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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:387
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:494
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:131
msgid ""
"*fromdesc* and *todesc* are interpreted as unescaped HTML and should be "
"properly escaped while receiving input from untrusted sources."
msgstr ""
#: ../Doc/library/difflib.rst:134
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:140
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:144
msgid ""
"The arguments for this method are the same as those for the :meth:"
"`make_file` method."
msgstr ""
#: ../Doc/library/difflib.rst:147
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:153
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:156
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:160
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:166 ../Doc/library/difflib.rst:297
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:169 ../Doc/library/difflib.rst:300
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:192 ../Doc/library/difflib.rst:321
msgid "See :ref:`difflib-interface` for a more detailed example."
msgstr ""
#: ../Doc/library/difflib.rst:197
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:201
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:204
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:207
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:223
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:226
msgid ""
"Optional keyword parameters *linejunk* and *charjunk* are filtering "
"functions (or ``None``):"
msgstr ""
#: ../Doc/library/difflib.rst:229
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:237
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:242
msgid ""
":file:`Tools/scripts/ndiff.py` is a command-line front-end to this function."
msgstr ""
#: ../Doc/library/difflib.rst:260
msgid "Return one of the two sequences that generated a delta."
msgstr ""
#: ../Doc/library/difflib.rst:262
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:266
msgid "Example:"
msgstr ""
#: ../Doc/library/difflib.rst:283
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:286
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:291
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:325
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:330
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:341
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:348
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:356
msgid ""
"`Pattern Matching: The Gestalt Approach `_"
msgstr ""
#: ../Doc/library/difflib.rst:356
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:363
msgid "SequenceMatcher Objects"
msgstr ""
#: ../Doc/library/difflib.rst:365
msgid "The :class:`SequenceMatcher` class has this constructor:"
msgstr ""
#: ../Doc/library/difflib.rst:370
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: False``; in other words, no elements are "
"ignored. For example, pass::"
msgstr ""
#: ../Doc/library/difflib.rst:378
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:381
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:384
msgid ""
"The optional argument *autojunk* can be used to disable the automatic junk "
"heuristic."
msgstr ""
#: ../Doc/library/difflib.rst:390
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:397
msgid "The *bjunk* and *bpopular* attributes."
msgstr ""
#: ../Doc/library/difflib.rst:400
msgid ":class:`SequenceMatcher` objects have the following methods:"
msgstr ""
#: ../Doc/library/difflib.rst:404
msgid "Set the two sequences to be compared."
msgstr ""
#: ../Doc/library/difflib.rst:406
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:414
msgid ""
"Set the first sequence to be compared. The second sequence to be compared "
"is not changed."
msgstr ""
#: ../Doc/library/difflib.rst:420
msgid ""
"Set the second sequence to be compared. The first sequence to be compared "
"is not changed."
msgstr ""
#: ../Doc/library/difflib.rst:426
msgid "Find longest matching block in ``a[alo:ahi]`` and ``b[blo:bhi]``."
msgstr ""
#: ../Doc/library/difflib.rst:428
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 "
"