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Code enhancements in vrt file normalizer module

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This commit is contained in:
Patrick Jentsch 2024-11-07 10:40:25 +01:00
parent 909b130285
commit b4faa1c695
1 changed files with 53 additions and 53 deletions
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106
app/converters/vrt.py
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@ -1,69 +1,25 @@
from flask import current_app
from pathlib import Path
def normalize_vrt_file(input_file, output_file):
def check_pos_attribute_order(vrt_lines):
# The following orders are possible:
# since 26.02.2019: 'word,lemma,simple_pos,pos,ner'
# since 26.03.2021: 'word,pos,lemma,simple_pos,ner'
# since 27.01.2022: 'word,pos,lemma,simple_pos'
# This Function tries to find out which order we have by looking at the
# number of attributes and the position of the simple_pos attribute
SIMPLE_POS_LABELS = [
'ADJ', 'ADP', 'ADV', 'AUX', 'CONJ',
'DET', 'INTJ', 'NOUN', 'NUM', 'PART',
'PRON', 'PROPN', 'PUNCT', 'SCONJ', 'SYM',
'VERB', 'X'
]
for line in vrt_lines:
if line.startswith('<'):
continue
pos_attrs = line.rstrip('\n').split('\t')
num_pos_attrs = len(pos_attrs)
if num_pos_attrs == 4:
if pos_attrs[3] in SIMPLE_POS_LABELS:
return ['word', 'pos', 'lemma', 'simple_pos']
continue
elif num_pos_attrs == 5:
if pos_attrs[2] in SIMPLE_POS_LABELS:
return ['word', 'lemma', 'simple_pos', 'pos', 'ner']
elif pos_attrs[3] in SIMPLE_POS_LABELS:
return ['word', 'pos', 'lemma', 'simple_pos', 'ner']
continue
return None
def check_has_ent_as_s_attr(vrt_lines):
for line in vrt_lines:
if line.startswith('<ent'):
return True
return False
def pos_attrs_to_string_1(pos_attrs):
return f'{pos_attrs[0]}\t{pos_attrs[3]}\t{pos_attrs[1]}\t{pos_attrs[2]}\n'
def pos_attrs_to_string_2(pos_attrs):
return f'{pos_attrs[0]}\t{pos_attrs[1]}\t{pos_attrs[2]}\t{pos_attrs[3]}\n'
def normalize_vrt_file(input_file: Path, output_file: Path):
current_app.logger.info(f'Converting {input_file}...')
with open(input_file) as f:
with input_file.open() as f:
input_vrt_lines = f.readlines()
pos_attr_order = check_pos_attribute_order(input_vrt_lines)
has_ent_as_s_attr = check_has_ent_as_s_attr(input_vrt_lines)
pos_attr_order = _check_pos_attribute_order(input_vrt_lines)
has_ent_as_s_attr = _check_has_ent_as_s_attr(input_vrt_lines)
current_app.logger.info(f'Detected pos_attr_order: [{",".join(pos_attr_order)}]')
current_app.logger.info(f'Detected has_ent_as_s_attr: {has_ent_as_s_attr}')
if pos_attr_order == ['word', 'lemma', 'simple_pos', 'pos', 'ner']:
pos_attrs_to_string_function = pos_attrs_to_string_1
pos_attrs_to_string_function = _pos_attrs_to_string_1
elif pos_attr_order == ['word', 'pos', 'lemma', 'simple_pos', 'ner']:
pos_attrs_to_string_function = pos_attrs_to_string_2
pos_attrs_to_string_function = _pos_attrs_to_string_2
elif pos_attr_order == ['word', 'pos', 'lemma', 'simple_pos']:
pos_attrs_to_string_function = pos_attrs_to_string_2
pos_attrs_to_string_function = _pos_attrs_to_string_2
else:
raise Exception('Can not handle format')
@ -113,5 +69,49 @@ def normalize_vrt_file(input_file, output_file):
current_ent = pos_attrs[4]
output_vrt += pos_attrs_to_string_function(pos_attrs)
with open(output_file, 'w') as f:
with output_file.open(mode='w') as f:
f.write(output_vrt)
def _check_pos_attribute_order(vrt_lines: list[str]) -> list[str]:
# The following orders are possible:
# since 26.02.2019: 'word,lemma,simple_pos,pos,ner'
# since 26.03.2021: 'word,pos,lemma,simple_pos,ner'
# since 27.01.2022: 'word,pos,lemma,simple_pos'
# This Function tries to find out which order we have by looking at the
# number of attributes and the position of the simple_pos attribute
SIMPLE_POS_LABELS = [
'ADJ', 'ADP', 'ADV', 'AUX', 'CONJ', 'DET', 'INTJ', 'NOUN', 'NUM',
'PART', 'PRON', 'PROPN', 'PUNCT', 'SCONJ', 'SYM', 'VERB', 'X'
]
for line in vrt_lines:
if line.startswith('<'):
continue
pos_attrs = line.rstrip('\n').split('\t')
num_pos_attrs = len(pos_attrs)
if num_pos_attrs == 4:
if pos_attrs[3] in SIMPLE_POS_LABELS:
return ['word', 'pos', 'lemma', 'simple_pos']
continue
elif num_pos_attrs == 5:
if pos_attrs[2] in SIMPLE_POS_LABELS:
return ['word', 'lemma', 'simple_pos', 'pos', 'ner']
elif pos_attrs[3] in SIMPLE_POS_LABELS:
return ['word', 'pos', 'lemma', 'simple_pos', 'ner']
continue
# TODO: raise exception "can't determine attribute order"
def _check_has_ent_as_s_attr(vrt_lines: list[str]) -> bool:
for line in vrt_lines:
if line.startswith('<ent'):
return True
return False
def _pos_attrs_to_string_1(pos_attrs: list[str]) -> str:
return f'{pos_attrs[0]}\t{pos_attrs[3]}\t{pos_attrs[1]}\t{pos_attrs[2]}\n'
def _pos_attrs_to_string_2(pos_attrs: list[str]) -> str:
return f'{pos_attrs[0]}\t{pos_attrs[1]}\t{pos_attrs[2]}\t{pos_attrs[3]}\n'