gcc/opt-gather.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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18
  19 # This Awk script takes a list of *.opt files and combines them into
  20 # a three-field sorted list suitable for input into opt[ch]-gen.awk.
  21 #
  22 # Usage: awk -f opt-gather.awk file1.opt [...] > outputfile
  23
  24 function sort(ARRAY, ELEMENTS)
  25 {
  26         for (i = 2; i <= ELEMENTS; ++i) {
  27                 for (j = i; ARRAY[j-1] > ARRAY[j]; --j) {
  28                         temp = ARRAY[j]
  29                         ARRAY[j] = ARRAY[j-1]
  30                         ARRAY[j-1] = temp
  31                 }
  32         }
  33         return
  34 }
  35
  36 BEGIN { numrec = 0 }
  37
  38 # Ignore comments and blank lines
  39 /^[ \t]*(;|$)/  { flag = 0; next }
  40 /^[^ \t]/       { if (flag == 0) {
  41                     record[++numrec] = $0
  42                     flag = 1 }
  43                   else {
  44                     record[numrec] = record[numrec] SUBSEP $0
  45                   }
  46 }
  47
  48 # Sort it and output it
  49 END {
  50         sort(record,numrec)
  51
  52         for (i = 1; i <= numrec; i++) {
  53                 print record[i] }
  54 }