64 lines
1.9 KiB
Python
64 lines
1.9 KiB
Python
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from builtin_filters import *
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from custom_filters import *
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def Triangle(size):
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"""takes int size. Generates a pascals triangle with that number of rows."""
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if size == 1:
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return [[1]]
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else:
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rows = Triangle(size-1)
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newRow = [1]
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for index in range(len(rows[-1])-1):
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newRow.append(rows[-1][index] + rows[-1][index+1])
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newRow.append(1)
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rows.append(newRow)
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return rows
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def BeautifyTri(triangle = Triangle(10)):
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"""takes triangle (default is normal Tri with length 10), returns middle-aligned tri."""
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rowStrList = []
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outStr = ""
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for row in triangle:
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rowStr = ""
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for num in row:
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rowStr += str(num) + " "
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rowStrList.append(rowStr[:len(rowStr)])
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for rowStr in rowStrList:
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while len(rowStr) < len(rowStrList[-1]):
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rowStr = " " + rowStr
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if len(rowStr) < len(rowStrList[-1]):
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rowStr += " "
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rowStr += "\n"
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outStr += rowStr
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return outStr
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def FilterTri(inTri = Triangle(10), filterFunc = Modulo2):
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"""takes triangle inTri and/or function filterFunc (defaults are Triangle(10) and Modulo2).
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Returns filtered Triangle."""
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failed = False
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if type(filterFunc) == str:
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try:
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filterFunc = eval(filterFunc)
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except NameError:
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failed = True
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if failed:
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print """This filter doesn't seem to exist :/ I imagine it would be really
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cool if it did... Maybe create it? ^^ But since it would be really
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boring if nothing happened, have a normal pascal's triangle."""
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return Triangle(10)
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outTri = []
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for row in inTri:
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outRow = []
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for num in row:
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try:
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outNum = filterFunc(num)
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outRow.append(outNum)
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except NameError:
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failed = True
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outTri.append(outRow)
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if failed:
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print """This filter doesn't seem to exist :/ I imagine it would be really
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cool if it did... Maybe create it? ^^ But since it would be really
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boring if nothing happened, have a normal pascal's triangle."""
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return Triangle(10)
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return outTri
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