1 files changed, 97 insertions, 0 deletions
diff --git a/tools/msgenc/MessagesConverter.cpp b/tools/msgenc/MessagesConverter.cpp
new file mode 100644
index 00000000..ff75f7d7
--- /dev/null
+++ b/tools/msgenc/MessagesConverter.cpp
@@ -0,0 +1,97 @@
+#include "MessagesConverter.h"
+
+void MessagesConverter::CharmapRegisterCharacter(string &code, uint16_t value)
+{
+    throw runtime_error("calling parent class method MessagesConverter::CharmapRegisterCharacter when child class method is required");
+}
+
+void MessagesConverter::CmdmapRegisterCommand(string &command, uint16_t value)
+{
+    throw runtime_error("calling parent class method MessagesConverter::CmdmapRegisterCommand when child class method is required");
+}
+
+string MessagesConverter::ReadTextFile(string& filename) {
+    ifstream file(filename);
+    if (!file.good()) {
+        throw ifstream::failure("unable to open file \"" + filename + "\" for reading");
+    }
+    stringstream ss;
+    ss << file.rdbuf();
+    file.close();
+    return ss.str();
+}
+
+void MessagesConverter::WriteTextFile(string& filename, string const& contents) {
+    ofstream file(filename);
+    if (!file.good()) {
+        throw ofstream::failure("unable to open file \"" + filename + "\" for writing");
+    }
+    file << contents;
+    file.close();
+}
+
+void MessagesConverter::ReadCharmap() {
+    string raw = ReadTextFile(charmapfilename);
+    string line;
+    size_t pos, eqpos, last_pos, lineno = 0;
+
+    for (
+        last_pos = 0;
+        last_pos != string::npos && (pos = raw.find_first_of("\r\n", last_pos)) != string::npos;
+        last_pos = raw.find_last_of("\r\n", pos + 1, 2) + 1, lineno++
+    ) {
+        line = raw.substr(last_pos, pos - last_pos);
+        if (line.find("//") != string::npos) {
+            line = line.substr(0, line.find("//"));
+        }
+        if (line.find_first_not_of(" \t") == string::npos)
+            continue;
+        line = line.substr(
+            line.find_first_not_of(" \t")
+        );
+        eqpos = line.find('=');
+        if (eqpos == string::npos) {
+            stringstream s;
+            s << "charmap syntax error at " << (lineno + 1);
+            throw runtime_error(s.str());
+        }
+        string value = line.substr(0, eqpos);
+        string code = line.substr(eqpos + 1);
+        uint16_t value_i = stoi(value, nullptr, 16);
+        if (code[0] == '{' && code[code.length() - 1] == '}') {
+            code = code.substr(1, code.length() - 2);
+            CmdmapRegisterCommand(code, value_i);
+        } else {
+            CharmapRegisterCharacter(code, value_i);
+        }
+    }
+}
+
+uint16_t MessagesConverter::CalcCRC()
+{
+    uint16_t crc = 0;
+    for (char d : binfilename) {
+        for (int i = 0; i < 8; i++) {
+            crc = (crc & 0x8000) ? ((crc << 1) ^ 0x8003) : (crc << 1);
+            if (d & 0x80) crc ^= 1;
+            d <<= 1;
+        }
+    }
+    return crc;
+}
+
+void MessagesConverter::WriteBinaryDecoded(string &filename)
+{
+    ofstream outfile(filename, ios::binary);
+    if (!outfile.good()) {
+        throw ios::failure("Unable to open file " + filename + " for writing");
+    }
+    outfile.write((char *)&header, sizeof(header));
+    outfile.write((char *)alloc_table.data(), alloc_table.size() * sizeof(MsgAlloc));
+    for (auto msg : vec_encoded) {
+        outfile.write((char *)msg.data(), msg.size() * 2);
+    }
+    outfile.close();
+}
+
+MessagesConverter::~MessagesConverter() = default;