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steco_19840320_1er_E35
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7,3/sed/sed1sw.mac
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TITLE SED1SW - SED SWITCH ROUTINES
SUBTTL A CHRISTOPHER HALL FECIT
;COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1979,1983.
SEARCH SEDSYM
SALL
IFN TOPS10,<
SEARCH UUOSYM
TWOSEG
RELOC 400000
>
IFE TOPS10,<
SEARCH MONSYM
>
;HERE FOR THE COMMAND TO SET A NUMBER OF SWITCHES
SWITCH::MOVE T1,PARPTR ;DID USER TYPE JUST ENTER SWITCH?
CAME T1,[POINT 7,PARBUF]
CAMN T1,[010700,,PARBUF-1]
JRST SWHSTS ;YES - GIVE HIM SOME STATUS INFORMATION
PUSHJ P,ERASPM ;ELSE ERASE PARAMETER
SETZ T1, ;END PARAMETER WITH A NULL
IDPB T1,PARPTR
MOVE PT,[POINT 7,PARBUF]
MOVE T3,PT
ILDB T1,T3 ;GET FIRST CHARACTER
CAIN T1,"/" ;SUPERFLUOUS SLASH?
MOVE PT,T3 ;YES - SKIP IT
PUSHJ P,SWHMNY ;HANDLE THE SWITCH(S) IN THE PARAMETER BUFFER
JRST DISCUR ;RE-POSITION CURSOR AND GET NEW COMMAND
;HERE ON SWITCH WITH NO PARAMETER: GIVE FILE STATUS
SWHNPM::PUSHJ P,SWHBOT ;SET UP THE BOTTOM LINE
MOVEI T1,[ASCIZ /FILE: /]
PUSHJ P,PUTSTG
MOVEI T1,"*" ;GET FILE-IS-CHANGED FLAG
TRNN F,RDO ;IS FILE WRITEABLE,
TLNN F,CHG ; AND HAS IT BEEN CHANGED?
CAIA ;NOT WRITEABLE OR NOT CHANGED - SKIP THIS
IDPB T1,TY ;BOTH - OUTPUT THE FACT THAT IT'S CHANGED
MOVEI T1,FILSPC
PUSHJ P,PUTSTF
PUSHJ P,MAKCPT ;MAKE A GOOD CHARACTER POINTER
MOVE T2,RW ;SAVE REAL ROW POINTER
MOVE PT,[010700,,BUFFER-1]
PUSHJ P,FINDRW ;COUNT PAGES AND LINES FROM START OF BUFFER
EXCH T2,RW
EXCH T2,SAVEAC
SKIPN PAGFLG ;WANT BOTH PAGES AND LINES?
JRST SWHNP1 ;NO - JUST LINES
MOVEI T1,[ASCIZ / PAGE: /]
PUSHJ P,PUTSTG
MOVEI T1,1(T3) ;GET PAGE NUMBER
PUSHJ P,PUTNUM ;OUTPUT PAGE
MOVEI T1,"-"
IDPB T1,TY
AOS T1,SAVEAC ;GET LINE NUMBER
PUSHJ P,PUTNUM ;OUTPUT IT
JRST SWHNP2 ;SKIP LINES-ONLY STUFF
SWHNP1: MOVEI T1,[ASCIZ / LINE: /]
PUSHJ P,PUTSTG
MOVEI T1,1(T2) ;GET LINE NUMBER
PUSHJ P,PUTNUM ;OUTPUT IT
SWHNP2: MOVEI T1,"("
IDPB T1,TY
HRRZ T1,LINPTR ;GET OFFET OF PAGE INTO BUFFER
SUBI T1,BUFFER-1
IMULI T1,^D100 ;TIMES 100
HRRZ T2,EN ;DIVIDED BY SIZE OF FILE
SUBI T2,BUFFER
IDIV T1,T2
PUSHJ P,PUTNUM ;OUTPUT PERCENT THROUGH FILE
MOVEI T1,[ASCIZ /%) POS: /]
PUSHJ P,PUTSTG
MOVEI T1,1(CM) ;OUTPUT COLUMN + SLIDE + 1
ADD T1,SL
PUSHJ P,PUTNUM
SKIPN OLDSPC ;GOT AN ALTERNATE FILE?
JRST SWHNPE ;NO - DON'T TALK ABOUT IT
MOVEI T1,[ASCIZ / ALT: /]
PUSHJ P,PUTSTG
MOVEI T1,OLDSPC
PUSHJ P,PUTSTF
SWHNPE::MOVEI T1," "
IDPB T1,TY
SETZ T1,
MOVE T2,CPL.1 ;GET TERMINAL WIDTH - 1
SUBI T2,3 ;(IN CASE THE TTY COUNTS THE PROT'N CHARS)
IFN TOPS10,<
IDIVI T2,5 ;FIND NUMBER OF WORDS + REMAINDER
ADD T2,[POINT 7,TYPBUF,6] ;ADJUST PTR TO THE RIGHT WIDTH
HRL T2,PTRTBL+1(T3)
>
IFE TOPS10,<
IFN FTECHO,<
ADJBP T2,[POINT 8,TYPBUF,7]
>
IFE FTECHO,<
ADJBP T2,[POINT 7,TYPBUF,6]
>>
DPB T1,T2 ;MAKE MESSAGE END AT WIDTH - 1
PUSHJ P,PUTTYP ;OUTPUT THE TEXT
PUSHJ P,PROTOF ;TURN PROTECTION OFF
TLO F,FBL ;SAY BOTTOM LINE HAS BEEN FRAGGED
JRST DISCUR ;RE-POSITION CURSOR AND RETURN
;SUBROUTINE TO SET UP THE BOTTOM OF THE SCREEN FOR THE SWITCH COMMAND ETC.
SWHBOT::PUSHJ P,RESTPM ;CLEAN UP THE PARAMETER ENTRY
PUSHJ P,CBOTOM ;PUT MESSAGE ON BOTTOM LINE
PUSHJ P,PROTON ;PROTECTED
JRST PUTTYP ;OUTPUT POSITIONING NOW AND RETURN
;HERE ON TOKEN SWITCH (ENTER, BUT NO PARAMETER): GIVE NOMINAL SETTINGS
SWHSTS: PUSHJ P,SWHBOT ;SET UP THE BOTTOM LINE
MOVEI T1,[ASCIZ / RL:/]
PUSHJ P,PUTSTG
MOVE T1,ROLLIN ;OUTPUT NUMBER OF LINES TO ROLL
PUSHJ P,PUTNUM
MOVEI T1,[ASCIZ / RP:/]
PUSHJ P,PUTSTG
MOVE T1,ROLPGS ;OUTPUT NUMBER OF PAGES TO ROLL
PUSHJ P,PUTNUM
MOVEI T1,[ASCIZ / PC:/]
PUSHJ P,PUTSTG
MOVE T1,GOPERC ;OUTPUT PERCENT-GOTO NOMINAL
PUSHJ P,PUTNUM
MOVEI T1,[ASCIZ / SL:/]
PUSHJ P,PUTSTG
MOVE T1,SLIDES ;OUTPUT SIZE OF SLIDE
PUSHJ P,PUTNUM
MOVEI T1,[ASCIZ / IL:/]
PUSHJ P,PUTSTG
MOVE T1,ADDLNS ;OUTPUT NUMBER OF LINES TO INSERT/DELETE
PUSHJ P,PUTNUM
SKIPN T1,ADDLSP ;GOT SPACES TO GO WITH THOSE LINES?
JRST SWHST1 ;NO - SKIP OUTPUT
MOVEI T1,","
IDPB T1,TY
MOVE T1,ADDLSP ;AND SPACES TO GO WITH THOSE LINES
PUSHJ P,PUTNUM
SWHST1: MOVEI T1,[ASCIZ / IS:/]
PUSHJ P,PUTSTG
MOVE T1,ADDSPC ;OUTPUT NUMBER OF SPACES TO INSERT/DELETE
PUSHJ P,PUTNUM
MOVEI T1,[ASCIZ / PK:/]
PUSHJ P,PUTSTG
MOVE T1,PICKLN ;OUTPUT NUMBER OF LINES TO PICK
PUSHJ P,PUTNUM
SKIPN T1,PICKSP ;GOT SPACES TO GO WITH THOSE LINES?
JRST SWHST2 ;NO - SKIP OUTPUT
MOVEI T1,","
IDPB T1,TY
MOVE T1,PICKSP ;AND SPACES TO PICK, TOO
PUSHJ P,PUTNUM
SWHST2: MOVEI T1,[ASCIZ / CS:/]
PUSHJ P,PUTSTG
SKIPN T1,CASLNS ;CHANGING THE CASE OF ANY LINES?
JRST SWHS2A ;NO - SKIP OUTPUT
PUSHJ P,PUTNUM ;YES - OUTPUT THEM AND A COMMA
MOVEI T1,","
IDPB T1,TY
SWHS2A: MOVE T1,CASSPS ;OUTPUT NUMBER OF CHARS TO CHANGE CASE OF
PUSHJ P,PUTNUM
MOVEI T1,[ASCIZ / SU:/]
PUSHJ P,PUTSTG
MOVE T1,SUBCNT ;OUTPUT NUMBER OF SUBSTITUTES TO DO
PUSHJ P,PUTNUM
HLRZ T1,ISVNUM ;GOT AN INCREMENTAL SAVE?
JUMPN T1,SWHST3 ;NO
MOVEI T1,[ASCIZ / ISV:/]
PUSHJ P,PUTSTG
MOVE T1,ISVNUM
PUSHJ P,PUTNUM
SWHST3: HLRZ T1,SAVNUM ;GOT AN INCREMENTAL TYPEIN SAVE?
JUMPN T1,SWHST4 ;NO
MOVEI T1,[ASCIZ / SV:/]
PUSHJ P,PUTSTG
MOVE T1,SAVNUM
PUSHJ P,PUTNUM
SWHST4: SKIPG LMARGN ;GOT A CHANGED LEFT MARGIN?
JRST SWHST5 ;NO
MOVEI T1,[ASCIZ / LM:/]
PUSHJ P,PUTSTG
MOVE T1,LMARGN
PUSHJ P,PUTNPO
SWHST5: MOVE T1,RMARGN ;GOT A RIGHT MARGIN WITHIN THE SCREEN?
CAML T1,CPL.1
JRST SWHST6 ;NO
MOVEI T1,[ASCIZ / RM:/]
PUSHJ P,PUTSTG
MOVE T1,RMARGN
PUSHJ P,PUTNPO
SWHST6: MOVEI T1,[ASCIZ / TB:/]
PUSHJ P,PUTSTG ;OUTPUT SIZE OF TAB
TRNE F,WTB ;GOT WORD-WISE TABS?
JRST SWHS6W ;YES - CALL THEM SIZE "W" (RETURN TO SWHST7)
TLNE TM,STB ;GOT SETTABLE TABS?
JRST SWHS6S ;YES - CALL THEM SIZE "S" (RETURN TO SWHST7)
MOVE T1,TABLEN ;NO - OUTPUT SIZE OF TAB
PUSHJ P,PUTNUM
SWHST7: SKIPN SRCKEY ;GOT A SEARCH KEY?
JRST SWHST8 ;NO
MOVEI T1,[ASCIZ / KEY:/]
PUSHJ P,PUTSTG
MOVEI T1,SRCKEY
PUSHJ P,PUTSTC
SWHST8: SKIPN SUBSTG ;GOT A SUBSTITUTE STRING?
JRST SWHNPE ;NO
MOVEI T1,[ASCIZ / RPL:/]
PUSHJ P,PUTSTG
MOVEI T1,SUBSTG
PUSHJ P,PUTSTC
JRST SWHNPE ;FINISH OFF
SWHS6W: SKIPA T1,["W"] ;CALL WORD-WISE TABS SIZE "W"
SWHS6S: MOVEI T1,"S" ;CALL SETTABLE TABS SIZE "S"
IDPB T1,TY
JRST SWHST7
;SWITCH HANDLING SUBROUTINES. THERE BE:
;SWHMNY - HANDLES A STRING OF SWITCHES. PT POINTS TO START OF FIRST ONE
;SWHONE - HANDLES A SINGLE SWITCH IN PARBUF
;MANY SWITCHES: FIND CHARACTER AFTER NEXT SWITCH; SAVE IT; REPLACE IT
; WITH A NULL; CALL SWHONE; LOOP
;SWITCHES END WITH A RETURN OR A NULL
;CALL WITH PT POINTING AFTER THE "/" OF THE FIRST SWITCH
;FOR NON-EXECUTE SWITCHES, ^ANYTHING IS A REAL ANYTHING, AND THE UP-ARROW
;IS IGNORED (USEFUL FOR ^/ AND ^^).
SWHMNY::MOVEM PT,SAVEAC+4 ;SAVE THE POINTER TO THE START OF THE SWITCH
SWHMN1: ILDB T1,PT ;GET FIRST SWITCH CHARACTER
CAIE T1,"X" ;EXECUTE SWITCH?
CAIN T1,"x"
JRST SWHMNX ;YES - SPECIAL CASE
PUSHJ P,SWHNUL ;NO - FIND, SAVE, AND NULL CHAR. AFTER THE SWH
PUSHJ P,SWHONE ;NO - PROCESS THE SWITCH
SWHMN2: MOVE PT,SAVEAC+4 ;POINT TO THE START OF THE NEXT ONE
SKIPN SAVEAC+5 ;GOT MORE SWITCHES?
POPJ P, ;NO - DONE
JRST SWHMN1 ;YES - LOOP TO PROCESS THEM
SWHMN3: JUMPN T1,SWHMN1 ;JUMP IF GOT MORE SWITCHES
POPJ P, ;ELSE DONE
;SUBROUTINE TO FIND THE FIRST CHARACTER OF THE NEXT SWITCH,
;SAVE IT AND ITS POINTER IN SAVEAC+5 AND +4, AND CHANGE IT TO A NULL
SWHNUL: ILDB T1,PT ;GET THE NEXT CHARACTER
CAIN T1,"^" ;WANT TO FORCE THE NEXT CHARACTER?
JRST [ILDB T1,PT ;YES - SKIP OVER IT
JRST SWHNUL] ;AND GET THE NEXT ONE
CAIL T1,"0" ;IS THE CHARACTER INTERESTING?
JRST SWHNUL ;NO - JUST SKIP OVER IT
JUMPE T1,SWHNL1 ;YES - DONE IF NULL
CAIN T1,15 ;END OF A LINE?
JRST SWHMNS ;YES - SKIP TO LINEFEED AND RETURN
CAIE T1,"/" ;START OF ANOTHER SWITCH?
CAIN T1,"+"
TDZA T0,T0 ;YES - GET A NULL AND SKIP
JRST SWHNUL ;NO - KEEP SKIPPING
DPB T0,PT ;NULL OUT THE CHARACTER
SWHNL1: EXCH PT,SAVEAC+4 ;SAVE PTR TO NEXT SWITCH; GET PTR TO THIS ONE
MOVEM T1,SAVEAC+5 ;SAVE THE CHARACTER
POPJ P, ;DONE
SWHMNS: SETZ T1, ;NULL OUT THE CARRIAGE RETURN
DPB T1,PT
SWHMS1: ILDB T0,PT ;SKIP UNTIL NULL OR LINEFEED
JUMPE T0,SWHNL1 ;IF NULL, SAVE POINTERS AND FINISH
CAIN T0,12 ;LINEFEED?
JRST SWHNL1 ;YES - FINISH OFF
JRST SWHMS1 ;ELSE KEEP LOOKING
;HERE TO HANDLE THE EXECUTE SWITCH SEPARATELY
SWHMNX: MOVE T3,[POINT 7,PARBUF]
IDPB T1,T3 ;SAVE THE "X"
ILDB T1,PT ;SKIP THE COLON AFTER THE "X"
CAIE T1,":" ; (IF THERE IS ONE)
JRST SWMXL2
JRST SWMXL1
SWHMXL: IDPB T1,T3
SWMXL1: ILDB T1,PT ;SAVE BUFFER NAME IN PARM BUFFER
SWMXL2: JUMPE T1,SWHMN3 ;NULL - IGNORE THIS BAD FORMAT
CAIN T1,15 ;START OF ANOTHER SWITCH?
JRST SWHMN3 ;YES - IGNORE THIS BAD FORMAT
CAIN T1,"," ;START OF KEYSTROKE SEQUENCE?
JRST SWHMX0 ;YES - SET FLAG FOR IT
CAIE T1,":" ;START OF CONTENTS?
JRST SWHMXL ;NO - KEEP GOING
TDZA T1,T1 ;CLEAR T1 - NO KEYSTROKE COMING
SWHMX0: MOVSI T1,-1 ;T1/-1,,0 - KEYSTROKE COMING
MOVEM T1,SAVEAC+3 ;SAVE KEYSTROKE FLAG
TLO F,FLG ;SET TO GET A RETURN FROM XCT ROUTINES
IDPB T1,T3 ;END PARM BUFFER WITH A NULL
MOVEM PT,SAVEAC+4 ;SAVE POINTER
PUSHJ P,XCTSET ;SET UP THAT BUFFER
MOVE PT,SAVEAC+4 ;RESTORE POINTER
SKIPE SAVEAC+3 ;NOW GOT A KEYSTROKE SEQUENCE?
PUSHJ P,SWHMXK ;YES - GET KEYSTROKE, TOO
;FIND END OF SWITCH. SAVE IT AND REPLACE IT WITH A NULL.
MOVEM PT,SAVEAC+4 ;SAVE POINTER TO START OF SEQUENCE
SWHMX1: ILDB T1,PT ;GET THE NEXT CHARACTER
CAIN T1,"/" ;START OF A NEW SWITCH?
JRST SWHMX2 ;YES - SET UP CONTENTS
SWMX1A: JUMPE T1,SWMX1E ;NULL - TREAT LIKE END OF LINE
CAIN T1,15 ;END OF LINE?
JRST SWMX1E ;YES - SEE IF END OF BUFFER
CAIE T1,"^" ;NO - SPECIAL FLAG?
JRST SWHMX1 ;NO - CONTINUE
ILDB T1,PT ;YES - GET NEXT CHARACTER
CAIE T1,"/" ;IS IT A REAL SLASH?
JRST SWMX1A ;NO - JUST PROCESS NORMALLY
DPB T1,T3 ;YES - SAVE OVER THE UP-ARROW
JRST SWHMX1 ;AND THEN CONTINUE
SWMX1E: ILDB T1,PT ;END OF A LINE - GET THE LINEFEED
MOVE T0,PT ;SAVE THE CURRENT POINTER
CAIN T1,12 ;IS IT REALLY A LINEFEED?
ILDB T1,PT ;YES - GET FIRST CHARACTER OF NEXT LINE
CAIN T1,11 ;IS IT A TAB?
JRST SWHMX1 ;YES - IGNORE CRLF AND TAB AND CONTINUE
MOVE PT,T0 ;NO - END OF THIS DEFINITION - GET POINTER BACK
SETZ T1, ;SAVE A NULL AS THE TERMINATOR
SWHMX2: MOVEM T1,SAVEAC+5 ;SAVE TERMINATING CHARACTER
SETZ T1, ;COVER THE TERMINATOR WITH A NULL
DPB T1,PT
SWHMX3: EXCH PT,SAVEAC+4 ;SAVE PTR TO END OF SWITCH; GET PTR TO START
TLO F,FLG ;SET FLAG TO GET A RETURN
PUSHJ P,XCWRT0 ;WRITE THE BUFFER
JRST SWHMN2 ;FINISH OFF OR PROCESS NEXT SWITCH
;HERE TO READ AND SAVE THE EXECUTE KEY SEQUENCE
SWHMXK: MOVEI T4,XCTKEY(T1) ;GET POINTER TO PLACE TO STORE SEQUENCE
HRLI T4,440700 ;(INDEPENDENT OF T1)
MOVEM T4,SAVEAC+5 ;SAVE POINTER FOR LATER
SETZM XCTKEY(T1) ;CLEAR PREVIOUS KEYSTROKE (IF ANY)
TRO T1,200000 ;SET EXECUTE COMMAND FLAG
MOVEM T1,SAVEAC+6 ;SAVE EXECUTE BUFFER INDEX
SWMXK1: ILDB T0,PT ;GET CHARACTER OF SEQUENCE
CAIN T0,":" ;START OF CONTENTS?
JRST SWMXK2 ;YES - SEE IF COMMAND IS LEGAL
JUMPE T0,SWHMN3 ;NULL - IGNORE THIS BAD FORMAT
CAIN T0,15 ;START OF ANOTHER SWITCH?
JRST SWHMN3 ;YES - IGNORE THIS BAD FORMAT
CAIN T0,"^" ;CONTROL CHARACTER IN SEQUENCE?
PUSHJ P,SWMXKC ;YES - FIND WHICH CHARACTER IT SHOULD BE
TLNE T4,760000 ;ALREADY GOT 5 CHARACTERS?
IDPB T0,T4 ;NO - SAVE CHARACTER
JRST SWMXK1 ;AND GET ANOTHER
;SUBROUTINE TO READ THE CHARACTER AFTER AN "^". IT'S EITHER A CONTROL
;CHARACTER, A RUBOUT, OR A REAL "^" OR ":"
SWMXKC: ILDB T0,PT ;GET THE NEXT CHARACTER
CAIN T0,"?" ;WANT A RUBOUT?
JRST SWMXC1 ;YES - SET IT UP
CAIN T0,"=" ;WANT A REAL UP-ARROW?
JRST SWMXC2 ;YES (NOTE: ^^ IS A CONTROL CHARACTER)
CAIE T0,":" ;WANT A REAL COLON?
ANDI T0,37 ;NO - MAKE THE CHARACTER A CONTROL CHARACTER
POPJ P, ;DONE
SWMXC1: TROA T0,177 ;MAKE ^? BE A RUBOUT
SWMXC2: MOVEI T0,"^" ;MAKE ^= BE A REAL UP-ARROW
POPJ P, ;DONE
;HERE WHEN COMMAND DEFINITION IS COMPLETE. NOW SEE IF IT'S LEGAL
SWMXK2: SKIPE STTFLG ;INITIALIZING?
POPJ P, ;YES - DON'T CHANGE TABLE NOW
MOVE T2,SAVEAC+5 ;NO - GET POINTER TO SEQUENCE
;FALL TO CHANGE TABLE AND RETURN
;SUBROUTINE TO CHANGE INPUT TABLE - SET UP OR CLEAR EXECUTE COMMAND
;ENTER WITH EXECUTE INDEX IN SAVEAC+6, POINTER TO EXECUTE SEQUENCE IN T2
;INDEX SHOULD HAVE THE 200000 BIT SET
;IF INDEX IS -1, EDITOR COMMAND IS RESTORED IN TABLE
SUBTBX::MOVEM T2,SAVEAC+7 ;SAVE THE POINTER TO THE SEQUENCE
ILDB T4,T2 ;GET FIRST CHARACTER
CAIN T4,177 ;RUBOUT?
SETO T4, ;YES - USE -1 AS OFFSET
ADD T4,ITB(TM) ;GET OFFSET IN TERMINAL TABLE
MOVE T1,T4 ;REMEMBER TABLE ADDRESS
SKIPGE T4,(T4) ;IS IT A NORMAL COMMAND?
JRST SUBTAS ;NO - GO LOOK IN SUBTABLE
ILDB T0,T2 ;YES - GET NEXT COMMAND CHARACTER
SKIPGE T2,SAVEAC+6 ;GET EXECUTE INDEX - NEGATIVE?
JRST SUBTX1 ;YES - GO RESTORE OLD COMMAND
TRNE T4,200000 ;WAS SEQUENCE ALREADY SET UP AS AN EXECUTE?
AOJA T4,SUBTX0 ;YES - BUMP COUNTER AND SAVE
CAIE T0,0 ;IS EXECUTE SEQUENCE 1 CHARACTER LONG?
MOVEI T2,300000 ;NO - SET FLAG FOR MORE INPUT & ZERO COUNTER
DPB T4,[POINT 9,T2,29]
MOVEM T2,(T1) ;NO - SAVE EXECUTE CALL NOW
;NOW CONVERT ALL LOWER CASE CHARACTERS IN THE SEQUENCE TO UPPER CASE
SUBTBR: SKIPGE SAVEAC+6 ;REMOVING THE DEFINITION?
POPJ P, ;YES - DONE
MOVE T2,SAVEAC+7 ;NO - GET THE POINTER TO THE SEQUENCE
SUBTR1: ILDB T1,T2 ;CONVERT LOWER TO UPPER CASE - GET A CHARACTER
JUMPE T1,CPOPJ ;DONE IF NULL
CAIL T1,"a" ;ELSE IS IT LOWER CASE?
CAILE T1,"z"
JRST SUBTR1 ;NO - SKIP THIS CHARACTER
SUBI T1,40 ;YES - CONVERT TO UPPER
DPB T1,T2 ;SAVE IT BACK
JRST SUBTR1 ;AND LOOK AT THE NEXT CHARACTER
SUBTX0: MOVEM T4,(T1) ;SAVE EXECUTE CALL WITH BUMPED COUNTER
JRST SUBTBR ;DONE
SUBTX1: TRNN T4,100000 ;GOT AT LEAST TWO COMMANDS FOR THIS SEQUENCE?
JRST SUTX1A ;NO
TRNE T4,77
SOJA T4,SUTX1B ;YES - JUST DECREMENT COUNT AND SAVE
SUTX1A: TRZ T4,300000 ;GET ORIGINAL COMMAND BACK
LSH T4,-6
SUTX1B: MOVEM T4,(T1) ;SAVE IT
POPJ P, ;DONE
SUBTAS: ILDB T0,T2 ;GET NEXT USER-TYPED CHARACTER
SUBTS2: SKIPN T1,(T4) ;GET A SUBTABLE ENTRY - END?
JRST SUBTBR ;DONE
TRNN T1,-1 ;MATCH ON ANY CHARACTER?
JRST SUBTS3 ;YES - SET UP REAL COMMAND NOW
CAIE T0,(T1) ;DO USER'S AND TABLE'S CHARS MATCH?
AOBJN T4,SUBTS2 ;NO - LOOP ON THE TABLE
JUMPG T4,SUBTBR ;NOT LEGAL IF END OF TABLE AND NOT FOUND
SUBTS3: CAMLE T1,[137,,0] ;ELSE FOUND - WANT ANOTHER LEVEL?
JRST SUBTSS ;YES - SET IT UP
SBTS3A: HLR T1,(T4) ;NO - GET CURRENT POINTER
MOVE T0,SAVEAC+6 ;GET EXECUTE INDEX
JUMPL T0,SUBTS4 ;IF NONE RESTORE OLD COMMAND
TRNE T1,200000 ;WAS THIS ALREADY SET UP AS AN EXECUTE?
AOJA T1,SUBTSX ;YES - BUMP COUNTER AND SAVE
HLR T1,T1 ;ELSE SAVE OLD COMMAND WITH EXECUTE INDEX
DPB T1,[POINT 9,T0,29]
HRLM T0,(T4) ;SAVE INDEX AT END OF SUBTABLE
JRST SUBTBR ;DONE
SUBTSX: TRNE T1,100000 ;MORE THAN ONE COMMAND HERE ALREADY?
JRST SUTSX1 ;YES - JUST SAVE BUMPED COUNTER
TRO T1,300001 ;NO - THERE IS NOW (SET FLAG, CLEAR COUNTER)
TRZ T1,76
SUTSX1: HRLM T1,(T4) ;SAVE INDEX AT END OF SUBTABLE
JRST SUBTBR ;DONE
SUBTS4: TRNN T1,100000 ;GOT AT LEAST TWO COMMANDS FOR THIS SEQUENCE?
JRST SUTS4A ;NO
TRNE T1,77
SOJA T1,SUTS4B ;YES - DECREMENT COUNTER AND SAVE
SUTS4A: LSH T1,-6 ;GET ORIGINAL COMMAND BACK
TRZ T1,777000
SUTS4B: HRLM T1,(T4) ;SAVE IT IN THE SUBTABLE
POPJ P, ;DONE
SUBTSS: TLZE T1,200000 ;GOT AN EXECUTE COMMAND?
JRST SBTS3A ;YES - SET IT UP AFTER ALL
HLRZ T4,T1 ;POINT TO NEW SUBTABLE
HRLI T4,-^D40
JRST SUBTAS ;AND PICK UP ANOTHER CHARACTER
;SUBROUTINE TO SET UP ALL EXECUTE BUFFER BUTTON SEQUENCES IN THE
;TERMINAL INPUT TABLE. THIS IS DONE ON STARTUP IN CASE THE TABLE WAS
;CHANGED AFTER SWITCH.INI WAS PROCESSED, BY THE USER'S ENTRY ROUTINE
SETXCB::MOVEI DO,XBFNUM-1 ;LOOP THROUGH ALL EXECUTE BUFFERS
STXCB1: SKIPN XCTKEY(DO) ;DOES THIS BUFFER HAVE A BUTTON?
JRST STXCB2 ;NO - SKIP IT
MOVEI T2,200000(DO) ;YES - SET UP EXECUTE INDEX AND POINTER
MOVEM T2,SAVEAC+6
ADD T2,[440677,,XCTKEY-200000]
PUSHJ P,SUBTBX ;CHANGE TABLE IF THE COMMAND IS LEGAL
STXCB2: SOJGE DO,STXCB1 ;LOOP THROUGH ALL BUFFERS
POPJ P, ;THEN DONE
;SUBROUTINE TO PARSE AND HANDLE A SINGLE SWITCH, WHICH IS IN PARAMETER BUFFER.
;ENTER WITH PT/ POINTER TO SWITCH. THE SWITCH MUST BE TERMINATED BY A NULL.
SWHONE::SETO T4, ;ASSUME SWITCH WILL BE SET
SWHON1: PUSHJ P,SWHLUR ;GET FIRST CHARACTER
SWHON2: CAIL T1,"A" ;IS IT ALPHABETIC?
CAILE T1,"Z"
JRST SWHERR ;NO - ERROR
MOVE T2,T1 ;YES - SAVE FIRST CHARACTER
PUSHJ P,SWHLUR ;GET SECOND CHARACTER
JRST @SWHADR-"A"(T2) ;AND DISPATCH TO SWITCH ROUTINE
SWHNNN: SETZ T4, ;SAY "NO" HAS BEEN TYPED
CAIN T1,"O" ;IS 2ND CHARACTER AN "O"?
JRST SWHON1 ;YES - INGORE IT
JRST SWHON2 ;NO - DISPATCH ON IT
;SUBROUTINE TO READ THE NEXT SWITCH CHARACTER. DOESN'T RAISE CASE
;AND DOESN'T SKIP SPACES AND TABS.
SWHLRX: ILDB T1,PT ;GET THE NEXT CHARACTER
JRST SWHLR1 ;CHECK THE USUAL THINGS AND RETURN
;SUBROUTINE TO READ THE NEXT SWITCH CHARACTER. CONVERTS LOWER TO UPPER CASE
SWHLUR::ILDB T1,PT ;GET THE NEXT CHARACTER
CAIE T1,11 ;IS IT A TAB,
CAIN T1," " ; OR A SPACE?
JRST SWHLUR ;YES - IGNORE IT
CAIL T1,"a" ;LOWER CASE?
SUBI T1,40 ;YES - CONVERT TO UPPER
SWHLR1: CAIN T1,"^" ;WANT TO FORCE THE NEXT CHARACTER?
ILDB T1,PT ;YES - GET IT
POPJ P, ;RETURN
;ROUTINES TO HANDLE EACH SWITCH
;2ND SWITCH CHARACTER IS IN T1; POPJ WHEN DONE
SWHAAA: CAIN T1,"G" ;AGAIN SWITCH?
JRST SWHAGN ;YES - HANDLE IT
CAIN T1,"P" ;APPEND SWITCH?
JRST SWHAPP ;YES - HANDLE IT
CAIE T1,"L" ;ALTERNATE FILE SWITCH?
JRST SWAERR ;NO - IT'S AMBIGUOUS
CAIE DO,$SETFI ;DOING A SET-FILE,
CAIN DO,$SWTCH ; OR A SWITCH COMMAND?
JRST SALERR ;YES - SWITCH IS ILLEGAL, THEN
MOVEI T1,SPCSIZ-1
MOVE T0,FILSPC(T1) ;NO - SWAP CURRENT AND ALTERNATE FILESPECS
EXCH T0,OLDSPC(T1)
MOVEM T0,FILSPC(T1)
SOJGE T1,.-3
JRST SWHAN1 ;IF THERE'S AN ARGUMENT, SET IT UP
SWHAGN: SKIPE CRRFLG ;HAS THE RCUR FLAG BEEN GIVEN?
JRST SWMERR ;YES - CAN'T MIX RCUR AND AGAIN
SETOM AGNFLG ;SET THE AGAIN FLAG TO SET TO SAME FILE TWICE
SWHAN1: PUSHJ P,SWHAG0 ;READ ARGUMENT, IF ANY
POPJ P, ;NO ARG - JUST RETURN
JRST SWHPC1 ;ARGUMENT - SET UP PERCENT-GOTO
SWHAPP: CAIE T4,0 ;WANT TO APPEND?
MOVE T4,[POINT 7,PIKBUF] ;YES - RESET THE APPEND POINTER
MOVEM T4,APPFLG ;SAVE 0 OR APPEND POINTER
POPJ P,
SWHUPP: MOVEM T4,UPPFLG ;SAVE UPPER-LOWER CASE FLAG
POPJ P,
SWHCCC: CAIN T1,"R" ;ALWAYS-CREATE SWITCH?
JRST SWHCRE ;YES - HANDLE IT
CAIE T1,"A" ;AFFECT CASE-DEPENDENCY OF SEARCHING?
JRST SWAERR ;NO - IT'S AMBIGUOUS
CAIGE T4,0 ;YES - MAKE SEARCHES CASE-DEPENDENT?
TRZA F,NLC ;YES
TRO F,NLC ;NO
POPJ P,
SWHCRE: MOVEM T4,CREFLG ;SAVE ALWAYS-CREATE-FILE FLAG
POPJ P,
SWHSSS: CAIN T1,"L" ;SLIDE SWITCH?
JRST SWHSLD ;YES - HANDLE IT
CAIN T1,"H" ;SHOW EXECUTE SWITCH?
JRST SWHSHW ;YES - HANDLE IT
CAIN T1,"A" ;SAVE SWITCH?
JRST SWHSAV ;YES - HANDLE IT
CAIN T1,"C" ;SCROLL-ON-CURSOR-MOVE SWITCH?
JRST SWHSCR ;YES - HANDLE IT
CAIE T1,"T" ;STRIP LINE NUMBERS SWITCH?
JRST SWAERR ;NO - IT'S AMBIGUOUS
MOVEM T4,STRFLG ;YES - SAVE STRIP FLAG
POPJ P,
SWHSHW: MOVEM T4,XSHFLG ;SAVE SHOW FLAG
POPJ P,
SWHSCR: MOVEM T4,RLCFLG ;SAVE SCROLL-ON-CURSOR-MOVE FLAG
POPJ P,
SWHSLD: JUMPE T4,SWHSL2 ;IF /NOSLIDE DISABLE SLIDING (IGNORE ARG)
PUSHJ P,SWHAG0 ;ELSE SEE IF THERE'S AN ARGUMENT
JRST SWHSL2 ;NO - JUST ENABLE SLIDING
JUMPLE T3,SWHSL1 ;TREAT /SLIDE:0 LIKE /NOSLIDE
MOVEM T3,SLIDNM ;SET UP THE ARGUMENT AS THE NEW NOMINAL
MOVEM T3,SLIDES ; AND CURRENT SLIDE DISTANCES
SKIPA T4,[-1] ;ENABLE SLIDING AND RETURN
SWHSL1: SETZ T4, ;DISABLE SLIDING
SWHSL2: MOVEM T4,SLDFLG ;SAVE SLIDE FLAG
POPJ P,
SWHSAV: JUMPE T4,SWHSV1 ;JUMP IF USER SAID /NOSAVE
PUSHJ P,SWHAG0 ;ELSE READ ARGUMENT
JRST SWGERR ;NO ARG - ERROR
CAIG T3,0 ;DID USER SAY /SAVE:0?
SWHSV1: HRLO T3,P ;YES - USE A LARGE NUMBER (FOR NO SAVES)
MOVEM T3,SAVNUM ;ELSE SAVE # COMMANDS BETWEEN SAVES
MOVEM T3,SAVCNT ;SAVE AS COUNTDOWN VALUE, TOO
POPJ P,
SWHBBB: CAIN T1,"E" ;BEEP SWITCH?
JRST SWHBEP ;YES - HANDLE IT
CAIE T1,"A" ;BACKUP SWITCH?
JRST SWAERR ;NO - IT'S AMBIGUOUS
MOVEM T4,BAKFLG ;YES - SAVE BACKUP FILE FLAG
POPJ P,
SWHBEP: CAIE T4,0 ;SET BEEP-ON-INSERT-MODE FLAG?
TLOA TM,BEP ;YES
TLZ TM,BEP ;NO
POPJ P,
SWHRRR: CAIN T1,"A" ;RAISE SWITCH?
JRST SWHRAI ;YES - HANDLE IT
CAIN T1,"E" ;RESET, READ-ONLY OR RECOVER SWITCH?
JRST SWHRR1 ;YES - READ ANOTHER CHARACTER
CAIN T1,"M" ;RMAR (RIGHT MARGIN) SWITCH?
JRST SWHRMR ;YES
CAIN T1,"C" ;REPLACE-CURRENT FILE SWITCH?
JRST SWHCUR ;YES - HANDLE IT
CAIE T1,"O" ;ROLL SWITCH?
JRST SWAERR ;NO - IT'S AMBIGUOUS
CAIGE T4,0 ;ROLL IF USER TYPES RETURN ON BOTTOM LINE?
TRZA F,NRC ;NO
TRO F,NRC ;YES
POPJ P,
SWHRAI: SETCAM T4,UPCFLG ;SAVE RAISE-CASE FLAG
SETOM INVFLG ;DON'T TOGGLE; USE UPCFLG
POPJ P,
SWHCUR: SKIPE AGNFLG ;IS THE AGAIN FLAG SET?
JRST SWMERR ;YES - CAN'T MIX RCUR AND AGAIN
MOVEM T4,CRRFLG ;SAVE REPLACE-CURRENT-FILE FLAG
POPJ P,
SWHRMR: PUSHJ P,SWHAG0 ;READ NEW RMAR (RIGHT MARGIN) POSITION
JRST SWGERR ;NO ARG - ERROR
SOJ T3, ;MAKE THE VALUE ZERO-ORIGIN
CAMG T3,LMARGN ;IS IT TO THE RIGHT OF THE LEFT MARGIN?
JRST SWGERR ;NO - ERROR
MOVEM T3,RMARGN ;YES - SAVE IT
IFE TOPS10,<
IFN FTECHO,<
SWHRM1::CAML T3,CPL.1 ;OFF THE RIGHT OF THE SCREEN?
SKIPA T3,CPL.0 ;YES - SET THE FIELD WIDTH TO THE RIGHT
AOJ T3,
MOVEM T3,FLDWTH ;SAVE THE FIELD WIDTH
>>
POPJ P,
SWHRR1: PUSHJ P,SWHLUR ;GET 3RD SWITCH CHARACTER
CAIN T1,"A" ;REA == READ-ONLY?
JRST SWHRDO ;YES
IFN FTJOUR,<
CAIN T1,"C" ;REC == RECOVER JOURNAL?
JRST SWHREC ;YES
>
CAIE T1,"S" ;RES == RESET NOMINALS?
JRST SWAERR ;NO - IT'S AMBIGUOUS OR ILLEGAL
CAIE T4,0 ;SET RESET-NOMINALS FLAG?
TROA F,RST ;YES
TRZA F,RST ;NO
JRST RSTNOM ;IF YES, RESET ALL NOMINALS NOW AND RETURN
POPJ P, ;IF NO, JUST RETURN
IFE FTJOUR,<
SWHJJJ: JRST SWHJHD ;SET UP THE JUSTIFY PREFIX STRING
>
IFN FTJOUR,<
SWHREC: MOVEM T4,JRNFLG ;SAVE RECOVER-JOURNAL FLAG
POPJ P,
SWHJJJ: CAIN T1,"P" ;JUSTIFY-PREFIX SWITCH?
JRST SWHJHD ;YES - HANDLE IT
CAIE T1,"O" ;JOURNAL SWITCH?
JRST SWAERR ;NO - ERROR OR AMBIGUOUS
TLZ TM,JRW ;ASSUME NO JOURNAL
JUMPGE T4,CPOPJ ;WANT ONE AFTER ALL?
TLO TM,JRW ;YES
CAIN DO,$SWTCH ;SWITCH COMMAND OR SETTING UP A FILE?
JRST JRNSTT ;SWITCH - START THE JOURNAL FILE NOW
POPJ P, ;SETTING - JUST RETURN
>
SWHJHD: JUMPE T4,SWJHDN ;JUMP TO HANDLE /NOJHEAD
MOVE T4,[POINT 7,JUSHED]
PUSHJ P,SWHAGA ;READ THE JUSTIFY HEADER
JRST SWGERR ;NO ARG - ERROR
MOVE T4,[POINT 7,JUSHED]
SETZ T3, ;FIND LENGTH AND # CHARS IN HEADER
SWJHD1: ILDB T1,T4 ;GET A CHARACTER
JUMPE T1,SWJHD2 ;DONE IF NULL
CAIN T1,11 ;TAB?
TLO T3,7 ;YES - MOVE LENGTH TO NEXT TAB STOP
AOBJP T3,SWJHD1 ;BUMP BOTH HALVES AND LOOP
SWJHDN: SETZ T3, ;NO HEADER - CLEAR THE COUNTS
SWJHD2: MOVEM T3,JSHCNT ;SAVE THE COUNTS
POPJ P, ;DONE
SWHLLL: CAIN T1,"I" ;LINEFEED SWITCH?
JRST SWHLSD ;YES - HANDLE IT
CAIN T1,"M" ;LMAR SWITCH?
JRST SWHLMR ;YES - HANDLE IT
CAIE T1,"E" ;LENGTH SWITCH?
JRST SWAERR ;NO - IT'S AMBIGUOUS
PUSHJ P,SWHAG0 ;YES - READ ARGUMENT
JRST SWGERR ;NO ARG - ERROR
TLNE TM,WDW ;GOT TWO WINDOWS ON THE SCREEN?
JRST SWHERR ;YES - ERROR
SKIPN STTFLG ;INITIALIZING?
JRST SWHLPP ;NO - SET THE LENGTH UP NOW
HRRM T3,STTFLG ;YES - SAVE FOR LATER
POPJ P, ;DONE FOR NOW
SWHLPP::MOVEM T3,LPP(TM) ;SAVE IN TERMINAL TABLE
MOVE T1,T3
CAMGE T1,LPP.0 ;USING ALL THE LINES ON THE SCREEN?
JRST STLPP0 ;NO - PUT ERRORS ON BOTTOM LINE
MOVSI T2,SLW!NEL ;YES - RESTORE SAVED SLW AND NEL FLAGS
AND T2,SAVFLG
TLZ TM,SLW!NEL
OR TM,T2
JRST SETLPP ;GO FINISH OFF
STLPP0: TLO TM,SLW!NEL ;MAKE ERRORS GO ON BOTTOM LINE
SETLPP::HRREI T3,-1(T1) ;(ENTER WITH T1/LINES PER PAGE)
IDIVI T1,3
MOVEM T1,LINROL ;SAVE NOMINAL NUMBER OF LINES TO ROLL
TRNE F,RST ;RESTORING NOMINALS?
MOVEM T1,ROLLIN ;YES - SAVE AS CURRENT NUMBER, TOO
MOVEM T3,LPP.1 ;SAVE LINES PER PAGE - 1
MOVEM T3,LPP.2 ;SAVE BOTTOM LINE OF SCREEN
TLNE TM,NEL ;IF BOTTOM IS SCRATCH, USE NEXT LINE UP
SOS LPP.2
POPJ P,
SWHLSD: CAIGE T4,0 ;SET LINEFEED-CURSOR DOWN FLAG?
TLZA TM,LSD ;NO
TLO TM,LSD ;YES
POPJ P,
SWHLMR: PUSHJ P,SWHAG0 ;READ NEW LMAR (LEFT MARGIN) POSITION
JRST SWGERR ;NO ARG - ERROR
SOJGE T3,SWLMR1 ;MAKE THE VALUE ZERO-ORIGIN
SETZ T3, ;BUT MAP ZERO INTO ZERO
SWLMR1: EXCH T3,LMARGN ;SAVE LEFT MARGIN AND GET THE OLD SETTING
SKIPE RMARGN ;HAS THE RIGHT MARGIN BEEN SET YET?
CAMGE T3,RMARGN ;YES - IS IT TO THE LEFT OF THE RIGHT MARGIN?
POPJ P, ;YES - DONE
EXCH T3,LMARGN ;NO - PUT OLD SETTING BACK
JRST SWGERR ;AND GIVE AN ERROR
SWHOFL: MOVE T4,[POINT 7,NEWSPC]
PUSHJ P,SWHAGA ;READ THE NEW FILESPECS INTO A TEMPORARY AREA
JRST SWGERR ;NO ARG - ERROR
SETOM OUTFLG ;SAY THERE WILL BE A CHANGE OF SPECS
JUMPE DO,CPOPJ ;DON'T CHANGE NOW IF INITIALIZING
CAIN DO,$SETFI ;O.K. TO MAKE THE CHANGE NOW?
POPJ P, ;NO - WAIT UNTIL END OF SET-FILE
;ELSE FALL INTO:
;SUBROUTINE TO SET UP PARSE THE FILESPECS GIVEN IN THE /OUT: SWITCH
;Note: TOPS-20 doesn't really parse now, so user can stick himself
OUTSET::HRRZM P,OUTFLG ;NOTE THAT SPEC IS CHANGING (BY OUTFLG .GT. 0)
MOVE T4,[POINT 7,NEWSPC]
MOVE T1,[FILSPC,,SVASPC]
BLT T1,SVASPC+SPCSIZ-1 ;SAVE THE CURRENT SPECS IN CASE PARSE FAILS
MOVE T1,[NEWSPC,,FILSPC]
BLT T1,FILSPC+7 ;MOVE IN THE NEW FILSPECS
PUSHJ P,PARSEF ;PARSE THE SPECS (ERROR ON FAILURE)
SETZM OUTFLG ;SAY SPEC CHANGE IS NO LONGER WANTED
SETOM CHGSPC ;SAY SPECS HAVE CHANGED
TLZ F,SMF ;THIS FILE AND THE ALTERNATE CAN'T BE THE SAME
TRNN F,RDO ;IS FILE READ-ONLY?
TLO F,CHG ;NO - FORCE THE FILE TO BE SAVED
POPJ P, ;DONE
SWHWWW: CAIN T1,"R" ;WRITE SWITCH?
JRST SWHWRT ;YES - HANDLE IT
CAIE T1,"I" ;WIDTH SWITCH?
JRST SWAERR ;NO - IT'S AMBIGUOUS
PUSHJ P,SWHAG0 ;YES - READ ARGUMENT
JRST SWGERR ;NO ARG - ERROR
SKIPN STTFLG ;INITIALIZING?
JRST SWHWID ;NO - SET THE WIDTH UP NOW
HRLM T3,STTFLG ;YES - SAVE FOR LATER
POPJ P, ;DONE FOR NOW
SWHWID::MOVEM T3,CPL(TM) ;SWAP WITH WIDTH IN TERMINAL TABLE
SOJ T3, ;ALSO SAVE CPL - 1
MOVE T2,T3 ;PUT VALUE IN TWO PLACES
EXCH T2,CPL.1
CAMLE T2,RMARGN ;WAS RIGHT MARGIN .GE. WIDTH?
CAMGE T3,RMARGN ;NEED TO MOVE THE RIGHT MARGIN IN?
IFN TOPS10,<
MOVEM T3,RMARGN ;YES - DO SO
>
IFE TOPS10,<
IFN FTECHO,<
MOVEM T3,RMARGN ;YES - DO SO
>
IFN FTECHO,<
JRST [MOVEM T3,RMARGN ;YES - DO SO
AOJ T3,
MOVEM T3,FLDWTH ;ADJUST FIELD WIDTH, TOO
SOJA T3,.+1]
>>
MOVE T2,SAVFLG ;GET ORIGINAL TERMINAL FLAGS
TLNN T2,WRP ;DOES TERMINAL WRAP AROUND?
POPJ P, ;NO - IT STILL DOESN'T
CAMLE T3,CPL.0 ;YES - IS NEW LENGTH SHORTER THAN SCREEN?
TLOA TM,WRP ;NO - MAKE IT WRAP
TLZ TM,WRP ;YES - NO WRAP
POPJ P,
SWHRDO: SETCA T4, ;READ-ONLY - COMPLEMENT WRITE FLAG
SWHWRT: SETCAM T4,SAVEAC+11 ;STAGE THE VALUE IN CASE COMMAND IS SET-FILE
CAIN DO,$SETFI ;IS IT SET-FILE?
POPJ P, ;YES - DON'T SET THE FLAG NOW
SWHWR1: CAIE T4,0 ;SET READ-ONLY FLAG?
TRZA F,RDO ;NO
TRO F,RDO ;YES
POPJ P,
SWHDDD: CAIN T1,"C" ;DEFINE COMMAND SWITCH?
JRST SWHDCM ;YES - HANDLE IT
CAIN T1,"E" ;DELIM SWITCH?
JRST SWHDLM ;YES - HANDLE IT
CAIE T1,"T" ;DISPLAY TABS SWITCH?
JRST SWAERR ;NO - IT'S AMBIGUOUS
CAIE T4,0 ;YES - SET DISPLAY TABS FLAG?
TROA F,DTB ;YES
TRZ F,DTB ;NO
POPJ P,
SWHDLM: SETZM CHBITS ;CLEAR CHARACTER FLAGS TABLE
MOVE T1,[CHBITS,,CHBITS+1]
BLT T1,CHBITS+14
SETZM DELIM ;ASSUME DELIMITERS ARE TURNED OFF
JUMPE T4,CPOPJ ;JUMP IF /NODELIM WAS TYPED
SWDLM0: ILDB T1,PT ;LOOK FOR THE COLON: GET A CHARACTER
JUMPE T1,CPOPJ ;IF NONE TREAT SAME AS /NODELIM
CAIE T1,":" ;ELSE IS IT A COLON?
JRST SWDLM0 ;NO - KEEP LOOKING
SETOM DELIM ;YES - SAY THERE IS A DELIMITER LIST
MOVEI T4,1 ;SET TO SET THE DELIMITER FLAG
SWDLM1: ILDB T1,PT ;GET A CHARACTER OF THE STRING
JUMPE T1,CPOPJ ;DONE IF CHARACTER IS NULL
CAIN T1,"^" ;FORCING THE NEXT CHARACTER?
ILDB T1,PT ;YES - FORCE IT
IDIVI T1,^D9 ;GET WORD AND POSITION IN WORD
DPB T4,CHRTAB(T2) ;SET THE FLAG
JRST SWDLM1 ;GO GET ANOTHER CHARACTER
;MOVE KEY SEQUENCE TO TOP OF PARBUF, POINT TO EXECUTE FREE SPACE
;POINT TO START OF COMMAND NAME
;FORMAT: /DC:^[P:^EL
;PROCEDURE: SAVE KEYSTROKES SOMEWHERE. PARSE COMMAND INTO T1
;NOTE: NEED TO KEEP KEYSTROKE/COMMAND UNTIL AFTER INIT, SO THEY
; GO INTO THE RIGHT TABLE. WHERE SHOULD THEY BE KEPT?
SWHDCM: HRRZ T4,XCFPTR ;GET POINTER TO EXECUTE FREE SPACE
ADD T4,[440700,,1]
SETZM (T4) ;CLEAR PREVIOUS CONTENTS
ILDB T0,PT ;SKIP COLON AFTER THE SWITCH, IF ANY
CAIN T0,":"
SWHDC1: ILDB T0,PT ;GET CHARACTER OF SEQUENCE
CAIN T0,":" ;START OF CONTENTS?
JRST SWHDC3 ;YES - SEE IF COMMAND IS LEGAL
JUMPE T0,SDCERR ;NULL - ERROR
CAIN T0,15 ;START OF ANOTHER SWITCH?
JRST SDCERR ;YES - ERROR
CAIE T0,"^" ;NO - GOT A CONTROL CHARACTER?
JRST SWHDC2 ;NO - PROCEED
ILDB T0,PT ;YES - GET NEXT CHARACTER
CAIN T0,"?" ;RUBOUT?
TROA T0,177 ;YES - SET IT UP SPECIALLY
ANDI T0,37 ;ELSE MAKE A CONTROL CHARACTER
SWHDC2: TLNE T4,760000 ;ALREADY GOT 5 CHARACTERS?
IDPB T0,T4 ;NO - SAVE CHARACTER
JRST SWHDC1 ;AND GET ANOTHER
;HERE WHEN KEYSTROKE IS FOUND - GET COMMAND INDEX IN T3
SWHDC3: ILDB T2,PT ;GET THE (HOPEFULLY) STARTING UP-ARROW
CAIN T2,"$" ;GOT THE ENTER COMMAND?
JRST [MOVEI T3,33 ;YES - SET UP ITS INDEX
JRST SWHD4A] ;AND SKIP ALL THIS CHECKING
PUSHJ P,XCWGET ;PUT 2ND CHARACTER IN WITH THE UP-ARROW
PUSHJ P,XCWGET ;DITTO 3RD CHARACTER
CAME T2,["^RF"] ;GOT A ROLL FORWARD
CAMN T2,["^RB"] ; OR BACKWARD?
JRST SWHDC5 ;YES - NEED TO GET ANOTHER CHARACTER
LSH T2,^D15 ;NO - LEFT-JUSTIFY COMMAND NAME
SWHDC4: ILDB T1,PT ;GET NEXT CHARACTER OF COMMAND
JUMPN T1,SDCERR ;ERROR IF THERE'S ANYTHING THERE
MOVEI T3,CMDLEN-1 ;LOOK FOR COMMAND AMONG NAMES
CAME T2,CMDNAM(T3) ;IS THIS IT?
SOJGE T3,.-1 ;NO - KEEP LOOKING
JUMPL T3,SDCERR ;ERROR IF NOT FOUND
SWHD4A: MOVE PT,XCFPTR ;GET POINTER TO KEYSTROKE SEQUENCE
SKIPE STTFLG ;INITIALIZING?
JRST CMDSAV ;YES - DON'T CHANGE TABLE NOW
;ELSE FALL TO SET UP COMMAND, AND RETURN
;SUBROUTINE TO CHANGE THE COMMAND TABLE
;CALL WITH PT/ POINTER TO KEYSTROKE, T3/ NEW COMMAND
SWHDCS: ILDB T4,PT ;GET THE FIRST CHARACTER
CAIN T4,177 ;RUBOUT?
SETO T4, ;YES - USE -1 AS OFFSET
ADD T4,ITB(TM) ;GET OFFSET IN TERMINAL TABLE
MOVE T1,T4 ;REMEMBER TABLE ADDRESS
SKIPGE T4,(T4) ;IS IT A NORMAL COMMAND?
JRST SWHDC0 ;NO - GO LOOK IN SUBTABLE
ILDB T0,PT ;YES - GET NEXT CHARACTER OF SEQUENCE
;@ JUMPN T0,SDCERR ;ERROR IF SEQUENCE IS NOT 1 CHARACTER LONG
;@
JUMPN T0,CPOPJ ;IF SEQUENCE IS NOT 1 CHARACTER LONG, IGNORE IT
MOVEM T3,(T1) ;SAVE THE NEW COMMAND IN THE TABLE
POPJ P, ;DONE
SWHDC0: ILDB T0,PT ;GET NEXT USER-GIVEN CHARACTER
SWHDS1: SKIPN T1,(T4) ;GET A SUBTABLE ENTRY - END?
;@ JRST SDCERR ;YES - COMMAND IS NOT LEGAL
;@
POPJ P, ;YES - COMMAND IS NOT LEGAL - IGNORE IT
TRNN T1,-1 ;MATCH ON ANY CHARACTER?
JRST SWHDS2 ;YES - SET UP REAL COMMAND NOW
CAIE T0,(T1) ;DO USER'S AND TABLE'S CHARS MATCH?
AOBJN T4,SWHDS1 ;NO - LOOP ON THE TABLE
;@ JUMPG T4,SDCERR ;NOT LEGAL IF END OF TABLE AND NOT FOUND
;@
JUMPG T4,CPOPJ ;NOT LEGAL IF END OF TABLE & NOT FOUND - IGNORE
SWHDS2: CAMLE T1,[137,,0] ;ELSE FOUND - WANT ANOTHER LEVEL?
JRST SWHDS3 ;YES - SET IT UP
SWDS2A::HRLM T3,(T4) ;SAVE THE NEW COMMAND IN THE SUBTABLE
POPJ P, ;DONE
SWHDS3: TLZE T1,200000 ;GOT AN EXECUTE COMMAND?
JRST SWDS2A ;YES - SET IT UP AFTER ALL
HLRZ T4,T1 ;POINT TO NEW SUBTABLE
HRLI T4,-^D40
JRST SWHDC0 ;AND PICK UP ANOTHER CHARACTER
SWHDC5: PUSHJ P,XCWGET ;GET REST OF COMMAND NAME
LSH T2,^D8 ;LEFT-JUSTIFY COMMAND NAME
JRST SWHDC4 ;GO FIND THE COMMAND
;HERE WHEN INITIALIZING - STORE THE COMMAND CHANGE IN THE CLOSE BUFFER
;CALL WITH PT/ COMMAND SEQUENCE, T3/ NEW COMMAND
CMDSAV: AOS T1,CLSBUF+400 ;GET THE SAVE POINTER
MOVE T2,1(PT) ;GET THE COMMAND SEQUENCE
MOVEM T2,CLSBUF+400(T1) ;SAVE THE COMMAND SEQUENCE
MOVEM T3,CLSBUF+401(T1) ;SAVE THE NEW COMMAND
AOS CLSBUF+400 ;ADVANCE THE POINTER
POPJ P, ;DONE
;HERE AFTER INITIALIZATION, TO MAKE THE CHANGES TO THE COMMAND TABLE
CMDSET::SOSGE T1,CLSBUF+400 ;ARE THERE ANY CHANGES?
POPJ P, ;NO - JUST RETURN
MOVEI PT,CLSBUF+400(T1) ;GET THE POINTER TO THE COMMAND SEQUENCE
HRLI PT,440700
MOVE T3,CLSBUF+401(T1) ;GET THE NEW COMMAND
PUSHJ P,SWHDCS ;MAKE THE CHANGE
SOS CLSBUF+400 ;SKIP OVER BOTH PIECES OF DATA
JRST CMDSET ;LOOP THROUGH ALL THE CHANGES
;NOW ON WITH THE NORMAL SWITCHES
SWHHLP: CAIE T4,0 ;SET NO-HELP-WANTED FLAG?
TRZA F,NHP ;NO
TRO F,NHP ;YES
POPJ P,
SWHIII: CAIN T1,"D" ;I.D. SWITCH?
JRST SWHIDD ;YES - HANDLE IT
CAIN T1,"M" ;INSERT-MODE SWITCH?
JRST SWHIMD ;YES - HANDLE IT
CAIN T1,"C" ;INSERT-CR-IN-INSERT-MODE SWITCH?
JRST SWHICR ;YES - HANDLE IT
CAIN T1,"N" ;INVERT CASE SWITCH?
JRST SWHINV ;YES - HANDLE IT
CAIN T1,"T" ;INSERT TABS SWITCH?
JRST SWHINT ;YES - HANDLE IT
CAIE T1,"S" ;INCREMENTAL SAVE SWITCH?
JRST SWAERR ;NO - IT'S AMBIGUOUS
JUMPE T4,SWHII1 ;YES - JUMP IF USER SAID /NOISAVE
PUSHJ P,SWHAG0 ;ELSE READ ARGUMENT
JRST SWGERR ;NO ARG - ERROR
CAIG T3,0 ;DID USER SAY /ISAVE:0?
SWHII1: HRLO T3,P ;YES - USE -1 (FOR NO SAVES)
MOVEM T3,ISVNUM ;ELSE SAVE # COMMANDS BETWEEN ISAVES
MOVEM T3,ISVCNT ;SAVE AS COUNTDOWN VALUE, TOO
POPJ P,
SWHICR: CAIE T4,0 ;SET NO CR IN INSERT MODE FLAG?
TRZA F,NCR ;NO
TRO F,NCR ;YES
POPJ P,
SWHIMD: CAIN T4,0 ;SET INSERT-MODE?
TRZA F,IMD ;NO - CLEAR FLAG AND RETURN
IFN TOPS10,<
TRO F,IMD ;YES - SET FLAG AND RETURN
POPJ P,
>
IFE TOPS10,<
IFN FTECHO,<
TROA F,IMD ;YES - SET FLAG AND SKIP TO SET ECHOES
POPJ P,
JRST EKOALL ;SET NO ECHO; BREAK ON ALL CHARACTERS; RETURN
>
IFE FTECHO,<
TRO F,IMD ;YES - SET FLAG AND RETURN
POPJ P,
>>
SWHIDD: SETZM TAGFLG ;ASSUME THE USER WANTS /NOID
JUMPE T4,CPOPJ ;DONE IF HE DOES
SETZM TAGFLG+1
SETZM TAGFG1 ;ELSE ASSUME THERE'S NO ENDING COMMENT CHARS
MOVE T4,[POINT 7,TAGFLG]
PUSHJ P,SWHAGC ;READ THE STARTING CHARACTER(S)
JRST SWHIDS ;NO ARG - USE A SEMICOLON; DONE
JUMPE T1,CPOPJ ;DONE IF NO ENDING CHARACTER(S)
MOVE T4,[POINT 7,TAGFG1]
JRST SWHGC1 ;ELSE READ THE ENDING CHARACTER(S) AND RETURN
SWHIDS: MOVSI T1,(ASCII /;/) ;NO ARG - DEFAULT TO A COLON
MOVEM T1,TAGFLG
POPJ P, ;DONE
SWHINV: SETCAM T4,INVFLG ;SAVE SETTING OF INVERT-CASE SWITCH
POPJ P,
SWHINT: SETCAM T4,INSTBS ;SAVE SETTING OF INSERT-TABS SWITCH
POPJ P,
;this turns it off; need to turn it back on
SWHMMM: JUMPL T4,CPOPJ ;DO NOTHING IF TURNING MESSAGE BACK ON
MOVE T1,[BYTE (7) 15,12]
IFN TOPS10,<
MOVEM T1,NEWMSG ;ELIMINATE THE NEW-FILE MESSAGE
HRROS NEWCCL ;CHANGE THE CHANNEL COMMAND TO BE ONE WORD
>
IFE TOPS10,<
SETZM NEWMSG
>
SETZM NEWMSG+1 ;CLEAR THIS WORD AS A FLAG
TRNE F,GFL ;GOT A FILE TO EDIT?
POPJ P, ;YES - THE CHEERY MESSAGE NO LONGER EXISTS
MOVEM T1,BUFFER ;NO - ELIMINATE THE CHEERY MESSAGE
MOVE EN,[010700,,BUFFER]
SETZM BUFFER+1
MOVE T1,[BUFFER+1,,BUFFER+2]
BLT T1,BUFFEN
POPJ P, ;DONE
SWHTTT: JUMPE T1,SWHTB0 ;MAKE "/T" DEFAULT TO /TABS
CAIE T1,":" ;DITTO
CAIN T1,"A" ;AND /TA IS /TABS, TOO
JRST SWHTB0
CAIN T1,"R" ;/TRAIL FLAG?
JRST SWHTRL ;YES - HANDLE IT
CAIE T1,"S" ;TAB-SET?
JRST SWAERR ;NO - IT'S AMBIGUOUS
PUSHJ P,SWHAG0 ;TAB-SET - READ THE DECIMAL TAB POSITION
JRST SWGERR ;NO ARG - ERROR
TLO TM,STB ;TURN ON SETTABLE TABS
SWHTT0: SOS T2,T3 ;MAKE THE COLUMN ZERO-BASED
IDIVI T2,^D36 ;GET WORD AND POSITION IN WORD
MOVN T3,T3 ;NEGATE POSITION
MOVSI T0,400000 ;GET BIT FOR SHIFTING
LSH T0,(T3) ;SHIFT RIGHT TO THE RIGHT POSITION
JUMPE T4,SWHTT1 ;JUMP IF WANT TO CLEAR THE BIT
ORM T0,TABTBL(T2) ;SET THAT BIT
JRST SWHTT2 ;CONTINUE
SWHTT1: ANDCAM T0,TABTBL(T2) ;CLEAR THAT BIT
SWHTT2: JUMPE T1,CPOPJ ;RETURN IF THERE'S NO MORE
PUSHJ P,SWHAG2 ;ELSE READ THE NEXT VALUE
JRST SWHTT0 ;AND LOOP TO SET IT
SWHTB0: JUMPE T4,SWHTBW ;IF NOTABS, SET UP WORDWISE TABS
JUMPE T1,SWHTNW ;IF IF JUST "/T" SET UP NORMAL TABS
SWHTAB: CAIN T1,":" ;ELSE SKIP UNTIL THE COLON IS FOUND
JRST SWHTA1 ;GOT IT - PROCEED
ILDB T1,PT ;GET THE NEXT CHARACTER
JUMPN T1,SWHTAB ;MAYBE THIS IS THE COLON
JRST SWHTNW ;IF NO ARG, SET UP NORMAL TABS
SWHTA1: MOVE T0,PT ;SAVE POINTER TO START OF ARGUMENT
PUSHJ P,SWHLUR ;ELSE GET THE 1ST ARGUMENT CHARACTER
CAIN T1,"W" ;WANT WORDWISE TABS?
JRST SWHTBW ;YES - GO SET THEM
CAIE T1,"S" ;WANT "SETTABLE" TABS (FOR COMPATIBILITY)?
CAIN T1,"R" ;WANT REGULAR TABS?
JRST SWHTNW ;YES - GO SET THEM
MOVE PT,T0 ;NO - POINT TO THE ARGUMENT AGAIN
PUSHJ P,SWHAG1 ;READ THE REST OF THE NUMERIC ARGUMENT
JRST SWHTNW ;NO ARG - SET UP NORMAL TABS
MOVEM T3,TABLEN ;SAVE ARG AS LENGTH OF A TAB
PUSHJ P,TABINI ;INITIALIZE THE TAB TABLE
TLZ TM,STB ;MAKE SURE SETTABLE TAB FLAG IS OFF
SWHTNW: TRZA F,WTB ;CLEAR WORDWISE TAB FLAG
SWHTBW: TRO F,WTB ;SET WORDWISE TAB FLAG
POPJ P, ;DONE
SWHTRL: MOVEM T4,TRLFLG ;SAVE PRESERVE-TRAILING-SPACES FLAG
POPJ P, ;DONE
SWHGGG: JUMPE T1,SWHPRC ;TREAT A LONE "G" AS GOTO
CAIE T1,"O" ;WANT THE GOTO SWITCH,
CAIN T1,":" ; OR GOT JUST "G:"?
JRST SWHPRC ;YES - HANDLE IT
CAIE T1,"R" ;GLOBAL-READ-ONLY SWITCH?
JRST SWAERR ;NO - IT'S AMBIGUOUS
MOVEM T4,GREFLG ;YES - SAVE THE DEFAULT-READ-ONLY FLAG
JRST SWHRDO ;SET OR CLEAR READ-ONLY FLAG AND RETURN
SWHPRC: PUSHJ P,SWHARG ;GET PERCENTAGE TO GO TO
SKIPA T3,GOPERC ;IF NO ARG USE CURRENT PERCENT
SWHPC1: CAIGE T3,0 ;GOT A NEGATIVE PERCENTAGE?
MOVEI T3,^D100 ;YES - TREAT AS 100%
CAILE T3,^D100 ;IS THE VALUE TOO BUG?
JRST SWGERR ;YES - ERROR
MOVEM T3,GOPRCT ;O.K. - SAVE STARTING PERCENT VALUE
POPJ P,
SWHPPP: CAIN T1,"A" ;PAGE-AND-LINE STATUS SWITCH?
JRST SWHPAG ;YES - HANDLE IT
CAIN T1,"I" ;PARAGRAPH INDENT SWITCH?
JRST SWHPAR ;YES - HANDLE IT
CAIE T1,"R" ;PROG TO RUN ON EXIT SWITCH?
JRST SWAERR ;NO - IT'S AMBIGUOUS
IFN TOPS10,<
PUSHJ P,SWHGS0 ;READ NAME OF SYSTEM CUSP TO RUN IN SIXBIT
JRST SWGERR ;NO ARG - ERROR
MOVEM T3,GOBLK+1 ;SAVE IN RUN BLOCK
>
IFE TOPS10,<
MOVE T4,[POINT 7,GOBLK]
PUSHJ P,SWHAGA ;READ NAME OF CUSP TO RUN IN ASCII
JRST SWGERR ;NO ARG - ERROR
>
POPJ P, ;THAT'S ALL
SWHPAG: MOVEM T4,PAGFLG ;SAVE PAGE/LINES FLAG
POPJ P,
SWHPAR: PUSHJ P,SWHAG0 ;READ AMOUNT TO INDENT A PARAGRAPH
SETZ T3, ;NO ARG - SET NO INDENT
MOVEM T3,PARIND ;SAVE THE VALUE
POPJ P, ;DONE
SWHEEE: ;HERE FOR EXT SWITCH - LIST OF DEFAULT EXT'S
IFN TOPS10,<
HLLZS EXTTBL ;CLEAN OUT THE EXTENSION TABLE
SETZM EXTTBL+1
MOVE T1,[EXTTBL+1,,EXTTBL+2]
BLT T1,EXTTBL+5
MOVSI T0,-^D10 ;SET UP COUNTER INTO EXTENSION TABLE
MOVE T4,[POINT 18,EXTTBL,17]
MOVEM T4,SAVEAC+10 ;AND POINTER INTO SAME
PUSHJ P,SWHSC0 ;READ THE FIRST EXTENSION IN SIXBIT
JRST SWGERR ;NO ARG - ERROR
JRST SWHEE2 ;JUMP INTO THE LOOP
SWHEE1: AOBJP T0,CPOPJ ;POINT TO THE PLACE TO STORE THE NEXT EXT'N
PUSHJ P,SWHSC1 ;READ THE NEXT EXTENSION
SWHEE2: HLRZ T3,T3 ;PUT THE EXTENSION IN THE RH
IDPB T3,SAVEAC+10 ;SAVE IT IN THE TABLE
JUMPN T1,SWHEE1 ;IF NOT END OF LIST, LOOP TO GET NEXT ONE
POPJ P, ;ELSE DONE
>
IFE TOPS10,<
SETZM EXTTBL+1 ;CLEAN OUT THE EXTENSION TABLE
MOVE T1,[EXTTBL+1,,EXTTBL+2]
BLT T1,EXTTBL+11
MOVSI T3,-^D10 ;SET UP COUNTER INTO EXTENSION TABLE
MOVE T4,[POINT 7,EXTTBL+1(T3)]
PUSHJ P,SWHAGC ;READ THE FIRST EXTENSION
JRST SWGERR ;NO ARG - ERROR
JRST SWHEE2 ;JUMP INTO THE LOOP
SWHEE1: AOBJP T3,CPOPJ ;POINT TO THE PLACE TO STORE THE NEXT EXT'N
MOVE T4,[POINT 7,EXTTBL+1(T3)]
PUSHJ P,SWHGC1 ;READ THE NEXT EXTENSION
SWHEE2: JUMPN T1,SWHEE1 ;IF NOT END OF LIST, LOOP TO GET NEXT ONE
POPJ P, ;THAT'S ALL
>
SWHQQQ: MOVEM T4,DSPFLG ;SAVE DISPLAY-ON-SETFIL FLAG
POPJ P,
SWHTRM: PUSHJ P,SWHAGS ;READ NAME OF TERMINAL TO USE
JRST SWGERR ;NO ARG - ERROR
MOVEM T3,TRMNAM ;SAVE TERMINAL NAME
POPJ P, ;THAT'S ALL
SWHFFF: JUMPE T1,SWAERR ;JUST "F" IS AMBIGUOUS
CAIN T1,"E" ;FENCE SWITCH?
JRST SWHFNC ;YES - HANDLE IT
CAIE T1,"I" ;JUSTIFY-FILL SWITCH?
JRST SWHSTT ;NO - GO HANDLE THE FILE SWITCHES
MOVEM T4,FLLFLG ;YES - SET THE FILL FLAG
POPJ P, ;DONE
SWHFNC: DMOVE T1,[ASCIZ / *FENCE* /] ;ASSUME SHORT FENCE IS WANTED
JUMPE T4,SWHFC1 ;REALLY WANT TO SET THE LONG FENCE?
DMOVE T1,[ASCII / *** Thi/] ;OF COURSE - SET IT BACK UP
SWHFC1: DMOVEM T1,FENCE
POPJ P, ;DONE
;HERE FOR VARIOUS FILE STATUS SWITCHES: FC, FR, FS, FD, FO
;IF THESE ARE USED, /FD MUST APPEAR AND BE FIRST
SWHSTT: MOVE T2,T1 ;SAVE FLAVOR OF SWITCH
PUSHJ P,SWHAG0 ;READ ITS ARGUMENT
JRST SWGERR ;NO ARG - ERROR
CAIN T2,"C" ;FC (COLUMN POSITION) SWITCH?
JRST SWHSTC ;YES - GO DO IT
CAIN T2,"R" ;FR (ROW POSITION) SWITCH?
JRST SWHSTR ;YES - GO DO IT
CAIN T2,"S" ;FS (SLIDE OFFSET) SWITCH?
JRST SWHSTL ;YES - GO DO IT
CAIN T2,"D" ;FD (DISPLAY POINTER) SWITCH?
JRST SWHSTD ;YES - GO DO IT
CAIN T2,"O" ;FO (ONE-SHOT) SWITCH?
JRST SWHOSH ;YES - GO DO IT
JRST SWHERR ;ANYTHING ELSE IS AN ERROR
SWHSTC: HRLM T3,PRERW ;SET UP COLUMN POSITION
POPJ P,
SWHSTR: HRRM T3,PRERW ;SET UP ROW POSITION
POPJ P,
SWHSTL: MOVEM T3,PRESL ;SET UP SLIDE OFFSET
POPJ P,
SWHOSH: MOVEM T3,PREONE ;SET UP ONE-SHOT POINTER
POPJ P,
SWHSTD: SETZM PRERW ;CLEAR THE OTHER POINTERS
SETZM PRESL
IDIVI T3,5 ;SEPARATE INTO WORD, POSITION IN WORD
ADDI T3,BUFFER ;MAKE POINTER RELATIVE TO START OF BUFFER
JUMPE T4,SWHSD1 ;HANDLE POINTING TO START OF WORD SPECIALLY
HRL T3,PTRTBL(T4) ;MAKE IT POINT AT THE RIGHT BIGHT
SWHSD0: MOVEM T3,PREDP ;SAVE POINTER IN THE RYTE PLACE
POPJ P, ;DONE
SWHSD1: HRLI T3,010700
SOJA T3,SWHSD0
;THE ONE-SHOT ARGUMENT IS THE CHARACTER IN THE FILE WHICH THE CURSOR SHOULD
;POINT TO. IT WILL BE SET UP 1/3 DOWN THE SCREEN. SO NEED TO CALCULATE
;CHRPTR, LINPTR, DISPTR, RW, CM, AND SL
;SWHOSH: IDIVI T3,5 ;SEPARATE INTO WORD, POSITION IN WORD
; ADDI T3,BUFFER ;MAKE POINTER RELATIVE TO START OF BUFFER
; HRL T3,PTRTBL(T4) ;MAKE IT POINT AT THE RIGHT BYTE
; MOVE PT,T3 ;SAVE POINTER IN THE RIGHT PLACE
; JRST SRCSET ;SET EVERYTHING UP AND RETURN
;SUBROUTINE TO READ COLON (MAYBE) AND NUMERIC ARGUMENT OF A SWITCH
;RETURNS T3/ VALUE, T1/ DELIMITER (0 OR ",")
;GIVES SKIP RETURN IF VALUE FOUND, NON-SKIP IF NO COLON FOUND
;TO READ THE 2ND AND FURTHER VALUES, ENTER AT SWHAG2
SWHAG0: ILDB T1,PT ;GET THE NEXT CHARACTER
SWHARG: CAIE T1,":" ;GOT A COLON?
JUMPN T1,SWHAG0 ;NO - TRY NEXT ONE, IF ANY
SWHAG1: JUMPE T1,CPOPJ ;NO COLON - NON-SKIP RETURN
AOS (P) ;GOT THE COLON - GIVE SKIP RETURN
SWHAG2: SETZB T3,T0 ;CLEAR TARGET AND NEGATIVE FLAG
PUSHJ P,SWHLUR ;GET FIRST DIGIT OR DASH
CAIN T1,"-" ;WANT TO NEGATE THE RESULT?
TDOA T0,[-1] ;YES - REMEMBER THAT FACT
CAIA ;NO - SKIP TO TREAT CHAR AS A DIGIT
SWHAG3: PUSHJ P,SWHLUR ;GET A DIGIT
JUMPE T1,SWHAG4 ;DONE IF NULL
CAIN T1,"," ;GOT ONE NUMBER OF A LIST?
POPJ P, ;YES - RETURN
SUBI T1,"0" ;ELSE CONVERT TO NUMERIC
JUMPL T1,SWGER0 ;ERROR IF NOT A NUMBER
CAILE T1,9
JRST SWGER0 ;DITTO
IMULI T3,^D10 ;ELSE MULTIPLY BY TEN
ADD T3,T1 ;ADD IN THE NEW DIGIT
JRST SWHAG3 ;AND GET ANOTHER ONE
SWHAG4: JUMPE T0,CPOPJ ;DONE IF NUMBER SHOULD BE POSITIVE
MOVN T3,T3 ;ELSE NEGATE THE RESULT
POPJ P, ;THEN RETURN
;SUBROUTINE TO READ COLON (MAYBE) AND SIXBIT ARGUMENT OF A SWITCH
;RETURNS VALUE, IN SIXBIT, IN T3
;GIVES SKIP RETURN IF VALUE FOUND, NON-SKIP IF NO COLON FOUND
SWHGS0: ILDB T1,PT ;GET THE COLON
SWHAGS: CAIE T1,":" ;IS IT REALLY?
JUMPN T1,SWHGS0 ;NO - TRY NEXT ONE, IF ANY
JUMPE T1,CPOPJ ;NO COLON - NON-SKIP RETURN
AOS (P) ;GOT THE COLON - GIVE SKIP RETURN
SETZ T3, ;CLEAR TARGET
MOVE T4,[POINT 6,T3] ;AND POINT TO TARGET
MOVEI T0,6 ;EXPECT A MAXIMUM OF SIX
SWHGS1: ILDB T1,PT ;GET A CHARACTER
JUMPE T1,CPOPJ ;RETURN, IF NULL
CAIL T1,"a" ;LOWER CASE?
TRZA T1,100 ;YES - MAKE IT SIXBIT
SUBI T1," " ;CONVERT TO SIXBIT
JUMPL T1,SWGER0 ;ERROR IF NOT LEGALLY SIXBIT
IDPB T1,T4 ;ELSE SAVE IT WITH THE REST
SOJG T0,SWHGS1 ;GET MORE - COUNTED OUT?
POPJ P, ;YES - USE ONLY 6 CHARACTERS
IFN TOPS10,<
;SUBROUTINE TO READ COLON (MAYBE) AND SIXBIT ARGUMENT OF A SWITCH
;RETURNS T3/ SIXBIT STRING, T1/ DELIMITER (0 OR ",")
;GIVES SKIP RETURN IF VALUE FOUND, NON-SKIP IF NO COLON FOUND
;FOR ALL BUT THE FIRST VALUE, ENTER AT SWHSC1: (RETURNS +1)
SWHSC0: ILDB T1,PT ;GET THE COLON
SWHGSC: CAIE T1,":" ;IS IT REALLY?
JUMPN T1,SWHSC0 ;NO - TRY NEXT ONE, IF ANY
JUMPE T1,CPOPJ ;NO COLON - NON-SKIP RETURN
AOS (P) ;GOT THE COLON - GIVE SKIP RETURN
SWHSC1: SETZ T3, ;CLEAR TARGET
MOVE T4,[POINT 6,T3] ;AND POINT TO TARGET
MOVEI T2,6 ;EXPECT A MAXIMUM OF SIX
SWHSC2: ILDB T1,PT ;GET A CHARACTER
CAIN T1,"," ;END OF THE STRING?
POPJ P, ;YES - DONE
JUMPE T1,CPOPJ ;RETURN, IF NULL
CAIL T1,"a" ;LOWER CASE?
TRZA T1,100 ;YES - MAKE IT SIXBIT
SUBI T1," " ;CONVERT TO SIXBIT
JUMPL T1,SWGER0 ;ERROR IF NOT LEGALLY SIXBIT
IDPB T1,T4 ;ELSE SAVE IT WITH THE REST
SOJG T2,SWHSC2 ;GET MORE - COUNTED OUT?
POPJ P, ;YES - USE ONLY 6 CHARACTERS
>
;SUBROUTINE TO READ ASCII ARGUMENT OF A SWITCH INTO (T4)
;GIVES SKIP RETURN IF VALUE FOUND, NON-SKIP IF NO COLON FOUND
SWHGA0: ILDB T1,PT ;GET THE COLON
SWHAGA: CAIE T1,":" ;IS IT REALLY?
JUMPN T1,SWHGA0 ;NO - TRY NEXT ONE, IF ANY
JUMPE T1,CPOPJ ;NO COLON - NON-SKIP RETURN
AOS (P) ;GOT THE COLON - GIVE SKIP RETURN
SWHGA1: PUSHJ P,SWHLRX ;GET A CHARACTER
IDPB T1,T4 ;SAVE IT WITH THE REST
JUMPN T1,SWHGA1 ;NO - LOOP IF NOT NULL
POPJ P, ;ELSE RETURN
;SUBROUTINE TO READ ASCII ARGUMENT OF A SWITCH INTO (T4)
;GIVES SKIP RETURN IF VALUE FOUND, NON-SKIP IF NO COLON FOUND
;DELIMITER (0 OR ",") IS RETURNED IN T1
;(LIKE ABOVE, BUT STOPS ON A ",")
SWHGC0: ILDB T1,PT ;GET THE COLON
SWHAGC: CAIE T1,":" ;IS IT REALLY?
JUMPN T1,SWHGC0 ;NO - TRY NEXT ONE, IF ANY
JUMPE T1,CPOPJ ;NO COLON - NON-SKIP RETURN
AOS (P) ;GOT THE COLON - GIVE SKIP RETURN
SWHGC1: PUSHJ P,SWHLRX ;GET A CHARACTER
JUMPE T1,CPOPJ ;DONE IF NULL
CAIN T1,"," ;END OF THIS VALUE?
POPJ P, ;YES - RETURN
IDPB T1,T4 ;ELSE SAVE IT WITH THE REST
JRST SWHGC1 ;AND LOOP
;IF SWITCH ERROR OUTPUT MESSAGE, RETURN TO CALLER OF SWHONE
SWHER0: POP P, ;RETURN TO CALLER OF SWHONE
SWHERR: MOVEI T1,[ASCIZ /############Illegal switch/]
SWHER1: CAIN DO,$SETFI ;DOING A SET-FILE?
JRST STFERR ;YES - GIVE SET-FILE-FLAVORED ERROR
JRST ERROR ;ELSE DISPLAY THE ERROR AND RETURN
SWAERR: JUMPN T1,SWHERR ;IF A CHARACTER WAS TYPED IT'S REALLY ILLEGAL
MOVEI T1,[ASCIZ /#########Ambiguous switch/]
JRST SWHER1 ;DISPLAY THE ERROR AND RETURN
SWGER0: POP P, ;RETURN TO CALLER OF SWHONE
SWGERR: MOVEI T1,[ASCIZ /######Illegal switch argument/]
JRST SWHER1 ;DISPLAY THE ERROR AND RETURN
SWMERR: SKIPA T1,[[ASCIZ ?Can't use /RCUR and /AGAIN together?]]
SDCERR: MOVEI T1,[ASCIZ ?######Illegal argument for /DC:?]
JRST ERROR ;(ALWAYS TREAT AS A NON-SET-FILE ERROR)
SALERR: MOVEI T1,[ASCIZ ?####Use /ALT only at monitor level?]
JRST ERROR ;(ALWAYS TREAT AS A NON-SET-FILE ERROR)
;SWITCH DISPATCH ADDRESSES
SWHADR: EXP SWHAAA,SWHBBB,SWHCCC,SWHDDD,SWHEEE ;A, B, C, D, E
IFE FTJOUR,<
EXP SWHFFF,SWHGGG,SWHHLP,SWHIII,SWHERR ;F, G, H, I, J
>
IFN FTJOUR,<
EXP SWHFFF,SWHGGG,SWHHLP,SWHIII,SWHJJJ ;F, G, H, I, J
>
EXP SWHERR,SWHLLL,SWHMMM,SWHNNN,SWHOFL ;K, L, M, N, O
EXP SWHPPP,SWHQQQ,SWHRRR,SWHSSS,SWHTTT ;P, Q, R, S, T
EXP SWHUPP,SWHERR,SWHWWW,SWHERR,SWHERR,SWHTRM ;U, V, W, X, Y, Z
END