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decuslib10-05
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43,50337/21/makedf.sim
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00010 OPTIONS(/C); COMMENT DIRECTFILE-SEQ FILE CONVERSION:
00020
00030 MAKEDF - A PROGRAM TO CONVERT BETWEEN SIMULA DIRECTFILES-SEQ FILES.
00040
00050 MAKEDF is a program which converts sequential files to SIMULA
00060 directfiles and SIMULA directfiles to sequential files.
00070
00080 The sequential files can be line numbered according to DEC standard
00090 and may not contain any form feeds. The line number of the
00100 sequential file is used as location for the created directfile
00110 image. You are therefore adviced to use the line number increment 1
00120 (not 100 as is default in SOS) to avoid uneccesarily large
00130 directfiles. A file can be numbered with the increment 1 using pip:
00140 .COPY =FIL.EXT/O
00144
00146 If the file is not line-numbered, MAKEDF will assume a numbering
00148 with the increment 1.
00150
00160 When converting from directfiles to sequential files, lines
00170 beginning with "/*" in the directfile are not converted.
00180
00190 .run foa:dirseq
00200
00210 Input 'D' for directfile creation, 'S' for seqfile creation:
00220 D
00230 Give old seq file name: seq.in
00240 Give new direct file name: dirf.out
00250 This directfile already exists. Overwrite?
00260 yes
00270 Input directfile image size: 78
00280 ? No legal line number:
00290 a00003 THIS LINE HAS NO CORRECT LINE NUMBER
00300 ? No legal line number:
00310 SUCH LINES ARE NOT CONVERTED TO THE DIRECTFILE
00320
00330 .start ! Conversion back to a sequential file
00340
00350 Input 'D' for directfile creation, 'S' for seqfile creation:
00360 s
00370 Input old direct file name: dirf.out
00380 Input new sequential file name: seq.out
00390 Input directfile image size: 78
00400
00410 [END OF DIRSEQ.HLP];
00420
00430 BEGIN
00440 EXTERNAL INTEGER PROCEDURE rename;
00450 EXTERNAL REF (infile) PROCEDURE findinfile;
00470 EXTERNAL INTEGER PROCEDURE maxint, scanint;
00480 EXTERNAL PROCEDURE exit;
00490 EXTERNAL BOOLEAN PROCEDURE numbered;
00500 EXTERNAL TEXT PROCEDURE conc;
00510 REF (infile) inf; TEXT inf_name;
00520 REF (directfile) dirf; TEXT dirf_name;
00530 REF (outfile) outf; TEXT outf_name;
00540 BOOLEAN todirectfile;
00550 INTEGER linelength, location; TEXT linelt, buffer;
00560 CHARACTER c, tab; TEXT tabpos, twochars;
00565 BOOLEAN infnumbered;
00570
00580 PROCEDURE get_linelength;
00583 BEGIN
00587 again:
00591 outtext("Input directfile image size: "); breakoutimage;
00600 inimage; linelt:- copy(sysin.image.strip);
00610 linelength:= scanint(linelt);
00612 IF linelt.pos = 1 THEN
00614 BEGIN outtext("?Illegal number"); outimage;
00615 GOTO again;
00618 END;
00620 END;
00630
00640 PROCEDURE dfcreate;
00650 BEGIN
00660 outtext("Give old seq file name: "); breakoutimage;
00670 inimage; inf_name:- copy(sysin.image.strip);
00680 outtext("Give new direct file name: "); breakoutimage;
00690 inimage; dirf_name:- copy(sysin.image.strip);
00700 inf:- findinfile(dirf_name);
00710 IF inf =/= NONE THEN
00720 BEGIN outtext("This directfile already exists. Overwrite?");
00730 outimage; inimage; c:= inchar;
00740 IF c NE 'Y' AND c NE 'y' THEN exit(0);
00750 IF rename(inf,NOTEXT,FALSE) > -1 THEN
00760 BEGIN outtext("? Could not delete old directfile."); outimage;
00770 exit(0);
00780 END;
00790 END;
00800 inf:- NEW infile(conc("INFIL ",inf_name));
00810 get_linelength;
00820 inf.open(blanks(linelength+6));
00830 inf.inimage;
00840 infnumbered:= numbered;
00860 IF not infnumbered THEN inf.image:- inf.image.sub(1,linelength);
00880 dirf:- NEW directfile(conc("DIRF ",dirf_name,
00890 "/IMAGESIZE:",linelt));
00900 dirf.open(NOTEXT);
00905 IF not infnumbered THEN dirf.image:- inf.image ELSE
00910 BEGIN dirf.image:- inf.image.sub(7,inf.image.length-6);
00920 buffer:- inf.image.sub(1,5);
00925 END;
00930 WHILE NOT inf.endfile DO
00940 BEGIN
00945 IF infnumbered THEN
00948 BEGIN
00950 buffer.setpos(1);
00960 location:= scanint(buffer);
00970 IF buffer.pos = 1 THEN
00980 BEGIN outtext("? No legal line number: "); outimage;
00990 outtext(inf.image.strip); outimage; location:= location+1;
01000 END;
01010 END ELSE location:= location+1;
01020 dirf.locate(location); dirf.outimage;
01040 inf.inimage;
01050 END;
01060 inf.close; dirf.close;
01070 END;
01080
01090 PROCEDURE sqcreate;
01100 BEGIN
01110 outtext("Input old direct file name: "); breakoutimage;
01120 inimage; dirf_name:- copy(sysin.image.strip);
01130 outtext("Input new sequential file name: "); breakoutimage;
01140 inimage; outf_name:- copy(sysin.image.strip);
01150 inf:- findinfile(outf_name);
01160 IF inf =/= NONE THEN
01170 BEGIN outtext("This sequential file already exists. Overwrite?");
01180 outimage; inimage; c:= inchar;
01190 IF c NE 'Y' AND c NE 'y' THEN exit(0);
01200 IF rename(inf,NOTEXT,FALSE) > -1 THEN
01210 BEGIN outtext("? Could not delete old sequential file.");
01220 outimage;
01230 exit(0);
01240 END;
01250 END;
01260 outf:- NEW outfile(conc("UTFIL ",outf_name,"/NUMBERED"));
01270 get_linelength;
01280 dirf:- NEW directfile(conc("DIRF ",dirf_name,
01290 "/ACCESS:RONLY/IMAGESIZE:",linelt));
01300 buffer:- blanks(linelength+11);
01310 outf.open(buffer.sub(6,linelength+6));
01320 dirf.open(buffer.sub(12,linelength));
01330 tabpos:- outf.image.sub(6,1);
01340 dirf.inimage;
01350 buffer:- buffer.sub(5,6); location:= 100000;
01360 twochars:- dirf.image.sub(1,2);
01370 WHILE NOT dirf.endfile DO
01380 BEGIN
01390 location:= location+1;
01400 IF twochars NE "/*" THEN
01410 BEGIN
01420 buffer.putint(location);
01430 tabpos.setpos(1); tabpos.putchar(tab);
01440 outf.outimage;
01450 END;
01460 dirf.inimage;
01470 END;
01480 outf.close; dirf.close;
01490 END;
01500
01510 COMMENT main program;
01520 tab:= char(9);
01530 WHILE dirf == NONE DO
01540 BEGIN
01550 outtext("Input 'D' for directfile creation,"
01560 " 'S' for seqfile creation:");
01570 outimage; inimage;
01580 c:= inchar;
01590 IF c = 'D' OR c = 'd' THEN dfcreate ELSE
01600 IF c = 'S' OR c = 's' THEN sqcreate;
01610 END;
01620 END;