#!/usr/bin/awk -f
#
#  Copyright (C) 2000, 2001, 2006, 2017 Free Software Foundation, Inc.
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 3, or (at
# your option) any later version.
# 
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
# 
# You should have received a copy of the GNU Lesser General Public
# License along with this software; see the file COPYING.LESSER.  If
# not, write to the Free Software Foundation, Inc., 51 Franklin
# Street, Fifth Floor, Boston, MA 02110-1301 USA
#
# Written by Greg J. Badros, <gjb@cs.washington.edu>
# 11-Jan-2000

BEGIN {
  filename = ARGV[1];
  in_a_func = 0;
}

/^SCM_DEFINE / { 
  func_name = $0;
  sub(/^[^\(\n]*\([ \t]*/,"", func_name);
  sub(/[ \t]*,.*/,"", func_name);
#  print func_name;  # GJB:FIXME:: flag to do this to list primitives?
  in_a_func = 1;
}

/^\{/ && in_a_func {
  if (!match(last_line,/^#define[ \t]+FUNC_NAME[ \t]+/)) {
    printf filename ":" NR ":***" > "/dev/stderr";
    print "Missing or erroneous `#define FUNC_NAME s_" func_name "'" > "/dev/stderr";
  } else {
    sub(/^#define[ \t]+FUNC_NAME[ \t]+s_/, "", last_line);
    sub(/[ \t]*$/,"",last_line);
    if (last_line != func_name) {
      printf filename ":" NR ":***" > "/dev/stderr";
      print "Mismatching FUNC_NAME.  Should be: `#define FUNC_NAME s_" func_name "'" > "/dev/stderr";
    }
  }
}

1 == next_line_better_be_undef {
  if (!match($0,/^#undef FUNC_NAME[ \t]*$/)) {
    printf filename ":" NR ":***" > "/dev/stderr";
    print "Missing or erroneous #undef for " func_name ": "
          "Got `" $0 "' instead." > "/dev/stderr";
  }
  in_a_func = "";
  func_name = "";
  next_line_better_be_undef = 0;
}

/^\}/ && in_a_func {
  next_line_better_be_undef = 1;
}

{ last_line = $0; }
