wildcard

问题 Is there a way to put a wildcard in a string? The reason why I am asking is because currently I have a function to search for a substring between two substrings (i.e grab the contents between "my" and "has fleas" in the sentence "my dog has fleas", resulting in "dog"). function get_string_between($string, $start, $end){ $string = " ".$string; $ini = strpos($string,$start); if ($ini == 0) return ""; $ini += strlen($start); $len = strpos($string,$end,$ini) - $ini; return substr($string,$ini,

问题 Is there a way to put a wildcard in a string? The reason why I am asking is because currently I have a function to search for a substring between two substrings (i.e grab the contents between "my" and "has fleas" in the sentence "my dog has fleas", resulting in "dog"). function get_string_between($string, $start, $end){ $string = " ".$string; $ini = strpos($string,$start); if ($ini == 0) return ""; $ini += strlen($start); $len = strpos($string,$end,$ini) - $ini; return substr($string,$ini,

问题 I need to extract the filename from a path (a string): e.g., "C:\folder\folder\folder\file.txt" = "file" (or even "file.txt" to get me started) Essentially everything before and including the last \ I've heard of using wildcards in place of Regex (as it's an odd implementation in VBA?) but can't find anything solid. Cheers in advance. 回答1: I believe this works, using VBA: Dim strPath As String strPath = "C:\folder\folder\folder\file.txt" Dim strFile As String strFile = Right(strPath, Len

问题 I'm just starting with Python on Google App Engine building a contact database. What is the best way to implement wildcard search? For example can I do query('name=', %ewman%)? 回答1: Unfortunately, Google app engine can't do partial text matches From the docs: Tip: Query filters do not have an explicit way to match just part of a string value, but you can fake a prefix match using inequality filters: db.GqlQuery("SELECT * FROM MyModel WHERE prop >= :1 AND prop < :2", "abc", u"abc" + u"\ufffd")

问题 I'm just starting with Python on Google App Engine building a contact database. What is the best way to implement wildcard search? For example can I do query('name=', %ewman%)? 回答1: Unfortunately, Google app engine can't do partial text matches From the docs: Tip: Query filters do not have an explicit way to match just part of a string value, but you can fake a prefix match using inequality filters: db.GqlQuery("SELECT * FROM MyModel WHERE prop >= :1 AND prop < :2", "abc", u"abc" + u"\ufffd")

问题 Given the following two class definitions: class C1<T extends C1<T>> {} class C2<U> extends C1<C2<U>> {} Consider the following type declaration: C1<? extends C2<String>> c; This compiles fine in JDK-8u45, but if we examine the specification for capture conversion, it appears (to me) that this declaration should result in a compile time error. In particular, the upper bound of the new type variable capture T#1 is given by glb(Bi, Ui[A1:=S1,...,An:=Sn]) , where in this case Bi resolves to the

问题 I have a column like this: What devices will you be using? iPad Kindle & iPad No Tablet iPad iPad & Windows How do I count the amount of people that said iPad? This formula does work for exact matches but not if it contains an additional value: =(COUNTIF(A2:A51,"=iPad")/COUNTA(A2:A51))*1 Any Suggestions? 回答1: It will likely have been solved by now, but I ran accross this and figured to give my input =COUNTIF(a2:a51;"*iPad*") The important thing is that separating parameters in google docs is

问题 I have a file down deep in my git tree: $ git ls-files | grep /Expression.java sm/src/main/java/cl/utilities/sm/Expression.java I'd like to get a log of its activity without having to type the whole path. Basically I want this output: $ git log --oneline -2 sm/src/main/java/cl/utilities/sm/Expression.java 2718cdc cleaned up some warnings f30cf15 Added missing @Overrides ... but without having to type sm/src/main/java/cl/utilities/sm . I tried lots of things, but none of them worked: $ git log

问题 I'm writing a simple debugging program that takes as input simple strings that can contain stars to indicate a wildcard match-any *.wav // matches <anything>.wav (*, a) // matches (<anything>, a) I thought I would simply take that pattern, escape any regular expression special characters in it, then replace any \\* back to .* . And then use a regular expression matcher. But I can't find any Java function to escape a regular expression. The best match I could find is Pattern.quote , which

问题 I want to use the parameter place holder - e.g. ?1 - with the % wild cards. that is, something like: "u.name LIKE %?1%" (though this throws an error). The docs have the following two examples: 1. // Example - $qb->expr()->like('u.firstname', $qb->expr()->literal('Gui%')) public function like($x, $y); // Returns Expr\Comparison instance I do not like this as there is no protection against code injection. 2. // $qb instanceof QueryBuilder // example8: QueryBuilder port of: "SELECT u FROM User u