--- /dev/null
+c===========================================================================
+c
+c This file is part of TISEAN
+c
+c Copyright (c) 1998-2007 Rainer Hegger, Holger Kantz, Thomas Schreiber
+c
+c TISEAN is free software; you can redistribute it and/or modify
+c it under the terms of the GNU General Public License as published by
+c the Free Software Foundation; either version 2 of the License, or
+c (at your option) any later version.
+c
+c TISEAN is distributed in the hope that it will be useful,
+c but WITHOUT ANY WARRANTY; without even the implied warranty of
+c MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+c GNU General Public License for more details.
+c
+c You should have received a copy of the GNU General Public License
+c along with TISEAN; if not, write to the Free Software
+c Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+c
+c===========================================================================
+c any_s.f
+c extract numbers from strings
+c author T. Schreiber (1998)
+c===========================================================================
+
+ function i_s(s,ierr)
+ character*(*) s
+
+ ierr=0
+ read(s,'(i20)',err=777) i_s
+ if(s.ne.'-'.and.s.ne.'+') return ! reject a solitary - or +
+ 777 ierr=1
+ end
+
+ function f_s(s,ierr)
+ character*(*) s
+
+ ierr=0
+ read(s,'(f20.0)',err=777) f_s
+ if(s.ne.'-'.and.s.ne.'+') return ! reject a solitary - or +
+ 777 ierr=1
+ end