diff options
Diffstat (limited to 'gcc/ada/switch.ads')
| -rw-r--r-- | gcc/ada/switch.ads | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/gcc/ada/switch.ads b/gcc/ada/switch.ads new file mode 100644 index 00000000000..7153cdaa765 --- /dev/null +++ b/gcc/ada/switch.ads @@ -0,0 +1,69 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- S W I T C H -- +-- -- +-- S p e c -- +-- -- +-- $Revision: 1.17 $ -- +-- -- +-- 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; |