I'm using Eclipse on Mac OSX and I randomly get character \160 (whatever that is) instead of a whitespace in my code.
From time to time when I compile I get this error:
java:74: illegal character: \160
if (c == '*' ||?c == '/')
when my code in Eclipse actually looks like:
if (c == '*' || c == '/')
This is annoying and usually resolved by deleting the supposed invisible ? and pressing spacebar once again in the editor.
I'm curious as to why this happens if anybody has an idea.
as #Hanynowsky mention it is related to a different encoding between the source you copied and the one from your file. I have not found any way to automatically removed the bogus mismatching characters, but you can actually see them in eclipse if you enable the editor to show whitespaces.
For doing that:
set Eclipse to "show whitespace characters" (option under Preferences -> General -> Editors -> Text Editors)
the bogus \160 character will appear as " ." even if your other spaces will appear as ".". So you just need to delete the " ." occurrences and you are good!
When you copy / paste a code from a website page into your IDE editor, you might get this error as the copied code has invisible unknown characters, usually white spaces.
Unfortunately I do not know of any solution bar to remove and re-ident every white spaces between your code's identifiers.
Related
I would like to deal with floral formulae by my DSL coded in groovy, so I need some special symbols such as female sign and Superscripts and Subscripts.
Thanks to the great answers that I found on stackoverflow questions like this now I'm able to
insert special unicode symbols in source code in VIM (MacVim) this way:
CTRL+V. U 2 6 4 0.
However, I would like to be able to do the same in Eclipse IDE (I'm trying to use Groovy/Grails Tool Suite Version: 3.1.0.RELEASE to develop a grails project)
Question: How can I insert in the Eclipse editor a 4 digit unicode symbol by knowing the encoding ( without cut & paste from another source) ?
There appear to be a few ways to get the unicode characters on a Mac. The first few don't appear to be what you want exactly, but included for completeness.
1) Make sure System Preferences->Keyboard "show keyboard & character viewers in menu bar" is selected. Then you can click on that (normally accessible via option+cmd+T, but not in eclipse) to get the Character Viewer. You can then double-click a special character you want and it should insert at cursor.
2) Under the default setup, you should be able to click Option + key to get an alternate character. Use the keyboard viewer from #1 to see what maps to what. Note you can switch to some more mappings using Shift at the same time. This will only get you a subset of unicode characters.
3) From here: Under System Preferences->Languages & Text, go to Input Sources tab. Select the Unicode Hex Input source. You may need to assign switching input sources (under System Prefs->Keyboard->Keyboard Shortcuts->Keyboard) to a hotkey combo (default probably conflicts with spotlight, so change to something else). After that, you should be able to use said hotkey combo to switch to the Unicode Input Source - in that mode, you can hold Option down and enter a hex 4-digit key code, which will result in the character being placed at cursor.
As I was playing around for the first time with CoffeeScript, I ran in to a problem. In order to debug my problem, I tried replacing my whole file with one of the example bits of code from the coffee script site:
kids =
brother:
name: "Max"
age: 11
sister:
name: "Ida"
age: 9
However, when I try to compile that code, I get:
Error: In coffee/main.coffee, Parse error on line 3: Unexpected 'INDENT'
at Object.parseError (/usr/lib/coffeescript/parser.js:501:11)
at Object.parse (/usr/lib/coffeescript/parser.js:573:32)
at Object.compile (/usr/lib/coffeescript/coffee-script.js:23:22)
at /usr/lib/coffeescript/command.js:99:27
at /usr/lib/coffeescript/command.js:72:28
at fs:84:13
at node.js:773:9
In coffee/main.coffee, Parse error on line 3: Unexpected 'INDENT'
Since this is code from the CoffeeScript site, I assume the code itself isn't the problem. However, the compiler also seems to be working properly; if I compile:
a = 2
it generates a file with:
(function(){
var a;
a = 2;
})();
as expected. So in other words, the code is good, the compiler is good, and yet somehow I'm getting this Unexpected 'IDENT' error ... can anyone help me understand what is going on?
I am pretty sure this is a tabs-vs-spaces issue. Tell your editor not to convert spaces to tabs if it does that. Also, go through your code with the cursor and make sure it doesn't jump over blank areas.
The issue is that while normal editors see a tab as equivalent to two or four spaces, coffeescript sees it as one space, so the indentation gets messed up.
If this all doesn't help, make sure you have a recent coffeescript version, e.g. 1.1.0 or newer.
If you are using a JetBrains IDE (IntelliJ, PHPStorm, etc) the change of setting that worked for me is:
File > Settings > Project Settings > Code Style > CoffeeScript > Tabs
and Indents
Tick "Use tab character" & "Smart tabs"
Code is fine. Make sure you haven't messed up the whitespace (strange control chars showing as blanks, tabs or similar).
If you have the same problem, but your indentation is okay,
then you must be suffering from bug 2868.
Basically, the error is misleading. Check for indentation
errors in the required files.
When in Atom you can automatically convert tabs to spaces:
Packages > Whitespace > Convert Tabs to Spaces
You can resolve this two ways
1. IF using webstorm File->Default Settings as said above
2. Other workaround, is to use a different editor like Sublime, there u can press enter on earlier line and it will auto tab it for you with spaces
I just started to use NetBeans, and am trying to work out how to:
Make it so that trailing whitespace is removed on save. I know that you can invoke it manually, but it’s annoying if you forget. Can it be done automatically on save? I want this done because it keeps the code neat, because it’s really annoying when you’re moving through code and the text cursor goes all over the place because of trailing whitespace you don’t see, and because trailing whitespace has unintended effects on HTML layouts and other stuff.
Make it so that tabs are automatically made into 4 spaces while you’re typing rather than converting on save, or, worse, only when manually invoked.
For the first question, NetBeans 7.0+ has now a built-in solution. You can find it in:
On NetBeans 7:
Tools > Options > Editor > General > When saving files > Remove Trailing Whitespace: Never / Always / For Modified Lines Only
On NetBeans 8 / 9:
Tools > Options > Editor > On Save > Remove Trailing Whitespace From: None / All Lines / Modified Lines Only
[Original] For your first question, how to set NetBeans to remove trailing whitespace, the answer is that there is no setting (at the moment) to control that. It happens automatically, but not to every line. Whitespace is only removed from the lines you edit (or from the entire file if invoked manually). See Petr Pisl's blog entry titled "Removing trailing spaces" for a more complete explaination. (Note that even though he is blogging about NetBeans' PHP features, this particular feature applies to the basic editor shared by all NetBeans supported languages.)
[Update] This feature has been made available as of version 7.0, as pointed out by others in comments and answers below.
For your second question, set the editor to automatically make tabs into spaces as you type, you can find that setting in the Editor Formatting options:
Click on the Tools menu, and choose Options
Click on Editor in the top row of icons
Click on the Formatting tab
In the Language field, ensure that All Languages is selected
In the Category field, ensure that Tabs And Indents is selected
Check the box for Expand Tabs to Spaces
For each additional language that is available in the Language field, check that either Override Global Options is not checked, or that Expand Tabs to Spaces is also checked for that language.
Click OK
That will make sure that when you hit the tab key the specified number of spaces is inserted rather than a tab character. As above with whitespace removal, any existing tabs in the file are left as-is unless you invoke the manual command to change the entire file. (Moreover, even if you edit a line with tabs on it--leaving the tabs in place--the editor will not convert them to spaces. Only new instances of hitting the TAB key are controlled by this option.)
Tools > Options > Editor > On Save > Remove Trailing Whitespace From: None / All Lines / Modified Lines Only
This is as of Netbeans 7.3, according to Webmut.
For netbeans 7.4+
Windows - Tools > Options > Editor > On Save > Remove Trailing Whitespace From: None / All Lines / Modified Lines Only
Mac - Netbeans > preferences > Options > Editor > On Save > Remove Trailing Whitespace From: None / All Lines / Modified Lines Only
Also you can set this as language specific.
You can also set reformat while saving.
if you want to remove all trailing spaces in the file manually ONLY ONCE, you can invoke action 'Remove Trailing Spaces' from Source menu manually.
Source -> Remove Trailing Spaces
I have a bizarre problem: Somewhere in my HTML/PHP code there's a hidden, invisible character that I can't seem to get rid of. By copying it from Firebug and converting it I identified it as or 'Zero width no-break space'. It shows up as non-empty text node in my website and is causing a serious layout problem.
The problem is, I can't get rid of it. I can't see it in my files even when turning Invisibles on (duh). I can't seem to find it, no search tool seems to pick up on it. I rewrote my code around where it could be, but it seems to be somewhere deeper in one of the framework files.
How can I find characters by charcode across files or something like that? I'm open to different tools, but they have to work on Mac OS X.
You don't get the character in the editor, because you can't find it in text editors. #FEFF or #FFFE are so-called byte-order marks. They are a Microsoft invention to tell in a Unicode file, in which order multi-byte characters are stored.
To get rid of it, tell your editor to save the file either as ANSI/ISO-8859 or as Unicode without BOM. If your editor can't do so, you'll either have to switch editors (sadly) or use some kind of truncation tool like, e.g., a hex editor that allows you to see how the file really looks.
On googling, it seems, that TextWrangler has a "UTF-8, no BOM" mode. Otherwise, if you're comfortable with the terminal, you can use Vim:
:set nobomb
and save the file. Presto!
The characters are always the very first in a text file. Editors with support for the BOM will not, as I mentioned, show it to you at all.
If you are using Textmate and the problem is in a UTF-8 file:
Open the file
File > Re-open with encoding > ISO-8859-1 (Latin1)
You should be able to see and remove the first character in file
File > Save
File > Re-open with encoding > UTF8
File > Save
It works for me every time.
It's a byte-order mark. Under Mac OS X: open terminal window, go to your sources and type:
grep -rn $'\xFEFF' *
It will show you the line numbers and filenames containing BOM.
In Notepad++, there is an option to show all characters. From the top menu:
View -> Show Symbol -> Show All Characters
I'm not a Mac user, but my general advice would be: when all else fails, use a hex editor. Very useful in such cases.
See "Comparison of hex editors" in WikiPedia.
I know it is a little late to answer to this question, but I am adding how to change encoding in Visual Studio, hope it will be helpfull for someone who will be reading this sometime:
Go to File -> Save (your filename) as...
And in File Explorer window, select small arrow next to the Save button -> click Save with Encoding...
Click Yes (on Do you want to replace existing file dialog)
And finally select e.g. Unicode (UTF-8 without signature) - that removes BOM
In some editors there exist plugins implementing a feature called "hungry backspace" or "hungry delete".
If this mode is active in a text editor then one hit to the backspace key will automatically delete all whitespace chars backwards from the current cursor position up to the first non-whitespace character.
For example, this feature exists for Emacs and IntelliJ IDEA.
Does anyone know if it is also available in Eclipse?
Alt-Del is probably as close as you're going to get without writing a plugin yourself. Others have asked for this feature (coming from intelliJ) but so far it doesn't exist, or it's not published.
-Adam
CTRL-backspace is pretty close too: delete previous word:
function(); (4 spaces)
+ CTRL-BACKSPACE gives:
function
Other than that, AnyEdit plugin can convert trailing spaces into tabs (but also into "", effectively removing them)
Ctrl+Shift+Left, Backspace always works for me. works in notepad, web browsers, everywhere.
Stick to the standards :)
In SciTE, and Eclipse (3.4), Ctrl+Shift+Del with the caret after the last visible character will delete these spaces. Ie. it deletes from caret to end of line.
Actually, in SciTE I don't need to do that, since I have set it up to automatically remove these trailing spaces when saving.
Note: In Preferences > General > Keys, there is a Remove Trailing Whitespace binding (without key assignment by default) which seems to apply to File.
From eclipse Windows menu/Preferences
Search for Keys and filter to "Delete Previous Word"and Bind it to the Ctrl+Backspace