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expansion.py
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expansion.py
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"""
Functions to uncompact details inside field values.
Notes
-----
:func:`re.compile` operations are inside of expand functions:
1. readability
2. module-level function bytecode is cached in python
3. the last used compiled regexes are cached
"""
import re
import zhon.hanzi
import zhon.pinyin
from unihan_etl.constants import SPACE_DELIMITED_FIELDS
#: diacritics from kHanyuPinlu
N_DIACRITICS = 'ńňǹ'
def expand_kDefinition(value):
return [c.strip() for c in value.split(';')]
def expand_kMandarin(value):
cn = value[0]
if len(value) == 1:
tw = value[0]
else:
tw = value[1]
return {"zh-Hans": cn, "zh-Hant": tw}
def expand_kTotalStrokes(value):
cn = value[0]
if len(value) == 1:
tw = value[0]
else:
tw = value[1]
return {"zh-Hans": int(cn), "zh-Hant": int(tw)}
def expand_kHanYu(value):
pattern = re.compile(
r"""
(?P<volume>[1-8])
(?P<page>[0-9]{4})\.
(?P<character>[0-3][0-9])
(?P<virtual>[0-3])
""",
re.X,
)
for i, v in enumerate(value):
m = pattern.match(v).groupdict()
value[i] = {
"volume": int(m['volume']),
"page": int(m['page']),
"character": int(m['character']),
"virtual": int(m['virtual']),
}
return value
def expand_kIRGHanyuDaZidian(value):
pattern = re.compile(
r"""
(?P<volume>[1-8])
(?P<page>[0-9]{4})\.
(?P<character>[0-3][0-9])
(?P<virtual>[01])
""",
re.X,
)
for i, v in enumerate(value):
m = pattern.match(v).groupdict()
value[i] = {
"volume": int(m['volume']),
"page": int(m['page']),
"character": int(m['character']),
"virtual": int(m['virtual']),
}
return value
def expand_kHanyuPinyin(value):
location_pattern = re.compile(
r"""
(?P<volume>[1-8])
(?P<page>[0-9]{4})\.
(?P<character>[0-3][0-9])
(?P<virtual>[0-3])
""",
re.X,
)
for i, v in enumerate(value):
v = [s.split(',') for s in v.split(':')]
value[i] = {"locations": v[0], "readings": v[1]}
for n, loc in enumerate(value[i]['locations']):
m = location_pattern.match(loc).groupdict()
value[i]['locations'][n] = {
"volume": int(m['volume']),
"page": int(m['page']),
"character": int(m['character']),
"virtual": int(m['virtual']),
}
return value
def expand_kXHC1983(value):
pattern = re.compile(
r"""
(?P<page>[0-9]{4})\.
(?P<character>[0-9]{2})
(?P<entry>[0-9]{1})
(?P<substituted>\*?)
""",
re.X,
)
for i, v in enumerate(value):
vals = v.split(':')
value[i] = {"locations": vals[0].split(','), "reading": vals[1]}
for n, loc in enumerate(value[i]['locations']):
m = pattern.match(loc).groupdict()
value[i]['locations'][n] = {
"page": int(m['page']),
"character": int(m['character']),
"entry": int(m['entry']),
"substituted": m['substituted'] == "*",
}
return value
def expand_kCheungBauer(value):
pattern = re.compile(
r"""
(?P<radical>[0-9]{3})\/(?P<strokes>[0-9]{2});
(?P<cangjie>[A-Z]*);
(?P<readings>[a-z1-6\[\]\/,]+)
""",
re.X,
)
for i, v in enumerate(value):
m = pattern.match(v).groupdict()
value[i] = {
"radical": int(m['radical']),
"strokes": int(m['strokes']),
"cangjie": m['cangjie'] or None,
"readings": m['readings'].split(','),
}
return value
def expand_kRSAdobe_Japan1_6(value):
pattern = re.compile(
r"""
(?P<type>[CV])\+
(?P<cid>[0-9]{1,5})\+
(?P<radical>[1-9][0-9]{0,2})\.
(?P<strokes>[1-9][0-9]?)\.
(?P<strokes_residue>[0-9]{1,2})
""",
re.X,
)
for i, v in enumerate(value):
m = pattern.match(v).groupdict()
value[i] = {
"type": m['type'],
"cid": int(m['cid']),
"radical": int(m['radical']),
"strokes": int(m['strokes']),
"strokes-residue": int(m['strokes_residue']),
}
return value
def expand_kCihaiT(value):
pattern = re.compile(
r"""
(?P<page>[1-9][0-9]{0,3})\.
(?P<row>[0-9]{1})
(?P<character>[0-9]{2})
""",
re.X,
)
for i, v in enumerate(value):
m = pattern.match(v).groupdict()
value[i] = {
"page": int(m['page']),
"row": int(m['row']),
"character": int(m['character']),
}
return value
def expand_kIICore(value):
for i, v in enumerate(value):
value[i] = {"priority": v[0], "sources": list(v[1:])}
return value
def expand_kDaeJaweon(value):
pattern = re.compile(
r"""
(?P<page>[0-9]{4})\.
(?P<character>[0-9]{2})
(?P<virtual>[01])
""",
re.X,
)
m = pattern.match(value).groupdict()
value = {
"page": int(m['page']),
"character": int(m['character']),
"virtual": int(m['virtual']),
}
return value
def expand_kIRGKangXi(value):
for i, v in enumerate(value):
value[i] = expand_kDaeJaweon(v)
return value
def expand_kIRGDaeJaweon(value):
for i, v in enumerate(value):
value[i] = expand_kDaeJaweon(v)
return value
def expand_kFenn(value):
pattern = re.compile(
"""
(?P<phonetic>[0-9]+a?)
(?P<frequency>[A-KP*])
""",
re.X,
)
for i, v in enumerate(value):
m = pattern.match(v).groupdict(v)
value[i] = {"phonetic": m['phonetic'], "frequency": m['frequency']}
return value
def expand_kHanyuPinlu(value):
pattern = re.compile(
r"""
(?P<phonetic>[a-z({}{}]+)
\((?P<frequency>[0-9]+)\)
""".format(
zhon.pinyin.lowercase, N_DIACRITICS
),
re.X,
)
for i, v in enumerate(value):
m = pattern.match(v).groupdict()
value[i] = {"phonetic": m['phonetic'], "frequency": int(m['frequency'])}
return value
def expand_kHDZRadBreak(value):
rad, loc = value.split(':')
location_pattern = re.compile(
r"""
(?P<volume>[1-8])
(?P<page>[0-9]{4})\.
(?P<character>[0-3][0-9])
(?P<virtual>[01])
""",
re.X,
)
lmatches = location_pattern.match(loc).groupdict()
location = {
"volume": int(lmatches['volume']),
"page": int(lmatches['page']),
"character": int(lmatches['character']),
"virtual": int(lmatches['virtual']),
}
pattern = re.compile(
r"""
(?P<radical>[{}]+)
\[(?P<ucn>U\+2F[0-9A-D][0-9A-F])\]
""".format(
zhon.hanzi.radicals
),
re.X,
)
m = pattern.match(rad).groupdict()
return {"radical": m['radical'], "ucn": m['ucn'], "location": location}
def expand_kSBGY(value):
for i, v in enumerate(value):
vals = v.split('.')
value[i] = {"page": int(vals[0]), "character": int(vals[1])}
return value
def _expand_kRSGeneric(value):
pattern = re.compile(
r"""
(?P<radical>[1-9][0-9]{0,2})
(?P<simplified>\'?)\.
(?P<strokes>-?[0-9]{1,2})
""",
re.X,
)
for i, v in enumerate(value):
m = pattern.match(v).groupdict()
value[i] = {
"radical": int(m['radical']),
"strokes": int(m['strokes']),
"simplified": m['simplified'] == "'",
}
return value
expand_kRSUnicode = _expand_kRSGeneric
expand_kRSJapanese = _expand_kRSGeneric
expand_kRSKangXi = _expand_kRSGeneric
expand_kRSKanWa = _expand_kRSGeneric
expand_kRSKorean = _expand_kRSGeneric
def _expand_kIRG_GenericSource(value):
v = value.split('-')
return {"source": v[0], "location": v[1] if len(v) > 1 else None}
expand_kIRG_GSource = _expand_kIRG_GenericSource
expand_kIRG_HSource = _expand_kIRG_GenericSource
expand_kIRG_JSource = _expand_kIRG_GenericSource
expand_kIRG_KPSource = _expand_kIRG_GenericSource
expand_kIRG_KSource = _expand_kIRG_GenericSource
expand_kIRG_MSource = _expand_kIRG_GenericSource
expand_kIRG_TSource = _expand_kIRG_GenericSource
expand_kIRG_USource = _expand_kIRG_GenericSource
expand_kIRG_VSource = _expand_kIRG_GenericSource
def expand_kGSR(value):
pattern = re.compile(
r"""
(?P<set>[0-9]{4})
(?P<letter>[a-vx-z])
(?P<apostrophe>\')?
""",
re.X,
)
for i, v in enumerate(value):
m = pattern.match(v).groupdict()
value[i] = {
"set": int(m['set']),
"letter": m['letter'],
"apostrophe": m['apostrophe'] == "'",
}
return value
def expand_kCheungBauerIndex(value):
for i, v in enumerate(value):
m = v.split('.')
value[i] = {"page": int(m[0]), "character": int(m[1])}
return value
expand_kFennIndex = expand_kCheungBauerIndex
def expand_field(field, fvalue):
"""
Return structured value of information in UNIHAN field.
Parameters
----------
field : str
field name
fvalue : str
value of field
Returns
-------
list or dict :
expanded field information per UNIHAN's documentation
"""
if field in SPACE_DELIMITED_FIELDS and fvalue:
fvalue = fvalue.split(' ')
try:
expansion_func = eval('expand_%s' % field)
return expansion_func(fvalue)
except NameError:
pass
return fvalue