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"""Script to remove some of the most common issues in the .tsv transcription file"""
import csv
import re
import os
import sys
import glob
def clean_tsv(input_file : str, output_file: str, revision_file: str) -> None:
"""Generic function
Args:
input_file (str): The path to the tsv file to clean
output_file (str): The path to the file to save the cleaned rows in. (Typically the same file)
revision_file (str): The path to the file to save still inconsistent rows in
Returns:
_type_: _description_
"""
cleaned_rows = []
revision_rows = []
# Helper function to clean the line
def clean_line(line):
# Remove unwanted characters
line = re.sub(r'[<>"]', '', line)
# Replace consecutive tabs with a single tab
line = re.sub(r'\t+', '\t', line)
return line
# Open the input file and process each row
with open(input_file, 'r', encoding='utf-8') as infile:
reader = csv.reader(infile, delimiter='\t')
for row in reader:
# Clean the row
row = [clean_line(item) for item in row]
# If the row has exactly 4 items, ensure the first two are numbers
if len(row) == 4:
try:
# Ensure the first two items are numbers
start_time = int(row[0])
end_time = int(row[1])
# Append the cleaned row
cleaned_rows.append(row)
except ValueError:
# If timestamps are not valid integers, move to revision
revision_rows.append(row)
print("One problematic row has been added to revision")
# If the row has more than 4 items and no consecutive \t, check for \t swapped with space
elif len(row) > 4:
row_str = "\t".join(row)
if ',' in row_str:
row_str = re.sub(r',\t', ', ', row_str)
# After fixing spaces, split again and check the length
row_fixed = row_str.split('\t')
if len(row_fixed) == 4:
cleaned_rows.append(row_fixed)
else:
revision_rows.append(row_fixed)
print("One problematic row has been added to revision")
else:
# For rows with incorrect number of elements, move to revision
revision_rows.append(row)
print("One problematic row has been added to revision")
# Write the cleaned rows to the output file
with open(output_file, 'w', encoding='utf-8', newline='') as outfile:
writer = csv.writer(outfile, delimiter='\t')
writer.writerows(cleaned_rows)
print(f"**** New cleaned tsv file saved at {output_file} ****")
if revision_rows:
# Write the revision rows to the revision file if there are rows to review
with open(revision_file, 'w', encoding='utf-8', newline='') as revfile:
writer = csv.writer(revfile, delimiter='\t')
writer.writerows(revision_rows)
print(f"**** New revision file saved at {revision_file} ****")
if __name__ == "__main__":
transcription_dir = sys.argv[1]
# Ensure revision directory exist
rev_dir = f'{transcription_dir}/revisions'
os.makedirs(rev_dir, exist_ok=True)
# get the paths to all the tsv files
tsv_files = glob.glob(transcription_dir + "/*.tsv")
for tsv_file in tsv_files:
in_file = tsv_file
out_file = in_file
rev_file = rev_dir + "/" + tsv_file.split("/")[-1][:-4] + "-rev.tsv"
clean_tsv(input_file=in_file, output_file=out_file, revision_file=rev_file)
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