Individual Text Fixes

def unescape_html(text: str) -> str:
    """
    Convert HTML entities to Unicode characters.
    
    Robust replacement for html.unescape that handles malformed entities
    and common entity mistakes. Converts entities like &amp; → &, &lt; → <.
    
    Args:
        text: String potentially containing HTML entities
        
    Returns:
        String with HTML entities converted to Unicode characters
        
    Examples:
        >>> unescape_html("&amp; &lt;tag&gt;")
        '& <tag>'
        >>> unescape_html("&EACUTE;")  # Handles incorrect capitalization  
        'É'
    """

def remove_terminal_escapes(text: str) -> str:
    """
    Remove ANSI terminal escape sequences.
    
    Strips color codes, cursor positioning, and other ANSI escape
    sequences commonly found in terminal output or log files.
    
    Args:
        text: String potentially containing ANSI escape sequences
        
    Returns:
        String with terminal escapes removed
        
    Examples:
        >>> remove_terminal_escapes("\\x1b[31mRed text\\x1b[0m")
        'Red text'
        >>> remove_terminal_escapes("\\x1b[2J\\x1b[HClear screen")
        'Clear screen'
    """

def remove_control_chars(text: str) -> str:
    """
    Remove unnecessary Unicode control characters.
    
    Removes control characters that have no visual effect and are
    typically unwanted artifacts in text processing.
    
    Args:
        text: String potentially containing control characters
        
    Returns:
        String with control characters removed
    """

def remove_bom(text: str) -> str:
    """
    Remove byte order marks (BOM) from text.
    
    Strips Unicode BOM characters that sometimes appear at the
    beginning of text files or strings.
    
    Args:
        text: String potentially starting with BOM
        
    Returns:
        String with BOM removed
    """

def uncurl_quotes(text: str) -> str:
    """
    Convert curly quotes to straight ASCII quotes.
    
    Replaces Unicode quotation marks with ASCII equivalents:
    ' ' → ', " " → ". Useful for systems requiring ASCII-only text.
    
    Args:
        text: String containing curly quotes
        
    Returns:
        String with straight ASCII quotes
        
    Examples:
        >>> uncurl_quotes("It's "quoted" text")
        'It\\'s "quoted" text'
        >>> uncurl_quotes("'single' and "double" quotes")
        '\\'single\\' and "double" quotes'
    """

def fix_character_width(text: str) -> str:
    """
    Normalize fullwidth and halfwidth characters.
    
    Converts fullwidth Latin characters to normal width and halfwidth
    Katakana to normal width for consistent display and processing.
    
    Args:
        text: String containing width-variant characters
        
    Returns:
        String with normalized character widths
        
    Examples:
        >>> fix_character_width("ＬＯＵＤ　ＮＯＩＳＥＳ")
        'LOUD NOISES'
        >>> fix_character_width("ﾊﾝｶｸ")  # Halfwidth Katakana
        'ハンカク'
    """

def fix_latin_ligatures(text: str) -> str:
    """
    Replace Latin ligatures with individual letters.
    
    Converts typographic ligatures like fi, fl back to individual
    characters (fi, fl) for searchability and processing.
    
    Args:
        text: String containing Latin ligatures
        
    Returns:
        String with ligatures replaced by letter sequences
        
    Examples:
        >>> fix_latin_ligatures("file and flower")
        'file and flower'
        >>> fix_latin_ligatures("office")
        'office'
    """

def fix_line_breaks(text: str) -> str:
    """
    Standardize line breaks to Unix format (\\n).
    
    Converts Windows (\\r\\n), Mac (\\r), and other line ending
    variations to standard Unix newlines. Handles Unicode line
    separators and paragraph separators.
    
    Args:
        text: String with various line break formats
        
    Returns:
        String with standardized \\n line breaks
        
    Examples:
        >>> fix_line_breaks("line1\\r\\nline2\\rline3")
        'line1\\nline2\\nline3'
        >>> fix_line_breaks("para1\\u2029para2")  # Unicode paragraph sep
        'para1\\npara2'
    """

def fix_surrogates(text: str) -> str:
    """
    Fix UTF-16 surrogate pair sequences.
    
    Converts UTF-16 surrogate codepoints back to the original high-
    numbered Unicode characters like emoji. Fixes text decoded with
    obsolete UCS-2 standard.
    
    Args:
        text: String containing UTF-16 surrogates
        
    Returns:
        String with surrogates converted to proper characters
        
    Examples:
        >>> fix_surrogates("\\ud83d\\ude00")  # Surrogate pair
        '😀'
    """

def fix_c1_controls(text: str) -> str:
    """
    Replace C1 control characters with Windows-1252 equivalents.
    
    Converts Latin-1 control characters (U+80-U+9F) to their
    Windows-1252 interpretations following HTML5 standard.
    
    Args:
        text: String containing C1 control characters
        
    Returns:
        String with C1 controls replaced
        
    Examples:
        >>> fix_c1_controls("\\x80")  # C1 control
        '€'  # Windows-1252 Euro sign
    """

def restore_byte_a0(byts: bytes) -> bytes:
    """
    Restore byte 0xA0 in potential UTF-8 mojibake.
    
    Replaces literal space (0x20) with non-breaking space (0xA0)
    when it would make the bytes valid UTF-8. Used during encoding
    detection to handle common mojibake patterns.
    
    Args:
        byts: Byte sequence potentially containing altered UTF-8
        
    Returns:
        Byte sequence with 0xA0 restored where appropriate
    """

def replace_lossy_sequences(byts: bytes) -> bytes:
    """
    Replace lossy byte sequences in mojibake correction.
    
    Identifies and replaces sequences where information was lost
    during encoding/decoding, typically involving � or ? characters.
    
    Args:
        byts: Byte sequence from encoding detection
        
    Returns:
        Byte sequence with lossy sequences replaced
    """

def decode_inconsistent_utf8(text: str) -> str:
    """
    Handle inconsistent UTF-8 sequences in text.
    
    Fixes text where UTF-8 mojibake patterns exist but there's no
    consistent way to reinterpret the string in a single encoding.
    Replaces problematic sequences with proper UTF-8.
    
    Args:
        text: String with inconsistent UTF-8 sequences
        
    Returns:
        String with UTF-8 sequences corrected
    """

def decode_escapes(text: str) -> str:
    """
    Decode backslash escape sequences in text.
    
    More robust version of string decode that handles various escape
    sequence formats including \\n, \\t, \\uXXXX, \\xXX patterns.
    
    Args:
        text: String containing escape sequences
        
    Returns:
        String with escape sequences decoded
        
    Examples:
        >>> decode_escapes("Hello\\nWorld\\t!")
        'Hello\\nWorld\\t!'
        >>> decode_escapes("Unicode: \\u00e9")
        'Unicode: é'
    """

from ftfy.fixes import unescape_html, remove_terminal_escapes, uncurl_quotes

# Apply individual fixes
html_text = "<p>Hello & goodbye</p>"
clean_html = unescape_html(html_text)
print(clean_html)  # "<p>Hello & goodbye</p>"

# Clean terminal output
terminal_output = "\x1b[31mError:\x1b[0m File not found"
clean_output = remove_terminal_escapes(terminal_output)
print(clean_output)  # "Error: File not found"

# Normalize quotes for ASCII systems
curly_text = "It's "perfectly" fine"
straight_quotes = uncurl_quotes(curly_text)
print(straight_quotes)  # 'It\'s "perfectly" fine'

from ftfy.fixes import fix_character_width, fix_latin_ligatures

# Fix fullwidth characters
wide_text = "ＨＥＬＬＯ　ＷＯＲＬＤ"  
normal_text = fix_character_width(wide_text)
print(normal_text)  # "HELLO WORLD"

# Decompose ligatures  
ligature_text = "The office file"
decomposed = fix_latin_ligatures(ligature_text)
print(decomposed)  # "The office file"

from ftfy.fixes import fix_line_breaks

# Standardize mixed line endings
mixed_lines = "Line 1\r\nLine 2\rLine 3\nLine 4"
unix_lines = fix_line_breaks(mixed_lines)
print(repr(unix_lines))  # 'Line 1\nLine 2\nLine 3\nLine 4'

# Handle Unicode line separators
unicode_lines = "Para 1\u2029Para 2\u2028Line break"
standard_lines = fix_line_breaks(unicode_lines) 
print(repr(standard_lines))  # 'Para 1\nPara 2\nLine break'

from ftfy.fixes import fix_surrogates, fix_c1_controls

# Fix emoji from surrogate pairs
surrogate_emoji = "\ud83d\ude00\ud83d\ude01"  # Encoded emoji
real_emoji = fix_surrogates(surrogate_emoji)
print(real_emoji)  # "😀😁"

# Fix C1 control characters  
latin1_controls = "\x80\x85\x91\x92"  # C1 controls
windows1252 = fix_c1_controls(latin1_controls)
print(windows1252)  # "€…''"

from ftfy.fixes import (
    unescape_html, remove_terminal_escapes, 
    uncurl_quotes, fix_character_width, fix_line_breaks
)

def custom_clean(text):
    """Custom text cleaning pipeline."""
    text = remove_terminal_escapes(text)
    text = unescape_html(text)
    text = uncurl_quotes(text) 
    text = fix_character_width(text)
    text = fix_line_breaks(text)
    return text

# Apply custom cleaning
messy_text = "\x1b[32m<ＨＥＬＬＯ>\x1b[0m "world"\r\n"
clean_text = custom_clean(messy_text)
print(clean_text)  # '<HELLO> "world"\n'