canvas-student-data-export/module/helpers.py

55 lines
1.6 KiB
Python

import os
import string
def make_valid_filename(input_str):
if not input_str:
return input_str
# Remove invalid characters
valid_chars = "-_.() %s%s" % (string.ascii_letters, string.digits)
input_str = input_str.replace("+", " ") # Canvas default for spaces
input_str = input_str.replace(":", "-")
input_str = input_str.replace("/", "-")
input_str = "".join(c for c in input_str if c in valid_chars)
# Remove leading and trailing whitespace
input_str = input_str.lstrip().rstrip()
# Remove trailing periods
input_str = input_str.rstrip(".")
return input_str
def make_valid_folder_path(input_str):
# Remove invalid characters
valid_chars = "-_.()/ %s%s" % (string.ascii_letters, string.digits)
input_str = input_str.replace("+", " ") # Canvas default for spaces
input_str = input_str.replace(":", "-")
input_str = "".join(c for c in input_str if c in valid_chars)
# Remove leading and trailing whitespace, separators
input_str = input_str.lstrip().rstrip().strip("/").strip("\\")
# Remove trailing periods
input_str = input_str.rstrip(".")
# Replace path separators with OS default
input_str = input_str.replace("/", os.sep)
return input_str
def shorten_file_name(string, shorten_by) -> str:
if not string or shorten_by <= 0:
return string
# Shorten string by specified value + 1 for "-" to indicate incomplete file name (trailing periods not allowed)
string = string[:len(string) - (shorten_by + 1)]
string = string.rstrip().rstrip(".").rstrip("-")
string += "-"
return string