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Diffstat (limited to 'deps/node/deps/icu-small/source/common/simpleformatter.cpp')
| -rw-r--r-- | deps/node/deps/icu-small/source/common/simpleformatter.cpp | 314 |
1 files changed, 0 insertions, 314 deletions
diff --git a/deps/node/deps/icu-small/source/common/simpleformatter.cpp b/deps/node/deps/icu-small/source/common/simpleformatter.cpp deleted file mode 100644 index f866e0a1..00000000 --- a/deps/node/deps/icu-small/source/common/simpleformatter.cpp +++ /dev/null @@ -1,314 +0,0 @@ -// © 2016 and later: Unicode, Inc. and others. -// License & terms of use: http://www.unicode.org/copyright.html -/* -****************************************************************************** -* Copyright (C) 2014-2016, International Business Machines -* Corporation and others. All Rights Reserved. -****************************************************************************** -* simpleformatter.cpp -*/ - -#include "unicode/utypes.h" -#include "unicode/simpleformatter.h" -#include "unicode/unistr.h" -#include "uassert.h" - -U_NAMESPACE_BEGIN - -namespace { - -/** - * Argument numbers must be smaller than this limit. - * Text segment lengths are offset by this much. - * This is currently the only unused char value in compiled patterns, - * except it is the maximum value of the first unit (max arg +1). - */ -const int32_t ARG_NUM_LIMIT = 0x100; -/** - * Initial and maximum char/UChar value set for a text segment. - * Segment length char values are from ARG_NUM_LIMIT+1 to this value here. - * Normally 0xffff, but can be as small as ARG_NUM_LIMIT+1 for testing. - */ -const UChar SEGMENT_LENGTH_PLACEHOLDER_CHAR = 0xffff; -/** - * Maximum length of a text segment. Longer segments are split into shorter ones. - */ -const int32_t MAX_SEGMENT_LENGTH = SEGMENT_LENGTH_PLACEHOLDER_CHAR - ARG_NUM_LIMIT; - -enum { - APOS = 0x27, - DIGIT_ZERO = 0x30, - DIGIT_ONE = 0x31, - DIGIT_NINE = 0x39, - OPEN_BRACE = 0x7b, - CLOSE_BRACE = 0x7d -}; - -inline UBool isInvalidArray(const void *array, int32_t length) { - return (length < 0 || (array == NULL && length != 0)); -} - -} // namespace - -SimpleFormatter &SimpleFormatter::operator=(const SimpleFormatter& other) { - if (this == &other) { - return *this; - } - compiledPattern = other.compiledPattern; - return *this; -} - -SimpleFormatter::~SimpleFormatter() {} - -UBool SimpleFormatter::applyPatternMinMaxArguments( - const UnicodeString &pattern, - int32_t min, int32_t max, - UErrorCode &errorCode) { - if (U_FAILURE(errorCode)) { - return FALSE; - } - // Parse consistent with MessagePattern, but - // - support only simple numbered arguments - // - build a simple binary structure into the result string - const UChar *patternBuffer = pattern.getBuffer(); - int32_t patternLength = pattern.length(); - // Reserve the first char for the number of arguments. - compiledPattern.setTo((UChar)0); - int32_t textLength = 0; - int32_t maxArg = -1; - UBool inQuote = FALSE; - for (int32_t i = 0; i < patternLength;) { - UChar c = patternBuffer[i++]; - if (c == APOS) { - if (i < patternLength && (c = patternBuffer[i]) == APOS) { - // double apostrophe, skip the second one - ++i; - } else if (inQuote) { - // skip the quote-ending apostrophe - inQuote = FALSE; - continue; - } else if (c == OPEN_BRACE || c == CLOSE_BRACE) { - // Skip the quote-starting apostrophe, find the end of the quoted literal text. - ++i; - inQuote = TRUE; - } else { - // The apostrophe is part of literal text. - c = APOS; - } - } else if (!inQuote && c == OPEN_BRACE) { - if (textLength > 0) { - compiledPattern.setCharAt(compiledPattern.length() - textLength - 1, - (UChar)(ARG_NUM_LIMIT + textLength)); - textLength = 0; - } - int32_t argNumber; - if ((i + 1) < patternLength && - 0 <= (argNumber = patternBuffer[i] - DIGIT_ZERO) && argNumber <= 9 && - patternBuffer[i + 1] == CLOSE_BRACE) { - i += 2; - } else { - // Multi-digit argument number (no leading zero) or syntax error. - // MessagePattern permits PatternProps.skipWhiteSpace(pattern, index) - // around the number, but this class does not. - argNumber = -1; - if (i < patternLength && DIGIT_ONE <= (c = patternBuffer[i++]) && c <= DIGIT_NINE) { - argNumber = c - DIGIT_ZERO; - while (i < patternLength && - DIGIT_ZERO <= (c = patternBuffer[i++]) && c <= DIGIT_NINE) { - argNumber = argNumber * 10 + (c - DIGIT_ZERO); - if (argNumber >= ARG_NUM_LIMIT) { - break; - } - } - } - if (argNumber < 0 || c != CLOSE_BRACE) { - errorCode = U_ILLEGAL_ARGUMENT_ERROR; - return FALSE; - } - } - if (argNumber > maxArg) { - maxArg = argNumber; - } - compiledPattern.append((UChar)argNumber); - continue; - } // else: c is part of literal text - // Append c and track the literal-text segment length. - if (textLength == 0) { - // Reserve a char for the length of a new text segment, preset the maximum length. - compiledPattern.append(SEGMENT_LENGTH_PLACEHOLDER_CHAR); - } - compiledPattern.append(c); - if (++textLength == MAX_SEGMENT_LENGTH) { - textLength = 0; - } - } - if (textLength > 0) { - compiledPattern.setCharAt(compiledPattern.length() - textLength - 1, - (UChar)(ARG_NUM_LIMIT + textLength)); - } - int32_t argCount = maxArg + 1; - if (argCount < min || max < argCount) { - errorCode = U_ILLEGAL_ARGUMENT_ERROR; - return FALSE; - } - compiledPattern.setCharAt(0, (UChar)argCount); - return TRUE; -} - -UnicodeString& SimpleFormatter::format( - const UnicodeString &value0, - UnicodeString &appendTo, UErrorCode &errorCode) const { - const UnicodeString *values[] = { &value0 }; - return formatAndAppend(values, 1, appendTo, NULL, 0, errorCode); -} - -UnicodeString& SimpleFormatter::format( - const UnicodeString &value0, - const UnicodeString &value1, - UnicodeString &appendTo, UErrorCode &errorCode) const { - const UnicodeString *values[] = { &value0, &value1 }; - return formatAndAppend(values, 2, appendTo, NULL, 0, errorCode); -} - -UnicodeString& SimpleFormatter::format( - const UnicodeString &value0, - const UnicodeString &value1, - const UnicodeString &value2, - UnicodeString &appendTo, UErrorCode &errorCode) const { - const UnicodeString *values[] = { &value0, &value1, &value2 }; - return formatAndAppend(values, 3, appendTo, NULL, 0, errorCode); -} - -UnicodeString& SimpleFormatter::formatAndAppend( - const UnicodeString *const *values, int32_t valuesLength, - UnicodeString &appendTo, - int32_t *offsets, int32_t offsetsLength, UErrorCode &errorCode) const { - if (U_FAILURE(errorCode)) { - return appendTo; - } - if (isInvalidArray(values, valuesLength) || isInvalidArray(offsets, offsetsLength) || - valuesLength < getArgumentLimit()) { - errorCode = U_ILLEGAL_ARGUMENT_ERROR; - return appendTo; - } - return format(compiledPattern.getBuffer(), compiledPattern.length(), values, - appendTo, NULL, TRUE, - offsets, offsetsLength, errorCode); -} - -UnicodeString &SimpleFormatter::formatAndReplace( - const UnicodeString *const *values, int32_t valuesLength, - UnicodeString &result, - int32_t *offsets, int32_t offsetsLength, UErrorCode &errorCode) const { - if (U_FAILURE(errorCode)) { - return result; - } - if (isInvalidArray(values, valuesLength) || isInvalidArray(offsets, offsetsLength)) { - errorCode = U_ILLEGAL_ARGUMENT_ERROR; - return result; - } - const UChar *cp = compiledPattern.getBuffer(); - int32_t cpLength = compiledPattern.length(); - if (valuesLength < getArgumentLimit(cp, cpLength)) { - errorCode = U_ILLEGAL_ARGUMENT_ERROR; - return result; - } - - // If the pattern starts with an argument whose value is the same object - // as the result, then we keep the result contents and append to it. - // Otherwise we replace its contents. - int32_t firstArg = -1; - // If any non-initial argument value is the same object as the result, - // then we first copy its contents and use that instead while formatting. - UnicodeString resultCopy; - if (getArgumentLimit(cp, cpLength) > 0) { - for (int32_t i = 1; i < cpLength;) { - int32_t n = cp[i++]; - if (n < ARG_NUM_LIMIT) { - if (values[n] == &result) { - if (i == 2) { - firstArg = n; - } else if (resultCopy.isEmpty() && !result.isEmpty()) { - resultCopy = result; - } - } - } else { - i += n - ARG_NUM_LIMIT; - } - } - } - if (firstArg < 0) { - result.remove(); - } - return format(cp, cpLength, values, - result, &resultCopy, FALSE, - offsets, offsetsLength, errorCode); -} - -UnicodeString SimpleFormatter::getTextWithNoArguments( - const UChar *compiledPattern, int32_t compiledPatternLength) { - int32_t capacity = compiledPatternLength - 1 - - getArgumentLimit(compiledPattern, compiledPatternLength); - UnicodeString sb(capacity, 0, 0); // Java: StringBuilder - for (int32_t i = 1; i < compiledPatternLength;) { - int32_t segmentLength = compiledPattern[i++] - ARG_NUM_LIMIT; - if (segmentLength > 0) { - sb.append(compiledPattern + i, segmentLength); - i += segmentLength; - } - } - return sb; -} - -UnicodeString &SimpleFormatter::format( - const UChar *compiledPattern, int32_t compiledPatternLength, - const UnicodeString *const *values, - UnicodeString &result, const UnicodeString *resultCopy, UBool forbidResultAsValue, - int32_t *offsets, int32_t offsetsLength, - UErrorCode &errorCode) { - if (U_FAILURE(errorCode)) { - return result; - } - for (int32_t i = 0; i < offsetsLength; i++) { - offsets[i] = -1; - } - for (int32_t i = 1; i < compiledPatternLength;) { - int32_t n = compiledPattern[i++]; - if (n < ARG_NUM_LIMIT) { - const UnicodeString *value = values[n]; - if (value == NULL) { - errorCode = U_ILLEGAL_ARGUMENT_ERROR; - return result; - } - if (value == &result) { - if (forbidResultAsValue) { - errorCode = U_ILLEGAL_ARGUMENT_ERROR; - return result; - } - if (i == 2) { - // We are appending to result which is also the first value object. - if (n < offsetsLength) { - offsets[n] = 0; - } - } else { - if (n < offsetsLength) { - offsets[n] = result.length(); - } - result.append(*resultCopy); - } - } else { - if (n < offsetsLength) { - offsets[n] = result.length(); - } - result.append(*value); - } - } else { - int32_t length = n - ARG_NUM_LIMIT; - result.append(compiledPattern + i, length); - i += length; - } - } - return result; -} - -U_NAMESPACE_END |