124 lines
4.8 KiB
JavaScript
124 lines
4.8 KiB
JavaScript
BR.Diff = {};
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// <script src="https://unpkg.com/googlediff@0.1.0/javascript/diff_match_patch.js"></script>
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BR.Diff.diff = function (uri, track, format) {
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BR.Util.get(
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uri,
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((err, text) => {
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if (err) {
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console.error('Error exporting "' + profileUrl + '": ' + err);
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return;
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}
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if (format === 'gpx') {
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text = BR.Gpx.pretty(BR.Diff.adoptGpx(text));
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} else if (format === 'geojson') {
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text = JSON.stringify(JSON.parse(text), null, 2);
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}
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var dmp = new diff_match_patch();
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var diff = dmp.diff_main(text, track);
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dmp.diff_cleanupSemantic(diff);
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if (dmp.diff_levenshtein(diff) > 0) {
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let i = 0;
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while (i < diff.length - 2) {
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if (
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diff[i][0] === 0 &&
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diff[i + 1][0] === -1 &&
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diff[i + 2][0] === 1 &&
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(/(rteTime|rteSpeed)>\d+\.\d{0,2}$/.test(diff[i][1]) || /time=[0-9h ]*m \d$/.test(diff[i][1]))
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) {
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const del = +diff[i + 1][1];
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const ins = +diff[i + 2][1];
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if (Number.isInteger(del) && Number.isInteger(ins) && Math.abs(del - ins) <= 1) {
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diff.splice(i + 1, 2);
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if (i + 1 < diff.length && diff[i + 1][0] === 0) {
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diff[i + 1][1] = diff[i][1] + diff[i + 1][1];
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diff.splice(i, 1);
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continue;
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}
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}
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}
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i++;
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}
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}
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if (dmp.diff_levenshtein(diff) > 0) {
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//console.log('server: ', text);
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//console.log('client: ', track);
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console.log(diff);
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bootbox.alert(BR.Diff.diffPrettyHtml(diff));
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} else {
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console.log('diff equal');
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}
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}).bind(this)
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);
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};
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// diff_match_patch.prototype.diff_prettyHtml modified to only show specified number of context lines
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BR.Diff.diffPrettyHtml = function (diffs, contextLen = 2) {
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var html = [];
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var pattern_amp = /&/g;
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var pattern_lt = /</g;
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var pattern_gt = />/g;
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var pattern_para = /\n/g;
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for (var x = 0; x < diffs.length; x++) {
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var op = diffs[x][0]; // Operation (insert, delete, equal)
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var data = diffs[x][1]; // Text of change.
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var text = data
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.replace(pattern_amp, '&')
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.replace(pattern_lt, '<')
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.replace(pattern_gt, '>')
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//.replace(pattern_para, '¶<br>');
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.replace(pattern_para, '<br>');
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switch (op) {
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case DIFF_INSERT:
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html[x] = '<ins style="background:#e6ffe6;">' + text + '</ins>';
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break;
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case DIFF_DELETE:
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html[x] = '<del style="background:#ffe6e6;">' + text + '</del>';
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break;
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case DIFF_EQUAL:
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const lines = text.split('<br>');
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const len = lines.length;
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if (len > contextLen * 2) {
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text = [...lines.slice(0, contextLen), '...', ...lines.slice(-contextLen)].join('<br>');
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}
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html[x] = '<span>' + text + '</span>';
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break;
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}
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}
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return html.join('');
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};
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// TODO remove
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// copied from Gpx.test.js
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BR.Diff.adoptGpx = function (gpx, replaceCreator = true) {
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const creator = 'BRouter-Web 0.15.1';
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const name = 'Track';
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const newline = '\n';
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gpx = gpx.replace(/=\.(?=\d)/, '=0.');
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if (replaceCreator) {
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gpx = gpx.replace(/creator="(?!OsmAndRouter)[^"]*"/, `creator="${creator}"`);
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}
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gpx = gpx.replace(/creator="([^"]*)" version="1.1"/, 'version="1.1" \n creator="$1"');
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//gpx = gpx.replace(/<trk>\n <name>[^<]*<\/name>/, `<trk>\n <name>${name}</name>`);
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gpx = gpx
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.split(newline)
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.map((line) => line.replace(/lon="([^"]*)" lat="([^"]*)"/, 'lat="$2" lon="$1"'))
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.join(newline);
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gpx = gpx.replace(/(lon|lat)="([-0-9]+.[0-9]+?)0+"/g, '$1="$2"'); // remove trailing zeros
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// remove trailing zeros comment-style voicehints
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gpx = gpx.replace(/;\s*([-0-9]+.[0-9]+?)0+;/g, (match, p1) => `;${p1.padStart(10)};`);
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gpx = gpx.replace(/>([-0-9]+?\.\d*0+)<\//g, (match, p1) => `>${+p1}</`); // remove trailing zeros
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gpx = gpx.replace('</gpx>\n', '</gpx>');
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// added
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// trunc bc. float precision diffs
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gpx = gpx.replace(/(rteTime|rteSpeed)>([^<]*)<\//g, (match, p1, p2) => `${p1}>${(+p2).toFixed(3)}</`);
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gpx = gpx.replace(/\n?\s*<\/extensions>\n?\s*<extensions>/, ''); // ignore (invalid) double tag
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return gpx;
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};
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