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# Copyright (C) 2001 Python Software Foundation
# This file is distributed under the same license as the Python package.
#
# Translators:
msgid ""
msgstr ""
"Project-Id-Version: Python 3.14\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2026-08-25 00:10+0000\n"
"PO-Revision-Date: 2016-11-19 00:29+0000\n"
"Last-Translator: Liang-Bo Wang <me@liang2.tw>\n"
"Language-Team: Chinese - TAIWAN (https://github.com/python/python-docs-zh-"
"tw)\n"
"Language: zh_TW\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=1; plural=0;\n"
#: ../../library/difflib.rst:2
msgid ":mod:`!difflib` --- Helpers for computing deltas"
msgstr ":mod:`!difflib` --- 計算差異的輔助工具"
#: ../../library/difflib.rst:11
msgid "**Source code:** :source:`Lib/difflib.py`"
msgstr "**原始碼：**\\ :source:`Lib/difflib.py`"
#: ../../library/difflib.rst:20
msgid ""
"This module provides classes and functions for comparing sequences. Most of "
"them compare sequences of text lines (for example lists of strings, or :term:"
"`file objects <file object>`) and produce :dfn:`diffs` -- reports on the "
"differences. Diffs can be produced in various formats, including HTML and "
"context and unified diffs -- formats produced by tools like :manpage:`diff "
"<diff(1)>` and :manpage:`git diff <git-diff(1)>`."
msgstr ""
#: ../../library/difflib.rst:28
msgid ""
"Comparisons are done using a matching algorithm implemented in :class:"
"`SequenceMatcher` -- a flexible class for comparing pairs of sequences of "
"any type, not just text, so long as the sequence elements are :term:"
"`hashable`."
msgstr ""
#: ../../library/difflib.rst:37
msgid "Junk heuristic"
msgstr ""
#: ../../library/difflib.rst:39
msgid ""
":mod:`!difflib` uses a :dfn:`junk` heuristic: some items are deemed to be :"
"dfn:`junk`, and ignored when searching for similarities. Ideally, these are "
"uninteresting or common items, such as blank lines or whitespace."
msgstr ""
#: ../../library/difflib.rst:44
msgid ""
"This heuristic can speed the algorithm up (because it reduces the number of "
"possible combinations) and it can produce results that are more "
"understandable for humans (typically breaking on whitespace). But it can "
"also cause pathological cases:"
msgstr ""
#: ../../library/difflib.rst:49
msgid ""
"Inappropriately chosen junk items can cause an unexpectedly **large** (but "
"still correct) result."
msgstr ""
#: ../../library/difflib.rst:51
msgid ""
"The default heuristic is **asymmetric**: only the second sequence is "
"inspected when determining what is considered junk, so comparing A to B can "
"give different results than comparing B to A and reversing the result."
msgstr ""
#: ../../library/difflib.rst:55
msgid ""
"By default, if the second input sequence is at least 200 items long, items "
"that account for more than 1% it are considered *junk*."
msgstr ""
#: ../../library/difflib.rst:58
msgid ""
"Depending on your data, you should consider turning this heuristic off "
"(setting :class:`~difflib.SequenceMatcher`'s *autojunk* argument to "
"``False``) or tuning it (using the *isjunk* argument, perhaps to one of the :"
"ref:`predefined functions <difflib-isjunk-functions>`)."
msgstr ""
#: ../../library/difflib.rst:65
msgid "The :mod:`!difflib` algorithm"
msgstr ""
#: ../../library/difflib.rst:67
msgid ""
"The algorithm used in :class:`SequenceMatcher` predates, and is a little "
"fancier than, an algorithm published in the late 1980s by Ratcliff and "
"Obershelp under the hyperbolic name \"gestalt pattern matching.\" The idea "
"is to find the longest contiguous subsequence common to both inputs, then "
"recursively handle the pieces of the sequences to the left and to the right "
"of the matching subsequence."
msgstr ""
#: ../../library/difflib.rst:76
msgid ""
"`Pattern Matching: The Gestalt Approach <https://jacobfilipp.com/DrDobbs/"
"articles/DDJ/1988/8807/8807c/8807c.htm>`_"
msgstr ""
#: ../../library/difflib.rst:77
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 ""
#: ../../library/difflib.rst:80
msgid ""
"As an extension to the Ratcliff and Obershelp algorithm, :mod:`!difflib` "
"searches for the longest *junk-free* contiguous subsequence. See the :ref:"
"`difflib-junk` section for details."
msgstr ""
#: ../../library/difflib.rst:84
msgid "Timing"
msgstr ""
#: ../../library/difflib.rst:86
msgid ""
"The basic Ratcliff-Obershelp algorithm is cubic time in the worst case and "
"quadratic time in the expected case. :mod:`difflib`'s algorithm 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 ""
#: ../../library/difflib.rst:97
msgid "Diff generation"
msgstr ""
#: ../../library/difflib.rst:103
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 ""
#: ../../library/difflib.rst:108
msgid "Each line of a :class:`Differ` delta begins with a two-letter code:"
msgstr ""
#: ../../library/difflib.rst:111
msgid "Code"
msgstr "程式碼"
#: ../../library/difflib.rst:111 ../../library/difflib.rst:580
msgid "Meaning"
msgstr "含義"
#: ../../library/difflib.rst:113
msgid "``'- '``"
msgstr "``'- '``"
#: ../../library/difflib.rst:113
msgid "line unique to sequence 1"
msgstr ""
#: ../../library/difflib.rst:115
msgid "``'+ '``"
msgstr "``'+ '``"
#: ../../library/difflib.rst:115
msgid "line unique to sequence 2"
msgstr ""
#: ../../library/difflib.rst:117
msgid "``' '``"
msgstr "``' '``"
#: ../../library/difflib.rst:117
msgid "line common to both sequences"
msgstr ""
#: ../../library/difflib.rst:119
msgid "``'? '``"
msgstr "``'? '``"
#: ../../library/difflib.rst:119
msgid "line not present in either input sequence"
msgstr ""
#: ../../library/difflib.rst:122
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 whitespace characters, such as spaces, "
"tabs or line breaks."
msgstr ""
#: ../../library/difflib.rst:126
msgid ""
"Note that :class:`Differ`\\ -generated deltas make no claim to be "
"**minimal** diffs. To the contrary, minimal diffs are often counter-"
"intuitive for humans, because they synch up anywhere possible, sometimes at "
"accidental matches 100 pages apart. Restricting synch points to contiguous "
"matches preserves some notion of locality, at the occasional cost of "
"producing a longer diff."
msgstr ""
#: ../../library/difflib.rst:133
msgid "The :class:`Differ` class has this constructor:"
msgstr ":class:`Differ` 類別有這個建構函式："
#: ../../library/difflib.rst:137
msgid ""
"Optional keyword parameters *linejunk* and *charjunk* are for filter "
"functions (or ``None``):"
msgstr ""
#: ../../library/difflib.rst:140
msgid ""
"*linejunk*: A function that accepts a single string argument, and returns "
"true if the string is junk. The default is ``None``, meaning that no line "
"is considered junk."
msgstr ""
#: ../../library/difflib.rst:144
msgid ""
"*charjunk*: A function that accepts a single character argument (a string of "
"length 1), and returns true if the character is junk. The default is "
"``None``, meaning that no character is considered junk."
msgstr ""
#: ../../library/difflib.rst:148
msgid ""
"These junk-filtering functions speed up matching to find differences and do "
"not cause any differing lines or characters to be ignored. Read the "
"description of the :meth:`~SequenceMatcher.find_longest_match` method's "
"*isjunk* parameter for an explanation."
msgstr ""
#: ../../library/difflib.rst:154
msgid ""
":class:`Differ` objects are used (deltas generated) via a single method:"
msgstr ""
#: ../../library/difflib.rst:159
msgid ""
"Compare two sequences of lines, and generate the delta (a sequence of lines)."
msgstr ""
#: ../../library/difflib.rst:161
msgid ""
"Each sequence must contain individual single-line strings ending with "
"newlines. Such sequences can be obtained from the :meth:`~io.IOBase."
"readlines` method of file-like objects. The generated delta also consists "
"of newline-terminated strings, ready to be printed as-is via the :meth:`~io."
"IOBase.writelines` method of a file-like object."
msgstr ""
#: ../../library/difflib.rst:170
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 ""
#: ../../library/difflib.rst:177
msgid ""
"The trailing newlines get stripped before the diff, so the result can be "
"incomplete. See :gh:`71896` for details."
msgstr ""
#: ../../library/difflib.rst:180
msgid "The constructor for this class is:"
msgstr ""
#: ../../library/difflib.rst:185
msgid "Initializes instance of :class:`HtmlDiff`."
msgstr ""
#: ../../library/difflib.rst:187
msgid ""
"*tabsize* is an optional keyword argument to specify tab stop spacing and "
"defaults to ``8``."
msgstr ""
#: ../../library/difflib.rst:190
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 ""
#: ../../library/difflib.rst:193
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 ""
#: ../../library/difflib.rst:197
msgid "The following methods are public:"
msgstr ""
#: ../../library/difflib.rst:202
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 ""
#: ../../library/difflib.rst:206
msgid ""
"*fromdesc* and *todesc* are optional keyword arguments to specify from/to "
"file column header strings (both default to an empty string)."
msgstr ""
#: ../../library/difflib.rst:209
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 ""
#: ../../library/difflib.rst:220
msgid ""
"*fromdesc* and *todesc* are interpreted as unescaped HTML and should be "
"properly escaped while receiving input from untrusted sources."
msgstr ""
#: ../../library/difflib.rst:223
msgid ""
"*charset* keyword-only argument was added. The default charset of HTML "
"document changed from ``'ISO-8859-1'`` to ``'utf-8'``."
msgstr ""
#: ../../library/difflib.rst:229
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 ""
#: ../../library/difflib.rst:233
msgid ""
"The arguments for this method are the same as those for the :meth:"
"`make_file` method."
msgstr ""
#: ../../library/difflib.rst:240
msgid ""
"Compare *a* and *b* (lists of strings); return a delta (a :term:`generator` "
"generating the delta lines) in context diff format."
msgstr ""
#: ../../library/difflib.rst:243
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 ""
#: ../../library/difflib.rst:247
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 ""
#: ../../library/difflib.rst:253 ../../library/difflib.rst:385
msgid ""
"For inputs that do not have trailing newlines, set the *lineterm* argument "
"to ``\"\"`` so that the output will be uniformly newline free."
msgstr ""
#: ../../library/difflib.rst:256
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 ""
#: ../../library/difflib.rst:282 ../../library/difflib.rst:408
msgid "See :ref:`difflib-interface` for a more detailed example."
msgstr "一個更詳盡的範例請見 :ref:`difflib-interface`。"
#: ../../library/difflib.rst:287
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 ""
#: ../../library/difflib.rst:291
msgid ""
"Optional argument *n* (default ``3``) is the maximum number of close matches "
"to return; *n* must be greater than ``0``."
msgstr ""
#: ../../library/difflib.rst:294
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 ""
#: ../../library/difflib.rst:297
msgid ""
"The best (no more than *n*) matches among the possibilities are returned in "
"a list, sorted by similarity score, most similar first."
msgstr ""
#: ../../library/difflib.rst:313
msgid ""
"Compare *a* and *b* (lists of strings); return a :class:`Differ`\\ -style "
"delta (a :term:`generator` generating the delta lines)."
msgstr ""
#: ../../library/difflib.rst:316
msgid ""
"Optional keyword parameters *linejunk* and *charjunk* are filtering "
"functions (or ``None``):"
msgstr ""
#: ../../library/difflib.rst:319
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 hash 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 ""
#: ../../library/difflib.rst:327
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 ""
#: ../../library/difflib.rst:348
msgid "Return one of the two sequences that generated a delta."
msgstr ""
#: ../../library/difflib.rst:350
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 ""
#: ../../library/difflib.rst:354
msgid "Example:"
msgstr "範例："
#: ../../library/difflib.rst:371
msgid ""
"Compare *a* and *b* (lists of strings); return a delta (a :term:`generator` "
"generating the delta lines) in unified diff format."
msgstr ""
#: ../../library/difflib.rst:374
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 ""
#: ../../library/difflib.rst:379
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 ""
#: ../../library/difflib.rst:388
msgid ""
"The unified 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 ""
#: ../../library/difflib.rst:412
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 ""
#: ../../library/difflib.rst:417
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 ""
#: ../../library/difflib.rst:430
msgid "Junk definition functions"
msgstr ""
#: ../../library/difflib.rst:434
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 ""
#: ../../library/difflib.rst:441
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 ""
#: ../../library/difflib.rst:449
msgid "SequenceMatcher objects"
msgstr "SequenceMatcher 物件"
#: ../../library/difflib.rst:453
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 ""
#: ../../library/difflib.rst:459
msgid "lambda x: x in \" \\t\""
msgstr "lambda x: x in \" \\t\""
#: ../../library/difflib.rst:461
msgid ""
"if you're comparing lines as sequences of characters, and don't want to "
"synch up on blanks or hard tabs."
msgstr ""
#: ../../library/difflib.rst:464
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 ""
#: ../../library/difflib.rst:467
msgid ""
"The optional argument *autojunk* can be used to disable the automatic junk "
"heuristic."
msgstr ""
#: ../../library/difflib.rst:470
msgid "Added the *autojunk* parameter."
msgstr "新增 *autojunk* 參數。"
#: ../../library/difflib.rst:473
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 ""
#: ../../library/difflib.rst:480
msgid "The *bjunk* and *bpopular* attributes."
msgstr ""
#: ../../library/difflib.rst:483
msgid ":class:`SequenceMatcher` objects have the following methods:"
msgstr ":class:`SequenceMatcher` 物件有以下方法："
#: ../../library/difflib.rst:487
msgid "Set the two sequences to be compared."
msgstr ""
#: ../../library/difflib.rst:489
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 ""
#: ../../library/difflib.rst:497
msgid ""
"Set the first sequence to be compared. The second sequence to be compared "
"is not changed."
msgstr ""
#: ../../library/difflib.rst:503
msgid ""
"Set the second sequence to be compared. The first sequence to be compared "
"is not changed."
msgstr ""
#: ../../library/difflib.rst:509
msgid "Find longest matching block in ``a[alo:ahi]`` and ``b[blo:bhi]``."
msgstr ""
#: ../../library/difflib.rst:511
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 "
"<= i <= i+k <= ahi`` and ``blo <= j <= j+k <= bhi``. For all ``(i', j', "
"k')`` meeting those conditions, the additional conditions ``k >= k'``, ``i "
"<= i'``, and if ``i == i'``, ``j <= j'`` are also met. In other words, of "
"all maximal matching blocks, return one that starts earliest in *a*, and of "
"all those maximal matching blocks that start earliest in *a*, return the one "
"that starts earliest in *b*."
msgstr ""
#: ../../library/difflib.rst:524
msgid ""
"If *isjunk* was provided, first the longest matching block is determined as "
"above, but with the additional restriction that no junk element appears in "
"the block. Then that block is extended as far as possible by matching "
"(only) junk elements on both sides. So the resulting block never matches on "
"junk except as identical junk happens to be adjacent to an interesting match."
msgstr ""
#: ../../library/difflib.rst:531
msgid ""
"Here's the same example as before, but considering blanks to be junk. That "
"prevents ``' abcd'`` from matching the ``' abcd'`` at the tail end of the "
"second sequence directly. Instead only the ``'abcd'`` can match, and "
"matches the leftmost ``'abcd'`` in the second sequence:"
msgstr ""
#: ../../library/difflib.rst:540
msgid "If no blocks match, this returns ``(alo, blo, 0)``."
msgstr ""
#: ../../library/difflib.rst:542
msgid "This method returns a :term:`named tuple` ``Match(a, b, size)``."
msgstr ""
#: ../../library/difflib.rst:544
msgid "Added default arguments."
msgstr "新增預設引數。"
#: ../../library/difflib.rst:550
msgid ""
"Return list of triples describing non-overlapping matching subsequences. "
"Each triple is of the form ``(i, j, n)``, and means that ``a[i:i+n] == b[j:"
"j+n]``. The triples are monotonically increasing in *i* and *j*."
msgstr ""
#: ../../library/difflib.rst:555
msgid ""
"The last triple is a dummy, and has the value ``(len(a), len(b), 0)``. It "
"is the only triple with ``n == 0``. If ``(i, j, n)`` and ``(i', j', n')`` "
"are adjacent triples in the list, and the second is not the last triple in "
"the list, then ``i+n < i'`` or ``j+n < j'``; in other words, adjacent "
"triples always describe non-adjacent equal blocks."
msgstr ""
#: ../../library/difflib.rst:563
msgid ""
">>> s = SequenceMatcher(None, \"abxcd\", \"abcd\")\n"
">>> s.get_matching_blocks()\n"
"[Match(a=0, b=0, size=2), Match(a=3, b=2, size=2), Match(a=5, b=4, size=0)]"
msgstr ""
">>> s = SequenceMatcher(None, \"abxcd\", \"abcd\")\n"
">>> s.get_matching_blocks()\n"
"[Match(a=0, b=0, size=2), Match(a=3, b=2, size=2), Match(a=5, b=4, size=0)]"
#: ../../library/difflib.rst:572
msgid ""
"Return list of 5-tuples describing how to turn *a* into *b*. Each tuple is "
"of the form ``(tag, i1, i2, j1, j2)``. The first tuple has ``i1 == j1 == "
"0``, and remaining tuples have *i1* equal to the *i2* from the preceding "
"tuple, and, likewise, *j1* equal to the previous *j2*."
msgstr ""
#: ../../library/difflib.rst:577
msgid "The *tag* values are strings, with these meanings:"
msgstr ""
#: ../../library/difflib.rst:580
msgid "Value"
msgstr ""
#: ../../library/difflib.rst:582
msgid "``'replace'``"
msgstr "``'replace'``"
#: ../../library/difflib.rst:582
msgid "``a[i1:i2]`` should be replaced by ``b[j1:j2]``."
msgstr "``a[i1:i2]`` 應該被替換為 ``b[j1:j2]``。"
#: ../../library/difflib.rst:585
msgid "``'delete'``"
msgstr "``'delete'``"
#: ../../library/difflib.rst:585
msgid "``a[i1:i2]`` should be deleted. Note that ``j1 == j2`` in this case."
msgstr "``a[i1:i2]`` 應該被刪除。請注意，在這種情況下 ``j1 == j2``。"
#: ../../library/difflib.rst:588
msgid "``'insert'``"
msgstr "``'insert'``"
#: ../../library/difflib.rst:588
msgid ""
"``b[j1:j2]`` should be inserted at ``a[i1:i1]``. Note that ``i1 == i2`` in "
"this case."
msgstr ""
#: ../../library/difflib.rst:592
msgid "``'equal'``"
msgstr "``'equal'``"
#: ../../library/difflib.rst:592
msgid "``a[i1:i2] == b[j1:j2]`` (the sub-sequences are equal)."
msgstr ""
#: ../../library/difflib.rst:596
msgid "For example::"
msgstr "舉例來說： ::"
#: ../../library/difflib.rst:598
msgid ""
">>> a = \"qabxcd\"\n"
">>> b = \"abycdf\"\n"
">>> s = SequenceMatcher(None, a, b)\n"
">>> for tag, i1, i2, j1, j2 in s.get_opcodes():\n"
"... print('{:7} a[{}:{}] --> b[{}:{}] {!r:>8} --> {!r}'.format(\n"
"... tag, i1, i2, j1, j2, a[i1:i2], b[j1:j2]))\n"
"delete a[0:1] --> b[0:0] 'q' --> ''\n"
"equal a[1:3] --> b[0:2] 'ab' --> 'ab'\n"
"replace a[3:4] --> b[2:3] 'x' --> 'y'\n"
"equal a[4:6] --> b[3:5] 'cd' --> 'cd'\n"
"insert a[6:6] --> b[5:6] '' --> 'f'"
msgstr ""
">>> a = \"qabxcd\"\n"
">>> b = \"abycdf\"\n"
">>> s = SequenceMatcher(None, a, b)\n"
">>> for tag, i1, i2, j1, j2 in s.get_opcodes():\n"
"... print('{:7} a[{}:{}] --> b[{}:{}] {!r:>8} --> {!r}'.format(\n"
"... tag, i1, i2, j1, j2, a[i1:i2], b[j1:j2]))\n"
"delete a[0:1] --> b[0:0] 'q' --> ''\n"
"equal a[1:3] --> b[0:2] 'ab' --> 'ab'\n"
"replace a[3:4] --> b[2:3] 'x' --> 'y'\n"
"equal a[4:6] --> b[3:5] 'cd' --> 'cd'\n"
"insert a[6:6] --> b[5:6] '' --> 'f'"
#: ../../library/difflib.rst:613
msgid "Return a :term:`generator` of groups with up to *n* lines of context."
msgstr ""
#: ../../library/difflib.rst:615
msgid ""
"Starting with the groups returned by :meth:`get_opcodes`, this method splits "
"out smaller change clusters and eliminates intervening ranges which have no "
"changes."
msgstr ""
#: ../../library/difflib.rst:619
msgid "The groups are returned in the same format as :meth:`get_opcodes`."
msgstr ""
#: ../../library/difflib.rst:624
msgid ""
"Return a measure of the sequences' similarity as a float in the range [0, 1]."
msgstr ""
#: ../../library/difflib.rst:627
msgid ""
"Where T is the total number of elements in both sequences, and M is the "
"number of matches, this is 2.0\\*M / T. Note that this is ``1.0`` if the "
"sequences are identical, and ``0.0`` if they have nothing in common."
msgstr ""
#: ../../library/difflib.rst:631
msgid ""
"This is expensive to compute if :meth:`get_matching_blocks` or :meth:"
"`get_opcodes` hasn't already been called, in which case you may want to try :"
"meth:`quick_ratio` or :meth:`real_quick_ratio` first to get an upper bound."
msgstr ""
#: ../../library/difflib.rst:639
msgid "Return an upper bound on :meth:`ratio` relatively quickly."
msgstr ""
#: ../../library/difflib.rst:644
msgid "Return an upper bound on :meth:`ratio` very quickly."
msgstr ""
#: ../../library/difflib.rst:647
msgid ""
"The three methods that return the ratio of matching to total characters can "
"give different results due to differing levels of approximation, although :"
"meth:`~SequenceMatcher.quick_ratio` and :meth:`~SequenceMatcher."
"real_quick_ratio` are always at least as large as :meth:`~SequenceMatcher."
"ratio`:"
msgstr ""
#: ../../library/difflib.rst:662
msgid "Examples"
msgstr "範例"
#: ../../library/difflib.rst:667
msgid "SequenceMatcher examples"
msgstr "SequenceMatcher 範例"
#: ../../library/difflib.rst:669
msgid "This example compares two strings, considering blanks to be \"junk\":"
msgstr ""
#: ../../library/difflib.rst:675
msgid ""
":meth:`~SequenceMatcher.ratio` returns a float in [0, 1], measuring the "
"similarity of the sequences. As a rule of thumb, a :meth:`~SequenceMatcher."
"ratio` value over 0.6 means the sequences are close matches:"
msgstr ""
#: ../../library/difflib.rst:682
msgid ""
"If you're only interested in where the sequences match, :meth:"
"`~SequenceMatcher.get_matching_blocks` is handy:"
msgstr ""
#: ../../library/difflib.rst:691
msgid ""
"Note that the last tuple returned by :meth:`~SequenceMatcher."
"get_matching_blocks` is always a dummy, ``(len(a), len(b), 0)``, and this is "
"the only case in which the last tuple element (number of elements matched) "
"is ``0``."
msgstr ""
#: ../../library/difflib.rst:695
msgid ""
"If you want to know how to change the first sequence into the second, use :"
"meth:`~SequenceMatcher.get_opcodes`:"
msgstr ""
#: ../../library/difflib.rst:706
msgid ""
"The :func:`get_close_matches` function in this module which shows how simple "
"code building on :class:`SequenceMatcher` can be used to do useful work."
msgstr ""
#: ../../library/difflib.rst:710
msgid ""
"`Simple version control recipe <https://code.activestate.com/recipes/576729-"
"simple-version-control/>`_ for a small application built with :class:"
"`SequenceMatcher`."
msgstr ""
#: ../../library/difflib.rst:718
msgid "Differ example"
msgstr "Differ 範例"
#: ../../library/difflib.rst:720
msgid ""
"This example compares two texts. First we set up the texts, sequences of "
"individual single-line strings ending with newlines (such sequences can also "
"be obtained from the :meth:`~io.IOBase.readlines` method of file-like "
"objects):"
msgstr ""
#: ../../library/difflib.rst:739
msgid "Next we instantiate a Differ object:"
msgstr ""
#: ../../library/difflib.rst:743
msgid ""
"Note that when instantiating a :class:`Differ` object we may pass functions "
"to filter out line and character \"junk.\" See the :meth:`Differ` "
"constructor for details."
msgstr ""
#: ../../library/difflib.rst:747
msgid "Finally, we compare the two:"
msgstr ""
#: ../../library/difflib.rst:751
msgid "``result`` is a list of strings, so let's pretty-print it:"
msgstr ""
#: ../../library/difflib.rst:766
msgid "As a single multi-line string it looks like this:"
msgstr ""
#: ../../library/difflib.rst:785
msgid "A command-line interface to difflib"
msgstr "difflib 的命令列介面"
#: ../../library/difflib.rst:787
msgid ""
"This example shows how to use difflib to create a ``diff``-like utility."
msgstr ""
#: ../../library/difflib.rst:789
msgid ""
"\"\"\" Command-line interface to difflib.py providing diffs in four "
"formats:\n"
"\n"
"* ndiff: lists every line and highlights interline changes.\n"
"* context: highlights clusters of changes in a before/after format.\n"
"* unified: highlights clusters of changes in an inline format.\n"
"* html: generates side by side comparison with change highlights.\n"
"\n"
"\"\"\"\n"
"\n"
"import sys, os, difflib, argparse\n"
"import datetime as dt\n"
"\n"
"def file_mtime(path):\n"
" t = dt.datetime.fromtimestamp(os.stat(path).st_mtime,\n"
" dt.timezone.utc)\n"
" return t.astimezone().isoformat()\n"
"\n"
"def main():\n"
"\n"
" parser = argparse.ArgumentParser()\n"
" parser.add_argument('-c', action='store_true', default=False,\n"
" help='Produce a context format diff (default)')\n"
" parser.add_argument('-u', action='store_true', default=False,\n"
" help='Produce a unified format diff')\n"
" parser.add_argument('-m', action='store_true', default=False,\n"
" help='Produce HTML side by side diff '\n"
" '(can use -c and -l in conjunction)')\n"
" parser.add_argument('-n', action='store_true', default=False,\n"
" help='Produce a ndiff format diff')\n"
" parser.add_argument('-l', '--lines', type=int, default=3,\n"
" help='Set number of context lines (default 3)')\n"
" parser.add_argument('fromfile')\n"
" parser.add_argument('tofile')\n"
" options = parser.parse_args()\n"
"\n"
" n = options.lines\n"
" fromfile = options.fromfile\n"
" tofile = options.tofile\n"
"\n"
" fromdate = file_mtime(fromfile)\n"
" todate = file_mtime(tofile)\n"
" with open(fromfile) as ff:\n"
" fromlines = ff.readlines()\n"
" with open(tofile) as tf:\n"
" tolines = tf.readlines()\n"
"\n"
" if options.u:\n"
" diff = difflib.unified_diff(fromlines, tolines, fromfile, tofile, "
"fromdate, todate, n=n)\n"
" elif options.n:\n"
" diff = difflib.ndiff(fromlines, tolines)\n"
" elif options.m:\n"
" diff = difflib.HtmlDiff().make_file(fromlines,tolines,fromfile,"
"tofile,context=options.c,numlines=n)\n"
" else:\n"
" diff = difflib.context_diff(fromlines, tolines, fromfile, tofile, "
"fromdate, todate, n=n)\n"
"\n"
" sys.stdout.writelines(diff)\n"
"\n"
"if __name__ == '__main__':\n"
" main()\n"
msgstr ""
"\"\"\" Command-line interface to difflib.py providing diffs in four "
"formats:\n"
"\n"
"* ndiff: lists every line and highlights interline changes.\n"
"* context: highlights clusters of changes in a before/after format.\n"
"* unified: highlights clusters of changes in an inline format.\n"
"* html: generates side by side comparison with change highlights.\n"
"\n"
"\"\"\"\n"
"\n"
"import sys, os, difflib, argparse\n"
"import datetime as dt\n"
"\n"
"def file_mtime(path):\n"
" t = dt.datetime.fromtimestamp(os.stat(path).st_mtime,\n"