130bcb37be
2005-04-09 Thomas Koenig <Thomas.Koenig@online.de>
PR libfortran/20163
* runtime/string.c (compare0): Use fstrlen() to
strip trailing blanks from option string.
From-SVN: r97923
119 lines
3.1 KiB
C
119 lines
3.1 KiB
C
/* Copyright (C) 2002-2003 Free Software Foundation, Inc.
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Contributed by Paul Brook
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This file is part of the GNU Fortran 95 runtime library (libgfortran).
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Libgfortran is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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In addition to the permissions in the GNU General Public License, the
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Free Software Foundation gives you unlimited permission to link the
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compiled version of this file into combinations with other programs,
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and to distribute those combinations without any restriction coming
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from the use of this file. (The General Public License restrictions
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do apply in other respects; for example, they cover modification of
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the file, and distribution when not linked into a combine
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executable.)
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Libgfortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with libgfortran; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "config.h"
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#include <string.h>
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#include "libgfortran.h"
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/* Compare a C-style string with a fortran style string in a case-insensitive
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manner. Used for decoding string options to various statements. Returns
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zero if not equal, nonzero if equal. */
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static int
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compare0 (const char *s1, int s1_len, const char *s2)
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{
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int i;
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int len;
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/* Strip trailing blanks from the Fortran string. */
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len = fstrlen(s1, s1_len);
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return strncasecmp(s1,s2,len) == 0;
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}
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/* Given a fortran string, return its length exclusive of the trailing
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spaces. */
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int
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fstrlen (const char *string, int len)
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{
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for (len--; len >= 0; len--)
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if (string[len] != ' ')
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break;
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return len + 1;
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}
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void
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fstrcpy (char *dest, int destlen, const char *src, int srclen)
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{
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if (srclen >= destlen)
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{
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/* This will truncate if too long. */
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memcpy (dest, src, destlen);
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}
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else
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{
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memcpy (dest, src, srclen);
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/* Pad with spaces. */
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memset (&dest[srclen], ' ', destlen - srclen);
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}
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}
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void
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cf_strcpy (char *dest, int dest_len, const char *src)
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{
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int src_len;
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src_len = strlen (src);
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if (src_len >= dest_len)
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{
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/* This will truncate if too long. */
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memcpy (dest, src, dest_len);
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}
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else
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{
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memcpy (dest, src, src_len);
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/* Pad with spaces. */
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memset (&dest[src_len], ' ', dest_len - src_len);
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}
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}
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/* Given a fortran string and an array of st_option structures, search through
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the array to find a match. If the option is not found, we generate an error
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if no default is provided. */
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int
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find_option (const char *s1, int s1_len, st_option * opts,
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const char *error_message)
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{
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for (; opts->name; opts++)
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if (compare0 (s1, s1_len, opts->name))
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return opts->value;
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generate_error (ERROR_BAD_OPTION, error_message);
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return -1;
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}
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