This is not an Eclipse-programming question, but rather a question about the Eclipse user-interface in general.
I am writing a verilog source-code in an Eclipse text-editor using the simplifIDE plug-in. I want to align my code so that variable names always start at offset 33 (32 spaces from the left margin)
Does Eclipse have an option for displaying the current cursor position in a status bar? I'd even be happy with a keyboard shortcut that would pop the current cursor-position up in an dialog.
In the absence of a solution, I'll set my tabs to 4-spaces, and put the following text at random places in my file:
//..5...9...13..17..21..25..29..33..37..41..45..49..53..57..61..65..69..73..77..81..
Some editors (such as the built in Java editor) display the current insertion point location in the status bar. However, if you use a third-party editor sch as SimplifIDE, you may have to check its own configuration for that option.
If you write your own editor, you could ask the editor to give you the selection provider, as the selection provider can also provide the current insertion point location.
Using Eclipse 3.5 with the SimplifIDE plugin, I am seeing the correct information for the line and column on a status bar on the bottom of the screen with a {line : column} format using either tabs or spaces.
thedeserthorizon, Are you using 3.5 and the version 1.0.26 of Simplifide.
There is a new API in 3.5 which allows you to listen to cursor movements (see this bug). Then, you can ask for the index of the first character in the current line and subtract that from the absolute cursor position. This gives you the offset in characters.
This is not accurate though; if your editor supports real tabs, then you must query the editor for the current line and count characters yourself (where the tab counts as 2..8 character positions).
Related
I'm trying to use the multi cursor functionality of vscode on a large(ish) file.
the file is too large to select every line individually with ctrl-alt-up or down. In sublime-text I would select everything and push ctrl-shift-l. Is there a similar thing in vscode. I've tried using a regex search for ^, but that gives me an error stating "Expression matches everything".
The command Selection / Add Cursors to Line Ends altshifti will put a cursor on every line in the current selection. (For mac use optshifti)
Tip: You can pull up the keyboard shortcut reference sheet with ctrlk,ctrls (as in, those two keyboard combos in sequence).
(For mac use cmdk,cmds)
Hold Alt+Shift and select the block. Then press End or Right button.
You get selected individual lines.
I use version VSCode 1.5.3 in Windows.
Hold Alt+Shift+i
Hold Home (fn+-> Mac) for right-most or End for left most(fn+<- Mac)
This feature is actually called split selection into lines in many editors.
Sublime Text uses the default keybinding, CTRLSHIFT L
VSCode uses ALTSHIFTI
For Atom you actually need to edit your keymap to something like this
'.platform-win32 .editor, .platform-linux .editor':
'ctrl-shift-L': 'editor:split-selections-into-lines'
Real Lines vs Display Lines
First we have to understand the difference between Real Lines and Display Lines to completely understand the answer of the question.
When Word Wrap is enabled, each line of text that exceeds the width of the window will display as wrapped. As a result, a single line in the file may be represented by multiple lines on the display.
The easiest way to tell the difference between Real Lines and Display Lines is by looking at the line number in the left margin of the text editor. Lines that begin with a number correspond to the real lines, which may span one or more display lines. Each time a line is wrapped to fit inside the window, it begins without a line number.
Cursor At the Beginning of each Display Lines:
Cursor At the Beginning of each Real Lines:
Answer to the Question
Now that we know the difference between Display Lines and Real Lines, we can now properly answer the actual question.
Hold AltShift and select the text block.
Press Home to put cursor on the beginning of every Display Line.
Press End to put cursor on the end of every Display Line.
Press HomeHome (Home twice) to put cursor on the beginning of every Real Line.
Press EndEnd (End twice) to put cursor on the end of every Real Line.
Please understand that AltShiftI put cursor on the end of every Real Line.
Install the extension Sublime Commands.
[Sublime Commands] Adds commands from Sublime Text to VS Code: Transpose, Expand Selection to Line, Split into Lines, Join Lines.
(Don't forget to add the keybinding(s) from the extensions details page to your keybindings.json)
Doesn't VS Code already have a "split into lines" command?
Yes, yes it does. However it differs from the one in Sublime.
In VS Code, when you split into lines your selection gets deselected and a cursor appears at the end of each line that was selected (except for the last line where the cursor appears at the end of the selection).
In Sublime, when you split into lines a cursor appears at the end of each line (with the same exception as in VS Code) and the selection is divided on each line and "given" to the same line.
I have the same problem, i'm used to Alt + drag to do 'box selections' in visual studio but it does'n work in code.
It seems to be impossible for now to do it differently than by selecting every single line.
However plugins should be supported soon so we will likely see a plugin for this if not implemented directly by microsoft.
From visual studio uservoice forums:
We plan to offer plugin support for Visual Studio Code. Thank you for your interests and look for more details in our blog in the coming weeks. http://blogs.msdn.com/b/vscode.
For the preview we are looking for exactly this type of feedback. Keep it coming.
Sean McBreen – VS Code Team Member
If I have a piece of Code
MyIdentifierIsNice(OtherThingAlsoNice isBetterThen);
I'd like to change the behavior of Ctrl-Left in Eclipse from stopping here:
My|Identifier|Is|Nice|(|Other|Thing|Also|Nice is|Better|Then|);|
to here:
MyIdentifierIsNice(|OtherThingAlsoNice |isBetterThen);|
...or at least just not so often. Other variants would be also fine, like:
MyIdentifierIsNice|(|OtherThingAlsoNice| isBetterThen|);|
Mainly it should stop considering a CamelCaseIdentifier to consist of several words for navigation via Next-Word, and such like.
I use SpringSourceSuite Version 2.5.1, which is Eclipse 3.6, I guess.
Try and unselect the option:
Preferences / Java / Editor / Smart caret positioning in Java names
And see if that enhances the user experience in term of cursor positioning.
If this is not Java, you have a similar option in:
Preferences / General / Editors / Text Editors / Smart caret positioning at line start and end
It is usually selected, meaning if the cursor still stops at every word, that may suggests another setting for a specific language is overriding it.
Coming to Eclipse from XCode, I found the default navigation annoying. In Eclipse, Alt+Left and Alt+Right move to the next camelcase segment, and Ctrl+Left/Right does nothing. In XCode, Alt+Left/Right moves between words and Ctrl+Left/Right moves between camelcase segments. This allows you to control how fine-grained your navigation is.
How I fixed this for myself was by going into Preferences > General > Keys, searching for "Word", and changing the "Next Word" and "Previous Word" bindings from Alt+Left/Right to Ctrl+Left/Right. Then the Alt-navigation is by word and the Ctrl-navigation is by camelcase segment, as in XCode.
I thought this might be useful to some.
Edit:
As I continue to use these new settings, I've found another point:
Although navigation works as advertised, selection has some funky behavior. Namely, Shift+Ctrl+Left/Right can sometimes select large blocks of text instead of just the next camelcase component.
To fix this, again go to Preferences > General > Keys, search for "Select".
Set "Select Next/Previous Word" to Shift+Ctrl+Right/Left.
Unbind "Select Next/Previous Element" (there are three "Whens" to pick from, I unbound all 3).
Voila.
If you want a very simple way to select a entire word without the need to disable smart caret positioning.
You can use at the beginning of word or inside the word:
Shift+Alt+Right
At the end or in the middle of word:
Shift+Alt+Left
Do you know any easy way to find out what is the length of the current selection in Eclipse?
i.e. I select a line fragment and would like to know how many characters are there?
Usually, I count them manually, but that's stupid. When being desperate, I move to the start, check the column number, move to the end, check the column number, subtract, think a minute if I should add 1 or not... and my selection is lost.
On Windows, Notepad++ is a good solution. Open a new tab, copy and paste in there and the length of the document listed at the bottom of the window is the number of characters you have.
Easy way? Copy the text and paste it to a counting script, like this site:
http://charcount.com/
(Warning: the site's background may hurt your eyes.)
Eclipse does support a Selection object, if you're into its API:
http://www.eclipse.org/articles/Article-WorkbenchSelections/article.html#example
I have a specific project where I need to wrap every code line at 65 characters. I have set up the eclipse Java code formatter properly for this. But what I really want is a vertical line to be drawn in the editor showing where the max line width while I am typing, not just when I run the formmater. I know this feature is available in some capacity because it is displayed in the code formatter property page.
I don't see any option in eclipse to turn this on and I didn't see any plug-ins that do it on Eclipse Plugin Central
Look in Windows / Preferences (at least on Windows - IIRC it moves around for different operating systems) then:
General -> Editors -> Text Editors -> Show Print Margin
Tick this and it should show the line.
As a quick way of finding this, use the search filter in the top and filter on "margin".
Notes from the comments - unverified by me, but I have no reason to doubt them:
It has changed somehow in 2016: For details see [here] (https://bugs.eclipse.org/bugs/show_bug.cgi?id=495490#c2) You have to set it in the formatter: From menu [Window]-->[Preferences], select [Java]-->[Code Style]-->[Formatter], and then edit your formatter profile. In the tab page [Line wrapping], you can find a setting named "Maximum line width". Change this setting, and the print margin in Java source editor will be changed too.
In Eclipse Luna (4.4):
Choose menu Window\Preference . Look at top-left corner, in search box type filter text, type: margin.
In section Apperance color option, Choose Print margin. Choose Show print margin. In text box Print margin column , type 65 as what you want.
#Jon Skeet's answer is incomplete.
(1/2) First, do what he said:
Window --> Preferences --> General --> Editors --> Text Editors --> check the box for Show Print Margin
Ticking this box will show the vertical line.
As a quick way of finding this, use the search filter in the top and filter on "margin".
However, this only shows the line, but under most situations the "Print margin column" value there is flat-out ignored.
To set the column number for where the line should be, do what #John Percival Hackworth mentions here:
(2/2) Go to:
Window --> Preferences --> C/C++ [or whatever language you are using] --> Code Style --> Formatter --> click Edit --> under the Line Wrapping tab set the value you desire for Maximum line width.
Side note:
Use Alt + Shift + Y to toggle soft line wrapping on and off. It will soft wrap (ie: no carriage return) at the end of the screen, however, not at the column you set above.
How do you enforce hard line wrapping at the column you set above (ie: that adds a carriage return)? I don't know yet. If you figure it out let me know. In Sublime Text 3 (a much better editor but with a much worse indexer/function definition finder :() it's Alt + Q.
Update: I think it may be possible with the "CppStyle" plugin, which uses clang-format, by using Ctrl + Shift + F to apply the auto-format, but I don't know the exact instructions to make it work yet.
Related:
Set tab width: Changing editor tab width in eclipse 3.5
After some months with Espressif, but also with other brands plugged-in Eclipse, I found how to enlarge maximum line width. I made a lot of attempts and show how to do for Espressif-IDE:
Right click a project->properties->C/C++ General->Formatter
->Enable Project specific settings->
New->Give your profile a name and base it on a built-in formatter: I choose BSD/Allman->Edit this new profile->within Line Wrapping tab type for example 200 for Maximum line width->Apply changes.
Format source files: you'll have long lines.
Before I did the same manouvres starting from:
Window->Preferences->C/C++->code Style->Formatter... : that never worked.
In CFEclipse, I do a lot of double-clicking to select text. The standard behavior is to select all text within the nearest word boundaries. This is problematic when editing code where the original editor didn't use camel-case; for example, they wrote "myObject" as "my_object".
Is there a way to change the double-click selection behavior to include '_' as a valid word character?
In the latest version of CFEclipse, there is now the option to define what characters are considered word boundaries when double-clicking, and also the option to use different characters when using alt or shift keys.
In Preferences, goto CFEclipse > Editor > Text Selection to update this:
(source: bpsite.net)
CFEclipse does not recognize either the underscore or a period as a character for selecting text with a double-click. There is no way that I know of other than rolling your sleeves up and hacking the editor code to change it. I doubt that this will be changed any time soon with the impending release of Bolt from Adobe.
On eclipse 3.4.1 Ganymede, it seems to select the nearest boundaries including the '_' (at least in the java file I am using)
What eclipse version are you using ?
This blog even reports that eclipse3.3 does select word as you are expecting it...
vs.