escaping

问题 I've been using gsub("toreplace","replacement", myvector) to clean out data in R. While this works for commas and the like, removing "$" has no effect. So if I do gsub("$","",myvector) all the dollar signs remain in place. I think this is because $ is a special character in R. I tried escaping it "\$" but that yields the same result (no effect). And I couldn't find a resource on escaping special characters in R. Obviously I should do this in preprocessing. But I was wondering if anyone out

问题 I need a TextBox on a WPF control that can take in text like Commit\r\n\r (which is the .net string "Commit\\r\\n\\r" ) and convert it back to "Commit\r\n\r" as a .net string. I was hoping for a string.Unescape() and string.Escape() method pair, but it doesn't seem to exist. Am I going to have to write my own? or is there a more simple way to do this? 回答1: System.Text.RegularExpressions.Regex.Unescape(@"\r\n\t\t\t\t\t\t\t\t\tHello world!") Regex.Unescape method documentation 回答2: Hans's code,

问题 Special characters in batch files are a pain, but I haven't found the right workaround for properly escaping the first two characters of this particular string I'm trying to pass the application. SET pass=^&AntiBatchfileString A_Program.exe /pass=%pass% Things I have tried: :: Escaping the escape twice, first for ^, second for &. SET pass=^^^^&AntiBatchfileString echo %pass% :: Combining escapes. SET first=^^ SET second=^^&AntiBatchfileString SET pass=%first%%second% echo %pass% :: Preventing

问题 Special characters in batch files are a pain, but I haven't found the right workaround for properly escaping the first two characters of this particular string I'm trying to pass the application. SET pass=^&AntiBatchfileString A_Program.exe /pass=%pass% Things I have tried: :: Escaping the escape twice, first for ^, second for &. SET pass=^^^^&AntiBatchfileString echo %pass% :: Combining escapes. SET first=^^ SET second=^^&AntiBatchfileString SET pass=%first%%second% echo %pass% :: Preventing

问题 Before I go and create a custom tag or Java method to do it, what is the standard way to escape HTML characters in JSP? I have a String object and I want to display it in the HTML so that it appears to the user as is. For example: String a = "Hello < World"; Would become: Hello < World 回答1: Short answer: <c:out value="${myString}"/> there is another option: <%@taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %> ${fn:escapeXml(myString)} 来源： https://stackoverflow.com/questions

问题 This question already has answers here : replace double quotes with '\"' in python (2 answers) Closed last year . I want to insert a \ before each quotes in my string to insert it to my SQL database using pymysql. If I don't escape quotes I can not insert strings in my database. For exemple: str = "ok I'm ready" must be : str = "ok I\'m ready" but print str must be : "ok I'm ready" To perform it I have done: str = str.replace("'", "\'") But it's not working and I still can not insert my

问题 I'm new with python. Could anybody help me on how I can create a regular expression given a list of strings like this: test_string = "pero pero CC tan tan RG antigua antiguo AQ0FS0 que que CS según según SPS00 mi mi DP1CSS madre madre NCFS000" How to return a tuple like this: > ([madre, NCFS00],[antigua, AQ0FS0]) I would like to return the word with it's associated tag given test_string, this is what I've done: # -- coding: utf-8 -- import re #str = "pero pero CC " \ "tan tan RG " \ "antigua

问题 I'm new with python. Could anybody help me on how I can create a regular expression given a list of strings like this: test_string = "pero pero CC tan tan RG antigua antiguo AQ0FS0 que que CS según según SPS00 mi mi DP1CSS madre madre NCFS000" How to return a tuple like this: > ([madre, NCFS00],[antigua, AQ0FS0]) I would like to return the word with it's associated tag given test_string, this is what I've done: # -- coding: utf-8 -- import re #str = "pero pero CC " \ "tan tan RG " \ "antigua

问题 I am trying to write a indexeddb function "delete". It should read like this in JS: var transaction = db.transaction('objectStore','readwrite'); var objectStore = transaction.objectStore('objectStore'); objectStore.delete(id); However, when I write it in CS: transaction = db.transaction 'objectStore','readWrite' objectStore = transaction.objectStore 'objectStore' objectStore.delete(id) Of course it outputs: ... objectStore["delete"](id); I didn't write a method for IDBTransaction called

问题 Scenario : When <div> text has double quote. JQuery method to append dynamic input and to alert the value of input is not working. I know this issue trigger when escaping quotes. Can someone review the code? var divText = $("div").text(); $('form:not(:has([name="' + divText + '"]))').append($('<input>', { type: 'text', value: divText, name: divText })); alert($('[name="' + divText + '"]').val()); <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div>"<