Suppose I use the following expression to parse a website
library(XML)
url.df_1 = htmlTreeParse(“http://www.appannie.com/app/android/com.king.candycrushsaga/”, useInternalNodes = T) If I run
Tag: expression
What is a regular expression of a valid XML name?
[a-zA-Z_:]([a-zA-Z0-9_:.])* Will this be?
NameStartChar ::= “:” | [AZ] | “_” | [az] | [#xC0-#xD6] |
[#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D ] |
[#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-
Regular expression – automatically inserts a newline in the long string
Is it possible to insert a newline character in such a string so that it can be adjusted automatically so as not to split words?
nif <- as.character(c("I am a string", "So am I", "I am also
Regular expression – What is the regular expression of the Jabber ID?
Now I am using this regular expression:
^\A([a-z0-9\.\ -_\+]+)@((?:[-a-z0-9]+\.)+[az]{2,})\Z$ I think this is not very good. So what is the best regular expression you have or have seen when
Regular expression – strings in the single click using Perl
My opinion:
my $tmp = “rrccllrrc”; Expected output :
$tmp = “right right center center left left right right center”; #End should not be spaced definitely. My code:< /p>
$tmp=~s/c
Regular filtration special expressions
/**[ Filter and upload special emoticons Symbolic]
* @param $str
* @return mixed
*/
function filter_emoji($str)
{
$str = preg_replace_callback( //Perform a regular expression search and r
Floating point regular expression between 0 and 1
I am trying to verify the input of floating-point numbers, where the maximum value is 1.0 and the minimum value is 0.
Min: 0
Max: 1 Possible value;
0.1
0.99
0.365 How can I succeed wit
Regular expression – What is the best way to verify the URL input by the user in the Cocoa application?
I am trying to build a self-made web browser in order to become more proficient in Cocoa. I need a good way to verify whether the user has entered a valid URL. I have tried some regular Expressions
Regular expression – there is no slash
How will I make this rule so that you can access it with and without slashes?
RewriteRule ^members/([^/]+)$members.php?id=$1 [L] RewriteRule ^members/([^/]+)/?$members.php?id=$1 [L] Just a
Regular expression greedy
I’m sure this is easy, but I tried many changes, but still can’t meet my needs. Things are too greedy, I can’t make it stop greedy. Given the text:
test=this=that=more text follows I want to