evaluate

问题 I'm looking for a relatively simpler (when compared with writing a parser) way to evaluate boolean expressions in Java, and I do not want to use the JEP library. I have a String expression like: (x > 4 || x < 8 && p > 6) and my aim is to replace the variables with values. Is there a way by which I can evaluate this expression? Bear in mind that this can be any level deep so writing a parser would be very complex. 回答1: You could use the scripting engine in Java6 and the choose any of the

问题 i created a table using coldfusion lists system, rows are months and the columns are cities, and the variable is the sales, now i need to add to every evaluated sale variable, the list of companies that made these sales, so far there is no problem with writting the sql of this table and the sales, but i cant define-#evaluate# the list of these companies that belongs to each sale in the table, since it is the LIST of companies, not one variable like sale, i hope i made myself clear :) here is

问题 class A { public aCall(a: any, payload: string) {} public bCall(a: any, payload: number) {} public cCall(a: any) {} . . . } function createNewClass(aCtor: A) { // load all of the A method and remove first params // generic code on here // Final result should be like this return class B { public aCall(payload: string) {} public bCall(payload: number) {} } } // C.d.ts interface C extends createNewClass(A) {} Can I have a function (or decorator on the method) to evaluate the incoming class and

问题 I am trying to use jQuery and casperjs to click an element retrieved from the DOM. casper.options.clientScripts = ["jquery-1.11.1.min.js"]; ... ... casper.then(function() { this.wait(2000,function() { this.evaluate(function() { var element = $('h4:contains("test")').prev().find('.delete'); $(element).css("background-color", "red"); $(element)[0].click(); }); }); )}; I have used $(element).css("background-color", "red"); to see exactly what element jquery is selecting, (I have used capture()

问题 I have an email body stored as a string in a database, something like this: This is an email body containing lots of different variables. Dear #name#, <br/> Please contact #representativeName# for further details. I pull this field from the database using a stored proc, and then I want to evaluate it on the coldfusion side, so that instead of "#name#", it will insert the value of the name variable. I've tried using evaluate, but that only seems to work if there's just a variable name. It

问题 I have a formula that is generated via a series of concatenated strings. This is better explained with an example: open a new Excel workbook A1 = 5 C1 = 5 & "+A1" [A1 is seen as text. C1 will contain "5+A1" ] I would like E1 to contain the result of C1 evaluated as a formula, so basically in this example 10. I tried to use INDIRECT(C1) but it did not work. UPDATE: It must work with Custom cell names. so if for example i assign the name "mycell" to A1, then the field C1 will contain "5+mycell"

问题 I am using the below code: Sub Evaluation_Formula() Dim i As Long With Worksheets("Sheet1") i = .Evaluate("MIN(IF((LEFT($B$1:$B$89,5)*1)=C1,$B$1:$B$89,""""))") .Range("F3").Value2 = i End With End Sub However, the formula is limited to B89, how can I use Last Row in Column B in the formula ? 回答1: For all intents and purposes you are really only concerned with the last number in column B, not specifically the last row. To do that in a worksheet formula you would use something like this array

问题 Is there any way to evaluate a string expression in XSL? example: <myItem id="1"> <validator expression="$someVariable = '3'" /> </myItem> ... <xsl:variable name="someVariable" select="3" /> <xsl:if test="@expression"> ... I realize this syntax does not work the way I want it to, but is there any way to store the test expression in a variable and then evaluate the expression? 回答1: A dynamic evaluate did not make it into XSLT 2.0, according to Michael Kay (XSLT 2.0 and XPath 2.0, 4th ed. p

问题 I'm trying to create a grammar in ANTLR that evaluates propositional logic formulas. So for the input (1 & 0) | 1 , it should return true . I have constructed the following: code returns[boolean value] : formula EOF {$value = $formula.value;} ; formula returns [boolean value] : equiv {$value = $equiv.value;} ; equiv returns [boolean value] : a=implies {$value = $a.value;} ( '#' b=implies {$value = $value == $b.value;} )* ; implies returns [boolean value] : a=or {$value = $a.value;} ( '>' b=or

问题 This is my PHP code: <?php error_reporting(E_ALL); ini_set("display_errors",1); ini_set('max_execution_time', 36000); //300 seconds = 5 minutes $url = 'http://www.sportstats.com/soccer/matches/20170815/'; libxml_use_internal_errors(true); $doc = new DOMDocument(); $doc->loadHTMLFile($url); $xpath = new DOMXpath($doc); $data = array( 'HomeTeam' => $xpath->evaluate('string(//td[@class="table-home"]/a)'), 'AwayTeam' => $xpath->evaluate('string(//td[contains(@class, "table-away")]/a)'), 'FtScore'