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-- GHDL Run Time (GRT) - Misc subprograms for characters and strings
-- Copyright (C) 2016 Tristan Gingold
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <gnu.org/licenses>.
--
-- As a special exception, if other files instantiate generics from this
-- unit, or you link this unit with other files to produce an executable,
-- this unit does not by itself cause the resulting executable to be
-- covered by the GNU General Public License. This exception does not
-- however invalidate any other reasons why the executable file might be
-- covered by the GNU Public License.
package Grt.Strings is
pragma Pure;
NBSP : constant Character := Character'Val (160);
-- Return True IFF C is a whitespace character as defined by LRM93 13.1
-- Note: this is different from the definition in LRM93 14.3 (for files,
-- which includes HT).
function Is_Whitespace (C : in Character) return Boolean;
-- The following functions return -1 in case there is no match in string ---
-- Return the index of the first non whitespace character in string
function First_Non_Whitespace_Pos (Str : String) return Integer;
-- Return the index of the last non whitespace character in string
function Last_Non_Whitespace_Pos (Str : String) return Integer;
-- Return the index of the new line character (ASCII.LF) in string
function New_Line_Pos (Line : String) return Integer;
-- Return the index of the first character that matches Char in string
function Find (Str : String; Char : Character) return Integer;
function Find (Str : String; Char : Character; Start : Positive)
return Integer;
----------------------------------------------------------------------------
-- Convert C/S to lowercase.
function To_Lower (C : Character) return Character;
-- Str/Char : image of a natural number/digit
function Value (Str : String) return Integer;
function Value (Char : Character) return Integer;
end Grt.Strings;
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