mirror of https://github.com/lukechilds/node.git
Browse Source
* No feature changes. * Bug fixes. * Details: http://site.icu-project.org/download/59 Fixes: https://github.com/nodejs/node/issues/12077 PR-URL: https://github.com/nodejs/node/pull/12486 Refs: https://github.com/nodejs/node/issues/7844 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Refael Ackermann <refack@gmail.com>v6
Steven R. Loomis
8 years ago
899 changed files with 11192 additions and 6834 deletions
@ -1,8 +1,8 @@ |
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Small ICU sources - auto generated by shrink-icu-src.py |
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|
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This directory contains the ICU subset used by --with-intl=small-icu (the default) |
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It is a strict subset of ICU 58 source files with the following exception(s): |
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* deps/icu-small/source/data/in/icudt58l.dat : Reduced-size data file |
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It is a strict subset of ICU 59 source files with the following exception(s): |
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* deps/icu-small/source/data/in/icudt59l.dat : Reduced-size data file |
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|
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|
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To rebuild this directory, see ../../tools/icu/README.md |
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|
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@ -1,4 +1,4 @@ |
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// Copyright (C) 2016 and later: Unicode, Inc. and others.
|
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// © 2016 and later: Unicode, Inc. and others.
|
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// License & terms of use: http://www.unicode.org/copyright.html
|
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/*
|
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****************************************************************************** |
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@ -1,4 +1,4 @@ |
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// Copyright (C) 2016 and later: Unicode, Inc. and others.
|
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// © 2016 and later: Unicode, Inc. and others.
|
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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****************************************************************************** |
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@ -0,0 +1,346 @@ |
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// © 2017 and later: Unicode, Inc. and others.
|
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// License & terms of use: http://www.unicode.org/copyright.html
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|
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// edits.cpp
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// created: 2017feb08 Markus W. Scherer
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|
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#include "unicode/utypes.h" |
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#include "unicode/edits.h" |
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#include "cmemory.h" |
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#include "uassert.h" |
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|
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U_NAMESPACE_BEGIN |
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|
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namespace { |
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|
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// 0000uuuuuuuuuuuu records u+1 unchanged text units.
|
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const int32_t MAX_UNCHANGED_LENGTH = 0x1000; |
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const int32_t MAX_UNCHANGED = MAX_UNCHANGED_LENGTH - 1; |
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|
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// 0wwwcccccccccccc with w=1..6 records ccc+1 replacements of w:w text units.
|
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// No length change.
|
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const int32_t MAX_SHORT_WIDTH = 6; |
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const int32_t MAX_SHORT_CHANGE_LENGTH = 0xfff; |
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const int32_t MAX_SHORT_CHANGE = 0x6fff; |
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|
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// 0111mmmmmmnnnnnn records a replacement of m text units with n.
|
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// m or n = 61: actual length follows in the next edits array unit.
|
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// m or n = 62..63: actual length follows in the next two edits array units.
|
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// Bit 30 of the actual length is in the head unit.
|
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// Trailing units have bit 15 set.
|
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const int32_t LENGTH_IN_1TRAIL = 61; |
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const int32_t LENGTH_IN_2TRAIL = 62; |
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|
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} // namespace
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|
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Edits::~Edits() { |
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if(array != stackArray) { |
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uprv_free(array); |
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} |
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} |
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|
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void Edits::reset() { |
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length = delta = 0; |
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} |
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|
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void Edits::addUnchanged(int32_t unchangedLength) { |
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if(U_FAILURE(errorCode) || unchangedLength == 0) { return; } |
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if(unchangedLength < 0) { |
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errorCode = U_ILLEGAL_ARGUMENT_ERROR; |
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return; |
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} |
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// Merge into previous unchanged-text record, if any.
|
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int32_t last = lastUnit(); |
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if(last < MAX_UNCHANGED) { |
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int32_t remaining = MAX_UNCHANGED - last; |
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if (remaining >= unchangedLength) { |
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setLastUnit(last + unchangedLength); |
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return; |
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} |
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setLastUnit(MAX_UNCHANGED); |
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unchangedLength -= remaining; |
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} |
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// Split large lengths into multiple units.
|
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while(unchangedLength >= MAX_UNCHANGED_LENGTH) { |
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append(MAX_UNCHANGED); |
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unchangedLength -= MAX_UNCHANGED_LENGTH; |
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} |
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// Write a small (remaining) length.
|
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if(unchangedLength > 0) { |
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append(unchangedLength - 1); |
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} |
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} |
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|
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void Edits::addReplace(int32_t oldLength, int32_t newLength) { |
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if(U_FAILURE(errorCode)) { return; } |
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if(oldLength == newLength && 0 < oldLength && oldLength <= MAX_SHORT_WIDTH) { |
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// Replacement of short oldLength text units by same-length new text.
|
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// Merge into previous short-replacement record, if any.
|
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int32_t last = lastUnit(); |
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if(MAX_UNCHANGED < last && last < MAX_SHORT_CHANGE && |
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(last >> 12) == oldLength && (last & 0xfff) < MAX_SHORT_CHANGE_LENGTH) { |
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setLastUnit(last + 1); |
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return; |
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} |
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append(oldLength << 12); |
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return; |
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} |
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|
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if(oldLength < 0 || newLength < 0) { |
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errorCode = U_ILLEGAL_ARGUMENT_ERROR; |
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return; |
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} |
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if (oldLength == 0 && newLength == 0) { |
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return; |
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} |
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int32_t newDelta = newLength - oldLength; |
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if (newDelta != 0) { |
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if ((newDelta > 0 && delta >= 0 && newDelta > (INT32_MAX - delta)) || |
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(newDelta < 0 && delta < 0 && newDelta < (INT32_MIN - delta))) { |
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// Integer overflow or underflow.
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errorCode = U_INDEX_OUTOFBOUNDS_ERROR; |
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return; |
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} |
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delta += newDelta; |
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} |
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|
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int32_t head = 0x7000; |
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if (oldLength < LENGTH_IN_1TRAIL && newLength < LENGTH_IN_1TRAIL) { |
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head |= oldLength << 6; |
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head |= newLength; |
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append(head); |
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} else if ((capacity - length) >= 5 || growArray()) { |
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int32_t limit = length + 1; |
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if(oldLength < LENGTH_IN_1TRAIL) { |
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head |= oldLength << 6; |
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} else if(oldLength <= 0x7fff) { |
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head |= LENGTH_IN_1TRAIL << 6; |
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array[limit++] = (uint16_t)(0x8000 | oldLength); |
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} else { |
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head |= (LENGTH_IN_2TRAIL + (oldLength >> 30)) << 6; |
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array[limit++] = (uint16_t)(0x8000 | (oldLength >> 15)); |
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array[limit++] = (uint16_t)(0x8000 | oldLength); |
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} |
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if(newLength < LENGTH_IN_1TRAIL) { |
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head |= newLength; |
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} else if(newLength <= 0x7fff) { |
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head |= LENGTH_IN_1TRAIL; |
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array[limit++] = (uint16_t)(0x8000 | newLength); |
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} else { |
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head |= LENGTH_IN_2TRAIL + (newLength >> 30); |
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array[limit++] = (uint16_t)(0x8000 | (newLength >> 15)); |
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array[limit++] = (uint16_t)(0x8000 | newLength); |
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} |
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array[length] = (uint16_t)head; |
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length = limit; |
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} |
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} |
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|
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void Edits::append(int32_t r) { |
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if(length < capacity || growArray()) { |
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array[length++] = (uint16_t)r; |
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} |
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} |
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|
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UBool Edits::growArray() { |
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int32_t newCapacity; |
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if (array == stackArray) { |
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newCapacity = 2000; |
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} else if (capacity == INT32_MAX) { |
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// Not U_BUFFER_OVERFLOW_ERROR because that could be confused on a string transform API
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// with a result-string-buffer overflow.
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errorCode = U_INDEX_OUTOFBOUNDS_ERROR; |
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return FALSE; |
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} else if (capacity >= (INT32_MAX / 2)) { |
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newCapacity = INT32_MAX; |
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} else { |
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newCapacity = 2 * capacity; |
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} |
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// Grow by at least 5 units so that a maximal change record will fit.
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if ((newCapacity - capacity) < 5) { |
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errorCode = U_INDEX_OUTOFBOUNDS_ERROR; |
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return FALSE; |
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} |
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uint16_t *newArray = (uint16_t *)uprv_malloc((size_t)newCapacity * 2); |
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if (newArray == NULL) { |
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errorCode = U_MEMORY_ALLOCATION_ERROR; |
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return FALSE; |
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} |
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uprv_memcpy(newArray, array, (size_t)length * 2); |
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if (array != stackArray) { |
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uprv_free(array); |
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} |
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array = newArray; |
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capacity = newCapacity; |
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return TRUE; |
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} |
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|
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UBool Edits::copyErrorTo(UErrorCode &outErrorCode) { |
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if (U_FAILURE(outErrorCode)) { return TRUE; } |
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if (U_SUCCESS(errorCode)) { return FALSE; } |
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outErrorCode = errorCode; |
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return TRUE; |
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} |
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|
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UBool Edits::hasChanges() const { |
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if (delta != 0) { |
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return TRUE; |
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} |
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for (int32_t i = 0; i < length; ++i) { |
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if (array[i] > MAX_UNCHANGED) { |
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return TRUE; |
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} |
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} |
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return FALSE; |
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} |
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|
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Edits::Iterator::Iterator(const uint16_t *a, int32_t len, UBool oc, UBool crs) : |
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array(a), index(0), length(len), remaining(0), |
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onlyChanges_(oc), coarse(crs), |
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changed(FALSE), oldLength_(0), newLength_(0), |
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srcIndex(0), replIndex(0), destIndex(0) {} |
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|
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int32_t Edits::Iterator::readLength(int32_t head) { |
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if (head < LENGTH_IN_1TRAIL) { |
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return head; |
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} else if (head < LENGTH_IN_2TRAIL) { |
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U_ASSERT(index < length); |
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U_ASSERT(array[index] >= 0x8000); |
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return array[index++] & 0x7fff; |
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} else { |
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U_ASSERT((index + 2) <= length); |
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U_ASSERT(array[index] >= 0x8000); |
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U_ASSERT(array[index + 1] >= 0x8000); |
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int32_t len = ((head & 1) << 30) | |
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((int32_t)(array[index] & 0x7fff) << 15) | |
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(array[index + 1] & 0x7fff); |
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index += 2; |
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return len; |
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} |
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} |
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|
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void Edits::Iterator::updateIndexes() { |
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srcIndex += oldLength_; |
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if (changed) { |
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replIndex += newLength_; |
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} |
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destIndex += newLength_; |
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} |
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|
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UBool Edits::Iterator::noNext() { |
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// No change beyond the string.
|
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changed = FALSE; |
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oldLength_ = newLength_ = 0; |
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return FALSE; |
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} |
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|
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UBool Edits::Iterator::next(UBool onlyChanges, UErrorCode &errorCode) { |
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if (U_FAILURE(errorCode)) { return FALSE; } |
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// We have an errorCode in case we need to start guarding against integer overflows.
|
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// It is also convenient for caller loops if we bail out when an error was set elsewhere.
|
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updateIndexes(); |
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if (remaining > 0) { |
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// Fine-grained iterator: Continue a sequence of equal-length changes.
|
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--remaining; |
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return TRUE; |
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} |
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if (index >= length) { |
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return noNext(); |
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} |
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int32_t u = array[index++]; |
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if (u <= MAX_UNCHANGED) { |
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// Combine adjacent unchanged ranges.
|
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changed = FALSE; |
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oldLength_ = u + 1; |
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while (index < length && (u = array[index]) <= MAX_UNCHANGED) { |
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++index; |
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oldLength_ += u + 1; |
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} |
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newLength_ = oldLength_; |
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if (onlyChanges) { |
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updateIndexes(); |
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if (index >= length) { |
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return noNext(); |
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} |
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// already fetched u > MAX_UNCHANGED at index
|
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++index; |
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} else { |
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return TRUE; |
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} |
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} |
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changed = TRUE; |
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if (u <= MAX_SHORT_CHANGE) { |
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if (coarse) { |
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int32_t w = u >> 12; |
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int32_t len = (u & 0xfff) + 1; |
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oldLength_ = newLength_ = len * w; |
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} else { |
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// Split a sequence of equal-length changes that was compressed into one unit.
|
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oldLength_ = newLength_ = u >> 12; |
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remaining = u & 0xfff; |
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return TRUE; |
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} |
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} else { |
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U_ASSERT(u <= 0x7fff); |
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oldLength_ = readLength((u >> 6) & 0x3f); |
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newLength_ = readLength(u & 0x3f); |
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if (!coarse) { |
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return TRUE; |
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} |
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} |
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// Combine adjacent changes.
|
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while (index < length && (u = array[index]) > MAX_UNCHANGED) { |
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++index; |
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if (u <= MAX_SHORT_CHANGE) { |
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int32_t w = u >> 12; |
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int32_t len = (u & 0xfff) + 1; |
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len = len * w; |
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oldLength_ += len; |
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newLength_ += len; |
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} else { |
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U_ASSERT(u <= 0x7fff); |
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int32_t oldLen = readLength((u >> 6) & 0x3f); |
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int32_t newLen = readLength(u & 0x3f); |
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oldLength_ += oldLen; |
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newLength_ += newLen; |
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} |
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} |
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return TRUE; |
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} |
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|
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UBool Edits::Iterator::findSourceIndex(int32_t i, UErrorCode &errorCode) { |
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if (U_FAILURE(errorCode) || i < 0) { return FALSE; } |
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if (i < srcIndex) { |
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// Reset the iterator to the start.
|
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index = remaining = oldLength_ = newLength_ = srcIndex = replIndex = destIndex = 0; |
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} else if (i < (srcIndex + oldLength_)) { |
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// The index is in the current span.
|
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return TRUE; |
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} |
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while (next(FALSE, errorCode)) { |
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if (i < (srcIndex + oldLength_)) { |
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// The index is in the current span.
|
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return TRUE; |
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} |
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if (remaining > 0) { |
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// Is the index in one of the remaining compressed edits?
|
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// srcIndex is the start of the current span, before the remaining ones.
|
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int32_t len = (remaining + 1) * oldLength_; |
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if (i < (srcIndex + len)) { |
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int32_t n = (i - srcIndex) / oldLength_; // 1 <= n <= remaining
|
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len = n * oldLength_; |
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srcIndex += len; |
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replIndex += len; |
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destIndex += len; |
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remaining -= n; |
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return TRUE; |
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} |
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// Make next() skip all of these edits at once.
|
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oldLength_ = newLength_ = len; |
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remaining = 0; |
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} |
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} |
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return FALSE; |
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} |
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|
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U_NAMESPACE_END |
|||
@ -1,4 +1,4 @@ |
|||
// Copyright (C) 2016 and later: Unicode, Inc. and others.
|
|||
// © 2016 and later: Unicode, Inc. and others.
|
|||
// License & terms of use: http://www.unicode.org/copyright.html
|
|||
/*
|
|||
****************************************************************************** |
|||
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