A fairly straightforward question. Two answers. One saying, “Yes.” The other saying, “No!” Both with significant upvotes. Who to believe? Let me attempt to clarify. Both answers have some truth to them, and it depends on what you mean by a file being closed. First, consider what is meant by closing a file from the … Read more
For most purposes, you probably won’t notice a difference. However, foreach reads each line into a list (not an array) before going through it line by line, whereas while reads one line at a time. As foreach will use more memory and require processing time upfront, it is generally recommended to use while to iterate … Read more
This should work: $line=””; $f = fopen(‘data.txt’, ‘r’); $cursor = -1; fseek($f, $cursor, SEEK_END); $char = fgetc($f); /** * Trim trailing newline chars of the file */ while ($char === “\n” || $char === “\r”) { fseek($f, $cursor–, SEEK_END); $char = fgetc($f); } /** * Read until the start of file or first newline char … Read more
If you mean PDB as in a “program database” that the debugger uses: PDB files contain data about a file such as an EXE or DLL that is used to aid in debugging. There are public interfaces that allow you to extract data from the file. See examples here: https://learn.microsoft.com/en-us/archive/blogs/jmstall/sample-code-for-pdb-2-xml-tool (Moved from http://blogs.msdn.com/jmstall/archive/2005/08/25/pdb2xml.aspx) http://www.codeproject.com/KB/bugs/PdbParser.aspx If … Read more
Directory.GetFiles doesn’t support RegEx by default, what you can do is to filter by RegEx on your file list. Take a look at this listing: Regex reg = new Regex(@”^^(?!p_|t_).*”); var files = Directory.GetFiles(yourPath, “*.png; *.jpg; *.gif”) .Where(path => reg.IsMatch(path)) .ToList();
const char *get_filename_ext(const char *filename) { const char *dot = strrchr(filename, ‘.’); if(!dot || dot == filename) return “”; return dot + 1; } printf(“%s\n”, get_filename_ext(“test.tiff”)); printf(“%s\n”, get_filename_ext(“test.blah.tiff”)); printf(“%s\n”, get_filename_ext(“test.”)); printf(“%s\n”, get_filename_ext(“test”)); printf(“%s\n”, get_filename_ext(“…”));
I would say it’s possible, by playing with TarInfo e TarFile.addfile passing a StringIO as a fileobject. Very rough, but works import tarfile import StringIO tar = tarfile.TarFile(“test.tar”,”w”) string = StringIO.StringIO() string.write(“hello”) string.seek(0) info = tarfile.TarInfo(name=”foo”) info.size=len(string.buf) tar.addfile(tarinfo=info, fileobj=string) tar.close()
This code actually returns the good creation date to me: NSFileManager* fm = [NSFileManager defaultManager]; NSDictionary* attrs = [fm attributesOfItemAtPath:path error:nil]; if (attrs != nil) { NSDate *date = (NSDate*)[attrs objectForKey: NSFileCreationDate]; NSLog(@”Date Created: %@”, [date description]); } else { NSLog(@”Not found”); } Are you creating the file inside the App? Maybe that’s where the … Read more
A simple solution, which doesn’t require storing the entire file in memory (e.g with file.readlines() or an equivalent construct): with open(‘filename.txt’) as f: for line in f: pass last_line = line For large files it would be more efficient to seek to the end of the file, and move backwards to find a newline, e.g.: … Read more
This code Future<List<String>> readHeaderData() async { List<String> l = new List(); List<String> files = await readHeaders(); // Gets filenames files.forEach((filename) async { final file = await File(filename); String contents = await file.readAsString(); User user = User.fromJson(json.decode(contents)); String name = user.NameLast + “, ” + user.NameFirst; print(name); l.add(name); } return l; } returns the list l … Read more