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// 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"
// TODO: Using UTF8
using namespace std;
static bool initEscapes;
static const char *escapes[256];
static void initJsonEscape()
{
escapes['"'] = "\\\"";
escapes['\\'] = "\\\\";
escapes['/'] = "\\/";
escapes['\b'] = "\\b";
escapes['\f'] = "\\f";
escapes['\n'] = "\\n";
escapes['\r'] = "\\r";
escapes['\t'] = "\\t";
initEscapes = true;
}
static string json_escape(const string& inS)
{
if (!initEscapes)
initJsonEscape();
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 string spaceStr;
static string indentStr(unsigned int prettyIndent, unsigned int indentLevel)
{
unsigned int spaces = prettyIndent * indentLevel;
while (spaceStr.size() < spaces)
spaceStr += " ";
return spaceStr.substr(0, spaces);
}
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)
s += indentStr(prettyIndent, indentLevel);
s += values[i].write(prettyIndent, indentLevel + 1);
if (i != (values.size() - 1))
s += ", ";
if (prettyIndent)
s += "\n";
}
if (prettyIndent)
s += indentStr(prettyIndent, indentLevel - 1);
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)
s += indentStr(prettyIndent, indentLevel);
s += "\"" + json_escape(keys[i]) + "\": ";
s += values[i].write(prettyIndent, indentLevel + 1);
if (i != (values.size() - 1))
s += ",";
if (prettyIndent)
s += "\n";
}
if (prettyIndent)
s += indentStr(prettyIndent, indentLevel - 1);
s += "}";
}
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