I tried the following regular expression
newData.val().matches(/(^\d{5}$)|(^\d{5}-\d{4}$)/)
I get an error that the escape character \d isn't recognized. I removed and cleared the errors but I still get a permission denied error.
You must use double slashes \\.
It will look like
newData.val().matches(/(^\\d{5}$)|(^\\d{5}-\\d{4}$)/)
Take some time observing some of the examples that you can find on the documentation.
Related
Situation.. I have two tags defined, then I try to output them to the console. What comes out seems to be similar to an array, but I'd like to remove the formatting and just have the actual words outputted.
Here's what I currently have:
[Tags] ready ver10
Log To Console \n#{TEST TAGS}
And the result is
['ready', 'ver10']
So, how would I chuck the [', the ', ' and the '], thus only retaining the words ready and ver10?
Note: I was getting [u'ready', u'ver10'] - but once I got some advice to make sure I was running Python3 RobotFramework - after uninstalling robotframework via pip, and now only having robotframework installed via pip3, the u has vanished. That's great!
There are several ways to do it. For example, you could use a loop, or you could convert the list to a string before calling log to console
Using a loop.
Since the data is a list, it's easy to iterate over the list:
FOR ${tag} IN #{Test Tags}
log to console ${tag}
END
Converting to a string
You can use the evaluate keyword to convert the list to a string of values separated by a newline. Note: you have to use two backslashes in the call to evaluate since both robot and python use the backslash as an escape character. So, the first backslash escapes the second so that python will see \n and convert it to a newline.
${tags}= evaluate "\\n".join($test_tags)
log to console \n${tags}
I'm brand new to R Project.
I've tried to import using the file path, and no matter what path way I use I get this same error. It says the back slash and the first character after it is an unrecognized escape.
I can import files by using the file.choose() function and manually navigating to my file, but I need to be able to use the file path method in code so that I can run multiple iterative steps without having to be there to choose the file at every point.
Does anyone have any ideals on why this error might occur? Is there anything wrong with my code? Is there some kind of configuration I need to do?
Thanks.
Data1 <- read.table(file="\Head-Location-001\MarketingAnalysis\Competitive Intelligence\Stick Rate\Last week\Test.cvs" sep",", header=TRUE)
Error: '\C' is an unrecognized escape in character string starting ""\fknp-sfs-001\fknmktanlys\
Import Error
replace all the \ with \\.
it's trying to escape the next character in this case the C so to insert a \ you need to insert an escaped \ which is \\
or
Replacing them with / works as well
I am trying to gather all instances of "Walloni\xeb" within a data-frame column in order to remove "\" using the grep function. However, I'm getting the following error message as shown below:
grep("Walloni\xeb", InvoAndinfo2$Regio)
Error in grep("Walloni\xeb", InvoAndinfo2$Regio) :
regular expression is invalid in this locale
Does anyone know what to do to resolve this?
The backslash is a special character in regexp, if you want to look for a string that has a backslash, you should escape it by adding another backslah in front of it.
Try:
grep("Walloni\\xeb", InvoAndinfo2$Regio)
Is it possible to disable Command Substitution in Bash?
I want to pass a string containing several backticks characters as command-line argument to a program, without trailing backslashs or quoting the string.
Thank you.
I assume there is a misconception which grounds your question. Quoting is most likely the solution to your situation. But maybe you haven't found the right way of quoting yet or similar.
If your dangerous string shall be verbatim (without quoting or escaping) in the source code, you can put it in a separate file and read it from there:
dangerous_string=$(cat dangerous_string_file.txt)
If it shall be passed without interpretation to a command, use the double quotes to prevent interpretation:
my_command "$dangerous_string"
If you have to pass it to a command which needs to receive a quoted version of your string because it is known to carelessly pass the string without using sth like the double quotes to prevent interpretation, you can always use printf to get a quoted version:
quoted_dangerous_string=$(printf "%q" "$dangerous_string")
careless_command "$quoted_dangerous_string"
If all these options do not help in your situation, please explain in more detail where your problem lies.
I'm trying to create a RegEx Validator that checks the file extension in the FileUpload input against a list of allowed extensions (which are user specified). The following is as far as I have got, but I'm struggling with the syntax of the backward slash (\) that appears in the file path. Obviously the below is incorrect because it just escapes the (]) which causes an error. I would be really grateful for any help here. There seems to be a lot of examples out there, but none seem to work when I try them.
[a-zA-Z_-s0-9:\]+(.pdf|.PDF)$
To include a backslash in a character class, you need to use a specific escape sequence (\b):
[a-zA-Z_\s0-9:\b]+(\.pdf|\.PDF)$
Note that this might be a bit confusing, because outside of character classes, \b represents a word boundary. I also assumed, that -s was a typo and should have represented a white space. (otherwise it shouldn't compile, I think)
EDIT: You also need to escape the dots. Otherwise they will be meta character for any character but line breaks.
another EDIT: If you actually DO want to allow hyphens in filenames, you need to put the hyphen at the end of the character class. Like this:
[a-zA-Z_\s0-9:\b-]+(\.pdf|\.PDF)$
You probably want to use something like
[a-zA-Z_0-9\s:\\-]+\.[pP][dD][fF]$
which is same as
[\w\s:\\-]+\.[pP][dD][fF]$
because \w = [a-zA-Z0-9_]
Be sure character - to put as very first or very last item in the [...] list, otherwise it has special meaning for range or characters, such as a-z.
Also \ character has to be escaped by another slash, even inside of [...].