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Fix path numbers adjacent to exponents #454

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Fix path numbers adjacent to exponents #454

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1 change: 1 addition & 0 deletions cairosvg/helpers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,7 @@ def node_format(surface, node, reference=True):
def normalize(string):
"""Normalize a string corresponding to an array of various values."""
string = string.replace('E', 'e')
string = re.sub(r'(e[+-]?\d+)(?=\.)', r'\1 ', string)
string = re.sub('(?<!e)-', ' -', string)
string = re.sub('[ \n\r\t,]+', ' ', string)
string = re.sub(r'(\.[0-9-]+)(?=\.)', r'\1 ', string)
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11 changes: 11 additions & 0 deletions cairosvg/test_api.py
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,17 @@ def test_formats(format_name):
assert content.startswith(MAGIC_NUMBERS[format_name])


def test_path_number_after_exponent():
"""Render adjacent path numbers after an exponent."""
template = (
'<svg xmlns="http://www.w3.org/2000/svg" width="10" height="10">'
'<path d="{}" />'
'</svg>')
adjacent = template.format('M1 1 A2e2 2e2.0 0 0 5 5').encode()
separated = template.format('M1 1 A2e2 2e2 .0 0 0 5 5').encode()
assert svg2png(adjacent) == svg2png(separated)


def read_file(filename):
"""Shortcut to return the whole content of a file as a byte string."""
with open(filename, 'rb') as file_object:
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