File extension is in extensions list: Difference between revisions
File extension is in extensions list (view source)
Revision as of 19:22, 26 March 2022
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Line 176:
MyData_v1.0.tar.bz2 -> true
MyData_v1.0.bz2 -> false
</pre>
=={{header|Ada}}==
<lang Ada>with Ada.Text_IO; use Ada.Text_IO;
with Ada.Strings.Fixed.Equal_Case_Insensitive; use Ada.Strings.Fixed;
with Ada.Strings.Bounded;
procedure Main is
package B_String is new Ada.Strings.Bounded.Generic_Bounded_Length (30);
use B_String;
function is_equal (left, right : String) return Boolean renames
Ada.Strings.Fixed.Equal_Case_Insensitive;
type extension_list is array (Positive range <>) of Bounded_String;
Ext_List : extension_list :=
(To_Bounded_String ("zip"), To_Bounded_String ("rar"),
To_Bounded_String ("7z"), To_Bounded_String ("gz"),
To_Bounded_String ("archive"), To_Bounded_String ("A##"),
To_Bounded_String ("tar.bz2"));
type filename_list is array (Positive range <>) of Bounded_String;
fnames : filename_list :=
(To_Bounded_String ("MyData.a##"), To_Bounded_String ("MyData.tar.Gz"),
To_Bounded_String ("MyData.gzip"), To_Bounded_String ("MyData..."),
To_Bounded_String ("Mydata"), To_Bounded_String ("MyData_V1.0.tar.bz2"),
To_Bounded_String ("MyData_v1.0.bz2"));
Valid_Extension : Boolean;
begin
for name of fnames loop
Valid_Extension := False;
Put (To_String (name));
for ext of Ext_List loop
declare
S : String := "." & To_String (ext);
T : String := Tail (Source => To_String (name), Count => S'Length);
begin
if is_equal (S, T) then
Valid_Extension := True;
end if;
end;
end loop;
Set_Col (22);
Put_Line (": " & Valid_Extension'Image);
end loop;
end Main;</lang>
{{out}}
<pre>
MyData.a## : TRUE
MyData.tar.Gz : TRUE
MyData.gzip : FALSE
MyData... : FALSE
Mydata : FALSE
MyData_V1.0.tar.bz2 : TRUE
MyData_v1.0.bz2 : FALSE
</pre>
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