REMOVED USER_STD macros, code formating, csv changes, few file functions

ml_io.cpp

@@ -0,0 +1,62 @@
+
+#include "ml_io.h"
+
+#include <dirent.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+
+std::string read_file_contents(const std::string &filename) {
+	std::ifstream f;
+	f.open(filename.c_str());
+	if (!f)
+		throw std::runtime_error("could not open file");
+
+	f.seekg(0, std::ios::end);
+	std::string contents;
+	contents.reserve(f.tellg());
+	f.seekg(0, std::ios::beg);
+	contents.assign(std::istreambuf_iterator<char>(f),
+			std::istreambuf_iterator<char>());
+	f.close();
+
+	return contents;
+}
+
+MlValue list_dir(const std::string &path) {
+	std::vector<MlValue> entries;
+
+	DIR *dirp = opendir(path.c_str());
+	if (dirp == NULL) {
+		// handle error - probably not a dir or non existing path
+	}
+	struct dirent *dp;
+	while ((dp = readdir(dirp)) != NULL) {
+		entries.push_back(MlValue::string(dp->d_name));
+	}
+	closedir(dirp);
+
+	return MlValue(entries);
+}
+
+bool is_path_file(const std::string &path) {
+	std::ifstream ifile(path.c_str());
+	return (bool) ifile;
+}
+
+bool is_path_dir(const std::string &path) {
+	struct stat buf;
+	stat(path.c_str(), &buf);
+	return (bool) S_ISDIR(buf.st_mode);
+}
+
+int mk_dir(const std::string &path) {
+	int r = ::mkdir(path.c_str(), 0755);
+	return r;
+}
+
+int rm_dir(const std::string &path) {
+	int r = ::rmdir(path.c_str());
+	return r;
+}
+