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#: ../Doc/library/difflib.rst:2
msgid ":mod:`difflib` --- Helpers for computing deltas"
msgstr ""
#: ../Doc/library/difflib.rst:11
msgid "**Source code:** :source:`Lib/difflib.py`"
msgstr ""
#: ../Doc/library/difflib.rst:20
msgid ""
"This module provides classes and functions for comparing sequences. It "
"can be used for example, for comparing files, and can produce difference "
"information in various formats, including HTML and context and unified "
"diffs. For comparing directories and files, see also, the :mod:`filecmp` "
"module."
msgstr ""
#: ../Doc/library/difflib.rst:28
msgid ""
"This is a flexible class for comparing pairs of sequences of any type, so"
" long as the sequence elements are :term:`hashable`. The basic algorithm"
" predates, and is a little fancier than, an algorithm published in the "
"late 1980's by Ratcliff and Obershelp under the hyperbolic name \"gestalt"
" pattern matching.\" The idea is to find the longest contiguous matching"
" subsequence that contains no \"junk\" elements; these \"junk\" elements "
"are ones that are uninteresting in some sense, such as blank lines or "
"whitespace. (Handling junk is an extension to the Ratcliff and Obershelp"
" algorithm.) The same idea is then applied recursively to the pieces of "
"the sequences to the left and to the right of the matching subsequence. "
"This does not yield minimal edit sequences, but does tend to yield "
"matches that \"look right\" to people."
msgstr ""
#: ../Doc/library/difflib.rst:40
msgid ""
"**Timing:** The basic Ratcliff-Obershelp algorithm is cubic time in the "
"worst case and quadratic time in the expected case. "
":class:`SequenceMatcher` is quadratic time for the worst case and has "
"expected-case behavior dependent in a complicated way on how many "
"elements the sequences have in common; best case time is linear."
msgstr ""
#: ../Doc/library/difflib.rst:46
#, python-format
msgid ""
"**Automatic junk heuristic:** :class:`SequenceMatcher` supports a "
"heuristic that automatically treats certain sequence items as junk. The "
"heuristic counts how many times each individual item appears in the "
"sequence. If an item's duplicates (after the first one) account for more "
"than 1% of the sequence and the sequence is at least 200 items long, this"
" item is marked as \"popular\" and is treated as junk for the purpose of "
"sequence matching. This heuristic can be turned off by setting the "
"``autojunk`` argument to ``False`` when creating the "
":class:`SequenceMatcher`."
msgstr ""
#: ../Doc/library/difflib.rst:54 ../Doc/library/difflib.rst:383
msgid "The *autojunk* parameter."
msgstr ""
#: ../Doc/library/difflib.rst:60
msgid ""
"This is a class for comparing sequences of lines of text, and producing "
"human-readable differences or deltas. Differ uses "
":class:`SequenceMatcher` both to compare sequences of lines, and to "
"compare sequences of characters within similar (near-matching) lines."
msgstr ""
#: ../Doc/library/difflib.rst:65
msgid "Each line of a :class:`Differ` delta begins with a two-letter code:"
msgstr ""
#: ../Doc/library/difflib.rst:68
msgid "Code"
msgstr ""
#: ../Doc/library/difflib.rst:68 ../Doc/library/difflib.rst:489
msgid "Meaning"
msgstr ""
#: ../Doc/library/difflib.rst:70
msgid "``'- '``"
msgstr ""
#: ../Doc/library/difflib.rst:70
msgid "line unique to sequence 1"
msgstr ""
#: ../Doc/library/difflib.rst:72
msgid "``'+ '``"
msgstr ""
#: ../Doc/library/difflib.rst:72
msgid "line unique to sequence 2"
msgstr ""
#: ../Doc/library/difflib.rst:74
msgid "``' '``"
msgstr ""
#: ../Doc/library/difflib.rst:74
msgid "line common to both sequences"
msgstr ""
#: ../Doc/library/difflib.rst:76
msgid "``'? '``"
msgstr ""
#: ../Doc/library/difflib.rst:76
msgid "line not present in either input sequence"
msgstr ""
#: ../Doc/library/difflib.rst:79
msgid ""
"Lines beginning with '``?``' attempt to guide the eye to intraline "
"differences, and were not present in either input sequence. These lines "
"can be confusing if the sequences contain tab characters."
msgstr ""
#: ../Doc/library/difflib.rst:86
msgid ""
"This class can be used to create an HTML table (or a complete HTML file "
"containing the table) showing a side by side, line by line comparison of "
"text with inter-line and intra-line change highlights. The table can be "
"generated in either full or contextual difference mode."
msgstr ""
#: ../Doc/library/difflib.rst:91
msgid "The constructor for this class is:"
msgstr ""
#: ../Doc/library/difflib.rst:96
msgid "Initializes instance of :class:`HtmlDiff`."
msgstr ""
#: ../Doc/library/difflib.rst:98
msgid ""
"*tabsize* is an optional keyword argument to specify tab stop spacing and"
" defaults to ``8``."
msgstr ""
#: ../Doc/library/difflib.rst:101
msgid ""
"*wrapcolumn* is an optional keyword to specify column number where lines "
"are broken and wrapped, defaults to ``None`` where lines are not wrapped."
msgstr ""
#: ../Doc/library/difflib.rst:104
msgid ""
"*linejunk* and *charjunk* are optional keyword arguments passed into "
":func:`ndiff` (used by :class:`HtmlDiff` to generate the side by side "
"HTML differences). See :func:`ndiff` documentation for argument default "
"values and descriptions."
msgstr ""
#: ../Doc/library/difflib.rst:108
msgid "The following methods are public:"
msgstr ""
#: ../Doc/library/difflib.rst:113
msgid ""
"Compares *fromlines* and *tolines* (lists of strings) and returns a "
"string which is a complete HTML file containing a table showing line by "
"line differences with inter-line and intra-line changes highlighted."
msgstr ""
#: ../Doc/library/difflib.rst:117
msgid ""
"*fromdesc* and *todesc* are optional keyword arguments to specify from/to"
" file column header strings (both default to an empty string)."
msgstr ""
#: ../Doc/library/difflib.rst:120
msgid ""
"*context* and *numlines* are both optional keyword arguments. Set "
"*context* to ``True`` when contextual differences are to be shown, else "
"the default is ``False`` to show the full files. *numlines* defaults to "
"``5``. When *context* is ``True`` *numlines* controls the number of "
"context lines which surround the difference highlights. When *context* "
"is ``False`` *numlines* controls the number of lines which are shown "
"before a difference highlight when using the \"next\" hyperlinks (setting"
" to zero would cause the \"next\" hyperlinks to place the next difference"
" highlight at the top of the browser without any leading context)."
msgstr ""
#: ../Doc/library/difflib.rst:130
msgid ""
"*charset* keyword-only argument was added. The default charset of HTML "
"document changed from ``'ISO-8859-1'`` to ``'utf-8'``."
msgstr ""
#: ../Doc/library/difflib.rst:136
msgid ""
"Compares *fromlines* and *tolines* (lists of strings) and returns a "
"string which is a complete HTML table showing line by line differences "
"with inter-line and intra-line changes highlighted."
msgstr ""
#: ../Doc/library/difflib.rst:140
msgid ""
"The arguments for this method are the same as those for the "
":meth:`make_file` method."
msgstr ""
#: ../Doc/library/difflib.rst:143
msgid ""
":file:`Tools/scripts/diff.py` is a command-line front-end to this class "
"and contains a good example of its use."
msgstr ""
#: ../Doc/library/difflib.rst:149
msgid ""
"Compare *a* and *b* (lists of strings); return a delta (a "
":term:`generator` generating the delta lines) in context diff format."
msgstr ""
#: ../Doc/library/difflib.rst:152
msgid ""
"Context diffs are a compact way of showing just the lines that have "
"changed plus a few lines of context. The changes are shown in a "
"before/after style. The number of context lines is set by *n* which "
"defaults to three."
msgstr ""
#: ../Doc/library/difflib.rst:156
msgid ""
"By default, the diff control lines (those with ``***`` or ``---``) are "
"created with a trailing newline. This is helpful so that inputs created "
"from :func:`io.IOBase.readlines` result in diffs that are suitable for "
"use with :func:`io.IOBase.writelines` since both the inputs and outputs "
"have trailing newlines."
msgstr ""
#: ../Doc/library/difflib.rst:162 ../Doc/library/difflib.rst:293
msgid ""
"For inputs that do not have trailing newlines, set the *lineterm* "
"argument to ``\"\"`` so that the output will be uniformly newline free."
msgstr ""
#: ../Doc/library/difflib.rst:165 ../Doc/library/difflib.rst:296
msgid ""
"The context diff format normally has a header for filenames and "
"modification times. Any or all of these may be specified using strings "
"for *fromfile*, *tofile*, *fromfiledate*, and *tofiledate*. The "
"modification times are normally expressed in the ISO 8601 format. If not "
"specified, the strings default to blanks."
msgstr ""
#: ../Doc/library/difflib.rst:188 ../Doc/library/difflib.rst:317
msgid "See :ref:`difflib-interface` for a more detailed example."
msgstr ""
#: ../Doc/library/difflib.rst:193
msgid ""
"Return a list of the best \"good enough\" matches. *word* is a sequence "
"for which close matches are desired (typically a string), and "
"*possibilities* is a list of sequences against which to match *word* "
"(typically a list of strings)."
msgstr ""
#: ../Doc/library/difflib.rst:197
msgid ""
"Optional argument *n* (default ``3``) is the maximum number of close "
"matches to return; *n* must be greater than ``0``."
msgstr ""
#: ../Doc/library/difflib.rst:200
msgid ""
"Optional argument *cutoff* (default ``0.6``) is a float in the range [0, "
"1]. Possibilities that don't score at least that similar to *word* are "
"ignored."
msgstr ""
#: ../Doc/library/difflib.rst:203
msgid ""
"The best (no more than *n*) matches among the possibilities are returned "
"in a list, sorted by similarity score, most similar first."
msgstr ""
#: ../Doc/library/difflib.rst:219
msgid ""
"Compare *a* and *b* (lists of strings); return a :class:`Differ`\\ -style"
" delta (a :term:`generator` generating the delta lines)."
msgstr ""
#: ../Doc/library/difflib.rst:222
msgid ""
"Optional keyword parameters *linejunk* and *charjunk* are filtering "
"functions (or ``None``):"
msgstr ""
#: ../Doc/library/difflib.rst:225
msgid ""
"*linejunk*: A function that accepts a single string argument, and returns"
" true if the string is junk, or false if not. The default is ``None``. "
"There is also a module-level function :func:`IS_LINE_JUNK`, which filters"
" out lines without visible characters, except for at most one pound "
"character (``'#'``) -- however the underlying :class:`SequenceMatcher` "
"class does a dynamic analysis of which lines are so frequent as to "
"constitute noise, and this usually works better than using this function."
msgstr ""
#: ../Doc/library/difflib.rst:233
msgid ""
"*charjunk*: A function that accepts a character (a string of length 1), "
"and returns if the character is junk, or false if not. The default is "
"module-level function :func:`IS_CHARACTER_JUNK`, which filters out "
"whitespace characters (a blank or tab; it's a bad idea to include newline"
" in this!)."
msgstr ""
#: ../Doc/library/difflib.rst:238
msgid ""
":file:`Tools/scripts/ndiff.py` is a command-line front-end to this "
"function."
msgstr ""
#: ../Doc/library/difflib.rst:256
msgid "Return one of the two sequences that generated a delta."
msgstr ""
#: ../Doc/library/difflib.rst:258
msgid ""
"Given a *sequence* produced by :meth:`Differ.compare` or :func:`ndiff`, "
"extract lines originating from file 1 or 2 (parameter *which*), stripping"
" off line prefixes."
msgstr ""
#: ../Doc/library/difflib.rst:262
msgid "Example:"
msgstr ""
#: ../Doc/library/difflib.rst:279
msgid ""
"Compare *a* and *b* (lists of strings); return a delta (a "
":term:`generator` generating the delta lines) in unified diff format."
msgstr ""
#: ../Doc/library/difflib.rst:282
msgid ""
"Unified diffs are a compact way of showing just the lines that have "
"changed plus a few lines of context. The changes are shown in an inline "
"style (instead of separate before/after blocks). The number of context "
"lines is set by *n* which defaults to three."
msgstr ""
#: ../Doc/library/difflib.rst:287
msgid ""
"By default, the diff control lines (those with ``---``, ``+++``, or "
"``@@``) are created with a trailing newline. This is helpful so that "
"inputs created from :func:`io.IOBase.readlines` result in diffs that are "
"suitable for use with :func:`io.IOBase.writelines` since both the inputs "
"and outputs have trailing newlines."
msgstr ""
#: ../Doc/library/difflib.rst:321
msgid ""
"Compare *a* and *b* (lists of bytes objects) using *dfunc*; yield a "
"sequence of delta lines (also bytes) in the format returned by *dfunc*. "
"*dfunc* must be a callable, typically either :func:`unified_diff` or "
":func:`context_diff`."
msgstr ""
#: ../Doc/library/difflib.rst:326
msgid ""
"Allows you to compare data with unknown or inconsistent encoding. All "
"inputs except *n* must be bytes objects, not str. Works by losslessly "
"converting all inputs (except *n*) to str, and calling ``dfunc(a, b, "
"fromfile, tofile, fromfiledate, tofiledate, n, lineterm)``. The output of"
" *dfunc* is then converted back to bytes, so the delta lines that you "
"receive have the same unknown/inconsistent encodings as *a* and *b*."
msgstr ""
#: ../Doc/library/difflib.rst:337
msgid ""
"Return true for ignorable lines. The line *line* is ignorable if *line* "
"is blank or contains a single ``'#'``, otherwise it is not ignorable. "
"Used as a default for parameter *linejunk* in :func:`ndiff` in older "
"versions."
msgstr ""
#: ../Doc/library/difflib.rst:344
msgid ""
"Return true for ignorable characters. The character *ch* is ignorable if"
" *ch* is a space or tab, otherwise it is not ignorable. Used as a "
"default for parameter *charjunk* in :func:`ndiff`."
msgstr ""
#: ../Doc/library/difflib.rst:352
msgid ""
"`Pattern Matching: The Gestalt Approach `_"
msgstr ""
#: ../Doc/library/difflib.rst:352
msgid ""
"Discussion of a similar algorithm by John W. Ratcliff and D. E. Metzener."
" This was published in `Dr. Dobb's Journal `_ in"
" July, 1988."
msgstr ""
#: ../Doc/library/difflib.rst:359
msgid "SequenceMatcher Objects"
msgstr ""
#: ../Doc/library/difflib.rst:361
msgid "The :class:`SequenceMatcher` class has this constructor:"
msgstr ""
#: ../Doc/library/difflib.rst:366
msgid ""
"Optional argument *isjunk* must be ``None`` (the default) or a one-"
"argument function that takes a sequence element and returns true if and "
"only if the element is \"junk\" and should be ignored. Passing ``None`` "
"for *isjunk* is equivalent to passing ``lambda x: 0``; in other words, no"
" elements are ignored. For example, pass::"
msgstr ""
#: ../Doc/library/difflib.rst:374
msgid ""
"if you're comparing lines as sequences of characters, and don't want to "
"synch up on blanks or hard tabs."
msgstr ""
#: ../Doc/library/difflib.rst:377
msgid ""
"The optional arguments *a* and *b* are sequences to be compared; both "
"default to empty strings. The elements of both sequences must be "
":term:`hashable`."
msgstr ""
#: ../Doc/library/difflib.rst:380
msgid ""
"The optional argument *autojunk* can be used to disable the automatic "
"junk heuristic."
msgstr ""
#: ../Doc/library/difflib.rst:386
msgid ""
"SequenceMatcher objects get three data attributes: *bjunk* is the set of "
"elements of *b* for which *isjunk* is ``True``; *bpopular* is the set of "
"non-junk elements considered popular by the heuristic (if it is not "
"disabled); *b2j* is a dict mapping the remaining elements of *b* to a "
"list of positions where they occur. All three are reset whenever *b* is "
"reset with :meth:`set_seqs` or :meth:`set_seq2`."
msgstr ""
#: ../Doc/library/difflib.rst:393
msgid "The *bjunk* and *bpopular* attributes."
msgstr ""
#: ../Doc/library/difflib.rst:396
msgid ":class:`SequenceMatcher` objects have the following methods:"
msgstr ""
#: ../Doc/library/difflib.rst:400
msgid "Set the two sequences to be compared."
msgstr ""
#: ../Doc/library/difflib.rst:402
msgid ""
":class:`SequenceMatcher` computes and caches detailed information about "
"the second sequence, so if you want to compare one sequence against many "
"sequences, use :meth:`set_seq2` to set the commonly used sequence once "
"and call :meth:`set_seq1` repeatedly, once for each of the other "
"sequences."
msgstr ""
#: ../Doc/library/difflib.rst:410
msgid ""
"Set the first sequence to be compared. The second sequence to be "
"compared is not changed."
msgstr ""
#: ../Doc/library/difflib.rst:416
msgid ""
"Set the second sequence to be compared. The first sequence to be "
"compared is not changed."
msgstr ""
#: ../Doc/library/difflib.rst:422
msgid "Find longest matching block in ``a[alo:ahi]`` and ``b[blo:bhi]``."
msgstr ""
#: ../Doc/library/difflib.rst:424
msgid ""
"If *isjunk* was omitted or ``None``, :meth:`find_longest_match` returns "
"``(i, j, k)`` such that ``a[i:i+k]`` is equal to ``b[j:j+k]``, where "
"``alo