Subversion Repositories scarts

/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.

   Contributed by Paul Brook

This file is part of the GNU Fortran 95 runtime library (libgfortran).

Libgfortran is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

In addition to the permissions in the GNU General Public License, the

Free Software Foundation gives you unlimited permission to link the

compiled version of this file into combinations with other programs,

and to distribute those combinations without any restriction coming

from the use of this file.  (The General Public License restrictions

do apply in other respects; for example, they cover modification of

the file, and distribution when not linked into a combine

executable.)

Libgfortran 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 General Public License for more details.

You should have received a copy of the GNU General Public License

along with libgfortran; see the file COPYING.  If not, write to

the Free Software Foundation, 51 Franklin Street, Fifth Floor,

Boston, MA 02110-1301, USA.  */

#include "config.h"

#include <string.h>

#include "libgfortran.h"

#include "../io/io.h"

/* Compare a C-style string with a fortran style string in a case-insensitive

   manner.  Used for decoding string options to various statements.  Returns

   zero if not equal, nonzero if equal.  */

static int

compare0 (const char *s1, int s1_len, const char *s2)

{

  int len;

  /* Strip trailing blanks from the Fortran string.  */

  len = fstrlen (s1, s1_len);

  return strncasecmp (s1, s2, len) == 0;

}

/* Given a fortran string, return its length exclusive of the trailing

   spaces.  */

int

fstrlen (const char *string, int len)

{

  for (len--; len >= 0; len--)

    if (string[len] != ' ')

      break;

  return len + 1;

}

void

fstrcpy (char *dest, int destlen, const char *src, int srclen)

{

  if (srclen >= destlen)

    {

      /* This will truncate if too long.  */

      memcpy (dest, src, destlen);

    }

  else

    {

      memcpy (dest, src, srclen);

      /* Pad with spaces.  */

      memset (&dest[srclen], ' ', destlen - srclen);

    }

}

void

cf_strcpy (char *dest, int dest_len, const char *src)

{

  int src_len;

  src_len = strlen (src);

  if (src_len >= dest_len)

    {

      /* This will truncate if too long.  */

      memcpy (dest, src, dest_len);

    }

  else

    {

      memcpy (dest, src, src_len);

      /* Pad with spaces.  */

      memset (&dest[src_len], ' ', dest_len - src_len);

    }

}

/* Given a fortran string and an array of st_option structures, search through

   the array to find a match.  If the option is not found, we generate an error

   if no default is provided.  */

int

find_option (st_parameter_common *cmp, const char *s1, int s1_len,

             const st_option * opts, const char *error_message)

{

  for (; opts->name; opts++)

    if (compare0 (s1, s1_len, opts->name))

      return opts->value;

  generate_error (cmp, ERROR_BAD_OPTION, error_message);

  return -1;

}