Haquery

Haquery is jQuery for Haskell.

Known problems:

Some selectors need explicit * to work: ":eq(0)" does not work but "*:eq(0)" does, same with "> b": "* > b", etc.

Types

data Attrs

Instances

Eq Attrs

Methods

(==) :: Attrs -> Attrs -> Bool

(/=) :: Attrs -> Attrs -> Bool

Show Attrs

Methods

showsPrec :: Int -> Attrs -> ShowS

show :: Attrs -> String

showList :: [Attrs] -> ShowS

data Tag

Constructors

Doctype [Int] Text

Text [Int] Text

Tag [Int] Text Attrs [Child]

Instances

Eq Tag

Methods

(==) :: Tag -> Tag -> Bool

(/=) :: Tag -> Tag -> Bool

Show Tag

Show is used for pretty printing, for actual rendering/serialization use render.

Methods

showsPrec :: Int -> Tag -> ShowS

show :: Tag -> String

showList :: [Tag] -> ShowS

type Child = Tag

Rendering

render :: Tag -> Text

Render tag to text.

Tag creation

tag :: Text -> [(Text, Text)] -> [Tag] -> Tag

Create any tag.

doctype :: Text -> Tag

html :: [(Text, Text)] -> [Tag] -> Tag

head' :: [(Text, Text)] -> [Tag] -> Tag

body :: [(Text, Text)] -> [Tag] -> Tag

div' :: [(Text, Text)] -> [Tag] -> Tag

text :: Text -> Tag

form :: [(Text, Text)] -> [Tag] -> Tag

input :: [(Text, Text)] -> [Tag] -> Tag

article :: [(Text, Text)] -> [Tag] -> Tag

a :: [(Text, Text)] -> [Tag] -> Tag

title :: [(Text, Text)] -> [Tag] -> Tag

link :: [(Text, Text)] -> [Tag] -> Tag

script :: [(Text, Text)] -> [Tag] -> Tag

cat :: Text -> Text -> (Text, Text)

Create any attribute.

(-.) :: Text -> Text -> (Text, Text) infix 0

Same as cat

id' :: Text -> (Text, Text)

class' :: Text -> (Text, Text)

src :: Text -> (Text, Text)

href :: Text -> (Text, Text)

type' :: Text -> (Text, Text)

style :: Text -> (Text, Text)

Nested tag functions

alter :: Text -> (Tag -> Tag) -> Tag -> Tag

Apply function on elements matching the selector.

remove :: Text -> Tag -> Tag

Remove tags matching the selector. Does not remove the provided tag itself.

select :: Text -> Tag -> [Tag]

Returns tags matching the selector. Obiously not too useful if you want to alter the given elements, because of Haskell's purity. See alter and remove instead.

Single tag functions

attrs :: Tag -> Attrs

Returns the attributes of a tag.

attr :: Text -> Tag -> Maybe Text

Returns an attribute of a tag specified by the first argument.

children :: Tag -> [Child]

Returns the (direct) children of a tag.

name :: Tag -> Text

Returns the name of a tag.

append :: Tag -> Tag -> Tag

Insert the first argument as the last child of the second.

prepend :: Tag -> Tag -> Tag

Inserts the first argument as the first child of the second.

Manipulation

addClass :: Text -> Tag -> Tag

Adds the class specified by the first argument to the tag.

removeClass :: Text -> Tag -> Tag

hasClass :: Text -> Tag -> Bool

Returns true if the tag already has the given class.

toggleClass :: Text -> Tag -> Tag

Parse HTML

parseHtml :: Text -> [Tag]

Turns text into tags.

Exported for testing purposes only

matches :: Text -> Tag -> Bool

Just for quick and ugly testing. Tests if a (top level) tag satisfies a given selector

parseSelector :: Text -> Selector

example :: Tag