*RidZddlZddlmZmZmZmZddlmZdZ dje Z Gd d Z e d Z d eeee dfd eeee ffdZeee eeefeeeefeefZy)z Representation and utils for ranges of PDF file pages. Copyright (c) 2014, Steve Witham . All rights reserved. This software is available under a BSD license; see https://github.com/py-pdf/PyPDF2/blob/main/LICENSE N)AnyListTupleUnion) ParseErrorz(0|-?[1-9]\d*)z%^({int}|({int}?(:{int}?(:{int}?)?)))$)intceZdZdZdeedefddfdZede de fdZ defdZ defd Z defd Zd edeeeeffd Zd e de fdZddZy) PageRangeaK A slice-like representation of a range of page indices. For example, page numbers, only starting at zero. The syntax is like what you would put between brackets [ ]. The slice is one of the few Python types that can't be subclassed, but this class converts to and from slices, and allows similar use. - PageRange(str) parses a string representing a page range. - PageRange(slice) directly "imports" a slice. - to_slice() gives the equivalent slice. - str() and repr() allow printing. - indices(n) is like slice.indices(n). argreturnNct|tr||_yt|tr|j |_yt|t xrt jt|}|s t||jdr8t|jd}|dk7r|dznd}t|||_yt|jdddDcgc]}|r t|ndc}|_ycc}w)a Initialize with either a slice -- giving the equivalent page range, or a PageRange object -- making a copy, or a string like "int", "[int]:[int]" or "[int]:[int]:[int]", where the brackets indicate optional ints. Remember, page indices start with zero. Page range expression examples: : all pages. -1 last page. 22 just the 23rd page. :-1 all but the last page. 0:3 the first three pages. -2 second-to-last page. :3 the first three pages. -2: last two pages. 5: from the sixth page onward. -3:-1 third & second to last. The third, "stride" or "step" number is also recognized. ::2 0 2 4 ... to the end. 3:0:-1 3 2 1 but not 0. 1:10:2 1 3 5 7 9 2::-1 2 1 0. ::-1 all pages in reverse order. Note the difference between this notation and arguments to slice(): slice(3) means the first three pages; PageRange("3") means the range of only the fourth page. However PageRange(slice(3)) means the first three pages. Nr) isinstanceslice_slicer to_slicestrrematch PAGE_RANGE_RErgroupr )selfr mstartstopgs K/var/www/html/Extract/venv/lib/python3.12/site-packages/PyPDF2/pagerange.py__init__zPageRange.__init__%s. c5 !DK  c9 %,,.DK  sC ARXXmS%AS/ ! WWQZ OE % 519Dt,DKAqAQ!RAA#a&4"7!RSDK!RsC;inputct|ttfxs5t|txr#t t j t|S)z5True if input is a valid initializer for a PageRange.)rrr rboolrrr)r$s r"validzPageRange.validOs<%%!34 uc " KtBHH]E,J'K c|jS)z/Return the slice equivalent of this page range.)rrs r"rzPageRange.to_sliceVs {{r(cT|j}|jV|j1|j|jdzk(rt |jS|j|jf}n#|j|j|jf}dj d|DS)zA string like "1:2:3".r:c3:K|]}|dn t|yw)N)r).0is r" z$PageRange.__str__..esEaiSV3Es)rsteprr rjoin)rsindicess r"__str__zPageRange.__str__Zs} KK 66>ww"qvv1'<177|#ggqvvoGggqvvqvv-GxxEWEEEr(c6dtt|zdzS)z#A string like "PageRange('1:2:3')".z PageRange())reprrr*s r"__repr__zPageRange.__repr__gsd3t9o-33r(nc8|jj|S)z n is the length of the list of pages to choose from. Returns arguments for range(). See help(slice.indices). )rr5)rr;s r"r5zPageRange.indicesks {{""1%%r(othercVt|tsy|j|jk(S)NF)rr r)rr=s r"__eq__zPageRange.__eq__ss"%+{{ell**r(c t|tstdt||jj |jj t d|jj|jjf}|jj|jjf}|d|dkDr||}}|d|dkDr t dtt|dt|d|dS)NzCan't add PageRange and zCan't add PageRange with striderrzCan't add PageRanges with gap) rr TypeErrortyperr2 ValueErrorrr rmax)rr=abs r"__add__zPageRange.__add__xs%+6tE{mDE E ;;   '5<<+<+<+H>? ? KK  t{{// / LL   1 1 1 Q4!A$;aqA Q4!A$;<= =qtS1qt_566r()r=r r r )__name__ __module__ __qualname____doc__rrrr# staticmethodrr&r'rr6r:r rr5r?rGr(r"r r s"(TE%c"9:(Tt(TT S T  % F F4#4&&sC}!5&+C+D+ 7r(r r,argsr cg}d}d}|dgzD]b}tj|r,|s td|j|t|fd}D|r|s|j|tf|}d}d|S)a- Given a list of filenames and page ranges, return a list of (filename, page_range) pairs. First arg must be a filename; other ags are filenames, page-range expressions, slice objects, or PageRange objects. A filename not followed by a page range indicates all pages of the file. NFz8The first argument must be a filename, not a page range.T)r r'rCappendPAGE_RANGE_ALL)rNpairs pdf_filenamedid_page_ranger s r"parse_filename_page_rangesrUs*,ELNtf}# ??3  N LL, #7 8!NN lN;<L"N# Lr()rKrtypingrrrrerrorsr_INT_REformatrr rQrrUr PageRangeSpecrMr(r"r[s ** 7>>7>K t7t7n3 uS)T)* + %Y  @c9eCHouS#s]7KTRUYVW r(