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7-sources/cmdpar.mac
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UNIVER CMDPAR -- Parameter File To Use CMDPAR
SUBTTL /PJT/MLB/DC/PJT/SSC FEB-81
;
;
; COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1981, 1986.
; ALL RIGHTS RESERVED.
;
; THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND
; COPIED ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE AND WITH
; THE INCLUSION OF THE ABOVE COPYRIGHT NOTICE. THIS SOFTWARE OR
; ANY OTHER COPIES THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE
; AVAILABLE TO ANY OTHER PERSON. NO TITLE TO AND OWNERSHIP OF THE
; SOFTWARE IS HEREBY TRANSFERRED.
;
; THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT
; NOTICE AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL
; EQUIPMENT CORPORATION.
;
; DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF
; ITS SOFTWARE ON EQUIPMENT THAT IS NOT SUPPLIED BY DIGITAL.
;
SALL ;SUPRESS MACRO EXPANSIONS
EXTERN .NEXT,.TAKE ;DEFINED IN CPATOP ITSELF
SUBTTL FUNCTION CODES
;Note: The following function code symbols must agree with analogous
;definitions found in MONSYM.
.CMKEY==0 ;KEYWORD
.CMNUM==1 ;NUMBER
.CMNOI==2 ;NOISE WORD
.CMSWI==3 ;SWITCH
.CMIFI==4 ;INPUT FILE
.CMOFI==5 ;OUTPUT FILE
.CMFIL==6 ;GENERAL FILESPEC
.CMFLD==7 ;ARBITRARY FIELD
.CMCFM==10 ;CONFIRM
.CMDIR==11 ;DIRECTORY NAME (PPN)
.CMUSR==12 ;USER NAME (PPN)
.CMCMA==13 ;COMMA
.CMINI==14 ;INITIALIZE COMMAND
.CMFLT==15 ;BUT NOT SUPPORTED ON 10
.CMDEV==16 ;DEVICE NAME
.CMTXT==17 ;TEXT
.CMTAD==20 ;BUT NOT SUPP ON 10
.CMQST==21 ;QUOTED STRING
.CMUQS==22 ;UNQUOTED STRING
.CMTOK==23 ;TOKEN
.CMNUX==24 ;NUMBER DELIMITED BY NON-DIGIT
.CMACT==25 ;ACCOUNT
.CMNOD==26 ;NODE
; MASK WORDS FOR .CMFLD -- DIGITS, ALPHS (U & L), AND DASH
;
FLDB0.==777777,,777760
FLDB1.==777754,,1760
FLDB2.==400000,,760
FLDB3.==400000,,760
;FLAGS
CM%ESC==:1B0 ;ESC SEEN
CM%NOP=1B1 ;NO PARSE
CM%EOC=1B2 ;END OF COMMAND SEEN
CM%RPT=1B3 ;REPEAT PARSE NEEDED
CM%SWT=1B4 ;SWITCH TERMINATED WITH ":"
CM%PFE=1B5 ;PREVIOUS FIELD ENDED WITH ESC
CM%RAI=1B6 ;RAISE INPUT
CM%XIF=1B7 ;NO INDIRECT FILES
CM%WKF=1B8 ;WAKEUP AFTER EACH FIELD
;REMOVE CM%NJF 9/21/79 MLB
CM%BRK==:1B13 ;INDICATES .CMBRK HAS DATA
CM%PO=1B14 ;PARSE ONLY FLAG
CM%HPP=1B15 ;HELP PTR PRESENT
CM%DPP=1B16 ;DEFAULT PTR PRESENT
CM%SDH=1B17 ;SUPPRESS DEFAULT HELP MESSAGE
;FLAGS FOR CMSWI FUNCTION
CM%VRQ=1B0 ;VALUE REQUIRED
;FLAGS FOR TIME AND DATE
CM%IDA==1B0 ;INPUT DATE
CM%ITM==1B1 ;INPUT TIME
CM%NCI==1B2 ;NO CONVERT TO INTERNAL
;FLAGS IN KEYWORD TABLE (FIRST WORD OF STRING IF B0-6 = 0)
CM%INV=1B35 ;INVISIBLE
CM%NOR=1B34 ;NO-RECOGNIZE (PLACE HOLDER)
CM%ABR=1B33 ;ABBREVIATION
CM%FW=1B7 ;FLAG WORD (ALWAYS SET)
; STRING COMPARE (S%SCMP) FLAGS
SC%LSS==1B0 ;TEST STRING LESS THAN BASE STRING
SC%SUB==1B1 ;TEST STRING SUBSET OF BASE STRING
SC%GTR==1B2 ;TEST STRING GREATER THAN BASE STRING
;(IF NONE, EXACT MATCH IS RESULT)
; TABLE LOOK UP (S%TBLK) FLAGS
TL%NOM==1B0 ;NO MATCH
TL%AMB==1B1 ;AMBIGUOUS
TL%ABR==1B2 ;UNIQUE ABBREVIATION
TL%EXM==1B3 ;EXACT MATCH
CM%INT==1B9 ;INTERRUPT RET. (10 AND 20..CMDPAR DEFINED)
; COMMAND REPLY
;THIS BLOCK IS A DESCRIPTION OF THE ELEMENTS AVAILABLE TO THE
;ACTION,PREFILL, AND ERROR ROUTINES WHEN CALLED
;CALL S1/ LENGTH OF THE BLOCK
; S2/ ADDRESS OF THE BLOCK
CR.FLG==0 ;CSB FLAGS,, CSB ADDR
CR.RES==1 ; ???
CR.PDB==2 ;GIVEN PDB,,USED PDB
CR.COD==3 ;CODE TYPE OF CURRENT PDB
CR.SAV==4 ;TOKEN ENTRY FOR CURR FIELD
CR.SIZ==CR.SAV+1 ;SIZE OF COMMAND REPLY BLOCK
;COMMAND ERROR BUFFER SIZE
ERRBSZ==20 ;SETUP 20 WORDS FOR NOW
SUBTTL COMMAND FUNCTION MACROS
; THE FOLLOWING FUNCTION SPECIFIC MACROS ARE PROVIDED FOR THE PURPOSE OF
;DEFINING THE PDB COMMAND TREE. THE MACROS AND THEIR SYNTAX IS SHOWN BELOW:
; Where upper case identifies keywords which must be coded as shown
;and lower case identifies variable information which must be provided
;by the programmer, e.g., a symbol which represents the address of a
;block.
; The variable parameters are as follows:
; "next__pdb_address" is addr of next parser data block to use in parse
; "table__address" is the address of keyword table in TBLUK format
; "radix" is the radix in which the number will be input, in octal
; "help__text" is a string to be output on a ?
; "noise__text" is string representing the noise phrase
; "keyword__list" is an optional list of keywords which further control parsing.
; The general form of a keyword parameter is:
;
; KEYWORD (argument)
;
; the entire list of keywords must be enclosed by angle brackets "<", ">"
; and the keyword elements are separated blanks or a comma.
; The valid keywords are:
;
; $ACTION (special__action__routine)
; AC$NOI (pdb of common $NOISE)
; AC$R0/AC$R1 (upper-limit of $NUMBER)
;
; $ALTERNATE (alternate__pdb)
;
; $DEFAULT (default__string)
;
; $ERROR (error__routine)
;
; $ERRPDB (next_pdb)
;
; $NEXT (next__pdb__address)
;
; $PDEFAULT (default__address)
;
; $PREFILL (default__filling__routine)
;
; EXAMPLE: $KEY (NOIPDB,KYTBL1,<$ACTION(CHKIT)>)
; The token parsing macros are as follows:
;; $ACCOUNT (next__pdb__address,help__text,keyword__list)
;
;; $COMMA (next__pdb__address,keyword__list)
;
;; $CTEXT (next__pdb__address,help__text,keyword__list)
;
;; $CRLF (,keyword__list)
;
;; $DATE (next__pdb__address,keyword__list)
;
;; $DEV (next__pdb__address,keyword__list)
;
;; $DIR (next__pdb__address,keyword__list)
;
;; $DIGIT (next__pdb__address,radix,help__text,keyword__list)
;
;; $FILE (next__pdb__address,help__text,keyword__list)
; $IFILE (next__pdb__address,help__text,keyword__list)
; $OFILE (next__pdb__address,help__text,keyword__list)
;
;; $FIELD (next__pdb__address,help__text,keyword__list) (also $FNAME)
;
;; $FLOAT (next__pdb__address,help__text,keyword__list)
;
;; $INIT (next__pdb__address,keyword__list) (also $INITC)
;
;; $KEY (next__pdb__address,table__address,keyword__list)
;
;; $KEYDSP (table__address,keyword__list)
;
;; $NUMBER (next__pdb__address,radix,help__text,keyword__list)
;; $NUMGE
;; $NUMGT
;
;; $NODNM (next__pdb__address,help__text,keyword__list)
;
;; $NOISE (next__pdb__address,noise__text,keyword__list)
;
;; $QUOTE (next__pdb__address,help__text,keyword__list)
;
;; $SUB (next-pdb, 1st pdb of subroutine)
;
;; $SWITCH (next__pdb__address,table__address,keyword__list)
;
;; $TIME (next__pdb__address,keyword__list)
;
;; $TAD (next__pdb__address,keyword__list)
;
;; $TOKEN (next__pdb__address,token__character,keyword__list)
;
;; $USER (next__pdb__address,keyword__list)
;
;; $UQSTR (next__pdb__address,BRKSET,help__text,keyword__list)
; THE FOLLOWING SUPPORT MACROS ARE DEFINED TO ALLOW THE USER TO DEFINE THE
;KEYWORD AND SWITCH TABLES USED BY THE KEYWORD AND SWITCH PDB'S:
;
;; DSPTAB (next__pdb__address,user__code,keyword__entry,[flags])
;
;; KEYTAB (user__code,keyword__entry)
;
;; $STAB
;
;; $ETAB
;
DEFINE $$TYPE (ARG),<DEFINE .$TYP <ARG>
.%TYPE==1>
DEFINE $FLAGS (ARG),<DEFINE .$FLGS <ARG>
.%FLGS==1>
DEFINE $PDATA (ARG),<DEFINE .$DATA <ARG>
.%DATA==1>
DEFINE $HELP (ARG),<
IFDIF <ARG> <>,<
DEFINE .$HLPM <POINT 7,[ASCIZ\ARG\]>
.%HLPM==1>>
DEFINE $DEFAULT (ARG),<DEFINE .$DEFM <POINT 7,[ASCIZ\ARG\]>
.%DEFM==1>
DEFINE $PDEFAULT (ARG),<DEFINE .$DEFM <POINT 7,<ARG>>
.%DEFM==1>
DEFINE $ALTERNATE (ARG),<DEFINE .$LST <ARG+1>
.%LST==1>
DEFINE $NEXT (ARG),<DEFINE .$NXT <ARG>
.%NXT==1>
DEFINE $ERROR (ARG),<DEFINE .$ERTN <ARG>
.%ERTN==1>
DEFINE $BREAK (ARG),<DEFINE .$BREA <ARG>
.%BREA==1>
DEFINE $ERRPDB (ARG),<DEFINE .$ERTN <1B0+ARG+1>
.%ERTN==1>
DEFINE $PREFILL (ARG),<DEFINE .$DEFR <ARG>
.%DEFR==1>
SUBTTL USER AND SPECIAL ACTION ROUTINES
DEFINE $ACTION (ARG),<.$RTN==ARG!.$RTN
.%RTN==1>
; AC$NOI - CAUSES CMDPAR TO PLACE NOISE PDB IDENT BY ARG BETWEEN
; THE KEY TABLE AND THE PDB'S DESCRIBED AS NEXT OF EACH ENTRY
;
DEFINE AC$NOI (ARG),<$ACTION(AC%NOI!ARG)>
; AC$R0 - VERIFY RANGE IS 0 TO ARG (BLANK IMPLIES INFINITY)
; AC$R1 - VERIFY RANGE IS 1 TO ARG (BLANK IMPLIES INFINITY)
;
; ARG MAY NOT BE GTR THAN HALF WORD. ALSO IF NO ARG SPECIFIED,
; REGULAR ACTION ROUTINE MAY STILL BE SPECIFIED
;
DEFINE AC$R0(ARG<AC%AAC>),<$ACTION(AC%R0N!ARG)>
DEFINE AC$R1(ARG<AC%AAC>),<$ACTION(AC%R1N!ARG)>
; AC$SET - SET A PDB LABEL VARIABLE TO THE SPECIFIED PDB
;
DEFINE AC$SET (VAL$)<
$ACTION<[MOVEI 0,VAL$ ;;GET PDB ADDR
MOVEM 0,VAR$AD ;;SET THE LABEL VAR
SETOM 0 ;;INDIC SUCCESSFUL ACTION
POPJ P,]>
>
; ACTION FLAGS (LEFT HALF OF ACTION WORD OF PDB)
;
AC%NOI==1B0 ;USE COMMON NOISE
AC%R0N==1B1 ;RANGE CHK, 0 - N
AC%R1N==1B2 ;RANGE CHK, 1 - N
AC%RAN==1B3 ;RANGE CHK, M - N
AC%AAC==1B4 ;ALLOW REGULAR ACTION
SUBTTL INITIALIZE PARSER MACRO MACROS
;INITIALIZE ALL THE INNER MACROS
;
$$TYPE (0)
$FLAGS (0)
$HELP (<>)
$DEFAULT (0)
$ALTERNATE (0)
$NEXT (0)
$ERROR (0)
$BREAK (0)
$PREFILL (0)
DEFINE .$RESET <
SALL
XLIST
DEFINE .$TYP <0>
.%TYPE==0
DEFINE .$FLGS <0>
.%FLGS==0
DEFINE .$DATA <0>
.%DATA==0
DEFINE .$HLPM <>
.%HLPM==0
DEFINE .$DEFM <0>
.%DEFM==0
DEFINE .$LST <0>
.%LST==0
DEFINE .$BREA <0>
.%BREA==0
DEFINE .$NXT <0>
.%NXT==0
DEFINE .$ERTN <0>
.%ERTN==0
.$RTN==0
.%RTN==0
DEFINE .$DEFR <0>
.%DEFR==0>;END OF .$RESET
SUBTTL .$BUILD MACRO
;REDEFINE PDB.XX
DEFINE .$BUILD (%FDBL,%PDBL,%PDB,%FLAG) < ;;BUILD A PDB
%FLAG==<.$TYP>B8!.$FLGS!<.$LST> ;;DEFINE .CMFNP WORD OF FDB
IFN <.%BREA>,<%FLAG==%FLAG!CM%BRK> ;; IF BREAK SET IS PROVIDED
IFN <.%HLPM>,<%FLAG==%FLAG!CM%HPP!CM%SDH> ;;IF HELP TEXT, INCLUDE FLAG
;;BIT AND SUPPRESS HELP
IFN <.%DEFM>,<%FLAG==%FLAG!CM%DPP> ;;IF DEFAULT, INCLUDE FLAG BIT
%PDB: XWD %PDBL,%FDBL ;; LENGTH OF PDB,LENGTH OF FDB
EXP %FLAG ;;ASSEMBLE WORD .CMFNP OF FDB
EXP .$DATA ;;ASSEMBLE WORD .CMDAT OF FDB
IFN <.%HLPM!.%DEFM!.%BREA>,<
EXP .$HLPM> ;;ASSEMBLE WORD .CMHLP OF FDB
IFN <.%DEFM!.%BREA>,<
EXP .$DEFM> ;;ASSEMBLE WORD .CMDEF OF FDB
IFN <.%BREA>,< EXP .$BREA> ;;ASSEMBLE WORD .CMBRK OF FDB
%FDBL==.-%PDB ;LENGTH OF THE FDB
IFN <.%NXT!.%DEFR!.%RTN!.%ERTN>,< .$NXT > ;;ASSEMBLE WORD PDB.NX OF PDB
IFN <.%DEFR!.%RTN!.%ERTN>,< .$RTN > ;;GENERTAT ACTION ROUTINE
IFN <.%DEFR!.%ERTN>,< EXP .$ERTN> ;;GENERATE THE ERROR ROUTINE
IFN <.%DEFR>,< EXP .$DEFR> ;;GENERATE DEFAULT FILLING ROUTINE
%PDBL==.-%PDB ;;LENGTH OF THE WHOLE BLOCK
IF2< PURGE %FDBL,%PDBL,%PDB,%FLAG>
LIST>;END .$BUILD
SUBTTL PARSER MACROS FOR EACH FUNCTION
DEFINE $KEYDSP (TABLE,ARGLST) <
.$RESET
$$TYPE (.CMKEY)
$PDATA (TABLE)
$NEXT (0)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $KEY (NXT,TABLE,ARGLST) <
.$RESET
$$TYPE (.CMKEY)
$PDATA (TABLE)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $NUMBER (NXT,RADIX,HELP,ARGLST) <
.$RESET
$$TYPE (.CMNUM)
$PDATA (RADIX)
$HELP (<>)
$NEXT (NXT)
IFIDN <HELP> <>,< IRP ARGLST,<ARGLST>
.$BUILD>
IFDIF <HELP> <>,<
$HELP (HELP)
IRP ARGLST,<ARGLST>
.$BUILD>>
; $NUMGE - NUMBER MUST BE GE 0
; $NUMGT - NUM MUST BE GTR 0
;
DEFINE $NUMGE(A1,A2,A3,A4) < $NUMBER (A1,A2,<A3>,<A4,AC$R0>) >
DEFINE $NUMGT(A1,A2,A3,A4) < $NUMBER (A1,A2,<A3>,<A4,AC$R1>) >
DEFINE $DIGIT (NXT,RADIX,HELP,ARGLST) <
.$RESET
$$TYPE (.CMNUX)
$PDATA (RADIX)
$HELP (<>)
$NEXT (NXT)
IFIDN <HELP> <>,< IRP ARGLST,<ARGLST>
.$BUILD>
IFDIF <HELP> <>,<
$HELP (HELP)
IRP ARGLST,<ARGLST>
.$BUILD>>
DEFINE $NOISE (NXT,TEXT,ARGLST) <
.$RESET
$$TYPE (.CMNOI)
$PDATA (<POINT 7,[ASCIZ\TEXT\]>)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $SUB (NXT, SUBPDB)<
EXP SUBPDB ;;ADDR OF PDB TO "CALL"
EXP NXT ;;PDB TO RETURN TO
EXP Q'SUBPDB# ;;LOCATION TO STORE RETURN PDB IN
>
SUB.ST==0 ;OFFSETS INTO $SUB BLOCK
SUB.RA==1
SUB.RV==2
DEFINE $SWITCH (NXT,TABLE,ARGLST) <
.$RESET
$$TYPE (.CMSWI)
$PDATA (TABLE)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $SWIDSP (TABLE,ARGLST) <
.$RESET
$$TYPE (.CMSWI)
$PDATA (TABLE)
$NEXT (0)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $IFILE (NXT,HELP,ARGLST) <
.$RESET
$$TYPE (.CMIFI)
$HELP (<>)
$NEXT (NXT)
IFIDN <HELP> <>,< IRP ARGLST,<ARGLST>
.$BUILD>
IFDIF <HELP> <>,<
$HELP (HELP)
IRP ARGLST,<ARGLST>
.$BUILD>>
DEFINE $OFILE (NXT,HELP,ARGLST) <
.$RESET
$$TYPE (.CMOFI)
$NEXT (NXT)
$HELP (<>)
IFIDN <HELP> <>,< IRP ARGLST,<ARGLST>
.$BUILD>
IFDIF <HELP> <>,<
$HELP (HELP)
IRP ARGLST,<ARGLST>
.$BUILD>>
DEFINE $FILE (NXT,HELP,ARGLST) <
.$RESET
$$TYPE (.CMFIL)
$HELP (<>)
$NEXT (NXT)
IFIDN <HELP> <>,< IRP ARGLST,<ARGLST>
.$BUILD>
IFDIF <HELP> <>,<
$HELP (HELP)
IRP ARGLST,<ARGLST>
.$BUILD>>
DEFINE $FIELD (NXT,HELP,ARGLST) <
.$RESET
$$TYPE (.CMFLD)
$NEXT (NXT)
$HELP (<>)
IFIDN <HELP> <>,< IRP ARGLST,<ARGLST>
.$BUILD>
IFDIF <HELP> <>,<
$HELP (HELP)
IRP ARGLST,<ARGLST>
.$BUILD>>
SYN $FIELD,$FNAME
DEFINE $CRLF (ARGLST),<
.$RESET
$$TYPE (.CMCFM)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $DIR (NXT,ARGLST) <
.$RESET
$$TYPE (.CMDIR)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $USER (NXT,ARGLST) <
.$RESET
$$TYPE (.CMUSR)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $COMMA (NXT,ARGLST) <
.$RESET
$$TYPE (.CMCMA)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $INIT (NXT,ARGLST) <
.$RESET
$NEXT (NXT)
$$TYPE (.CMINI)
IRP ARGLST,<ARGLST>
.$BUILD>
SYN $INIT,$INITC
DEFINE $FLOAT (NXT,HELP,ARGLST) <
.$RESET
$$TYPE (.CMFLT)
$HELP (<>)
$NEXT (NXT)
IFIDN <HELP> <>,< IRP ARGLST,<ARGLST>
.$BUILD>
IFDIF <HELP> <>,<
$HELP (HELP)
IRP ARGLST,<ARGLST>
.$BUILD>>
DEFINE $DEV (NXT,ARGLST) <
.$RESET
$$TYPE (.CMDEV)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $CTEXT (NXT,HELP,ARGLST) <
.$RESET
$$TYPE (.CMTXT)
$HELP (<>)
$NEXT (NXT)
IFIDN <HELP> <>,< IRP ARGLST,<ARGLST>
.$BUILD>
IFDIF <HELP> <>,<
$HELP (HELP)
IRP ARGLST,<ARGLST>
.$BUILD>>
DEFINE $DATE (NXT,ARGLST) <
.$RESET
$$TYPE (.CMTAD)
$PDATA (CM%IDA)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $TIME (NXT,ARGLST) <
.$RESET
$$TYPE (.CMTAD)
$PDATA (CM%ITM)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $TAD (NXT,ARGLST) <
.$RESET
$$TYPE (.CMTAD)
$PDATA (<CM%IDA!CM%ITM>)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $QUOTE (NXT,HELP,ARGLST) <
.$RESET
$$TYPE (.CMQST)
$HELP (<>)
$NEXT (NXT)
IFIDN <HELP> <>,< IRP ARGLST,<ARGLST>
.$BUILD>
IFDIF <HELP> <>,<
$HELP (HELP)
IRP ARGLST,<ARGLST>
.$BUILD>>
DEFINE $UQSTR (NXT,BRKSET,HELP,ARGLST) <
.$RESET
$$TYPE (.CMUQS)
$HELP (<>)
$NEXT (NXT)
$PDATA (BRKSET)
IFIDN <HELP> <>,< IRP ARGLST,<ARGLST>
.$BUILD>
IFDIF <HELP> <>,<
$HELP (HELP)
IRP ARGLST,<ARGLST>
.$BUILD>>
DEFINE $NODNM (NXT,HELP,ARGLST) <
.$RESET
$$TYPE (.CMNOD)
$HELP (<>)
$NEXT (NXT)
IFIDN <HELP> <>,< IRP ARGLST,<ARGLST>
.$BUILD>
IFDIF <HELP> <>,<
$HELP (HELP)
; $FLAGS (CM%PO)
IRP ARGLST,<ARGLST>
.$BUILD>>
DEFINE $ACCOUNT (NXT,HELP,ARGLST) <
.$RESET
$$TYPE (.CMACT)
$HELP (<>)
$NEXT (NXT)
IFIDN <HELP> <>,< IRP ARGLST,<ARGLST>
.$BUILD>
IFDIF <HELP> <>,<
$HELP (HELP)
IRP ARGLST,<ARGLST>
.$BUILD>>
DEFINE $TOKEN (NXT,CHAR,ARGLST) <
.$RESET
$$TYPE (.CMTOK)
$PDATA (<POINT 7,[ASCIZ\CHAR\]>)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $OTOK (NXT,CHCODE,ARGLST) <
.$RESET
$$TYPE (.CMTOK)
$PDATA (<POINT 7,[CHCODE]>)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
DEFINE $QTOK (NXT,CHAR,ARGLST)<
.$RESET
$$TYPE (.CMTOK)
$PDATA (<POINT 7,[ASCIZ CHAR]>)
$NEXT (NXT)
IRP ARGLST,<ARGLST>
.$BUILD>
SUBTTL KEYWORD TABLE MACROS
;THE TB$ MACROS ARE USED TO BUILD ENTIRE TABLES AT ONCE.
;WHEN THIS CANNOT BE DONE, DSPTAB AND KEYTAB CAN BE USED TO GEN INDIV ENTRIES
;DSPTAB - MACRO TO BUILD A DISPATCH TABLE ENTRY
; USED IN CONJUNCTION WITH $KEYDSP MACRO
DEFINE DSPTAB (NXT,CODE,KEY,FLAGS),<
$$ENTAB (KEY,FLAGS,<[XWD CODE,NXT]>) ;;DO KEY/DISP INDEP WORK
>
; $$DENT - GENERATE ENTRY IN DISPATCH TABLE
; ASSUMES $$LABL & $$CODE GEN PROPER DISPATCH FOR EACH TAB ENTRY.
; LABEL AND CODE ARE FUNCTION OF ROOT$
; IF NO EXPLICIT KYWD STRING GIVEN, USE ROOT$
; SFX IS NORMALLY EITHER NUL OR :
;
DEFINE $$DENT (SFX,ROOT$,NAM$,FL$),<
IFB <NAM$>,< $$ENTAB (ROOT$'SFX, FL$, $$DVAL(ROOT$)) >
IFNB <NAM$>,< $$ENTAB (NAM$'SFX, FL$, $$DVAL(ROOT$)) >
>
DEFINE $$DDUM(A$)<
IFN P$COLON,<$$DENT(:,A$)> ;STRIP PAREN IF ANY
IFE P$COLON,<$$DENT(,A$)>
>
DEFINE $$DVAL(KEY1)<[XWD $$CODE(KEY1),$$LABL(KEY1)]>
; $$ENTAB - ENTRY IN EITHER TYPE OF TABLE
; LEFT HALF OF ENTRY FUNCT OF WHETHER FLAGS DEFINED
; KEY/DISP DIFS IN RH RESOLVED BY CALLER OF $$ENTAB
;
DEFINE $$ENTAB(NAM$,FL$,RH$)<
IFB <FL$>,<XWD [ASCIZ\NAM$\],RH$> ;;TABLE ENTRY NO FLAGS
IFNB <FL$>,<
XWD [EXP CM%FW!FL$ ;;FLAG INFO
ASCIZ\NAM$\], RH$ ;;REGULAR INFO
>
>
;KEYTAB - MACRO TO BUILD A KEYWORD OR SWITCH TABLE ENTRY
; USED IN CONJUNCTION WITH $KEY OR $SWITCH MACRO
DEFINE KEYTAB (CODE,KEY,FLAGS),<
$$ENTAB (KEY,FLAGS,CODE) ;;DO KEY/DISP INDEP WORK
>
; $$KENT - GENERATE ENTRY IN KEY TABLE
; ASSUMES $$CODE GEN PROPER DISPATCH FOR EACH TAB ENTRY.
; CODE IS FUNCTION OF ROOT$
; IF NO EXPLICIT KYWD STRING GIVEN, USE ROOT$
;
DEFINE $$KENT (ROOT$,NAM$,FL$),<
IFB <NAM$>,< $$ENTAB (ROOT$, FL$, $$KVAL(ROOT$)) >
IFNB <NAM$>,< $$ENTAB (NAM$, FL$, $$KVAL(ROOT$)) >
>
DEFINE $$KDUM(A$)<$$KENT(A$)> ;STRIP PAREN IF ANY
DEFINE $$KVAL(KEY1)<$$CODE(KEY1)>
;$STAB/$ETAB - MACROS TO DELINEATE START AND END OF KEYWORD TABLE
; USED IN CONJUNCTION WITH DSPTAB AND KEYTAB MACROS
DEFINE $STAB (%X,%Y) <
%X==.
XWD %Y-1,%Y-1
DEFINE $ETAB <
%Y==.-%X>>
; TB$DSP - GENERATES DISPATCHING TABLE FOR A SET OF OPTIONS
; ARGUMENTS:
; TYP$ = PREFIX TO IDENT PARTIC TABLE
; FLD$ = ALPH LIST OF ENTRIES IN TABLE
; NOTES:
; IF ENTRY HAS IMBEDDED DASH(ES) EG. A-1 OR A-B-C,
; REPRESENT AS <A,1> AND <A,B,C>.
;
DEFINE TB$DSP(TYP$,FLD$)<
TYP$'TB:
$STAB ;;START TABLE
IRP FLD$,<$$DDUM(FLD$)> ;;EACH TABLE ENTRY
$ETAB
>
; TB$KEY - GENERATES NON-DISPATCHING TABLE FOR A SET OF OPTIONS
; ARGUMENTS:
; TYP$ = PREFIX TO IDENT PARTIC TABLE
; FLD$ = ALPH LIST OF ENTRIES IN TABLE
; NOTES:
; IF ENTRY HAS IMBEDDED DASH(ES) EG. A-1 OR A-B-C,
; REPRESENT AS <A,1> AND <A,B,C>.
;
DEFINE TB$KEY(TYP$,FLD$)<
TYP$'TB:
$STAB ;;START TABLE
IRP FLD$,<$$KDUM(FLD$)> ;;EACH TABLE ENTRY
$ETAB
>
SUBTTL PRE-DEFINED CODE/LABEL ALGORITHMS FOR BUILDING TABLES
; CM$TAB - DEFINES CMD DISPATCH TABLE
;
DEFINE CM$TAB(FLD$,KDOPT$)<
DEFINE $$CODE(X$)<%'X$>
DEFINE $$LABL(X$)<.'X$> ;;DISPATCH BASED ON VERB NAME
$KEYDSP(CMD.TB,<KDOPT$>) ;;DISPATCH TO KYWD TABLE
TB$DSP(CMD.,<FLD$>) ;;DO THE REAL WORK
>
; KY$WRD - SINGLE WORD TABLE & PARSE CODE ALWAYS SET TO 0
; KY$TAB - DEFINES OPTION DISPATCH TABLE
; PARSE CODE IS NAMED LOCAL TO THE PARTIC TABLE
;
DEFINE KY$TAB(NEXT$,T$,FLD$,KDOPT$)<
DEFINE $$CODE(X$)<T$'%'X$>
$KEY (NEXT$,T$'TB,<KDOPT$>) ;;DISPATCH TO KYWD TABLE
TB$KEY(T$,<FLD$>) ;;DO THE REAL WORK
>
DEFINE KY$WRD(NEXT$,T$,FLD$,KDOPT$)<
DEFINE $$CODE(X$)<0>
$KEY (NEXT$,T$'TB,<KDOPT$>) ;;DISPATCH TO KYWD TABLE
TB$KEY(T$,<FLD$>) ;;DO THE REAL WORK
>
; OP$TAB - DEFINES OPTION DISPATCH TABLE
; BOTH DISPATCH LABEL AND PARSE CODE ARE NAMED LOCAL TO THE PARTIC TABLE
;
DEFINE OP$TAB(T$,FLD$,KDOPT$)<
DEFINE $$CODE(X$)<T$'%'X$>
DEFINE $$LABL(Y$)<T$''Y$> ;;DISPATCH BASED ON FLD NAME
$KEYDSP (T$'TB,<KDOPT$>) ;;DISPATCH TO KYWD TABLE
TB$DSP(T$,<FLD$>) ;;DO THE REAL WORK
>
; SV$TAB - DEFINES SWIT DISPAT TAB FOR GROUP OF SWITCHES THAT ALL TAKE VALS
; BOTH DISPATCH LABEL AND PARSE CODE ARE NAMED LOCAL TO THE PARTIC TABLE
;
DEFINE SV$TAB(T$,FLD$,KDOPT$)<
DEFINE $$CODE(X$)<T$'%'X$>
DEFINE $$LABL(X$)<T$''X$> ;;DISPATCH BASED ON FLD NAME
P$COLON==1 ;;APPEND COLONS
$SWITCH (0,T$'TB,<KDOPT$>) ;;DISPATCH TO KYWD TABLE
TB$DSP(T$,<FLD$>) ;;DO THE REAL WORK
P$COLON==0
>
; SW$TAB - DEFINES DISPATCH TABLE FOR SWITCHES
;
; IF A SWITCH TAKES A VALUE, SUFFIX : TO END OF 2ND ELEMENT OF SUB-ARG
;
DEFINE SW$TAB(T$,FLD$,KOPT$)<
DEFINE $$CODE(X$)<T$'%'X$>
DEFINE $$LABL(X$)<T$''X$> ;;DISPATCH BASED ON FLD NAME
$SWITCH (0,T$'TB,<KOPT$>) ;;DISPATCH TO KYWD TABLE
TB$DSP(T$,<FLD$>) ;;DO THE REAL WORK
>
SUBTTL ARGUMENT BLOCK FOR CALLING THE PARSER
;THIS IS A DESCRIPTION OF THE ARGUMENT BLOCK USED
;TO CALL THE PARSER ROUTINE (OPRPAR)
; S1/ LENGTH OF THE BLOCK
; S2/ ADDRESS OF THE BLOCK
PHASE 0
PAR.TB:! BLOCK 1 ;ADDRESS OF THE TABLES
PAR.PM:! BLOCK 1 ;ADDRESS OF THE PROMPT STRING
;DEFAULT TO OPR IF ZERO
PAR.CM:! BLOCK 1 ;ADDRESS TO STORE PARSED DATA
;DEFAULT TO GET PAGE IF ZERO
PAR.SR:! BLOCK 1 ;ADDRESS OF THE STRING TO PARSE
;DEFAULT TTY IF NOT SPECIFIED OR ZERO
;-1 MEANS DO A RESCAN FOR INCORE
PAR.SZ:! ;SIZE OF THE PARSER CALLING BLOCK
DEPHASE
SUBTTL RETURN BLOCK FROM THE PARSER
;THIS BLOCK IS A DESCRIPTION OF THE ARGUMENT BLOCK RETURNED
;BY THE PARSER.
; S1/ LENGTH OF THE BLOCK
; S2/ ADDRESS OF THE BLOCK
PHASE 0
PRT.FL:! BLOCK 1 ;FLAG WORD FOR RETURN
PRT.CM:! BLOCK 1 ;COMMAND MESSAGE ADDRESS
PRT.CF:! BLOCK 1 ;COMMAND FLAG WORD
PRT.MS:! BLOCK 1 ;POINTER TO TEXT OF MESSAGE ON
PRT.SM:! ;SIZE OF PRT ON TRUE RETURN
;FALSE RETURN
PRT.EM:! BLOCK 1 ;POINTER TO ERROR MESSAGE ON
;FALSE RETURN
PRT.EC:! BLOCK 1 ;ERROR CODE RETURNED
;FROM ACTION ROUTINE
PRT.SZ:! ;SIZE OF PRT ON FALSE RETURN
DEPHASE
; FLAGS IN PRT.FL
P.TAKE==1B0 ;TAKE COMMAND PROCESSED
P.CTAK==1B1 ;COMMAND FROM A TAKE COMMAND
P.ACTE==1B2 ;ACTION ROUTINE ERROR
P.NPRO==1B3 ;NO PROCESSING FOR COMMAND
P.ERRO==1B4 ;ERROR FLAG..ERROR OCCURRED
P.REPA==1B5 ;REPARSE REQUIRED
P.INTE==1B6 ;INTERRUPT EXIT FLAG
P.DSPT==1B7 ;DISPLAY THIS TAKE COMMAND
P.ENDT==1B8 ;END OF TAKE FILE
P.DERR==1B9 ;DEFAULT ROUTINE ERROR
P.CEOF==1B10 ;CORE PARSE END OF FILE
SUBTTL PARSED FIELD DESCRIPTION
; FORMAT OF AN ENTRY IN THE TOKEN LIST OUTPUT BY PARSE$
PHASE 0
PFD.HD:! BLOCK 1 ;HEADER WORD FOR BLOCK
PF.TYP==0,,-1 ;TYPE IN THE LEFT HALF
PF.LEN==-1,,0 ;LENGTH IN RIGHT HALF
;INCLUDES THIS WORD
PFD.D1:! BLOCK 1 ;FIRST DATA WORD
PFD.D2:! BLOCK 1 ;SECOND DATA WORD (IF NECESSARY)
PFD.SZ:! ;SIZE OF THE BLOCK
DEPHASE
END