Extract part of HTML in C/Objective-C - iphone

I need to extract the detail content of a website while preserve all formatting of the division. The section I wish to extract is:
...
<div class="detailContent"><p>
<P dir=ltr><STRONG>Hinweis</strong>: Auf ... </p>
</div>
...
My current solution is to use HTMLParser from libxml2 and xpath to find the nodes and walk through all the nodes to reconstruct this piece of HTML. This is a long an complicated code.
I' just wondering if there is an easier solution to extract part of HTML?
Thanks.

Simple Javascript solution: document.getElementsByClassName("detailContent")
Combine that with UIWebView's support for running Javascript and you might have a more concise solution.

Related

XForms: Possible to modify HTML element attribute ? (I'm using XSLTForms)

Does XForms have a mechanism for manipulating attributes of the resultant HTML?
I guess I mean emitting HTML dynamically and setting the attributes as part of that.
I know that using a xf:repeat - you can effectively emit HTML elements, but I can't work out if this would stretch to attributes?
I'm using XSLTForms as the implementation - so maybe this support hooks for Javascript to do this if there isn't a built-in way?
The reason to ask specifically - I would like to work with the audio element (and some other HTML5 elements).
Yes, it is named AVT for Attribute Value Template. As in XSLT, just wrap XPath expressions into curly braces like in <div class="proto{$myclass}">.
Thanks to the help from Alain Couthures - I was able to put together the following. Sharing in case others find it interesting.
<?xml-stylesheet href="xsltforms/xsltforms.xsl" type="text/xsl"?>
<html
xmlns="http://www.w3.org/1999/xhtml"
xmlns:xf="http://www.w3.org/2002/xforms">
<head>
<title>Podcast Player</title>
<xf:model>
<xf:instance xmlns="">
<data>
<url/>
</data>
</xf:instance>
<xf:instance id="feed" src="https://podcasts.files.bbci.co.uk/b05qqhqp.rss"/>
</xf:model>
<style><![CDATA[
* { font-family: arial; background-color:black; color: white }
]]></style>
</head>
<body>
<h1><xf:output ref="instance('feed')/channel/title"/></h1>
<blockquote><xf:output ref="instance('feed')/channel/description"/></blockquote>
<xf:select1 ref="url" appearance="full">
<xf:itemset nodeset="instance('feed')/channel/item">
<xf:label ref="title"/>
<xf:value ref="enclosure/#url"/>
</xf:itemset>
</xf:select1>
<audio src="{url}" controls="true"/>
</body>
</html>
The relevant bit to this post is the "audio" tag and in particular the "{url}" attribute template.
Here's a screenshot:
For those that wish to try this example, you'll need XSLTForms : https://en.wikibooks.org/wiki/XSLTForms , other XForms implementations are available.
Note: save the file with the extension '.xhtml' and place behind a webserver of your choice.
For instance using test HTTP servers: php, python etc.

Declarative support questions

I am trying to add an htmlview (which is using declarative support according to SAP's docs) to an index page that is also using declarative support. Using data-sap-ui-type="ui.MyView" makes me to ask two questions:
Is there any equivalent to sap.ui.localResources in declarative support?
data-ui-type is not adding the view.html suffix to the view that should be laoded. Is there a special pattern for MVC in declarative support or is there currently no way to implement it?
Kind regards,
Nico
find some basic samples here:
https://openui5.hana.ondemand.com/#docs/guide/MVC.html
First of all I believe that you always have to set sap.ui.localResources in code.
As you can see instanciating a HTMLView from an HTMLView goes like this:
<div data-sap-ui-type="sap.ui.core.mvc.HTMLView" id="MyHTMLView" data-view-name="example.mvc.test2"></div>
This will load example.mvc.test2.view.html and place it into your parent view.
Generally speaking the JS API translates into HTMLViews like this:
new sap.ui.AnyControl("myId", {
aLittleProperty: "10",
property: false,
press: functionInMyController,
morePress: a.static.myFunction,
defaultAggregation: [
new sap.ui.OtherControl("otherId1"),
new sap.ui.OtherControl("otherId2")
],
anotherAggregation: new sap.ui.OtherControl("otherId3")
}).addStyleClass("myClass");
<div data-sap-ui-type="sap.ui.AnyControl"
id="myId"
class="myClass"
data-a-little-property="10",
data-property="false"
data-press="functionInMyController"
data-more-press="a.static.myFunction">
<div data-sap-ui-type="sap.ui.OtherControl" id="otherId1"></div>
<div data-sap-ui-type="sap.ui.OtherControl" id="otherId2"></div>
<div data-sap-ui-aggregation="anotherAggregation">
<div data-sap-ui-type="sap.ui.OtherControl" id="otherId3"></div>
</div>
</div>
Note that:
The id and CSS classes are set with the regular HTML attributes
Property names translate from camelCase to lower-case separated with "-" (due to the fact that HTML is not case-sensitive)
No matter what type the property is you of course have to put it in quotes in HTML
Whatever you put directly inside a HTML-defined control is considered to belong into it's default aggregation
BR
Chris

Zend Frameword 2: How to set a html link (img) in a legend of the fieldset?

I used zf2 to design a website.
And the form is something like this:
$this->add(array
'options'=>array(
'label'=> 'title1'))
And finally it shows like this:
<form>
<fieldset>
<legend>title1</legend>
<label>****</label>
</fielset>
</form>
Now, I wanna add a link or an image after the title1, for example:
<form>
<fieldset>
<legend>title1<a href=''>link</a></legend>
<label>****</label>
</fielset>
</form>
How can I do this?
You can't. Well, at least not without overwriting the specific ViewHelper (probably formCollection()). In ZF2 all Labels are run through the Zend\View\Helper\EscapeHtml ViewHelper. Therefore using any sort of HTML inside Labels is not supported in any way.
While going by specification it may be allowed to use inline-elements inside the <legend> Element, semantically it looks a little different. The <legend> shall do nothing but to describe the contents of the <fieldset>.
Anyways, opinions aside, as i've mentioned, you'll have to overwrite the ViewHelper and then skip the use of the EscapeHtml ViewHelper, as it's done in this line of the formCollection() Code

In Tritium, how do I transform all <p> tags to <div> tags?

I’m working in the Moovweb SDK and am optimizing my personal desktop site for mobile.
How do I transform all my <p> tags to <div> tags? I really don't want to do it manually! Search and replace?? haha
You can use the name() function to change the name of an element. For example:
$("//p") {
name("div")
}
See it in action here: http://tester.tritium.io/bd1be4f2c187aed317351688e23f01127d26343a
Cheap way: Add p{margin:0} to your CSS, this will remove the only special styling of <p> tags making them look like <div>s.
This is only a visual effect, though. For instance, you're still not allowed to put a <form> inside a <p>, even with the above CSS. If that's what you're after, a simple search and replace will do:
Replace <p> with <div>
Replace <p␣ (left angle, p, space) with <div␣ (there's a space at the end of that one too)
Replace </p> with </div>
That should do it!

Meteor: How to return a Template from a Template Helper?

n00b here. I'm trying to "inject" an arbitrary template into another. But it seems like I'm doing it wrong :)
whatever.html:
<template name="parent">
{{child}}
</template>
<template name="child1">
I'm child 1
</template>
<template name="child2">
I'm child 2
</template>
whatever.coffee
x = "child1"
Template.parent.child = -> Template[x](#)
This will create "annotated HTML" (http://docs.meteor.com/#template_call) as the result, but the output of the {{child}} helper is html-encoded and thus is not interpreted.
I'm aware that I could use the Template.myTemplate.rendered event to add the template directly to the DOM using jQuery. But that seems like quite a hack imho. I'd rather have a helper generate that if possible.
What is the "right" way to do this? Is it possible to unescape the result in the template? Will reactivity work?
Thanks in advance!!1
Regards
A {{doubleBrace}} escapes HTML while a {{{tripleBrace}}} does not escape HTML and renders it as is.
EDIT: I mentioned it other way around.
From Handlebars docs - "Handlebars HTML-escapes values returned by a {{expression}}. If you don't want Handlebars to escape a value, use the 'triple-stash'."