Uncrustify turning newline characters that are part of a string into actual new lines

Question

The following Objective-C code in XCode (which compiles)

NSString *someString = @"Lorem ipsum dolor.\nEget nisl nec risus";

after running Uncrustify becomes

NSString *someString = @"Lorem ipsum dolor.
Eget nisl nec risus";

which doesn't compile. Is there any way to avoid it changing line breaks embedded in an NString? I have been searching and reading the forums, as well as the cryptic Uncrustify config file and have been unable to find an answer.

By the way, I am using version 0.60 of Uncrustify.

Answer 1

Figured it out!

The problem is not with the config. It's with the AppleScript that is ran. On my system the AppleScript is at ~/Library/Services/Uncrustify_opened_Xcode_sources.workflow.

Basically reworked it a bit to be functional for the latest version of Uncrustify by modifying the generated document.wflow within the Uncrustify_opened_Xcode_sources.workflow application. Runs great for me, but might need adjustments. I only changed lines 99-105. I deleted the blockers.

https://github.com/heliumroe/Xcode-formatter/compare/octo-online:master...patch-1?quick_pull=1 for more details!

if (suffix = "m" or suffix = "h") then

tell application "Xcode" to (do shell script "'/usr/local/bin/uncrustify' -c " & "'" & uncrustifyConfigFilePath & "' -l OC --no-backup '" & currentDocumentPath & "'")

end if

end repeat
display dialog "DONE"
end tell

Answer 2

Turns out it's a bug with Xcode-formatter, which does its magic in AppleScript. What we need is a wildcard or a regex in AppleScript to escape the \n linefeeds embedded in strings.

More info here:

https://github.com/octo-online/Xcode-formatter/issues/7

EDIT:

I found a workaround.

NSInteger newLineAsciiCode = 10;
NSString *newLineCharacter = [NSString stringWithFormat:@"%c", newLineAsciiCode];
NSString *someString = [NSString stringWithFormat:@"Lorem ipsum dolor.%@Eget nisl nec risus", newLineCharacter];