[top] / zope / tales / interfaces / ITALESIterator
TAL Iterator provided by TALES
Values of this iterator are assigned to items in the repeat namespace.
For example, with a TAL statement like: tal:repeat="item items", an iterator will be assigned to "repeat/item". The iterator provides a number of handy methods useful in writing TAL loops.
The results are undefined of calling any of the methods except
length
before the first iteration.
There are no attributes or fields specified.
even()
Return whether the current position is even
index()
Return the position (starting with "0") within the iteration
end()
Return whether the current position is the last position
Letter()
Return the position (starting with "A") within the iteration
parity()
Return odd
or even
depending on the position's parity
Useful for assigning CSS class names to table rows.
number()
Return the position (starting with "1") within the iteration
next()
Advance to the next value in the iteration, if possible
Return a true value if it was possible to advance and return a false value otherwise.
Roman()
Return the position (starting with "I") within the iteration
item()
Return the item at the current position
roman()
Return the position (starting with "i") within the iteration
letter()
Return the position (starting with "a") within the iteration
length()
Return the length of the sequence
Note that this may fail if the TAL iterator was created on a Python iterator.
odd()
Return whether the current position is odd
start()
Return whether the current position is the first position
There are no specific adapters registered for this interface.
There are no extended adapters registered for this interface.
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