Python Script to Fix *_glyphs.txt settings files for Dungeon Crawl Stone Soup (DCSS)

dcss_fix_glyphs.py

import sys

modified_lines = []

def write_modified_lines_to_file(filename):
    """
    Writes the list of modified lines to the file.
    """
    try:
        with open(filename, 'w', encoding='utf-8') as file:
            file.writelines(modified_lines)
    except FileNotFoundError:
        print(f"Error: The file '{filename}' was not found.")
    except Exception as e:
        print(f"An error occurred: {e}")

def print_last_char_unicode(filename):
    """
    Reads a file line by line and prints the Unicode code point (hex and decimal)
    for the last character of each line.

    Stores a modified version of each line with the last character replaced by
    the decimal Unicode code point and stores it in a global list to be used
    to replace the lines in the file later.
    """
    try:
        with open(filename, 'r', encoding='utf-8') as file:
            for line_num, line in enumerate(file, 1):
                # Use rstrip('\r\n') to remove common newline characters
                # before finding the last character. If you want to include
                # the newline character in the check, remove the rstrip part.
                cleaned_line = line.rstrip('\r\n')
                if cleaned_line:
                    last_char = cleaned_line[-1]
                    code_point = ord(last_char)
                    print(f"Line {line_num}: Last character is '{last_char}'")
                    print(f"  Hex: 0x{code_point:X}")
                    print(f"  Dec: {code_point}")

                    # store a modified version of the line with the last char
                    # replaced by the decimal unicode code point value
                    modified_line = cleaned_line[:-1] + str(code_point) + '\n'
                    modified_lines.append(modified_line)
                else:
                    print(f"Line {line_num}: Line is empty (or only contained newline characters), no last character found.")
    except FileNotFoundError:
        print(f"Error: The file '{filename}' was not found.")
    except Exception as e:
        print(f"An error occurred: {e}")

if __name__ == "__main__":
    if len(sys.argv) != 2:
        print("Usage: python script_name.py <filename>")
    else:
        # Pass the filename provided as a command-line argument
        print_last_char_unicode(sys.argv[1])
        write_modified_lines_to_file(sys.argv[1])