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MCROSS.PAS
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program Mcross;
// {$L+,C-,R-,T+}
// PROGRAM CROSS ( TTY, INPUT, OUTPUT );
(*PROGRAM FOR CREATING A CROSSREFERENCE LIST WITH SIMULTANEOUS
FORMAT OF A PASCAL PROGRAM. WRITTEN BY MANUEL MALL.
PROGRAMM ZUR ERSTELLUNG EINER CROSSREFERENZLISTE MIT GLEICHZEITIGEM
FORMATIEREN EINES PASCALPROGRAMMS.
GESCHRIEBEN VON MANUEL MALL.*)
// Updated 2022-01-04 Paul Robinson for Free Pascal Compiler
(* MOVED FROM DEC-10 1977-10-01 BY SEVED TORSTENDAHL
CHANGED CAUSE
1977-11-22 1 HT & ESC CHAR'S GIVE SYNTAX ERROR
1978-11-22 2 FILENAME VARIABLE TOO SHORT
1978-11-22 3 FILENAME EXTENSION & VERSION GIVEN =>
SPURIOUS ERRORS
1979-10-26 4 FORMFEED SHOULD REMAIN IN SOURCE FILE
1979-10-26 5 FORMFEED AND $P+ SHOULD GIVE NEW PAGE IN LIST FILE
1979-10-26 6 PAGE HEADER MORE LIKE LME STANDARD
1979-10-26 7 FILENAME SHOULD ALLOW DEVICE AND UIC
2021-01-04 8 Fix translation issues
% changed to { and \ changed to }
# is changed to <>
LOOP / EXIT IF ... / END changed to
LOOP := while true do begin
EXIT IF ... := IF ... then break
Octal constants changed from nnnB; to &nnn;
Comments translated to enflisg but with
original comment retained
Changed label / goto statements used to
exit procedure early to exit amd ro
end program to halt
*)
// LABEL
// 99;
// This is being used for EXIT procedure
CONST
VERSION = 'CROSS VERSION OF OCT -79'; {DATE OF LAST MODIFICATION
DATUM DER LETZTEN AENDERUNG}
FEED = 2; {CHARACTER FEED FOR PROCEDURES AND BLOCKS
ZEICHENVORSCHUB BEI PROZEDUREN
UND BLOECKEN}
MAXCH = 72; {MAXIMUM NUMBER OF CHARACTERS
PER PRINT LINE
MAXIMALE ZAHL VON ZEICHEN PRO DRUCKZEILE}
BACKFEED = 1; {CHARACTER PRETENSION AT
'PROCEDURE','BEGIN', ETC.
ZEICHENVORRUECKUNG BEI
'PROCEDURE','BEGIN' ETC.}
MAXLINE = 40; {MAXIMUM NUMBER OF LINES PER PRINT PAGE
MAXIMALE ZAHL VON ZEILEN PRO DRUCKSEITE}
HT = &11; {ASCII HORIZONTAL TAB}
LF = &12; {ASCII LINE FEED}
FF = &14; {ASCII FORM FEED}
CR = &15; {ASCII CARRIAGE RETURN}
TYPE
LINEPTRTY = ^LINE;
LISTPTRTY = ^LIST;
PROCCALLTY = ^PROCCALL;
PROCSTRUCTY = ^PROCSTRUC;
LINENRTY = 0..&7777;
PAGENRTY = 0..&77;
STR5 = PACKED ARRAY [1..5] OF CHAR;
WORD = PACKED ARRAY [1..10] OF CHAR;
SYMBOL = (LABELSY,CONSTSY,TYPESY,VARSY, {DECSYM}
FUNCTIONSY,PROCEDURESY,INITPROCSY, {PROSYM}
ENDSY,UNTILSY,ELSESY,THENSY,EXITSY,OFSY,DOSY,EOBSY, {ENDSYMBOLS}
BEGINSY,CASESY,LOOPSY,REPEATSY,IFSY, {BEGSYM}
RECORDSY,FORWARDSY,OTHERSY,INTCONST,IDENT,STRGCONST,EXTERNSY,
RPARENT,SEMICOLON,POINT,LPARENT,COLON,LBRACK,OTHERSSY{DELIMITER});
LINE = PACKED RECORD {DESCRIPTION OF LINE NUMBERS
BESCHREIBUNG DER ZEILENNUMMERN}
LINENR : LINENRTY; {Line number
ZEILENNUMMER}
PAGENR : PAGENRTY; {Page number
SEITENNUMMER}
CONTLINK : LINEPTRTY {NEXT LINE NUMBER RECORD
NAECHSTER ZEILENNUMMERNRECORD}
END;
LIST = PACKED RECORD {DESCRIPTION OF IDENTIFIERS
BESCHREIBUNG VON IDENTIFIERN}
NAME : WORD; {Name of identifier
NAME DES IDENTIFIERS}
LLINK , {LEFT SUCCESSOR IN TREE
LINKER NACHFOLGER IN BAUM}
RLINK : LISTPTRTY; {Right successor in tree
RECHTER NACHFOLGER IM BAUM}
FIRST , {POINTER TO FIRST LINE NUMBER RECORD
ZEIGER AUF ERSTEN ZEILENNUMMERNRECORD}
LAST : LINEPTRTY; {Pointer to last line number record
ZEIGER AUF LETZTEN ZEILENNUMMERNRECORD}
PROCVAR : 0..2; {0=NO PROCEDURE/ 1=PROCEDURE/
2=FUNCTION
0=KEINE PROZEDUR/ 1=PROZEDUR/
2=FUNKTION}
CALLED, {POINTER TO THE FIRST PROCEDURE
CALLED BY IT
ZEIGER AUF DIE ERSTE PROZEDUR DIE
VON DIESER GERUFEN WIRD}
CALLEDBY : PROCCALLTY {POINTER TO FIRST CALLING PROCEDURE
ZEIGER AUF ERSTE RUFENDE PROZEDUR}
END;
PROCCALL = PACKED RECORD {DESCRIPTION OF PROCEDURE CALLS
BESCHREIBUNG VON PROZEDURAUFRUFEN}
PROCNAME : LISTPTRTY; {POINTER TO THE CORRESPONDING
IDENTIFIER RECORD
ZEIGER AUF DEN ZUGEHOERIGEN
IDENTIFIERRECORD}
NEXTPROC : PROCCALLTY; {POINTER TO THE NEXT PROCEDURE
ZEIGER AUF DIE NAECHSTE PROZEDUR}
FIRST, {LINE NUMBERCORD FOR THE FIRST CALL
ZEILENNUMMERNRECORD FUER DEN
ERSTEN AUFRUF}
LAST : LINEPTRTY {LINE NUMBEER RCORD FOR THE LAST CALL
ZEILENNUMMERNRECORD FUER DEN
LETZTEN AUFRUF}
END;
DOUBLEDEC = PACKED RECORD {PROCEDURES THAT ARE ALSO
DEFINED AS NORMAL ID.
PROZEDUREN DIE AUCH ALS
NORMALE ID. DEFINIERT WURDEN}
PROCORT : LISTPTRTY; {POINTER TO THE PROCEDURE
ZEIGER AUF DIE PROZEDUR}
NEXTPROC: ^DOUBLEDEC {NEXT DOUBLE-DECLARED PROCEDURE
NAECHSTE DOPPELT DEKLARIERTE PROZEDUR}
END;
PROCSTRUC = PACKED RECORD {DESCRIPTION OF PROCEDURE NESTING
BESCHREIBUNG DER
PROZEDURVERSCHACHTELUNG}
PROCNAME : LISTPTRTY; {POINTER TO THE ASSOCIATED IDENTIFIER
ZEIGER AUF DEN ZUGERHOERIGEN
IDENTIFIER}
NEXTPROC : PROCSTRUCTY; {POINTER TO THE PROCEDURE DECLARED NEXT
ZEIGER AUF DIE NAECHSTD
DEKLARIERTE PROZEDUR}
LINENR : LINENRTY; {PROCEDURE DEFINITION LINE NUMBER
ZEILENNUMMER DER PROZEDURDEFINITION}
PAGENR , {PROCEDURE DEFINITION PAGE NUMBER
SEITENNUMMER DER PROZEDURDEFINITION}
PROCLEVEL: PAGENRTY {NESTING DEPTH OF PROCEDURE
VERSCHACHTELUNGSTIEFE DER PROZEDUR}
END;
VAR
PIX,
I, {LOOP VARIABLE
SCHLEIFENVARIABLE}
BUFFLEN, {LENGTH OF THE DESCRIBED PART OF
THE INPUT BUFFER
LAENGE DES BESCHRIEBENEN TEILS
DES EINGABEPUFFERS}
BUFFMARK, {LENGTH OF THE ALREADY PRINTED
PART OF THE BUFFER
LAENGE DES SCHON GEDRUCKTEN
TEIL DES PUFFERS}
BUFFERPTR, {POINTER TO THE NEXT CHARACTER
TO READ IN THE BUFFER
ZEIGER AUF DAS NAECHSTE ZU
LESENDE ZEICHEN IM PUFFER}
BUFFINDEX, {POINTERS IN BUFF'S ARRAY
ZEIGER IM ARRAY VON BUFF}
BMARKNR, {NUMBER TO BE PRINTED FOR MARKING
'BEGIN', 'LOOP' ETC.
ZU DRUCKENDE NUMMER FUER MARKIERUNG
VON 'BEGIN', 'LOOP' ETC.}
EMARKNR, {NUMBER TO BE PRINTED FOR MARKING
'END', 'UNTIL' ETC.
ZU DRUCKENDE NUMMER FUER MARKIERUNG
VON 'END', 'UNTIL' ETC.}
SPACES, {CHARACTER FEED FOR FORMATTING
ZEICHENVORSCHUB FUER DIE FORMATIERUNG}
LASTSPACES, {LAST CHARACTER FEED USED
LETZTER BENUTZTER ZEICHENVORSCHUB}
SYLENG, {LENGTH OF THE LAST IDENTIFIER READ
LAENGE DES LETZTEN GELESENEN
BEZEICHNERS}
CHCNT, {NUMBER OF RELEVANT CHARACTERS IN
THE LAST IDENTIFIER
ANZAHL DER RELEVANTEN ZEICHEN IM
LETZTEN BEZEICHNER}
LEVEL, {NESTING DEPTH OF THE CURRENT PROCEDURE
VERSCHACHTELUNGSTIEFE DER
AKTUELLEN PROZEDUR}
BLOCKNR, {INCLUDES THE MARKED STATEMENTS
ZAEHLT DIE GEKENNZEICHNETEN STATEMENTS}
PROCDEC, {SET AT PROCEDURE DECLARATION
1=PROCEDURE 2=FUNCTION
GESETZT BEI PROZEDUR DEKLARATION
1=PROCEDURE 2=FUNCTION}
PAGECNT, {COUNTS THE NUMBER OF SOS PAGES
ZAEHLT DIE SOS-SEITEN}
PAGECNT2, {COUNTS PRINT PAGES PER SOS PAGE
ZAEHLT DIE DRUCKSEITEN PRO SOS-SEITE}
INCREMENT, {PARAMETERS FOR INCREASING LINE NUMBERS
PARAMETER FUER DIE ERHOEHUNG
DER ZEILENNUMMERN}
MAXINC, {LARGEST ALLOWED LINE NUMBER
GROESSTE ERLAUBTE ZEILENNUMMER}
REALLINCNT, {COUNT OF LINES PER PRINT PAGE
ZAEHLT DIE ZEILEN PRO DRUCKSEITE}
LINECNT : INTEGER; {COUNTS THE ROWS PER SOS PAGE
ZAEHLT DIE ZEILEN PRO SOS-SEITE}
INPUTFILE, {DESCRIPTION OF THE INPUT FILE
BESCHREIBUNG DES EINGABEFILES}
OUTPUTFILE : RECORD {DESCRIPTION OF THE OUTPUT FILE
BESCHREIBUNG DES AUSGABEFILES}
// these 3 are only used by DEC timesharing operating systems
DEV,UIC,FILENAME : PACKED ARRAY [1..20] OF CHAR (*** C7 ***)
END;
// file extensions: pascal, listing, cross-reference
PAS,NUE,CRL: PACKED ARRAY [0..3] OF CHAR;
// IOS only used on DEC 10
// IOS: SET OF IOSPEC;
// used as argument to rewrite
BUFFER : ARRAY [1..147] OF CHAR; {INPUT BUFFER (147 CHARACTERS =
MAX. LENGTH SOS LINE)
EINGABEPUFFER (147 ZEICHEN =
MAX. LAENGE SOS-ZEILE)}
LINENB : PACKED ARRAY [1..5] OF CHAR; {SOS LINE NUMBER
SOS-ZEILENNUMMER}
TIMEANDDAY : PACKED ARRAY [1..24] OF CHAR; {DATE AND TIME FOR
PRINT PAGE HEAD
DATUM UND UHRZEIT
FUER DRUCKSEITENKOPF}
SY : WORD; {LETZTER GELESENER BEZEICHNER}
SYTY : SYMBOL; {TYP DES LETZTEN GELESENEN ZEICHENS}
PAGEEJECT, {MARKER FOR PAGE SHIFT} (*** C5 ***)
ERRFLAG, {FEHLERMARKE}
OLDSPACES, {GESETZT WENN LASTSPACES BENUTZT WERDEN SOLL}
EOB : BOOLEAN; {EOF-MARKE}
CH, {LETZTES GELESENES ZEICHEN}
BMARKTEXT, {TEXT ZUR MARKIERUNG VON 'BEGIN' ETC.}
EMARKTEXT: CHAR; {TEXT ZUR MARKIERUNG VON 'END' ETC.}
DELSY : ARRAY [' '..'_'] OF SYMBOL; {TYPENARRAY FUER DELIMITERZEICHEN}
RESNUM : ARRAY [1..11] OF INTEGER; {STARTADRESSEN FUER DIE RESERVIERTEN WORTE BESTIMMTER LAENGE}
RESLIST : ARRAY [1..43] OF WORD; {LISTE DER RESERVIERTEN WORTE}
RESSY : ARRAY [1..43] OF SYMBOL; {TYPENLISTE DER RESERVIERTEN WORTE}
ALPHANUM, {ZEICHEN VON 0..9 UND A..Z}
DIGITS, {ZEICHEN VON 0..9}
LETTERS : SET OF CHAR; {ZEICHEN VON A..Z}
RELEVANTSYM, {STARTSYMBOLE FUER STATEMENTS UND PROCEDURES}
PROSYM, {ALLE SYMBOLE DIE DEN BEGINN EINER PROZEDUR KENNZEICHNEN}
DECSYM, {ALLE SYMBOLE DIE DEN BEGINN VON DEKLARATIONEN KENNZEICHNEN}
BEGSYM, {ALLE SYMBOLE DIE DEN BEGINN EINES STATEMENTS KENNZEICHNEN}
ENDSYM : SET OF SYMBOL; {ALLE SYMBOLE DIE STATEMENTS ODER PROZEDUREN TERMINIEREN}
LISTPTR : LISTPTRTY; {ZEIGER IM BINAERBAUM DER DEKLARIETEN BEZEICHNER}
FIRSTNAME : ARRAY ['A'..'Z'] OF LISTPTRTY; {ZEIGER AUF DIE WURZELN DES BAUMES}
PROCSTRUCF, {ZEIGER AUF DAS ERSTE ELEMENT DER PROZEDURENLISTE}
PROCSTRUCL : PROCSTRUCTY; {ZEIGER AUF DAS LETZTE ELEMENT DER PROZEDURENLISTE}
//NEWFIL : FILE OF CHAR; {AUSGABEFILE AUF DEM DAS NEUFORMATIERTE PROGRAMM STEHT}
TTY,
NEWFIL: text;
MESSAGE : PACKED ARRAY [1..23] OF CHAR; {ARRAY ZUR AUSGABE DER SCHLUSSMELDUNG}
PROCEDURE INIT;
BEGIN
BEGIN
RESNUM[1] := 1;
RESNUM[2] := 1;
RESNUM[3] := 7;
RESNUM[4] :=15;
RESNUM[5] :=26;
RESNUM[6] :=32;
RESNUM[7] :=38;
RESNUM[8] :=41;
RESNUM[9] :=42;
RESNUM[10]:=43;
RESNUM[11]:=44;
RESLIST[ 1] :='IF '; RESSY [ 1] := IFSY; RESLIST[ 2] :='TO '; RESSY [ 2] := OTHERSY;
RESLIST[ 3] :='OF '; RESSY [ 3] := OFSY; RESLIST[ 4] :='IN '; RESSY [ 4] := OTHERSY;
RESLIST[ 5] :='DO '; RESSY [ 5] := DOSY; RESLIST[ 6] :='OR '; RESSY [ 6] := OTHERSY;
RESLIST[ 7] :='END '; RESSY [ 7] := ENDSY; RESLIST[ 8] :='FOR '; RESSY [ 8] := OTHERSY;
RESLIST[ 9] :='SET '; RESSY [ 9] := OTHERSY; RESLIST[10] :='AND '; RESSY [10] := OTHERSY;
RESLIST[11] :='NOT '; RESSY [11] := OTHERSY; RESLIST[12] :='VAR '; RESSY [12] := VARSY;
RESLIST[13] :='NIL '; RESSY [13] := OTHERSY; RESLIST[14] :='DIV '; RESSY [14] := OTHERSY;
RESLIST[15] :='LOOP '; RESSY [15] := LOOPSY; RESLIST[16] :='CHAR '; RESSY [16] := OTHERSY;
RESLIST[17] :='GOTO '; RESSY [17] := OTHERSY; RESLIST[18] :='THEN '; RESSY [18] := THENSY;
RESLIST[19] :='ELSE '; RESSY [19] := ELSESY; RESLIST[20] :='WITH '; RESSY [20] := OTHERSY;
RESLIST[21] :='CASE '; RESSY [21] := CASESY; RESLIST[22] :='REAL '; RESSY [22] := OTHERSY;
RESLIST[23] :='FILE '; RESSY [23] := OTHERSY; RESLIST[24] :='TYPE '; RESSY [24] := TYPESY;
RESLIST[25] :='EXIT '; RESSY [25] := EXITSY; RESLIST[26] :='BEGIN'; RESSY [26] := BEGINSY;
RESLIST[27] :='ARRAY'; RESSY [27] := OTHERSY; RESLIST[28] :='WHILE'; RESSY [28] := OTHERSY;
RESLIST[29] :='CONST'; RESSY [29] := CONSTSY; RESLIST[30] :='LABEL'; RESSY [30] := LABELSY;
RESLIST[31] :='UNTIL'; RESSY [31] := UNTILSY; RESLIST[32] :='RECORD'; RESSY [32] := RECORDSY;
RESLIST[33] :='REPEAT'; RESSY [33] := REPEATSY; RESLIST[34] :='DOWNTO'; RESSY [34] := OTHERSY;
RESLIST[35] :='PACKED'; RESSY [35] := OTHERSY; RESLIST[36] :='OTHERS'; RESSY [36] := OTHERSSY;
RESLIST[37] :='EXTERN'; RESSY [37] := EXTERNSY; RESLIST[38] :='INTEGER'; RESSY [38] := OTHERSY;
RESLIST[39] :='BOOLEAN'; RESSY [39] := OTHERSY; RESLIST[40] :='FORWARD'; RESSY [40] := FORWARDSY;
RESLIST[41] :='FUNCTION'; RESSY [41] := FUNCTIONSY;RESLIST[42] :='PROCEDURE'; RESSY [42] := PROCEDURESY;
RESLIST[43] :='INITPROCED'; RESSY [43] := INITPROCSY;
END;
BEGIN
I := 0;
BUFFLEN := 0;
BUFFMARK := 0;
BUFFERPTR := 2;
BUFFINDEX := 0;
REALLINCNT:= 0;
LINECNT :=0;
BLOCKNR := 0;
LEVEL := 0;
PAGECNT := 1;
PAGECNT2 := 0;
INCREMENT := 1;
EOB := FALSE;
ERRFLAG := FALSE;
OLDSPACES := FALSE;
CH := ' ';
BMARKTEXT := ' ';
EMARKTEXT := ' ';
SY := ' ';
MESSAGE := 'ERROR IN BLOCKSTRUCTURE';
TIMEANDDAY := ' : : ';
DIGITS := ['0'..'9'];
LETTERS := ['A'..'Z'];
ALPHANUM := ['0'..'9','A'..'Z'] {LETTERS OR DIGITS};
DECSYM := [LABELSY..VARSY];
PROSYM := [FUNCTIONSY..INITPROCSY];
ENDSYM := [FUNCTIONSY..EOBSY]; {PROSYM OR ENDSYMBOLS}
BEGSYM := [BEGINSY..IFSY];
RELEVANTSYM := [LABELSY..INITPROCSY {DECSYM OR PROSYM} ,BEGINSY,FORWARDSY,EXTERNSY,EOBSY];
PAS:='.PAS'; NUE:='.PAS'; CRL:='.CRL';
END;
BEGIN (*INIT*)
FOR CH := 'A' TO 'Z' DO FIRSTNAME [CH] := NIL;
FOR CH := ' ' TO '_' DO DELSY [CH] := OTHERSY;
DELSY ['('] := LPARENT;
DELSY [')'] := RPARENT;
DELSY ['['] := LPARENT;
DELSY [']'] := RPARENT;
DELSY [';'] := SEMICOLON;
DELSY ['.'] := POINT;
DELSY [':'] := COLON;
FOR I := 1 TO 147 DO BUFFER [I] := ' ';
I := 0;
NEW (FIRSTNAME['M']);
LISTPTR := FIRSTNAME ['M'];
WITH FIRSTNAME ['M']^ DO
BEGIN
NAME := 'MAIN. ';
LLINK := NIL;
RLINK := NIL;
NEW (FIRST);
LAST := FIRST;
PROCVAR := 1;
WITH LAST^ DO
BEGIN
LINENR := LINECNT;
CONTLINK := NIL;
END;
NEW (CALLED);
WITH CALLED^ DO
BEGIN
PROCNAME := FIRSTNAME ['M'];
NEXTPROC := NIL;
NEW (FIRST);
FIRST^.LINENR := 0;
FIRST^.CONTLINK := NIL;
LAST := FIRST;
END;
NEW (CALLEDBY);
WITH CALLEDBY^ DO
BEGIN
PROCNAME := FIRSTNAME ['M'];
NEXTPROC := NIL;
NEW (FIRST);
FIRST^.LINENR := 0;
FIRST^.CONTLINK := NIL;
LAST := FIRST;
END;
END;
NEW (PROCSTRUCF);
WITH PROCSTRUCF^ DO
BEGIN
PROCNAME := FIRSTNAME ['M'];
NEXTPROC := NIL;
LINENR := 0;
PROCLEVEL:= 0;
END;
PROCSTRUCL := PROCSTRUCF;
END {INIT} ;
END;
PROCEDURE GETLINENR( FLIN: STR5 );
VAR
I,L,FAC: INTEGER;
BEGIN
FAC:=10000; L:=LINECNT+1;
FOR I:=1 TO 5 DO
BEGIN
FLIN[I] := CHR( L DIV FAC + &60 );
L := L MOD FAC; FAC := FAC DIV 10;
END
END;
PROCEDURE WRITECH (FCH : CHAR);
BEGIN {WRITECH}
WRITE(NEWFIL,FCH);
END {WRITECH};
PROCEDURE WRITELIN;
BEGIN {WRITELIN}
WRITELN(NEWFIL);
END {WRITELIN};
PROCEDURE WRITEPAGE;
BEGIN {WRITEPAGE}
WRITELN(NEWFIL,CHR(FF));
END {WRITEPAGE};
PROCEDURE WRITELINNR;
VAR
I, LLINECNT : INTEGER;
BEGIN {WRITELINNR}
LLINECNT := LINECNT * INCREMENT;
(*
I := 10000;
FOR BUFFINDEX := 1 TO 4 DO
BEGIN
WRITE( NEWFIL, CHR (LLINECNT DIV I + 60B));
LLINECNT := LLINECNT MOD I;
I := I DIV 10
END;
WRITE( NEWFIL, CHR(LLINECNT+61B),CHR(HT));
*)
END {WRITELINNR};
{
PROCEDURE DATUM;
VAR
DATUM,TIM : PACKED ARRAY [1..10] OF CHAR;
I : INTEGER;
BEGIN
DATE( DATUM ); TIME( TIM );
FOR I := 1 TO 10 DO TIMEANDDAY[I] := DATUM[I];
FOR I:= 1 TO 8 DO TIMEANDDAY[I+16] := TIM[I];
END;
}
// These will be replaced; until then
PROCEDURE datum; begin end;
PROCEDURE page; begin end;
PROCEDURE HEADER;
BEGIN {HEADER}
PAGECNT2 := PAGECNT2 + 1;
REALLINCNT := 0;
PAGE;
WRITELN ('TELEFON AB LM ERICSSON ',TIMEANDDAY,' ':10,
'PAGE',PAGECNT2:4 ); (*** C6 ***)
WRITELN ('PASCAL - ',VERSION,' ':10,OUTPUTFILE.FILENAME); (*** C6 ***)
WRITELN; WRITELN; (*** C6 ***)
PAGEEJECT := FALSE; (*** C5 ***)
END {HEADER} ;
PROCEDURE NEWPAGE;
BEGIN {NEWPAGE}
WRITEPAGE;
HEADER;
IF EOLN (INPUT)
THEN READLN;
END {NEWPAGE} ;
PROCEDURE WRITELINE (POSITION {LETZTES ZU DRUCKENDES ZEICHEN IM PUFFER} : INTEGER);
VAR
I, TABCNT, LSPACES : INTEGER; {MARKIERT ERSTES ZU DRUCKENDES ZEICHEN}
BEGIN {WRITELINE}
POSITION := POSITION - 2;
IF POSITION > 0
THEN
BEGIN
I := BUFFMARK + 1;
WHILE (BUFFER [I] = ' ') AND (I <= POSITION) DO I := I + 1;
BUFFMARK := POSITION;
WHILE (BUFFER [POSITION] = ' ') AND (I < POSITION) DO POSITION := POSITION - 1;
IF I <= POSITION
THEN
BEGIN
IF REALLINCNT = MAXLINE
THEN HEADER;
LINECNT := LINECNT + 1;
REALLINCNT := REALLINCNT + 1;
IF BMARKTEXT <> ' '
THEN
BEGIN
WRITE (BMARKTEXT, BMARKNR : 4, ' ');
BMARKTEXT := ' ';
END
ELSE
IF EMARKTEXT <> ' '
THEN
BEGIN
WRITE (' ',EMARKTEXT,EMARKNR : 4,' ');
EMARKTEXT := ' ';
END
ELSE WRITE (' ');
WRITE (LINECNT * INCREMENT : 5,' ');
WRITELINNR;
IF NOT OLDSPACES
THEN LASTSPACES := SPACES;
WRITE (' ' : LASTSPACES);
TABCNT := LASTSPACES DIV 8;
LSPACES := LASTSPACES MOD 8;
FOR TABCNT := TABCNT DOWNTO 1 DO WRITECH (CHR(HT));
FOR LSPACES := LSPACES DOWNTO 1 DO WRITECH (' ');
IF (POSITION - I + LASTSPACES + 1) > MAXCH
THEN
BEGIN
IF REALLINCNT = MAXLINE
THEN
BEGIN
FOR I := I TO MAXCH + I - LASTSPACES - 1 DO
BEGIN
WRITE (BUFFER[I]);
WRITECH (BUFFER[I]);
BUFFER [I] := ' ';
END;
WRITELN;
HEADER;
END;
REALLINCNT := REALLINCNT + 1;
END;
FOR I := I TO POSITION DO
BEGIN
WRITE (BUFFER [I]);
WRITECH (BUFFER[I]);
BUFFER [I] := ' ';
END;
WRITELIN;
WRITELN;
IF ((LINENB = ' ') AND (POSITION = BUFFLEN)) OR (MAXINC = LINECNT)
THEN NEWPAGE;
IF PAGEEJECT THEN HEADER; (*** C5 ***)
END;
END;
LASTSPACES := SPACES;
OLDSPACES := FALSE;
END {WRITELINE} ;
PROCEDURE BLOCK;
VAR
DOUBLEDECF, {ZEIGER AUF ERSTE UND LETZTE VARIABLE DIE ALS PROCEDURE}
DOUBLEDECL : ^DOUBLEDEC; {IN DIESEM BLOCK DOPPELT DEKLARIERT WURDEN}
CURPROC : LISTPTRTY; {ZEIGER AUF DIE PROZEDUR IN DEREN ANWEISUNGSTEIL DAS PROGRAMM SICH BEFINDET}
PROCEDURE INSYMBOL ;
LABEL
1;
VAR
OLDSPACESMARK, {ALTER ZEICHENVORSCHUB BEI FORMATIERUNG VON KOMMENTAREN}
I : INTEGER;
PROCEDURE READBUFFER;
PROCEDURE READLINE;
VAR
CH : CHAR;
BEGIN {READLINE}
REPEAT
WHILE EOLN (INPUT) AND NOT (EOF (INPUT)) DO
BEGIN
GETLINENR (LINENB);
READLN;
BEGIN
IF REALLINCNT = MAXLINE
THEN HEADER;
LINECNT := LINECNT + 1;
REALLINCNT := REALLINCNT + 1;
WRITELN (' ' : 12,LINECNT * INCREMENT : 5);
WRITELINNR;
WRITELIN;
IF MAXINC = LINECNT
THEN NEWPAGE;
END;
END;
READ (CH);
IF CH = CHR(FF) THEN (*** C5 ***)
BEGIN NEWPAGE;
IF EOLN(INPUT) THEN BEGIN READLN; READ(CH) END;
END;
IF CH < ' ' (*** C 1 ***)
THEN CH := ' ';
UNTIL (CH <> ' ') OR (EOF (INPUT));
BUFFLEN := 0;
// LOOP
while true do begin
BUFFLEN := BUFFLEN + 1;
BUFFER [BUFFLEN] := CH;
// EXIT IF (EOLN (INPUT) OR (BUFFLEN = 147));
IF (EOLN (INPUT) OR (BUFFLEN = 147)) then break;
READ (CH);
IF CH < ' ' THEN CH := ' '; (*** C 1 ***)
END;
IF NOT (EOLN (INPUT))
THEN
BEGIN
WRITELN (TTY);
WRITELN (TTY,'LINE ',(LINECNT+1)*INCREMENT : 5,'TOO LONG');
WRITELN (' ' : 17,' **** NEXT LINE TOO LONG ****');
END
ELSE
IF NOT (EOF (INPUT))
THEN
BEGIN
GETLINENR (LINENB);
READLN;
END;
BUFFERPTR := 1;
BUFFMARK := 0;
END {READLINE} ;
BEGIN {READBUFFER}
IF BUFFERPTR = BUFFLEN + 2
THEN
BEGIN
WRITELINE (BUFFERPTR);
CH := ' ';
IF EOF (INPUT)
THEN EOB := TRUE
ELSE READLINE;
END
ELSE
BEGIN
CH := BUFFER [BUFFERPTR];
BUFFERPTR := BUFFERPTR + 1;
END;
END {READBUFFER} ;
PROCEDURE LPARENTHESE;
VAR
OLDSPACESMARK : INTEGER; {OLD CHARACTER FEED WHEN FORMATTING
PARENTHESES
ALTER ZEICHENVORSCHUB BEI FORMATIERUNG
VON KLAMMERN}
BEGIN {PARENTHESE}
OLDSPACESMARK := SPACES;
IF OLDSPACES
THEN SPACES := LASTSPACES + BUFFERPTR - 2
ELSE
BEGIN
LASTSPACES := SPACES;
SPACES := SPACES + BUFFERPTR - 2;
OLDSPACES := TRUE;
END;
REPEAT
INSYMBOL
UNTIL SYTY IN [RPARENT,EOBSY];
SPACES := OLDSPACESMARK;
OLDSPACES := TRUE;
INSYMBOL;
END {PARENTHESE} ;
FUNCTION RESWORD: BOOLEAN ;
LABEL
1;
VAR
I : INTEGER;
BEGIN {RESWORD}
RESWORD:= FALSE;
FOR I:=RESNUM[CHCNT] TO RESNUM [CHCNT + 1] -1 DO
IF RESLIST[ I ] = SY
THEN
BEGIN
RESWORD := TRUE;
SYTY := RESSY [I];
GOTO 1;
END;
1:
END {RESWORD} ;
PROCEDURE FINDNAME;
LABEL
1;
VAR
PROCPTR : PROCCALLTY; {POINTER TO CALLING OR CALLED PROCEDURE
WHEN CONCATENATING
ZEIGER AUF RUFENDE BZW. GERUFENE PROZEDUR
BEI DEREN VERKETTUNG}
LPTR: LISTPTRTY; {POINTER TO THE LEADER IN THE TREE
ZEIGER AUF DEN VORGAENGER IM BAUM}
ZPTR : LINEPTRTY; {POINTER TO THE PENULTIMATE LINE NUMBER IN
A CHAIN
ZEIGER AUF DIE VORLETZTE ZEILENNUMMER IN
EINER KETTE}
RIGHT: BOOLEAN; {MEMORY VARIABLE FOR BRANCHING IN THE TREE
MERKVARIABLE FUER DIE VERZWEIGUNG IM BAUM}
INDEXCH : CHAR; {INDEX VARIABLE FOR THE START POINTER
FIELD (FIRSTNAME)
INDEXVARIABLE FUER DAS FELD DER
STARTZEIGER (FIRSTNAME)}
PROCEDURE FINDPROC (COMP : LISTPTRTY);
VAR
PROCCALLPTR : PROCCALLTY; {MERK SICH LETZTE PROZEDUR FALLS EINE NEUE ERZEUGT WERDEN MUSS}
BEGIN {FINDPROC}
WHILE (PROCPTR^.PROCNAME <> COMP) AND (PROCPTR^.NEXTPROC <> NIL) DO
PROCPTR := PROCPTR^.NEXTPROC;
IF PROCPTR^.PROCNAME = COMP
THEN
BEGIN
ZPTR := PROCPTR^.LAST;
NEW (PROCPTR^.LAST);
WITH PROCPTR^.LAST^ DO
BEGIN
LINENR := LINECNT + 1;
PAGENR := PAGECNT;
CONTLINK := NIL;
END;
ZPTR^.CONTLINK := PROCPTR^.LAST;
END
ELSE
BEGIN
PROCCALLPTR := PROCPTR;
NEW (PROCPTR);
WITH PROCPTR^ DO
BEGIN
PROCNAME := COMP;
NEXTPROC := NIL;
ZPTR := FIRST;
NEW (FIRST);
WITH FIRST^ DO
BEGIN
LINENR := LINECNT + 1;
PAGENR := PAGECNT;
CONTLINK := NIL;
END;
ZPTR^.CONTLINK := FIRST;
LAST := FIRST;
END;
PROCCALLPTR^.NEXTPROC := PROCPTR;
END;
END {FINDPROC} ;
PROCEDURE NEWPROCEDURE;
BEGIN {NEWPROCEDURE}
WITH LISTPTR^ DO
BEGIN
PROCVAR := PROCDEC;
NEW (CALLEDBY);
WITH CALLEDBY^ DO
BEGIN
PROCNAME := CURPROC;
NEXTPROC := NIL;
ZPTR := FIRST;
NEW (FIRST);
WITH FIRST^ DO
BEGIN
LINENR := LINECNT + 1;
PAGENR := PAGECNT;
CONTLINK := NIL;
END;
ZPTR^.CONTLINK := FIRST; // $$** CRASHPOINT ** $$$
LAST := FIRST;
END;
NEW (CALLED);
WITH CALLED^ DO
BEGIN
PROCNAME := FIRSTNAME ['M'];
NEXTPROC := NIL;
ZPTR := FIRST;
NEW (FIRST);
WITH FIRST^ DO
BEGIN
LINENR := LINECNT + 1;
PAGENR := PAGECNT;
CONTLINK := NIL;
END;
ZPTR^.CONTLINK := FIRST;
LAST := FIRST;
END;
END;
NEW (PROCSTRUCL^.NEXTPROC);
PROCSTRUCL := PROCSTRUCL^.NEXTPROC;
WITH PROCSTRUCL^ DO
BEGIN
PROCNAME := LISTPTR;
NEXTPROC := NIL;
LINENR := LINECNT + 1;
PAGENR := PAGECNT;
PROCLEVEL := LEVEL;
END;
END {NEWPROCEDURE} ;
BEGIN {FINDNAME}
INDEXCH := SY [1];
LISTPTR := FIRSTNAME [INDEXCH];
WHILE LISTPTR <> NIL DO
BEGIN
LPTR:= LISTPTR;
IF SY = LISTPTR^.NAME
THEN
BEGIN
ZPTR := LISTPTR^.LAST;
NEW (LISTPTR^.LAST);
WITH LISTPTR^.LAST^ DO
BEGIN
LINENR := LINECNT + 1;
PAGENR := PAGECNT;
CONTLINK := NIL;
END;
ZPTR^.CONTLINK := LISTPTR^.LAST;
IF LISTPTR^.PROCVAR <> 0
THEN
BEGIN
IF LISTPTR^.PROCVAR = 2
THEN WHILE CH = ' ' DO
BEGIN
SYLENG := SYLENG + 1;
READBUFFER;
END;
IF (CH <> ':') OR (LISTPTR^.PROCVAR = 1)
THEN
BEGIN
PROCPTR := LISTPTR^.CALLEDBY;
FINDPROC (CURPROC);
PROCPTR := CURPROC^.CALLED;
FINDPROC (LISTPTR);
END
END
ELSE
IF PROCDEC <> 0
THEN
BEGIN
IF DOUBLEDECF = NIL
THEN
BEGIN
NEW (DOUBLEDECF);
DOUBLEDECL := DOUBLEDECF;
END
ELSE
BEGIN
NEW (DOUBLEDECL^.NEXTPROC);
DOUBLEDECL := DOUBLEDECL^.NEXTPROC;
END;
DOUBLEDECL^.NEXTPROC := NIL;
DOUBLEDECL^.PROCORT := LISTPTR;
NEWPROCEDURE;
END;
GOTO 1;
END
ELSE
IF SY > LISTPTR^.NAME
THEN
BEGIN
LISTPTR:= LISTPTR^.RLINK;
RIGHT:= TRUE;
END
ELSE
BEGIN
LISTPTR:= LISTPTR^.LLINK;
RIGHT:= FALSE;
END;
END;
NEW (LISTPTR);
WITH LISTPTR^ DO
BEGIN
NAME := SY;
LLINK := NIL;
RLINK := NIL;
END;
IF FIRSTNAME [INDEXCH] = NIL
THEN FIRSTNAME [INDEXCH] := LISTPTR
ELSE
IF RIGHT
THEN LPTR^.RLINK := LISTPTR
ELSE LPTR^.LLINK := LISTPTR;
WITH LISTPTR^ DO
BEGIN
NEW (FIRST);
WITH FIRST^ DO
BEGIN
LINENR := LINECNT + 1;
PAGENR := PAGECNT;
CONTLINK := NIL;
END;
LAST := FIRST ;
IF PROCDEC = 0
THEN
BEGIN
PROCVAR := 0;
CALLED := NIL;
CALLEDBY := NIL;
END
ELSE NEWPROCEDURE;
END;
1:
PROCDEC := 0;
END {FINDNAME} ;
BEGIN {INSYMBOL}
SYLENG := 0;
WHILE (CH IN ['_','(',' ','{','$','?','}','!','@'])
AND NOT EOB AND (CH <= '_') DO
BEGIN
IF (CH = '{') OR (CH = '(') AND (BUFFER[BUFFERPTR] = '*')
THEN
BEGIN
OLDSPACESMARK := SPACES;
IF OLDSPACES
THEN SPACES := LASTSPACES
ELSE LASTSPACES := SPACES;
SPACES := SPACES + BUFFERPTR - 1;
OLDSPACES := TRUE;
IF CH = '{'
THEN
REPEAT
READBUFFER;
UNTIL (CH = '}') OR EOB
ELSE
BEGIN
PAGEEJECT := (BUFFER[BUFFERPTR+1]='$') AND (BUFFER[BUFFERPTR+2]='P')
AND (BUFFER[BUFFERPTR+3]='+'); (*** C5 ***)
REPEAT
READBUFFER
UNTIL (CH = ')') AND (BUFFER[BUFFERPTR-2] = '*') OR EOB;
END;
SPACES := OLDSPACESMARK;
OLDSPACES := TRUE;
END
ELSE
IF CH = '('
THEN GOTO 1;
READBUFFER;
END;
IF CH = ''''
THEN
BEGIN
SYTY := STRGCONST;
REPEAT
READBUFFER;
UNTIL (CH = '''') OR EOB;
READBUFFER;
END
ELSE
IF (CH IN LETTERS) OR (ORD(CH) > &137)
THEN
BEGIN
SYLENG := 0;
REPEAT
SYLENG := SYLENG + 1;
IF ORD(CH) > &137
THEN CH := CHR(ORD(CH)-32);
IF SYLENG <= 10
THEN SY [SYLENG] := CH;
READBUFFER;
// UNTIL NOT ((CH IN (ALPHANUM OR ['_'])) OR (CH > '_'));
UNTIL NOT ((CH IN (ALPHANUM + ['_'])) OR (CH > '_'));
FOR I := SYLENG + 1 TO 10 DO SY [I] := ' ';
IF SYLENG > 10
THEN CHCNT := 10
ELSE CHCNT := SYLENG;
IF NOT RESWORD
THEN