the return value is the converted value to or from base
"""
+# For the sake of eval'ing some code
+import math
+
# used for Computer numbers base definitions.
ALPHA_NUMERIC = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
>> makeBase(11, 16)
'b'
"""
- d, m = divmod(x, base)
- if not d:
- return table[m]
- return makeBase(d, base, table) + table[m]
+ div, mod = divmod(x, base)
+ if not div:
+ return table[mod]
+ return makeBase(div, base, table) + table[mod]
# roman numerals
roman_group = {
- 1: ('i','v'),
- 10: ('x','l'),
- 100: ('c','d'),
- 1000: ('m','A'),
- 10000: ('B','C'),
+ 1: ('i', 'v'),
+ 10: ('x', 'l'),
+ 100: ('c', 'd'),
+ 1000: ('m', 'A'),
+ 10000: ('B', 'C'),
}
# functions that convert Arabic digits to roman numerals
roman_value = {
- 0: lambda i,v,x: '',
- 1: lambda i,v,x: i,
- 2: lambda i,v,x: i+i,
- 3: lambda i,v,x: i+i+i,
- 4: lambda i,v,x: i+v,
- 5: lambda i,v,x: v,
- 6: lambda i,v,x: v+i,
- 7: lambda i,v,x: v+i+i,
- 8: lambda i,v,x: v+i+i+i,
- 9: lambda i,v,x: i+x,
+ 0: lambda i, v, x: '',
+ 1: lambda i, v, x: i,
+ 2: lambda i, v, x: i+i,
+ 3: lambda i, v, x: i+i+i,
+ 4: lambda i, v, x: i+v,
+ 5: lambda i, v, x: v,
+ 6: lambda i, v, x: v+i,
+ 7: lambda i, v, x: v+i+i,
+ 8: lambda i, v, x: v+i+i+i,
+ 9: lambda i, v, x: i+x,
}
'xv'
"""
if n < 0:
- raise NotImplemented("Value out of roman comprehension")
+ raise NotImplementedError("Value out of roman comprehension")
elif n == 0:
- ''
+ pass
elif n >= 4000:
- raise NotImplemented("Value Out of Range")
+ raise NotImplementedError("Value Out of Range")
base = 1
s = ''
while n > 0:
- i,v = roman_group[base]
- base = base * 10
- x,l = roman_group[base]
- digit = n % 10
- n = (n-digit)/10
- s = roman_value[digit](i,v,x) + s
+ i, v = roman_group[base]
+ base = base * 10
+ x, l = roman_group[base]
+ digit = n % 10
+ n = (n-digit)/10
+ s = roman_value[digit](i, v, x) + s
return s
15
"""
if len(s) == 0:
- return 0
+ return 0
elif rbase > 1000:
- return 0
+ return 0
i, v = roman_group[rbase]
x, l = roman_group[rbase*10]
class simple_multiplier(object):
- def to_base(self,value,multiplier):
+ def to_base(self, value, multiplier):
return value * (multiplier)
- def from_base(self,value,multiplier):
+ def from_base(self, value, multiplier):
if multiplier == 0:
return 0.0
else:
class simple_inverter(object):
- def to_base(self,value,multiplier):
+ def to_base(self, value, multiplier):
if value == 0:
return 0.0
else:
return (multiplier) / value
- def from_base(self,value,multiplier):
+ def from_base(self, value, multiplier):
if value == 0:
return 0.0
else:
class simple_gain_offset(object):
- def to_base(self,value,(gain,offset)):
+ def to_base(self, value, (gain, offset)):
return (value * (gain)) + offset
- def from_base(self,value,(gain,offset)):
+ def from_base(self, value, (gain, offset)):
if gain == 0:
return 0.0
else:
class simple_offset_gain(object):
- def to_base(self,value,(offset,gain)):
+ def to_base(self, value, (offset, gain)):
return (value + offset) * gain
- def from_base(self,value,(offset,gain)):
+ def from_base(self, value, (offset, gain)):
if gain == 0:
return 0.0
else:
class slope_offset(object):
''"convert using points on a graph''"
- def to_base(self,value,((low_in,high_in),(low_out,high_out))):
+ def to_base(self, value, ((low_in, high_in), (low_out, high_out))):
gain = (high_out-low_out)/(high_in-low_in)
offset = low_out - gain*low_in
return gain*value+offset
- def from_base(self,value,((low_out,high_out),(low_in,high_in))):
+ def from_base(self, value, ((low_out, high_out), (low_in, high_in))):
gain = (high_out-low_out)/(high_in-low_in)
offset = low_out - gain*low_in
return gain*value+offset
class double_slope_offset(object):
''"convert using points on a graph, graph split into two slopes''"
- def to_base(self,value,((low1_in,high1_in),(low1_out,high1_out),(low2_in,high2_in),(low2_out,high2_out))):
- if low1_in<=value<=high1_in:
+ def to_base(self, value, ((low1_in, high1_in), (low1_out, high1_out), (low2_in, high2_in), (low2_out, high2_out))):
+ if low1_in <= value <= high1_in:
gain = (high1_out-low1_out)/(high1_in-low1_in)
offset = low1_out - gain*low1_in
return gain*value+offset
- if low2_in<=value<=high2_in:
+ if low2_in <= value <= high2_in:
gain = (high2_out-low2_out)/(high2_in-low2_in)
offset = low2_out - gain*low2_in
return gain*value+offset
return 0.0
- def from_base(self,value,((low1_in,high1_in),(low1_out,high1_out),(low2_in,high2_in),(low2_out,high2_out))):
- if low1_out<=value<=high1_out:
+ def from_base(self, value, ((low1_in, high1_in), (low1_out, high1_out), (low2_in, high2_in), (low2_out, high2_out))):
+ if low1_out <= value <= high1_out:
gain = (high1_in-low1_in)/(high1_out-low1_out)
offset = low1_in - gain*low1_out
return gain*value+offset
- if low2_out<=value<=high2_out:
+ if low2_out <= value <= high2_out:
gain = (high2_in-low2_in)/(high2_out-low2_out)
offset = low2_in - gain*low2_out
return gain*value+offset
class base_converter(object):
- def to_base(self,value,base):
+ def to_base(self, value, base):
"""
Convert from any base to base 10 (decimal)
"""
result = long(result + long(long(ALPHA_NUMERIC.find(x))*(long(base)**long(position))))
return result
- def from_base(self,value,base):
+ def from_base(self, value, base):
"""
Convert from decimal to any base
"""
- return makeBase(value,base)
+ return makeBase(value, base)
class roman_numeral(object):
- def to_base(self,value,junk):
+ def to_base(self, value, junk):
"""
Convert from roman numeral to base 10 (decimal)
"""
- if value=="0":
+ if value == "0":
return 0L
else:
return fromroman(value)
- def from_base(self,value,junk):
+ def from_base(self, value, junk):
"""
Convert from decimal to roman numeral
"""
#value is assumed to be a string
#convert from a defined function to base
- def to_base(self,value,(to_base,from_base)):
+ def to_base(self, value, (to_base, from_base)):
exec "y="+to_base[:to_base.find('x')]+str(value)+to_base[to_base.find('x')+1:]
return y
- def from_base(self,value,(to_base,from_base)):
+ def from_base(self, value, (to_base, from_base)):
exec "y="+from_base[:from_base.find('x')]+str(value)+from_base[from_base.find('x')+1:]
return y
projects / gonvert / blobdiff