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1
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# String manipulation
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2
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3
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import re
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4
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5
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def to_unicode(str_):
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6
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if isinstance(str_, unicode): return str_
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7
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encodings = ['utf_8', 'latin_1']
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8
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for encoding in encodings:
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9
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try: return unicode(str_, encoding)
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10
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except UnicodeDecodeError, e: pass
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11
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raise AssertionError(encoding+' is not a catch-all encoding')
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12
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13
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def ensure_newl(str_): return str_.rstrip()+'\n'
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14
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15
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def is_multiline(str_):
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16
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newl_idx = str_.find('\n')
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17
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return newl_idx >= 0 and newl_idx != len(str_)-1 # has newline before end
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18
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19
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def remove_extra_newl(str_):
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20
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if is_multiline(str_): return str_
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21
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else: return str_.rstrip()
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22
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23
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def std_newl(str_): return str_.replace('\r\n', '\n').replace('\r', '\n')
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24
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25
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def cleanup(str_): return std_newl(str_.strip())
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26
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27
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def one_line(str_): return re.sub(r'\n *', r' ', cleanup(str_))
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