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BCPL/armlib/b/decodeargs
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Zipped Apps » BCPL |
| Filename: | BCPL/armlib/b/decodeargs |
| Read OK: | ✔ |
| File size: | 0EBE bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
SECTION "DecodeArgs"
GET "LibHdr"
STATIC {
dummy = #x4e524556;
version = 1*256+2 }
MANIFEST $(
DeleteChar = 127 $);
LET RdArgs(keys, argv, size) = VALOF
$( LET w = argv;
LET numbargs = ?;
!w := 0;
FOR p = 1 TO keys%0 DO
$( LET kch = keys%p;
IF kch='/' THEN $(
LET c = CapitalCh(keys%(p+1));
IF c='A' THEN !w := !w | 1;
IF c='K' THEN !w := !w | 2;
IF c='S' THEN !w := !w | 4;
LOOP $);
IF kch=',' THEN $(
w := w+1;
!w := 0 $) $);
w := w+1;
numbargs := w-argv;
// At this stage, the argument elements of argv have been
// initialised to 0 -
// 1 /A
// 2 /K
// 3 /A/K
// 4 /S
// 5 /S/A
// 6 /S/K
// 7 /S/A/K
$( LET argno = -1;
LET wsize = size+argv-w;
SWITCHON RdItem(w, wsize) INTO
$( DEFAULT:
err: $( LET ch = ?;
ch := RdCh() REPEATUNTIL ch='*N' | ch='*E' |
ch=EndStreamCh
$)
CASE -3:
result2 := 120;
RESULTIS 0
CASE 0: // *N, EndStreamCh
FOR i = 0 TO numbargs-1 DO $(
LET a = argv!i;
IF 0<=a<=7 THEN
TEST (a&1)=0 THEN
argv!i := 0
ELSE
GOTO err $);
RdCh();
RESULTIS w
CASE 1: // keyword name
argno := FindArg(keys, w);
TEST argno>=0 THEN
TEST 4<=argv!argno<=7 THEN $( // no value for key.
argv!argno := -1;
LOOP $)
ELSE $(
LET item = RdItem(w, wsize);
IF item=-2 THEN item := RdItem(w, wsize);
IF item<=0 THEN GOTO err $)
ELSE TEST RdCh()='*N' & FindArg("HELP,?", w)>=0 THEN $(
// help facility
WriteF("Arguments %S: ", keys);
ENDCASE $)
ELSE {
UnRdCh();
GOTO err }
CASE 2: // quoted item (i.e. arg value)
IF argno<0 THEN
FOR i = 0 TO numbargs-1 DO SWITCHON argv!i INTO
$( CASE 0: CASE 1:
argno := i;
BREAK
CASE 2: CASE 3:
GOTO err
$);
IF argno<0 THEN GOTO err;
argv!argno := w;
w := w+w%0/BytesPerWord+1
$)
$) REPEAT
$)
// Read an item from command line
// returns -3 escape
// -2 "=" Symbol
// -1 error
// 0 *N or EndStreamCh
// 1 keyword
// 2 nonkeyword (maybe quoted)
AND RdItem(v, size) = VALOF
$( LET p = 0;
LET pmax = (size+1)*BytesPerWord-1;
LET ch = ?;
LET quoted, keyword = FALSE, FALSE;
FOR i = 0 TO size DO v!i := 0;
ch := RdCh() REPEATWHILE ch='*S';
TEST ch='"' THEN $(
quoted := TRUE;
ch := RdCh() $)
ELSE IF ch='-' THEN $(
keyword := TRUE;
ch := RdCh() $);
UNTIL ch='*N' | ch=EndStreamCh DO
$( IF ch='*E' THEN RESULTIS -3; // escape has been pressed
TEST quoted THEN $(
IF ch='"' THEN RESULTIS 2;
IF ch='**' THEN $(
ch := RdCh();
IF CapitalCh(ch)='E' THEN ch := '*E';
IF CapitalCh(ch)='N' THEN ch := '*N' $) $)
ELSE IF ch=';' | ch='=' |
(ch='*S' & p>0 & v%1~='**') THEN
BREAK;
IF p=pmax THEN RESULTIS -1;
v%(p+1) := ch;
p := (ch=DeleteChar -> (p=0 -> 0, p-1), p+1);
v%0 := p;
ch := RdCh() $);
IF quoted THEN RESULTIS -1;
UnRdCh();
TEST p=0 THEN
TEST ch='=' THEN $(
RdCh();
RESULTIS -2 $)
ELSE
RESULTIS 0
ELSE
RESULTIS keyword -> 1, 2
$)
AND FindArg(keys, w) = VALOF // =argno if found, =-1 otherwise
$( MANIFEST $( matching = 0; skipping = 1 $);
LET state, wp, argno = matching, 0, 0;
FOR i = 1 TO keys%0 DO $(
LET kch = keys%i;
IF state=matching THEN $(
IF (kch='=' | kch='/' | kch=',') & wp=w%0 THEN
RESULTIS argno;
wp := wp+1;
IF compch(kch,w%wp)~=0 THEN state := skipping $);
IF kch=',' | kch='=' THEN state, wp := matching, 0;
IF kch=',' THEN argno := argno+1$);
IF state=matching & wp=w%0 THEN RESULTIS argno;
RESULTIS -1
$)
00000000 0a 53 45 43 54 49 4f 4e 20 22 44 65 63 6f 64 65 |.SECTION "Decode|
00000010 41 72 67 73 22 0a 0a 47 45 54 20 22 4c 69 62 48 |Args"..GET "LibH|
00000020 64 72 22 0a 0a 53 54 41 54 49 43 20 7b 0a 20 20 |dr"..STATIC {. |
00000030 20 64 75 6d 6d 79 20 3d 20 23 78 34 65 35 32 34 | dummy = #x4e524|
00000040 35 35 36 3b 0a 20 20 20 76 65 72 73 69 6f 6e 20 |556;. version |
00000050 3d 20 31 2a 32 35 36 2b 32 20 7d 0a 0a 4d 41 4e |= 1*256+2 }..MAN|
00000060 49 46 45 53 54 20 24 28 0a 20 20 20 44 65 6c 65 |IFEST $(. Dele|
00000070 74 65 43 68 61 72 20 3d 20 31 32 37 20 24 29 3b |teChar = 127 $);|
00000080 0a 0a 4c 45 54 20 52 64 41 72 67 73 28 6b 65 79 |..LET RdArgs(key|
00000090 73 2c 20 61 72 67 76 2c 20 73 69 7a 65 29 20 3d |s, argv, size) =|
000000a0 20 56 41 4c 4f 46 0a 24 28 20 4c 45 54 20 77 20 | VALOF.$( LET w |
000000b0 3d 20 61 72 67 76 3b 0a 20 20 20 4c 45 54 20 6e |= argv;. LET n|
000000c0 75 6d 62 61 72 67 73 20 3d 20 3f 3b 0a 0a 20 20 |umbargs = ?;.. |
000000d0 20 21 77 20 3a 3d 20 30 3b 0a 20 20 20 46 4f 52 | !w := 0;. FOR|
000000e0 20 70 20 3d 20 31 20 54 4f 20 6b 65 79 73 25 30 | p = 1 TO keys%0|
000000f0 20 44 4f 0a 20 20 20 24 28 20 4c 45 54 20 6b 63 | DO. $( LET kc|
00000100 68 20 3d 20 6b 65 79 73 25 70 3b 0a 20 20 20 20 |h = keys%p;. |
00000110 20 20 49 46 20 6b 63 68 3d 27 2f 27 20 54 48 45 | IF kch='/' THE|
00000120 4e 20 24 28 0a 09 20 4c 45 54 20 63 20 3d 20 43 |N $(.. LET c = C|
00000130 61 70 69 74 61 6c 43 68 28 6b 65 79 73 25 28 70 |apitalCh(keys%(p|
00000140 2b 31 29 29 3b 0a 09 20 49 46 20 63 3d 27 41 27 |+1));.. IF c='A'|
00000150 20 54 48 45 4e 20 21 77 20 3a 3d 20 21 77 20 7c | THEN !w := !w ||
00000160 20 31 3b 0a 09 20 49 46 20 63 3d 27 4b 27 20 54 | 1;.. IF c='K' T|
00000170 48 45 4e 20 21 77 20 3a 3d 20 21 77 20 7c 20 32 |HEN !w := !w | 2|
00000180 3b 0a 09 20 49 46 20 63 3d 27 53 27 20 54 48 45 |;.. IF c='S' THE|
00000190 4e 20 21 77 20 3a 3d 20 21 77 20 7c 20 34 3b 0a |N !w := !w | 4;.|
000001a0 09 20 4c 4f 4f 50 20 24 29 3b 0a 20 20 20 20 20 |. LOOP $);. |
000001b0 20 49 46 20 6b 63 68 3d 27 2c 27 20 54 48 45 4e | IF kch=',' THEN|
000001c0 20 24 28 0a 09 20 77 20 3a 3d 20 77 2b 31 3b 0a | $(.. w := w+1;.|
000001d0 09 20 21 77 20 3a 3d 20 30 20 24 29 20 24 29 3b |. !w := 0 $) $);|
000001e0 0a 20 20 20 77 20 3a 3d 20 77 2b 31 3b 0a 20 20 |. w := w+1;. |
000001f0 20 6e 75 6d 62 61 72 67 73 20 3a 3d 20 77 2d 61 | numbargs := w-a|
00000200 72 67 76 3b 0a 0a 2f 2f 20 41 74 20 74 68 69 73 |rgv;..// At this|
00000210 20 73 74 61 67 65 2c 20 74 68 65 20 61 72 67 75 | stage, the argu|
00000220 6d 65 6e 74 20 65 6c 65 6d 65 6e 74 73 20 6f 66 |ment elements of|
00000230 20 61 72 67 76 20 68 61 76 65 20 62 65 65 6e 0a | argv have been.|
00000240 2f 2f 20 69 6e 69 74 69 61 6c 69 73 65 64 20 74 |// initialised t|
00000250 6f 20 20 30 09 2d 0a 2f 2f 09 09 20 20 20 31 20 |o 0.-.//.. 1 |
00000260 20 20 2f 41 0a 2f 2f 09 09 20 20 20 32 20 20 20 | /A.//.. 2 |
00000270 2f 4b 0a 2f 2f 09 09 20 20 20 33 20 20 20 2f 41 |/K.//.. 3 /A|
00000280 2f 4b 0a 2f 2f 09 09 20 20 20 34 20 20 20 2f 53 |/K.//.. 4 /S|
00000290 0a 2f 2f 09 09 20 20 20 35 20 20 20 2f 53 2f 41 |.//.. 5 /S/A|
000002a0 0a 2f 2f 09 09 20 20 20 36 20 20 20 2f 53 2f 4b |.//.. 6 /S/K|
000002b0 0a 2f 2f 09 09 20 20 20 37 20 20 20 2f 53 2f 41 |.//.. 7 /S/A|
000002c0 2f 4b 0a 0a 20 20 20 24 28 20 4c 45 54 20 61 72 |/K.. $( LET ar|
000002d0 67 6e 6f 20 3d 20 2d 31 3b 0a 20 20 20 20 20 20 |gno = -1;. |
000002e0 4c 45 54 20 77 73 69 7a 65 20 3d 20 73 69 7a 65 |LET wsize = size|
000002f0 2b 61 72 67 76 2d 77 3b 0a 0a 20 20 20 20 20 20 |+argv-w;.. |
00000300 53 57 49 54 43 48 4f 4e 20 52 64 49 74 65 6d 28 |SWITCHON RdItem(|
00000310 77 2c 20 77 73 69 7a 65 29 20 49 4e 54 4f 0a 20 |w, wsize) INTO. |
00000320 20 20 20 20 20 24 28 20 44 45 46 41 55 4c 54 3a | $( DEFAULT:|
00000330 0a 65 72 72 3a 09 20 24 28 20 4c 45 54 20 63 68 |.err:. $( LET ch|
00000340 20 3d 20 3f 3b 0a 09 20 20 20 20 63 68 20 3a 3d | = ?;.. ch :=|
00000350 20 52 64 43 68 28 29 20 52 45 50 45 41 54 55 4e | RdCh() REPEATUN|
00000360 54 49 4c 20 63 68 3d 27 2a 4e 27 20 7c 20 63 68 |TIL ch='*N' | ch|
00000370 3d 27 2a 45 27 20 7c 0a 09 09 09 09 20 20 20 20 |='*E' |..... |
00000380 20 63 68 3d 45 6e 64 53 74 72 65 61 6d 43 68 0a | ch=EndStreamCh.|
00000390 09 20 24 29 0a 09 20 43 41 53 45 20 2d 33 3a 0a |. $).. CASE -3:.|
000003a0 09 20 20 20 20 72 65 73 75 6c 74 32 20 3a 3d 20 |. result2 := |
000003b0 31 32 30 3b 0a 09 20 20 20 20 52 45 53 55 4c 54 |120;.. RESULT|
000003c0 49 53 20 30 0a 0a 09 20 43 41 53 45 20 30 3a 20 |IS 0... CASE 0: |
000003d0 20 2f 2f 20 2a 4e 2c 20 45 6e 64 53 74 72 65 61 | // *N, EndStrea|
000003e0 6d 43 68 0a 09 20 20 20 20 46 4f 52 20 69 20 3d |mCh.. FOR i =|
000003f0 20 30 20 54 4f 20 6e 75 6d 62 61 72 67 73 2d 31 | 0 TO numbargs-1|
00000400 20 44 4f 20 24 28 0a 09 20 20 20 20 20 20 20 4c | DO $(.. L|
00000410 45 54 20 61 20 3d 20 61 72 67 76 21 69 3b 0a 09 |ET a = argv!i;..|
00000420 20 20 20 20 20 20 20 49 46 20 30 3c 3d 61 3c 3d | IF 0<=a<=|
00000430 37 20 54 48 45 4e 0a 09 09 20 20 54 45 53 54 20 |7 THEN... TEST |
00000440 28 61 26 31 29 3d 30 20 54 48 45 4e 0a 09 09 20 |(a&1)=0 THEN... |
00000450 20 20 20 20 61 72 67 76 21 69 20 3a 3d 20 30 0a | argv!i := 0.|
00000460 09 09 20 20 45 4c 53 45 0a 09 09 20 20 20 20 20 |.. ELSE... |
00000470 47 4f 54 4f 20 65 72 72 20 24 29 3b 0a 09 20 20 |GOTO err $);.. |
00000480 20 20 52 64 43 68 28 29 3b 0a 09 20 20 20 20 52 | RdCh();.. R|
00000490 45 53 55 4c 54 49 53 20 77 0a 0a 09 20 43 41 53 |ESULTIS w... CAS|
000004a0 45 20 31 3a 20 20 2f 2f 20 6b 65 79 77 6f 72 64 |E 1: // keyword|
000004b0 20 6e 61 6d 65 0a 09 20 20 20 20 61 72 67 6e 6f | name.. argno|
000004c0 20 3a 3d 20 46 69 6e 64 41 72 67 28 6b 65 79 73 | := FindArg(keys|
000004d0 2c 20 77 29 3b 0a 09 20 20 20 20 54 45 53 54 20 |, w);.. TEST |
000004e0 61 72 67 6e 6f 3e 3d 30 20 54 48 45 4e 0a 09 20 |argno>=0 THEN.. |
000004f0 20 20 20 20 20 20 54 45 53 54 20 34 3c 3d 61 72 | TEST 4<=ar|
00000500 67 76 21 61 72 67 6e 6f 3c 3d 37 20 54 48 45 4e |gv!argno<=7 THEN|
00000510 20 24 28 20 2f 2f 20 6e 6f 20 76 61 6c 75 65 20 | $( // no value |
00000520 66 6f 72 20 6b 65 79 2e 0a 09 09 20 20 61 72 67 |for key.... arg|
00000530 76 21 61 72 67 6e 6f 20 3a 3d 20 2d 31 3b 0a 09 |v!argno := -1;..|
00000540 09 20 20 4c 4f 4f 50 20 24 29 0a 09 20 20 20 20 |. LOOP $).. |
00000550 20 20 20 45 4c 53 45 20 24 28 0a 09 09 20 20 4c | ELSE $(... L|
00000560 45 54 20 69 74 65 6d 20 3d 20 52 64 49 74 65 6d |ET item = RdItem|
00000570 28 77 2c 20 77 73 69 7a 65 29 3b 0a 09 09 20 20 |(w, wsize);... |
00000580 49 46 20 69 74 65 6d 3d 2d 32 20 54 48 45 4e 20 |IF item=-2 THEN |
00000590 69 74 65 6d 20 3a 3d 20 52 64 49 74 65 6d 28 77 |item := RdItem(w|
000005a0 2c 20 77 73 69 7a 65 29 3b 0a 09 09 20 20 49 46 |, wsize);... IF|
000005b0 20 69 74 65 6d 3c 3d 30 20 54 48 45 4e 20 47 4f | item<=0 THEN GO|
000005c0 54 4f 20 65 72 72 20 24 29 0a 09 20 20 20 20 45 |TO err $).. E|
000005d0 4c 53 45 20 54 45 53 54 20 52 64 43 68 28 29 3d |LSE TEST RdCh()=|
000005e0 27 2a 4e 27 20 26 20 46 69 6e 64 41 72 67 28 22 |'*N' & FindArg("|
000005f0 48 45 4c 50 2c 3f 22 2c 20 77 29 3e 3d 30 20 54 |HELP,?", w)>=0 T|
00000600 48 45 4e 20 24 28 0a 09 20 20 20 20 20 20 20 2f |HEN $(.. /|
00000610 2f 20 68 65 6c 70 20 66 61 63 69 6c 69 74 79 0a |/ help facility.|
00000620 09 20 20 20 20 20 20 20 57 72 69 74 65 46 28 22 |. WriteF("|
00000630 41 72 67 75 6d 65 6e 74 73 20 25 53 3a 20 22 2c |Arguments %S: ",|
00000640 20 6b 65 79 73 29 3b 0a 09 20 20 20 20 20 20 20 | keys);.. |
00000650 45 4e 44 43 41 53 45 20 24 29 0a 09 20 20 20 20 |ENDCASE $).. |
00000660 45 4c 53 45 20 7b 0a 09 20 20 20 20 20 20 20 55 |ELSE {.. U|
00000670 6e 52 64 43 68 28 29 3b 0a 09 20 20 20 20 20 20 |nRdCh();.. |
00000680 20 47 4f 54 4f 20 65 72 72 20 7d 0a 0a 09 20 43 | GOTO err }... C|
00000690 41 53 45 20 32 3a 20 20 2f 2f 20 71 75 6f 74 65 |ASE 2: // quote|
000006a0 64 20 69 74 65 6d 20 28 69 2e 65 2e 20 61 72 67 |d item (i.e. arg|
000006b0 20 76 61 6c 75 65 29 0a 09 20 20 20 20 49 46 20 | value).. IF |
000006c0 61 72 67 6e 6f 3c 30 20 54 48 45 4e 0a 09 20 20 |argno<0 THEN.. |
000006d0 20 20 20 20 20 46 4f 52 20 69 20 3d 20 30 20 54 | FOR i = 0 T|
000006e0 4f 20 6e 75 6d 62 61 72 67 73 2d 31 20 44 4f 20 |O numbargs-1 DO |
000006f0 53 57 49 54 43 48 4f 4e 20 61 72 67 76 21 69 20 |SWITCHON argv!i |
00000700 49 4e 54 4f 0a 09 20 20 20 20 20 20 20 24 28 20 |INTO.. $( |
00000710 43 41 53 45 20 30 3a 20 43 41 53 45 20 31 3a 0a |CASE 0: CASE 1:.|
00000720 09 09 20 20 20 20 61 72 67 6e 6f 20 3a 3d 20 69 |.. argno := i|
00000730 3b 0a 09 09 20 20 20 20 42 52 45 41 4b 0a 09 09 |;... BREAK...|
00000740 20 20 43 41 53 45 20 32 3a 20 43 41 53 45 20 33 | CASE 2: CASE 3|
00000750 3a 0a 09 09 20 20 20 20 47 4f 54 4f 20 65 72 72 |:... GOTO err|
00000760 0a 09 20 20 20 20 20 20 20 24 29 3b 0a 09 20 20 |.. $);.. |
00000770 20 20 49 46 20 61 72 67 6e 6f 3c 30 20 54 48 45 | IF argno<0 THE|
00000780 4e 20 47 4f 54 4f 20 65 72 72 3b 0a 09 20 20 20 |N GOTO err;.. |
00000790 20 61 72 67 76 21 61 72 67 6e 6f 20 3a 3d 20 77 | argv!argno := w|
000007a0 3b 0a 09 20 20 20 20 77 20 3a 3d 20 77 2b 77 25 |;.. w := w+w%|
000007b0 30 2f 42 79 74 65 73 50 65 72 57 6f 72 64 2b 31 |0/BytesPerWord+1|
000007c0 0a 20 20 20 20 20 20 24 29 0a 20 20 20 24 29 20 |. $). $) |
000007d0 52 45 50 45 41 54 0a 24 29 0a 0a 2f 2f 20 52 65 |REPEAT.$)..// Re|
000007e0 61 64 20 61 6e 20 69 74 65 6d 20 66 72 6f 6d 20 |ad an item from |
000007f0 63 6f 6d 6d 61 6e 64 20 6c 69 6e 65 0a 2f 2f 20 |command line.// |
00000800 72 65 74 75 72 6e 73 20 2d 33 09 20 65 73 63 61 |returns -3. esca|
00000810 70 65 0a 2f 2f 09 20 20 20 2d 32 09 20 22 3d 22 |pe.//. -2. "="|
00000820 20 53 79 6d 62 6f 6c 0a 2f 2f 09 20 20 20 2d 31 | Symbol.//. -1|
00000830 09 20 65 72 72 6f 72 0a 2f 2f 09 20 20 20 20 30 |. error.//. 0|
00000840 09 20 2a 4e 20 6f 72 20 45 6e 64 53 74 72 65 61 |. *N or EndStrea|
00000850 6d 43 68 0a 2f 2f 09 20 20 20 20 31 09 20 6b 65 |mCh.//. 1. ke|
00000860 79 77 6f 72 64 0a 2f 2f 09 20 20 20 20 32 09 20 |yword.//. 2. |
00000870 6e 6f 6e 6b 65 79 77 6f 72 64 20 28 6d 61 79 62 |nonkeyword (mayb|
00000880 65 20 71 75 6f 74 65 64 29 0a 0a 41 4e 44 20 52 |e quoted)..AND R|
00000890 64 49 74 65 6d 28 76 2c 20 73 69 7a 65 29 20 3d |dItem(v, size) =|
000008a0 20 56 41 4c 4f 46 0a 24 28 20 4c 45 54 20 70 20 | VALOF.$( LET p |
000008b0 3d 20 30 3b 0a 20 20 20 4c 45 54 20 70 6d 61 78 |= 0;. LET pmax|
000008c0 20 3d 20 28 73 69 7a 65 2b 31 29 2a 42 79 74 65 | = (size+1)*Byte|
000008d0 73 50 65 72 57 6f 72 64 2d 31 3b 0a 20 20 20 4c |sPerWord-1;. L|
000008e0 45 54 20 63 68 20 3d 20 3f 3b 0a 20 20 20 4c 45 |ET ch = ?;. LE|
000008f0 54 20 71 75 6f 74 65 64 2c 20 6b 65 79 77 6f 72 |T quoted, keywor|
00000900 64 20 3d 20 46 41 4c 53 45 2c 20 46 41 4c 53 45 |d = FALSE, FALSE|
00000910 3b 0a 0a 20 20 20 46 4f 52 20 69 20 3d 20 30 20 |;.. FOR i = 0 |
00000920 54 4f 20 73 69 7a 65 20 44 4f 20 76 21 69 20 3a |TO size DO v!i :|
00000930 3d 20 30 3b 0a 0a 20 20 20 63 68 20 3a 3d 20 52 |= 0;.. ch := R|
00000940 64 43 68 28 29 20 52 45 50 45 41 54 57 48 49 4c |dCh() REPEATWHIL|
00000950 45 20 63 68 3d 27 2a 53 27 3b 0a 0a 20 20 20 54 |E ch='*S';.. T|
00000960 45 53 54 20 63 68 3d 27 22 27 20 54 48 45 4e 20 |EST ch='"' THEN |
00000970 24 28 0a 20 20 20 20 20 20 71 75 6f 74 65 64 20 |$(. quoted |
00000980 3a 3d 20 54 52 55 45 3b 0a 20 20 20 20 20 20 63 |:= TRUE;. c|
00000990 68 20 3a 3d 20 52 64 43 68 28 29 20 24 29 0a 20 |h := RdCh() $). |
000009a0 20 20 45 4c 53 45 20 49 46 20 63 68 3d 27 2d 27 | ELSE IF ch='-'|
000009b0 20 54 48 45 4e 20 24 28 0a 20 20 20 20 20 20 6b | THEN $(. k|
000009c0 65 79 77 6f 72 64 20 3a 3d 20 54 52 55 45 3b 0a |eyword := TRUE;.|
000009d0 20 20 20 20 20 20 63 68 20 3a 3d 20 52 64 43 68 | ch := RdCh|
000009e0 28 29 20 24 29 3b 0a 0a 20 20 20 55 4e 54 49 4c |() $);.. UNTIL|
000009f0 20 63 68 3d 27 2a 4e 27 20 7c 20 63 68 3d 45 6e | ch='*N' | ch=En|
00000a00 64 53 74 72 65 61 6d 43 68 20 44 4f 0a 20 20 20 |dStreamCh DO. |
00000a10 24 28 20 49 46 20 63 68 3d 27 2a 45 27 20 54 48 |$( IF ch='*E' TH|
00000a20 45 4e 20 52 45 53 55 4c 54 49 53 20 2d 33 3b 20 |EN RESULTIS -3; |
00000a30 20 2f 2f 20 65 73 63 61 70 65 20 68 61 73 20 62 | // escape has b|
00000a40 65 65 6e 20 70 72 65 73 73 65 64 0a 20 20 20 20 |een pressed. |
00000a50 20 20 54 45 53 54 20 71 75 6f 74 65 64 20 54 48 | TEST quoted TH|
00000a60 45 4e 20 24 28 0a 09 20 49 46 20 63 68 3d 27 22 |EN $(.. IF ch='"|
00000a70 27 20 54 48 45 4e 20 52 45 53 55 4c 54 49 53 20 |' THEN RESULTIS |
00000a80 32 3b 0a 09 20 49 46 20 63 68 3d 27 2a 2a 27 20 |2;.. IF ch='**' |
00000a90 54 48 45 4e 20 24 28 0a 09 20 20 20 20 63 68 20 |THEN $(.. ch |
00000aa0 3a 3d 20 52 64 43 68 28 29 3b 0a 09 20 20 20 20 |:= RdCh();.. |
00000ab0 49 46 20 43 61 70 69 74 61 6c 43 68 28 63 68 29 |IF CapitalCh(ch)|
00000ac0 3d 27 45 27 20 54 48 45 4e 20 63 68 20 3a 3d 20 |='E' THEN ch := |
00000ad0 27 2a 45 27 3b 0a 09 20 20 20 20 49 46 20 43 61 |'*E';.. IF Ca|
00000ae0 70 69 74 61 6c 43 68 28 63 68 29 3d 27 4e 27 20 |pitalCh(ch)='N' |
00000af0 54 48 45 4e 20 63 68 20 3a 3d 20 27 2a 4e 27 20 |THEN ch := '*N' |
00000b00 24 29 20 24 29 0a 20 20 20 20 20 20 45 4c 53 45 |$) $). ELSE|
00000b10 20 49 46 20 63 68 3d 27 3b 27 20 7c 20 63 68 3d | IF ch=';' | ch=|
00000b20 27 3d 27 20 7c 0a 09 20 20 20 20 20 20 28 63 68 |'=' |.. (ch|
00000b30 3d 27 2a 53 27 20 26 20 70 3e 30 20 26 20 76 25 |='*S' & p>0 & v%|
00000b40 31 7e 3d 27 2a 2a 27 29 20 54 48 45 4e 0a 09 20 |1~='**') THEN.. |
00000b50 42 52 45 41 4b 3b 0a 20 20 20 20 20 20 49 46 20 |BREAK;. IF |
00000b60 70 3d 70 6d 61 78 20 54 48 45 4e 20 52 45 53 55 |p=pmax THEN RESU|
00000b70 4c 54 49 53 20 2d 31 3b 0a 20 20 20 20 20 20 76 |LTIS -1;. v|
00000b80 25 28 70 2b 31 29 20 3a 3d 20 63 68 3b 0a 20 20 |%(p+1) := ch;. |
00000b90 20 20 20 20 70 20 3a 3d 20 28 63 68 3d 44 65 6c | p := (ch=Del|
00000ba0 65 74 65 43 68 61 72 20 2d 3e 20 28 70 3d 30 20 |eteChar -> (p=0 |
00000bb0 2d 3e 20 30 2c 20 70 2d 31 29 2c 20 70 2b 31 29 |-> 0, p-1), p+1)|
00000bc0 3b 0a 20 20 20 20 20 20 76 25 30 20 3a 3d 20 70 |;. v%0 := p|
00000bd0 3b 0a 20 20 20 20 20 20 63 68 20 3a 3d 20 52 64 |;. ch := Rd|
00000be0 43 68 28 29 20 24 29 3b 0a 0a 20 20 20 49 46 20 |Ch() $);.. IF |
00000bf0 71 75 6f 74 65 64 20 54 48 45 4e 20 52 45 53 55 |quoted THEN RESU|
00000c00 4c 54 49 53 20 2d 31 3b 0a 20 20 20 55 6e 52 64 |LTIS -1;. UnRd|
00000c10 43 68 28 29 3b 0a 20 20 20 54 45 53 54 20 70 3d |Ch();. TEST p=|
00000c20 30 20 54 48 45 4e 0a 20 20 20 20 20 20 54 45 53 |0 THEN. TES|
00000c30 54 20 63 68 3d 27 3d 27 20 54 48 45 4e 20 24 28 |T ch='=' THEN $(|
00000c40 0a 09 20 52 64 43 68 28 29 3b 0a 09 20 52 45 53 |.. RdCh();.. RES|
00000c50 55 4c 54 49 53 20 2d 32 20 24 29 0a 20 20 20 20 |ULTIS -2 $). |
00000c60 20 20 45 4c 53 45 0a 09 20 52 45 53 55 4c 54 49 | ELSE.. RESULTI|
00000c70 53 20 30 0a 20 20 20 45 4c 53 45 0a 20 20 20 20 |S 0. ELSE. |
00000c80 20 20 52 45 53 55 4c 54 49 53 20 6b 65 79 77 6f | RESULTIS keywo|
00000c90 72 64 20 2d 3e 20 31 2c 20 32 0a 24 29 0a 0a 41 |rd -> 1, 2.$)..A|
00000ca0 4e 44 20 46 69 6e 64 41 72 67 28 6b 65 79 73 2c |ND FindArg(keys,|
00000cb0 20 77 29 20 3d 20 56 41 4c 4f 46 20 20 2f 2f 20 | w) = VALOF // |
00000cc0 3d 61 72 67 6e 6f 20 69 66 20 66 6f 75 6e 64 2c |=argno if found,|
00000cd0 20 3d 2d 31 20 6f 74 68 65 72 77 69 73 65 0a 24 | =-1 otherwise.$|
00000ce0 28 20 4d 41 4e 49 46 45 53 54 20 24 28 20 6d 61 |( MANIFEST $( ma|
00000cf0 74 63 68 69 6e 67 20 3d 20 30 3b 20 73 6b 69 70 |tching = 0; skip|
00000d00 70 69 6e 67 20 3d 20 31 20 24 29 3b 0a 20 20 20 |ping = 1 $);. |
00000d10 4c 45 54 20 73 74 61 74 65 2c 20 77 70 2c 20 61 |LET state, wp, a|
00000d20 72 67 6e 6f 20 3d 20 6d 61 74 63 68 69 6e 67 2c |rgno = matching,|
00000d30 20 30 2c 20 30 3b 0a 0a 20 20 20 46 4f 52 20 69 | 0, 0;.. FOR i|
00000d40 20 3d 20 31 20 54 4f 20 6b 65 79 73 25 30 20 44 | = 1 TO keys%0 D|
00000d50 4f 20 24 28 0a 20 20 20 20 20 20 4c 45 54 20 6b |O $(. LET k|
00000d60 63 68 20 3d 20 6b 65 79 73 25 69 3b 0a 20 20 20 |ch = keys%i;. |
00000d70 20 20 20 49 46 20 73 74 61 74 65 3d 6d 61 74 63 | IF state=matc|
00000d80 68 69 6e 67 20 54 48 45 4e 20 24 28 0a 09 20 49 |hing THEN $(.. I|
00000d90 46 20 28 6b 63 68 3d 27 3d 27 20 7c 20 6b 63 68 |F (kch='=' | kch|
00000da0 3d 27 2f 27 20 7c 20 6b 63 68 3d 27 2c 27 29 20 |='/' | kch=',') |
00000db0 26 20 77 70 3d 77 25 30 20 54 48 45 4e 0a 09 20 |& wp=w%0 THEN.. |
00000dc0 20 20 20 52 45 53 55 4c 54 49 53 20 61 72 67 6e | RESULTIS argn|
00000dd0 6f 3b 0a 09 20 77 70 20 3a 3d 20 77 70 2b 31 3b |o;.. wp := wp+1;|
00000de0 0a 09 20 49 46 20 63 6f 6d 70 63 68 28 6b 63 68 |.. IF compch(kch|
00000df0 2c 77 25 77 70 29 7e 3d 30 20 54 48 45 4e 20 73 |,w%wp)~=0 THEN s|
00000e00 74 61 74 65 20 3a 3d 20 73 6b 69 70 70 69 6e 67 |tate := skipping|
00000e10 20 24 29 3b 0a 20 20 20 20 20 20 49 46 20 6b 63 | $);. IF kc|
00000e20 68 3d 27 2c 27 20 7c 20 6b 63 68 3d 27 3d 27 20 |h=',' | kch='=' |
00000e30 54 48 45 4e 20 73 74 61 74 65 2c 20 77 70 20 3a |THEN state, wp :|
00000e40 3d 20 6d 61 74 63 68 69 6e 67 2c 20 30 3b 0a 20 |= matching, 0;. |
00000e50 20 20 20 20 20 49 46 20 6b 63 68 3d 27 2c 27 20 | IF kch=',' |
00000e60 54 48 45 4e 20 61 72 67 6e 6f 20 3a 3d 20 61 72 |THEN argno := ar|
00000e70 67 6e 6f 2b 31 24 29 3b 0a 20 20 20 49 46 20 73 |gno+1$);. IF s|
00000e80 74 61 74 65 3d 6d 61 74 63 68 69 6e 67 20 26 20 |tate=matching & |
00000e90 77 70 3d 77 25 30 20 54 48 45 4e 20 52 45 53 55 |wp=w%0 THEN RESU|
00000ea0 4c 54 49 53 20 61 72 67 6e 6f 3b 0a 20 20 20 52 |LTIS argno;. R|
00000eb0 45 53 55 4c 54 49 53 20 2d 31 0a 24 29 0a |ESULTIS -1.$).|
00000ebe 
.