Merge commit '2f9f082b5ef3c495c70598ef23383effef675f9a' as 'src/univalue'

1 files changed, 250 insertions, 0 deletions

diff --git a/src/univalue/include/univalue.h b/src/univalue/include/univalue.h
new file mode 100644
index 0000000000..ac05116011
--- /dev/null
+++ b/src/univalue/include/univalue.h
@@ -0,0 +1,250 @@
+// Copyright 2014 BitPay Inc.
+// Copyright 2015 Bitcoin Core Developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef __UNIVALUE_H__
+#define __UNIVALUE_H__
+
+#include <stdint.h>
+
+#include <string>
+#include <vector>
+#include <map>
+#include <cassert>
+
+#include <sstream>        // .get_int64()
+#include <utility>        // std::pair
+
+class UniValue {
+public:
+    enum VType { VNULL, VOBJ, VARR, VSTR, VNUM, VBOOL, };
+
+    UniValue() { typ = VNULL; }
+    UniValue(UniValue::VType initialType, const std::string& initialStr = "") {
+        typ = initialType;
+        val = initialStr;
+    }
+    UniValue(uint64_t val_) {
+        setInt(val_);
+    }
+    UniValue(int64_t val_) {
+        setInt(val_);
+    }
+    UniValue(bool val_) {
+        setBool(val_);
+    }
+    UniValue(int val_) {
+        setInt(val_);
+    }
+    UniValue(double val_) {
+        setFloat(val_);
+    }
+    UniValue(const std::string& val_) {
+        setStr(val_);
+    }
+    UniValue(const char *val_) {
+        std::string s(val_);
+        setStr(s);
+    }
+    ~UniValue() {}
+
+    void clear();
+
+    bool setNull();
+    bool setBool(bool val);
+    bool setNumStr(const std::string& val);
+    bool setInt(uint64_t val);
+    bool setInt(int64_t val);
+    bool setInt(int val) { return setInt((int64_t)val); }
+    bool setFloat(double val);
+    bool setStr(const std::string& val);
+    bool setArray();
+    bool setObject();
+
+    enum VType getType() const { return typ; }
+    const std::string& getValStr() const { return val; }
+    bool empty() const { return (values.size() == 0); }
+
+    size_t size() const { return values.size(); }
+
+    bool getBool() const { return isTrue(); }
+    bool checkObject(const std::map<std::string,UniValue::VType>& memberTypes);
+    const UniValue& operator[](const std::string& key) const;
+    const UniValue& operator[](unsigned int index) const;
+    bool exists(const std::string& key) const { return (findKey(key) >= 0); }
+
+    bool isNull() const { return (typ == VNULL); }
+    bool isTrue() const { return (typ == VBOOL) && (val == "1"); }
+    bool isFalse() const { return (typ == VBOOL) && (val != "1"); }
+    bool isBool() const { return (typ == VBOOL); }
+    bool isStr() const { return (typ == VSTR); }
+    bool isNum() const { return (typ == VNUM); }
+    bool isArray() const { return (typ == VARR); }
+    bool isObject() const { return (typ == VOBJ); }
+
+    bool push_back(const UniValue& val);
+    bool push_back(const std::string& val_) {
+        UniValue tmpVal(VSTR, val_);
+        return push_back(tmpVal);
+    }
+    bool push_back(const char *val_) {
+        std::string s(val_);
+        return push_back(s);
+    }
+    bool push_backV(const std::vector<UniValue>& vec);
+
+    bool pushKV(const std::string& key, const UniValue& val);
+    bool pushKV(const std::string& key, const std::string& val) {
+        UniValue tmpVal(VSTR, val);
+        return pushKV(key, tmpVal);
+    }
+    bool pushKV(const std::string& key, const char *val_) {
+        std::string val(val_);
+        return pushKV(key, val);
+    }
+    bool pushKV(const std::string& key, int64_t val) {
+        UniValue tmpVal(val);
+        return pushKV(key, tmpVal);
+    }
+    bool pushKV(const std::string& key, uint64_t val) {
+        UniValue tmpVal(val);
+        return pushKV(key, tmpVal);
+    }
+    bool pushKV(const std::string& key, int val) {
+        UniValue tmpVal((int64_t)val);
+        return pushKV(key, tmpVal);
+    }
+    bool pushKV(const std::string& key, double val) {
+        UniValue tmpVal(val);
+        return pushKV(key, tmpVal);
+    }
+    bool pushKVs(const UniValue& obj);
+
+    std::string write(unsigned int prettyIndent = 0,
+                      unsigned int indentLevel = 0) const;
+
+    bool read(const char *raw);
+    bool read(const std::string& rawStr) {
+        return read(rawStr.c_str());
+    }
+
+private:
+    UniValue::VType typ;
+    std::string val;                       // numbers are stored as C++ strings
+    std::vector<std::string> keys;
+    std::vector<UniValue> values;
+
+    int findKey(const std::string& key) const;
+    void writeArray(unsigned int prettyIndent, unsigned int indentLevel, std::string& s) const;
+    void writeObject(unsigned int prettyIndent, unsigned int indentLevel, std::string& s) const;
+
+public:
+    // Strict type-specific getters, these throw std::runtime_error if the
+    // value is of unexpected type
+    std::vector<std::string> getKeys() const;
+    std::vector<UniValue> getValues() const;
+    bool get_bool() const;
+    std::string get_str() const;
+    int get_int() const;
+    int64_t get_int64() const;
+    double get_real() const;
+    const UniValue& get_obj() const;
+    const UniValue& get_array() const;
+
+    enum VType type() const { return getType(); }
+    bool push_back(std::pair<std::string,UniValue> pear) {
+        return pushKV(pear.first, pear.second);
+    }
+    friend const UniValue& find_value( const UniValue& obj, const std::string& name);
+};
+
+//
+// The following were added for compatibility with json_spirit.
+// Most duplicate other methods, and should be removed.
+//
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, const char *cVal)
+{
+    std::string key(cKey);
+    UniValue uVal(cVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, std::string strVal)
+{
+    std::string key(cKey);
+    UniValue uVal(strVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, uint64_t u64Val)
+{
+    std::string key(cKey);
+    UniValue uVal(u64Val);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, int64_t i64Val)
+{
+    std::string key(cKey);
+    UniValue uVal(i64Val);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, bool iVal)
+{
+    std::string key(cKey);
+    UniValue uVal(iVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, int iVal)
+{
+    std::string key(cKey);
+    UniValue uVal(iVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, double dVal)
+{
+    std::string key(cKey);
+    UniValue uVal(dVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, const UniValue& uVal)
+{
+    std::string key(cKey);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(std::string key, const UniValue& uVal)
+{
+    return std::make_pair(key, uVal);
+}
+
+enum jtokentype {
+    JTOK_ERR        = -1,
+    JTOK_NONE       = 0,                           // eof
+    JTOK_OBJ_OPEN,
+    JTOK_OBJ_CLOSE,
+    JTOK_ARR_OPEN,
+    JTOK_ARR_CLOSE,
+    JTOK_COLON,
+    JTOK_COMMA,
+    JTOK_KW_NULL,
+    JTOK_KW_TRUE,
+    JTOK_KW_FALSE,
+    JTOK_NUMBER,
+    JTOK_STRING,
+};
+
+extern enum jtokentype getJsonToken(std::string& tokenVal,
+                                    unsigned int& consumed, const char *raw);
+extern const char *uvTypeName(UniValue::VType t);
+
+extern const UniValue NullUniValue;
+
+const UniValue& find_value( const UniValue& obj, const std::string& name);
+
+#endif // __UNIVALUE_H__
\ No newline at end of file