/*
* Copyright 2009-2010 Cybozu Labs, Inc.
- * Copyright 2011 Kazuho Oku
+ * Copyright 2011-2014 Kazuho Oku
+ * All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
+ *
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
- * THIS SOFTWARE IS PROVIDED BY CYBOZU LABS, INC. ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL CYBOZU LABS, INC. OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * The views and conclusions contained in the software and documentation are
- * those of the authors and should not be interpreted as representing official
- * policies, either expressed or implied, of Cybozu Labs, Inc.
- *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef picojson_h
#define picojson_h
#include <algorithm>
-#include <cmath>
+#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <iterator>
+#include <limits>
#include <map>
+#include <memory>
#include <sstream>
+#include <stdexcept>
#include <string>
+#include <utility>
#include <vector>
#include "common/assert.h"
+// for isnan/isinf
+#if __cplusplus >= 201103L
+#include <cmath>
+#else
+extern "C" {
+#ifdef _MSC_VER
+#include <float.h>
+#elif defined(__INTEL_COMPILER)
+#include <mathimf.h>
+#else
+#include <math.h>
+#endif
+}
+#endif
+
+#ifndef PICOJSON_USE_RVALUE_REFERENCE
+#if (defined(__cpp_rvalue_references) && __cpp_rvalue_references >= 200610) || \
+ (defined(_MSC_VER) && _MSC_VER >= 1600)
+#define PICOJSON_USE_RVALUE_REFERENCE 1
+#else
+#define PICOJSON_USE_RVALUE_REFERENCE 0
+#endif
+#endif // PICOJSON_USE_RVALUE_REFERENCE
+
+#ifndef PICOJSON_NOEXCEPT
+#if PICOJSON_USE_RVALUE_REFERENCE
+#define PICOJSON_NOEXCEPT noexcept
+#else
+#define PICOJSON_NOEXCEPT throw()
+#endif
+#endif
+
+// experimental support for int64_t (see README.mkdn for detail)
+#ifdef PICOJSON_USE_INT64
+#define __STDC_FORMAT_MACROS
+#include <errno.h>
+#include <inttypes.h>
+#endif
+
#ifdef _MSC_VER
#define SNPRINTF _snprintf_s
#pragma warning(push)
#pragma warning(disable : 4244) // conversion from int to char
+#pragma warning(disable : 4127) // conditional expression is constant
+#pragma warning(disable : 4702) // unreachable code
#else
#define SNPRINTF snprintf
#endif
namespace picojson {
-enum { null_type, boolean_type, number_type, string_type, array_type, object_type };
+enum {
+ null_type,
+ boolean_type,
+ number_type,
+ string_type,
+ array_type,
+ object_type
+#ifdef PICOJSON_USE_INT64
+ ,
+ int64_type
+#endif
+};
+
+enum { INDENT_WIDTH = 2 };
struct null {};
union _storage {
bool boolean_;
double number_;
- std::string* string_;
- array* array_;
- object* object_;
+#ifdef PICOJSON_USE_INT64
+ int64_t int64_;
+#endif
+ std::string *string_;
+ array *array_;
+ object *object_;
};
protected:
value();
value(int type, bool);
explicit value(bool b);
+#ifdef PICOJSON_USE_INT64
+ explicit value(int64_t i);
+#endif
explicit value(double n);
- explicit value(const std::string& s);
- explicit value(const array& a);
- explicit value(const object& o);
- explicit value(const char* s);
- value(const char* s, size_t len);
+ explicit value(const std::string &s);
+ explicit value(const array &a);
+ explicit value(const object &o);
+#if PICOJSON_USE_RVALUE_REFERENCE
+ explicit value(std::string &&s);
+ explicit value(array &&a);
+ explicit value(object &&o);
+#endif
+ explicit value(const char *s);
+ value(const char *s, size_t len);
~value();
- value(const value& x);
- value& operator=(const value& x);
- void swap(value& x);
+ value(const value &x);
+ value &operator=(const value &x);
+#if PICOJSON_USE_RVALUE_REFERENCE
+ value(value &&x) PICOJSON_NOEXCEPT;
+ value &operator=(value &&x) PICOJSON_NOEXCEPT;
+#endif
+ void swap(value &x) PICOJSON_NOEXCEPT;
template <typename T>
bool is() const;
template <typename T>
- const T& get() const;
+ const T &get() const;
+ template <typename T>
+ T &get();
template <typename T>
- T& get();
+ void set(const T &);
+#if PICOJSON_USE_RVALUE_REFERENCE
+ template <typename T>
+ void set(T &&);
+#endif
bool evaluate_as_boolean() const;
- const value& get(size_t idx) const;
- const value& get(const std::string& key) const;
- bool contains(size_t idx) const;
- bool contains(const std::string& key) const;
+ const value &get(const size_t idx) const;
+ const value &get(const std::string &key) const;
+ value &get(const size_t idx);
+ value &get(const std::string &key);
+
+ bool contains(const size_t idx) const;
+ bool contains(const std::string &key) const;
std::string to_str() const;
template <typename Iter>
- void serialize(Iter os) const;
- std::string serialize() const;
+ void serialize(Iter os, bool prettify = false) const;
+ std::string serialize(bool prettify = false) const;
private:
template <typename T>
- value(const T*); // intentionally defined to block implicit conversion of pointer to bool
+ value(const T *); // intentionally defined to block implicit conversion of pointer to bool
+ template <typename Iter>
+ static void _indent(Iter os, int indent);
+ template <typename Iter>
+ void _serialize(Iter os, int indent) const;
+ std::string _serialize(int indent) const;
+ void clear();
};
typedef value::array array;
typedef value::object object;
-inline value::value() : type_(null_type) {
+inline value::value() : type_(null_type), u_() {
}
-inline value::value(int type, bool) : type_(type) {
+inline value::value(int type, bool) : type_(type), u_() {
switch (type) {
#define INIT(p, v) \
case p##type: \
break
INIT(boolean_, false);
INIT(number_, 0.0);
+#ifdef PICOJSON_USE_INT64
+ INIT(int64_, 0);
+#endif
INIT(string_, new std::string());
INIT(array_, new array());
INIT(object_, new object());
}
}
-inline value::value(bool b) : type_(boolean_type) {
+inline value::value(bool b) : type_(boolean_type), u_() {
u_.boolean_ = b;
}
-inline value::value(double n) : type_(number_type) {
+#ifdef PICOJSON_USE_INT64
+inline value::value(int64_t i) : type_(int64_type), u_() {
+ u_.int64_ = i;
+}
+#endif
+
+inline value::value(double n) : type_(number_type), u_() {
+ if (
+#ifdef _MSC_VER
+ !_finite(n)
+#elif __cplusplus >= 201103L
+ std::isnan(n) || std::isinf(n)
+#else
+ isnan(n) || isinf(n)
+#endif
+ ) {
+ throw std::overflow_error("");
+ }
u_.number_ = n;
}
-inline value::value(const std::string& s) : type_(string_type) {
+inline value::value(const std::string &s) : type_(string_type), u_() {
u_.string_ = new std::string(s);
}
-inline value::value(const array& a) : type_(array_type) {
+inline value::value(const array &a) : type_(array_type), u_() {
u_.array_ = new array(a);
}
-inline value::value(const object& o) : type_(object_type) {
+inline value::value(const object &o) : type_(object_type), u_() {
u_.object_ = new object(o);
}
-inline value::value(const char* s) : type_(string_type) {
+#if PICOJSON_USE_RVALUE_REFERENCE
+inline value::value(std::string &&s) : type_(string_type), u_() {
+ u_.string_ = new std::string(std::move(s));
+}
+
+inline value::value(array &&a) : type_(array_type), u_() {
+ u_.array_ = new array(std::move(a));
+}
+
+inline value::value(object &&o) : type_(object_type), u_() {
+ u_.object_ = new object(std::move(o));
+}
+#endif
+
+inline value::value(const char *s) : type_(string_type), u_() {
u_.string_ = new std::string(s);
}
-inline value::value(const char* s, size_t len) : type_(string_type) {
+inline value::value(const char *s, size_t len) : type_(string_type), u_() {
u_.string_ = new std::string(s, len);
}
-inline value::~value() {
+inline void value::clear() {
switch (type_) {
#define DEINIT(p) \
case p##type: \
}
}
-inline value::value(const value& x) : type_(x.type_) {
+inline value::~value() {
+ clear();
+}
+
+inline value::value(const value &x) : type_(x.type_), u_() {
switch (type_) {
#define INIT(p, v) \
case p##type: \
}
}
-inline value& value::operator=(const value& x) {
+inline value &value::operator=(const value &x) {
if (this != &x) {
- this->~value();
- new (this) value(x);
+ value t(x);
+ swap(t);
}
return *this;
}
-inline void value::swap(value& x) {
+#if PICOJSON_USE_RVALUE_REFERENCE
+inline value::value(value &&x) PICOJSON_NOEXCEPT : type_(null_type), u_() {
+ swap(x);
+}
+inline value &value::operator=(value &&x) PICOJSON_NOEXCEPT {
+ swap(x);
+ return *this;
+}
+#endif
+inline void value::swap(value &x) PICOJSON_NOEXCEPT {
std::swap(type_, x.type_);
std::swap(u_, x.u_);
}
}
IS(null, null)
IS(bool, boolean)
-IS(int, number)
-IS(double, number)
+#ifdef PICOJSON_USE_INT64
+IS(int64_t, int64)
+#endif
IS(std::string, string)
IS(array, array)
IS(object, object)
#undef IS
+template <>
+inline bool value::is<double>() const {
+ return type_ == number_type
+#ifdef PICOJSON_USE_INT64
+ || type_ == int64_type
+#endif
+ ;
+}
-#define GET(ctype, var) \
- template <> \
- inline const ctype& value::get<ctype>() const { \
- Assert("type mismatch! call vis<type>() before get<type>()" && is<ctype>()); \
- return var; \
- } \
- template <> \
- inline ctype& value::get<ctype>() { \
- Assert("type mismatch! call is<type>() before get<type>()" && is<ctype>()); \
- return var; \
+#define GET(ctype, var) \
+ template <> \
+ inline const ctype &value::get<ctype>() const { \
+ Assert("type mismatch! call is<type>() before get<type>()" && is<ctype>()); \
+ return var; \
+ } \
+ template <> \
+ inline ctype &value::get<ctype>() { \
+ Assert("type mismatch! call is<type>() before get<type>()" && is<ctype>()); \
+ return var; \
}
GET(bool, u_.boolean_)
-GET(double, u_.number_)
GET(std::string, *u_.string_)
GET(array, *u_.array_)
GET(object, *u_.object_)
+#ifdef PICOJSON_USE_INT64
+GET(double, (type_ == int64_type && (const_cast<value *>(this)->type_ = number_type,
+ const_cast<value *>(this)->u_.number_ = u_.int64_),
+ u_.number_))
+GET(int64_t, u_.int64_)
+#else
+GET(double, u_.number_)
+#endif
#undef GET
+#define SET(ctype, jtype, setter) \
+ template <> \
+ inline void value::set<ctype>(const ctype &_val) { \
+ clear(); \
+ type_ = jtype##_type; \
+ setter \
+ }
+SET(bool, boolean, u_.boolean_ = _val;)
+SET(std::string, string, u_.string_ = new std::string(_val);)
+SET(array, array, u_.array_ = new array(_val);)
+SET(object, object, u_.object_ = new object(_val);)
+SET(double, number, u_.number_ = _val;)
+#ifdef PICOJSON_USE_INT64
+SET(int64_t, int64, u_.int64_ = _val;)
+#endif
+#undef SET
+
+#if PICOJSON_USE_RVALUE_REFERENCE
+#define MOVESET(ctype, jtype, setter) \
+ template <> \
+ inline void value::set<ctype>(ctype && _val) { \
+ clear(); \
+ type_ = jtype##_type; \
+ setter \
+ }
+MOVESET(std::string, string, u_.string_ = new std::string(std::move(_val));)
+MOVESET(array, array, u_.array_ = new array(std::move(_val));)
+MOVESET(object, object, u_.object_ = new object(std::move(_val));)
+#undef MOVESET
+#endif
+
inline bool value::evaluate_as_boolean() const {
switch (type_) {
case null_type:
return u_.boolean_;
case number_type:
return u_.number_ != 0;
+#ifdef PICOJSON_USE_INT64
+ case int64_type:
+ return u_.int64_ != 0;
+#endif
case string_type:
return !u_.string_->empty();
default:
}
}
-inline const value& value::get(size_t idx) const {
+inline const value &value::get(const size_t idx) const {
+ static value s_null;
+ Assert(is<array>());
+ return idx < u_.array_->size() ? (*u_.array_)[idx] : s_null;
+}
+
+inline value &value::get(const size_t idx) {
static value s_null;
Assert(is<array>());
return idx < u_.array_->size() ? (*u_.array_)[idx] : s_null;
}
-inline const value& value::get(const std::string& key) const {
+inline const value &value::get(const std::string &key) const {
static value s_null;
Assert(is<object>());
object::const_iterator i = u_.object_->find(key);
return i != u_.object_->end() ? i->second : s_null;
}
-inline bool value::contains(size_t idx) const {
+inline value &value::get(const std::string &key) {
+ static value s_null;
+ Assert(is<object>());
+ object::iterator i = u_.object_->find(key);
+ return i != u_.object_->end() ? i->second : s_null;
+}
+
+inline bool value::contains(const size_t idx) const {
Assert(is<array>());
return idx < u_.array_->size();
}
-inline bool value::contains(const std::string& key) const {
+inline bool value::contains(const std::string &key) const {
Assert(is<object>());
object::const_iterator i = u_.object_->find(key);
return i != u_.object_->end();
return "null";
case boolean_type:
return u_.boolean_ ? "true" : "false";
+#ifdef PICOJSON_USE_INT64
+ case int64_type: {
+ char buf[sizeof("-9223372036854775808")];
+ SNPRINTF(buf, sizeof(buf), "%" PRId64, u_.int64_);
+ return buf;
+ }
+#endif
case number_type: {
std::stringstream num_str;
num_str.imbue(std::locale::classic());
}
template <typename Iter>
-void copy(const std::string& s, Iter oi) {
+void copy(const std::string &s, Iter oi) {
std::copy(s.begin(), s.end(), oi);
}
template <typename Iter>
-void serialize_str(const std::string& s, Iter oi) {
- // C0 control characters, 00-1F
- static const char* u_map[] = {
- "\\u0000", "\\u0001", "\\u0002", "\\u0003", "\\u0004", "\\u0005", "\\u0006", "\\u0007",
- "\\b", "\\t", "\\n", "\\u000b", "\\f", "\\r", "\\u000e", "\\u000f",
- "\\u0010", "\\u0011", "\\u0012", "\\u0013", "\\u0014", "\\u0015", "\\u0016", "\\u0017",
- "\\u0018", "\\u0019", "\\u001a", "\\u001b", "\\u001c", "\\u001d", "\\u001e", "\\u001f"};
- // To be sure we could rewrite C1 control characters also (first decode UTF-8, check, then map to
- // \u sequence), but for now chromium allows C1 in JSON.parse
-
- *oi++ = '"';
- for (std::string::const_iterator i = s.begin(); i != s.end(); ++i) {
- switch (*i) {
+struct serialize_str_char {
+ Iter oi;
+ void operator()(char c) {
+ // C0 control characters, 00-1F
+ static const char *u_map[] = {
+ "\\u0000", "\\u0001", "\\u0002", "\\u0003", "\\u0004", "\\u0005", "\\u0006", "\\u0007",
+ "\\b", "\\t", "\\n", "\\u000b", "\\f", "\\r", "\\u000e", "\\u000f",
+ "\\u0010", "\\u0011", "\\u0012", "\\u0013", "\\u0014", "\\u0015", "\\u0016", "\\u0017",
+ "\\u0018", "\\u0019", "\\u001a", "\\u001b", "\\u001c", "\\u001d", "\\u001e", "\\u001f"};
+ // To be sure we could rewrite C1 control characters also (first decode UTF-8, check, then map
+ // to
+ // \u sequence), but for now chromium allows C1 in JSON.parse
+ switch (c) {
case '"':
copy("\\\"", oi);
break;
copy("\\u007f", oi);
break;
default:
- if ((unsigned char)*i < 0x20) {
- const char* u = u_map[(unsigned char)*i];
+ if ((unsigned char)c < 0x20) {
+ const char *u = u_map[(unsigned char)c];
while (*u) {
*oi++ = *u++;
}
} else {
- *oi++ = *i;
+ *oi++ = c;
}
break;
}
}
+};
+
+template <typename Iter>
+void serialize_str(const std::string &s, Iter oi) {
+ *oi++ = '"';
+ serialize_str_char<Iter> process_char = {oi};
+ std::for_each(s.begin(), s.end(), process_char);
*oi++ = '"';
}
template <typename Iter>
-void value::serialize(Iter oi) const {
+void value::serialize(Iter oi, bool prettify) const {
+ return _serialize(oi, prettify ? 0 : -1);
+}
+
+inline std::string value::serialize(bool prettify) const {
+ return _serialize(prettify ? 0 : -1);
+}
+
+template <typename Iter>
+void value::_indent(Iter oi, int indent) {
+ *oi++ = '\n';
+ for (int i = 0; i < indent * INDENT_WIDTH; ++i) {
+ *oi++ = ' ';
+ }
+}
+
+template <typename Iter>
+void value::_serialize(Iter oi, int indent) const {
switch (type_) {
case string_type:
serialize_str(*u_.string_, oi);
break;
case array_type: {
*oi++ = '[';
+ if (indent != -1) {
+ ++indent;
+ }
for (array::const_iterator i = u_.array_->begin(); i != u_.array_->end(); ++i) {
if (i != u_.array_->begin()) {
*oi++ = ',';
}
- i->serialize(oi);
+ if (indent != -1) {
+ _indent(oi, indent);
+ }
+ i->_serialize(oi, indent);
+ }
+ if (indent != -1) {
+ --indent;
+ if (!u_.array_->empty()) {
+ _indent(oi, indent);
+ }
}
*oi++ = ']';
break;
}
case object_type: {
*oi++ = '{';
+ if (indent != -1) {
+ ++indent;
+ }
for (object::const_iterator i = u_.object_->begin(); i != u_.object_->end(); ++i) {
if (i != u_.object_->begin()) {
*oi++ = ',';
}
+ if (indent != -1) {
+ _indent(oi, indent);
+ }
serialize_str(i->first, oi);
*oi++ = ':';
- i->second.serialize(oi);
+ if (indent != -1) {
+ *oi++ = ' ';
+ }
+ i->second._serialize(oi, indent);
+ }
+ if (indent != -1) {
+ --indent;
+ if (!u_.object_->empty()) {
+ _indent(oi, indent);
+ }
}
*oi++ = '}';
break;
copy(to_str(), oi);
break;
}
+ if (indent == 0) {
+ *oi++ = '\n';
+ }
}
-inline std::string value::serialize() const {
+inline std::string value::_serialize(int indent) const {
std::string s;
- serialize(std::back_inserter(s));
+ _serialize(std::back_inserter(s), indent);
return s;
}
class input {
protected:
Iter cur_, end_;
- int last_ch_;
- bool ungot_;
+ bool consumed_;
int line_;
public:
- input(const Iter& first, const Iter& last)
- : cur_(first), end_(last), last_ch_(-1), ungot_(false), line_(1) {
+ input(const Iter &first, const Iter &last) : cur_(first), end_(last), consumed_(false), line_(1) {
}
int getc() {
- if (ungot_) {
- ungot_ = false;
- return last_ch_;
+ if (consumed_) {
+ if (*cur_ == '\n') {
+ ++line_;
+ }
+ ++cur_;
}
if (cur_ == end_) {
- last_ch_ = -1;
+ consumed_ = false;
return -1;
}
- if (last_ch_ == '\n') {
- line_++;
- }
- last_ch_ = *cur_++ & 0xff;
- return last_ch_;
+ consumed_ = true;
+ return *cur_ & 0xff;
}
void ungetc() {
- if (last_ch_ != -1) {
- Assert(!ungot_);
- ungot_ = true;
- }
+ consumed_ = false;
}
Iter cur() const {
+ if (consumed_) {
+ input<Iter> *self = const_cast<input<Iter> *>(this);
+ self->consumed_ = false;
+ ++self->cur_;
+ }
return cur_;
}
int line() const {
}
}
}
- bool expect(int expect) {
+ bool expect(const int expected) {
skip_ws();
- if (getc() != expect) {
+ if (getc() != expected) {
ungetc();
return false;
}
return true;
}
- bool match(const std::string& pattern) {
+ bool match(const std::string &pattern) {
for (std::string::const_iterator pi(pattern.begin()); pi != pattern.end(); ++pi) {
if (getc() != *pi) {
ungetc();
};
template <typename Iter>
-inline int _parse_quadhex(input<Iter>& in) {
+inline int _parse_quadhex(input<Iter> &in) {
int uni_ch = 0, hex;
for (int i = 0; i < 4; i++) {
if ((hex = in.getc()) == -1) {
}
template <typename String, typename Iter>
-inline bool _parse_codepoint(String& out, input<Iter>& in) {
+inline bool _parse_codepoint(String &out, input<Iter> &in) {
int uni_ch;
if ((uni_ch = _parse_quadhex(in)) == -1) {
return false;
uni_ch += 0x10000;
}
if (uni_ch < 0x80) {
- out.push_back(uni_ch);
+ out.push_back(static_cast<char>(uni_ch));
} else {
if (uni_ch < 0x800) {
- out.push_back(0xc0 | (uni_ch >> 6));
+ out.push_back(static_cast<char>(0xc0 | (uni_ch >> 6)));
} else {
if (uni_ch < 0x10000) {
- out.push_back(0xe0 | (uni_ch >> 12));
+ out.push_back(static_cast<char>(0xe0 | (uni_ch >> 12)));
} else {
- out.push_back(0xf0 | (uni_ch >> 18));
- out.push_back(0x80 | ((uni_ch >> 12) & 0x3f));
+ out.push_back(static_cast<char>(0xf0 | (uni_ch >> 18)));
+ out.push_back(static_cast<char>(0x80 | ((uni_ch >> 12) & 0x3f)));
}
- out.push_back(0x80 | ((uni_ch >> 6) & 0x3f));
+ out.push_back(static_cast<char>(0x80 | ((uni_ch >> 6) & 0x3f)));
}
- out.push_back(0x80 | (uni_ch & 0x3f));
+ out.push_back(static_cast<char>(0x80 | (uni_ch & 0x3f)));
}
return true;
}
template <typename String, typename Iter>
-inline bool _parse_string(String& out, input<Iter>& in) {
+inline bool _parse_string(String &out, input<Iter> &in) {
while (1) {
int ch = in.getc();
if (ch < ' ') {
return false;
}
} else {
- out.push_back(ch);
+ out.push_back(static_cast<char>(ch));
}
}
return false;
}
template <typename Context, typename Iter>
-inline bool _parse_array(Context& ctx, input<Iter>& in) {
+inline bool _parse_array(Context &ctx, input<Iter> &in) {
if (!ctx.parse_array_start()) {
return false;
}
+ size_t idx = 0;
if (in.expect(']')) {
- return true;
+ return ctx.parse_array_stop(idx);
}
- size_t idx = 0;
do {
if (!ctx.parse_array_item(in, idx)) {
return false;
}
idx++;
} while (in.expect(','));
- return in.expect(']');
+ return in.expect(']') && ctx.parse_array_stop(idx);
}
template <typename Context, typename Iter>
-inline bool _parse_object(Context& ctx, input<Iter>& in) {
+inline bool _parse_object(Context &ctx, input<Iter> &in) {
if (!ctx.parse_object_start()) {
return false;
}
}
template <typename Iter>
-inline bool _parse_number(double& out, input<Iter>& in) {
+inline std::string _parse_number(input<Iter> &in) {
std::stringstream num_str;
num_str.imbue(std::locale::classic());
while (true) {
int ch = in.getc();
- if (('0' <= ch && ch <= '9') || ch == '+' || ch == '-' || ch == '.' || ch == 'e' || ch == 'E') {
+ if (('0' <= ch && ch <= '9') || ch == '+' || ch == '-' || ch == 'e' || ch == 'E' || ch == '.') {
num_str.put(ch);
} else {
in.ungetc();
}
}
- num_str >> out;
-
- return num_str && num_str.eof();
+ return num_str.str();
}
template <typename Context, typename Iter>
-inline bool _parse(Context& ctx, input<Iter>& in) {
+inline bool _parse(Context &ctx, input<Iter> &in) {
in.skip_ws();
int ch = in.getc();
switch (ch) {
return _parse_object(ctx, in);
default:
if (('0' <= ch && ch <= '9') || ch == '-') {
- in.ungetc();
double f;
- if (_parse_number(f, in)) {
+ char *endp;
+ in.ungetc();
+ std::string num_str(_parse_number(in));
+ if (num_str.empty()) {
+ return false;
+ }
+#ifdef PICOJSON_USE_INT64
+ {
+ errno = 0;
+ intmax_t ival = strtoimax(num_str.c_str(), &endp, 10);
+ if (errno == 0 && std::numeric_limits<int64_t>::min() <= ival &&
+ ival <= std::numeric_limits<int64_t>::max() &&
+ endp == num_str.c_str() + num_str.size()) {
+ ctx.set_int64(ival);
+ return true;
+ }
+ }
+#endif
+ f = strtod(num_str.c_str(), &endp);
+ if (endp == num_str.c_str() + num_str.size()) {
ctx.set_number(f);
return true;
- } else {
- return false;
}
+ return false;
}
break;
}
bool set_bool(bool) {
return false;
}
+#ifdef PICOJSON_USE_INT64
+ bool set_int64(int64_t) {
+ return false;
+ }
+#endif
bool set_number(double) {
return false;
}
template <typename Iter>
- bool parse_string(input<Iter>&) {
+ bool parse_string(input<Iter> &) {
return false;
}
bool parse_array_start() {
return false;
}
template <typename Iter>
- bool parse_array_item(input<Iter>&, size_t) {
+ bool parse_array_item(input<Iter> &, size_t) {
+ return false;
+ }
+ bool parse_array_stop(size_t) {
return false;
}
bool parse_object_start() {
return false;
}
template <typename Iter>
- bool parse_object_item(input<Iter>&, const std::string&) {
+ bool parse_object_item(input<Iter> &, const std::string &) {
return false;
}
};
class default_parse_context {
protected:
- value* out_;
+ value *out_;
public:
- default_parse_context(value* out) : out_(out) {
+ default_parse_context(value *out) : out_(out) {
}
bool set_null() {
*out_ = value();
*out_ = value(b);
return true;
}
+#ifdef PICOJSON_USE_INT64
+ bool set_int64(int64_t i) {
+ *out_ = value(i);
+ return true;
+ }
+#endif
bool set_number(double f) {
*out_ = value(f);
return true;
}
template <typename Iter>
- bool parse_string(input<Iter>& in) {
+ bool parse_string(input<Iter> &in) {
*out_ = value(string_type, false);
return _parse_string(out_->get<std::string>(), in);
}
return true;
}
template <typename Iter>
- bool parse_array_item(input<Iter>& in, size_t) {
- array& a = out_->get<array>();
+ bool parse_array_item(input<Iter> &in, size_t) {
+ array &a = out_->get<array>();
a.push_back(value());
default_parse_context ctx(&a.back());
return _parse(ctx, in);
}
+ bool parse_array_stop(size_t) {
+ return true;
+ }
bool parse_object_start() {
*out_ = value(object_type, false);
return true;
}
template <typename Iter>
- bool parse_object_item(input<Iter>& in, const std::string& key) {
- object& o = out_->get<object>();
+ bool parse_object_item(input<Iter> &in, const std::string &key) {
+ object &o = out_->get<object>();
default_parse_context ctx(&o[key]);
return _parse(ctx, in);
}
private:
- default_parse_context(const default_parse_context&);
- default_parse_context& operator=(const default_parse_context&);
+ default_parse_context(const default_parse_context &);
+ default_parse_context &operator=(const default_parse_context &);
};
class null_parse_context {
bool set_bool(bool) {
return true;
}
+#ifdef PICOJSON_USE_INT64
+ bool set_int64(int64_t) {
+ return true;
+ }
+#endif
bool set_number(double) {
return true;
}
template <typename Iter>
- bool parse_string(input<Iter>& in) {
+ bool parse_string(input<Iter> &in) {
dummy_str s;
return _parse_string(s, in);
}
return true;
}
template <typename Iter>
- bool parse_array_item(input<Iter>& in, size_t) {
+ bool parse_array_item(input<Iter> &in, size_t) {
return _parse(*this, in);
}
+ bool parse_array_stop(size_t) {
+ return true;
+ }
bool parse_object_start() {
return true;
}
template <typename Iter>
- bool parse_object_item(input<Iter>& in, const std::string&) {
+ bool parse_object_item(input<Iter> &in, const std::string &) {
return _parse(*this, in);
}
private:
- null_parse_context(const null_parse_context&);
- null_parse_context& operator=(const null_parse_context&);
+ null_parse_context(const null_parse_context &);
+ null_parse_context &operator=(const null_parse_context &);
};
// obsolete, use the version below
template <typename Iter>
-inline std::string parse(value& out, Iter& pos, const Iter& last) {
+inline std::string parse(value &out, Iter &pos, const Iter &last) {
std::string err;
pos = parse(out, pos, last, &err);
return err;
}
template <typename Context, typename Iter>
-inline Iter _parse(Context& ctx, const Iter& first, const Iter& last, std::string* err) {
+inline Iter _parse(Context &ctx, const Iter &first, const Iter &last, std::string *err) {
input<Iter> in(first, last);
if (!_parse(ctx, in) && err != NULL) {
char buf[64];
if (ch == -1 || ch == '\n') {
break;
} else if (ch >= ' ') {
- err->push_back(ch);
+ err->push_back(static_cast<char>(ch));
}
}
}
}
template <typename Iter>
-inline Iter parse(value& out, const Iter& first, const Iter& last, std::string* err) {
+inline Iter parse(value &out, const Iter &first, const Iter &last, std::string *err) {
default_parse_context ctx(&out);
return _parse(ctx, first, last, err);
}
-inline std::string parse(value& out, std::istream& is) {
+inline std::string parse(value &out, const std::string &s) {
+ std::string err;
+ parse(out, s.begin(), s.end(), &err);
+ return err;
+}
+
+inline std::string parse(value &out, std::istream &is) {
std::string err;
parse(out, std::istreambuf_iterator<char>(is.rdbuf()), std::istreambuf_iterator<char>(), &err);
return err;
template <typename T>
std::string last_error_t<T>::s;
-inline void set_last_error(const std::string& s) {
+inline void set_last_error(const std::string &s) {
last_error_t<bool>::s = s;
}
-inline const std::string& get_last_error() {
+inline const std::string &get_last_error() {
return last_error_t<bool>::s;
}
-inline bool operator==(const value& x, const value& y) {
+inline bool operator==(const value &x, const value &y) {
if (x.is<null>()) return y.is<null>();
#define PICOJSON_CMP(type) \
if (x.is<type>()) return y.is<type>() && x.get<type>() == y.get<type>()
return false;
}
-inline bool operator!=(const value& x, const value& y) {
+inline bool operator!=(const value &x, const value &y) {
return !(x == y);
}
}
+#if !PICOJSON_USE_RVALUE_REFERENCE
namespace std {
template <>
-inline void swap(picojson::value& x, picojson::value& y) {
+inline void swap(picojson::value &x, picojson::value &y) {
x.swap(y);
}
}
+#endif
-inline std::istream& operator>>(std::istream& is, picojson::value& x) {
+inline std::istream &operator>>(std::istream &is, picojson::value &x) {
picojson::set_last_error(std::string());
- std::string err = picojson::parse(x, is);
+ const std::string err(picojson::parse(x, is));
if (!err.empty()) {
picojson::set_last_error(err);
is.setstate(std::ios::failbit);
return is;
}
-inline std::ostream& operator<<(std::ostream& os, const picojson::value& x) {
+inline std::ostream &operator<<(std::ostream &os, const picojson::value &x) {
x.serialize(std::ostream_iterator<char>(os));
return os;
}
#endif
#endif
-#ifdef TEST_PICOJSON
-#ifdef _MSC_VER
-#pragma warning(disable : 4127) // conditional expression is constant
-#endif
-
-using namespace std;
-
-static void plan(int num) {
- printf("1..%d\n", num);
-}
-
-static bool success = true;
-
-static void ok(bool b, const char* name = "") {
- static int n = 1;
- if (!b) success = false;
- printf("%s %d - %s\n", b ? "ok" : "ng", n++, name);
-}
-
-template <typename T>
-void is(const T& x, const T& y, const char* name = "") {
- if (x == y) {
- ok(true, name);
- } else {
- ok(false, name);
- }
-}
-
-#include <float.h>
-#include <limits.h>
-#include <algorithm>
-#include <sstream>
-
-int main(void) {
- plan(85);
-
-// constructors
-#define TEST(expr, expected) \
- is(picojson::value expr.serialize(), string(expected), "picojson::value" #expr)
-
- TEST((true), "true");
- TEST((false), "false");
- TEST((42.0), "42");
- TEST((string("hello")), "\"hello\"");
- TEST(("hello"), "\"hello\"");
- TEST(("hello", 4), "\"hell\"");
-
- {
- double a = 1;
- for (int i = 0; i < 1024; i++) {
- picojson::value vi(a);
- std::stringstream ss;
- ss << vi;
- picojson::value vo;
- ss >> vo;
- double b = vo.get<double>();
- if ((i < 53 && a != b) || fabs(a - b) / b > 1e-8) {
- printf("ng i=%d a=%.18e b=%.18e\n", i, a, b);
- }
- a *= 2;
- }
- }
-
-#undef TEST
-
-#define TEST(in, type, cmp, serialize_test) \
- { \
- picojson::value v; \
- const char* s = in; \
- string err = picojson::parse(v, s, s + strlen(s)); \
- ok(err.empty(), in " no error"); \
- ok(v.is<type>(), in " check type"); \
- is<type>(v.get<type>(), cmp, in " correct output"); \
- is(*s, '\0', in " read to eof"); \
- if (serialize_test) { \
- is(v.serialize(), string(in), in " serialize"); \
- } \
- }
- TEST("false", bool, false, true);
- TEST("true", bool, true, true);
- TEST("90.5", double, 90.5, false);
- TEST("1.7976931348623157e+308", double, DBL_MAX, false);
- TEST("\"hello\"", string, string("hello"), true);
- TEST("\"\\\"\\\\\\/\\b\\f\\n\\r\\t\"", string, string("\"\\/\b\f\n\r\t"), true);
- TEST("\"\\u0061\\u30af\\u30ea\\u30b9\"", string, string("a\xe3\x82\xaf\xe3\x83\xaa\xe3\x82\xb9"),
- false);
- TEST("\"\\ud840\\udc0b\"", string, string("\xf0\xa0\x80\x8b"), false);
-#undef TEST
-
-#define TEST(type, expr) \
- { \
- picojson::value v; \
- const char* s = expr; \
- string err = picojson::parse(v, s, s + strlen(s)); \
- ok(err.empty(), "empty " #type " no error"); \
- ok(v.is<picojson::type>(), "empty " #type " check type"); \
- ok(v.get<picojson::type>().empty(), "check " #type " array size"); \
- }
- TEST(array, "[]");
- TEST(object, "{}");
-#undef TEST
-
- {
- picojson::value v;
- const char* s = "[1,true,\"hello\"]";
- string err = picojson::parse(v, s, s + strlen(s));
- ok(err.empty(), "array no error");
- ok(v.is<picojson::array>(), "array check type");
- is(v.get<picojson::array>().size(), size_t(3), "check array size");
- ok(v.contains(0), "check contains array[0]");
- ok(v.get(0).is<double>(), "check array[0] type");
- is(v.get(0).get<double>(), 1.0, "check array[0] value");
- ok(v.contains(1), "check contains array[1]");
- ok(v.get(1).is<bool>(), "check array[1] type");
- ok(v.get(1).get<bool>(), "check array[1] value");
- ok(v.contains(2), "check contains array[2]");
- ok(v.get(2).is<string>(), "check array[2] type");
- is(v.get(2).get<string>(), string("hello"), "check array[2] value");
- ok(!v.contains(3), "check not contains array[3]");
- }
-
- {
- picojson::value v;
- const char* s = "{ \"a\": true }";
- string err = picojson::parse(v, s, s + strlen(s));
- ok(err.empty(), "object no error");
- ok(v.is<picojson::object>(), "object check type");
- is(v.get<picojson::object>().size(), size_t(1), "check object size");
- ok(v.contains("a"), "check contains property");
- ok(v.get("a").is<bool>(), "check bool property exists");
- is(v.get("a").get<bool>(), true, "check bool property value");
- is(v.serialize(), string("{\"a\":true}"), "serialize object");
- ok(!v.contains("z"), "check not contains property");
- }
-
-#define TEST(json, msg) \
- do { \
- picojson::value v; \
- const char* s = json; \
- string err = picojson::parse(v, s, s + strlen(s)); \
- is(err, string("syntax error at line " msg), msg); \
- } while (0)
- TEST("falsoa", "1 near: oa");
- TEST("{]", "1 near: ]");
- TEST("\n\bbell", "2 near: bell");
- TEST("\"abc\nd\"", "1 near: ");
-#undef TEST
-
- {
- picojson::value v1, v2;
- const char* s;
- string err;
- s = "{ \"b\": true, \"a\": [1,2,\"three\"], \"d\": 2 }";
- err = picojson::parse(v1, s, s + strlen(s));
- s = "{ \"d\": 2.0, \"b\": true, \"a\": [1,2,\"three\"] }";
- err = picojson::parse(v2, s, s + strlen(s));
- ok((v1 == v2), "check == operator in deep comparison");
- }
-
- {
- picojson::value v1, v2;
- const char* s;
- string err;
- s = "{ \"b\": true, \"a\": [1,2,\"three\"], \"d\": 2 }";
- err = picojson::parse(v1, s, s + strlen(s));
- s = "{ \"d\": 2.0, \"a\": [1,\"three\"], \"b\": true }";
- err = picojson::parse(v2, s, s + strlen(s));
- ok((v1 != v2), "check != operator for array in deep comparison");
- }
-
- {
- picojson::value v1, v2;
- const char* s;
- string err;
- s = "{ \"b\": true, \"a\": [1,2,\"three\"], \"d\": 2 }";
- err = picojson::parse(v1, s, s + strlen(s));
- s = "{ \"d\": 2.0, \"a\": [1,2,\"three\"], \"b\": false }";
- err = picojson::parse(v2, s, s + strlen(s));
- ok((v1 != v2), "check != operator for object in deep comparison");
- }
-
- {
- picojson::value v1, v2;
- const char* s;
- string err;
- s = "{ \"b\": true, \"a\": [1,2,\"three\"], \"d\": 2 }";
- err = picojson::parse(v1, s, s + strlen(s));
- picojson::object& o = v1.get<picojson::object>();
- o.erase("b");
- picojson::array& a = o["a"].get<picojson::array>();
- picojson::array::iterator i;
- i = std::remove(a.begin(), a.end(), picojson::value(std::string("three")));
- a.erase(i, a.end());
- s = "{ \"a\": [1,2], \"d\": 2 }";
- err = picojson::parse(v2, s, s + strlen(s));
- ok((v1 == v2), "check erase()");
- }
-
- ok(picojson::value(3.0).serialize() == "3", "integral number should be serialized as a integer");
-
- {
- const char* s = "{ \"a\": [1,2], \"d\": 2 }";
- picojson::null_parse_context ctx;
- string err;
- picojson::_parse(ctx, s, s + strlen(s), &err);
- ok(err.empty(), "null_parse_context");
- }
-
- {
- picojson::value v1, v2;
- v1 = picojson::value(true);
- swap(v1, v2);
- ok(v1.is<picojson::null>(), "swap (null)");
- ok(v2.get<bool>() == true, "swap (bool)");
-
- v1 = picojson::value("a");
- v2 = picojson::value(1.0);
- swap(v1, v2);
- ok(v1.get<double>() == 1.0, "swap (dobule)");
- ok(v2.get<string>() == "a", "swap (string)");
-
- v1 = picojson::value(picojson::object());
- v2 = picojson::value(picojson::array());
- swap(v1, v2);
- ok(v1.is<picojson::array>(), "swap (array)");
- ok(v2.is<picojson::object>(), "swap (object)");
- }
-
- return success ? 0 : 1;
-}
-
-#endif