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# $Id#
#
# Copyright (C) 2004 Alan W. Irwin
#
# This file is part of PLplot.
#
# PLplot is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Library Public License as published
# by the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# PLplot 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 Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public License
# along with PLplot; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# This sed command script converts a fortran file from double to single
# precision. A number of simplifying assumptions are made.
# * The file is all in lower case
# * No implicit statements other than implicit none
# * No "double precision" statements
# * (This is the biggy) all floating-point numbers in standard form consisting
# of one or more digits, a decimal point, zero or more digits, "d", optional
# sign, 1 or more digits.
# N.B. the example *.fm4 files in this directory have been carefully
# maintained to satisfy these conditions, and if this maintainence fails,
# the single-precision (and possibly the double-precision form as well) will
# no longer work.
# Convert real*8
s/real\*8/real*4/
# Convert dble
s/dble/real/g
# Convert numbers in above standard form.
s/\([0-9]\+\.[0-9]*\)d\([+-][0-9]\+\)/\1e\2/g
s/\([0-9]\+\.[0-9]*\)d\([0-9]\+\)/\1e\2/g
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