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//
// Created by Marek Kotewicz on 28/04/15.
//
#include <iostream>
#include <algorithm>
#include <libdevcore/Log.h>
#include "JSConsole.h"
#include "libjsconsole/JSConsoleResources.hpp"
// TODO: readline!
#include <readline/readline.h>
#include <readline/history.h>
using namespace std;
using namespace dev;
using namespace dev::eth;
JSConsole::JSConsole(): m_engine(), m_printer(m_engine)
{
JSConsoleResources resources;
string web3 = resources.loadResourceAsString("web3");
m_engine.eval(web3.c_str());
m_engine.eval("web3 = require('web3');");
}
void JSConsole::repl() const
{
string cmd = "";
g_logPost = [](std::string const& a, char const*) { cout << "\r \r" << a << endl << flush; rl_forced_update_display(); };
bool isEmpty = true;
int openBrackets = 0;
do {
char* buff = readline(promptForIndentionLevel(openBrackets).c_str());
isEmpty = !(buff && *buff);
if (!isEmpty)
{
cmd += string(buff);
cmd += " ";
free(buff);
int open = count(cmd.begin(), cmd.end(), '{');
open += count(cmd.begin(), cmd.end(), '(');
int closed = count(cmd.begin(), cmd.end(), '}');
closed += count(cmd.begin(), cmd.end(), ')');
openBrackets = open - closed;
}
} while (openBrackets > 0);
if (!isEmpty)
{
add_history(cmd.c_str());
auto value = m_engine.eval(cmd.c_str());
string result = m_printer.prettyPrint(value);
cout << result << endl;
}
}
std::string JSConsole::promptForIndentionLevel(int _i) const
{
if (_i == 0)
return "> ";
return string((_i + 1) * 2, ' ');
}