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-rw-r--r--src/rgw/picojson/picojson.h1177
1 files changed, 1177 insertions, 0 deletions
diff --git a/src/rgw/picojson/picojson.h b/src/rgw/picojson/picojson.h
new file mode 100644
index 000000000..ceaeb5ba8
--- /dev/null
+++ b/src/rgw/picojson/picojson.h
@@ -0,0 +1,1177 @@
+/*
+ * Copyright 2009-2010 Cybozu Labs, Inc.
+ * 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 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 <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <cstddef>
+#include <iostream>
+#include <iterator>
+#include <limits>
+#include <map>
+#include <stdexcept>
+#include <string>
+#include <vector>
+#include <utility>
+
+// 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 <cerrno>
+#if __cplusplus >= 201103L
+#include <cinttypes>
+#else
+extern "C" {
+#include <inttypes.h>
+}
+#endif
+#endif
+
+// to disable the use of localeconv(3), set PICOJSON_USE_LOCALE to 0
+#ifndef PICOJSON_USE_LOCALE
+#define PICOJSON_USE_LOCALE 1
+#endif
+#if PICOJSON_USE_LOCALE
+extern "C" {
+#include <locale.h>
+}
+#endif
+
+#ifndef PICOJSON_ASSERT
+#define PICOJSON_ASSERT(e) \
+ do { \
+ if (!(e)) \
+ throw std::runtime_error(#e); \
+ } while (0)
+#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
+#ifdef PICOJSON_USE_INT64
+ ,
+ int64_type
+#endif
+};
+
+enum { INDENT_WIDTH = 2 };
+
+struct null {};
+
+class value {
+public:
+ typedef std::vector<value> array;
+ typedef std::map<std::string, value> object;
+ union _storage {
+ bool boolean_;
+ double number_;
+#ifdef PICOJSON_USE_INT64
+ int64_t int64_;
+#endif
+ std::string *string_;
+ array *array_;
+ object *object_;
+ };
+
+protected:
+ int type_;
+ _storage u_;
+
+public:
+ 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);
+#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);
+#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;
+ template <typename T> T &get();
+ template <typename T> void set(const T &);
+#if PICOJSON_USE_RVALUE_REFERENCE
+ template <typename T> void set(T &&);
+#endif
+ bool evaluate_as_boolean() 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, 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
+ 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), u_() {
+}
+
+inline value::value(int type, bool) : type_(type), u_() {
+ switch (type) {
+#define INIT(p, v) \
+ case p##type: \
+ u_.p = v; \
+ 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());
+#undef INIT
+ default:
+ break;
+ }
+}
+
+inline value::value(bool b) : type_(boolean_type), u_() {
+ u_.boolean_ = b;
+}
+
+#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), u_() {
+ u_.string_ = new std::string(s);
+}
+
+inline value::value(const array &a) : type_(array_type), u_() {
+ u_.array_ = new array(a);
+}
+
+inline value::value(const object &o) : type_(object_type), u_() {
+ u_.object_ = new object(o);
+}
+
+#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), u_() {
+ u_.string_ = new std::string(s, len);
+}
+
+inline void value::clear() {
+ switch (type_) {
+#define DEINIT(p) \
+ case p##type: \
+ delete u_.p; \
+ break
+ DEINIT(string_);
+ DEINIT(array_);
+ DEINIT(object_);
+#undef DEINIT
+ default:
+ break;
+ }
+}
+
+inline value::~value() {
+ clear();
+}
+
+inline value::value(const value &x) : type_(x.type_), u_() {
+ switch (type_) {
+#define INIT(p, v) \
+ case p##type: \
+ u_.p = v; \
+ break
+ INIT(string_, new std::string(*x.u_.string_));
+ INIT(array_, new array(*x.u_.array_));
+ INIT(object_, new object(*x.u_.object_));
+#undef INIT
+ default:
+ u_ = x.u_;
+ break;
+ }
+}
+
+inline value &value::operator=(const value &x) {
+ if (this != &x) {
+ value t(x);
+ swap(t);
+ }
+ return *this;
+}
+
+#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_);
+}
+
+#define IS(ctype, jtype) \
+ template <> inline bool value::is<ctype>() const { \
+ return type_ == jtype##_type; \
+ }
+IS(null, null)
+IS(bool, boolean)
+#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 { \
+ PICOJSON_ASSERT("type mismatch! call is<type>() before get<type>()" && is<ctype>()); \
+ return var; \
+ } \
+ template <> inline ctype &value::get<ctype>() { \
+ PICOJSON_ASSERT("type mismatch! call is<type>() before get<type>()" && is<ctype>()); \
+ return var; \
+ }
+GET(bool, u_.boolean_)
+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 false;
+ case boolean_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:
+ return true;
+ }
+}
+
+inline const value &value::get(const size_t idx) const {
+ static value s_null;
+ PICOJSON_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;
+ PICOJSON_ASSERT(is<array>());
+ return idx < u_.array_->size() ? (*u_.array_)[idx] : s_null;
+}
+
+inline const value &value::get(const std::string &key) const {
+ static value s_null;
+ PICOJSON_ASSERT(is<object>());
+ object::const_iterator i = u_.object_->find(key);
+ return i != u_.object_->end() ? i->second : s_null;
+}
+
+inline value &value::get(const std::string &key) {
+ static value s_null;
+ PICOJSON_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 {
+ PICOJSON_ASSERT(is<array>());
+ return idx < u_.array_->size();
+}
+
+inline bool value::contains(const std::string &key) const {
+ PICOJSON_ASSERT(is<object>());
+ object::const_iterator i = u_.object_->find(key);
+ return i != u_.object_->end();
+}
+
+inline std::string value::to_str() const {
+ switch (type_) {
+ case null_type:
+ 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: {
+ char buf[256];
+ double tmp;
+ SNPRINTF(buf, sizeof(buf), fabs(u_.number_) < (1ULL << 53) && modf(u_.number_, &tmp) == 0 ? "%.f" : "%.17g", u_.number_);
+#if PICOJSON_USE_LOCALE
+ char *decimal_point = localeconv()->decimal_point;
+ if (strcmp(decimal_point, ".") != 0) {
+ size_t decimal_point_len = strlen(decimal_point);
+ for (char *p = buf; *p != '\0'; ++p) {
+ if (strncmp(p, decimal_point, decimal_point_len) == 0) {
+ return std::string(buf, p) + "." + (p + decimal_point_len);
+ }
+ }
+ }
+#endif
+ return buf;
+ }
+ case string_type:
+ return *u_.string_;
+ case array_type:
+ return "array";
+ case object_type:
+ return "object";
+ default:
+ PICOJSON_ASSERT(0);
+#ifdef _MSC_VER
+ __assume(0);
+#endif
+ }
+ return std::string();
+}
+
+template <typename Iter> void copy(const std::string &s, Iter oi) {
+ std::copy(s.begin(), s.end(), oi);
+}
+
+template <typename Iter> struct serialize_str_char {
+ Iter oi;
+ void operator()(char c) {
+ switch (c) {
+#define MAP(val, sym) \
+ case val: \
+ copy(sym, oi); \
+ break
+ MAP('"', "\\\"");
+ MAP('\\', "\\\\");
+ MAP('/', "\\/");
+ MAP('\b', "\\b");
+ MAP('\f', "\\f");
+ MAP('\n', "\\n");
+ MAP('\r', "\\r");
+ MAP('\t', "\\t");
+#undef MAP
+ default:
+ if (static_cast<unsigned char>(c) < 0x20 || c == 0x7f) {
+ char buf[7];
+ SNPRINTF(buf, sizeof(buf), "\\u%04x", c & 0xff);
+ copy(buf, buf + 6, oi);
+ } else {
+ *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, 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++ = ',';
+ }
+ 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++ = ':';
+ if (indent != -1) {
+ *oi++ = ' ';
+ }
+ i->second._serialize(oi, indent);
+ }
+ if (indent != -1) {
+ --indent;
+ if (!u_.object_->empty()) {
+ _indent(oi, indent);
+ }
+ }
+ *oi++ = '}';
+ break;
+ }
+ default:
+ copy(to_str(), oi);
+ break;
+ }
+ if (indent == 0) {
+ *oi++ = '\n';
+ }
+}
+
+inline std::string value::_serialize(int indent) const {
+ std::string s;
+ _serialize(std::back_inserter(s), indent);
+ return s;
+}
+
+template <typename Iter> class input {
+protected:
+ Iter cur_, end_;
+ bool consumed_;
+ int line_;
+
+public:
+ input(const Iter &first, const Iter &last) : cur_(first), end_(last), consumed_(false), line_(1) {
+ }
+ int getc() {
+ if (consumed_) {
+ if (*cur_ == '\n') {
+ ++line_;
+ }
+ ++cur_;
+ }
+ if (cur_ == end_) {
+ consumed_ = false;
+ return -1;
+ }
+ consumed_ = true;
+ return *cur_ & 0xff;
+ }
+ void ungetc() {
+ 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 {
+ return line_;
+ }
+ void skip_ws() {
+ while (1) {
+ int ch = getc();
+ if (!(ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r')) {
+ ungetc();
+ break;
+ }
+ }
+ }
+ bool picojson_expect(const int expected) {
+ skip_ws();
+ if (getc() != expected) {
+ ungetc();
+ return false;
+ }
+ return true;
+ }
+ bool match(const std::string &pattern) {
+ for (std::string::const_iterator pi(pattern.begin()); pi != pattern.end(); ++pi) {
+ if (getc() != *pi) {
+ ungetc();
+ return false;
+ }
+ }
+ return true;
+ }
+};
+
+template <typename Iter> inline int _parse_quadhex(input<Iter> &in) {
+ int uni_ch = 0, hex;
+ for (int i = 0; i < 4; i++) {
+ if ((hex = in.getc()) == -1) {
+ return -1;
+ }
+ if ('0' <= hex && hex <= '9') {
+ hex -= '0';
+ } else if ('A' <= hex && hex <= 'F') {
+ hex -= 'A' - 0xa;
+ } else if ('a' <= hex && hex <= 'f') {
+ hex -= 'a' - 0xa;
+ } else {
+ in.ungetc();
+ return -1;
+ }
+ uni_ch = uni_ch * 16 + hex;
+ }
+ return uni_ch;
+}
+
+template <typename String, typename Iter> inline bool _parse_codepoint(String &out, input<Iter> &in) {
+ int uni_ch;
+ if ((uni_ch = _parse_quadhex(in)) == -1) {
+ return false;
+ }
+ if (0xd800 <= uni_ch && uni_ch <= 0xdfff) {
+ if (0xdc00 <= uni_ch) {
+ // a second 16-bit of a surrogate pair appeared
+ return false;
+ }
+ // first 16-bit of surrogate pair, get the next one
+ if (in.getc() != '\\' || in.getc() != 'u') {
+ in.ungetc();
+ return false;
+ }
+ int second = _parse_quadhex(in);
+ if (!(0xdc00 <= second && second <= 0xdfff)) {
+ return false;
+ }
+ uni_ch = ((uni_ch - 0xd800) << 10) | ((second - 0xdc00) & 0x3ff);
+ uni_ch += 0x10000;
+ }
+ if (uni_ch < 0x80) {
+ out.push_back(static_cast<char>(uni_ch));
+ } else {
+ if (uni_ch < 0x800) {
+ out.push_back(static_cast<char>(0xc0 | (uni_ch >> 6)));
+ } else {
+ if (uni_ch < 0x10000) {
+ out.push_back(static_cast<char>(0xe0 | (uni_ch >> 12)));
+ } else {
+ out.push_back(static_cast<char>(0xf0 | (uni_ch >> 18)));
+ out.push_back(static_cast<char>(0x80 | ((uni_ch >> 12) & 0x3f)));
+ }
+ out.push_back(static_cast<char>(0x80 | ((uni_ch >> 6) & 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) {
+ while (1) {
+ int ch = in.getc();
+ if (ch < ' ') {
+ in.ungetc();
+ return false;
+ } else if (ch == '"') {
+ return true;
+ } else if (ch == '\\') {
+ if ((ch = in.getc()) == -1) {
+ return false;
+ }
+ switch (ch) {
+#define MAP(sym, val) \
+ case sym: \
+ out.push_back(val); \
+ break
+ MAP('"', '\"');
+ MAP('\\', '\\');
+ MAP('/', '/');
+ MAP('b', '\b');
+ MAP('f', '\f');
+ MAP('n', '\n');
+ MAP('r', '\r');
+ MAP('t', '\t');
+#undef MAP
+ case 'u':
+ if (!_parse_codepoint(out, in)) {
+ return false;
+ }
+ break;
+ default:
+ return false;
+ }
+ } else {
+ out.push_back(static_cast<char>(ch));
+ }
+ }
+ return false;
+}
+
+template <typename Context, typename Iter> inline bool _parse_array(Context &ctx, input<Iter> &in) {
+ if (!ctx.parse_array_start()) {
+ return false;
+ }
+ size_t idx = 0;
+ if (in.picojson_expect(']')) {
+ return ctx.parse_array_stop(idx);
+ }
+ do {
+ if (!ctx.parse_array_item(in, idx)) {
+ return false;
+ }
+ idx++;
+ } while (in.picojson_expect(','));
+ return in.picojson_expect(']') && ctx.parse_array_stop(idx);
+}
+
+template <typename Context, typename Iter> inline bool _parse_object(Context &ctx, input<Iter> &in) {
+ if (!ctx.parse_object_start()) {
+ return false;
+ }
+ if (in.picojson_expect('}')) {
+ return true;
+ }
+ do {
+ std::string key;
+ if (!in.picojson_expect('"') || !_parse_string(key, in) || !in.picojson_expect(':')) {
+ return false;
+ }
+ if (!ctx.parse_object_item(in, key)) {
+ return false;
+ }
+ } while (in.picojson_expect(','));
+ return in.picojson_expect('}');
+}
+
+template <typename Iter> inline std::string _parse_number(input<Iter> &in) {
+ std::string num_str;
+ while (1) {
+ int ch = in.getc();
+ if (('0' <= ch && ch <= '9') || ch == '+' || ch == '-' || ch == 'e' || ch == 'E') {
+ num_str.push_back(static_cast<char>(ch));
+ } else if (ch == '.') {
+#if PICOJSON_USE_LOCALE
+ num_str += localeconv()->decimal_point;
+#else
+ num_str.push_back('.');
+#endif
+ } else {
+ in.ungetc();
+ break;
+ }
+ }
+ return num_str;
+}
+
+template <typename Context, typename Iter> inline bool _parse(Context &ctx, input<Iter> &in) {
+ in.skip_ws();
+ int ch = in.getc();
+ switch (ch) {
+#define IS(ch, text, op) \
+ case ch: \
+ if (in.match(text) && op) { \
+ return true; \
+ } else { \
+ return false; \
+ }
+ IS('n', "ull", ctx.set_null());
+ IS('f', "alse", ctx.set_bool(false));
+ IS('t', "rue", ctx.set_bool(true));
+#undef IS
+ case '"':
+ return ctx.parse_string(in);
+ case '[':
+ return _parse_array(ctx, in);
+ case '{':
+ return _parse_object(ctx, in);
+ default:
+ if (('0' <= ch && ch <= '9') || ch == '-') {
+ double f;
+ char *endp;
+ in.ungetc();
+ std::string num_str(_parse_number(in));
+ if (num_str.empty()) {
+ return false;
+ }
+#ifdef PICOJSON_USE_INT64
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wtautological-type-limit-compare"
+ {
+ 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;
+ }
+ }
+#pragma clang diagnostic pop
+#endif
+ f = strtod(num_str.c_str(), &endp);
+ if (endp == num_str.c_str() + num_str.size()) {
+ ctx.set_number(f);
+ return true;
+ }
+ return false;
+ }
+ break;
+ }
+ in.ungetc();
+ return false;
+}
+
+class deny_parse_context {
+public:
+ bool set_null() {
+ return false;
+ }
+ 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> &) {
+ return false;
+ }
+ bool parse_array_start() {
+ return false;
+ }
+ template <typename Iter> 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 &) {
+ return false;
+ }
+};
+
+class default_parse_context {
+protected:
+ value *out_;
+
+public:
+ default_parse_context(value *out) : out_(out) {
+ }
+ bool set_null() {
+ *out_ = value();
+ return true;
+ }
+ bool set_bool(bool b) {
+ *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) {
+ *out_ = value(string_type, false);
+ return _parse_string(out_->get<std::string>(), in);
+ }
+ bool parse_array_start() {
+ *out_ = value(array_type, false);
+ return true;
+ }
+ template <typename Iter> 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>();
+ 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 &);
+};
+
+class null_parse_context {
+public:
+ struct dummy_str {
+ void push_back(int) {
+ }
+ };
+
+public:
+ null_parse_context() {
+ }
+ bool set_null() {
+ return true;
+ }
+ 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) {
+ dummy_str s;
+ return _parse_string(s, in);
+ }
+ bool parse_array_start() {
+ return true;
+ }
+ template <typename Iter> 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 &) {
+ return _parse(*this, in);
+ }
+
+private:
+ 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) {
+ 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) {
+ input<Iter> in(first, last);
+ if (!_parse(ctx, in) && err != NULL) {
+ char buf[64];
+ SNPRINTF(buf, sizeof(buf), "syntax error at line %d near: ", in.line());
+ *err = buf;
+ while (1) {
+ int ch = in.getc();
+ if (ch == -1 || ch == '\n') {
+ break;
+ } else if (ch >= ' ') {
+ err->push_back(static_cast<char>(ch));
+ }
+ }
+ }
+ return in.cur();
+}
+
+template <typename Iter> 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, 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> struct last_error_t { static std::string s; };
+template <typename T> std::string last_error_t<T>::s;
+
+inline void set_last_error(const std::string &s) {
+ last_error_t<bool>::s = s;
+}
+
+inline const std::string &get_last_error() {
+ return last_error_t<bool>::s;
+}
+
+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>()
+ PICOJSON_CMP(bool);
+ PICOJSON_CMP(double);
+ PICOJSON_CMP(std::string);
+ PICOJSON_CMP(array);
+ PICOJSON_CMP(object);
+#undef PICOJSON_CMP
+ PICOJSON_ASSERT(0);
+#ifdef _MSC_VER
+ __assume(0);
+#endif
+ return false;
+}
+
+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) {
+ x.swap(y);
+}
+}
+#endif
+
+inline std::istream &operator>>(std::istream &is, picojson::value &x) {
+ picojson::set_last_error(std::string());
+ 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) {
+ x.serialize(std::ostream_iterator<char>(os));
+ return os;
+}
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 16:31:14 +0000