diff options
Diffstat (limited to 'scss/cssdefs.py')
| -rw-r--r-- | scss/cssdefs.py | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/scss/cssdefs.py b/scss/cssdefs.py index 5d9b7eb..79be7b4 100644 --- a/scss/cssdefs.py +++ b/scss/cssdefs.py @@ -1,6 +1,7 @@ """Constants and functions defined by the CSS specification, not specific to Sass. """ +from fractions import Fraction from math import pi import re @@ -166,15 +167,15 @@ BASE_UNIT_CONVERSIONS = { # Lengths 'mm': (1, 'mm'), 'cm': (10, 'mm'), - 'in': (25.4, 'mm'), - 'px': (25.4 / 96, 'mm'), - 'pt': (25.4 / 72, 'mm'), - 'pc': (25.4 / 6, 'mm'), + 'in': (Fraction(254, 10), 'mm'), + 'px': (Fraction(254, 960), 'mm'), + 'pt': (Fraction(254, 720), 'mm'), + 'pc': (Fraction(254, 60), 'mm'), # Angles - 'deg': (1 / 360, 'turn'), - 'grad': (1 / 400, 'turn'), - 'rad': (pi / 2, 'turn'), + 'deg': (Fraction(1, 360), 'turn'), + 'grad': (Fraction(1, 400), 'turn'), + 'rad': (Fraction.from_float(pi / 2), 'turn'), 'turn': (1, 'turn'), # Times @@ -187,7 +188,7 @@ BASE_UNIT_CONVERSIONS = { # Resolutions 'dpi': (1, 'dpi'), - 'dpcm': (2.54, 'dpi'), + 'dpcm': (Fraction(254 / 100), 'dpi'), 'dppx': (96, 'dpi'), } @@ -252,7 +253,7 @@ def cancel_base_units(units, to_remove): # Copy the dict since we're about to mutate it to_remove = to_remove.copy() remaining_units = [] - total_factor = 1 + total_factor = Fraction(1) for unit in units: factor, base_unit = get_conversion_factor(unit) |