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- /* str-casefold.c: make a string either all uppercase or all lowercase.
-
- Copyright (C) 1992 Free Software Foundation, Inc.
- This file was part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library 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 the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #include "config.h"
- #include <ctype.h>
-
- #include "str-lcase.h"
-
-
- /* Return a malloced copy of S with all its uppercase letters replaced
- with their lowercase counterparts. S must not be NULL. */
-
- string
- str_to_lower (string s)
- {
- unsigned c;
- string lc;
- unsigned length;
-
- assert (s != NULL);
-
- length = strlen (s);
- lc = xmalloc (length + 1);
-
- for (c = 0; c < length; c++)
- lc[c] = isupper (s[c]) ? tolower (s[c]) : s[c];
-
- lc[length] = 0;
-
- return lc;
-
- }
-