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Diffstat (limited to 'lib/unistring/unistr/u8-check.c')
-rw-r--r--lib/unistring/unistr/u8-check.c87
1 files changed, 0 insertions, 87 deletions
diff --git a/lib/unistring/unistr/u8-check.c b/lib/unistring/unistr/u8-check.c
deleted file mode 100644
index c62fa7d81e..0000000000
--- a/lib/unistring/unistr/u8-check.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/* Check UTF-8 string.
- Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
- Written by Bruno Haible <bruno@clisp.org>, 2002.
-
- This program is free software: you can redistribute it and/or modify it
- under the terms of either:
-
- * the GNU Lesser General Public License as published
- by the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- or
-
- * the GNU General Public License as published by the Free
- Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- or both in parallel, as here.
-
- 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
-
-#include <config.h>
-
-/* Specification. */
-#include "unistr.h"
-
-const uint8_t *
-u8_check (const uint8_t *s, size_t n)
-{
- const uint8_t *s_end = s + n;
-
- while (s < s_end)
- {
- /* Keep in sync with unistr.h and u8-mbtouc-aux.c. */
- uint8_t c = *s;
-
- if (c < 0x80)
- {
- s++;
- continue;
- }
- if (c >= 0xc2)
- {
- if (c < 0xe0)
- {
- if (s + 2 <= s_end
- && (s[1] ^ 0x80) < 0x40)
- {
- s += 2;
- continue;
- }
- }
- else if (c < 0xf0)
- {
- if (s + 3 <= s_end
- && (s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40
- && (c >= 0xe1 || s[1] >= 0xa0)
- && (c != 0xed || s[1] < 0xa0))
- {
- s += 3;
- continue;
- }
- }
- else if (c < 0xf8)
- {
- if (s + 4 <= s_end
- && (s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40
- && (s[3] ^ 0x80) < 0x40
- && (c >= 0xf1 || s[1] >= 0x90)
- && (c < 0xf4 || (c == 0xf4 && s[1] < 0x90)))
- {
- s += 4;
- continue;
- }
- }
- }
- /* invalid or incomplete multibyte character */
- return s;
- }
- return NULL;
-}