mirror of https://github.com/bitcoin/bitcoin
115 lines
2.7 KiB
C++
115 lines
2.7 KiB
C++
// Copyright 2014 BitPay Inc.
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or https://opensource.org/licenses/mit-license.php.
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#include <univalue.h>
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#include <univalue_escapes.h>
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#include <memory>
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#include <string>
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#include <vector>
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static std::string json_escape(const std::string& inS)
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{
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std::string outS;
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outS.reserve(inS.size() * 2);
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for (unsigned int i = 0; i < inS.size(); i++) {
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unsigned char ch = static_cast<unsigned char>(inS[i]);
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const char *escStr = escapes[ch];
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if (escStr)
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outS += escStr;
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else
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outS += static_cast<char>(ch);
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}
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return outS;
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}
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std::string UniValue::write(unsigned int prettyIndent,
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unsigned int indentLevel) const
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{
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std::string s;
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s.reserve(1024);
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unsigned int modIndent = indentLevel;
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if (modIndent == 0)
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modIndent = 1;
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switch (typ) {
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case VNULL:
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s += "null";
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break;
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case VOBJ:
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writeObject(prettyIndent, modIndent, s);
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break;
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case VARR:
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writeArray(prettyIndent, modIndent, s);
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break;
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case VSTR:
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s += "\"" + json_escape(val) + "\"";
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break;
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case VNUM:
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s += val;
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break;
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case VBOOL:
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s += (val == "1" ? "true" : "false");
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break;
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}
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return s;
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}
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static void indentStr(unsigned int prettyIndent, unsigned int indentLevel, std::string& s)
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{
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s.append(prettyIndent * indentLevel, ' ');
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}
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void UniValue::writeArray(unsigned int prettyIndent, unsigned int indentLevel, std::string& s) const
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{
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s += "[";
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if (prettyIndent)
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s += "\n";
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for (unsigned int i = 0; i < values.size(); i++) {
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if (prettyIndent)
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indentStr(prettyIndent, indentLevel, s);
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s += values[i].write(prettyIndent, indentLevel + 1);
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if (i != (values.size() - 1)) {
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s += ",";
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}
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if (prettyIndent)
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s += "\n";
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}
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if (prettyIndent)
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indentStr(prettyIndent, indentLevel - 1, s);
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s += "]";
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}
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void UniValue::writeObject(unsigned int prettyIndent, unsigned int indentLevel, std::string& s) const
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{
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s += "{";
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if (prettyIndent)
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s += "\n";
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for (unsigned int i = 0; i < keys.size(); i++) {
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if (prettyIndent)
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indentStr(prettyIndent, indentLevel, s);
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s += "\"" + json_escape(keys[i]) + "\":";
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if (prettyIndent)
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s += " ";
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s += values.at(i).write(prettyIndent, indentLevel + 1);
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if (i != (values.size() - 1))
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s += ",";
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if (prettyIndent)
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s += "\n";
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}
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if (prettyIndent)
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indentStr(prettyIndent, indentLevel - 1, s);
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s += "}";
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}
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