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parser.zil
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parser.zil
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"PARSER for
NORD AND BERT (from amfv)
(c) Copyright 1987 Infocom, Inc. All Rights Reserved"
;"Parser global variable convention: All parser globals will begin
with 'P-'. Local variables are not restricted in any way."
<SETG SIBREAKS ".,\"">
<GLOBAL P-AND <>>
<GLOBAL AND-FLAG <>> ;"was AND the word used, not a comma"
<GLOBAL PICKED-FLAG <>> ;"was PICKED used for 'p. p. picked a peck of p. p.'"
<GLOBAL CANT-FLAG <>>
<GLOBAL IN-FRONT-FLAG <>>
<GLOBAL DONT-FLAG <>>
<GLOBAL ORPHAN-DONT <>>
<GLOBAL PRSA <>>
<GLOBAL PRSI <>>
<GLOBAL PRSO <>>
<GLOBAL P-SYNTAX 0>
<GLOBAL P-LEN 0>
<GLOBAL WINNER 0>
<GLOBAL P-LEXV <ITABLE BYTE 120>>
<GLOBAL AGAIN-LEXV <ITABLE BYTE 120>>
<GLOBAL RESERVE-LEXV <ITABLE BYTE 120>>
<GLOBAL RESERVE-PTR <>>
<GLOBAL P-INBUF <ITABLE BYTE 60>> "INBUF - Input buffer for READ"
<GLOBAL RESERVE-INBUF <ITABLE BYTE 60>>
<GLOBAL OOPS-INBUF <ITABLE BYTE 60>>
<GLOBAL OOPS-TABLE <TABLE <> <> <> <>>>
<CONSTANT O-PTR 0> "word pointer to unknown token in P-LEXV"
<CONSTANT O-START 1> "word pointer to sentence start in P-LEXV"
<CONSTANT O-LENGTH 2> "byte length of unparsed tokens in P-LEXV"
<CONSTANT O-END 3> "byte pointer to first free byte in OOPS-INBUF"
<GLOBAL P-CONT <>> ;"Parse-cont variable"
<GLOBAL P-IT-OBJECT <>>
<GLOBAL P-HIM-OBJECT <>>
<GLOBAL P-HER-OBJECT <>>
<ROUTINE THIS-IS-IT (OBJ)
<COND (<OR <NOT .OBJ>
<AND <VERB? WALK>
<PRSO? .OBJ>> ;"PRSO is a direction"
<EQUAL? .OBJ ,PROTAGONIST> ;"is this necessary?"
<EQUAL? .OBJ ,NOT-HERE-OBJECT ,ME ;,GLOBAL-ROOM>>
<RTRUE>)
(<FSET? .OBJ ,FEMALEBIT>
<SETG P-HER-OBJECT .OBJ>)
(<FSET? .OBJ ,ACTORBIT>
<SETG P-HIM-OBJECT .OBJ>
<SETG P-IT-OBJECT .OBJ>) ;"for animals"
(T
<SETG P-IT-OBJECT .OBJ>)>>
<GLOBAL P-OFLAG <>> ;"Orphan flag"
<GLOBAL P-MERGED <>>
<GLOBAL P-ACLAUSE <>>
<GLOBAL P-ANAM <>>
<GLOBAL P-AADJ <>>
"Parser variables and temporaries:"
<CONSTANT P-LEXWORDS 1> "Byte offset to # of entries in LEXV"
<CONSTANT P-LEXSTART 1> "Word offset to start of LEXV entries"
<CONSTANT P-LEXELEN 2> "Number of words per LEXV entry"
<CONSTANT P-WORDLEN 4>
<CONSTANT P-PSOFF 6> "Offset to parts of speech byte"
<CONSTANT P-P1OFF 7> "Offset to first part of speech"
<CONSTANT P-P1BITS 3> "First part of speech bit mask in PSOFF byte"
<CONSTANT P-ITBLLEN 9>
<GLOBAL P-ITBL
<TABLE 0 0 0 0 0 0 0 0 0 0>>
<GLOBAL P-OTBL
<TABLE 0 0 0 0 0 0 0 0 0 0>>
<GLOBAL P-VTBL
<TABLE 0 0 0 0>>
<GLOBAL P-OVTBL
<TABLE 0 0 0 0>>
<GLOBAL P-NCN 0>
<CONSTANT P-VERB 0>
<CONSTANT P-VERBN 1>
<CONSTANT P-PREP1 2>
<CONSTANT P-PREP1N 3>
<CONSTANT P-PREP2 4>
<CONSTANT P-NC1 6>
<CONSTANT P-NC1L 7>
<CONSTANT P-NC2 8>
<CONSTANT P-NC2L 9>
<GLOBAL QUOTE-FLAG <>>
<GLOBAL P-END-ON-PREP <>>
<GLOBAL P-PRSA-WORD <>>
" Grovel down the input finding the verb, prepositions, and noun clauses.
If the input is <direction> or <walk> <direction>, fall out immediately
setting PRSA to ,V?WALK and PRSO to <direction>. Otherwise, perform
all required orphaning, syntax checking, and noun clause lookup."
<ROUTINE PARSER ("AUX" (PTR ,P-LEXSTART) WRD (VAL 0) (VERB <>) (DONT <>)
OMERGED
OWINNER LEN (DIR <>) (NW 0) (LW 0)(CNT -1)(OF-FLAG <>))
<REPEAT ()
<SET CNT <+ .CNT 1>>
<COND (<G? .CNT ,P-ITBLLEN>
<RETURN>)
(T
<COND (<NOT ,P-OFLAG>
<PUT ,P-OTBL .CNT <GET ,P-ITBL .CNT>>)>
<PUT ,P-ITBL .CNT 0>)>>
<SETG P-NAM <>>
<SETG TRANS-PRINTED <>>
<SETG MENU-FLAG <>>
<SETG FIRST-TIME <>>
<SETG CANT-REACH-FLAG <>>
<SETG ROOM-DESC-PRINTED <>>
<SETG IN-FRONT-FLAG <>>
<SETG AND-FLAG <>>
;<SETG ORPHAN-DONT <>>
;<PUT ,P-NAMW 0 <>>
;<PUT ,P-NAMW 1 <>>
<SETG P-ADJ <>>
;<PUT ,P-ADJW 0 <>>
;<PUT ,P-ADJW 1 <>>
<PUT ,P-OFW 0 <>>
<PUT ,P-OFW 1 <>>
<SET OMERGED ,P-MERGED>
;<SETG OOFLAG ,P-OFLAG>
<SET OWINNER ,WINNER>
;<SETG P-ADVERB <>>
<SETG P-MERGED <>>
<SETG P-END-ON-PREP <>>
<PUT ,P-PRSO ,P-MATCHLEN 0>
<PUT ,P-PRSI ,P-MATCHLEN 0>
<PUT ,P-BUTS ,P-MATCHLEN 0>
<COND (<AND <NOT ,QUOTE-FLAG> <N==? ,WINNER ,PROTAGONIST>>
<SETG WINNER ,PROTAGONIST>
<COND (<NOT <FSET? <LOC ,WINNER> ,VEHBIT>>
<SETG HERE <LOC ,WINNER>>)>
;<SETG LIT <LIT? ,HERE>>)>
<COND (,RESERVE-PTR
<SET PTR ,RESERVE-PTR>
<STUFF ,P-LEXV ,RESERVE-LEXV>
<INBUF-STUFF ,P-INBUF ,RESERVE-INBUF>
<COND (<AND <EQUAL? ,VERBOSITY 1 2>
<==? ,PROTAGONIST ,WINNER>>
<CRLF>)>
<SETG RESERVE-PTR <>>
<SETG P-CONT <>>)
(,P-CONT
<SET PTR ,P-CONT>
<COND (<AND <EQUAL? ,VERBOSITY 1 2>
<==? ,PROTAGONIST ,WINNER>>
<CRLF>)>
<SETG P-CONT <>>)
(T
<SETG WINNER ,PROTAGONIST>
<SETG QUOTE-FLAG <>>
<COND (<NOT <FSET? <LOC ,WINNER> ,VEHBIT>>
<SETG HERE <LOC ,WINNER>>)>
;<SETG LIT <LIT? ,HERE>>
<COND (<EQUAL? ,VERBOSITY 1 2>
<CRLF>)>
<COND (<BTST <GET 0 8> 4>
<PUT 0 8 <BAND <GET 0 8> -5>>
<V-$REFRESH T>)> ;"T added to fix screen clearing"
<TELL ">"> ;"STATUS-LINE called at end of main-loop"
<READ ,P-INBUF ,P-LEXV>)>
<SETG P-LEN <GETB ,P-LEXV ,P-LEXWORDS>>
<COND (<0? ,P-LEN>
<TELL "[I beg your pardon?]" CR>
<RFALSE>)
(<EQUAL? <GET ,P-LEXV .PTR> ,W?OOPS>
<COND (<EQUAL? <GET ,P-LEXV <+ .PTR ,P-LEXELEN>>
,W?PERIOD ,W?COMMA>
<SET PTR <+ .PTR ,P-LEXELEN>>
<SETG P-LEN <- ,P-LEN 1>>)>
<COND (<NOT <G? ,P-LEN 1>>
<TELL "[There was no word after OOPS!]" CR>
<RFALSE>)
(<SET VAL <GET ,OOPS-TABLE ,O-PTR>>
<COND (<G? ,P-LEN 2>
<TELL
"[Warning: only the first word after OOPS is used.]" CR>)>
<PUT ,AGAIN-LEXV .VAL <GET ,P-LEXV <+ .PTR ,P-LEXELEN>>>
<SETG WINNER .OWINNER> ;"Fixes OOPS w/chars"
<INBUF-ADD <GETB ,P-LEXV <+ <* .PTR ,P-LEXELEN> 6>>
<GETB ,P-LEXV <+ <* .PTR ,P-LEXELEN> 7>>
<+ <* .VAL ,P-LEXELEN> 3>>
<STUFF ,P-LEXV ,AGAIN-LEXV>
<SETG P-LEN <GETB ,P-LEXV ,P-LEXWORDS>>
<SET PTR <GET ,OOPS-TABLE ,O-START>>
<INBUF-STUFF ,P-INBUF ,OOPS-INBUF>)
(T
<PUT ,OOPS-TABLE ,O-END <>>
<TELL
"[OOPS is useful only after the \"I don't know the word...\" response.]" CR>
<RFALSE>)>
;<COND (,DEBUG
<SET CNT ,P-LEN>
<SET VAL .PTR>
<TELL "[Sentence now reads:">
<REPEAT ()
<COND (<DLESS? CNT 0> <RETURN>)>
<PRINTC 32>
<COND (<ZERO? <GET ,P-LEXV .VAL>>
<WORD-PRINT <GETB <REST ,P-LEXV <* .VAL 2>> 2>
<GETB <REST ,P-LEXV <* .VAL 2>> 3>>)
(T <PRINTB <GET ,P-LEXV .VAL>>)>
<SET VAL <+ 2 .VAL>>>
<TELL ".]" CR>)>)
(T
<PUT ,OOPS-TABLE ,O-END <>>)>
<COND (<EQUAL? <GET ,P-LEXV .PTR> ,W?AGAIN ,W?G>
<COND (<ZERO? <GETB ,OOPS-INBUF 1>>
<TELL "[What do you want to do again?]" CR>
<RFALSE>)
( ,P-OFLAG ;"orphaning every turn?"
;<NOT <EQUAL? <GET ,P-OTBL ,P-VERB> ,ACT?NOVERB>>
<TELL "[It's difficult to repeat fragments.]" CR>
<RFALSE>)
(<NOT ,P-WON>
<TELL "[That would just repeat a mistake!]" CR>
<RFALSE>)
(<AND <NOT <EQUAL? .OWINNER ,PROTAGONIST>>
<NOT <VISIBLE? .OWINNER>>>
<TELL "[You can't see " D .OWINNER " anymore.]" CR>
<STOP>
<RFALSE>)
(<G? ,P-LEN 1>
<COND (<OR <EQUAL? <GET ,P-LEXV <+ .PTR ,P-LEXELEN>>
,W?PERIOD ,W?COMMA ,W?THEN>
<EQUAL? <GET ,P-LEXV <+ .PTR ,P-LEXELEN>>
,W?AND ,W?PICKED ,W?CANT ,W?CAN\'T>>
<COND (<EQUAL? <GET ,P-LEXV <+ .PTR ,P-LEXELEN>>
,W?AND>
<SETG AND-FLAG T>)>
<COND (<EQUAL? <GET ,P-LEXV <+ .PTR ,P-LEXELEN>>
,W?PICKED>
<SETG PICKED-FLAG T>)>
<COND (<EQUAL? <GET ,P-LEXV <+ .PTR ,P-LEXELEN>>
,W?CANT ,W?CAN\'T>
<SETG CANT-FLAG T>)>
<SET PTR <+ .PTR <* 2 ,P-LEXELEN>>>
<PUTB ,P-LEXV ,P-LEXWORDS
<- <GETB ,P-LEXV ,P-LEXWORDS> 2>>)
(T
<TELL "[I couldn't understand that sentence.]" CR>
<RFALSE>)>)
(T
<SET PTR <+ .PTR ,P-LEXELEN>>
<PUTB ,P-LEXV ,P-LEXWORDS
<- <GETB ,P-LEXV ,P-LEXWORDS> 1>>)>
<COND (<G? <GETB ,P-LEXV ,P-LEXWORDS> 0>
<STUFF ,RESERVE-LEXV ,P-LEXV>
<INBUF-STUFF ,RESERVE-INBUF ,P-INBUF>
<SETG RESERVE-PTR .PTR>)
(T
<SETG RESERVE-PTR <>>)>
;<SETG P-LEN <GETB ,AGAIN-LEXV ,P-LEXWORDS>>
<SETG WINNER .OWINNER>
<SETG P-MERGED .OMERGED>
;<SETG P-OFLAG ,OOFLAG>
<INBUF-STUFF ,P-INBUF ,OOPS-INBUF>
<STUFF ,P-LEXV ,AGAIN-LEXV>
<SET CNT -1>
<SET DIR ,AGAIN-DIR>
<REPEAT ()
<COND (<IGRTR? CNT ,P-ITBLLEN> <RETURN>)
(T <PUT ,P-ITBL .CNT <GET ,P-OTBL .CNT>>)>>)
(T
<STUFF ,AGAIN-LEXV ,P-LEXV>
<INBUF-STUFF ,OOPS-INBUF ,P-INBUF>
<PUT ,OOPS-TABLE ,O-START .PTR>
<PUT ,OOPS-TABLE ,O-LENGTH <* 4 ,P-LEN>>
<SET LEN
<* 2 <+ .PTR <* ,P-LEXELEN <GETB ,P-LEXV ,P-LEXWORDS>>>>>
<PUT ,OOPS-TABLE ,O-END <+ <GETB ,P-LEXV <- .LEN 1>>
<GETB ,P-LEXV <- .LEN 2>>>>
<SETG RESERVE-PTR <>>
<SET LEN ,P-LEN>
;<SETG P-DIR <>>
<SETG P-NCN 0>
<SETG P-GETFLAGS 0>
<REPEAT ()
<SETG P-LEN <- ,P-LEN 1>>
<COND (<L? ,P-LEN 0>
<SETG QUOTE-FLAG <>>
<RETURN>)
;(<AND <EQUAL? ,HERE ,DOLDRUMS>
<DOLDRUMS-WORD? <SET WRD <GET ,P-LEXV .PTR>>>>
<DOLDRUMS-WORD? .PTR T> ;"to print ptr"
<RFALSE>)
(<OR <SET WRD <GET ,P-LEXV .PTR>>
<SET WRD <NUMBER? .PTR>>>
<COND (<0? ,P-LEN> <SET NW 0>)
(T <SET NW <GET ,P-LEXV <+ .PTR ,P-LEXELEN>>>)>
<COND (<AND <EQUAL? ,HERE ,DOLDRUMS>
<DOLDRUMS-WORD? <SET WRD <GET ,P-LEXV .PTR>>>>
<DOLDRUMS-WORD? .PTR T> ;"to print ptr"
<RFALSE>)
(<AND <==? .WRD ,W?TO>
<EQUAL? .VERB ,ACT?TELL ,ACT?ASK>>
<PUT ,P-ITBL ,P-VERB ,ACT?TELL>
<SET WRD ,W?QUOTE>)
(<AND <==? .WRD ,W?THEN>
<G? ,P-LEN 0>
<NOT .VERB>
<NOT ,QUOTE-FLAG>>
<PUT ,P-ITBL ,P-VERB ,ACT?TELL>
<PUT ,P-ITBL ,P-VERBN 0>
<SET WRD ,W?QUOTE>)
(<AND <EQUAL? .WRD ,W?PERIOD>
<EQUAL? .LW ,W?MR ;,W?DR ;,W?ST>>
<SETG P-NCN <- ,P-NCN 1>>
<CHANGE-LEXV .PTR .LW T>
<SET WRD .LW>
<SET LW 0>)>
<COND ;(<AND <EQUAL? .WRD ,W?PERIOD>
<EQUAL? .LW ,W?MR ;,W?DR ;,W?ST>>
<SET LW 0>)
(<EQUAL? .WRD ,W?THEN ,W?PERIOD ,W?QUOTE>
<COND (<EQUAL? .WRD ,W?QUOTE>
<COND (,QUOTE-FLAG
<SETG QUOTE-FLAG <>>)
(T
<SETG QUOTE-FLAG T>)>)>
<OR <0? ,P-LEN>
<SETG P-CONT <+ .PTR ,P-LEXELEN>>>
<PUTB ,P-LEXV ,P-LEXWORDS ,P-LEN>
<RETURN>)
(<AND <SET VAL
<WT? .WRD ,PS?DIRECTION ,P1?DIRECTION>>
<EQUAL? .VERB <> ,ACT?WALK ,ACT?GO>
<OR <==? .LEN 1>
<AND <==? .LEN 2>
<EQUAL? .VERB ,ACT?WALK ,ACT?GO>>
<AND <EQUAL? .NW ,W?THEN
,W?PERIOD
,W?QUOTE>
<NOT <L? .LEN 2>>>
<AND ,QUOTE-FLAG
<==? .LEN 2>
<EQUAL? .NW ,W?QUOTE>>
<AND <G? .LEN 2>
<EQUAL? .NW ,W?COMMA ,W?AND
,W?PICKED ,W?CANT ,W?CAN\'T>>>>
<COND (<EQUAL? .NW ,W?AND>
<SETG AND-FLAG T>)>
<COND (<EQUAL? .NW ,W?PICKED>
<SETG PICKED-FLAG T>)>
<COND (<EQUAL? .NW ,W?CANT ,W?CAN\'T>
<SETG CANT-FLAG T>)>
<SET DIR .VAL>
<COND (<EQUAL? .NW ,W?COMMA ,W?AND ,W?PICKED
,W?CANT ,W?CAN\'T>
<CHANGE-LEXV <+ .PTR ,P-LEXELEN>
,W?THEN>)>
<COND (<NOT <G? .LEN 2>>
<SETG QUOTE-FLAG <>>
<RETURN>)>)
(<AND <SET VAL <WT? .WRD ,PS?VERB ,P1?VERB>>
<NOT .VERB>>
<COND (<ZERO? ,P-OFLAG>
;<EQUAL? <GET ,P-OTBL ,P-VERB> ,ACT?NOVERB>
<SETG P-PRSA-WORD .WRD>)>
<SET VERB .VAL>
<PUT ,P-ITBL ,P-VERB .VAL>
<PUT ,P-ITBL ,P-VERBN ,P-VTBL>
<PUT ,P-VTBL 0 .WRD>
<PUTB ,P-VTBL 2 <GETB ,P-LEXV
<SET CNT
<+ <* .PTR 2> 2>>>>
<PUTB ,P-VTBL 3 <GETB ,P-LEXV <+ .CNT 1>>>)
(<OR <SET VAL <WT? .WRD ,PS?PREPOSITION 0>>
<EQUAL? .WRD ,W?ALL ,W?ONE ,W?BOTH>
<EQUAL? .WRD ,W?EVERYTHING>
<WT? .WRD ,PS?ADJECTIVE>
<WT? .WRD ,PS?OBJECT>>
<COND (<AND <G? ,P-LEN 1> ;"1 IN RETROFIX #34"
<EQUAL? .NW ,W?OF>
<0? .VAL>
<NOT <EQUAL? .WRD ,W?ALL ,W?ONE ,W?A>>
<NOT <EQUAL? .WRD ,W?BOTH ,W?EVERYTHING>>>
<PUT ,P-OFW ,P-NCN .WRD> ;"save of-word"
<SET OF-FLAG T>)
(<AND <NOT <0? .VAL>>
<OR <0? ,P-LEN>
<EQUAL? .NW ,W?THEN ,W?PERIOD>>>
<SETG P-END-ON-PREP T>
<COND (<L? ,P-NCN 2>
<PUT ,P-ITBL ,P-PREP1 .VAL>
<PUT ,P-ITBL ,P-PREP1N .WRD>)>)
(<EQUAL? ,P-NCN 2>
<TELL
"[There were too many nouns in that sentence.]" CR>
<RFALSE>)
(T
<SETG P-NCN <+ ,P-NCN 1>>
<COND (<AND <EQUAL? .VAL ,PR?IN>
<EQUAL? .NW ,W?FRONT>>
<SETG IN-FRONT-FLAG T>)
(<AND <EQUAL? .VAL ,PR?DOWN>
<EQUAL? .NW ,W?IN>
<G? ,P-LEN 1>
<EQUAL? <GET ,P-LEXV
<+ .PTR <* 2 ,P-LEXELEN>>>
,W?FRONT>>
<SETG IN-FRONT-FLAG T>)>
<OR <SET PTR <CLAUSE .PTR .VAL .WRD>>
<RFALSE>>
<COND (<L? .PTR 0>
<SETG QUOTE-FLAG <>>
<RETURN>)>)>)
(<EQUAL? .WRD ,W?OF> ;"RETROFIX #34"
<COND (<OR <ZERO? .OF-FLAG>
<EQUAL? .NW ,W?PERIOD ,W?THEN>>
<CANT-USE .PTR>
<RFALSE>)
(T
<SET OF-FLAG <>>)>)
(<AND <NOT .VERB>
<EQUAL? .WRD ,W?DON\'T ,W?DONT>>
<SET DONT T>)
(<WT? .WRD ,PS?BUZZ-WORD>)
(<AND <EQUAL? .VERB ,ACT?TELL>
<WT? .WRD ,PS?VERB>>
<TELL
"[Please consult your manual for the correct way to talk to characters.]" CR>
<RFALSE>)
(T
<CANT-USE .PTR>
<RFALSE>)>)
(T
<UNKNOWN-WORD .PTR>
<RFALSE>)>
<SET LW .WRD>
<SET PTR <+ .PTR ,P-LEXELEN>>>)>
<PUT ,OOPS-TABLE ,O-PTR <>>
<COND (.DIR
<SETG PRSA ,V?WALK>
<SETG PRSO .DIR>
<SETG P-OFLAG <>>
<SETG P-WALK-DIR .DIR>
<SETG DONT-FLAG .DONT> ;"dont"
<SETG AGAIN-DIR .DIR>
<SETG P-PRSA-WORD <>>
;"else, when input is just a direction, P-PRSA-WORD will remain
whatever it was for the previous turn"
<RETURN T>)>
<COND (,P-OFLAG
<ORPHAN-MERGE>)> ;"this WAS replaced by below dont clause"
<COND (,ORPHAN-DONT
<SETG ORPHAN-DONT <>>
<SETG DONT-FLAG T>)
(T
<SETG DONT-FLAG .DONT>)>
;<COND (<OR <NOT ,P-OFLAG>
<NOT <ORPHAN-MERGE>>>
<SETG DONT-FLAG .DONT>)> ;"dont"
<SETG P-WALK-DIR <>>
<SETG AGAIN-DIR <>>
<COND (<AND <SYNTAX-CHECK>
<SNARF-OBJECTS>
<MANY-CHECK>
<TAKE-CHECK>>
T)>>
<ROUTINE DOLDRUMS-WORD? (WRD "OPT" (TO-PRINT? <>) "AUX" BUF (NUM 0))
<COND (<EQUAL? ,DOLDRUMS-WORD-N 29>
<SETG DOLDRUMS-WORD-N 0>
<REPEAT ()
<PUT ,DOLDRUMS-TABLE .NUM 0>
<COND (<EQUAL? .NUM 29>
<RETURN>)>
<SET NUM <+ .NUM 1>>>
<DEQUEUE I-DOLDRUMS>
<TELL
"A deep voice issues from the chasm, \"You've bored me quite enough,
now beat it.\" You're compelled to leave..." CR CR>
<GOTO ,ID-ROOM>
<RTRUE>)
(.TO-PRINT?
<COND (<NOT <EQUAL? ,HERE ,DOLDRUMS>> ;"got moved to ID room"
<RTRUE>)>
<SETG P-OFLAG <>> ;"so previous orphan will be shut off"
<TELL
"The chasm yawns again. I've heard the word \"">
<WORD-PRINT <GETB <REST ,P-LEXV <SET BUF <* .WRD 2>>> 2>
<GETB <REST ,P-LEXV .BUF> 3>>
<TELL "\" before." CR>
<RTRUE>)
(<INTBL? .WRD ,DOLDRUMS-TABLE 30>
<RTRUE>)
(T
<PUT ,DOLDRUMS-TABLE ,DOLDRUMS-WORD-N .WRD>
<SETG DOLDRUMS-WORD-N <+ ,DOLDRUMS-WORD-N 1>>
<RFALSE>)>>
<GLOBAL DOLDRUMS-WORD-N 0>
;"30"
<GLOBAL DOLDRUMS-TABLE
<TABLE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0>>
<ROUTINE CHANGE-LEXV (PTR WRD "OPTIONAL" (BPTR <>) "AUX" X Y Z)
<COND (.BPTR
<SET X <+ 2 <* 2 <- .PTR ,P-LEXELEN>>>>
<SET Y <GETB ,P-LEXV .X>>
<SET Z <+ 2 <* 2 .PTR>>>
<PUTB ,P-LEXV .Z .Y>
<PUTB ,AGAIN-LEXV .Z .Y>
<SET Y <GETB ,P-LEXV <+ 1 .X>>>
<SET Z <+ 3 <* 2 .PTR>>>
<PUTB ,P-LEXV .Z .Y>
<PUTB ,AGAIN-LEXV .Z .Y>)>
<PUT ,P-LEXV .PTR .WRD>
<PUT ,AGAIN-LEXV .PTR .WRD>>
<GLOBAL P-WALK-DIR <>>
<GLOBAL AGAIN-DIR <>>
"For AGAIN purposes, put contents of one LEXV table into another:"
<ROUTINE STUFF (DEST SRC "OPTIONAL" (MAX 29 ;0) "AUX" (PTR ,P-LEXSTART) (CTR 1)
BPTR)
<PUTB .DEST 0 <GETB .SRC 0>>
<PUTB .DEST 1 <GETB .SRC 1>>
;<COND (<0? .MAX> <SET MAX <GETB .SRC 0>>)>
<REPEAT ()
<PUT .DEST .PTR <GET .SRC .PTR>>
<SET BPTR <+ <* .PTR 2> 2>>
<PUTB .DEST .BPTR <GETB .SRC .BPTR>>
<SET BPTR <+ 1 .BPTR>>
<PUTB .DEST .BPTR <GETB .SRC .BPTR>>
<SET PTR <+ .PTR ,P-LEXELEN>>
<COND (<IGRTR? CTR .MAX>
<RETURN>)>>>
;"Put contents of one INBUF into another"
<ROUTINE INBUF-STUFF (DEST SRC "AUX" (CNT -1))
<REPEAT ()
<COND (<IGRTR? CNT 59> <RETURN>)
(T <PUTB .DEST .CNT <GETB .SRC .CNT>>)>>>
;<ROUTINE INBUF-STUFF (DEST SRC "AUX" CNT)
<SET CNT <GETB .SRC 0>>
<REPEAT ()
<COND (<DLESS? CNT 0> <RETURN>)>
<PUTB .DEST .CNT <GETB .SRC .CNT>>>>
;"Put the word in the positions specified from P-INBUF to the end of
OOPS-INBUF, leaving the appropriate pointers in AGAIN-LEXV"
<ROUTINE INBUF-ADD (LEN BEG SLOT "AUX" DBEG (CTR 0) TMP)
<COND (<SET TMP <GET ,OOPS-TABLE ,O-END>>
<SET DBEG .TMP>)
(T
<SET TMP <GET ,OOPS-TABLE ,O-LENGTH>>
<SET DBEG <+ <GETB ,AGAIN-LEXV .TMP>
<GETB ,AGAIN-LEXV <+ .TMP 1>>>>)>
<PUT ,OOPS-TABLE ,O-END <+ .DBEG .LEN>>
<REPEAT ()
<PUTB ,OOPS-INBUF <+ .DBEG .CTR> <GETB ,P-INBUF <+ .BEG .CTR>>>
<SET CTR <+ .CTR 1>>
<COND (<EQUAL? .CTR .LEN> <RETURN>)>>
<PUTB ,AGAIN-LEXV .SLOT .DBEG>
<PUTB ,AGAIN-LEXV <- .SLOT 1> .LEN>>
;"Check whether word pointed at by PTR is the correct part of speech.
The second argument is the part of speech (,PS?<part of speech>). The
3rd argument (,P1?<part of speech>), if given, causes the value
for that part of speech to be returned."
;"allows three parts ot speech"
<ROUTINE WT? (PTR BIT "OPTIONAL" (B1 5) "AUX" (OFFS ,P-P1OFF) TYP)
<COND (<BTST <SET TYP <GETB .PTR ,P-PSOFF>> .BIT>
<COND (<G? .B1 4> <RTRUE>)
(<EQUAL? .BIT ,PS?OBJECT>
1)
(T
<SET TYP <BAND .TYP ,P-P1BITS>>
<COND (<NOT <==? .TYP .B1>> <SET OFFS <+ .OFFS 1>>)>
<GETB .PTR .OFFS>)>)>>
;" Scan through a noun clause, leave a pointer to its starting location"
<ROUTINE CLAUSE (PTR VAL WRD "AUX" OFF NUM (ANDFLG <>) (FIRST?? T) NW (LW 0))
<SET OFF <* <- ,P-NCN 1> 2>>
<COND (<NOT <==? .VAL 0>>
<PUT ,P-ITBL <SET NUM <+ ,P-PREP1 .OFF>> .VAL>
<PUT ,P-ITBL <+ .NUM 1> .WRD>
<SET PTR <+ .PTR ,P-LEXELEN>>)
(T <SETG P-LEN <+ ,P-LEN 1>>)>
<COND (<0? ,P-LEN> <SETG P-NCN <- ,P-NCN 1>> <RETURN -1>)>
<PUT ,P-ITBL <SET NUM <+ ,P-NC1 .OFF>> <REST ,P-LEXV <* .PTR 2>>>
<COND (<EQUAL? <GET ,P-LEXV .PTR> ,W?THE ,W?A ,W?AN>
<PUT ,P-ITBL .NUM <REST <GET ,P-ITBL .NUM> 4>>)>
<REPEAT ()
<COND (<L? <SETG P-LEN <- ,P-LEN 1>> 0>
<PUT ,P-ITBL <+ .NUM 1> <REST ,P-LEXV <* .PTR 2>>>
<RETURN -1>)>
<COND (<OR <SET WRD <GET ,P-LEXV .PTR>>
<SET WRD <NUMBER? .PTR>>>
<COND (<0? ,P-LEN> <SET NW 0>)
(T
<SET NW <GET ,P-LEXV <+ .PTR ,P-LEXELEN>>>
<COND (<ZERO? .NW> ;"added 8/14/86 SWG"
<SET NW <NUMBER? <+ .PTR ,P-LEXELEN>>>)>)>
<COND (<AND <EQUAL? .WRD ,W?PERIOD>
<EQUAL? .LW ,W?MR ;,W?DR ;,W?ST>>
<SET LW 0>)
(<EQUAL? .WRD ,W?AND ,W?PICKED ,W?CANT ,W?CAN\'T>
<SET ANDFLG T>
<COND (<EQUAL? .WRD ,W?AND>
<SETG AND-FLAG T>)
(<EQUAL? .WRD ,W?PICKED>
<SETG PICKED-FLAG T>)
(T
<SETG CANT-FLAG T>)>)
;"above added and below semied for J3"
(<EQUAL? .WRD ;,W?AND ,W?COMMA> <SET ANDFLG T>)
(<EQUAL? .WRD ,W?ALL ,W?ONE ,W?BOTH ,W?EVERYTHING>
<COND (<==? .NW ,W?OF>
<SETG P-LEN <- ,P-LEN 1>>
<SET PTR <+ .PTR ,P-LEXELEN>>)>)
(<OR <EQUAL? .WRD ,W?THEN ,W?PERIOD>
<AND <WT? .WRD ,PS?PREPOSITION>
<GET ,P-ITBL ,P-VERB>
;"ADDED 4/27 FOR TURTLE,UP"
<NOT .FIRST??>>>
<SETG P-LEN <+ ,P-LEN 1>>
<PUT ,P-ITBL
<+ .NUM 1>
<REST ,P-LEXV <* .PTR 2>>>
<RETURN <- .PTR ,P-LEXELEN>>)
;"This next clause was 2 clauses further down"
;"This attempts to fix EDDIE, TURN ON COMPUTER"
(<AND .ANDFLG
<EQUAL? <GET ,P-ITBL ,P-VERB> 0>>
<SET PTR <- .PTR 4>>
<CHANGE-LEXV <+ .PTR 2> ,W?THEN>
<SETG P-LEN <+ ,P-LEN 2>>)
(<WT? .WRD ,PS?OBJECT>
<COND ;"First clause added 1/10/84 to fix
'verb AT synonym OF synonym' bug"
(<AND <G? ,P-LEN 0>
<EQUAL? .NW ,W?OF>
<NOT <EQUAL? .WRD ,W?ALL ,W?ONE
,W?BOTH ,W?EVERYTHING>>>
<PUT ,P-OFW <- ,P-NCN 1> .WRD>
;"previous line had been just T
-- from prof's trinity")
(<AND <EQUAL? <GET ,P-ITBL ,P-VERB>
,ACT?SHOW ,ACT?HAND
,ACT?FEED>
<EQUAL? .WRD ,W?HER>
<EQUAL? .NW ,W?JUST ,W?DESSERTS
;,W?SWORD>>
;"horrific kludge for
'give her sword to...' --pdl")
(<AND <WT? .WRD
,PS?ADJECTIVE
,P1?ADJECTIVE>
<NOT <ZERO? .NW>>
<NOT <EQUAL? .NW
,W?HIS ,W?HER ,W?MY>>
<OR <WT? .NW ,PS?OBJECT>
<WT? .NW ,PS?ADJECTIVE>>
<NOT <EQUAL? <GET ,P-ITBL ,P-VERB>
,ACT?SHOW ,ACT?HAND
,ACT?FEED>>>)
(<AND <WT? .WRD ,PS?ADJECTIVE>
<NOT <==? .NW 0>>
<WT? .NW ,PS?OBJECT>
<NOT <==? .WRD ,W?WAITRESS>>
<NOT <==? .NW ,W?HER>>>)
(<AND <NOT .ANDFLG>
<NOT <EQUAL? .NW ,W?BUT ,W?EXCEPT>>
<NOT <EQUAL? .NW ,W?AND ,W?COMMA
,W?PICKED
,W?CANT ,W?CAN\'T>>>
<PUT ,P-ITBL
<+ .NUM 1>
<REST ,P-LEXV <* <+ .PTR 2> 2>>>
<RETURN .PTR>)
(T <SET ANDFLG <>>)>)
;"next clause replaced by following one
from games with characters"
;(<AND <OR ,P-MERGED
,P-OFLAG
<NOT <EQUAL? <GET ,P-ITBL ,P-VERB> 0>>>
<OR <WT? .WRD ,PS?ADJECTIVE>
<WT? .WRD ,PS?BUZZ-WORD>>>)
(<OR <WT? .WRD ,PS?ADJECTIVE>
<WT? .WRD ,PS?BUZZ-WORD>>)
(<WT? .WRD ,PS?PREPOSITION> T)
(T
<CANT-USE .PTR>
<RFALSE>)>)
(T <UNKNOWN-WORD .PTR> <RFALSE>)>
<SET LW .WRD>
<SET FIRST?? <>>
<SET PTR <+ .PTR ,P-LEXELEN>>>>
;<ROUTINE NUMBER? (PTR "AUX" CNT BPTR CHR (SUM 0) (TIM <>) (EXC <>))
<SET CNT <GETB <REST ,P-LEXV <* .PTR 2>> 2>>
<SET BPTR <GETB <REST ,P-LEXV <* .PTR 2>> 3>>
<REPEAT ()
<COND (<L? <SET CNT <- .CNT 1>> 0>
<RETURN>)
(T
<SET CHR <GETB ,P-INBUF .BPTR>>
<COND (<==? .CHR 58>
<COND (.EXC <RFALSE>)>
<SET TIM .SUM>
<SET SUM 0>)
(<==? .CHR ;45 %<ASCII !\/> %<ASCII !\.>>
<COND (.TIM <RFALSE>)>
<SET EXC .SUM>
<SET SUM 0>)
(<G? .SUM 10000>
<RFALSE>)
(<AND <L? .CHR 58>
<G? .CHR 47>>
<SET SUM <+ <* .SUM 10> <- .CHR 48>>>)
(T
<RFALSE>)>
<SET BPTR <+ .BPTR 1>>)>>
<CHANGE-LEXV .PTR ,W?NUMBER> ;"Makes #s work with AGAIN"
<COND (<G? .SUM 9999>
<RFALSE>)
(.TIM
<COND ;(<L? .TIM 8> ;"from Deadline -- no time before 8 am"
<SET TIM <+ .TIM 12>>)
(<G? .TIM 23>
<RFALSE>)>
<SET SUM <+ .SUM <* .TIM 60>>>)
(T
<SETG P-EXCHANGE 0>)>
<SETG P-NUMBER .SUM>
,W?NUMBER>
;"from suspect"
<ROUTINE NUMBER? (PTR "AUX" CNT BPTR CHR (SUM 0) (TIM <>) (EXC <>))
<SET CNT <GETB <REST ,P-LEXV <* .PTR 2>> 2>>
<SET BPTR <GETB <REST ,P-LEXV <* .PTR 2>> 3>>
<REPEAT ()
<COND (<L? <SET CNT <- .CNT 1>> 0> <RETURN>)
(T
<SET CHR <GETB ,P-INBUF .BPTR>>
<COND (<==? .CHR 58>
<COND (.EXC <RFALSE>)>
<SET TIM .SUM>
<SET SUM 0>)
(<==? .CHR 45 %<ASCII !\/>>
<COND (.TIM <RFALSE>)>
<SET EXC .SUM>
<SET SUM 0>)
(<G? .SUM 9999> <RFALSE>)
(<AND <L? .CHR 58> <G? .CHR 47>>
<SET SUM <+ <* .SUM 10> <- .CHR 48>>>)
(T <RFALSE>)>
<SET BPTR <+ .BPTR 1>>)>>
<PUT ,P-LEXV .PTR ,W?NUMBER>
<COND (<G? .SUM 9999> <RFALSE>)
(.EXC
<SETG P-EXCHANGE .EXC>)
(.TIM
<SETG P-EXCHANGE 0>
<COND (<G? .TIM 23> <RFALSE>)
(<G? .TIM 19> T)
(<G? .TIM 12> <RFALSE>)
(<G? .TIM 7> T)
(T <SET TIM <+ 12 .TIM>>)>
<SET SUM <+ .SUM <* .TIM 60>>>)
(T <SETG P-EXCHANGE 0>)>
<SETG P-NUMBER .SUM>
,W?NUMBER>
<GLOBAL P-NUMBER 0>
<GLOBAL P-EXCHANGE 0>
<GLOBAL P-DIRECTION <>>
<ROUTINE ORPHAN-MERGE ("AUX" (CNT -1) TEMP VERB BEG END (ADJ <>) WRD)
<SETG P-OFLAG <>>
<SET WRD <GET <GET ,P-ITBL ,P-VERBN> 0>>
<COND (<OR <==? <WT? .WRD ,PS?VERB ,P1?VERB>
<GET ,P-OTBL ,P-VERB>>
<WT? .WRD ,PS?ADJECTIVE>>
<SET ADJ T>)
(<AND <WT? .WRD ,PS?OBJECT>
<EQUAL? ,P-NCN 0>>
<PUT ,P-ITBL ,P-VERB 0>
<PUT ,P-ITBL ,P-VERBN 0>
<PUT ,P-ITBL ,P-NC1 <REST ,P-LEXV 2>>
<PUT ,P-ITBL ,P-NC1L <REST ,P-LEXV 6>>
<SETG P-NCN 1>)>
<COND (<AND <NOT <0? <SET VERB <GET ,P-ITBL ,P-VERB>>>>
<NOT .ADJ>
<NOT <==? .VERB <GET ,P-OTBL ,P-VERB>>>>
<RFALSE>)
(<==? ,P-NCN 2> <RFALSE>)
(<==? <GET ,P-OTBL ,P-NC1> 1>
<COND (<OR <==? <SET TEMP <GET ,P-ITBL ,P-PREP1>>
<GET ,P-OTBL ,P-PREP1>>
<0? .TEMP>>
<COND (.ADJ
<PUT ,P-OTBL ,P-NC1 <REST ,P-LEXV 2>>
<COND (<0? <GET ,P-ITBL ,P-NC1L>>
<PUT ,P-ITBL ,P-NC1L <REST ,P-LEXV 6>>)>
<COND (<0? ,P-NCN> <SETG P-NCN 1>)>)
(T
<PUT ,P-OTBL ,P-NC1 <GET ,P-ITBL ,P-NC1>>
;<PUT ,P-OTBL ,P-NC1L <GET ,P-ITBL ,P-NC1L>>)>
<PUT ,P-OTBL ,P-NC1L <GET ,P-ITBL ,P-NC1L>>)
(T <RFALSE>)>)
(<==? <GET ,P-OTBL ,P-NC2> 1>
<COND (<OR <==? <SET TEMP <GET ,P-ITBL ,P-PREP1>>
<GET ,P-OTBL ,P-PREP2>>
<0? .TEMP>>
<COND (.ADJ
<PUT ,P-ITBL ,P-NC1 <REST ,P-LEXV 2>>
<COND (<0? <GET ,P-ITBL ,P-NC1L>>
<PUT ,P-ITBL ,P-NC1L <REST ,P-LEXV 6>>)>)>
<PUT ,P-OTBL ,P-NC2 <GET ,P-ITBL ,P-NC1>>
<PUT ,P-OTBL ,P-NC2L <GET ,P-ITBL ,P-NC1L>>
<SETG P-NCN 2>)
(T <RFALSE>)>)
(,P-ACLAUSE
<COND (<AND <NOT <==? ,P-NCN 1>> <NOT .ADJ>>
<SETG P-ACLAUSE <>>
<RFALSE>)
(T
<SET BEG <GET ,P-ITBL ,P-NC1>>
<COND (.ADJ <SET BEG <REST ,P-LEXV 2>> <SET ADJ <>>)>
<SET END <GET ,P-ITBL ,P-NC1L>>
<REPEAT ()
<SET WRD <GET .BEG 0>>
<COND (<==? .BEG .END>
<COND (.ADJ <ACLAUSE-WIN .ADJ> <RETURN>)
(T <SETG P-ACLAUSE <>> <RFALSE>)>)
(<AND <NOT .ADJ>
<OR <BTST <GETB .WRD ,P-PSOFF>
,PS?ADJECTIVE> ;"same as WT?"
<EQUAL? .WRD ,W?ALL ,W?ONE
,W?EVERYTHING>>>
<SET ADJ .WRD>)
(<==? .WRD ,W?ONE>
<ACLAUSE-WIN .ADJ>
<RETURN>)
(<BTST <GETB .WRD ,P-PSOFF> ,PS?OBJECT>
<COND (<EQUAL? .WRD ,P-ANAM>
<ACLAUSE-WIN .ADJ>)
(T
<NCLAUSE-WIN>)>
<RETURN>)>
<SET BEG <REST .BEG ,P-WORDLEN>>
<COND (<EQUAL? .END 0>
<SET END .BEG>
<SETG P-NCN 1>
<PUT ,P-ITBL ,P-NC1 <BACK .BEG 4>>
<PUT ,P-ITBL ,P-NC1L .BEG>)>>)>)>
<PUT ,P-VTBL 0 <GET ,P-OVTBL 0>>
<PUTB ,P-VTBL 2 <GETB ,P-OVTBL 2>>
<PUTB ,P-VTBL 3 <GETB ,P-OVTBL 3>>
<PUT ,P-OTBL ,P-VERBN ,P-VTBL>
<PUTB ,P-VTBL 2 0>
;<AND <NOT <==? <GET ,P-OTBL ,P-NC2> 0>> <SETG P-NCN 2>>
<REPEAT ()
<COND (<G? <SET CNT <+ .CNT 1>> ,P-ITBLLEN>
<SETG P-MERGED T>
<RTRUE>)
(T <PUT ,P-ITBL .CNT <GET ,P-OTBL .CNT>>)>>
T>
<ROUTINE ACLAUSE-WIN (ADJ)
<PUT ,P-ITBL ,P-VERB <GET ,P-OTBL ,P-VERB>>
<CLAUSE-COPY ,P-OTBL ,P-OTBL ,P-ACLAUSE <+ ,P-ACLAUSE 1>
,P-ACLAUSE <+ ,P-ACLAUSE 1> .ADJ>
<AND <NOT <==? <GET ,P-OTBL ,P-NC2> 0>> <SETG P-NCN 2>>
<SETG P-ACLAUSE <>>
<RTRUE>>
<ROUTINE NCLAUSE-WIN ()
<CLAUSE-COPY ,P-ITBL ,P-OTBL ,P-NC1 ,P-NC1L
,P-ACLAUSE <+ ,P-ACLAUSE 1>>
<AND <NOT <==? <GET ,P-OTBL ,P-NC2> 0>> <SETG P-NCN 2>>
<SETG P-ACLAUSE <>>
<RTRUE>>
;"Print undefined word in input. PTR points to the unknown word in P-LEXV"
<ROUTINE WORD-PRINT (CNT BUF)
<REPEAT ()
<COND (<DLESS? CNT 0> <RETURN>)
(ELSE
<PRINTC <GETB ,P-INBUF .BUF>>
<SET BUF <+ .BUF 1>>)>>>
<ROUTINE UNKNOWN-WORD (PTR "AUX" BUF)
<PUT ,OOPS-TABLE ,O-PTR .PTR>
<COND (<EQUAL? ,SCENE ,COMEDY>
<TELL "[You won't find">)
(T
<TELL "[I don't know">)>
<TELL " the word \"">
<WORD-PRINT <GETB <REST ,P-LEXV <SET BUF <* .PTR 2>>> 2>
<GETB <REST ,P-LEXV .BUF> 3>>
<COND (<EQUAL? ,SCENE ,COMEDY>
<TELL "\" anywhere in the script.]">)
(T
<TELL ".\"]">)>
<CRLF>
<SETG QUOTE-FLAG <>>
;<SETG P-OFLAG <>>>
<ROUTINE CANT-USE (PTR "AUX" BUF)
<TELL "[You used the word \"">
<WORD-PRINT <GETB <REST ,P-LEXV <SET BUF <* .PTR 2>>> 2>
<GETB <REST ,P-LEXV .BUF> 3>>
<TELL "\" in a way that I don't understand.]" CR>
<SETG QUOTE-FLAG <>>
<SETG P-OFLAG <>>>
;"Perform syntax matching operations, using P-ITBL as the source of the verb
and adjectives for this input. Returns false if no syntax matches, and does
it's own orphaning. If return is true, the syntax is saved in P-SYNTAX."
<GLOBAL P-SLOCBITS 0>
<CONSTANT P-SYNLEN 8>
<CONSTANT P-SBITS 0>
<CONSTANT P-SPREP1 1>
<CONSTANT P-SPREP2 2>
<CONSTANT P-SFWIM1 3>
<CONSTANT P-SFWIM2 4>
<CONSTANT P-SLOC1 5>
<CONSTANT P-SLOC2 6>
<CONSTANT P-SACTION 7>
<CONSTANT P-SONUMS 3>
<ROUTINE SYNTAX-CHECK
("AUX" SYN LEN NUM OBJ (DRIVE1 <>) (DRIVE2 <>) PREP VERB TMP)
<COND (<0? <SET VERB <GET ,P-ITBL ,P-VERB>>>
<PUT ,P-ITBL ,P-VERB <SET VERB ,ACT?NOVERB>>)>
<SET SYN <GET ,VERBS <- 255 .VERB>>>
<SET LEN <GETB .SYN 0>>
<SET SYN <REST .SYN>>
<REPEAT ()
<SET NUM <BAND <GETB .SYN ,P-SBITS> ,P-SONUMS>>
<COND (<G? ,P-NCN .NUM> T)
(<AND <NOT <L? .NUM 1>>
<0? ,P-NCN>
<OR <0? <SET PREP <GET ,P-ITBL ,P-PREP1>>>
<==? .PREP <GETB .SYN ,P-SPREP1>>>>
<SET DRIVE1 .SYN>)