I am trying to read a CSV file which contains escaped quote values such as:
"1","unquoted text","\"quoted text\""
It seems that SuperCSV wants quotes to be quoted as
"1","unquoted text","""quoted text"""
Is there a way to change the escape character to a backslash? I've looked at the docs and not seen anything.
Just found a link to an issue logged in github: https://github.com/super-csv/super-csv/issues/14
Seems like a different CSV handler is in order.
Related
How can I escape an apostrophe in golang?
I have a string
s = "I've this book"
and I want to make it
s = "I\'ve this book"
How to achieve this?
Thanks in advance.
Escaping a character is only necessary if it can be interpreted in two or more ways. The apostrophe in your string can only be interpreted as an apostrophe, escaping is therefore not necessary as such. This is probably why you see the error message unknown escape sequence: '.
If you need to escape the apostrophe because it is inserted into a database, first consider using library functions for escaping or inserting data directly. Correct escaping has been the culprit of many security problems in the last decades. You will almost certainly do it wrong.
Having said that, you have to escape \ to do what you want (click to play):
fmt.Println("\\'") # outputs \'
As you're using cassandra, you can use packages like gocql which provide you with parametrized queries:
session.Query(`INSERT INTO sometable (text) VALUES (?)`, "'escaping'").Exec();
I have a teradata database name that contains a dash character -.
Searched the web but in vain. Does somebody know how can you escape the special characters in jdbc connection string? The string looks as follows:
jdbc:teradata://HostName/DATABASE=Database-Name
When I create a connection with this url I get syntax error. Also tried to put database parameter in single or double quotes, and to surround the special charachers with { }.
Thanks for help!
Finally found the answer here: https://jira.talendforge.org/browse/TDI-18863. The correct way is to enclose both parameter name and value in single quotes:
jdbc:teradata://HostName/'DATABASE=Database-Name'
Update: No, this does not work, see comment below.
Answering my own question:
My problem was that I didn't realise that my database name had some trailing whitespaces in the end.
TeraDriver uses single quotes to escape spaces and commas. This means that the database name should be in single quotes. If there are no single quotes, spaces and commas are considered to be the end of parameter value. If there are single quotes in database name, they should be presented as two single quote characters.
'Database-Name '
Whatever is within single quotes will be used with sql query: "database Database-Name". To escape '-' we need double quotes. So both single and double quotes in correct order should be used:
"jdbc:teradata://HostName/DATABASE='\"Database-Name\"'"
Have you tried a \ character which is supposed to be an escape character in Java?
jdbc:teradata://HostName/DATABASE=Database\-Name
I'm attempting to generate a url using a bunch of different variables however when I follow a variable with an underscore the variable after the underscore does not show up. However, if I put a space before the underscore then there is a space in the generated URL. So my question is, is there an escape character for doing the sort of thing I have described?
Also code:
URL="$baseURL$BUILD/TorBrowserBundle-$BUILD-$OS$BIT _$LANG.zip"
The issue occurs in between $BIT and $LANG.
you can use ${}
so something like
URL="${baseURL}${BUILD}/TorBrowserBundle-${BUILD}-${OS}${BIT}_${LANG}.zip"
I am creating a custom code highlight for notepad++. What I want to do is the following:
some fieldnames are writen in the code with a ' in front of their name, for exampe
if 'variable = "test" then ...
I would like to highlight these words, but notepad++ does not seem to allow a delimiter starting with ' and ending with a space, not does it allow space as an escape character. Also, using ' as a keyword and enabling prefix mode has no effect. Anyone has a suggestion? Should I use another expression to let notepad recognise the space/' ?
Thanks in advance!
If you only need to highlight a single word, you can use a keyword in prefix mode. However when using single or double quotes in a keyword, they need to be escaped with a backslash. So your keyword would be:
\'
This may not be possible in notepad++. I can get the behavior you want using a character other than a single quote, like a back-tic, but it doesn't seem to work with single or double quotes. I suspect those characters are treated special within the syntax highlighter.
I am attempting to send a tweet to twitter using the twitter_oauth gem with the following code:
client.update('.# #{tweeter}, have a nice day!')
Because of the single quotes I cannot get the variable to display but the tweet will not send if single quote are not used. Does anyone have any suggestions as to how to get this to work? thanks
Just replace the ' with ", single quoted strings don't do variable substitution and the other neat things of double quoted strings. They exist because of those missing features they are faster to parse.
If the tweet doesn't work despite using " then the problem is likely that the variable tweeter contains characters that are not allowed or in some other way invalid (maybe requiring some sort of escaping, e.g. URL or XML escaping).
Have you tried the old, java-esque way:
client.update('.# ' + tweeter + ', have a nice day!')
Or using a temporary variable:
message = ".# #{tweeter}, have a nice day!"
client.update(message)