]>
Commit | Line | Data |
---|---|---|
d23b8f57 RK |
1 | ------------------------------------------------------------------------------ |
2 | -- -- | |
3084fecd | 3 | -- GNAT RUN-TIME COMPONENTS -- |
d23b8f57 RK |
4 | -- -- |
5 | -- A D A . T E X T _ I O . E D I T I N G -- | |
6 | -- -- | |
7 | -- B o d y -- | |
8 | -- -- | |
748086b7 | 9 | -- Copyright (C) 1992-2009, Free Software Foundation, Inc. -- |
d23b8f57 RK |
10 | -- -- |
11 | -- GNAT is free software; you can redistribute it and/or modify it under -- | |
12 | -- terms of the GNU General Public License as published by the Free Soft- -- | |
748086b7 | 13 | -- ware Foundation; either version 3, or (at your option) any later ver- -- |
d23b8f57 RK |
14 | -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
15 | -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- | |
748086b7 JJ |
16 | -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
17 | -- -- | |
18 | -- As a special exception under Section 7 of GPL version 3, you are granted -- | |
19 | -- additional permissions described in the GCC Runtime Library Exception, -- | |
20 | -- version 3.1, as published by the Free Software Foundation. -- | |
21 | -- -- | |
22 | -- You should have received a copy of the GNU General Public License and -- | |
23 | -- a copy of the GCC Runtime Library Exception along with this program; -- | |
24 | -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- | |
25 | -- <http://www.gnu.org/licenses/>. -- | |
d23b8f57 RK |
26 | -- -- |
27 | -- GNAT was originally developed by the GNAT team at New York University. -- | |
71ff80dc | 28 | -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
d23b8f57 RK |
29 | -- -- |
30 | ------------------------------------------------------------------------------ | |
31 | ||
32 | with Ada.Strings.Fixed; | |
33 | package body Ada.Text_IO.Editing is | |
34 | ||
35 | package Strings renames Ada.Strings; | |
36 | package Strings_Fixed renames Ada.Strings.Fixed; | |
37 | package Text_IO renames Ada.Text_IO; | |
38 | ||
39 | --------------------- | |
40 | -- Blank_When_Zero -- | |
41 | --------------------- | |
42 | ||
0ae9f22f | 43 | function Blank_When_Zero (Pic : Picture) return Boolean is |
d23b8f57 RK |
44 | begin |
45 | return Pic.Contents.Original_BWZ; | |
46 | end Blank_When_Zero; | |
47 | ||
48 | ------------ | |
49 | -- Expand -- | |
50 | ------------ | |
51 | ||
0ae9f22f | 52 | function Expand (Picture : String) return String is |
d23b8f57 RK |
53 | Result : String (1 .. MAX_PICSIZE); |
54 | Picture_Index : Integer := Picture'First; | |
55 | Result_Index : Integer := Result'First; | |
56 | Count : Natural; | |
57 | Last : Integer; | |
58 | ||
59 | package Int_IO is new Ada.Text_IO.Integer_IO (Integer); | |
60 | ||
61 | begin | |
62 | if Picture'Length < 1 then | |
63 | raise Picture_Error; | |
64 | end if; | |
65 | ||
66 | if Picture (Picture'First) = '(' then | |
67 | raise Picture_Error; | |
68 | end if; | |
69 | ||
70 | loop | |
71 | case Picture (Picture_Index) is | |
72 | ||
73 | when '(' => | |
74 | Int_IO.Get (Picture (Picture_Index + 1 .. Picture'Last), | |
75 | Count, Last); | |
76 | ||
77 | if Picture (Last + 1) /= ')' then | |
78 | raise Picture_Error; | |
79 | end if; | |
80 | ||
81 | -- In what follows note that one copy of the repeated | |
82 | -- character has already been made, so a count of one is a | |
83 | -- no-op, and a count of zero erases a character. | |
84 | ||
054efbba LG |
85 | if Result_Index + Count - 2 > Result'Last then |
86 | raise Picture_Error; | |
87 | end if; | |
88 | ||
d23b8f57 RK |
89 | for J in 2 .. Count loop |
90 | Result (Result_Index + J - 2) := Picture (Picture_Index - 1); | |
91 | end loop; | |
92 | ||
93 | Result_Index := Result_Index + Count - 1; | |
94 | ||
a2cb348e | 95 | -- Last + 1 was a ')' throw it away too |
d23b8f57 RK |
96 | |
97 | Picture_Index := Last + 2; | |
98 | ||
99 | when ')' => | |
100 | raise Picture_Error; | |
101 | ||
102 | when others => | |
054efbba LG |
103 | if Result_Index > Result'Last then |
104 | raise Picture_Error; | |
105 | end if; | |
106 | ||
d23b8f57 RK |
107 | Result (Result_Index) := Picture (Picture_Index); |
108 | Picture_Index := Picture_Index + 1; | |
109 | Result_Index := Result_Index + 1; | |
110 | ||
111 | end case; | |
112 | ||
113 | exit when Picture_Index > Picture'Last; | |
114 | end loop; | |
115 | ||
116 | return Result (1 .. Result_Index - 1); | |
117 | ||
118 | exception | |
119 | when others => | |
120 | raise Picture_Error; | |
d23b8f57 RK |
121 | end Expand; |
122 | ||
123 | ------------------- | |
124 | -- Format_Number -- | |
125 | ------------------- | |
126 | ||
127 | function Format_Number | |
128 | (Pic : Format_Record; | |
129 | Number : String; | |
130 | Currency_Symbol : String; | |
131 | Fill_Character : Character; | |
132 | Separator_Character : Character; | |
0ae9f22f | 133 | Radix_Point : Character) return String |
d23b8f57 RK |
134 | is |
135 | Attrs : Number_Attributes := Parse_Number_String (Number); | |
136 | Position : Integer; | |
137 | Rounded : String := Number; | |
138 | ||
139 | Sign_Position : Integer := Pic.Sign_Position; -- may float. | |
140 | ||
141 | Answer : String (1 .. Pic.Picture.Length) := Pic.Picture.Expanded; | |
142 | Last : Integer; | |
143 | Currency_Pos : Integer := Pic.Start_Currency; | |
fbf5a39b | 144 | In_Currency : Boolean := False; |
d23b8f57 RK |
145 | |
146 | Dollar : Boolean := False; | |
a2cb348e | 147 | -- Overridden immediately if necessary |
d23b8f57 RK |
148 | |
149 | Zero : Boolean := True; | |
a2cb348e | 150 | -- Set to False when a non-zero digit is output |
d23b8f57 RK |
151 | |
152 | begin | |
153 | ||
154 | -- If the picture has fewer decimal places than the number, the image | |
155 | -- must be rounded according to the usual rules. | |
156 | ||
157 | if Attrs.Has_Fraction then | |
158 | declare | |
159 | R : constant Integer := | |
160 | (Attrs.End_Of_Fraction - Attrs.Start_Of_Fraction + 1) | |
161 | - Pic.Max_Trailing_Digits; | |
162 | R_Pos : Integer; | |
163 | ||
164 | begin | |
165 | if R > 0 then | |
166 | R_Pos := Attrs.End_Of_Fraction - R; | |
167 | ||
168 | if Rounded (R_Pos + 1) > '4' then | |
169 | ||
170 | if Rounded (R_Pos) = '.' then | |
171 | R_Pos := R_Pos - 1; | |
172 | end if; | |
173 | ||
174 | if Rounded (R_Pos) /= '9' then | |
175 | Rounded (R_Pos) := Character'Succ (Rounded (R_Pos)); | |
176 | else | |
177 | Rounded (R_Pos) := '0'; | |
178 | R_Pos := R_Pos - 1; | |
179 | ||
180 | while R_Pos > 1 loop | |
181 | if Rounded (R_Pos) = '.' then | |
182 | R_Pos := R_Pos - 1; | |
183 | end if; | |
184 | ||
185 | if Rounded (R_Pos) /= '9' then | |
186 | Rounded (R_Pos) := Character'Succ (Rounded (R_Pos)); | |
187 | exit; | |
188 | else | |
189 | Rounded (R_Pos) := '0'; | |
190 | R_Pos := R_Pos - 1; | |
191 | end if; | |
192 | end loop; | |
193 | ||
194 | -- The rounding may add a digit in front. Either the | |
195 | -- leading blank or the sign (already captured) can | |
196 | -- be overwritten. | |
197 | ||
198 | if R_Pos = 1 then | |
199 | Rounded (R_Pos) := '1'; | |
200 | Attrs.Start_Of_Int := Attrs.Start_Of_Int - 1; | |
201 | end if; | |
202 | end if; | |
203 | end if; | |
204 | end if; | |
205 | end; | |
206 | end if; | |
207 | ||
208 | if Pic.Start_Currency /= Invalid_Position then | |
209 | Dollar := Answer (Pic.Start_Currency) = '$'; | |
210 | end if; | |
211 | ||
212 | -- Fix up "direct inserts" outside the playing field. Set up as one | |
213 | -- loop to do the beginning, one (reverse) loop to do the end. | |
214 | ||
215 | Last := 1; | |
216 | loop | |
217 | exit when Last = Pic.Start_Float; | |
218 | exit when Last = Pic.Radix_Position; | |
219 | exit when Answer (Last) = '9'; | |
220 | ||
221 | case Answer (Last) is | |
222 | ||
223 | when '_' => | |
224 | Answer (Last) := Separator_Character; | |
225 | ||
226 | when 'b' => | |
227 | Answer (Last) := ' '; | |
228 | ||
229 | when others => | |
230 | null; | |
231 | ||
232 | end case; | |
233 | ||
234 | exit when Last = Answer'Last; | |
235 | ||
236 | Last := Last + 1; | |
237 | end loop; | |
238 | ||
239 | -- Now for the end... | |
240 | ||
241 | for J in reverse Last .. Answer'Last loop | |
242 | exit when J = Pic.Radix_Position; | |
243 | ||
a2cb348e | 244 | -- Do this test First, Separator_Character can equal Pic.Floater |
d23b8f57 RK |
245 | |
246 | if Answer (J) = Pic.Floater then | |
247 | exit; | |
248 | end if; | |
249 | ||
250 | case Answer (J) is | |
251 | ||
252 | when '_' => | |
253 | Answer (J) := Separator_Character; | |
254 | ||
255 | when 'b' => | |
256 | Answer (J) := ' '; | |
257 | ||
258 | when '9' => | |
259 | exit; | |
260 | ||
261 | when others => | |
262 | null; | |
263 | ||
264 | end case; | |
265 | end loop; | |
266 | ||
267 | -- Non-floating sign | |
268 | ||
269 | if Pic.Start_Currency /= -1 | |
270 | and then Answer (Pic.Start_Currency) = '#' | |
271 | and then Pic.Floater /= '#' | |
272 | then | |
273 | if Currency_Symbol'Length > | |
274 | Pic.End_Currency - Pic.Start_Currency + 1 | |
275 | then | |
276 | raise Picture_Error; | |
277 | ||
278 | elsif Currency_Symbol'Length = | |
279 | Pic.End_Currency - Pic.Start_Currency + 1 | |
280 | then | |
281 | Answer (Pic.Start_Currency .. Pic.End_Currency) := | |
282 | Currency_Symbol; | |
283 | ||
284 | elsif Pic.Radix_Position = Invalid_Position | |
285 | or else Pic.Start_Currency < Pic.Radix_Position | |
286 | then | |
287 | Answer (Pic.Start_Currency .. Pic.End_Currency) := | |
288 | (others => ' '); | |
289 | Answer (Pic.End_Currency - Currency_Symbol'Length + 1 .. | |
290 | Pic.End_Currency) := Currency_Symbol; | |
291 | ||
292 | else | |
293 | Answer (Pic.Start_Currency .. Pic.End_Currency) := | |
294 | (others => ' '); | |
295 | Answer (Pic.Start_Currency .. | |
296 | Pic.Start_Currency + Currency_Symbol'Length - 1) := | |
297 | Currency_Symbol; | |
298 | end if; | |
299 | end if; | |
300 | ||
301 | -- Fill in leading digits | |
302 | ||
303 | if Attrs.End_Of_Int - Attrs.Start_Of_Int + 1 > | |
304 | Pic.Max_Leading_Digits | |
305 | then | |
fbf5a39b | 306 | raise Ada.Text_IO.Layout_Error; |
d23b8f57 RK |
307 | end if; |
308 | ||
309 | if Pic.Radix_Position = Invalid_Position then | |
310 | Position := Answer'Last; | |
311 | else | |
312 | Position := Pic.Radix_Position - 1; | |
313 | end if; | |
314 | ||
315 | for J in reverse Attrs.Start_Of_Int .. Attrs.End_Of_Int loop | |
316 | ||
317 | while Answer (Position) /= '9' | |
318 | and Answer (Position) /= Pic.Floater | |
319 | loop | |
320 | if Answer (Position) = '_' then | |
321 | Answer (Position) := Separator_Character; | |
322 | ||
323 | elsif Answer (Position) = 'b' then | |
324 | Answer (Position) := ' '; | |
325 | end if; | |
326 | ||
327 | Position := Position - 1; | |
328 | end loop; | |
329 | ||
330 | Answer (Position) := Rounded (J); | |
331 | ||
332 | if Rounded (J) /= '0' then | |
333 | Zero := False; | |
334 | end if; | |
335 | ||
336 | Position := Position - 1; | |
337 | end loop; | |
338 | ||
339 | -- Do lead float | |
340 | ||
341 | if Pic.Start_Float = Invalid_Position then | |
342 | ||
343 | -- No leading floats, but need to change '9' to '0', '_' to | |
344 | -- Separator_Character and 'b' to ' '. | |
345 | ||
346 | for J in Last .. Position loop | |
347 | ||
348 | -- Last set when fixing the "uninteresting" leaders above. | |
349 | -- Don't duplicate the work. | |
350 | ||
351 | if Answer (J) = '9' then | |
352 | Answer (J) := '0'; | |
353 | ||
354 | elsif Answer (J) = '_' then | |
355 | Answer (J) := Separator_Character; | |
356 | ||
357 | elsif Answer (J) = 'b' then | |
358 | Answer (J) := ' '; | |
359 | end if; | |
360 | end loop; | |
361 | ||
362 | elsif Pic.Floater = '<' | |
363 | or else | |
364 | Pic.Floater = '+' | |
365 | or else | |
366 | Pic.Floater = '-' | |
367 | then | |
368 | for J in Pic.End_Float .. Position loop -- May be null range. | |
369 | if Answer (J) = '9' then | |
370 | Answer (J) := '0'; | |
371 | ||
372 | elsif Answer (J) = '_' then | |
373 | Answer (J) := Separator_Character; | |
374 | ||
375 | elsif Answer (J) = 'b' then | |
376 | Answer (J) := ' '; | |
377 | end if; | |
378 | end loop; | |
379 | ||
380 | if Position > Pic.End_Float then | |
381 | Position := Pic.End_Float; | |
382 | end if; | |
383 | ||
384 | for J in Pic.Start_Float .. Position - 1 loop | |
385 | Answer (J) := ' '; | |
386 | end loop; | |
387 | ||
388 | Answer (Position) := Pic.Floater; | |
389 | Sign_Position := Position; | |
390 | ||
391 | elsif Pic.Floater = '$' then | |
392 | ||
393 | for J in Pic.End_Float .. Position loop -- May be null range. | |
394 | if Answer (J) = '9' then | |
395 | Answer (J) := '0'; | |
396 | ||
397 | elsif Answer (J) = '_' then | |
398 | Answer (J) := ' '; -- no separators before leftmost digit. | |
399 | ||
400 | elsif Answer (J) = 'b' then | |
401 | Answer (J) := ' '; | |
402 | end if; | |
403 | end loop; | |
404 | ||
405 | if Position > Pic.End_Float then | |
406 | Position := Pic.End_Float; | |
407 | end if; | |
408 | ||
409 | for J in Pic.Start_Float .. Position - 1 loop | |
410 | Answer (J) := ' '; | |
411 | end loop; | |
412 | ||
413 | Answer (Position) := Pic.Floater; | |
414 | Currency_Pos := Position; | |
415 | ||
416 | elsif Pic.Floater = '*' then | |
417 | ||
418 | for J in Pic.End_Float .. Position loop -- May be null range. | |
419 | if Answer (J) = '9' then | |
420 | Answer (J) := '0'; | |
421 | ||
422 | elsif Answer (J) = '_' then | |
423 | Answer (J) := Separator_Character; | |
424 | ||
425 | elsif Answer (J) = 'b' then | |
162c52f3 | 426 | Answer (J) := Fill_Character; |
d23b8f57 RK |
427 | end if; |
428 | end loop; | |
429 | ||
430 | if Position > Pic.End_Float then | |
431 | Position := Pic.End_Float; | |
432 | end if; | |
433 | ||
434 | for J in Pic.Start_Float .. Position loop | |
162c52f3 | 435 | Answer (J) := Fill_Character; |
d23b8f57 RK |
436 | end loop; |
437 | ||
438 | else | |
439 | if Pic.Floater = '#' then | |
440 | Currency_Pos := Currency_Symbol'Length; | |
fbf5a39b | 441 | In_Currency := True; |
d23b8f57 RK |
442 | end if; |
443 | ||
444 | for J in reverse Pic.Start_Float .. Position loop | |
445 | case Answer (J) is | |
446 | ||
447 | when '*' => | |
448 | Answer (J) := Fill_Character; | |
449 | ||
fbf5a39b AC |
450 | when 'b' | '/' => |
451 | if In_Currency and then Currency_Pos > 0 then | |
452 | Answer (J) := Currency_Symbol (Currency_Pos); | |
453 | Currency_Pos := Currency_Pos - 1; | |
454 | else | |
455 | Answer (J) := ' '; | |
456 | end if; | |
457 | ||
458 | when 'Z' | '0' => | |
d23b8f57 RK |
459 | Answer (J) := ' '; |
460 | ||
461 | when '9' => | |
462 | Answer (J) := '0'; | |
463 | ||
464 | when '.' | 'V' | 'v' | '<' | '$' | '+' | '-' => | |
465 | null; | |
466 | ||
467 | when '#' => | |
468 | if Currency_Pos = 0 then | |
469 | Answer (J) := ' '; | |
470 | else | |
471 | Answer (J) := Currency_Symbol (Currency_Pos); | |
472 | Currency_Pos := Currency_Pos - 1; | |
473 | end if; | |
474 | ||
475 | when '_' => | |
476 | ||
477 | case Pic.Floater is | |
478 | ||
479 | when '*' => | |
480 | Answer (J) := Fill_Character; | |
481 | ||
482 | when 'Z' | 'b' => | |
483 | Answer (J) := ' '; | |
484 | ||
485 | when '#' => | |
486 | if Currency_Pos = 0 then | |
487 | Answer (J) := ' '; | |
488 | ||
489 | else | |
490 | Answer (J) := Currency_Symbol (Currency_Pos); | |
491 | Currency_Pos := Currency_Pos - 1; | |
492 | end if; | |
493 | ||
494 | when others => | |
495 | null; | |
496 | ||
497 | end case; | |
498 | ||
499 | when others => | |
500 | null; | |
501 | ||
502 | end case; | |
503 | end loop; | |
504 | ||
505 | if Pic.Floater = '#' and then Currency_Pos /= 0 then | |
fbf5a39b | 506 | raise Ada.Text_IO.Layout_Error; |
d23b8f57 RK |
507 | end if; |
508 | end if; | |
509 | ||
510 | -- Do sign | |
511 | ||
512 | if Sign_Position = Invalid_Position then | |
513 | if Attrs.Negative then | |
fbf5a39b | 514 | raise Ada.Text_IO.Layout_Error; |
d23b8f57 RK |
515 | end if; |
516 | ||
517 | else | |
518 | if Attrs.Negative then | |
519 | case Answer (Sign_Position) is | |
520 | when 'C' | 'D' | '-' => | |
521 | null; | |
522 | ||
523 | when '+' => | |
524 | Answer (Sign_Position) := '-'; | |
525 | ||
526 | when '<' => | |
527 | Answer (Sign_Position) := '('; | |
528 | Answer (Pic.Second_Sign) := ')'; | |
529 | ||
530 | when others => | |
531 | raise Picture_Error; | |
532 | ||
533 | end case; | |
534 | ||
535 | else -- positive | |
536 | ||
537 | case Answer (Sign_Position) is | |
538 | ||
539 | when '-' => | |
540 | Answer (Sign_Position) := ' '; | |
541 | ||
542 | when '<' | 'C' | 'D' => | |
543 | Answer (Sign_Position) := ' '; | |
544 | Answer (Pic.Second_Sign) := ' '; | |
545 | ||
546 | when '+' => | |
547 | null; | |
548 | ||
549 | when others => | |
550 | raise Picture_Error; | |
551 | ||
552 | end case; | |
553 | end if; | |
554 | end if; | |
555 | ||
556 | -- Fill in trailing digits | |
557 | ||
558 | if Pic.Max_Trailing_Digits > 0 then | |
559 | ||
560 | if Attrs.Has_Fraction then | |
561 | Position := Attrs.Start_Of_Fraction; | |
562 | Last := Pic.Radix_Position + 1; | |
563 | ||
564 | for J in Last .. Answer'Last loop | |
565 | ||
566 | if Answer (J) = '9' or Answer (J) = Pic.Floater then | |
567 | Answer (J) := Rounded (Position); | |
568 | ||
569 | if Rounded (Position) /= '0' then | |
570 | Zero := False; | |
571 | end if; | |
572 | ||
573 | Position := Position + 1; | |
574 | Last := J + 1; | |
575 | ||
576 | -- Used up fraction but remember place in Answer | |
577 | ||
578 | exit when Position > Attrs.End_Of_Fraction; | |
579 | ||
580 | elsif Answer (J) = 'b' then | |
581 | Answer (J) := ' '; | |
582 | ||
583 | elsif Answer (J) = '_' then | |
584 | Answer (J) := Separator_Character; | |
585 | ||
586 | end if; | |
587 | ||
588 | Last := J + 1; | |
589 | end loop; | |
590 | ||
591 | Position := Last; | |
592 | ||
593 | else | |
594 | Position := Pic.Radix_Position + 1; | |
595 | end if; | |
596 | ||
597 | -- Now fill remaining 9's with zeros and _ with separators | |
598 | ||
599 | Last := Answer'Last; | |
600 | ||
601 | for J in Position .. Last loop | |
602 | if Answer (J) = '9' then | |
603 | Answer (J) := '0'; | |
604 | ||
605 | elsif Answer (J) = Pic.Floater then | |
606 | Answer (J) := '0'; | |
607 | ||
608 | elsif Answer (J) = '_' then | |
609 | Answer (J) := Separator_Character; | |
610 | ||
611 | elsif Answer (J) = 'b' then | |
612 | Answer (J) := ' '; | |
613 | ||
614 | end if; | |
615 | end loop; | |
616 | ||
617 | Position := Last + 1; | |
618 | ||
619 | else | |
620 | if Pic.Floater = '#' and then Currency_Pos /= 0 then | |
fbf5a39b | 621 | raise Ada.Text_IO.Layout_Error; |
d23b8f57 RK |
622 | end if; |
623 | ||
624 | -- No trailing digits, but now J may need to stick in a currency | |
625 | -- symbol or sign. | |
626 | ||
627 | if Pic.Start_Currency = Invalid_Position then | |
628 | Position := Answer'Last + 1; | |
629 | else | |
630 | Position := Pic.Start_Currency; | |
631 | end if; | |
632 | end if; | |
633 | ||
634 | for J in Position .. Answer'Last loop | |
635 | ||
636 | if Pic.Start_Currency /= Invalid_Position and then | |
637 | Answer (Pic.Start_Currency) = '#' then | |
638 | Currency_Pos := 1; | |
639 | end if; | |
640 | ||
d23b8f57 RK |
641 | case Answer (J) is |
642 | when '*' => | |
643 | Answer (J) := Fill_Character; | |
644 | ||
645 | when 'b' => | |
fbf5a39b AC |
646 | if In_Currency then |
647 | Answer (J) := Currency_Symbol (Currency_Pos); | |
648 | Currency_Pos := Currency_Pos + 1; | |
649 | ||
650 | if Currency_Pos > Currency_Symbol'Length then | |
651 | In_Currency := False; | |
652 | end if; | |
653 | end if; | |
d23b8f57 RK |
654 | |
655 | when '#' => | |
656 | if Currency_Pos > Currency_Symbol'Length then | |
657 | Answer (J) := ' '; | |
658 | ||
659 | else | |
fbf5a39b | 660 | In_Currency := True; |
d23b8f57 RK |
661 | Answer (J) := Currency_Symbol (Currency_Pos); |
662 | Currency_Pos := Currency_Pos + 1; | |
fbf5a39b AC |
663 | |
664 | if Currency_Pos > Currency_Symbol'Length then | |
665 | In_Currency := False; | |
666 | end if; | |
d23b8f57 RK |
667 | end if; |
668 | ||
669 | when '_' => | |
fbf5a39b AC |
670 | Answer (J) := Currency_Symbol (Currency_Pos); |
671 | Currency_Pos := Currency_Pos + 1; | |
d23b8f57 RK |
672 | |
673 | case Pic.Floater is | |
674 | ||
675 | when '*' => | |
676 | Answer (J) := Fill_Character; | |
677 | ||
678 | when 'Z' | 'z' => | |
679 | Answer (J) := ' '; | |
680 | ||
681 | when '#' => | |
682 | if Currency_Pos > Currency_Symbol'Length then | |
683 | Answer (J) := ' '; | |
684 | else | |
685 | Answer (J) := Currency_Symbol (Currency_Pos); | |
686 | Currency_Pos := Currency_Pos + 1; | |
687 | end if; | |
688 | ||
689 | when others => | |
690 | null; | |
691 | ||
692 | end case; | |
693 | ||
694 | when others => | |
695 | exit; | |
696 | ||
697 | end case; | |
698 | end loop; | |
699 | ||
a2cb348e | 700 | -- Now get rid of Blank_when_Zero and complete Star fill |
d23b8f57 RK |
701 | |
702 | if Zero and Pic.Blank_When_Zero then | |
703 | ||
a2cb348e | 704 | -- Value is zero, and blank it |
d23b8f57 RK |
705 | |
706 | Last := Answer'Last; | |
707 | ||
708 | if Dollar then | |
709 | Last := Last - 1 + Currency_Symbol'Length; | |
710 | end if; | |
711 | ||
712 | if Pic.Radix_Position /= Invalid_Position and then | |
713 | Answer (Pic.Radix_Position) = 'V' then | |
714 | Last := Last - 1; | |
715 | end if; | |
716 | ||
fbf5a39b | 717 | return String'(1 .. Last => ' '); |
d23b8f57 RK |
718 | |
719 | elsif Zero and Pic.Star_Fill then | |
720 | Last := Answer'Last; | |
721 | ||
722 | if Dollar then | |
723 | Last := Last - 1 + Currency_Symbol'Length; | |
724 | end if; | |
725 | ||
726 | if Pic.Radix_Position /= Invalid_Position then | |
727 | ||
728 | if Answer (Pic.Radix_Position) = 'V' then | |
729 | Last := Last - 1; | |
730 | ||
731 | elsif Dollar then | |
732 | if Pic.Radix_Position > Pic.Start_Currency then | |
fbf5a39b | 733 | return String'(1 .. Pic.Radix_Position - 1 => '*') & |
d23b8f57 | 734 | Radix_Point & |
fbf5a39b | 735 | String'(Pic.Radix_Position + 1 .. Last => '*'); |
d23b8f57 RK |
736 | |
737 | else | |
738 | return | |
739 | String' | |
740 | (1 .. | |
741 | Pic.Radix_Position + Currency_Symbol'Length - 2 => | |
742 | '*') & Radix_Point & | |
743 | String' | |
744 | (Pic.Radix_Position + Currency_Symbol'Length .. Last | |
745 | => '*'); | |
746 | end if; | |
747 | ||
748 | else | |
fbf5a39b | 749 | return String'(1 .. Pic.Radix_Position - 1 => '*') & |
d23b8f57 | 750 | Radix_Point & |
fbf5a39b | 751 | String'(Pic.Radix_Position + 1 .. Last => '*'); |
d23b8f57 RK |
752 | end if; |
753 | end if; | |
754 | ||
fbf5a39b | 755 | return String'(1 .. Last => '*'); |
d23b8f57 RK |
756 | end if; |
757 | ||
758 | -- This was once a simple return statement, now there are nine | |
759 | -- different return cases. Not to mention the five above to deal | |
760 | -- with zeros. Why not split things out? | |
761 | ||
762 | -- Processing the radix and sign expansion separately | |
763 | -- would require lots of copying--the string and some of its | |
fbf5a39b | 764 | -- indicies--without really simplifying the logic. The cases are: |
d23b8f57 RK |
765 | |
766 | -- 1) Expand $, replace '.' with Radix_Point | |
767 | -- 2) No currency expansion, replace '.' with Radix_Point | |
768 | -- 3) Expand $, radix blanked | |
769 | -- 4) No currency expansion, radix blanked | |
770 | -- 5) Elide V | |
771 | -- 6) Expand $, Elide V | |
772 | -- 7) Elide V, Expand $ (Two cases depending on order.) | |
773 | -- 8) No radix, expand $ | |
774 | -- 9) No radix, no currency expansion | |
775 | ||
776 | if Pic.Radix_Position /= Invalid_Position then | |
777 | ||
778 | if Answer (Pic.Radix_Position) = '.' then | |
779 | Answer (Pic.Radix_Position) := Radix_Point; | |
780 | ||
781 | if Dollar then | |
782 | ||
783 | -- 1) Expand $, replace '.' with Radix_Point | |
784 | ||
785 | return Answer (1 .. Currency_Pos - 1) & Currency_Symbol & | |
786 | Answer (Currency_Pos + 1 .. Answer'Last); | |
787 | ||
788 | else | |
789 | -- 2) No currency expansion, replace '.' with Radix_Point | |
790 | ||
791 | return Answer; | |
792 | end if; | |
793 | ||
794 | elsif Answer (Pic.Radix_Position) = ' ' then -- blanked radix. | |
795 | if Dollar then | |
796 | ||
797 | -- 3) Expand $, radix blanked | |
798 | ||
799 | return Answer (1 .. Currency_Pos - 1) & Currency_Symbol & | |
800 | Answer (Currency_Pos + 1 .. Answer'Last); | |
801 | ||
802 | else | |
803 | -- 4) No expansion, radix blanked | |
804 | ||
805 | return Answer; | |
806 | end if; | |
807 | ||
808 | -- V cases | |
809 | ||
810 | else | |
811 | if not Dollar then | |
812 | ||
813 | -- 5) Elide V | |
814 | ||
815 | return Answer (1 .. Pic.Radix_Position - 1) & | |
816 | Answer (Pic.Radix_Position + 1 .. Answer'Last); | |
817 | ||
818 | elsif Currency_Pos < Pic.Radix_Position then | |
819 | ||
820 | -- 6) Expand $, Elide V | |
821 | ||
822 | return Answer (1 .. Currency_Pos - 1) & Currency_Symbol & | |
823 | Answer (Currency_Pos + 1 .. Pic.Radix_Position - 1) & | |
824 | Answer (Pic.Radix_Position + 1 .. Answer'Last); | |
825 | ||
826 | else | |
827 | -- 7) Elide V, Expand $ | |
828 | ||
829 | return Answer (1 .. Pic.Radix_Position - 1) & | |
830 | Answer (Pic.Radix_Position + 1 .. Currency_Pos - 1) & | |
831 | Currency_Symbol & | |
832 | Answer (Currency_Pos + 1 .. Answer'Last); | |
833 | end if; | |
834 | end if; | |
835 | ||
836 | elsif Dollar then | |
837 | ||
838 | -- 8) No radix, expand $ | |
839 | ||
840 | return Answer (1 .. Currency_Pos - 1) & Currency_Symbol & | |
841 | Answer (Currency_Pos + 1 .. Answer'Last); | |
842 | ||
843 | else | |
844 | -- 9) No radix, no currency expansion | |
845 | ||
846 | return Answer; | |
847 | end if; | |
d23b8f57 RK |
848 | end Format_Number; |
849 | ||
850 | ------------------------- | |
851 | -- Parse_Number_String -- | |
852 | ------------------------- | |
853 | ||
854 | function Parse_Number_String (Str : String) return Number_Attributes is | |
855 | Answer : Number_Attributes; | |
856 | ||
857 | begin | |
858 | for J in Str'Range loop | |
859 | case Str (J) is | |
860 | ||
861 | when ' ' => | |
862 | null; -- ignore | |
863 | ||
864 | when '1' .. '9' => | |
865 | ||
866 | -- Decide if this is the start of a number. | |
867 | -- If so, figure out which one... | |
868 | ||
869 | if Answer.Has_Fraction then | |
870 | Answer.End_Of_Fraction := J; | |
871 | else | |
872 | if Answer.Start_Of_Int = Invalid_Position then | |
873 | -- start integer | |
874 | Answer.Start_Of_Int := J; | |
875 | end if; | |
876 | Answer.End_Of_Int := J; | |
877 | end if; | |
878 | ||
879 | when '0' => | |
880 | ||
881 | -- Only count a zero before the decimal point if it follows a | |
882 | -- non-zero digit. After the decimal point, zeros will be | |
883 | -- counted if followed by a non-zero digit. | |
884 | ||
885 | if not Answer.Has_Fraction then | |
886 | if Answer.Start_Of_Int /= Invalid_Position then | |
887 | Answer.End_Of_Int := J; | |
888 | end if; | |
889 | end if; | |
890 | ||
891 | when '-' => | |
892 | ||
893 | -- Set negative | |
894 | ||
895 | Answer.Negative := True; | |
896 | ||
897 | when '.' => | |
898 | ||
899 | -- Close integer, start fraction | |
900 | ||
901 | if Answer.Has_Fraction then | |
902 | raise Picture_Error; | |
903 | end if; | |
904 | ||
a2cb348e | 905 | -- Two decimal points is a no-no |
d23b8f57 RK |
906 | |
907 | Answer.Has_Fraction := True; | |
908 | Answer.End_Of_Fraction := J; | |
909 | ||
910 | -- Could leave this at Invalid_Position, but this seems the | |
911 | -- right way to indicate a null range... | |
912 | ||
913 | Answer.Start_Of_Fraction := J + 1; | |
914 | Answer.End_Of_Int := J - 1; | |
915 | ||
916 | when others => | |
917 | raise Picture_Error; -- can this happen? probably not! | |
918 | end case; | |
919 | end loop; | |
920 | ||
921 | if Answer.Start_Of_Int = Invalid_Position then | |
922 | Answer.Start_Of_Int := Answer.End_Of_Int + 1; | |
923 | end if; | |
924 | ||
a2cb348e | 925 | -- No significant (integer) digits needs a null range |
d23b8f57 RK |
926 | |
927 | return Answer; | |
d23b8f57 RK |
928 | end Parse_Number_String; |
929 | ||
930 | ---------------- | |
931 | -- Pic_String -- | |
932 | ---------------- | |
933 | ||
934 | -- The following ensures that we return B and not b being careful not | |
935 | -- to break things which expect lower case b for blank. See CXF3A02. | |
936 | ||
0ae9f22f | 937 | function Pic_String (Pic : Picture) return String is |
d23b8f57 RK |
938 | Temp : String (1 .. Pic.Contents.Picture.Length) := |
939 | Pic.Contents.Picture.Expanded; | |
940 | begin | |
941 | for J in Temp'Range loop | |
835d23b2 RD |
942 | if Temp (J) = 'b' then |
943 | Temp (J) := 'B'; | |
944 | end if; | |
d23b8f57 RK |
945 | end loop; |
946 | ||
947 | return Temp; | |
948 | end Pic_String; | |
949 | ||
950 | ------------------ | |
951 | -- Precalculate -- | |
952 | ------------------ | |
953 | ||
954 | procedure Precalculate (Pic : in out Format_Record) is | |
fbf5a39b AC |
955 | Debug : constant Boolean := False; |
956 | -- Set True to generate debug output | |
d23b8f57 RK |
957 | |
958 | Computed_BWZ : Boolean := True; | |
d23b8f57 RK |
959 | |
960 | type Legality is (Okay, Reject); | |
fbf5a39b | 961 | |
d23b8f57 | 962 | State : Legality := Reject; |
a2cb348e | 963 | -- Start in reject, which will reject null strings |
d23b8f57 RK |
964 | |
965 | Index : Pic_Index := Pic.Picture.Expanded'First; | |
966 | ||
967 | function At_End return Boolean; | |
968 | pragma Inline (At_End); | |
969 | ||
970 | procedure Set_State (L : Legality); | |
971 | pragma Inline (Set_State); | |
972 | ||
973 | function Look return Character; | |
974 | pragma Inline (Look); | |
975 | ||
976 | function Is_Insert return Boolean; | |
977 | pragma Inline (Is_Insert); | |
978 | ||
979 | procedure Skip; | |
980 | pragma Inline (Skip); | |
981 | ||
982 | procedure Debug_Start (Name : String); | |
983 | pragma Inline (Debug_Start); | |
984 | ||
0ae9f22f | 985 | procedure Debug_Integer (Value : Integer; S : String); |
d23b8f57 RK |
986 | pragma Inline (Debug_Integer); |
987 | ||
988 | procedure Trailing_Currency; | |
989 | procedure Trailing_Bracket; | |
990 | procedure Number_Fraction; | |
991 | procedure Number_Completion; | |
992 | procedure Number_Fraction_Or_Bracket; | |
993 | procedure Number_Fraction_Or_Z_Fill; | |
994 | procedure Zero_Suppression; | |
995 | procedure Floating_Bracket; | |
996 | procedure Number_Fraction_Or_Star_Fill; | |
997 | procedure Star_Suppression; | |
998 | procedure Number_Fraction_Or_Dollar; | |
999 | procedure Leading_Dollar; | |
1000 | procedure Number_Fraction_Or_Pound; | |
1001 | procedure Leading_Pound; | |
1002 | procedure Picture; | |
1003 | procedure Floating_Plus; | |
1004 | procedure Floating_Minus; | |
1005 | procedure Picture_Plus; | |
1006 | procedure Picture_Minus; | |
1007 | procedure Picture_Bracket; | |
1008 | procedure Number; | |
1009 | procedure Optional_RHS_Sign; | |
1010 | procedure Picture_String; | |
fbf5a39b | 1011 | procedure Set_Debug; |
d23b8f57 RK |
1012 | |
1013 | ------------ | |
1014 | -- At_End -- | |
1015 | ------------ | |
1016 | ||
1017 | function At_End return Boolean is | |
1018 | begin | |
fbf5a39b | 1019 | Debug_Start ("At_End"); |
d23b8f57 RK |
1020 | return Index > Pic.Picture.Length; |
1021 | end At_End; | |
1022 | ||
fbf5a39b AC |
1023 | -------------- |
1024 | -- Set_Debug-- | |
1025 | -------------- | |
1026 | ||
1027 | -- Needed to have a procedure to pass to pragma Debug | |
1028 | ||
1029 | procedure Set_Debug is | |
1030 | begin | |
1031 | -- Uncomment this line and make Debug a variable to enable debug | |
1032 | ||
1033 | -- Debug := True; | |
1034 | ||
1035 | null; | |
1036 | end Set_Debug; | |
1037 | ||
d23b8f57 RK |
1038 | ------------------- |
1039 | -- Debug_Integer -- | |
1040 | ------------------- | |
1041 | ||
0ae9f22f | 1042 | procedure Debug_Integer (Value : Integer; S : String) is |
d23b8f57 RK |
1043 | use Ada.Text_IO; -- needed for > |
1044 | ||
1045 | begin | |
1046 | if Debug and then Value > 0 then | |
1047 | if Ada.Text_IO.Col > 70 - S'Length then | |
1048 | Ada.Text_IO.New_Line; | |
1049 | end if; | |
1050 | ||
1051 | Ada.Text_IO.Put (' ' & S & Integer'Image (Value) & ','); | |
1052 | end if; | |
1053 | end Debug_Integer; | |
1054 | ||
1055 | ----------------- | |
1056 | -- Debug_Start -- | |
1057 | ----------------- | |
1058 | ||
1059 | procedure Debug_Start (Name : String) is | |
1060 | begin | |
1061 | if Debug then | |
1062 | Ada.Text_IO.Put_Line (" In " & Name & '.'); | |
1063 | end if; | |
1064 | end Debug_Start; | |
1065 | ||
1066 | ---------------------- | |
1067 | -- Floating_Bracket -- | |
1068 | ---------------------- | |
1069 | ||
1070 | -- Note that Floating_Bracket is only called with an acceptable | |
1071 | -- prefix. But we don't set Okay, because we must end with a '>'. | |
1072 | ||
1073 | procedure Floating_Bracket is | |
1074 | begin | |
1075 | Debug_Start ("Floating_Bracket"); | |
fbf5a39b | 1076 | |
a2cb348e | 1077 | -- Two different floats not allowed |
fbf5a39b AC |
1078 | |
1079 | if Pic.Floater /= '!' and then Pic.Floater /= '<' then | |
1080 | raise Picture_Error; | |
1081 | ||
1082 | else | |
1083 | Pic.Floater := '<'; | |
1084 | end if; | |
1085 | ||
d23b8f57 RK |
1086 | Pic.End_Float := Index; |
1087 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
1088 | ||
1089 | -- First bracket wasn't counted... | |
1090 | ||
1091 | Skip; -- known '<' | |
1092 | ||
1093 | loop | |
1094 | if At_End then | |
1095 | return; | |
1096 | end if; | |
1097 | ||
1098 | case Look is | |
1099 | ||
1100 | when '_' | '0' | '/' => | |
1101 | Pic.End_Float := Index; | |
1102 | Skip; | |
1103 | ||
1104 | when 'B' | 'b' => | |
1105 | Pic.End_Float := Index; | |
1106 | Pic.Picture.Expanded (Index) := 'b'; | |
1107 | Skip; | |
1108 | ||
1109 | when '<' => | |
1110 | Pic.End_Float := Index; | |
1111 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
1112 | Skip; | |
1113 | ||
1114 | when '9' => | |
1115 | Number_Completion; | |
1116 | ||
1117 | when '$' => | |
1118 | Leading_Dollar; | |
1119 | ||
1120 | when '#' => | |
1121 | Leading_Pound; | |
1122 | ||
1123 | when 'V' | 'v' | '.' => | |
1124 | Pic.Radix_Position := Index; | |
1125 | Skip; | |
1126 | Number_Fraction_Or_Bracket; | |
1127 | return; | |
1128 | ||
1129 | when others => | |
1130 | return; | |
1131 | end case; | |
1132 | end loop; | |
1133 | end Floating_Bracket; | |
1134 | ||
d23b8f57 RK |
1135 | -------------------- |
1136 | -- Floating_Minus -- | |
1137 | -------------------- | |
1138 | ||
1139 | procedure Floating_Minus is | |
1140 | begin | |
1141 | Debug_Start ("Floating_Minus"); | |
1142 | ||
1143 | loop | |
1144 | if At_End then | |
1145 | return; | |
1146 | end if; | |
1147 | ||
1148 | case Look is | |
1149 | when '_' | '0' | '/' => | |
1150 | Pic.End_Float := Index; | |
1151 | Skip; | |
1152 | ||
1153 | when 'B' | 'b' => | |
1154 | Pic.End_Float := Index; | |
1155 | Pic.Picture.Expanded (Index) := 'b'; | |
1156 | Skip; | |
1157 | ||
1158 | when '-' => | |
1159 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
1160 | Pic.End_Float := Index; | |
1161 | Skip; | |
1162 | ||
1163 | when '9' => | |
1164 | Number_Completion; | |
1165 | return; | |
1166 | ||
1167 | when '.' | 'V' | 'v' => | |
1168 | Pic.Radix_Position := Index; | |
1169 | Skip; -- Radix | |
1170 | ||
1171 | while Is_Insert loop | |
1172 | Skip; | |
1173 | end loop; | |
1174 | ||
1175 | if At_End then | |
1176 | return; | |
1177 | end if; | |
1178 | ||
1179 | if Look = '-' then | |
1180 | loop | |
1181 | if At_End then | |
1182 | return; | |
1183 | end if; | |
1184 | ||
1185 | case Look is | |
1186 | ||
1187 | when '-' => | |
1188 | Pic.Max_Trailing_Digits := | |
1189 | Pic.Max_Trailing_Digits + 1; | |
1190 | Pic.End_Float := Index; | |
1191 | Skip; | |
1192 | ||
1193 | when '_' | '0' | '/' => | |
1194 | Skip; | |
1195 | ||
1196 | when 'B' | 'b' => | |
1197 | Pic.Picture.Expanded (Index) := 'b'; | |
1198 | Skip; | |
1199 | ||
1200 | when others => | |
1201 | return; | |
1202 | ||
1203 | end case; | |
1204 | end loop; | |
1205 | ||
1206 | else | |
1207 | Number_Completion; | |
1208 | end if; | |
1209 | ||
1210 | return; | |
1211 | ||
1212 | when others => | |
1213 | return; | |
1214 | end case; | |
1215 | end loop; | |
1216 | end Floating_Minus; | |
1217 | ||
1218 | ------------------- | |
1219 | -- Floating_Plus -- | |
1220 | ------------------- | |
1221 | ||
1222 | procedure Floating_Plus is | |
1223 | begin | |
1224 | Debug_Start ("Floating_Plus"); | |
1225 | ||
1226 | loop | |
1227 | if At_End then | |
1228 | return; | |
1229 | end if; | |
1230 | ||
1231 | case Look is | |
1232 | when '_' | '0' | '/' => | |
1233 | Pic.End_Float := Index; | |
1234 | Skip; | |
1235 | ||
1236 | when 'B' | 'b' => | |
1237 | Pic.End_Float := Index; | |
1238 | Pic.Picture.Expanded (Index) := 'b'; | |
1239 | Skip; | |
1240 | ||
1241 | when '+' => | |
1242 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
1243 | Pic.End_Float := Index; | |
1244 | Skip; | |
1245 | ||
1246 | when '9' => | |
1247 | Number_Completion; | |
1248 | return; | |
1249 | ||
1250 | when '.' | 'V' | 'v' => | |
1251 | Pic.Radix_Position := Index; | |
1252 | Skip; -- Radix | |
1253 | ||
1254 | while Is_Insert loop | |
1255 | Skip; | |
1256 | end loop; | |
1257 | ||
1258 | if At_End then | |
1259 | return; | |
1260 | end if; | |
1261 | ||
1262 | if Look = '+' then | |
1263 | loop | |
1264 | if At_End then | |
1265 | return; | |
1266 | end if; | |
1267 | ||
1268 | case Look is | |
1269 | ||
1270 | when '+' => | |
1271 | Pic.Max_Trailing_Digits := | |
1272 | Pic.Max_Trailing_Digits + 1; | |
1273 | Pic.End_Float := Index; | |
1274 | Skip; | |
1275 | ||
1276 | when '_' | '0' | '/' => | |
1277 | Skip; | |
1278 | ||
1279 | when 'B' | 'b' => | |
1280 | Pic.Picture.Expanded (Index) := 'b'; | |
1281 | Skip; | |
1282 | ||
1283 | when others => | |
1284 | return; | |
1285 | ||
1286 | end case; | |
1287 | end loop; | |
1288 | ||
1289 | else | |
1290 | Number_Completion; | |
1291 | end if; | |
1292 | ||
1293 | return; | |
1294 | ||
1295 | when others => | |
1296 | return; | |
1297 | ||
1298 | end case; | |
1299 | end loop; | |
1300 | end Floating_Plus; | |
1301 | ||
1302 | --------------- | |
1303 | -- Is_Insert -- | |
1304 | --------------- | |
1305 | ||
1306 | function Is_Insert return Boolean is | |
1307 | begin | |
1308 | if At_End then | |
1309 | return False; | |
1310 | end if; | |
1311 | ||
1312 | case Pic.Picture.Expanded (Index) is | |
1313 | ||
1314 | when '_' | '0' | '/' => return True; | |
1315 | ||
1316 | when 'B' | 'b' => | |
1317 | Pic.Picture.Expanded (Index) := 'b'; -- canonical | |
1318 | return True; | |
1319 | ||
1320 | when others => return False; | |
1321 | end case; | |
1322 | end Is_Insert; | |
1323 | ||
1324 | -------------------- | |
1325 | -- Leading_Dollar -- | |
1326 | -------------------- | |
1327 | ||
1328 | -- Note that Leading_Dollar can be called in either State. | |
1329 | -- It will set state to Okay only if a 9 or (second) $ | |
1330 | -- is encountered. | |
1331 | ||
1332 | -- Also notice the tricky bit with State and Zero_Suppression. | |
1333 | -- Zero_Suppression is Picture_Error if a '$' or a '9' has been | |
1334 | -- encountered, exactly the cases where State has been set. | |
1335 | ||
1336 | procedure Leading_Dollar is | |
1337 | begin | |
1338 | Debug_Start ("Leading_Dollar"); | |
1339 | ||
fbf5a39b AC |
1340 | -- Treat as a floating dollar, and unwind otherwise |
1341 | ||
1342 | if Pic.Floater /= '!' and then Pic.Floater /= '$' then | |
1343 | ||
1344 | -- Two floats not allowed | |
1345 | ||
1346 | raise Picture_Error; | |
1347 | ||
1348 | else | |
1349 | Pic.Floater := '$'; | |
1350 | end if; | |
d23b8f57 | 1351 | |
d23b8f57 RK |
1352 | Pic.Start_Currency := Index; |
1353 | Pic.End_Currency := Index; | |
1354 | Pic.Start_Float := Index; | |
1355 | Pic.End_Float := Index; | |
1356 | ||
1357 | -- Don't increment Pic.Max_Leading_Digits, we need one "real" | |
1358 | -- currency place. | |
1359 | ||
1360 | Skip; -- known '$' | |
1361 | ||
1362 | loop | |
1363 | if At_End then | |
1364 | return; | |
1365 | end if; | |
1366 | ||
1367 | case Look is | |
1368 | ||
1369 | when '_' | '0' | '/' => | |
1370 | Pic.End_Float := Index; | |
1371 | Skip; | |
1372 | ||
1373 | -- A trailing insertion character is not part of the | |
1374 | -- floating currency, so need to look ahead. | |
1375 | ||
1376 | if Look /= '$' then | |
1377 | Pic.End_Float := Pic.End_Float - 1; | |
1378 | end if; | |
1379 | ||
1380 | when 'B' | 'b' => | |
1381 | Pic.End_Float := Index; | |
1382 | Pic.Picture.Expanded (Index) := 'b'; | |
1383 | Skip; | |
1384 | ||
1385 | when 'Z' | 'z' => | |
1386 | Pic.Picture.Expanded (Index) := 'Z'; -- consistency | |
1387 | ||
1388 | if State = Okay then | |
1389 | raise Picture_Error; | |
1390 | else | |
fbf5a39b | 1391 | -- Overwrite Floater and Start_Float |
d23b8f57 | 1392 | |
fbf5a39b AC |
1393 | Pic.Floater := 'Z'; |
1394 | Pic.Start_Float := Index; | |
d23b8f57 RK |
1395 | Zero_Suppression; |
1396 | end if; | |
1397 | ||
1398 | when '*' => | |
1399 | if State = Okay then | |
1400 | raise Picture_Error; | |
1401 | else | |
fbf5a39b | 1402 | -- Overwrite Floater and Start_Float |
a2cb348e | 1403 | |
fbf5a39b AC |
1404 | Pic.Floater := '*'; |
1405 | Pic.Start_Float := Index; | |
d23b8f57 RK |
1406 | Star_Suppression; |
1407 | end if; | |
1408 | ||
1409 | when '$' => | |
1410 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
1411 | Pic.End_Float := Index; | |
1412 | Pic.End_Currency := Index; | |
1413 | Set_State (Okay); Skip; | |
1414 | ||
1415 | when '9' => | |
1416 | if State /= Okay then | |
1417 | Pic.Floater := '!'; | |
1418 | Pic.Start_Float := Invalid_Position; | |
1419 | Pic.End_Float := Invalid_Position; | |
1420 | end if; | |
1421 | ||
a2cb348e | 1422 | -- A single dollar does not a floating make |
d23b8f57 RK |
1423 | |
1424 | Number_Completion; | |
1425 | return; | |
1426 | ||
1427 | when 'V' | 'v' | '.' => | |
1428 | if State /= Okay then | |
1429 | Pic.Floater := '!'; | |
1430 | Pic.Start_Float := Invalid_Position; | |
1431 | Pic.End_Float := Invalid_Position; | |
1432 | end if; | |
1433 | ||
a2cb348e RD |
1434 | -- Only one dollar before the sign is okay, but doesn't |
1435 | -- float. | |
d23b8f57 RK |
1436 | |
1437 | Pic.Radix_Position := Index; | |
1438 | Skip; | |
1439 | Number_Fraction_Or_Dollar; | |
1440 | return; | |
1441 | ||
1442 | when others => | |
1443 | return; | |
1444 | ||
1445 | end case; | |
1446 | end loop; | |
1447 | end Leading_Dollar; | |
1448 | ||
1449 | ------------------- | |
1450 | -- Leading_Pound -- | |
1451 | ------------------- | |
1452 | ||
1453 | -- This one is complex! A Leading_Pound can be fixed or floating, | |
1454 | -- but in some cases the decision has to be deferred until we leave | |
1455 | -- this procedure. Also note that Leading_Pound can be called in | |
1456 | -- either State. | |
1457 | ||
1458 | -- It will set state to Okay only if a 9 or (second) # is | |
1459 | -- encountered. | |
1460 | ||
1461 | -- One Last note: In ambiguous cases, the currency is treated as | |
1462 | -- floating unless there is only one '#'. | |
1463 | ||
1464 | procedure Leading_Pound is | |
1465 | ||
1466 | Inserts : Boolean := False; | |
1467 | -- Set to True if a '_', '0', '/', 'B', or 'b' is encountered | |
1468 | ||
1469 | Must_Float : Boolean := False; | |
a2cb348e | 1470 | -- Set to true if a '#' occurs after an insert |
d23b8f57 RK |
1471 | |
1472 | begin | |
1473 | Debug_Start ("Leading_Pound"); | |
1474 | ||
1475 | -- Treat as a floating currency. If it isn't, this will be | |
1476 | -- overwritten later. | |
1477 | ||
fbf5a39b AC |
1478 | if Pic.Floater /= '!' and then Pic.Floater /= '#' then |
1479 | ||
1480 | -- Two floats not allowed | |
1481 | ||
1482 | raise Picture_Error; | |
1483 | ||
1484 | else | |
1485 | Pic.Floater := '#'; | |
1486 | end if; | |
d23b8f57 RK |
1487 | |
1488 | Pic.Start_Currency := Index; | |
1489 | Pic.End_Currency := Index; | |
1490 | Pic.Start_Float := Index; | |
1491 | Pic.End_Float := Index; | |
1492 | ||
1493 | -- Don't increment Pic.Max_Leading_Digits, we need one "real" | |
1494 | -- currency place. | |
1495 | ||
1496 | Pic.Max_Currency_Digits := 1; -- we've seen one. | |
1497 | ||
1498 | Skip; -- known '#' | |
1499 | ||
1500 | loop | |
1501 | if At_End then | |
1502 | return; | |
1503 | end if; | |
1504 | ||
1505 | case Look is | |
1506 | ||
1507 | when '_' | '0' | '/' => | |
1508 | Pic.End_Float := Index; | |
1509 | Inserts := True; | |
1510 | Skip; | |
1511 | ||
1512 | when 'B' | 'b' => | |
1513 | Pic.Picture.Expanded (Index) := 'b'; | |
1514 | Pic.End_Float := Index; | |
1515 | Inserts := True; | |
1516 | Skip; | |
1517 | ||
1518 | when 'Z' | 'z' => | |
1519 | Pic.Picture.Expanded (Index) := 'Z'; -- consistency | |
1520 | ||
1521 | if Must_Float then | |
1522 | raise Picture_Error; | |
1523 | else | |
1524 | Pic.Max_Leading_Digits := 0; | |
1525 | ||
fbf5a39b | 1526 | -- Overwrite Floater and Start_Float |
d23b8f57 | 1527 | |
fbf5a39b AC |
1528 | Pic.Floater := 'Z'; |
1529 | Pic.Start_Float := Index; | |
d23b8f57 RK |
1530 | Zero_Suppression; |
1531 | end if; | |
1532 | ||
1533 | when '*' => | |
1534 | if Must_Float then | |
1535 | raise Picture_Error; | |
1536 | else | |
1537 | Pic.Max_Leading_Digits := 0; | |
1538 | ||
fbf5a39b AC |
1539 | -- Overwrite Floater and Start_Float |
1540 | Pic.Floater := '*'; | |
1541 | Pic.Start_Float := Index; | |
d23b8f57 RK |
1542 | Star_Suppression; |
1543 | end if; | |
1544 | ||
1545 | when '#' => | |
1546 | if Inserts then | |
1547 | Must_Float := True; | |
1548 | end if; | |
1549 | ||
1550 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
1551 | Pic.End_Float := Index; | |
1552 | Pic.End_Currency := Index; | |
1553 | Set_State (Okay); | |
1554 | Skip; | |
1555 | ||
1556 | when '9' => | |
1557 | if State /= Okay then | |
1558 | ||
a2cb348e | 1559 | -- A single '#' doesn't float |
d23b8f57 RK |
1560 | |
1561 | Pic.Floater := '!'; | |
1562 | Pic.Start_Float := Invalid_Position; | |
1563 | Pic.End_Float := Invalid_Position; | |
1564 | end if; | |
1565 | ||
1566 | Number_Completion; | |
1567 | return; | |
1568 | ||
1569 | when 'V' | 'v' | '.' => | |
1570 | if State /= Okay then | |
1571 | Pic.Floater := '!'; | |
1572 | Pic.Start_Float := Invalid_Position; | |
1573 | Pic.End_Float := Invalid_Position; | |
1574 | end if; | |
1575 | ||
a2cb348e RD |
1576 | -- Only one pound before the sign is okay, but doesn't |
1577 | -- float. | |
d23b8f57 RK |
1578 | |
1579 | Pic.Radix_Position := Index; | |
1580 | Skip; | |
1581 | Number_Fraction_Or_Pound; | |
1582 | return; | |
1583 | ||
1584 | when others => | |
1585 | return; | |
1586 | end case; | |
1587 | end loop; | |
1588 | end Leading_Pound; | |
1589 | ||
1590 | ---------- | |
1591 | -- Look -- | |
1592 | ---------- | |
1593 | ||
1594 | function Look return Character is | |
1595 | begin | |
1596 | if At_End then | |
1597 | raise Picture_Error; | |
1598 | end if; | |
1599 | ||
1600 | return Pic.Picture.Expanded (Index); | |
1601 | end Look; | |
1602 | ||
1603 | ------------ | |
1604 | -- Number -- | |
1605 | ------------ | |
1606 | ||
1607 | procedure Number is | |
1608 | begin | |
1609 | Debug_Start ("Number"); | |
1610 | ||
1611 | loop | |
1612 | ||
1613 | case Look is | |
1614 | when '_' | '0' | '/' => | |
1615 | Skip; | |
1616 | ||
1617 | when 'B' | 'b' => | |
1618 | Pic.Picture.Expanded (Index) := 'b'; | |
1619 | Skip; | |
1620 | ||
1621 | when '9' => | |
1622 | Computed_BWZ := False; | |
1623 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
1624 | Set_State (Okay); | |
1625 | Skip; | |
1626 | ||
1627 | when '.' | 'V' | 'v' => | |
1628 | Pic.Radix_Position := Index; | |
1629 | Skip; | |
1630 | Number_Fraction; | |
1631 | return; | |
1632 | ||
1633 | when others => | |
1634 | return; | |
1635 | ||
1636 | end case; | |
1637 | ||
1638 | if At_End then | |
1639 | return; | |
1640 | end if; | |
1641 | ||
a2cb348e | 1642 | -- Will return in Okay state if a '9' was seen |
d23b8f57 RK |
1643 | |
1644 | end loop; | |
1645 | end Number; | |
1646 | ||
1647 | ----------------------- | |
1648 | -- Number_Completion -- | |
1649 | ----------------------- | |
1650 | ||
1651 | procedure Number_Completion is | |
1652 | begin | |
1653 | Debug_Start ("Number_Completion"); | |
1654 | ||
1655 | while not At_End loop | |
1656 | case Look is | |
1657 | ||
1658 | when '_' | '0' | '/' => | |
1659 | Skip; | |
1660 | ||
1661 | when 'B' | 'b' => | |
1662 | Pic.Picture.Expanded (Index) := 'b'; | |
1663 | Skip; | |
1664 | ||
1665 | when '9' => | |
1666 | Computed_BWZ := False; | |
1667 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
1668 | Set_State (Okay); | |
1669 | Skip; | |
1670 | ||
1671 | when 'V' | 'v' | '.' => | |
1672 | Pic.Radix_Position := Index; | |
1673 | Skip; | |
1674 | Number_Fraction; | |
1675 | return; | |
1676 | ||
1677 | when others => | |
1678 | return; | |
1679 | end case; | |
1680 | end loop; | |
1681 | end Number_Completion; | |
1682 | ||
1683 | --------------------- | |
1684 | -- Number_Fraction -- | |
1685 | --------------------- | |
1686 | ||
1687 | procedure Number_Fraction is | |
1688 | begin | |
1689 | -- Note that number fraction can be called in either State. | |
1690 | -- It will set state to Valid only if a 9 is encountered. | |
1691 | ||
1692 | Debug_Start ("Number_Fraction"); | |
1693 | ||
1694 | loop | |
1695 | if At_End then | |
1696 | return; | |
1697 | end if; | |
1698 | ||
1699 | case Look is | |
1700 | when '_' | '0' | '/' => | |
1701 | Skip; | |
1702 | ||
1703 | when 'B' | 'b' => | |
1704 | Pic.Picture.Expanded (Index) := 'b'; | |
1705 | Skip; | |
1706 | ||
1707 | when '9' => | |
1708 | Computed_BWZ := False; | |
1709 | Pic.Max_Trailing_Digits := Pic.Max_Trailing_Digits + 1; | |
1710 | Set_State (Okay); Skip; | |
1711 | ||
1712 | when others => | |
1713 | return; | |
1714 | end case; | |
1715 | end loop; | |
1716 | end Number_Fraction; | |
1717 | ||
1718 | -------------------------------- | |
1719 | -- Number_Fraction_Or_Bracket -- | |
1720 | -------------------------------- | |
1721 | ||
1722 | procedure Number_Fraction_Or_Bracket is | |
1723 | begin | |
1724 | Debug_Start ("Number_Fraction_Or_Bracket"); | |
1725 | ||
1726 | loop | |
1727 | if At_End then | |
1728 | return; | |
1729 | end if; | |
1730 | ||
1731 | case Look is | |
1732 | ||
1733 | when '_' | '0' | '/' => Skip; | |
1734 | ||
1735 | when 'B' | 'b' => | |
1736 | Pic.Picture.Expanded (Index) := 'b'; | |
1737 | Skip; | |
1738 | ||
1739 | when '<' => | |
1740 | Pic.Max_Trailing_Digits := Pic.Max_Trailing_Digits + 1; | |
1741 | Pic.End_Float := Index; | |
1742 | Skip; | |
1743 | ||
1744 | loop | |
1745 | if At_End then | |
1746 | return; | |
1747 | end if; | |
1748 | ||
1749 | case Look is | |
1750 | when '_' | '0' | '/' => | |
1751 | Skip; | |
1752 | ||
1753 | when 'B' | 'b' => | |
1754 | Pic.Picture.Expanded (Index) := 'b'; | |
1755 | Skip; | |
1756 | ||
1757 | when '<' => | |
1758 | Pic.Max_Trailing_Digits := | |
1759 | Pic.Max_Trailing_Digits + 1; | |
1760 | Pic.End_Float := Index; | |
1761 | Skip; | |
1762 | ||
1763 | when others => | |
1764 | return; | |
1765 | end case; | |
1766 | end loop; | |
1767 | ||
1768 | when others => | |
1769 | Number_Fraction; | |
1770 | return; | |
1771 | end case; | |
1772 | end loop; | |
1773 | end Number_Fraction_Or_Bracket; | |
1774 | ||
1775 | ------------------------------- | |
1776 | -- Number_Fraction_Or_Dollar -- | |
1777 | ------------------------------- | |
1778 | ||
1779 | procedure Number_Fraction_Or_Dollar is | |
1780 | begin | |
1781 | Debug_Start ("Number_Fraction_Or_Dollar"); | |
1782 | ||
1783 | loop | |
1784 | if At_End then | |
1785 | return; | |
1786 | end if; | |
1787 | ||
1788 | case Look is | |
1789 | when '_' | '0' | '/' => | |
1790 | Skip; | |
1791 | ||
1792 | when 'B' | 'b' => | |
1793 | Pic.Picture.Expanded (Index) := 'b'; | |
1794 | Skip; | |
1795 | ||
1796 | when '$' => | |
1797 | Pic.Max_Trailing_Digits := Pic.Max_Trailing_Digits + 1; | |
1798 | Pic.End_Float := Index; | |
1799 | Skip; | |
1800 | ||
1801 | loop | |
1802 | if At_End then | |
1803 | return; | |
1804 | end if; | |
1805 | ||
1806 | case Look is | |
1807 | when '_' | '0' | '/' => | |
1808 | Skip; | |
1809 | ||
1810 | when 'B' | 'b' => | |
1811 | Pic.Picture.Expanded (Index) := 'b'; | |
1812 | Skip; | |
1813 | ||
1814 | when '$' => | |
1815 | Pic.Max_Trailing_Digits := | |
1816 | Pic.Max_Trailing_Digits + 1; | |
1817 | Pic.End_Float := Index; | |
1818 | Skip; | |
1819 | ||
1820 | when others => | |
1821 | return; | |
1822 | end case; | |
1823 | end loop; | |
1824 | ||
1825 | when others => | |
1826 | Number_Fraction; | |
1827 | return; | |
1828 | end case; | |
1829 | end loop; | |
1830 | end Number_Fraction_Or_Dollar; | |
1831 | ||
1832 | ------------------------------ | |
1833 | -- Number_Fraction_Or_Pound -- | |
1834 | ------------------------------ | |
1835 | ||
1836 | procedure Number_Fraction_Or_Pound is | |
1837 | begin | |
1838 | loop | |
1839 | if At_End then | |
1840 | return; | |
1841 | end if; | |
1842 | ||
1843 | case Look is | |
1844 | ||
1845 | when '_' | '0' | '/' => | |
1846 | Skip; | |
1847 | ||
1848 | when 'B' | 'b' => | |
1849 | Pic.Picture.Expanded (Index) := 'b'; | |
1850 | Skip; | |
1851 | ||
1852 | when '#' => | |
1853 | Pic.Max_Trailing_Digits := Pic.Max_Trailing_Digits + 1; | |
1854 | Pic.End_Float := Index; | |
1855 | Skip; | |
1856 | ||
1857 | loop | |
1858 | if At_End then | |
1859 | return; | |
1860 | end if; | |
1861 | ||
1862 | case Look is | |
1863 | ||
1864 | when '_' | '0' | '/' => | |
1865 | Skip; | |
1866 | ||
1867 | when 'B' | 'b' => | |
1868 | Pic.Picture.Expanded (Index) := 'b'; | |
1869 | Skip; | |
1870 | ||
1871 | when '#' => | |
1872 | Pic.Max_Trailing_Digits := | |
1873 | Pic.Max_Trailing_Digits + 1; | |
1874 | Pic.End_Float := Index; | |
1875 | Skip; | |
1876 | ||
1877 | when others => | |
1878 | return; | |
1879 | ||
1880 | end case; | |
1881 | end loop; | |
1882 | ||
1883 | when others => | |
1884 | Number_Fraction; | |
1885 | return; | |
1886 | ||
1887 | end case; | |
1888 | end loop; | |
1889 | end Number_Fraction_Or_Pound; | |
1890 | ||
1891 | ---------------------------------- | |
1892 | -- Number_Fraction_Or_Star_Fill -- | |
1893 | ---------------------------------- | |
1894 | ||
1895 | procedure Number_Fraction_Or_Star_Fill is | |
1896 | begin | |
1897 | Debug_Start ("Number_Fraction_Or_Star_Fill"); | |
1898 | ||
1899 | loop | |
1900 | if At_End then | |
1901 | return; | |
1902 | end if; | |
1903 | ||
1904 | case Look is | |
1905 | ||
1906 | when '_' | '0' | '/' => | |
1907 | Skip; | |
1908 | ||
1909 | when 'B' | 'b' => | |
1910 | Pic.Picture.Expanded (Index) := 'b'; | |
1911 | Skip; | |
1912 | ||
1913 | when '*' => | |
1914 | Pic.Star_Fill := True; | |
1915 | Pic.Max_Trailing_Digits := Pic.Max_Trailing_Digits + 1; | |
1916 | Pic.End_Float := Index; | |
1917 | Skip; | |
1918 | ||
1919 | loop | |
1920 | if At_End then | |
1921 | return; | |
1922 | end if; | |
1923 | ||
1924 | case Look is | |
1925 | ||
1926 | when '_' | '0' | '/' => | |
1927 | Skip; | |
1928 | ||
1929 | when 'B' | 'b' => | |
1930 | Pic.Picture.Expanded (Index) := 'b'; | |
1931 | Skip; | |
1932 | ||
1933 | when '*' => | |
1934 | Pic.Star_Fill := True; | |
1935 | Pic.Max_Trailing_Digits := | |
1936 | Pic.Max_Trailing_Digits + 1; | |
1937 | Pic.End_Float := Index; | |
1938 | Skip; | |
1939 | ||
1940 | when others => | |
1941 | return; | |
1942 | end case; | |
1943 | end loop; | |
1944 | ||
1945 | when others => | |
1946 | Number_Fraction; | |
1947 | return; | |
1948 | ||
1949 | end case; | |
1950 | end loop; | |
1951 | end Number_Fraction_Or_Star_Fill; | |
1952 | ||
1953 | ------------------------------- | |
1954 | -- Number_Fraction_Or_Z_Fill -- | |
1955 | ------------------------------- | |
1956 | ||
1957 | procedure Number_Fraction_Or_Z_Fill is | |
1958 | begin | |
1959 | Debug_Start ("Number_Fraction_Or_Z_Fill"); | |
1960 | ||
1961 | loop | |
1962 | if At_End then | |
1963 | return; | |
1964 | end if; | |
1965 | ||
1966 | case Look is | |
1967 | ||
1968 | when '_' | '0' | '/' => | |
1969 | Skip; | |
1970 | ||
1971 | when 'B' | 'b' => | |
1972 | Pic.Picture.Expanded (Index) := 'b'; | |
1973 | Skip; | |
1974 | ||
1975 | when 'Z' | 'z' => | |
1976 | Pic.Max_Trailing_Digits := Pic.Max_Trailing_Digits + 1; | |
1977 | Pic.End_Float := Index; | |
1978 | Pic.Picture.Expanded (Index) := 'Z'; -- consistency | |
1979 | ||
1980 | Skip; | |
1981 | ||
1982 | loop | |
1983 | if At_End then | |
1984 | return; | |
1985 | end if; | |
1986 | ||
1987 | case Look is | |
1988 | ||
1989 | when '_' | '0' | '/' => | |
1990 | Skip; | |
1991 | ||
1992 | when 'B' | 'b' => | |
1993 | Pic.Picture.Expanded (Index) := 'b'; | |
1994 | Skip; | |
1995 | ||
1996 | when 'Z' | 'z' => | |
1997 | Pic.Picture.Expanded (Index) := 'Z'; -- consistency | |
1998 | ||
1999 | Pic.Max_Trailing_Digits := | |
2000 | Pic.Max_Trailing_Digits + 1; | |
2001 | Pic.End_Float := Index; | |
2002 | Skip; | |
2003 | ||
2004 | when others => | |
2005 | return; | |
2006 | end case; | |
2007 | end loop; | |
2008 | ||
2009 | when others => | |
2010 | Number_Fraction; | |
2011 | return; | |
2012 | end case; | |
2013 | end loop; | |
2014 | end Number_Fraction_Or_Z_Fill; | |
2015 | ||
2016 | ----------------------- | |
2017 | -- Optional_RHS_Sign -- | |
2018 | ----------------------- | |
2019 | ||
2020 | procedure Optional_RHS_Sign is | |
2021 | begin | |
2022 | Debug_Start ("Optional_RHS_Sign"); | |
2023 | ||
2024 | if At_End then | |
2025 | return; | |
2026 | end if; | |
2027 | ||
2028 | case Look is | |
2029 | ||
2030 | when '+' | '-' => | |
2031 | Pic.Sign_Position := Index; | |
2032 | Skip; | |
2033 | return; | |
2034 | ||
2035 | when 'C' | 'c' => | |
2036 | Pic.Sign_Position := Index; | |
2037 | Pic.Picture.Expanded (Index) := 'C'; | |
2038 | Skip; | |
2039 | ||
2040 | if Look = 'R' or Look = 'r' then | |
2041 | Pic.Second_Sign := Index; | |
2042 | Pic.Picture.Expanded (Index) := 'R'; | |
2043 | Skip; | |
2044 | ||
2045 | else | |
2046 | raise Picture_Error; | |
2047 | end if; | |
2048 | ||
2049 | return; | |
2050 | ||
2051 | when 'D' | 'd' => | |
2052 | Pic.Sign_Position := Index; | |
2053 | Pic.Picture.Expanded (Index) := 'D'; | |
2054 | Skip; | |
2055 | ||
2056 | if Look = 'B' or Look = 'b' then | |
2057 | Pic.Second_Sign := Index; | |
2058 | Pic.Picture.Expanded (Index) := 'B'; | |
2059 | Skip; | |
2060 | ||
2061 | else | |
2062 | raise Picture_Error; | |
2063 | end if; | |
2064 | ||
2065 | return; | |
2066 | ||
2067 | when '>' => | |
2068 | if Pic.Picture.Expanded (Pic.Sign_Position) = '<' then | |
2069 | Pic.Second_Sign := Index; | |
2070 | Skip; | |
2071 | ||
2072 | else | |
2073 | raise Picture_Error; | |
2074 | end if; | |
2075 | ||
2076 | when others => | |
2077 | return; | |
2078 | ||
2079 | end case; | |
2080 | end Optional_RHS_Sign; | |
2081 | ||
2082 | ------------- | |
2083 | -- Picture -- | |
2084 | ------------- | |
2085 | ||
a2cb348e | 2086 | -- Note that Picture can be called in either State |
d23b8f57 RK |
2087 | |
2088 | -- It will set state to Valid only if a 9 is encountered or floating | |
2089 | -- currency is called. | |
2090 | ||
2091 | procedure Picture is | |
2092 | begin | |
2093 | Debug_Start ("Picture"); | |
2094 | ||
2095 | loop | |
2096 | if At_End then | |
2097 | return; | |
2098 | end if; | |
2099 | ||
2100 | case Look is | |
2101 | ||
2102 | when '_' | '0' | '/' => | |
2103 | Skip; | |
2104 | ||
2105 | when 'B' | 'b' => | |
2106 | Pic.Picture.Expanded (Index) := 'b'; | |
2107 | Skip; | |
2108 | ||
2109 | when '$' => | |
2110 | Leading_Dollar; | |
2111 | return; | |
2112 | ||
2113 | when '#' => | |
2114 | Leading_Pound; | |
2115 | return; | |
2116 | ||
2117 | when '9' => | |
2118 | Computed_BWZ := False; | |
2119 | Set_State (Okay); | |
2120 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
2121 | Skip; | |
2122 | ||
2123 | when 'V' | 'v' | '.' => | |
2124 | Pic.Radix_Position := Index; | |
2125 | Skip; | |
2126 | Number_Fraction; | |
2127 | Trailing_Currency; | |
2128 | return; | |
2129 | ||
2130 | when others => | |
2131 | return; | |
2132 | ||
2133 | end case; | |
2134 | end loop; | |
2135 | end Picture; | |
2136 | ||
2137 | --------------------- | |
2138 | -- Picture_Bracket -- | |
2139 | --------------------- | |
2140 | ||
2141 | procedure Picture_Bracket is | |
2142 | begin | |
2143 | Pic.Sign_Position := Index; | |
2144 | Debug_Start ("Picture_Bracket"); | |
2145 | Pic.Sign_Position := Index; | |
2146 | ||
a2cb348e | 2147 | -- Treat as a floating sign, and unwind otherwise |
d23b8f57 RK |
2148 | |
2149 | Pic.Floater := '<'; | |
2150 | Pic.Start_Float := Index; | |
2151 | Pic.End_Float := Index; | |
2152 | ||
2153 | -- Don't increment Pic.Max_Leading_Digits, we need one "real" | |
2154 | -- sign place. | |
2155 | ||
2156 | Skip; -- Known Bracket | |
2157 | ||
2158 | loop | |
2159 | case Look is | |
2160 | ||
2161 | when '_' | '0' | '/' => | |
2162 | Pic.End_Float := Index; | |
2163 | Skip; | |
2164 | ||
2165 | when 'B' | 'b' => | |
2166 | Pic.End_Float := Index; | |
2167 | Pic.Picture.Expanded (Index) := 'b'; | |
2168 | Skip; | |
2169 | ||
2170 | when '<' => | |
2171 | Set_State (Okay); -- "<<>" is enough. | |
2172 | Floating_Bracket; | |
2173 | Trailing_Currency; | |
2174 | Trailing_Bracket; | |
2175 | return; | |
2176 | ||
2177 | when '$' | '#' | '9' | '*' => | |
2178 | if State /= Okay then | |
2179 | Pic.Floater := '!'; | |
2180 | Pic.Start_Float := Invalid_Position; | |
2181 | Pic.End_Float := Invalid_Position; | |
2182 | end if; | |
2183 | ||
2184 | Picture; | |
2185 | Trailing_Bracket; | |
2186 | Set_State (Okay); | |
2187 | return; | |
2188 | ||
2189 | when '.' | 'V' | 'v' => | |
2190 | if State /= Okay then | |
2191 | Pic.Floater := '!'; | |
2192 | Pic.Start_Float := Invalid_Position; | |
2193 | Pic.End_Float := Invalid_Position; | |
2194 | end if; | |
2195 | ||
2196 | -- Don't assume that state is okay, haven't seen a digit | |
2197 | ||
2198 | Picture; | |
2199 | Trailing_Bracket; | |
2200 | return; | |
2201 | ||
2202 | when others => | |
2203 | raise Picture_Error; | |
2204 | ||
2205 | end case; | |
2206 | end loop; | |
2207 | end Picture_Bracket; | |
2208 | ||
2209 | ------------------- | |
2210 | -- Picture_Minus -- | |
2211 | ------------------- | |
2212 | ||
2213 | procedure Picture_Minus is | |
2214 | begin | |
2215 | Debug_Start ("Picture_Minus"); | |
2216 | ||
2217 | Pic.Sign_Position := Index; | |
2218 | ||
a2cb348e | 2219 | -- Treat as a floating sign, and unwind otherwise |
d23b8f57 RK |
2220 | |
2221 | Pic.Floater := '-'; | |
2222 | Pic.Start_Float := Index; | |
2223 | Pic.End_Float := Index; | |
2224 | ||
2225 | -- Don't increment Pic.Max_Leading_Digits, we need one "real" | |
2226 | -- sign place. | |
2227 | ||
2228 | Skip; -- Known Minus | |
2229 | ||
2230 | loop | |
2231 | case Look is | |
2232 | ||
2233 | when '_' | '0' | '/' => | |
2234 | Pic.End_Float := Index; | |
2235 | Skip; | |
2236 | ||
2237 | when 'B' | 'b' => | |
2238 | Pic.End_Float := Index; | |
2239 | Pic.Picture.Expanded (Index) := 'b'; | |
2240 | Skip; | |
2241 | ||
2242 | when '-' => | |
2243 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
2244 | Pic.End_Float := Index; | |
2245 | Skip; | |
2246 | Set_State (Okay); -- "-- " is enough. | |
2247 | Floating_Minus; | |
2248 | Trailing_Currency; | |
2249 | return; | |
2250 | ||
2251 | when '$' | '#' | '9' | '*' => | |
2252 | if State /= Okay then | |
2253 | Pic.Floater := '!'; | |
2254 | Pic.Start_Float := Invalid_Position; | |
2255 | Pic.End_Float := Invalid_Position; | |
2256 | end if; | |
2257 | ||
2258 | Picture; | |
2259 | Set_State (Okay); | |
2260 | return; | |
2261 | ||
2262 | when 'Z' | 'z' => | |
2263 | ||
a2cb348e | 2264 | -- Can't have Z and a floating sign |
d23b8f57 RK |
2265 | |
2266 | if State = Okay then | |
2267 | Set_State (Reject); | |
2268 | end if; | |
2269 | ||
2270 | Pic.Picture.Expanded (Index) := 'Z'; -- consistency | |
2271 | Zero_Suppression; | |
2272 | Trailing_Currency; | |
2273 | Optional_RHS_Sign; | |
2274 | return; | |
2275 | ||
2276 | when '.' | 'V' | 'v' => | |
2277 | if State /= Okay then | |
2278 | Pic.Floater := '!'; | |
2279 | Pic.Start_Float := Invalid_Position; | |
2280 | Pic.End_Float := Invalid_Position; | |
2281 | end if; | |
2282 | ||
a2cb348e | 2283 | -- Don't assume that state is okay, haven't seen a digit |
d23b8f57 RK |
2284 | |
2285 | Picture; | |
2286 | return; | |
2287 | ||
2288 | when others => | |
2289 | return; | |
2290 | ||
2291 | end case; | |
2292 | end loop; | |
2293 | end Picture_Minus; | |
2294 | ||
2295 | ------------------ | |
2296 | -- Picture_Plus -- | |
2297 | ------------------ | |
2298 | ||
2299 | procedure Picture_Plus is | |
2300 | begin | |
2301 | Debug_Start ("Picture_Plus"); | |
2302 | Pic.Sign_Position := Index; | |
2303 | ||
a2cb348e | 2304 | -- Treat as a floating sign, and unwind otherwise |
d23b8f57 RK |
2305 | |
2306 | Pic.Floater := '+'; | |
2307 | Pic.Start_Float := Index; | |
2308 | Pic.End_Float := Index; | |
2309 | ||
2310 | -- Don't increment Pic.Max_Leading_Digits, we need one "real" | |
2311 | -- sign place. | |
2312 | ||
2313 | Skip; -- Known Plus | |
2314 | ||
2315 | loop | |
2316 | case Look is | |
2317 | ||
2318 | when '_' | '0' | '/' => | |
2319 | Pic.End_Float := Index; | |
2320 | Skip; | |
2321 | ||
2322 | when 'B' | 'b' => | |
2323 | Pic.End_Float := Index; | |
2324 | Pic.Picture.Expanded (Index) := 'b'; | |
2325 | Skip; | |
2326 | ||
2327 | when '+' => | |
2328 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
2329 | Pic.End_Float := Index; | |
2330 | Skip; | |
a2cb348e | 2331 | Set_State (Okay); -- "++" is enough |
d23b8f57 RK |
2332 | Floating_Plus; |
2333 | Trailing_Currency; | |
2334 | return; | |
2335 | ||
2336 | when '$' | '#' | '9' | '*' => | |
2337 | if State /= Okay then | |
2338 | Pic.Floater := '!'; | |
2339 | Pic.Start_Float := Invalid_Position; | |
2340 | Pic.End_Float := Invalid_Position; | |
2341 | end if; | |
2342 | ||
2343 | Picture; | |
2344 | Set_State (Okay); | |
2345 | return; | |
2346 | ||
2347 | when 'Z' | 'z' => | |
2348 | if State = Okay then | |
2349 | Set_State (Reject); | |
2350 | end if; | |
2351 | ||
a2cb348e | 2352 | -- Can't have Z and a floating sign |
d23b8f57 RK |
2353 | |
2354 | Pic.Picture.Expanded (Index) := 'Z'; -- consistency | |
2355 | ||
2356 | -- '+Z' is acceptable | |
2357 | ||
2358 | Set_State (Okay); | |
2359 | ||
fbf5a39b AC |
2360 | -- Overwrite Floater and Start_Float |
2361 | ||
2362 | Pic.Floater := 'Z'; | |
2363 | Pic.Start_Float := Index; | |
2364 | ||
d23b8f57 RK |
2365 | Zero_Suppression; |
2366 | Trailing_Currency; | |
2367 | Optional_RHS_Sign; | |
2368 | return; | |
2369 | ||
2370 | when '.' | 'V' | 'v' => | |
2371 | if State /= Okay then | |
2372 | Pic.Floater := '!'; | |
2373 | Pic.Start_Float := Invalid_Position; | |
2374 | Pic.End_Float := Invalid_Position; | |
2375 | end if; | |
2376 | ||
a2cb348e | 2377 | -- Don't assume that state is okay, haven't seen a digit |
d23b8f57 RK |
2378 | |
2379 | Picture; | |
2380 | return; | |
2381 | ||
2382 | when others => | |
2383 | return; | |
2384 | ||
2385 | end case; | |
2386 | end loop; | |
2387 | end Picture_Plus; | |
2388 | ||
2389 | -------------------- | |
2390 | -- Picture_String -- | |
2391 | -------------------- | |
2392 | ||
2393 | procedure Picture_String is | |
2394 | begin | |
2395 | Debug_Start ("Picture_String"); | |
2396 | ||
2397 | while Is_Insert loop | |
2398 | Skip; | |
2399 | end loop; | |
2400 | ||
2401 | case Look is | |
2402 | ||
2403 | when '$' | '#' => | |
2404 | Picture; | |
2405 | Optional_RHS_Sign; | |
2406 | ||
2407 | when '+' => | |
2408 | Picture_Plus; | |
2409 | ||
2410 | when '-' => | |
2411 | Picture_Minus; | |
2412 | ||
2413 | when '<' => | |
2414 | Picture_Bracket; | |
2415 | ||
2416 | when 'Z' | 'z' => | |
2417 | Pic.Picture.Expanded (Index) := 'Z'; -- consistency | |
2418 | Zero_Suppression; | |
2419 | Trailing_Currency; | |
2420 | Optional_RHS_Sign; | |
2421 | ||
2422 | when '*' => | |
2423 | Star_Suppression; | |
2424 | Trailing_Currency; | |
2425 | Optional_RHS_Sign; | |
2426 | ||
2427 | when '9' | '.' | 'V' | 'v' => | |
2428 | Number; | |
2429 | Trailing_Currency; | |
2430 | Optional_RHS_Sign; | |
2431 | ||
2432 | when others => | |
2433 | raise Picture_Error; | |
2434 | ||
2435 | end case; | |
2436 | ||
2437 | -- Blank when zero either if the PIC does not contain a '9' or if | |
a2cb348e | 2438 | -- requested by the user and no '*'. |
d23b8f57 RK |
2439 | |
2440 | Pic.Blank_When_Zero := | |
2441 | (Computed_BWZ or Pic.Blank_When_Zero) and not Pic.Star_Fill; | |
2442 | ||
a2cb348e | 2443 | -- Star fill if '*' and no '9' |
d23b8f57 RK |
2444 | |
2445 | Pic.Star_Fill := Pic.Star_Fill and Computed_BWZ; | |
2446 | ||
2447 | if not At_End then | |
2448 | Set_State (Reject); | |
2449 | end if; | |
2450 | ||
2451 | end Picture_String; | |
2452 | ||
2453 | --------------- | |
2454 | -- Set_State -- | |
2455 | --------------- | |
2456 | ||
2457 | procedure Set_State (L : Legality) is | |
2458 | begin | |
835d23b2 RD |
2459 | if Debug then |
2460 | Ada.Text_IO.Put_Line | |
2461 | (" Set state from " & Legality'Image (State) | |
2462 | & " to " & Legality'Image (L)); | |
d23b8f57 RK |
2463 | end if; |
2464 | ||
2465 | State := L; | |
2466 | end Set_State; | |
2467 | ||
2468 | ---------- | |
2469 | -- Skip -- | |
2470 | ---------- | |
2471 | ||
2472 | procedure Skip is | |
2473 | begin | |
835d23b2 RD |
2474 | if Debug then |
2475 | Ada.Text_IO.Put_Line (" Skip " & Pic.Picture.Expanded (Index)); | |
d23b8f57 RK |
2476 | end if; |
2477 | ||
2478 | Index := Index + 1; | |
2479 | end Skip; | |
2480 | ||
2481 | ---------------------- | |
2482 | -- Star_Suppression -- | |
2483 | ---------------------- | |
2484 | ||
2485 | procedure Star_Suppression is | |
2486 | begin | |
2487 | Debug_Start ("Star_Suppression"); | |
fbf5a39b AC |
2488 | |
2489 | if Pic.Floater /= '!' and then Pic.Floater /= '*' then | |
2490 | ||
2491 | -- Two floats not allowed | |
2492 | ||
2493 | raise Picture_Error; | |
2494 | ||
2495 | else | |
2496 | Pic.Floater := '*'; | |
2497 | end if; | |
2498 | ||
d23b8f57 RK |
2499 | Pic.Start_Float := Index; |
2500 | Pic.End_Float := Index; | |
2501 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
2502 | Set_State (Okay); | |
2503 | ||
2504 | -- Even a single * is a valid picture | |
2505 | ||
2506 | Pic.Star_Fill := True; | |
2507 | Skip; -- Known * | |
2508 | ||
2509 | loop | |
2510 | if At_End then | |
2511 | return; | |
2512 | end if; | |
2513 | ||
2514 | case Look is | |
2515 | ||
2516 | when '_' | '0' | '/' => | |
2517 | Pic.End_Float := Index; | |
2518 | Skip; | |
2519 | ||
2520 | when 'B' | 'b' => | |
2521 | Pic.End_Float := Index; | |
2522 | Pic.Picture.Expanded (Index) := 'b'; | |
2523 | Skip; | |
2524 | ||
2525 | when '*' => | |
2526 | Pic.End_Float := Index; | |
2527 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
2528 | Set_State (Okay); Skip; | |
2529 | ||
2530 | when '9' => | |
2531 | Set_State (Okay); | |
2532 | Number_Completion; | |
2533 | return; | |
2534 | ||
2535 | when '.' | 'V' | 'v' => | |
2536 | Pic.Radix_Position := Index; | |
2537 | Skip; | |
2538 | Number_Fraction_Or_Star_Fill; | |
2539 | return; | |
2540 | ||
2541 | when '#' | '$' => | |
fbf5a39b AC |
2542 | if Pic.Max_Currency_Digits > 0 then |
2543 | raise Picture_Error; | |
2544 | end if; | |
2545 | ||
2546 | -- Cannot have leading and trailing currency | |
2547 | ||
d23b8f57 RK |
2548 | Trailing_Currency; |
2549 | Set_State (Okay); | |
2550 | return; | |
2551 | ||
2552 | when others => raise Picture_Error; | |
2553 | end case; | |
2554 | end loop; | |
2555 | end Star_Suppression; | |
2556 | ||
2557 | ---------------------- | |
2558 | -- Trailing_Bracket -- | |
2559 | ---------------------- | |
2560 | ||
2561 | procedure Trailing_Bracket is | |
2562 | begin | |
2563 | Debug_Start ("Trailing_Bracket"); | |
2564 | ||
2565 | if Look = '>' then | |
2566 | Pic.Second_Sign := Index; | |
2567 | Skip; | |
2568 | else | |
2569 | raise Picture_Error; | |
2570 | end if; | |
2571 | end Trailing_Bracket; | |
2572 | ||
2573 | ----------------------- | |
2574 | -- Trailing_Currency -- | |
2575 | ----------------------- | |
2576 | ||
2577 | procedure Trailing_Currency is | |
2578 | begin | |
2579 | Debug_Start ("Trailing_Currency"); | |
2580 | ||
2581 | if At_End then | |
2582 | return; | |
2583 | end if; | |
2584 | ||
2585 | if Look = '$' then | |
2586 | Pic.Start_Currency := Index; | |
2587 | Pic.End_Currency := Index; | |
2588 | Skip; | |
2589 | ||
2590 | else | |
2591 | while not At_End and then Look = '#' loop | |
2592 | if Pic.Start_Currency = Invalid_Position then | |
2593 | Pic.Start_Currency := Index; | |
2594 | end if; | |
2595 | ||
2596 | Pic.End_Currency := Index; | |
2597 | Skip; | |
2598 | end loop; | |
2599 | end if; | |
2600 | ||
2601 | loop | |
2602 | if At_End then | |
2603 | return; | |
2604 | end if; | |
2605 | ||
2606 | case Look is | |
2607 | when '_' | '0' | '/' => Skip; | |
2608 | ||
2609 | when 'B' | 'b' => | |
2610 | Pic.Picture.Expanded (Index) := 'b'; | |
2611 | Skip; | |
2612 | ||
2613 | when others => return; | |
2614 | end case; | |
2615 | end loop; | |
2616 | end Trailing_Currency; | |
2617 | ||
2618 | ---------------------- | |
2619 | -- Zero_Suppression -- | |
2620 | ---------------------- | |
2621 | ||
2622 | procedure Zero_Suppression is | |
2623 | begin | |
2624 | Debug_Start ("Zero_Suppression"); | |
2625 | ||
2626 | Pic.Floater := 'Z'; | |
2627 | Pic.Start_Float := Index; | |
2628 | Pic.End_Float := Index; | |
2629 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
2630 | Pic.Picture.Expanded (Index) := 'Z'; -- consistency | |
2631 | ||
2632 | Skip; -- Known Z | |
2633 | ||
2634 | loop | |
2635 | -- Even a single Z is a valid picture | |
2636 | ||
2637 | if At_End then | |
2638 | Set_State (Okay); | |
2639 | return; | |
2640 | end if; | |
2641 | ||
2642 | case Look is | |
2643 | when '_' | '0' | '/' => | |
2644 | Pic.End_Float := Index; | |
2645 | Skip; | |
2646 | ||
2647 | when 'B' | 'b' => | |
2648 | Pic.End_Float := Index; | |
2649 | Pic.Picture.Expanded (Index) := 'b'; | |
2650 | Skip; | |
2651 | ||
2652 | when 'Z' | 'z' => | |
2653 | Pic.Picture.Expanded (Index) := 'Z'; -- consistency | |
2654 | ||
2655 | Pic.Max_Leading_Digits := Pic.Max_Leading_Digits + 1; | |
2656 | Pic.End_Float := Index; | |
2657 | Set_State (Okay); | |
2658 | Skip; | |
2659 | ||
2660 | when '9' => | |
2661 | Set_State (Okay); | |
2662 | Number_Completion; | |
2663 | return; | |
2664 | ||
2665 | when '.' | 'V' | 'v' => | |
2666 | Pic.Radix_Position := Index; | |
2667 | Skip; | |
2668 | Number_Fraction_Or_Z_Fill; | |
2669 | return; | |
2670 | ||
2671 | when '#' | '$' => | |
2672 | Trailing_Currency; | |
2673 | Set_State (Okay); | |
2674 | return; | |
2675 | ||
2676 | when others => | |
2677 | return; | |
2678 | end case; | |
2679 | end loop; | |
2680 | end Zero_Suppression; | |
2681 | ||
2682 | -- Start of processing for Precalculate | |
2683 | ||
2684 | begin | |
fbf5a39b AC |
2685 | pragma Debug (Set_Debug); |
2686 | ||
d23b8f57 RK |
2687 | Picture_String; |
2688 | ||
2689 | if Debug then | |
2690 | Ada.Text_IO.New_Line; | |
2691 | Ada.Text_IO.Put (" Picture : """ & | |
2692 | Pic.Picture.Expanded (1 .. Pic.Picture.Length) & ""","); | |
2693 | Ada.Text_IO.Put (" Floater : '" & Pic.Floater & "',"); | |
2694 | end if; | |
2695 | ||
2696 | if State = Reject then | |
2697 | raise Picture_Error; | |
2698 | end if; | |
2699 | ||
2700 | Debug_Integer (Pic.Radix_Position, "Radix Positon : "); | |
2701 | Debug_Integer (Pic.Sign_Position, "Sign Positon : "); | |
2702 | Debug_Integer (Pic.Second_Sign, "Second Sign : "); | |
2703 | Debug_Integer (Pic.Start_Float, "Start Float : "); | |
2704 | Debug_Integer (Pic.End_Float, "End Float : "); | |
2705 | Debug_Integer (Pic.Start_Currency, "Start Currency : "); | |
2706 | Debug_Integer (Pic.End_Currency, "End Currency : "); | |
2707 | Debug_Integer (Pic.Max_Leading_Digits, "Max Leading Digits : "); | |
2708 | Debug_Integer (Pic.Max_Trailing_Digits, "Max Trailing Digits : "); | |
2709 | ||
2710 | if Debug then | |
2711 | Ada.Text_IO.New_Line; | |
2712 | end if; | |
2713 | ||
2714 | exception | |
2715 | ||
2716 | when Constraint_Error => | |
2717 | ||
a2cb348e | 2718 | -- To deal with special cases like null strings |
d23b8f57 RK |
2719 | |
2720 | raise Picture_Error; | |
d23b8f57 RK |
2721 | end Precalculate; |
2722 | ||
2723 | ---------------- | |
2724 | -- To_Picture -- | |
2725 | ---------------- | |
2726 | ||
2727 | function To_Picture | |
0ae9f22f RD |
2728 | (Pic_String : String; |
2729 | Blank_When_Zero : Boolean := False) return Picture | |
d23b8f57 RK |
2730 | is |
2731 | Result : Picture; | |
2732 | ||
2733 | begin | |
2734 | declare | |
2735 | Item : constant String := Expand (Pic_String); | |
2736 | ||
2737 | begin | |
2738 | Result.Contents.Picture := (Item'Length, Item); | |
2739 | Result.Contents.Original_BWZ := Blank_When_Zero; | |
2740 | Result.Contents.Blank_When_Zero := Blank_When_Zero; | |
2741 | Precalculate (Result.Contents); | |
2742 | return Result; | |
2743 | end; | |
2744 | ||
2745 | exception | |
2746 | when others => | |
2747 | raise Picture_Error; | |
d23b8f57 RK |
2748 | end To_Picture; |
2749 | ||
2750 | ----------- | |
2751 | -- Valid -- | |
2752 | ----------- | |
2753 | ||
2754 | function Valid | |
0ae9f22f RD |
2755 | (Pic_String : String; |
2756 | Blank_When_Zero : Boolean := False) return Boolean | |
d23b8f57 RK |
2757 | is |
2758 | begin | |
2759 | declare | |
2760 | Expanded_Pic : constant String := Expand (Pic_String); | |
2761 | -- Raises Picture_Error if Item not well-formed | |
2762 | ||
2763 | Format_Rec : Format_Record; | |
2764 | ||
2765 | begin | |
2766 | Format_Rec.Picture := (Expanded_Pic'Length, Expanded_Pic); | |
2767 | Format_Rec.Blank_When_Zero := Blank_When_Zero; | |
2768 | Format_Rec.Original_BWZ := Blank_When_Zero; | |
2769 | Precalculate (Format_Rec); | |
2770 | ||
fbf5a39b | 2771 | -- False only if Blank_When_Zero is True but the pic string has a '*' |
d23b8f57 | 2772 | |
0ae9f22f RD |
2773 | return not Blank_When_Zero |
2774 | or else Strings_Fixed.Index (Expanded_Pic, "*") = 0; | |
d23b8f57 RK |
2775 | end; |
2776 | ||
2777 | exception | |
2778 | when others => return False; | |
d23b8f57 RK |
2779 | end Valid; |
2780 | ||
2781 | -------------------- | |
2782 | -- Decimal_Output -- | |
2783 | -------------------- | |
2784 | ||
2785 | package body Decimal_Output is | |
2786 | ||
2787 | ----------- | |
2788 | -- Image -- | |
2789 | ----------- | |
2790 | ||
2791 | function Image | |
0ae9f22f RD |
2792 | (Item : Num; |
2793 | Pic : Picture; | |
2794 | Currency : String := Default_Currency; | |
2795 | Fill : Character := Default_Fill; | |
2796 | Separator : Character := Default_Separator; | |
2797 | Radix_Mark : Character := Default_Radix_Mark) return String | |
d23b8f57 RK |
2798 | is |
2799 | begin | |
2800 | return Format_Number | |
2801 | (Pic.Contents, Num'Image (Item), | |
2802 | Currency, Fill, Separator, Radix_Mark); | |
2803 | end Image; | |
2804 | ||
2805 | ------------ | |
2806 | -- Length -- | |
2807 | ------------ | |
2808 | ||
2809 | function Length | |
0ae9f22f RD |
2810 | (Pic : Picture; |
2811 | Currency : String := Default_Currency) return Natural | |
d23b8f57 RK |
2812 | is |
2813 | Picstr : constant String := Pic_String (Pic); | |
2814 | V_Adjust : Integer := 0; | |
2815 | Cur_Adjust : Integer := 0; | |
2816 | ||
2817 | begin | |
2818 | -- Check if Picstr has 'V' or '$' | |
2819 | ||
2820 | -- If 'V', then length is 1 less than otherwise | |
2821 | ||
2822 | -- If '$', then length is Currency'Length-1 more than otherwise | |
2823 | ||
2824 | -- This should use the string handling package ??? | |
2825 | ||
2826 | for J in Picstr'Range loop | |
2827 | if Picstr (J) = 'V' then | |
2828 | V_Adjust := -1; | |
2829 | ||
2830 | elsif Picstr (J) = '$' then | |
2831 | Cur_Adjust := Currency'Length - 1; | |
2832 | end if; | |
2833 | end loop; | |
2834 | ||
2835 | return Picstr'Length - V_Adjust + Cur_Adjust; | |
2836 | end Length; | |
2837 | ||
2838 | --------- | |
2839 | -- Put -- | |
2840 | --------- | |
2841 | ||
2842 | procedure Put | |
0ae9f22f RD |
2843 | (File : Text_IO.File_Type; |
2844 | Item : Num; | |
2845 | Pic : Picture; | |
2846 | Currency : String := Default_Currency; | |
2847 | Fill : Character := Default_Fill; | |
2848 | Separator : Character := Default_Separator; | |
2849 | Radix_Mark : Character := Default_Radix_Mark) | |
d23b8f57 RK |
2850 | is |
2851 | begin | |
2852 | Text_IO.Put (File, Image (Item, Pic, | |
2853 | Currency, Fill, Separator, Radix_Mark)); | |
2854 | end Put; | |
2855 | ||
2856 | procedure Put | |
0ae9f22f RD |
2857 | (Item : Num; |
2858 | Pic : Picture; | |
2859 | Currency : String := Default_Currency; | |
2860 | Fill : Character := Default_Fill; | |
2861 | Separator : Character := Default_Separator; | |
2862 | Radix_Mark : Character := Default_Radix_Mark) | |
d23b8f57 RK |
2863 | is |
2864 | begin | |
2865 | Text_IO.Put (Image (Item, Pic, | |
2866 | Currency, Fill, Separator, Radix_Mark)); | |
2867 | end Put; | |
2868 | ||
2869 | procedure Put | |
2870 | (To : out String; | |
0ae9f22f RD |
2871 | Item : Num; |
2872 | Pic : Picture; | |
2873 | Currency : String := Default_Currency; | |
2874 | Fill : Character := Default_Fill; | |
2875 | Separator : Character := Default_Separator; | |
2876 | Radix_Mark : Character := Default_Radix_Mark) | |
d23b8f57 RK |
2877 | is |
2878 | Result : constant String := | |
2879 | Image (Item, Pic, Currency, Fill, Separator, Radix_Mark); | |
2880 | ||
2881 | begin | |
2882 | if Result'Length > To'Length then | |
fbf5a39b | 2883 | raise Ada.Text_IO.Layout_Error; |
d23b8f57 RK |
2884 | else |
2885 | Strings_Fixed.Move (Source => Result, Target => To, | |
2886 | Justify => Strings.Right); | |
2887 | end if; | |
2888 | end Put; | |
2889 | ||
2890 | ----------- | |
2891 | -- Valid -- | |
2892 | ----------- | |
2893 | ||
2894 | function Valid | |
2895 | (Item : Num; | |
0ae9f22f RD |
2896 | Pic : Picture; |
2897 | Currency : String := Default_Currency) return Boolean | |
d23b8f57 RK |
2898 | is |
2899 | begin | |
2900 | declare | |
2901 | Temp : constant String := Image (Item, Pic, Currency); | |
2902 | pragma Warnings (Off, Temp); | |
2903 | begin | |
2904 | return True; | |
2905 | end; | |
2906 | ||
2907 | exception | |
fbf5a39b | 2908 | when Ada.Text_IO.Layout_Error => return False; |
d23b8f57 RK |
2909 | |
2910 | end Valid; | |
d23b8f57 RK |
2911 | end Decimal_Output; |
2912 | ||
2913 | end Ada.Text_IO.Editing; |