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  • Simple XML parser in bison/flex

    - by user360872
    I would like to create simple xml parser using bison/flex. I don't need validation, comments, arguments, only <tag>value</tag>, where value can be number, string or other <tag>value</tag>. So for example: <div> <mul> <num>20</num> <add> <num>1</num> <num>5</num> </add> </mul> <id>test</id> </div> If it helps, I know the names of all tags that may occur. I know how many sub-tag can be hold by given tag. Is it possible to create bison parser that would do something like that: - new Tag("num", 1) // tag1 - new Tag("num", 5) // tag2 - new Tag("add", tag1, tag2) // tag3 - new Tag("num", 20) // tag4 - new Tag("mul", tag4, tag3) ... - root = top_tag Tag & number of sub-tags: num: 1 (only value) str: 1 (only value) add | sub | mul | div: 2 (num | str | tag, num | str | tag) Could you help me with grammar to be able to create AST like given above?

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  • filter by multiple attributes

    - by cosy
    I have the table : id id_products id_atribut name value 1 13 8 autdio 2.1 2 13 9 hdd 200 Gb 3 13 10 cd-rom 2 4 20 8 audio 2.1 the problem is, how can i select from this table where name="audio" and value="2.1" and name="hdd" and value="200 gb" and return id_products=13 .... How can i do this?

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  • XSLT Similar functionality to SQL "WHERE LIKE"

    - by Fishcake
    I have the following XML <Answer> <Label>FCVCMileage</Label> <Value>3258</Value> <Iteration>0</Iteration> <DataType>NUMBER</DataType> </Answer> And need to get the Value underneath the Mileage label. However the 4 letter prefix to Mileage could be any 1 of 8 different prefixes. I know I could find the value by testing for every combination using xsl:if or xsl:choose but is there a more elegant way that would work similar to the following SQL and also wouldn't need changes to code being made if other prefixes were added. WHERE label LIKE '%Mileage' NB. There will only ever be 1 label element containing the word Mileage Cheers!

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  • How to pass checkbox array to Java from jsp

    - by eddy
    Hi, I'd like to know if there's any way to send data to the server for the selected rows using the checkboxes I've put on those rows? I mean , how can I send only the data of those selected rows to the server? Here's the html code I use: <table> <thead> <tr class="tableheader"> <td width="10%"></td> <td width="30%">Vehicle</td> <td width="40%">Driver</td> <td width="10%">Mileage</td> </tr> </thead> <tbody> <c:forEach items="${list}" var="item"> <tr> <td align="center"> <input type="checkbox" name="selectedItems" value="c:out value="${item.numberPlate}"/>"/> </td> <td align="left"><c:out value="${item.numberPlate}"/></td> <td align="left"><c:out value="${item.driver.fullName}" /></td> <td align="left"><input type="text" name="mileage" value="" /></td> </tr> </c:forEach> </tbody> </table> I really hope you can give some guidance on this. Thanks in beforehand.

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  • C# Fake Enum TypeInitializationException

    - by userk
    I'm trying to create a class that works as a flexible enum. I came with this idea, with 2 additional static methods that allow me to add new members to that list and get only members from that list. public class LikeEnum { private static List<LikeEnum> list = new List<LikeEnum>() { new LikeEnum("One"), new LikeEnum("Two") }; private string value; private LikeEnum(string value) { this.value = value; } } Unfortunately the List list is only initialized as null so this doesn't work... Any ideas or suggestions?

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  • CSS: Horizontal UL: Getting it centered

    - by Steve
    I'm trying to make a horizontal menu/list. It has a mix of independent buttons and buttons that are wrapped in their own individual forms. With much hacking I got all of the buttons, in forms and not in forms to align horizontally. I haven't been able to get the whole thing to center on the page though. Could someone point out to me what I am not seeing? <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> <link rel="shortcut icon" href="http://localhost:7001/nsd/images/favicon.ico"> <link rel="StyleSheet" href="veci_files/nsd.css" type="text/css"> <style type = "text/css"> #horizontal_li_menu_container ul { margin-left: auto; margin-right:auto; text-align:center; border: 1px solid green; width:1000px; } #horizontal_li_menu_container_ul { list-style-type: none; text-decoration: none; border: 1px solid red; } #horizontal_li_menu_container li { display: inline;float:left; } </style> </head> <body> <div id = "horizontal_li_menu_container"> <ul id = "horizontal_li_menu_container_ul"> <li> <input value="Update" onclick="location.href='#'" name="button" type="button"/> </li> <li> <form name="formExportVECI" method="post" action="exportveci"> <input name="person_id" value="661774" type="hidden"> <input name="submitExport" value="Export To Microsoft Excel" type="submit"> </form> </li> <li> <form id="ufdh" name="formImportVECI" action="importveci" method="post" enctype="multipart/form-data"> <input name="person_id" value="661774" type="hidden"> <input value="Import From Microsoft Excel" path="Upload" type="submit"> <input id="fileData" name="fileData" value="" type="file"> </form> </li> <li> <input value="Search/Home" onclick="location.href='search'" name="buttonHome" type="button"/> </li> </ul> </div> </body></html>

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  • Why does my jQuery/YQL call not return anything?

    - by tastyapple
    I'm trying to access YQL with jQuery but am not getting a response: http://jsfiddle.net/tastyapple/grMb3/ Anyone know why? $(function(){ $.extend( { _prepareYQLQuery: function (query, params) { $.each( params, function (key) { var name = "#{" + key + "}"; var value = $.trim(this); if (!value.match(/^[0-9]+$/)) { value = '"' + value + '"'; } query = query.replace(name, value); } ); return query; }, yql: function (query) { var $self = this; var successCallback = null; var errorCallback = null; if (typeof arguments[1] == 'object') { query = $self._prepareYQLQuery(query, arguments[1]); successCallback = arguments[2]; errorCallback = arguments[3]; } else if (typeof arguments[1] == 'function') { successCallback = arguments[1]; errorCallback = arguments[2]; } var doAsynchronously = successCallback != null; var yqlJson = { url: "http://query.yahooapis.com/v1/public/yql", dataType: "jsonp", success: successCallback, async: doAsynchronously, data: { q: query, format: "json", env: 'store://datatables.org/alltableswithkeys', callback: "?" } } if (errorCallback) { yqlJson.error = errorCallback; } $.ajax(yqlJson); return $self.toReturn; } } ); $.yql( "SELECT * FROM github.repo WHERE id='#{username}' AND repo='#{repository}'", { username: "jquery", repository: "jquery" }, function (data) { if (data.results.repository["open-issues"].content > 0) { alert("Hey dude, you should check out your new issues!"); } } ); });

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  • Create a multicolor selectbox on Symfony2

    - by Ninsuo
    I try to create the following field : <select name="test"> <option value="1">a</option> <option value="2">b</option> <option value="3" style="font-weight: bold; color: red;">c</option> <option value="4">d</option> <option value="5">e</option> </select> This creates a 2-color selectbox : But in Symfony2, I do not know how to apply a class to a single option. If in my view I do : {{ form_widget(myForm.test, { 'attr': { 'class': 'red', } }) }} Or if in my form I do : $builder->add('test', 'choice', array( 'required' => true, 'choices' => array('a', 'b', 'c', 'd', 'e'), 'attr' => array('class' => 'red'), )); The attribute is stored into the <select> tag and apply to the whole selectable values. How do I apply a class to an <option> in Symfony2 ?

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  • PHP syntax error “unexpected $end”

    - by Jacksta
    I have 3 files 1) show_createtable.html 2) do_showfielddef.php 3) do_showtble.php 1) First file is for creating a new table for a data base, it is a fom with 2 inputs, Table Name and Number of Fields. THIS WORKS FINE! <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> </head> <body> <h1>Step 1: Name and Number</h1> <form method="post" action="do_showfielddef.php" /> <p><strong>Table Name:</strong><br /> <input type="text" name="table_name" size="30" /></p> <p><strong>Number of fields:</strong><br /> <input type="text" name="num_fields" size="30" /></p> <p><input type="submit" name="submit" value="go to step2" /></p> </form> </body> </html> 2) this script validates fields and createa another form to enter all the table rows. This for also WORKS FINE! <?php //validate important input if ((!$_POST[table_name]) || (!$_POST[num_fields])) { header( "location: show_createtable.html"); exit; } //begin creating form for display $form_block = " <form action=\"do_createtable.php\" method=\"post\"> <input name=\"table_name\" type=\"hidden\" value=\"$_POST[table_name]\"> <table cellspacing=\"5\" cellpadding=\"5\"> <tr> <th>Field Name</th><th>Field Type</th><th>Table Length</th> </tr>"; //count from 0 until you reach the number fo fields for ($i = 0; $i <$_POST[num_fields]; $i++) { $form_block .=" <tr> <td align=center><input type=\"texr\" name=\"field name[]\" size=\"30\"></td> <td align=center> <select name=\"field_type[]\"> <option value=\"char\">char</option> <option value=\"date\">date</option> <option value=\"float\">float</option> <option value=\"int\">int</option> <option value=\"text\">text</option> <option value=\"varchar\">varchar</option> </select> </td> <td align=center><input type=\"text\" name=\"field_length[]\" size=\"5\"> </td> </tr>"; } //finish up the form $form_block .= " <tr> <td align=center colspan=3><input type =\"submit\" value=\"create table\"> </td> </tr> </table> </form>"; ?> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Create a database table: Step 2</title> </head> <body> <h1>defnie fields for <? echo "$_POST[table_name]"; ?> </h1> <? echo "$form_block"; ?> </body> </html> Problem is here 3) this form creates the tables and enteres them into the database. I am getting an error on line 37 "Parse error: syntax error, unexpected $end in /home/admin/domains/domaina.com.au/public_html/do_createtable.php on line 37" <? $db_name = "testDB"; $connection = @mysql_connect("localhost", "admin_user", "pass") or die(mysql_error()); $db = @mysql_select_db($db_name, $connection) or die(mysql_error()); $sql = "CREATE TABLE $_POST[table_name]("; for ($i = 0; $i < count($_POST[field_name]); $i++) { $sql .= $_POST[field_name][$i]." ".$_POST[field_type][$i]; if ($_POST[field_length][$i] !="") { $sql .=" (".$_POST[field_length][$i]."),"; } else { $sql .=","; } $sql = substr($sql, 0, -1); $sql .= ")"; $result = mysql_query($sql, $connection) or die(mysql_error()); if ($result) { $msg = "<p>" .$_POST[table_name]." has been created!</p>"; ?> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Create A Database Table: Step 3</title> </head> <body> <h1>Adding table to <? echo "$db_name"; ?>...</h1> <? echo "$msg"; ?> </body> </html>

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  • apc cache compression

    - by Massimo
    I want to store some key value. I see memcache api supports on-the-fly compression: memcache_set( obj, var, value, MEMCACHE_COMPRESSED, ttl ) What about apc ? I cannot find any doc. My goal, for example in php : function cache( $key, $value ) { $data = serialize( $value ); if ( strlen( $data ) >= 1024 ) $data = 'z' . gzcompress( $data, 1 ); else $data = '=' . $data; return apc_store( $key, $data, $ttl ); }

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  • TextBox Borders in Reporting Services (Report Builder 3.0)

    - by ChrisHDog
    I have a report that I am creating in Report Builder 3.0 that I appear unable to set the color value (or any value) on TextBoxes Borders. I have a list that I have added a text box to. I then click on the text box and select Text Box Properties ... then click Border, the value for Color: is Black. If I change this value to anything else and then click OK, then come back into Text Box properties it is set back to Black. Any idea what is going on here? Is this not the correct way to set a border color?

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  • Looping through selected values in multiple select combobox JQuery

    - by Roland
    I have the following scenario. I have a combobox where multiple selection is available. <select id="a" multiple="multiple"> <option value="">aaaa</option> <option value="">bbbb</option> <option value="">cccc</option> <option value="">dddd</option> </select> Now I also have a button <button type="button" id="display">Display</button> When a user clicks on this button, it should list all the selected values of the dropdown in an alert box My JS code looks as follows $(document).ready(function() { $('#display').click(function(){ alert($('#a').val()); }); }); Any pointers will be appreciated

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  • how to pass variables this in dynamic query

    - by Ranjana
    i using the dynamic query to pass the variables select a.TableName, COUNT(a.columnvalue) as '+'count'+' from Settings.ColumnMapping a where a.ColumnValue in ('+ @columnvalue +') and a.Value in (' + @value +') the @columnvalues = 'a','b','c' @value ='comm(,)','con(:)' how to pass this in dynamic query any idea???

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  • SQL select maximum from two time periods

    - by HamishC
    I have a query, Im trying to select the maximum value from the summer period (nov-april down here) but it only gives me values from nov-dec with this query. Any ideas why? SELECT TOP 10 Value, DateTime FROM history WHERE Tagname = @Tag AND ((DateTime >= @StartYear AND DateTime < @StartWinter) OR (DateTime >= @FinishWinter AND DateTime < @FinishYear)) ORDER BY Value DESC

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  • DefaultTableCellRenderer getTableCellRendererComponent never gets called

    - by Dean Schulze
    I need to render a java.util.Date in a JTable. I've implemented a custom renderer that extends DefaultTableCellRenderer (below). I've set it as the renderer for the column, but the method getTableCellRendererComponent() never gets called. This is a pretty common problem, but none of the solutions I've seen work. public class DateCellRenderer extends DefaultTableCellRenderer { String sdfStr = "yyyy-MM-dd HH:mm:ss.SSS"; SimpleDateFormat sdf = new SimpleDateFormat(sdfStr); public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column); if (value instanceof Date) { this.setText(sdf.format((Date) value)); } else logger.info("class: " + value.getClass().getCanonicalName()); return this; } } I've installed the custom renderer (and verified that it has been installed) like this: DateCellRenderer dcr = new DateCellRenderer(); table.getColumnModel().getColumn(2).setCellRenderer(dcr); I've also tried table.setDefaultRenderer( java.util.Date.class, dcr ); Any idea why the renderer gets installed, but never called?

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  • how to validate the form using jquery

    - by kumar
    I have this Fieldset values.. <fieldset class="clearfix" id="fieldset-exception"> <legend>Mass Edit Exception Information</legend> <div id="#error-msg-ID" class="ui-widget hide"> <div class="ui-state-highlight ui-corner-all"> <p><span style="float: left; margin-right: 0.3em;" class="ui-icon ui-icon-info"></span> <span></span></p> </div> </div> <div class="fiveper"> <label for="ExceptionStatus"> Status: <span> </span> </label> <label for="ResolutionCode"> Resolution: <span> <%=Html.DropDownListFor(model => model.Exception.ResolutionCode, new SelectList(Model.LookupCodes["C_EXCPT_RESL"], "Key", "Value"))%> </span> </label> <label for="ReasonCode"> Reason: <span><%=Html.DropDownListFor(model => model.Exception.ReasonCode, new SelectList(Model.LookupCodes["C_EXCPT_RSN"], "Key", "Value"))%></span> </label> <label for="ExceptionStatus"> Action Taken: <span><%=Html.DropDownListFor(model => model.Exception.ActionCode, new SelectList(Model.LookupCodes["C_EXCPT_ACT"], "Key", "Value"))%></span> </label> </div> <div class="fiveper"> <label for="FollowupDate"> Follow-up: <span><input type="text" id="exc-flwup" name="fdate" /></span> <%--<%=Html.EditorFor(model=>model.Exception.FollowupDate) %>--%> </label> <label for="IOL"> Inquiry #: <%=Html.TextBox("Inquiry", ViewData["inq"] ?? "")%> </label> <label>Comment</label> <span> <%=Html.TextArea("value", ViewData["Comnt"] ?? "")%> <%=Html.ValidationMessage("value")%> </span> </div> <br /> <br /> <div> <input type="submit" class="button" value="Save" /> </div> </fieldset> before submiting I need to do some time of validation..below validation not working for me is that right what I am doing here? These all fieds user is entering from UI.. thanks <script type="text/javascript"> $(document).ready(function() { $('#btnSelectAll').click(function() { $('#EditExceptions input[name=chk]').attr('checked', true); }); $('#btnCancel').click(function() { $('#EditExceptions input[name=chk]').attr('checked',false); }); function validate_excpt(formData, jqForm, options) { var form = jqForm[0]; **if (form.e_Exception_ResolutionCode.value && !form.e_Exception_ReasonCode.value) { alert('All Resolution Codes need a Reason Code.'); return false; }** } // post-submit callback function showResponse(responseText, statusText, xhr, $form) { if (responseText[0].substring(0, 16) != "System.Exception") { $('#error-msg-ID span:last').html('<strong>Update successful.</strong>'); $().ShowDialog('Success', 'Update successful'); } else { $('#error-msg-ID span:last').html('<strong>Update failed.</strong> ' + responseText[0].substring(0, 48)); $().ShowDialog('Failed', 'Update failed'); } $('#error-msg-ID').removeClass('hide'); $('#gui-stat-').html(responseText[1]); } $('#exc-').ajaxForm({ beforeSubmit: validate_excpt, success: showResponse, dataType: 'json' }); $('.button').button(); $("input[id^='exc-flwup']").datepicker({ duration: '', showTime: true, constrainInput: true, stepMinutes: 30, stepHours: 1, altTimeField: '', time24h: true, minDate: 0 }); $('#ui-timepicker-div').bgiframe(); }); </script>

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  • Creating a custom module for Orchard

    - by Moran Monovich
    I created a custom module using this guide from Orchard documentation, but for some reason I can't see the fields in the content type when I want to create a new one. this is my model: public class CustomerPartRecord : ContentPartRecord { public virtual string FirstName { get; set; } public virtual string LastName { get; set; } public virtual int PhoneNumber { get; set; } public virtual string Address { get; set; } public virtual string Profession { get; set; } public virtual string ProDescription { get; set; } public virtual int Hours { get; set; } } public class CustomerPart : ContentPart<CustomerPartRecord> { [Required(ErrorMessage="you must enter your first name")] [StringLength(200)] public string FirstName { get { return Record.FirstName; } set { Record.FirstName = value; } } [Required(ErrorMessage = "you must enter your last name")] [StringLength(200)] public string LastName { get { return Record.LastName; } set { Record.LastName = value; } } [Required(ErrorMessage = "you must enter your phone number")] [DataType(DataType.PhoneNumber)] public int PhoneNumber { get { return Record.PhoneNumber; } set { Record.PhoneNumber = value; } } [StringLength(200)] public string Address { get { return Record.Address; } set { Record.Address = value; } } [Required(ErrorMessage = "you must enter your profession")] [StringLength(200)] public string Profession { get { return Record.Profession; } set { Record.Profession = value; } } [StringLength(500)] public string ProDescription { get { return Record.ProDescription; } set { Record.ProDescription = value; } } [Required(ErrorMessage = "you must enter your hours")] public int Hours { get { return Record.Hours; } set { Record.Hours = value; } } } this is the Handler: class CustomerHandler : ContentHandler { public CustomerHandler(IRepository<CustomerPartRecord> repository) { Filters.Add(StorageFilter.For(repository)); } } the Driver: class CustomerDriver : ContentPartDriver<CustomerPart> { protected override DriverResult Display(CustomerPart part, string displayType, dynamic shapeHelper) { return ContentShape("Parts_Customer", () => shapeHelper.Parts_BankCustomer( FirstName: part.FirstName, LastName: part.LastName, PhoneNumber: part.PhoneNumber, Address: part.Address, Profession: part.Profession, ProDescription: part.ProDescription, Hours: part.Hours)); } //GET protected override DriverResult Editor(CustomerPart part, dynamic shapeHelper) { return ContentShape("Parts_Customer", () => shapeHelper.EditorTemplate( TemplateName:"Parts/Customer", Model: part, Prefix: Prefix)); } //POST protected override DriverResult Editor(CustomerPart part, IUpdateModel updater, dynamic shapeHelper) { updater.TryUpdateModel(part, Prefix, null, null); return Editor(part, shapeHelper); } the migration: public class Migrations : DataMigrationImpl { public int Create() { // Creating table CustomerPartRecord SchemaBuilder.CreateTable("CustomerPartRecord", table => table .ContentPartRecord() .Column("FirstName", DbType.String) .Column("LastName", DbType.String) .Column("PhoneNumber", DbType.Int32) .Column("Address", DbType.String) .Column("Profession", DbType.String) .Column("ProDescription", DbType.String) .Column("Hours", DbType.Int32) ); return 1; } public int UpdateFrom1() { ContentDefinitionManager.AlterPartDefinition("CustomerPart", builder => builder.Attachable()); return 2; } public int UpdateFrom2() { ContentDefinitionManager.AlterTypeDefinition("Customer", cfg => cfg .WithPart("CommonPart") .WithPart("RoutePart") .WithPart("BodyPart") .WithPart("CustomerPart") .WithPart("CommentsPart") .WithPart("TagsPart") .WithPart("LocalizationPart") .Creatable() .Indexed()); return 3; } } Can someone please tell me if I am missing something?

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  • Automatic Data sorting/ analysis in Excel

    - by hkf
    I have data in the form of four columns. The first three columns represent time, value1, value 2. The fourth column is binary, all 0's or 1's. Is there a way to tell excel to delete time, value1 and value 2, when the corresponding binary value in column four is 0? I know this is a lot easier in C++ or matlab, but for reasons beyond my control, I must do it in excel.

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  • perl - converting a date into a string

    - by Jason
    I need to convert a date to a string, the date is entered as 07/04/2010 and should then read July 4th 2010. It should also be able to be entered using singe digits instead of double (7 instead of 07, and it needs to add the 20 to the year if the user enters only /10) This is what I have so far - #!/usr/bin/perl use CGI qw(:standard); use strict; #declare variables my ($date, $month, $day, $year); my @months = ("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"); #assign input item to variable $date = param('Date'); #break date apart $date =~ /([0-9]{1,2})\/([0-9]{1,2})\/([0-9]{2,2}|20[0-9]{2,2})/; $month = $1; $day = $2; $year = $3; unless($year =~ /20[0-9]{2,2}/){ $year = "20".$year; } $date = $months[int($1)]." ".$day.", ".$year; #display date print "<HTML><HEAD><TITLE>The Date</TITLE></HEAD>\n"; print "<BODY>\n"; print "The date is: $date\n"; print "</BODY></HTML>\n"; However I keep getting errors Use of uninitialized value in pattern match (m//) at c08ex6.cgi line 14. Use of uninitialized value in pattern match (m//) at c08ex6.cgi line 18. Use of uninitialized value in concatenation (.) or string at c08ex6.cgi line 19. Use of uninitialized value in int at c08ex6.cgi line 21. Use of uninitialized value in concatenation (.) or string at c08ex6.cgi line 21.

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  • ASP.net looping through controls in a table

    - by c11ada
    hey all, i have a table which contains a bunch of dynamically created radio button lists, im trying to write code which will loop through each one of the radio button list and get the text value of the selected item. i have the following code foreach ( Control ctrl in Table1.Controls) { if (ctrl is RadioButtonList) { //get the text value of the selected radio button } } but i am stuck on how i can get the value of the selected item for that given control.

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  • Objective-C Passing a variable to another IBAction

    - by StuR
    This works fine: NSString *myVariable; - (IBAction) doFirstAction { myVariable = @"123456789"; } - (IBAction) doSecondAction { NSLog(@"%@",myVariable); } However, if I do this (substituting the @"123456789" for some code which returns the same value ie "123456789") I cannot access the value in doSecondAction. NSString *myVariable; - (IBAction) doFirstAction { myVariable = [imageNode getAttributeName:@"value"]; } - (IBAction) doSecondAction { NSLog(@"%@",myVariable); } Any clue as to why I cant access myVariable outside of doFirstAction?

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  • Best Functional Approach

    - by dbyrne
    I have some mutable scala code that I am trying to rewrite in a more functional style. It is a fairly intricate piece of code, so I am trying to refactor it in pieces. My first thought was this: def iterate(count:Int,d:MyComplexType) = { //Generate next value n //Process n causing some side effects return iterate(count - 1, n) } This didn't seem functional at all to me, since I still have side effects mixed throughout my code. My second thought was this: def generateStream(d:MyComplexType):Stream[MyComplexType] = { //Generate next value n return Stream.cons(n, generateStream(n)) } for (n <- generateStream(initialValue).take(2000000)) { //process n causing some side effects } This seemed like a better solution to me, because at least I've isolated my functional value-generation code from the mutable value-processing code. However, this is much less memory efficient because I am generating a large list that I don't really need to store. This leaves me with 3 choices: Write a tail-recursive function, bite the bullet and refactor the value-processing code Use a lazy list. This is not a memory sensitive app (although it is performance sensitive) Come up with a new approach. I guess what I really want is a lazily evaluated sequence where I can discard the values after I've processed them. Any suggestions?

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  • how to update mysql with inputs and checkboxes

    - by Ronnie Chester Lynwood
    hi. with this code: <? if (isset($_POST['onay'])) { foreach ($_POST['secilen'] as $zuha) { $olay = mysql_query("update mp3 SET aktif = '1' WHERE id = '$zuha'"); } if ($olay) { echo "islem tamam"; exit; } } ?> and with this form: (select * from mp3 aktif = '0') <form name="form" method="post"> <input readonly type="text" name="id" value="<?=$haciosman['id']?>" /> <input type="text" name="baslik" value="<?=$haciosman['baslik']?> <input type="checkbox" name="secilen[]" value="<?=$haciosman['id']?>"> <input type="submit" name="onay" value="Onayla" /> I can set "aktif to 1" for each row that i checked. but i want to update "baslik" too! how can i update each "baslik" with that php code?

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