Functional hierarchical zipper, with navigation, editing, and enumeration. See Huet
Functional hierarchical zipper, with navigation, editing, and enumeration. See Huet
(append-child G__2190 G__2191)
Inserts the item as the rightmost child of the node at this loc, without moving
Inserts the item as the rightmost child of the node at this loc, without moving
(branch? G__2123)
Returns true if the node at loc is a branch
Returns true if the node at loc is a branch
(children G__2126)
Returns a seq of the children of node at loc, which must be a branch
Returns a seq of the children of node at loc, which must be a branch
(down G__2136)
Returns the loc of the leftmost child of the node at this loc, or nil if no children
Returns the loc of the leftmost child of the node at this loc, or nil if no children
(edit loc f & args)
Replaces the node at this loc with the value of (f node args)
Replaces the node at this loc with the value of (f node args)
(end? G__2205)
Returns true if loc represents the end of a depth-first walk
Returns true if loc represents the end of a depth-first walk
(insert-child G__2187 G__2188)
Inserts the item as the leftmost child of the node at this loc, without moving
Inserts the item as the leftmost child of the node at this loc, without moving
(insert-left G__2175 G__2176)
Inserts the item as the left sibling of the node at this loc, without moving
Inserts the item as the left sibling of the node at this loc, without moving
(insert-right G__2179 G__2180)
Inserts the item as the right sibling of the node at this loc, without moving
Inserts the item as the right sibling of the node at this loc, without moving
(left G__2161)
Returns the loc of the left sibling of the node at this loc, or nil
Returns the loc of the left sibling of the node at this loc, or nil
(leftmost G__2168)
Returns the loc of the leftmost sibling of the node at this loc, or self
Returns the loc of the leftmost sibling of the node at this loc, or self
(lefts G__2134)
Returns a seq of the left siblings of this loc
Returns a seq of the left siblings of this loc
(next G__2193)
Moves to the next loc in the hierarchy, depth-first. When reaching the end, returns a distinguished loc detectable via end?. If already at the end, stays there.
Moves to the next loc in the hierarchy, depth-first. When reaching the end, returns a distinguished loc detectable via end?. If already at the end, stays there.
(position loc)
Returns the ones-based [row col] of the start of the current node
Returns the ones-based [row col] of the start of the current node
(prev G__2200)
Moves to the previous loc in the hierarchy, depth-first. If already at the root, returns nil.
Moves to the previous loc in the hierarchy, depth-first. If already at the root, returns nil.
(remove G__2207)
Removes the node at loc, returning the loc that would have preceded it in a depth-first walk.
Removes the node at loc, returning the loc that would have preceded it in a depth-first walk.
(replace G__2183 G__2184)
Replaces the node at this loc, without moving
Replaces the node at this loc, without moving
(right G__2151)
Returns the loc of the right sibling of the node at this loc, or nil
Returns the loc of the right sibling of the node at this loc, or nil
(rightmost G__2158)
Returns the loc of the rightmost sibling of the node at this loc, or self
Returns the loc of the rightmost sibling of the node at this loc, or self
(root G__2148)
zips all the way up and returns the root node, reflecting any changes.
zips all the way up and returns the root node, reflecting any changes.
(up G__2145)
Returns the loc of the parent of the node at this loc, or nil if at the top
Returns the loc of the parent of the node at this loc, or nil if at the top
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