4dfba737a4
2018-01-11 Arnaud Charlet <charlet@adacore.com> gcc/ada/ Bump copyright notices to 2018. From-SVN: r256519
99 lines
4.7 KiB
Ada
99 lines
4.7 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- C A S I N G --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 1992-2018, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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with Namet; use Namet;
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with Types; use Types;
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package Casing is
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-- This package contains data and subprograms to support the feature that
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-- recognizes the letter case styles used in the source program being
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-- compiled, and uses this information for error message formatting, and
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-- for recognizing reserved words that are misused as identifiers.
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-------------------------------
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-- Case Control Declarations --
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-------------------------------
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-- Declaration of type for describing casing convention
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type Casing_Type is (
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All_Upper_Case,
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-- All letters are upper case
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All_Lower_Case,
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-- All letters are lower case
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Mixed_Case,
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-- The initial letter, and any letters after underlines are upper case.
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-- All other letters are lower case
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Unknown
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-- Used if an identifier does not distinguish between the above cases,
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-- (e.g. X, Y_3, M4, A_B, or if it is inconsistent ABC_def).
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);
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subtype Known_Casing is Casing_Type range All_Upper_Case .. Mixed_Case;
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-- Exclude Unknown casing
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------------------------------
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-- Case Control Subprograms --
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------------------------------
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procedure Set_Casing
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(Buf : in out Bounded_String;
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C : Casing_Type;
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D : Casing_Type := Mixed_Case);
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-- Takes the name stored in Buf and modifies it to be consistent with the
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-- casing given by C, or if C = Unknown, then with the casing given by
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-- D. The name is basically treated as an identifier, except that special
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-- separator characters other than underline are permitted and treated like
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-- underlines (this handles cases like minus and period in unit names,
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-- apostrophes in error messages, angle brackets in names like <any_type>,
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-- etc).
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procedure Set_Casing (C : Casing_Type; D : Casing_Type := Mixed_Case);
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-- Uses Buf => Global_Name_Buffer
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procedure Set_All_Upper_Case;
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pragma Inline (Set_All_Upper_Case);
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-- This procedure is called with an identifier name stored in Name_Buffer.
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-- On return, the identifier is converted to all upper case. The call is
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-- equivalent to Set_Casing (All_Upper_Case).
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function Determine_Casing (Ident : Text_Buffer) return Casing_Type;
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-- Determines the casing of the identifier/keyword string Ident. A special
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-- test is made for SPARK_Mode which is considered to be mixed case, since
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-- this gives a better general behavior.
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end Casing;
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