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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "mozilla/ArrayUtils.h"
#include "mozilla/FloatingPoint.h"
#include "txXSLTNumber.h"
#include "nsGkAtoms.h"
#include "txCore.h"
#include <math.h>
#include "txExpr.h"
#include "txXSLTPatterns.h"
#include "txIXPathContext.h"
#include "txXPathTreeWalker.h"
#include <algorithm>
using mozilla::MakeUnique;
using mozilla::UniquePtr;
nsresult txXSLTNumber::createNumber(Expr* aValueExpr, txPattern* aCountPattern,
txPattern* aFromPattern, LevelType aLevel,
Expr* aGroupSize, Expr* aGroupSeparator,
Expr* aFormat, txIEvalContext* aContext,
nsAString& aResult) {
aResult.Truncate();
nsresult rv = NS_OK;
// Parse format
txList counters;
nsAutoString head, tail;
rv = getCounters(aGroupSize, aGroupSeparator, aFormat, aContext, counters,
head, tail);
NS_ENSURE_SUCCESS(rv, rv);
// Create list of values to format
txList values;
nsAutoString valueString;
rv = getValueList(aValueExpr, aCountPattern, aFromPattern, aLevel, aContext,
values, valueString);
NS_ENSURE_SUCCESS(rv, rv);
if (!valueString.IsEmpty()) {
aResult = valueString;
return NS_OK;
}
// Create resulting string
aResult = head;
bool first = true;
txListIterator valueIter(&values);
txListIterator counterIter(&counters);
valueIter.resetToEnd();
int32_t value;
txFormattedCounter* counter = 0;
while ((value = NS_PTR_TO_INT32(valueIter.previous()))) {
if (counterIter.hasNext()) {
counter = (txFormattedCounter*)counterIter.next();
}
if (!first) {
aResult.Append(counter->mSeparator);
}
counter->appendNumber(value, aResult);
first = false;
}
aResult.Append(tail);
txListIterator iter(&counters);
while (iter.hasNext()) {
delete (txFormattedCounter*)iter.next();
}
return NS_OK;
}
nsresult txXSLTNumber::getValueList(Expr* aValueExpr, txPattern* aCountPattern,
txPattern* aFromPattern, LevelType aLevel,
txIEvalContext* aContext, txList& aValues,
nsAString& aValueString) {
aValueString.Truncate();
nsresult rv = NS_OK;
// If the value attribute exists then use that
if (aValueExpr) {
RefPtr<txAExprResult> result;
rv = aValueExpr->evaluate(aContext, getter_AddRefs(result));
NS_ENSURE_SUCCESS(rv, rv);
double value = result->numberValue();
if (std::isinf(value) || std::isnan(value) || value < 0.5) {
txDouble::toString(value, aValueString);
return NS_OK;
}
aValues.add(NS_INT32_TO_PTR((int32_t)floor(value + 0.5)));
return NS_OK;
}
// Otherwise use count/from/level
txPattern* countPattern = aCountPattern;
UniquePtr<txPattern> newCountPattern;
const txXPathNode& currNode = aContext->getContextNode();
// Parse count- and from-attributes
if (!aCountPattern) {
txNodeTest* nodeTest;
uint16_t nodeType = txXPathNodeUtils::getNodeType(currNode);
switch (nodeType) {
case txXPathNodeType::ELEMENT_NODE: {
RefPtr<nsAtom> localName = txXPathNodeUtils::getLocalName(currNode);
int32_t namespaceID = txXPathNodeUtils::getNamespaceID(currNode);
nodeTest = new txNameTest(0, localName, namespaceID,
txXPathNodeType::ELEMENT_NODE);
break;
}
case txXPathNodeType::TEXT_NODE:
case txXPathNodeType::CDATA_SECTION_NODE: {
nodeTest = new txNodeTypeTest(txNodeTypeTest::TEXT_TYPE);
break;
}
case txXPathNodeType::PROCESSING_INSTRUCTION_NODE: {
txNodeTypeTest* typeTest;
typeTest = new txNodeTypeTest(txNodeTypeTest::PI_TYPE);
nsAutoString nodeName;
txXPathNodeUtils::getNodeName(currNode, nodeName);
typeTest->setNodeName(nodeName);
nodeTest = typeTest;
break;
}
case txXPathNodeType::COMMENT_NODE: {
nodeTest = new txNodeTypeTest(txNodeTypeTest::COMMENT_TYPE);
break;
}
case txXPathNodeType::DOCUMENT_NODE:
case txXPathNodeType::ATTRIBUTE_NODE:
default: {
// this won't match anything as we walk up the tree
// but it's what the spec says to do
nodeTest = new txNameTest(0, nsGkAtoms::_asterisk, 0, nodeType);
break;
}
}
MOZ_ASSERT(nodeTest);
newCountPattern = MakeUnique<txStepPattern>(nodeTest, false);
countPattern = newCountPattern.get();
}
// Generate list of values depending on the value of the level-attribute
// level = "single"
if (aLevel == eLevelSingle) {
txXPathTreeWalker walker(currNode);
do {
if (aFromPattern && !walker.isOnNode(currNode)) {
bool matched;
rv = aFromPattern->matches(walker.getCurrentPosition(), aContext,
matched);
NS_ENSURE_SUCCESS(rv, rv);
if (matched) {
break;
}
}
bool matched;
rv =
countPattern->matches(walker.getCurrentPosition(), aContext, matched);
NS_ENSURE_SUCCESS(rv, rv);
if (matched) {
int32_t count;
rv = getSiblingCount(walker, countPattern, aContext, &count);
NS_ENSURE_SUCCESS(rv, rv);
aValues.add(NS_INT32_TO_PTR(count));
break;
}
} while (walker.moveToParent());
// Spec says to only match ancestors that are decendants of the
// ancestor that matches the from-pattern, so keep going to make
// sure that there is an ancestor that does.
if (aFromPattern && aValues.getLength()) {
bool hasParent;
while ((hasParent = walker.moveToParent())) {
bool matched;
rv = aFromPattern->matches(walker.getCurrentPosition(), aContext,
matched);
NS_ENSURE_SUCCESS(rv, rv);
if (matched) {
break;
}
}
if (!hasParent) {
aValues.clear();
}
}
}
// level = "multiple"
else if (aLevel == eLevelMultiple) {
// find all ancestor-or-selfs that matches count until...
txXPathTreeWalker walker(currNode);
bool matchedFrom = false;
do {
if (aFromPattern && !walker.isOnNode(currNode)) {
rv = aFromPattern->matches(walker.getCurrentPosition(), aContext,
matchedFrom);
NS_ENSURE_SUCCESS(rv, rv);
if (matchedFrom) {
//... we find one that matches from
break;
}
}
bool matched;
rv =
countPattern->matches(walker.getCurrentPosition(), aContext, matched);
NS_ENSURE_SUCCESS(rv, rv);
if (matched) {
int32_t count;
rv = getSiblingCount(walker, countPattern, aContext, &count);
NS_ENSURE_SUCCESS(rv, rv);
aValues.add(NS_INT32_TO_PTR(count));
}
} while (walker.moveToParent());
// Spec says to only match ancestors that are decendants of the
// ancestor that matches the from-pattern, so if none did then
// we shouldn't search anything
if (aFromPattern && !matchedFrom) {
aValues.clear();
}
}
// level = "any"
else if (aLevel == eLevelAny) {
int32_t value = 0;
bool matchedFrom = false;
txXPathTreeWalker walker(currNode);
do {
if (aFromPattern && !walker.isOnNode(currNode)) {
rv = aFromPattern->matches(walker.getCurrentPosition(), aContext,
matchedFrom);
NS_ENSURE_SUCCESS(rv, rv);
if (matchedFrom) {
break;
}
}
bool matched;
rv =
countPattern->matches(walker.getCurrentPosition(), aContext, matched);
NS_ENSURE_SUCCESS(rv, rv);
if (matched) {
++value;
}
} while (getPrevInDocumentOrder(walker));
// Spec says to only count nodes that follows the first node that
// matches the from pattern. So so if none did then we shouldn't
// count any
if (aFromPattern && !matchedFrom) {
value = 0;
}
if (value) {
aValues.add(NS_INT32_TO_PTR(value));
}
}
return NS_OK;
}
nsresult txXSLTNumber::getCounters(Expr* aGroupSize, Expr* aGroupSeparator,
Expr* aFormat, txIEvalContext* aContext,
txList& aCounters, nsAString& aHead,
nsAString& aTail) {
aHead.Truncate();
aTail.Truncate();
nsresult rv = NS_OK;
nsAutoString groupSeparator;
int32_t groupSize = 0;
if (aGroupSize && aGroupSeparator) {
nsAutoString sizeStr;
rv = aGroupSize->evaluateToString(aContext, sizeStr);
NS_ENSURE_SUCCESS(rv, rv);
double size = txDouble::toDouble(sizeStr);
groupSize = (int32_t)size;
if ((double)groupSize != size) {
groupSize = 0;
}
rv = aGroupSeparator->evaluateToString(aContext, groupSeparator);
NS_ENSURE_SUCCESS(rv, rv);
}
nsAutoString format;
if (aFormat) {
rv = aFormat->evaluateToString(aContext, format);
NS_ENSURE_SUCCESS(rv, rv);
}
uint32_t formatLen = format.Length();
uint32_t formatPos = 0;
char16_t ch = 0;
// start with header
while (formatPos < formatLen &&
!isAlphaNumeric(ch = format.CharAt(formatPos))) {
aHead.Append(ch);
++formatPos;
}
// If there are no formatting tokens we need to create a default one.
if (formatPos == formatLen) {
txFormattedCounter* defaultCounter;
rv = txFormattedCounter::getCounterFor(u"1"_ns, groupSize, groupSeparator,
defaultCounter);
NS_ENSURE_SUCCESS(rv, rv);
defaultCounter->mSeparator.Assign('.');
aCounters.add(defaultCounter);
return NS_OK;
}
while (formatPos < formatLen) {
nsAutoString sepToken;
// parse separator token
if (!aCounters.getLength()) {
// Set the first counters separator to default value so that if
// there is only one formatting token and we're formatting a
// value-list longer then one we use the default separator. This
// won't be used when formatting the first value anyway.
sepToken.Assign('.');
} else {
while (formatPos < formatLen &&
!isAlphaNumeric(ch = format.CharAt(formatPos))) {
sepToken.Append(ch);
++formatPos;
}
}
// if we're at the end of the string then the previous token was the tail
if (formatPos == formatLen) {
aTail = sepToken;
return NS_OK;
}
// parse formatting token
nsAutoString numToken;
while (formatPos < formatLen &&
isAlphaNumeric(ch = format.CharAt(formatPos))) {
numToken.Append(ch);
++formatPos;
}
txFormattedCounter* counter = 0;
rv = txFormattedCounter::getCounterFor(numToken, groupSize, groupSeparator,
counter);
if (NS_FAILED(rv)) {
txListIterator iter(&aCounters);
while (iter.hasNext()) {
delete (txFormattedCounter*)iter.next();
}
aCounters.clear();
return rv;
}
// Add to list of counters
counter->mSeparator = sepToken;
aCounters.add(counter);
}
return NS_OK;
}
nsresult txXSLTNumber::getSiblingCount(txXPathTreeWalker& aWalker,
txPattern* aCountPattern,
txIMatchContext* aContext,
int32_t* aCount) {
int32_t value = 1;
while (aWalker.moveToPreviousSibling()) {
bool matched;
nsresult rv =
aCountPattern->matches(aWalker.getCurrentPosition(), aContext, matched);
NS_ENSURE_SUCCESS(rv, rv);
if (matched) {
++value;
}
}
*aCount = value;
return NS_OK;
}
bool txXSLTNumber::getPrevInDocumentOrder(txXPathTreeWalker& aWalker) {
if (aWalker.moveToPreviousSibling()) {
while (aWalker.moveToLastChild()) {
// do nothing
}
return true;
}
return aWalker.moveToParent();
}
struct CharRange {
char16_t lower; // inclusive
char16_t upper; // inclusive
bool operator<(const CharRange& other) const { return upper < other.lower; }
};
bool txXSLTNumber::isAlphaNumeric(char16_t ch) {
static const CharRange alphanumericRanges[] = {
// clang-format off
{ 0x0030, 0x0039 },
{ 0x0041, 0x005A },
{ 0x0061, 0x007A },
{ 0x00AA, 0x00AA },
{ 0x00B2, 0x00B3 },
{ 0x00B5, 0x00B5 },
{ 0x00B9, 0x00BA },
{ 0x00BC, 0x00BE },
{ 0x00C0, 0x00D6 },
{ 0x00D8, 0x00F6 },
{ 0x00F8, 0x021F },
{ 0x0222, 0x0233 },
{ 0x0250, 0x02AD },
{ 0x02B0, 0x02B8 },
{ 0x02BB, 0x02C1 },
{ 0x02D0, 0x02D1 },
{ 0x02E0, 0x02E4 },
{ 0x02EE, 0x02EE },
{ 0x037A, 0x037A },
{ 0x0386, 0x0386 },
{ 0x0388, 0x038A },
{ 0x038C, 0x038C },
{ 0x038E, 0x03A1 },
{ 0x03A3, 0x03CE },
{ 0x03D0, 0x03D7 },
{ 0x03DA, 0x03F3 },
{ 0x0400, 0x0481 },
{ 0x048C, 0x04C4 },
{ 0x04C7, 0x04C8 },
{ 0x04CB, 0x04CC },
{ 0x04D0, 0x04F5 },
{ 0x04F8, 0x04F9 },
{ 0x0531, 0x0556 },
{ 0x0559, 0x0559 },
{ 0x0561, 0x0587 },
{ 0x05D0, 0x05EA },
{ 0x05F0, 0x05F2 },
{ 0x0621, 0x063A },
{ 0x0640, 0x064A },
{ 0x0660, 0x0669 },
{ 0x0671, 0x06D3 },
{ 0x06D5, 0x06D5 },
{ 0x06E5, 0x06E6 },
{ 0x06F0, 0x06FC },
{ 0x0710, 0x0710 },
{ 0x0712, 0x072C },
{ 0x0780, 0x07A5 },
{ 0x0905, 0x0939 },
{ 0x093D, 0x093D },
{ 0x0950, 0x0950 },
{ 0x0958, 0x0961 },
{ 0x0966, 0x096F },
{ 0x0985, 0x098C },
{ 0x098F, 0x0990 },
{ 0x0993, 0x09A8 },
{ 0x09AA, 0x09B0 },
{ 0x09B2, 0x09B2 },
{ 0x09B6, 0x09B9 },
{ 0x09DC, 0x09DD },
{ 0x09DF, 0x09E1 },
{ 0x09E6, 0x09F1 },
{ 0x09F4, 0x09F9 },
{ 0x0A05, 0x0A0A },
{ 0x0A0F, 0x0A10 },
{ 0x0A13, 0x0A28 },
{ 0x0A2A, 0x0A30 },
{ 0x0A32, 0x0A33 },
{ 0x0A35, 0x0A36 },
{ 0x0A38, 0x0A39 },
{ 0x0A59, 0x0A5C },
{ 0x0A5E, 0x0A5E },
{ 0x0A66, 0x0A6F },
{ 0x0A72, 0x0A74 },
{ 0x0A85, 0x0A8B },
{ 0x0A8D, 0x0A8D },
{ 0x0A8F, 0x0A91 },
{ 0x0A93, 0x0AA8 },
{ 0x0AAA, 0x0AB0 },
{ 0x0AB2, 0x0AB3 },
{ 0x0AB5, 0x0AB9 },
{ 0x0ABD, 0x0ABD },
{ 0x0AD0, 0x0AD0 },
{ 0x0AE0, 0x0AE0 },
{ 0x0AE6, 0x0AEF },
{ 0x0B05, 0x0B0C },
{ 0x0B0F, 0x0B10 },
{ 0x0B13, 0x0B28 },
{ 0x0B2A, 0x0B30 },
{ 0x0B32, 0x0B33 },
{ 0x0B36, 0x0B39 },
{ 0x0B3D, 0x0B3D },
{ 0x0B5C, 0x0B5D },
{ 0x0B5F, 0x0B61 },
{ 0x0B66, 0x0B6F },
{ 0x0B85, 0x0B8A },
{ 0x0B8E, 0x0B90 },
{ 0x0B92, 0x0B95 },
{ 0x0B99, 0x0B9A },
{ 0x0B9C, 0x0B9C },
{ 0x0B9E, 0x0B9F },
{ 0x0BA3, 0x0BA4 },
{ 0x0BA8, 0x0BAA },
{ 0x0BAE, 0x0BB5 },
{ 0x0BB7, 0x0BB9 },
{ 0x0BE7, 0x0BF2 },
{ 0x0C05, 0x0C0C },
{ 0x0C0E, 0x0C10 },
{ 0x0C12, 0x0C28 },
{ 0x0C2A, 0x0C33 },
{ 0x0C35, 0x0C39 },
{ 0x0C60, 0x0C61 },
{ 0x0C66, 0x0C6F },
{ 0x0C85, 0x0C8C },
{ 0x0C8E, 0x0C90 },
{ 0x0C92, 0x0CA8 },
{ 0x0CAA, 0x0CB3 },
{ 0x0CB5, 0x0CB9 },
{ 0x0CDE, 0x0CDE },
{ 0x0CE0, 0x0CE1 },
{ 0x0CE6, 0x0CEF },
{ 0x0D05, 0x0D0C },
{ 0x0D0E, 0x0D10 },
{ 0x0D12, 0x0D28 },
{ 0x0D2A, 0x0D39 },
{ 0x0D60, 0x0D61 },
{ 0x0D66, 0x0D6F },
{ 0x0D85, 0x0D96 },
{ 0x0D9A, 0x0DB1 },
{ 0x0DB3, 0x0DBB },
{ 0x0DBD, 0x0DBD },
{ 0x0DC0, 0x0DC6 },
{ 0x0E01, 0x0E30 },
{ 0x0E32, 0x0E33 },
{ 0x0E40, 0x0E46 },
{ 0x0E50, 0x0E59 },
{ 0x0E81, 0x0E82 },
{ 0x0E84, 0x0E84 },
{ 0x0E87, 0x0E88 },
{ 0x0E8A, 0x0E8A },
{ 0x0E8D, 0x0E8D },
{ 0x0E94, 0x0E97 },
{ 0x0E99, 0x0E9F },
{ 0x0EA1, 0x0EA3 },
{ 0x0EA5, 0x0EA5 },
{ 0x0EA7, 0x0EA7 },
{ 0x0EAA, 0x0EAB },
{ 0x0EAD, 0x0EB0 },
{ 0x0EB2, 0x0EB3 },
{ 0x0EBD, 0x0EBD },
{ 0x0EC0, 0x0EC4 },
{ 0x0EC6, 0x0EC6 },
{ 0x0ED0, 0x0ED9 },
{ 0x0EDC, 0x0EDD },
{ 0x0F00, 0x0F00 },
{ 0x0F20, 0x0F33 },
{ 0x0F40, 0x0F47 },
{ 0x0F49, 0x0F6A },
{ 0x0F88, 0x0F8B },
{ 0x1000, 0x1021 },
{ 0x1023, 0x1027 },
{ 0x1029, 0x102A },
{ 0x1040, 0x1049 },
{ 0x1050, 0x1055 },
{ 0x10A0, 0x10C5 },
{ 0x10D0, 0x10F6 },
{ 0x1100, 0x1159 },
{ 0x115F, 0x11A2 },
{ 0x11A8, 0x11F9 },
{ 0x1200, 0x1206 },
{ 0x1208, 0x1246 },
{ 0x1248, 0x1248 },
{ 0x124A, 0x124D },
{ 0x1250, 0x1256 },
{ 0x1258, 0x1258 },
{ 0x125A, 0x125D },
{ 0x1260, 0x1286 },
{ 0x1288, 0x1288 },
{ 0x128A, 0x128D },
{ 0x1290, 0x12AE },
{ 0x12B0, 0x12B0 },
{ 0x12B2, 0x12B5 },
{ 0x12B8, 0x12BE },
{ 0x12C0, 0x12C0 },
{ 0x12C2, 0x12C5 },
{ 0x12C8, 0x12CE },
{ 0x12D0, 0x12D6 },
{ 0x12D8, 0x12EE },
{ 0x12F0, 0x130E },
{ 0x1310, 0x1310 },
{ 0x1312, 0x1315 },
{ 0x1318, 0x131E },
{ 0x1320, 0x1346 },
{ 0x1348, 0x135A },
{ 0x1369, 0x137C },
{ 0x13A0, 0x13F4 },
{ 0x1401, 0x166C },
{ 0x166F, 0x1676 },
{ 0x1681, 0x169A },
{ 0x16A0, 0x16EA },
{ 0x16EE, 0x16F0 },
{ 0x1780, 0x17B3 },
{ 0x17E0, 0x17E9 },
{ 0x1810, 0x1819 },
{ 0x1820, 0x1877 },
{ 0x1880, 0x18A8 },
{ 0x1E00, 0x1E9B },
{ 0x1EA0, 0x1EF9 },
{ 0x1F00, 0x1F15 },
{ 0x1F18, 0x1F1D },
{ 0x1F20, 0x1F45 },
{ 0x1F48, 0x1F4D },
{ 0x1F50, 0x1F57 },
{ 0x1F59, 0x1F59 },
{ 0x1F5B, 0x1F5B },
{ 0x1F5D, 0x1F5D },
{ 0x1F5F, 0x1F7D },
{ 0x1F80, 0x1FB4 },
{ 0x1FB6, 0x1FBC },
{ 0x1FBE, 0x1FBE },
{ 0x1FC2, 0x1FC4 },
{ 0x1FC6, 0x1FCC },
{ 0x1FD0, 0x1FD3 },
{ 0x1FD6, 0x1FDB },
{ 0x1FE0, 0x1FEC },
{ 0x1FF2, 0x1FF4 },
{ 0x1FF6, 0x1FFC },
{ 0x2070, 0x2070 },
{ 0x2074, 0x2079 },
{ 0x207F, 0x2089 },
{ 0x2102, 0x2102 },
{ 0x2107, 0x2107 },
{ 0x210A, 0x2113 },
{ 0x2115, 0x2115 },
{ 0x2119, 0x211D },
{ 0x2124, 0x2124 },
{ 0x2126, 0x2126 },
{ 0x2128, 0x2128 },
{ 0x212A, 0x212D },
{ 0x212F, 0x2131 },
{ 0x2133, 0x2139 },
{ 0x2153, 0x2183 },
{ 0x2460, 0x249B },
{ 0x24EA, 0x24EA },
{ 0x2776, 0x2793 },
{ 0x3005, 0x3007 },
{ 0x3021, 0x3029 },
{ 0x3031, 0x3035 },
{ 0x3038, 0x303A },
{ 0x3041, 0x3094 },
{ 0x309D, 0x309E },
{ 0x30A1, 0x30FA },
{ 0x30FC, 0x30FE },
{ 0x3105, 0x312C },
{ 0x3131, 0x318E },
{ 0x3192, 0x3195 },
{ 0x31A0, 0x31B7 },
{ 0x3220, 0x3229 },
{ 0x3280, 0x3289 },
{ 0x3400, 0x3400 },
{ 0x4DB5, 0x4DB5 },
{ 0x4E00, 0x4E00 },
{ 0x9FA5, 0x9FA5 },
{ 0xA000, 0xA48C },
{ 0xAC00, 0xAC00 },
{ 0xD7A3, 0xD7A3 },
{ 0xF900, 0xFA2D },
{ 0xFB00, 0xFB06 },
{ 0xFB13, 0xFB17 },
{ 0xFB1D, 0xFB1D },
{ 0xFB1F, 0xFB28 },
{ 0xFB2A, 0xFB36 },
{ 0xFB38, 0xFB3C },
{ 0xFB3E, 0xFB3E },
{ 0xFB40, 0xFB41 },
{ 0xFB43, 0xFB44 },
{ 0xFB46, 0xFBB1 },
{ 0xFBD3, 0xFD3D },
{ 0xFD50, 0xFD8F },
{ 0xFD92, 0xFDC7 },
{ 0xFDF0, 0xFDFB },
{ 0xFE70, 0xFE72 },
{ 0xFE74, 0xFE74 },
{ 0xFE76, 0xFEFC },
{ 0xFF10, 0xFF19 },
{ 0xFF21, 0xFF3A },
{ 0xFF41, 0xFF5A },
{ 0xFF66, 0xFFBE },
{ 0xFFC2, 0xFFC7 },
{ 0xFFCA, 0xFFCF },
{ 0xFFD2, 0xFFD7 }
// clang-format on
};
CharRange search = {ch, ch};
const CharRange* end = mozilla::ArrayEnd(alphanumericRanges);
const CharRange* element =
std::lower_bound(&alphanumericRanges[0], end, search);
if (element == end) {
return false;
}
return element->lower <= ch && ch <= element->upper;
}