nltk.corpus.reader.UdhrCorpusReader¶
- class nltk.corpus.reader.UdhrCorpusReader[source]¶
Bases:
PlaintextCorpusReader- ENCODINGS = [('.*-Latin1$', 'latin-1'), ('.*-Hebrew$', 'hebrew'), ('.*-Arabic$', 'cp1256'), ('Czech_Cesky-UTF8', 'cp1250'), ('.*-Cyrillic$', 'cyrillic'), ('.*-SJIS$', 'SJIS'), ('.*-GB2312$', 'GB2312'), ('.*-Latin2$', 'ISO-8859-2'), ('.*-Greek$', 'greek'), ('.*-UTF8$', 'utf-8'), ('Hungarian_Magyar-Unicode', 'utf-16-le'), ('Amahuaca', 'latin1'), ('Turkish_Turkce-Turkish', 'latin5'), ('Lithuanian_Lietuviskai-Baltic', 'latin4'), ('Japanese_Nihongo-EUC', 'EUC-JP'), ('Japanese_Nihongo-JIS', 'iso2022_jp'), ('Chinese_Mandarin-HZ', 'hz'), ('Abkhaz\\-Cyrillic\\+Abkh', 'cp1251')]¶
- SKIP = {'Amharic-Afenegus6..60375', 'Armenian-DallakHelv', 'Azeri_Azerbaijani_Cyrillic-Az.Times.Cyr.Normal0117', 'Azeri_Azerbaijani_Latin-Az.Times.Lat0117', 'Bhojpuri-Agra', 'Burmese_Myanmar-UTF8', 'Burmese_Myanmar-WinResearcher', 'Chinese_Mandarin-HZ', 'Chinese_Mandarin-UTF8', 'Czech-Latin2-err', 'Esperanto-T61', 'Gujarati-UTF8', 'Hungarian_Magyar-Unicode', 'Japanese_Nihongo-JIS', 'Lao-UTF8', 'Magahi-Agra', 'Magahi-UTF8', 'Marathi-UTF8', 'Navaho_Dine-Navajo-Navaho-font', 'Russian_Russky-UTF8~', 'Tamil-UTF8', 'Tigrinya_Tigrigna-VG2Main', 'Vietnamese-TCVN', 'Vietnamese-VIQR', 'Vietnamese-VPS'}¶
- __init__(root='udhr')[source]¶
Construct a new plaintext corpus reader for a set of documents located at the given root directory. Example usage:
>>> root = '/usr/local/share/nltk_data/corpora/webtext/' >>> reader = PlaintextCorpusReader(root, '.*\.txt')
- Parameters
root – The root directory for this corpus.
fileids – A list or regexp specifying the fileids in this corpus.
word_tokenizer – Tokenizer for breaking sentences or paragraphs into words.
sent_tokenizer – Tokenizer for breaking paragraphs into words.
para_block_reader – The block reader used to divide the corpus into paragraph blocks.
- CorpusView[source]¶
alias of
StreamBackedCorpusView
- abspath(fileid)[source]¶
Return the absolute path for the given file.
- Parameters
fileid (str) – The file identifier for the file whose path should be returned.
- Return type
- abspaths(fileids=None, include_encoding=False, include_fileid=False)[source]¶
Return a list of the absolute paths for all fileids in this corpus; or for the given list of fileids, if specified.
- Parameters
fileids (None or str or list) – Specifies the set of fileids for which paths should be returned. Can be None, for all fileids; a list of file identifiers, for a specified set of fileids; or a single file identifier, for a single file. Note that the return value is always a list of paths, even if
fileidsis a single file identifier.include_encoding – If true, then return a list of
(path_pointer, encoding)tuples.
- Return type
list(PathPointer)
- encoding(file)[source]¶
Return the unicode encoding for the given corpus file, if known. If the encoding is unknown, or if the given file should be processed using byte strings (str), then return None.
- ensure_loaded()[source]¶
Load this corpus (if it has not already been loaded). This is used by LazyCorpusLoader as a simple method that can be used to make sure a corpus is loaded – e.g., in case a user wants to do help(some_corpus).
- open(file)[source]¶
Return an open stream that can be used to read the given file. If the file’s encoding is not None, then the stream will automatically decode the file’s contents into unicode.
- Parameters
file – The file identifier of the file to read.
- paras(fileids=None)[source]¶
- Returns
the given file(s) as a list of paragraphs, each encoded as a list of sentences, which are in turn encoded as lists of word strings.
- Return type
list(list(list(str)))
- raw(fileids=None)[source]¶
- Parameters
fileids – A list specifying the fileids that should be used.
- Returns
the given file(s) as a single string.
- Return type
str
- property root¶
The directory where this corpus is stored.
- Type