xudong song / picojson

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picojson.h@2:60535e1b4660, 2019-02-28 (annotated)

Committer:
tesla_xudong
Date:
Thu Feb 28 00:22:20 2019 +0000
Revision:
2:60535e1b4660
Parent:
1:2bb500b021e2 
Xc

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mimil 0:7bd1a48945f5 1 /* Copyright 2009 Cybozu Labs, Inc.
mimil 0:7bd1a48945f5 2 *
mimil 0:7bd1a48945f5 3 * Redistribution and use in source and binary forms, with or without
mimil 0:7bd1a48945f5 4 * modification, are permitted provided that the following conditions are met:
mimil 0:7bd1a48945f5 5 *
mimil 0:7bd1a48945f5 6 * 1. Redistributions of source code must retain the above copyright notice,
mimil 0:7bd1a48945f5 7 * this list of conditions and the following disclaimer.
mimil 0:7bd1a48945f5 8 * 2. Redistributions in binary form must reproduce the above copyright notice,
mimil 0:7bd1a48945f5 9 * this list of conditions and the following disclaimer in the documentation
mimil 0:7bd1a48945f5 10 * and/or other materials provided with the distribution.
mimil 0:7bd1a48945f5 11 *
mimil 0:7bd1a48945f5 12 * THIS SOFTWARE IS PROVIDED BY CYBOZU LABS, INC. ``AS IS'' AND ANY EXPRESS OR
mimil 0:7bd1a48945f5 13 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
mimil 0:7bd1a48945f5 14 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
mimil 0:7bd1a48945f5 15 * EVENT SHALL CYBOZU LABS, INC. OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
mimil 0:7bd1a48945f5 16 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
mimil 0:7bd1a48945f5 17 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
mimil 0:7bd1a48945f5 18 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
mimil 0:7bd1a48945f5 19 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
mimil 0:7bd1a48945f5 20 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
mimil 0:7bd1a48945f5 21 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mimil 0:7bd1a48945f5 22 *
mimil 0:7bd1a48945f5 23 * The views and conclusions contained in the software and documentation are
mimil 0:7bd1a48945f5 24 * those of the authors and should not be interpreted as representing official
mimil 0:7bd1a48945f5 25 * policies, either expressed or implied, of Cybozu Labs, Inc.
mimil 0:7bd1a48945f5 26 *
mimil 0:7bd1a48945f5 27 */
mimil 0:7bd1a48945f5 28 #ifndef picojson_h
mimil 0:7bd1a48945f5 29 #define picojson_h
mimil 0:7bd1a48945f5 30
mimil 0:7bd1a48945f5 31 #include <cassert>
mimil 1:2bb500b021e2 32 #include <cmath>
mimil 0:7bd1a48945f5 33 #include <cstdio>
mimil 0:7bd1a48945f5 34 #include <cstdlib>
mimil 0:7bd1a48945f5 35 #include <cstring>
mimil 0:7bd1a48945f5 36 #include <iostream>
mimil 0:7bd1a48945f5 37 #include <iterator>
mimil 0:7bd1a48945f5 38 #include <map>
mimil 0:7bd1a48945f5 39 #include <string>
mimil 0:7bd1a48945f5 40 #include <vector>
mimil 0:7bd1a48945f5 41
mimil 0:7bd1a48945f5 42 #ifdef _MSC_VER
mimil 0:7bd1a48945f5 43 #define SNPRINTF _snprintf_s
mimil 0:7bd1a48945f5 44 #pragma warning(push)
mimil 0:7bd1a48945f5 45 #pragma warning(disable : 4244) // conversion from int to char
mimil 0:7bd1a48945f5 46 #else
mimil 0:7bd1a48945f5 47 #define SNPRINTF snprintf
mimil 0:7bd1a48945f5 48 #endif
mimil 0:7bd1a48945f5 49
mimil 0:7bd1a48945f5 50 namespace picojson {
mimil 0:7bd1a48945f5 51
mimil 0:7bd1a48945f5 52 enum {
mimil 0:7bd1a48945f5 53 null_type,
mimil 0:7bd1a48945f5 54 boolean_type,
mimil 0:7bd1a48945f5 55 number_type,
mimil 0:7bd1a48945f5 56 string_type,
mimil 0:7bd1a48945f5 57 array_type,
mimil 0:7bd1a48945f5 58 object_type
mimil 0:7bd1a48945f5 59 };
mimil 0:7bd1a48945f5 60
mimil 0:7bd1a48945f5 61 struct null {};
mimil 0:7bd1a48945f5 62
mimil 0:7bd1a48945f5 63 class value {
mimil 0:7bd1a48945f5 64 public:
mimil 0:7bd1a48945f5 65 typedef std::vector<value> array;
mimil 0:7bd1a48945f5 66 typedef std::map<std::string, value> object;
mimil 0:7bd1a48945f5 67 protected:
mimil 0:7bd1a48945f5 68 int type_;
mimil 0:7bd1a48945f5 69 union {
mimil 0:7bd1a48945f5 70 bool boolean_;
mimil 0:7bd1a48945f5 71 double number_;
mimil 0:7bd1a48945f5 72 std::string* string_;
mimil 0:7bd1a48945f5 73 array* array_;
mimil 0:7bd1a48945f5 74 object* object_;
mimil 0:7bd1a48945f5 75 };
mimil 0:7bd1a48945f5 76 public:
mimil 0:7bd1a48945f5 77 value();
mimil 0:7bd1a48945f5 78 value(int type, bool);
mimil 0:7bd1a48945f5 79 explicit value(bool b);
mimil 0:7bd1a48945f5 80 explicit value(double n);
mimil 0:7bd1a48945f5 81 explicit value(const std::string& s);
mimil 0:7bd1a48945f5 82 explicit value(const array& a);
mimil 0:7bd1a48945f5 83 explicit value(const object& o);
mimil 0:7bd1a48945f5 84 ~value();
mimil 0:7bd1a48945f5 85 value(const value& x);
mimil 0:7bd1a48945f5 86 value& operator=(const value& x);
mimil 0:7bd1a48945f5 87 template <typename T> bool is() const;
mimil 0:7bd1a48945f5 88 template <typename T> const T& get() const;
mimil 0:7bd1a48945f5 89 template <typename T> T& get();
mimil 0:7bd1a48945f5 90 operator bool() const;
mimil 0:7bd1a48945f5 91 const value& get(size_t idx) const;
mimil 0:7bd1a48945f5 92 const value& get(const std::string& key) const;
mimil 0:7bd1a48945f5 93 std::string to_str() const;
mimil 0:7bd1a48945f5 94 template <typename Iter> void serialize(Iter os) const;
mimil 0:7bd1a48945f5 95 std::string serialize() const;
mimil 0:7bd1a48945f5 96 };
mimil 0:7bd1a48945f5 97
mimil 0:7bd1a48945f5 98 typedef value::array array;
mimil 0:7bd1a48945f5 99 typedef value::object object;
mimil 0:7bd1a48945f5 100
mimil 0:7bd1a48945f5 101 inline value::value() : type_(null_type) {}
mimil 0:7bd1a48945f5 102
mimil 0:7bd1a48945f5 103 inline value::value(int type, bool) : type_(type) {
mimil 0:7bd1a48945f5 104 switch (type) {
mimil 0:7bd1a48945f5 105 #define INIT(p, v) case p##type: p = v; break
mimil 0:7bd1a48945f5 106 INIT(boolean_, false);
mimil 0:7bd1a48945f5 107 INIT(number_, 0.0);
mimil 0:7bd1a48945f5 108 INIT(string_, new std::string());
mimil 0:7bd1a48945f5 109 INIT(array_, new array());
mimil 0:7bd1a48945f5 110 INIT(object_, new object());
mimil 0:7bd1a48945f5 111 #undef INIT
mimil 0:7bd1a48945f5 112 default: break;
mimil 0:7bd1a48945f5 113 }
mimil 0:7bd1a48945f5 114 }
mimil 0:7bd1a48945f5 115
mimil 0:7bd1a48945f5 116 inline value::value(bool b) : type_(boolean_type) {
mimil 0:7bd1a48945f5 117 boolean_ = b;
mimil 0:7bd1a48945f5 118 }
mimil 0:7bd1a48945f5 119
mimil 0:7bd1a48945f5 120 inline value::value(double n) : type_(number_type) {
mimil 0:7bd1a48945f5 121 number_ = n;
mimil 0:7bd1a48945f5 122 }
mimil 0:7bd1a48945f5 123
mimil 0:7bd1a48945f5 124 inline value::value(const std::string& s) : type_(string_type) {
mimil 0:7bd1a48945f5 125 string_ = new std::string(s);
mimil 0:7bd1a48945f5 126 }
mimil 0:7bd1a48945f5 127
mimil 0:7bd1a48945f5 128 inline value::value(const array& a) : type_(array_type) {
mimil 0:7bd1a48945f5 129 array_ = new array(a);
mimil 0:7bd1a48945f5 130 }
mimil 0:7bd1a48945f5 131
mimil 0:7bd1a48945f5 132 inline value::value(const object& o) : type_(object_type) {
mimil 0:7bd1a48945f5 133 object_ = new object(o);
mimil 0:7bd1a48945f5 134 }
mimil 0:7bd1a48945f5 135
mimil 0:7bd1a48945f5 136 inline value::~value() {
mimil 0:7bd1a48945f5 137 switch (type_) {
mimil 0:7bd1a48945f5 138 #define DEINIT(p) case p##type: delete p; break
mimil 0:7bd1a48945f5 139 DEINIT(string_);
mimil 0:7bd1a48945f5 140 DEINIT(array_);
mimil 0:7bd1a48945f5 141 DEINIT(object_);
mimil 0:7bd1a48945f5 142 #undef DEINIT
mimil 0:7bd1a48945f5 143 default: break;
mimil 0:7bd1a48945f5 144 }
mimil 0:7bd1a48945f5 145 }
mimil 0:7bd1a48945f5 146
mimil 0:7bd1a48945f5 147 inline value::value(const value& x) : type_(x.type_) {
mimil 0:7bd1a48945f5 148 switch (type_) {
mimil 0:7bd1a48945f5 149 #define INIT(p, v) case p##type: p = v; break
mimil 0:7bd1a48945f5 150 INIT(boolean_, x.boolean_);
mimil 0:7bd1a48945f5 151 INIT(number_, x.number_);
mimil 0:7bd1a48945f5 152 INIT(string_, new std::string(*x.string_));
mimil 0:7bd1a48945f5 153 INIT(array_, new array(*x.array_));
mimil 0:7bd1a48945f5 154 INIT(object_, new object(*x.object_));
mimil 0:7bd1a48945f5 155 #undef INIT
mimil 0:7bd1a48945f5 156 default: break;
mimil 0:7bd1a48945f5 157 }
mimil 0:7bd1a48945f5 158 }
mimil 0:7bd1a48945f5 159
mimil 0:7bd1a48945f5 160 inline value& value::operator=(const value& x) {
mimil 0:7bd1a48945f5 161 if (this != &x) {
mimil 0:7bd1a48945f5 162 this->~value();
mimil 0:7bd1a48945f5 163 new (this) value(x);
mimil 0:7bd1a48945f5 164 }
mimil 0:7bd1a48945f5 165 return *this;
mimil 0:7bd1a48945f5 166 }
mimil 0:7bd1a48945f5 167
mimil 1:2bb500b021e2 168 #define IS(ctype, jtype) \
mimil 0:7bd1a48945f5 169 template <> inline bool value::is<ctype>() const { \
mimil 1:2bb500b021e2 170 return type_ == jtype##_type; \
mimil 0:7bd1a48945f5 171 }
mimil 0:7bd1a48945f5 172 IS(null, null)
mimil 0:7bd1a48945f5 173 IS(bool, boolean)
mimil 0:7bd1a48945f5 174 IS(int, number)
mimil 0:7bd1a48945f5 175 IS(double, number)
mimil 0:7bd1a48945f5 176 IS(std::string, string)
mimil 0:7bd1a48945f5 177 IS(array, array)
mimil 0:7bd1a48945f5 178 IS(object, object)
mimil 0:7bd1a48945f5 179 #undef IS
mimil 0:7bd1a48945f5 180
mimil 1:2bb500b021e2 181 #define GET(ctype, var) \
mimil 0:7bd1a48945f5 182 template <> inline const ctype& value::get<ctype>() const { \
mimil 1:2bb500b021e2 183 return var; \
mimil 1:2bb500b021e2 184 } \
mimil 1:2bb500b021e2 185 template <> inline ctype& value::get<ctype>() { \
mimil 1:2bb500b021e2 186 return var; \
mimil 0:7bd1a48945f5 187 }
mimil 0:7bd1a48945f5 188 GET(bool, boolean_)
mimil 0:7bd1a48945f5 189 GET(double, number_)
mimil 0:7bd1a48945f5 190 GET(std::string, *string_)
mimil 0:7bd1a48945f5 191 GET(array, *array_)
mimil 0:7bd1a48945f5 192 GET(object, *object_)
mimil 0:7bd1a48945f5 193 #undef GET
mimil 0:7bd1a48945f5 194
mimil 0:7bd1a48945f5 195 inline value::operator bool() const {
mimil 0:7bd1a48945f5 196 switch (type_) {
mimil 0:7bd1a48945f5 197 case null_type:
mimil 0:7bd1a48945f5 198 return false;
mimil 0:7bd1a48945f5 199 case boolean_type:
mimil 0:7bd1a48945f5 200 return boolean_;
mimil 0:7bd1a48945f5 201 case number_type:
mimil 0:7bd1a48945f5 202 return number_ != 0;
mimil 0:7bd1a48945f5 203 case string_type:
mimil 0:7bd1a48945f5 204 return ! string_->empty();
mimil 0:7bd1a48945f5 205 default:
mimil 0:7bd1a48945f5 206 return true;
mimil 0:7bd1a48945f5 207 }
mimil 0:7bd1a48945f5 208 }
mimil 0:7bd1a48945f5 209
mimil 0:7bd1a48945f5 210 inline const value& value::get(size_t idx) const {
mimil 0:7bd1a48945f5 211 static value s_null;
mimil 0:7bd1a48945f5 212 assert(is<array>());
mimil 0:7bd1a48945f5 213 return idx < array_->size() ? (*array_)[idx] : s_null;
mimil 0:7bd1a48945f5 214 }
mimil 0:7bd1a48945f5 215
mimil 0:7bd1a48945f5 216 inline const value& value::get(const std::string& key) const {
mimil 0:7bd1a48945f5 217 static value s_null;
tesla_xudong 2:60535e1b4660 218 //assert(is<object>());
mimil 0:7bd1a48945f5 219 object::const_iterator i = object_->find(key);
mimil 0:7bd1a48945f5 220 return i != object_->end() ? i->second : s_null;
mimil 0:7bd1a48945f5 221 }
mimil 0:7bd1a48945f5 222
mimil 0:7bd1a48945f5 223 inline std::string value::to_str() const {
mimil 0:7bd1a48945f5 224 switch (type_) {
mimil 0:7bd1a48945f5 225 case null_type: return "null";
mimil 0:7bd1a48945f5 226 case boolean_type: return boolean_ ? "true" : "false";
mimil 0:7bd1a48945f5 227 case number_type: {
mimil 0:7bd1a48945f5 228 char buf[256];
mimil 1:2bb500b021e2 229 double tmp;
mimil 1:2bb500b021e2 230 SNPRINTF(buf, sizeof(buf), modf(number_, &tmp) == 0 ? "%.f" : "%f", number_);
mimil 0:7bd1a48945f5 231 return buf;
mimil 0:7bd1a48945f5 232 }
mimil 0:7bd1a48945f5 233 case string_type: return *string_;
mimil 0:7bd1a48945f5 234 case array_type: return "array";
mimil 0:7bd1a48945f5 235 case object_type: return "object";
mimil 0:7bd1a48945f5 236 default: assert(0);
mimil 0:7bd1a48945f5 237 #ifdef _MSC_VER
mimil 0:7bd1a48945f5 238 __assume(0);
mimil 0:7bd1a48945f5 239 #endif
mimil 0:7bd1a48945f5 240 }
tesla_xudong 2:60535e1b4660 241
mimil 0:7bd1a48945f5 242 }
mimil 0:7bd1a48945f5 243
mimil 0:7bd1a48945f5 244 template <typename Iter> void copy(const std::string& s, Iter oi) {
mimil 0:7bd1a48945f5 245 std::copy(s.begin(), s.end(), oi);
mimil 0:7bd1a48945f5 246 }
mimil 0:7bd1a48945f5 247
mimil 0:7bd1a48945f5 248 template <typename Iter> void serialize_str(const std::string& s, Iter oi) {
mimil 0:7bd1a48945f5 249 *oi++ = '"';
mimil 0:7bd1a48945f5 250 for (std::string::const_iterator i = s.begin(); i != s.end(); ++i) {
mimil 0:7bd1a48945f5 251 switch (*i) {
mimil 0:7bd1a48945f5 252 #define MAP(val, sym) case val: copy(sym, oi); break
mimil 1:2bb500b021e2 253 MAP('"', "\\\"");
mimil 1:2bb500b021e2 254 MAP('\\', "\\\\");
mimil 1:2bb500b021e2 255 MAP('/', "\\/");
mimil 1:2bb500b021e2 256 MAP('\b', "\\b");
mimil 1:2bb500b021e2 257 MAP('\f', "\\f");
mimil 1:2bb500b021e2 258 MAP('\n', "\\n");
mimil 1:2bb500b021e2 259 MAP('\r', "\\r");
mimil 1:2bb500b021e2 260 MAP('\t', "\\t");
mimil 0:7bd1a48945f5 261 #undef MAP
mimil 0:7bd1a48945f5 262 default:
mimil 1:2bb500b021e2 263 if ((unsigned char)*i < 0x20 || *i == 0x7f) {
mimil 1:2bb500b021e2 264 char buf[7];
mimil 1:2bb500b021e2 265 SNPRINTF(buf, sizeof(buf), "\\u%04x", *i & 0xff);
mimil 1:2bb500b021e2 266 copy(buf, buf + 6, oi);
mimil 1:2bb500b021e2 267 } else {
mimil 1:2bb500b021e2 268 *oi++ = *i;
mimil 1:2bb500b021e2 269 }
mimil 1:2bb500b021e2 270 break;
mimil 0:7bd1a48945f5 271 }
mimil 0:7bd1a48945f5 272 }
mimil 0:7bd1a48945f5 273 *oi++ = '"';
mimil 0:7bd1a48945f5 274 }
mimil 0:7bd1a48945f5 275
mimil 0:7bd1a48945f5 276 template <typename Iter> void value::serialize(Iter oi) const {
mimil 0:7bd1a48945f5 277 switch (type_) {
mimil 0:7bd1a48945f5 278 case string_type:
mimil 0:7bd1a48945f5 279 serialize_str(*string_, oi);
mimil 0:7bd1a48945f5 280 break;
mimil 0:7bd1a48945f5 281 case array_type: {
mimil 0:7bd1a48945f5 282 *oi++ = '[';
mimil 0:7bd1a48945f5 283 for (array::const_iterator i = array_->begin(); i != array_->end(); ++i) {
mimil 1:2bb500b021e2 284 if (i != array_->begin()) {
mimil 1:2bb500b021e2 285 *oi++ = ',';
mimil 1:2bb500b021e2 286 }
mimil 1:2bb500b021e2 287 i->serialize(oi);
mimil 0:7bd1a48945f5 288 }
mimil 0:7bd1a48945f5 289 *oi++ = ']';
mimil 0:7bd1a48945f5 290 break;
mimil 0:7bd1a48945f5 291 }
mimil 0:7bd1a48945f5 292 case object_type: {
mimil 0:7bd1a48945f5 293 *oi++ = '{';
mimil 0:7bd1a48945f5 294 for (object::const_iterator i = object_->begin();
mimil 1:2bb500b021e2 295 i != object_->end();
mimil 1:2bb500b021e2 296 ++i) {
mimil 1:2bb500b021e2 297 if (i != object_->begin()) {
mimil 1:2bb500b021e2 298 *oi++ = ',';
mimil 1:2bb500b021e2 299 }
mimil 1:2bb500b021e2 300 serialize_str(i->first, oi);
mimil 1:2bb500b021e2 301 *oi++ = ':';
mimil 1:2bb500b021e2 302 i->second.serialize(oi);
mimil 0:7bd1a48945f5 303 }
mimil 0:7bd1a48945f5 304 *oi++ = '}';
mimil 0:7bd1a48945f5 305 break;
mimil 0:7bd1a48945f5 306 }
mimil 0:7bd1a48945f5 307 default:
mimil 0:7bd1a48945f5 308 copy(to_str(), oi);
mimil 0:7bd1a48945f5 309 break;
mimil 0:7bd1a48945f5 310 }
mimil 0:7bd1a48945f5 311 }
mimil 0:7bd1a48945f5 312
mimil 0:7bd1a48945f5 313 inline std::string value::serialize() const {
mimil 0:7bd1a48945f5 314 std::string s;
mimil 0:7bd1a48945f5 315 serialize(std::back_inserter(s));
mimil 0:7bd1a48945f5 316 return s;
mimil 0:7bd1a48945f5 317 }
mimil 0:7bd1a48945f5 318
mimil 0:7bd1a48945f5 319 template <typename Iter> class input {
mimil 0:7bd1a48945f5 320 protected:
mimil 0:7bd1a48945f5 321 Iter cur_, end_;
mimil 0:7bd1a48945f5 322 int last_ch_;
mimil 0:7bd1a48945f5 323 bool ungot_;
mimil 0:7bd1a48945f5 324 int line_;
mimil 0:7bd1a48945f5 325 public:
mimil 0:7bd1a48945f5 326 input(const Iter& first, const Iter& last) : cur_(first), end_(last), last_ch_(-1), ungot_(false), line_(1) {}
mimil 0:7bd1a48945f5 327 int getc() {
mimil 0:7bd1a48945f5 328 if (ungot_) {
mimil 1:2bb500b021e2 329 ungot_ = false;
mimil 1:2bb500b021e2 330 return last_ch_;
mimil 0:7bd1a48945f5 331 }
mimil 0:7bd1a48945f5 332 if (cur_ == end_) {
mimil 1:2bb500b021e2 333 last_ch_ = -1;
mimil 1:2bb500b021e2 334 return -1;
mimil 0:7bd1a48945f5 335 }
mimil 0:7bd1a48945f5 336 if (last_ch_ == '\n') {
mimil 1:2bb500b021e2 337 line_++;
mimil 0:7bd1a48945f5 338 }
mimil 0:7bd1a48945f5 339 last_ch_ = *cur_++ & 0xff;
mimil 0:7bd1a48945f5 340 return last_ch_;
mimil 0:7bd1a48945f5 341 }
mimil 0:7bd1a48945f5 342 void ungetc() {
mimil 0:7bd1a48945f5 343 if (last_ch_ != -1) {
mimil 1:2bb500b021e2 344 assert(! ungot_);
mimil 1:2bb500b021e2 345 ungot_ = true;
mimil 0:7bd1a48945f5 346 }
mimil 0:7bd1a48945f5 347 }
mimil 0:7bd1a48945f5 348 Iter cur() const { return cur_; }
mimil 0:7bd1a48945f5 349 int line() const { return line_; }
mimil 0:7bd1a48945f5 350 void skip_ws() {
mimil 0:7bd1a48945f5 351 while (1) {
mimil 1:2bb500b021e2 352 int ch = getc();
mimil 1:2bb500b021e2 353 if (! (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r')) {
mimil 1:2bb500b021e2 354 ungetc();
mimil 1:2bb500b021e2 355 break;
mimil 1:2bb500b021e2 356 }
mimil 0:7bd1a48945f5 357 }
mimil 0:7bd1a48945f5 358 }
mimil 0:7bd1a48945f5 359 int expect(int expect) {
mimil 0:7bd1a48945f5 360 skip_ws();
mimil 0:7bd1a48945f5 361 if (getc() != expect) {
mimil 1:2bb500b021e2 362 ungetc();
mimil 1:2bb500b021e2 363 return false;
mimil 0:7bd1a48945f5 364 }
mimil 0:7bd1a48945f5 365 return true;
mimil 0:7bd1a48945f5 366 }
mimil 0:7bd1a48945f5 367 bool match(const std::string& pattern) {
mimil 0:7bd1a48945f5 368 for (std::string::const_iterator pi(pattern.begin());
mimil 1:2bb500b021e2 369 pi != pattern.end();
mimil 1:2bb500b021e2 370 ++pi) {
mimil 1:2bb500b021e2 371 if (getc() != *pi) {
mimil 1:2bb500b021e2 372 ungetc();
mimil 1:2bb500b021e2 373 return false;
mimil 1:2bb500b021e2 374 }
mimil 0:7bd1a48945f5 375 }
mimil 0:7bd1a48945f5 376 return true;
mimil 0:7bd1a48945f5 377 }
mimil 0:7bd1a48945f5 378 };
mimil 0:7bd1a48945f5 379
mimil 0:7bd1a48945f5 380 template<typename Iter> inline int _parse_quadhex(input<Iter> &in) {
mimil 0:7bd1a48945f5 381 int uni_ch = 0, hex;
mimil 0:7bd1a48945f5 382 for (int i = 0; i < 4; i++) {
mimil 0:7bd1a48945f5 383 if ((hex = in.getc()) == -1) {
mimil 1:2bb500b021e2 384 return -1;
mimil 0:7bd1a48945f5 385 }
mimil 0:7bd1a48945f5 386 if ('0' <= hex && hex <= '9') {
mimil 1:2bb500b021e2 387 hex -= '0';
mimil 0:7bd1a48945f5 388 } else if ('A' <= hex && hex <= 'F') {
mimil 1:2bb500b021e2 389 hex -= 'A' - 0xa;
mimil 0:7bd1a48945f5 390 } else if ('a' <= hex && hex <= 'f') {
mimil 1:2bb500b021e2 391 hex -= 'a' - 0xa;
mimil 0:7bd1a48945f5 392 } else {
mimil 1:2bb500b021e2 393 in.ungetc();
mimil 1:2bb500b021e2 394 return -1;
mimil 0:7bd1a48945f5 395 }
mimil 0:7bd1a48945f5 396 uni_ch = uni_ch * 16 + hex;
mimil 0:7bd1a48945f5 397 }
mimil 0:7bd1a48945f5 398 return uni_ch;
mimil 0:7bd1a48945f5 399 }
mimil 0:7bd1a48945f5 400
mimil 0:7bd1a48945f5 401 template<typename Iter> inline bool _parse_codepoint(std::string& out, input<Iter>& in) {
mimil 0:7bd1a48945f5 402 int uni_ch;
mimil 0:7bd1a48945f5 403 if ((uni_ch = _parse_quadhex(in)) == -1) {
mimil 0:7bd1a48945f5 404 return false;
mimil 0:7bd1a48945f5 405 }
mimil 0:7bd1a48945f5 406 if (0xd800 <= uni_ch && uni_ch <= 0xdfff) {
mimil 0:7bd1a48945f5 407 if (0xdc00 <= uni_ch) {
mimil 1:2bb500b021e2 408 // a second 16-bit of a surrogate pair appeared
mimil 1:2bb500b021e2 409 return false;
mimil 0:7bd1a48945f5 410 }
mimil 0:7bd1a48945f5 411 // first 16-bit of surrogate pair, get the next one
mimil 0:7bd1a48945f5 412 if (in.getc() != '\\' || in.getc() != 'u') {
mimil 1:2bb500b021e2 413 in.ungetc();
mimil 1:2bb500b021e2 414 return false;
mimil 0:7bd1a48945f5 415 }
mimil 0:7bd1a48945f5 416 int second = _parse_quadhex(in);
mimil 0:7bd1a48945f5 417 if (! (0xdc00 <= second && second <= 0xdfff)) {
mimil 1:2bb500b021e2 418 return false;
mimil 0:7bd1a48945f5 419 }
mimil 0:7bd1a48945f5 420 uni_ch = ((uni_ch - 0xd800) << 10) | ((second - 0xdc00) & 0x3ff);
mimil 0:7bd1a48945f5 421 uni_ch += 0x10000;
mimil 0:7bd1a48945f5 422 }
mimil 0:7bd1a48945f5 423 if (uni_ch < 0x80) {
mimil 0:7bd1a48945f5 424 out.push_back(uni_ch);
mimil 0:7bd1a48945f5 425 } else {
mimil 0:7bd1a48945f5 426 if (uni_ch < 0x800) {
mimil 1:2bb500b021e2 427 out.push_back(0xc0 | (uni_ch >> 6));
mimil 0:7bd1a48945f5 428 } else {
mimil 1:2bb500b021e2 429 if (uni_ch < 0x10000) {
mimil 1:2bb500b021e2 430 out.push_back(0xe0 | (uni_ch >> 12));
mimil 1:2bb500b021e2 431 } else {
mimil 1:2bb500b021e2 432 out.push_back(0xf0 | (uni_ch >> 18));
mimil 1:2bb500b021e2 433 out.push_back(0x80 | ((uni_ch >> 12) & 0x3f));
mimil 1:2bb500b021e2 434 }
mimil 1:2bb500b021e2 435 out.push_back(0x80 | ((uni_ch >> 6) & 0x3f));
mimil 0:7bd1a48945f5 436 }
mimil 0:7bd1a48945f5 437 out.push_back(0x80 | (uni_ch & 0x3f));
mimil 0:7bd1a48945f5 438 }
mimil 0:7bd1a48945f5 439 return true;
mimil 0:7bd1a48945f5 440 }
mimil 0:7bd1a48945f5 441
mimil 0:7bd1a48945f5 442 template<typename Iter> inline bool _parse_string(value& out, input<Iter>& in) {
mimil 0:7bd1a48945f5 443 // gcc 4.1 cannot compile if the below two lines are merged into one :-(
mimil 0:7bd1a48945f5 444 out = value(string_type, false);
mimil 0:7bd1a48945f5 445 std::string& s = out.get<std::string>();
mimil 0:7bd1a48945f5 446 while (1) {
mimil 0:7bd1a48945f5 447 int ch = in.getc();
mimil 0:7bd1a48945f5 448 if (ch < ' ') {
mimil 1:2bb500b021e2 449 in.ungetc();
mimil 1:2bb500b021e2 450 return false;
mimil 0:7bd1a48945f5 451 } else if (ch == '"') {
mimil 1:2bb500b021e2 452 return true;
mimil 0:7bd1a48945f5 453 } else if (ch == '\\') {
mimil 1:2bb500b021e2 454 if ((ch = in.getc()) == -1) {
mimil 1:2bb500b021e2 455 return false;
mimil 1:2bb500b021e2 456 }
mimil 1:2bb500b021e2 457 switch (ch) {
mimil 0:7bd1a48945f5 458 #define MAP(sym, val) case sym: s.push_back(val); break
mimil 1:2bb500b021e2 459 MAP('"', '\"');
mimil 1:2bb500b021e2 460 MAP('\\', '\\');
mimil 1:2bb500b021e2 461 MAP('/', '/');
mimil 1:2bb500b021e2 462 MAP('b', '\b');
mimil 1:2bb500b021e2 463 MAP('f', '\f');
mimil 1:2bb500b021e2 464 MAP('n', '\n');
mimil 1:2bb500b021e2 465 MAP('r', '\r');
mimil 1:2bb500b021e2 466 MAP('t', '\t');
mimil 0:7bd1a48945f5 467 #undef MAP
mimil 1:2bb500b021e2 468 case 'u':
mimil 1:2bb500b021e2 469 if (! _parse_codepoint(s, in)) {
mimil 1:2bb500b021e2 470 return false;
mimil 1:2bb500b021e2 471 }
mimil 1:2bb500b021e2 472 break;
mimil 1:2bb500b021e2 473 default:
mimil 1:2bb500b021e2 474 return false;
mimil 1:2bb500b021e2 475 }
mimil 0:7bd1a48945f5 476 } else {
mimil 1:2bb500b021e2 477 s.push_back(ch);
mimil 0:7bd1a48945f5 478 }
mimil 0:7bd1a48945f5 479 }
mimil 0:7bd1a48945f5 480 return false;
mimil 0:7bd1a48945f5 481 }
mimil 0:7bd1a48945f5 482
mimil 0:7bd1a48945f5 483 template <typename Iter> inline bool _parse_array(value& out, input<Iter>& in) {
mimil 0:7bd1a48945f5 484 out = value(array_type, false);
mimil 0:7bd1a48945f5 485 array& a = out.get<array>();
mimil 0:7bd1a48945f5 486 if (in.expect(']')) {
mimil 0:7bd1a48945f5 487 return true;
mimil 0:7bd1a48945f5 488 }
mimil 0:7bd1a48945f5 489 do {
mimil 0:7bd1a48945f5 490 a.push_back(value());
mimil 0:7bd1a48945f5 491 if (! _parse(a.back(), in)) {
mimil 1:2bb500b021e2 492 return false;
mimil 0:7bd1a48945f5 493 }
mimil 0:7bd1a48945f5 494 } while (in.expect(','));
mimil 0:7bd1a48945f5 495 return in.expect(']');
mimil 0:7bd1a48945f5 496 }
mimil 0:7bd1a48945f5 497
mimil 0:7bd1a48945f5 498 template <typename Iter> inline bool _parse_object(value& out, input<Iter>& in) {
mimil 0:7bd1a48945f5 499 out = value(object_type, false);
mimil 0:7bd1a48945f5 500 object& o = out.get<object>();
mimil 0:7bd1a48945f5 501 if (in.expect('}')) {
mimil 0:7bd1a48945f5 502 return true;
mimil 0:7bd1a48945f5 503 }
mimil 0:7bd1a48945f5 504 do {
mimil 0:7bd1a48945f5 505 value key, val;
mimil 0:7bd1a48945f5 506 if (in.expect('"')
mimil 1:2bb500b021e2 507 && _parse_string(key, in)
mimil 1:2bb500b021e2 508 && in.expect(':')
mimil 1:2bb500b021e2 509 && _parse(val, in)) {
mimil 1:2bb500b021e2 510 o[key.to_str()] = val;
mimil 0:7bd1a48945f5 511 } else {
mimil 1:2bb500b021e2 512 return false;
mimil 0:7bd1a48945f5 513 }
mimil 0:7bd1a48945f5 514 } while (in.expect(','));
mimil 0:7bd1a48945f5 515 return in.expect('}');
mimil 0:7bd1a48945f5 516 }
mimil 0:7bd1a48945f5 517
mimil 0:7bd1a48945f5 518 template <typename Iter> inline bool _parse_number(value& out, input<Iter>& in) {
mimil 0:7bd1a48945f5 519 std::string num_str;
mimil 0:7bd1a48945f5 520 while (1) {
mimil 0:7bd1a48945f5 521 int ch = in.getc();
mimil 0:7bd1a48945f5 522 if (('0' <= ch && ch <= '9') || ch == '+' || ch == '-' || ch == '.'
mimil 1:2bb500b021e2 523 || ch == 'e' || ch == 'E') {
mimil 1:2bb500b021e2 524 num_str.push_back(ch);
mimil 0:7bd1a48945f5 525 } else {
mimil 1:2bb500b021e2 526 in.ungetc();
mimil 1:2bb500b021e2 527 break;
mimil 0:7bd1a48945f5 528 }
mimil 0:7bd1a48945f5 529 }
mimil 0:7bd1a48945f5 530 char* endp;
mimil 0:7bd1a48945f5 531 out = value(strtod(num_str.c_str(), &endp));
mimil 0:7bd1a48945f5 532 return endp == num_str.c_str() + num_str.size();
mimil 0:7bd1a48945f5 533 }
mimil 0:7bd1a48945f5 534
mimil 0:7bd1a48945f5 535 template <typename Iter> inline bool _parse(value& out, input<Iter>& in) {
mimil 0:7bd1a48945f5 536 in.skip_ws();
mimil 0:7bd1a48945f5 537 int ch = in.getc();
mimil 0:7bd1a48945f5 538 switch (ch) {
mimil 0:7bd1a48945f5 539 #define IS(ch, text, val) case ch: \
mimil 0:7bd1a48945f5 540 if (in.match(text)) { \
mimil 1:2bb500b021e2 541 out = val; \
mimil 1:2bb500b021e2 542 return true; \
mimil 0:7bd1a48945f5 543 } else { \
mimil 1:2bb500b021e2 544 return false; \
mimil 0:7bd1a48945f5 545 }
mimil 0:7bd1a48945f5 546 IS('n', "ull", value());
mimil 0:7bd1a48945f5 547 IS('f', "alse", value(false));
mimil 0:7bd1a48945f5 548 IS('t', "rue", value(true));
mimil 0:7bd1a48945f5 549 #undef IS
mimil 0:7bd1a48945f5 550 case '"':
mimil 0:7bd1a48945f5 551 return _parse_string(out, in);
mimil 0:7bd1a48945f5 552 case '[':
mimil 0:7bd1a48945f5 553 return _parse_array(out, in);
mimil 0:7bd1a48945f5 554 case '{':
mimil 0:7bd1a48945f5 555 return _parse_object(out, in);
mimil 0:7bd1a48945f5 556 default:
mimil 0:7bd1a48945f5 557 if (('0' <= ch && ch <= '9') || ch == '-') {
mimil 1:2bb500b021e2 558 in.ungetc();
mimil 1:2bb500b021e2 559 return _parse_number(out, in);
mimil 0:7bd1a48945f5 560 }
mimil 0:7bd1a48945f5 561 break;
mimil 0:7bd1a48945f5 562 }
mimil 0:7bd1a48945f5 563 in.ungetc();
mimil 0:7bd1a48945f5 564 return false;
mimil 0:7bd1a48945f5 565 }
mimil 0:7bd1a48945f5 566
mimil 0:7bd1a48945f5 567 // obsolete, use the version below
mimil 0:7bd1a48945f5 568 template <typename Iter> inline std::string parse(value& out, Iter& pos, const Iter& last) {
mimil 0:7bd1a48945f5 569 std::string err;
mimil 0:7bd1a48945f5 570 pos = parse(out, pos, last, &err);
mimil 0:7bd1a48945f5 571 return err;
mimil 0:7bd1a48945f5 572 }
mimil 0:7bd1a48945f5 573
mimil 0:7bd1a48945f5 574 template <typename Iter> inline Iter parse(value& out, const Iter& first, const Iter& last, std::string* err) {
mimil 0:7bd1a48945f5 575 input<Iter> in(first, last);
mimil 0:7bd1a48945f5 576 if (! _parse(out, in) && err != NULL) {
mimil 0:7bd1a48945f5 577 char buf[64];
mimil 0:7bd1a48945f5 578 SNPRINTF(buf, sizeof(buf), "syntax error at line %d near: ", in.line());
mimil 0:7bd1a48945f5 579 *err = buf;
mimil 0:7bd1a48945f5 580 while (1) {
mimil 1:2bb500b021e2 581 int ch = in.getc();
mimil 1:2bb500b021e2 582 if (ch == -1 || ch == '\n') {
mimil 1:2bb500b021e2 583 break;
mimil 1:2bb500b021e2 584 } else if (ch >= ' ') {
mimil 1:2bb500b021e2 585 err->push_back(ch);
mimil 1:2bb500b021e2 586 }
mimil 0:7bd1a48945f5 587 }
mimil 0:7bd1a48945f5 588 }
mimil 0:7bd1a48945f5 589 return in.cur();
mimil 0:7bd1a48945f5 590 }
mimil 0:7bd1a48945f5 591
mimil 0:7bd1a48945f5 592 inline std::string parse(value& out, std::istream& is) {
mimil 0:7bd1a48945f5 593 std::string err;
mimil 0:7bd1a48945f5 594 parse(out, std::istreambuf_iterator<char>(is.rdbuf()),
mimil 1:2bb500b021e2 595 std::istreambuf_iterator<char>(), &err);
mimil 0:7bd1a48945f5 596 return err;
mimil 0:7bd1a48945f5 597 }
mimil 0:7bd1a48945f5 598
mimil 0:7bd1a48945f5 599 template <typename T> struct last_error_t {
mimil 0:7bd1a48945f5 600 static std::string s;
mimil 0:7bd1a48945f5 601 };
mimil 0:7bd1a48945f5 602 template <typename T> std::string last_error_t<T>::s;
mimil 0:7bd1a48945f5 603
mimil 0:7bd1a48945f5 604 inline void set_last_error(const std::string& s) {
mimil 0:7bd1a48945f5 605 last_error_t<bool>::s = s;
mimil 0:7bd1a48945f5 606 }
mimil 0:7bd1a48945f5 607
mimil 0:7bd1a48945f5 608 inline const std::string& get_last_error() {
mimil 0:7bd1a48945f5 609 return last_error_t<bool>::s;
mimil 0:7bd1a48945f5 610 }
mimil 0:7bd1a48945f5 611
mimil 1:2bb500b021e2 612 inline bool operator==(const value& x, const value& y) {
mimil 0:7bd1a48945f5 613 if (x.is<null>())
mimil 0:7bd1a48945f5 614 return y.is<null>();
mimil 1:2bb500b021e2 615 #define PICOJSON_CMP(type) \
mimil 1:2bb500b021e2 616 if (x.is<type>()) \
mimil 0:7bd1a48945f5 617 return y.is<type>() && x.get<type>() == y.get<type>()
mimil 0:7bd1a48945f5 618 PICOJSON_CMP(bool);
mimil 0:7bd1a48945f5 619 PICOJSON_CMP(double);
mimil 0:7bd1a48945f5 620 PICOJSON_CMP(std::string);
mimil 0:7bd1a48945f5 621 PICOJSON_CMP(array);
mimil 0:7bd1a48945f5 622 PICOJSON_CMP(object);
mimil 0:7bd1a48945f5 623 #undef PICOJSON_CMP
mimil 0:7bd1a48945f5 624 assert(0);
mimil 0:7bd1a48945f5 625 #ifdef _MSC_VER
mimil 0:7bd1a48945f5 626 __assume(0);
mimil 0:7bd1a48945f5 627 #endif
mimil 0:7bd1a48945f5 628 return false;
mimil 0:7bd1a48945f5 629 }
mimil 0:7bd1a48945f5 630
mimil 0:7bd1a48945f5 631 inline bool operator!=(const value& x, const value& y) {
mimil 0:7bd1a48945f5 632 return ! (x == y);
mimil 0:7bd1a48945f5 633 }
mimil 0:7bd1a48945f5 634 }
mimil 0:7bd1a48945f5 635
mimil 0:7bd1a48945f5 636 inline std::istream& operator>>(std::istream& is, picojson::value& x)
mimil 0:7bd1a48945f5 637 {
mimil 0:7bd1a48945f5 638 picojson::set_last_error(std::string());
mimil 0:7bd1a48945f5 639 std::string err = picojson::parse(x, is);
mimil 0:7bd1a48945f5 640 if (! err.empty()) {
mimil 0:7bd1a48945f5 641 picojson::set_last_error(err);
mimil 0:7bd1a48945f5 642 is.setstate(std::ios::failbit);
mimil 0:7bd1a48945f5 643 }
mimil 0:7bd1a48945f5 644 return is;
mimil 0:7bd1a48945f5 645 }
mimil 0:7bd1a48945f5 646
mimil 0:7bd1a48945f5 647 inline std::ostream& operator<<(std::ostream& os, const picojson::value& x)
mimil 0:7bd1a48945f5 648 {
mimil 0:7bd1a48945f5 649 x.serialize(std::ostream_iterator<char>(os));
mimil 0:7bd1a48945f5 650 return os;
mimil 0:7bd1a48945f5 651 }
mimil 0:7bd1a48945f5 652 #ifdef _MSC_VER
mimil 0:7bd1a48945f5 653 #pragma warning(pop)
mimil 0:7bd1a48945f5 654 #endif
mimil 0:7bd1a48945f5 655
mimil 0:7bd1a48945f5 656 #endif
mimil 0:7bd1a48945f5 657 #ifdef TEST_PICOJSON
mimil 0:7bd1a48945f5 658 #ifdef _MSC_VER
mimil 0:7bd1a48945f5 659 #pragma warning(disable : 4127) // conditional expression is constant
mimil 0:7bd1a48945f5 660 #endif
mimil 0:7bd1a48945f5 661
mimil 0:7bd1a48945f5 662 using namespace std;
mimil 0:7bd1a48945f5 663
mimil 0:7bd1a48945f5 664 static void plan(int num)
mimil 0:7bd1a48945f5 665 {
mimil 0:7bd1a48945f5 666 printf("1..%d\n", num);
mimil 0:7bd1a48945f5 667 }
mimil 0:7bd1a48945f5 668
mimil 0:7bd1a48945f5 669 static void ok(bool b, const char* name = "")
mimil 0:7bd1a48945f5 670 {
mimil 0:7bd1a48945f5 671 static int n = 1;
mimil 0:7bd1a48945f5 672 printf("%s %d - %s\n", b ? "ok" : "ng", n++, name);
mimil 0:7bd1a48945f5 673 }
mimil 0:7bd1a48945f5 674
mimil 0:7bd1a48945f5 675 template <typename T> void is(const T& x, const T& y, const char* name = "")
mimil 0:7bd1a48945f5 676 {
mimil 0:7bd1a48945f5 677 if (x == y) {
mimil 0:7bd1a48945f5 678 ok(true, name);
mimil 0:7bd1a48945f5 679 } else {
mimil 0:7bd1a48945f5 680 ok(false, name);
mimil 0:7bd1a48945f5 681 }
mimil 0:7bd1a48945f5 682 }
mimil 0:7bd1a48945f5 683
mimil 0:7bd1a48945f5 684 #include <algorithm>
mimil 0:7bd1a48945f5 685
mimil 0:7bd1a48945f5 686 int main(void)
mimil 0:7bd1a48945f5 687 {
mimil 1:2bb500b021e2 688 plan(62);
mimil 0:7bd1a48945f5 689
mimil 1:2bb500b021e2 690 #define TEST(in, type, cmp, serialize_test) { \
mimil 1:2bb500b021e2 691 picojson::value v; \
mimil 1:2bb500b021e2 692 const char* s = in; \
mimil 1:2bb500b021e2 693 string err = picojson::parse(v, s, s + strlen(s)); \
mimil 1:2bb500b021e2 694 ok(err.empty(), in " no error"); \
mimil 1:2bb500b021e2 695 ok(v.is<type>(), in " check type"); \
mimil 1:2bb500b021e2 696 is(v.get<type>(), cmp, in " correct output"); \
mimil 1:2bb500b021e2 697 is(*s, '\0', in " read to eof"); \
mimil 1:2bb500b021e2 698 if (serialize_test) { \
mimil 1:2bb500b021e2 699 is(v.serialize(), string(in), in " serialize"); \
mimil 1:2bb500b021e2 700 } \
mimil 0:7bd1a48945f5 701 }
mimil 0:7bd1a48945f5 702 TEST("false", bool, false, true);
mimil 0:7bd1a48945f5 703 TEST("true", bool, true, true);
mimil 0:7bd1a48945f5 704 TEST("90.5", double, 90.5, false);
mimil 0:7bd1a48945f5 705 TEST("\"hello\"", string, string("hello"), true);
mimil 0:7bd1a48945f5 706 TEST("\"\\\"\\\\\\/\\b\\f\\n\\r\\t\"", string, string("\"\\/\b\f\n\r\t"),
mimil 0:7bd1a48945f5 707 true);
mimil 0:7bd1a48945f5 708 TEST("\"\\u0061\\u30af\\u30ea\\u30b9\"", string,
mimil 0:7bd1a48945f5 709 string("a\xe3\x82\xaf\xe3\x83\xaa\xe3\x82\xb9"), false);
mimil 0:7bd1a48945f5 710 TEST("\"\\ud840\\udc0b\"", string, string("\xf0\xa0\x80\x8b"), false);
mimil 0:7bd1a48945f5 711 #undef TEST
mimil 0:7bd1a48945f5 712
mimil 1:2bb500b021e2 713 #define TEST(type, expr) { \
mimil 1:2bb500b021e2 714 picojson::value v; \
mimil 1:2bb500b021e2 715 const char *s = expr; \
mimil 1:2bb500b021e2 716 string err = picojson::parse(v, s, s + strlen(s)); \
mimil 1:2bb500b021e2 717 ok(err.empty(), "empty " #type " no error"); \
mimil 1:2bb500b021e2 718 ok(v.is<picojson::type>(), "empty " #type " check type"); \
mimil 0:7bd1a48945f5 719 ok(v.get<picojson::type>().empty(), "check " #type " array size"); \
mimil 0:7bd1a48945f5 720 }
mimil 0:7bd1a48945f5 721 TEST(array, "[]");
mimil 0:7bd1a48945f5 722 TEST(object, "{}");
mimil 0:7bd1a48945f5 723 #undef TEST
mimil 0:7bd1a48945f5 724
mimil 0:7bd1a48945f5 725 {
mimil 0:7bd1a48945f5 726 picojson::value v;
mimil 0:7bd1a48945f5 727 const char *s = "[1,true,\"hello\"]";
mimil 0:7bd1a48945f5 728 string err = picojson::parse(v, s, s + strlen(s));
mimil 0:7bd1a48945f5 729 ok(err.empty(), "array no error");
mimil 0:7bd1a48945f5 730 ok(v.is<picojson::array>(), "array check type");
mimil 0:7bd1a48945f5 731 is(v.get<picojson::array>().size(), size_t(3), "check array size");
mimil 0:7bd1a48945f5 732 ok(v.get(0).is<double>(), "check array[0] type");
mimil 0:7bd1a48945f5 733 is(v.get(0).get<double>(), 1.0, "check array[0] value");
mimil 0:7bd1a48945f5 734 ok(v.get(1).is<bool>(), "check array[1] type");
mimil 0:7bd1a48945f5 735 ok(v.get(1).get<bool>(), "check array[1] value");
mimil 0:7bd1a48945f5 736 ok(v.get(2).is<string>(), "check array[2] type");
mimil 0:7bd1a48945f5 737 is(v.get(2).get<string>(), string("hello"), "check array[2] value");
mimil 0:7bd1a48945f5 738 }
mimil 0:7bd1a48945f5 739
mimil 0:7bd1a48945f5 740 {
mimil 0:7bd1a48945f5 741 picojson::value v;
mimil 0:7bd1a48945f5 742 const char *s = "{ \"a\": true }";
mimil 0:7bd1a48945f5 743 string err = picojson::parse(v, s, s + strlen(s));
mimil 0:7bd1a48945f5 744 ok(err.empty(), "object no error");
mimil 0:7bd1a48945f5 745 ok(v.is<picojson::object>(), "object check type");
mimil 0:7bd1a48945f5 746 is(v.get<picojson::object>().size(), size_t(1), "check object size");
mimil 0:7bd1a48945f5 747 ok(v.get("a").is<bool>(), "check property exists");
mimil 0:7bd1a48945f5 748 is(v.get("a").get<bool>(), true,
mimil 0:7bd1a48945f5 749 "check property value");
mimil 0:7bd1a48945f5 750 is(v.serialize(), string("{\"a\":true}"), "serialize object");
mimil 0:7bd1a48945f5 751 }
mimil 0:7bd1a48945f5 752
mimil 1:2bb500b021e2 753 #define TEST(json, msg) do { \
mimil 1:2bb500b021e2 754 picojson::value v; \
mimil 1:2bb500b021e2 755 const char *s = json; \
mimil 1:2bb500b021e2 756 string err = picojson::parse(v, s, s + strlen(s)); \
mimil 1:2bb500b021e2 757 is(err, string("syntax error at line " msg), msg); \
mimil 0:7bd1a48945f5 758 } while (0)
mimil 0:7bd1a48945f5 759 TEST("falsoa", "1 near: oa");
mimil 0:7bd1a48945f5 760 TEST("{]", "1 near: ]");
mimil 0:7bd1a48945f5 761 TEST("\n\bbell", "2 near: bell");
mimil 0:7bd1a48945f5 762 TEST("\"abc\nd\"", "1 near: ");
mimil 0:7bd1a48945f5 763 #undef TEST
mimil 0:7bd1a48945f5 764
mimil 0:7bd1a48945f5 765 {
mimil 0:7bd1a48945f5 766 picojson::value v1, v2;
mimil 0:7bd1a48945f5 767 const char *s;
mimil 0:7bd1a48945f5 768 string err;
mimil 0:7bd1a48945f5 769 s = "{ \"b\": true, \"a\": [1,2,\"three\"], \"d\": 2 }";
mimil 0:7bd1a48945f5 770 err = picojson::parse(v1, s, s + strlen(s));
mimil 0:7bd1a48945f5 771 s = "{ \"d\": 2.0, \"b\": true, \"a\": [1,2,\"three\"] }";
mimil 0:7bd1a48945f5 772 err = picojson::parse(v2, s, s + strlen(s));
mimil 0:7bd1a48945f5 773 ok((v1 == v2), "check == operator in deep comparison");
mimil 0:7bd1a48945f5 774 }
mimil 0:7bd1a48945f5 775
mimil 0:7bd1a48945f5 776 {
mimil 0:7bd1a48945f5 777 picojson::value v1, v2;
mimil 0:7bd1a48945f5 778 const char *s;
mimil 0:7bd1a48945f5 779 string err;
mimil 0:7bd1a48945f5 780 s = "{ \"b\": true, \"a\": [1,2,\"three\"], \"d\": 2 }";
mimil 0:7bd1a48945f5 781 err = picojson::parse(v1, s, s + strlen(s));
mimil 0:7bd1a48945f5 782 s = "{ \"d\": 2.0, \"a\": [1,\"three\"], \"b\": true }";
mimil 0:7bd1a48945f5 783 err = picojson::parse(v2, s, s + strlen(s));
mimil 0:7bd1a48945f5 784 ok((v1 != v2), "check != operator for array in deep comparison");
mimil 0:7bd1a48945f5 785 }
mimil 0:7bd1a48945f5 786
mimil 0:7bd1a48945f5 787 {
mimil 0:7bd1a48945f5 788 picojson::value v1, v2;
mimil 0:7bd1a48945f5 789 const char *s;
mimil 0:7bd1a48945f5 790 string err;
mimil 0:7bd1a48945f5 791 s = "{ \"b\": true, \"a\": [1,2,\"three\"], \"d\": 2 }";
mimil 0:7bd1a48945f5 792 err = picojson::parse(v1, s, s + strlen(s));
mimil 0:7bd1a48945f5 793 s = "{ \"d\": 2.0, \"a\": [1,2,\"three\"], \"b\": false }";
mimil 0:7bd1a48945f5 794 err = picojson::parse(v2, s, s + strlen(s));
mimil 0:7bd1a48945f5 795 ok((v1 != v2), "check != operator for object in deep comparison");
mimil 0:7bd1a48945f5 796 }
mimil 0:7bd1a48945f5 797
mimil 0:7bd1a48945f5 798 {
mimil 0:7bd1a48945f5 799 picojson::value v1, v2;
mimil 0:7bd1a48945f5 800 const char *s;
mimil 0:7bd1a48945f5 801 string err;
mimil 0:7bd1a48945f5 802 s = "{ \"b\": true, \"a\": [1,2,\"three\"], \"d\": 2 }";
mimil 0:7bd1a48945f5 803 err = picojson::parse(v1, s, s + strlen(s));
mimil 0:7bd1a48945f5 804 picojson::object& o = v1.get<picojson::object>();
mimil 0:7bd1a48945f5 805 o.erase("b");
mimil 0:7bd1a48945f5 806 picojson::array& a = o["a"].get<picojson::array>();
mimil 0:7bd1a48945f5 807 picojson::array::iterator i;
mimil 0:7bd1a48945f5 808 i = std::remove(a.begin(), a.end(), picojson::value(std::string("three")));
mimil 0:7bd1a48945f5 809 a.erase(i, a.end());
mimil 0:7bd1a48945f5 810 s = "{ \"a\": [1,2], \"d\": 2 }";
mimil 0:7bd1a48945f5 811 err = picojson::parse(v2, s, s + strlen(s));
mimil 0:7bd1a48945f5 812 ok((v1 == v2), "check erase()");
mimil 0:7bd1a48945f5 813 }
mimil 0:7bd1a48945f5 814
mimil 1:2bb500b021e2 815 ok(picojson::value(3.0).serialize() == "3",
mimil 1:2bb500b021e2 816 "integral number should be serialized as a integer");
mimil 1:2bb500b021e2 817
mimil 0:7bd1a48945f5 818 return 0;
mimil 0:7bd1a48945f5 819 }
mimil 0:7bd1a48945f5 820
mimil 1:2bb500b021e2 821 #endif