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1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 | # -* coding: utf-8 -*- # # License: MIT (see LICENSE file provided) # vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: """ **polib** allows you to manipulate, create, modify gettext files (pot, po and mo files). You can load existing files, iterate through it's entries, add, modify entries, comments or metadata, etc. or create new po files from scratch. **polib** provides a simple and pythonic API via the :func:`~polib.pofile` and :func:`~polib.mofile` convenience functions. """ __author__ = 'David Jean Louis <izimobil@gmail.com>' __version__ = '1.0.3' __all__ = ['pofile', 'POFile', 'POEntry', 'mofile', 'MOFile', 'MOEntry', 'default_encoding', 'escape', 'unescape', 'detect_encoding', ] import array import codecs import os import re import struct import sys import textwrap # the default encoding to use when encoding cannot be detected default_encoding = 'utf-8' # python 2/3 compatibility helpers {{{ 46if sys.version_info[:2] < (3, 0): PY3 = False text_type = unicode def b(s): return s def u(s): return unicode(s, "unicode_escape") else: PY3 = True text_type = str def b(s): return s.encode("latin-1") def u(s): return s # }}} # _pofile_or_mofile {{{ def _pofile_or_mofile(f, type, **kwargs): """ Internal function used by :func:`polib.pofile` and :func:`polib.mofile` to honor the DRY concept. """ # get the file encoding enc = kwargs.get('encoding') 69 if enc is None: enc = detect_encoding(f, type == 'mofile') # parse the file kls = type == 'pofile' and _POFileParser or _MOFileParser parser = kls( f, encoding=enc, check_for_duplicates=kwargs.get('check_for_duplicates', False), klass=kwargs.get('klass') ) instance = parser.parse() instance.wrapwidth = kwargs.get('wrapwidth', 78) return instance # }}} # function pofile() {{{ def pofile(pofile, **kwargs): """ Convenience function that parses the po or pot file ``pofile`` and returns a :class:`~polib.POFile` instance. Arguments: ``pofile`` string, full or relative path to the po/pot file or its content (data). ``wrapwidth`` integer, the wrap width, only useful when the ``-w`` option was passed to xgettext (optional, default: ``78``). ``encoding`` string, the encoding to use (e.g. "utf-8") (default: ``None``, the encoding will be auto-detected). ``check_for_duplicates`` whether to check for duplicate entries when adding entries to the file (optional, default: ``False``). ``klass`` class which is used to instantiate the return value (optional, default: ``None``, the return value with be a :class:`~polib.POFile` instance). """ return _pofile_or_mofile(pofile, 'pofile', **kwargs) # }}} # function mofile() {{{ def mofile(mofile, **kwargs): """ Convenience function that parses the mo file ``mofile`` and returns a :class:`~polib.MOFile` instance. Arguments: ``mofile`` string, full or relative path to the mo file or its content (data). ``wrapwidth`` integer, the wrap width, only useful when the ``-w`` option was passed to xgettext to generate the po file that was used to format the mo file (optional, default: ``78``). ``encoding`` string, the encoding to use (e.g. "utf-8") (default: ``None``, the encoding will be auto-detected). ``check_for_duplicates`` whether to check for duplicate entries when adding entries to the file (optional, default: ``False``). ``klass`` class which is used to instantiate the return value (optional, default: ``None``, the return value with be a :class:`~polib.POFile` instance). """ return _pofile_or_mofile(mofile, 'mofile', **kwargs) # }}} # function detect_encoding() {{{ def detect_encoding(file, binary_mode=False): """ Try to detect the encoding used by the ``file``. The ``file`` argument can be a PO or MO file path or a string containing the contents of the file. If the encoding cannot be detected, the function will return the value of ``default_encoding``. Arguments: ``file`` string, full or relative path to the po/mo file or its content. ``binary_mode`` boolean, set this to True if ``file`` is a mo file. """ PATTERN = r'"?Content-Type:.+? charset=([\w_\-:\.]+)' rxt = re.compile(u(PATTERN)) rxb = re.compile(b(PATTERN)) def charset_exists(charset): """Check whether ``charset`` is valid or not.""" try: codecs.lookup(charset) except LookupError: return False return True try: is_file = os.path.exists(file) except (ValueError, UnicodeEncodeError): is_file = False 181 if not is_file: match = rxt.search(file) if match: enc = match.group(1).strip() if charset_exists(enc): return enc else: # For PY3, always treat as binary 189 if binary_mode or PY3: mode = 'rb' rx = rxb else: mode = 'r' rx = rxt f = open(file, mode) 204 for l in f.readlines(): match = rx.search(l) if match: f.close() enc = match.group(1).strip() 202 if not isinstance(enc, text_type): enc = enc.decode('utf-8') 195 if charset_exists(enc): return enc f.close() return default_encoding # }}} # function escape() {{{ def escape(st): """ Escapes the characters ``\\\\``, ``\\t``, ``\\n``, ``\\r`` and ``"`` in the given string ``st`` and returns it. """ return st.replace('\\', r'\\')\ .replace('\t', r'\t')\ .replace('\r', r'\r')\ .replace('\n', r'\n')\ .replace('\"', r'\"') # }}} # function unescape() {{{ def unescape(st): """ Unescapes the characters ``\\\\``, ``\\t``, ``\\n``, ``\\r`` and ``"`` in the given string ``st`` and returns it. """ def unescape_repl(m): m = m.group(1) if m == 'n': return '\n' 234 if m == 't': return '\t' 236 if m == 'r': return '\r' 238 if m == '\\': return '\\' return m # handles escaped double quote return re.sub(r'\\(\\|n|t|r|")', unescape_repl, st) # }}} # class _BaseFile {{{ class _BaseFile(list): """ Common base class for the :class:`~polib.POFile` and :class:`~polib.MOFile` classes. This class should **not** be instanciated directly. """ def __init__(self, *args, **kwargs): """ Constructor, accepts the following keyword arguments: ``pofile`` string, the path to the po or mo file, or its content as a string. ``wrapwidth`` integer, the wrap width, only useful when the ``-w`` option was passed to xgettext (optional, default: ``78``). ``encoding`` string, the encoding to use, defaults to ``default_encoding`` global variable (optional). ``check_for_duplicates`` whether to check for duplicate entries when adding entries to the file, (optional, default: ``False``). """ list.__init__(self) # the opened file handle pofile = kwargs.get('pofile', None) 276 if pofile and os.path.exists(pofile): self.fpath = pofile else: self.fpath = kwargs.get('fpath') # the width at which lines should be wrapped self.wrapwidth = kwargs.get('wrapwidth', 78) # the file encoding self.encoding = kwargs.get('encoding', default_encoding) # whether to check for duplicate entries or not self.check_for_duplicates = kwargs.get('check_for_duplicates', False) # header self.header = '' # both po and mo files have metadata self.metadata = {} self.metadata_is_fuzzy = 0 def __unicode__(self): """ Returns the unicode representation of the file. """ ret = [] entries = [self.metadata_as_entry()] + \ [e for e in self if not e.obsolete] for entry in entries: ret.append(entry.__unicode__(self.wrapwidth)) 299 for entry in self.obsolete_entries(): ret.append(entry.__unicode__(self.wrapwidth)) ret = u('\n').join(ret) assert isinstance(ret, text_type) #if type(ret) != text_type: # return unicode(ret, self.encoding) return ret 308 if PY3: def __str__(self): return self.__unicode__() else: def __str__(self): """ Returns the string representation of the file. """ return unicode(self).encode(self.encoding) def __contains__(self, entry): """ Overriden ``list`` method to implement the membership test (in and not in). The method considers that an entry is in the file if it finds an entry that has the same msgid (the test is **case sensitive**) and the same msgctxt (or none for both entries). Argument: ``entry`` an instance of :class:`~polib._BaseEntry`. """ return self.find(entry.msgid, by='msgid', msgctxt=entry.msgctxt) \ is not None def __eq__(self, other): return str(self) == str(other) def append(self, entry): """ Overriden method to check for duplicates entries, if a user tries to add an entry that is already in the file, the method will raise a ``ValueError`` exception. Argument: ``entry`` an instance of :class:`~polib._BaseEntry`. """ 348 if self.check_for_duplicates and entry in self: raise ValueError('Entry "%s" already exists' % entry.msgid) super(_BaseFile, self).append(entry) def insert(self, index, entry): """ Overriden method to check for duplicates entries, if a user tries to add an entry that is already in the file, the method will raise a ``ValueError`` exception. Arguments: ``index`` index at which the entry should be inserted. ``entry`` an instance of :class:`~polib._BaseEntry`. """ if self.check_for_duplicates and entry in self: raise ValueError('Entry "%s" already exists' % entry.msgid) super(_BaseFile, self).insert(index, entry) def metadata_as_entry(self): """ Returns the file metadata as a :class:`~polib.POFile` instance. """ e = POEntry(msgid='') mdata = self.ordered_metadata() 381 if mdata: strs = [] for name, value in mdata: # Strip whitespace off each line in a multi-line entry strs.append('%s: %s' % (name, value)) e.msgstr = '\n'.join(strs) + '\n' 382 if self.metadata_is_fuzzy: e.flags.append('fuzzy') return e def save(self, fpath=None, repr_method='__unicode__'): """ Saves the po file to ``fpath``. If it is an existing file and no ``fpath`` is provided, then the existing file is rewritten with the modified data. Keyword arguments: ``fpath`` string, full or relative path to the file. ``repr_method`` string, the method to use for output. """ 400 if self.fpath is None and fpath is None: raise IOError('You must provide a file path to save() method') contents = getattr(self, repr_method)() if fpath is None: fpath = self.fpath if repr_method == 'to_binary': fhandle = open(fpath, 'wb') else: fhandle = codecs.open(fpath, 'w', self.encoding) 409 if not isinstance(contents, text_type): contents = contents.decode(self.encoding) fhandle.write(contents) fhandle.close() # set the file path if not set 414 if self.fpath is None and fpath: self.fpath = fpath def find(self, st, by='msgid', include_obsolete_entries=False, msgctxt=False): """ Find the entry which msgid (or property identified by the ``by`` argument) matches the string ``st``. Keyword arguments: ``st`` string, the string to search for. ``by`` string, the property to use for comparison (default: ``msgid``). ``include_obsolete_entries`` boolean, whether to also search in entries that are obsolete. ``msgctxt`` string, allows to specify a specific message context for the search. """ 438 if include_obsolete_entries: entries = self[:] else: entries = [e for e in self if not e.obsolete] for e in entries: if getattr(e, by) == st: 444 if msgctxt is not False and e.msgctxt != msgctxt: continue return e return None def ordered_metadata(self): """ Convenience method that returns an ordered version of the metadata dictionary. The return value is list of tuples (metadata name, metadata_value). """ # copy the dict first metadata = self.metadata.copy() data_order = [ 'Project-Id-Version', 'Report-Msgid-Bugs-To', 'POT-Creation-Date', 'PO-Revision-Date', 'Last-Translator', 'Language-Team', 'MIME-Version', 'Content-Type', 'Content-Transfer-Encoding' ] ordered_data = [] for data in data_order: try: value = metadata.pop(data) ordered_data.append((data, value)) except KeyError: pass # the rest of the metadata will be alphabetically ordered since there # are no specs for this AFAIK for data in sorted(metadata.keys()): value = metadata[data] ordered_data.append((data, value)) return ordered_data def to_binary(self): """ Return the binary representation of the file. """ offsets = [] entries = self.translated_entries() # the keys are sorted in the .mo file def cmp(_self, other): # msgfmt compares entries with msgctxt if it exists self_msgid = _self.msgctxt and _self.msgctxt or _self.msgid other_msgid = other.msgctxt and other.msgctxt or other.msgid if self_msgid > other_msgid: return 1 elif self_msgid < other_msgid: return -1 else: return 0 # add metadata entry entries.sort(key=lambda o: o.msgctxt or o.msgid) mentry = self.metadata_as_entry() #mentry.msgstr = mentry.msgstr.replace('\\n', '').lstrip() entries = [mentry] + entries entries_len = len(entries) ids, strs = b(''), b('') for e in entries: # For each string, we need size and file offset. Each string is # NUL terminated; the NUL does not count into the size. msgid = b('') 513 if e.msgctxt: # Contexts are stored by storing the concatenation of the # context, a <EOT> byte, and the original string msgid = self._encode(e.msgctxt + '\4') if e.msgid_plural: msgstr = [] for index in sorted(e.msgstr_plural.keys()): msgstr.append(e.msgstr_plural[index]) msgid += self._encode(e.msgid + '\0' + e.msgid_plural) msgstr = self._encode('\0'.join(msgstr)) else: msgid += self._encode(e.msgid) msgstr = self._encode(e.msgstr) offsets.append((len(ids), len(msgid), len(strs), len(msgstr))) ids += msgid + b('\0') strs += msgstr + b('\0') # The header is 7 32-bit unsigned integers. keystart = 7 * 4 + 16 * entries_len # and the values start after the keys valuestart = keystart + len(ids) koffsets = [] voffsets = [] # The string table first has the list of keys, then the list of values. # Each entry has first the size of the string, then the file offset. for o1, l1, o2, l2 in offsets: koffsets += [l1, o1 + keystart] voffsets += [l2, o2 + valuestart] offsets = koffsets + voffsets # check endianness for magic number 543 if struct.pack('@h', 1) == struct.pack('<h', 1): magic_number = MOFile.LITTLE_ENDIAN else: magic_number = MOFile.BIG_ENDIAN output = struct.pack( "Iiiiiii", # Magic number magic_number, # Version 0, # number of entries entries_len, # start of key index 7 * 4, # start of value index 7 * 4 + entries_len * 8, # size and offset of hash table, we don't use hash tables 0, keystart ) 562 if PY3 and sys.version_info.minor > 1: # python 3.2 or superior output += array.array("i", offsets).tobytes() else: output += array.array("i", offsets).tostring() output += ids output += strs return output def _encode(self, mixed): """ Encodes the given ``mixed`` argument with the file encoding if and only if it's an unicode string and returns the encoded string. """ if isinstance(mixed, text_type): mixed = mixed.encode(self.encoding) return mixed # }}} # class POFile {{{ class POFile(_BaseFile): """ Po (or Pot) file reader/writer. This class inherits the :class:`~polib._BaseFile` class and, by extension, the python ``list`` type. """ def __unicode__(self): """ Returns the unicode representation of the po file. """ ret, headers = '', self.header.split('\n') for header in headers: 595 if header[:1] in [',', ':']: ret += '#%s\n' % header else: ret += '# %s\n' % header 600 if not isinstance(ret, text_type): ret = ret.decode(self.encoding) return ret + _BaseFile.__unicode__(self) def save_as_mofile(self, fpath): """ Saves the binary representation of the file to given ``fpath``. Keyword argument: ``fpath`` string, full or relative path to the mo file. """ _BaseFile.save(self, fpath, 'to_binary') def percent_translated(self): """ Convenience method that returns the percentage of translated messages. """ total = len([e for e in self if not e.obsolete]) 622 if total == 0: return 100 translated = len(self.translated_entries()) return int((100.00 / float(total)) * translated) def translated_entries(self): """ Convenience method that returns the list of translated entries. """ return [e for e in self if e.translated()] def untranslated_entries(self): """ Convenience method that returns the list of untranslated entries. """ return [e for e in self if not e.translated() and not e.obsolete and not 'fuzzy' in e.flags] def fuzzy_entries(self): """ Convenience method that returns the list of fuzzy entries. """ return [e for e in self if 'fuzzy' in e.flags] def obsolete_entries(self): """ Convenience method that returns the list of obsolete entries. """ return [e for e in self if e.obsolete] def merge(self, refpot): """ Convenience method that merges the current pofile with the pot file provided. It behaves exactly as the gettext msgmerge utility: * comments of this file will be preserved, but extracted comments and occurrences will be discarded; * any translations or comments in the file will be discarded, however, dot comments and file positions will be preserved; * the fuzzy flags are preserved. Keyword argument: ``refpot`` object POFile, the reference catalog. """ # Store entries in dict/set for faster access self_entries = dict((entry.msgid, entry) for entry in self) refpot_msgids = set(entry.msgid for entry in refpot) # Merge entries that are in the refpot for entry in refpot: e = self_entries.get(entry.msgid) if e is None: e = POEntry() self.append(e) e.merge(entry) # ok, now we must "obsolete" entries that are not in the refpot anymore for entry in self: if entry.msgid not in refpot_msgids: entry.obsolete = True # }}} # class MOFile {{{ class MOFile(_BaseFile): """ Mo file reader/writer. This class inherits the :class:`~polib._BaseFile` class and, by extension, the python ``list`` type. """ BIG_ENDIAN = 0xde120495 LITTLE_ENDIAN = 0x950412de def __init__(self, *args, **kwargs): """ Constructor, accepts all keywords arguments accepted by :class:`~polib._BaseFile` class. """ _BaseFile.__init__(self, *args, **kwargs) self.magic_number = None self.version = 0 def save_as_pofile(self, fpath): """ Saves the mofile as a pofile to ``fpath``. Keyword argument: ``fpath`` string, full or relative path to the file. """ _BaseFile.save(self, fpath) def save(self, fpath=None): """ Saves the mofile to ``fpath``. Keyword argument: ``fpath`` string, full or relative path to the file. """ _BaseFile.save(self, fpath, 'to_binary') def percent_translated(self): """ Convenience method to keep the same interface with POFile instances. """ return 100 def translated_entries(self): """ Convenience method to keep the same interface with POFile instances. """ return self def untranslated_entries(self): """ Convenience method to keep the same interface with POFile instances. """ return [] def fuzzy_entries(self): """ Convenience method to keep the same interface with POFile instances. """ return [] def obsolete_entries(self): """ Convenience method to keep the same interface with POFile instances. """ return [] # }}} # class _BaseEntry {{{ class _BaseEntry(object): """ Base class for :class:`~polib.POEntry` and :class:`~polib.MOEntry` classes. This class should **not** be instanciated directly. """ def __init__(self, *args, **kwargs): """ Constructor, accepts the following keyword arguments: ``msgid`` string, the entry msgid. ``msgstr`` string, the entry msgstr. ``msgid_plural`` string, the entry msgid_plural. ``msgstr_plural`` list, the entry msgstr_plural lines. ``msgctxt`` string, the entry context (msgctxt). ``obsolete`` bool, whether the entry is "obsolete" or not. ``encoding`` string, the encoding to use, defaults to ``default_encoding`` global variable (optional). """ self.msgid = kwargs.get('msgid', '') self.msgstr = kwargs.get('msgstr', '') self.msgid_plural = kwargs.get('msgid_plural', '') self.msgstr_plural = kwargs.get('msgstr_plural', {}) self.msgctxt = kwargs.get('msgctxt', None) self.obsolete = kwargs.get('obsolete', False) self.encoding = kwargs.get('encoding', default_encoding) def __unicode__(self, wrapwidth=78): """ Returns the unicode representation of the entry. """ 803 if self.obsolete: delflag = '#~ ' else: delflag = '' ret = [] # write the msgctxt if any if self.msgctxt is not None: ret += self._str_field("msgctxt", delflag, "", self.msgctxt, wrapwidth) # write the msgid ret += self._str_field("msgid", delflag, "", self.msgid, wrapwidth) # write the msgid_plural if any if self.msgid_plural: ret += self._str_field("msgid_plural", delflag, "", self.msgid_plural, wrapwidth) if self.msgstr_plural: # write the msgstr_plural if any msgstrs = self.msgstr_plural keys = list(msgstrs) keys.sort() for index in keys: msgstr = msgstrs[index] plural_index = '[%s]' % index ret += self._str_field("msgstr", delflag, plural_index, msgstr, wrapwidth) else: # otherwise write the msgstr ret += self._str_field("msgstr", delflag, "", self.msgstr, wrapwidth) ret.append('') ret = u('\n').join(ret) return ret 836 if PY3: def __str__(self): return self.__unicode__() else: def __str__(self): """ Returns the string representation of the entry. """ return unicode(self).encode(self.encoding) def __eq__(self, other): return str(self) == str(other) def _str_field(self, fieldname, delflag, plural_index, field, wrapwidth=78): lines = field.splitlines(True) if len(lines) > 1: lines = [''] + lines # start with initial empty line else: escaped_field = escape(field) specialchars_count = 0 for c in ['\\', '\n', '\r', '\t', '"']: specialchars_count += field.count(c) # comparison must take into account fieldname length + one space # + 2 quotes (eg. msgid "<string>") flength = len(fieldname) + 3 862 if plural_index: flength += len(plural_index) real_wrapwidth = wrapwidth - flength + specialchars_count if wrapwidth > 0 and len(field) > real_wrapwidth: # Wrap the line but take field name into account lines = [''] + [unescape(item) for item in wrap( escaped_field, wrapwidth - 2, # 2 for quotes "" drop_whitespace=False, break_long_words=False )] else: lines = [field] 876 if fieldname.startswith('previous_'): # quick and dirty trick to get the real field name fieldname = fieldname[9:] ret = ['%s%s%s "%s"' % (delflag, fieldname, plural_index, escape(lines.pop(0)))] for mstr in lines: #import pdb; pdb.set_trace() ret.append('%s"%s"' % (delflag, escape(mstr))) return ret # }}} # class POEntry {{{ class POEntry(_BaseEntry): """ Represents a po file entry. """ def __init__(self, *args, **kwargs): """ Constructor, accepts the following keyword arguments: ``comment`` string, the entry comment. ``tcomment`` string, the entry translator comment. ``occurrences`` list, the entry occurrences. ``flags`` list, the entry flags. ``previous_msgctxt`` string, the entry previous context. ``previous_msgid`` string, the entry previous msgid. ``previous_msgid_plural`` string, the entry previous msgid_plural. """ _BaseEntry.__init__(self, *args, **kwargs) self.comment = kwargs.get('comment', '') self.tcomment = kwargs.get('tcomment', '') self.occurrences = kwargs.get('occurrences', []) self.flags = kwargs.get('flags', []) self.previous_msgctxt = kwargs.get('previous_msgctxt', None) self.previous_msgid = kwargs.get('previous_msgid', None) self.previous_msgid_plural = kwargs.get('previous_msgid_plural', None) def __unicode__(self, wrapwidth=78): """ Returns the unicode representation of the entry. """ 932 if self.obsolete: return _BaseEntry.__unicode__(self, wrapwidth) ret = [] # comments first, if any (with text wrapping as xgettext does) comments = [('comment', '#. '), ('tcomment', '# ')] for c in comments: val = getattr(self, c[0]) if val: for comment in val.split('\n'): 942 if wrapwidth > 0 and len(comment) + len(c[1]) > wrapwidth: ret += wrap( comment, wrapwidth, initial_indent=c[1], subsequent_indent=c[1], break_long_words=False ) else: ret.append('%s%s' % (c[1], comment)) # occurrences (with text wrapping as xgettext does) if self.occurrences: filelist = [] for fpath, lineno in self.occurrences: 959 if lineno: filelist.append('%s:%s' % (fpath, lineno)) else: filelist.append(fpath) filestr = ' '.join(filelist) 966 if wrapwidth > 0 and len(filestr) + 3 > wrapwidth: # textwrap split words that contain hyphen, this is not # what we want for filenames, so the dirty hack is to # temporally replace hyphens with a char that a file cannot # contain, like "*" ret += [l.replace('*', '-') for l in wrap( filestr.replace('-', '*'), wrapwidth, initial_indent='#: ', subsequent_indent='#: ', break_long_words=False )] else: ret.append('#: ' + filestr) # flags (TODO: wrapping ?) 978 if self.flags: ret.append('#, %s' % ', '.join(self.flags)) # previous context and previous msgid/msgid_plural fields = ['previous_msgctxt', 'previous_msgid', 'previous_msgid_plural'] for f in fields: val = getattr(self, f) 986 if val: ret += self._str_field(f, "#| ", "", val, wrapwidth) ret.append(_BaseEntry.__unicode__(self, wrapwidth)) ret = u('\n').join(ret) assert isinstance(ret, text_type) #if type(ret) != types.UnicodeType: # return unicode(ret, self.encoding) return ret def __cmp__(self, other): """ Called by comparison operations if rich comparison is not defined. """ # First: Obsolete test if self.obsolete != other.obsolete: if self.obsolete: return -1 else: return 1 # Work on a copy to protect original occ1 = sorted(self.occurrences[:]) occ2 = sorted(other.occurrences[:]) pos = 0 for entry1 in occ1: try: entry2 = occ2[pos] except IndexError: return 1 pos = pos + 1 if entry1[0] != entry2[0]: if entry1[0] > entry2[0]: return 1 else: return -1 if entry1[1] != entry2[1]: if entry1[1] > entry2[1]: return 1 else: return -1 # Finally: Compare message ID if self.msgid > other.msgid: return 1 elif self.msgid < other.msgid: return -1 return 0 def __gt__(self, other): return self.__cmp__(other) > 0 def __lt__(self, other): return self.__cmp__(other) < 0 def __ge__(self, other): return self.__cmp__(other) >= 0 def __le__(self, other): return self.__cmp__(other) <= 0 def __eq__(self, other): return self.__cmp__(other) == 0 def __ne__(self, other): return self.__cmp__(other) != 0 def translated(self): """ Returns ``True`` if the entry has been translated or ``False`` otherwise. """ if self.obsolete or 'fuzzy' in self.flags: return False if self.msgstr != '': return True if self.msgstr_plural: for pos in self.msgstr_plural: 1064 if self.msgstr_plural[pos] == '': return False return True return False def merge(self, other): """ Merge the current entry with the given pot entry. """ self.msgid = other.msgid self.msgctxt = other.msgctxt self.occurrences = other.occurrences self.comment = other.comment fuzzy = 'fuzzy' in self.flags self.flags = other.flags[:] # clone flags if fuzzy: self.flags.append('fuzzy') self.msgid_plural = other.msgid_plural self.obsolete = other.obsolete self.previous_msgctxt = other.previous_msgctxt self.previous_msgid = other.previous_msgid self.previous_msgid_plural = other.previous_msgid_plural if other.msgstr_plural: for pos in other.msgstr_plural: try: # keep existing translation at pos if any self.msgstr_plural[pos] except KeyError: self.msgstr_plural[pos] = '' # }}} # class MOEntry {{{ class MOEntry(_BaseEntry): """ Represents a mo file entry. """ pass # }}} # class _POFileParser {{{ class _POFileParser(object): """ A finite state machine to parse efficiently and correctly po file format. """ def __init__(self, pofile, *args, **kwargs): """ Constructor. Keyword arguments: ``pofile`` string, path to the po file or its content ``encoding`` string, the encoding to use, defaults to ``default_encoding`` global variable (optional). ``check_for_duplicates`` whether to check for duplicate entries when adding entries to the file (optional, default: ``False``). """ enc = kwargs.get('encoding', default_encoding) 1136 if os.path.exists(pofile): try: self.fhandle = codecs.open(pofile, 'rU', enc) except LookupError: enc = default_encoding self.fhandle = codecs.open(pofile, 'rU', enc) else: self.fhandle = pofile.splitlines() klass = kwargs.get('klass') 1141 if klass is None: klass = POFile self.instance = klass( pofile=pofile, encoding=enc, check_for_duplicates=kwargs.get('check_for_duplicates', False) ) self.transitions = {} self.current_entry = POEntry() self.current_state = 'ST' self.current_token = None # two memo flags used in handlers self.msgstr_index = 0 self.entry_obsolete = 0 # Configure the state machine, by adding transitions. # Signification of symbols: # * ST: Beginning of the file (start) # * HE: Header # * TC: a translation comment # * GC: a generated comment # * OC: a file/line occurence # * FL: a flags line # * CT: a message context # * PC: a previous msgctxt # * PM: a previous msgid # * PP: a previous msgid_plural # * MI: a msgid # * MP: a msgid plural # * MS: a msgstr # * MX: a msgstr plural # * MC: a msgid or msgstr continuation line all = ['ST', 'HE', 'GC', 'OC', 'FL', 'CT', 'PC', 'PM', 'PP', 'TC', 'MS', 'MP', 'MX', 'MI'] self.add('TC', ['ST', 'HE'], 'HE') self.add('TC', ['GC', 'OC', 'FL', 'TC', 'PC', 'PM', 'PP', 'MS', 'MP', 'MX', 'MI'], 'TC') self.add('GC', all, 'GC') self.add('OC', all, 'OC') self.add('FL', all, 'FL') self.add('PC', all, 'PC') self.add('PM', all, 'PM') self.add('PP', all, 'PP') self.add('CT', ['ST', 'HE', 'GC', 'OC', 'FL', 'TC', 'PC', 'PM', 'PP', 'MS', 'MX'], 'CT') self.add('MI', ['ST', 'HE', 'GC', 'OC', 'FL', 'CT', 'TC', 'PC', 'PM', 'PP', 'MS', 'MX'], 'MI') self.add('MP', ['TC', 'GC', 'PC', 'PM', 'PP', 'MI'], 'MP') self.add('MS', ['MI', 'MP', 'TC'], 'MS') self.add('MX', ['MI', 'MX', 'MP', 'TC'], 'MX') self.add('MC', ['CT', 'MI', 'MP', 'MS', 'MX', 'PM', 'PP', 'PC'], 'MC') def parse(self): """ Run the state machine, parse the file line by line and call process() with the current matched symbol. """ i = 0 keywords = { 'msgctxt': 'CT', 'msgid': 'MI', 'msgstr': 'MS', 'msgid_plural': 'MP', } prev_keywords = { 'msgid_plural': 'PP', 'msgid': 'PM', 'msgctxt': 'PC', } for line in self.fhandle: i += 1 line = line.strip() if line == '': continue tokens = line.split(None, 2) nb_tokens = len(tokens) 1220 if tokens[0] == '#~|': continue if tokens[0] == '#~' and nb_tokens > 1: line = line[3:].strip() tokens = tokens[1:] nb_tokens -= 1 self.entry_obsolete = 1 else: self.entry_obsolete = 0 # Take care of keywords like # msgid, msgid_plural, msgctxt & msgstr. if tokens[0] in keywords and nb_tokens > 1: line = line[len(tokens[0]):].lstrip() 1235 if re.search(r'([^\\]|^)"', line[1:-1]): raise IOError('Syntax error in po file %s (line %s): ' 'unescaped double quote found' % (self.instance.fpath, i)) self.current_token = line self.process(keywords[tokens[0]], i) continue self.current_token = line if tokens[0] == '#:': 1246 if nb_tokens <= 1: continue # we are on a occurrences line self.process('OC', i) elif line[:1] == '"': # we are on a continuation line 1253 if re.search(r'([^\\]|^)"', line[1:-1]): raise IOError('Syntax error in po file %s (line %s): ' 'unescaped double quote found' % (self.instance.fpath, i)) self.process('MC', i) elif line[:7] == 'msgstr[': # we are on a msgstr plural self.process('MX', i) elif tokens[0] == '#,': 1264 if nb_tokens <= 1: continue # we are on a flags line self.process('FL', i) elif tokens[0] == '#' or tokens[0].startswith('##'): if line == '#': line += ' ' # we are on a translator comment line self.process('TC', i) 1280 elif tokens[0] == '#.': 1276 if nb_tokens <= 1: continue # we are on a generated comment line self.process('GC', i) elif tokens[0] == '#|': if nb_tokens <= 1: raise IOError('Syntax error in po file %s (line %s)' % (self.instance.fpath, i)) # Remove the marker and any whitespace right after that. line = line[2:].lstrip() self.current_token = line if tokens[1].startswith('"'): # Continuation of previous metadata. self.process('MC', i) continue if nb_tokens == 2: # Invalid continuation line. raise IOError('Syntax error in po file %s (line %s): ' 'invalid continuation line' % (self.instance.fpath, i)) # we are on a "previous translation" comment line, if tokens[1] not in prev_keywords: # Unknown keyword in previous translation comment. raise IOError('Syntax error in po file %s (line %s): ' 'unknown keyword %s' % (self.instance.fpath, i, tokens[1])) # Remove the keyword and any whitespace # between it and the starting quote. line = line[len(tokens[1]):].lstrip() self.current_token = line self.process(prev_keywords[tokens[1]], i) else: raise IOError('Syntax error in po file %s (line %s)' % (self.instance.fpath, i)) 1323 if self.current_entry: # since entries are added when another entry is found, we must add # the last entry here (only if there are lines) self.instance.append(self.current_entry) # before returning the instance, check if there's metadata and if # so extract it in a dict metadataentry = self.instance.find('') 1337 if metadataentry: # metadata found # remove the entry self.instance.remove(metadataentry) self.instance.metadata_is_fuzzy = metadataentry.flags key = None for msg in metadataentry.msgstr.splitlines(): try: key, val = msg.split(':', 1) self.instance.metadata[key] = val.strip() except (ValueError, KeyError): if key is not None: self.instance.metadata[key] += '\n' + msg.strip() # close opened file 1339 if not isinstance(self.fhandle, list): # must be file self.fhandle.close() return self.instance def add(self, symbol, states, next_state): """ Add a transition to the state machine. Keywords arguments: ``symbol`` string, the matched token (two chars symbol). ``states`` list, a list of states (two chars symbols). ``next_state`` the next state the fsm will have after the action. """ for state in states: action = getattr(self, 'handle_%s' % next_state.lower()) self.transitions[(symbol, state)] = (action, next_state) def process(self, symbol, linenum): """ Process the transition corresponding to the current state and the symbol provided. Keywords arguments: ``symbol`` string, the matched token (two chars symbol). ``linenum`` integer, the current line number of the parsed file. """ try: (action, state) = self.transitions[(symbol, self.current_state)] if action(): self.current_state = state except Exception: raise IOError('Syntax error in po file (line %s)' % linenum) # state handlers def handle_he(self): """Handle a header comment.""" if self.instance.header != '': self.instance.header += '\n' self.instance.header += self.current_token[2:] return 1 def handle_tc(self): """Handle a translator comment.""" 1394 if self.current_state in ['MC', 'MS', 'MX']: self.instance.append(self.current_entry) self.current_entry = POEntry() 1395 if self.current_entry.tcomment != '': self.current_entry.tcomment += '\n' tcomment = self.current_token.lstrip('#') 1399 if tcomment.startswith(' '): tcomment = tcomment[1:] self.current_entry.tcomment += tcomment return True def handle_gc(self): """Handle a generated comment.""" 1407 if self.current_state in ['MC', 'MS', 'MX']: self.instance.append(self.current_entry) self.current_entry = POEntry() 1408 if self.current_entry.comment != '': self.current_entry.comment += '\n' self.current_entry.comment += self.current_token[3:] return True def handle_oc(self): """Handle a file:num occurence.""" if self.current_state in ['MC', 'MS', 'MX']: self.instance.append(self.current_entry) self.current_entry = POEntry() occurrences = self.current_token[3:].split() for occurrence in occurrences: 1418 if occurrence != '': try: fil, line = occurrence.split(':') 1423 if not line.isdigit(): fil = fil + line line = '' self.current_entry.occurrences.append((fil, line)) except (ValueError, AttributeError): self.current_entry.occurrences.append((occurrence, '')) return True def handle_fl(self): """Handle a flags line.""" 1433 if self.current_state in ['MC', 'MS', 'MX']: self.instance.append(self.current_entry) self.current_entry = POEntry() self.current_entry.flags += self.current_token[3:].split(', ') return True def handle_pp(self): """Handle a previous msgid_plural line.""" if self.current_state in ['MC', 'MS', 'MX']: self.instance.append(self.current_entry) self.current_entry = POEntry() self.current_entry.previous_msgid_plural = \ unescape(self.current_token[1:-1]) return True def handle_pm(self): """Handle a previous msgid line.""" if self.current_state in ['MC', 'MS', 'MX']: self.instance.append(self.current_entry) self.current_entry = POEntry() self.current_entry.previous_msgid = \ unescape(self.current_token[1:-1]) return True def handle_pc(self): """Handle a previous msgctxt line.""" if self.current_state in ['MC', 'MS', 'MX']: self.instance.append(self.current_entry) self.current_entry = POEntry() self.current_entry.previous_msgctxt = \ unescape(self.current_token[1:-1]) return True def handle_ct(self): """Handle a msgctxt.""" if self.current_state in ['MC', 'MS', 'MX']: self.instance.append(self.current_entry) self.current_entry = POEntry() self.current_entry.msgctxt = unescape(self.current_token[1:-1]) return True def handle_mi(self): """Handle a msgid.""" if self.current_state in ['MC', 'MS', 'MX']: self.instance.append(self.current_entry) self.current_entry = POEntry() self.current_entry.obsolete = self.entry_obsolete self.current_entry.msgid = unescape(self.current_token[1:-1]) return True def handle_mp(self): """Handle a msgid plural.""" self.current_entry.msgid_plural = unescape(self.current_token[1:-1]) return True def handle_ms(self): """Handle a msgstr.""" self.current_entry.msgstr = unescape(self.current_token[1:-1]) return True def handle_mx(self): """Handle a msgstr plural.""" index, value = self.current_token[7], self.current_token[11:-1] self.current_entry.msgstr_plural[index] = unescape(value) self.msgstr_index = index return True def handle_mc(self): """Handle a msgid or msgstr continuation line.""" token = unescape(self.current_token[1:-1]) 1503 if self.current_state == 'CT': self.current_entry.msgctxt += token elif self.current_state == 'MI': self.current_entry.msgid += token elif self.current_state == 'MP': self.current_entry.msgid_plural += token elif self.current_state == 'MS': self.current_entry.msgstr += token 1512 elif self.current_state == 'MX': self.current_entry.msgstr_plural[self.msgstr_index] += token elif self.current_state == 'PP': token = token[3:] self.current_entry.previous_msgid_plural += token elif self.current_state == 'PM': token = token[3:] self.current_entry.previous_msgid += token elif self.current_state == 'PC': token = token[3:] self.current_entry.previous_msgctxt += token # don't change the current state return False # }}} # class _MOFileParser {{{ class _MOFileParser(object): """ A class to parse binary mo files. """ def __init__(self, mofile, *args, **kwargs): """ Constructor. Keyword arguments: ``mofile`` string, path to the mo file or its content ``encoding`` string, the encoding to use, defaults to ``default_encoding`` global variable (optional). ``check_for_duplicates`` whether to check for duplicate entries when adding entries to the file (optional, default: ``False``). """ self.fhandle = open(mofile, 'rb') klass = kwargs.get('klass') if klass is None: klass = MOFile self.instance = klass( fpath=mofile, encoding=kwargs.get('encoding', default_encoding), check_for_duplicates=kwargs.get('check_for_duplicates', False) ) def parse(self): """ Build the instance with the file handle provided in the constructor. """ # parse magic number magic_number = self._readbinary('<I', 4) if magic_number == MOFile.LITTLE_ENDIAN: ii = '<II' elif magic_number == MOFile.BIG_ENDIAN: ii = '>II' else: raise IOError('Invalid mo file, magic number is incorrect !') self.instance.magic_number = magic_number # parse the version number and the number of strings self.instance.version, numofstrings = self._readbinary(ii, 8) # original strings and translation strings hash table offset msgids_hash_offset, msgstrs_hash_offset = self._readbinary(ii, 8) # move to msgid hash table and read length and offset of msgids self.fhandle.seek(msgids_hash_offset) msgids_index = [] for i in range(numofstrings): msgids_index.append(self._readbinary(ii, 8)) # move to msgstr hash table and read length and offset of msgstrs self.fhandle.seek(msgstrs_hash_offset) msgstrs_index = [] for i in range(numofstrings): msgstrs_index.append(self._readbinary(ii, 8)) # build entries encoding = self.instance.encoding for i in range(numofstrings): self.fhandle.seek(msgids_index[i][1]) msgid = self.fhandle.read(msgids_index[i][0]) self.fhandle.seek(msgstrs_index[i][1]) msgstr = self.fhandle.read(msgstrs_index[i][0]) if i == 0: # metadata raw_metadata, metadata = msgstr.split(b('\n')), {} for line in raw_metadata: tokens = line.split(b(':'), 1) if tokens[0] != b(''): try: k = tokens[0].decode(encoding) v = tokens[1].decode(encoding) metadata[k] = v.strip() except IndexError: metadata[k] = u('') self.instance.metadata = metadata continue # test if we have a plural entry msgid_tokens = msgid.split(b('\0')) if len(msgid_tokens) > 1: entry = self._build_entry( msgid=msgid_tokens[0], msgid_plural=msgid_tokens[1], msgstr_plural=dict((k, v) for k, v in enumerate(msgstr.split(b('\0')))) ) else: entry = self._build_entry(msgid=msgid, msgstr=msgstr) self.instance.append(entry) # close opened file self.fhandle.close() return self.instance def _build_entry(self, msgid, msgstr=None, msgid_plural=None, msgstr_plural=None): msgctxt_msgid = msgid.split(b('\x04')) encoding = self.instance.encoding if len(msgctxt_msgid) > 1: kwargs = { 'msgctxt': msgctxt_msgid[0].decode(encoding), 'msgid': msgctxt_msgid[1].decode(encoding), } else: kwargs = {'msgid': msgid.decode(encoding)} if msgstr: kwargs['msgstr'] = msgstr.decode(encoding) if msgid_plural: kwargs['msgid_plural'] = msgid_plural.decode(encoding) if msgstr_plural: for k in msgstr_plural: msgstr_plural[k] = msgstr_plural[k].decode(encoding) kwargs['msgstr_plural'] = msgstr_plural return MOEntry(**kwargs) def _readbinary(self, fmt, numbytes): """ Private method that unpack n bytes of data using format <fmt>. It returns a tuple or a mixed value if the tuple length is 1. """ bytes = self.fhandle.read(numbytes) tup = struct.unpack(fmt, bytes) if len(tup) == 1: return tup[0] return tup # }}} # class TextWrapper {{{ class TextWrapper(textwrap.TextWrapper): """ Subclass of textwrap.TextWrapper that backport the drop_whitespace option. """ def __init__(self, *args, **kwargs): drop_whitespace = kwargs.pop('drop_whitespace', True) textwrap.TextWrapper.__init__(self, *args, **kwargs) self.drop_whitespace = drop_whitespace def _wrap_chunks(self, chunks): """_wrap_chunks(chunks : [string]) -> [string] Wrap a sequence of text chunks and return a list of lines of length 'self.width' or less. (If 'break_long_words' is false, some lines may be longer than this.) Chunks correspond roughly to words and the whitespace between them: each chunk is indivisible (modulo 'break_long_words'), but a line break can come between any two chunks. Chunks should not have internal whitespace; ie. a chunk is either all whitespace or a "word". Whitespace chunks will be removed from the beginning and end of lines, but apart from that whitespace is preserved. """ lines = [] if self.width <= 0: raise ValueError("invalid width %r (must be > 0)" % self.width) # Arrange in reverse order so items can be efficiently popped # from a stack of chucks. chunks.reverse() while chunks: # Start the list of chunks that will make up the current line. # cur_len is just the length of all the chunks in cur_line. cur_line = [] cur_len = 0 # Figure out which static string will prefix this line. if lines: indent = self.subsequent_indent else: indent = self.initial_indent # Maximum width for this line. width = self.width - len(indent) # First chunk on line is whitespace -- drop it, unless this # is the very beginning of the text (ie. no lines started yet). if self.drop_whitespace and chunks[-1].strip() == '' and lines: del chunks[-1] while chunks: l = len(chunks[-1]) # Can at least squeeze this chunk onto the current line. if cur_len + l <= width: cur_line.append(chunks.pop()) cur_len += l # Nope, this line is full. else: break # The current line is full, and the next chunk is too big to # fit on *any* line (not just this one). if chunks and len(chunks[-1]) > width: self._handle_long_word(chunks, cur_line, cur_len, width) # If the last chunk on this line is all whitespace, drop it. if self.drop_whitespace and cur_line and not cur_line[-1].strip(): del cur_line[-1] # Convert current line back to a string and store it in list # of all lines (return value). if cur_line: lines.append(indent + ''.join(cur_line)) return lines # }}} # function wrap() {{{ def wrap(text, width=70, **kwargs): """ Wrap a single paragraph of text, returning a list of wrapped lines. """ 1748 if sys.version_info < (2, 6): return TextWrapper(width=width, **kwargs).wrap(text) return textwrap.wrap(text, width=width, **kwargs) # }}}