path: root/lang/dynamo/1.8.7/src/dyn.33

(**************************************************************************)
(**************************************************************************)
(******                                                              ******)
(******                                                              ******)
(******     DYNAMO - III - ELAN  PRECOMPILER                         ******)
(******                                                              ******)
(******                                                              ******)
(******     AUTOREN :  R. Keil,                                      ******)
(******                T. Froehlich                                  ******)
(******                                                              ******)
(******     VERSION :  3.3.7                                         ******)
(******                                                              ******)
(******                                                              ******)
(******     AENDERUNGEN:                                             ******)
(******     05.10.1983                                               ******)
(******     06.05.1985 Hua&DC: forget("zzdyn.const")                 ******)
(******     08.04.1986 Ley : Anpassung an 1.7.5                      ******)
(******     02.04.1987 C.Fallis & C.Rensen  Einbettung in BOX        ******)
(******     18.05.1988 dc: Udi Katzirs changes                       ******)
(******                    should declare vector        eingeführt   ******)
(******     20.05.1988 dc: already used in loop body    eingeführt   ******)
(******                Fehlermeldung bei Ref. int index unterdrückt  ******)
(******                weil sie wahrscheinlich selbst ein Fehler ist ******) 
(******     21.07.1988 Christian Szymanski                           ******)
(******                Ausbettung aus BOX                            ******)
(******                                                              ******) 
(******                                                              ******)
(**************************************************************************)
(**************************************************************************)

 
PACKET dynamo compiler 33 DEFINES init std, dynamo, insert macro,
                                  erase, table dump, graphic:
 
(**********************  T  A  B  L  E  S  ********************************)
 
LET max tab size  = 950,
    max hash size = 300,
    library       = ""15"TAB1"14"",
    tab name      = ""15"TAB2"14"";

BOOL VAR is draw := FALSE;

TYPE TABLE  = STRUCT (ROW max tab size TEXT name, init, right part,
                      ROW max tab size INT  type, line no, pred, mac,
                                            index, index type,
                      ROW max tab size BOOL in use, idef, rdef,
                                            already used in loop body,
                                            should declare vector, 
                      (*18.5.88 dc: Änderung von Udi Katzir   *) 
                      ROW max hash size INT class,
                      INT tab size,
                          tab beg);

(* already used in loop body: is set to TRUE , if that table-element has been
   used to generate a line within a loop  --> PROC gen loop      20.5.88 dc*)

(* should declare vector : used when rows are declared and indicates if the*)
(* length of the row is to be taken from the index of the current variable *)

BOUND TABLE VAR tab;
 
PROC enter (TEXT CONST name, right part, INT CONST type of equ) :
 INT VAR tab pos;
 INT CONST hash class := hash (name);
 search (name, tab pos, lmp, equtype, hash class);
 table index := tab pos;
 enter equ.

 enter equ :
  IF not found OR subscript COR CONCR (tab).type (tabpos) = mac param
   THEN enter name
  ELIF type of equ = nequ
   THEN enter nequ
  ELIF CONCR (tab).right part (tab pos) = nt
   THEN complete nequ
   ELSE err (name, 1)
  FI.
 
 equtype :
  IF subscript
   THEN type of equ
   ELSE nil
  FI.
 
 enter name :
  CONCR (tab).tab size INCR 1;
  tab size := CONCR (tab).tab size;
  IF tab size > max tab size
   THEN errorstop ("dynamo table overflow")
  FI;
  IF type of equ = nequ
   THEN CONCR (tab).init       (tab size) := right part;
        CONCR (tab).right part (tab size) := nt
   ELSE CONCR (tab).init       (tab size) := nt;
        CONCR (tab).right part (tab size) := right part
  FI;
  init element.
 
 init element :
  CONCR (tab).name       (tab size) := name;
  CONCR (tab).type       (tab size) := type of equ;
  CONCR (tab).line no    (tab size) := line no;
  CONCR (tab).mac        (tab size) := lmp;
  CONCR (tab).index      (tab size) := nil;
  CONCR (tab).index type (tab size) := nil;
  CONCR (tab).in use     (tab size) := FALSE;
  CONCR (tab).idef       (tab size) := FALSE;
  CONCR (tab).rdef       (tab size) := FALSE;
  CONCR (tab).already used in loop body (tab size) := FALSE;
  CONCR (tab).pred       (tab size) := CONCR (tab).class (hash class);
  CONCR (tab).class    (hash class) := tab size.
 
 enter nequ :
  IF CONCR (tab).init (tab pos) <> nt
   THEN err (name, 2)
  FI;
  CONCR (tab).init (tab pos) := right part.
 
 complete nequ :
  CONCR (tab).right part (tab pos) := right part;
  CONCR (tab).type       (tab pos) := type of equ;
  CONCR (tab).line no    (tab pos) := line no.
END PROC enter;
 
PROC test (TEXT CONST name, INT VAR tab pos, INT CONST last mp, type, 
                                                       err no) :
 search (name, tab pos, last mp, type);
 IF not found
  THEN err (err no)
 FI
END PROC test;
 
PROC search (TEXT CONST name, INT VAR tab pos, INT CONST last mp, type) :
 search (name, tab pos, last mp, type, hash (name)) 
END PROC search;
 
PROC search (TEXT CONST name, INT VAR tab pos,
             INT CONST last mp, type, hash class) :
 not found := TRUE;
 tab pos := CONCR (tab).class (hash class);
 WHILE tab pos <> nil CAND name not found REP
  tab pos := CONCR (tab).pred (tab pos)
 PER.
 
 name not found :
  not found := NOT (CONCR (tab).name (tab pos) = name 
                    AND same macro AND type ok);
  not found.
 
 same macro :
  CONCR (tab).mac (tab pos) = last mp.
 
 type ok :
  type = nil OR CONCR (tab).type (tab pos) = type.
END PROC search;

PROC insert macro (TEXT CONST source) :
 dynamo (source, ""8"", FALSE);
 kill (""8"");
 IF errors = nil
  THEN kill (library);
       copy (tab name, library)
 FI
END PROC insert macro;

PROC init std (TEXT CONST std name) :
 lmp := nil;
 kill (library);
 tab := new (library);
 FOR i FROM 1 UPTO max hash size REP
  CONCR (tab).class (i) := nil
 END REP;
 CONCR (tab).tab size := nil;
 enter std procs;
 CONCR (tab).tab beg := tab size + 1.

enter std procs :
 FILE VAR std file := sequential file (input, std name);
 TEXT VAR name, params;
 WHILE NOT eof (std file) REP
  get (std file, name);
  test eof;
  IF params = "()"
   THEN params := ""
  FI;
  enter (name, params, std p)
 END REP.

 test eof :
  IF name = "/*"
   THEN LEAVE enter std procs
   ELSE get (std file, params) 
  FI.
END PROC init std;
 
PROC next sym :
 next sym (scan buf, sym, type, scan position)
END PROC next sym;
 
PROC next sym (TEXT CONST buf) :
 next sym (buf, sym, type, scan position)
END PROC next sym;
 
PROC test open bracket (TEXT CONST sym) :
 IF sym <> "("
  THEN err (sym, 6)
 FI
END PROC test open bracket;
 
PROC test closing bracket (TEXT CONST sym) :
 IF sym <> ")"
  THEN err (sym, 58)
 FI
END PROC test closing bracket;
 
PROC test bold (INT CONST err no) :
 IF type <> bold
  THEN err (err no)
 FI
END PROC test bold;
 
PROC test equal (INT CONST err no) :
 IF sym <> "="
  THEN err (err no)
 FI
END PROC test equal;
 
BOOL OP IN (TEXT CONST pattern, source) :
 pos (source, pattern) > nil.
END OP IN;
 
PROC scan (TEXT CONST buf) :
 scan buf := buf;
 scan position := 1
END PROC scan;
 
PROC err (TEXT CONST a, INT CONST b) :
 err (a, b, line no)
END PROC err;
 
PROC err (INT CONST i) :
 err (sym, i, line no)
END PROC err;
 
PROC gen (TEXT CONST a) :
 out buf CAT a
END PROC gen;
 
PROC gen (TEXT CONST a, b) :
 out buf CAT a;
 out buf CAT b
END PROC gen;
 
PROC gen (TEXT CONST a, b, c) :
 out buf CAT a;
 out buf CAT b;
 out buf CAT c
END PROC gen;
 
PROC gen (TEXT CONST a, b, c, d) :
 out buf CAT a;
 out buf CAT b;
 out buf CAT c;
 out buf CAT d
END PROC gen;
 
PROC genln (TEXT CONST a, b, c) :
 gen (a, b, c);
 lf
END PROC genln;
 
PROC lf :
 putline (target, outbuf);
 outbuf := nt
END PROC lf;
 
PROC gen ln (TEXT CONST t) :
 outbuf CAT t;
 putline (target, outbuf);
 outbuf := nt
END PROC gen ln; 
 
PROC erase (BOOL CONST b) :
 erase option := b
END PROC erase;
 
PROC dynamo (TEXT CONST s) :
 TEXT VAR target name := s + ".elan";
 dynamo (s, target name, TRUE);
 IF erase option
  THEN kill (target name)
 FI;
 last param (s)
END PROC dynamo;
 
PROC dynamo :
 dynamo (last param)
END PROC dynamo;
 
PROC graphic (BOOL CONST mode):
  is draw := NOT mode
END PROC graphic;

(**********************  C  O  M  P  I  L  E  R  ************************)
 
LET bold         = 1,    number       = 2,
    delimiter    = 3,    eol          = 4,
    aux          = 1,    rate         = 2,
    level        = 3,    nequ         = 4,
    mac name     = 6,    std p        = 7, 
    sub init     = 8,    table        = 9,
    for          = 10,   mac param    = 11,
    const        = 12,   print        = 1,
    plot         = 2,    global param = 1,
    none         = 3,    max print no = 10,
    supp         = 5,    any          = "ß";

FILE VAR source, target;
 
ROW max print no TEXT VAR print param;
 
ROW 10 TEXT VAR plot name, id;
ROW 10 INT  VAR scale pointer;
ROW 10 TEXT VAR lower bound, upper bound;
ROW 10 BOOL VAR l fixed scale, u fixed scale;
 
TEXT VAR   buffer, left part, right part, outbuf, print buf,
           headline, sym, plot buf, asterisk buffer,
           macro name, noise buffer, constant, run buffer,
           scan buf;
 
INT  VAR   print param no, print line no, tab beg, type, line no,
           plot line no, scale counter, plot param no,
           last pos, lmp, index, (* lmp = Last Macro Position *)
           index type, for index, i, tab size, expansion no,
           table index, scan position, old tab beg;
 
BOOL VAR   k, kl, is first, fixed scale, in macro,
           in loop, not found, internal, subscript,
           erase option := FALSE;
 
TEXT CONST nt := "";

INT CONST  nil := 0;
 

(*$$$$$$$$$$ ZUSATZ C & C 20.2.87 eingefuegt : error listing $$$$$$$$$*)
(* Diese Prozedur erzeugt einen zweigeteilten Bildschirm, wobei       *)
(* die Datei 'procsource' (d.h. das Dynamo-Quellprogramm) in der      *)
(* oberen Haelfte und die Fehlerdatei 'notebook' in der unteren       *)
(* Haelfte steht.       *)

PROC error listing (FILE VAR procsource) :     (* C.S. 21.07.88 *)
 note edit (procsource);
END PROC error listing;
(*$$$$$$$$$$$$$$$$$$$$ ENDE ZUSATZ $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$*)


PROC dynamo (TEXT CONST source name, target name, BOOL CONST pass2) :
 init dynamo;
 first pass;
 IF no errors
    THEN second pass
    ELSE error listing(source);
         error stop ("")                   (* C.S. 21.07.88 *)
 (* Falls Fehler im ersten Durchlauf gefunden wurden, wird der zweite  *)
 (* Durchlauf erst gar nicht durchgefuehrt, sondern das fehlerhafte    *)
 (* Dynamo-Programm und die Fehlerdatei werden ausgegeben .            *)
 FI.
 
 first pass :
  WHILE NOT eof (source) REP
   read source line;
   translate line
  PER;
  IF NOT pass2
   THEN LEAVE dynamo
  FI;
  end of first pass.
 
 second pass :
  generate initializations;
  generate equations.
 
 generate initializations :
  generate rts call;
  generate noise card;
  generate table part;
  generate for variables;
  generate variable part;
  generate table init;
  generate init print;
  generate init plot;
  generate init scale;
  generate asterisk;
  gen repeat.
 
 generate equations :
  generate print line;
  generate plot line;
  gen equations (level);
  gen equations (aux);
  gen equations (supp);
  gen equations (rate);
  gen end repeat;
  IF no errors
   THEN run (target name)
   ELSE error listing(source);
        error stop ("")                   (* C.S. 21.07.88 *)
 (* Falls im zweiten Durchlauf Fehler gefunden wurden, wird das     *)
 (* ELAN-Zielprogramm nicht ausgefuehrt, sondern das fehlerhafte    *)
 (* Dynamo-Quellprogramm und die Fehlerdatei werden ausgegeben .    *)
 FI.
 
 init dynamo :
  kill (target name);
  init tables;
  source          := sequential file (input,  source name);
  target          := sequential file (output, target name);
  print buf       := nt;
  outbuf          := nt;
  plot buf        := nt;
  noise buffer    := nt;
  asterisk buffer := nt;
  macro name      := nt;
  run buffer      := "zzdyn";
  line no         := nil;
  plot param no   := nil;
  last pos        := nil;
  lmp             := nil;
  index           := nil;
  index type      := nil;
  expansion no    := nil;
  in macro        := FALSE;
  internal        := FALSE;
  in loop         := FALSE;
  is first        := TRUE;
  tab beg         := CONCR (tab).tab beg;
  old tab beg     := CONCR (tab).tab size + 1;
  init errors.
 
 init tables :
  kill (tab name);
  copy (library, tab name);
  tab := old (tab name).
 
 read source line :
  line no INCR 1;
  getline (source, buffer);
  cout (line no);
  scan (buffer);
  next sym.
 
 translate line :
  TEXT VAR start := sym;
  next sym;
  WHILE sym = " " REP next sym PER;
  SELECT
   pos ("a c l n r print plot note EOL spec * x macro mend for s noise run ",
        start + " ") OF
   CASE 1      : enter equ (TRUE,  FALSE, aux,   9)
   CASE 3, 31  : constant equ
   CASE 5      : enter equ (TRUE,  FALSE, level, 11)
   CASE 7      : enter equ (FALSE, FALSE, nequ,  56)
   CASE 9      : enter equ (FALSE, TRUE,  rate,  12)
   CASE 11     : print card
   CASE 17     : plot card
   CASE 22, 27 : (* comment; empty line *)
   CASE 36     : gen headline
   CASE 15     : enter equ (FALSE, FALSE, table, 13)
   CASE 38     : continuation card
   CASE 40     : macro card
   CASE 46     : macro end
   CASE 51     : for card
   CASE 55     : enter equ (TRUE, FALSE, supp, 9)
   CASE 57     : noise card
   CASE 63     : run card
   OTHERWISE   : err (start, 3)
  END SELECT.
 
 macro card :
  IF in macro
   THEN err (4)
  FI;
  in macro := TRUE;
  get macro name;
  get macro param list.
 
 get macro name :
  IF type = bold
   THEN enter (sym, nt, mac name);
        CONCR (tab).line no (tab size) := nil;
        macro name := sym;
        lmp := tab size
   ELSE err (5)
  FI.
 
 get macro param list :
  next sym;
  test open bracket (sym);
  next sym;
  WHILE sym <> ")" REP
   IF type = bold
    THEN enter (sym, nt, mac param)
    ELSE err (7)
   FI;
   next sym;
   IF sym = ","
    THEN next sym
   FI
  END REP;
  test closing bracket (sym).
 
 macro end :
  lmp := nil;
  in macro := FALSE.
 
 constant equ :
  REP
   analyze constant equ;
   enter (left part, constant, const);
   last pos := tab size
  UNTIL end of constants PER.
 
 analyze constant equ :
  test bold (10);
  left part := sym;
  next sym;
  test equal (21);
  get constant.
 
 end of constants :
  next sym;
  test delimiter.
 
 get constant :
  next sym;
   IF  NOT sym is number (constant)
   THEN err (37)
  FI.
 
 print card :
  IF print buf = nt
   THEN print buf := subtext (buffer, scanposition - length (sym));
        print line no := line no
   ELSE print buf CAT "," + subtext (buffer, scanposition - length (sym))
  FI;
  last pos := print.
 
 plot card :
  IF plot buf = nt
   THEN plot buf := subtext (buffer, scanposition - length (sym));
        plot line no := line no;
   ELSE plot buf CAT "/" + subtext (buffer, scanposition - length (sym))
  FI;
  last pos := plot.
 
 gen headline :
  asterisk buffer := "asterisk (""" + subtext (buffer, 3) + """);".
 
 generate asterisk :
  IF asterisk buffer <> nt
   THEN genln (asterisk buffer)
  FI.
 
 continuation card :
  skip blanks;
  TEXT CONST tail := subtext (buffer, i);
  SELECT last pos OF
   CASE print : print buf CAT "," + tail
   CASE plot  : plot buf  CAT "/" + tail
   CASE none  : err (14)
   OTHERWISE  : content CAT tail
  END SELECT. 
 
 content :
  IF CONCR (tab).type (last pos) = nequ
   THEN CONCR (tab).init (last pos)
   ELSE CONCR (tab).right part (last pos)
  FI.
 
 skip blanks :
  i := 1;
  REP
   i INCR 1
  UNTIL (buffer SUB i) <> " " END REP.
 
 for card :
  REP
   read for variable
  UNTIL end of forlist END REP.
 
 end of forlist :
  IF sym = "/"
   THEN next sym; FALSE
   ELSE TRUE
  FI.
 
 read for variable :
  TEXT VAR init;          (* left part  = name *)
  test bold (15);         (* right part = obere Grenze *)
  left part := sym;       (* init       = untere Grenze *)
  next sym;
  test equal (16);
  next sym;
  pass ranges;
  enter (left part, right part, for);
  CONCR (tab).init (tab size) := init.
 
 pass ranges :
  test number (init);
  IF   sym <> ","
  THEN err (18)
  FI;
  next sym;
  test number (right part).
 
 noise card :
  IF NOT sym is number (noise buffer)
   THEN err (66)
  FI.
 
 run card :
  test bold (65);
  run buffer := sym.
 
 gen repeat :
  lf;
  genln ("WHILE time <= length REP");genln (" cout(int(time));");
  genln (" set time (time);").
 
 gen end repeat : 
  genln ("UNTIL " + draw ad + "stop request PER;");
  IF plot buf <> nt
   THEN genln (draw ad + "end of program;")
  FI;
  genln ("END PROC target program").
 
 generate rts call :
  genln ("forget (""zzdyn.const"",quiet);");
  genln ("run card (""", run buffer, """);");
  genln ("run time system (PROC target program);");
  lf;
  genln ("PROC target program :").
 
 generate noise card :
  IF noise buffer <> nt
   THEN genln (" initialize random (", noise buffer, ");")
  FI.
 
 generate plot line :
  IF plot buf <> nt
   THEN gen plots
  FI.
 
 gen plots :
  genln (draw ad + " new plot line (time);");
  FOR i FROM 1 UPTO plot param no REP
   genln (draw ad + " plot (", plot name (i), ");");
   genln ("IF " + draw ad + " stop request THEN LEAVE target program " +
          "END IF;")
  END REP.
 
 generate print line :
  IF print buf <> nt
   THEN gen prints
  FI.
 
 gen prints :
  genln (" new line (time);");
  FOR i FROM 1 UPTO print param no REP
   genln (" print (", printparam (i), ");")
  END REP.
 
 generate init plot :
  INT VAR tab pos;
  IF plot buf <> nt
   THEN search ("pltper", tab pos, nil, const);
        IF not found
         THEN IF is draw THEN
                err ("draw", 25, plot line no)
              ELSE
                err ("plot", 25, plot line no)
              END IF
         ELSE genln (draw ad + "initialize plot (""", plot buf, """);");
(*$$$$$$$$$$$$$ ZUSATZ Februar87 C&C eingefuegt: pltper INCR 0 $$$$$$$$$*)
              genln ("pltper INCR 0.0 ;");
              genln (" (* um Warnung des ELAN-Compilers zu unterdruecken *)")
(*$$$$$$$$$$$$$$$$$$$$$$$$$$ ENDE ZUSATZ $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$*)
        FI
  FI.
END PROC dynamo;
 
PROC test number (TEXT VAR content) :
 SELECT type OF
  CASE bold   : content := sym
  CASE number : content := trunc (sym)
  OTHERWISE err (17)
 END SELECT;
 next sym
END PROC test number;
 
PROC enter equ (BOOL CONST x, y, INT CONST exp type, err no) :
 get left part;
 enter (left part, right part, exp type);
 set index;
 test global;
 IF incorrect time script
  THEN err (err no)
 FI.
 
 incorrect time script :
  (k XOR x) OR (kl XOR y).
 
 set index :
  INT VAR last entry                  := table position;
  last pos                            := last entry;
  CONCR (tab).index      (last entry) := index;
  CONCR (tab).index type (last entry) := index type.
 
 table position :
  IF exp type = nequ AND index type = nil AND NOT not found
   THEN table index
   ELSE tab size
  FI.
 
 test global :
  IF in macro AND NOT internal
   THEN search global
  FI.
 
 search global :
  INT VAR tab pos;
  search (left part, tab pos, lmp, mac param);
  IF not found
   THEN IF left part <> macro name
         THEN err (left part, 64)
        FI
   ELSE CONCR (tab).index      (last entry) := tab pos;
        CONCR (tab).index type (last entry) := -1;
        CONCR (tab).index type (tab pos)    := global param;
        CONCR (tab).index      (tab pos)    := last entry
  FI.
 
 get left part :
  get name;
  get time script;
  get index.
 
 get name :
  internal := sym = "$";
  IF internal
   THEN next sym;
        IF NOT in macro
         THEN err (19)
        FI
  FI;
  test bold (20);
  left part := sym; next sym.
 
 get time script :
  IF sym = "."
   THEN process time script
   ELSE k := FALSE; kl := FALSE
  FI;
  subscript := sym = "(".
 
 get index :
  IF subscript
   THEN process index
   ELSE index := nil;
        index type := nil
  FI;
  right part := subtext (buffer, scanposition);
  test equal (21).
 
 process time script :
  next sym;
  k := sym = "k"; kl := sym = "kl";
  next sym.
 
 process index :
  next sym;
  SELECT type OF
   CASE number : index := int (sym)
   CASE bold   : search for variable
   OTHERWISE   : err (22)
  END SELECT;
  index type := type;
  next sym;
  test closing bracket (sym);
  next sym.
 
 search for variable :
  test (sym, tab pos, lmp, for, 61);
  index := tab pos.
END PROC enter equ;
 
PROC end of first pass :
 INT VAR tab pos;
 init time;
 search macro calls;
 search system constants.
 
 init time :
  search ("time", tab pos, nil, nequ);
  IF not found
   THEN enter ("time", "0.0", nequ)
  FI; 
  enter ("time", "time.j+dt", level).
 
 search system constants :
  sym := nt;
  test ("dt", tab pos, nil, const, 35);
  test ("length", tab pos, nil, const, 36).
 
 search macro calls :
  INT VAR old tabsize := tabsize;
  FOR i FROM old tabbeg UPTO old tabsize REP
   IF is normal equ
    THEN enter global macro params
   FI
  END REP;
  tab size := old tabsize.
 
 is normal equ :
  SELECT CONCR (tab).type (i) OF
   CASE aux, rate, level, nequ, supp : TRUE
   OTHERWISE                         : FALSE
  END SELECT.
 
 enter global macro params :
  enter params (CONCR (tab).right part (i), FALSE);
  enter params (CONCR (tab).init (i), TRUE).
END PROC end of first pass;
 
PROC enter params (TEXT CONST buf, BOOL CONST is init) :
 TEXT VAR macro name;
 IF pos (buf, "(") > nil
  THEN read params
 FI.
 
 read params :
  scan position := 1;
  REP
   next sym (buf, macro name, type, scan position);
   IF type = bold
    THEN next sym (buf);
         IF sym = "("
          THEN parameter list
         FI
   FI
  UNTIL type = eol END REP.
 
 parameter list :
  INT VAR act param, tab pos;
  search (macro name, tab pos, nil, nil);
  IF NOT not found CAND CONCR (tab).type (tab pos) = mac name
   THEN read param list
  FI.
 
 read param list :
  CONCR (tab).index type (tab pos) INCR 1;
  act param := tab pos;
  REP
   next sym (buf);
   act param INCR 1;
   IF CONCR (tab).type (act param) = mac param
    THEN test parameter
    ELSE err (macro name, 53)
   FI
  UNTIL end of parameter list END REP.
 
 test parameter :
  TEXT VAR param;
  IF CONCR (tab).index type (act param) = global param
   THEN get global param
   ELSE get actual param
  FI;
  content CAT param + "%".
 
 content :
  IF is init
   THEN CONCR (tab).init (act param)
   ELSE CONCR (tab).right part (act param)
  FI.
 
 get global param :
  INT VAR param index;
  IF type = bold
   THEN enter param
  FI.
 
 enter param :
  param index := CONCR (tab).index (act param);
  enter (sym, CONCR (tab).right part (param index),
              CONCR (tab).type (param index));
  CONCR (tab).init  (tab size) := CONCR (tab).init (param index);
  CONCR (tab).index (tab size) := act param;
  param := sym;
  next sym (buf);
  get time script.

 get actual param :
  INT VAR brackets := nil;
  param := nt;
  REP
   param CAT sym;
   next sym (buf);
   get time script
  UNTIL end of param END REP.
 
 get time script :
  IF sym = "."
   THEN param CAT sym;
        next sym (buf);
        param CAT any;
        next sym (buf)
  FI.

 end of param :
  IF brackets = nil
   THEN sym IN ",)"
  ELIF sym = "("
   THEN brackets INCR 1;
        FALSE
  ELIF sym = ")"
   THEN brackets DECR 1;
        TRUE
   ELSE FALSE
  FI.
 
 end of parameter list :
  SELECT pos (",)", sym) OF
   CASE 1    : FALSE
   CASE 2    : TRUE
   OTHERWISE : err (50); TRUE
  END SELECT.
END PROC enter params;

(*************************  P  A  S  S   2  ***************************)
 
PROC generate init print :
 INT VAR tab pos;
 IF print buf <> nt
  THEN test ("prtper", tab pos, nil, const, 24);
       gen init
 FI.
 
 gen init :
  print param no := nil;
  headline := nt;
  scan (print buf);
  line no := print line no;
  cout (line no);
  REP
   get parameter
  UNTIL sym <> "," END REP;
  genln ("initialize print (""", headline, """);");
  (*$$$$$$$$$$$$$ ZUSATZ Februar87 C&C eingefuegt: prtper INCR 0 $$$$$$$$$$*)
  genln ("prtper INCR 0.0 ;");
  genln ("(* Um Warnung des ELAN-Compilers zu unterdruecken *)").
  (*$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ ENDE ZUSATZ $$$$$$$$$$$$$$$$$$$$$$$*)
 get parameter :
  next sym;
  test bold (33);
  get print param.
 
 get print param :
  test (sym, tab pos, nil, nil, 32);
  enter name.
 
 enter name :
  TEXT VAR act param := sym;
  INT VAR pos := scanposition - length (sym);
  test subscript (act param, 33);
  print param no INCR 1;
  print param (print param no) := act param;
  headline CAT text (subtext (print buf, pos, scanposition - 1), 13);
  headline CAT " ".
END PROC generate init print;
 
PROC test subscript (TEXT VAR act param, INT CONST err no) :
 INT VAR tab pos;
 next sym;
 IF sym = "("
  THEN test index
 FI.
 
 test index :
  next sym;
  act param CAT " SUB ";
  act param CAT subscript;
  next sym;
  test closing bracket (sym);
  next sym.
 
 subscript :
  SELECT type OF
   CASE number : trunc (sym)
   CASE bold   : search index
   OTHERWISE   : err (err no); nt
  END SELECT.
 
 search index :
  test (sym, tab pos, nil, for, 61);
  sym.
END PROC test subscript;
 
PROC generate init scale :
 IF plot buf <> nt
  THEN gen plot card
 FI.
 
 gen plot card :
  scale counter := 1;
  plot param no := nil;
  line no := plot line no;
  cout (line no);
  scan (plot buf);
  REP
   equal scale;
   different scale
  UNTIL type = eol OR sym = " " END REP;
  generate scales.
 
 equal scale :
  fixed scale := FALSE;
  REP
   next sym;
   single scale param
  UNTIL sym <> "," END REP.
 
 different scale :
  IF sym = "/"
   THEN scale counter INCR 1
  ELIF type <> eol
   THEN err (sym, 26, plot line no)
  FI.
 
 generate scales :
  clear scales;
  gen plot scales.
 
 gen plot scales :
  FOR i FROM 1 UPTO plot param no REPEAT
   gen (draw ad + "plot scale (""", id (i), """, ",
        text (scale pointer (i)));
   gen (", ", lower scale, ", ", upper scale);
   gen (", ", text (l fixed scale (i)), ", ", text (u fixed scale (i)));
   genln (");")
  END REP.
 
 lower scale :
  IF l fixed scale (i)
   THEN lower bound (i)
   ELSE "9.0e126"
  FI.
 
 upper scale :
  IF u fixed scale (i)
   THEN upper bound (i)
   ELSE "-9.0e126"
  FI.
 
 clear scales :
  FOR i FROM scale counter+1 UPTO plot param no REP
   lower bound (i) := "0.0";
   upper bound (i) := "0.0"
  PER.
 
 single scale param :
  test bold (27);
  enter plot param.
 
 enter plot param :
  TEXT VAR param := sym;
  test subscript (param, 22);
  plot param no INCR 1;
  IF plot param no > 10
   THEN err (64);
        LEAVE generate init scale
  FI;
  plot name (plot param no) := param;
  scalepointer (plot param no) := scalecounter;
  set id;
  set scale.
 
 set id :
  IF sym = "="
   THEN next sym;
        id (plot param no) := (sym SUB 1);
        next sym
   ELSE id (plot param no) := text (plot param no - 1)
  FI.
 
 set scale :
  IF sym = "("
   THEN get plot scale;
        fixed scale := TRUE
   ELIF NOT fixed scale
    THEN l fixed scale (scale counter) := FALSE;
         u fixed scale (scale counter) := FALSE;
  FI.
 
 get plot scale :
  IF fixed scale
   THEN err (28)
  FI;
  read scale param (lower bound, l fixed scale, 29);
  IF sym <> ","
   THEN err (30)
  FI;
  read scale param (upper bound, u fixed scale, 30);
  test closing bracket (sym);
  next sym.
END PROC generate init scale;
 
PROC read scale param (ROW 10 TEXT VAR bound, ROW 10 BOOL VAR fixed scale, 
                       INT CONST err no) :
 TEXT VAR scale;
 INT VAR tab pos;
 next sym;
 IF type = bold
  THEN test (sym, tab pos, nil, const, 61);
       bound (scale counter) := sym;
       fixed scale (scale counter) := TRUE
 ELIF sym is number (scale)
  THEN bound (scale counter) := scale;
       fixed scale (scale counter) := TRUE
 ELIF sym = "*"
  THEN fixed scale (scale counter) := FALSE
  ELSE err (err no)
 FI;
 next sym
END PROC read scale param;
 
BOOL PROC sym is number (TEXT VAR constant) :
 constant := nt;
 IF sym IN "+-"
  THEN constant := sym; next sym
 FI;
 IF type = number
  THEN constant CAT sym;
       TRUE
  ELSE FALSE
 FI
END PROC sym is number;
 
PROC gen equations (INT CONST equ type) :
 INT  VAR i;
 gen normal equs;
 end of init list;
 gen index equs.
 
 gen normal equs :
  FOR i FROM tabbeg UPTO tabsize REP
   IF is normal equ
    THEN generate equ
   FI
  END REP.
 
 generate equ :
  declare variables (i, equ type, FALSE).
 
 is normal equ :
  CONCR (tab).type (i) = equ type
  AND NOT CONCR (tab).rdef (i) AND CONCR (tab).index type (i) <= nil
  AND NOT CONCR (tab).already used in loop body(i).

 gen index equs :
  FOR i FROM tabbeg UPTO tabsize REP
   IF is index equ
    THEN gen loop (i, equ type)
   FI
  END REP.
 
 is index equ :
  CONCR (tab).type (i) = equ type AND
  NOT CONCR (tab).rdef (i) AND CONCR (tab).index type (i) > nil
  AND NOT CONCR (tab).already used in loop body(i).

END PROC gen equations;
 
PROC gen loop (INT CONST i, equ type) :
 for index := CONCR (tab).index (i);
 TEXT VAR gen buf;
 SELECT CONCR (tab).index type (i) OF
  CASE bold   : gen for loop
  CASE number : generate replace
 END SELECT.
 
 generate replace :
  INT VAR k := i;
  expression (equ type, gen buf, k);
  gen replace (gen buf, k, text (for index)).
 
 gen for loop :
  gen (" FOR ", CONCR (tab).name (for index), " FROM ",
                CONCR (tab).init (for index));
  genln (" UPTO ", CONCR (tab).right part (for index), " REP");
  in loop := TRUE;
  IF equ type = sub init
   THEN gen replace (equ type, i)
   ELSE search equal indices
  FI;
  in loop := FALSE;
  genln (" PER;").
 
 search equal indices :
  INT VAR j;
  FOR j FROM i UPTO tab size REP
   IF is same index
    THEN gen replace (equ type, j);
         CONCR (tab).already used in loop body(j):=TRUE
   FI
  END REP.
 
 is same index :
  for index                      = CONCR (tab).index (j)
  AND CONCR (tab).index type (j) = bold
  AND CONCR (tab).type (j)       = CONCR (tab).type (i)
  AND NOT CONCR (tab).rdef (j)
  AND NOT CONCR (tab).already used in loop body(j).

END PROC gen loop;
 
PROC gen replace (TEXT VAR gen buf, INT CONST table index) :
 gen replace (gen buf, table index, CONCR (tab).name (for index))
END PROC gen replace;
 
PROC gen replace (TEXT VAR gen buf, INT CONST table index, TEXT CONST index):
 gen (" replace (", CONCR (tab).name (table index), ", ", index);
 genln (", ", gen buf, ");")
END PROC gen replace;
 
PROC gen replace (INT CONST equ type, tabpos) :
 INT VAR no := tab pos;
 TEXT VAR gen buf;
 expression (equ type, gen buf, no);
 gen replace (gen buf, no)
END PROC gen replace;
 
PROC generate for variables :
 is first := TRUE;
 FOR i FROM tab beg UPTO tab size REP
  IF CONCR (tab).type (i) = for
   THEN gen for var
  FI
 END REP;
 end of init list.
 
 gen for var :
  set line no (i);
  IF is first
   THEN gen ("INT VAR  ");
        is first := FALSE
   ELSE continue init list
  FI;
  gen (CONCR (tab).name (i)).
END PROC generate for variables;
 
PROC generate variable part :
 generate constants;
 generate variables;
 generate missed inits.
 
 generate constants :
  INT VAR i;
  FOR i FROM tab beg UPTO tabsize REP
   IF CONCR (tab).type (i) = const AND NOT CONCR (tab).idef (i)
    THEN gen const
   FI
  END REP.
 
 generate variables :
  FOR i FROM tab beg UPTO tab size REP
   SELECT CONCR (tab).type (i) OF
    CASE level, aux, nequ, rate : gen normal equ
   END SELECT
  END REP.
 
 generate missed inits :
  FOR i FROM tab beg UPTO tab size REP
   SELECT CONCR (tab).type (i) OF
    CASE aux, rate : gen missed init
   END SELECT;
  END REP;
  end of init list.
 
 gen missed init :
  IF sub init necessary
   THEN declare variables (i, sub init, TRUE)
  FI.
 
 sub init necessary :
  CONCR (tab).init (i) = nt AND
  NOT CONCR (tab).idef (i) AND CONCR (tab).index type (i) <= nil.
 
 gen normal equ :
  IF equ not yet declared
   THEN declare variables (i, nequ, TRUE)
  FI.
 
 equ not yet declared :
  NOT CONCR (tab).idef (i) AND CONCR (tab).init (i) <> nt
  AND CONCR (tab).index type (i) <= nil.
 
 gen const :
  gen linefeed;
  gen (" ");
  gen zz (i);
  gen (CONCR (tab).name (i), " := ", "constant (""", CONCR (tab).name (i));
  gen (""", ", CONCR (tab).right part (i), ")").
END PROC generate variable part;
 
PROC end of init list :
 IF NOT is first
  THEN is first := TRUE;
       genln (";")
 FI
END PROC end of init list;
 
PROC gen zz (INT CONST no) :
 IF CONCR (tab).mac (no) > nil
  THEN gen ("zz", CONCR(tab).name (CONCR(tab).mac (no)), text (expansion no))
 FI
END PROC gen zz;
 
PROC declare variables (INT CONST no, equ type, BOOL CONST is init) :
 INT VAR mac no := CONCR (tab).mac (no);
 IF mac no > nil
  THEN gen local equs
  ELSE declare variable (no, equ type, is init)
 FI.
 
 gen local equs :
  INT VAR no of expansions := CONCR (tab).indextype (mac no);
  FOR expansion no FROM 1 UPTO no of expansions REP
   declare variable (no, equ type, is init)
  END REP.
END PROC declare variables;
 
PROC declare variable (INT CONST no, exp type, BOOL CONST init) :
 TEXT VAR gen buf;
 INT VAR i := no;
 IF (init AND NOT CONCR (tab).idef (no)) OR
    (NOT init AND NOT CONCR (tab).rdef (no))
  THEN gen equ
 FI.

gen equ :
 expression (exp type, gen buf, i);
 IF init
  THEN gen linefeed
 FI;
 gen (" ");
 gen zz (i);
 gen (CONCR (tab).name (i), " := ", gen buf);
 IF NOT init
  THEN genln (";")
 FI
END PROC declare variable;
 
PROC gen linefeed :
 IF is first
  THEN is first := FALSE;
       gen ("REAL VAR ")
  ELSE continue init list
 FI
END PROC gen linefeed;
 
PROC set line no (INT CONST index) :
 line no := CONCR (tab).line no (index);
 cout (line no)
END PROC set line no;
 
PROC continue init list :
 genln (","); gen ("         ");
END PROC continue init list;
 
PROC gen tab var :
 IF is first
  THEN gen ("TAB VAR "); is first := FALSE
  ELSE continue init list
 FI
END PROC gen tab var;
 
PROC generate table part :
 is first := TRUE;
 FOR i FROM tabbeg UPTO tabsize REP
  SELECT CONCR (tab).type (i) OF
   CASE table :            gen tab declaration;
                           gen tab init
   CASE aux, rate, level : IF CONCR (tab).index type (i) = bold
                            THEN
                             IF CONCR(tab).type(i)=aux THEN 
                                IF NOT CONCR(tab).should declare vector(i)
                                   THEN  
                                   find maximum index for current variable 
                                 FI; 
                                 IF CONCR(tab).should declare vector(i)
                                   THEN  
                                    gen row init 
                                 FI   
                              ELSE
                                  gen row init
                              FI            (*18.5.88 dc*)
                           FI
  END SELECT
 END REP;
 end of init list.
 
gen tab declaration :
 gen tab var;
 gen (CONCR (tab).name (i), " := vector (", vec length);
 genln (");");
 is first := TRUE.
 
gen tab init :
 INT VAR elem no := 1;
 scan (CONCR (tab).right part (i)); next sym;
 set line no (i);
 WHILE type is number REP
  gen ("replace (", CONCR (tab).name (i), ", ", text (elem no));
  genln (", ", constant, ");");
  next sym;
  elem no INCR 1
 UNTIL end of constant list END REP.
 
 type is number :
  IF sym is number (constant)
   THEN TRUE
   ELSE err (40); FALSE
  FI.
 
 end of constant list :
  test delimiter.
 
 vec length :
  INT VAR p, l := 1;
  FOR p FROM 2 UPTO length (CONCR (tab).right part (i)) REP
   IF (CONCR (tab).right part (i) SUB p) IN ",/"
    THEN l INCR 1
   FI
  PER; text (l).
 
 gen row init :
  gen tab var;
  gen (CONCR (tab).name (i), " := vector (", row length, ")").
 
 row length :
  set line no (i);
  CONCR (tab).right part (CONCR (tab).index (i)).

 find maximum index for current variable:
   INT VAR maximum, place, k; 
   TEXT VAR name::CONCR(tab).name(i); 
   maximum:=int(CONCR(tab).right part(CONCR(tab).index(i))); 
   place:=i; 
   FOR k FROM tabbeg UPTO tabsize REPEAT 
       check maximum of index and change if needed; 
       CONCR(tab).should declare vector(k):=FALSE 
   PER;
   CONCR(tab).should declare vector(place):=TRUE. 
  
check maximum of index and change if needed: 
   IF same variable CAND need to change 
      THEN 
         maximum:=int(CONCR(tab).right part(CONCR(tab).index(k))); 
         place:=k 
   FI. 

need to change: 
      maximum < int(CONCR(tab).right part(CONCR(tab).index(k))). 
   
same variable: 
      name =CONCR(tab).name(k)  CAND CONCR(tab).index type(k) = 1. 
   
 
END PROC generate table part;
 
BOOL PROC test delimiter :
 SELECT pos ("/, EOL", sym) OF
  CASE 1, 2 : next sym; FALSE
  CASE 3, 4 : TRUE
  OTHERWISE : err (62); TRUE
 END SELECT
END PROC test delimiter;
 
PROC generate table init :
 INT VAR i, tab pos;
 FOR i FROM tabbeg UPTO tabsize REP
  IF CONCR (tab).index type (i) > nil AND NOT CONCR (tab).idef (i)
   THEN gen tab init
  FI
 END REP.
 
 gen tab init :
  SELECT CONCR (tab).type (i) OF
   CASE nequ      : gen loop (i, nequ)
   CASE aux, rate : gen missed table init
   CASE mac name  : CONCR (tab).line no (i) := nil
  END SELECT.
 
 gen missed table init :
  search (CONCR (tab).name (i), tab pos, nil, nequ);
  IF not found
   THEN gen loop (i, sub init)
  FI.
END PROC generate table init;
 
PROC sort equ (INT CONST tab pos, equ type) :
 IF in loop
  THEN gen replace (equ type, tab pos)
  ELSE declare variable (tab pos, equ type, equ type = nequ OR
                                            equ type = sub init)
 FI
END PROC sort equ;
 
PROC expression (INT CONST equtype, TEXT VAR gen buf, INT VAR no) :
 TEXT VAR symbol, buf := equation;
 INT VAR spos := 1, stype, tabpos;
 gen buf := nt;
 set line no (no);
 test global equ;
 compile equ;
 IF CONCR (tab).mac (no) = nil
    COR expansion no >= CONCR (tab).index type (CONCR (tab).mac (no))
  THEN set def flag
 FI.

 test global equ :
  IF CONCR (tab).index type (no) < nil
   THEN replace global mac param
  FI.
 
 replace global mac param :
  INT CONST param index := CONCR (tab).index (no);
  search (actual parameter (CONCR (tab).rightpart (paramindex)),
          tabpos, nil, nil);
  no := tabpos;
  expression (type of param, gen buf, no);
  LEAVE expression.
 
 type of param :
  IF equ type = sub init
   THEN CONCR (tab).type (no)
   ELSE equ type
  FI.
 
 compile equ :
  IF CONCR (tab).in use (no)
   THEN err (CONCR (tab).name (no), 43)
   ELSE pass expression
  FI.
 
 pass expression :
  CONCR (tab).in use (no) := TRUE;
  expression2 (equtype, no, spos, stype, genbuf, symbol, buf);
  CONCR (tab).in use (no) := FALSE.
 
 equation :
  IF equtype = nequ
   THEN CONCR (tab).init (no)
   ELSE CONCR (tab).right part (no)
  FI.
 
 set def flag :
  SELECT equtype OF
   CASE nequ, sub init : CONCR (tab).idef (no) := TRUE
   CASE level          : test level
   OTHERWISE           : CONCR (tab).rdef (no) := TRUE
  END SELECT.

 test level :
  IF CONCR (tab).init (no) = nt AND CONCR (tab).index type (no) = nil
   THEN err (CONCR (tab).name (no), 39)
  FI.
END PROC expression;
 
PROC expression2 (INT CONST equtype, no, INT VAR spos, stype,
                  TEXT VAR gen buf, symbol, buf) :
 next sym (buf, symbol, stype, spos);
 REP
  factor (equtype, no, spos, gen buf, buf, symbol, stype)
 UNTIL is no operator END REP.
 
 is no operator :
  IF symbol IN "+-*/"
   THEN gen buf CAT symbol;
        next sym (buf, symbol, stype, spos);
        process obelix;
        FALSE
   ELSE TRUE
  FI.
 
 process obelix :
  IF symbol = "*"
   THEN gen buf CAT symbol;
        next sym (buf, symbol, stype, spos)
  FI.
END PROC expression2;
 
TEXT PROC actual parameter (TEXT CONST params) :
 INT VAR position := nil, old position;
 FOR i FROM 1 UPTO expansion no REP
  old position := position;
  position := pos (params, "%", position + 1)
 END REP;
 subtext (params, old position + 1, position - 1).
END PROC actual parameter;
 
PROC factor (INT CONST equtype, no, INT VAR spos, TEXT VAR genbuf,
                       buf, symbol, INT VAR stype) :
 BOOL VAR dollar := symbol = "$";
 INT VAR tab pos, mac num := CONCR (tab).mac (no);
 IF dollar
  THEN next sym (buf, symbol, stype, spos)
 FI;
 SELECT stype OF 
  CASE number    : process number
  CASE bold      : process quantity
  CASE delimiter : process delimiter
  OTHERWISE      : err (symbol, 44)
 END SELECT.
 
 process number :
  gen buf CAT symbol;
  next sym (buf, symbol, stype, spos).
 
 process quantity :
  TEXT VAR name := symbol, time script;
  INT VAR old spos := spos;
  next sym (buf, symbol, stype, spos);
  IF mac num > nil
   THEN search (name, tab pos, mac num, mac param);
        IF not found
         THEN search (name, tab pos, mac num, nil);
              IF not found
               THEN search (name, tab pos, nil, nil)
              FI
        FI
   ELSE search (name, tab pos, nil, nil)
  FI;
  IF is global param
   THEN search (name, tab pos, macro number of param, nil)
  FI;
  IF not found
   THEN err (name, 46)
   ELSE test type
  FI.
 
 is global param :
  not found AND CONCR (tab).index (no) > nil
  AND CONCR (tab).index type (no) = nil.
 
 macro number of param :
  CONCR (tab).mac (CONCR (tab).index (no)).
 
 test type :
  INT VAR nop;
  BOOL VAR is equ := FALSE;
  search table entry;
  get time script;
  type := CONCR (tab).type (tab pos);
  SELECT type OF
   CASE std p     : std function
   CASE table     : (* nanu *)
   CASE mac param : replace param
   CASE mac name  : macro expansion
   CASE const     : constant
   OTHERWISE test quantity
  END SELECT;
  IF symbol = "("
   THEN test index
   ELIF is equ
    THEN gen buf CAT name
  FI.
 
 search table entry :
  IF CONCR (tab).index type (tab pos) > nil AND
     CONCR (tab).type (tab pos) = n equ
   THEN search correct table;
        IF not found
         THEN err (name, 46);
              LEAVE process quantity
        FI
  FI.
 
 search correct table :
  not found := TRUE;
  WHILE tab pos <> nil CAND table not found REP
   tab pos := CONCR (tab).pred (tab pos)
  END REP.
 
 table not found :
  not found := NOT (CONCR (tab).name (tab pos) = name
                    AND not in macro AND type ok);
  not found.
 
 not in macro :
  CONCR (tab).mac (tab pos) = nil.
 
 type ok :
  type := CONCR (tab).type (tab pos);
  type = aux OR type = rate OR type = level.
 
 test quantity :
  IF CONCR (tab).mac (tab pos) > nil
   THEN name := "zz" + CONCR (tab).name (CONCR (tab).mac (tab pos))
                + text (expansion no) + name
  FI;
  is equ := TRUE;
  SELECT equtype OF
   CASE nequ    : initialization
   CASE aux     : auxiliary
   CASE level   : level equation
   CASE sub init: substitute init
   CASE supp    : supplementary
   OTHERWISE    : rate equation
  END SELECT.
 
 get time script :
  time script := nt;
  IF symbol = "."
   THEN next sym (buf, time script, stype, spos);
        next sym (buf, symbol, stype, spos)
  FI;
  BOOL VAR is any := time script = any.

 replace param :
  buf := text (buf, old spos - 2) +
         actual param + subtext (buf, spos - 1);
  spos := old spos - 1;
  next sym (buf, symbol, stype, spos);
  factor (equtype, no, spos, genbuf, buf, symbol, stype);
  LEAVE factor.
 
 actual param :
  TEXT VAR param := actual parameter (content);
  IF param contains time script OR is number
   THEN param
   ELSE param + "." + any
  FI.
 
 param contains time script :
  (param SUB (length (param))) = any.
 
 is number :
  pos ("0123456789", param SUB (length (param))) > 0.

 content :
  IF type = nequ AND CONCR (tab).index (no) = nil
   THEN CONCR (tab).init (tab pos)
   ELSE CONCR (tab).right part (tab pos)
  FI.

 test index :
  gen buf CAT "(";
  gen buf CAT name;
  next sym (buf, symbol, stype, spos);
  gen buf CAT " SUB ";
  SELECT stype OF
   CASE number : int index
   CASE bold   : var index
   OTHERWISE   : err (symbol, 48) 
   END SELECT;
  test offset;
  test closing bracket (symbol);
  gen buf CAT symbol;
  next sym (buf, symbol, stype, spos).
 
 test offset :
  next sym (buf, symbol, stype, spos);
  IF symbol IN "+-"
   THEN pass offset
  FI.
 
 pass offset :
  gen buf CAT symbol;
  next sym (buf, symbol, stype, spos);
  gen buf CAT trunc (symbol);
  IF stype <> number
   THEN err (symbol, 48) 
  FI;
  next sym (buf, symbol, stype, spos).
 
 int index :
(*IF CONCR (tab).index (no) <> int (symbol)
   THEN err (symbol, 48); 
        message("Starten Sie trotzdem das übersetzte ELAN Programm") FI;*) 
(*20.5.88 dc: hier kommt eine falsche Fehlermeldung                     *) 
  gen buf CAT trunc (symbol).
  
 var index :
  search (symbol, tab pos, mac num, for);
  gen buf CAT symbol;
  IF incorrect index
   THEN err (symbol, 48) 
  FI.
 
 incorrect index :
  not found COR CONCR (tab).name (CONCR (tab).index (no)) <> symbol.
  
 std function :
  test open bracket (symbol);
  nop := length (CONCR (tab).right part (tab pos));
  gen buf CAT (name + " (");
  IF nop > nil
   THEN pass actual params
   ELSE next sym (buf, symbol, stype, spos);
        test closing bracket (symbol)
  FI;
  next sym (buf, symbol, stype, spos);
  IF act param <> nop
   THEN err (symbol, 49)
  FI.
  
 pass actual params :
  INT VAR table pos := tab pos, act param := nil;
  REP
   act param INCR 1;
   IF (CONCR (tab).right part (table pos) SUB act param) = "t"
    THEN test if param is table
    ELSE expression2 (equtype, no, spos, stype, gen buf, symbol, buf)
   FI
  UNTIL no more params END REP.
 
 no more params :
  gen buf CAT symbol;
  SELECT pos (",)", symbol) OF
   CASE 1     : FALSE
   CASE 2     : TRUE
   OTHERWISE  : err (symbol, 50); TRUE
  END SELECT.
 
 test if param is table :
  next sym (buf, symbol, stype, spos);
  IF s type = bold
   THEN search (symbol, tab pos, mac num, nil);
        IF not found
         THEN err (symbol, 51)
         ELSE gen table
        FI
   ELSE err (symbol, 52)
  FI.
 
 gen table :
  IF CONCR (tab).type (tab pos) = table
   THEN gen buf CAT symbol;
        next sym (buf, symbol, stype, spos)
  ELIF CONCR (tab).index type (tab pos) > nil
   THEN factor (equtype, no, spos, genbuf, buf, symbol, stype)
   ELSE err (symbol, 52)
  FI.
 
 macro expansion :
  CONCR (tab).line no (tab pos) INCR 1;
  gen buf CAT "zz";
  gen buf CAT name;
  gen buf CAT text (CONCR (tab).line no (tab pos));
  gen buf CAT name;
  get actual parameters.
 
 get actual parameters :
  TEXT VAR char;
  test open bracket (symbol);
  get macro parameter list;
  next sym (buf, symbol, stype, spos).
 
 get macro parameter list :
  REP
   get act param
  UNTIL end of parameter list END REP.
 
 end of parameter list :
  SELECT pos (",)", char) OF
   CASE 1    : FALSE
   CASE 2    : TRUE
   OTHERWISE : TRUE
  END SELECT.
 
 get act param :
  INT VAR brackets := nil;
  char := buf SUB spos;
  REP
   spos INCR 1;
   char := buf SUB spos
  UNTIL end of param END REP;
  spos INCR 1.
 
 end of param :
  IF brackets = nil
   THEN char IN ",)"
  ELIF char = "("
   THEN brackets INCR 1;
        FALSE
  ELIF char = ")"
   THEN brackets DECR 1;
        FALSE
  ELSE FALSE
 FI.
 
 constant :
  is equ := TRUE;
  CONCR (tab).idef (tab pos) := TRUE.
 
 initialization :
  IF time script = nt OR is any
   THEN IF NOT CONCR (tab).idef (tab pos)
         THEN IF CONCR (tab).init (tab pos) <> nt
               THEN sort equ (tab pos, equ type)
              ELIF is sub init
               THEN sort equ (tab pos, sub init)
               ELSE err (symbol, 39)
              FI
        FI
   ELSE err (time script, 56)
  FI.
 
 is sub init :
  CONCR (tab).init (tab pos) = nt AND correct type (type).

 auxiliary :
  IF time script = aux time script OR is any
   THEN IF NOT CONCR (tab).rdef (tab pos) AND type = aux
         THEN sort equ (tab pos, equtype)
        FI
   ELSE err (time script, 57)
  FI.
 
 aux time script :
  SELECT type OF
   CASE aux, level :  "k"
   CASE rate       :  "jk"
   OTHERWISE       :  " "
  END SELECT.
 
 level equation :
  IF time script <> level time script AND NOT is any
   THEN err (time script, 59)
  FI.
 
 level time script :
  SELECT type OF
   CASE aux, level : "j"
   CASE rate       : "jk"
   OTHERWISE       : " "
  END SELECT.
 
 rate equation :
  IF time script <> rate time script AND NOT is any
   THEN err (time script, 60)
  FI.
 
 rate time script :
  SELECT type OF
   CASE aux, level : "k"
   CASE rate       : "jk"
   OTHERWISE       : " "
  END SELECT.
 
 supplementary :
  IF time script <> supp time script AND NOT is any
   THEN err (time script, 57)
  FI.
 
 supp time script :
  SELECT type OF
   CASE aux, level, supp : "k"
   CASE rate             : "jk"
   OTHERWISE             : " "
  END SELECT.
 
 substitute init :
  IF NOT CONCR (tab).idef (tab pos)
   THEN gen sub init equ
  FI.
 
 gen sub init equ :
  IF CONCR (tab).index type (tab pos) > nil
   THEN IF CONCR (tab).index type (no) = nil
         THEN process index equ
        FI
  ELIF CONCR (tab).init (tab pos) = nt
   THEN IF correct type (type) 
         THEN sort equ (tab pos, equtype)
        FI
   ELSE sort equ (tab pos, nequ)
  FI.

 process index equ :
  INT VAR table type := sub init;
  IF type <> nequ
   THEN search nequ
  FI;
  IF NOT CONCR (tab).idef (tab pos) AND correct type (type)
   THEN end of init list;
        gen loop (tab pos, table type);
        CONCR (tab).idef (tab pos) := TRUE
  FI.
 
 search nequ :
  search (CONCR (tab).name (tabpos), table pos, nil, nequ);
  IF NOT (not found CAND CONCR (tab).idef (tab pos))
   THEN type := nequ;
        tab pos := table pos;
        table type := type
  FI.
 
 process delimiter :
  genbuf CAT symbol;
  SELECT pos ("(+-", symbol) OF
   CASE 1   : process bracket
   CASE 2, 3: process monadic operator
   OTHERWISE err (symbol, 44)
  END SELECT.
 
 process bracket :
  expression2 (equtype, no, spos, stype, genbuf, symbol, buf);
  test closing bracket (symbol);
  gen buf CAT symbol;
  next sym (buf, symbol, stype, spos);
  IF symbol = "("
   THEN gen buf CAT "*";
        factor (equtype, no, spos, gen buf, buf, symbol, stype)
  FI.
 
 process monadic operator :
  next sym (buf, symbol, stype, spos);
  factor (equtype, no, spos, gen buf, buf, symbol, stype).
END PROC factor;
 
BOOL PROC correct type (INT CONST equ type) :
 SELECT equ type OF
  CASE aux, rate, nequ : TRUE
  OTHERWISE            : FALSE
 END SELECT.
END PROC correct type; 

TEXT PROC draw ad:
  IF is draw THEN "b" ELSE "" END IF
END PROC draw ad;

(*$$$$$$$$$$$$$$$ ZUSATZ Februar 87 C&C geaendert: Ausgabe "dump" $$$$$$$$*)

(* In dieser Prozedur wird eine Datei 'dump' angelegt, in der alle        *)
(* Dynamo-Standardfunktionen, Macros und die programmspezifischen         *)
(* Variablen und Konstanten eingetragen werden.                           *)

PROC table dump :
IF   exists ("dump")
THEN forget("dump",quiet)
FI;
FILE VAR dump := sequential file(output, "dump");
sysout("dump");
 FOR i FROM 1 UPTO CONCR (tab).tab size REP
  put (i);
  put ("NAM :"); put (CONCR (tab).name (i));
  put ("RP :"); put (CONCR (tab).right part (i));
  put ("INI :"); put (CONCR (tab).init (i));
  put ("IND :"); put (CONCR (tab).index (i));
  put ("IT :"); put (CONCR (tab).index type (i));
  put ("TYP :"); put (CONCR (tab).type (i));
  line;
 END REP;
sysout("")
END PROC table dump
(*$$$$$$$$$$$$$$$$$$$$ ENDE ZUSATZ $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$*)
END PACKET dynamo compiler 33