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Capitalise title
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# Original by Daniel L. Greenwald | |
# http://dlgreenwald.weebly.com/blog/capitalizing-titles-in-bibtex | |
# Modified by Garrett Dash Nelson | |
import re | |
from titlecase import titlecase | |
def capitalise(x): | |
if x[0].isupper(): | |
x = "{" + x[0] + "}" + x[1:] | |
return x | |
# Input and output files | |
my_file = 'References.bib' | |
new_file = 'ReferencesCapitalized.bib' # in case you don't want to overwrite | |
# Match title, Title, booktitle, Booktitle fields | |
pattern = re.compile(r'(\W*)(title|journal)\s*=\s*{(.*)},') | |
# Read in old file | |
with open(my_file, 'r') as fid: | |
lines = fid.readlines() | |
# Search for title strings and replace with titlecase | |
newlines = [] | |
errors = [] | |
for line in lines: | |
# Check if line contains title | |
match_obj = pattern.match(line) | |
if match_obj is not None: | |
# Need to "escape" any special chars to avoid misinterpreting them in the regular expression. | |
oldtitle = re.escape(match_obj.group(3)) | |
# Apply titlecase to get the correct title. | |
newtitle = titlecase(match_obj.group(3)) | |
# Replace and add to list | |
p_title = re.compile(oldtitle) | |
try: | |
# Map is a lazy operation in Python 3 | |
result = map(capitalise, newtitle.split(" ")) | |
# Force lazy evaluation with list(...) | |
newtitle = " ".join(list(result)) | |
newline = p_title.sub(newtitle, line) | |
except Exception as e: | |
errors.append((e, newtitle)) | |
finally: | |
newlines.append(newline) | |
else: | |
# if not title, add as is. | |
newlines.append(line) | |
# Print output to new file | |
with open (new_file, 'w') as fid: | |
fid.writelines(newlines) | |
if errors: | |
print("This is an exception, please check the following articles:") | |
for (e, title) in errors: | |
print(f"f{e} -- {title}") |
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