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  • inplace replace entire html document

    - by james
    is it possible to in-place replace the entire html document? i tried jQuery("html").html("....") but style information does not survive. i'm trying to avoid using data uri because i do not want the generated document to be stored in the browsers history

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  • Programatically convert complex Excel file into HTML format

    - by shuby_rocks
    Hello all, I have a set of complex Excel files (with figures in it) that I want to show in a web browser. So I need to convert them into HTML page first. Since the excel files are very complex, I can not just parse them and generate a HTML table with HTML tags. The current manual solution that works fine is when I use Microsoft Excel software to save the spreadsheet as a HTML page. I want to automate this task in some way since I want to do it progrmatically through Java. Is their any existing solution or a way to do it? Thanks.

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  • asp.net - updatepannel can't read innerHTML?

    - by omega
    In my asp.net page, I have a jquery sortable accordian (in an update panel) I use so that clients can re-arrange items. Then to save it, users would click a button (thats created from jquery) and it would traverse through the accoridion in the DOM, and write the info to a asp control textbox. Then invoke the click function of a asp button control, which then reads that information and saves the data. But now I decided to simplify this step, and use html agility pack in c#, so users click the asp button control (inside an update panel), and then it would get the innerHTML of the accordian. But the problem is, the html it's getting is not the reflecting the changes a user can make to the accordion (i.e. re arranging it), it the same as when the DOM was ready on page load... But note that, using javascript to write the innerHTML to a textbox, then from the c# function, I can read the up to date html from the accordian. Does anyone know why this is happening and how to get the up to data html from the accordian in c#?

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  • Jquery - Dialogue not displaying correctly on IE6

    - by ryeguy
    I am trying to use bgiform but it seems to have no effect. The text in IE is pushed off of the screen of the dialogue box when its displayed. It works fine in FF. Any ideas? <!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=utf-8" /> <title>Zoleris</title> <link href="style.css" rel="stylesheet" type="text/css" /> <link href="jquery-ui-themeroller/theme/ui.theme.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="jquery-1.3.1.js"></script> <script type="text/javascript" src="bgiframe_2.1.1/jquery.bgiframe.js"></script> <script type="text/javascript" src="jquery-ui-personalized-1.5.3.js"></script> <script type="text/javascript"> $(document).ready( function() { $("#block").dialog({ bgiframe: true}); } ); </script> <style> #block { width: 150px; height: 70px; margin: 10px; } </style> </head> <body> <div id="block" title="title">blah</div> </body> </html>

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  • jQuery: Get <td>'s html only

    - by Poku
    Hey, i have this code. It returns all the td code including the td /td tags. I want it to only return the content/html of the td <td>Hey</td> should give me just Hey   jQuery("#ReportTable", html).each(function (index, tr) { arr[index] = jQuery("tbody tr", tr).map(function (index, td) { return jQuery(td).html(); }); });

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  • Display html text in Windows Forms

    - by n0vic3c0d3r
    I have a some of html strings that my application generates. Each html 'snippet' is stored as a collection of strings. I need to display some of these according to the user query. What is the usual way to display html stylized texts in Windows Forms.

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  • @Html.Label won't allow string concatination

    - by MrGrigg
    I'm building dynamic forms based on a partial view. My view inherits a model with a single property: CatalogName { get; set; }. I have tried this: @Html.Label(Model.CatalogName + "-ProductNumber", "Product Number") @Html.TextBox(Model.CatalogName + "-ProductNumber") The HTML renders like this though: <label for>Product Number</label> <input name="CatatalogName-ProductNumber" type="text" /> If I write my code like this: @Html.Label("ProductNumber-" + Model.CatalogName", "Product Number") It will render the way I expect <label for="ProductNumber-CatalogName">Product Number</label> Is this a bug with MVC? Are there any answers to why my concatenation won't work the way I want it in the label, but works fine with the TextBox?

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  • Changing PHP variable from an <a href=""> link

    - by aener
    I'm making a site using divs. I have one across the top with a row of links which I want to change what's in the main window. I would prefer to keep strictly to PHP and HTML and use a full page refresh as I am comfortable with them at current, rather than using an Ajax refresh as I don't have any knowledge of Ajax. I don't want to use iframes. I thought the best way to do this would be as follows: <div id="top"> <a href="news.html">News</a> </div> <div id="main"> <?php include($page); ?> </div> What I need is a way of changing the $page variable upon clicking the link. If this means changing the variable and then reloading the page then so be it. A command following the logic of: <a href="news.html" action="<?php $page="news.html"; ?>">News</a> would be ideal! I thought about using a form, but it seems there should be an easier way.

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  • IE 7 issues: Super simple page - TD height not taking effect

    - by Anthony
    This is my markup: <!DOCTYPE HTML> <html> <head> <title>Test title</title> <style type="text/css"> * { margin:0px auto; padding:0px; } html,body { height:100%; width:100%; } </style> </head> <body> <table cellspacing="0" cellpadding="0" style="width: 100%; height: 100%;"> <tr> <td style="height:55px;background:#CCC;" valign="top"> <h1>Header</h1> </td> </tr> <tr> <td valign="top"> Content @RenderBody() </td> </tr> <tr> <td style="height:85px;background:#CCC;" valign="bottom"> Footer </td> </tr> </table> </body> </html> Can anybody tell me why td height is not taking effect? This same markup works in IE9. Is it due to the HTML5 doctype?

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  • add .js file as source in html file from server

    - by zeeshan
    I have an HTML file on my server, and a Javascript file on the same server. I want it so that when I load the HTML file, it will the reference of .js file placed on the server. I tried this way: <html> <head> <script type="text/javascript src="...server side path...."></script> </head> </html> but it is not working. Can any one tell me how I can do this?

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  • Flash Builder 'building' html files...

    - by Frank
    I'm using Flash Builder 3 to edit my Flex app, but I noticed that every time I make a change on the .html files (index.template.html for example), even if it's not in the IDE but with another program, Flash Builder rebuilds the whole project. Is there anyway to stop this? Why would it need to rebuild the workspace everytime a html file changes? If it was too long it wouldn't bother me, but it takes a lot of time (more than 1 minute) every time. For your information the html file is 95 lines of 'code'. Thanks

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  • how to load local html file into uiwebview iphone

    - by madcoderz
    I'm trying to load a html file into my UIWebView but it won't work. Here's the stage: I have a folder called html_files in my project. Then I created a webView in interface builder and assigned an outlet to it in the viewController. This is the code I'm using to append the html file: -(void)viewDidLoad { NSString *htmlFile = [[NSBundle mainBundle] pathForResource:@"sample" ofType:@"html" inDirectory:@"html_files"]; NSData *htmlData = [NSData dataWithContentsOfFile:htmlFile]; [webView loadData:htmlData MIMEType:@"text/html" textEncodingName:@"UTF-8" baseURL:[NSURL URLWithString:@""]]; [super viewDidLoad]; } That won't work and the UIWebView is blank. I'd appreciate some help.

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  • String Array and ConvertTo-HTML

    - by Taylor Gibb
    I cant for the life of me get the contents of a string array (well its not strictly typed but all the items in the array are strings) to become a table, i am trying to use ConvertTo-HTML. For example: $arr = @("One", "Two") $arr | ConvertTo-HTML I have tried -As List, using fragments, even using InputObject, is it even possible ? Edit: i simply want to know if there is anyway to use an array as the input for the ConvertTo-HTML cmdlet, all it does is make a table with the length property of the strings.

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  • Adding a link using JQuery html() is not click-able on IE6

    - by Abs
    Hello all, I add html to a page using JQuery's html() function. This works great on most browsers except IE6. I can work round this by adding a click event etc but I want to fix the issue without extra tape! Any ideas why this doesn't work on IE6? $('#button_holder').html('<a href="#" onclick="run_activity_upload(); return false;" id="save_button">Upload</a>'); Thanks, Abs

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  • jQuery .html() vs .text() produce different result in .hover() function

    - by Paddy
    I have a issue where in I am using the .hover() function. If I use .text() fuction to add the html (anchor tag) which I am dynamically creating, it works fine, both the functions are called as desired. But when I use the .html() function instead then the second fuction of .hover() is never been called. var i = 0; textItems = new Array(); ////I am putting the value into textItems using the jquery ajax call ////and i get its value from a .each() function. //.text() implementation $('#textArea-id').hover( function() { $('#textArea-id').text(textItems[i]); }, function() { //-->mouseout function is called here } ); //.html() implementation $('#textArea-id').hover( function() { $('#textArea-id').html(textItems[i]); }, function() { //-->mouseout function is never been called } );

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  • 100% height div inside 100% td

    - by Brizio
    Ok, so here is my problem.. and its buggin me for a while...  i need to set the following DIV 100% height inside this TD without any side-effects (by that i mean scrolling), because for some unknown reason, when i set it to 100% height, looks like IE 8 does some wrong calculations.. I tried a lot of combinations but no success.. transitional doctype is required... thanks in advance for any help! <!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"> <style> html, body { height:100%; margin:0px; padding:0px; } </style> <head> <body> <table style="height:100%" border="1"> <tr> <td>TOP</td> </tr> <tr style="height:100%"> <td style="height:100%"> <div style="border:1px dotted blue; height:100%">CONTENT</div> </td> </tr> </table> </body> </html>

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  • Weird CSS behavior... removing a 1px border makes <DIV> move about 20px

    - by John
    I have the following: CSS #pageBody { height: 500px; padding:0; margin:0; /*border: 1px solid #00ff00;*/ } #pageContent { height:460px; margin-left:35px; margin-right:35px; margin-top:30px; margin-bottom:30px; padding:0px 0 0 0; } HTML <div id="pageBody"> <div id="pageContent"> <p> blah blah blah </p> </div> </div> </div> If I uncomment the border line in pageBody, everything fits sweetly... I had the border on to verify things were as expected. But removing the border, pageBody drops down the page about 20px, while pageContent does not appear to move at all. Now this is not the real page, but a subset. If nothing's obvious I can attempt to generate a working minimal sample, but I thought there might be an easy quick answer first. I see the same exact problem in Chrome and IE8, suggesting it's me not the browser. Any tips where to look? I wondered maybe the 1px border was some tipping point making the contents of a div just too big, but changing #pageContent height to e.g 400 makes no difference, other than clipping the bottom off that div.

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  • PHP mail with multiple attachments and message in HTML format [closed]

    - by Jason
    I am new to PHP, so please don't mind if my question is silly. I would to like to make a PHP to send email with numerous attachments and the message of the email will be in HTML format. <html> <body> <form action="mail.php" method="post"> <table> <tr> <td><label>Name:</label></td> <td><input type="text" name="name" /></td> </tr> <tr> <td><label>Your Email:</label></td> <td><input type="text" name="email" /></td> </tr> <tr> <td><label>Attachment:</label></td> <td><input type="file" name="Attach" /></td> </tr> <tr> <td><input type="submit" value="Submit" /></td> </tr> </table> </form> <script language="javascript"> $(document).ready(function() { $("form").submit(function(){ $.ajax({ type: "POST", url: 'mail.php', dataType: 'json', data: { name: $('#name').val(), email: $('#email').val(), Attach: $('#Attach').val(), }, success: function(json){ $(".error, .success").remove(); if (json['error']){ $("form").after(json['error']); } if (json['success']){ $("form").remove(); $(".leftColWrap").append(json['success']); } } }); return false; }); }); </script> </body> </html> This is my HTML for filing in the information. And below is the mail.php <?php session_cache_limiter('nocache'); header('Expires: ' . gmdate('r', 0)); header('Content-type: application/json'); $timeout = time()+60*60*24*30; setcookie(Form, date("F jS - g:i a"), $timeout); $name=$_POST['name']; $email=$_POST['email']; $to="[email protected]"; //*** Uniqid Session ***// $Sid = md5(uniqid(time())); $headers = ""; $headers .= "From: $email \n"; $headers .= "MIME-Version: 1.0\n"; $headers .= "Content-Type: multipart/mixed; boundary=\"".$Sid."\"\n\n"; $headers .= "This is a multi-part message in MIME format.\n"; $headers .= "--".$Sid."\n"; $headers .= "Content-type: text/html; charset=utf-8\n"; $headers .= "Content-Transfer-Encoding: 7bit\n\n"; //*** Attachment ***// if($_FILES["fileAttach"]["name"] != "") { $FilesName = $_FILES["fileAttach"]["name"]; $Content = chunk_split(base64_encode(file_get_contents($_FILES["fileAttach"]["tmp_name"]))); $headers .= "--".$Sid."\n"; $headers .= "Content-Type: application/octet-eam; name=\"".$FilesName."\"\n"; $headers .= "Content-Transfer-Encoding: base64\n"; $headers .= "Content-Disposition: attachment; filename=\"".$FilesName."\"\n\n"; $headers .= $Content."\n\n"; } $message_to=" <html><body> <table class='page-head' align='center' width='100%'> <tr> <td class='left'> <h1>ABC</h1></td> <td class='right' width='63'> <img src='http://xxx/images/logo.png' /></td> </tr> </table><br /><br /> $name ($email) has just sent you an e-mail. </body></html>"; $message_from="<html><body> <table class='page-head' align='center' width='100%'> <tr> <td class='left'> <h1>ABC</h1></td> <td class='right' width='63'> <img src='http://xxx/images/logo.png' /></td> </tr> </table><br /><br /> Thanks for sending the email. </body></html>"; if ($name == "" || $email == "") { $error = "<font color=\"red\">Please fill in all the required fields.</font>"; } elseif (isset($_COOKIE['Form'])) { $error = "You have already sent the email. Please try again later."; } else { mail($to,"A new email from: $name",$message_to,$headers); mail($email,"Thank you for send the email",$message_from,$headers); $success = "Emai sent successfully!"; } $json = array('error' => $error, 'success' => $success); print(json_encode($json)); ?> May someone give some advises on the code? Thanks a lot.

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  • CSS IE Hover Effect - Overlapping Elements, Display:Block, and Crashes

    - by Emtucifor
    In a fairly simple page, I have some text appear on hover over some links, like a tooltip. To start with here's my test page I'm working with: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <title>Tooltip Test Page</title> <style type="text/css"> html, body, form, table, tr, td, div, p, h1, h2, h3, h4, h5 { border:0; margin:0; padding:0; } body { margin:10px; } html, body, table { font-family:Arial, Helvetica, sans-serif; font-size:12px; } h1 { font-weight:bold; font-size:16px; } table {border-collapse:collapse;} td {padding:0 8px 0 0;} a.tooltip { z-index:24; text-decoration:none; cursor:default; position:relative; color:#000; display:block; width:100px; } a.tooltip span {display:none;} a.tooltip:hover, a.tooltip:active { z-index:25; color:; background:; /* the color and background actually don't matter for their values, it's just that these have to change for IE to apply this style properly. Leaving out the color or the background makes this fail in different ways. */ } a.tooltip:hover span, a.tooltip:active span { display:block; position:absolute; color:black; background-color:#FFFFCC; border:1px solid black; padding:1px; text-align:left; top:0; left:0; margin-top:-1px; } td span.s5 {color:#ff0000} td span.s6 {color:#0000ff} </style> <script type="text/javascript"> function labelSubmit(label) { document.getElementById('o').value=label; document.BackAt.submit(); } </script> </head> <body> <h1>tooltip Test Page</h1> <table> <tbody> <tr> <td><span class="s6">&#x25a0;</span> Name 3</td> <td class="status"><a class="tooltip" href="" onclick="return false;">Status 6<span>Some very long tooltip text to demonstrate the problem by overlapping the cells below.</span></a></td> </tr> <tr> <td><span class="s6">&#x25a0;</span> Name 1</td> <td class="status"><a class="tooltip" href="" onclick="return false;">Status 6</a></td> </tr> <tr> <td><span class="s6">&#x25a0;</span> Name 2</td> <td class="status"><a class="tooltip" href="" onclick="return false;">Status 6<span>Some tooltip text</span></a></td> </tr> <tr> <td><span class="s6">&#x25a0;</span> Name 4</td> <td class="status"><a class="tooltip" href="" onclick="return false;">Status 6</a></td> </tr> <tr> <td><span class="s5">&#x25a0;</span> Name 5</td> <td class="status"><a class="tooltip" href="" onclick="return false;">Status 5<span>More Notes</span></a></td> </tr> <tr> <td><span class="s6">&#x25a0;</span> Name 6</td> <td class="status"><a class="tooltip" href="" onclick="return false;">Status 6<span>Yet more notes</span></a></td> </tr> </tbody> </table> </body> </html> The problem I'm experiencing is that text from other values shows through the tooltip text. Hover over the first row, second column to see the effect. There are a couple of things I'm trying to accomplish: Make the activation area for the hover wider, so hovering over some space to the right of "Status 6" calls up the tooltip (say, 100-150px total width of target). At first, when I was adding "display:block" to a.tooltip, IE was terminating on hover. I resolved that by removing width:14em from a.tooltip:hover. Styling the width of the hover event + display.block on the a element does BAD things. Change the width of the tooltip without changing the width of the column/parent element (so the tooltip can be wider than itso it takes up less vertical space). Options for making the tooltips change width with its contents up to a max width, at which point the lines wrap would be awesome, but probably impossible in IE. As soon as I put a width in place on a.tooltip, the portion of the tooltip that is above other rows than the hover source let text show through from those cells. Remove the width and you'll see that the text doesn't show through any more. The hover effect applies to the entire tooltip, so if the tooltip covers 3 rows, while moving the mouse downward, the next 2 rows won't activate because the cursor hasn't left the tooltip. Can the hover effect apply only to the initial element hovered over and not the tooltip itself so moving the mouse downward will show each tooltip in each row? It would be nice if the links could never be activated (they can't take the focus). I don't know if that's possible. Too bad IE doesn't support hover on any elements but links. Note: soon IE6 will be abandoned in favor of IE8. If it makes a big difference, then IE8 can be the target browser instead. Thanks for your help.

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  • SVG as CSS background for website navigation-bar

    - by Irfan Mir
    I drew a small (horizontal / in width) svg to be the background of my website's navigation. My website's navigation takes place a 100% of the browser's viewport and I want the svg image to fill that 100% space. So, using css I set the background of the navigation (.nav) to nav.svg but then I saw (whenI opened the html file in a browser) that the svg was not the full-width of the nav, but at the small width I drew it at. How can I get the SVG to stretch and fill the entire width of the navigation (100% of the page) ? Here is the code for the html file where the navigation is in: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Distributed Horizontal Menu</title> <meta name="generator" content="PSPad editor, www.pspad.com"> <style type="text/css"> *{ margin:0; padding:0; } .nav { margin:0; padding:0; min-width:42em; width:100%; height:47px; overflow:hidden; background:transparent url(nav.svg) no-repeat; text-align:justify; font:bold 88%/1.1 verdana; } .nav li { display:inline; list-style:none; } .nav li.last { margin-right:100%; } .nav li a { display:inline-block; padding:13px 4px 0; height:31px; color:#fff; vertical-align:middle; text-decoration:none; } .nav li a:hover { color:#ff6; background:#36c; } @media screen and (max-width:322px){ /* styling causing first break will go here*/ /* but in the meantime, a test */ body{ background:#ff0000; } } </style></head><body> <ul class="nav"> <!--[test to comment out random items] <li>&nbsp; <a href="#">netscape&nbsp;9</a></li> [the spacing should be distributed]--> <li>&nbsp; <a href="#">internet&nbsp;explorer&nbsp;6-8</a></li> <li>&nbsp; <a href="#">opera&nbsp;10</a></li> <li>&nbsp; <a href="#">firefox&nbsp;3</a></li> <li>&nbsp; <a href="#">safari&nbsp;4</a></li> <li class="last">&nbsp; <a href="#">chrome&nbsp;2</a> &nbsp; &nbsp;</li> </ul> </body></html> and Here is the code for the svg: <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="321.026px" height="44.398px" viewBox="39.487 196.864 321.026 44.398" enable-background="new 39.487 196.864 321.026 44.398" xml:space="preserve"> <linearGradient id="SVGID_1_" gradientUnits="userSpaceOnUse" x1="280" y1="316.8115" x2="280" y2="275.375" gradientTransform="matrix(1 0 0 1 -80 -77)"> <stop offset="0" style="stop-color:#5A4A6A"/> <stop offset="0.3532" style="stop-color:#605170"/> <stop offset="0.8531" style="stop-color:#726382"/> <stop offset="1" style="stop-color:#796A89"/> </linearGradient> <path fill="url(#SVGID_1_)" d="M360,238.721c0,1.121-0.812,2.029-1.812,2.029H41.813c-1.001,0-1.813-0.908-1.813-2.029v-39.316 c0-1.119,0.812-2.027,1.813-2.027h316.375c1.002,0,1.812,0.908,1.812,2.027V238.721z"/> <path opacity="0.1" fill="#FFFFFF" enable-background="new " d="M358.188,197.376H41.813c-1.001,0-1.813,0.908-1.813,2.028 v39.316c0,1.12,0.812,2.028,1.813,2.028h316.375c1,0,1.812-0.908,1.812-2.028v-39.316C360,198.284,359.189,197.376,358.188,197.376z M358.75,238.721c0,0.415-0.264,0.779-0.562,0.779H41.813c-0.3,0-0.563-0.363-0.563-0.779v-39.316c0-0.414,0.263-0.777,0.563-0.777 h316.375c0.301,0,0.562,0.363,0.562,0.777V238.721z"/> <path opacity="0.5" fill="#FFFFFF" enable-background="new " d="M358.188,197.376H41.813c-1.001,0-1.813,0.908-1.813,2.028v1.461 c0-1.12,0.812-2.028,1.813-2.028h316.375c1.002,0,1.812,0.908,1.812,2.028v-1.461C360,198.284,359.189,197.376,358.188,197.376z"/> <g id="seperators"> <line fill="none" stroke="#000000" stroke-width="1.0259" stroke-miterlimit="10" x1="104.5" y1="197.375" x2="104.5" y2="240.75"/> <line opacity="0.1" fill="none" stroke="#FFFFFF" stroke-width="1.0259" stroke-miterlimit="10" enable-background="new " x1="103.5" y1="197.375" x2="103.5" y2="240.75"/> <line opacity="0.1" fill="none" stroke="#FFFFFF" stroke-width="1.0259" stroke-miterlimit="10" enable-background="new " x1="105.5" y1="197.375" x2="105.5" y2="240.75"/> <line fill="none" stroke="#000000" stroke-width="1.0259" stroke-miterlimit="10" x1="167.5" y1="197.375" x2="167.5" y2="240.75"/> <line opacity="0.1" fill="none" stroke="#FFFFFF" stroke-width="1.0259" stroke-miterlimit="10" enable-background="new " x1="166.5" y1="197.375" x2="166.5" y2="240.75"/> <line opacity="0.1" fill="none" stroke="#FFFFFF" stroke-width="1.0259" stroke-miterlimit="10" enable-background="new " x1="168.5" y1="197.375" x2="168.5" y2="240.75"/> <line fill="none" stroke="#000000" stroke-width="1.0259" stroke-miterlimit="10" x1="231.5" y1="197.375" x2="231.5" y2="240.75"/> <line opacity="0.1" fill="none" stroke="#FFFFFF" stroke-width="1.0259" stroke-miterlimit="10" enable-background="new " x1="232.5" y1="197.375" x2="232.5" y2="240.75"/> <line opacity="0.1" fill="none" stroke="#FFFFFF" stroke-width="1.0259" stroke-miterlimit="10" enable-background="new " x1="230.5" y1="197.375" x2="230.5" y2="240.75"/> <line fill="none" stroke="#000000" stroke-width="1.0259" stroke-miterlimit="10" x1="295.5" y1="197.375" x2="295.5" y2="240.75"/> <line opacity="0.1" fill="none" stroke="#FFFFFF" stroke-width="1.0259" stroke-miterlimit="10" enable-background="new " x1="294.5" y1="197.375" x2="294.5" y2="240.75"/> <line opacity="0.1" fill="none" stroke="#FFFFFF" stroke-width="1.0259" stroke-miterlimit="10" enable-background="new " x1="296.5" y1="197.375" x2="296.5" y2="240.75"/> </g> <path fill="none" stroke="#000000" stroke-width="1.0259" stroke-miterlimit="10" d="M360,238.721c0,1.121-0.812,2.029-1.812,2.029 H41.813c-1.001,0-1.813-0.908-1.813-2.029v-39.316c0-1.119,0.812-2.027,1.813-2.027h316.375c1.002,0,1.812,0.908,1.812,2.027 V238.721z"/> </svg> I appreciate and welcome any and all comments, help, and suggestions. Thanks in Advance!

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  • Scala parser combinator runs out of memory

    - by user3217013
    I wrote the following parser in Scala using the parser combinators: import scala.util.parsing.combinator._ import scala.collection.Map import scala.io.StdIn object Keywords { val Define = "define" val True = "true" val False = "false" val If = "if" val Then = "then" val Else = "else" val Return = "return" val Pass = "pass" val Conj = ";" val OpenParen = "(" val CloseParen = ")" val OpenBrack = "{" val CloseBrack = "}" val Comma = "," val Plus = "+" val Minus = "-" val Times = "*" val Divide = "/" val Pow = "**" val And = "&&" val Or = "||" val Xor = "^^" val Not = "!" val Equals = "==" val NotEquals = "!=" val Assignment = "=" } //--------------------------------------------------------------------------------- sealed abstract class Op case object Plus extends Op case object Minus extends Op case object Times extends Op case object Divide extends Op case object Pow extends Op case object And extends Op case object Or extends Op case object Xor extends Op case object Not extends Op case object Equals extends Op case object NotEquals extends Op case object Assignment extends Op //--------------------------------------------------------------------------------- sealed abstract class Term case object TrueTerm extends Term case object FalseTerm extends Term case class FloatTerm(value : Float) extends Term case class StringTerm(value : String) extends Term case class Identifier(name : String) extends Term //--------------------------------------------------------------------------------- sealed abstract class Expression case class TermExp(term : Term) extends Expression case class UnaryOp(op : Op, exp : Expression) extends Expression case class BinaryOp(op : Op, left : Expression, right : Expression) extends Expression case class FuncApp(funcName : Term, args : List[Expression]) extends Expression //--------------------------------------------------------------------------------- sealed abstract class Statement case class ExpressionStatement(exp : Expression) extends Statement case class Pass() extends Statement case class Return(value : Expression) extends Statement case class AssignmentVar(variable : Term, exp : Expression) extends Statement case class IfThenElse(testBody : Expression, thenBody : Statement, elseBody : Statement) extends Statement case class Conjunction(left : Statement, right : Statement) extends Statement case class AssignmentFunc(functionName : Term, args : List[Term], body : Statement) extends Statement //--------------------------------------------------------------------------------- class myParser extends JavaTokenParsers { val keywordMap : Map[String, Op] = Map( Keywords.Plus -> Plus, Keywords.Minus -> Minus, Keywords.Times -> Times, Keywords.Divide -> Divide, Keywords.Pow -> Pow, Keywords.And -> And, Keywords.Or -> Or, Keywords.Xor -> Xor, Keywords.Not -> Not, Keywords.Equals -> Equals, Keywords.NotEquals -> NotEquals, Keywords.Assignment -> Assignment ) def floatTerm : Parser[Term] = decimalNumber ^^ { case x => FloatTerm( x.toFloat ) } def stringTerm : Parser[Term] = stringLiteral ^^ { case str => StringTerm(str) } def identifier : Parser[Term] = ident ^^ { case value => Identifier(value) } def boolTerm : Parser[Term] = (Keywords.True | Keywords.False) ^^ { case Keywords.True => TrueTerm case Keywords.False => FalseTerm } def simpleTerm : Parser[Expression] = (boolTerm | floatTerm | stringTerm) ^^ { case term => TermExp(term) } def argument = expression def arguments_aux : Parser[List[Expression]] = (argument <~ Keywords.Comma) ~ arguments ^^ { case arg ~ argList => arg :: argList } def arguments = arguments_aux | { argument ^^ { case arg => List(arg) } } def funcAppArgs : Parser[List[Expression]] = funcEmptyArgs | ( Keywords.OpenParen ~> arguments <~ Keywords.CloseParen ^^ { case args => args.foldRight(List[Expression]()) ( (a,b) => a :: b ) } ) def funcApp = identifier ~ funcAppArgs ^^ { case funcName ~ argList => FuncApp(funcName, argList) } def variableTerm : Parser[Expression] = identifier ^^ { case name => TermExp(name) } def atomic_expression = simpleTerm | funcApp | variableTerm def paren_expression : Parser[Expression] = Keywords.OpenParen ~> expression <~ Keywords.CloseParen def unary_operation : Parser[String] = Keywords.Not def unary_expression : Parser[Expression] = operation(0) ~ expression(0) ^^ { case op ~ exp => UnaryOp(keywordMap(op), exp) } def operation(precedence : Int) : Parser[String] = precedence match { case 0 => Keywords.Not case 1 => Keywords.Pow case 2 => Keywords.Times | Keywords.Divide | Keywords.And case 3 => Keywords.Plus | Keywords.Minus | Keywords.Or | Keywords.Xor case 4 => Keywords.Equals | Keywords.NotEquals case _ => throw new Exception("No operations with this precedence.") } def binary_expression(precedence : Int) : Parser[Expression] = precedence match { case 0 => throw new Exception("No operation with zero precedence.") case n => (expression (n-1)) ~ operation(n) ~ (expression (n)) ^^ { case left ~ op ~ right => BinaryOp(keywordMap(op), left, right) } } def expression(precedence : Int) : Parser[Expression] = precedence match { case 0 => unary_expression | paren_expression | atomic_expression case n => binary_expression(n) | expression(n-1) } def expression : Parser[Expression] = expression(4) def expressionStmt : Parser[Statement] = expression ^^ { case exp => ExpressionStatement(exp) } def assignment : Parser[Statement] = (identifier <~ Keywords.Assignment) ~ expression ^^ { case varName ~ exp => AssignmentVar(varName, exp) } def ifthen : Parser[Statement] = ((Keywords.If ~ Keywords.OpenParen) ~> expression <~ Keywords.CloseParen) ~ ((Keywords.Then ~ Keywords.OpenBrack) ~> statements <~ Keywords.CloseBrack) ^^ { case ifBody ~ thenBody => IfThenElse(ifBody, thenBody, Pass()) } def ifthenelse : Parser[Statement] = ((Keywords.If ~ Keywords.OpenParen) ~> expression <~ Keywords.CloseParen) ~ ((Keywords.Then ~ Keywords.OpenBrack) ~> statements <~ Keywords.CloseBrack) ~ ((Keywords.Else ~ Keywords.OpenBrack) ~> statements <~ Keywords.CloseBrack) ^^ { case ifBody ~ thenBody ~ elseBody => IfThenElse(ifBody, thenBody, elseBody) } def pass : Parser[Statement] = Keywords.Pass ^^^ { Pass() } def returnStmt : Parser[Statement] = Keywords.Return ~> expression ^^ { case exp => Return(exp) } def statement : Parser[Statement] = ((pass | returnStmt | assignment | expressionStmt) <~ Keywords.Conj) | ifthenelse | ifthen def statements_aux : Parser[Statement] = statement ~ statements ^^ { case st ~ sts => Conjunction(st, sts) } def statements : Parser[Statement] = statements_aux | statement def funcDefBody : Parser[Statement] = Keywords.OpenBrack ~> statements <~ Keywords.CloseBrack def funcEmptyArgs = Keywords.OpenParen ~ Keywords.CloseParen ^^^ { List() } def funcDefArgs : Parser[List[Term]] = funcEmptyArgs | Keywords.OpenParen ~> repsep(identifier, Keywords.Comma) <~ Keywords.CloseParen ^^ { case args => args.foldRight(List[Term]()) ( (a,b) => a :: b ) } def funcDef : Parser[Statement] = (Keywords.Define ~> identifier) ~ funcDefArgs ~ funcDefBody ^^ { case funcName ~ funcArgs ~ body => AssignmentFunc(funcName, funcArgs, body) } def funcDefAndStatement : Parser[Statement] = funcDef | statement def funcDefAndStatements_aux : Parser[Statement] = funcDefAndStatement ~ funcDefAndStatements ^^ { case stmt ~ stmts => Conjunction(stmt, stmts) } def funcDefAndStatements : Parser[Statement] = funcDefAndStatements_aux | funcDefAndStatement def parseProgram : Parser[Statement] = funcDefAndStatements def eval(input : String) = { parseAll(parseProgram, input) match { case Success(result, _) => result case Failure(m, _) => println(m) case _ => println("") } } } object Parser { def main(args : Array[String]) { val x : myParser = new myParser() println(args(0)) val lines = scala.io.Source.fromFile(args(0)).mkString println(x.eval(lines)) } } The problem is, when I run the parser on the following example it works fine: define foo(a) { if (!h(IM) && a) then { return 0; } if (a() && !h()) then { return 0; } } But when I add threes characters in the first if statement, it runs out of memory. This is absolutely blowing my mind. Can anyone help? (I suspect it has to do with repsep, but I am not sure.) define foo(a) { if (!h(IM) && a(1)) then { return 0; } if (a() && !h()) then { return 0; } } EDIT: Any constructive comments about my Scala style is also appreciated.

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