VSCode extension: Matching brackets inside quotes - vscode-extensions

By default, bracket matching doesn't understand strings and so will match brackets inside of quotes.
Steps to reproduce:
Start the language-configuration-sample extension
Type the following line in the file,
[ "]" ]
Move the cursor to the start of the line and hit Ctrl-\
The open bracket will match with the bracket inside the quotes.
The same behavior happens with anything defined as "brackets" in the config.
I've noticed language extensions like java, python, etc do not have this behavior. How do they get around it? I've looked through their code and haven't seen anything that looks related.

Related

VSCode language extension match parenthesis in quotes

I'm writing a language extension for lisp and have noticed a weird behavior. If I have something like this,
( "(" a b )
VSCode will match the closing parenthesis with the one in quotes. If I have the cursor between the a and the b and do an expand selection, it selects from the quoted open parens to the closing parens.
What controls this behavior? How do I get it to ignore the one in quotes?
I've tried messing with different settings in language-configuration.json, but nothing has worked so far. The only other thing I can think of would be the wordPattern regex, which I copied from somewhere. It's currently set to,
"wordPattern": "[^:()# \t\n\r][^:() \t\n\r]*"

Escaping custom character in objective-c

I am working on macOS, not iOS, XCode 11.
My app allows in a specific location to enter text. This text can be anything. Once done it exports a csv which will be passed to an external process i cannot influence.
The issue: the external process uses semicolon ";" as a separator (csv is separated differently). If the user writes semicolon the external process will fail.
If I manually add an escaping backslash before each semicolon to the csv and then pass it to the external app it works.
What I need: having each semicolon escaped with ONE backslash in the final csv
What I tried
Escaping the whole text with quotation marks - fail
Escaping semicolons in objective-c before writing csv by trying
stringByReplacingOccurrencesOfString (look for #";" replace with #"\;" - compiler throws a warning that escape character is unknown - fail
Appreciate any help
UPDATE:
I also tried to set a double backslash like #Corbell mentioned but this leads in a double backslash in the exported CSV -> fail
I also tried to set a single backslash by using its unicode character:
[NSString stringWithFormat:#"%C;",0x5C]; --> "\\;"
Also failed and produces two backslashes in the final CSV (where i need ONE only).
In your stringByReplacingOccurencesOfString call, second parameter, try escaping your backslash with a backslash to make it a literal character to insert, i.e. #"\\;" - otherwise the compiler thinks you're trying to specify #"\;" as an escape sequence (backslash-semicolon) which is invalid.
Solved. It was the CSV Parser that added additional escaping characters. Once solved that it worked like a charm.

Multi-line text in a .env file

In vue, is there a way to have a value span multiple lines in an .env file. Ex:
Instead of:
someValue=[{"someValue":"Here is a really really long piece which should be split into multiple lines"}]
I want to do something like:
someValue=`[{"someValue":"Here is a really
really long piece which
should be split into multiple lines"}]`
Doing the latter gives me a JSON parsing error if I try to do JSON.parse(someValue) in my code
I don't know if this will work, but I can't format a comment appropriately enough to get the point across so see if this will work:
someValue=[{"someValue":"Here is a really\
really long piece which\
should be split into multiple lines"}]
Where "\" should escape the newline similar to how you can write long bash commands while escaping the newline. I'm not certain the .env interpreter will support it though.
EDIT
Looks like this won't work. This syntax was actually proposed, but I don't think it was incorporated. See motdotla/dotenv#333 (which is what Vue uses to parse .env).
Like #zero298 said, this isn't possible. Likely you could delimit the entry with a character that wouldn't show up normally in the text (^ is a good candidate), then parse it within the application using string.replace('^', '\n');

Sending an argument to batch file with spaces. VB

I am using a VB to run .bat file and to pass arguments to it.
Right now I managed to run it and to send the arguments to it, but ran into a problem. My arguments might contain spaces inside. I was trying to use quotes, but it didn't seem to work as I expected. So what I am doing:
Running this code: System.Diagnostics.Process.Start("C:\Users\XXXXXXX\Desktop\New.bat", """"+data+"""")
where 'data' is the argument I am sending. For testing it contains the value:
Hel loo
Inside the .bat file I have a code, that opens notepad and writes the argument inside it. With this code I have managed to pass the argument as one with spaces, but the result is:
"Hel loo"
Any ideas how to get rid of the quotes on each side, while still passing the argument as one with spaces?
I cannot escape them or replace with another symbol. This solution needs to pass the argument as one with spaces inside. Is this possible? The program I am working with is not important.
EDIT
This is the content of the .bat file:
set directory_Rexe="C:\Users\XXXXXXX\Desktop\testBat.txt"
set var=%1
echo %var%>%directory_Rexe%
%directory_Rexe%
You have three options here:
Use %~1, which will strip the quotes.
Don't care about putting everything into argument 1 and quoting and use %* instead. You mentioned not wanting that, though.
Don't pass the string as an argument, but as an environment variable instead. This also helps a lot when you have a number of characters in it that need to be escaped.
All options require you to change the batch file, though.
I'd also question the need for a batch file when you have a perfectly capable programming language already at your fingertips. Writing text to a file should actually be easier from VB.

Using CMake's include_directories command with white spaces

I am using CMake to build my project and I have the following line:
include_directories(${LLVM_INCLUDE_DIRS})
which, after evaluating LLVM_INCLUDE_DIRS, evaluates to:
include_directories(C:\Program Files\LLVM\include)
The problem is that this is being considered two include directories, "C:\Program" and "Files\LLVM\include".
Any idea how can I solve this problem? I tried using quotation marks, but it didn't work.
EDIT: It turned out that the problem is in the file llvm-3.0\share\llvm\cmake\LLVMConfig.cmake. I enclosed the following paths with quotation marks and the problem was solved:
set(LLVM_INSTALL_PREFIX C:/Program Files/LLVM)
set(LLVM_INCLUDE_DIRS ${LLVM_INSTALL_PREFIX}/include)
set(LLVM_LIBRARY_DIRS ${LLVM_INSTALL_PREFIX}/lib)
In CMake,
whitespace is a list separator (like ;),
evaluating variable names basically replaces the variable name with its content and
\ is an escape character (to get the symbol, it needs to be escaped as well)
So, in your example, include_directories(C:\\Pogram Files\\LLVM\\include) is the same as
include_directories( C:\\Program;Files\\LLVM\\include)
that is, a list with two items. To avoid this, either
escape the whitespace as well:
include_directories( C:\\Program\ Files\\LLVM\\include) or
surround the path with quotation marks:
include_directories( "C:\\Program Files\\LLVM\\include")
Obviously, the second option is the better choice as it is
simpler and easier to read and
can be used with variable evaluation like in your example (since the result of the evaluation is then surrounded by quotation marks and thus, treated a single item)
include_directories("${LLVM_INCLUDE_DIRS}")
This works as well, if LLVM_INCLUDE_DIRS is a list of multiple directories because the items in this list will then be explicitly separated by ; so that there is no need for unquoted whitespace as implicit list item separator.
Side note:
When using hard-coded path-names (for whatever reason) in my CMake files, I usually uses forward slashes as directory separators as this works on Windows as well and avoids the need to escape all backslashes.
This is more likely to be an error at the point where LLVM_INCLUDE_DIRS is set rather than a problem with include_directories.
To check this, try calling include_directories("C:\\Program Files\\LLVM\\include") - it should work correctly.
The problem seems to be that LLVM_INCLUDE_DIRS was constructed without using quotation marks. Try for example running this:
set(LLVM_INCLUDE_DIRS C:\\Program Files\\LLVM\\include)
message("${LLVM_INCLUDE_DIRS}")
set(LLVM_INCLUDE_DIRS "C:\\Program Files\\LLVM\\include")
message("${LLVM_INCLUDE_DIRS}")
The output is:
C:\Program;Files\LLVM\include
C:\Program Files\LLVM\include
Note the semi-colon in the first output line. This is a list with 2 items.
So the way to fix this is to modify the way in which LLVM_INCLUDE_DIRS is created.