diff options
Diffstat (limited to 'security/sandbox/chromium/base/third_party/icu/icu_utf.h')
| -rw-r--r-- | security/sandbox/chromium/base/third_party/icu/icu_utf.h | 400 |
1 files changed, 0 insertions, 400 deletions
diff --git a/security/sandbox/chromium/base/third_party/icu/icu_utf.h b/security/sandbox/chromium/base/third_party/icu/icu_utf.h deleted file mode 100644 index 4370fdec1..000000000 --- a/security/sandbox/chromium/base/third_party/icu/icu_utf.h +++ /dev/null @@ -1,400 +0,0 @@ -/* -******************************************************************************* -* -* Copyright (C) 1999-2004, International Business Machines -* Corporation and others. All Rights Reserved. -* -******************************************************************************* -* file name: utf.h -* encoding: US-ASCII -* tab size: 8 (not used) -* indentation:4 -* -* created on: 1999sep09 -* created by: Markus W. Scherer -*/ - -#ifndef BASE_THIRD_PARTY_ICU_ICU_UTF_H_ -#define BASE_THIRD_PARTY_ICU_ICU_UTF_H_ - -#include <stdint.h> - -namespace base_icu { - -typedef int32_t UChar32; -typedef uint16_t UChar; -typedef int8_t UBool; - -// General --------------------------------------------------------------------- -// from utf.h - -/** - * This value is intended for sentinel values for APIs that - * (take or) return single code points (UChar32). - * It is outside of the Unicode code point range 0..0x10ffff. - * - * For example, a "done" or "error" value in a new API - * could be indicated with CBU_SENTINEL. - * - * ICU APIs designed before ICU 2.4 usually define service-specific "done" - * values, mostly 0xffff. - * Those may need to be distinguished from - * actual U+ffff text contents by calling functions like - * CharacterIterator::hasNext() or UnicodeString::length(). - * - * @return -1 - * @see UChar32 - * @stable ICU 2.4 - */ -#define CBU_SENTINEL (-1) - -/** - * Is this code point a Unicode noncharacter? - * @param c 32-bit code point - * @return TRUE or FALSE - * @stable ICU 2.4 - */ -#define CBU_IS_UNICODE_NONCHAR(c) \ - ((c) >= 0xfdd0 && ((uint32_t)(c) <= 0xfdef || ((c)&0xfffe) == 0xfffe) && \ - (uint32_t)(c) <= 0x10ffff) - -/** - * Is c a Unicode code point value (0..U+10ffff) - * that can be assigned a character? - * - * Code points that are not characters include: - * - single surrogate code points (U+d800..U+dfff, 2048 code points) - * - the last two code points on each plane (U+__fffe and U+__ffff, 34 code points) - * - U+fdd0..U+fdef (new with Unicode 3.1, 32 code points) - * - the highest Unicode code point value is U+10ffff - * - * This means that all code points below U+d800 are character code points, - * and that boundary is tested first for performance. - * - * @param c 32-bit code point - * @return TRUE or FALSE - * @stable ICU 2.4 - */ -#define CBU_IS_UNICODE_CHAR(c) \ - ((uint32_t)(c) < 0xd800 || \ - ((uint32_t)(c) > 0xdfff && (uint32_t)(c) <= 0x10ffff && \ - !CBU_IS_UNICODE_NONCHAR(c))) - -/** - * Is this code point a surrogate (U+d800..U+dfff)? - * @param c 32-bit code point - * @return TRUE or FALSE - * @stable ICU 2.4 - */ -#define CBU_IS_SURROGATE(c) (((c)&0xfffff800)==0xd800) - -/** - * Assuming c is a surrogate code point (U_IS_SURROGATE(c)), - * is it a lead surrogate? - * @param c 32-bit code point - * @return TRUE or FALSE - * @stable ICU 2.4 - */ -#define CBU_IS_SURROGATE_LEAD(c) (((c)&0x400)==0) - - -// UTF-8 macros ---------------------------------------------------------------- -// from utf8.h - -extern const uint8_t utf8_countTrailBytes[256]; - -/** - * Count the trail bytes for a UTF-8 lead byte. - * @internal - */ -#define CBU8_COUNT_TRAIL_BYTES(leadByte) \ - (base_icu::utf8_countTrailBytes[(uint8_t)leadByte]) - -/** - * Mask a UTF-8 lead byte, leave only the lower bits that form part of the code point value. - * @internal - */ -#define CBU8_MASK_LEAD_BYTE(leadByte, countTrailBytes) ((leadByte)&=(1<<(6-(countTrailBytes)))-1) - -/** - * Does this code unit (byte) encode a code point by itself (US-ASCII 0..0x7f)? - * @param c 8-bit code unit (byte) - * @return TRUE or FALSE - * @stable ICU 2.4 - */ -#define CBU8_IS_SINGLE(c) (((c)&0x80)==0) - -/** - * Is this code unit (byte) a UTF-8 lead byte? - * @param c 8-bit code unit (byte) - * @return TRUE or FALSE - * @stable ICU 2.4 - */ -#define CBU8_IS_LEAD(c) ((uint8_t)((c)-0xc0) < 0x3e) - -/** - * Is this code unit (byte) a UTF-8 trail byte? - * @param c 8-bit code unit (byte) - * @return TRUE or FALSE - * @stable ICU 2.4 - */ -#define CBU8_IS_TRAIL(c) (((c)&0xc0)==0x80) - -/** - * How many code units (bytes) are used for the UTF-8 encoding - * of this Unicode code point? - * @param c 32-bit code point - * @return 1..4, or 0 if c is a surrogate or not a Unicode code point - * @stable ICU 2.4 - */ -#define CBU8_LENGTH(c) \ - ((uint32_t)(c) <= 0x7f \ - ? 1 \ - : ((uint32_t)(c) <= 0x7ff \ - ? 2 \ - : ((uint32_t)(c) <= 0xd7ff \ - ? 3 \ - : ((uint32_t)(c) <= 0xdfff || (uint32_t)(c) > 0x10ffff \ - ? 0 \ - : ((uint32_t)(c) <= 0xffff ? 3 : 4))))) - -/** - * The maximum number of UTF-8 code units (bytes) per Unicode code point (U+0000..U+10ffff). - * @return 4 - * @stable ICU 2.4 - */ -#define CBU8_MAX_LENGTH 4 - -/** - * Function for handling "next code point" with error-checking. - * @internal - */ -UChar32 utf8_nextCharSafeBody(const uint8_t* s, - int32_t* pi, - int32_t length, - UChar32 c, - UBool strict); - -/** - * Get a code point from a string at a code point boundary offset, - * and advance the offset to the next code point boundary. - * (Post-incrementing forward iteration.) - * "Safe" macro, checks for illegal sequences and for string boundaries. - * - * The offset may point to the lead byte of a multi-byte sequence, - * in which case the macro will read the whole sequence. - * If the offset points to a trail byte or an illegal UTF-8 sequence, then - * c is set to a negative value. - * - * @param s const uint8_t * string - * @param i string offset, i<length - * @param length string length - * @param c output UChar32 variable, set to <0 in case of an error - * @see CBU8_NEXT_UNSAFE - * @stable ICU 2.4 - */ -#define CBU8_NEXT(s, i, length, c) \ - { \ - (c) = (s)[(i)++]; \ - if (((uint8_t)(c)) >= 0x80) { \ - if (CBU8_IS_LEAD(c)) { \ - (c) = base_icu::utf8_nextCharSafeBody((const uint8_t*)s, &(i), \ - (int32_t)(length), c, -1); \ - } else { \ - (c) = CBU_SENTINEL; \ - } \ - } \ - } - -/** - * Append a code point to a string, overwriting 1 to 4 bytes. - * The offset points to the current end of the string contents - * and is advanced (post-increment). - * "Unsafe" macro, assumes a valid code point and sufficient space in the - * string. - * Otherwise, the result is undefined. - * - * @param s const uint8_t * string buffer - * @param i string offset - * @param c code point to append - * @see CBU8_APPEND - * @stable ICU 2.4 - */ -#define CBU8_APPEND_UNSAFE(s, i, c) \ - { \ - if ((uint32_t)(c) <= 0x7f) { \ - (s)[(i)++] = (uint8_t)(c); \ - } else { \ - if ((uint32_t)(c) <= 0x7ff) { \ - (s)[(i)++] = (uint8_t)(((c) >> 6) | 0xc0); \ - } else { \ - if ((uint32_t)(c) <= 0xffff) { \ - (s)[(i)++] = (uint8_t)(((c) >> 12) | 0xe0); \ - } else { \ - (s)[(i)++] = (uint8_t)(((c) >> 18) | 0xf0); \ - (s)[(i)++] = (uint8_t)((((c) >> 12) & 0x3f) | 0x80); \ - } \ - (s)[(i)++] = (uint8_t)((((c) >> 6) & 0x3f) | 0x80); \ - } \ - (s)[(i)++] = (uint8_t)(((c)&0x3f) | 0x80); \ - } \ - } - -// UTF-16 macros --------------------------------------------------------------- -// from utf16.h - -/** - * Does this code unit alone encode a code point (BMP, not a surrogate)? - * @param c 16-bit code unit - * @return TRUE or FALSE - * @stable ICU 2.4 - */ -#define CBU16_IS_SINGLE(c) !CBU_IS_SURROGATE(c) - -/** - * Is this code unit a lead surrogate (U+d800..U+dbff)? - * @param c 16-bit code unit - * @return TRUE or FALSE - * @stable ICU 2.4 - */ -#define CBU16_IS_LEAD(c) (((c)&0xfffffc00)==0xd800) - -/** - * Is this code unit a trail surrogate (U+dc00..U+dfff)? - * @param c 16-bit code unit - * @return TRUE or FALSE - * @stable ICU 2.4 - */ -#define CBU16_IS_TRAIL(c) (((c)&0xfffffc00)==0xdc00) - -/** - * Is this code unit a surrogate (U+d800..U+dfff)? - * @param c 16-bit code unit - * @return TRUE or FALSE - * @stable ICU 2.4 - */ -#define CBU16_IS_SURROGATE(c) CBU_IS_SURROGATE(c) - -/** - * Assuming c is a surrogate code point (U16_IS_SURROGATE(c)), - * is it a lead surrogate? - * @param c 16-bit code unit - * @return TRUE or FALSE - * @stable ICU 2.4 - */ -#define CBU16_IS_SURROGATE_LEAD(c) (((c)&0x400)==0) - -/** - * Helper constant for CBU16_GET_SUPPLEMENTARY. - * @internal - */ -#define CBU16_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000) - -/** - * Get a supplementary code point value (U+10000..U+10ffff) - * from its lead and trail surrogates. - * The result is undefined if the input values are not - * lead and trail surrogates. - * - * @param lead lead surrogate (U+d800..U+dbff) - * @param trail trail surrogate (U+dc00..U+dfff) - * @return supplementary code point (U+10000..U+10ffff) - * @stable ICU 2.4 - */ -#define CBU16_GET_SUPPLEMENTARY(lead, trail) \ - (((base_icu::UChar32)(lead)<<10UL)+(base_icu::UChar32)(trail)-CBU16_SURROGATE_OFFSET) - - -/** - * Get the lead surrogate (0xd800..0xdbff) for a - * supplementary code point (0x10000..0x10ffff). - * @param supplementary 32-bit code point (U+10000..U+10ffff) - * @return lead surrogate (U+d800..U+dbff) for supplementary - * @stable ICU 2.4 - */ -#define CBU16_LEAD(supplementary) \ - (base_icu::UChar)(((supplementary)>>10)+0xd7c0) - -/** - * Get the trail surrogate (0xdc00..0xdfff) for a - * supplementary code point (0x10000..0x10ffff). - * @param supplementary 32-bit code point (U+10000..U+10ffff) - * @return trail surrogate (U+dc00..U+dfff) for supplementary - * @stable ICU 2.4 - */ -#define CBU16_TRAIL(supplementary) \ - (base_icu::UChar)(((supplementary)&0x3ff)|0xdc00) - -/** - * How many 16-bit code units are used to encode this Unicode code point? (1 or 2) - * The result is not defined if c is not a Unicode code point (U+0000..U+10ffff). - * @param c 32-bit code point - * @return 1 or 2 - * @stable ICU 2.4 - */ -#define CBU16_LENGTH(c) ((uint32_t)(c) <= 0xffff ? 1 : 2) - -/** - * The maximum number of 16-bit code units per Unicode code point (U+0000..U+10ffff). - * @return 2 - * @stable ICU 2.4 - */ -#define CBU16_MAX_LENGTH 2 - -/** - * Get a code point from a string at a code point boundary offset, - * and advance the offset to the next code point boundary. - * (Post-incrementing forward iteration.) - * "Safe" macro, handles unpaired surrogates and checks for string boundaries. - * - * The offset may point to the lead surrogate unit - * for a supplementary code point, in which case the macro will read - * the following trail surrogate as well. - * If the offset points to a trail surrogate or - * to a single, unpaired lead surrogate, then that itself - * will be returned as the code point. - * - * @param s const UChar * string - * @param i string offset, i<length - * @param length string length - * @param c output UChar32 variable - * @stable ICU 2.4 - */ -#define CBU16_NEXT(s, i, length, c) \ - { \ - (c) = (s)[(i)++]; \ - if (CBU16_IS_LEAD(c)) { \ - uint16_t __c2; \ - if ((i) < (length) && CBU16_IS_TRAIL(__c2 = (s)[(i)])) { \ - ++(i); \ - (c) = CBU16_GET_SUPPLEMENTARY((c), __c2); \ - } \ - } \ - } - -/** - * Append a code point to a string, overwriting 1 or 2 code units. - * The offset points to the current end of the string contents - * and is advanced (post-increment). - * "Unsafe" macro, assumes a valid code point and sufficient space in the string. - * Otherwise, the result is undefined. - * - * @param s const UChar * string buffer - * @param i string offset - * @param c code point to append - * @see CBU16_APPEND - * @stable ICU 2.4 - */ -#define CBU16_APPEND_UNSAFE(s, i, c) \ - { \ - if ((uint32_t)(c) <= 0xffff) { \ - (s)[(i)++] = (uint16_t)(c); \ - } else { \ - (s)[(i)++] = (uint16_t)(((c) >> 10) + 0xd7c0); \ - (s)[(i)++] = (uint16_t)(((c)&0x3ff) | 0xdc00); \ - } \ - } - -} // namesapce base_icu - -#endif // BASE_THIRD_PARTY_ICU_ICU_UTF_H_ |