def test1():
i = itab([[1,2,3,4,5],[11,12,13,14,15]])
assert i[0] == [1,2,3,4,5]
assert i[0,0] == [[1]]
def even_idx(val, i) : return i%2 == 0
assert i[even_idx , : ] == [[1,2,3,4,5]]
assert i[ even_idx , '_%2 == 0'] == [[2,4]]
assert i[even_idx] == [[1,2,3,4,5]]
assert i[:, 1:3] == [[2,3], [12,13]]
from copy import deepcopy as D
i[:,:] = '_*3 '
assert i == [[3, 6, 9, 12, 15], [33, 36, 39, 42, 45]]
def even(x): return x %2 == 0
i[ even_idx , even] = '_/2'
assert i == [[3, 3, 9, 6, 15], [33, 36, 39, 42, 45]]
d = [[1,2,3], [11,12,13]]
i = itab(D(d))
i[0] = 'sum(_)'
assert i == ['sum(_)' , [11,12,13]]
i = itab(D(d))
i.each('sum(_)', selector = 1)
assert i == [[1,2,3] ,36]
i = itab(D(d))
i.each('sum(_)')
assert i == [6 ,36]
i = itab(D(d))
i.each( 'sum(_)' , selector = even_idx)
assert i == [6 ,[11,12,13]]
assert itab([])[1,1] == []
assert itab([[]])[1,2] == []
# i.each_row[0] this will assert
i = itab([[1,2,3,4,5],[11,12,13,14,15]])
assert i.each_col[:] == [[1, 11], [2, 12], [3, 13], [4, 14], [5, 15]]
assert i.each_col[even_idx ] == [[1, 11], [3, 13], [5, 15]]
assert i[:, even] ==[[2,4],[12,14]] # select all even elements
assert itab([[1,2,3]])[ : , :0] == [[]]
assert i.each_col[:] == [[1, 11], [2, 12], [3, 13], [4, 14], [5, 15]]
assert i.each_col[even_idx ] == [[1, 11], [3, 13], [5, 15]]
assert i[:, even] ==[[2,4],[12,14]] # select all even elements
assert itab([[1,2,3]])[ : , :0] == [[]]
test1()
from _align import String
_t1 = '''1 colon: 123
12 : what ? two : colons?
aaa
indented : part2 : part3 : part4 '''
_t2 = itab(_t1.split('\n') )
assert _t2 == _t2.copy().tab_untab(':', None)
assert String(_t1).align_at(':', 2) == '''1 colon : 123
12 : what ? two : colons?
aaa
indented : part2 : part3 : part4 '''
ss = '''
def each_cell(self, f): self[:,:] = f; return self
def copy (self): return copy.copy(self)
'''
res = String(ss).align_at('(').align_at(')').align_at('return')
expected = '''
def each_cell(self, f): self[:,:] = f; return self
def copy (self ): return copy.copy(self)