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diff --git a/gcc/ada/g-utf_32.ads b/gcc/ada/g-utf_32.ads new file mode 100644 index 00000000000..1da9cf68fb8 --- /dev/null +++ b/gcc/ada/g-utf_32.ads @@ -0,0 +1,124 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUNTIME COMPONENTS -- +-- -- +-- G N A T . U T F _ 3 2 -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2005 Free Software Foundation, Inc. -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 2, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT 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 distributed with GNAT; see file COPYING. If not, write -- +-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- +-- MA 02111-1307, USA. -- +-- -- +-- 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. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This package is an internal package that provides basic character +-- classification capabilities needed by the compiler for handling full +-- 32-bit wide wide characters. We avoid the use of the actual type +-- Wide_Wide_Character, since we want to use these routines in the compiler +-- itself, and we want to be able to compile the compiler with old versions +-- of GNAT that did not implement Wide_Wide_Character. + +-- This package is not available directly for use in application programs, +-- but it serves as the basis for GNAT.Wide_Case_Utilities and +-- GNAT.Wide_Wide_Case_Utilities, which can be used directly. + +package GNAT.UTF_32 is + + type UTF_32 is mod 2 ** 32; + -- The actual allowed range is 16#00_0000# .. 16#01_FFFF# + + function Is_UTF_32_Letter (U : UTF_32) return Boolean; + pragma Inline (Is_UTF_32_Letter); + -- Returns true iff U is a letter that can be used to start an identifier. + -- This means that it is in one of the following categories: + -- Letter, Uppercase (Lu) + -- Letter, Lowercase (Ll) + -- Letter, Titlecase (Lt) + -- Letter, Modifier (Lm) + -- Letter, Other (Lo) + -- Number, Letter (Nl) + + function Is_UTF_32_Digit (U : UTF_32) return Boolean; + pragma Inline (Is_UTF_32_Digit); + -- Returns true iff U is a digit that can be used to extend an identifer, + -- which means it is in one of the following categories: + -- Number, Decimal_Digit (Nd) + + function Is_UTF_32_Line_Terminator (U : UTF_32) return Boolean; + pragma Inline (Is_UTF_32_Line_Terminator); + -- Returns true iff U is an allowed line terminator for source programs, + -- which means it is in one of the following categories: + -- Separator, Line (Zl) + -- Separator, Paragraph (Zp) + -- or that it is a conventional line terminator (CR, LF, VT, FF) + + function Is_UTF_32_Mark (U : UTF_32) return Boolean; + pragma Inline (Is_UTF_32_Mark); + -- Returns true iff U is a mark character which can be used to extend + -- an identifier. This means it is in one of the following categories: + -- Mark, Non-Spacing (Mn) + -- Mark, Spacing Combining (Mc) + + function Is_UTF_32_Other (U : UTF_32) return Boolean; + pragma Inline (Is_UTF_32_Other); + -- Returns true iff U is an other format character, which means that it + -- can be used to extend an identifier, but is ignored for the purposes of + -- matching of identiers. This means that it is in one of the following + -- categories: + -- Other, Format (Cf) + + function Is_UTF_32_Punctuation (U : UTF_32) return Boolean; + pragma Inline (Is_UTF_32_Punctuation); + -- Returns true iff U is a punctuation character that can be used to + -- separate pices of an identifier. This means that it is in one of the + -- following categories: + -- Punctuation, Connector (Pc) + + function Is_UTF_32_Space (U : UTF_32) return Boolean; + pragma Inline (Is_UTF_32_Space); + -- Returns true iff U is considered a space to be ignored, which means + -- that it is in one of the following categories: + -- Separator, Space (Zs) + + function Is_UTF_32_Non_Graphic (U : UTF_32) return Boolean; + pragma Inline (Is_UTF_32_Non_Graphic); + -- Returns true iff U is considered to be a non-graphic character, + -- which means that it is in one of the following categories: + -- Other, Control (Cc) + -- Other, Private Use (Co) + -- Other, Surrogate (Cs) + -- Other, Format (Cf) + -- Separator, Line (Zl) + -- Separator, Paragraph (Zp) + -- + -- Note that the Ada category format effector is subsumed by the above + -- list of Unicode categories. + + function UTF_32_To_Upper_Case (U : UTF_32) return UTF_32; + pragma Inline (UTF_32_To_Upper_Case); + -- If U represents a lower case letter, returns the corresponding upper + -- case letter, otherwise U is returned unchanged. The folding is locale + -- independent as defined by documents referenced in the note in section + -- 1 of ISO/IEC 10646:2003 + +end GNAT.UTF_32; |