blob: 39c49bcc2c893f105a5b8112236053a2aa07227b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
# str-casefold.c: make a string either all uppercase or all lowercase.
#
# Copyright (C) 1992, 2011 Free Software Foundation, Inc.
#
# This program 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 3 of the License, or
# (at your option) any later version.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#
#include "config.h"
#include "c-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;
}
|
