diff options
Diffstat (limited to 'src/univalue')
-rw-r--r-- | src/univalue/gen.cpp | 78 | ||||
-rw-r--r-- | src/univalue/univalue.cpp | 211 | ||||
-rw-r--r-- | src/univalue/univalue.h | 155 | ||||
-rw-r--r-- | src/univalue/univalue_escapes.h | 262 | ||||
-rw-r--r-- | src/univalue/univalue_read.cpp | 390 | ||||
-rw-r--r-- | src/univalue/univalue_write.cpp | 125 |
6 files changed, 1221 insertions, 0 deletions
diff --git a/src/univalue/gen.cpp b/src/univalue/gen.cpp new file mode 100644 index 0000000000..f0b352eef0 --- /dev/null +++ b/src/univalue/gen.cpp @@ -0,0 +1,78 @@ +// Copyright 2014 BitPay Inc. +// Distributed under the MIT/X11 software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +// +// To re-create univalue_escapes.h: +// $ g++ -o gen gen.cpp +// $ ./gen > univalue_escapes.h +// + +#include <ctype.h> +#include <stdio.h> +#include <string.h> +#include "univalue.h" + +using namespace std; + +static bool initEscapes; +static const char *escapes[256]; + +static void initJsonEscape() +{ + escapes[(int)'"'] = "\\\""; + escapes[(int)'\\'] = "\\\\"; + escapes[(int)'/'] = "\\/"; + escapes[(int)'\b'] = "\\b"; + escapes[(int)'\f'] = "\\f"; + escapes[(int)'\n'] = "\\n"; + escapes[(int)'\r'] = "\\r"; + escapes[(int)'\t'] = "\\t"; + + initEscapes = true; +} + +static void outputEscape() +{ + printf( "// Automatically generated file. Do not modify.\n" + "#ifndef BITCOIN_UNIVALUE_UNIVALUE_ESCAPES_H\n" + "#define BITCOIN_UNIVALUE_UNIVALUE_ESCAPES_H\n" + "static const char *escapes[256] = {\n"); + + for (unsigned int i = 0; i < 256; i++) { + if (!escapes[i]) { + printf("\tNULL,\n"); + } else { + printf("\t\""); + + unsigned int si; + for (si = 0; si < strlen(escapes[i]); si++) { + char ch = escapes[i][si]; + switch (ch) { + case '"': + printf("\\\""); + break; + case '\\': + printf("\\\\"); + break; + default: + printf("%c", escapes[i][si]); + break; + } + } + + printf("\",\n"); + } + } + + printf( "};\n" + "#endif // BITCOIN_UNIVALUE_UNIVALUE_ESCAPES_H\n"); +} + +int main (int argc, char *argv[]) +{ + initJsonEscape(); + outputEscape(); + return 0; +} + diff --git a/src/univalue/univalue.cpp b/src/univalue/univalue.cpp new file mode 100644 index 0000000000..b0171e48c4 --- /dev/null +++ b/src/univalue/univalue.cpp @@ -0,0 +1,211 @@ +// Copyright 2014 BitPay Inc. +// Distributed under the MIT/X11 software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include <stdint.h> +#include <ctype.h> +#include <sstream> +#include "univalue.h" + +using namespace std; + +static const UniValue nullValue; + +void UniValue::clear() +{ + typ = VNULL; + val.clear(); + keys.clear(); + values.clear(); +} + +bool UniValue::setNull() +{ + clear(); + return true; +} + +bool UniValue::setBool(bool val_) +{ + clear(); + typ = VBOOL; + if (val_) + val = "1"; + return true; +} + +static bool validNumStr(const string& s) +{ + string tokenVal; + unsigned int consumed; + enum jtokentype tt = getJsonToken(tokenVal, consumed, s.c_str()); + return (tt == JTOK_NUMBER); +} + +bool UniValue::setNumStr(const string& val_) +{ + if (!validNumStr(val_)) + return false; + + clear(); + typ = VNUM; + val = val_; + return true; +} + +bool UniValue::setInt(uint64_t val) +{ + string s; + ostringstream oss; + + oss << val; + + return setNumStr(oss.str()); +} + +bool UniValue::setInt(int64_t val) +{ + string s; + ostringstream oss; + + oss << val; + + return setNumStr(oss.str()); +} + +bool UniValue::setFloat(double val) +{ + string s; + ostringstream oss; + + oss << val; + + return setNumStr(oss.str()); +} + +bool UniValue::setStr(const string& val_) +{ + clear(); + typ = VSTR; + val = val_; + return true; +} + +bool UniValue::setArray() +{ + clear(); + typ = VARR; + return true; +} + +bool UniValue::setObject() +{ + clear(); + typ = VOBJ; + return true; +} + +bool UniValue::push_back(const UniValue& val) +{ + if (typ != VARR) + return false; + + values.push_back(val); + return true; +} + +bool UniValue::push_backV(const std::vector<UniValue>& vec) +{ + if (typ != VARR) + return false; + + values.insert(values.end(), vec.begin(), vec.end()); + + return true; +} + +bool UniValue::pushKV(const std::string& key, const UniValue& val) +{ + if (typ != VOBJ) + return false; + + keys.push_back(key); + values.push_back(val); + return true; +} + +bool UniValue::pushKVs(const UniValue& obj) +{ + if (typ != VOBJ || obj.typ != VOBJ) + return false; + + for (unsigned int i = 0; i < obj.keys.size(); i++) { + keys.push_back(obj.keys[i]); + values.push_back(obj.values[i]); + } + + return true; +} + +int UniValue::findKey(const std::string& key) const +{ + for (unsigned int i = 0; i < keys.size(); i++) { + if (keys[i] == key) + return (int) i; + } + + return -1; +} + +bool UniValue::checkObject(const std::map<std::string,UniValue::VType>& t) +{ + for (std::map<std::string,UniValue::VType>::const_iterator it = t.begin(); + it != t.end(); it++) { + int idx = findKey(it->first); + if (idx < 0) + return false; + + if (values[idx].getType() != it->second) + return false; + } + + return true; +} + +const UniValue& UniValue::operator[](const std::string& key) const +{ + if (typ != VOBJ) + return nullValue; + + int index = findKey(key); + if (index < 0) + return nullValue; + + return values[index]; +} + +const UniValue& UniValue::operator[](unsigned int index) const +{ + if (typ != VOBJ && typ != VARR) + return nullValue; + if (index >= values.size()) + return nullValue; + + return values[index]; +} + +const char *uvTypeName(UniValue::VType t) +{ + switch (t) { + case UniValue::VNULL: return "null"; + case UniValue::VBOOL: return "bool"; + case UniValue::VOBJ: return "object"; + case UniValue::VARR: return "array"; + case UniValue::VSTR: return "string"; + case UniValue::VNUM: return "number"; + } + + // not reached + return NULL; +} + diff --git a/src/univalue/univalue.h b/src/univalue/univalue.h new file mode 100644 index 0000000000..5ac301d9e5 --- /dev/null +++ b/src/univalue/univalue.h @@ -0,0 +1,155 @@ +// Copyright 2014 BitPay Inc. +// Distributed under the MIT/X11 software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_UNIVALUE_UNIVALUE_H +#define BITCOIN_UNIVALUE_UNIVALUE_H + +#include <stdint.h> +#include <string> +#include <vector> +#include <map> +#include <cassert> + +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(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; } + std::string getValStr() const { return val; } + bool empty() const { return (values.size() == 0); } + + size_t count() 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 (!isTrue()); } + 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; +}; + +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); + +#endif // BITCOIN_UNIVALUE_UNIVALUE_H diff --git a/src/univalue/univalue_escapes.h b/src/univalue/univalue_escapes.h new file mode 100644 index 0000000000..0514118285 --- /dev/null +++ b/src/univalue/univalue_escapes.h @@ -0,0 +1,262 @@ +// Automatically generated file. Do not modify. +#ifndef BITCOIN_UNIVALUE_UNIVALUE_ESCAPES_H +#define BITCOIN_UNIVALUE_UNIVALUE_ESCAPES_H +static const char *escapes[256] = { + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + "\\b", + "\\t", + "\\n", + NULL, + "\\f", + "\\r", + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + "\\\"", + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + "\\/", + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + "\\\\", + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, +}; +#endif // BITCOIN_UNIVALUE_UNIVALUE_ESCAPES_H diff --git a/src/univalue/univalue_read.cpp b/src/univalue/univalue_read.cpp new file mode 100644 index 0000000000..405be3e81f --- /dev/null +++ b/src/univalue/univalue_read.cpp @@ -0,0 +1,390 @@ +// Copyright 2014 BitPay Inc. +// Distributed under the MIT/X11 software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include <string.h> +#include <vector> +#include <stdio.h> +#include "univalue.h" + +using namespace std; + +// convert hexadecimal string to unsigned integer +static const char *hatoui(const char *first, const char *last, + unsigned int& out) +{ + unsigned int result = 0; + for (; first != last; ++first) + { + int digit; + if (isdigit(*first)) + digit = *first - '0'; + + else if (*first >= 'a' && *first <= 'f') + digit = *first - 'a' + 10; + + else if (*first >= 'A' && *first <= 'F') + digit = *first - 'A' + 10; + + else + break; + + result = 16 * result + digit; + } + out = result; + + return first; +} + +enum jtokentype getJsonToken(string& tokenVal, unsigned int& consumed, + const char *raw) +{ + tokenVal.clear(); + consumed = 0; + + const char *rawStart = raw; + + while ((*raw) && (isspace(*raw))) // skip whitespace + raw++; + + switch (*raw) { + + case 0: + return JTOK_NONE; + + case '{': + raw++; + consumed = (raw - rawStart); + return JTOK_OBJ_OPEN; + case '}': + raw++; + consumed = (raw - rawStart); + return JTOK_OBJ_CLOSE; + case '[': + raw++; + consumed = (raw - rawStart); + return JTOK_ARR_OPEN; + case ']': + raw++; + consumed = (raw - rawStart); + return JTOK_ARR_CLOSE; + + case ':': + raw++; + consumed = (raw - rawStart); + return JTOK_COLON; + case ',': + raw++; + consumed = (raw - rawStart); + return JTOK_COMMA; + + case 'n': + case 't': + case 'f': + if (!strncmp(raw, "null", 4)) { + raw += 4; + consumed = (raw - rawStart); + return JTOK_KW_NULL; + } else if (!strncmp(raw, "true", 4)) { + raw += 4; + consumed = (raw - rawStart); + return JTOK_KW_TRUE; + } else if (!strncmp(raw, "false", 5)) { + raw += 5; + consumed = (raw - rawStart); + return JTOK_KW_FALSE; + } else + return JTOK_ERR; + + case '-': + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': { + // part 1: int + string numStr; + + const char *first = raw; + + const char *firstDigit = first; + if (!isdigit(*firstDigit)) + firstDigit++; + if ((*firstDigit == '0') && isdigit(firstDigit[1])) + return JTOK_ERR; + + numStr += *raw; // copy first char + raw++; + + if ((*first == '-') && (!isdigit(*raw))) + return JTOK_ERR; + + while ((*raw) && isdigit(*raw)) { // copy digits + numStr += *raw; + raw++; + } + + // part 2: frac + if (*raw == '.') { + numStr += *raw; // copy . + raw++; + + if (!isdigit(*raw)) + return JTOK_ERR; + while ((*raw) && isdigit(*raw)) { // copy digits + numStr += *raw; + raw++; + } + } + + // part 3: exp + if (*raw == 'e' || *raw == 'E') { + numStr += *raw; // copy E + raw++; + + if (*raw == '-' || *raw == '+') { // copy +/- + numStr += *raw; + raw++; + } + + if (!isdigit(*raw)) + return JTOK_ERR; + while ((*raw) && isdigit(*raw)) { // copy digits + numStr += *raw; + raw++; + } + } + + tokenVal = numStr; + consumed = (raw - rawStart); + return JTOK_NUMBER; + } + + case '"': { + raw++; // skip " + + string valStr; + + while (*raw) { + if (*raw < 0x20) + return JTOK_ERR; + + else if (*raw == '\\') { + raw++; // skip backslash + + switch (*raw) { + case '"': valStr += "\""; break; + case '\\': valStr += "\\"; break; + case '/': valStr += "/"; break; + case 'b': valStr += "\b"; break; + case 'f': valStr += "\f"; break; + case 'n': valStr += "\n"; break; + case 'r': valStr += "\r"; break; + case 't': valStr += "\t"; break; + + case 'u': { + char buf[4] = {0,0,0,0}; + char *last = &buf[0]; + unsigned int codepoint; + if (hatoui(raw + 1, raw + 1 + 4, codepoint) != + raw + 1 + 4) + return JTOK_ERR; + + if (codepoint <= 0x7f) + *last = (char)codepoint; + else if (codepoint <= 0x7FF) { + *last++ = (char)(0xC0 | (codepoint >> 6)); + *last = (char)(0x80 | (codepoint & 0x3F)); + } else if (codepoint <= 0xFFFF) { + *last++ = (char)(0xE0 | (codepoint >> 12)); + *last++ = (char)(0x80 | ((codepoint >> 6) & 0x3F)); + *last = (char)(0x80 | (codepoint & 0x3F)); + } + + valStr += buf; + raw += 4; + break; + } + default: + return JTOK_ERR; + + } + + raw++; // skip esc'd char + } + + else if (*raw == '"') { + raw++; // skip " + break; // stop scanning + } + + else { + valStr += *raw; + raw++; + } + } + + tokenVal = valStr; + consumed = (raw - rawStart); + return JTOK_STRING; + } + + default: + return JTOK_ERR; + } +} + +bool UniValue::read(const char *raw) +{ + clear(); + + bool expectName = false; + bool expectColon = false; + vector<UniValue*> stack; + + enum jtokentype tok = JTOK_NONE; + enum jtokentype last_tok = JTOK_NONE; + while (1) { + last_tok = tok; + + string tokenVal; + unsigned int consumed; + tok = getJsonToken(tokenVal, consumed, raw); + if (tok == JTOK_NONE || tok == JTOK_ERR) + break; + raw += consumed; + + switch (tok) { + + case JTOK_OBJ_OPEN: + case JTOK_ARR_OPEN: { + VType utyp = (tok == JTOK_OBJ_OPEN ? VOBJ : VARR); + if (!stack.size()) { + if (utyp == VOBJ) + setObject(); + else + setArray(); + stack.push_back(this); + } else { + UniValue tmpVal(utyp); + UniValue *top = stack.back(); + top->values.push_back(tmpVal); + + UniValue *newTop = &(top->values.back()); + stack.push_back(newTop); + } + + if (utyp == VOBJ) + expectName = true; + break; + } + + case JTOK_OBJ_CLOSE: + case JTOK_ARR_CLOSE: { + if (!stack.size() || expectColon || (last_tok == JTOK_COMMA)) + return false; + + VType utyp = (tok == JTOK_OBJ_CLOSE ? VOBJ : VARR); + UniValue *top = stack.back(); + if (utyp != top->getType()) + return false; + + stack.pop_back(); + expectName = false; + break; + } + + case JTOK_COLON: { + if (!stack.size() || expectName || !expectColon) + return false; + + UniValue *top = stack.back(); + if (top->getType() != VOBJ) + return false; + + expectColon = false; + break; + } + + case JTOK_COMMA: { + if (!stack.size() || expectName || expectColon || + (last_tok == JTOK_COMMA) || (last_tok == JTOK_ARR_OPEN)) + return false; + + UniValue *top = stack.back(); + if (top->getType() == VOBJ) + expectName = true; + break; + } + + case JTOK_KW_NULL: + case JTOK_KW_TRUE: + case JTOK_KW_FALSE: { + if (!stack.size() || expectName || expectColon) + return false; + + UniValue tmpVal; + switch (tok) { + case JTOK_KW_NULL: + // do nothing more + break; + case JTOK_KW_TRUE: + tmpVal.setBool(true); + break; + case JTOK_KW_FALSE: + tmpVal.setBool(false); + break; + default: /* impossible */ break; + } + + UniValue *top = stack.back(); + top->values.push_back(tmpVal); + + break; + } + + case JTOK_NUMBER: { + if (!stack.size() || expectName || expectColon) + return false; + + UniValue tmpVal(VNUM, tokenVal); + UniValue *top = stack.back(); + top->values.push_back(tmpVal); + + break; + } + + case JTOK_STRING: { + if (!stack.size()) + return false; + + UniValue *top = stack.back(); + + if (expectName) { + top->keys.push_back(tokenVal); + expectName = false; + expectColon = true; + } else { + UniValue tmpVal(VSTR, tokenVal); + top->values.push_back(tmpVal); + } + + break; + } + + default: + return false; + } + } + + if (stack.size() != 0) + return false; + + return true; +} + diff --git a/src/univalue/univalue_write.cpp b/src/univalue/univalue_write.cpp new file mode 100644 index 0000000000..9565cfa11a --- /dev/null +++ b/src/univalue/univalue_write.cpp @@ -0,0 +1,125 @@ +// Copyright 2014 BitPay Inc. +// Distributed under the MIT/X11 software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include <ctype.h> +#include <stdio.h> +#include "univalue.h" +#include "univalue_escapes.h" + +// TODO: Using UTF8 + +using namespace std; + +static string json_escape(const string& inS) +{ + string outS; + outS.reserve(inS.size() * 2); + + for (unsigned int i = 0; i < inS.size(); i++) { + unsigned char ch = inS[i]; + const char *escStr = escapes[ch]; + + if (escStr) + outS += escStr; + + else if (isprint(ch)) + outS += ch; + + else { + char tmpesc[16]; + sprintf(tmpesc, "\\u%04x", ch); + outS += tmpesc; + } + } + + return outS; +} + +string UniValue::write(unsigned int prettyIndent, + unsigned int indentLevel) const +{ + string s; + s.reserve(1024); + + unsigned int modIndent = indentLevel; + if (modIndent == 0) + modIndent = 1; + + switch (typ) { + case VNULL: + s += "null"; + break; + case VOBJ: + writeObject(prettyIndent, modIndent, s); + break; + case VARR: + writeArray(prettyIndent, modIndent, s); + break; + case VSTR: + s += "\"" + json_escape(val) + "\""; + break; + case VNUM: + s += val; + break; + case VBOOL: + s += (val == "1" ? "true" : "false"); + break; + } + + return s; +} + +static void indentStr(unsigned int prettyIndent, unsigned int indentLevel, string& s) +{ + s.append(prettyIndent * indentLevel, ' '); +} + +void UniValue::writeArray(unsigned int prettyIndent, unsigned int indentLevel, string& s) const +{ + s += "["; + if (prettyIndent) + s += "\n"; + + for (unsigned int i = 0; i < values.size(); i++) { + if (prettyIndent) + indentStr(prettyIndent, indentLevel, s); + s += values[i].write(prettyIndent, indentLevel + 1); + if (i != (values.size() - 1)) { + s += ","; + if (prettyIndent) + s += " "; + } + if (prettyIndent) + s += "\n"; + } + + if (prettyIndent) + indentStr(prettyIndent, indentLevel - 1, s); + s += "]"; +} + +void UniValue::writeObject(unsigned int prettyIndent, unsigned int indentLevel, string& s) const +{ + s += "{"; + if (prettyIndent) + s += "\n"; + + for (unsigned int i = 0; i < keys.size(); i++) { + if (prettyIndent) + indentStr(prettyIndent, indentLevel, s); + s += "\"" + json_escape(keys[i]) + "\":"; + if (prettyIndent) + s += " "; + s += values[i].write(prettyIndent, indentLevel + 1); + if (i != (values.size() - 1)) + s += ","; + if (prettyIndent) + s += "\n"; + } + + if (prettyIndent) + indentStr(prettyIndent, indentLevel - 1, s); + s += "}"; +} + |