- Removed a bug with attempt to include pure c headers

- Added some more information about the license
 - fennec::file implementation

source/fproc/io/common.cpp

@@ -18,3 +18,250 @@
 
 #include <fennec/fproc/io/common.h>
 
+#ifdef _WIN32
+
+namespace fennec
+{
+
+string getcwd() {
+	char cstr[MAX_PATH];
+	if (GetCurrentDirectory(sizeof(str), str) == 0) {
+		return string("");
+	}
+	string result(cstr);
+	return result;
+}
+
+}
+
+#else
+
+#include <unistd.h>
+#include <linux/limits.h>
+
+namespace fennec
+{
+
+string getcwd() {
+	char cstr[PATH_MAX];
+	if (::getcwd(cstr, sizeof(cstr)) == NULL) {
+		return string("");
+	}
+	return string(cstr, strlen(cstr));
+}
+
+string absolute(const cstring& path) {
+
+	// first determine if this is already an absolute path
+#ifdef _WIN32
+	if (path[1] == ':') {
+		return path;
+	}
+#else
+	if (path[0] == '/') {
+		return path;
+	}
+#endif
+
+	string parse = path;
+	string res = getcwd();
+
+	size_t len = res.length();
+#ifdef _WIN32
+	if (res[len - 1] == '/' || res[len - 1] == '\\') {
+#else
+	if (res[len - 1] == '/') {
+#endif
+		res = res.substring(0, len);
+	}
+
+	while (parse.size() > 1) {
+
+		// Parse for relative symbols
+		while (parse[0] == '.') {
+
+#ifdef _WIN32
+			// up
+			if (parse[1] == '.' && (parse[2] == '/' || parse[2] == '\\')) {
+				size_t r = res.rfind('/');
+				size_t l = res.rfind('\\');
+				size_t size = res.size();
+				if (r == size) {
+					size = l;
+				}
+				else if (l == size) {
+					size = r;
+				}
+				else {
+					size = max(r, l);
+				}
+				size = max(size, 1);
+				res = res.substring(0, size);
+			}
+			// rel
+			else if (parse[1] == '/' || parse[1] == '\\') {
+				parse = parse.substring(2);
+			}
+#else
+			// up
+			if (parse[1] == '.' && parse[2] == '/') {
+				size_t r = res.rfind('/');
+				res = res.substring(0, max(res.rfind('/'), static_cast<size_t>(1)));
+				parse = parse.substring(2);
+			}
+			// rel
+			else if (parse[1] == '/') {
+				parse = parse.substring(1);
+			}
+#endif
+			else {
+				break;
+			}
+		}
+
+		// get the pos of the first directory separator
+#ifdef _WIN32
+		size_t pos = min(parse.find('\\', 1), parse.find('/', 1));
+#else
+		size_t pos = parse.find('/', 1);
+		size_t off = 0;
+#endif
+		if (pos != parse.size()) {
+			if (parse[pos + 1] == '.') {
+				if (parse[pos + 2] == '/') {
+					off = 1;
+				}
+				else if (parse[pos + 2] == '.' && parse[pos + 3] == '/') {
+					off = 1;
+				}
+			}
+			else if (parse[pos + 1] == '/') {
+				off = 1;
+			}
+		}
+
+		// add this part
+		string sub = parse.substring(0, pos);
+		parse = parse.substring(pos + off);
+		res += sub;
+	}
+
+	return res;
+}
+
+string absolute(const string& path) {
+
+	// first determine if this is already an absolute path
+#ifdef _WIN32
+	if (path[1] == ':') {
+		return path;
+	}
+#else
+	if (path[0] == '/') {
+		return path;
+	}
+#endif
+
+	string parse = path;
+	string res = getcwd();
+
+	size_t len = res.length();
+#ifdef _WIN32
+	if (res[len - 1] == '/' || res[len - 1] == '\\') {
+#else
+	if (res[len - 1] == '/') {
+#endif
+		res = res.substring(0, len);
+	}
+
+	while (parse.size() > 1) {
+
+		// Parse for relative symbols
+		while (parse[0] == '.') {
+
+#ifdef _WIN32
+			// up
+			if (parse[1] == '.' && (parse[2] == '/' || parse[2] == '\\')) {
+				size_t r = res.rfind('/');
+				size_t l = res.rfind('\\');
+				size_t size = res.size();
+				if (r == size) {
+					size = l;
+				}
+				else if (l == size) {
+					size = r;
+				}
+				else {
+					size = max(r, l);
+				}
+				size = max(size, 1);
+				res = res.substring(0, size);
+			}
+			// rel
+			else if (parse[1] == '/' || parse[1] == '\\') {
+				parse = parse.substring(2);
+			}
+#else
+			// up
+			if (parse[1] == '.' && parse[2] == '/') {
+				size_t r = res.rfind('/');
+				res = res.substring(0, max(res.rfind('/'), static_cast<size_t>(1)));
+				parse = parse.substring(2);
+			}
+			// rel
+			else if (parse[1] == '/') {
+				parse = parse.substring(1);
+			}
+#endif
+			else {
+				break;
+			}
+		}
+
+		// get the pos of the first directory separator
+#ifdef _WIN32
+		size_t pos = min(parse.find('\\', 1), parse.find('/', 1));
+		size_t off = 0;
+		if (pos != parse.size()) {
+			if (parse[pos + 1] == '.') {
+				if (parse[pos + 2] == '/' || parse[pos + 2] == '\\') {
+					off = 1;
+				}
+				else if (parse[pos + 2] == '.' && (parse[pos + 3] == '/' || parse[pos + 3] == '\\')) {
+					off = 1;
+				}
+			}
+			else if (parse[pos + 1] == '/' || parse[pos + 1] == '\\') {
+				off = 1;
+			}
+		}
+#else
+		size_t pos = parse.find('/', 1);
+		size_t off = 0;
+		if (pos != parse.size()) {
+			if (parse[pos + 1] == '.') {
+				if (parse[pos + 2] == '/') {
+					off = 1;
+				}
+				else if (parse[pos + 2] == '.' && parse[pos + 3] == '/') {
+					off = 1;
+				}
+			}
+			else if (parse[pos + 1] == '/') {
+				off = 1;
+			}
+		}
+#endif
+
+		// add this part
+		string sub = parse.substring(0, pos);
+		parse = parse.substring(pos + off);
+		res += sub;
+	}
+
+	return res;
+}
+
+#endif
+
+}