contemplate where salmon spawn when they have a home

[quinkennedy]

given the following program:
hello a friend

creating the river:
hello--a--friend

and the input:
a

does the salmon spawn at the middle node 'a' or and the final node 'friend'

[quinkennedy]

from original documentation:
Springs are the homes of salmon. Salmon always swim to their home springs, springs with the same text as the salmon. If the Salmon has no home spring or cannot reach its home spring, it takes the path closest to the top of the program.

Once a salmon reaches a spring, a new, young, identical salmon is created.
Note: hello-1 and hello-2 show that this does not mean first spring

...To simplify things only `nodes', points where two rivers come together, are considered. The tokens are therefore interpreted as a tree.

(null):
Nothing. These tokens can only be created when spaces can not move the current position up the tree any more. They are also automatically created to balance the tree. Salmon will not enter these when swimming upstream unless they have a specific destination.

Each program is a set of rivers that flows into the watershed (the screen). Information is carried by water (a priority queue), which flows from the springs (constants) through the network of rivers (which represents a red-black binary tree)

[quinkennedy]

from 0.1 documentation:
For each upstream salmon, an in-order search of the river system is conducted to find a river node with the same name as the salmon. If there is such a node and the salmon is not prevented from moving towards it, the salmon moves towards that node. If there is no such node or if the salmon is prevented from moving towards that node, the salmon will attempt to move (in order) to each child of the current node. If the salmon cannot move to any child of the current node or if there are no children of the current node, the salmon will spawn at the current node.