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autotrain-flair-hipe2022-fr-hmbert / utils.py

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	from flair.data import Sentence
	from flair.embeddings import TransformerWordEmbeddings

	from pathlib import Path

	from typing import List


	def prepare_ajmc_corpus(
	file_in: Path, file_out: Path, eos_marker: str, document_separator: str, add_document_separator: bool
	):
	with open(file_in, "rt") as f_p:
	lines = f_p.readlines()

	with open(file_out, "wt") as f_out:
	# Add missing newline after header
	f_out.write(lines[0] + "\n")

	for line in lines[1:]:
	if line.startswith(" \t"):
	# Workaround for empty tokens
	continue

	line = line.strip()

	# HIPE-2022 late pre-submission fix:
	# Our hmBERT model has never seen Fraktur, so we replace long s
	line = line.replace("ſ", "s")

	# Add "real" document marker
	if add_document_separator and line.startswith(document_separator):
	f_out.write("-DOCSTART- O\n\n")

	f_out.write(line + "\n")

	if eos_marker in line:
	f_out.write("\n")

	print("Special preprocessing for AJMC has finished!")


	def prepare_clef_2020_corpus(
	file_in: Path, file_out: Path, eos_marker: str, document_separator: str, add_document_separator: bool
	):
	with open(file_in, "rt") as f_p:
	original_lines = f_p.readlines()

	lines = []

	# Add missing newline after header
	lines.append(original_lines[0])

	for line in original_lines[1:]:
	if line.startswith(" \t"):
	# Workaround for empty tokens
	continue

	line = line.strip()

	# Add "real" document marker
	if add_document_separator and line.startswith(document_separator):
	lines.append("-DOCSTART- O")
	lines.append("")

	lines.append(line)

	if eos_marker in line:
	lines.append("")

	# Now here comes the de-hyphenation part ;)
	word_seperator = "¬"

	for index, line in enumerate(lines):
	if line.startswith("#"):
	continue

	if line.startswith(word_seperator):
	continue

	if not line:
	continue

	prev_line = lines[index - 1]

	prev_prev_line = lines[index - 2]

	if not prev_line.startswith(word_seperator):
	continue

	# Example:
	# Po <- prev_prev_line
	# ¬ <- prev_line
	# len <- current_line
	#
	# will be de-hyphenated to:
	#
	# Polen Dehyphenated-3
	# # ¬
	# # len
	suffix = line.split("\t")[0]

	prev_prev_line_splitted = lines[index - 2].split("\t")
	prev_prev_line_splitted[0] += suffix

	prev_line_splitted = lines[index - 1].split("\t")
	prev_line_splitted[0] = "#" + prev_line_splitted[0]
	prev_line_splitted[-1] += "\|Commented"

	current_line_splitted = line.split("\t")
	current_line_splitted[0] = "#" + current_line_splitted[0]
	current_line_splitted[-1] += "\|Commented"

	# Add some meta information about suffix length
	# Later, it is possible to re-construct original token and suffix
	prev_prev_line_splitted[9] += f"\|Dehyphenated-{len(suffix)}"

	lines[index - 2] = "\t".join(prev_prev_line_splitted)
	lines[index - 1] = "\t".join(prev_line_splitted)
	lines[index] = "\t".join(current_line_splitted)

	# Post-Processing I
	for index, line in enumerate(lines):
	if not line:
	continue

	if not line.startswith(word_seperator):
	continue

	# oh noooo
	current_line_splitted = line.split("\t")
	current_line_splitted[0] = "#" + current_line_splitted[0]

	current_line_splitted[-1] += "\|Commented"

	lines[index] = "\t".join(current_line_splitted)

	# Post-Processing II
	# Beautify: _\|Commented –> Commented
	for index, line in enumerate(lines):
	if not line:
	continue

	if not line.startswith("#"):
	continue

	current_line_splitted = line.split("\t")

	if current_line_splitted[-1] == "_\|Commented":
	current_line_splitted[-1] = "Commented"
	lines[index] = "\t".join(current_line_splitted)

	# Finally, save it!
	with open(file_out, "wt") as f_out:
	for line in lines:
	f_out.write(line + "\n")


	def prepare_newseye_fi_sv_corpus(
	file_in: Path, file_out: Path, eos_marker: str, document_separator: str, add_document_separator: bool
	):
	with open(file_in, "rt") as f_p:
	original_lines = f_p.readlines()

	lines = []

	# Add missing newline after header
	lines.append(original_lines[0])

	for line in original_lines[1:]:
	if line.startswith(" \t"):
	# Workaround for empty tokens
	continue

	line = line.strip()

	# Add "real" document marker
	if add_document_separator and line.startswith(document_separator):
	lines.append("-DOCSTART- O")
	lines.append("")

	lines.append(line)

	if eos_marker in line:
	lines.append("")

	# Now here comes the de-hyphenation part
	# And we want to avoid matching "-DOCSTART-" lines here, so append a tab
	word_seperator = "-\t"

	for index, line in enumerate(lines):
	if line.startswith("#"):
	continue

	if line.startswith(word_seperator):
	continue

	if not line:
	continue

	prev_line = lines[index - 1]

	prev_prev_line = lines[index - 2]

	if not prev_line.startswith(word_seperator):
	continue

	# Example:
	# Po NoSpaceAfter <- prev_prev_line
	# - <- prev_line
	# len <- current_line
	#
	# will be de-hyphenated to:
	#
	# Polen Dehyphenated-3
	# # -
	# # len
	#
	# It is really important, that "NoSpaceAfter" in the previous
	# line before hyphenation character! Otherwise, it is no real
	# hyphenation!

	if not "NoSpaceAfter" in prev_line:
	continue

	if not prev_prev_line:
	continue

	suffix = line.split("\t")[0]

	prev_prev_line_splitted = lines[index - 2].split("\t")
	prev_prev_line_splitted[0] += suffix

	prev_line_splitted = lines[index - 1].split("\t")
	prev_line_splitted[0] = "# " + prev_line_splitted[0]
	prev_line_splitted[-1] += "\|Commented"

	current_line_splitted = line.split("\t")
	current_line_splitted[0] = "# " + current_line_splitted[0]
	current_line_splitted[-1] += "\|Commented"

	# Add some meta information about suffix length
	# Later, it is possible to re-construct original token and suffix
	prev_prev_line_splitted[9] += f"\|Dehyphenated-{len(suffix)}"

	lines[index - 2] = "\t".join(prev_prev_line_splitted)
	lines[index - 1] = "\t".join(prev_line_splitted)
	lines[index] = "\t".join(current_line_splitted)

	# Post-Processing I
	for index, line in enumerate(lines):
	if not line:
	continue

	if not line.startswith(word_seperator):
	continue

	# oh noooo
	current_line_splitted = line.split("\t")
	current_line_splitted[0] = "# " + current_line_splitted[0]

	current_line_splitted[-1] += "\|Commented"

	lines[index] = "\t".join(current_line_splitted)

	# Post-Processing II
	# Beautify: _\|Commented –> Commented
	for index, line in enumerate(lines):
	if not line:
	continue

	if not line.startswith("#"):
	continue

	current_line_splitted = line.split("\t")

	if current_line_splitted[-1] == "_\|Commented":
	current_line_splitted[-1] = "Commented"
	lines[index] = "\t".join(current_line_splitted)

	# Finally, save it!
	with open(file_out, "wt") as f_out:
	for line in lines:
	f_out.write(line + "\n")


	def prepare_newseye_de_fr_corpus(
	file_in: Path, file_out: Path, eos_marker: str, document_separator: str, add_document_separator: bool
	):
	with open(file_in, "rt") as f_p:
	original_lines = f_p.readlines()

	lines = []

	# Add missing newline after header
	lines.append(original_lines[0])

	for line in original_lines[1:]:
	if line.startswith(" \t"):
	# Workaround for empty tokens
	continue

	line = line.strip()

	# Add "real" document marker
	if add_document_separator and line.startswith(document_separator):
	lines.append("-DOCSTART- O")
	lines.append("")

	lines.append(line)

	if eos_marker in line:
	lines.append("")

	# Now here comes the de-hyphenation part ;)
	word_seperator = "¬"

	for index, line in enumerate(lines):
	if line.startswith("#"):
	continue

	if not line:
	continue

	last_line = lines[index - 1]
	last_line_splitted = last_line.split("\t")

	if not last_line_splitted[0].endswith(word_seperator):
	continue

	# The following example
	#
	# den O O O null null SpaceAfter
	# Ver¬ B-LOC O O null n <- last_line
	# einigten I-LOC O O null n SpaceAfter <- current_line
	# Staaten I-LOC O O null n
	# . O O O null null
	#
	# will be transformed to:
	#
	# den O O O null null SpaceAfter
	# Vereinigten B-LOC O O null n \|Normalized-8
	# #einigten I-LOC O O null n SpaceAfter\|Commented
	# Staaten I-LOC O O null n
	# . O O O null null

	suffix = last_line.split("\t")[0].replace(word_seperator, "") # Will be "Ver"

	prefix_length = len(line.split("\t")[0])

	# Override last_line:
	# Ver¬ will be transformed to Vereinigten with normalized information at the end

	last_line_splitted[0] = suffix + line.split("\t")[0]

	last_line_splitted[9] += f"\|Dehyphenated-{prefix_length}"

	current_line_splitted = line.split("\t")
	current_line_splitted[0] = "# " + current_line_splitted[0]
	current_line_splitted[-1] += "\|Commented"

	lines[index - 1] = "\t".join(last_line_splitted)
	lines[index] = "\t".join(current_line_splitted)

	# Post-Processing I
	# Beautify: _\|Commented –> Commented
	for index, line in enumerate(lines):
	if not line:
	continue

	if not line.startswith("#"):
	continue

	current_line_splitted = line.split("\t")

	if current_line_splitted[-1] == "_\|Commented":
	current_line_splitted[-1] = "Commented"
	lines[index] = "\t".join(current_line_splitted)

	# Finally, save it!
	with open(file_out, "wt") as f_out:
	for line in lines:
	f_out.write(line + "\n")

	print("Special preprocessing for German/French NewsEye dataset has finished!")