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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /intl/icu/source/i18n/number_padding.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'intl/icu/source/i18n/number_padding.cpp')
-rw-r--r-- | intl/icu/source/i18n/number_padding.cpp | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/intl/icu/source/i18n/number_padding.cpp b/intl/icu/source/i18n/number_padding.cpp new file mode 100644 index 0000000000..c320c3ffb6 --- /dev/null +++ b/intl/icu/source/i18n/number_padding.cpp @@ -0,0 +1,96 @@ +// © 2017 and later: Unicode, Inc. and others. +// License & terms of use: http://www.unicode.org/copyright.html + +#include "unicode/utypes.h" + +#if !UCONFIG_NO_FORMATTING + +#include "unicode/numberformatter.h" +#include "number_types.h" +#include "formatted_string_builder.h" +#include "number_decimfmtprops.h" + +using namespace icu; +using namespace icu::number; +using namespace icu::number::impl; + +namespace { + +int32_t +addPaddingHelper(UChar32 paddingCp, int32_t requiredPadding, FormattedStringBuilder &string, int32_t index, + UErrorCode &status) { + for (int32_t i = 0; i < requiredPadding; i++) { + // TODO: If appending to the end, this will cause actual insertion operations. Improve. + string.insertCodePoint(index, paddingCp, kUndefinedField, status); + } + return U16_LENGTH(paddingCp) * requiredPadding; +} + +} + +Padder::Padder(UChar32 cp, int32_t width, UNumberFormatPadPosition position) : fWidth(width) { + // TODO(13034): Consider making this a string instead of code point. + fUnion.padding.fCp = cp; + fUnion.padding.fPosition = position; +} + +Padder::Padder(int32_t width) : fWidth(width) {} + +Padder Padder::none() { + return {-1}; +} + +Padder Padder::codePoints(UChar32 cp, int32_t targetWidth, UNumberFormatPadPosition position) { + // TODO: Validate the code point? + if (targetWidth >= 0) { + return {cp, targetWidth, position}; + } else { + return {U_NUMBER_ARG_OUTOFBOUNDS_ERROR}; + } +} + +Padder Padder::forProperties(const DecimalFormatProperties& properties) { + UChar32 padCp; + if (properties.padString.length() > 0) { + padCp = properties.padString.char32At(0); + } else { + padCp = kFallbackPaddingString[0]; + } + return {padCp, properties.formatWidth, properties.padPosition.getOrDefault(UNUM_PAD_BEFORE_PREFIX)}; +} + +int32_t Padder::padAndApply(const Modifier &mod1, const Modifier &mod2, + FormattedStringBuilder &string, int32_t leftIndex, int32_t rightIndex, + UErrorCode &status) const { + int32_t modLength = mod1.getCodePointCount() + mod2.getCodePointCount(); + int32_t requiredPadding = fWidth - modLength - string.codePointCount(); + U_ASSERT(leftIndex == 0 && + rightIndex == string.length()); // fix the previous line to remove this assertion + + int length = 0; + if (requiredPadding <= 0) { + // Padding is not required. + length += mod1.apply(string, leftIndex, rightIndex, status); + length += mod2.apply(string, leftIndex, rightIndex + length, status); + return length; + } + + PadPosition position = fUnion.padding.fPosition; + UChar32 paddingCp = fUnion.padding.fCp; + if (position == UNUM_PAD_AFTER_PREFIX) { + length += addPaddingHelper(paddingCp, requiredPadding, string, leftIndex, status); + } else if (position == UNUM_PAD_BEFORE_SUFFIX) { + length += addPaddingHelper(paddingCp, requiredPadding, string, rightIndex + length, status); + } + length += mod1.apply(string, leftIndex, rightIndex + length, status); + length += mod2.apply(string, leftIndex, rightIndex + length, status); + if (position == UNUM_PAD_BEFORE_PREFIX) { + length += addPaddingHelper(paddingCp, requiredPadding, string, leftIndex, status); + } else if (position == UNUM_PAD_AFTER_SUFFIX) { + length += addPaddingHelper(paddingCp, requiredPadding, string, rightIndex + length, status); + } + + return length; +} + +#endif /* #if !UCONFIG_NO_FORMATTING */ |