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authorJeff Garzik <jgarzik@bitpay.com>2014-06-23 23:16:33 -0400
committerJeff Garzik <jgarzik@bitpay.com>2014-07-29 11:13:27 -0400
commitb2aeaa79393608132104183eba117fcbf583148e (patch)
tree98bc68b1a815c0afe644e56e6fa6eb47297fe355 /src/core_read.cpp
parentae775b5b311982a3d932a9e34ddc94ce597dcaaf (diff)
Move ParseScript() helper, becoming accessible outside src/test/
Diffstat (limited to 'src/core_read.cpp')
-rw-r--r--src/core_read.cpp77
1 files changed, 77 insertions, 0 deletions
diff --git a/src/core_read.cpp b/src/core_read.cpp
index 937dcd9c12..d5d3cca480 100644
--- a/src/core_read.cpp
+++ b/src/core_read.cpp
@@ -3,8 +3,85 @@
#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)
{