text
stringlengths 0
234
|
|---|
S_Idx := 0;
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SName := (others => ' ');
|
for J in 1 .. Last loop
|
exit when Add_Tilde and then S_Idx >= 6;
|
exit when not Add_Tilde and then S_Idx = 8;
|
if Name.Name (J) in 'a' .. 'z' then
|
S_Idx := S_Idx + 1;
|
SName (S_Idx) := To_Upper (Name.Name (J));
|
elsif Is_Legal_Character (Name.Name (J)) then
|
S_Idx := S_Idx + 1;
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SName (S_Idx) := Name.Name (J);
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elsif Name.Name (J) = '.'
|
or else Name.Name (J) = ' '
|
then
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-- dots that are not used as extension delimiters are invalid
|
-- in FAT short names and ignored in long names to short names
|
-- translation
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Add_Tilde := True;
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else
|
-- Any other character is translated as '_'
|
Add_Tilde := True;
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S_Idx := S_Idx + 1;
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SName (S_Idx) := '_';
|
end if;
|
end loop;
|
if Add_Tilde then
|
if S_Idx >= 6 then
|
SName (7 .. 8) := "~1";
|
else
|
SName (S_Idx + 1 .. S_Idx + 2) := "~1";
|
end if;
|
end if;
|
end To_Short_Name;
|
---------------
|
-- Inc_SName --
|
---------------
|
procedure Inc_SName (SName : in out String)
|
is
|
Idx : Natural := 0;
|
Num : Natural := 0;
|
begin
|
for J in reverse SName'Range loop
|
if Idx = 0 then
|
if SName (J) = ' ' then
|
null;
|
elsif SName (J) in '0' .. '9' then
|
Idx := J;
|
else
|
SName (SName'Last - 1 .. SName'Last) := "~1";
|
return;
|
end if;
|
elsif SName (J) in '0' .. '9' then
|
Idx := J;
|
elsif SName (J) = '~' then
|
Num := Value (SName (Idx .. SName'Last)) + 1;
|
-- make Idx point to '~'
|
Idx := J;
|
declare
|
N_Suffix : String := Natural'Image (Num);
|
begin
|
N_Suffix (N_Suffix'First) := '~';
|
if Idx + N_Suffix'Length - 1 > SName'Last then
|
SName (SName'Last - N_Suffix'Length + 1 .. SName'Last) :=
|
N_Suffix;
|
else
|
SName (Idx .. Idx + N_Suffix'Length - 1) := N_Suffix;
|
end if;
|
return;
|
Function Definition: function To_Disk_Parameter is new Ada.Unchecked_Conversion
|
Function Body: (Disk_Parameter_Block, FAT_Disk_Parameter);
|
subtype FSInfo_Block is Block (0 .. 11);
|
function To_FSInfo is new Ada.Unchecked_Conversion
|
(FSInfo_Block, FAT_FS_Info);
|
begin
|
FS.Window_Block := 16#FFFF_FFFF#;
|
Status := FS.Ensure_Block (0);
|
if Status /= OK then
|
return;
|
end if;
|
if FS.Window (510 .. 511) /= (16#55#, 16#AA#) then
|
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