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parser.zil
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parser.zil
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"PARSER for
THE HITCHHIKER'S GUIDE TO THE GALAXY
(c) Copyright 1984 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 IN-FRONT-FLAG <>>
<GLOBAL PRSA <>>
<GLOBAL PRSI <>>
<GLOBAL PRSO <>>
<GLOBAL P-TABLE 0>
<GLOBAL P-ONEOBJ 0>
<GLOBAL P-SYNTAX 0>
<GLOBAL P-CCTBL <TABLE 0 0 0 0>>
;"pointers used by CLAUSE-COPY (source/destination beginning/end pointers)"
<CONSTANT CC-SBPTR 0>
<CONSTANT CC-SEPTR 1>
<CONSTANT CC-DBPTR 2>
<CONSTANT CC-DEPTR 3>
<GLOBAL P-LEN 0>
<GLOBAL WINNER 0>
<GLOBAL P-LEXV <ITABLE BYTE 120>>
<GLOBAL P-INBUF <ITABLE BYTE 60>> ;"INBUF - Input buffer for READ"
<GLOBAL P-CONT <>> ;"Parse-cont variable"
<GLOBAL P-IT-OBJECT <>>
<GLOBAL LAST-PSEUDO-LOC <>>
<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 4> ;"Offset to parts of speech byte"
<CONSTANT P-P1OFF 5> ;"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-INPUT-WORDS <>>
<GLOBAL P-END-ON-PREP <>>
" 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 <>)
LEN (DIR <>) (NW 0) (LW 0) NUM SCNT (CNT -1))
<REPEAT ()
<COND (<G? <SET CNT <+ .CNT 1>> ,P-ITBLLEN> <RETURN>)
(T <PUT ,P-ITBL .CNT 0>)>>
<SETG IN-FRONT-FLAG <>>
<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 ,PLAYER>>
<SETG WINNER ,PLAYER>
<COND (<NOT <FSET? <LOC ,WINNER> ,VEHBIT>>
<SETG HERE <LOC ,WINNER>>)>
<SETG LIT <LIT? ,HERE>>)>
<COND (,P-CONT
<SET PTR ,P-CONT>
<COND (<AND <EQUAL? ,VERBOSITY 1 2>
<==? ,PLAYER ,WINNER>>
<CRLF>)>
<SETG P-CONT <>>)
(T
<SETG WINNER ,PLAYER>
<SETG QUOTE-FLAG <>>
<COND (<NOT <FSET? <LOC ,WINNER> ,VEHBIT>>
<SETG HERE <LOC ,WINNER>>)>
<SETG LIT <LIT? ,HERE>>
<COND (<EQUAL? ,VERBOSITY 1 2>
<CRLF>)>
<TELL ">">
<READ ,P-INBUF ,P-LEXV>
<SETG P-INPUT-WORDS <GETB ,P-LEXV ,P-LEXWORDS>>)>
<SETG P-LEN <GETB ,P-LEXV ,P-LEXWORDS>>
<COND (<0? ,P-LEN>
<TELL "I beg your pardon?" CR>
<RFALSE>)>
<SET LEN ,P-LEN>
;<SETG P-DIR <>>
<SETG P-NCN 0>
<SETG P-GETFLAGS 0>
<REPEAT ()
<COND (<L? <SETG P-LEN <- ,P-LEN 1>> 0>
<SETG QUOTE-FLAG <>>
<RETURN>)
(<OR <SET WRD <GET ,P-LEXV .PTR>>
<SET WRD <NUMBER? .PTR>>>
<COND (<AND <==? .WRD ,W?TO>
<EQUAL? .VERB ,ACT?TELL ,ACT?ASK>
;"next clause added 8/20/84 by JW to
enable TELL MY NAME TO BEAST"
<WT? <GET ,P-LEXV <+ .PTR ,P-LEXELEN>>
,PS?VERB ,P1?VERB>>
<PUT ,P-ITBL ,P-VERB ,ACT?TELL>
<SET WRD ,W?QUOTE>)
(<AND <==? .WRD ,W?THEN>
<NOT .VERB>
<NOT ,QUOTE-FLAG>>
<PUT ,P-ITBL ,P-VERB ,ACT?TELL>
<PUT ,P-ITBL ,P-VERBN 0>
<SET WRD ,W?QUOTE>)>
<COND (<AND <EQUAL? .WRD ,W?PERIOD>
<EQUAL? .LW ,W?MR>>
<SET LW 0>)
(<OR <EQUAL? .WRD ,W?THEN ,W?PERIOD>
<EQUAL? .WRD ,W?QUOTE>>
<COND (<EQUAL? .WRD ,W?QUOTE>
<COND ;"Following clause added 8/7/84
for CARVE 'FOO' IN BAR"
(<EQUAL? .VERB ,ACT?CARVE ,ACT?MY>
<PUT ,P-LEXV .PTR ,W?THE>
<SETG P-LEN <+ ,P-LEN 1>>
<AGAIN>)
(,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>
<OR <==? .LEN 1>
<AND <==? .LEN 2>
<EQUAL? .VERB ,ACT?WALK ;,ACT?FLY>>
<AND <EQUAL? <SET NW
<GET ,P-LEXV
<+ .PTR ,P-LEXELEN>>>
,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>>>>
<SET DIR .VAL>
<COND (<EQUAL? .NW ,W?COMMA ,W?AND>
<PUT ,P-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>>
<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 NUM
<+ <* .PTR 2> 2>>>>
<PUTB ,P-VTBL 3 <GETB ,P-LEXV <+ .NUM 1>>>)
(<OR <SET VAL <WT? .WRD ,PS?PREPOSITION 0>>
<AND <OR <EQUAL? .WRD ,W?ALL ,W?ONE ,W?BOTH>
<WT? .WRD ,PS?ADJECTIVE>
<WT? .WRD ,PS?OBJECT>>
<SET VAL 0>>>
<COND (<AND <G? ,P-LEN 0>
<EQUAL? <GET ,P-LEXV <+ .PTR ,P-LEXELEN>>
,W?OF>
<0? .VAL>
<NOT <EQUAL? .WRD ,W?ALL ,W?ONE ,W?A>>
<NOT <EQUAL? .WRD ,W?BOTH>>>)
(<AND <NOT <0? .VAL>>
<OR <0? ,P-LEN>
<EQUAL? <GET ,P-LEXV <+ .PTR 2>>
,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>>
;"This COND added 8/7/84 for IN FRONT OF"
<COND (<AND <EQUAL? .VAL ,PR?IN>
<EQUAL? <GET ,P-LEXV
<+ .PTR 2>>
,W?FRONT>>
<SETG IN-FRONT-FLAG T>)
(<AND <EQUAL? .VAL ,PR?DOWN>
<EQUAL? <GET ,P-LEXV
<+ .PTR 2>>
,W?IN>
<EQUAL? <GET ,P-LEXV
<+ .PTR 4>>
,W?FRONT>>
<SETG IN-FRONT-FLAG T>)>
<OR <SET PTR <CLAUSE .PTR .VAL .WRD>>
<RFALSE>>
<COND (<L? .PTR 0>
<SETG QUOTE-FLAG <>>
<RETURN>)>)>)
(<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 ,P1?VERB>
;"Next expr added to fix FORD, TELL ME WHY"
;"NOT taken out of said expr to fix fix"
<EQUAL? ,WINNER ,PLAYER>>
<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>>>
<COND (.DIR
<SETG PRSA ,V?WALK>
<SETG PRSO .DIR>
<SETG P-OFLAG <>>
<SETG P-WALK-DIR .DIR>
<SETG DONT-FLAG .DONT>
<RETURN T>)>
<SETG P-WALK-DIR <>>
<COND (<OR <NOT ,P-OFLAG>
<NOT <ORPHAN-MERGE>>>
<SETG DONT-FLAG .DONT>)>
<COND (<AND <SYNTAX-CHECK>
<SNARF-OBJECTS>
<MANY-CHECK>
<TAKE-CHECK>>
T)>>
<GLOBAL DONT-FLAG <>>
<GLOBAL P-WALK-DIR <>>
;"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."
<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>)
(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 (<AND <EQUAL? .WRD ,W?PERIOD>
<EQUAL? .LW ,W?MR>>
<SET LW 0>)
(<EQUAL? .WRD ,W?AND ,W?COMMA> <SET ANDFLG T>)
(<EQUAL? .WRD ,W?ALL ,W?ONE ,W?BOTH>
<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>>
<PUT ,P-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>>>
T)
(<AND <WT? .WRD
,PS?ADJECTIVE
,P1?ADJECTIVE>
<NOT <==? .NW 0>>
<OR <WT? .NW ,PS?OBJECT>
<WT? .NW ,PS?ADJECTIVE>>>)
(<AND <NOT .ANDFLG>
<NOT <EQUAL? .NW ,W?BUT ,W?EXCEPT>>
<NOT <EQUAL? .NW ,W?AND ,W?COMMA>>>
<PUT ,P-ITBL
<+ .NUM 1>
<REST ,P-LEXV <* <+ .PTR 2> 2>>>
<RETURN .PTR>)
(T <SET ANDFLG <>>)>)
;"next clause replaced by following on 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 <>))
<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>
<SET TIM .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>>)>>
<PUT ,P-LEXV .PTR ,W?INTNUM>
<COND (<G? .SUM 1000>
<RFALSE>)
(.TIM
<COND (<L? .TIM 8>
<SET TIM <+ .TIM 12>>)
(<G? .TIM 23>
<RFALSE>)>
<SET SUM <+ .SUM <* .TIM 60>>>)>
<SETG P-NUMBER .SUM>
,W?INTNUM>
<GLOBAL P-NUMBER 0>
<ROUTINE ORPHAN-MERGE ("AUX" (CNT -1) TEMP VERB BEG END (ADJ <>) WRD)
<SETG P-OFLAG <>>
<COND (<WT? <SET WRD <GET <GET ,P-ITBL ,P-VERBN> 0>>
,PS?ADJECTIVE ,P1?ADJECTIVE>
<SET ADJ T>)
(<AND <WT? .WRD ,PS?OBJECT ,P1?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>>>
<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>>
<COND (<EQUAL? .ADJ ,W?TEA> ;"special case"
<NCLAUSE-WIN>)
(T
<PUT ,P-CCTBL ,CC-SBPTR ,P-ACLAUSE>
<PUT ,P-CCTBL ,CC-SEPTR <+ ,P-ACLAUSE 1>>
<PUT ,P-CCTBL ,CC-DBPTR ,P-ACLAUSE>
<PUT ,P-CCTBL ,CC-DEPTR <+ ,P-ACLAUSE 1>>
<CLAUSE-COPY ,P-OTBL ,P-OTBL .ADJ>)>
<AND <NOT <==? <GET ,P-OTBL ,P-NC2> 0>> <SETG P-NCN 2>>
<SETG P-ACLAUSE <>>
<RTRUE>>
<ROUTINE NCLAUSE-WIN ()
<PUT ,P-CCTBL ,CC-SBPTR ,P-NC1>
<PUT ,P-CCTBL ,CC-SEPTR ,P-NC1L>
<PUT ,P-CCTBL ,CC-DBPTR ,P-ACLAUSE>
<PUT ,P-CCTBL ,CC-DEPTR <+ ,P-ACLAUSE 1>>
<CLAUSE-COPY ,P-ITBL ,P-OTBL>
<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)
<TELL "I don't know the word \"">
<WORD-PRINT <GETB <REST ,P-LEXV <SET BUF <* .PTR 2>>> 2>
<GETB <REST ,P-LEXV .BUF> 3>>
<TELL "\"." CR>
<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>>>
<TELL "There was no verb in that sentence!" CR>
<RFALSE>)>
<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>)
(<==? <GETB .SYN ,P-SPREP1> <GET ,P-ITBL ,P-PREP1>>
<COND (<AND <==? .NUM 2> <==? ,P-NCN 1>>
<SET DRIVE2 .SYN>)
(<EQUAL? <GETB .SYN ,P-SPREP2>
<GET ,P-ITBL ,P-PREP2>>
<SYNTAX-FOUND .SYN>
<RTRUE>)>)>
<COND (<DLESS? LEN 1>
<COND (<OR .DRIVE1 .DRIVE2> <RETURN>)
(T
<V-TELL-TIME>
<RFALSE>)>)
(T <SET SYN <REST .SYN ,P-SYNLEN>>)>>
<COND (<AND .DRIVE1
<SET OBJ
<GWIM <GETB .DRIVE1 ,P-SFWIM1>
<GETB .DRIVE1 ,P-SLOC1>
<GETB .DRIVE1 ,P-SPREP1>>>>
<PUT ,P-PRSO ,P-MATCHLEN 1>
<PUT ,P-PRSO 1 .OBJ>
<SYNTAX-FOUND .DRIVE1>)
(<AND .DRIVE2
<SET OBJ
<GWIM <GETB .DRIVE2 ,P-SFWIM2>
<GETB .DRIVE2 ,P-SLOC2>
<GETB .DRIVE2 ,P-SPREP2>>>>
<PUT ,P-PRSI ,P-MATCHLEN 1>
<PUT ,P-PRSI 1 .OBJ>
<SYNTAX-FOUND .DRIVE2>)
(<EQUAL? .VERB ,ACT?FIND ;,ACT?WHAT>
<TELL "I can't answer that question." CR>
<RFALSE>)
(<NOT <==? ,WINNER ,PROTAGONIST>>
<CANT-ORPHAN>)
(T
<ORPHAN .DRIVE1 .DRIVE2>
<TELL "What do">
<COND (,DONT-FLAG
<TELL "n't">)>
<TELL " you want to ">
<SET TMP <GET ,P-OTBL ,P-VERBN>>
<COND (<EQUAL? .TMP 0>
<TELL "tell">)
(<0? <GETB ,P-VTBL 2>>
<PRINTB <GET .TMP 0>>)
(T
<WORD-PRINT <GETB .TMP 2> <GETB .TMP 3>>
<PUTB ,P-VTBL 2 0>)>
<COND (.DRIVE2
<CLAUSE-PRINT ,P-NC1 ,P-NC1L>)>
<SETG P-OFLAG T>
<PREP-PRINT <COND (.DRIVE1 <GETB .DRIVE1 ,P-SPREP1>)
(T <GETB .DRIVE2 ,P-SPREP2>)>>
<TELL "?" CR>
<RFALSE>)>>
<ROUTINE CANT-ORPHAN ()
<COND (<AND <EQUAL? ,WINNER ,GUARDS>
<EQUAL? ,HERE ,DAIS>>
<TELL "\"We">)
(T
<TELL "\"I">)>
<TELL " don't understand! What are you referring to?\"" CR>
<RFALSE>>
<ROUTINE ORPHAN (D1 D2 "AUX" (CNT -1))
<COND (<NOT ,P-MERGED>
<PUT ,P-OCLAUSE ,P-MATCHLEN 0>)>
<PUT ,P-OVTBL 0 <GET ,P-VTBL 0>>
<PUTB ,P-OVTBL 2 <GETB ,P-VTBL 2>>
<PUTB ,P-OVTBL 3 <GETB ,P-VTBL 3>>
<REPEAT ()
<COND (<IGRTR? CNT ,P-ITBLLEN> <RETURN>)
(T <PUT ,P-OTBL .CNT <GET ,P-ITBL .CNT>>)>>
<COND (<==? ,P-NCN 2>
<PUT ,P-CCTBL ,CC-SBPTR ,P-NC2>
<PUT ,P-CCTBL ,CC-SEPTR ,P-NC2L>
<PUT ,P-CCTBL ,CC-DBPTR ,P-NC2>
<PUT ,P-CCTBL ,CC-DEPTR ,P-NC2L>
<CLAUSE-COPY ,P-ITBL ,P-OTBL>)>
<COND (<NOT <L? ,P-NCN 1>>
<PUT ,P-CCTBL ,CC-SBPTR ,P-NC1>
<PUT ,P-CCTBL ,CC-SEPTR ,P-NC1L>
<PUT ,P-CCTBL ,CC-DBPTR ,P-NC1>
<PUT ,P-CCTBL ,CC-DEPTR ,P-NC1L>
<CLAUSE-COPY ,P-ITBL ,P-OTBL>)>
<COND (.D1
<PUT ,P-OTBL ,P-PREP1 <GETB .D1 ,P-SPREP1>>
<PUT ,P-OTBL ,P-NC1 1>)
(.D2
<PUT ,P-OTBL ,P-PREP2 <GETB .D2 ,P-SPREP2>>
<PUT ,P-OTBL ,P-NC2 1>)>>
<ROUTINE CLAUSE-PRINT (BPTR EPTR "OPTIONAL" (THE? T))
<BUFFER-PRINT <GET ,P-ITBL .BPTR> <GET ,P-ITBL .EPTR> .THE?>>
<ROUTINE BUFFER-PRINT (BEG END CP "AUX" (NOSP <>) WRD (FIRST?? T) (PN <>))
<REPEAT ()
<COND (<EQUAL? .BEG .END>
<RETURN>)
(T
<COND (.NOSP
<SET NOSP <>>)
(T
<TELL " ">)>
<COND (<EQUAL? <SET WRD <GET .BEG 0>> ,W?PERIOD>
<SET NOSP T>)
(<EQUAL? .WRD ,W?ME>
<PRINTD ,ME>
<SET PN T>)
(<NAME? .WRD>
<CAPITALIZE .BEG>
<SET PN T>)
(T
<COND (<AND .FIRST?? <NOT .PN> .CP>
<TELL "the ">)>
<COND (<OR ,P-OFLAG ,P-MERGED> <PRINTB .WRD>)
(<AND <==? .WRD ,W?IT>
<ACCESSIBLE? ,P-IT-OBJECT>>
<PRINTD ,P-IT-OBJECT>)
(T
<WORD-PRINT <GETB .BEG 2>
<GETB .BEG 3>>)>
<SET FIRST?? <>>)>)>
<SET BEG <REST .BEG ,P-WORDLEN>>>>
<ROUTINE NAME? (WRD)
<COND (<OR <EQUAL? .WRD ,W?FORD ,W?ZAPHOD ,W?BEEBLE>
<EQUAL? .WRD ,W?TRILLI ,W?TRICIA ,W?MCMILL>
<EQUAL? .WRD ,W?PROSSE ,W?MARVIN ,W?ARTHUR>
<EQUAL? .WRD ,W?DENT ,W?PREFEC ,W?PHIL>
<EQUAL? .WRD ,W?EDDIE ,W?MARV ,W?ED>>
<RTRUE>)
(T
<RFALSE>)>>
<ROUTINE CAPITALIZE (PTR)
<COND (<OR ,P-OFLAG ,P-MERGED>
<PRINTB <GET .PTR 0>>)
(T
<PRINTC <- <GETB ,P-INBUF <GETB .PTR 3>> 32>>
<WORD-PRINT <- <GETB .PTR 2> 1> <+ <GETB .PTR 3> 1>>)>>
<ROUTINE PREP-PRINT (PREP "AUX" WRD)
<COND (<NOT <0? .PREP>>
<TELL " ">
<COND (<EQUAL? .PREP ,PR?THROUGH>
<TELL "through">)
(T
<SET WRD <PREP-FIND .PREP>>
<PRINTB .WRD>)>)>>
<ROUTINE CLAUSE-COPY (SRC DEST "OPTIONAL" (INSRT <>) "AUX" BEG END)
<SET BEG <GET .SRC <GET ,P-CCTBL ,CC-SBPTR>>>
<SET END <GET .SRC <GET ,P-CCTBL ,CC-SEPTR>>>
<PUT .DEST
<GET ,P-CCTBL ,CC-DBPTR>
<REST ,P-OCLAUSE
<+ <* <GET ,P-OCLAUSE ,P-MATCHLEN> ,P-LEXELEN> 2>>>
<REPEAT ()
<COND (<==? .BEG .END>
<PUT .DEST
<GET ,P-CCTBL ,CC-DEPTR>
<REST ,P-OCLAUSE
<+ <* <GET ,P-OCLAUSE ,P-MATCHLEN> ,P-LEXELEN>
2>>>
<RETURN>)
(T
<COND (<AND .INSRT <==? ,P-ANAM <GET .BEG 0>>>
<CLAUSE-ADD .INSRT>)>
<CLAUSE-ADD <GET .BEG 0>>)>
<SET BEG <REST .BEG ,P-WORDLEN>>>>
<ROUTINE CLAUSE-ADD (WRD "AUX" PTR)
<SET PTR <+ <GET ,P-OCLAUSE ,P-MATCHLEN> 2>>
<PUT ,P-OCLAUSE <- .PTR 1> .WRD>
<PUT ,P-OCLAUSE .PTR 0>
<PUT ,P-OCLAUSE ,P-MATCHLEN .PTR>>
<ROUTINE PREP-FIND (PREP "AUX" (CNT 0) SIZE)
<SET SIZE <* <GET ,PREPOSITIONS 0> 2>>
<REPEAT ()
<COND (<IGRTR? CNT .SIZE> <RFALSE>)
(<==? <GET ,PREPOSITIONS .CNT> .PREP>
<RETURN <GET ,PREPOSITIONS <- .CNT 1>>>)>>>
<ROUTINE SYNTAX-FOUND (SYN)
<SETG P-SYNTAX .SYN>
<SETG PRSA <GETB .SYN ,P-SACTION>>>
<GLOBAL P-GWIMBIT 0>
<ROUTINE GWIM (GBIT LBIT PREP "AUX" OBJ)
<COND (<==? .GBIT ,RLANDBIT>
<RETURN ,ROOMS>)>
<SETG P-GWIMBIT .GBIT>
<SETG P-SLOCBITS .LBIT>
<PUT ,P-MERGE ,P-MATCHLEN 0>
<COND (<GET-OBJECT ,P-MERGE <>>
<SETG P-GWIMBIT 0>
<COND (<==? <GET ,P-MERGE ,P-MATCHLEN> 1>
<SET OBJ <GET ,P-MERGE 1>>
<TELL "(">
<COND (<AND <NOT <0? .PREP>>
<NOT ,P-END-ON-PREP>>
<PRINTB <SET PREP <PREP-FIND .PREP>>>
<COND (<==? .PREP ,W?OUT>
<TELL " of">)>
<COND (<NOT <FSET? .OBJ ,NARTICLEBIT>>
<TELL " the ">)
(T
<TELL " ">)>)>
<TELL D .OBJ ")" CR>
.OBJ)>)
(T <SETG P-GWIMBIT 0> <RFALSE>)>>
<ROUTINE SNARF-OBJECTS ("AUX" PTR)
<COND (<NOT <==? <SET PTR <GET ,P-ITBL ,P-NC1>> 0>>
<SETG P-SLOCBITS <GETB ,P-SYNTAX ,P-SLOC1>>
<OR <SNARFEM .PTR <GET ,P-ITBL ,P-NC1L> ,P-PRSO> <RFALSE>>
<OR <0? <GET ,P-BUTS ,P-MATCHLEN>>
<SETG P-PRSO <BUT-MERGE ,P-PRSO>>>)>
<COND (<NOT <==? <SET PTR <GET ,P-ITBL ,P-NC2>> 0>>
<SETG P-SLOCBITS <GETB ,P-SYNTAX ,P-SLOC2>>
<OR <SNARFEM .PTR <GET ,P-ITBL ,P-NC2L> ,P-PRSI> <RFALSE>>
<COND (<NOT <0? <GET ,P-BUTS ,P-MATCHLEN>>>
<COND (<==? <GET ,P-PRSI ,P-MATCHLEN> 1>
<SETG P-PRSO <BUT-MERGE ,P-PRSO>>)
(T <SETG P-PRSI <BUT-MERGE ,P-PRSI>>)>)>)>
<RTRUE>>
<ROUTINE BUT-MERGE (TBL "AUX" LEN BUTLEN (CNT 1) (MATCHES 0) OBJ NTBL)
<SET LEN <GET .TBL ,P-MATCHLEN>>
<PUT ,P-MERGE ,P-MATCHLEN 0>
<REPEAT ()
<COND (<DLESS? LEN 0> <RETURN>)
(<ZMEMQ <SET OBJ <GET .TBL .CNT>> ,P-BUTS>)
(T
<PUT ,P-MERGE <+ .MATCHES 1> .OBJ>
<SET MATCHES <+ .MATCHES 1>>)>
<SET CNT <+ .CNT 1>>>
<PUT ,P-MERGE ,P-MATCHLEN .MATCHES>
<SET NTBL ,P-MERGE>
<SETG P-MERGE .TBL>
.NTBL>
<GLOBAL P-NAM <>>
<GLOBAL P-ADJ <>>
<GLOBAL P-ADVERB <>>
<GLOBAL P-ADJN <>>
<GLOBAL P-PRSO <ITABLE NONE 50>>
<GLOBAL P-PRSI <ITABLE NONE 50>>
<GLOBAL P-BUTS <ITABLE NONE 50>>
<GLOBAL P-MERGE <ITABLE NONE 50>>
<GLOBAL P-OCLAUSE <ITABLE NONE 50>>
<GLOBAL P-MATCHLEN 0>
<GLOBAL P-GETFLAGS 0>
<CONSTANT P-ALL 1>
<CONSTANT P-ONE 2>
<CONSTANT P-INHIBIT 4>
<GLOBAL P-CSPTR <>>
<GLOBAL P-CEPTR <>>
<ROUTINE SNARFEM (PTR EPTR TBL "AUX" (BUT <>) LEN WV WRD NW (WAS-ALL <>))
<SETG P-AND <>>
<COND (<==? ,P-GETFLAGS ,P-ALL>
<SET WAS-ALL T>)>
<SETG P-GETFLAGS 0>
<SETG P-CSPTR .PTR>
<SETG P-CEPTR .EPTR>
<PUT ,P-BUTS ,P-MATCHLEN 0>
<PUT .TBL ,P-MATCHLEN 0>
<SET WRD <GET .PTR 0>>
<REPEAT ()
<COND (<==? .PTR .EPTR>
<SET WV <GET-OBJECT <OR .BUT .TBL>>>
<COND (.WAS-ALL <SETG P-GETFLAGS ,P-ALL>)>
<RETURN .WV>)
(T
<SET NW <GET .PTR ,P-LEXELEN>>
<COND (<EQUAL? .WRD ,W?ALL ,W?BOTH>
<SETG P-GETFLAGS ,P-ALL>
<COND (<==? .NW ,W?OF>
<SET PTR <REST .PTR ,P-WORDLEN>>)>)
(<EQUAL? .WRD ,W?BUT ,W?EXCEPT>
<OR <GET-OBJECT <OR .BUT .TBL>> <RFALSE>>
<SET BUT ,P-BUTS>
<PUT .BUT ,P-MATCHLEN 0>)
(<EQUAL? .WRD ,W?A ,W?ONE>
<COND (<NOT ,P-ADJ>
<SETG P-GETFLAGS ,P-ONE>
<COND (<==? .NW ,W?OF>
<SET PTR <REST .PTR ,P-WORDLEN>>)>)
(T
<SETG P-NAM ,P-ONEOBJ>
<OR <GET-OBJECT <OR .BUT .TBL>> <RFALSE>>
<AND <0? .NW> <RTRUE>>)>)
(<AND <EQUAL? .WRD ,W?AND ,W?COMMA>
<NOT <EQUAL? .NW ,W?AND ,W?COMMA>>>
<SETG P-AND T>
<OR <GET-OBJECT <OR .BUT .TBL>> <RFALSE>>
T)
(<WT? .WRD ,PS?BUZZ-WORD>)
(<EQUAL? .WRD ,W?AND ,W?COMMA>)
(<==? .WRD ,W?OF>
<COND (<0? ,P-GETFLAGS>
<SETG P-GETFLAGS ,P-INHIBIT>)>)
(<AND <SET WV <WT? .WRD ,PS?ADJECTIVE ,P1?ADJECTIVE>>
<ADJ-CHECK .WRD>
;"for LOOK AT CUP OF TEA"
<OR <NOT <EQUAL? .WRD ,W?TEA>>
<NOT <EQUAL? ,P-NAM ,W?CUP>>>>
<SETG P-ADJ .WV>
<SETG P-ADJN .WRD>)
(<WT? .WRD ,PS?OBJECT ,P1?OBJECT>
<SETG P-NAM .WRD>
<SETG P-ONEOBJ .WRD>)>)>
<COND (<NOT <==? .PTR .EPTR>>
<SET PTR <REST .PTR ,P-WORDLEN>>
<SET WRD .NW>)>>>
;<ROUTINE ADJ-CHECK (WRD) ;"original ADJ-CHECK"
<COND (<NOT ,P-ADJ>
<RTRUE>)
(<EQUAL? ,P-ADJ ,W?INNER ,W?OUTER>
<RFALSE>)
(T
<RTRUE>)>>
;"this ADJ-CHECK will grab the first adjective rather than the last, unless it
comes across INNER or OUTER"
<ROUTINE ADJ-CHECK (WRD)
<COND (<NOT ,P-ADJ>
<RTRUE>)
(<EQUAL? .WRD ,W?INNER ,W?OUTER>
<RTRUE>)>>
<CONSTANT SH 128>
<CONSTANT SC 64>
<CONSTANT SIR 32>
<CONSTANT SOG 16>
<CONSTANT STAKE 8>
<CONSTANT SMANY 4>
<CONSTANT SHAVE 2>
<GLOBAL NOUN-MISSING "There seems to be a noun missing in that sentence.">
<ROUTINE GET-OBJECT (TBL "OPTIONAL" (VRB T)
"AUX" GEN BITS LEN XBITS TLEN (GCHECK <>) (OLEN 0) OBJ)
<SET XBITS ,P-SLOCBITS>
<SET TLEN <GET .TBL ,P-MATCHLEN>>
<COND (<BTST ,P-GETFLAGS ,P-INHIBIT> <RTRUE>)>
<COND (<AND <NOT ,P-NAM> ,P-ADJ <WT? ,P-ADJN ,PS?OBJECT ,P1?OBJECT>>
<SETG P-NAM ,P-ADJN>
<SETG P-ADJ <>>)>
<COND (<AND <NOT ,P-NAM>
<NOT ,P-ADJ>