3DPrinting/PrusaSlicer-NonPlainar
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Finalized the config import from a G-code.

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This commit is contained in:
bubnikv 2017-06-14 18:53:11 +02:00
parent 93dce7a2d3
commit f7334f58d3
1 changed files with 23 additions and 9 deletions
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32
xs/src/libslic3r/Config.cpp
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@ -314,15 +314,17 @@ void ConfigBase::load_from_gcode(const std::string &file)
// 1) Read a 64k block from the end of the G-code.
boost::nowide::ifstream ifs(file);
ifs.seekg(0, ifs.end);
auto length = std::min<std::fstream::streampos>(65535, ifs.tellg());
ifs.seekg(std::min(length, length), ifs.end);
std::vector<char> data(size_t(length) + 1, 0);
ifs.read(data.data(), length);
auto file_length = ifs.tellg();
auto data_length = std::min<std::fstream::streampos>(65535, file_length);
ifs.seekg(file_length - data_length, ifs.beg);
std::vector<char> data(size_t(data_length) + 1, 0);
ifs.read(data.data(), data_length);
ifs.close();
// 2) Walk line by line in reverse until a non-configuration key appears.
char *data_start = data.data();
char *end = data_start + length;
// boost::nowide::ifstream seems to cook the text data somehow, so less then the 64k of characters may be retrieved.
char *end = data_start + strlen(data.data());
for (;;) {
// Extract next line.
for (-- end; end > data_start && (*end == '\r' || *end == '\n'); -- end);
@ -330,28 +332,40 @@ void ConfigBase::load_from_gcode(const std::string &file)
break;
char *start = end;
*(++ end) = 0;
for (-- start; start > data_start && *start != '\r' && *start != '\n'; -- start);
for (; start > data_start && *start != '\r' && *start != '\n'; -- start);
if (start == data_start)
break;
// Extracted a line from start to end. Extract the key = value pair.
if (end - start < 10 || start[0] != ';' || start[1] != ' ' || (start[2] == ' ' || start[2] == '\t'))
if (end - (++ start) < 10 || start[0] != ';' || start[1] != ' ')
break;
char *key = start + 2;
if (! (*key >= 'a' && *key <= 'z') || (*key >= 'A' && *key <= 'Z'))
// A key must start with a letter.
break;
char *sep = strchr(key, '=');
if (sep == nullptr)
if (sep == nullptr || sep[-1] != ' ' || sep[1] != ' ')
break;
char *value = sep + 2;
if (value >= end)
if (value > end)
break;
char *key_end = sep - 1;
if (key_end - key < 3)
break;
*key_end = 0;
// The key may contain letters, digits and underscores.
for (char *c = key; c != key_end; ++ c)
if (! ((*c >= 'a' && *c <= 'z') || (*c >= 'A' && *c <= 'Z') || (*c >= '0' && *c <= '9') || *c == '_')) {
key = nullptr;
break;
}
if (key == nullptr)
break;
try {
this->set_deserialize(key, value);
} catch (UnknownOptionException & /* e */) {
// ignore
}
end = start;
}
}