Mercurial > repos > guerler > springsuite

annotate planemo/lib/python3.7/site-packages/soupsieve/util.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1
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1 """Utility."""
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2 from functools import wraps
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3 import warnings
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4 import re
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5
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6 DEBUG = 0x00001
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7
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8 RE_PATTERN_LINE_SPLIT = re.compile(r'(?:\r\n|(?!\r\n)[\n\r])|$')
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9
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10 LC_A = ord('a')
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11 LC_Z = ord('z')
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12 UC_A = ord('A')
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13 UC_Z = ord('Z')
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14
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15
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16 def lower(string):
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17 """Lower."""
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18
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19 new_string = []
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20 for c in string:
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21 o = ord(c)
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22 new_string.append(chr(o + 32) if UC_A <= o <= UC_Z else c)
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23 return ''.join(new_string)
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24
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25
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26 def upper(string): # pragma: no cover
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27 """Lower."""
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28
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29 new_string = []
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30 for c in string:
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31 o = ord(c)
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32 new_string.append(chr(o - 32) if LC_A <= o <= LC_Z else c)
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33 return ''.join(new_string)
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34
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35
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36 class SelectorSyntaxError(Exception):
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37 """Syntax error in a CSS selector."""
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38
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39 def __init__(self, msg, pattern=None, index=None):
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40 """Initialize."""
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41
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42 self.line = None
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43 self.col = None
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44 self.context = None
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45
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46 if pattern is not None and index is not None:
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47 # Format pattern to show line and column position
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48 self.context, self.line, self.col = get_pattern_context(pattern, index)
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49 msg = '{}\n line {}:\n{}'.format(msg, self.line, self.context)
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50
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51 super(SelectorSyntaxError, self).__init__(msg)
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52
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53
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54 def deprecated(message, stacklevel=2): # pragma: no cover
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55 """
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56 Raise a `DeprecationWarning` when wrapped function/method is called.
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57
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58 Borrowed from https://stackoverflow.com/a/48632082/866026
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59 """
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60
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61 def _decorator(func):
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62 @wraps(func)
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63 def _func(*args, **kwargs):
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64 warnings.warn(
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65 "'{}' is deprecated. {}".format(func.__name__, message),
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66 category=DeprecationWarning,
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67 stacklevel=stacklevel
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68 )
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69 return func(*args, **kwargs)
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70 return _func
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71 return _decorator
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72
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73
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74 def warn_deprecated(message, stacklevel=2): # pragma: no cover
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75 """Warn deprecated."""
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76
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77 warnings.warn(
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78 message,
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79 category=DeprecationWarning,
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80 stacklevel=stacklevel
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81 )
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82
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83
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84 def get_pattern_context(pattern, index):
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85 """Get the pattern context."""
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86
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87 last = 0
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88 current_line = 1
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89 col = 1
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90 text = []
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91 line = 1
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92
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93 # Split pattern by newline and handle the text before the newline
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94 for m in RE_PATTERN_LINE_SPLIT.finditer(pattern):
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95 linetext = pattern[last:m.start(0)]
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96 if not len(m.group(0)) and not len(text):
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97 indent = ''
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98 offset = -1
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99 col = index - last + 1
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100 elif last <= index < m.end(0):
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101 indent = '--> '
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102 offset = (-1 if index > m.start(0) else 0) + 3
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103 col = index - last + 1
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104 else:
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105 indent = ' '
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106 offset = None
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107 if len(text):
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108 # Regardless of whether we are presented with `\r\n`, `\r`, or `\n`,
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109 # we will render the output with just `\n`. We will still log the column
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110 # correctly though.
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111 text.append('\n')
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112 text.append('{}{}'.format(indent, linetext))
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113 if offset is not None:
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114 text.append('\n')
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115 text.append(' ' * (col + offset) + '^')
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116 line = current_line
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117
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118 current_line += 1
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119 last = m.end(0)
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120
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121 return ''.join(text), line, col