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[JavaScript] diff_prettyHtml highlight leading/trailing space difference #144

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[JavaScript] diff_prettyHtml highlight leading/trailing space difference #144

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10 changes: 8 additions & 2 deletions javascript/diff_match_patch_uncompressed.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1254,11 +1254,17 @@ diff_match_patch.prototype.diff_prettyHtml = function(diffs) {
var pattern_lt = /</g;
var pattern_gt = />/g;
var pattern_para = /\n/g;
var pattern_space = /^ | $/g;

for (var x = 0; x < diffs.length; x++) {
var op = diffs[x][0]; // Operation (insert, delete, equal)
var data = diffs[x][1]; // Text of change.
var text = data.replace(pattern_amp, '&amp;').replace(pattern_lt, '&lt;')
.replace(pattern_gt, '&gt;').replace(pattern_para, '&para;<br>');
var text = data
.replace(pattern_amp, '&amp;')
.replace(pattern_lt, '&lt;')
.replace(pattern_gt, '&gt;')
.replace(pattern_para, '&para;<br>')
.replace(pattern_space, '&nbsp;');
switch (op) {
case DIFF_INSERT:
html[x] = '<ins style="background:#e6ffe6;">' + text + '</ins>';
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