mirror of
https://github.com/open-source-parsers/jsoncpp.git
synced 2024-12-26 18:51:04 +08:00
fix StaticString test
* support zeroes in string_ * support zeroes in writer; provide getString(char**, unsigned*) * valueToQuotedStringN(), isCC0(), etc * allow zeroes for cpptl ConstString * allocated => non-static
This commit is contained in:
Christopher Dunn
parent
a53283568f
commit
c28610fb5d
@ -99,22 +99,21 @@ private:
|
||||
* The type of the held value is represented by a #ValueType and
|
||||
* can be obtained using type().
|
||||
*
|
||||
* values of an #objectValue or #arrayValue can be accessed using operator[]()
|
||||
*methods.
|
||||
* Non const methods will automatically create the a #nullValue element
|
||||
* Values of an #objectValue or #arrayValue can be accessed using operator[]()
|
||||
* methods.
|
||||
* Non-const methods will automatically create the a #nullValue element
|
||||
* if it does not exist.
|
||||
* The sequence of an #arrayValue will be automatically resize and initialized
|
||||
* The sequence of an #arrayValue will be automatically resized and initialized
|
||||
* with #nullValue. resize() can be used to enlarge or truncate an #arrayValue.
|
||||
*
|
||||
* The get() methods can be used to obtanis default value in the case the
|
||||
*required element
|
||||
* does not exist.
|
||||
* The get() methods can be used to obtain default value in the case the
|
||||
* required element does not exist.
|
||||
*
|
||||
* It is possible to iterate over the list of a #objectValue values using
|
||||
* the getMemberNames() method.
|
||||
*
|
||||
* \note Value string-length fit in size_t, but keys must fit in unsigned.
|
||||
* (The reason is an implementation detail.) The readers will raise an
|
||||
* \note #Value string-length fit in size_t, but keys must be < 2^30.
|
||||
* (The reason is an implementation detail.) A #CharReader will raise an
|
||||
* exception if a bound is exceeded to avoid security holes in your app,
|
||||
* but the Value API does *not* check bounds. That is the responsibility
|
||||
* of the caller.
|
||||
@ -170,24 +169,27 @@ private:
|
||||
duplicateOnCopy
|
||||
};
|
||||
CZString(ArrayIndex index);
|
||||
CZString(char const* cstr, unsigned length, DuplicationPolicy allocate);
|
||||
CZString(const CZString& other);
|
||||
CZString(char const* str, unsigned length, DuplicationPolicy allocate);
|
||||
CZString(CZString const& other);
|
||||
~CZString();
|
||||
CZString& operator=(CZString other);
|
||||
bool operator<(const CZString& other) const;
|
||||
bool operator==(const CZString& other) const;
|
||||
bool operator<(CZString const& other) const;
|
||||
bool operator==(CZString const& other) const;
|
||||
ArrayIndex index() const;
|
||||
const char* c_str() const;
|
||||
//const char* c_str() const; ///< \deprecated
|
||||
char const* data() const;
|
||||
unsigned length() const;
|
||||
bool isStaticString() const;
|
||||
|
||||
private:
|
||||
void swap(CZString& other);
|
||||
|
||||
struct StringStorage {
|
||||
DuplicationPolicy policy_: 2;
|
||||
unsigned length_: 30; // 1GB max
|
||||
};
|
||||
|
||||
const char* cstr_;
|
||||
char const* cstr_; // actually, a prefixed string, unless policy is noDup
|
||||
union {
|
||||
ArrayIndex index_;
|
||||
StringStorage storage_;
|
||||
@ -233,9 +235,14 @@ Json::Value obj_value(Json::objectValue); // {}
|
||||
* Like other value string constructor but do not duplicate the string for
|
||||
* internal storage. The given string must remain alive after the call to this
|
||||
* constructor.
|
||||
* \note This works only for null-terminated strings. (We cannot change the
|
||||
* size of this class, so we have nowhere to store the length,
|
||||
* which might be computed later for various operations.)
|
||||
*
|
||||
* Example of usage:
|
||||
* \code
|
||||
* Json::Value aValue( StaticString("some text") );
|
||||
* static StaticString foo("some text");
|
||||
* Json::Value aValue(foo);
|
||||
* \endcode
|
||||
*/
|
||||
Value(const StaticString& value);
|
||||
@ -268,6 +275,11 @@ Json::Value obj_value(Json::objectValue); // {}
|
||||
|
||||
const char* asCString() const; ///! Embedded zeroes could cause you trouble!
|
||||
std::string asString() const; ///! Embedded zeroes are possible.
|
||||
/** Get raw char* of string-value.
|
||||
* \return false if !string. (Seg-fault if str or end are NULL.)
|
||||
*/
|
||||
bool getString(
|
||||
char const** str, char const** end) const;
|
||||
#ifdef JSON_USE_CPPTL
|
||||
CppTL::ConstString asConstString() const;
|
||||
#endif
|
||||
@ -374,8 +386,6 @@ Json::Value obj_value(Json::objectValue); // {}
|
||||
/** \brief Access an object value by name, create a null member if it does not
|
||||
exist.
|
||||
|
||||
* \param key may contain embedded nulls.
|
||||
*
|
||||
* If the object has no entry for that name, then the member name used to store
|
||||
* the new entry is not duplicated.
|
||||
* Example of use:
|
||||
@ -409,6 +419,10 @@ Json::Value obj_value(Json::objectValue); // {}
|
||||
/// and operator[]const
|
||||
/// \note As stated elsewhere, behavior is undefined if (end-key) >= 2^30
|
||||
Value const* find(char const* key, char const* end) const;
|
||||
/// Most general and efficient version of object-mutators.
|
||||
/// \note As stated elsewhere, behavior is undefined if (end-key) >= 2^30
|
||||
/// \return non-zero, but JSON_ASSERT if this is neither object nor nullValue.
|
||||
Value const* demand(char const* key, char const* end);
|
||||
/// \brief Remove and return the named member.
|
||||
///
|
||||
/// Do nothing if it did not exist.
|
||||
@ -442,6 +456,7 @@ Json::Value obj_value(Json::objectValue); // {}
|
||||
bool removeIndex(ArrayIndex i, Value* removed);
|
||||
|
||||
/// Return true if the object has a member named key.
|
||||
/// \note 'key' must be null-terminated.
|
||||
bool isMember(const char* key) const;
|
||||
/// Return true if the object has a member named key.
|
||||
/// \param key may contain embedded nulls.
|
||||
@ -493,7 +508,8 @@ Json::Value obj_value(Json::objectValue); // {}
|
||||
private:
|
||||
void initBasic(ValueType type, bool allocated = false);
|
||||
|
||||
Value& resolveReference(const char* key, bool isStatic);
|
||||
Value& resolveReference(const char* key);
|
||||
Value& resolveReference(const char* key, const char* end);
|
||||
|
||||
struct CommentInfo {
|
||||
CommentInfo();
|
||||
@ -518,11 +534,12 @@ private:
|
||||
LargestUInt uint_;
|
||||
double real_;
|
||||
bool bool_;
|
||||
char* string_; // actually ptr to unsigned, followed by str
|
||||
char* string_; // actually ptr to unsigned, followed by str, unless !allocated_
|
||||
ObjectValues* map_;
|
||||
} value_;
|
||||
ValueType type_ : 8;
|
||||
unsigned int allocated_ : 1; // Notes: if declared as bool, bitfield is useless.
|
||||
// If not allocated_, string_ must be null-terminated.
|
||||
CommentInfo* comments_;
|
||||
|
||||
// [start, limit) byte offsets in the source JSON text from which this Value
|
||||
@ -624,7 +641,12 @@ public:
|
||||
|
||||
/// Return the member name of the referenced Value. "" if it is not an
|
||||
/// objectValue.
|
||||
const char* memberName() const;
|
||||
/// \deprecated This cannot be used for UTF-8 strings, since there can be embedded nulls.
|
||||
char const* memberName() const;
|
||||
/// Return the member name of the referenced Value, or NULL if it is not an
|
||||
/// objectValue.
|
||||
/// Better version than memberName(). Allows embedded nulls.
|
||||
char const* memberName(char const** end) const;
|
||||
|
||||
protected:
|
||||
Value& deref() const;
|
||||
@ -653,8 +675,8 @@ class JSON_API ValueConstIterator : public ValueIteratorBase {
|
||||
|
||||
public:
|
||||
typedef const Value value_type;
|
||||
typedef unsigned int size_t;
|
||||
typedef int difference_type;
|
||||
//typedef unsigned int size_t;
|
||||
//typedef int difference_type;
|
||||
typedef const Value& reference;
|
||||
typedef const Value* pointer;
|
||||
typedef ValueConstIterator SelfType;
|
||||
|
||||
@ -102,27 +102,38 @@ static inline char* duplicateStringValue(const char* value,
|
||||
|
||||
/* Record the length as a prefix.
|
||||
*/
|
||||
static inline char* duplicatePrefixedStringValue(
|
||||
static inline char* duplicateAndPrefixStringValue(
|
||||
const char* value,
|
||||
unsigned int length = unknown)
|
||||
unsigned int length)
|
||||
{
|
||||
if (length == unknown)
|
||||
length = (unsigned int)strlen(value);
|
||||
|
||||
// Avoid an integer overflow in the call to malloc below by limiting length
|
||||
// to a sane value.
|
||||
if (length >= (unsigned)Value::maxInt)
|
||||
length = Value::maxInt - 1;
|
||||
|
||||
char* newString = static_cast<char*>(malloc(length + 1));
|
||||
JSON_ASSERT_MESSAGE(length <= (unsigned)Value::maxInt - sizeof(unsigned) - 1U,
|
||||
"in Json::Value::duplicateAndPrefixStringValue(): "
|
||||
"length too big for prefixing");
|
||||
unsigned actualLength = length + sizeof(unsigned) + 1U;
|
||||
char* newString = static_cast<char*>(malloc(actualLength));
|
||||
JSON_ASSERT_MESSAGE(newString != 0,
|
||||
"in Json::Value::duplicateStringValue(): "
|
||||
"in Json::Value::duplicateAndPrefixStringValue(): "
|
||||
"Failed to allocate string value buffer");
|
||||
memcpy(newString, value, length);
|
||||
newString[length] = 0;
|
||||
*reinterpret_cast<unsigned*>(newString) = length;
|
||||
memcpy(newString + sizeof(unsigned), value, length);
|
||||
newString[actualLength - 1U] = 0; // to avoid buffer over-run accidents by users later
|
||||
return newString;
|
||||
}
|
||||
/** Free the string duplicated by duplicateStringValue().
|
||||
inline static void decodePrefixedString(
|
||||
bool isPrefixed, char const* prefixed,
|
||||
unsigned* length, char const** value)
|
||||
{
|
||||
if (!isPrefixed) {
|
||||
*length = strlen(prefixed);
|
||||
*value = prefixed;
|
||||
} else {
|
||||
*length = *reinterpret_cast<unsigned const*>(prefixed);
|
||||
*value = prefixed + sizeof(unsigned);
|
||||
}
|
||||
}
|
||||
/** Free the string duplicated by duplicateStringValue()/duplicateAndPrefixStringValue().
|
||||
*/
|
||||
static inline void releaseStringValue(char* value) { free(value); }
|
||||
|
||||
@ -241,8 +252,9 @@ bool Value::CZString::operator==(const CZString& other) const {
|
||||
|
||||
ArrayIndex Value::CZString::index() const { return index_; }
|
||||
|
||||
const char* Value::CZString::c_str() const { return cstr_; }
|
||||
|
||||
//const char* Value::CZString::c_str() const { return cstr_; }
|
||||
const char* Value::CZString::data() const { return cstr_; }
|
||||
unsigned Value::CZString::length() const { return storage_.length_; }
|
||||
bool Value::CZString::isStaticString() const { return storage_.policy_ == noDuplication; }
|
||||
|
||||
// //////////////////////////////////////////////////////////////////
|
||||
@ -311,19 +323,19 @@ Value::Value(double value) {
|
||||
|
||||
Value::Value(const char* value) {
|
||||
initBasic(stringValue, true);
|
||||
value_.string_ = duplicateStringValue(value);
|
||||
value_.string_ = duplicateAndPrefixStringValue(value, strlen(value));
|
||||
}
|
||||
|
||||
Value::Value(const char* beginValue, const char* endValue) {
|
||||
initBasic(stringValue, true);
|
||||
value_.string_ =
|
||||
duplicateStringValue(beginValue, (unsigned int)(endValue - beginValue));
|
||||
duplicateAndPrefixStringValue(beginValue, (unsigned int)(endValue - beginValue));
|
||||
}
|
||||
|
||||
Value::Value(const std::string& value) {
|
||||
initBasic(stringValue, true);
|
||||
value_.string_ =
|
||||
duplicateStringValue(value.c_str(), (unsigned int)value.length());
|
||||
duplicateAndPrefixStringValue(value.data(), (unsigned int)value.length());
|
||||
}
|
||||
|
||||
Value::Value(const StaticString& value) {
|
||||
@ -334,7 +346,7 @@ Value::Value(const StaticString& value) {
|
||||
#ifdef JSON_USE_CPPTL
|
||||
Value::Value(const CppTL::ConstString& value) {
|
||||
initBasic(stringValue, true);
|
||||
value_.string_ = duplicateStringValue(value, value.length());
|
||||
value_.string_ = duplicateAndPrefixStringValue(value, value.length());
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -357,7 +369,11 @@ Value::Value(const Value& other)
|
||||
break;
|
||||
case stringValue:
|
||||
if (other.value_.string_) {
|
||||
value_.string_ = duplicateStringValue(other.value_.string_);
|
||||
unsigned len;
|
||||
char const* str;
|
||||
decodePrefixedString(other.allocated_, other.value_.string_,
|
||||
&len, &str);
|
||||
value_.string_ = duplicateAndPrefixStringValue(str, len);
|
||||
allocated_ = true;
|
||||
} else {
|
||||
value_.string_ = 0;
|
||||
@ -454,9 +470,23 @@ bool Value::operator<(const Value& other) const {
|
||||
case booleanValue:
|
||||
return value_.bool_ < other.value_.bool_;
|
||||
case stringValue:
|
||||
return (value_.string_ == 0 && other.value_.string_) ||
|
||||
(other.value_.string_ && value_.string_ &&
|
||||
strcmp(value_.string_, other.value_.string_) < 0);
|
||||
{
|
||||
if ((value_.string_ == 0) || (other.value_.string_ == 0)) {
|
||||
if (other.value_.string_) return true;
|
||||
else return false;
|
||||
}
|
||||
unsigned this_len;
|
||||
unsigned other_len;
|
||||
char const* this_str;
|
||||
char const* other_str;
|
||||
decodePrefixedString(this->allocated_, this->value_.string_, &this_len, &this_str);
|
||||
decodePrefixedString(other.allocated_, other.value_.string_, &other_len, &other_str);
|
||||
unsigned min_len = std::min(this_len, other_len);
|
||||
int comp = memcmp(this_str, other_str, min_len);
|
||||
if (comp < 0) return true;
|
||||
if (comp > 0) return false;
|
||||
return (this_len < other_len);
|
||||
}
|
||||
case arrayValue:
|
||||
case objectValue: {
|
||||
int delta = int(value_.map_->size() - other.value_.map_->size());
|
||||
@ -496,9 +526,20 @@ bool Value::operator==(const Value& other) const {
|
||||
case booleanValue:
|
||||
return value_.bool_ == other.value_.bool_;
|
||||
case stringValue:
|
||||
return (value_.string_ == other.value_.string_) ||
|
||||
(other.value_.string_ && value_.string_ &&
|
||||
strcmp(value_.string_, other.value_.string_) == 0);
|
||||
{
|
||||
if ((value_.string_ == 0) || (other.value_.string_ == 0)) {
|
||||
return (value_.string_ == other.value_.string_);
|
||||
}
|
||||
unsigned this_len;
|
||||
unsigned other_len;
|
||||
char const* this_str;
|
||||
char const* other_str;
|
||||
decodePrefixedString(this->allocated_, this->value_.string_, &this_len, &this_str);
|
||||
decodePrefixedString(other.allocated_, other.value_.string_, &other_len, &other_str);
|
||||
if (this_len != other_len) return false;
|
||||
int comp = memcmp(this_str, other_str, this_len);
|
||||
return comp == 0;
|
||||
}
|
||||
case arrayValue:
|
||||
case objectValue:
|
||||
return value_.map_->size() == other.value_.map_->size() &&
|
||||
@ -514,7 +555,20 @@ bool Value::operator!=(const Value& other) const { return !(*this == other); }
|
||||
const char* Value::asCString() const {
|
||||
JSON_ASSERT_MESSAGE(type_ == stringValue,
|
||||
"in Json::Value::asCString(): requires stringValue");
|
||||
return value_.string_;
|
||||
if (value_.string_ == 0) return 0;
|
||||
unsigned this_len;
|
||||
char const* this_str;
|
||||
decodePrefixedString(this->allocated_, this->value_.string_, &this_len, &this_str);
|
||||
return this_str;
|
||||
}
|
||||
|
||||
bool Value::getString(char const** str, char const** end) const {
|
||||
if (type_ != stringValue) return false;
|
||||
if (value_.string_ == 0) return false;
|
||||
unsigned length;
|
||||
decodePrefixedString(this->allocated_, this->value_.string_, &length, str);
|
||||
*end = *str + length;
|
||||
return true;
|
||||
}
|
||||
|
||||
std::string Value::asString() const {
|
||||
@ -522,7 +576,13 @@ std::string Value::asString() const {
|
||||
case nullValue:
|
||||
return "";
|
||||
case stringValue:
|
||||
return value_.string_ ? value_.string_ : "";
|
||||
{
|
||||
if (value_.string_ == 0) return "";
|
||||
unsigned this_len;
|
||||
char const* this_str;
|
||||
decodePrefixedString(this->allocated_, this->value_.string_, &this_len, &this_str);
|
||||
return std::string(this_str, this_len);
|
||||
}
|
||||
case booleanValue:
|
||||
return value_.bool_ ? "true" : "false";
|
||||
case intValue:
|
||||
@ -538,7 +598,11 @@ std::string Value::asString() const {
|
||||
|
||||
#ifdef JSON_USE_CPPTL
|
||||
CppTL::ConstString Value::asConstString() const {
|
||||
return CppTL::ConstString(asString().c_str());
|
||||
unsigned len;
|
||||
char const* str;
|
||||
decodePrefixedString(allocated_, value_.string_,
|
||||
&len, &str);
|
||||
return CppTL::ConstString(str, len);
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -852,10 +916,6 @@ const Value& Value::operator[](int index) const {
|
||||
return (*this)[ArrayIndex(index)];
|
||||
}
|
||||
|
||||
Value& Value::operator[](const char* key) {
|
||||
return resolveReference(key, false);
|
||||
}
|
||||
|
||||
void Value::initBasic(ValueType type, bool allocated) {
|
||||
type_ = type;
|
||||
allocated_ = allocated;
|
||||
@ -864,14 +924,37 @@ void Value::initBasic(ValueType type, bool allocated) {
|
||||
limit_ = 0;
|
||||
}
|
||||
|
||||
Value& Value::resolveReference(const char* key, bool isStatic) {
|
||||
// Access an object value by name, create a null member if it does not exist.
|
||||
// @pre Type of '*this' is object or null.
|
||||
// @param key is null-terminated.
|
||||
Value& Value::resolveReference(const char* key) {
|
||||
JSON_ASSERT_MESSAGE(
|
||||
type_ == nullValue || type_ == objectValue,
|
||||
"in Json::Value::resolveReference(): requires objectValue");
|
||||
if (type_ == nullValue)
|
||||
*this = Value(objectValue);
|
||||
CZString actualKey(
|
||||
key, strlen(key), isStatic ? CZString::noDuplication : CZString::duplicateOnCopy);
|
||||
key, strlen(key), CZString::noDuplication); // NOTE!
|
||||
ObjectValues::iterator it = value_.map_->lower_bound(actualKey);
|
||||
if (it != value_.map_->end() && (*it).first == actualKey)
|
||||
return (*it).second;
|
||||
|
||||
ObjectValues::value_type defaultValue(actualKey, null);
|
||||
it = value_.map_->insert(it, defaultValue);
|
||||
Value& value = (*it).second;
|
||||
return value;
|
||||
}
|
||||
|
||||
// @param key is not null-terminated.
|
||||
Value& Value::resolveReference(char const* key, char const* end)
|
||||
{
|
||||
JSON_ASSERT_MESSAGE(
|
||||
type_ == nullValue || type_ == objectValue,
|
||||
"in Json::Value::resolveReference(key, end): requires objectValue");
|
||||
if (type_ == nullValue)
|
||||
*this = Value(objectValue);
|
||||
CZString actualKey(
|
||||
key, (end-key), CZString::duplicateOnCopy);
|
||||
ObjectValues::iterator it = value_.map_->lower_bound(actualKey);
|
||||
if (it != value_.map_->end() && (*it).first == actualKey)
|
||||
return (*it).second;
|
||||
@ -906,24 +989,28 @@ const Value& Value::operator[](const char* key) const
|
||||
if (!found) return null;
|
||||
return *found;
|
||||
}
|
||||
Value& Value::operator[](const std::string& key)
|
||||
{
|
||||
return (*this)[key.c_str()];
|
||||
}
|
||||
Value const& Value::operator[](std::string const& key) const
|
||||
{
|
||||
Value const* found = find(key.data(), key.data() + key.length());
|
||||
if (!found) return null;
|
||||
return *found;
|
||||
}
|
||||
Value& Value::operator[](const StaticString& key)
|
||||
{
|
||||
return resolveReference(key, true);
|
||||
|
||||
Value& Value::operator[](const char* key) {
|
||||
return resolveReference(key, key + strlen(key));
|
||||
}
|
||||
|
||||
Value& Value::operator[](const std::string& key) {
|
||||
return resolveReference(key.data(), key.data() + key.length());
|
||||
}
|
||||
|
||||
Value& Value::operator[](const StaticString& key) {
|
||||
return resolveReference(key.c_str());
|
||||
}
|
||||
|
||||
#ifdef JSON_USE_CPPTL
|
||||
Value& Value::operator[](const CppTL::ConstString& key) {
|
||||
return (*this)[key.c_str()];
|
||||
return resolveReference(key.c_str(), key.end_c_str());
|
||||
}
|
||||
Value const& Value::operator[](CppTL::ConstString const& key) const
|
||||
{
|
||||
@ -1022,18 +1109,18 @@ bool Value::isMember(char const* key, char const* end) const
|
||||
Value const* value = find(key, end);
|
||||
return NULL != value;
|
||||
}
|
||||
bool Value::isMember(const char* key) const
|
||||
bool Value::isMember(char const* key) const
|
||||
{
|
||||
return isMember(key, key + strlen(key));
|
||||
}
|
||||
bool Value::isMember(const std::string& key) const
|
||||
bool Value::isMember(std::string const& key) const
|
||||
{
|
||||
return isMember(key.data(), key.data() + key.length());
|
||||
}
|
||||
|
||||
#ifdef JSON_USE_CPPTL
|
||||
bool Value::isMember(const CppTL::ConstString& key) const {
|
||||
return isMember(key.c_str());
|
||||
return isMember(key.c_str(), key.end_c_str());
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -1047,8 +1134,10 @@ Value::Members Value::getMemberNames() const {
|
||||
members.reserve(value_.map_->size());
|
||||
ObjectValues::const_iterator it = value_.map_->begin();
|
||||
ObjectValues::const_iterator itEnd = value_.map_->end();
|
||||
for (; it != itEnd; ++it)
|
||||
members.push_back(std::string((*it).first.c_str()));
|
||||
for (; it != itEnd; ++it) {
|
||||
members.push_back(std::string((*it).first.data(),
|
||||
(*it).first.length()));
|
||||
}
|
||||
return members;
|
||||
}
|
||||
//
|
||||
|
||||
@ -77,26 +77,36 @@ void ValueIteratorBase::copy(const SelfType& other) {
|
||||
|
||||
Value ValueIteratorBase::key() const {
|
||||
const Value::CZString czstring = (*current_).first;
|
||||
if (czstring.c_str()) {
|
||||
if (czstring.data()) {
|
||||
if (czstring.isStaticString())
|
||||
return Value(StaticString(czstring.c_str()));
|
||||
return Value(czstring.c_str());
|
||||
return Value(StaticString(czstring.data()));
|
||||
return Value(czstring.data(), czstring.data() + czstring.length());
|
||||
}
|
||||
return Value(czstring.index());
|
||||
}
|
||||
|
||||
UInt ValueIteratorBase::index() const {
|
||||
const Value::CZString czstring = (*current_).first;
|
||||
if (!czstring.c_str())
|
||||
if (!czstring.data())
|
||||
return czstring.index();
|
||||
return Value::UInt(-1);
|
||||
}
|
||||
|
||||
const char* ValueIteratorBase::memberName() const {
|
||||
const char* name = (*current_).first.c_str();
|
||||
char const* ValueIteratorBase::memberName() const {
|
||||
const char* name = (*current_).first.data();
|
||||
return name ? name : "";
|
||||
}
|
||||
|
||||
char const* ValueIteratorBase::memberName(char const** end) const {
|
||||
const char* name = (*current_).first.data();
|
||||
if (!name) {
|
||||
*end = NULL;
|
||||
return NULL;
|
||||
}
|
||||
*end = name + (*current_).first.length();
|
||||
return name;
|
||||
}
|
||||
|
||||
// //////////////////////////////////////////////////////////////////
|
||||
// //////////////////////////////////////////////////////////////////
|
||||
// //////////////////////////////////////////////////////////////////
|
||||
|
||||
@ -50,6 +50,16 @@ static bool containsControlCharacter(const char* str) {
|
||||
return false;
|
||||
}
|
||||
|
||||
static bool containsControlCharacter0(const char* str, unsigned len) {
|
||||
char const* end = str + len;
|
||||
while (end != str) {
|
||||
if (isControlCharacter(*str) || 0==*str)
|
||||
return true;
|
||||
++str;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
std::string valueToString(LargestInt value) {
|
||||
UIntToStringBuffer buffer;
|
||||
char* current = buffer + sizeof(buffer);
|
||||
@ -184,6 +194,84 @@ std::string valueToQuotedString(const char* value) {
|
||||
return result;
|
||||
}
|
||||
|
||||
// https://github.com/upcaste/upcaste/blob/master/src/upcore/src/cstring/strnpbrk.cpp
|
||||
static char const* strnpbrk(char const* s, char const* accept, size_t n) {
|
||||
assert((s || !n) && accept);
|
||||
|
||||
char const* const end = s + n;
|
||||
for (char const* cur = s; cur < end; ++cur) {
|
||||
int const c = *cur;
|
||||
for (char const* a = accept; *a; ++a) {
|
||||
if (*a == c) {
|
||||
return cur;
|
||||
}
|
||||
}
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
static std::string valueToQuotedStringN(const char* value, unsigned length) {
|
||||
if (value == NULL)
|
||||
return "";
|
||||
// Not sure how to handle unicode...
|
||||
if (strnpbrk(value, "\"\\\b\f\n\r\t", length) == NULL &&
|
||||
!containsControlCharacter0(value, length))
|
||||
return std::string("\"") + value + "\"";
|
||||
// We have to walk value and escape any special characters.
|
||||
// Appending to std::string is not efficient, but this should be rare.
|
||||
// (Note: forward slashes are *not* rare, but I am not escaping them.)
|
||||
std::string::size_type maxsize =
|
||||
length * 2 + 3; // allescaped+quotes+NULL
|
||||
std::string result;
|
||||
result.reserve(maxsize); // to avoid lots of mallocs
|
||||
result += "\"";
|
||||
char const* end = value + length;
|
||||
for (const char* c = value; c != end; ++c) {
|
||||
switch (*c) {
|
||||
case '\"':
|
||||
result += "\\\"";
|
||||
break;
|
||||
case '\\':
|
||||
result += "\\\\";
|
||||
break;
|
||||
case '\b':
|
||||
result += "\\b";
|
||||
break;
|
||||
case '\f':
|
||||
result += "\\f";
|
||||
break;
|
||||
case '\n':
|
||||
result += "\\n";
|
||||
break;
|
||||
case '\r':
|
||||
result += "\\r";
|
||||
break;
|
||||
case '\t':
|
||||
result += "\\t";
|
||||
break;
|
||||
// case '/':
|
||||
// Even though \/ is considered a legal escape in JSON, a bare
|
||||
// slash is also legal, so I see no reason to escape it.
|
||||
// (I hope I am not misunderstanding something.)
|
||||
// blep notes: actually escaping \/ may be useful in javascript to avoid </
|
||||
// sequence.
|
||||
// Should add a flag to allow this compatibility mode and prevent this
|
||||
// sequence from occurring.
|
||||
default:
|
||||
if ((isControlCharacter(*c)) || (*c == 0)) {
|
||||
std::ostringstream oss;
|
||||
oss << "\\u" << std::hex << std::uppercase << std::setfill('0')
|
||||
<< std::setw(4) << static_cast<int>(*c);
|
||||
result += oss.str();
|
||||
} else {
|
||||
result += *c;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
result += "\"";
|
||||
return result;
|
||||
}
|
||||
|
||||
// Class Writer
|
||||
// //////////////////////////////////////////////////////////////////
|
||||
Writer::~Writer() {}
|
||||
@ -248,7 +336,7 @@ void FastWriter::writeValue(const Value& value) {
|
||||
const std::string& name = *it;
|
||||
if (it != members.begin())
|
||||
document_ += ',';
|
||||
document_ += valueToQuotedString(name.c_str());
|
||||
document_ += valueToQuotedStringN(name.data(), name.length());
|
||||
document_ += yamlCompatiblityEnabled_ ? ": " : ":";
|
||||
writeValue(value[name]);
|
||||
}
|
||||
@ -289,8 +377,15 @@ void StyledWriter::writeValue(const Value& value) {
|
||||
pushValue(valueToString(value.asDouble()));
|
||||
break;
|
||||
case stringValue:
|
||||
pushValue(valueToQuotedString(value.asCString()));
|
||||
{
|
||||
// Is NULL is possible for value.string_?
|
||||
char const* str;
|
||||
char const* end;
|
||||
bool ok = value.getString(&str, &end);
|
||||
if (ok) pushValue(valueToQuotedStringN(str, static_cast<unsigned>(end-str)));
|
||||
else pushValue("");
|
||||
break;
|
||||
}
|
||||
case booleanValue:
|
||||
pushValue(valueToString(value.asBool()));
|
||||
break;
|
||||
@ -767,8 +862,15 @@ void BuiltStyledStreamWriter::writeValue(Value const& value) {
|
||||
pushValue(valueToString(value.asDouble()));
|
||||
break;
|
||||
case stringValue:
|
||||
pushValue(valueToQuotedString(value.asCString()));
|
||||
{
|
||||
// Is NULL is possible for value.string_?
|
||||
char const* str;
|
||||
char const* end;
|
||||
bool ok = value.getString(&str, &end);
|
||||
if (ok) pushValue(valueToQuotedStringN(str, static_cast<unsigned>(end-str)));
|
||||
else pushValue("");
|
||||
break;
|
||||
}
|
||||
case booleanValue:
|
||||
pushValue(valueToString(value.asBool()));
|
||||
break;
|
||||
@ -787,7 +889,7 @@ void BuiltStyledStreamWriter::writeValue(Value const& value) {
|
||||
std::string const& name = *it;
|
||||
Value const& childValue = value[name];
|
||||
writeCommentBeforeValue(childValue);
|
||||
writeWithIndent(valueToQuotedString(name.c_str()));
|
||||
writeWithIndent(valueToQuotedStringN(name.data(), name.length()));
|
||||
*sout_ << colonSymbol_;
|
||||
writeValue(childValue);
|
||||
if (++it == members.end()) {
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user