Remove quotes from a character vector in R
Just try noquote(a) noquote(“a”) [1] a
Just try noquote(a) noquote(“a”) [1] a
According to php.net To specify a literal single quote, escape it with a backslash (\). It means you could have: <?php echo ‘<span onclick=”$(this).addClass(\’selected\’);”> </span>’; ?>
In your last example, echo “$(echo ‘!b’)” the exclamation point is not single-quoted. Because history expansion occurs so early in the parsing process, the single quotes are just part of the double-quoted string; the parser hasn’t recognized the command substitution yet to establish a new context where the single quotes would be quoting operators. To … Read more
execl(“/home/vlc”, “/home/vlc”, “/home/my movies/the movie i want to see.mkv”, (char*) NULL); You need to specify all arguments, included argv[0] which isn’t taken from the executable. Also make sure the final NULL gets cast to char*. Details are here: http://pubs.opengroup.org/onlinepubs/9699919799/functions/exec.html
Everyone who did the test concluded that using single quotes is marginally better performance wise. In the end single quotes result in just a concatenation while double quotes forces the interpreter to parse the complete string for variables. However the added load in doing that is so small for the last versions of PHP that … Read more
It causes escape sequences to be interpreted. $ echo $’Name\tAge\nBob\t24\nMary\t36′ Name Age Bob 24 Mary 36 After those sequences are expanded, the result is single-quoted, as if the dollar sign had not been present.
What you’ve got there is an example of Friedl’s “unrolled loop” technique, but you seem to have some confusion about how to express it as a string literal. Here’s how it should look to the regex compiler: “[^”\\]*(?:\\.[^”\\]*)*” The initial “[^”\\]* matches a quotation mark followed by zero or more of any characters other than … Read more
" is on the official list of valid HTML 4 entities, but ' is not. From C.16. The Named Character Reference ‘: The named character reference ' (the apostrophe, U+0027) was introduced in XML 1.0 but does not appear in HTML. Authors should therefore use ' instead of ' to work as expected in HTML … Read more
This variant – <a title=”Some "text"”>Hover me</a> Is correct and it works as expected – you see normal quotes in rendered page.
Put quite simply: SELECT ‘This is Ashok”s Pen.’; So inside the string, replace each single quote with two of them. Or: SELECT ‘This is Ashok\’s Pen.’ Escape it =)