1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/intl/icu/source/i18n/selfmt.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,195 @@
1.4 +/********************************************************************
1.5 + * COPYRIGHT:
1.6 + * Copyright (c) 1997-2012, International Business Machines Corporation and
1.7 + * others. All Rights Reserved.
1.8 + * Copyright (C) 2010 , Yahoo! Inc.
1.9 + ********************************************************************
1.10 + *
1.11 + * File SELFMT.CPP
1.12 + *
1.13 + * Modification History:
1.14 + *
1.15 + * Date Name Description
1.16 + * 11/11/09 kirtig Finished first cut of implementation.
1.17 + * 11/16/09 kirtig Improved version
1.18 + ********************************************************************/
1.19 +
1.20 +#include "utypeinfo.h" // for 'typeid' to work
1.21 +
1.22 +#include "unicode/messagepattern.h"
1.23 +#include "unicode/rbnf.h"
1.24 +#include "unicode/selfmt.h"
1.25 +#include "unicode/uchar.h"
1.26 +#include "unicode/ucnv_err.h"
1.27 +#include "unicode/umsg.h"
1.28 +#include "unicode/ustring.h"
1.29 +#include "unicode/utypes.h"
1.30 +#include "cmemory.h"
1.31 +#include "messageimpl.h"
1.32 +#include "patternprops.h"
1.33 +#include "selfmtimpl.h"
1.34 +#include "uassert.h"
1.35 +#include "ustrfmt.h"
1.36 +#include "util.h"
1.37 +#include "uvector.h"
1.38 +
1.39 +#if !UCONFIG_NO_FORMATTING
1.40 +
1.41 +U_NAMESPACE_BEGIN
1.42 +
1.43 +UOBJECT_DEFINE_RTTI_IMPLEMENTATION(SelectFormat)
1.44 +
1.45 +static const UChar SELECT_KEYWORD_OTHER[] = {LOW_O, LOW_T, LOW_H, LOW_E, LOW_R, 0};
1.46 +
1.47 +SelectFormat::SelectFormat(const UnicodeString& pat,
1.48 + UErrorCode& status) : msgPattern(status) {
1.49 + applyPattern(pat, status);
1.50 +}
1.51 +
1.52 +SelectFormat::SelectFormat(const SelectFormat& other) : Format(other),
1.53 + msgPattern(other.msgPattern) {
1.54 +}
1.55 +
1.56 +SelectFormat::~SelectFormat() {
1.57 +}
1.58 +
1.59 +void
1.60 +SelectFormat::applyPattern(const UnicodeString& newPattern, UErrorCode& status) {
1.61 + if (U_FAILURE(status)) {
1.62 + return;
1.63 + }
1.64 +
1.65 + msgPattern.parseSelectStyle(newPattern, NULL, status);
1.66 + if (U_FAILURE(status)) {
1.67 + msgPattern.clear();
1.68 + }
1.69 +}
1.70 +
1.71 +UnicodeString&
1.72 +SelectFormat::format(const Formattable& obj,
1.73 + UnicodeString& appendTo,
1.74 + FieldPosition& pos,
1.75 + UErrorCode& status) const
1.76 +{
1.77 + if (U_FAILURE(status)) {
1.78 + return appendTo;
1.79 + }
1.80 + if (obj.getType() == Formattable::kString) {
1.81 + return format(obj.getString(status), appendTo, pos, status);
1.82 + } else {
1.83 + status = U_ILLEGAL_ARGUMENT_ERROR;
1.84 + return appendTo;
1.85 + }
1.86 +}
1.87 +
1.88 +UnicodeString&
1.89 +SelectFormat::format(const UnicodeString& keyword,
1.90 + UnicodeString& appendTo,
1.91 + FieldPosition& /*pos */,
1.92 + UErrorCode& status) const {
1.93 + if (U_FAILURE(status)) {
1.94 + return appendTo;
1.95 + }
1.96 + // Check for the validity of the keyword
1.97 + if (!PatternProps::isIdentifier(keyword.getBuffer(), keyword.length())) {
1.98 + status = U_ILLEGAL_ARGUMENT_ERROR; // Invalid formatting argument.
1.99 + }
1.100 + if (msgPattern.countParts() == 0) {
1.101 + status = U_INVALID_STATE_ERROR;
1.102 + return appendTo;
1.103 + }
1.104 + int32_t msgStart = findSubMessage(msgPattern, 0, keyword, status);
1.105 + if (!MessageImpl::jdkAposMode(msgPattern)) {
1.106 + int32_t patternStart = msgPattern.getPart(msgStart).getLimit();
1.107 + int32_t msgLimit = msgPattern.getLimitPartIndex(msgStart);
1.108 + appendTo.append(msgPattern.getPatternString(),
1.109 + patternStart,
1.110 + msgPattern.getPatternIndex(msgLimit) - patternStart);
1.111 + return appendTo;
1.112 + }
1.113 + // JDK compatibility mode: Remove SKIP_SYNTAX.
1.114 + return MessageImpl::appendSubMessageWithoutSkipSyntax(msgPattern, msgStart, appendTo);
1.115 +}
1.116 +
1.117 +UnicodeString&
1.118 +SelectFormat::toPattern(UnicodeString& appendTo) {
1.119 + if (0 == msgPattern.countParts()) {
1.120 + appendTo.setToBogus();
1.121 + } else {
1.122 + appendTo.append(msgPattern.getPatternString());
1.123 + }
1.124 + return appendTo;
1.125 +}
1.126 +
1.127 +
1.128 +int32_t SelectFormat::findSubMessage(const MessagePattern& pattern, int32_t partIndex,
1.129 + const UnicodeString& keyword, UErrorCode& ec) {
1.130 + if (U_FAILURE(ec)) {
1.131 + return 0;
1.132 + }
1.133 + UnicodeString other(FALSE, SELECT_KEYWORD_OTHER, 5);
1.134 + int32_t count = pattern.countParts();
1.135 + int32_t msgStart=0;
1.136 + // Iterate over (ARG_SELECTOR, message) pairs until ARG_LIMIT or end of select-only pattern.
1.137 + do {
1.138 + const MessagePattern::Part& part=pattern.getPart(partIndex++);
1.139 + const UMessagePatternPartType type=part.getType();
1.140 + if(type==UMSGPAT_PART_TYPE_ARG_LIMIT) {
1.141 + break;
1.142 + }
1.143 + // part is an ARG_SELECTOR followed by a message
1.144 + if(pattern.partSubstringMatches(part, keyword)) {
1.145 + // keyword matches
1.146 + return partIndex;
1.147 + } else if(msgStart==0 && pattern.partSubstringMatches(part, other)) {
1.148 + msgStart=partIndex;
1.149 + }
1.150 + partIndex=pattern.getLimitPartIndex(partIndex);
1.151 + } while(++partIndex<count);
1.152 + return msgStart;
1.153 +}
1.154 +
1.155 +Format* SelectFormat::clone() const
1.156 +{
1.157 + return new SelectFormat(*this);
1.158 +}
1.159 +
1.160 +SelectFormat&
1.161 +SelectFormat::operator=(const SelectFormat& other) {
1.162 + if (this != &other) {
1.163 + msgPattern = other.msgPattern;
1.164 + }
1.165 + return *this;
1.166 +}
1.167 +
1.168 +UBool
1.169 +SelectFormat::operator==(const Format& other) const {
1.170 + if (this == &other) {
1.171 + return TRUE;
1.172 + }
1.173 + if (!Format::operator==(other)) {
1.174 + return FALSE;
1.175 + }
1.176 + const SelectFormat& o = (const SelectFormat&)other;
1.177 + return msgPattern == o.msgPattern;
1.178 +}
1.179 +
1.180 +UBool
1.181 +SelectFormat::operator!=(const Format& other) const {
1.182 + return !operator==(other);
1.183 +}
1.184 +
1.185 +void
1.186 +SelectFormat::parseObject(const UnicodeString& /*source*/,
1.187 + Formattable& /*result*/,
1.188 + ParsePosition& pos) const
1.189 +{
1.190 + // Parsing not supported.
1.191 + pos.setErrorIndex(pos.getIndex());
1.192 +}
1.193 +
1.194 +U_NAMESPACE_END
1.195 +
1.196 +#endif /* #if !UCONFIG_NO_FORMATTING */
1.197 +
1.198 +//eof
