escaping

is there an quick way to find(and remove) all escape sequences from a Stream/String?? shamim Hope bellow syntax will be help full for you string inputString = @"hello world]\ "; StringBuilder sb = new StringBuilder(); string[] parts = inputString.Split(new char[] { ' ', '\n', '\t', '\r', '\f', '\v','\\' }, StringSplitOptions.RemoveEmptyEntries); int size = parts.Length; for (int i = 0; i < size; i++) sb.AppendFormat("{0} ", parts[i]); The escape sequences that you are referring to are simply text based represntations of characters that are normally either unprintable (such as new lines or tabs

I need to escape characters like ^ , . , [ , ] , + and \ (tabs and newlines won't be an issue), while leaving others like * and ? . EDIT = More specifically, I have a string with these characters, and I need to escape them so that they are not matched by regular expressions. I need to prepend \ to each of these characters, but doing so individually would take 7 or 8 scans and I'd like to do it within just one pass (IE: anything that matches is prepended with \ ) How do I do this? Thanks. Would this work? StringBuilder sb = new StringBuilder(); for (char c : myString.toCharArray()) { switch(c)

We know that to prevent SQL injection problems string values must be escaped before the SQL query is composed -- particularly those from users or other external sources. When should this escaping be done? Should it be done as the value enters the program, storing the escaped value for later use? Or should store the unescaped value, and escape it just as the query is being composed? Which approach is safer? What is the tradeoff? 1) example of escaping as the value is received: $test = $mysqli->real_escape_string($_POST['test']); . . . $query=" UPDATE * from test_panel where test='" . $test . "'

I am using php5.3.6 and mysql 5.1.56 and CodeIgniter. Here is what I did. Input some text in textarea, something like this: what's this? I'm bob. $string = $_POST['name']; $insertdata = mysql_real_escape_string($string); Insert $insertdata into database. It shows "what\'s this?\n\n\nI\'m bob."(without double quotes) in the table. Query the data stored in database, use stripslashes on it and then put it back to the textarea. It shows "what's this?nnnI'm bob."(without double quotes) in the textarea. My questions are: In step 4, shouldn't it be "what\'s this?\n\n\n I\'m bob." stored in the table?

The bash echo command isn't using the escaped characters like "\n" and "\t" echo "This is test string\nAnd this is next line" For the above input it displays This is test string\nAnd this is next line So how do I print on the next line? You need echo -e if you want escaped characters to be expanded: $ echo -e "This is test string\nAnd this is next line" This is test string And this is next line $ echo $'This is test string\nAnd this is next line' This is test string And this is next line ANSI-C Quoting Words of the form $'string' are treated specially. The word expands to string, with

Why might you use ''' instead of """ , as in Learn Ruby the Hard Way, Chapter 10 Study Drills ? There are no triple quotes in Ruby. Two String literals which are juxtaposed are parsed as a single String literal. So, 'Hello' 'World' is the same as 'HelloWorld' And '' 'Hello' '' is the same as '''Hello''' is the same as 'Hello' There are no special rules for triple single quotes vs. triple double quotes, because there are no triple quotes. The rules are simply the same as for quotes. mmln I assume the author confused Ruby and Python, because a triple-quote will not work in Ruby the way author

I'm having a problem trying to escape some code... Basically, I want to escape "<" and ">" but I want them to APPEAR in my #output div as "<" and ">". Currently, they appear as as "<" and ">" on the page. This is obviously to prevent anyone exploiting / injecting scripts on the page. This is my code: var textval = $("#textarea").val(); //textarea filtered = textval.replace(/</gi,"<"); //replace "<" $("#output").html(filtered); //insert textarea data into div Can anybody spot what I am doing wrong, or are there any better ways of doing this? Many thanks EDIT: I do want SOME html tags (like <b>