Provides the conversion type class AsBoolean, and simple matchers (extractor builders) to use them.
Either is great, perfect for what is needed, except for the indirection and the added memory and cpu costs thereof.
Provides evidence that two instances of two disctinct types are equivalent after a conversion.
badly named the boolean should indicate if it has any children
badly named the boolean should indicate if it has any children
Allows importing all scales.
Append to an appendable, always returns Done for a line, cont for everything else TODO - should it be a pair including the appendable?
Append to an appendable, always returns Done for a line, cont for everything else TODO - should it be a pair including the appendable?
Calls eval to return a T t'.
Calls eval to return a T t'. This T is then evaluated with the AsBoolean type class.
When evaluated to true (t',x) is returned. val Matcher = booleanMatcher( (x) => T ); val Matcher(t,x) = x
Calls eval to return a T t'.
Calls eval to return a T t'. This T is then evaluated with the AsBoolean type class.
When evaluated to true t' is returned. val Matcher = booleanMatcher( (x) => T ); val Matcher(t) = x
Calculates the value once and only once (using a lazy val), returning the result, use this approach for expensive calculations.
Calculates the value once and only once (using a lazy val), returning the result, use this approach for expensive calculations.
Collects the first Some
Collects the first Some
The collection pacakge provides the scales.utils.collection.Tree
When paths are not in the same root, they are compared based on the identity hash of the given roots.
When paths are not in the same root, they are compared based on the identity hash of the given roots. Of course this relies on that function having a decent vm implementation.
1 if path1 is before path2, -1 if path2 is before path1, 0 if they are the same and NotSameRoot+-1 if they are not in the same root
When paths are not in the same root, they are compared based on the identity hash of the given roots.
When paths are not in the same root, they are compared based on the identity hash of the given roots. Of course this relies on that function having a decent vm implementation. See http://www.w3.org/TR/2007/REC-xpath20-20070123/#dt-document-order, tree order must remain constant. Its also a pretty sensible approach for non xml trees.
1 if path1 is before path2, -1 if path2 is before path1, 0 if they are the same and NotSameRoot+-1 if they are not in the same root
Helper for comparePaths, will not evaluate position if the paths are equal
Helper for comparePaths, will not evaluate position if the paths are equal
Deepest last child
Deepest last child
A usable default of UTF8 NOT the vm's Charset.
A usable default of UTF8 NOT the vm's Charset.defaultCharset based on its locale, use vmDefaultCharset for that
drop while iteratee
drop while iteratee
Takes Input[E] converts via toMany to an EphemeralStream[A].
Takes Input[E] converts via toMany to an EphemeralStream[A]. This in turn is fed to the destination iteratee. The inputs can be 1 -> Many, Many -> 1, or indeed 1 -> 1.
The callers must take care of what kind of continnuation Iteratee is returned in a Done.
If the dest returns EOF, the toMany is in turn called with EOF for any needed resource control processing.
Enumeratee that converts input 1:1 String => Int, enumerator Iterator[String] but IterV[Int, Int]
Enumeratee that converts input 1:1 String => Int, enumerator Iterator[String] but IterV[Int, Int]
Are these two parameters (convertable to a C) equal for a given Equiv[C] instance
Are these two parameters (convertable to a C) equal for a given Equiv[C] instance
Calls the function param with the fed data and returns its result
Calls the function param with the fed data and returns its result
Extract the Some(value) from a Done or None if it was not Done.
Extract the Some(value) from a Done or None if it was not Done.
Extract the continuation from a Done
Extract the continuation from a Done
filter iteratee, greedily taking all content until eof
filter iteratee, greedily taking all content until eof
"find" iteratee, finds Some(first) or None
"find" iteratee, finds Some(first) or None
Stepwise fold, each element is evaluated but each one is returned as a result+resumable iter.
Stepwise fold, each element is evaluated but each one is returned as a result+resumable iter.
Folds over the Iteratee with Cont or Done and Empty, returning with Done and EOF.
Folds over the Iteratee with Cont or Done and Empty, returning with Done and EOF. If there is a ping pong on enumerator -> Cont -> enumerator then we'll of course get an infinite loop.
foldI returns a ResumableIter that performs a fold until a done, this folds over the enumerator to return a value.
combine with onDone to get through chunks of data.
Enumeratee that folds over the Iteratee with Cont or Done and Empty, returning with Done and EOF.
Enumeratee that folds over the Iteratee with Cont or Done and Empty, returning with Done and EOF.
Converts ResumableIters on Done via a fold, returning Done only when receiving EOF from the initIter.
NB - This can be thought of the reverse of toResumableIter but also accumulating.
Folds over positions within a single path, for example all given children.
Folds over positions within a single path, for example all given children. As such positions must be calculated.
Takes the first root, returning Right(NoSingleRoot) if any of the subsequent roots don't match.
folder retrieves the current path
Each iteration folds the resulting tree back into the path. As this function must maintain the Path it does not expose the new path root until the result.
As per the non accumalating version, folds over positions within a given tree but allows for an additional accumalation.
As per the non accumalating version, folds over positions within a given tree but allows for an additional accumalation.
The progress through the document is in reverse document order. This ensures that transformations can always be safely composed, e.g. a delete of a path won't stop changes below it. This, however, implies the developer must also handle any accumulation in "reverse".
gets the next following:: sibling in document order
gets the next following:: sibling in document order
Helper to identify dones
Helper to identify dones
Helper for done and eof
Helper for done and eof
Helper for done and empty
Helper for done and empty
Maps a given input to a function returning a Input[EphemeralStream].
Maps a given input to a function returning a Input[EphemeralStream]. If the Input is El it returns it, if EOF empty and continues on empty.
Makes a StringBuilder from an iterable using the builder parameter.
Makes a StringBuilder from an iterable using the builder parameter.
Navigates the path until the new position is reached, throws if either its a new root or the position is not reachable
Navigates the path until the new position is reached, throws if either its a new root or the position is not reachable
onDone, iterates over the list of iteratees applying the element, when the resulting list contains a Done then the list of Dones is returned.
onDone, iterates over the list of iteratees applying the element, when the resulting list contains a Done then the list of Dones is returned.
One can use tuples or pattern matching to discern which of the original lists iteratees have matched.
Due to the return type of this iteratee all items in the list must return the same type and must return both an A and an IterV with the same interface to continue with the next and maintain state.
In the case of EOF, an empty list is returned
Obtain the positions for the paths
Obtain the positions for the paths
positions with tuples (T, Path)
positions with tuples (T, Path)
gets the next preceding:: sibling equivalent in document order, unlike XPath preceding:: it does not exclude parents
gets the next preceding:: sibling equivalent in document order, unlike XPath preceding:: it does not exclude parents
Removes the value, returning either it or a new item (stops end code worrying about nulls etc.
Removes the value, returning either it or a new item (stops end code worrying about nulls etc..
Simple grabber of resources
Returns the root path for its input, uses zipUp to ensure changes are kept
Returns the root path for its input, uses zipUp to ensure changes are kept
keeps a running count of each element, probably not of much use unless combined but acts as a good poc for ResumableIter
keeps a running count of each element, probably not of much use unless combined but acts as a good poc for ResumableIter
Sorts according to position of each path item, descending or descending based on a depth first then rightwise order.
Sorts according to position of each path item, descending or descending based on a depth first then rightwise order.
Sorts according to position of each path item, descending or descending based on a depth first then rightwise order.
Sorts according to position of each path item, descending or descending based on a depth first then rightwise order.
sortPositions with a tuple T, Path
sortPositions with a tuple T, Path
sort with a tuple T, Path
sort with a tuple T, Path
Sums an iteratee up
Sums an iteratee up
Provides an instance of the Equal type class for positional Equality
Provides an instance of the Equal type class for positional Equality
Converts a normal IterV[E,A] to a ResumableIter.
Converts a normal IterV[E,A] to a ResumableIter.
Does so by folding over the iter once for an input and when its Done starting again with the original iter. This is close to restarting the iter on a new "stream", otherwise all attempts to keep the Cont will be made.
retrieves the value of a concurrent hashmap against a given key, creating if necessary.
retrieves the value of a concurrent hashmap against a given key, creating if necessary. Note it makes no gaurantee of once only semantics for the value generation
Converts the iteratee/enumerator/source triple into a Iterator
Converts the iteratee/enumerator/source triple into a Iterator
The scales.utils packages provide the basis functionality for scales.xml.
The Tree an Path collections that underpin the XML model, as well as the iteratee functionality are located in the relevant sub-packages.
The package object itself pulls in the main utility functions for tree, path and iteratee handling. Import the scales.utils.ScalesUtils object implicit members to provide the path & and | extension functions, the iteratorEnumerator and the +:+ lazy appender for scalaz.EphemeralStream.