Questions tagged [file]
A block of arbitrary information, or resource for storing information, accessible by the string-based name or path. Files are available to computer programs and are usually based on some kind of persistent storage.
807
questions
-1
votes
1
answer
51
views
Handling exceptions of FileInputStream and XSSFWorkbook
Can you tear my code apart with code review comments?
Below is a simple method which reads an XLSX file and does some stuff with it.
I use FileInputStream and ...
- 109
3
votes
1
answer
42
views
Program using java.io that shows the content of a text file and every three lines the program stop reading, waiting to press Enter
I am doing a program in Java your text using java.io that shows the content of a text file and every three lines the program stop reading, waiting to press Enter. I dont know so much about programming,...
3
votes
2
answers
167
views
Add offset to all filenames
From all the files in a directory, the method shiftFilenamesOffset is to increment the numeric part (int) of the alphanumeric filename by offset each time, and ...
- 448
0
votes
1
answer
38
views
Ruby-function for reading, parsing a text-file, removing data-duplicates
Task description:
Implement a generate_unique_phone_numbers function.
The function shall parse the given text-file.
Content-example:
...
- 4,232
2
votes
1
answer
168
views
Swift-function: Copy directory recursively
Task description:
Implement a function, which accepts two paths: The path to a source-directory & the path to a target-directory. The function shall return true if the directory has become copied ...
- 4,232
1
vote
3
answers
96
views
Print last lines of file
Task
Write a Ruby function, which accepts a path to a text file and returns a string consisting of the last n lines in reversed order, separated by commas.
Example input file:
...
- 4,232
8
votes
5
answers
1k
views
Find out all the different files from two different paths efficiently in Windows (with Python)
Well, recently I'm working on a program which is able to sync files between different folders.
However, as a fresh man, the algorithm I worte seems feasible, but looks really disgusting, and ...
- 83
2
votes
2
answers
106
views
Increasing writing speed to file inside a for-loop for large files
I have a .csv file containing 100 millions records, I would to create multiple files from this file, after certain condition satisfied in each line, I came to this code below, but it is slow, I think, ...
- 309
1
vote
1
answer
208
views
Replacing NOUNS, VERBS, ADJECTIVES in a text file with input words
I've written code for a program that reads a text file, checking if there's any capitalized parts of speech of specific types (noun, adj, verb, adv) in the text and replace them with the user's chosen ...
- 113
6
votes
2
answers
226
views
ds - A directory switcher via tags in Windows command line
I have this repository.
The idea is that there is a file tags sitting in the users home directory, and which contains the tag declarations of the format ...
- 27k
4
votes
1
answer
138
views
System Utility to Create Random Files
The following program makes random files. By default, they are of the form /tmp/rfile-XXX. Certain options allow for the user to specify where these files are ...
- 79
0
votes
2
answers
60
views
Checking which programs are used for scripting
I have a directory where there are some script files, some binary files, and some subdirectories. I have tried to write a program which gets names of all files in directory, and excludes if they are ...
- 266
7
votes
2
answers
378
views
Copy file with text replacement
I am currently learning C++. I coded a tiny program for school and I wonder if there could be issues (like bugs or security issues) with it.
Any ways to make it have weird behaviours would be very ...
- 73
4
votes
1
answer
108
views
Implement Seek on /dev/stdin file descriptor in Rust
Problem: In order to be able to use the arrow crate's infer_file_schema function with input piped to ...
- 141
1
vote
2
answers
531
views
Geting file-names from the current working directory
The following routine returns the file-names from the current working directory:
...
- 575
1
vote
1
answer
136
views
Delete files with specific filename pattern in directory with all extension using python
Preamble
The first following code explains the context.
...
- 11
3
votes
1
answer
313
views
SImple Inverted Index
This is a simple inverted index I made.
The goal is to:
Read set of text files from a directory, docs
Tokenize them
Normalize the tokens by removing punctuation ...
- 33
-2
votes
1
answer
248
views
Number Plate Generation Program
I wrote a number plate generation program. The program generates number plates for a car registered with a specific Memory Tag and on a specific date.
Number plates use the following format: (2 letter ...
- 21
4
votes
2
answers
1k
views
Logger that writes to text file with std::vformat
This class has a Log function that appends text to a log text file. It takes a format string and a variable amount of arguments, much like a ...
- 43
1
vote
3
answers
73
views
FileIO lines to String Converter
I think I made a good FileIO object because I can simply copy-paste whenever I need, however I wonder How I can improve my code.
This code takes file path of the target file and turns every line to ...
- 13
-3
votes
1
answer
133
views
Opening a directory as a file descriptor creating it if it does not exist [closed]
Variables:
conf of type struct Conf whose details are not relevant to this review stores the configuration data being read.
<...
user265757
4
votes
2
answers
110
views
A simple and fast library/code to store & manage variable data
I've been searching through the different ways to store data and found some helpful and actually great libs like:
JSON
XML
And some neh:
text file basic write and read
some binary type data storing?...
user264933
7
votes
1
answer
202
views
Command-line correlation calculator in Java
I have this Java program that asks for a name of the file containing data rows in the format $$
x_1\ y_1 \\
x_2\ y_2 \\
\vdots \\
x_n\ y_n
$$, and outputs on the command line the Pearson correlation ...
- 27k
2
votes
1
answer
305
views
Sending and receiving files in C win32 using a socket
I have a piece of code to send and receive files on Windows with C. Is this the right way to do it? And am I guaranteed that the full file will be sent and received?
Receiving function:
...
- 83
3
votes
1
answer
64
views
Python Function that Replicates a Directory's File-Tree for Specific File Types while Changing the Parent Directory
Problem Context: I needed to make a script that would search through all the files in a GitHub Repo and find all the README files within it, then replicate the File-Tree of the Repo to a specified ...
0
votes
1
answer
86
views
duplicate an open file descriptor [closed]
My program implements a function similar to `dup2'. I would like you to please find any problems with the code and what I could improve.
code:
...
1
vote
1
answer
202
views
File Abstraction Library
This library is a layer of abstraction over file operations in C#. It aims to provide easy file IO syntax, and implicit error handling behaviors, to ensure robustness in scenarios including, but not ...
- 113
2
votes
0
answers
80
views
Simple diff utility in Java using OOP take 2
(See the previous iteration here.)
After further revising my code, I have:
com.github.coderodde.diff.Diff.java:
...
- 27k
2
votes
1
answer
122
views
Simple diff utility in Java using OOP
(Previous and initial iteration lives here.)
(The next iteration is here.)
Now I was able to spare some lines by putting diff related state in an object. Also, I relied on ...
- 27k
6
votes
2
answers
912
views
Simple diff utility in Java
(See the next and second iteration here.)
I have this toy implementation of the diff utility in Java:
...
- 27k
1
vote
1
answer
147
views
Open a file, with a fallback path if it doesn't exist at one location
I am parsing a file that exists in either app/components/ui or in app/components. If the one in the first dir (...
- 248
1
vote
1
answer
193
views
File dump in assembly
This is a file dump program written in assembly that displays 320 bytes at a time in 20 lines.
It shows the hex code for each character and also the string
At the start of the program it asks for the ...
- 61
1
vote
1
answer
636
views
Adding string to a text file without duplicates
I have a function below, store_in_matchid_file, and it adds certain strings to a .txt file as long as that string doesn't already exist in the file. However that ...
- 47
2
votes
2
answers
3k
views
touch command in C
I wrote a program in C that simulates the touch command from linux.
I would like to ask you to criticize my implementation, to find bugs in particular
...
- 449
2
votes
2
answers
204
views
No Reference Image Quality Assessment for Video in Matlab
I am trying to perform the No-Reference Image Quality Assessment (NR-IQA) calculation on video. Several NR-IQA methods including Naturalness Image Quality Evaluator (NIQE), Perception based Image ...
- 3,974
1
vote
1
answer
81
views
Unit tests for PNGme steganography exercise in Rust
I want to become proficient in Rust and I've followed the PNGme exercise. I've completed it up until Chapter 4 included, where I've written a lot of tests myself for verifying that the command line ...
- 111
1
vote
1
answer
138
views
Passwords with C++ Console
I am really, really new to coding in general and especially c++. To get more familiar with c++ I am trying to do a series of projects with c++ console apps. One of my projects is with a database that ...
- 11
3
votes
3
answers
148
views
tee: copy standard input to both stdout and a file
I implemented the tee command from linux. The program also handles the -a option for adding text to the end of a file if it ...
- 299
1
vote
0
answers
74
views
Creating a reusable DictWriter context manager
I want to simplify the repetitive work of creating a DictWriter in a with context manager.
So I created a ...
- 111
3
votes
1
answer
147
views
Processing a binary file with buffer length tags
I am trying to process a very large binary file using MappedByteBuffer from java.nio package.
This is how the data looks like in the file:
...
- 33
2
votes
1
answer
124
views
Image file uploader webpage in HTML5 and PHP
I am trying to make a webpage for uploading an image file and storing the uploaded file on server. There are several features in this implementation:
There is a drag & drop zone on the webpage. ...
- 3,974
0
votes
1
answer
54
views
PowerShell to query SQL database with a string from a filename
I am trying to write a PowerShell script that will check a folder for any files and then for every file it will grab part of the filename and check it against the SQL database.
If it found a match, it ...
- 1
6
votes
2
answers
1k
views
Read and write triangulated surfaces
Recently, I wrote a class which can load an .obj file into vector array, and save the vector array as an .obj file. The .obj file looks something like this:
...
- 63
7
votes
5
answers
2k
views
Robust program to write an array of certain data type to a binary file and read back from it (C++17)
Problem description
As the title indicates, I want to be able to write to and read from a binary file safely, in the sense that I want to have full control of everything that might go wrong. Since I ...
- 81
2
votes
1
answer
861
views
Hashing with python optimization, hashlib and multiprocessing
I am looking to get any type of improvement, I want to be able to hash a list of 'blocks' aka strings and check if hashes match per block, if you can help me with that, currently reading and writing ...
- 75
1
vote
1
answer
51
views
Batch generating histograms of images in Matlab
I am attempting to plot histograms for batch of images in Matlab. The file structure of input images and the experimental implementation are listed as below.
File structure of input images
The matlab ...
- 3,974
2
votes
2
answers
70
views
Send an array of files and return the first one that exists
I have a little project, chuy, which is basically a copy of Make.
By request of users I have added support for toml configuration, since originally it only accepted ...
- 157
2
votes
3
answers
435
views
Batch extracting differences between two images with enhancement using opencv
I am attempting to extract the absolute differences image between two input images and then enhance the intensity (brightness) channel in HSV color space with the given times. The workflow is like ...
- 3,974
-1
votes
1
answer
92
views
Image upload filter for PHP
I am trying to improve my file upload handler filter.
Environment
Since any client-side validation is easily circumvented, there is none in this code, for ease of testing. Not even an ...
- 129
2
votes
1
answer
153
views
encrypt files using a variant of Vernam Cipher in C language
I'm coding this program that allows you to encrypt files using vernam cipher in C language. I would be glad if you could inspect my code and tell me if I can make some improvements to it or if there ...
- 21