File : agpl-strings-fields.adb
------------------------------------------------------------------------------
-- ADAGIO - ADALID - AENEA. --
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------------------------------------------------------------------------------
-- $Id: agpl-strings-fields.adb,v 1.1 2004/01/25 22:55:10 Jano Exp $
package body Agpl.Strings.Fields is
------------------------------------------------------------------------
-- Select_field --
------------------------------------------------------------------------
-- Returns the Nth field in a string, using the specified separator
function Select_field (
S : in String;
N : in Positive;
C : in Character := ' ') return String
is
Nth : Natural := 0;
Start : Natural := S'First;
begin
for I in S'range loop
if S (I) = C then
Nth := Nth + 1;
if Nth = N then
return S (Start .. I - 1);
else
Start := I + 1;
end if;
end if;
end loop;
return S (Start .. S'Last);
end Select_field;
end Agpl.Strings.Fields;