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-rw-r--r--Build/source/libs/icu/icu-50.1/common/cstring.c339
1 files changed, 339 insertions, 0 deletions
diff --git a/Build/source/libs/icu/icu-50.1/common/cstring.c b/Build/source/libs/icu/icu-50.1/common/cstring.c
new file mode 100644
index 00000000000..3af959eb7d0
--- /dev/null
+++ b/Build/source/libs/icu/icu-50.1/common/cstring.c
@@ -0,0 +1,339 @@
+/*
+******************************************************************************
+*
+* Copyright (C) 1997-2011, International Business Machines
+* Corporation and others. All Rights Reserved.
+*
+******************************************************************************
+*
+* File CSTRING.C
+*
+* @author Helena Shih
+*
+* Modification History:
+*
+* Date Name Description
+* 6/18/98 hshih Created
+* 09/08/98 stephen Added include for ctype, for Mac Port
+* 11/15/99 helena Integrated S/390 IEEE changes.
+******************************************************************************
+*/
+
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "unicode/utypes.h"
+#include "cmemory.h"
+#include "cstring.h"
+#include "uassert.h"
+
+/*
+ * We hardcode case conversion for invariant characters to match our expectation
+ * and the compiler execution charset.
+ * This prevents problems on systems
+ * - with non-default casing behavior, like Turkish system locales where
+ * tolower('I') maps to dotless i and toupper('i') maps to dotted I
+ * - where there are no lowercase Latin characters at all, or using different
+ * codes (some old EBCDIC codepages)
+ *
+ * This works because the compiler usually runs on a platform where the execution
+ * charset includes all of the invariant characters at their expected
+ * code positions, so that the char * string literals in ICU code match
+ * the char literals here.
+ *
+ * Note that the set of lowercase Latin letters is discontiguous in EBCDIC
+ * and the set of uppercase Latin letters is discontiguous as well.
+ */
+
+U_CAPI UBool U_EXPORT2
+uprv_isASCIILetter(char c) {
+#if U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+ return
+ ('a'<=c && c<='i') || ('j'<=c && c<='r') || ('s'<=c && c<='z') ||
+ ('A'<=c && c<='I') || ('J'<=c && c<='R') || ('S'<=c && c<='Z');
+#else
+ return ('a'<=c && c<='z') || ('A'<=c && c<='Z');
+#endif
+}
+
+U_CAPI char U_EXPORT2
+uprv_toupper(char c) {
+#if U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+ if(('a'<=c && c<='i') || ('j'<=c && c<='r') || ('s'<=c && c<='z')) {
+ c=(char)(c+('A'-'a'));
+ }
+#else
+ if('a'<=c && c<='z') {
+ c=(char)(c+('A'-'a'));
+ }
+#endif
+ return c;
+}
+
+
+#if 0
+/*
+ * Commented out because cstring.h defines uprv_tolower() to be
+ * the same as either uprv_asciitolower() or uprv_ebcdictolower()
+ * to reduce the amount of code to cover with tests.
+ *
+ * Note that this uprv_tolower() definition is likely to work for most
+ * charset families, not just ASCII and EBCDIC, because its #else branch
+ * is written generically.
+ */
+U_CAPI char U_EXPORT2
+uprv_tolower(char c) {
+#if U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+ if(('A'<=c && c<='I') || ('J'<=c && c<='R') || ('S'<=c && c<='Z')) {
+ c=(char)(c+('a'-'A'));
+ }
+#else
+ if('A'<=c && c<='Z') {
+ c=(char)(c+('a'-'A'));
+ }
+#endif
+ return c;
+}
+#endif
+
+U_CAPI char U_EXPORT2
+uprv_asciitolower(char c) {
+ if(0x41<=c && c<=0x5a) {
+ c=(char)(c+0x20);
+ }
+ return c;
+}
+
+U_CAPI char U_EXPORT2
+uprv_ebcdictolower(char c) {
+ if( (0xc1<=(uint8_t)c && (uint8_t)c<=0xc9) ||
+ (0xd1<=(uint8_t)c && (uint8_t)c<=0xd9) ||
+ (0xe2<=(uint8_t)c && (uint8_t)c<=0xe9)
+ ) {
+ c=(char)(c-0x40);
+ }
+ return c;
+}
+
+
+U_CAPI char* U_EXPORT2
+T_CString_toLowerCase(char* str)
+{
+ char* origPtr = str;
+
+ if (str) {
+ do
+ *str = (char)uprv_tolower(*str);
+ while (*(str++));
+ }
+
+ return origPtr;
+}
+
+U_CAPI char* U_EXPORT2
+T_CString_toUpperCase(char* str)
+{
+ char* origPtr = str;
+
+ if (str) {
+ do
+ *str = (char)uprv_toupper(*str);
+ while (*(str++));
+ }
+
+ return origPtr;
+}
+
+/*
+ * Takes a int32_t and fills in a char* string with that number "radix"-based.
+ * Does not handle negative values (makes an empty string for them).
+ * Writes at most 12 chars ("-2147483647" plus NUL).
+ * Returns the length of the string (not including the NUL).
+ */
+U_CAPI int32_t U_EXPORT2
+T_CString_integerToString(char* buffer, int32_t v, int32_t radix)
+{
+ char tbuf[30];
+ int32_t tbx = sizeof(tbuf);
+ uint8_t digit;
+ int32_t length = 0;
+ uint32_t uval;
+
+ U_ASSERT(radix>=2 && radix<=16);
+ uval = (uint32_t) v;
+ if(v<0 && radix == 10) {
+ /* Only in base 10 do we conside numbers to be signed. */
+ uval = (uint32_t)(-v);
+ buffer[length++] = '-';
+ }
+
+ tbx = sizeof(tbuf)-1;
+ tbuf[tbx] = 0; /* We are generating the digits backwards. Null term the end. */
+ do {
+ digit = (uint8_t)(uval % radix);
+ tbuf[--tbx] = (char)(T_CString_itosOffset(digit));
+ uval = uval / radix;
+ } while (uval != 0);
+
+ /* copy converted number into user buffer */
+ uprv_strcpy(buffer+length, tbuf+tbx);
+ length += sizeof(tbuf) - tbx -1;
+ return length;
+}
+
+
+
+/*
+ * Takes a int64_t and fills in a char* string with that number "radix"-based.
+ * Writes at most 21: chars ("-9223372036854775807" plus NUL).
+ * Returns the length of the string, not including the terminating NULL.
+ */
+U_CAPI int32_t U_EXPORT2
+T_CString_int64ToString(char* buffer, int64_t v, uint32_t radix)
+{
+ char tbuf[30];
+ int32_t tbx = sizeof(tbuf);
+ uint8_t digit;
+ int32_t length = 0;
+ uint64_t uval;
+
+ U_ASSERT(radix>=2 && radix<=16);
+ uval = (uint64_t) v;
+ if(v<0 && radix == 10) {
+ /* Only in base 10 do we conside numbers to be signed. */
+ uval = (uint64_t)(-v);
+ buffer[length++] = '-';
+ }
+
+ tbx = sizeof(tbuf)-1;
+ tbuf[tbx] = 0; /* We are generating the digits backwards. Null term the end. */
+ do {
+ digit = (uint8_t)(uval % radix);
+ tbuf[--tbx] = (char)(T_CString_itosOffset(digit));
+ uval = uval / radix;
+ } while (uval != 0);
+
+ /* copy converted number into user buffer */
+ uprv_strcpy(buffer+length, tbuf+tbx);
+ length += sizeof(tbuf) - tbx -1;
+ return length;
+}
+
+
+U_CAPI int32_t U_EXPORT2
+T_CString_stringToInteger(const char *integerString, int32_t radix)
+{
+ char *end;
+ return uprv_strtoul(integerString, &end, radix);
+
+}
+
+U_CAPI int U_EXPORT2
+uprv_stricmp(const char *str1, const char *str2) {
+ if(str1==NULL) {
+ if(str2==NULL) {
+ return 0;
+ } else {
+ return -1;
+ }
+ } else if(str2==NULL) {
+ return 1;
+ } else {
+ /* compare non-NULL strings lexically with lowercase */
+ int rc;
+ unsigned char c1, c2;
+
+ for(;;) {
+ c1=(unsigned char)*str1;
+ c2=(unsigned char)*str2;
+ if(c1==0) {
+ if(c2==0) {
+ return 0;
+ } else {
+ return -1;
+ }
+ } else if(c2==0) {
+ return 1;
+ } else {
+ /* compare non-zero characters with lowercase */
+ rc=(int)(unsigned char)uprv_tolower(c1)-(int)(unsigned char)uprv_tolower(c2);
+ if(rc!=0) {
+ return rc;
+ }
+ }
+ ++str1;
+ ++str2;
+ }
+ }
+}
+
+U_CAPI int U_EXPORT2
+uprv_strnicmp(const char *str1, const char *str2, uint32_t n) {
+ if(str1==NULL) {
+ if(str2==NULL) {
+ return 0;
+ } else {
+ return -1;
+ }
+ } else if(str2==NULL) {
+ return 1;
+ } else {
+ /* compare non-NULL strings lexically with lowercase */
+ int rc;
+ unsigned char c1, c2;
+
+ for(; n--;) {
+ c1=(unsigned char)*str1;
+ c2=(unsigned char)*str2;
+ if(c1==0) {
+ if(c2==0) {
+ return 0;
+ } else {
+ return -1;
+ }
+ } else if(c2==0) {
+ return 1;
+ } else {
+ /* compare non-zero characters with lowercase */
+ rc=(int)(unsigned char)uprv_tolower(c1)-(int)(unsigned char)uprv_tolower(c2);
+ if(rc!=0) {
+ return rc;
+ }
+ }
+ ++str1;
+ ++str2;
+ }
+ }
+
+ return 0;
+}
+
+U_CAPI char* U_EXPORT2
+uprv_strdup(const char *src) {
+ size_t len = uprv_strlen(src) + 1;
+ char *dup = (char *) uprv_malloc(len);
+
+ if (dup) {
+ uprv_memcpy(dup, src, len);
+ }
+
+ return dup;
+}
+
+U_CAPI char* U_EXPORT2
+uprv_strndup(const char *src, int32_t n) {
+ char *dup;
+
+ if(n < 0) {
+ dup = uprv_strdup(src);
+ } else {
+ dup = (char*)uprv_malloc(n+1);
+ if (dup) {
+ uprv_memcpy(dup, src, n);
+ dup[n] = 0;
+ }
+ }
+
+ return dup;
+}
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