forked from M3-Academy/challenge-algorithms-v2.0
600 lines
20 KiB
JavaScript
600 lines
20 KiB
JavaScript
'use strict';
|
|
|
|
Object.defineProperty(exports, '__esModule', {
|
|
value: true
|
|
});
|
|
exports.cleanupSemantic =
|
|
exports.Diff =
|
|
exports.DIFF_INSERT =
|
|
exports.DIFF_EQUAL =
|
|
exports.DIFF_DELETE =
|
|
void 0;
|
|
/**
|
|
* Diff Match and Patch
|
|
* Copyright 2018 The diff-match-patch Authors.
|
|
* https://github.com/google/diff-match-patch
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
/**
|
|
* @fileoverview Computes the difference between two texts to create a patch.
|
|
* Applies the patch onto another text, allowing for errors.
|
|
* @author fraser@google.com (Neil Fraser)
|
|
*/
|
|
|
|
/**
|
|
* CHANGES by pedrottimark to diff_match_patch_uncompressed.ts file:
|
|
*
|
|
* 1. Delete anything not needed to use diff_cleanupSemantic method
|
|
* 2. Convert from prototype properties to var declarations
|
|
* 3. Convert Diff to class from constructor and prototype
|
|
* 4. Add type annotations for arguments and return values
|
|
* 5. Add exports
|
|
*/
|
|
|
|
/**
|
|
* The data structure representing a diff is an array of tuples:
|
|
* [[DIFF_DELETE, 'Hello'], [DIFF_INSERT, 'Goodbye'], [DIFF_EQUAL, ' world.']]
|
|
* which means: delete 'Hello', add 'Goodbye' and keep ' world.'
|
|
*/
|
|
var DIFF_DELETE = -1;
|
|
exports.DIFF_DELETE = DIFF_DELETE;
|
|
var DIFF_INSERT = 1;
|
|
exports.DIFF_INSERT = DIFF_INSERT;
|
|
var DIFF_EQUAL = 0;
|
|
|
|
/**
|
|
* Class representing one diff tuple.
|
|
* Attempts to look like a two-element array (which is what this used to be).
|
|
* @param {number} op Operation, one of: DIFF_DELETE, DIFF_INSERT, DIFF_EQUAL.
|
|
* @param {string} text Text to be deleted, inserted, or retained.
|
|
* @constructor
|
|
*/
|
|
exports.DIFF_EQUAL = DIFF_EQUAL;
|
|
class Diff {
|
|
0;
|
|
1;
|
|
constructor(op, text) {
|
|
this[0] = op;
|
|
this[1] = text;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Determine the common prefix of two strings.
|
|
* @param {string} text1 First string.
|
|
* @param {string} text2 Second string.
|
|
* @return {number} The number of characters common to the start of each
|
|
* string.
|
|
*/
|
|
exports.Diff = Diff;
|
|
var diff_commonPrefix = function (text1, text2) {
|
|
// Quick check for common null cases.
|
|
if (!text1 || !text2 || text1.charAt(0) != text2.charAt(0)) {
|
|
return 0;
|
|
}
|
|
// Binary search.
|
|
// Performance analysis: https://neil.fraser.name/news/2007/10/09/
|
|
var pointermin = 0;
|
|
var pointermax = Math.min(text1.length, text2.length);
|
|
var pointermid = pointermax;
|
|
var pointerstart = 0;
|
|
while (pointermin < pointermid) {
|
|
if (
|
|
text1.substring(pointerstart, pointermid) ==
|
|
text2.substring(pointerstart, pointermid)
|
|
) {
|
|
pointermin = pointermid;
|
|
pointerstart = pointermin;
|
|
} else {
|
|
pointermax = pointermid;
|
|
}
|
|
pointermid = Math.floor((pointermax - pointermin) / 2 + pointermin);
|
|
}
|
|
return pointermid;
|
|
};
|
|
|
|
/**
|
|
* Determine the common suffix of two strings.
|
|
* @param {string} text1 First string.
|
|
* @param {string} text2 Second string.
|
|
* @return {number} The number of characters common to the end of each string.
|
|
*/
|
|
var diff_commonSuffix = function (text1, text2) {
|
|
// Quick check for common null cases.
|
|
if (
|
|
!text1 ||
|
|
!text2 ||
|
|
text1.charAt(text1.length - 1) != text2.charAt(text2.length - 1)
|
|
) {
|
|
return 0;
|
|
}
|
|
// Binary search.
|
|
// Performance analysis: https://neil.fraser.name/news/2007/10/09/
|
|
var pointermin = 0;
|
|
var pointermax = Math.min(text1.length, text2.length);
|
|
var pointermid = pointermax;
|
|
var pointerend = 0;
|
|
while (pointermin < pointermid) {
|
|
if (
|
|
text1.substring(text1.length - pointermid, text1.length - pointerend) ==
|
|
text2.substring(text2.length - pointermid, text2.length - pointerend)
|
|
) {
|
|
pointermin = pointermid;
|
|
pointerend = pointermin;
|
|
} else {
|
|
pointermax = pointermid;
|
|
}
|
|
pointermid = Math.floor((pointermax - pointermin) / 2 + pointermin);
|
|
}
|
|
return pointermid;
|
|
};
|
|
|
|
/**
|
|
* Determine if the suffix of one string is the prefix of another.
|
|
* @param {string} text1 First string.
|
|
* @param {string} text2 Second string.
|
|
* @return {number} The number of characters common to the end of the first
|
|
* string and the start of the second string.
|
|
* @private
|
|
*/
|
|
var diff_commonOverlap_ = function (text1, text2) {
|
|
// Cache the text lengths to prevent multiple calls.
|
|
var text1_length = text1.length;
|
|
var text2_length = text2.length;
|
|
// Eliminate the null case.
|
|
if (text1_length == 0 || text2_length == 0) {
|
|
return 0;
|
|
}
|
|
// Truncate the longer string.
|
|
if (text1_length > text2_length) {
|
|
text1 = text1.substring(text1_length - text2_length);
|
|
} else if (text1_length < text2_length) {
|
|
text2 = text2.substring(0, text1_length);
|
|
}
|
|
var text_length = Math.min(text1_length, text2_length);
|
|
// Quick check for the worst case.
|
|
if (text1 == text2) {
|
|
return text_length;
|
|
}
|
|
|
|
// Start by looking for a single character match
|
|
// and increase length until no match is found.
|
|
// Performance analysis: https://neil.fraser.name/news/2010/11/04/
|
|
var best = 0;
|
|
var length = 1;
|
|
while (true) {
|
|
var pattern = text1.substring(text_length - length);
|
|
var found = text2.indexOf(pattern);
|
|
if (found == -1) {
|
|
return best;
|
|
}
|
|
length += found;
|
|
if (
|
|
found == 0 ||
|
|
text1.substring(text_length - length) == text2.substring(0, length)
|
|
) {
|
|
best = length;
|
|
length++;
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Reduce the number of edits by eliminating semantically trivial equalities.
|
|
* @param {!Array.<!diff_match_patch.Diff>} diffs Array of diff tuples.
|
|
*/
|
|
var diff_cleanupSemantic = function (diffs) {
|
|
var changes = false;
|
|
var equalities = []; // Stack of indices where equalities are found.
|
|
var equalitiesLength = 0; // Keeping our own length var is faster in JS.
|
|
/** @type {?string} */
|
|
var lastEquality = null;
|
|
// Always equal to diffs[equalities[equalitiesLength - 1]][1]
|
|
var pointer = 0; // Index of current position.
|
|
// Number of characters that changed prior to the equality.
|
|
var length_insertions1 = 0;
|
|
var length_deletions1 = 0;
|
|
// Number of characters that changed after the equality.
|
|
var length_insertions2 = 0;
|
|
var length_deletions2 = 0;
|
|
while (pointer < diffs.length) {
|
|
if (diffs[pointer][0] == DIFF_EQUAL) {
|
|
// Equality found.
|
|
equalities[equalitiesLength++] = pointer;
|
|
length_insertions1 = length_insertions2;
|
|
length_deletions1 = length_deletions2;
|
|
length_insertions2 = 0;
|
|
length_deletions2 = 0;
|
|
lastEquality = diffs[pointer][1];
|
|
} else {
|
|
// An insertion or deletion.
|
|
if (diffs[pointer][0] == DIFF_INSERT) {
|
|
length_insertions2 += diffs[pointer][1].length;
|
|
} else {
|
|
length_deletions2 += diffs[pointer][1].length;
|
|
}
|
|
// Eliminate an equality that is smaller or equal to the edits on both
|
|
// sides of it.
|
|
if (
|
|
lastEquality &&
|
|
lastEquality.length <=
|
|
Math.max(length_insertions1, length_deletions1) &&
|
|
lastEquality.length <= Math.max(length_insertions2, length_deletions2)
|
|
) {
|
|
// Duplicate record.
|
|
diffs.splice(
|
|
equalities[equalitiesLength - 1],
|
|
0,
|
|
new Diff(DIFF_DELETE, lastEquality)
|
|
);
|
|
// Change second copy to insert.
|
|
diffs[equalities[equalitiesLength - 1] + 1][0] = DIFF_INSERT;
|
|
// Throw away the equality we just deleted.
|
|
equalitiesLength--;
|
|
// Throw away the previous equality (it needs to be reevaluated).
|
|
equalitiesLength--;
|
|
pointer = equalitiesLength > 0 ? equalities[equalitiesLength - 1] : -1;
|
|
length_insertions1 = 0; // Reset the counters.
|
|
length_deletions1 = 0;
|
|
length_insertions2 = 0;
|
|
length_deletions2 = 0;
|
|
lastEquality = null;
|
|
changes = true;
|
|
}
|
|
}
|
|
pointer++;
|
|
}
|
|
|
|
// Normalize the diff.
|
|
if (changes) {
|
|
diff_cleanupMerge(diffs);
|
|
}
|
|
diff_cleanupSemanticLossless(diffs);
|
|
|
|
// Find any overlaps between deletions and insertions.
|
|
// e.g: <del>abcxxx</del><ins>xxxdef</ins>
|
|
// -> <del>abc</del>xxx<ins>def</ins>
|
|
// e.g: <del>xxxabc</del><ins>defxxx</ins>
|
|
// -> <ins>def</ins>xxx<del>abc</del>
|
|
// Only extract an overlap if it is as big as the edit ahead or behind it.
|
|
pointer = 1;
|
|
while (pointer < diffs.length) {
|
|
if (
|
|
diffs[pointer - 1][0] == DIFF_DELETE &&
|
|
diffs[pointer][0] == DIFF_INSERT
|
|
) {
|
|
var deletion = diffs[pointer - 1][1];
|
|
var insertion = diffs[pointer][1];
|
|
var overlap_length1 = diff_commonOverlap_(deletion, insertion);
|
|
var overlap_length2 = diff_commonOverlap_(insertion, deletion);
|
|
if (overlap_length1 >= overlap_length2) {
|
|
if (
|
|
overlap_length1 >= deletion.length / 2 ||
|
|
overlap_length1 >= insertion.length / 2
|
|
) {
|
|
// Overlap found. Insert an equality and trim the surrounding edits.
|
|
diffs.splice(
|
|
pointer,
|
|
0,
|
|
new Diff(DIFF_EQUAL, insertion.substring(0, overlap_length1))
|
|
);
|
|
diffs[pointer - 1][1] = deletion.substring(
|
|
0,
|
|
deletion.length - overlap_length1
|
|
);
|
|
diffs[pointer + 1][1] = insertion.substring(overlap_length1);
|
|
pointer++;
|
|
}
|
|
} else {
|
|
if (
|
|
overlap_length2 >= deletion.length / 2 ||
|
|
overlap_length2 >= insertion.length / 2
|
|
) {
|
|
// Reverse overlap found.
|
|
// Insert an equality and swap and trim the surrounding edits.
|
|
diffs.splice(
|
|
pointer,
|
|
0,
|
|
new Diff(DIFF_EQUAL, deletion.substring(0, overlap_length2))
|
|
);
|
|
diffs[pointer - 1][0] = DIFF_INSERT;
|
|
diffs[pointer - 1][1] = insertion.substring(
|
|
0,
|
|
insertion.length - overlap_length2
|
|
);
|
|
diffs[pointer + 1][0] = DIFF_DELETE;
|
|
diffs[pointer + 1][1] = deletion.substring(overlap_length2);
|
|
pointer++;
|
|
}
|
|
}
|
|
pointer++;
|
|
}
|
|
pointer++;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Look for single edits surrounded on both sides by equalities
|
|
* which can be shifted sideways to align the edit to a word boundary.
|
|
* e.g: The c<ins>at c</ins>ame. -> The <ins>cat </ins>came.
|
|
* @param {!Array.<!diff_match_patch.Diff>} diffs Array of diff tuples.
|
|
*/
|
|
exports.cleanupSemantic = diff_cleanupSemantic;
|
|
var diff_cleanupSemanticLossless = function (diffs) {
|
|
/**
|
|
* Given two strings, compute a score representing whether the internal
|
|
* boundary falls on logical boundaries.
|
|
* Scores range from 6 (best) to 0 (worst).
|
|
* Closure, but does not reference any external variables.
|
|
* @param {string} one First string.
|
|
* @param {string} two Second string.
|
|
* @return {number} The score.
|
|
* @private
|
|
*/
|
|
function diff_cleanupSemanticScore_(one, two) {
|
|
if (!one || !two) {
|
|
// Edges are the best.
|
|
return 6;
|
|
}
|
|
|
|
// Each port of this function behaves slightly differently due to
|
|
// subtle differences in each language's definition of things like
|
|
// 'whitespace'. Since this function's purpose is largely cosmetic,
|
|
// the choice has been made to use each language's native features
|
|
// rather than force total conformity.
|
|
var char1 = one.charAt(one.length - 1);
|
|
var char2 = two.charAt(0);
|
|
var nonAlphaNumeric1 = char1.match(nonAlphaNumericRegex_);
|
|
var nonAlphaNumeric2 = char2.match(nonAlphaNumericRegex_);
|
|
var whitespace1 = nonAlphaNumeric1 && char1.match(whitespaceRegex_);
|
|
var whitespace2 = nonAlphaNumeric2 && char2.match(whitespaceRegex_);
|
|
var lineBreak1 = whitespace1 && char1.match(linebreakRegex_);
|
|
var lineBreak2 = whitespace2 && char2.match(linebreakRegex_);
|
|
var blankLine1 = lineBreak1 && one.match(blanklineEndRegex_);
|
|
var blankLine2 = lineBreak2 && two.match(blanklineStartRegex_);
|
|
if (blankLine1 || blankLine2) {
|
|
// Five points for blank lines.
|
|
return 5;
|
|
} else if (lineBreak1 || lineBreak2) {
|
|
// Four points for line breaks.
|
|
return 4;
|
|
} else if (nonAlphaNumeric1 && !whitespace1 && whitespace2) {
|
|
// Three points for end of sentences.
|
|
return 3;
|
|
} else if (whitespace1 || whitespace2) {
|
|
// Two points for whitespace.
|
|
return 2;
|
|
} else if (nonAlphaNumeric1 || nonAlphaNumeric2) {
|
|
// One point for non-alphanumeric.
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
var pointer = 1;
|
|
// Intentionally ignore the first and last element (don't need checking).
|
|
while (pointer < diffs.length - 1) {
|
|
if (
|
|
diffs[pointer - 1][0] == DIFF_EQUAL &&
|
|
diffs[pointer + 1][0] == DIFF_EQUAL
|
|
) {
|
|
// This is a single edit surrounded by equalities.
|
|
var equality1 = diffs[pointer - 1][1];
|
|
var edit = diffs[pointer][1];
|
|
var equality2 = diffs[pointer + 1][1];
|
|
|
|
// First, shift the edit as far left as possible.
|
|
var commonOffset = diff_commonSuffix(equality1, edit);
|
|
if (commonOffset) {
|
|
var commonString = edit.substring(edit.length - commonOffset);
|
|
equality1 = equality1.substring(0, equality1.length - commonOffset);
|
|
edit = commonString + edit.substring(0, edit.length - commonOffset);
|
|
equality2 = commonString + equality2;
|
|
}
|
|
|
|
// Second, step character by character right, looking for the best fit.
|
|
var bestEquality1 = equality1;
|
|
var bestEdit = edit;
|
|
var bestEquality2 = equality2;
|
|
var bestScore =
|
|
diff_cleanupSemanticScore_(equality1, edit) +
|
|
diff_cleanupSemanticScore_(edit, equality2);
|
|
while (edit.charAt(0) === equality2.charAt(0)) {
|
|
equality1 += edit.charAt(0);
|
|
edit = edit.substring(1) + equality2.charAt(0);
|
|
equality2 = equality2.substring(1);
|
|
var score =
|
|
diff_cleanupSemanticScore_(equality1, edit) +
|
|
diff_cleanupSemanticScore_(edit, equality2);
|
|
// The >= encourages trailing rather than leading whitespace on edits.
|
|
if (score >= bestScore) {
|
|
bestScore = score;
|
|
bestEquality1 = equality1;
|
|
bestEdit = edit;
|
|
bestEquality2 = equality2;
|
|
}
|
|
}
|
|
if (diffs[pointer - 1][1] != bestEquality1) {
|
|
// We have an improvement, save it back to the diff.
|
|
if (bestEquality1) {
|
|
diffs[pointer - 1][1] = bestEquality1;
|
|
} else {
|
|
diffs.splice(pointer - 1, 1);
|
|
pointer--;
|
|
}
|
|
diffs[pointer][1] = bestEdit;
|
|
if (bestEquality2) {
|
|
diffs[pointer + 1][1] = bestEquality2;
|
|
} else {
|
|
diffs.splice(pointer + 1, 1);
|
|
pointer--;
|
|
}
|
|
}
|
|
}
|
|
pointer++;
|
|
}
|
|
};
|
|
|
|
// Define some regex patterns for matching boundaries.
|
|
var nonAlphaNumericRegex_ = /[^a-zA-Z0-9]/;
|
|
var whitespaceRegex_ = /\s/;
|
|
var linebreakRegex_ = /[\r\n]/;
|
|
var blanklineEndRegex_ = /\n\r?\n$/;
|
|
var blanklineStartRegex_ = /^\r?\n\r?\n/;
|
|
|
|
/**
|
|
* Reorder and merge like edit sections. Merge equalities.
|
|
* Any edit section can move as long as it doesn't cross an equality.
|
|
* @param {!Array.<!diff_match_patch.Diff>} diffs Array of diff tuples.
|
|
*/
|
|
var diff_cleanupMerge = function (diffs) {
|
|
// Add a dummy entry at the end.
|
|
diffs.push(new Diff(DIFF_EQUAL, ''));
|
|
var pointer = 0;
|
|
var count_delete = 0;
|
|
var count_insert = 0;
|
|
var text_delete = '';
|
|
var text_insert = '';
|
|
var commonlength;
|
|
while (pointer < diffs.length) {
|
|
switch (diffs[pointer][0]) {
|
|
case DIFF_INSERT:
|
|
count_insert++;
|
|
text_insert += diffs[pointer][1];
|
|
pointer++;
|
|
break;
|
|
case DIFF_DELETE:
|
|
count_delete++;
|
|
text_delete += diffs[pointer][1];
|
|
pointer++;
|
|
break;
|
|
case DIFF_EQUAL:
|
|
// Upon reaching an equality, check for prior redundancies.
|
|
if (count_delete + count_insert > 1) {
|
|
if (count_delete !== 0 && count_insert !== 0) {
|
|
// Factor out any common prefixies.
|
|
commonlength = diff_commonPrefix(text_insert, text_delete);
|
|
if (commonlength !== 0) {
|
|
if (
|
|
pointer - count_delete - count_insert > 0 &&
|
|
diffs[pointer - count_delete - count_insert - 1][0] ==
|
|
DIFF_EQUAL
|
|
) {
|
|
diffs[pointer - count_delete - count_insert - 1][1] +=
|
|
text_insert.substring(0, commonlength);
|
|
} else {
|
|
diffs.splice(
|
|
0,
|
|
0,
|
|
new Diff(DIFF_EQUAL, text_insert.substring(0, commonlength))
|
|
);
|
|
pointer++;
|
|
}
|
|
text_insert = text_insert.substring(commonlength);
|
|
text_delete = text_delete.substring(commonlength);
|
|
}
|
|
// Factor out any common suffixies.
|
|
commonlength = diff_commonSuffix(text_insert, text_delete);
|
|
if (commonlength !== 0) {
|
|
diffs[pointer][1] =
|
|
text_insert.substring(text_insert.length - commonlength) +
|
|
diffs[pointer][1];
|
|
text_insert = text_insert.substring(
|
|
0,
|
|
text_insert.length - commonlength
|
|
);
|
|
text_delete = text_delete.substring(
|
|
0,
|
|
text_delete.length - commonlength
|
|
);
|
|
}
|
|
}
|
|
// Delete the offending records and add the merged ones.
|
|
pointer -= count_delete + count_insert;
|
|
diffs.splice(pointer, count_delete + count_insert);
|
|
if (text_delete.length) {
|
|
diffs.splice(pointer, 0, new Diff(DIFF_DELETE, text_delete));
|
|
pointer++;
|
|
}
|
|
if (text_insert.length) {
|
|
diffs.splice(pointer, 0, new Diff(DIFF_INSERT, text_insert));
|
|
pointer++;
|
|
}
|
|
pointer++;
|
|
} else if (pointer !== 0 && diffs[pointer - 1][0] == DIFF_EQUAL) {
|
|
// Merge this equality with the previous one.
|
|
diffs[pointer - 1][1] += diffs[pointer][1];
|
|
diffs.splice(pointer, 1);
|
|
} else {
|
|
pointer++;
|
|
}
|
|
count_insert = 0;
|
|
count_delete = 0;
|
|
text_delete = '';
|
|
text_insert = '';
|
|
break;
|
|
}
|
|
}
|
|
if (diffs[diffs.length - 1][1] === '') {
|
|
diffs.pop(); // Remove the dummy entry at the end.
|
|
}
|
|
|
|
// Second pass: look for single edits surrounded on both sides by equalities
|
|
// which can be shifted sideways to eliminate an equality.
|
|
// e.g: A<ins>BA</ins>C -> <ins>AB</ins>AC
|
|
var changes = false;
|
|
pointer = 1;
|
|
// Intentionally ignore the first and last element (don't need checking).
|
|
while (pointer < diffs.length - 1) {
|
|
if (
|
|
diffs[pointer - 1][0] == DIFF_EQUAL &&
|
|
diffs[pointer + 1][0] == DIFF_EQUAL
|
|
) {
|
|
// This is a single edit surrounded by equalities.
|
|
if (
|
|
diffs[pointer][1].substring(
|
|
diffs[pointer][1].length - diffs[pointer - 1][1].length
|
|
) == diffs[pointer - 1][1]
|
|
) {
|
|
// Shift the edit over the previous equality.
|
|
diffs[pointer][1] =
|
|
diffs[pointer - 1][1] +
|
|
diffs[pointer][1].substring(
|
|
0,
|
|
diffs[pointer][1].length - diffs[pointer - 1][1].length
|
|
);
|
|
diffs[pointer + 1][1] = diffs[pointer - 1][1] + diffs[pointer + 1][1];
|
|
diffs.splice(pointer - 1, 1);
|
|
changes = true;
|
|
} else if (
|
|
diffs[pointer][1].substring(0, diffs[pointer + 1][1].length) ==
|
|
diffs[pointer + 1][1]
|
|
) {
|
|
// Shift the edit over the next equality.
|
|
diffs[pointer - 1][1] += diffs[pointer + 1][1];
|
|
diffs[pointer][1] =
|
|
diffs[pointer][1].substring(diffs[pointer + 1][1].length) +
|
|
diffs[pointer + 1][1];
|
|
diffs.splice(pointer + 1, 1);
|
|
changes = true;
|
|
}
|
|
}
|
|
pointer++;
|
|
}
|
|
// If shifts were made, the diff needs reordering and another shift sweep.
|
|
if (changes) {
|
|
diff_cleanupMerge(diffs);
|
|
}
|
|
};
|