User:Cacycle/diff.js: Difference between revisions

Revision as of 03:09, 14 September 2014

Revision as of 10:54, 14 September 2014

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// ==UserScript==

// @name wDiff

// @version 1.0.1819

// @date September 1314, 2014

// @description improved word-based diff library with block move detection

// @homepage https://en.wikipedia.org/wiki/User:Cacycle/diff

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* Block move detection and visualization

* Minimizing length of moved vs. static blocks

* Bubbling upSliding of ambiguous unresolved regions to next line break

* Optional omission of unchanged irrelevant parts from the output

* Fully customizable

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wDiff.regExpSplit = {

// paragraphs: before and after newline

paragraph: /.*\n/g,

// sentences: after .spaces

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}

// regExps for bubbling upsliding gaps

if (wDiff.regExpBubbleStopregExpSlideStop === undefined) { wDiff.regExpBubbleStopregExpSlideStop = /\n$/; }

if (wDiff.regExpBubbleClosingregExpSlideClosing === undefined) { wDiff.regExpBubbleClosingregExpSlideClosing = /^[\s)\]}>\-–—.,:;?!’\/\\=+]/; }

// regExp for counting words

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wDiff.CalculateDiff(text, symbols, 'word', true);

// bubbleslide up gaps

wDiff.BubbleUpGapsSlideGaps(text.newText, text.oldText);

wDiff.BubbleUpGapsSlideGaps(text.oldText, text.newText);

// split tokens into chars in selected unresolved gaps

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wDiff.CalculateDiff(text, symbols, 'character', true);

// bubbleslide up gaps

wDiff.BubbleUpGapsSlideGaps(text.newText, text.oldText);

wDiff.BubbleUpGapsSlideGaps(text.oldText, text.newText);

}

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// wDiff.BubbleUpGapsSlideGaps: move gaps with ambiguous identical fronts and backs up

// start ambiguous gap borders after line breaks and text section closing characters

// changes: text (text.newText or text.oldText) .tokens list

// called from: wDiff.Diff()

wDiff.BubbleUpGapsSlideGaps = function (text, textLinked) {

// cycle through tokens list

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else if ( (gapStart !== null) && (text.tokens[i].link !== null) ) {

// bubbleslide down as deep as possible

var front = gapStart;

var back = i;

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(text.tokens[frontTest].token == text.tokens[backTest].token)

) {

if (wDiff.regExpBubbleStopregExpSlideStop.test(text.tokens[frontTest].token) === true) {

frontStop = frontTest;

break;

}

else if ( (frontStop === null) && (wDiff.regExpBubbleClosingregExpSlideClosing.test(text.tokens[frontTest].token) === true) ) {

frontStop = frontTest;

}

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}

// actually bubbleslide up to last line break or closing text

if (frontStop !== null) {

while (

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// repeat from start after conversion

if (unlinked === true) {

wDiff.BubbleUpGapsSlideGaps(text.newText, text.oldText);

wDiff.BubbleUpGapsSlideGaps(text.oldText, text.newText);

// repeat block detection from start