I can't get to include quotation marks in the following string interpolator:
f"foo ${math.abs(-0.9876f)*100}%1.1f%%"
The output is
foo 98.8%
Now the desired output is
foo "98.8%"
Inserting \" doesn't work, only produces "unclosed string literal" errors.
Seems that this problem wouldn't be fixed. You can use one of the following workarounds:
multi-line strings:
f"""foo "${math.abs(-0.9876f)*100}%1.1f%""""
\042:
f"foo \042${math.abs(-0.9876f)*100}%1.1f%\042"
${'"'}:
f"foo ${'"'}${math.abs(-0.9876f)*100}%1.1f%${'"'}"
Related
I am working on the exercises from https://www.scala-exercises.org/std_lib/formatting
For the following question, m answer seems incorrect but I do not know why.
val c = 'a' //unicode for a
val d = '\141' //octal for a
val e = '\"'
val f = '\\'
"%c".format(c) should be("a") //my answers
"%c".format(d) should be("a")
"%c".format(e) should be(")
"%c".format(f) should be(\)
your answer should be enclosed in quotes
"%c".format(e) should be("\"")
"%c".format(f) should be("\\")
because it wouldn't recognize string unless it's enclosed in quotes
Your last two lines are invalid Scala code and cannot be compiled:
// These are wrong
"%c".format(e) should be(")
"%c".format(f) should be(\)
The be() function needs to be passed a String, and neither of those calls are being passed a String. A String needs to start and end with a double-quote (there are some exceptions).
// In this case you started a String with a double-quote, but you are never
// closing the string with a second double-quote
"%c".format(e) should be(")
// In this case you are missing both double-quotes
"%c".format(f) should be(\)
In this case the code should be:
"%c".format(e) should be("\"")
"%c".format(f) should be("\\")
If you want a character to be treated literally in a String, you need to "escape" it with a backslash. So if you want to literally show a double-quote, you need to prefix it with a backslash:
\"
And as a String:
"\""
Similarily for a backslash:
\\
As a String:
"\\"
Using an IDE makes this easier to see. Using IntelliJ the String is green but the special non-literal characters are highlighted in orange.
Check quote signs.
https://www.tutorialspoint.com/scala/scala_strings.htm
https://docs.scala-lang.org/overviews/core/string-interpolation.html
https://learnxinyminutes.com/docs/scala/
You can run Scala code online and check yourself here:
https://scastie.scala-lang.org
https://ideone.com/
I have
myVar.value = 123521#machine OK
now I'm using this variable with system command as it's an argument passed to a binary .exe
so I have to add quotes to myVar.value as it caontains spaces
I tried :
'''myVar.value''' but this will give 'myVar.value', whereas I just want to have the result equal to "123521#machine OK"
how could I use the quotes in this case ?
Try this:
x = ['"' myVar.value '"']
I think you can use double quote characters within strings demarcated by single quotes. Within a string demarcated by single quotes characters by doubling up:
x = ['''' myVar.value '''']
How do I pass double quotes as a parameter in powershell? For example, I need to execute this line but K="Key words" has to be in double quote
$Ie.Navigate2("http://inside.nv.com/demo/Search/Pages/results_Table.aspx?k="Boiling Point"(CreatedBy:Broussard AND Write>=6/1/2015 AND Write<=6/30/2015)", 0x10000)
Try to escape the " which is part of the parameter string with
`
so, in your case it will be like below -
$Ie.Navigate2("http://inside.nv.com/demo/Search/Pages/results_Table.aspx?k=`"Boiling Point`"(CreatedBy:Broussard AND Write>=6/1/2015 AND Write<=6/30/2015)", 0x10000)
Use encoding. The (") character would correspond to %22.
https://en.wikipedia.org/wiki/Percent-encoding
I need to make some Windows file paths that contain spaces into string literals in Scala. I have tried wrapping the entire path in double quotes AND wrapping the entire path in double quotes with each directory name that has a space with single quotes. Now it is wanting an escape character for "\Jun" in both places and I don't know why.
Here are the strings:
val input = "R:\'Unclaimed Property'\'CT State'\2015\Jun\ct_finderlist_2015.pdf"
val output = "R:\'Unclaimed Property'\'CT State'\2015\Jun"
Here is the latest error:
The problem is with the \ character, that has to be escaped.
This should work:
val input = "R:\\Unclaimed Property\\CT State\\2015\\Jun.ct_finderlist_2015.pdf"
val output = "R:\\Unclaimed Property\\CT State\\2015\\Jun"
A cleaner way to create string literals is to use triple quotes.
You can wrap your string directly in triple quotes without escaping special characters. And you can put multiple lines string in it.
It's much easier to code and read.
For example
val input =
"""
|R:\Unclaimed Property\CT State\2015\Jun.ct_finderlist_2015.pdf
"""
To add a variable to the string, do it like the following by adding "$variableName".
val input =
s"""
|R:\Unclaimed Property\$variablePath\CT State\2015\Jun.ct_finderlist_2015.pdf
"""
I am having difficulties replacing a string containing special characters using sed. My old and new string are shown below
oldStr = "# td=(nstates=20) cam-b3lyp/6-31g geom=connectivity"
newStr = "# opt b3lyp/6-31g geom=connectivity"
My sed command is the following
sed -i 's/\# td\=\(nstates\=20\) cam\-b3lyp\/6\-31g geom\=connectivity/\# opt b3lyp\/6\-31g geom\=connectivity/g' myfile.txt
I dont get any errors, however there is no match. Any ideas on how to fix my patterns.
Thanks
try s|# td=(nstates=20) cam-b3lyp/6-31g geom=connectivity|# opt b3lyp/6-31g geom=connectivity|g'
you can use next to anything after s instead of /, as your expression contains slashes I used | instead. -, = and # don't have to be escaped (minus only in character sets [...]), escaped parens indicate a group, nonescaped parens are literals.