+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- S C N --
--- --
--- S p e c --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- Copyright (C) 1992-2000 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. --
--- --
--- GNAT was originally developed by the GNAT team at New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
--- This package contains the lexical analyzer routines. This is used both
--- for scanning Ada source files and also for scanning Ada project files.
-
-with Casing; use Casing;
-with Types; use Types;
-
-package Scn is
-
- procedure Initialize_Scanner
- (Unit : Unit_Number_Type;
- Index : Source_File_Index);
- -- Initialize lexical scanner for scanning a new file. The caller has
- -- completed the construction of the Units.Table entry for the specified
- -- Unit and Index references the corresponding source file. A special
- -- case is when Unit = No_Unit_Number, and Index corresponds to the
- -- source index for reading the configuration pragma file.
-
- procedure Scan;
- -- Scan scans out the next token, and advances the scan state accordingly
- -- (see package Scan_State for details). If the scan encounters an illegal
- -- token, then an error message is issued pointing to the bad character,
- -- and Scan returns a reasonable substitute token of some kind.
-
- function Scan_First_Char return Source_Ptr;
- -- This routine returns the position in Source of the first non-blank
- -- character on the current line, used for certain error recovery actions.
-
- procedure Scan_Reserved_Identifier (Force_Msg : Boolean);
- -- This procedure is called to convert the current token, which the caller
- -- has checked is for a reserved word, to an equivalent identifier. This is
- -- of course only used in error situations where the parser can detect that
- -- a reserved word is being used as an identifier. An appropriate error
- -- message, pointing to the token, is also issued if either this is the
- -- first occurrence of misuse of this identifier, or if Force_Msg is True.
-
- function Determine_Token_Casing return Casing_Type;
- pragma Inline (Determine_Token_Casing);
- -- Determines the casing style of the current token, which is
- -- either a keyword or an identifier. See also package Casing.
-
-end Scn;
projects / msp430-gcc.git / blobdiff