I have an HTML file that has around 700 of my bookmarks. Each line has link and a tag like the following:
<li>Strunk, William, Jr. 1918. The Elements of Style</li>
The file has multiple lines with the same tags. I want to group the lines with the same tag next to each other. I was trying to do it in vscode. I can select multiple occurrences of the same phrase with Ctrl+Shift+L, but I could not select the lines. Is there a way for doing this?
After your comment below that clarified what you are trying to do I think you will find this easier than your solution.
Select the text to check.
Ctrl-Shift-L selects all occurrences. The command is Select All Occurrences of Find Match - if that is bound to something else on your OS, use that.
Ctrl-L will select the entire line. (Changed from Ctrl-i in Feb. 2019.) That is using the command Expand Line Selection - again find that command in your Keyboard Shortcuts and use the same command.
Cut and paste them where you want.
There is also an extension vscode-dup-checker that will find and delete duplicate lines. I don't know if you actually want to delete the duplicates though.
I added a gif to show it in action - it only uses steps 1-4 above:
Ok, I found one method that works. I don't know if it the best though.
After Ctrl+Shift+L, you have cursors on all the lines with that phrase. Then pressing Home will take you to the beginning of all of them and Shift+End then will select all those lines on which you have the cursor. Then cut the text and paste it wherever you wish. Came out to be pretty useful for me while I was editing a html file with 700 links.
Multiline regular expression search doesn't work in VS Code version 1.27.2 .
Theoretically aaa(\n|.)*bbb should find string starting from aaa and ending bbb but it doesn't work.
The solution mentioned here Multi-line regular expressions in Visual Studio Code doesn't work as well.
Multiline search is added in v1.29 released in November 2018. See multi-line search.
VS Code now supports multiline search! Same as in the editor, a regex
search executes in multiline mode only if it contains a \n literal.
The Search view shows a hint next to each multiline match, with the
number of additional match lines.
This feature is possible thanks to the work done in the ripgrep tool
to implement multiline search.
Multiline search is coming to the Find Widget with v1.38. See multiline find "pre-release" notes.
Multi Line search in Find Widget
The Find Widget now supports multiple line text search and replace. By
pressing Ctrl+Enter, you can insert new lines into the input box.
.
Odd that it is Ctrl+Enter in the Find Widget but Shift+Enter in the Search Panel (see Deepu's answer below). Shift+Enter has other functionality when the Find Widget is focused.
yes, you could use regex for mutliple line search in VScode.
To find a multi-line text block starting from aaa and ending with the first bbb (lazy qualifier)
aaa(.|\n)+?bbb
To find a multi-line text block starting from aaa and ending with the last bbb. (greedy qualifier)
aaa(.|\n)+bbb
I have been looking for a quick way to do this, and I have come to the following:
start_text.*?(.|[\n])*?end_text
with start_text and end_text being the bounds of your multiline search.
breaking down the regex ".?(.|[\n])?":
".?" will match any characters from your start text to the end of the line. The "?" is there to ensure that if your end_text is on the same line the . wont just keep going to the end of the line regardless (greedy vs lazy matching)
"(.|[\n])" means either a character\whitespace or a new line
"*?" specifies to match 0 or more of the expression in the parentheses without being greedy.
Examples:
<meta.*?(.|[\n])*?/> will match from the beginning of all meta tags to the end of the respective tags
<script.*?(.|[\n])*?</script> will match from the beginning of all script tags to the respective closing tags
Warning:
Using .*?(.|[\n])*? with improperly or partially filled in start_text or end_text might crash VS Code. I suggest either writing the whole expression out (which doesn't cause a problem) or writing the start and end text before pasting in the regex. In any case, when I tried to delete parts of the starting and ending text VS Code froze and forced me to reload the file. That being said, I honestly could not find something that worked better in VS Code.
Without using regex.
Multi-line search is now possible in vs code version 1.30 and above without using regex.
Type Shift+Enter in the search box to insert a newline, and the search box will grow to show your full multiline query. You can also copy and paste a multiline selection from the editor into the search box.
You can find and replace in multiple lines by using this simple regex : StringStart\r\nStringEnd
For example
public string MethodA(int x)
{
var user;
}
public string MethodB(string y)
{
var user;
}
public string MethodC(int x)
{
var user;
}
public string MethodD(float x)
{
var user;
}
If you want to replace the name of user variable with customer along with method parameter name to user but only for the int ones.
Then the regex to find will be : int x)\r\nEnterBlankSpacesHereToReachTheString{\r\nEnterBlankSpacesHereToReachTheStringvar user
and regex to replace will be : int user)\r\nEnterBlankSpacesHereToReachTheString{\r\nEnterBlankSpacesHereToReachTheStringvar customer
See for reference
I had a similar issue, this works better for me:
aaa[.\n\r\t\S\s]*bbb
This includes carriage return (\r), new line (\n), tab (\t), any whitespece (\s) and any non whitespace (\S). There seems to be some redundancy putting "." and "\S" together, but it doesn't work without both in my case.
No regex way: you can copy multiline text and paste it in "Find in files" form:
result of "Replace all":
(.|\n)+? or [\s\S\r]* or [.\n\r\t\S\s]* may be understandable when viewed in isolation, but in an already complex regex expression, they can add that extra layer of complexity that makes the whole thing unmanageable.
On Windows, for files on the local disk, I find the best solution is to switch to using Notepad++. Not only does it handle multi-line out of the box, it also has a pleasant interface for multi-file search and replace, handles macros gracefully, and is quite light-weight. You can switch back to VScode as soon you have finished your regex changes. Personally, I deleted Notepad++ when I found VScode, but reinstalled it later when I found some of what Notepad++ had to offer was missing in VScode. Both are free to use! I'm sure there's an equivalent on the Mac.
If you are willing to search JavaScript, TypeScript or JSON files I can recommend my VScode extension
It allows for formatting agnostic text search and structural code search
You can find it on codeque.co or at VSCode Marketplace
Your query could look like this
aaa$$mbbb
where $$m means optional multiline set of any characters
Make sure to use text mode for this query
CodeQue can make much more than that!
The reason on this behavior is very simple.
Multiple line search isn't implemented yet.
see: Support multi-line search for Global search
Emacs tries to be clever with its comment functions so that lines which are blank don't get a comment prefix. Is there an easy built in way to make sure that all lines (blank or not) get commented when I call something like comment-region? So, if I have this code:
Comment comment comment
More comments more comments
Suppose the comment prefix is //, I want to be able to select that region, and have the comments look like:
// Comment comment comment
//
// More comments more comments
Yes, I could write a custom function to do this, but it seems like basic enough behavior that it might somehow be built in.
comment-empty-lines is a variable defined in newcomment.el.
Its value is nil
Documentation:
If nil, comment-region does not comment out empty lines.
If t, it always comments out empty lines.
If eol it only comments out empty lines if comments are
terminated by the end of line (i.e. comment-end is empty).
You can customize this variable.
I installed JD-GUI to retrieve my code from a jar file. Everything works fine, except JD-GUI automatically adds annoying comments like this:
Any way I can remove them? I don't understand regex.
Using Eclipse:
Go to Edit > Find/Replace...
Use this regular expression in the Find box: ^/\* [0-9 ]{3} \*/
^ match start of line.
/\* match start of comment
[0-9 ]{3} match exactly three digits/spaces
\*/ match end of comment
Make sure the Replace box is empty.
Make sure the Regular expressions checkbox is selected.
Click Replace All
Use CTRL+H. Within "File Search" > "Search string", check "Regular expression" and use one of the regex given by the other answers.
Then use "Replace..." to replace them all with nothing.
Use the utility sed to search for a regex and replace with an empty string. Here is a gist that should get you started with using it.
Since you don't understand regex, I'll help you out with it: /^\/\* \d+ \*\//gm will find every comment block that starts at the beginning of a line and contains a line number.
Here's how it works:
/ is the start of the regex
^ matches the begnning of the line
\/\* finds the opening /* of the comment
(space) finds the space before the line number
\d+ finds any number of digits
(space) finds the space after the line number
\*\/ finds the ending */ of the comment
/gm ends the regex and flags this as a global, multiline search
I am trying to document certain sections of my code using Doxygen. I want to use the javadoc
style of comments viz
/**
* My Documentation goes here
*/
Now in Emacs I can comment out a certain block of text by selecting it and by pressing Meta+;. This comments out the lines by placing a // in front of all the lines selected.
Since most of the time I will be writing comments in my code which will be documented using Doxygen, I want to rebind the Meta+; to give me a javadoc style of comments.
How do I do that?
Use doxymacs. You'll have to rebind keys to your taste, but the bindings it comes with are pretty good.
Code is not documentation. Wouldn't you want to use javadoc style comments only for documentation?
It sounds like you actually want a snippet/skeleton system to insert a java-doc template that you can flesh out. If so I recommend yasnippet.