gcc/opt-functions.awk

   1 #  Copyright (C) 2003,2004 Free Software Foundation, Inc.
   2 #  Contributed by Kelley Cook, June 2004.
   3 #  Original code from Neil Booth, May 2003.
   4 #
   5 # This program is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License as published by the
   7 # Free Software Foundation; either version 2, or (at your option) any
   8 # later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software
  17 # Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19 # Some common subroutines for use by opt[ch]-gen.awk.
  20
  21 function switch_flags (flags)
  22 {
  23         flags = " " flags " "
  24         result = "0"
  25         for (j = 0; j < n_langs; j++) {
  26                 regex = " " langs[j] " "
  27                 gsub ( "\\+", "\\+", regex )
  28                 if (flags ~ regex)
  29                         result = result " | " macros[j]
  30         }
  31         if (flags ~ " Common ") result = result " | CL_COMMON"
  32         if (flags ~ " Joined ") result = result " | CL_JOINED"
  33         if (flags ~ " JoinedOrMissing ") \
  34             result = result " | CL_JOINED | CL_MISSING_OK"
  35         if (flags ~ " Separate ") result = result " | CL_SEPARATE"
  36         if (flags ~ " RejectNegative ") result = result " | CL_REJECT_NEGATIVE"
  37         if (flags ~ " UInteger ") result = result " | CL_UINTEGER"
  38         if (flags ~ " Undocumented ") result = result " | CL_UNDOCUMENTED"
  39         if (flags ~ " Report ") result = result " | CL_REPORT"
  40         sub( "^0 \\| ", "", result )
  41         return result
  42 }
  43
  44 function var_args(flags)
  45 {
  46         if (flags !~ "Var\\(")
  47             return ""
  48         sub(".*Var\\(", "", flags)
  49         sub("\\).*", "", flags)
  50
  51         return flags
  52 }
  53 function var_name(flags)
  54 {
  55         s = var_args(flags)
  56         if (s == "")
  57                 return "";
  58         sub( ",.*", "", s)
  59         return s
  60 }
  61 function var_set(flags)
  62 {
  63         s = var_args(flags)
  64         if (s !~ ",")
  65                 return "0, 0"
  66         sub( "[^,]*,", "", s)
  67         return "1, " s
  68 }
  69 function var_ref(flags)
  70 {
  71         name = var_name(flags)
  72         if (name == "")
  73                 return "0"
  74         else
  75                 return "&" name
  76 }