diff options
Diffstat (limited to 'plugins/CryptoPP/src/utf8.cpp')
| -rw-r--r-- | plugins/CryptoPP/src/utf8.cpp | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/plugins/CryptoPP/src/utf8.cpp b/plugins/CryptoPP/src/utf8.cpp new file mode 100644 index 0000000000..e071e3aaeb --- /dev/null +++ b/plugins/CryptoPP/src/utf8.cpp @@ -0,0 +1,149 @@ +#include "commonheaders.h"
+
+LPSTR szOut = NULL;
+LPWSTR wszOut = NULL;
+
+LPSTR __cdecl utf8encode(LPCWSTR str) {
+
+// LPSTR szOut;
+ LPWSTR wszTemp, w;
+ int len, i;
+
+ if (str == NULL)
+ return NULL;
+
+ wszTemp = (LPWSTR)str;
+
+ len = 0;
+ for (w=wszTemp; *w; w++) {
+ if (*w < 0x0080) len++;
+ else if (*w < 0x0800) len += 2;
+ else len += 3;
+ }
+
+ SAFE_FREE(szOut);
+ if ((szOut = (LPSTR) malloc(len + 1)) == NULL)
+ return NULL;
+
+ i = 0;
+ for (w=wszTemp; *w; w++) {
+ if (*w < 0x0080)
+ szOut[i++] = (BYTE) *w;
+ else if (*w < 0x0800) {
+ szOut[i++] = 0xc0 | (((*w) >> 6) &0x3f);
+ szOut[i++] = 0x80 | ((*w) & 0x3f);
+ }
+ else {
+ szOut[i++] = 0xe0 | ((*w) >> 12);
+ szOut[i++] = 0x80 | (((*w) >> 6) & 0x3f);
+ szOut[i++] = 0x80 | ((*w) & 0x3f);
+ }
+ }
+ szOut[i] = '\0';
+ return szOut;
+}
+
+LPWSTR __cdecl utf8decode(LPCSTR str) {
+
+ int i, len;
+ LPSTR p;
+// LPWSTR wszOut;
+
+ if (str == NULL) return NULL;
+
+ len = strlen(str)+1;
+
+ SAFE_FREE(wszOut);
+ if ((wszOut = (LPWSTR) malloc(len*sizeof(WCHAR))) == NULL)
+ return NULL;
+ p = (LPSTR)str;
+ i = 0;
+ while (*p) {
+ if ((p[0] & 0x80) == 0) {
+ wszOut[i++] = *(p++);
+ continue;
+ }
+ if ((p[0] & 0xe0) == 0xe0 && (p[1] & 0xc0) == 0x80 && (p[2] & 0xc0) == 0x80) {
+ wszOut[i] = (*(p++) & 0x0f) << 12;
+ wszOut[i] |= (*(p++) & 0x3f) << 6;
+ wszOut[i++] |= (*(p++) & 0x3f);
+ continue;
+ }
+ if ((p[0] & 0xe0) == 0xc0 && (p[1] & 0xc0) == 0x80) {
+ wszOut[i] = (*(p++) & 0x1f) << 6;
+ wszOut[i++] |= (*(p++) & 0x3f);
+ continue;
+ }
+ wszOut[i++] = *p++;
+ }
+ wszOut[i] = '\0';
+
+ return wszOut;
+}
+
+
+// Returns true if the buffer only contains 7-bit characters.
+int __cdecl is_7bit_string(LPCSTR str) {
+ while( *str ) {
+ if ( *str & 0x80 ) {
+ return FALSE;
+ break;
+ }
+ str++;
+ }
+
+ return TRUE;
+}
+
+
+//Copyright (C) 2001, 2002 Peter Verthez
+//under GNU LGPL
+int __cdecl is_utf8_string(LPCSTR str) {
+ int expect_bytes = 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 {
+ /* OK, ASCII character expected */
+ str++;
+ }
+ }
+ 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) {
+ /* OK, next byte of UTF-8 character */
+ /* Decrement number of expected bytes */
+ expect_bytes--;
+ str++;
+ }
+ else {
+ /* 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;
+ }
+ expect_bytes--;
+ str++;
+ }
+ }
+ }
+
+ return (expect_bytes == 0);
+}
+
+// EOF
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