diff options
| author | George Hazan <george.hazan@gmail.com> | 2012-07-26 14:56:53 +0000 |
|---|---|---|
| committer | George Hazan <george.hazan@gmail.com> | 2012-07-26 14:56:53 +0000 |
| commit | d5d6965af7e69367babf40b7fb1d7fca8617cabe (patch) | |
| tree | 614f57382fcf26c3895d4166f67657c3b0e23e3e /plugins/DbChecker/src/utf.cpp | |
| parent | 78eb36ffcbd1b71eee1b912a927522fd3f19b347 (diff) | |
dbtool is divided into two parts: DbChecker & appendix for db3x_mmap plugin
git-svn-id: http://svn.miranda-ng.org/main/trunk@1195 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/DbChecker/src/utf.cpp')
| -rw-r--r-- | plugins/DbChecker/src/utf.cpp | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/plugins/DbChecker/src/utf.cpp b/plugins/DbChecker/src/utf.cpp new file mode 100644 index 0000000000..ffb73d3280 --- /dev/null +++ b/plugins/DbChecker/src/utf.cpp @@ -0,0 +1,69 @@ +/*
+
+Miranda IM: the free IM client for Microsoft* Windows*
+
+Copyright 2000-2009 Miranda ICQ/IM project,
+all portions of this codebase are copyrighted to the people
+listed in contributors.txt.
+
+ Copyright 2000 Alexandre Julliard of Wine project
+ (UTF-8 conversion routines)
+
+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 2
+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, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#include "dbchecker.h"
+
+bool is_utf8_string(const char* str)
+{
+ int expect_bytes = 0, utf_found = 0;
+
+ if (!str) return 0;
+
+ while (*str) {
+ if ((*str & 0x80) == 0) {
+ /* Looks like an ASCII character */
+ if (expect_bytes)
+ /* byte of UTF-8 character expected */
+ return 0;
+ }
+ else {
+ /* Looks like byte of an UTF-8 character */
+ if (expect_bytes) {
+ /* expect_bytes already set: first byte of UTF-8 char already seen */
+ if ((*str & 0xC0) != 0x80) {
+ /* again first byte ?!?! */
+ return 0;
+ }
+ }
+ else {
+ /* First byte of the UTF-8 character */
+ /* count initial one bits and set expect_bytes to 1 less */
+ char ch = *str;
+ while (ch & 0x80) {
+ expect_bytes++;
+ ch = (ch & 0x7f) << 1;
+ }
+ }
+ /* OK, next byte of UTF-8 character */
+ /* Decrement number of expected bytes */
+ if (--expect_bytes == 0)
+ utf_found = 1;
+ }
+ str++;
+ }
+
+ return (utf_found && expect_bytes == 0);
+}
|