------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S W I T C H -- -- -- -- S p e c -- -- -- -- $Revision: 1.1.1.1 $ -- -- -- -- Copyright (C) 1992-2001 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. -- -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- -- -- ------------------------------------------------------------------------------ -- This package scans switches. Note that the body of Usage must be -- coordinated with the switches that are recognized by this package. -- The Usage package also acts as the official documentation for the -- switches that are recognized. In addition, package Debug documents -- the otherwise undocumented debug switches that are also recognized. package Switch is -- Note: The default switch character is indicated by Switch_Character, -- but regardless of what it is, a hyphen is always allowed as an -- (alternative) switch character. -- Note: In GNAT, the case of switches is not significant if -- Switches_Case_Sensitive is False. If this is the case, switch -- characters, or letters appearing in the parameter to a switch, may be -- either upper case or lower case. ----------------- -- Subprograms -- ----------------- function Is_Switch (Switch_Chars : String) return Boolean; -- Returns True iff Switch_Chars is at least two characters long, -- and the first character indicates it is a switch. function Is_Front_End_Switch (Switch_Chars : String) return Boolean; -- Returns True iff Switch_Chars represents a front-end switch, -- ie. it starts with -I or -gnat. procedure Scan_Front_End_Switches (Switch_Chars : String); procedure Scan_Binder_Switches (Switch_Chars : String); procedure Scan_Make_Switches (Switch_Chars : String); -- Procedures to scan out switches stored in the given string. The first -- character is known to be a valid switch character, and there are no -- blanks or other switch terminator characters in the string, so the -- entire string should consist of valid switch characters, except that -- an optional terminating NUL character is allowed. A bad switch causes -- a fatal error exit and control does not return. The call also sets -- Usage_Requested to True if a ? switch is encountered. end Switch;