This commit is contained in:
VaclavT 2021-02-14 09:09:42 +01:00
parent 6e2eb11bf9
commit e1465ae786
2 changed files with 37 additions and 49 deletions

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@ -1,21 +1,28 @@
### TODO
- construct list for parse-csv in csvparse.cpp instead of ml.cpp
- support for strings with " included
- update openssl libs
- documentation
- add url of source/inspiration to clib/*.cpp
- load std lib when starting
- add more command line args
- split into more files
- prejmenovat ivaluize
- add some debug support??
- add instrumentation (time, nr of evals, debug info, debug environment etc)
#### Functionality
- readline
- cvs read
- url read
- json
- execute system command
- printf
- env
- support for including lib
- date support
- file functions
- name it here
- string funtions
- name it here
- add hash datatype
#### Performance
@ -28,3 +35,20 @@
time ./build/ml -c '(include "../example.lisp") (print (fact 1000))'
./build/ml -f debug.lisp
```
### Links
https://www.tutorialspoint.com/lisp/index.htm
https://github.com/adam-mcdaniel/wisp
https://github.com/dropbox/json11
#### std::vector
https://stackoverflow.com/questions/12271017/initial-capacity-of-vector-in-c
https://baptiste-wicht.com/posts/2012/12/cpp-benchmark-vector-list-deque.html
#### parse http headers in c++
```
^(?:((?:https?|s?ftp):)\/\/)([^:\/\s]+)(?::(\d*))?(?:\/([^\s?#]+)?([?][^?#]*)?(#.*)?)?
```
https://stackoverflow.com/questions/25896916/parse-http-headers-in-c

54
ml.cpp
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@ -117,20 +117,6 @@ bool is_symbol(char ch) {
return (isalpha(ch) || ispunct(ch)) && ch != '(' && ch != ')' && ch != '"' && ch != '\'';
}
// std::regex int_underscored_regex("[0-9][0-9_]+[0-9]");
std::regex int_regex("[0-9]+");
std::regex double_regex("[0-9]+\\.[0-9]+");
// Is string representing int value
bool is_string_int(const std::string &str) {
return std::regex_match(str, int_regex);
}
// Is string representing float value
bool is_string_float(const std::string &str) {
return std::regex_match(str, double_regex);
}
////////////////////////////////////////////////////////////////////////////////
/// LISP CONSTRUCTS ////////////////////////////////////////////////////////////
@ -1148,30 +1134,7 @@ namespace builtin {
std::vector<std::vector<std::string> > parsed_data; // TODO some default size here
csv.parseCSV(args[0].as_string(), parsed_data);
int rows = parsed_data.size();
int cols = rows > 0 ? parsed_data[0].size() : 0;
std::vector<MlValue> result;
if (rows > 0 && cols > 0) {
for (int r = 0; r < rows; r++) {
std::vector<MlValue> row;
for (int c = 0; c < cols; c++) {
std::string value = parsed_data[r][c];
if (is_string_int(value)) {
row.push_back(MlValue(stoi(value)));
}
if (is_string_float(value)) {
row.push_back(MlValue(std::stod(value)));
} else {
row.push_back(MlValue::string(value));
}
}
result.push_back(row);
}
}
return MlValue(result);
return csv.ivalualize(parsed_data);
}
// Get the contents of a file
@ -1208,21 +1171,22 @@ namespace builtin {
eval_args(args, env);
// PERF optimize it for memory usage and performance
// TODO handle second parameter (headers)
if (args.size() != 1)
throw MlError(MlValue("read_url", read_url), env, args.size() > 1 ? TOO_MANY_ARGS : TOO_FEW_ARGS);
if (args.size() < 1 || args.size() > 2)
throw MlError(MlValue("read_url", read_url), env, args.size() < 1 ? TOO_FEW_ARGS : TOO_MANY_ARGS);
std::unordered_map<std::string, std::string> headers = {};
HttpClient client;
if (args.size() == 2) {
// do magick here
// for (auto i = map.begin(); i != map.end(); ++i) {
// headers[i->first] = i->second.getString();
// }
for(const auto& pair_list: args[1].as_list()[0].as_list()) {
// TODO check its 2 string elements list
const auto& pair = pair_list.as_list();
headers[pair[0].as_string()] = pair[1].as_string();
}
}
std::pair<int, std::string> result = client.doGetRequest(args[0].as_string(), headers);
// TODO add helper function for this
std::vector<MlValue> lst;
lst.push_back(MlValue(result.first));
lst.push_back(MlValue::string(result.second));