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#include <vector>
#include "core_io.h"
#include "core.h"
#include "serialize.h"
#include "script.h"
#include <boost/assign/list_of.hpp>
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/algorithm/string/split.hpp>
#include <boost/algorithm/string/replace.hpp>
using namespace std;
using namespace boost;
using namespace boost::algorithm;
CScript ParseScript(std::string s)
{
CScript result;
static map<string, opcodetype> mapOpNames;
if (mapOpNames.size() == 0)
{
for (int op = 0; op <= OP_NOP10; op++)
{
// Allow OP_RESERVED to get into mapOpNames
if (op < OP_NOP && op != OP_RESERVED)
continue;
const char* name = GetOpName((opcodetype)op);
if (strcmp(name, "OP_UNKNOWN") == 0)
continue;
string strName(name);
mapOpNames[strName] = (opcodetype)op;
// Convenience: OP_ADD and just ADD are both recognized:
replace_first(strName, "OP_", "");
mapOpNames[strName] = (opcodetype)op;
}
}
vector<string> words;
split(words, s, is_any_of(" \t\n"), token_compress_on);
BOOST_FOREACH(string w, words)
{
if (w.size() == 0)
{
// Empty string, ignore. (boost::split given '' will return one word)
}
else if (all(w, is_digit()) ||
(starts_with(w, "-") && all(string(w.begin()+1, w.end()), is_digit())))
{
// Number
int64_t n = atoi64(w);
result << n;
}
else if (starts_with(w, "0x") && IsHex(string(w.begin()+2, w.end())))
{
// Raw hex data, inserted NOT pushed onto stack:
std::vector<unsigned char> raw = ParseHex(string(w.begin()+2, w.end()));
result.insert(result.end(), raw.begin(), raw.end());
}
else if (w.size() >= 2 && starts_with(w, "'") && ends_with(w, "'"))
{
// Single-quoted string, pushed as data. NOTE: this is poor-man's
// parsing, spaces/tabs/newlines in single-quoted strings won't work.
std::vector<unsigned char> value(w.begin()+1, w.end()-1);
result << value;
}
else if (mapOpNames.count(w))
{
// opcode, e.g. OP_ADD or ADD:
result << mapOpNames[w];
}
else
{
throw runtime_error("script parse error");
}
}
return result;
}
bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx)
{
if (!IsHex(strHexTx))
return false;
vector<unsigned char> txData(ParseHex(strHexTx));
CDataStream ssData(txData, SER_NETWORK, PROTOCOL_VERSION);
try {
ssData >> tx;
}
catch (std::exception &e) {
return false;
}
return true;
}
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