arsd.dom

This is an html DOM implementation, started with cloning what the browser offers in Javascript, but going well beyond it in convenience.

If you can do it in Javascript, you can probably do it with this module, and much more.

import arsd.dom;

void main() {
	auto document = new Document("<html><p>paragraph</p></html>");
	writeln(document.querySelector("p"));
	document.root.innerHTML = "<p>hey</p>";
	writeln(document);
}

BTW: this file optionally depends on arsd.characterencodings, to help it correctly read files from the internet. You should be able to get characterencodings.d from the same place you got this file.

If you want it to stand alone, just always use the Document.parseUtf8 function or the constructor that takes a string.

Members

Core functionality

These members provide core functionality. The members on these classes will provide most your direct interaction.

Core functionality Classes

Document class Document: The main document interface, including a html or xml parser.
DocumentFragment class DocumentFragment: .
Element class Element: This represents almost everything in the DOM and offers a lot of inspection and manipulation functions. Element, or its subclasses, are what makes the dom tree.
XmlDocument class XmlDocument: Specializes Document for handling generic XML. (always uses strict mode, uses xml mime type and file header)

Core functionality Functions

findComments Element[] findComments(Document document, string txt)
Element[] findComments(Element element, string txt): finds comments that match the given txt. Case insensitive, strips whitespace.
htmlEntitiesDecode string htmlEntitiesDecode(string data, bool strict): This takes a string of raw HTML and decodes the entities into a nice D utf-8 string. By default, it uses loose mode - it will try to return a useful string from garbage input too. Set the second parameter to true if you'd prefer it to strictly throw exceptions on garbage input.
htmlEntitiesEncode string htmlEntitiesEncode(string data, Appender!string output, bool encodeNonAscii): Given text, encode all html entities on it - &, <, >, and ". This function also encodes all 8 bit characters as entities, thus ensuring the resultant text will work even if your charset isn't set right. You can suppress with by setting encodeNonAscii = false
parseEntity dchar parseEntity(dchar[] entity): This helper function is used for decoding html entities. It has a hard-coded list of entities and characters.
require T require(Element e): You can use this to do an easy null check or a dynamic cast+null check on any element.
xmlEntitiesEncode string xmlEntitiesEncode(string data): An alias for htmlEntitiesEncode; it works for xml too

Core functionality Structs

Html struct Html: The html struct is used to differentiate between regular text nodes and html in certain functions
Selector struct Selector: Represents a parsed CSS selector. You never have to use this directly, but you can if you know it is going to be reused a lot to avoid a bit of repeat parsing.

Bonus functionality

These provide additional functionality for special use cases.

Bonus functionality Enums

NodeType enum NodeType: .

Bonus functionality Interfaces

FileResource interface FileResource: This might belong in another module, but it represents a file with a mime type and some data. Document implements this interface with type = text/html (see Document.contentType for more info) and data = document.toString, so you can return Documents anywhere web.d expects FileResources.

Implementations

These provide implementations of other functionality.

Implementations Classes

AspCode class AspCode: .
BangInstruction class BangInstruction: .
ElementNotFoundException class ElementNotFoundException: This is used when you are using one of the require variants of navigation, and no matching element can be found in the tree.
Form class Form: Represents a HTML form. This slightly specializes Element to add a few more convenience methods for adding and extracting form data.
HtmlComment class HtmlComment: .
Link class Link: Represents a HTML link. This provides some convenience methods for manipulating query strings, but otherwise is sthe same Element interface.
MarkupException class MarkupException: This is thrown on parse errors.
PhpCode class PhpCode: .
QuestionInstruction class QuestionInstruction: .
RawSource class RawSource: .
ServerSideCode class ServerSideCode
SpecialElement class SpecialElement
Table class Table: Represents a HTML table. Has some convenience methods for working with tabular data.
TableCell class TableCell: Represents anything that can be a table cell - <td> or <th> html.
TableRow class TableRow: Represents a table row element - a <tr>
TextNode class TextNode: .

Implementations Mixin templates

JavascriptStyleDispatch mixintemplate JavascriptStyleDispatch(): this puts in operators and opDispatch to handle string indexes and properties, forwarding to get and set functions.

Implementations Structs

AttributeSet struct AttributeSet: Proxy object for attributes which will replace the main opDispatch eventually
DataSet struct DataSet: A proxy object to do the Element class' dataset property. See Element.dataset for more info.
ElementCollection struct ElementCollection: A collection of elements which forwards methods to the children.
ElementStyle struct ElementStyle: for style, i want to be able to set it with a string like a plain attribute, but also be able to do properties Javascript style.
MaybeNullElement struct MaybeNullElement(SomeElementType): An option type that propagates null. See: Element.optionSelector

Other

Other Aliases

EventHandler alias EventHandler = void delegate(Element handlerAttachedTo, Event event): used for DOM events

Other Classes

CssStyle class CssStyle: This is probably not useful to you unless you're writing a browser or something like that. It represents a *computed* style, like what the browser gives you after applying stylesheets, inline styles, and html attributes. From here, you can start to make a layout engine for the box model and have a css aware browser.
ElementStream class ElementStream: This is the lazy range that walks the tree for you. It tries to go in the lexical order of the source: node, then children from first to last, each recursively.
Event class Event: This is a DOM event, like in javascript. Note that this library never fires events - it is only here for you to use if you want it.
Stack class Stack(T): This is kinda private; just a little utility container for use by the ElementStream class.
StyleSheet class StyleSheet: This probably isn't useful, unless you're writing a browser or something like that. You might want to look at arsd.html for css macro, nesting, etc., or just use standard css as text.

Other Functions

camelCase string camelCase(string a): Translates a css style property-name to a camel cased propertyName
defaultComputedStyleFactory CssStyle defaultComputedStyleFactory(Element e): This delegate is called if you call Element.computedStyle to attach an object to the element that holds stylesheet information. You can rebind it to something else to return a subclass if you want to hold more per-element extension data than the normal computed style object holds (e.g. layout info as well).
getElementsBySelectorParts Element[] getElementsBySelectorParts(Element start, SelectorPart[] parts, Element scopeElementNow): Parts of the CSS selector implementation
idToken sizediff_t idToken(string str, sizediff_t position): .
intFromHex int intFromHex(string hex): helper function for decoding html entities
lexSelector string[] lexSelector(string selstr): Parts of the CSS selector implementation
normalizeWhitespace string normalizeWhitespace(string text, bool stripLeadingAndTrailing): Normalizes the whitespace in the given text according to HTML rules.
parseSelector SelectorComponent parseSelector(string[] tokens, bool caseSensitiveTags): .
parseSelectorString SelectorComponent[] parseSelectorString(string selector, bool caseSensitiveTags): .
removeDuplicates Element[] removeDuplicates(Element[] input): .
unCamelCase string unCamelCase(string a): Converts a camel cased propertyName to a css style dashed property-name

Other Static variables

selectorTokens string[] selectorTokens;: .

Other Structs

FormFieldOptions struct FormFieldOptions: Undocumented in source.
SelectorComponent struct SelectorComponent: .
SelectorPart struct SelectorPart: Parts of the CSS selector implementation

Other Variables

computedStyleFactory CssStyle function(Element e) computedStyleFactory;: This delegate is called if you call Element.computedStyle to attach an object to the element that holds stylesheet information. You can rebind it to something else to return a subclass if you want to hold more per-element extension data than the normal computed style object holds (e.g. layout info as well).

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