mirror of
https://github.com/morpheus65535/bazarr
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137 lines
3.9 KiB
Python
137 lines
3.9 KiB
Python
"""
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Format a pretty string of a `SoupSieve` object for easy debugging.
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This won't necessarily support all types and such, and definitely
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not support custom outputs.
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It is mainly geared towards our types as the `SelectorList`
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object is a beast to look at without some indentation and newlines.
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The format and various output types is fairly known (though it
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hasn't been tested extensively to make sure we aren't missing corners).
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Example:
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```
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>>> import soupsieve as sv
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>>> sv.compile('this > that.class[name=value]').selectors.pretty()
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SelectorList(
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selectors=(
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Selector(
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tag=SelectorTag(
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name='that',
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prefix=None),
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ids=(),
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classes=(
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'class',
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),
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attributes=(
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SelectorAttribute(
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attribute='name',
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prefix='',
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pattern=re.compile(
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'^value$'),
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xml_type_pattern=None),
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),
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nth=(),
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selectors=(),
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relation=SelectorList(
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selectors=(
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Selector(
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tag=SelectorTag(
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name='this',
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prefix=None),
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ids=(),
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classes=(),
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attributes=(),
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nth=(),
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selectors=(),
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relation=SelectorList(
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selectors=(),
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is_not=False,
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is_html=False),
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rel_type='>',
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contains=(),
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lang=(),
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flags=0),
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),
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is_not=False,
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is_html=False),
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rel_type=None,
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contains=(),
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lang=(),
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flags=0),
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),
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is_not=False,
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is_html=False)
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```
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"""
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import re
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from typing import Any
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RE_CLASS = re.compile(r'(?i)[a-z_][_a-z\d\.]+\(')
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RE_PARAM = re.compile(r'(?i)[_a-z][_a-z\d]+=')
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RE_EMPTY = re.compile(r'\(\)|\[\]|\{\}')
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RE_LSTRT = re.compile(r'\[')
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RE_DSTRT = re.compile(r'\{')
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RE_TSTRT = re.compile(r'\(')
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RE_LEND = re.compile(r'\]')
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RE_DEND = re.compile(r'\}')
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RE_TEND = re.compile(r'\)')
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RE_INT = re.compile(r'\d+')
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RE_KWORD = re.compile(r'(?i)[_a-z][_a-z\d]+')
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RE_DQSTR = re.compile(r'"(?:\\.|[^"\\])*"')
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RE_SQSTR = re.compile(r"'(?:\\.|[^'\\])*'")
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RE_SEP = re.compile(r'\s*(,)\s*')
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RE_DSEP = re.compile(r'\s*(:)\s*')
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TOKENS = {
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'class': RE_CLASS,
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'param': RE_PARAM,
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'empty': RE_EMPTY,
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'lstrt': RE_LSTRT,
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'dstrt': RE_DSTRT,
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'tstrt': RE_TSTRT,
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'lend': RE_LEND,
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'dend': RE_DEND,
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'tend': RE_TEND,
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'sqstr': RE_SQSTR,
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'sep': RE_SEP,
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'dsep': RE_DSEP,
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'int': RE_INT,
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'kword': RE_KWORD,
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'dqstr': RE_DQSTR
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}
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def pretty(obj: Any) -> str: # pragma: no cover
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"""Make the object output string pretty."""
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sel = str(obj)
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index = 0
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end = len(sel) - 1
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indent = 0
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output = []
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while index <= end:
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m = None
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for k, v in TOKENS.items():
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m = v.match(sel, index)
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if m:
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name = k
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index = m.end(0)
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if name in ('class', 'lstrt', 'dstrt', 'tstrt'):
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indent += 4
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output.append('{}\n{}'.format(m.group(0), " " * indent))
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elif name in ('param', 'int', 'kword', 'sqstr', 'dqstr', 'empty'):
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output.append(m.group(0))
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elif name in ('lend', 'dend', 'tend'):
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indent -= 4
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output.append(m.group(0))
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elif name in ('sep',):
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output.append('{}\n{}'.format(m.group(1), " " * indent))
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elif name in ('dsep',):
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output.append('{} '.format(m.group(1)))
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break
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return ''.join(output)
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