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Remove blank line in c++


By : Ahmad C.
Date : September 16 2020, 05:00 PM
it fixes the issue How to remover blank lines after reading a text file using c++?
code :
while (arry[i] == '\r' || arry[i] == '\n') {
    i++;
}
i < arry.length()


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how to remove a blank line after removing an unwanted line in perl?


By : Bobby Singer
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , For example, I want to remove unwanted line with bbbb , You could simply include the newline in your regular expression:
code :
$_ =~ s/bbbb\n//g;
aaaa
cccc
dddd

Using Buffered Reader and Writer to remove blank lines in a textfile; however I always leave the last line blank


By : Dave Marshall
Date : March 29 2020, 07:55 AM
will help you Don't add a newline after every output line. Instead, insert a a newLine before every line after the first line.
For example, you can replace your while loop with the following code:
code :
boolean needsNewLine = false;
while((currentLine = reader.readLine()) != null) {
    if(currentLine.equals("")) continue;
    if (!needsNewLine) {
        needsNewLine = true;
    } else {
        writer.append('\n');
    }
    writer.append(currentLine);
}

Golang idiomatic way to remove a blank line from a multi-line string


By : Felix Brüning
Date : March 29 2020, 07:55 AM
this one helps. Assumming that you want to have the same string with empty lines removed as an output, I would use regular expressions:
code :
import (
    "fmt"
    "regexp"
)

func main() {

    var s = `line 1
line 2

line 3`

    regex, err := regexp.Compile("\n\n")
    if err != nil {
        return
    }
    s = regex.ReplaceAllString(s, "\n")

    fmt.Println(s)
}

How To Remove Single Blank Line Only - Keep Multiple Blank Lines


By : dono86
Date : March 29 2020, 07:55 AM
I wish this helpful for you I have some data where I want to keep the multiple blank lines and remove the single blank lines only. My data look like this: , Using gnu-awk it is pretty simple:
code :
awk -v RS='\n+' '{printf "%s", $0 (length(RT) != 2 ? RT : "\n")}' file

1
2
3
4


5


6
7
8



9
10
awk -v RS='\n{3,}' '{gsub(/\n{2}/, "\n", $0); printf "%s", $0 RT}' file

c# delete line from textbox, and remove blank line


By : Angela
Date : March 29 2020, 07:55 AM
around this issue I have a textbox that holds file content. I have a button that when it is pressed, it deletes a line based on a string. Here is the code: , Replace
code :
lines.ForEach(str => newText += str + Environment.NewLine);
newText = string.Join(Environment.NewLine , lines);
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