0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 73 | | s|
|000011e0| 74 61 74 75 73 20 3a 3d | 20 6d 61 72 6b 65 64 3b |tatus :=| marked;|
|000011f0| 20 20 66 61 74 68 65 72 | 20 3a 3d 20 68 65 61 64 | father| := head|
|00001200| 3b 20 20 68 65 61 64 20 | 3a 3d 20 73 6f 6e 3b 0d |; head |:= son;.|
|00001210| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00001220| 20 20 20 20 20 20 20 20 | 20 73 6f 6e 20 3a 3d 20 | | son := |
|00001230| 63 75 72 72 65 6e 74 0d | 0a 00 00 00 00 00 00 20 |current.|....... |
|00001240| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 65 | | e|
|00001250| 6e 64 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |nd......|.. |
|00001260| 20 20 20 20 20 20 20 20 | 65 6c 73 65 0d 0a 00 00 | |else....|
|00001270| 00 00 00 00 20 20 20 20 | 20 20 20 20 20 20 20 20 |.... | |
|00001280| 20 20 20 20 62 65 67 69 | 6e 0d 0a 00 00 00 00 00 | begi|n.......|
|00001290| 00 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |. | |
|000012a0| 20 20 20 73 74 61 74 75 | 73 20 3a 3d 20 72 69 67 | statu|s := rig|
|000012b0| 68 74 3b 20 20 63 75 72 | 72 65 6e 74 20 3a 3d 20 |ht; cur|rent := |
|000012c0| 74 61 69 6c 3b 20 74 61 | 69 6c 20 3a 3d 20 68 65 |tail; ta|il := he|
|000012d0| 61 64 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |ad;.....|... |
|000012e0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 68 65 61 | | hea|
|000012f0| 64 20 3a 3d 20 73 6f 6e | 3b 20 73 6f 6e 20 3a 3d |d := son|; son :=|
|00001300| 20 63 75 72 72 65 6e 74 | 0d 0a 00 00 00 00 00 00 | current|........|
|00001310| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00001320| 65 6e 64 3b 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |end;....|.... |
|00001330| 20 20 20 20 20 20 20 20 | 72 69 67 68 74 3a 0d 0a | |right:..|
|00001340| 00 00 00 00 00 00 20 20 | 20 20 20 20 20 20 20 20 |...... | |
|00001350| 20 20 20 20 62 65 67 69 | 6e 0d 0a 00 00 00 00 00 | begi|n.......|
|00001360| 00 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |. | |
|00001370| 20 73 74 61 74 75 73 20 | 3a 3d 20 6d 61 72 6b 65 | status |:= marke|
|00001380| 64 3b 20 20 66 61 74 68 | 65 72 20 3a 3d 20 74 61 |d; fath|er := ta|
|00001390| 69 6c 3b 20 20 74 61 69 | 6c 20 3a 3d 20 73 6f 6e |il; tai|l := son|
|000013a0| 3b 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |;.......|. |
|000013b0| 20 20 20 20 20 20 20 20 | 20 73 6f 6e 20 3a 3d 20 | | son := |
|000013c0| 63 75 72 72 65 6e 74 0d | 0a 00 00 00 00 00 00 20 |current.|....... |
|000013d0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 65 6e 64 | | end|
|000013e0| 3b 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |;.......|. |
|000013f0| 20 20 20 20 20 6d 61 72 | 6b 65 64 3a 20 20 63 75 | mar|ked: cu|
|00001400| 72 72 65 6e 74 20 3a 3d | 20 66 61 74 68 65 72 0d |rrent :=| father.|
|00001410| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00001420| 20 65 6e 64 20 7b 20 63 | 61 73 65 20 7d 0d 0a 00 | end { c|ase }...|
|00001430| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 65 6e 64 |..... | end|
|00001440| 3b 20 7b 20 6d 61 72 6b | 20 7d 0d 0a 00 00 00 00 |; { mark| }......|
|00001450| 00 00 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |........|.. |
|00001460| 20 20 70 72 6f 63 65 64 | 75 72 65 20 63 6f 6c 6c | proced|ure coll|
|00001470| 65 63 74 66 72 65 65 6e | 6f 64 65 73 3b 0d 0a 00 |ectfreen|odes;...|
|00001480| 00 00 00 00 00 0d 0a 00 | 00 00 00 00 00 20 20 20 |........|..... |
|00001490| 20 20 20 20 20 20 20 76 | 61 72 0d 0a 00 00 00 00 | v|ar......|
|000014a0| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 74 65 |.. | te|
|000014b0| 6d 70 20 3a 20 73 79 6d | 62 65 78 70 70 74 72 3b |mp : sym|bexpptr;|
|000014c0| 0d 0a 00 00 00 00 00 00 | 0d 0a 00 00 00 00 00 00 |........|........|
|000014d0| 20 20 20 20 20 20 20 20 | 20 20 62 65 67 69 6e 0d | | begin.|
|000014e0| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|000014f0| 20 20 20 77 72 69 74 65 | 6c 6e 28 27 20 6e 75 6d | write|ln(' num|
|00001500| 62 65 72 20 6f 66 20 6e | 6f 64 65 73 20 62 65 66 |ber of n|odes bef|
|00001510| 6f 72 65 20 63 6f 6c 6c | 65 63 74 69 6f 6e 20 3d |ore coll|ection =|
|00001520| 20 27 2c 20 66 72 65 65 | 6e 6f 64 65 73 3a 31 0d | ', free|nodes:1.|
|00001530| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00001540| 20 20 20 20 20 20 20 20 | 20 20 20 2c 27 2e 27 29 | | ,'.')|
|00001550| 3b 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |;.......|. |
|00001560| 20 20 20 20 20 66 72 65 | 65 6c 69 73 74 20 3a 3d | fre|elist :=|
|00001570| 20 6e 69 6c 3b 20 20 66 | 72 65 65 6e 6f 64 65 73 | nil; f|reenodes|
|00001580| 20 3a 3d 20 30 3b 20 74 | 65 6d 70 20 3a 3d 20 6e | := 0; t|emp := n|
|00001590| 6f 64 65 6c 69 73 74 3b | 0d 0a 00 00 00 00 00 00 |odelist;|........|
|000015a0| 20 20 20 20 20 20 20 20 | 20 20 20 20 77 68 69 6c | | whil|
|000015b0| 65 20 74 65 6d 70 20 3c | 3e 20 6e 69 6c 20 64 6f |e temp <|> nil do|
|000015c0| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 20 20 |........| |
|000015d0| 20 20 20 20 20 20 62 65 | 67 69 6e 0d 0a 00 00 00 | be|gin.....|
|000015e0| 00 00 00 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |... | |
|000015f0| 20 20 20 69 66 20 74 65 | 6d 70 5e 2e 73 74 61 74 | if te|mp^.stat|
|00001600| 75 73 20 3c 3e 20 75 6e | 6d 61 72 6b 65 64 20 74 |us <> un|marked t|
|00001610| 68 65 6e 20 74 65 6d 70 | 5e 2e 73 74 61 74 75 73 |hen temp|^.status|
|00001620| 20 3a 3d 20 75 6e 6d 61 | 72 6b 65 64 0d 0a 00 00 | := unma|rked....|
|00001630| 00 00 00 00 20 20 20 20 | 20 20 20 20 20 20 20 20 |.... | |
|00001640| 20 20 20 20 65 6c 73 65 | 0d 0a 00 00 00 00 00 00 | else|........|
|00001650| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00001660| 20 20 62 65 67 69 6e 0d | 0a 00 00 00 00 00 00 20 | begin.|....... |
|00001670| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00001680| 20 20 20 66 72 65 65 6e | 6f 64 65 73 20 3a 3d 20 | freen|odes := |
|00001690| 66 72 65 65 6e 6f 64 65 | 73 20 2b 20 31 3b 20 74 |freenode|s + 1; t|
|000016a0| 65 6d 70 5e 2e 68 65 61 | 64 20 3a 3d 20 66 72 65 |emp^.hea|d := fre|
|000016b0| 65 6c 69 73 74 3b 0d 0a | 00 00 00 00 00 00 20 20 |elist;..|...... |
|000016c0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000016d0| 20 20 66 72 65 65 6c 69 | 73 74 20 3a 3d 20 74 65 | freeli|st := te|
|000016e0| 6d 70 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |mp......|.. |
|000016f0| 20 20 20 20 20 20 20 20 | 20 20 20 20 65 6e 64 3b | | end;|
|00001700| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 20 20 |........| |
|00001710| 20 20 20 20 20 20 20 20 | 74 65 6d 70 20 3a 3d 20 | |temp := |
|00001720| 74 65 6d 70 5e 2e 6e 65 | 78 74 0d 0a 00 00 00 00 |temp^.ne|xt......|
|00001730| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |.. | |
|00001740| 65 6e 64 3b 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |end;....|.... |
|00001750| 20 20 20 20 20 20 20 20 | 77 72 69 74 65 6c 6e 28 | |writeln(|
|00001760| 27 20 6e 75 6d 62 65 72 | 20 6f 66 20 66 72 65 65 |' number| of free|
|00001770| 20 6e 6f 64 65 73 20 61 | 66 74 65 72 20 63 6f 6c | nodes a|fter col|
|00001780| 6c 65 63 74 69 6f 6e 20 | 3d 20 27 2c 20 66 72 65 |lection |= ', fre|
|00001790| 65 6e 6f 64 65 73 3a 31 | 2c 0d 0a 00 00 00 00 00 |enodes:1|,.......|
|000017a0| 00 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |. | |
|000017b0| 20 20 20 20 20 27 2e 27 | 29 3b 0d 0a 00 00 00 00 | '.'|);......|
|000017c0| 00 00 20 20 20 20 20 20 | 20 20 20 20 65 6e 64 3b |.. | end;|
|000017d0| 20 20 7b 20 63 6f 6c 6c | 65 63 74 66 72 65 65 6e | { coll|ectfreen|
|000017e0| 6f 64 65 73 20 20 7d 0d | 0a 00 00 00 00 00 00 0d |odes }.|........|
|000017f0| 0a 00 00 00 00 00 00 20 | 20 62 65 67 69 6e 20 20 |....... | begin |
|00001800| 7b 20 67 61 72 62 61 67 | 65 6d 61 6e 20 7d 0d 0a |{ garbag|eman }..|
|00001810| 00 00 00 00 00 00 20 20 | 20 20 6e 75 6d 62 65 72 |...... | number|
|00001820| 6f 66 67 63 73 20 3a 3d | 20 6e 75 6d 62 65 72 6f |ofgcs :=| numbero|
|00001830| 66 67 63 73 20 2b 20 31 | 3b 20 20 77 72 69 74 65 |fgcs + 1|; write|
|00001840| 6c 6e 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 77 |ln;.....|... w|
|00001850| 72 69 74 65 6c 6e 28 27 | 20 67 61 72 62 61 67 65 |riteln('| garbage|
|00001860| 20 63 6f 6c 6c 65 63 74 | 69 6f 6e 2e 20 27 29 3b | collect|ion. ');|
|00001870| 20 77 72 69 74 65 6c 6e | 3b 20 6d 61 72 6b 28 61 | writeln|; mark(a|
|00001880| 6c 69 73 74 29 3b 0d 0a | 00 00 00 00 00 00 20 20 |list);..|...... |
|00001890| 20 20 69 66 20 70 74 72 | 20 3c 3e 20 6e 69 6c 20 | if ptr| <> nil |
|000018a0| 74 68 65 6e 20 6d 61 72 | 6b 28 70 74 72 29 3b 20 |then mar|k(ptr); |
|000018b0| 20 63 6f 6c 6c 65 63 74 | 66 72 65 65 6e 6f 64 65 | collect|freenode|
|000018c0| 73 0d 0a 00 00 00 00 00 | 00 20 20 65 6e 64 3b 20 |s.......|. end; |
|000018d0| 20 7b 20 67 72 61 62 61 | 67 65 6d 61 6e 20 7d 0d | { graba|geman }.|
|000018e0| 0a 00 00 00 00 00 00 0d | 0a 00 00 00 00 00 00 70 |........|.......p|
|000018f0| 72 6f 63 65 64 75 72 65 | 20 70 6f 70 28 76 61 72 |rocedure| pop(var|
|00001900| 20 73 70 74 72 20 3a 20 | 73 79 6d 62 65 78 70 70 | sptr : |symbexpp|
|00001910| 74 72 29 3b 0d 0a 00 00 | 00 00 00 00 0d 0a 00 00 |tr);....|........|
|00001920| 00 00 00 00 20 20 62 65 | 67 69 6e 0d 0a 00 00 00 |.... be|gin.....|
|00001930| 00 00 00 20 20 20 20 69 | 66 20 66 72 65 65 6c 69 |... i|f freeli|
|00001940| 73 74 20 3d 20 6e 69 6c | 20 74 68 65 6e 0d 0a 00 |st = nil| then...|
|00001950| 00 00 00 00 00 20 20 20 | 20 20 20 62 65 67 69 6e |..... | begin|
|00001960| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 20 20 |........| |
|00001970| 77 72 69 74 65 6c 6e 28 | 27 20 6e 6f 74 20 65 6e |writeln(|' not en|
|00001980| 6f 75 67 68 20 73 70 61 | 63 65 20 74 6f 20 65 76 |ough spa|ce to ev|
|00001990| 61 6c 75 61 74 65 20 74 | 68 65 20 65 78 70 72 65 |aluate t|he expre|
|000019a0| 73 73 69 6f 6e 2e 27 29 | 3b 0d 0a 00 00 00 00 00 |ssion.')|;.......|
|000019b0| 00 20 20 20 20 20 20 20 | 20 7b 20 20 67 6f 74 6f |. | { goto|
|000019c0| 20 32 20 7d 0d 0a 00 00 | 00 00 00 00 20 20 20 20 | 2 }....|.... |
|000019d0| 20 20 65 6e 64 3b 0d 0a | 00 00 00 00 00 00 20 20 | end;..|...... |
|000019e0| 20 20 66 72 65 65 6e 6f | 64 65 73 20 3a 3d 20 66 | freeno|des := f|
|000019f0| 72 65 65 6e 6f 64 65 73 | 20 2d 20 31 3b 20 20 73 |reenodes| - 1; s|
|00001a00| 70 74 72 20 3a 3d 20 66 | 72 65 65 6c 69 73 74 3b |ptr := f|reelist;|
|00001a10| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 66 72 65 65 |........| free|
|00001a20| 6c 69 73 74 20 3a 3d 20 | 66 72 65 65 6c 69 73 74 |list := |freelist|
|00001a30| 5e 2e 68 65 61 64 0d 0a | 00 00 00 00 00 00 20 20 |^.head..|...... |
|00001a40| 65 6e 64 3b 20 7b 20 70 | 6f 70 20 7d 0d 0a 00 00 |end; { p|op }....|
|00001a50| 00 00 00 00 0d 0a 00 00 | 00 00 00 00 0d 0a 00 00 |........|........|
|00001a60| 00 00 00 00 7b 20 20 69 | 20 6e 20 70 20 75 20 74 |....{ i| n p u t|
|00001a70| 20 20 2f 20 20 6f 20 75 | 20 74 20 70 20 75 20 74 | / o u| t p u t|
|00001a80| 20 20 75 20 74 20 69 20 | 6c 20 69 20 74 20 79 20 | u t i |l i t y |
|00001a90| 20 72 20 6f 20 75 20 74 | 20 69 20 6e 20 65 20 73 | r o u t| i n e s|
|00001aa0| 20 20 20 7d 0d 0a 00 00 | 00 00 00 00 0d 0a 00 00 | }....|........|
|00001ab0| 00 00 00 00 70 72 6f 63 | 65 64 75 72 65 20 65 72 |....proc|edure er|
|00001ac0| 72 6f 72 28 6e 75 6d 62 | 65 72 73 20 3a 20 69 6e |ror(numb|ers : in|
|00001ad0| 74 65 67 65 72 29 3b 0d | 0a 00 00 00 00 00 00 0d |teger);.|........|
|00001ae0| 0a 00 00 00 00 00 00 20 | 20 62 65 67 69 6e 0d 0a |....... | begin..|
|00001af0| 00 00 00 00 00 00 20 20 | 20 20 77 72 69 74 65 6c |...... | writel|
|00001b00| 6e 3b 20 20 77 72 69 74 | 65 28 27 20 45 72 72 6f |n; writ|e(' Erro|
|00001b10| 72 20 20 20 27 2c 6e 75 | 6d 62 65 72 73 3a 31 2c |r ',nu|mbers:1,|
|00001b20| 27 2c 27 29 3b 0d 0a 00 | 00 00 00 00 00 20 20 20 |',');...|..... |
|00001b30| 20 63 61 73 65 20 6e 75 | 6d 62 65 72 73 20 6f 66 | case nu|mbers of|
|00001b40| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 31 20 |........| 1 |
|00001b50| 3a 20 77 72 69 74 65 6c | 6e 28 27 20 61 74 6f 6d |: writel|n(' atom|
|00001b60| 20 6f 72 20 6c 70 61 72 | 65 6e 20 65 78 70 65 63 | or lpar|en expec|
|00001b70| 74 65 64 20 69 6e 20 74 | 68 65 20 73 2d 65 78 70 |ted in t|he s-exp|
|00001b80| 72 2e 27 29 3b 0d 0a 00 | 00 00 00 00 00 20 20 20 |r.');...|..... |
|00001b90| 20 20 20 32 20 3a 20 77 | 72 69 74 65 6c 6e 28 27 | 2 : w|riteln('|
|00001ba0| 20 61 74 6f 6d 2c 20 6c | 70 61 72 65 6e 2c 20 6f | atom, l|paren, o|
|00001bb0| 72 20 72 70 61 72 65 6e | 20 65 78 70 65 63 74 65 |r rparen| expecte|
|00001bc0| 64 20 69 6e 20 74 68 65 | 20 73 2d 65 78 70 72 2e |d in the| s-expr.|
|00001bd0| 27 29 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |');.....|... |
|00001be0| 20 33 20 3a 20 77 72 69 | 74 65 6c 6e 28 27 20 6c | 3 : wri|teln(' l|
|00001bf0| 61 62 65 6c 20 61 6e 64 | 20 6c 61 6d 62 64 61 20 |abel and| lambda |
|00001c00| 61 72 65 20 6e 6f 74 20 | 6e 61 6d 65 73 20 6f 66 |are not |names of|
|00001c10| 20 66 75 6e 63 74 69 6f | 6e 73 2e 27 29 3b 0d 0a | functio|ns.');..|
|00001c20| 00 00 00 00 00 00 20 20 | 20 20 20 20 34 20 3a 20 |...... | 4 : |
|00001c30| 77 72 69 74 65 6c 6e 28 | 27 20 72 70 61 72 65 6e |writeln(|' rparen|
|00001c40| 20 65 78 70 65 63 74 65 | 64 20 69 6e 20 74 68 65 | expecte|d in the|
|00001c50| 20 73 2d 65 78 70 72 2e | 27 29 3b 0d 0a 00 00 00 | s-expr.|');.....|
|00001c60| 00 00 00 20 20 20 20 20 | 20 35 20 3a 20 77 72 69 |... | 5 : wri|
|00001c70| 74 65 6c 6e 28 27 20 31 | 73 74 20 61 72 67 75 65 |teln(' 1|st argue|
|00001c80| 6d 65 6e 74 20 6f 66 20 | 72 65 70 6c 61 63 65 68 |ment of |replaceh|
|00001c90| 20 69 73 20 61 6e 20 61 | 74 6f 6d 2e 27 29 3b 0d | is an a|tom.');.|
|00001ca0| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 36 20 3a |....... | 6 :|
|00001cb0| 20 77 72 69 74 65 6c 6e | 28 27 20 31 73 74 20 61 | writeln|(' 1st a|
|00001cc0| 72 67 75 65 6d 65 6e 74 | 20 6f 66 20 72 65 70 6c |rguement| of repl|
|00001cd0| 61 63 65 74 20 69 73 20 | 61 6e 20 61 74 6f 6d 2e |acet is |an atom.|
|00001ce0| 27 29 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |');.....|... |
|00001cf0| 20 37 20 3a 20 77 72 69 | 74 65 6c 6e 28 27 20 61 | 7 : wri|teln(' a|
|00001d00| 72 67 75 65 6d 65 6e 74 | 20 6f 66 20 68 65 61 64 |rguement| of head|
|00001d10| 20 69 73 20 61 6e 20 61 | 74 6f 6d 2e 27 29 3b 0d | is an a|tom.');.|
|00001d20| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 38 20 3a |....... | 8 :|
|00001d30| 20 77 72 69 74 65 6c 6e | 28 27 20 61 72 67 75 65 | writeln|(' argue|
|00001d40| 6d 65 6e 74 20 6f 66 20 | 74 61 69 6c 20 69 73 20 |ment of |tail is |
|00001d50| 61 6e 20 61 74 6f 6d 2e | 27 29 3b 0d 0a 00 00 00 |an atom.|');.....|
|00001d60| 00 00 00 20 20 20 20 20 | 20 39 20 3a 20 77 72 69 |... | 9 : wri|
|00001d70| 74 65 6c 6e 28 27 20 31 | 73 74 20 61 72 67 75 65 |teln(' 1|st argue|
|00001d80| 6d 65 6e 74 20 6f 66 20 | 61 70 70 65 6e 64 20 69 |ment of |append i|
|00001d90| 73 20 6e 6f 74 20 61 20 | 6c 69 73 74 2e 27 29 3b |s not a |list.');|
|00001da0| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 31 30 20 |........| 10 |
|00001db0| 3a 20 77 72 69 74 65 6c | 6e 28 27 20 63 6f 6d 6d |: writel|n(' comm|
|00001dc0| 61 20 6f 72 20 72 70 61 | 72 65 6e 20 65 78 70 65 |a or rpa|ren expe|
|00001dd0| 63 74 65 64 20 69 6e 20 | 63 6f 6e 63 61 74 65 6e |cted in |concaten|
|00001de0| 61 74 65 2e 27 29 3b 0d | 0a 00 00 00 00 00 00 20 |ate.');.|....... |
|00001df0| 20 20 20 20 31 31 20 3a | 20 77 72 69 74 65 6c 6e | 11 :| writeln|
|00001e00| 28 27 20 65 6e 64 20 6f | 66 20 66 69 6c 65 20 65 |(' end o|f file e|
|00001e10| 6e 63 6f 75 6e 74 65 72 | 65 64 20 62 65 66 6f 72 |ncounter|ed befor|
|00001e20| 65 20 61 20 22 66 69 6e | 22 20 63 61 72 64 2e 27 |e a "fin|" card.'|
|00001e30| 29 3b 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 31 |);......|.. 1|
|00001e40| 32 20 3a 20 77 72 69 74 | 65 6c 6e 28 27 20 6c 61 |2 : writ|eln(' la|
|00001e50| 6d 62 64 61 20 6f 72 20 | 6c 61 62 65 6c 20 65 78 |mbda or |label ex|
|00001e60| 70 65 63 74 65 64 2e 27 | 29 0d 0a 00 00 00 00 00 |pected.'|).......|
|00001e70| 00 20 20 20 65 6e 64 3b | 20 20 7b 20 63 61 73 65 |. end;| { case|
|00001e80| 20 7d 0d 0a 00 00 00 00 | 00 00 20 20 20 69 66 20 | }......|.. if |
|00001e90| 6e 75 6d 62 65 72 73 20 | 69 6e 20 5b 31 31 5d 20 |numbers |in [11] |
|00001ea0| 74 68 65 6e 20 67 6f 74 | 6f 20 32 0d 0a 00 00 00 |then got|o 2.....|
|00001eb0| 00 00 00 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |... | |
|00001ec0| 20 20 20 20 20 20 20 20 | 65 6c 73 65 20 67 6f 74 | |else got|
|00001ed0| 6f 20 31 0d 0a 00 00 00 | 00 00 00 20 20 65 6e 64 |o 1.....|... end|
|00001ee0| 3b 20 20 7b 20 65 72 72 | 6f 72 20 7d 0d 0a 00 00 |; { err|or }....|
|00001ef0| 00 00 00 00 0d 0a 00 00 | 00 00 00 00 7b 0d 0a 00 |........|....{...|
|00001f00| 00 00 00 00 00 20 20 70 | 72 6f 63 65 64 75 72 65 |..... p|rocedure|
|00001f10| 20 62 61 63 6b 75 70 69 | 6e 70 75 74 20 70 75 74 | backupi|nput put|
|00001f20| 73 20 61 20 6c 65 66 74 | 20 70 61 72 65 6e 74 68 |s a left| parenth|
|00001f30| 65 73 69 73 0d 0a 00 00 | 00 00 00 00 20 20 69 6e |esis....|.... in|
|00001f40| 74 6f 20 74 68 65 20 73 | 74 72 65 61 6d 20 6f 66 |to the s|tream of|
|00001f50| 20 69 6e 70 75 74 20 73 | 79 6d 62 6f 6c 73 2e 20 | input s|ymbols. |
|00001f60| 20 74 68 69 73 20 6d 61 | 6b 65 73 0d 0a 00 00 00 | this ma|kes.....|
|00001f70| 00 00 00 20 20 70 72 6f | 63 65 64 75 72 65 20 72 |... pro|cedure r|
|00001f80| 65 61 64 65 78 70 72 20 | 65 61 73 69 65 72 20 74 |eadexpr |easier t|
|00001f90| 68 61 6e 20 69 74 20 6f | 74 68 65 72 77 69 73 65 |han it o|therwise|
|00001fa0| 0d 0a 00 00 00 00 00 00 | 20 20 77 6f 75 6c 64 20 |........| would |
|00001fb0| 62 65 2e 0d 0a 00 00 00 | 00 00 00 7d 0d 0a 00 00 |be......|...}....|
|00001fc0| 00 00 00 00 0d 0a 00 00 | 00 00 00 00 70 72 6f 63 |........|....proc|
|00001fd0| 65 64 75 72 65 20 62 61 | 63 6b 75 70 69 6e 70 75 |edure ba|ckupinpu|
|00001fe0| 74 3b 0d 0a 00 00 00 00 | 00 00 0d 0a 00 00 00 00 |t;......|........|
|00001ff0| 00 00 20 20 62 65 67 69 | 6e 0d 0a 00 00 00 00 00 |.. begi|n.......|
|00002000| 00 20 20 20 20 61 6c 72 | 65 61 64 79 70 65 65 6b |. alr|eadypeek|
|00002010| 65 64 20 3a 3d 20 74 72 | 75 65 3b 20 20 6c 6f 6f |ed := tr|ue; loo|
|00002020| 6b 61 68 65 61 64 73 79 | 6d 20 3a 3d 20 73 79 6d |kaheadsy|m := sym|
|00002030| 3b 20 20 73 79 6d 20 3a | 3d 20 6c 70 61 72 65 6e |; sym :|= lparen|
|00002040| 0d 0a 00 00 00 00 00 00 | 20 20 65 6e 64 3b 20 20 |........| end; |
|00002050| 7b 20 62 61 63 6b 75 70 | 69 6e 70 75 74 20 7d 0d |{ backup|input }.|
|00002060| 0a 00 00 00 00 00 00 0d | 0a 00 00 00 00 00 00 70 |........|.......p|
|00002070| 72 6f 63 65 64 75 72 65 | 20 6e 65 78 74 73 79 6d |rocedure| nextsym|
|00002080| 3b 0d 0a 00 00 00 00 00 | 00 0d 0a 00 00 00 00 00 |;.......|........|
|00002090| 00 20 20 76 61 72 0d 0a | 00 00 00 00 00 00 20 20 |. var..|...... |
|000020a0| 20 20 69 20 3a 20 69 6e | 74 65 67 65 72 3b 0d 0a | i : in|teger;..|
|000020b0| 00 00 00 00 00 00 0d 0a | 00 00 00 00 00 00 20 20 |........|...... |
|000020c0| 62 65 67 69 6e 0d 0a 00 | 00 00 00 00 00 20 20 20 |begin...|..... |
|000020d0| 20 69 66 20 61 6c 72 65 | 61 64 79 70 65 65 6b 65 | if alre|adypeeke|
|000020e0| 64 0d 0a 00 00 00 00 00 | 00 20 20 20 20 74 68 65 |d.......|. the|
|000020f0| 6e 20 62 65 67 69 6e 20 | 20 73 79 6d 20 3a 3d 20 |n begin | sym := |
|00002100| 6c 6f 6f 6b 61 68 65 61 | 64 73 79 6d 3b 20 20 61 |lookahea|dsym; a|
|00002110| 6c 72 65 61 64 79 70 65 | 65 6b 65 64 20 3a 3d 20 |lreadype|eked := |
|00002120| 66 61 6c 73 65 20 65 6e | 64 0d 0a 00 00 00 00 00 |false en|d.......|
|00002130| 00 20 20 20 20 65 6c 73 | 65 0d 0a 00 00 00 00 00 |. els|e.......|
|00002140| 00 20 20 20 20 20 20 62 | 65 67 69 6e 0d 0a 00 00 |. b|egin....|
|00002150| 00 00 00 00 20 20 20 20 | 20 20 20 20 77 68 69 6c |.... | whil|
|00002160| 65 20 63 68 20 3d 20 27 | 20 27 20 64 6f 0d 0a 00 |e ch = '| ' do...|
|00002170| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 20 20 62 |..... | b|
|00002180| 65 67 69 6e 20 69 66 20 | 65 6f 6c 6e 20 74 68 65 |egin if |eoln the|
|00002190| 6e 20 77 72 69 74 65 6c | 6e 3b 20 72 65 61 64 28 |n writel|n; read(|
|000021a0| 63 68 29 3b 20 20 28 2a | 20 77 72 69 74 65 28 63 |ch); (*| write(c|
|000021b0| 68 29 3b 20 2a 29 0d 0a | 00 00 00 00 00 00 20 20 |h); *)..|...... |
|000021c0| 20 20 20 20 20 20 20 20 | 65 6e 64 3b 0d 0a 00 00 | |end;....|
|000021d0| 00 00 00 00 20 20 20 20 | 20 20 20 20 69 66 20 63 |.... | if c|
|000021e0| 68 20 69 6e 20 5b 27 28 | 27 2c 27 2e 27 2c 27 29 |h in ['(|','.',')|
|000021f0| 27 5d 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |']......|.. |
|00002200| 20 20 74 68 65 6e 0d 0a | 00 00 00 00 00 00 20 20 | then..|...... |
|00002210| 20 20 20 20 20 20 20 20 | 62 65 67 69 6e 0d 0a 00 | |begin...|
|00002220| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 20 20 20 |..... | |
|00002230| 20 63 61 73 65 20 63 68 | 20 6f 66 0d 0a 00 00 00 | case ch| of.....|
|00002240| 00 00 00 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |... | |
|00002250| 27 28 27 20 3a 20 73 79 | 6d 20 3a 3d 20 6c 70 61 |'(' : sy|m := lpa|
|00002260| 72 65 6e 3b 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |ren;....|.... |
|00002270| 20 20 20 20 20 20 20 20 | 20 27 2e 27 20 3a 20 73 | | '.' : s|
|00002280| 79 6d 20 3a 3d 20 70 65 | 72 69 6f 64 3b 0d 0a 00 |ym := pe|riod;...|
|00002290| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 20 20 20 |..... | |
|000022a0| 20 20 27 29 27 20 3a 20 | 73 79 6d 20 3a 3d 20 72 | ')' : |sym := r|
|000022b0| 70 61 72 65 6e 0d 0a 00 | 00 00 00 00 00 20 20 20 |paren...|..... |
|000022c0| 20 20 20 20 20 20 20 20 | 20 65 6e 64 3b 20 7b 20 | | end; { |
|000022d0| 63 61 73 65 20 7d 0d 0a | 00 00 00 00 00 00 20 20 |case }..|...... |
|000022e0| 20 20 20 20 20 20 20 20 | 20 20 69 66 20 65 6f 6c | | if eol|
|000022f0| 6e 20 74 68 65 6e 20 77 | 72 69 74 65 6c 6e 3b 20 |n then w|riteln; |
|00002300| 20 72 65 61 64 28 63 68 | 29 20 20 28 2a 20 77 72 | read(ch|) (* wr|
|00002310| 69 74 65 28 63 68 29 20 | 2a 29 0d 0a 00 00 00 00 |ite(ch) |*)......|
|00002320| 00 00 20 20 20 20 20 20 | 20 20 20 20 65 6e 64 0d |.. | end.|
|00002330| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 65 |....... | e|
|00002340| 6c 73 65 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |lse.....|... |
|00002350| 20 20 20 20 20 62 65 67 | 69 6e 0d 0a 00 00 00 00 | beg|in......|
|00002360| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 73 79 |.. | sy|
|00002370| 6d 20 3a 3d 20 61 74 6f | 6d 3b 20 20 69 64 20 3a |m := ato|m; id :|
|00002380| 3d 20 27 20 20 20 20 20 | 20 20 20 20 20 27 3b 20 |= ' | '; |
|00002390| 69 20 3a 3d 20 30 3b 0d | 0a 00 00 00 00 00 00 20 |i := 0;.|....... |
|000023a0| 20 20 20 20 20 20 20 20 | 20 20 20 72 65 70 65 61 | | repea|
|000023b0| 74 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |t.......|. |
|000023c0| 20 20 20 20 20 20 20 69 | 20 3a 3d 20 69 20 2b 20 | i| := i + |
|000023d0| 31 3b 20 20 69 66 20 69 | 20 3c 20 31 31 20 74 68 |1; if i| < 11 th|
|000023e0| 65 6e 20 69 64 5b 69 5d | 20 3a 3d 20 63 68 3b 0d |en id[i]| := ch;.|
|000023f0| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00002400| 20 20 20 20 20 69 66 20 | 65 6f 6c 6e 20 74 68 65 | if |eoln the|
|00002410| 6e 20 77 72 69 74 65 6c | 6e 3b 20 72 65 61 64 28 |n writel|n; read(|
|00002420| 63 68 29 20 20 20 28 2a | 20 77 72 69 74 65 28 63 |ch) (*| write(c|
|00002430| 68 29 20 2a 29 0d 0a 00 | 00 00 00 00 00 20 20 20 |h) *)...|..... |
|00002440| 20 20 20 20 20 20 20 20 | 20 75 6e 74 69 6c 20 63 | | until c|
|00002450| 68 20 69 6e 20 5b 27 20 | 27 2c 20 27 28 27 2c 20 |h in [' |', '(', |
|00002460| 27 2e 27 2c 20 27 29 27 | 5d 3b 0d 0a 00 00 00 00 |'.', ')'|];......|
|00002470| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 72 65 |.. | re|
|00002480| 73 77 6f 72 64 20 3a 3d | 20 72 65 70 6c 61 63 65 |sword :=| replace|
|00002490| 68 73 79 6d 3b 0d 0a 00 | 00 00 00 00 00 20 20 20 |hsym;...|..... |
|000024a0| 20 20 20 20 20 20 20 20 | 20 77 68 69 6c 65 20 28 | | while (|
|000024b0| 69 64 20 3c 3e 20 72 65 | 73 77 6f 72 64 73 5b 72 |id <> re|swords[r|
|000024c0| 65 73 77 6f 72 64 5d 29 | 20 61 6e 64 20 28 72 65 |esword])| and (re|
|000024d0| 73 77 6f 72 64 20 3c 3e | 20 63 6f 6e 73 73 79 6d |sword <>| conssym|
|000024e0| 29 20 64 6f 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |) do....|.... |
|000024f0| 20 20 20 20 20 20 20 20 | 20 20 72 65 73 77 6f 72 | | reswor|
|00002500| 64 20 3a 3d 20 73 75 63 | 63 28 72 65 73 77 6f 72 |d := suc|c(reswor|
|00002510| 64 29 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |d);.....|... |
|00002520| 20 20 20 20 20 20 20 72 | 65 73 65 72 76 65 64 20 | r|eserved |
|00002530| 3a 3d 20 69 64 20 3d 20 | 72 65 73 77 6f 72 64 73 |:= id = |reswords|
|00002540| 5b 72 65 73 77 6f 72 64 | 5d 0d 0a 00 00 00 00 00 |[resword|].......|
|00002550| 00 20 20 20 20 20 20 20 | 20 20 20 65 6e 64 0d 0a |. | end..|
|00002560| 00 00 00 00 00 00 20 20 | 20 20 20 20 20 20 65 6e |...... | en|
|00002570| 64 0d 0a 00 00 00 00 00 | 00 20 20 65 6e 64 3b 20 |d.......|. end; |
|00002580| 20 7b 20 6e 65 78 74 73 | 79 6d 20 7d 0d 0a 00 00 | { nexts|ym }....|
|00002590| 00 00 00 00 0d 0a 00 00 | 00 00 00 00 70 72 6f 63 |........|....proc|
|000025a0| 65 64 75 72 65 20 72 65 | 61 64 65 78 70 72 28 76 |edure re|adexpr(v|
|000025b0| 61 72 20 73 70 74 72 20 | 3a 20 73 79 6d 62 65 78 |ar sptr |: symbex|
|000025c0| 70 70 74 72 29 3b 0d 0a | 00 00 00 00 00 00 0d 0a |pptr);..|........|
|000025d0| 00 00 00 00 00 00 20 20 | 76 61 72 0d 0a 00 00 00 |...... |var.....|
|000025e0| 00 00 00 20 20 20 20 6e | 78 74 20 3a 20 73 79 6d |... n|xt : sym|
|000025f0| 62 65 78 70 70 74 72 3b | 0d 0a 00 00 00 00 00 00 |bexpptr;|........|
|00002600| 0d 0a 00 00 00 00 00 00 | 20 20 62 65 67 69 6e 0d |........| begin.|
|00002610| 0a 00 00 00 00 00 00 20 | 20 20 20 70 6f 70 28 73 |....... | pop(s|
|00002620| 70 74 72 29 3b 20 6e 78 | 74 20 3a 3d 20 73 70 74 |ptr); nx|t := spt|
|00002630| 72 5e 2e 6e 65 78 74 3b | 0d 0a 00 00 00 00 00 00 |r^.next;|........|
|00002640| 20 20 20 20 63 61 73 65 | 20 73 79 6d 20 6f 66 0d | case| sym of.|
|00002650| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 72 70 61 |....... | rpa|
|00002660| 72 65 6e 2c 20 70 65 72 | 69 6f 64 20 3a 20 65 72 |ren, per|iod : er|
|00002670| 72 6f 72 28 31 29 3b 0d | 0a 00 00 00 00 00 00 20 |ror(1);.|....... |
|00002680| 20 20 20 20 20 61 74 6f | 6d 20 3a 0d 0a 00 00 00 | ato|m :.....|
|00002690| 00 00 00 20 20 20 20 20 | 20 20 20 77 69 74 68 20 |... | with |
|000026a0| 73 70 74 72 5e 20 64 6f | 0d 0a 00 00 00 00 00 00 |sptr^ do|........|
|000026b0| 20 20 20 20 20 20 20 20 | 20 20 62 65 67 69 6e 20 | | begin |
|000026c0| 20 7b 20 3c 61 74 6f 6d | 3e 20 7d 0d 0a 00 00 00 | { <atom|> }.....|
|000026d0| 00 00 00 20 20 20 20 20 | 20 20 20 20 20 20 20 61 |... | a|
|000026e0| 6e 61 74 6f 6d 20 3a 3d | 20 74 72 75 65 3b 20 20 |natom :=| true; |
|000026f0| 6e 61 6d 65 20 3a 3d 20 | 69 64 3b 20 20 69 73 61 |name := |id; isa|
|00002700| 72 65 73 65 72 76 65 64 | 77 6f 72 64 20 3a 3d 20 |reserved|word := |
|00002710| 72 65 73 65 72 76 65 64 | 3b 0d 0a 00 00 00 00 00 |reserved|;.......|
|00002720| 00 20 20 20 20 20 20 20 | 20 20 20 20 20 69 66 20 |. | if |
|00002730| 72 65 73 65 72 76 65 64 | 20 74 68 65 6e 20 72 65 |reserved| then re|
|00002740| 73 73 79 6d 20 3a 3d 20 | 72 65 73 77 6f 72 64 0d |ssym := |resword.|
|00002750| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00002760| 20 65 6e 64 3b 0d 0a 00 | 00 00 00 00 00 20 20 20 | end;...|..... |
|00002770| 20 20 20 6c 70 61 72 65 | 6e 20 3a 0d 0a 00 00 00 | lpare|n :.....|
|00002780| 00 00 00 20 20 20 20 20 | 20 20 20 77 69 74 68 20 |... | with |
|00002790| 73 70 74 72 5e 20 64 6f | 0d 0a 00 00 00 00 00 00 |sptr^ do|........|
|000027a0| 20 20 20 20 20 20 20 20 | 20 20 62 65 67 69 6e 0d | | begin.|
|000027b0| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|000027c0| 20 20 20 6e 65 78 74 73 | 79 6d 3b 0d 0a 00 00 00 | nexts|ym;.....|
|000027d0| 00 00 00 20 20 20 20 20 | 20 20 20 20 20 20 20 69 |... | i|
|000027e0| 66 20 73 79 6d 20 3d 20 | 70 65 72 69 6f 64 20 74 |f sym = |period t|
|000027f0| 68 65 6e 20 65 72 72 6f | 72 28 32 29 0d 0a 00 00 |hen erro|r(2)....|
|00002800| 00 00 00 00 20 20 20 20 | 20 20 20 20 20 20 20 20 |.... | |
|00002810| 65 6c 73 65 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |else....|.... |
|00002820| 20 20 20 20 20 20 20 20 | 20 20 69 66 20 73 79 6d | | if sym|
|00002830| 20 3d 20 72 70 61 72 65 | 6e 20 74 68 65 6e 20 73 | = rpare|n then s|
|00002840| 70 74 72 5e 20 3a 3d 20 | 6e 69 6c 6e 6f 64 65 20 |ptr^ := |nilnode |
|00002850| 20 7b 20 20 28 29 20 3d | 20 6e 69 6c 20 7d 0d 0a | { () =| nil }..|
|00002860| 00 00 00 00 00 00 20 20 | 20 20 20 20 20 20 20 20 |...... | |
|00002870| 20 20 20 20 65 6c 73 65 | 0d 0a 00 00 00 00 00 00 | else|........|
|00002880| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00002890| 62 65 67 69 6e 0d 0a 00 | 00 00 00 00 00 20 20 20 |begin...|..... |
|000028a0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 61 | | a|
|000028b0| 6e 61 74 6f 6d 20 3a 3d | 20 66 61 6c 73 65 3b 20 |natom :=| false; |
|000028c0| 20 72 65 61 64 65 78 70 | 72 28 68 65 61 64 29 3b | readexp|r(head);|
|000028d0| 20 20 6e 65 78 74 73 79 | 6d 3b 0d 0a 00 00 00 00 | nextsy|m;......|
|000028e0| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |.. | |
|000028f0| 20 20 20 20 69 66 20 73 | 79 6d 20 3d 20 70 65 72 | if s|ym = per|
|00002900| 69 6f 64 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |iod.....|... |
|00002910| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 74 68 65 | | the|
|00002920| 6e 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |n.......|. |
|00002930| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 62 65 67 | | beg|
|00002940| 69 6e 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |in......|.. |
|00002950| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00002960| 6e 65 78 74 73 79 6d 3b | 20 20 72 65 61 64 65 78 |nextsym;| readex|
|00002970| 70 72 28 74 61 69 6c 29 | 3b 20 20 6e 65 78 74 73 |pr(tail)|; nexts|
|00002980| 79 6d 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |ym;.....|... |
|00002990| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000029a0| 20 69 66 20 73 79 6d 20 | 3c 3e 20 72 70 61 72 65 | if sym |<> rpare|
|000029b0| 6e 20 74 68 65 6e 20 65 | 72 72 6f 72 28 34 29 0d |n then e|rror(4).|
|000029c0| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|000029d0| 20 20 20 20 20 20 20 20 | 20 20 20 65 6e 64 0d 0a | | end..|
|000029e0| 00 00 00 00 00 00 20 20 | 20 20 20 20 20 20 20 20 |...... | |
|000029f0| 20 20 20 20 20 20 20 20 | 65 6c 73 65 0d 0a 00 00 | |else....|
|00002a00| 00 00 00 00 20 20 20 20 | 20 20 20 20 20 20 20 20 |.... | |
|00002a10| 20 20 20 20 20 20 20 20 | 62 65 67 69 6e 20 20 7b | |begin {|
|00002a20| 20 20 28 3c 73 2d 65 78 | 70 72 3e 20 3c 73 2d 65 | (<s-ex|pr> <s-e|
|00002a30| 78 70 72 3e 20 2e 2e 2e | 20 3c 73 2d 65 78 70 72 |xpr> ...| <s-expr|
|00002a40| 3e 20 29 20 20 7d 0d 0a | 00 00 00 00 00 00 20 20 |> ) }..|...... |
|00002a50| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00002a60| 20 20 20 20 62 61 63 6b | 75 70 69 6e 70 75 74 3b | back|upinput;|
|00002a70| 20 20 72 65 61 64 65 78 | 70 72 28 74 61 69 6c 29 | readex|pr(tail)|
|00002a80| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 20 20 |........| |
|00002a90| 20 20 20 20 20 20 20 20 | 20 20 20 20 65 6e 64 0d | | end.|
|00002aa0| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00002ab0| 20 20 20 20 20 20 20 20 | 65 6e 64 0d 0a 00 00 00 | |end.....|
|00002ac0| 00 00 00 20 20 20 20 20 | 20 20 20 20 20 65 6e 64 |... | end|
|00002ad0| 20 7b 20 77 69 74 68 20 | 7d 0d 0a 00 00 00 00 00 | { with |}.......|
|00002ae0| 00 20 20 20 20 20 20 20 | 65 6e 64 3b 20 20 7b 20 |. |end; { |
|00002af0| 63 61 73 65 20 7d 0d 0a | 00 00 00 00 00 00 20 20 |case }..|...... |
|00002b00| 20 20 20 20 20 73 70 74 | 72 5e 2e 6e 65 78 74 20 | spt|r^.next |
|00002b10| 3a 3d 20 6e 78 74 0d 0a | 00 00 00 00 00 00 20 20 |:= nxt..|...... |
|00002b20| 65 6e 64 3b 20 7b 20 72 | 65 61 64 65 78 70 72 20 |end; { r|eadexpr |
|00002b30| 7d 0d 0a 00 00 00 00 00 | 00 0d 0a 00 00 00 00 00 |}.......|........|
|00002b40| 00 70 72 6f 63 65 64 75 | 72 65 20 70 72 69 6e 74 |.procedu|re print|
|00002b50| 6e 61 6d 65 28 6e 61 6d | 65 20 3a 20 61 6c 66 61 |name(nam|e : alfa|
|00002b60| 29 3b 0d 0a 00 00 00 00 | 00 00 7b 0d 0a 00 00 00 |);......|..{.....|
|00002b70| 00 00 00 20 20 70 72 6f | 63 65 64 75 72 65 20 70 |... pro|cedure p|
|00002b80| 72 69 6e 74 6e 61 6d 65 | 20 70 72 69 6e 74 73 20 |rintname| prints |
|00002b90| 74 68 65 20 6e 61 6d 65 | 20 6f 66 0d 0a 00 00 00 |the name| of.....|
|00002ba0| 00 00 00 20 20 61 6e 20 | 61 74 6f 6d 20 77 69 74 |... an |atom wit|
|00002bb0| 68 20 6f 6e 65 20 74 72 | 61 69 6c 69 6e 67 20 62 |h one tr|ailing b|
|00002bc0| 6c 61 6e 6b 2e 0d 0a 00 | 00 00 00 00 00 7d 0d 0a |lank....|.....}..|
|00002bd0| 00 00 00 00 00 00 0d 0a | 00 00 00 00 00 00 76 61 |........|......va|
|00002be0| 72 0d 0a 00 00 00 00 00 | 00 20 20 69 20 3a 20 69 |r.......|. i : i|
|00002bf0| 6e 74 65 67 65 72 3b 0d | 0a 00 00 00 00 00 00 0d |nteger;.|........|
|00002c00| 0a 00 00 00 00 00 00 62 | 65 67 69 6e 0d 0a 00 00 |.......b|egin....|
|00002c10| 00 00 00 00 20 20 69 20 | 3a 3d 20 31 3b 0d 0a 00 |.... i |:= 1;...|
|00002c20| 00 00 00 00 00 20 20 72 | 65 70 65 61 74 0d 0a 00 |..... r|epeat...|
|00002c30| 00 00 00 00 00 20 20 20 | 20 77 72 69 74 65 28 6e |..... | write(n|
|00002c40| 61 6d 65 5b 69 5d 29 3b | 0d 0a 00 00 00 00 00 00 |ame[i]);|........|
|00002c50| 20 20 20 20 69 20 3a 3d | 20 69 20 2b 20 31 3b 0d | i :=| i + 1;.|
|00002c60| 0a 00 00 00 00 00 00 20 | 20 75 6e 74 69 6c 20 28 |....... | until (|
|00002c70| 6e 61 6d 65 5b 69 5d 20 | 3d 20 27 20 27 29 20 6f |name[i] |= ' ') o|
|00002c80| 72 20 28 69 20 3d 20 31 | 31 29 3b 0d 0a 00 00 00 |r (i = 1|1);.....|
|00002c90| 00 00 00 20 20 77 72 69 | 74 65 28 27 20 27 29 0d |... wri|te(' ').|
|00002ca0| 0a 00 00 00 00 00 00 65 | 6e 64 3b 20 7b 20 70 72 |.......e|nd; { pr|
|00002cb0| 69 6e 74 6e 61 6d 65 20 | 7d 0d 0a 00 00 00 00 00 |intname |}.......|
|00002cc0| 00 0d 0a 00 00 00 00 00 | 00 70 72 6f 63 65 64 75 |........|.procedu|
|00002cd0| 72 65 20 70 72 69 6e 74 | 65 78 70 72 28 73 70 74 |re print|expr(spt|
|00002ce0| 72 20 3a 20 73 79 6d 62 | 65 78 70 70 74 72 29 3b |r : symb|expptr);|
|00002cf0| 0d 0a 00 00 00 00 00 00 | 7b 0d 0a 00 00 00 00 00 |........|{.......|
|00002d00| 00 20 20 54 68 65 20 61 | 6c 67 6f 72 69 74 68 6d |. The a|lgorithm|
|00002d10| 20 66 6f 72 20 74 68 69 | 73 20 70 72 6f 63 65 64 | for thi|s proced|
|00002d20| 75 72 65 20 77 61 73 20 | 70 72 6f 76 69 64 65 64 |ure was |provided|
|00002d30| 20 62 79 0d 0a 00 00 00 | 00 00 00 20 20 57 65 69 | by.....|... Wei|
|00002d40| 73 73 6d 61 6e 27 73 20 | 4c 49 53 50 20 31 2e 35 |ssman's |LISP 1.5|
|00002d50| 20 70 72 69 6d 65 72 2c | 20 70 20 31 32 35 2e 20 | primer,| p 125. |
|00002d60| 20 54 68 69 73 20 70 72 | 6f 63 65 64 75 72 65 0d | This pr|ocedure.|
|00002d70| 0a 00 00 00 00 00 00 20 | 20 70 72 69 6e 74 73 20 |....... | prints |
|00002d80| 74 68 65 20 73 79 6d 62 | 6f 6c 69 63 20 65 78 70 |the symb|olic exp|
|00002d90| 72 65 73 73 69 6f 6e 20 | 70 6f 69 6e 74 65 64 20 |ression |pointed |
|00002da0| 74 6f 20 62 79 20 74 68 | 65 0d 0a 00 00 00 00 00 |to by th|e.......|
|00002db0| 00 20 20 61 72 67 75 6d | 65 6e 74 20 27 73 70 74 |. argum|ent 'spt|
|00002dc0| 72 27 20 69 6e 20 74 68 | 65 20 4c 49 53 50 20 6c |r' in th|e LISP l|
|00002dd0| 69 73 74 20 6e 6f 74 61 | 74 69 6f 6e 2e 0d 0a 00 |ist nota|tion....|
|00002de0| 00 00 00 00 00 7d 0d 0a | 00 00 00 00 00 00 0d 0a |.....}..|........|
|00002df0| 00 00 00 00 00 00 6c 61 | 62 65 6c 0d 0a 00 00 00 |......la|bel.....|
|00002e00| 00 00 00 20 20 31 3b 0d | 0a 00 00 00 00 00 00 0d |... 1;.|........|
|00002e10| 0a 00 00 00 00 00 00 62 | 65 67 69 6e 0d 0a 00 00 |.......b|egin....|
|00002e20| 00 00 00 00 20 20 69 66 | 20 73 70 74 72 5e 2e 61 |.... if| sptr^.a|
|00002e30| 6e 61 74 6f 6d 20 74 68 | 65 6e 20 70 72 69 6e 74 |natom th|en print|
|00002e40| 6e 61 6d 65 28 73 70 74 | 72 5e 2e 6e 61 6d 65 29 |name(spt|r^.name)|
|00002e50| 0d 0a 00 00 00 00 00 00 | 20 20 65 6c 73 65 0d 0a |........| else..|
|00002e60| 00 00 00 00 00 00 20 20 | 20 20 62 65 67 69 6e 0d |...... | begin.|
|00002e70| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 77 72 69 |....... | wri|
|00002e80| 74 65 28 27 28 27 29 3b | 0d 0a 00 00 00 00 00 00 |te('(');|........|
|00002e90| 20 20 20 20 31 3a 20 77 | 69 74 68 20 73 70 74 72 | 1: w|ith sptr|
|00002ea0| 5e 20 64 6f 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |^ do....|.... |
|00002eb0| 20 20 20 20 20 62 65 67 | 69 6e 0d 0a 00 00 00 00 | beg|in......|
|00002ec0| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 70 72 69 |.. | pri|
|00002ed0| 6e 74 65 78 70 72 28 68 | 65 61 64 29 3b 0d 0a 00 |ntexpr(h|ead);...|
|00002ee0| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 20 20 20 |..... | |
|00002ef0| 69 66 20 74 61 69 6c 5e | 2e 61 6e 61 74 6f 6d 20 |if tail^|.anatom |
|00002f00| 61 6e 64 20 28 74 61 69 | 6c 5e 2e 6e 61 6d 65 20 |and (tai|l^.name |
|00002f10| 3d 20 27 4e 49 4c 20 20 | 20 20 20 20 20 27 29 0d |= 'NIL | ').|
|00002f20| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00002f30| 20 20 74 68 65 6e 20 77 | 72 69 74 65 28 27 29 27 | then w|rite(')'|
|00002f40| 29 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |).......|. |
|00002f50| 20 20 20 20 65 6c 73 65 | 0d 0a 00 00 00 00 00 00 | else|........|
|00002f60| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 69 66 20 | | if |
|00002f70| 74 61 69 6c 5e 2e 61 6e | 61 74 6f 6d 0d 0a 00 00 |tail^.an|atom....|
|00002f80| 00 00 00 00 20 20 20 20 | 20 20 20 20 20 20 20 20 |.... | |
|00002f90| 20 74 68 65 6e 0d 0a 00 | 00 00 00 00 00 20 20 20 | then...|..... |
|00002fa0| 20 20 20 20 20 20 20 20 | 20 20 20 20 62 65 67 69 | | begi|
|00002fb0| 6e 20 77 72 69 74 65 28 | 27 2e 27 29 3b 20 20 70 |n write(|'.'); p|
|00002fc0| 72 69 6e 74 65 78 70 72 | 28 74 61 69 6c 29 3b 20 |rintexpr|(tail); |
|00002fd0| 20 77 72 69 74 65 28 27 | 29 27 29 20 65 6e 64 0d | write('|)') end.|
|00002fe0| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00002ff0| 20 20 20 20 65 6c 73 65 | 20 62 65 67 69 6e 20 73 | else| begin s|
|00003000| 70 74 72 20 3a 3d 20 74 | 61 69 6c 3b 20 20 67 6f |ptr := t|ail; go|
|00003010| 74 6f 20 31 20 65 6e 64 | 0d 0a 00 00 00 00 00 00 |to 1 end|........|
|00003020| 20 20 20 20 20 20 20 20 | 20 65 6e 64 0d 0a 00 00 | | end....|
|00003030| 00 00 00 00 20 20 20 20 | 20 65 6e 64 0d 0a 00 00 |.... | end....|
|00003040| 00 00 00 00 65 6e 64 3b | 20 7b 20 70 72 69 6e 74 |....end;| { print|
|00003050| 65 78 70 72 20 7d 0d 0a | 00 00 00 00 00 00 0d 0a |expr }..|........|
|00003060| 00 00 00 00 00 00 7b 20 | 20 20 20 20 20 20 20 20 |......{ | |
|00003070| 65 20 6e 20 64 20 20 6f | 20 66 20 20 69 20 2f 20 |e n d o| f i / |
|00003080| 6f 20 20 75 20 74 20 69 | 20 6c 20 69 20 74 20 79 |o u t i| l i t y|
|00003090| 20 20 72 20 6f 20 75 20 | 74 20 69 20 6e 20 65 20 | r o u |t i n e |
|000030a0| 73 20 20 20 20 20 20 20 | 20 7d 0d 0a 00 00 00 00 |s | }......|
|000030b0| 00 00 0d 0a 00 00 00 00 | 00 00 7b 20 20 20 20 20 |........|..{ |
|000030c0| 20 54 20 68 20 65 20 20 | 65 20 78 20 70 20 72 20 | T h e |e x p r |
|000030d0| 65 20 73 20 73 20 69 20 | 6f 20 6e 20 20 65 20 76 |e s s i |o n e v|
|000030e0| 20 61 20 6c 20 75 20 61 | 20 74 20 65 20 72 20 20 | a l u a| t e r |
|000030f0| 65 20 76 20 61 20 6c 20 | 20 20 20 20 20 7d 0d 0a |e v a l | }..|
|00003100| 00 00 00 00 00 00 0d 0a | 00 00 00 00 00 00 66 75 |........|......fu|
|00003110| 6e 63 74 69 6f 6e 20 65 | 76 61 6c 28 65 2c 20 61 |nction e|val(e, a|
|00003120| 6c 69 73 74 20 3a 20 73 | 79 6d 62 65 78 70 70 74 |list : s|ymbexppt|
|00003130| 72 29 20 3a 20 73 79 6d | 62 65 78 70 70 74 72 3b |r) : sym|bexpptr;|
|00003140| 0d 0a 00 00 00 00 00 00 | 7b 0d 0a 00 00 00 00 00 |........|{.......|
|00003150| 00 20 20 20 20 20 65 76 | 61 6c 75 61 74 65 20 27 |. ev|aluate '|
|00003160| 65 27 20 75 73 69 6e 67 | 20 74 68 65 20 61 73 73 |e' using| the ass|
|00003170| 6f 63 69 61 74 69 6f 6e | 20 6c 69 73 74 20 27 61 |ociation| list 'a|
|00003180| 6c 69 73 74 27 0d 0a 00 | 00 00 00 00 00 0d 0a 00 |list'...|........|
|00003190| 00 00 00 00 00 20 20 20 | 20 20 28 6c 61 6d 62 64 |..... | (lambd|
|000031a0| 61 20 28 65 20 61 6c 69 | 73 74 29 0d 0a 00 00 00 |a (e ali|st).....|
|000031b0| 00 00 00 20 20 20 20 20 | 20 20 63 6f 6e 64 0d 0a |... | cond..|
|000031c0| 00 00 00 00 00 00 20 20 | 20 20 20 20 20 20 20 28 |...... | (|
|000031d0| 28 61 74 6f 6d 20 65 29 | 20 28 6c 6f 6f 6b 75 70 |(atom e)| (lookup|
|000031e0| 20 65 20 61 6c 69 73 74 | 29 29 0d 0a 00 00 00 00 | e alist|))......|
|000031f0| 00 00 20 20 20 20 20 20 | 20 20 20 28 28 61 74 6f |.. | ((ato|
|00003200| 6d 20 28 63 61 72 20 65 | 29 29 0d 0a 00 00 00 00 |m (car e|))......|
|00003210| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 28 63 |.. | (c|
|00003220| 6f 6e 64 20 28 28 65 71 | 20 28 63 61 72 20 65 29 |ond ((eq| (car e)|
|00003230| 20 28 71 75 6f 74 65 20 | 71 75 6f 74 65 29 29 0d | (quote |quote)).|
|00003240| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00003250| 20 20 20 20 20 20 20 28 | 63 61 64 72 20 65 29 29 | (|cadr e))|
|00003260| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 20 20 |........| |
|00003270| 20 20 20 20 20 20 28 28 | 65 71 20 28 63 61 72 20 | ((|eq (car |
|00003280| 65 29 20 28 71 75 6f 74 | 65 20 61 74 6f 6d 29 29 |e) (quot|e atom))|
|00003290| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 20 20 |........| |
|000032a0| 20 20 20 20 20 20 20 20 | 28 61 74 6f 6d 20 28 65 | |(atom (e|
|000032b0| 76 61 6c 20 28 63 61 64 | 72 20 65 29 20 61 6c 69 |val (cad|r e) ali|
|000032c0| 73 74 29 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |st).....|... |
|000032d0| 20 20 20 20 20 20 20 20 | 20 28 28 65 71 20 28 63 | | ((eq (c|
|000032e0| 61 72 20 65 29 20 28 71 | 75 6f 74 65 20 65 71 29 |ar e) (q|uote eq)|
|000032f0| 29 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |).......|. |
|00003300| 20 20 20 20 20 20 20 20 | 20 28 65 71 20 28 65 76 | | (eq (ev|
|00003310| 61 6c 20 28 63 61 64 72 | 20 65 29 20 61 6c 69 73 |al (cadr| e) alis|
|00003320| 74 29 29 29 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |t)))....|.... |
|00003330| 20 20 20 20 20 20 20 20 | 20 20 28 28 65 71 20 28 | | ((eq (|
|00003340| 63 61 72 20 65 29 20 28 | 71 75 6f 74 65 20 63 61 |car e) (|quote ca|
|00003350| 72 29 29 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |r)).....|... |
|00003360| 20 20 20 20 20 20 20 20 | 20 20 20 28 63 61 72 20 | | (car |
|00003370| 28 65 76 61 6c 20 28 63 | 61 64 72 20 65 29 20 61 |(eval (c|adr e) a|
|00003380| 6c 69 73 74 29 29 29 0d | 0a 00 00 00 00 00 00 20 |list))).|....... |
|00003390| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 28 28 65 | | ((e|
|000033a0| 71 20 28 63 61 72 20 65 | 29 20 28 71 75 6f 74 65 |q (car e|) (quote|
|000033b0| 20 63 64 72 29 29 0d 0a | 00 00 00 00 00 00 20 20 | cdr))..|...... |
|000033c0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 28 63 | | (c|
|000033d0| 64 72 20 28 65 76 61 6c | 20 28 63 61 64 72 20 65 |dr (eval| (cadr e|
|000033e0| 29 20 61 6c 69 73 74 29 | 29 29 0d 0a 00 00 00 00 |) alist)|))......|
|000033f0| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |.. | |
|00003400| 28 28 65 71 20 28 63 61 | 72 20 65 29 20 28 71 75 |((eq (ca|r e) (qu|
|00003410| 6f 74 65 20 63 6f 6e 73 | 29 0d 0a 00 00 00 00 00 |ote cons|).......|
|00003420| 00 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |. | |
|00003430| 20 28 63 6f 6e 73 20 28 | 65 76 61 6c 20 28 63 61 | (cons (|eval (ca|
|00003440| 64 72 20 65 29 20 61 6c | 69 73 74 29 0d 0a 00 00 |dr e) al|ist)....|
|00003450| 00 00 00 00 20 20 20 20 | 20 20 20 20 20 20 20 20 |.... | |
|00003460| 20 20 20 20 20 20 28 65 | 76 61 6c 20 28 63 61 64 | (e|val (cad|
|00003470| 64 72 20 65 29 20 61 6c | 69 73 74 29 0d 0a 00 00 |dr e) al|ist)....|
|00003480| 00 00 00 00 20 20 20 20 | 20 20 20 20 20 20 20 20 |.... | |
|00003490| 20 20 28 28 65 71 20 28 | 63 61 72 20 65 29 20 28 | ((eq (|car e) (|
|000034a0| 71 75 6f 74 65 20 63 6f | 6e 64 29 0d 0a 00 00 00 |quote co|nd).....|
|000034b0| 00 00 00 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |... | |
|000034c0| 20 20 20 28 65 76 63 6f | 6e 20 28 63 64 72 20 65 | (evco|n (cdr e|
|000034d0| 29 29 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |))......|.. |
|000034e0| 20 20 20 20 20 20 20 20 | 28 74 20 28 65 76 61 6c | |(t (eval|
|000034f0| 20 28 63 6f 6e 73 20 28 | 6c 6f 6f 6b 75 70 20 28 | (cons (|lookup (|
|00003500| 63 61 72 20 65 29 20 61 | 6c 69 73 74 29 0d 0a 00 |car e) a|list)...|
|00003510| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 20 20 20 |..... | |
|00003520| 20 20 20 20 20 28 63 64 | 72 20 65 29 29 20 61 6c | (cd|r e)) al|
|00003530| 69 73 74 29 29 29 0d 0a | 00 00 00 00 00 00 20 20 |ist)))..|...... |
|00003540| 20 20 20 20 20 20 20 20 | 20 20 20 20 28 28 65 71 | | ((eq|
|00003550| 20 28 63 61 61 72 20 65 | 29 20 28 71 75 6f 74 65 | (caar e|) (quote|
|00003560| 20 6c 61 62 65 6c 29 29 | 0d 0a 00 00 00 00 00 00 | label))|........|
|00003570| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00003580| 28 65 76 61 6c 20 28 63 | 6f 6e 73 20 28 63 61 64 |(eval (c|ons (cad|
|00003590| 64 61 72 20 65 29 0d 0a | 00 00 00 00 00 00 20 20 |dar e)..|...... |
|000035a0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 28 63 | | (c|
|000035b0| 64 72 20 65 29 0d 0a 00 | 00 00 00 00 00 20 20 20 |dr e)...|..... |
|000035c0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 28 63 6f | | (co|
|000035d0| 6e 73 20 28 63 6f 6e 73 | 20 28 63 61 64 61 72 20 |ns (cons| (cadar |
|000035e0| 65 29 20 28 63 61 72 20 | 65 29 29 0d 0a 00 00 00 |e) (car |e)).....|
|000035f0| 00 00 00 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |... | |
|00003600| 20 20 20 20 20 61 6c 69 | 73 74 29 20 29 29 0d 0a | ali|st) ))..|
|00003610| 00 00 00 00 00 00 20 20 | 20 20 20 20 20 20 20 20 |...... | |
|00003620| 20 20 20 28 28 65 71 20 | 28 63 61 61 72 20 65 29 | ((eq |(caar e)|
|00003630| 20 28 71 75 6f 74 65 20 | 6c 61 6d 62 64 61 29 29 | (quote |lambda))|
|00003640| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 20 20 |........| |
|00003650| 20 20 20 20 20 20 20 28 | 65 76 61 6c 20 28 63 61 | (|eval (ca|
|00003660| 64 64 72 20 65 29 0d 0a | 00 00 00 00 00 00 20 20 |ddr e)..|...... |
|00003670| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 28 | | (|
|00003680| 62 69 6e 64 61 72 67 73 | 20 28 63 61 64 61 72 20 |bindargs| (cadar |
|00003690| 65 29 20 28 63 64 72 20 | 65 29 20 29 29 29 29 29 |e) (cdr |e) )))))|
|000036a0| 0d 0a 00 00 00 00 00 00 | 0d 0a 00 00 00 00 00 00 |........|........|
|000036b0| 20 20 20 20 20 20 54 68 | 65 20 72 65 73 75 6c 74 | Th|e result|
|000036c0| 69 6e 67 20 50 61 73 63 | 61 6c 20 63 6f 64 65 20 |ing Pasc|al code |
|000036d0| 66 6f 6c 6c 6f 77 73 3a | 0d 0a 00 00 00 00 00 00 |follows:|........|
|000036e0| 7d 0d 0a 00 00 00 00 00 | 00 0d 0a 00 00 00 00 00 |}.......|........|
|000036f0| 00 76 61 72 0d 0a 00 00 | 00 00 00 00 20 20 74 65 |.var....|.... te|
|00003700| 6d 70 2c 20 63 61 72 6f | 66 65 2c 20 63 61 61 72 |mp, caro|fe, caar|
|00003710| 6f 66 65 20 3a 20 73 79 | 6d 62 65 78 70 70 74 72 |ofe : sy|mbexpptr|
|00003720| 3b 0d 0a 00 00 00 00 00 | 00 0d 0a 00 00 00 00 00 |;.......|........|
|00003730| 00 7b 0d 0a 00 00 00 00 | 00 00 20 20 54 68 65 20 |.{......|.. The |
|00003740| 66 69 72 73 74 20 74 65 | 6e 20 6f 66 20 74 68 65 |first te|n of the|
|00003750| 20 66 6f 6c 6c 6f 77 69 | 6e 67 20 6c 6f 63 61 6c | followi|ng local|
|00003760| 20 66 75 6e 63 74 69 6f | 6e 73 20 69 6d 70 6c 65 | functio|ns imple|
|00003770| 6d 65 6e 74 0d 0a 00 00 | 00 00 00 00 20 20 74 65 |ment....|.... te|
|00003780| 6e 20 4c 49 53 50 20 70 | 72 69 6d 69 74 69 76 65 |n LISP p|rimitive|
|00003790| 73 2e 20 20 54 68 65 20 | 6c 61 73 74 20 74 68 72 |s. The |last thr|
|000037a0| 65 65 20 61 72 65 20 75 | 73 65 64 20 62 79 20 65 |ee are u|sed by e|
|000037b0| 76 61 6c 2e 0d 0a 00 00 | 00 00 00 00 7d 0d 0a 00 |val.....|....}...|
|000037c0| 00 00 00 00 00 0d 0a 00 | 00 00 00 00 00 20 20 66 |........|..... f|
|000037d0| 75 6e 63 74 69 6f 6e 20 | 72 65 70 6c 61 63 65 68 |unction |replaceh|
|000037e0| 28 73 70 74 72 31 2c 20 | 73 70 74 72 32 20 3a 20 |(sptr1, |sptr2 : |
|000037f0| 73 79 6d 62 65 78 70 70 | 74 72 29 20 3a 20 73 79 |symbexpp|tr) : sy|
|00003800| 6d 62 65 78 70 70 74 72 | 3b 0d 0a 00 00 00 00 00 |mbexpptr|;.......|
|00003810| 00 0d 0a 00 00 00 00 00 | 00 20 20 20 20 62 65 67 |........|. beg|
|00003820| 69 6e 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |in......|.. |
|00003830| 69 66 20 73 70 74 72 31 | 5e 2e 61 6e 61 74 6f 6d |if sptr1|^.anatom|
|00003840| 20 74 68 65 6e 20 65 72 | 72 6f 72 28 35 29 20 20 | then er|ror(5) |
|00003850| 65 6c 73 65 20 73 70 74 | 72 31 5e 2e 68 65 61 64 |else spt|r1^.head|
|00003860| 20 3a 3d 20 73 70 74 72 | 32 3b 0d 0a 00 00 00 00 | := sptr|2;......|
|00003870| 00 00 20 20 20 20 20 20 | 72 65 70 6c 61 63 65 68 |.. |replaceh|
|00003880| 20 3a 3d 20 73 70 74 72 | 31 0d 0a 00 00 00 00 00 | := sptr|1.......|
|00003890| 00 20 20 20 20 65 6e 64 | 3b 20 20 7b 20 72 65 70 |. end|; { rep|
|000038a0| 6c 61 63 65 68 20 7d 0d | 0a 00 00 00 00 00 00 0d |laceh }.|........|
|000038b0| 0a 00 00 00 00 00 00 20 | 20 66 75 6e 63 74 69 6f |....... | functio|
|000038c0| 6e 20 72 65 70 6c 61 63 | 65 74 28 73 70 74 72 31 |n replac|et(sptr1|
|000038d0| 2c 20 73 70 74 72 32 20 | 3a 20 73 79 6d 62 65 78 |, sptr2 |: symbex|
|000038e0| 70 70 74 72 29 20 3a 20 | 73 79 6d 62 65 78 70 70 |pptr) : |symbexpp|
|000038f0| 74 72 3b 0d 0a 00 00 00 | 00 00 00 0d 0a 00 00 00 |tr;.....|........|
|00003900| 00 00 00 20 20 20 20 62 | 65 67 69 6e 0d 0a 00 00 |... b|egin....|
|00003910| 00 00 00 00 20 20 20 20 | 20 20 69 66 20 73 70 74 |.... | if spt|
|00003920| 72 31 5e 2e 61 6e 61 74 | 6f 6d 20 74 68 65 6e 20 |r1^.anat|om then |
|00003930| 65 72 72 6f 72 28 36 29 | 20 20 65 6c 73 65 20 73 |error(6)| else s|
|00003940| 70 74 72 31 5e 2e 74 61 | 69 6c 20 3a 3d 20 73 70 |ptr1^.ta|il := sp|
|00003950| 74 72 32 3b 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |tr2;....|.... |
|00003960| 20 20 72 65 70 6c 61 63 | 65 74 20 3a 3d 20 73 70 | replac|et := sp|
|00003970| 74 72 31 0d 0a 00 00 00 | 00 00 00 20 20 20 20 65 |tr1.....|... e|
|00003980| 6e 64 3b 20 20 7b 20 72 | 65 70 6c 61 63 65 74 20 |nd; { r|eplacet |
|00003990| 7d 0d 0a 00 00 00 00 00 | 00 0d 0a 00 00 00 00 00 |}.......|........|
|000039a0| 00 20 20 66 75 6e 63 74 | 69 6f 6e 20 68 65 61 64 |. funct|ion head|
|000039b0| 28 73 70 74 72 20 3a 20 | 73 79 6d 62 65 78 70 70 |(sptr : |symbexpp|
|000039c0| 74 72 29 20 3a 20 73 79 | 6d 62 65 78 70 70 74 72 |tr) : sy|mbexpptr|
|000039d0| 3b 0d 0a 00 00 00 00 00 | 00 0d 0a 00 00 00 00 00 |;.......|........|
|000039e0| 00 20 20 20 20 62 65 67 | 69 6e 0d 0a 00 00 00 00 |. beg|in......|
|000039f0| 00 00 20 20 20 20 20 20 | 69 66 20 73 70 74 72 5e |.. |if sptr^|
|00003a00| 2e 61 6e 61 74 6f 6d 20 | 20 74 68 65 6e 20 65 72 |.anatom | then er|
|00003a10| 72 6f 72 28 37 29 20 20 | 65 6c 73 65 20 68 65 61 |ror(7) |else hea|
|00003a20| 64 20 3a 3d 20 73 70 74 | 72 5e 2e 68 65 61 64 0d |d := spt|r^.head.|
|00003a30| 0a 00 00 00 00 00 00 20 | 20 20 20 65 6e 64 3b 20 |....... | end; |
|00003a40| 20 7b 20 68 65 61 64 20 | 7d 0d 0a 00 00 00 00 00 | { head |}.......|
|00003a50| 00 0d 0a 00 00 00 00 00 | 00 20 20 66 75 6e 63 74 |........|. funct|
|00003a60| 69 6f 6e 20 74 61 69 6c | 28 73 70 74 72 20 3a 20 |ion tail|(sptr : |
|00003a70| 73 79 6d 62 65 78 70 70 | 74 72 29 20 3a 20 73 79 |symbexpp|tr) : sy|
|00003a80| 6d 62 65 78 70 70 74 72 | 3b 0d 0a 00 00 00 00 00 |mbexpptr|;.......|
|00003a90| 00 0d 0a 00 00 00 00 00 | 00 20 20 20 20 62 65 67 |........|. beg|
|00003aa0| 69 6e 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |in......|.. |
|00003ab0| 69 66 20 73 70 74 72 5e | 2e 61 6e 61 74 6f 6d 20 |if sptr^|.anatom |
|00003ac0| 74 68 65 6e 20 65 72 72 | 6f 72 28 38 29 20 20 65 |then err|or(8) e|
|00003ad0| 6c 73 65 20 20 74 61 69 | 6c 20 3a 3d 20 73 70 74 |lse tai|l := spt|
|00003ae0| 72 5e 2e 74 61 69 6c 0d | 0a 00 00 00 00 00 00 20 |r^.tail.|....... |
|00003af0| 20 20 20 65 6e 64 3b 20 | 20 7b 20 74 61 69 6c 20 | end; | { tail |
|00003b00| 7d 0d 0a 00 00 00 00 00 | 00 0d 0a 00 00 00 00 00 |}.......|........|
|00003b10| 00 20 20 66 75 6e 63 74 | 69 6f 6e 20 63 6f 6e 73 |. funct|ion cons|
|00003b20| 28 73 70 74 72 31 2c 20 | 73 70 74 72 32 20 3a 20 |(sptr1, |sptr2 : |
|00003b30| 73 79 6d 62 65 78 70 70 | 74 72 29 20 3a 20 73 79 |symbexpp|tr) : sy|
|00003b40| 6d 62 65 78 70 70 74 72 | 3b 0d 0a 00 00 00 00 00 |mbexpptr|;.......|
|00003b50| 00 0d 0a 00 00 00 00 00 | 00 20 20 20 20 76 61 72 |........|. var|
|00003b60| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 74 65 |........| te|
|00003b70| 6d 70 20 3a 20 73 79 6d | 62 65 78 70 70 74 72 3b |mp : sym|bexpptr;|
|00003b80| 0d 0a 00 00 00 00 00 00 | 0d 0a 00 00 00 00 00 00 |........|........|
|00003b90| 20 20 20 20 62 65 67 69 | 6e 0d 0a 00 00 00 00 00 | begi|n.......|
|00003ba0| 00 20 20 20 20 20 20 70 | 6f 70 28 74 65 6d 70 29 |. p|op(temp)|
|00003bb0| 3b 20 20 74 65 6d 70 5e | 2e 61 6e 61 74 6f 6d 20 |; temp^|.anatom |
|00003bc0| 3a 3d 20 66 61 6c 73 65 | 3b 20 20 74 65 6d 70 5e |:= false|; temp^|
|00003bd0| 2e 68 65 61 64 20 3a 3d | 20 73 70 74 72 31 3b 0d |.head :=| sptr1;.|
|00003be0| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 74 65 6d |....... | tem|
|00003bf0| 70 5e 2e 74 61 69 6c 20 | 3a 3d 20 73 70 74 72 32 |p^.tail |:= sptr2|
|00003c00| 3b 20 20 63 6f 6e 73 20 | 3a 3d 20 74 65 6d 70 0d |; cons |:= temp.|
|00003c10| 0a 00 00 00 00 00 00 20 | 20 20 20 65 6e 64 3b 20 |....... | end; |
|00003c20| 20 7b 20 63 6f 6e 73 20 | 7d 0d 0a 00 00 00 00 00 | { cons |}.......|
|00003c30| 00 0d 0a 00 00 00 00 00 | 00 20 20 66 75 6e 63 74 |........|. funct|
|00003c40| 69 6f 6e 20 63 6f 70 79 | 28 73 70 74 72 20 3a 20 |ion copy|(sptr : |
|00003c50| 73 79 6d 62 65 78 70 70 | 74 72 29 20 3a 20 73 79 |symbexpp|tr) : sy|
|00003c60| 6d 62 65 78 70 70 74 72 | 3b 0d 0a 00 00 00 00 00 |mbexpptr|;.......|
|00003c70| 00 0d 0a 00 00 00 00 00 | 00 20 20 7b 0d 0a 00 00 |........|. {....|
|00003c80| 00 00 00 00 20 20 20 20 | 20 54 68 69 73 20 66 75 |.... | This fu|
|00003c90| 6e 63 74 69 6f 6e 20 63 | 72 65 61 74 65 73 20 61 |nction c|reates a|
|00003ca0| 20 63 6f 70 79 20 6f 66 | 20 74 68 65 20 73 74 72 | copy of| the str|
|00003cb0| 75 63 74 75 72 65 0d 0a | 00 00 00 00 00 00 20 20 |ucture..|...... |
|00003cc0| 20 20 20 70 6f 69 6e 74 | 65 64 20 74 6f 20 62 79 | point|ed to by|
|00003cd0| 20 74 68 65 20 70 61 72 | 61 6d 65 74 65 72 20 27 | the par|ameter '|
|00003ce0| 73 70 74 72 27 0d 0a 00 | 00 00 00 00 00 20 20 7d |sptr'...|..... }|
|00003cf0| 0d 0a 00 00 00 00 00 00 | 0d 0a 00 00 00 00 00 00 |........|........|
|00003d00| 20 20 76 61 72 0d 0a 00 | 00 00 00 00 00 20 20 20 | var...|..... |
|00003d10| 20 74 65 6d 70 2c 20 6e | 78 74 20 3a 20 73 79 6d | temp, n|xt : sym|
|00003d20| 62 65 78 70 70 74 72 3b | 0d 0a 00 00 00 00 00 00 |bexpptr;|........|
|00003d30| 0d 0a 00 00 00 00 00 00 | 20 20 62 65 67 69 6e 0d |........| begin.|
|00003d40| 0a 00 00 00 00 00 00 20 | 20 20 20 69 66 20 73 70 |....... | if sp|
|00003d50| 74 72 5e 2e 61 6e 61 74 | 6f 6d 0d 0a 00 00 00 00 |tr^.anat|om......|
|00003d60| 00 00 20 20 20 20 74 68 | 65 6e 0d 0a 00 00 00 00 |.. th|en......|
|00003d70| 00 00 20 20 20 20 20 20 | 62 65 67 69 6e 0d 0a 00 |.. |begin...|
|00003d80| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 70 6f 70 |..... | pop|
|00003d90| 28 74 65 6d 70 29 3b 20 | 20 6e 78 74 20 3a 3d 20 |(temp); | nxt := |
|00003da0| 74 65 6d 70 5e 2e 6e 65 | 78 74 3b 20 20 74 65 6d |temp^.ne|xt; tem|
|00003db0| 70 5e 20 3a 3d 20 73 70 | 74 72 5e 3b 0d 0a 00 00 |p^ := sp|tr^;....|
|00003dc0| 00 00 00 00 20 20 20 20 | 20 20 20 20 74 65 6d 70 |.... | temp|
|00003dd0| 5e 2e 6e 65 78 74 20 3a | 3d 20 6e 78 74 3b 20 20 |^.next :|= nxt; |
|00003de0| 63 6f 70 79 20 3a 3d 20 | 74 65 6d 70 0d 0a 00 00 |copy := |temp....|
|00003df0| 00 00 00 00 20 20 20 20 | 20 20 65 6e 64 0d 0a 00 |.... | end...|
|00003e00| 00 00 00 00 00 20 20 20 | 20 65 6c 73 65 20 20 63 |..... | else c|
|00003e10| 6f 70 79 20 3a 3d 20 63 | 6f 6e 73 28 63 6f 70 79 |opy := c|ons(copy|
|00003e20| 28 73 70 74 72 5e 2e 68 | 65 61 64 29 2c 20 63 6f |(sptr^.h|ead), co|
|00003e30| 70 79 28 73 70 74 72 5e | 2e 74 61 69 6c 29 29 0d |py(sptr^|.tail)).|
|00003e40| 0a 00 00 00 00 00 00 20 | 20 65 6e 64 3b 20 20 7b |....... | end; {|
|00003e50| 20 63 6f 70 79 20 7d 0d | 0a 00 00 00 00 00 00 0d | copy }.|........|
|00003e60| 0a 00 00 00 00 00 00 20 | 20 66 75 6e 63 74 69 6f |....... | functio|
|00003e70| 6e 20 61 70 70 65 6e 64 | 28 73 70 74 72 31 2c 20 |n append|(sptr1, |
|00003e80| 73 70 74 72 32 20 3a 20 | 73 79 6d 62 65 78 70 70 |sptr2 : |symbexpp|
|00003e90| 74 72 29 20 3a 20 73 79 | 6d 62 65 78 70 70 74 72 |tr) : sy|mbexpptr|
|00003ea0| 3b 0d 0a 00 00 00 00 00 | 00 0d 0a 00 00 00 00 00 |;.......|........|
|00003eb0| 00 20 20 7b 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |. {....|.... |
|00003ec0| 20 20 54 68 65 20 72 65 | 63 75 72 73 69 76 65 20 | The re|cursive |
|00003ed0| 61 6c 67 6f 72 69 74 68 | 79 6d 20 69 73 20 66 72 |algorith|ym is fr|
|00003ee0| 6f 6d 20 57 65 69 73 73 | 6d 61 6e 2c 20 70 2e 20 |om Weiss|man, p. |
|00003ef0| 39 37 2e 0d 0a 00 00 00 | 00 00 00 20 20 7d 0d 0a |97......|... }..|
|00003f00| 00 00 00 00 00 00 0d 0a | 00 00 00 00 00 00 20 20 |........|...... |
|00003f10| 62 65 67 69 6e 0d 0a 00 | 00 00 00 00 00 20 20 20 |begin...|..... |
|00003f20| 20 69 66 20 73 70 74 72 | 31 5e 2e 61 6e 61 74 6f | if sptr|1^.anato|
|00003f30| 6d 0d 0a 00 00 00 00 00 | 00 20 20 20 20 74 68 65 |m.......|. the|
|00003f40| 6e 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 69 |n.......|. i|
|00003f50| 66 20 73 70 74 72 31 5e | 2e 6e 61 6d 65 20 3c 3e |f sptr1^|.name <>|
|00003f60| 20 27 4e 49 4c 20 20 20 | 20 20 20 20 27 20 74 68 | 'NIL | ' th|
|00003f70| 65 6e 20 65 72 72 6f 72 | 28 39 29 0d 0a 00 00 00 |en error|(9).....|
|00003f80| 00 00 00 20 20 20 20 20 | 20 65 6c 73 65 20 20 61 |... | else a|
|00003f90| 70 70 65 6e 64 20 3a 3d | 20 73 70 74 72 32 0d 0a |ppend :=| sptr2..|
|00003fa0| 00 00 00 00 00 00 20 20 | 20 20 65 6c 73 65 0d 0a |...... | else..|
|00003fb0| 00 00 00 00 00 00 20 20 | 20 20 20 20 61 70 70 65 |...... | appe|
|00003fc0| 6e 64 20 3a 3d 20 63 6f | 6e 73 28 63 6f 70 79 28 |nd := co|ns(copy(|
|00003fd0| 73 70 74 72 31 5e 2e 68 | 65 61 64 29 2c 20 61 70 |sptr1^.h|ead), ap|
|00003fe0| 70 65 6e 64 28 73 70 74 | 72 31 5e 2e 74 61 69 6c |pend(spt|r1^.tail|
|00003ff0| 2c 20 73 70 74 72 32 29 | 29 0d 0a 00 00 00 00 00 |, sptr2)|).......|
|00004000| 00 20 20 65 6e 64 3b 20 | 7b 20 61 70 70 65 6e 64 |. end; |{ append|
|00004010| 20 7d 0d 0a 00 00 00 00 | 00 00 0d 0a 00 00 00 00 | }......|........|
|00004020| 00 00 20 20 66 75 6e 63 | 74 69 6f 6e 20 63 6f 6e |.. func|tion con|
|00004030| 63 28 73 70 74 72 31 20 | 3a 20 73 79 6d 62 65 78 |c(sptr1 |: symbex|
|00004040| 70 70 74 72 29 20 3a 20 | 73 79 6d 62 65 78 70 70 |pptr) : |symbexpp|
|00004050| 74 72 3b 0d 0a 00 00 00 | 00 00 00 0d 0a 00 00 00 |tr;.....|........|
|00004060| 00 00 00 20 20 76 61 72 | 0d 0a 00 00 00 00 00 00 |... var|........|
|00004070| 20 20 20 20 73 70 74 72 | 32 2c 20 6e 69 6c 70 74 | sptr|2, nilpt|
|00004080| 72 20 3a 20 73 79 6d 62 | 65 78 70 70 74 72 3b 0d |r : symb|expptr;.|
|00004090| 0a 00 00 00 00 00 00 0d | 0a 00 00 00 00 00 00 20 |........|....... |
|000040a0| 20 62 65 67 69 6e 0d 0a | 00 00 00 00 00 00 20 20 | begin..|...... |
|000040b0| 20 20 69 66 20 73 79 6d | 20 3c 3e 20 72 70 61 72 | if sym| <> rpar|
|000040c0| 65 6e 0d 0a 00 00 00 00 | 00 00 20 20 20 20 74 68 |en......|.. th|
|000040d0| 65 6e 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |en......|.. |
|000040e0| 62 65 67 69 6e 0d 0a 00 | 00 00 00 00 00 20 20 20 |begin...|..... |
|000040f0| 20 20 20 20 20 6e 65 78 | 74 73 79 6d 3b 20 20 72 | nex|tsym; r|
|00004100| 65 61 64 65 78 70 72 28 | 73 70 74 72 32 29 3b 20 |eadexpr(|sptr2); |
|00004110| 20 6e 65 78 74 73 79 6d | 3b 0d 0a 00 00 00 00 00 | nextsym|;.......|
|00004120| 00 20 20 20 20 20 20 20 | 20 63 6f 6e 63 20 3a 3d |. | conc :=|
|00004130| 20 63 6f 6e 73 28 73 70 | 74 72 31 2c 20 63 6f 6e | cons(sp|tr1, con|
|00004140| 63 28 73 70 74 72 32 29 | 29 3b 0d 0a 00 00 00 00 |c(sptr2)|);......|
|00004150| 00 00 20 20 20 20 20 20 | 65 6e 64 0d 0a 00 00 00 |.. |end.....|
|00004160| 00 00 00 20 20 20 20 65 | 6c 73 65 0d 0a 00 00 00 |... e|lse.....|
|00004170| 00 00 00 20 20 20 20 20 | 20 69 66 20 73 79 6d 20 |... | if sym |
|00004180| 3d 20 72 70 61 72 65 6e | 0d 0a 00 00 00 00 00 00 |= rparen|........|
|00004190| 20 20 20 20 20 20 20 20 | 74 68 65 6e 0d 0a 00 00 | |then....|
|000041a0| 00 00 00 00 20 20 20 20 | 20 20 20 20 20 20 62 65 |.... | be|
|000041b0| 67 69 6e 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |gin.....|... |
|000041c0| 20 20 20 20 20 20 20 6e | 65 77 28 6e 69 6c 70 74 | n|ew(nilpt|
|000041d0| 72 29 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |r);.....|... |
|000041e0| 20 20 20 20 20 20 20 77 | 69 74 68 20 6e 69 6c 70 | w|ith nilp|
|000041f0| 74 72 5e 20 64 6f 0d 0a | 00 00 00 00 00 00 20 20 |tr^ do..|...... |
|00004200| 20 20 20 20 20 20 20 20 | 20 20 20 20 62 65 67 69 | | begi|
|00004210| 6e 20 20 61 6e 61 74 6f | 6d 20 3a 3d 20 74 72 75 |n anato|m := tru|
|00004220| 65 3b 20 20 6e 61 6d 65 | 20 3a 3d 20 27 4e 49 4c |e; name| := 'NIL|
|00004230| 20 20 20 20 20 20 20 27 | 20 65 6e 64 3b 0d 0a 00 | '| end;...|
|00004240| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 20 20 20 |..... | |
|00004250| 20 20 20 63 6f 6e 63 20 | 3a 3d 20 63 6f 6e 73 28 | conc |:= cons(|
|00004260| 73 70 74 72 31 2c 20 6e | 69 6c 70 74 72 29 3b 0d |sptr1, n|ilptr);.|
|00004270| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00004280| 20 65 6e 64 0d 0a 00 00 | 00 00 00 00 20 20 20 20 | end....|.... |
|00004290| 20 20 20 20 65 6c 73 65 | 20 65 72 72 6f 72 28 31 | else| error(1|
|000042a0| 30 29 0d 0a 00 00 00 00 | 00 00 20 20 65 6e 64 3b |0)......|.. end;|
|000042b0| 20 20 7b 20 63 6f 6e 63 | 20 7d 0d 0a 00 00 00 00 | { conc| }......|
|000042c0| 00 00 0d 0a 00 00 00 00 | 00 00 20 20 66 75 6e 63 |........|.. func|
|000042d0| 74 69 6f 6e 20 65 71 71 | 28 73 70 74 72 31 2c 20 |tion eqq|(sptr1, |
|000042e0| 73 70 74 72 32 20 3a 20 | 73 79 6d 62 65 78 70 70 |sptr2 : |symbexpp|
|000042f0| 74 72 29 20 3a 20 73 79 | 6d 62 65 78 70 70 74 72 |tr) : sy|mbexpptr|
|00004300| 3b 0d 0a 00 00 00 00 00 | 00 0d 0a 00 00 00 00 00 |;.......|........|
|00004310| 00 20 20 76 61 72 0d 0a | 00 00 00 00 00 00 20 20 |. var..|...... |
|00004320| 20 20 74 65 6d 70 2c 20 | 6e 78 74 20 3a 20 73 79 | temp, |nxt : sy|
|00004330| 6d 62 65 78 70 70 74 72 | 3b 0d 0a 00 00 00 00 00 |mbexpptr|;.......|
|00004340| 00 0d 0a 00 00 00 00 00 | 00 20 20 62 65 67 69 6e |........|. begin|
|00004350| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 70 6f 70 28 |........| pop(|
|00004360| 74 65 6d 70 29 3b 20 20 | 6e 78 74 20 3a 3d 20 74 |temp); |nxt := t|
|00004370| 65 6d 70 5e 2e 6e 65 78 | 74 3b 0d 0a 00 00 00 00 |emp^.nex|t;......|
|00004380| 00 00 20 20 20 20 69 66 | 20 73 70 74 72 31 5e 2e |.. if| sptr1^.|
|00004390| 61 6e 61 74 6f 6d 20 61 | 6e 64 20 73 70 74 72 32 |anatom a|nd sptr2|
|000043a0| 5e 2e 61 6e 61 74 6f 6d | 0d 0a 00 00 00 00 00 00 |^.anatom|........|
|000043b0| 20 20 20 20 74 68 65 6e | 0d 0a 00 00 00 00 00 00 | then|........|
|000043c0| 20 20 20 20 20 20 69 66 | 20 73 70 74 72 31 5e 2e | if| sptr1^.|
|000043d0| 6e 61 6d 65 20 3d 20 73 | 70 74 72 32 5e 2e 6e 61 |name = s|ptr2^.na|
|000043e0| 6d 65 20 20 74 68 65 6e | 20 74 65 6d 70 5e 20 3a |me then| temp^ :|
|000043f0| 3d 20 74 6e 6f 64 65 0d | 0a 00 00 00 00 00 00 20 |= tnode.|....... |
|00004400| 20 20 20 20 20 65 6c 73 | 65 20 74 65 6d 70 5e 20 | els|e temp^ |
|00004410| 3a 3d 20 6e 69 6c 6e 6f | 64 65 0d 0a 00 00 00 00 |:= nilno|de......|
|00004420| 00 00 20 20 20 20 65 6c | 73 65 0d 0a 00 00 00 00 |.. el|se......|
|00004430| 00 00 20 20 20 20 20 20 | 69 66 20 73 70 74 72 31 |.. |if sptr1|
|00004440| 20 3d 20 73 70 74 72 32 | 20 20 74 68 65 6e 20 74 | = sptr2| then t|
|00004450| 65 6d 70 5e 20 3a 3d 20 | 74 6e 6f 64 65 0d 0a 00 |emp^ := |tnode...|
|00004460| 00 00 00 00 00 20 20 20 | 20 20 20 65 6c 73 65 20 |..... | else |
|00004470| 74 65 6d 70 5e 20 3a 3d | 20 6e 69 6c 6e 6f 64 65 |temp^ :=| nilnode|
|00004480| 3b 0d 0a 00 00 00 00 00 | 00 20 20 20 20 74 65 6d |;.......|. tem|
|00004490| 70 5e 2e 6e 65 78 74 20 | 3a 3d 20 6e 78 74 3b 20 |p^.next |:= nxt; |
|000044a0| 20 65 71 71 20 3a 3d 20 | 74 65 6d 70 0d 0a 00 00 | eqq := |temp....|
|000044b0| 00 00 00 00 20 20 65 6e | 64 3b 20 7b 20 65 71 71 |.... en|d; { eqq|
|000044c0| 20 7d 0d 0a 00 00 00 00 | 00 00 0d 0a 00 00 00 00 | }......|........|
|000044d0| 00 00 20 20 66 75 6e 63 | 74 69 6f 6e 20 61 74 6f |.. func|tion ato|
|000044e0| 6d 28 73 70 74 72 20 3a | 20 73 79 6d 62 65 78 70 |m(sptr :| symbexp|
|000044f0| 70 74 72 29 20 3a 20 73 | 79 6d 62 65 78 70 70 74 |ptr) : s|ymbexppt|
|00004500| 72 3b 0d 0a 00 00 00 00 | 00 00 0d 0a 00 00 00 00 |r;......|........|
|00004510| 00 00 20 20 76 61 72 0d | 0a 00 00 00 00 00 00 20 |.. var.|....... |
|00004520| 20 20 20 74 65 6d 70 2c | 20 6e 78 74 20 3a 20 73 | temp,| nxt : s|
|00004530| 79 6d 62 65 78 70 70 74 | 72 3b 0d 0a 00 00 00 00 |ymbexppt|r;......|
|00004540| 00 00 0d 0a 00 00 00 00 | 00 00 20 20 62 65 67 69 |........|.. begi|
|00004550| 6e 0d 0a 00 00 00 00 00 | 00 20 20 20 20 70 6f 70 |n.......|. pop|
|00004560| 28 74 65 6d 70 29 3b 20 | 20 6e 78 74 20 3a 3d 20 |(temp); | nxt := |
|00004570| 74 65 6d 70 5e 2e 6e 65 | 78 74 3b 0d 0a 00 00 00 |temp^.ne|xt;.....|
|00004580| 00 00 00 20 20 20 20 69 | 66 20 73 70 74 72 5e 2e |... i|f sptr^.|
|00004590| 61 6e 61 74 6f 6d 20 20 | 74 68 65 6e 20 74 65 6d |anatom |then tem|
|000045a0| 70 5e 20 3a 3d 20 74 6e | 6f 64 65 20 20 65 6c 73 |p^ := tn|ode els|
|000045b0| 65 20 74 65 6d 70 5e 20 | 3a 3d 20 6e 69 6c 6e 6f |e temp^ |:= nilno|
|000045c0| 64 65 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 74 |de;.....|... t|
|000045d0| 65 6d 70 5e 2e 6e 65 78 | 74 20 3a 3d 20 6e 78 74 |emp^.nex|t := nxt|
|000045e0| 3b 20 20 61 74 6f 6d 20 | 3a 3d 20 74 65 6d 70 0d |; atom |:= temp.|
|000045f0| 0a 00 00 00 00 00 00 20 | 20 65 6e 64 3b 20 7b 20 |....... | end; { |
|00004600| 61 74 6f 6d 20 7d 0d 0a | 00 00 00 00 00 00 0d 0a |atom }..|........|
|00004610| 00 00 00 00 00 00 20 20 | 66 75 6e 63 74 69 6f 6e |...... |function|
|00004620| 20 6c 6f 6f 6b 75 70 28 | 6b 65 79 2c 20 61 6c 69 | lookup(|key, ali|
|00004630| 73 74 20 3a 20 73 79 6d | 62 65 78 70 70 74 72 29 |st : sym|bexpptr)|
|00004640| 20 3a 20 73 79 6d 62 65 | 78 70 70 74 72 3b 0d 0a | : symbe|xpptr;..|
|00004650| 00 00 00 00 00 00 0d 0a | 00 00 00 00 00 00 20 20 |........|...... |
|00004660| 76 61 72 0d 0a 00 00 00 | 00 00 00 20 20 20 20 74 |var.....|... t|
|00004670| 65 6d 70 20 3a 20 73 79 | 6d 62 65 78 70 70 74 72 |emp : sy|mbexpptr|
|00004680| 3b 0d 0a 00 00 00 00 00 | 00 0d 0a 00 00 00 00 00 |;.......|........|
|00004690| 00 20 20 62 65 67 69 6e | 0d 0a 00 00 00 00 00 00 |. begin|........|
|000046a0| 20 20 20 20 74 65 6d 70 | 20 3a 3d 20 65 71 71 28 | temp| := eqq(|
|000046b0| 68 65 61 64 28 68 65 61 | 64 28 61 6c 69 73 74 29 |head(hea|d(alist)|
|000046c0| 29 2c 20 6b 65 79 29 3b | 0d 0a 00 00 00 00 00 00 |), key);|........|
|000046d0| 20 20 20 20 69 66 20 74 | 65 6d 70 5e 2e 6e 61 6d | if t|emp^.nam|
|000046e0| 65 20 3d 20 27 54 20 20 | 20 20 20 20 20 20 20 27 |e = 'T | '|
|000046f0| 20 74 68 65 6e 20 6c 6f | 6f 6b 75 70 20 3a 3d 20 | then lo|okup := |
|00004700| 74 61 69 6c 28 68 65 61 | 64 28 61 6c 69 73 74 29 |tail(hea|d(alist)|
|00004710| 29 0d 0a 00 00 00 00 00 | 00 20 20 20 20 65 6c 73 |).......|. els|
|00004720| 65 20 6c 6f 6f 6b 75 70 | 20 3a 3d 20 6c 6f 6f 6b |e lookup| := look|
|00004730| 75 70 28 6b 65 79 2c 20 | 74 61 69 6c 28 61 6c 69 |up(key, |tail(ali|
|00004740| 73 74 29 29 0d 0a 00 00 | 00 00 00 00 20 20 65 6e |st))....|.... en|
|00004750| 64 3b 20 20 7b 20 6c 6f | 6f 6b 75 70 20 7d 0d 0a |d; { lo|okup }..|
|00004760| 00 00 00 00 00 00 0d 0a | 00 00 00 00 00 00 20 20 |........|...... |
|00004770| 66 75 6e 63 74 69 6f 6e | 20 62 69 6e 64 61 72 67 |function| bindarg|
|00004780| 73 28 6e 61 6d 65 73 2c | 20 76 61 6c 75 65 73 20 |s(names,| values |
|00004790| 3a 20 73 79 6d 62 65 78 | 70 70 74 72 29 20 3a 20 |: symbex|pptr) : |
|000047a0| 73 79 6d 62 65 78 70 70 | 74 72 3b 0d 0a 00 00 00 |symbexpp|tr;.....|
|000047b0| 00 00 00 0d 0a 00 00 00 | 00 00 00 20 20 76 61 72 |........|... var|
|000047c0| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 74 65 6d 70 |........| temp|
|000047d0| 2c 20 74 65 6d 70 32 20 | 3a 20 73 79 6d 62 65 78 |, temp2 |: symbex|
|000047e0| 70 70 74 72 3b 0d 0a 00 | 00 00 00 00 00 0d 0a 00 |pptr;...|........|
|000047f0| 00 00 00 00 00 20 20 62 | 65 67 69 6e 0d 0a 00 00 |..... b|egin....|
|00004800| 00 00 00 00 20 20 20 20 | 69 66 20 6e 61 6d 65 73 |.... |if names|
|00004810| 5e 2e 61 6e 61 74 6f 6d | 20 61 6e 64 20 28 6e 61 |^.anatom| and (na|
|00004820| 6d 65 73 5e 2e 6e 61 6d | 65 20 3d 20 27 4e 49 4c |mes^.nam|e = 'NIL|
|00004830| 20 20 20 20 20 20 20 27 | 29 0d 0a 00 00 00 00 00 | '|).......|
|00004840| 00 20 20 20 20 74 68 65 | 6e 20 62 69 6e 64 61 72 |. the|n bindar|
|00004850| 67 73 20 3a 3d 20 61 6c | 69 73 74 0d 0a 00 00 00 |gs := al|ist.....|
|00004860| 00 00 00 20 20 20 20 65 | 6c 73 65 0d 0a 00 00 00 |... e|lse.....|
|00004870| 00 00 00 20 20 20 20 20 | 20 62 65 67 69 6e 0d 0a |... | begin..|
|00004880| 00 00 00 00 00 00 20 20 | 20 20 20 20 20 20 74 65 |...... | te|
|00004890| 6d 70 20 3a 3d 20 63 6f | 6e 73 28 68 65 61 64 28 |mp := co|ns(head(|
|000048a0| 6e 61 6d 65 73 29 2c 20 | 65 76 61 6c 28 68 65 61 |names), |eval(hea|
|000048b0| 64 28 76 61 6c 75 65 73 | 29 2c 20 61 6c 69 73 74 |d(values|), alist|
|000048c0| 29 29 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |));.....|... |
|000048d0| 20 20 20 74 65 6d 70 32 | 20 3a 3d 20 62 69 6e 64 | temp2| := bind|
|000048e0| 61 72 67 73 28 74 61 69 | 6c 28 6e 61 6d 65 73 29 |args(tai|l(names)|
|000048f0| 2c 20 74 61 69 6c 28 76 | 61 6c 75 65 73 29 29 3b |, tail(v|alues));|
|00004900| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 20 20 |........| |
|00004910| 62 69 6e 64 61 72 67 73 | 20 3a 3d 20 63 6f 6e 73 |bindargs| := cons|
|00004920| 28 74 65 6d 70 2c 20 74 | 65 6d 70 32 29 0d 0a 00 |(temp, t|emp2)...|
|00004930| 00 00 00 00 00 20 20 20 | 20 20 20 65 6e 64 0d 0a |..... | end..|
|00004940| 00 00 00 00 00 00 20 20 | 65 6e 64 3b 20 7b 20 62 |...... |end; { b|
|00004950| 69 6e 64 61 72 67 73 20 | 7d 0d 0a 00 00 00 00 00 |indargs |}.......|
|00004960| 00 0d 0a 00 00 00 00 00 | 00 20 20 66 75 6e 63 74 |........|. funct|
|00004970| 69 6f 6e 20 65 76 63 6f | 6e 28 63 6f 6e 64 70 61 |ion evco|n(condpa|
|00004980| 69 72 73 20 3a 20 73 79 | 6d 62 65 78 70 70 74 72 |irs : sy|mbexpptr|
|00004990| 29 20 3a 20 73 79 6d 62 | 65 78 70 70 74 72 3b 0d |) : symb|expptr;.|
|000049a0| 0a 00 00 00 00 00 00 0d | 0a 00 00 00 00 00 00 20 |........|....... |
|000049b0| 20 76 61 72 0d 0a 00 00 | 00 00 00 00 20 20 20 20 | var....|.... |
|000049c0| 74 65 6d 70 20 3a 20 73 | 79 6d 62 65 78 70 70 74 |temp : s|ymbexppt|
|000049d0| 72 3b 0d 0a 00 00 00 00 | 00 00 0d 0a 00 00 00 00 |r;......|........|
|000049e0| 00 00 20 20 62 65 67 69 | 6e 0d 0a 00 00 00 00 00 |.. begi|n.......|
|000049f0| 00 20 20 20 20 74 65 6d | 70 20 3a 3d 20 65 76 61 |. tem|p := eva|
|00004a00| 6c 28 68 65 61 64 28 68 | 65 61 64 28 63 6f 6e 64 |l(head(h|ead(cond|
|00004a10| 70 61 69 72 73 29 29 2c | 20 61 6c 69 73 74 29 3b |pairs)),| alist);|
|00004a20| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 69 66 20 74 |........| if t|
|00004a30| 65 6d 70 5e 2e 61 6e 61 | 74 6f 6d 20 61 6e 64 20 |emp^.ana|tom and |
|00004a40| 28 74 65 6d 70 5e 2e 6e | 61 6d 65 20 3d 20 27 4e |(temp^.n|ame = 'N|
|00004a50| 49 4c 20 20 20 20 20 20 | 20 27 29 0d 0a 00 00 00 |IL | ').....|
|00004a60| 00 00 00 20 20 20 20 74 | 68 65 6e 20 65 76 63 6f |... t|hen evco|
|00004a70| 6e 20 3a 3d 20 65 76 63 | 6f 6e 28 74 61 69 6c 28 |n := evc|on(tail(|
|00004a80| 63 6f 6e 64 70 61 69 72 | 73 29 29 0d 0a 00 00 00 |condpair|s)).....|
|00004a90| 00 00 00 20 20 20 20 65 | 6c 73 65 20 65 76 63 6f |... e|lse evco|
|00004aa0| 6e 20 3a 3d 20 65 76 61 | 6c 28 68 65 61 64 28 74 |n := eva|l(head(t|
|00004ab0| 61 69 6c 28 68 65 61 64 | 28 63 6f 6e 64 70 61 69 |ail(head|(condpai|
|00004ac0| 72 73 29 29 29 2c 20 61 | 6c 69 73 74 29 0d 0a 00 |rs))), a|list)...|
|00004ad0| 00 00 00 00 00 20 20 65 | 6e 64 3b 20 7b 20 65 76 |..... e|nd; { ev|
|00004ae0| 63 6f 6e 20 7d 0d 0a 00 | 00 00 00 00 00 0d 0a 00 |con }...|........|
|00004af0| 00 00 00 00 00 62 65 67 | 69 6e 20 7b 20 20 20 20 |.....beg|in { |
|00004b00| 20 20 20 20 65 20 76 20 | 61 20 6c 20 20 20 20 20 | e v |a l |
|00004b10| 20 20 20 7d 0d 0a 00 00 | 00 00 00 00 20 20 69 66 | }....|.... if|
|00004b20| 20 65 5e 2e 61 6e 61 74 | 6f 6d 20 74 68 65 6e 20 | e^.anat|om then |
|00004b30| 65 76 61 6c 20 3a 3d 20 | 6c 6f 6f 6b 75 70 28 65 |eval := |lookup(e|
|00004b40| 2c 20 61 6c 69 73 74 29 | 0d 0a 00 00 00 00 00 00 |, alist)|........|
|00004b50| 20 20 65 6c 73 65 0d 0a | 00 00 00 00 00 00 20 20 | else..|...... |
|00004b60| 20 20 62 65 67 69 6e 0d | 0a 00 00 00 00 00 00 20 | begin.|....... |
|00004b70| 20 20 20 20 20 63 61 72 | 6f 66 65 20 3a 3d 20 68 | car|ofe := h|
|00004b80| 65 61 64 28 65 29 3b 0d | 0a 00 00 00 00 00 00 20 |ead(e);.|....... |
|00004b90| 20 20 20 20 20 69 66 20 | 63 61 72 6f 66 65 5e 2e | if |carofe^.|
|00004ba0| 61 6e 61 74 6f 6d 0d 0a | 00 00 00 00 00 00 20 20 |anatom..|...... |
|00004bb0| 20 20 20 20 74 68 65 6e | 0d 0a 00 00 00 00 00 00 | then|........|
|00004bc0| 20 20 20 20 20 20 20 20 | 69 66 20 6e 6f 74 20 63 | |if not c|
|00004bd0| 61 72 6f 66 65 5e 2e 69 | 73 61 72 65 73 65 72 76 |arofe^.i|sareserv|
|00004be0| 65 64 77 6f 72 64 0d 0a | 00 00 00 00 00 00 20 20 |edword..|...... |
|00004bf0| 20 20 20 20 20 20 74 68 | 65 6e 0d 0a 00 00 00 00 | th|en......|
|00004c00| 00 00 20 20 20 20 20 20 | 20 20 20 20 65 76 61 6c |.. | eval|
|00004c10| 20 3a 3d 20 65 76 61 6c | 28 63 6f 6e 73 28 6c 6f | := eval|(cons(lo|
|00004c20| 6f 6b 75 70 28 63 61 72 | 6f 66 65 2c 20 61 6c 69 |okup(car|ofe, ali|
|00004c30| 73 74 29 2c 20 74 61 69 | 6c 28 65 29 29 2c 20 61 |st), tai|l(e)), a|
|00004c40| 6c 69 73 74 29 0d 0a 00 | 00 00 00 00 00 20 20 20 |list)...|..... |
|00004c50| 20 20 20 20 20 65 6c 73 | 65 0d 0a 00 00 00 00 00 | els|e.......|
|00004c60| 00 20 20 20 20 20 20 20 | 20 20 20 63 61 73 65 20 |. | case |
|00004c70| 63 61 72 6f 66 65 5e 2e | 72 65 73 73 79 6d 20 6f |carofe^.|ressym o|
|00004c80| 66 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |f.......|. |
|00004c90| 20 20 20 20 20 6c 61 62 | 65 6c 73 79 6d 2c 20 6c | lab|elsym, l|
|00004ca0| 61 6d 62 64 61 73 79 6d | 20 3a 20 65 72 72 6f 72 |ambdasym| : error|
|00004cb0| 28 33 29 3b 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |(3);....|.... |
|00004cc0| 20 20 20 20 20 20 20 20 | 71 75 6f 74 65 73 79 6d | |quotesym|
|00004cd0| 20 3a 20 65 76 61 6c 20 | 3a 3d 20 68 65 61 64 28 | : eval |:= head(|
|00004ce0| 74 61 69 6c 28 65 29 29 | 3b 0d 0a 00 00 00 00 00 |tail(e))|;.......|
|00004cf0| 00 20 20 20 20 20 20 20 | 20 20 20 20 20 61 74 6f |. | ato|
|00004d00| 6d 73 79 6d 20 20 3a 20 | 65 76 61 6c 20 3a 3d 20 |msym : |eval := |
|00004d10| 61 74 6f 6d 28 65 76 61 | 6c 28 68 65 61 64 28 74 |atom(eva|l(head(t|
|00004d20| 61 69 6c 28 65 29 29 2c | 20 61 6c 69 73 74 29 29 |ail(e)),| alist))|
|00004d30| 3b 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |;.......|. |
|00004d40| 20 20 20 20 20 65 71 73 | 79 6d 20 20 20 20 3a 20 | eqs|ym : |
|00004d50| 65 76 61 6c 20 3a 3d 20 | 65 71 71 28 65 76 61 6c |eval := |eqq(eval|
|00004d60| 28 68 65 61 64 28 74 61 | 69 6c 28 65 29 29 2c 20 |(head(ta|il(e)), |
|00004d70| 61 6c 69 73 74 29 2c 20 | 65 76 61 6c 28 68 65 61 |alist), |eval(hea|
|00004d80| 64 28 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |d(......|.. |
|00004d90| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00004da0| 20 74 61 69 6c 28 74 61 | 69 6c 28 65 29 29 29 2c | tail(ta|il(e))),|
|00004db0| 20 61 6c 69 73 74 29 29 | 3b 0d 0a 00 00 00 00 00 | alist))|;.......|
|00004dc0| 00 20 20 20 20 20 20 20 | 20 20 20 20 20 68 65 61 |. | hea|
|00004dd0| 64 73 79 6d 20 20 3a 20 | 65 76 61 6c 20 3a 3d 20 |dsym : |eval := |
|00004de0| 68 65 61 64 28 65 76 61 | 6c 28 68 65 61 64 28 74 |head(eva|l(head(t|
|00004df0| 61 69 6c 28 65 29 29 2c | 20 61 6c 69 73 74 29 29 |ail(e)),| alist))|
|00004e00| 3b 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |;.......|. |
|00004e10| 20 20 20 20 20 74 61 69 | 6c 73 79 6d 20 20 3a 20 | tai|lsym : |
|00004e20| 65 76 61 6c 20 3a 3d 20 | 74 61 69 6c 28 65 76 61 |eval := |tail(eva|
|00004e30| 6c 28 68 65 61 64 28 74 | 61 69 6c 28 65 29 29 2c |l(head(t|ail(e)),|
|00004e40| 20 61 6c 69 73 74 29 29 | 3b 0d 0a 00 00 00 00 00 | alist))|;.......|
|00004e50| 00 20 20 20 20 20 20 20 | 20 20 20 20 20 63 6f 6e |. | con|
|00004e60| 73 73 79 6d 20 20 3a 20 | 65 76 61 6c 20 3a 3d 20 |ssym : |eval := |
|00004e70| 63 6f 6e 73 28 65 76 61 | 6c 28 68 65 61 64 28 74 |cons(eva|l(head(t|
|00004e80| 61 69 6c 28 65 29 29 2c | 20 61 6c 69 73 74 29 2c |ail(e)),| alist),|
|00004e90| 20 65 76 61 6c 28 68 65 | 61 64 28 0d 0a 00 00 00 | eval(he|ad(.....|
|00004ea0| 00 00 00 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |... | |
|00004eb0| 20 20 20 20 20 20 20 20 | 20 20 74 61 69 6c 28 74 | | tail(t|
|00004ec0| 61 69 6c 28 65 29 29 29 | 2c 20 61 6c 69 73 74 29 |ail(e)))|, alist)|
|00004ed0| 29 3b 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |);......|.. |
|00004ee0| 20 20 20 20 20 20 63 6f | 6e 64 73 79 6d 20 20 3a | co|ndsym :|
|00004ef0| 20 65 76 61 6c 20 3a 3d | 20 65 76 63 6f 6e 28 74 | eval :=| evcon(t|
|00004f00| 61 69 6c 28 65 29 29 3b | 0d 0a 00 00 00 00 00 00 |ail(e));|........|
|00004f10| 20 20 20 20 20 20 20 20 | 20 20 20 20 61 70 70 65 | | appe|
|00004f20| 6e 64 73 79 6d 3a 20 65 | 76 61 6c 20 3a 3d 20 61 |ndsym: e|val := a|
|00004f30| 70 70 65 6e 64 28 65 76 | 61 6c 28 68 65 61 64 28 |ppend(ev|al(head(|
|00004f40| 74 61 69 6c 28 65 29 29 | 2c 20 61 6c 69 73 74 29 |tail(e))|, alist)|
|00004f50| 2c 20 65 76 61 6c 28 68 | 65 61 64 28 0d 0a 00 00 |, eval(h|ead(....|
|00004f60| 00 00 00 00 20 20 20 20 | 20 20 20 20 20 20 20 20 |.... | |
|00004f70| 20 20 20 20 20 20 20 20 | 20 20 20 74 61 69 6c 28 | | tail(|
|00004f80| 74 61 69 6c 28 65 29 29 | 29 2c 20 61 6c 69 73 74 |tail(e))|), alist|
|00004f90| 29 29 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |));.....|... |
|00004fa0| 20 20 20 20 20 20 20 72 | 65 70 6c 61 63 65 68 73 | r|eplacehs|
|00004fb0| 79 6d 3a 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |ym:.....|... |
|00004fc0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00004fd0| 20 20 65 76 61 6c 20 3a | 3d 20 72 65 70 6c 61 63 | eval :|= replac|
|00004fe0| 65 68 28 65 76 61 6c 28 | 68 65 61 64 28 74 61 69 |eh(eval(|head(tai|
|00004ff0| 6c 28 65 29 29 2c 20 61 | 6c 69 73 74 29 2c 20 65 |l(e)), a|list), e|
|00005000| 76 61 6c 28 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |val(....|.... |
|00005010| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005020| 20 20 20 20 20 20 20 20 | 20 20 20 68 65 61 64 28 | | head(|
|00005030| 74 61 69 6c 28 74 61 69 | 6c 28 65 29 29 29 2c 20 |tail(tai|l(e))), |
|00005040| 61 6c 69 73 74 29 29 3b | 0d 0a 00 00 00 00 00 00 |alist));|........|
|00005050| 20 20 20 20 20 20 20 20 | 20 20 20 20 72 65 70 6c | | repl|
|00005060| 61 63 65 74 73 79 6d 3a | 0d 0a 00 00 00 00 00 00 |acetsym:|........|
|00005070| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005080| 20 20 20 20 20 20 20 65 | 76 61 6c 20 3a 3d 20 72 | e|val := r|
|00005090| 65 70 6c 61 63 65 74 28 | 65 76 61 6c 28 68 65 61 |eplacet(|eval(hea|
|000050a0| 64 28 74 61 69 6c 28 65 | 29 29 2c 20 61 6c 69 73 |d(tail(e|)), alis|
|000050b0| 74 29 2c 20 65 76 61 6c | 28 68 65 61 64 28 0d 0a |t), eval|(head(..|
|000050c0| 00 00 00 00 00 00 20 20 | 20 20 20 20 20 20 20 20 |...... | |
|000050d0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000050e0| 20 20 20 20 20 74 61 69 | 6c 28 74 61 69 6c 28 65 | tai|l(tail(e|
|000050f0| 29 29 29 2c 20 61 6c 69 | 73 74 29 29 0d 0a 00 00 |))), ali|st))....|
|00005100| 00 00 00 00 20 20 20 20 | 20 20 20 20 20 65 6e 64 |.... | end|
|00005110| 20 20 7b 20 63 61 73 65 | 20 7d 0d 0a 00 00 00 00 | { case| }......|
|00005120| 00 00 20 20 20 20 20 20 | 20 65 6c 73 65 0d 0a 00 |.. | else...|
|00005130| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 20 62 65 |..... | be|
|00005140| 67 69 6e 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |gin.....|... |
|00005150| 20 20 20 20 20 20 63 61 | 61 72 6f 66 65 20 3a 3d | ca|arofe :=|
|00005160| 20 68 65 61 64 28 63 61 | 72 6f 66 65 29 3b 0d 0a | head(ca|rofe);..|
|00005170| 00 00 00 00 00 00 20 20 | 20 20 20 20 20 20 20 20 |...... | |
|00005180| 20 69 66 20 63 61 61 72 | 6f 66 65 5e 2e 61 6e 61 | if caar|ofe^.ana|
|00005190| 74 6f 6d 20 61 6e 64 20 | 63 61 61 72 6f 66 65 5e |tom and |caarofe^|
|000051a0| 2e 69 73 61 72 65 73 65 | 72 76 65 64 77 6f 72 64 |.isarese|rvedword|
|000051b0| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 20 20 |........| |
|000051c0| 20 20 20 74 68 65 6e 0d | 0a 00 00 00 00 00 00 20 | then.|....... |
|000051d0| 20 20 20 20 20 20 20 20 | 20 20 20 20 69 66 20 6e | | if n|
|000051e0| 6f 74 20 28 63 61 61 72 | 6f 66 65 5e 2e 72 65 73 |ot (caar|ofe^.res|
|000051f0| 73 79 6d 20 69 6e 20 5b | 6c 61 62 65 6c 73 79 6d |sym in [|labelsym|
|00005200| 2c 20 6c 61 6d 62 64 61 | 73 79 6d 5d 29 0d 0a 00 |, lambda|sym])...|
|00005210| 00 00 00 00 00 20 20 20 | 20 20 20 20 20 20 20 20 |..... | |
|00005220| 20 20 74 68 65 6e 20 65 | 72 72 6f 72 28 31 32 29 | then e|rror(12)|
|00005230| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 20 20 |........| |
|00005240| 20 20 20 20 20 65 6c 73 | 65 0d 0a 00 00 00 00 00 | els|e.......|
|00005250| 00 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |. | |
|00005260| 63 61 73 65 20 63 61 61 | 72 6f 66 65 5e 2e 72 65 |case caa|rofe^.re|
|00005270| 73 73 79 6d 20 6f 66 0d | 0a 00 00 00 00 00 00 20 |ssym of.|....... |
|00005280| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005290| 6c 61 62 65 6c 73 79 6d | 20 3a 0d 0a 00 00 00 00 |labelsym| :......|
|000052a0| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |.. | |
|000052b0| 20 20 20 20 20 62 65 67 | 69 6e 0d 0a 00 00 00 00 | beg|in......|
|000052c0| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |.. | |
|000052d0| 20 20 20 20 20 20 20 74 | 65 6d 70 20 3a 3d 20 63 | t|emp := c|
|000052e0| 6f 6e 73 28 63 6f 6e 73 | 28 68 65 61 64 28 74 61 |ons(cons|(head(ta|
|000052f0| 69 6c 28 63 61 72 6f 66 | 65 29 29 2c 20 68 65 61 |il(carof|e)), hea|
|00005300| 64 28 74 61 69 6c 28 0d | 0a 00 00 00 00 00 00 20 |d(tail(.|....... |
|00005310| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005320| 20 20 20 20 20 20 20 20 | 20 20 20 20 74 61 69 6c | | tail|
|00005330| 28 63 61 72 6f 66 65 29 | 29 29 29 2c 20 61 6c 69 |(carofe)|))), ali|
|00005340| 73 74 29 3b 0d 0a 00 00 | 00 00 00 00 20 20 20 20 |st);....|.... |
|00005350| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005360| 20 65 76 61 6c 20 3a 3d | 20 65 76 61 6c 28 63 6f | eval :=| eval(co|
|00005370| 6e 73 28 68 65 61 64 28 | 74 61 69 6c 28 74 61 69 |ns(head(|tail(tai|
|00005380| 6c 28 63 61 72 6f 66 65 | 29 29 29 2c 20 74 61 69 |l(carofe|))), tai|
|00005390| 6c 28 65 29 29 2c 74 65 | 6d 70 29 0d 0a 00 00 00 |l(e)),te|mp).....|
|000053a0| 00 00 00 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |... | |
|000053b0| 20 20 20 20 20 20 20 65 | 6e 64 3b 0d 0a 00 00 00 | e|nd;.....|
|000053c0| 00 00 00 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |... | |
|000053d0| 20 20 20 20 6c 61 6d 62 | 64 61 73 79 6d 20 3a 0d | lamb|dasym :.|
|000053e0| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|000053f0| 20 20 20 20 20 20 20 20 | 20 20 62 65 67 69 6e 0d | | begin.|
|00005400| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00005410| 20 20 20 20 20 20 20 20 | 20 20 20 20 74 65 6d 70 | | temp|
|00005420| 20 3a 3d 20 62 69 6e 64 | 61 72 67 73 28 68 65 61 | := bind|args(hea|
|00005430| 64 28 74 61 69 6c 28 63 | 61 72 6f 66 65 29 29 2c |d(tail(c|arofe)),|
|00005440| 20 74 61 69 6c 28 65 29 | 29 3b 0d 0a 00 00 00 00 | tail(e)|);......|
|00005450| 00 00 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |.. | |
|00005460| 20 20 20 20 20 20 20 65 | 76 61 6c 20 3a 3d 20 65 | e|val := e|
|00005470| 76 61 6c 28 68 65 61 64 | 28 74 61 69 6c 28 74 61 |val(head|(tail(ta|
|00005480| 69 6c 28 63 61 72 6f 66 | 65 29 29 29 2c 20 74 65 |il(carof|e))), te|
|00005490| 6d 70 29 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |mp).....|... |
|000054a0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 65 6e | | en|
|000054b0| 64 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 20 |d.......|. |
|000054c0| 20 20 20 20 20 20 20 20 | 20 65 6e 64 20 20 7b 20 | | end { |
|000054d0| 63 61 73 65 20 7d 0d 0a | 00 00 00 00 00 00 20 20 |case }..|...... |
|000054e0| 20 20 20 20 20 20 20 20 | 20 20 20 20 65 6c 73 65 | | else|
|000054f0| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 20 20 20 20 |........| |
|00005500| 20 20 20 20 20 20 20 20 | 65 76 61 6c 20 3a 3d 20 | |eval := |
|00005510| 65 76 61 6c 28 63 6f 6e | 73 28 65 76 61 6c 28 63 |eval(con|s(eval(c|
|00005520| 61 72 6f 66 65 2c 20 61 | 6c 69 73 74 29 2c 20 74 |arofe, a|list), t|
|00005530| 61 69 6c 28 65 29 29 2c | 20 61 6c 69 73 74 29 0d |ail(e)),| alist).|
|00005540| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 20 20 |....... | |
|00005550| 20 20 20 65 6e 64 0d 0a | 00 00 00 00 00 00 20 20 | end..|...... |
|00005560| 20 20 20 20 20 20 20 20 | 65 6e 64 0d 0a 00 00 00 | |end.....|
|00005570| 00 00 00 20 20 65 6e 64 | 3b 20 7b 20 65 20 76 20 |... end|; { e v |
|00005580| 61 20 6c 20 7d 0d 0a 00 | 00 00 00 00 00 0d 0a 00 |a l }...|........|
|00005590| 00 00 00 00 00 70 72 6f | 63 65 64 75 72 65 20 69 |.....pro|cedure i|
|000055a0| 6e 69 74 69 61 6c 69 7a | 65 3b 0d 0a 00 00 00 00 |nitializ|e;......|
|000055b0| 00 00 0d 0a 00 00 00 00 | 00 00 76 61 72 0d 0a 00 |........|..var...|
|000055c0| 00 00 00 00 00 20 20 69 | 20 3a 20 69 6e 74 65 67 |..... i| : integ|
|000055d0| 65 72 3b 0d 0a 00 00 00 | 00 00 00 20 20 74 65 6d |er;.....|... tem|
|000055e0| 70 2c 20 6e 78 74 20 3a | 20 73 79 6d 62 65 78 70 |p, nxt :| symbexp|
|000055f0| 70 74 72 3b 0d 0a 00 00 | 00 00 00 00 0d 0a 00 00 |ptr;....|........|
|00005600| 00 00 00 00 62 65 67 69 | 6e 0d 0a 00 00 00 00 00 |....begi|n.......|
|00005610| 00 20 20 61 6c 72 65 61 | 64 79 70 65 65 6b 65 64 |. alrea|dypeeked|
|00005620| 20 3a 3d 20 66 61 6c 73 | 65 3b 20 20 72 65 61 64 | := fals|e; read|
|00005630| 28 63 68 29 3b 20 20 28 | 2a 20 77 72 69 74 65 28 |(ch); (|* write(|
|00005640| 63 68 29 3b 20 2a 29 20 | 20 6e 75 6d 62 65 72 6f |ch); *) | numbero|
|00005650| 66 67 63 73 20 3a 3d 20 | 30 3b 0d 0a 00 00 00 00 |fgcs := |0;......|
|00005660| 00 00 20 20 66 72 65 65 | 6e 6f 64 65 73 20 3a 3d |.. free|nodes :=|
|00005670| 20 6d 61 78 6e 6f 64 65 | 3b 0d 0a 00 00 00 00 00 | maxnode|;.......|
|00005680| 00 20 20 77 69 74 68 20 | 6e 69 6c 6e 6f 64 65 20 |. with |nilnode |
|00005690| 64 6f 0d 0a 00 00 00 00 | 00 00 20 20 20 20 62 65 |do......|.. be|
|000056a0| 67 69 6e 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |gin.....|... |
|000056b0| 20 61 6e 61 74 6f 6d 20 | 3a 3d 20 74 72 75 65 3b | anatom |:= true;|
|000056c0| 20 6e 65 78 74 20 3a 3d | 20 6e 69 6c 3b 20 6e 61 | next :=| nil; na|
|000056d0| 6d 65 20 3a 3d 20 27 4e | 49 4c 20 20 20 20 20 20 |me := 'N|IL |
|000056e0| 20 27 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 | ';.....|... |
|000056f0| 20 73 74 61 74 75 73 20 | 3a 3d 20 75 6e 6d 61 72 | status |:= unmar|
|00005700| 6b 65 64 3b 20 20 69 73 | 61 72 65 73 65 72 76 65 |ked; is|areserve|
|00005710| 64 77 6f 72 64 20 3a 3d | 20 66 61 6c 73 65 0d 0a |dword :=| false..|
|00005720| 00 00 00 00 00 00 20 20 | 20 20 65 6e 64 3b 0d 0a |...... | end;..|
|00005730| 00 00 00 00 00 00 20 20 | 77 69 74 68 20 74 6e 6f |...... |with tno|
|00005740| 64 65 20 64 6f 0d 0a 00 | 00 00 00 00 00 20 20 20 |de do...|..... |
|00005750| 20 62 65 67 69 6e 0d 0a | 00 00 00 00 00 00 20 20 | begin..|...... |
|00005760| 20 20 20 20 61 6e 61 74 | 6f 6d 20 3a 3d 20 74 72 | anat|om := tr|
|00005770| 75 65 3b 20 20 6e 65 78 | 74 20 3a 3d 20 6e 69 6c |ue; nex|t := nil|
|00005780| 3b 20 20 6e 61 6d 65 20 | 3a 3d 20 27 54 20 20 20 |; name |:= 'T |
|00005790| 20 20 20 20 20 20 27 3b | 0d 0a 00 00 00 00 00 00 | ';|........|
|000057a0| 20 20 20 20 20 20 73 74 | 61 74 75 73 20 3a 3d 20 | st|atus := |
|000057b0| 75 6e 6d 61 72 6b 65 64 | 3b 20 20 69 73 61 72 65 |unmarked|; isare|
|000057c0| 73 65 72 76 65 64 77 6f | 72 64 20 3a 3d 20 66 61 |servedwo|rd := fa|
|000057d0| 6c 73 65 0d 0a 00 00 00 | 00 00 00 20 20 20 20 65 |lse.....|... e|
|000057e0| 6e 64 3b 0d 0a 00 00 00 | 00 00 00 7b 20 2d 20 2d |nd;.....|...{ - -|
|000057f0| 20 2d 20 2d 20 61 6c 6c | 6f 63 61 74 65 20 73 74 | - - all|ocate st|
|00005800| 6f 72 61 67 65 20 61 6e | 64 20 6d 61 72 6b 20 69 |orage an|d mark i|
|00005810| 74 20 66 72 65 65 20 20 | 7d 0d 0a 00 00 00 00 00 |t free |}.......|
|00005820| 00 20 20 66 72 65 65 6c | 69 73 74 20 3a 3d 20 6e |. freel|ist := n|
|00005830| 69 6c 3b 0d 0a 00 00 00 | 00 00 00 20 20 66 6f 72 |il;.....|... for|
|00005840| 20 69 20 3a 3d 20 31 20 | 74 6f 20 6d 61 78 6e 6f | i := 1 |to maxno|
|00005850| 64 65 20 64 6f 0d 0a 00 | 00 00 00 00 00 20 20 20 |de do...|..... |
|00005860| 20 62 65 67 69 6e 0d 0a | 00 00 00 00 00 00 20 20 | begin..|...... |
|00005870| 20 20 20 20 6e 65 77 28 | 6e 6f 64 65 6c 69 73 74 | new(|nodelist|
|00005880| 29 3b 20 20 6e 6f 64 65 | 6c 69 73 74 5e 2e 6e 65 |); node|list^.ne|
|00005890| 78 74 20 3a 3d 20 66 72 | 65 65 6c 69 73 74 3b 0d |xt := fr|eelist;.|
|000058a0| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 6e 6f 64 |....... | nod|
|000058b0| 65 6c 69 73 74 5e 2e 68 | 65 61 64 20 3a 3d 20 66 |elist^.h|ead := f|
|000058c0| 72 65 65 6c 69 73 74 3b | 20 20 6e 6f 64 65 6c 69 |reelist;| nodeli|
|000058d0| 73 74 5e 2e 73 74 61 74 | 75 73 20 3a 3d 20 75 6e |st^.stat|us := un|
|000058e0| 6d 61 72 6b 65 64 3b 0d | 0a 00 00 00 00 00 00 20 |marked;.|....... |
|000058f0| 20 20 20 20 20 66 72 65 | 65 6c 69 73 74 20 3a 3d | fre|elist :=|
|00005900| 20 6e 6f 64 65 6c 69 73 | 74 3b 0d 0a 00 00 00 00 | nodelis|t;......|
|00005910| 00 00 20 20 20 20 65 6e | 64 3b 0d 0a 00 00 00 00 |.. en|d;......|
|00005920| 00 00 20 20 7b 20 2d 20 | 2d 20 2d 20 2d 20 20 69 |.. { - |- - - i|
|00005930| 6e 69 74 69 61 6c 69 7a | 65 20 72 65 73 65 72 76 |nitializ|e reserv|
|00005940| 65 64 20 77 6f 72 64 20 | 74 61 62 6c 65 20 7d 0d |ed word |table }.|
|00005950| 0a 00 00 00 00 00 00 20 | 20 20 20 72 65 73 77 6f |....... | reswo|
|00005960| 72 64 73 5b 72 65 70 6c | 61 63 65 68 73 79 6d 5d |rds[repl|acehsym]|
|00005970| 20 3a 3d 20 27 52 45 50 | 4c 41 43 45 48 20 20 27 | := 'REP|LACEH '|
|00005980| 3b 0d 0a 00 00 00 00 00 | 00 20 20 20 20 72 65 73 |;.......|. res|
|00005990| 77 6f 72 64 73 5b 72 65 | 70 6c 61 63 65 74 73 79 |words[re|placetsy|
|000059a0| 6d 5d 20 3a 3d 20 27 52 | 45 50 4c 41 43 45 54 20 |m] := 'R|EPLACET |
|000059b0| 20 27 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 72 | ';.....|... r|
|000059c0| 65 73 77 6f 72 64 73 5b | 68 65 61 64 73 79 6d 5d |eswords[|headsym]|
|000059d0| 20 20 20 20 20 3a 3d 20 | 27 43 41 52 20 20 20 20 | := |'CAR |
|000059e0| 20 20 20 27 3b 0d 0a 00 | 00 00 00 00 00 20 20 20 | ';...|..... |
|000059f0| 20 72 65 73 77 6f 72 64 | 73 5b 74 61 69 6c 73 79 | resword|s[tailsy|
|00005a00| 6d 5d 20 20 20 20 20 3a | 3d 20 27 43 44 52 20 20 |m] :|= 'CDR |
|00005a10| 20 20 20 20 20 27 3b 0d | 0a 00 00 00 00 00 00 20 | ';.|....... |
|00005a20| 20 20 20 72 65 73 77 6f | 72 64 73 5b 63 6f 70 79 | reswo|rds[copy|
|00005a30| 73 79 6d 5d 20 20 20 20 | 20 3a 3d 20 27 43 4f 50 |sym] | := 'COP|
|00005a40| 59 20 20 20 20 20 20 27 | 3b 0d 0a 00 00 00 00 00 |Y '|;.......|
|00005a50| 00 20 20 20 20 72 65 73 | 77 6f 72 64 73 5b 61 70 |. res|words[ap|
|00005a60| 70 65 6e 64 73 79 6d 5d | 20 20 20 3a 3d 20 27 41 |pendsym]| := 'A|
|00005a70| 50 50 45 4e 44 20 20 20 | 20 27 3b 0d 0a 00 00 00 |PPEND | ';.....|
|00005a80| 00 00 00 20 20 20 20 72 | 65 73 77 6f 72 64 73 5b |... r|eswords[|
|00005a90| 63 6f 6e 63 73 79 6d 5d | 20 20 20 20 20 3a 3d 20 |concsym]| := |
|00005aa0| 27 43 4f 4e 43 20 20 20 | 20 20 20 27 3b 0d 0a 00 |'CONC | ';...|
|00005ab0| 00 00 00 00 00 20 20 20 | 20 72 65 73 77 6f 72 64 |..... | resword|
|00005ac0| 73 5b 63 6f 6e 73 73 79 | 6d 5d 20 20 20 20 20 3a |s[conssy|m] :|
|00005ad0| 3d 20 27 43 4f 4e 53 20 | 20 20 20 20 20 27 3b 0d |= 'CONS | ';.|
|00005ae0| 0a 00 00 00 00 00 00 20 | 20 20 20 72 65 73 77 6f |....... | reswo|
|00005af0| 72 64 73 5b 65 71 73 79 | 6d 5d 20 20 20 20 20 20 |rds[eqsy|m] |
|00005b00| 20 3a 3d 20 27 45 51 20 | 20 20 20 20 20 20 20 27 | := 'EQ | '|
|00005b10| 3b 0d 0a 00 00 00 00 00 | 00 20 20 20 20 72 65 73 |;.......|. res|
|00005b20| 77 6f 72 64 73 5b 71 75 | 6f 74 65 73 79 6d 5d 20 |words[qu|otesym] |
|00005b30| 20 20 20 3a 3d 20 27 51 | 55 4f 54 45 20 20 20 20 | := 'Q|UOTE |
|00005b40| 20 27 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 72 | ';.....|... r|
|00005b50| 65 73 77 6f 72 64 73 5b | 61 74 6f 6d 73 79 6d 5d |eswords[|atomsym]|
|00005b60| 20 20 20 20 20 3a 3d 20 | 27 41 54 4f 4d 20 20 20 | := |'ATOM |
|00005b70| 20 20 20 27 3b 0d 0a 00 | 00 00 00 00 00 20 20 20 | ';...|..... |
|00005b80| 20 72 65 73 77 6f 72 64 | 73 5b 63 6f 6e 64 73 79 | resword|s[condsy|
|00005b90| 6d 5d 20 20 20 20 20 3a | 3d 20 27 43 4f 4e 44 20 |m] :|= 'COND |
|00005ba0| 20 20 20 20 20 27 3b 0d | 0a 00 00 00 00 00 00 20 | ';.|....... |
|00005bb0| 20 20 20 72 65 73 77 6f | 72 64 73 5b 6c 61 62 65 | reswo|rds[labe|
|00005bc0| 6c 73 79 6d 5d 20 20 20 | 20 3a 3d 20 27 4c 41 42 |lsym] | := 'LAB|
|00005bd0| 45 4c 20 20 20 20 20 27 | 3b 0d 0a 00 00 00 00 00 |EL '|;.......|
|00005be0| 00 20 20 20 20 72 65 73 | 77 6f 72 64 73 5b 6c 61 |. res|words[la|
|00005bf0| 6d 62 64 61 73 79 6d 5d | 20 20 20 3a 3d 20 27 4c |mbdasym]| := 'L|
|00005c00| 41 4d 42 44 41 20 20 20 | 20 27 3b 0d 0a 00 00 00 |AMBDA | ';.....|
|00005c10| 00 00 00 0d 0a 00 00 00 | 00 00 00 7b 20 2d 20 2d |........|...{ - -|
|00005c20| 20 2d 20 2d 20 20 69 6e | 69 74 69 61 6c 69 7a 65 | - - in|itialize|
|00005c30| 20 74 68 65 20 61 2d 6c | 69 73 74 20 77 69 74 68 | the a-l|ist with|
|00005c40| 20 74 20 61 6e 64 20 6e | 69 6c 20 20 7d 0d 0a 00 | t and n|il }...|
|00005c50| 00 00 00 00 00 20 20 70 | 6f 70 28 61 6c 69 73 74 |..... p|op(alist|
|00005c60| 29 3b 20 20 61 6c 69 73 | 74 5e 2e 61 6e 61 74 6f |); alis|t^.anato|
|00005c70| 6d 20 3a 3d 20 66 61 6c | 73 65 3b 20 20 61 6c 69 |m := fal|se; ali|
|00005c80| 73 74 5e 2e 73 74 61 74 | 75 73 20 3a 3d 20 75 6e |st^.stat|us := un|
|00005c90| 6d 61 72 6b 65 64 3b 0d | 0a 00 00 00 00 00 00 20 |marked;.|....... |
|00005ca0| 20 70 6f 70 28 61 6c 69 | 73 74 5e 2e 74 61 69 6c | pop(ali|st^.tail|
|00005cb0| 29 3b 20 20 6e 78 74 20 | 3a 3d 20 61 6c 69 73 74 |); nxt |:= alist|
|00005cc0| 5e 2e 74 61 69 6c 5e 2e | 6e 65 78 74 3b 0d 0a 00 |^.tail^.|next;...|
|00005cd0| 00 00 00 00 00 20 20 61 | 6c 69 73 74 5e 2e 74 61 |..... a|list^.ta|
|00005ce0| 69 6c 5e 20 3a 3d 20 6e | 69 6c 6e 6f 64 65 3b 20 |il^ := n|ilnode; |
|00005cf0| 20 61 6c 69 73 74 5e 2e | 74 61 69 6c 5e 2e 6e 65 | alist^.|tail^.ne|
|00005d00| 78 74 20 3a 3d 20 6e 78 | 74 3b 0d 0a 00 00 00 00 |xt := nx|t;......|
|00005d10| 00 00 20 20 70 6f 70 28 | 61 6c 69 73 74 5e 2e 68 |.. pop(|alist^.h|
|00005d20| 65 61 64 29 3b 0d 0a 00 | 00 00 00 00 00 0d 0a 00 |ead);...|........|
|00005d30| 00 00 00 00 00 7b 20 2d | 20 2d 20 2d 20 2d 20 20 |.....{ -| - - - |
|00005d40| 62 69 6e 64 20 6e 69 6c | 20 74 6f 20 74 68 65 20 |bind nil| to the |
|00005d50| 61 74 6f 6d 20 6e 69 6c | 20 20 7d 0d 0a 00 00 00 |atom nil| }.....|
|00005d60| 00 00 00 0d 0a 00 00 00 | 00 00 00 20 20 77 69 74 |........|... wit|
|00005d70| 68 20 61 6c 69 73 74 5e | 2e 68 65 61 64 5e 20 64 |h alist^|.head^ d|
|00005d80| 6f 0d 0a 00 00 00 00 00 | 00 20 20 20 20 62 65 67 |o.......|. beg|
|00005d90| 69 6e 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |in......|.. |
|00005da0| 61 6e 61 74 6f 6d 20 3a | 3d 20 66 61 6c 73 65 3b |anatom :|= false;|
|00005db0| 20 20 73 74 61 74 75 73 | 20 3a 3d 20 75 6e 6d 61 | status| := unma|
|00005dc0| 72 6b 65 64 3b 20 20 70 | 6f 70 28 68 65 61 64 29 |rked; p|op(head)|
|00005dd0| 3b 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 6e |;.......|. n|
|00005de0| 78 74 20 3a 3d 20 68 65 | 61 64 5e 2e 6e 65 78 74 |xt := he|ad^.next|
|00005df0| 3b 20 20 68 65 61 64 5e | 20 3a 3d 20 6e 69 6c 6e |; head^| := niln|
|00005e00| 6f 64 65 3b 20 20 68 65 | 61 64 5e 2e 6e 65 78 74 |ode; he|ad^.next|
|00005e10| 20 3a 3d 20 6e 78 74 3b | 0d 0a 00 00 00 00 00 00 | := nxt;|........|
|00005e20| 20 20 20 20 20 20 70 6f | 70 28 74 61 69 6c 29 3b | po|p(tail);|
|00005e30| 20 6e 78 74 20 3a 3d 20 | 74 61 69 6c 5e 2e 6e 65 | nxt := |tail^.ne|
|00005e40| 78 74 3b 20 74 61 69 6c | 5e 20 3a 3d 20 6e 69 6c |xt; tail|^ := nil|
|00005e50| 6e 6f 64 65 3b 0d 0a 00 | 00 00 00 00 00 20 20 20 |node;...|..... |
|00005e60| 20 20 20 74 61 69 6c 5e | 2e 6e 65 78 74 20 3a 3d | tail^|.next :=|
|00005e70| 20 6e 78 74 0d 0a 00 00 | 00 00 00 00 20 20 20 20 | nxt....|.... |
|00005e80| 65 6e 64 3b 0d 0a 00 00 | 00 00 00 00 20 20 70 6f |end;....|.... po|
|00005e90| 70 28 74 65 6d 70 29 3b | 20 20 74 65 6d 70 5e 2e |p(temp);| temp^.|
|00005ea0| 61 6e 61 74 6f 6d 20 3a | 3d 20 66 61 6c 73 65 3b |anatom :|= false;|
|00005eb0| 20 20 74 65 6d 70 5e 2e | 73 74 61 74 75 73 20 3a | temp^.|status :|
|00005ec0| 3d 20 75 6e 6d 61 72 6b | 65 64 3b 0d 0a 00 00 00 |= unmark|ed;.....|
|00005ed0| 00 00 00 20 20 74 65 6d | 70 5e 2e 74 61 69 6c 20 |... tem|p^.tail |
|00005ee0| 3a 3d 20 61 6c 69 73 74 | 3b 20 20 61 6c 69 73 74 |:= alist|; alist|
|00005ef0| 20 3a 3d 20 74 65 6d 70 | 3b 20 20 70 6f 70 28 61 | := temp|; pop(a|
|00005f00| 6c 69 73 74 5e 2e 68 65 | 61 64 29 3b 0d 0a 00 00 |list^.he|ad);....|
|00005f10| 00 00 00 00 0d 0a 00 00 | 00 00 00 00 7b 20 2d 20 |........|....{ - |
|00005f20| 2d 20 2d 20 2d 20 62 69 | 6e 64 20 74 20 74 6f 20 |- - - bi|nd t to |
|00005f30| 74 68 65 20 61 74 6f 6d | 20 74 20 7d 0d 0a 00 00 |the atom| t }....|
|00005f40| 00 00 00 00 0d 0a 00 00 | 00 00 00 00 20 20 77 69 |........|.... wi|
|00005f50| 74 68 20 61 6c 69 73 74 | 5e 2e 68 65 61 64 5e 20 |th alist|^.head^ |
|00005f60| 64 6f 0d 0a 00 00 00 00 | 00 00 20 20 20 20 62 65 |do......|.. be|
|00005f70| 67 69 6e 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |gin.....|... |
|00005f80| 20 61 6e 61 74 6f 6d 20 | 3a 3d 20 66 61 6c 73 65 | anatom |:= false|
|00005f90| 3b 20 20 73 74 61 74 75 | 73 20 3a 3d 20 75 6e 6d |; statu|s := unm|
|00005fa0| 61 72 6b 65 64 3b 20 70 | 6f 70 28 68 65 61 64 29 |arked; p|op(head)|
|00005fb0| 3b 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 6e |;.......|. n|
|00005fc0| 78 74 20 3a 3d 20 68 65 | 61 64 5e 2e 6e 65 78 74 |xt := he|ad^.next|
|00005fd0| 3b 20 20 68 65 61 64 5e | 20 3a 3d 20 74 6e 6f 64 |; head^| := tnod|
|00005fe0| 65 3b 20 20 68 65 61 64 | 5e 2e 6e 65 78 74 20 3a |e; head|^.next :|
|00005ff0| 3d 20 6e 78 74 3b 0d 0a | 00 00 00 00 00 00 20 20 |= nxt;..|...... |
|00006000| 20 20 20 20 70 6f 70 28 | 74 61 69 6c 29 3b 20 20 | pop(|tail); |
|00006010| 6e 78 74 20 3a 3d 20 74 | 61 69 6c 5e 2e 6e 65 78 |nxt := t|ail^.nex|
|00006020| 74 3b 20 20 74 61 69 6c | 5e 20 3a 3d 20 74 6e 6f |t; tail|^ := tno|
|00006030| 64 65 3b 0d 0a 00 00 00 | 00 00 00 20 20 20 20 20 |de;.....|... |
|00006040| 20 74 61 69 6c 5e 2e 6e | 65 78 74 20 3a 3d 20 6e | tail^.n|ext := n|
|00006050| 78 74 0d 0a 00 00 00 00 | 00 00 20 20 20 20 65 6e |xt......|.. en|
|00006060| 64 3b 0d 0a 00 00 00 00 | 00 00 65 6e 64 3b 20 7b |d;......|..end; {|
|00006070| 20 69 6e 69 74 69 61 6c | 69 7a 65 20 7d 0d 0a 00 | initial|ize }...|
|00006080| 00 00 00 00 00 0d 0a 00 | 00 00 00 00 00 7b 20 3e |........|.....{ >|
|00006090| 3e 3e 3e 3e 3e 3e 3e 3e | 3e 3e 3e 3e 3e 3e 20 20 |>>>>>>>>|>>>>>> |
|000060a0| 6c 20 69 20 73 20 70 20 | 20 3c 3c 3c 3c 3c 3c 3c |l i s p | <<<<<<<|
|000060b0| 3c 3c 3c 3c 3c 3c 3c 3c | 3c 20 7d 0d 0a 00 00 00 |<<<<<<<<|< }.....|
|000060c0| 00 00 00 0d 0a 00 00 00 | 00 00 00 62 65 67 69 6e |........|...begin|
|000060d0| 0d 0a 00 00 00 00 00 00 | 20 20 77 72 69 74 65 6c |........| writel|
|000060e0| 6e 28 27 20 2a 20 45 56 | 41 4c 20 2a 20 27 29 3b |n(' * EV|AL * ');|
|000060f0| 20 69 6e 69 74 69 61 6c | 69 7a 65 3b 20 6e 65 78 | initial|ize; nex|
|00006100| 74 73 79 6d 3b 20 72 65 | 61 64 65 78 70 72 28 70 |tsym; re|adexpr(p|
|00006110| 74 72 29 3b 0d 0a 00 00 | 00 00 00 00 20 20 72 65 |tr);....|.... re|
|00006120| 61 64 6c 6e 3b 20 20 77 | 72 69 74 65 6c 6e 3b 0d |adln; w|riteln;.|
|00006130| 0a 00 00 00 00 00 00 20 | 20 77 68 69 6c 65 20 6e |....... | while n|
|00006140| 6f 74 20 70 74 72 5e 2e | 61 6e 61 74 6f 6d 20 6f |ot ptr^.|anatom o|
|00006150| 72 20 28 70 74 72 5e 2e | 6e 61 6d 65 20 3c 3e 20 |r (ptr^.|name <> |
|00006160| 27 46 49 4e 20 20 20 20 | 20 20 20 27 29 20 64 6f |'FIN | ') do|
|00006170| 0d 0a 00 00 00 00 00 00 | 20 20 20 20 62 65 67 69 |........| begi|
|00006180| 6e 0d 0a 00 00 00 00 00 | 00 20 20 20 20 20 20 77 |n.......|. w|
|00006190| 72 69 74 65 6c 6e 3b 20 | 20 77 72 69 74 65 6c 6e |riteln; | writeln|
|000061a0| 28 27 20 2a 20 76 61 6c | 75 65 20 2a 20 27 29 3b |(' * val|ue * ');|
|000061b0| 20 20 70 72 69 6e 74 65 | 78 70 72 28 65 76 61 6c | printe|xpr(eval|
|000061c0| 28 70 74 72 2c 20 61 6c | 69 73 74 29 29 3b 0d 0a |(ptr, al|ist));..|
|000061d0| 00 00 00 00 00 00 20 20 | 20 20 31 3a 20 77 72 69 |...... | 1: wri|
|000061e0| 74 65 6c 6e 3b 20 77 72 | 69 74 65 6c 6e 3b 20 69 |teln; wr|iteln; i|
|000061f0| 66 20 65 6f 66 20 74 68 | 65 6e 20 65 72 72 6f 72 |f eof th|en error|
|00006200| 28 31 31 29 3b 0d 0a 00 | 00 00 00 00 00 20 20 20 |(11);...|..... |
|00006210| 20 20 20 20 70 74 72 20 | 3a 3d 20 6e 69 6c 3b 0d | ptr |:= nil;.|
|00006220| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 7b 20 |....... | { |
|00006230| 63 61 6c 6c 20 74 68 65 | 20 7d 20 20 67 61 72 62 |call the| } garb|
|00006240| 61 67 65 6d 61 6e 3b 20 | 77 72 69 74 65 6c 6e 3b |ageman; |writeln;|
|00006250| 20 77 72 69 74 65 6c 6e | 3b 0d 0a 00 00 00 00 00 | writeln|;.......|
|00006260| 00 20 20 20 20 20 20 20 | 77 72 69 74 65 6c 6e 28 |. |writeln(|
|00006270| 27 20 2a 20 45 56 41 4c | 20 2a 20 27 29 3b 20 6e |' * EVAL| * '); n|
|00006280| 65 78 74 73 79 6d 3b 20 | 72 65 61 64 65 78 70 72 |extsym; |readexpr|
|00006290| 28 70 74 72 29 3b 20 20 | 72 65 61 64 6c 6e 3b 0d |(ptr); |readln;.|
|000062a0| 0a 00 00 00 00 00 00 20 | 20 20 20 20 20 20 77 72 |....... | wr|
|000062b0| 69 74 65 6c 6e 3b 0d 0a | 00 00 00 00 00 00 20 20 |iteln;..|...... |
|000062c0| 20 20 65 6e 64 3b 0d 0a | 00 00 00 00 00 00 20 20 | end;..|...... |
|000062d0| 20 20 32 3a 20 77 72 69 | 74 65 6c 6e 3b 20 77 72 | 2: wri|teln; wr|
|000062e0| 69 74 65 6c 6e 3b 0d 0a | 00 00 00 00 00 00 20 20 |iteln;..|...... |
|000062f0| 20 20 20 20 20 77 72 69 | 74 65 6c 6e 28 27 20 74 | wri|teln(' t|
|00006300| 6f 74 61 6c 20 6e 75 6d | 62 65 72 20 6f 66 20 67 |otal num|ber of g|
|00006310| 61 72 62 61 67 65 20 63 | 6f 6c 6c 65 63 74 69 6f |arbage c|ollectio|
|00006320| 6e 73 20 3d 20 27 2c 20 | 6e 75 6d 62 65 72 6f 66 |ns = ', |numberof|
|00006330| 67 63 73 3a 31 2c 0d 0a | 00 00 00 00 00 00 20 20 |gcs:1,..|...... |
|00006340| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 27 2e 27 | | '.'|
|00006350| 29 3b 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |);......|.. |
|00006360| 20 77 72 69 74 65 6c 6e | 3b 0d 0a 00 00 00 00 00 | writeln|;.......|
|00006370| 00 20 20 20 20 20 20 20 | 77 72 69 74 65 6c 6e 28 |. |writeln(|
|00006380| 27 20 66 72 65 65 20 6e | 6f 64 65 73 20 6c 65 66 |' free n|odes lef|
|00006390| 74 20 75 70 6f 6e 20 65 | 78 69 74 20 3d 20 27 2c |t upon e|xit = ',|
|000063a0| 20 66 72 65 65 6e 6f 64 | 65 73 3a 31 2c 27 2e 27 | freenod|es:1,'.'|
|000063b0| 29 3b 0d 0a 00 00 00 00 | 00 00 20 20 20 20 20 20 |);......|.. |
|000063c0| 20 77 72 69 74 65 6c 6e | 3b 0d 0a 00 00 00 00 00 | writeln|;.......|
|000063d0| 00 65 6e 64 2e 20 7b 20 | 6c 69 73 70 20 7d 0d 0a |.end. { |lisp }..|
|000063e0| 00 00 00 00 00 00 0d 0a | 00 00 00 00 00 00 0d 0a |........|........|
|000063f0| 00 00 00 00 00 00 07 07 | 07 07 07 07 07 1a 6e 28 |........|......n(|
+--------+-------------------------+-------------------------+--------+--------+
