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mcross.lpr
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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
2021-01-05 9 Ran program through PTOP to reformat and to
make program easier to understand
*)
// 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}
// Reserved Words
Const
MaxResSize = 14; // 2..MaxResSize+1 letters in identifiers
MaxResWords = 100; // Max possiblr keywords
MaxModifiers= 300; // modifiers are only keywords in some circumstances
Type
LINEPTRTY = ^LINE;
LISTPTRTY = ^LIST;
PROCCALLTY = ^PROCCALL;
PROCSTRUCTY = ^PROCSTRUC;
LINENRTY = 0..&7777;
PAGENRTY = 0..&77;
STR5 = PACKED ARRAY [1..5] Of CHAR;
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 : String; {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 NUMBER RECORD FOR THE
FIRST CALL
ZEILENNUMMERNRECORD FUER DEN
ERSTEN AUFRUF}
LAST : LINEPTRTY {LINE NUMBEER RCORD FOR THE
LAST CALL
ZEILENNUMMERNRECORD FUER DEN
LETZTEN AUFRUF}
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;
SYMBOL = (LABELSY,CONSTSY,TYPESY,VARSY,UNITSY,USESSY, {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,
CLASSSY,OBJECTSY,PROGRAMSY,INTERFACESY,DESTRUCTORSY,
CONSTRUCTORSY,IMPLEMENTATIONSY,
OTHERSSY{DELIMITER});
FullString = UnicodeString;
// these two will be fleshed out later
affecttype = (noeffect, consteffect, beforeprocedural,afterprocedural,
other);
modifier = (virtualmod,propertymod);
ModEntry = Record
Affects: set of affecttype;
Which: Modifier;
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;
Var
RESNUM : ARRAY [1..MaxResSize] Of INTEGER;
{num. of letters -1 in reserve words
STARTADRESSEN FUER DIE RESERVIERTEN
WORTE BESTIMMTER LAENGE}
RESLIST : ARRAY [1..MaxResWords] Of FullString;
{List of reserved (key)words
LISTE DER RESERVIERTEN WORTE}
RESSY: ARRAY [1..MaxResWords] Of SYMBOL; {Symbol different
reserved words means
TYPENLISTE DER
RESERVIERTEN WORTE}
PIX,
CommentNest, {Nesting level of comments }
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}
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}
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 LINES PRINTED THIS 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 2 are only used by DEC timesharing operating systems
{ DEV,UIC: : PACKED ARRAY [1..20] Of CHAR} (*** C7 ***)
FILENAME: FullString;
End;
// file extensions: pascal, listing, cross-reference
PAS,NUE,CRL:string[3];
// IOS only used on DEC 10
{ /IOS: SET OF IOSPEC; }
// used as argument to rewrite
BUFFER: FullString; {INPUT BUFFER (147 CHARACTERS =
MAX. LENGTH SOS LINE)
EINGABEPUFFER (147 ZEICHEN =
MAX. LAENGE SOS-ZEILE)}
LINENB : string[5]; {SOS LINE NUMBER
SOS-ZEILENNUMMER}
TIMEANDDAY : fullstring; {DATE AND TIME FOR PRINT PAGE HEAD
DATUM UND UHRZEIT FUER DRUCKSEITENKOPF}
SY : FullString; {Current identifier
LETZTER GELESENER BEZEICHNER}
SYTY : SYMBOL; {Symbol type
TYP DES LETZTEN GELESENEN ZEICHENS}
PAGEEJECT, {
MARKER FOR PAGE SHIFT} (*** C5 ***)
ERRFLAG, {
FEHLERMARKE}
OLDSPACES, {
GESETZT WENN LASTSPACES BENUTZT WERDEN SOLL}
EOB : BOOLEAN; {Indicates end of file
EOF-MARKE}
CH, {Current character
LETZTES GELESENES ZEICHEN}
BMARKTEXT, {
TEXT ZUR MARKIERUNG VON 'BEGIN' ETC.}
EMARKTEXT: CHAR; {
TEXT ZUR MARKIERUNG VON 'END' ETC.}
DELSY : ARRAY [' '..'_'] Of SYMBOL; {Delimiters
TYPENARRAY FUER DELIMITERZEICHEN}
ALPHANUM, {Legal chatacters for second and later chats
in an identifier
ZEICHEN VON 0..9 UND A..Z}
DIGITS, {'0'..'9'
ZEICHEN VON 0..9}
LETTERS : SET Of CHAR; {Legal as first char in identifier
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, {
AUSGABEFILE AUF DEM DAS NEUFORMATIERTE PROGRAMM STEHT}
InFile,
CrefFile,
TTY: text; // originally used as output filr, now use OUTPUT
MESSAGE : string[23]; {Error message text
ARRAY ZUR AUSGABE DER SCHLUSSMELDUNG}
Procedure INIT;
var RC: Integer;
Begin
Begin
{ RESNUM[1] := 1; // Location in array of first reserved word with
RESNUM[2] := 1; // having two characters, and each additional one ia
RESNUM[3] := 7; // for words with one less character. There should be
RESNUM[4] := 15; // s way to do this automatically. And there is...
RESNUM[5] := 26;
RESNUM[6] := 32;
RESNUM[7] := 38;
RESNUM[8] := 41;
RESNUM[9] := 42;
RESNUM[10] := 43;
RESNUM[11] := 44; }
// Automatic initialization; no counting, always right, and adding new
// keywords is trivial!
RC := 0;
// two-letter keywords
Inc(RC); RESLIST[RC] := 'IF'; RESSY[RC] := IFSY; RESNUM[1] := RC;
Inc(RC); RESLIST[RC] := 'TO'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'OF'; RESSY[RC] := OFSY;
Inc(RC); RESLIST[RC] := 'IN'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'DO'; RESSY[RC] := DOSY;
Inc(RC); RESLIST[RC] := 'OR'; RESSY[RC] := OTHERSY;
// three-letter keywords
Inc(RC); RESLIST[RC] := 'END'; RESSY[RC] := ENDSY; RESNUM[2] := RC;
Inc(RC); RESLIST[RC] := 'FOR'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'SET'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'AND'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'NOT'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'VAR'; RESSY[RC] := VARSY;
Inc(RC); RESLIST[RC] := 'NIL'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'DIV'; RESSY[RC] := OTHERSY;
// fout-letter keywords
Inc(RC); RESLIST[RC] := 'LOOP'; RESSY[RC] := LOOPSY; RESNUM[3] := RC;
Inc(RC); RESLIST[RC] := 'CHAR'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'GOTO'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'THEN'; RESSY[RC] := THENSY;
Inc(RC); RESLIST[RC] := 'ELSE'; RESSY[RC] := ELSESY;
Inc(RC); RESLIST[RC] := 'WITH'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'CASE'; RESSY[RC] := CASESY;
Inc(RC); RESLIST[RC] := 'REAL'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'FILE'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'TYPE'; RESSY[RC] := TYPESY;
Inc(RC); RESLIST[RC] := 'EXIT'; RESSY[RC] := USESSY;
Inc(RC); RESLIST[RC] := 'UNIT'; RESSY[RC] := UNITSY;
Inc(RC); RESLIST[RC] := 'USES'; RESSY[RC] := USESSY;
// five-letter keywords
Inc(RC); RESLIST[RC] := 'BEGIN'; RESSY[RC] := BEGINSY; RESNUM[4] := RC;
Inc(RC); RESLIST[RC] := 'ARRAY'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'WHILE'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'BREAK'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'CONST'; RESSY[RC] := CONSTSY;
Inc(RC); RESLIST[RC] := 'LABEL'; RESSY[RC] := LABELSY;
Inc(RC); RESLIST[RC] := 'UNTIL'; RESSY[RC] := UNTILSY;
Inc(RC); RESLIST[RC] := 'CLASS'; RESSY[RC] := CLASSSY;
// six-letter keywords
Inc(RC); RESLIST[RC] := 'RECORD'; RESSY[RC] := RECORDSY; RESNUM[5] := RC;
Inc(RC); RESLIST[RC] := 'REPEAT'; RESSY[RC] := REPEATSY;
Inc(RC); RESLIST[RC] := 'DOWNTO'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'PACKED'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'OTHERS'; RESSY[RC] := OTHERSSY;
Inc(RC); RESLIST[RC] := 'EXTERN'; RESSY[RC] := EXTERNSY;
Inc(RC); RESLIST[RC] := 'OBJECT'; RESSY[RC] := OBJECTSY;
// seven-letter keywords
Inc(RC); RESLIST[RC] := 'INTEGER'; RESSY[RC] := OTHERSY; RESNUM[6] := RC;
Inc(RC); RESLIST[RC] := 'BOOLEAN'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'FORWARD'; RESSY[RC] := FORWARDSY;
Inc(RC); RESLIST[RC] := 'PROGRAM'; RESSY[RC] := PROGRAMSY;
Inc(RC); RESLIST[RC] := 'VIRTUAL'; RESSY[RC] := OTHERSY;
// eight-letter keywords
Inc(RC); RESLIST[RC] := 'FUNCTION'; RESSY[RC] := FUNCTIONSY; RESNUM[7] := RC;
Inc(RC); RESLIST[RC] := 'OPERATOR'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'CONTINUE'; RESSY[RC] := OTHERSY;
Inc(RC); RESLIST[RC] := 'OVERRIDE'; RESSY[RC] := OTHERSY;
// nine-letter keywords
Inc(RC); RESLIST[RC] := 'PROCEDURE'; RESSY[RC] := PROCEDURESY;RESNUM[8] := RC;
Inc(RC); RESLIST[RC] := 'INTERFACE'; RESSY[RC] := INTERFACESY;
Inc(RC); RESLIST[RC] := 'OTHERWISE'; RESSY[RC] := ELSESY;
// ten-letter keywords
Inc(RC); RESLIST[RC] := 'DESTRUCTOR'; RESSY[RC] := DESTRUCTORSY;Resnum[9] := RC;
// eleven-letter keywords
Inc(RC); RESLIST[RC] := 'CONSTRUCTOR'; RESSY[RC] := CONSTRUCTORSY; Resnum[10]:= RC;
// twelve- and thirteen-letter keywords
Resnum[11]:= RC; Resnum[12]:= RC;
// fourteen-letter keywords
Inc(RC); RESLIST[RC] := 'IMPLEMENTATION'; RESSY[RC] := IMPLEMENTATIONSY; Resnum[13]:= RC;
// fifteen-letter keywords
Resnum[14]:= RC;
// note: the highest number used here must be at least one higher than
// the length of the longest keyword
End;
Begin
I := 0;
BUFFLEN := 0;
BUFFMARK := 0;
BUFFERPTR := 2;
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 := LETTERS+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;
BUFFER := '';
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 (CrefFile,'TELEFON AB LM ERICSSON ',TIMEANDDAY,' ':10,
'PAGE',PAGECNT2:4 );
(*** C6 ***)
WRITELN (crefFile,'PASCAL - ',VERSION,' ':10,OUTPUTFILE.FILENAME);
(*** C6 ***)
WRITELN (crefFile);
WRITELN (crefFile);
(*** C6 ***)
PAGEEJECT := FALSE;
(*** C5 ***)
End {HEADER} ;
Procedure NEWPAGE;
Begin {NEWPAGE}
WRITEPAGE;
HEADER;
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 (crefFile,BMARKTEXT, BMARKNR : 4, ' ');
BMARKTEXT := ' ';
End
Else
If EMARKTEXT <> ' '
Then
Begin
WRITE (crefFile,' ',EMARKTEXT,EMARKNR : 4,' ');
EMARKTEXT := ' ';
End
Else WRITE (crefFile,' ');
WRITE (crefFile,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 READLINE;
Var
CH : WideCHAR;
Begin {READLINE}
Repeat
Readln(buffer);
BufferPtr := 1;
bufflen := Length(Buffer);
// handle blank lines directly
While (bufflen=0) And Not (EOF (INPUT)) Do
Begin
GETLINENR (LINENB);
If REALLINCNT = MAXLINE
Then HEADER;
LINECNT := LINECNT + 1;
REALLINCNT := REALLINCNT + 1;
WRITELN (' ' : 12,LINECNT * INCREMENT : 5);
WRITELINNR;
WRITELIN;
If MAXINC = LINECNT
Then NEWPAGE;
Readln(Buffer);
bufflen := Length(Buffer);
End;
CH := Buffer[Bufferptr];
inc(BufferPtr);
If CH = CHR(FF) Then (*** C5 ***)
NEWPAGE;
If CH < ' ' (*** C 1 ***)
Then CH := ' ';
Until (CH <> ' ') Or (EOF (INPUT));
(*** C 1 ***)
If Not (EOF (INPUT)) Then
GETLINENR (LINENB);
BUFFMARK := 0;
End {READLINE} ;
{I suspect someone cribbed part of an actual
Pascal compiler to construct this... }
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; {Index variable}
Procedure READBUFFER;
Begin {READBUFFER}
If BUFFERPTR >= BuffLen Then
Begin
WRITELINE (BUFFERPTR);
CH := ' ';
If EOF (INPUT) Then
EOB := TRUE
Else READLINE;
End
Else
Begin
BUFFERPTR := BUFFERPTR + 1;
CH := BUFFER [BUFFERPTR];
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
Chcnt,
I : INTEGER;
Begin {RESWORD}
Chcnt := Length(SY);
RESWORD := FALSE;
If (Chcnt<2) or (Chcnt > MaxResSize) then exit;
For I:=RESNUM[CHCNT] To RESNUM [CHCNT + 1] -1 Do
If RESLIST[ I ] = SY
Then
Begin
RESWORD := TRUE;
SYTY := RESSY [I];
Break; // GOTO 1;
End;
// 1:
End {RESWORD} ;
{$NOTE Remember to implrment HandleSwitches}
// process any {$ / (*$ switch
Procedure HandleSwitches(Closure: FullString);
Begin end; // This will be handled later
// handles 1 or 2 char comment blocks
// also handles nested comments
procedure ProcessComments(Closure: String = '}');
VAR
Len: Byte;
NextCh,
Ch: Widechar;
Closedby: string;
begin
// Assumption: BufferPtr is at char after start of comment, e.g.
// if comment is {X or (*X, then X marks the spot we should be at.
ClosedBy := Closure;
Inc(CommentNest);
Len := Length(ClosedBy);
Ch := Buffer[BufferPtr];
NextCh := Buffer[BufferPtr+1];
if (CH = '$') and (CommentNest = 1) then
// check for compiler switch, but not inside a nested comment
begin
HandleSwitches(Closedby); // it will eat the rest of the comment
if CommentNest < 1 then
Exit;
end;
NextCh := Buffer[BufferPtr+1];
// see if we reached closure of this comment
while ((Len=1) and (CH<>Closedby[1])) or
((Len=2) and (CH<>Closedby[1]) and
(NextCh<>Closedby[2])) do
Begin
// see if we just started a nested comment
if Ch = '{' then
ProcessComments('}')
else if (Ch = '(') and (NextCh = '*') then
ProcessComments('*)');
// Continue through this comment
Inc(BufferPtr);
if BufferPtr > BuffLen then
ReadLine;
// Get the buffer chars again
Ch := Buffer[BufferPtr];
NextCh := Buffer[BufferPtr+1];
end;
if ((Len=1) and (CH=Closedby[1])) or
((Len=2) and (CH=Closedby[1]) and
(NextCh=Closedby[2])) then
begin
Dec( CommentNest);
break;
end;
until Eof(Infile); // Ptrsumably, we exit before this
end;
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; { AAA
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);