1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- A D A . T E X T _ I O . E D I T I N G --
9 -- Copyright (C) 1992-2007, Free Software Foundation, Inc. --
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- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
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 --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 with Ada
.Strings
.Fixed
;
35 package body Ada
.Text_IO
.Editing
is
37 package Strings
renames Ada
.Strings
;
38 package Strings_Fixed
renames Ada
.Strings
.Fixed
;
39 package Text_IO
renames Ada
.Text_IO
;
45 function Blank_When_Zero
(Pic
: Picture
) return Boolean is
47 return Pic
.Contents
.Original_BWZ
;
54 function Expand
(Picture
: String) return String is
55 Result
: String (1 .. MAX_PICSIZE
);
56 Picture_Index
: Integer := Picture
'First;
57 Result_Index
: Integer := Result
'First;
61 package Int_IO
is new Ada
.Text_IO
.Integer_IO
(Integer);
64 if Picture
'Length < 1 then
68 if Picture
(Picture
'First) = '(' then
73 case Picture
(Picture_Index
) is
76 Int_IO
.Get
(Picture
(Picture_Index
+ 1 .. Picture
'Last),
79 if Picture
(Last
+ 1) /= ')' then
83 -- In what follows note that one copy of the repeated
84 -- character has already been made, so a count of one is a
85 -- no-op, and a count of zero erases a character.
87 for J
in 2 .. Count
loop
88 Result
(Result_Index
+ J
- 2) := Picture
(Picture_Index
- 1);
91 Result_Index
:= Result_Index
+ Count
- 1;
93 -- Last + 1 was a ')' throw it away too
95 Picture_Index
:= Last
+ 2;
101 Result
(Result_Index
) := Picture
(Picture_Index
);
102 Picture_Index
:= Picture_Index
+ 1;
103 Result_Index
:= Result_Index
+ 1;
107 exit when Picture_Index
> Picture
'Last;
110 return Result
(1 .. Result_Index
- 1);
121 function Format_Number
122 (Pic
: Format_Record
;
124 Currency_Symbol
: String;
125 Fill_Character
: Character;
126 Separator_Character
: Character;
127 Radix_Point
: Character) return String
129 Attrs
: Number_Attributes
:= Parse_Number_String
(Number
);
131 Rounded
: String := Number
;
133 Sign_Position
: Integer := Pic
.Sign_Position
; -- may float.
135 Answer
: String (1 .. Pic
.Picture
.Length
) := Pic
.Picture
.Expanded
;
137 Currency_Pos
: Integer := Pic
.Start_Currency
;
138 In_Currency
: Boolean := False;
140 Dollar
: Boolean := False;
141 -- Overridden immediately if necessary
143 Zero
: Boolean := True;
144 -- Set to False when a non-zero digit is output
148 -- If the picture has fewer decimal places than the number, the image
149 -- must be rounded according to the usual rules.
151 if Attrs
.Has_Fraction
then
153 R
: constant Integer :=
154 (Attrs
.End_Of_Fraction
- Attrs
.Start_Of_Fraction
+ 1)
155 - Pic
.Max_Trailing_Digits
;
160 R_Pos
:= Attrs
.End_Of_Fraction
- R
;
162 if Rounded
(R_Pos
+ 1) > '4' then
164 if Rounded
(R_Pos
) = '.' then
168 if Rounded
(R_Pos
) /= '9' then
169 Rounded
(R_Pos
) := Character'Succ (Rounded
(R_Pos
));
171 Rounded
(R_Pos
) := '0';
175 if Rounded
(R_Pos
) = '.' then
179 if Rounded
(R_Pos
) /= '9' then
180 Rounded
(R_Pos
) := Character'Succ (Rounded
(R_Pos
));
183 Rounded
(R_Pos
) := '0';
188 -- The rounding may add a digit in front. Either the
189 -- leading blank or the sign (already captured) can
193 Rounded
(R_Pos
) := '1';
194 Attrs
.Start_Of_Int
:= Attrs
.Start_Of_Int
- 1;
202 if Pic
.Start_Currency
/= Invalid_Position
then
203 Dollar
:= Answer
(Pic
.Start_Currency
) = '$';
206 -- Fix up "direct inserts" outside the playing field. Set up as one
207 -- loop to do the beginning, one (reverse) loop to do the end.
211 exit when Last
= Pic
.Start_Float
;
212 exit when Last
= Pic
.Radix_Position
;
213 exit when Answer
(Last
) = '9';
215 case Answer
(Last
) is
218 Answer
(Last
) := Separator_Character
;
221 Answer
(Last
) := ' ';
228 exit when Last
= Answer
'Last;
233 -- Now for the end...
235 for J
in reverse Last
.. Answer
'Last loop
236 exit when J
= Pic
.Radix_Position
;
238 -- Do this test First, Separator_Character can equal Pic.Floater
240 if Answer
(J
) = Pic
.Floater
then
247 Answer
(J
) := Separator_Character
;
263 if Pic
.Start_Currency
/= -1
264 and then Answer
(Pic
.Start_Currency
) = '#'
265 and then Pic
.Floater
/= '#'
267 if Currency_Symbol
'Length >
268 Pic
.End_Currency
- Pic
.Start_Currency
+ 1
272 elsif Currency_Symbol
'Length =
273 Pic
.End_Currency
- Pic
.Start_Currency
+ 1
275 Answer
(Pic
.Start_Currency
.. Pic
.End_Currency
) :=
278 elsif Pic
.Radix_Position
= Invalid_Position
279 or else Pic
.Start_Currency
< Pic
.Radix_Position
281 Answer
(Pic
.Start_Currency
.. Pic
.End_Currency
) :=
283 Answer
(Pic
.End_Currency
- Currency_Symbol
'Length + 1 ..
284 Pic
.End_Currency
) := Currency_Symbol
;
287 Answer
(Pic
.Start_Currency
.. Pic
.End_Currency
) :=
289 Answer
(Pic
.Start_Currency
..
290 Pic
.Start_Currency
+ Currency_Symbol
'Length - 1) :=
295 -- Fill in leading digits
297 if Attrs
.End_Of_Int
- Attrs
.Start_Of_Int
+ 1 >
298 Pic
.Max_Leading_Digits
300 raise Ada
.Text_IO
.Layout_Error
;
303 if Pic
.Radix_Position
= Invalid_Position
then
304 Position
:= Answer
'Last;
306 Position
:= Pic
.Radix_Position
- 1;
309 for J
in reverse Attrs
.Start_Of_Int
.. Attrs
.End_Of_Int
loop
311 while Answer
(Position
) /= '9'
312 and Answer
(Position
) /= Pic
.Floater
314 if Answer
(Position
) = '_' then
315 Answer
(Position
) := Separator_Character
;
317 elsif Answer
(Position
) = 'b' then
318 Answer
(Position
) := ' ';
321 Position
:= Position
- 1;
324 Answer
(Position
) := Rounded
(J
);
326 if Rounded
(J
) /= '0' then
330 Position
:= Position
- 1;
335 if Pic
.Start_Float
= Invalid_Position
then
337 -- No leading floats, but need to change '9' to '0', '_' to
338 -- Separator_Character and 'b' to ' '.
340 for J
in Last
.. Position
loop
342 -- Last set when fixing the "uninteresting" leaders above.
343 -- Don't duplicate the work.
345 if Answer
(J
) = '9' then
348 elsif Answer
(J
) = '_' then
349 Answer
(J
) := Separator_Character
;
351 elsif Answer
(J
) = 'b' then
356 elsif Pic
.Floater
= '<'
362 for J
in Pic
.End_Float
.. Position
loop -- May be null range.
363 if Answer
(J
) = '9' then
366 elsif Answer
(J
) = '_' then
367 Answer
(J
) := Separator_Character
;
369 elsif Answer
(J
) = 'b' then
374 if Position
> Pic
.End_Float
then
375 Position
:= Pic
.End_Float
;
378 for J
in Pic
.Start_Float
.. Position
- 1 loop
382 Answer
(Position
) := Pic
.Floater
;
383 Sign_Position
:= Position
;
385 elsif Pic
.Floater
= '$' then
387 for J
in Pic
.End_Float
.. Position
loop -- May be null range.
388 if Answer
(J
) = '9' then
391 elsif Answer
(J
) = '_' then
392 Answer
(J
) := ' '; -- no separators before leftmost digit.
394 elsif Answer
(J
) = 'b' then
399 if Position
> Pic
.End_Float
then
400 Position
:= Pic
.End_Float
;
403 for J
in Pic
.Start_Float
.. Position
- 1 loop
407 Answer
(Position
) := Pic
.Floater
;
408 Currency_Pos
:= Position
;
410 elsif Pic
.Floater
= '*' then
412 for J
in Pic
.End_Float
.. Position
loop -- May be null range.
413 if Answer
(J
) = '9' then
416 elsif Answer
(J
) = '_' then
417 Answer
(J
) := Separator_Character
;
419 elsif Answer
(J
) = 'b' then
424 if Position
> Pic
.End_Float
then
425 Position
:= Pic
.End_Float
;
428 for J
in Pic
.Start_Float
.. Position
loop
433 if Pic
.Floater
= '#' then
434 Currency_Pos
:= Currency_Symbol
'Length;
438 for J
in reverse Pic
.Start_Float
.. Position
loop
442 Answer
(J
) := Fill_Character
;
445 if In_Currency
and then Currency_Pos
> 0 then
446 Answer
(J
) := Currency_Symbol
(Currency_Pos
);
447 Currency_Pos
:= Currency_Pos
- 1;
458 when '.' |
'V' |
'v' |
'<' |
'$' |
'+' |
'-' =>
462 if Currency_Pos
= 0 then
465 Answer
(J
) := Currency_Symbol
(Currency_Pos
);
466 Currency_Pos
:= Currency_Pos
- 1;
474 Answer
(J
) := Fill_Character
;
480 if Currency_Pos
= 0 then
484 Answer
(J
) := Currency_Symbol
(Currency_Pos
);
485 Currency_Pos
:= Currency_Pos
- 1;
499 if Pic
.Floater
= '#' and then Currency_Pos
/= 0 then
500 raise Ada
.Text_IO
.Layout_Error
;
506 if Sign_Position
= Invalid_Position
then
507 if Attrs
.Negative
then
508 raise Ada
.Text_IO
.Layout_Error
;
512 if Attrs
.Negative
then
513 case Answer
(Sign_Position
) is
514 when 'C' |
'D' |
'-' =>
518 Answer
(Sign_Position
) := '-';
521 Answer
(Sign_Position
) := '(';
522 Answer
(Pic
.Second_Sign
) := ')';
531 case Answer
(Sign_Position
) is
534 Answer
(Sign_Position
) := ' ';
536 when '<' |
'C' |
'D' =>
537 Answer
(Sign_Position
) := ' ';
538 Answer
(Pic
.Second_Sign
) := ' ';
550 -- Fill in trailing digits
552 if Pic
.Max_Trailing_Digits
> 0 then
554 if Attrs
.Has_Fraction
then
555 Position
:= Attrs
.Start_Of_Fraction
;
556 Last
:= Pic
.Radix_Position
+ 1;
558 for J
in Last
.. Answer
'Last loop
560 if Answer
(J
) = '9' or Answer
(J
) = Pic
.Floater
then
561 Answer
(J
) := Rounded
(Position
);
563 if Rounded
(Position
) /= '0' then
567 Position
:= Position
+ 1;
570 -- Used up fraction but remember place in Answer
572 exit when Position
> Attrs
.End_Of_Fraction
;
574 elsif Answer
(J
) = 'b' then
577 elsif Answer
(J
) = '_' then
578 Answer
(J
) := Separator_Character
;
588 Position
:= Pic
.Radix_Position
+ 1;
591 -- Now fill remaining 9's with zeros and _ with separators
595 for J
in Position
.. Last
loop
596 if Answer
(J
) = '9' then
599 elsif Answer
(J
) = Pic
.Floater
then
602 elsif Answer
(J
) = '_' then
603 Answer
(J
) := Separator_Character
;
605 elsif Answer
(J
) = 'b' then
611 Position
:= Last
+ 1;
614 if Pic
.Floater
= '#' and then Currency_Pos
/= 0 then
615 raise Ada
.Text_IO
.Layout_Error
;
618 -- No trailing digits, but now J may need to stick in a currency
621 if Pic
.Start_Currency
= Invalid_Position
then
622 Position
:= Answer
'Last + 1;
624 Position
:= Pic
.Start_Currency
;
628 for J
in Position
.. Answer
'Last loop
630 if Pic
.Start_Currency
/= Invalid_Position
and then
631 Answer
(Pic
.Start_Currency
) = '#' then
637 Answer
(J
) := Fill_Character
;
641 Answer
(J
) := Currency_Symbol
(Currency_Pos
);
642 Currency_Pos
:= Currency_Pos
+ 1;
644 if Currency_Pos
> Currency_Symbol
'Length then
645 In_Currency
:= False;
650 if Currency_Pos
> Currency_Symbol
'Length then
655 Answer
(J
) := Currency_Symbol
(Currency_Pos
);
656 Currency_Pos
:= Currency_Pos
+ 1;
658 if Currency_Pos
> Currency_Symbol
'Length then
659 In_Currency
:= False;
664 Answer
(J
) := Currency_Symbol
(Currency_Pos
);
665 Currency_Pos
:= Currency_Pos
+ 1;
670 Answer
(J
) := Fill_Character
;
676 if Currency_Pos
> Currency_Symbol
'Length then
679 Answer
(J
) := Currency_Symbol
(Currency_Pos
);
680 Currency_Pos
:= Currency_Pos
+ 1;
694 -- Now get rid of Blank_when_Zero and complete Star fill
696 if Zero
and Pic
.Blank_When_Zero
then
698 -- Value is zero, and blank it
703 Last
:= Last
- 1 + Currency_Symbol
'Length;
706 if Pic
.Radix_Position
/= Invalid_Position
and then
707 Answer
(Pic
.Radix_Position
) = 'V' then
711 return String'(1 .. Last => ' ');
713 elsif Zero and Pic.Star_Fill then
717 Last := Last - 1 + Currency_Symbol'Length;
720 if Pic.Radix_Position /= Invalid_Position then
722 if Answer (Pic.Radix_Position) = 'V
' then
726 if Pic.Radix_Position > Pic.Start_Currency then
727 return String'(1 .. Pic
.Radix_Position
- 1 => '*') &
729 String'(Pic.Radix_Position + 1 .. Last => '*');
735 Pic
.Radix_Position
+ Currency_Symbol
'Length - 2 =>
738 (Pic.Radix_Position + Currency_Symbol'Length .. Last
743 return String'(1 .. Pic
.Radix_Position
- 1 => '*') &
745 String'(Pic.Radix_Position + 1 .. Last => '*');
749 return String'(1 .. Last
=> '*');
752 -- This was once a simple return statement, now there are nine
753 -- different return cases. Not to mention the five above to deal
754 -- with zeros. Why not split things out?
756 -- Processing the radix and sign expansion separately
757 -- would require lots of copying--the string and some of its
758 -- indicies--without really simplifying the logic. The cases are:
760 -- 1) Expand $, replace '.' with Radix_Point
761 -- 2) No currency expansion, replace '.' with Radix_Point
762 -- 3) Expand $, radix blanked
763 -- 4) No currency expansion, radix blanked
765 -- 6) Expand $, Elide V
766 -- 7) Elide V, Expand $ (Two cases depending on order.)
767 -- 8) No radix, expand $
768 -- 9) No radix, no currency expansion
770 if Pic
.Radix_Position
/= Invalid_Position
then
772 if Answer
(Pic
.Radix_Position
) = '.' then
773 Answer
(Pic
.Radix_Position
) := Radix_Point
;
777 -- 1) Expand $, replace '.' with Radix_Point
779 return Answer
(1 .. Currency_Pos
- 1) & Currency_Symbol
&
780 Answer
(Currency_Pos
+ 1 .. Answer
'Last);
783 -- 2) No currency expansion, replace '.' with Radix_Point
788 elsif Answer
(Pic
.Radix_Position
) = ' ' then -- blanked radix.
791 -- 3) Expand $, radix blanked
793 return Answer
(1 .. Currency_Pos
- 1) & Currency_Symbol
&
794 Answer
(Currency_Pos
+ 1 .. Answer
'Last);
797 -- 4) No expansion, radix blanked
809 return Answer
(1 .. Pic
.Radix_Position
- 1) &
810 Answer
(Pic
.Radix_Position
+ 1 .. Answer
'Last);
812 elsif Currency_Pos
< Pic
.Radix_Position
then
814 -- 6) Expand $, Elide V
816 return Answer
(1 .. Currency_Pos
- 1) & Currency_Symbol
&
817 Answer
(Currency_Pos
+ 1 .. Pic
.Radix_Position
- 1) &
818 Answer
(Pic
.Radix_Position
+ 1 .. Answer
'Last);
821 -- 7) Elide V, Expand $
823 return Answer
(1 .. Pic
.Radix_Position
- 1) &
824 Answer
(Pic
.Radix_Position
+ 1 .. Currency_Pos
- 1) &
826 Answer
(Currency_Pos
+ 1 .. Answer
'Last);
832 -- 8) No radix, expand $
834 return Answer
(1 .. Currency_Pos
- 1) & Currency_Symbol
&
835 Answer
(Currency_Pos
+ 1 .. Answer
'Last);
838 -- 9) No radix, no currency expansion
844 -------------------------
845 -- Parse_Number_String --
846 -------------------------
848 function Parse_Number_String
(Str
: String) return Number_Attributes
is
849 Answer
: Number_Attributes
;
852 for J
in Str
'Range loop
860 -- Decide if this is the start of a number.
861 -- If so, figure out which one...
863 if Answer
.Has_Fraction
then
864 Answer
.End_Of_Fraction
:= J
;
866 if Answer
.Start_Of_Int
= Invalid_Position
then
868 Answer
.Start_Of_Int
:= J
;
870 Answer
.End_Of_Int
:= J
;
875 -- Only count a zero before the decimal point if it follows a
876 -- non-zero digit. After the decimal point, zeros will be
877 -- counted if followed by a non-zero digit.
879 if not Answer
.Has_Fraction
then
880 if Answer
.Start_Of_Int
/= Invalid_Position
then
881 Answer
.End_Of_Int
:= J
;
889 Answer
.Negative
:= True;
893 -- Close integer, start fraction
895 if Answer
.Has_Fraction
then
899 -- Two decimal points is a no-no
901 Answer
.Has_Fraction
:= True;
902 Answer
.End_Of_Fraction
:= J
;
904 -- Could leave this at Invalid_Position, but this seems the
905 -- right way to indicate a null range...
907 Answer
.Start_Of_Fraction
:= J
+ 1;
908 Answer
.End_Of_Int
:= J
- 1;
911 raise Picture_Error
; -- can this happen? probably not!
915 if Answer
.Start_Of_Int
= Invalid_Position
then
916 Answer
.Start_Of_Int
:= Answer
.End_Of_Int
+ 1;
919 -- No significant (integer) digits needs a null range
922 end Parse_Number_String
;
928 -- The following ensures that we return B and not b being careful not
929 -- to break things which expect lower case b for blank. See CXF3A02.
931 function Pic_String
(Pic
: Picture
) return String is
932 Temp
: String (1 .. Pic
.Contents
.Picture
.Length
) :=
933 Pic
.Contents
.Picture
.Expanded
;
935 for J
in Temp
'Range loop
936 if Temp
(J
) = 'b' then
948 procedure Precalculate
(Pic
: in out Format_Record
) is
949 Debug
: constant Boolean := False;
950 -- Set True to generate debug output
952 Computed_BWZ
: Boolean := True;
954 type Legality
is (Okay
, Reject
);
956 State
: Legality
:= Reject
;
957 -- Start in reject, which will reject null strings
959 Index
: Pic_Index
:= Pic
.Picture
.Expanded
'First;
961 function At_End
return Boolean;
962 pragma Inline
(At_End
);
964 procedure Set_State
(L
: Legality
);
965 pragma Inline
(Set_State
);
967 function Look
return Character;
968 pragma Inline
(Look
);
970 function Is_Insert
return Boolean;
971 pragma Inline
(Is_Insert
);
974 pragma Inline
(Skip
);
976 procedure Debug_Start
(Name
: String);
977 pragma Inline
(Debug_Start
);
979 procedure Debug_Integer
(Value
: Integer; S
: String);
980 pragma Inline
(Debug_Integer
);
982 procedure Trailing_Currency
;
983 procedure Trailing_Bracket
;
984 procedure Number_Fraction
;
985 procedure Number_Completion
;
986 procedure Number_Fraction_Or_Bracket
;
987 procedure Number_Fraction_Or_Z_Fill
;
988 procedure Zero_Suppression
;
989 procedure Floating_Bracket
;
990 procedure Number_Fraction_Or_Star_Fill
;
991 procedure Star_Suppression
;
992 procedure Number_Fraction_Or_Dollar
;
993 procedure Leading_Dollar
;
994 procedure Number_Fraction_Or_Pound
;
995 procedure Leading_Pound
;
997 procedure Floating_Plus
;
998 procedure Floating_Minus
;
999 procedure Picture_Plus
;
1000 procedure Picture_Minus
;
1001 procedure Picture_Bracket
;
1003 procedure Optional_RHS_Sign
;
1004 procedure Picture_String
;
1005 procedure Set_Debug
;
1011 function At_End
return Boolean is
1013 Debug_Start
("At_End");
1014 return Index
> Pic
.Picture
.Length
;
1021 -- Needed to have a procedure to pass to pragma Debug
1023 procedure Set_Debug
is
1025 -- Uncomment this line and make Debug a variable to enable debug
1036 procedure Debug_Integer
(Value
: Integer; S
: String) is
1037 use Ada
.Text_IO
; -- needed for >
1040 if Debug
and then Value
> 0 then
1041 if Ada
.Text_IO
.Col
> 70 - S
'Length then
1042 Ada
.Text_IO
.New_Line
;
1045 Ada
.Text_IO
.Put
(' ' & S
& Integer'Image (Value
) & ',');
1053 procedure Debug_Start
(Name
: String) is
1056 Ada
.Text_IO
.Put_Line
(" In " & Name
& '.');
1060 ----------------------
1061 -- Floating_Bracket --
1062 ----------------------
1064 -- Note that Floating_Bracket is only called with an acceptable
1065 -- prefix. But we don't set Okay, because we must end with a '>'.
1067 procedure Floating_Bracket
is
1069 Debug_Start
("Floating_Bracket");
1071 -- Two different floats not allowed
1073 if Pic
.Floater
/= '!' and then Pic
.Floater
/= '<' then
1074 raise Picture_Error
;
1080 Pic
.End_Float
:= Index
;
1081 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
1083 -- First bracket wasn't counted...
1094 when '_' |
'0' |
'/' =>
1095 Pic
.End_Float
:= Index
;
1099 Pic
.End_Float
:= Index
;
1100 Pic
.Picture
.Expanded
(Index
) := 'b';
1104 Pic
.End_Float
:= Index
;
1105 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
1117 when 'V' |
'v' |
'.' =>
1118 Pic
.Radix_Position
:= Index
;
1120 Number_Fraction_Or_Bracket
;
1127 end Floating_Bracket
;
1129 --------------------
1130 -- Floating_Minus --
1131 --------------------
1133 procedure Floating_Minus
is
1135 Debug_Start
("Floating_Minus");
1143 when '_' |
'0' |
'/' =>
1144 Pic
.End_Float
:= Index
;
1148 Pic
.End_Float
:= Index
;
1149 Pic
.Picture
.Expanded
(Index
) := 'b';
1153 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
1154 Pic
.End_Float
:= Index
;
1161 when '.' |
'V' |
'v' =>
1162 Pic
.Radix_Position
:= Index
;
1165 while Is_Insert
loop
1182 Pic
.Max_Trailing_Digits
:=
1183 Pic
.Max_Trailing_Digits
+ 1;
1184 Pic
.End_Float
:= Index
;
1187 when '_' |
'0' |
'/' =>
1191 Pic
.Picture
.Expanded
(Index
) := 'b';
1216 procedure Floating_Plus
is
1218 Debug_Start
("Floating_Plus");
1226 when '_' |
'0' |
'/' =>
1227 Pic
.End_Float
:= Index
;
1231 Pic
.End_Float
:= Index
;
1232 Pic
.Picture
.Expanded
(Index
) := 'b';
1236 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
1237 Pic
.End_Float
:= Index
;
1244 when '.' |
'V' |
'v' =>
1245 Pic
.Radix_Position
:= Index
;
1248 while Is_Insert
loop
1265 Pic
.Max_Trailing_Digits
:=
1266 Pic
.Max_Trailing_Digits
+ 1;
1267 Pic
.End_Float
:= Index
;
1270 when '_' |
'0' |
'/' =>
1274 Pic
.Picture
.Expanded
(Index
) := 'b';
1300 function Is_Insert
return Boolean is
1306 case Pic
.Picture
.Expanded
(Index
) is
1308 when '_' |
'0' |
'/' => return True;
1311 Pic
.Picture
.Expanded
(Index
) := 'b'; -- canonical
1314 when others => return False;
1318 --------------------
1319 -- Leading_Dollar --
1320 --------------------
1322 -- Note that Leading_Dollar can be called in either State.
1323 -- It will set state to Okay only if a 9 or (second) $
1326 -- Also notice the tricky bit with State and Zero_Suppression.
1327 -- Zero_Suppression is Picture_Error if a '$' or a '9' has been
1328 -- encountered, exactly the cases where State has been set.
1330 procedure Leading_Dollar
is
1332 Debug_Start
("Leading_Dollar");
1334 -- Treat as a floating dollar, and unwind otherwise
1336 if Pic
.Floater
/= '!' and then Pic
.Floater
/= '$' then
1338 -- Two floats not allowed
1340 raise Picture_Error
;
1346 Pic
.Start_Currency
:= Index
;
1347 Pic
.End_Currency
:= Index
;
1348 Pic
.Start_Float
:= Index
;
1349 Pic
.End_Float
:= Index
;
1351 -- Don't increment Pic.Max_Leading_Digits, we need one "real"
1363 when '_' |
'0' |
'/' =>
1364 Pic
.End_Float
:= Index
;
1367 -- A trailing insertion character is not part of the
1368 -- floating currency, so need to look ahead.
1371 Pic
.End_Float
:= Pic
.End_Float
- 1;
1375 Pic
.End_Float
:= Index
;
1376 Pic
.Picture
.Expanded
(Index
) := 'b';
1380 Pic
.Picture
.Expanded
(Index
) := 'Z'; -- consistency
1382 if State
= Okay
then
1383 raise Picture_Error
;
1385 -- Overwrite Floater and Start_Float
1388 Pic
.Start_Float
:= Index
;
1393 if State
= Okay
then
1394 raise Picture_Error
;
1396 -- Overwrite Floater and Start_Float
1399 Pic
.Start_Float
:= Index
;
1404 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
1405 Pic
.End_Float
:= Index
;
1406 Pic
.End_Currency
:= Index
;
1407 Set_State
(Okay
); Skip
;
1410 if State
/= Okay
then
1412 Pic
.Start_Float
:= Invalid_Position
;
1413 Pic
.End_Float
:= Invalid_Position
;
1416 -- A single dollar does not a floating make
1421 when 'V' |
'v' |
'.' =>
1422 if State
/= Okay
then
1424 Pic
.Start_Float
:= Invalid_Position
;
1425 Pic
.End_Float
:= Invalid_Position
;
1428 -- Only one dollar before the sign is okay, but doesn't
1431 Pic
.Radix_Position
:= Index
;
1433 Number_Fraction_Or_Dollar
;
1447 -- This one is complex! A Leading_Pound can be fixed or floating,
1448 -- but in some cases the decision has to be deferred until we leave
1449 -- this procedure. Also note that Leading_Pound can be called in
1452 -- It will set state to Okay only if a 9 or (second) # is
1455 -- One Last note: In ambiguous cases, the currency is treated as
1456 -- floating unless there is only one '#'.
1458 procedure Leading_Pound
is
1460 Inserts
: Boolean := False;
1461 -- Set to True if a '_', '0', '/', 'B', or 'b' is encountered
1463 Must_Float
: Boolean := False;
1464 -- Set to true if a '#' occurs after an insert
1467 Debug_Start
("Leading_Pound");
1469 -- Treat as a floating currency. If it isn't, this will be
1470 -- overwritten later.
1472 if Pic
.Floater
/= '!' and then Pic
.Floater
/= '#' then
1474 -- Two floats not allowed
1476 raise Picture_Error
;
1482 Pic
.Start_Currency
:= Index
;
1483 Pic
.End_Currency
:= Index
;
1484 Pic
.Start_Float
:= Index
;
1485 Pic
.End_Float
:= Index
;
1487 -- Don't increment Pic.Max_Leading_Digits, we need one "real"
1490 Pic
.Max_Currency_Digits
:= 1; -- we've seen one.
1501 when '_' |
'0' |
'/' =>
1502 Pic
.End_Float
:= Index
;
1507 Pic
.Picture
.Expanded
(Index
) := 'b';
1508 Pic
.End_Float
:= Index
;
1513 Pic
.Picture
.Expanded
(Index
) := 'Z'; -- consistency
1516 raise Picture_Error
;
1518 Pic
.Max_Leading_Digits
:= 0;
1520 -- Overwrite Floater and Start_Float
1523 Pic
.Start_Float
:= Index
;
1529 raise Picture_Error
;
1531 Pic
.Max_Leading_Digits
:= 0;
1533 -- Overwrite Floater and Start_Float
1535 Pic
.Start_Float
:= Index
;
1544 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
1545 Pic
.End_Float
:= Index
;
1546 Pic
.End_Currency
:= Index
;
1551 if State
/= Okay
then
1553 -- A single '#' doesn't float
1556 Pic
.Start_Float
:= Invalid_Position
;
1557 Pic
.End_Float
:= Invalid_Position
;
1563 when 'V' |
'v' |
'.' =>
1564 if State
/= Okay
then
1566 Pic
.Start_Float
:= Invalid_Position
;
1567 Pic
.End_Float
:= Invalid_Position
;
1570 -- Only one pound before the sign is okay, but doesn't
1573 Pic
.Radix_Position
:= Index
;
1575 Number_Fraction_Or_Pound
;
1588 function Look
return Character is
1591 raise Picture_Error
;
1594 return Pic
.Picture
.Expanded
(Index
);
1603 Debug_Start
("Number");
1608 when '_' |
'0' |
'/' =>
1612 Pic
.Picture
.Expanded
(Index
) := 'b';
1616 Computed_BWZ
:= False;
1617 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
1621 when '.' |
'V' |
'v' =>
1622 Pic
.Radix_Position
:= Index
;
1636 -- Will return in Okay state if a '9' was seen
1641 -----------------------
1642 -- Number_Completion --
1643 -----------------------
1645 procedure Number_Completion
is
1647 Debug_Start
("Number_Completion");
1649 while not At_End
loop
1652 when '_' |
'0' |
'/' =>
1656 Pic
.Picture
.Expanded
(Index
) := 'b';
1660 Computed_BWZ
:= False;
1661 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
1665 when 'V' |
'v' |
'.' =>
1666 Pic
.Radix_Position
:= Index
;
1675 end Number_Completion
;
1677 ---------------------
1678 -- Number_Fraction --
1679 ---------------------
1681 procedure Number_Fraction
is
1683 -- Note that number fraction can be called in either State.
1684 -- It will set state to Valid only if a 9 is encountered.
1686 Debug_Start
("Number_Fraction");
1694 when '_' |
'0' |
'/' =>
1698 Pic
.Picture
.Expanded
(Index
) := 'b';
1702 Computed_BWZ
:= False;
1703 Pic
.Max_Trailing_Digits
:= Pic
.Max_Trailing_Digits
+ 1;
1704 Set_State
(Okay
); Skip
;
1710 end Number_Fraction
;
1712 --------------------------------
1713 -- Number_Fraction_Or_Bracket --
1714 --------------------------------
1716 procedure Number_Fraction_Or_Bracket
is
1718 Debug_Start
("Number_Fraction_Or_Bracket");
1727 when '_' |
'0' |
'/' => Skip
;
1730 Pic
.Picture
.Expanded
(Index
) := 'b';
1734 Pic
.Max_Trailing_Digits
:= Pic
.Max_Trailing_Digits
+ 1;
1735 Pic
.End_Float
:= Index
;
1744 when '_' |
'0' |
'/' =>
1748 Pic
.Picture
.Expanded
(Index
) := 'b';
1752 Pic
.Max_Trailing_Digits
:=
1753 Pic
.Max_Trailing_Digits
+ 1;
1754 Pic
.End_Float
:= Index
;
1767 end Number_Fraction_Or_Bracket
;
1769 -------------------------------
1770 -- Number_Fraction_Or_Dollar --
1771 -------------------------------
1773 procedure Number_Fraction_Or_Dollar
is
1775 Debug_Start
("Number_Fraction_Or_Dollar");
1783 when '_' |
'0' |
'/' =>
1787 Pic
.Picture
.Expanded
(Index
) := 'b';
1791 Pic
.Max_Trailing_Digits
:= Pic
.Max_Trailing_Digits
+ 1;
1792 Pic
.End_Float
:= Index
;
1801 when '_' |
'0' |
'/' =>
1805 Pic
.Picture
.Expanded
(Index
) := 'b';
1809 Pic
.Max_Trailing_Digits
:=
1810 Pic
.Max_Trailing_Digits
+ 1;
1811 Pic
.End_Float
:= Index
;
1824 end Number_Fraction_Or_Dollar
;
1826 ------------------------------
1827 -- Number_Fraction_Or_Pound --
1828 ------------------------------
1830 procedure Number_Fraction_Or_Pound
is
1839 when '_' |
'0' |
'/' =>
1843 Pic
.Picture
.Expanded
(Index
) := 'b';
1847 Pic
.Max_Trailing_Digits
:= Pic
.Max_Trailing_Digits
+ 1;
1848 Pic
.End_Float
:= Index
;
1858 when '_' |
'0' |
'/' =>
1862 Pic
.Picture
.Expanded
(Index
) := 'b';
1866 Pic
.Max_Trailing_Digits
:=
1867 Pic
.Max_Trailing_Digits
+ 1;
1868 Pic
.End_Float
:= Index
;
1883 end Number_Fraction_Or_Pound
;
1885 ----------------------------------
1886 -- Number_Fraction_Or_Star_Fill --
1887 ----------------------------------
1889 procedure Number_Fraction_Or_Star_Fill
is
1891 Debug_Start
("Number_Fraction_Or_Star_Fill");
1900 when '_' |
'0' |
'/' =>
1904 Pic
.Picture
.Expanded
(Index
) := 'b';
1908 Pic
.Star_Fill
:= True;
1909 Pic
.Max_Trailing_Digits
:= Pic
.Max_Trailing_Digits
+ 1;
1910 Pic
.End_Float
:= Index
;
1920 when '_' |
'0' |
'/' =>
1924 Pic
.Picture
.Expanded
(Index
) := 'b';
1928 Pic
.Star_Fill
:= True;
1929 Pic
.Max_Trailing_Digits
:=
1930 Pic
.Max_Trailing_Digits
+ 1;
1931 Pic
.End_Float
:= Index
;
1945 end Number_Fraction_Or_Star_Fill
;
1947 -------------------------------
1948 -- Number_Fraction_Or_Z_Fill --
1949 -------------------------------
1951 procedure Number_Fraction_Or_Z_Fill
is
1953 Debug_Start
("Number_Fraction_Or_Z_Fill");
1962 when '_' |
'0' |
'/' =>
1966 Pic
.Picture
.Expanded
(Index
) := 'b';
1970 Pic
.Max_Trailing_Digits
:= Pic
.Max_Trailing_Digits
+ 1;
1971 Pic
.End_Float
:= Index
;
1972 Pic
.Picture
.Expanded
(Index
) := 'Z'; -- consistency
1983 when '_' |
'0' |
'/' =>
1987 Pic
.Picture
.Expanded
(Index
) := 'b';
1991 Pic
.Picture
.Expanded
(Index
) := 'Z'; -- consistency
1993 Pic
.Max_Trailing_Digits
:=
1994 Pic
.Max_Trailing_Digits
+ 1;
1995 Pic
.End_Float
:= Index
;
2008 end Number_Fraction_Or_Z_Fill
;
2010 -----------------------
2011 -- Optional_RHS_Sign --
2012 -----------------------
2014 procedure Optional_RHS_Sign
is
2016 Debug_Start
("Optional_RHS_Sign");
2025 Pic
.Sign_Position
:= Index
;
2030 Pic
.Sign_Position
:= Index
;
2031 Pic
.Picture
.Expanded
(Index
) := 'C';
2034 if Look
= 'R' or Look
= 'r' then
2035 Pic
.Second_Sign
:= Index
;
2036 Pic
.Picture
.Expanded
(Index
) := 'R';
2040 raise Picture_Error
;
2046 Pic
.Sign_Position
:= Index
;
2047 Pic
.Picture
.Expanded
(Index
) := 'D';
2050 if Look
= 'B' or Look
= 'b' then
2051 Pic
.Second_Sign
:= Index
;
2052 Pic
.Picture
.Expanded
(Index
) := 'B';
2056 raise Picture_Error
;
2062 if Pic
.Picture
.Expanded
(Pic
.Sign_Position
) = '<' then
2063 Pic
.Second_Sign
:= Index
;
2067 raise Picture_Error
;
2074 end Optional_RHS_Sign
;
2080 -- Note that Picture can be called in either State
2082 -- It will set state to Valid only if a 9 is encountered or floating
2083 -- currency is called.
2085 procedure Picture
is
2087 Debug_Start
("Picture");
2096 when '_' |
'0' |
'/' =>
2100 Pic
.Picture
.Expanded
(Index
) := 'b';
2112 Computed_BWZ
:= False;
2114 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
2117 when 'V' |
'v' |
'.' =>
2118 Pic
.Radix_Position
:= Index
;
2131 ---------------------
2132 -- Picture_Bracket --
2133 ---------------------
2135 procedure Picture_Bracket
is
2137 Pic
.Sign_Position
:= Index
;
2138 Debug_Start
("Picture_Bracket");
2139 Pic
.Sign_Position
:= Index
;
2141 -- Treat as a floating sign, and unwind otherwise
2144 Pic
.Start_Float
:= Index
;
2145 Pic
.End_Float
:= Index
;
2147 -- Don't increment Pic.Max_Leading_Digits, we need one "real"
2150 Skip
; -- Known Bracket
2155 when '_' |
'0' |
'/' =>
2156 Pic
.End_Float
:= Index
;
2160 Pic
.End_Float
:= Index
;
2161 Pic
.Picture
.Expanded
(Index
) := 'b';
2165 Set_State
(Okay
); -- "<<>" is enough.
2171 when '$' |
'#' |
'9' |
'*' =>
2172 if State
/= Okay
then
2174 Pic
.Start_Float
:= Invalid_Position
;
2175 Pic
.End_Float
:= Invalid_Position
;
2183 when '.' |
'V' |
'v' =>
2184 if State
/= Okay
then
2186 Pic
.Start_Float
:= Invalid_Position
;
2187 Pic
.End_Float
:= Invalid_Position
;
2190 -- Don't assume that state is okay, haven't seen a digit
2197 raise Picture_Error
;
2201 end Picture_Bracket
;
2207 procedure Picture_Minus
is
2209 Debug_Start
("Picture_Minus");
2211 Pic
.Sign_Position
:= Index
;
2213 -- Treat as a floating sign, and unwind otherwise
2216 Pic
.Start_Float
:= Index
;
2217 Pic
.End_Float
:= Index
;
2219 -- Don't increment Pic.Max_Leading_Digits, we need one "real"
2222 Skip
; -- Known Minus
2227 when '_' |
'0' |
'/' =>
2228 Pic
.End_Float
:= Index
;
2232 Pic
.End_Float
:= Index
;
2233 Pic
.Picture
.Expanded
(Index
) := 'b';
2237 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
2238 Pic
.End_Float
:= Index
;
2240 Set_State
(Okay
); -- "-- " is enough.
2245 when '$' |
'#' |
'9' |
'*' =>
2246 if State
/= Okay
then
2248 Pic
.Start_Float
:= Invalid_Position
;
2249 Pic
.End_Float
:= Invalid_Position
;
2258 -- Can't have Z and a floating sign
2260 if State
= Okay
then
2264 Pic
.Picture
.Expanded
(Index
) := 'Z'; -- consistency
2270 when '.' |
'V' |
'v' =>
2271 if State
/= Okay
then
2273 Pic
.Start_Float
:= Invalid_Position
;
2274 Pic
.End_Float
:= Invalid_Position
;
2277 -- Don't assume that state is okay, haven't seen a digit
2293 procedure Picture_Plus
is
2295 Debug_Start
("Picture_Plus");
2296 Pic
.Sign_Position
:= Index
;
2298 -- Treat as a floating sign, and unwind otherwise
2301 Pic
.Start_Float
:= Index
;
2302 Pic
.End_Float
:= Index
;
2304 -- Don't increment Pic.Max_Leading_Digits, we need one "real"
2312 when '_' |
'0' |
'/' =>
2313 Pic
.End_Float
:= Index
;
2317 Pic
.End_Float
:= Index
;
2318 Pic
.Picture
.Expanded
(Index
) := 'b';
2322 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
2323 Pic
.End_Float
:= Index
;
2325 Set_State
(Okay
); -- "++" is enough
2330 when '$' |
'#' |
'9' |
'*' =>
2331 if State
/= Okay
then
2333 Pic
.Start_Float
:= Invalid_Position
;
2334 Pic
.End_Float
:= Invalid_Position
;
2342 if State
= Okay
then
2346 -- Can't have Z and a floating sign
2348 Pic
.Picture
.Expanded
(Index
) := 'Z'; -- consistency
2350 -- '+Z' is acceptable
2354 -- Overwrite Floater and Start_Float
2357 Pic
.Start_Float
:= Index
;
2364 when '.' |
'V' |
'v' =>
2365 if State
/= Okay
then
2367 Pic
.Start_Float
:= Invalid_Position
;
2368 Pic
.End_Float
:= Invalid_Position
;
2371 -- Don't assume that state is okay, haven't seen a digit
2383 --------------------
2384 -- Picture_String --
2385 --------------------
2387 procedure Picture_String
is
2389 Debug_Start
("Picture_String");
2391 while Is_Insert
loop
2411 Pic
.Picture
.Expanded
(Index
) := 'Z'; -- consistency
2421 when '9' |
'.' |
'V' |
'v' =>
2427 raise Picture_Error
;
2431 -- Blank when zero either if the PIC does not contain a '9' or if
2432 -- requested by the user and no '*'.
2434 Pic
.Blank_When_Zero
:=
2435 (Computed_BWZ
or Pic
.Blank_When_Zero
) and not Pic
.Star_Fill
;
2437 -- Star fill if '*' and no '9'
2439 Pic
.Star_Fill
:= Pic
.Star_Fill
and Computed_BWZ
;
2451 procedure Set_State
(L
: Legality
) is
2454 Ada
.Text_IO
.Put_Line
2455 (" Set state from " & Legality
'Image (State
)
2456 & " to " & Legality
'Image (L
));
2469 Ada
.Text_IO
.Put_Line
(" Skip " & Pic
.Picture
.Expanded
(Index
));
2475 ----------------------
2476 -- Star_Suppression --
2477 ----------------------
2479 procedure Star_Suppression
is
2481 Debug_Start
("Star_Suppression");
2483 if Pic
.Floater
/= '!' and then Pic
.Floater
/= '*' then
2485 -- Two floats not allowed
2487 raise Picture_Error
;
2493 Pic
.Start_Float
:= Index
;
2494 Pic
.End_Float
:= Index
;
2495 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
2498 -- Even a single * is a valid picture
2500 Pic
.Star_Fill
:= True;
2510 when '_' |
'0' |
'/' =>
2511 Pic
.End_Float
:= Index
;
2515 Pic
.End_Float
:= Index
;
2516 Pic
.Picture
.Expanded
(Index
) := 'b';
2520 Pic
.End_Float
:= Index
;
2521 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
2522 Set_State
(Okay
); Skip
;
2529 when '.' |
'V' |
'v' =>
2530 Pic
.Radix_Position
:= Index
;
2532 Number_Fraction_Or_Star_Fill
;
2536 if Pic
.Max_Currency_Digits
> 0 then
2537 raise Picture_Error
;
2540 -- Cannot have leading and trailing currency
2546 when others => raise Picture_Error
;
2549 end Star_Suppression
;
2551 ----------------------
2552 -- Trailing_Bracket --
2553 ----------------------
2555 procedure Trailing_Bracket
is
2557 Debug_Start
("Trailing_Bracket");
2560 Pic
.Second_Sign
:= Index
;
2563 raise Picture_Error
;
2565 end Trailing_Bracket
;
2567 -----------------------
2568 -- Trailing_Currency --
2569 -----------------------
2571 procedure Trailing_Currency
is
2573 Debug_Start
("Trailing_Currency");
2580 Pic
.Start_Currency
:= Index
;
2581 Pic
.End_Currency
:= Index
;
2585 while not At_End
and then Look
= '#' loop
2586 if Pic
.Start_Currency
= Invalid_Position
then
2587 Pic
.Start_Currency
:= Index
;
2590 Pic
.End_Currency
:= Index
;
2601 when '_' |
'0' |
'/' => Skip
;
2604 Pic
.Picture
.Expanded
(Index
) := 'b';
2607 when others => return;
2610 end Trailing_Currency
;
2612 ----------------------
2613 -- Zero_Suppression --
2614 ----------------------
2616 procedure Zero_Suppression
is
2618 Debug_Start
("Zero_Suppression");
2621 Pic
.Start_Float
:= Index
;
2622 Pic
.End_Float
:= Index
;
2623 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
2624 Pic
.Picture
.Expanded
(Index
) := 'Z'; -- consistency
2629 -- Even a single Z is a valid picture
2637 when '_' |
'0' |
'/' =>
2638 Pic
.End_Float
:= Index
;
2642 Pic
.End_Float
:= Index
;
2643 Pic
.Picture
.Expanded
(Index
) := 'b';
2647 Pic
.Picture
.Expanded
(Index
) := 'Z'; -- consistency
2649 Pic
.Max_Leading_Digits
:= Pic
.Max_Leading_Digits
+ 1;
2650 Pic
.End_Float
:= Index
;
2659 when '.' |
'V' |
'v' =>
2660 Pic
.Radix_Position
:= Index
;
2662 Number_Fraction_Or_Z_Fill
;
2674 end Zero_Suppression
;
2676 -- Start of processing for Precalculate
2679 pragma Debug
(Set_Debug
);
2684 Ada
.Text_IO
.New_Line
;
2685 Ada
.Text_IO
.Put
(" Picture : """ &
2686 Pic
.Picture
.Expanded
(1 .. Pic
.Picture
.Length
) & """,");
2687 Ada
.Text_IO
.Put
(" Floater : '" & Pic
.Floater
& "',");
2690 if State
= Reject
then
2691 raise Picture_Error
;
2694 Debug_Integer
(Pic
.Radix_Position
, "Radix Positon : ");
2695 Debug_Integer
(Pic
.Sign_Position
, "Sign Positon : ");
2696 Debug_Integer
(Pic
.Second_Sign
, "Second Sign : ");
2697 Debug_Integer
(Pic
.Start_Float
, "Start Float : ");
2698 Debug_Integer
(Pic
.End_Float
, "End Float : ");
2699 Debug_Integer
(Pic
.Start_Currency
, "Start Currency : ");
2700 Debug_Integer
(Pic
.End_Currency
, "End Currency : ");
2701 Debug_Integer
(Pic
.Max_Leading_Digits
, "Max Leading Digits : ");
2702 Debug_Integer
(Pic
.Max_Trailing_Digits
, "Max Trailing Digits : ");
2705 Ada
.Text_IO
.New_Line
;
2710 when Constraint_Error
=>
2712 -- To deal with special cases like null strings
2714 raise Picture_Error
;
2722 (Pic_String
: String;
2723 Blank_When_Zero
: Boolean := False) return Picture
2729 Item
: constant String := Expand
(Pic_String
);
2732 Result
.Contents
.Picture
:= (Item
'Length, Item
);
2733 Result
.Contents
.Original_BWZ
:= Blank_When_Zero
;
2734 Result
.Contents
.Blank_When_Zero
:= Blank_When_Zero
;
2735 Precalculate
(Result
.Contents
);
2741 raise Picture_Error
;
2749 (Pic_String
: String;
2750 Blank_When_Zero
: Boolean := False) return Boolean
2754 Expanded_Pic
: constant String := Expand
(Pic_String
);
2755 -- Raises Picture_Error if Item not well-formed
2757 Format_Rec
: Format_Record
;
2760 Format_Rec
.Picture
:= (Expanded_Pic
'Length, Expanded_Pic
);
2761 Format_Rec
.Blank_When_Zero
:= Blank_When_Zero
;
2762 Format_Rec
.Original_BWZ
:= Blank_When_Zero
;
2763 Precalculate
(Format_Rec
);
2765 -- False only if Blank_When_Zero is True but the pic string has a '*'
2767 return not Blank_When_Zero
2768 or else Strings_Fixed
.Index
(Expanded_Pic
, "*") = 0;
2772 when others => return False;
2775 --------------------
2776 -- Decimal_Output --
2777 --------------------
2779 package body Decimal_Output
is
2788 Currency
: String := Default_Currency
;
2789 Fill
: Character := Default_Fill
;
2790 Separator
: Character := Default_Separator
;
2791 Radix_Mark
: Character := Default_Radix_Mark
) return String
2794 return Format_Number
2795 (Pic
.Contents
, Num
'Image (Item
),
2796 Currency
, Fill
, Separator
, Radix_Mark
);
2805 Currency
: String := Default_Currency
) return Natural
2807 Picstr
: constant String := Pic_String
(Pic
);
2808 V_Adjust
: Integer := 0;
2809 Cur_Adjust
: Integer := 0;
2812 -- Check if Picstr has 'V' or '$'
2814 -- If 'V', then length is 1 less than otherwise
2816 -- If '$', then length is Currency'Length-1 more than otherwise
2818 -- This should use the string handling package ???
2820 for J
in Picstr
'Range loop
2821 if Picstr
(J
) = 'V' then
2824 elsif Picstr
(J
) = '$' then
2825 Cur_Adjust
:= Currency
'Length - 1;
2829 return Picstr
'Length - V_Adjust
+ Cur_Adjust
;
2837 (File
: Text_IO
.File_Type
;
2840 Currency
: String := Default_Currency
;
2841 Fill
: Character := Default_Fill
;
2842 Separator
: Character := Default_Separator
;
2843 Radix_Mark
: Character := Default_Radix_Mark
)
2846 Text_IO
.Put
(File
, Image
(Item
, Pic
,
2847 Currency
, Fill
, Separator
, Radix_Mark
));
2853 Currency
: String := Default_Currency
;
2854 Fill
: Character := Default_Fill
;
2855 Separator
: Character := Default_Separator
;
2856 Radix_Mark
: Character := Default_Radix_Mark
)
2859 Text_IO
.Put
(Image
(Item
, Pic
,
2860 Currency
, Fill
, Separator
, Radix_Mark
));
2867 Currency
: String := Default_Currency
;
2868 Fill
: Character := Default_Fill
;
2869 Separator
: Character := Default_Separator
;
2870 Radix_Mark
: Character := Default_Radix_Mark
)
2872 Result
: constant String :=
2873 Image
(Item
, Pic
, Currency
, Fill
, Separator
, Radix_Mark
);
2876 if Result
'Length > To
'Length then
2877 raise Ada
.Text_IO
.Layout_Error
;
2879 Strings_Fixed
.Move
(Source
=> Result
, Target
=> To
,
2880 Justify
=> Strings
.Right
);
2891 Currency
: String := Default_Currency
) return Boolean
2895 Temp
: constant String := Image
(Item
, Pic
, Currency
);
2896 pragma Warnings
(Off
, Temp
);
2902 when Ada
.Text_IO
.Layout_Error
=> return False;
2907 end Ada
.Text_IO
.Editing
;