YffL@sdZddlZddddddgZd ZGd ddZd d dZd d dZddZejdej Z ejdej Z ddZ dddZ edkree ddS)zText wrapping and filling. N TextWrapperwrapfilldedentindentshortenz c@sqeZdZdZiZedZxeD]Zeeee string Munge whitespace in text: expand tabs and convert all other whitespace characters to spaces. Eg. " foo\tbar\n\nbaz" becomes " foo bar baz". )r expandtabsrr translateunicode_whitespace_trans)rtextrrr_munge_whitespaces   zTextWrapper._munge_whitespacecCsM|jdkr$|jj|}n|jj|}dd|D}|S)aN_split(text : string) -> [string] Split the text to wrap into indivisible chunks. Chunks are not quite the same as words; see _wrap_chunks() for full details. As an example, the text Look, goof-ball -- use the -b option! breaks into the following chunks: 'Look,', ' ', 'goof-', 'ball', ' ', '--', ' ', 'use', ' ', 'the', ' ', '-b', ' ', 'option!' if break_on_hyphens is True, or in: 'Look,', ' ', 'goof-ball', ' ', '--', ' ', 'use', ' ', 'the', ' ', '-b', ' ', option!' otherwise. TcSsg|]}|r|qSrr).0crrr s z&TextWrapper._split..)r wordsep_resplitwordsep_simple_re)rr!chunksrrr_splits zTextWrapper._splitcCs|d}|jj}xc|t|dkrw||ddkrj|||rjd||d<|d7}q|d7}qWdS)ag_fix_sentence_endings(chunks : [string]) Correct for sentence endings buried in 'chunks'. Eg. when the original text contains "... foo.\nBar ...", munge_whitespace() and split() will convert that to [..., "foo.", " ", "Bar", ...] which has one too few spaces; this method simply changes the one space to two. rr rz N)sentence_end_researchlen)rr)iZ patsearchrrr_fix_sentence_endingss  $ z!TextWrapper._fix_sentence_endingscCs{|dkrd}n ||}|jr^|j|dd||d|d|d|j rgt|dkrg|dj rg||krg|j |dj|qx|r|dj r|t|j|kr|j |j|j |dj|P|t|d8}|d=qjW|r-|dj}t|t|j|jkr-||j|d [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. rzinvalid width %r (must be > 0)Nr z#placeholder too large for max widthr r1r1r1r1r1r1r1r1r1r1r1r1)r ValueErrorrrrr.rlstripreverserstripr2r3r6summapjoinrstrip) rr)linesrr4r5rlZ prev_linerrr _wrap_chunkssp   (     %  %    zTextWrapper._wrap_chunkscCs|j|}|j|S)N)r"r*)rr!rrr _split_chunksPszTextWrapper._split_chunkscCs2|j|}|jr%|j||j|S)a^wrap(text : string) -> [string] Reformat the single paragraph in 'text' so it fits in lines of no more than 'self.width' columns, and return a list of wrapped lines. Tabs in 'text' are expanded with string.expandtabs(), and all other whitespace characters (including newline) are converted to space. )rBrr0rA)rr!r)rrrrVs   zTextWrapper.wrapcCsdj|j|S)zfill(text : string) -> string Reformat the single paragraph in 'text' to fit in lines of no more than 'self.width' columns, and return a new string containing the entire wrapped paragraph.  )r=r)rr!rrrrdszTextWrapper.fill)__name__ __module__ __qualname____doc__r ordZuspace _whitespacexZ word_punctZletterreescapeZ whitespaceZ nowhitespacecompileVERBOSEr&r(r,rr"r*r0r6rArBrrrrrrrsJ /        ! g  r cKstd||}|j|S)aWrap a single paragraph of text, returning a list of wrapped lines. Reformat the single paragraph in 'text' so it fits in lines of no more than 'width' columns, and return a list of wrapped lines. By default, tabs in 'text' are expanded with string.expandtabs(), and all other whitespace characters (including newline) are converted to space. See TextWrapper class for available keyword args to customize wrapping behaviour. r)rr)r!rkwargswrrrrps cKstd||}|j|S)aFill a single paragraph of text, returning a new string. Reformat the single paragraph in 'text' to fit in lines of no more than 'width' columns, and return a new string containing the entire wrapped paragraph. As with wrap(), tabs are expanded and other whitespace characters converted to space. See TextWrapper class for available keyword args to customize wrapping behaviour. r)rr)r!rrOrPrrrr}s cKs:td|dd|}|jdj|jjS)aCollapse and truncate the given text to fit in the given width. The text first has its whitespace collapsed. If it then fits in the *width*, it is returned as is. Otherwise, as many words as possible are joined and then the placeholder is appended:: >>> textwrap.shorten("Hello world!", width=12) 'Hello world!' >>> textwrap.shorten("Hello world!", width=11) 'Hello [...]' rrr r)rrr=r:r')r!rrOrPrrrrs z^[ ]+$z(^[ ]*)(?:[^ ])cCsKd}tjd|}tj|}x|D]}|dkrI|}q.|j|r[q.|j|rs|}q.x\tt||D]/\}\}}||kr|d|}PqW|dt|}q.Wdr(|r(xC|jdD]2}| s|j|st d||fqW|rGt jd|d|}|S)a:Remove any common leading whitespace from every line in `text`. This can be used to make triple-quoted strings line up with the left edge of the display, while still presenting them in the source code in indented form. Note that tabs and spaces are both treated as whitespace, but they are not equal: the lines " hello" and "\thello" are considered to have no common leading whitespace. (This behaviour is new in Python 2.5; older versions of this module incorrectly expanded tabs before searching for common leading whitespace.) Nr rrCzline = %r, margin = %rz(?m)^) _whitespace_only_resub_leading_whitespace_refindall startswith enumeratezipr.r'AssertionErrorrK)r!Zmarginindentsrr/rJylinerrrrs,    (  cs@dkrddfdd}dj|S)aFAdds 'prefix' to the beginning of selected lines in 'text'. If 'predicate' is provided, 'prefix' will only be added to the lines where 'predicate(line)' is True. If 'predicate' is not provided, it will default to adding 'prefix' to all non-empty lines that do not consist solely of whitespace characters. NcSs |jS)N)r:)r[rrr predicateszindent..predicatec3s9x2jdD]!}|r,|n|VqWdS)NT) splitlines)r[)r\prefixr!rrprefixed_linesszindent..prefixed_linesr )r=)r!r^r\r_r)r\r^r!rrs  __main__z Hello there. This is indented.)rGrK__all__rIrrrrrM MULTILINErQrSrrrDprintrrrrs `   5