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104 | -- -*- coding: utf-8 -*-
--
-- ZanyBlue, an Ada library and framework for finite element analysis.
--
-- Copyright (c) 2012, 2016, Michael Rohan <mrohan@zanyblue.com>
-- All rights reserved.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions
-- are met:
--
-- * Redistributions of source code must retain the above copyright
-- notice, this list of conditions and the following disclaimer.
--
-- * Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in the
-- documentation and/or other materials provided with the distribution.
--
-- * Neither the name of ZanyBlue nor the names of its contributors may
-- be used to endorse or promote products derived from this software
-- without specific prior written permission.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-- HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
-- TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--
with Ada.Wide_Characters.Unicode;
package body ZBTest.Input_Parser is
use Ada.Wide_Characters.Unicode;
-----------------
-- Parse_Words --
-----------------
function Parse_Words
(Line : String)
return List_Type
is
type State_Type is (Space, Word, String, Comment);
Result : List_Type;
State : State_Type := Space;
End_Quote : Unicode_Character := '"';
First : Positive := Line'First;
begin
for I in Line'Range loop
case State is
when Space =>
if Line (I) = '"' or else Line (I) = ''' then
First := I + 1;
State := String;
End_Quote := Line (I);
elsif Line (I) = '#' then
State := Comment;
elsif not Is_Space (Line (I)) then
First := I;
State := Word;
end if;
when Word =>
if Line (I) = '"' or else Line (I) = ''' then
Append (Result, Line (First .. I - 1));
First := I + 1;
State := String;
End_Quote := Line (I);
elsif Is_Space (Line (I)) or else Line (I) = '#' then
Append (Result, Line (First .. I - 1));
if Line (I) = '#' then
State := Comment;
else
State := Space;
end if;
end if;
when String =>
if Line (I) = End_Quote then
Append (Result, Line (First .. I - 1));
First := I + 1;
State := Space;
end if;
when Comment =>
null;
end case;
end loop;
case State is
when Space | Comment =>
null;
when Word =>
Append (Result, Line (First .. Line'Last));
when String =>
raise Unterminated_String;
end case;
return Result;
end Parse_Words;
end ZBTest.Input_Parser;
|