How can I delete the first line from a flxText?
I have tried text.textField.replaceText(0, text.textField.getLineLength(0), ""); but it only works once. I have also tried keeping count of the line that's being deleted and it doesn't work either.
edit: I would like to reopen this question to specify that I want to take into account both newlines and word wrap.
Considering the text contains the line breaks why not just split the text on \n, remove the lines you no longer need, and then set the text to the joined lines.
var lines = flText.text.split("\n");
lines.shift(); // removes the first line
flText.text = lines.join("\n");
Related
I'm encountering a problem in Markdown paragraph.
I use Notepad in Microsoft Windows to create .md file and use Typora for rendering.
The new lines in the same paragraph are treated as new line in rendering.
For example, if my .md file contains the following text
Electric Field inside
a conductor
is zero
The Typora renders as it is with new lines....whereas it is expected the rendering should be like this
Electric Field inside a conductor is zero.
i.e new lines inside the same paragraph to be formatted in proper paragraph sense and not like code listing. Whats the mistake I' doing ?.
Typora seems to not follow typical Markdown behavior in this regard. As explained in their documentation:
A paragraph is simply one or more consecutive lines of text. In
markdown source code, paragraphs are separated by two or more blank
lines. In Typora, you only need one blank line (press Return once)
to create a new paragraph.
Press Shift + Return to create a single line break. Most other
markdown parsers will ignore single line breaks, so in order to make
other markdown parsers recognize your line break, you can leave two
spaces at the end of the line, or insert <br/>.
The intention of the software I am coding is to append a string to the last line of a text file. The problem I am experiencing is that depending on the situation, sometimes I get an empty line when I try to append text to the last line of a text file.
My text file is very simple. It contains a few lines of text and each line contains a few words. When I open the text file with Windows' Notepad (without editing the content of the text file) and I move the caret to the end of the entire file, sometimes the caret is positioned at the end of the last line with content (text), and sometimes it is positioned at an empty line that doesn't contain even a white space.
When the caret's ending position corresponds to the last char of a line that contains text, I don't experience any problem appending some text programmatically. The programmatically appended line is at a new line and there isn't any empty line between the old last line and the current last line in the text file.
The problem appears when I can move the caret in the text file to the last possible position and that position corresponds to an empty line. In that case, when I try to append a new line programmatically, I can see an empty line before the just added line.
I have tried different codes and techniques, but it always happens the same to me.
The code I am actually using is:
If stringLastLine.Length = 0 Then
Using sw As StreamWriter = New System.IO.StreamWriter(filePath, True)
sw.Write("Inserted text")
sw.Close()
End Using
ElseIf stringLastLine.Length > 0 Then
Using sw As StreamWriter = New System.IO.StreamWriter(filePath, True)
sw.Write(Environment.NewLine & "Inserted text")
sw.Close()
End Using
End If
Basically, I am trying to detect if the last line length is over zero, so it's a line with text content and I will use "environment.newline + string". If it's a line without content (length = 0) I add directly the string without using "environment.newline". In the case that length = 0 I always get an empty line in between.
Any idea to solve this problem?
How about trimming your text to ensure there's no end of line characters at the end (the whole text)? Right now you might have an issue with multiple blank lines:
text = text.TrimEnd({Convert.ToChar(10), Convert.ToChar(13)})
This handles the EOL characters.
I have a requirement where I need to perform following 3 things to a file in Linux:
Check if Ctrl-z character is present at the last line of the file and if present then delete the line.
Replace new line characters that appear in between the fields in all the records to a single space but it should not replace the last new line in every record which signifies record delimiter.
Delete the first line of the file.
I can not use any script.Can it be done with sed/awk. Any suggestion is highly appreciated.
I'm curious if there is a way to paste text to the end of every line in Sublime 2? And conversely, to the beginning of every line.
test line one
test line two
test line three
test line four
...
Say you have 100 lines of text in the editor, and you want to paste quotation marks to the beginning and end of each line.
Is there an easy way to do this or a plugin that anyone would know of? This would often save me a lot of time on various projects.
Thanks.
Yeah Regex is cool, but there are other alternative.
Select all the lines you want to prefix or suffix
Goto menu Selection -> Split into Lines (Cmd/Ctrl + Shift + L)
This allows you to edit multiple lines at once. Now you can add *Quotes (") or anything * at start and end of each lines.
Here's the workflow I use all the time, using the keyboard only
Ctrl/Cmd + A Select All
Ctrl/Cmd + Shift + L Split into Lines
' Surround every line with quotes
Note that this doesn't work if there are blank lines in the selection.
Select all the lines on which you want to add prefix or suffix. (But if you want to add prefix or suffix to only specific lines, you can use ctrl+Left mouse button to create multiple cursors.)
Push Ctrl+Shift+L.
Push Home key and add prefix.
Push End key and add suffix.
Note, disable wordwrap, otherwise it will not work properly if your lines are longer than sublime's width.
Let's say you have these lines of code:
test line one
test line two
test line three
test line four
Using Search and Replace Ctrl+H with Regex let's find this: ^ and replace it with ", we'll have this:
"test line one
"test line two
"test line three
"test line four
Now let's search this: $ and replace it with ", now we'll have this:
"test line one"
"test line two"
"test line three"
"test line four"
You can use the Search & Replace feature with this regex ^([\w\d\_\.\s\-]*)$ to find text and the replaced text is "$1".
Use column selection. Column selection is one of the unique features of Sublime2; it is used to give you multiple matched cursors (tutorial here). To get multiple cursors, do one of the following:
Mouse:
Hold down the shift (Windows/Linux) or option key (Mac) while selecting a region with the mouse.
Clicking middle mouse button (or scroll) will select as a column also.
Keyboard:
Select the desired region.
Type control+shift+L (Windows/Linux) or command+shift+L (Mac)
You now have multiple lines selected, so you could type a quotation mark at the beginning and end of each line. It would be better to take advantage of Sublime's capabilities, and just type ". When you do this, Sublime automatically quotes the selected text.
Type esc to exit multiple cursor mode.
Select all lines you want to add a suffix or prefix.(command+ A to select all the lines)
Press command+shift+L. This will put one cursor at the end of every line and all the selected lines would still be selected.
For adding suffix press command+right and for adding prefix command+left. This will deselect all the earlier selected text and there will only be cursors at the end or start of every line.
Add required text
everytime i try the space then underscore + enter it doesnt work and it lights up red
edit - like for example this is a comment:
'you must add such and such to this variable and then you must declare it'
say i have that for a comment and i want to break the comment after variable. when i do this
'you must add such and such to this variable _
and then you must declare it'
it gives me an error
The underscore at the end of the line trick doesn't work for comments. The underscores are treated as part of the comment.
To create a bunch of single line comments at once, select the lines you want to comment out and press CTRL+K then CTRL+C
A line continuation consists of at least one white-space character that immediately precedes a single underscore character as the last character (other than white space) in a text line.
Ref.
Doesn't apply to comments though; if you want multiple comment lines simply start a new comment for each subsequent line.