gecko-dev/parser/html/nsHtml5Portability.cpp

158 lines
3.8 KiB
C++

/* 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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsIAtom.h"
#include "nsString.h"
#include "jArray.h"
#include "nsHtml5Portability.h"
#include "nsHtml5TreeBuilder.h"
nsIAtom*
nsHtml5Portability::newLocalNameFromBuffer(char16_t* buf, int32_t offset, int32_t length, nsHtml5AtomTable* interner)
{
NS_ASSERTION(!offset, "The offset should always be zero here.");
NS_ASSERTION(interner, "Didn't get an atom service.");
return interner->GetAtom(nsDependentSubstring(buf, buf + length));
}
nsString*
nsHtml5Portability::newStringFromBuffer(char16_t* buf, int32_t offset, int32_t length, nsHtml5TreeBuilder* treeBuilder)
{
nsString* str = new nsString();
bool succeeded = str->Append(buf + offset, length, mozilla::fallible);
if (!succeeded) {
str->Assign(char16_t(0xFFFD));
treeBuilder->MarkAsBroken(NS_ERROR_OUT_OF_MEMORY);
}
return str;
}
nsString*
nsHtml5Portability::newEmptyString()
{
return new nsString();
}
nsString*
nsHtml5Portability::newStringFromLiteral(const char* literal)
{
nsString* str = new nsString();
str->AssignASCII(literal);
return str;
}
nsString*
nsHtml5Portability::newStringFromString(nsString* string) {
nsString* newStr = new nsString();
newStr->Assign(*string);
return newStr;
}
jArray<char16_t,int32_t>
nsHtml5Portability::newCharArrayFromLocal(nsIAtom* local)
{
nsAutoString temp;
local->ToString(temp);
int32_t len = temp.Length();
jArray<char16_t,int32_t> arr = jArray<char16_t,int32_t>::newJArray(len);
memcpy(arr, temp.BeginReading(), len * sizeof(char16_t));
return arr;
}
jArray<char16_t,int32_t>
nsHtml5Portability::newCharArrayFromString(nsString* string)
{
int32_t len = string->Length();
jArray<char16_t,int32_t> arr = jArray<char16_t,int32_t>::newJArray(len);
memcpy(arr, string->BeginReading(), len * sizeof(char16_t));
return arr;
}
nsIAtom*
nsHtml5Portability::newLocalFromLocal(nsIAtom* local, nsHtml5AtomTable* interner)
{
NS_PRECONDITION(local, "Atom was null.");
NS_PRECONDITION(interner, "Atom table was null");
if (!local->IsStaticAtom()) {
nsAutoString str;
local->ToString(str);
local = interner->GetAtom(str);
}
return local;
}
void
nsHtml5Portability::releaseString(nsString* str)
{
delete str;
}
bool
nsHtml5Portability::localEqualsBuffer(nsIAtom* local, char16_t* buf, int32_t offset, int32_t length)
{
return local->Equals(nsDependentSubstring(buf + offset, buf + offset + length));
}
bool
nsHtml5Portability::lowerCaseLiteralIsPrefixOfIgnoreAsciiCaseString(const char* lowerCaseLiteral, nsString* string)
{
if (!string) {
return false;
}
const char* litPtr = lowerCaseLiteral;
const char16_t* strPtr = string->BeginReading();
const char16_t* end = string->EndReading();
char16_t litChar;
while ((litChar = *litPtr)) {
NS_ASSERTION(!(litChar >= 'A' && litChar <= 'Z'), "Literal isn't in lower case.");
if (strPtr == end) {
return false;
}
char16_t strChar = *strPtr;
if (strChar >= 'A' && strChar <= 'Z') {
strChar += 0x20;
}
if (litChar != strChar) {
return false;
}
++litPtr;
++strPtr;
}
return true;
}
bool
nsHtml5Portability::lowerCaseLiteralEqualsIgnoreAsciiCaseString(const char* lowerCaseLiteral, nsString* string)
{
if (!string) {
return false;
}
return string->LowerCaseEqualsASCII(lowerCaseLiteral);
}
bool
nsHtml5Portability::literalEqualsString(const char* literal, nsString* string)
{
if (!string) {
return false;
}
return string->EqualsASCII(literal);
}
bool
nsHtml5Portability::stringEqualsString(nsString* one, nsString* other)
{
return one->Equals(*other);
}
void
nsHtml5Portability::initializeStatics()
{
}
void
nsHtml5Portability::releaseStatics()
{
}