Advertisements I have a string, say "dog cat fish", that I want to split on the first whitespace into two slices that look like this: ("dog", "cat fish"). I tried to naively use the split_once() method like this: let string = "dog cat fish"; let (first_word, rest_of_string) = string.split_once(‘ ‘).unwrap(); It works effectively for regular… Read More Split string once on the first whitespace in Rust

Advertisements In the code below, isspace indicates that the null character is not a whitespace. Later in code the fwrite function writes a sequence of characters containing an intermediate and a final null character to a file. The C17 standard indicates that the s conversion specifier "Matches a sequence of non-white-space characters." However, the fscanf… Read More Is the null character a whitespace in C?

Advertisements #!/bin/bash get_data() { echo foo echo "bar baz" } for i in $(get_data); do echo "got: $i" done actual output is got: foo got: bar got: baz what I want is got: foo got: bar baz How do I get the variable i in for i in $(…) to be filled per-line? >Solution :… Read More How to get `for i in $(…)` delimited by lines in bash

Advertisements I want to add whitespaces around each element within a list of lists data = [["hello", "world"], ["python", "is", "cool"]] –> data = [[" hello ", " world "], [" python ", " is ", " cool "]] data_new = ["hello world", "python is cool"] data_new2 = [x.split(" ") for x in data_new] –>… Read More Adding whitespaces around each element of a list of lists python

Advertisements I have a record like "John Carter" with the space between two names. Now I want to search the word with the help of WHERE condition like (WHERE NAME="JohnCarter") without space, but due to the space sensitivity query returns me false, so is there any solution to avoid this space sensitivity. Id name 1… Read More How to avoid Space sensitivity of MySQL data

Advertisements I have a multiline string (and not a text file) like this: x = ”’ Index Value Max Min State 0 10 nan nan nan 1 20 nan nan nan 2 15 nan nan nan 3 25 20 10 1 4 15 25 15 2 5 10 25 15 4 6 15 20 10… Read More replace whitespace with comma in multiline string (doc string), but keeping end-of-line

Advertisements I have a string "A" and a string "B". I want to add a certain amount of whitespace between A and B, then print it. I want the resulting print to be "A (lots of spaces here) B". My idea is to pad "A" with whitespace to the right. I tried to accomplish this… Read More Perl – Padding a string with whitespace and printing it

Advertisements I am trying to print the list of all files and folders including hidden files: ls -al | awk -F’ ‘ ‘{print $9}’ | xargs do_something However, some of the files and/or folders contain space characters. How could I achieve this? Thanks. >Solution : $ find . -mindepth 1 -maxdepth 1 -printf "%P\n"|xargs -i… Read More How to `awk` print a space-separated field which contains space characters?