109 lines
2.6 KiB
JavaScript
109 lines
2.6 KiB
JavaScript
/*
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*
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* PrinterUtils (printer-utils.js)
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* Author: rtfpessoa
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*
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*/
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(function(ctx, undefined) {
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var jsDiff = require('diff');
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var utils = require('./utils.js').Utils;
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function PrinterUtils() {
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}
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PrinterUtils.prototype.getHtmlId = function(file) {
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var hashCode = function(text) {
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var hash = 0, i, chr, len;
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if (text.length == 0) return hash;
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for (i = 0, len = text.length; i < len; i++) {
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chr = text.charCodeAt(i);
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hash = ((hash << 5) - hash) + chr;
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hash |= 0; // Convert to 32bit integer
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}
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return hash;
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};
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return "d2h-" + hashCode(this.getDiffName(file)).toString().slice(-6);
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};
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PrinterUtils.prototype.getDiffName = function(file) {
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var oldFilename = file.oldName;
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var newFilename = file.newName;
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if (oldFilename && newFilename
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&& oldFilename !== newFilename
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&& !isDeletedName(newFilename)) {
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return oldFilename + ' -> ' + newFilename;
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} else if (newFilename && !isDeletedName(newFilename)) {
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return newFilename;
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} else if (oldFilename) {
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return oldFilename;
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} else {
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return 'Unknown filename';
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}
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};
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PrinterUtils.prototype.diffHighlight = function(diffLine1, diffLine2, config) {
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var lineStart1, lineStart2;
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var prefixSize = 1;
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if (config.isCombined) {
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prefixSize = 2;
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}
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lineStart1 = diffLine1.substr(0, prefixSize);
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lineStart2 = diffLine2.substr(0, prefixSize);
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diffLine1 = diffLine1.substr(prefixSize);
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diffLine2 = diffLine2.substr(prefixSize);
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var diff;
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if (config.charByChar) {
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diff = jsDiff.diffChars(diffLine1, diffLine2);
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} else {
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diff = jsDiff.diffWordsWithSpace(diffLine1, diffLine2);
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}
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var highlightedLine = '';
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diff.forEach(function(part) {
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var elemType = part.added ? 'ins' : part.removed ? 'del' : null;
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var escapedValue = utils.escape(part.value);
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if (elemType !== null) {
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highlightedLine += '<' + elemType + '>' + escapedValue + '</' + elemType + '>';
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} else {
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highlightedLine += escapedValue;
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}
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});
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return {
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first: {
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prefix: lineStart1,
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line: removeIns(highlightedLine)
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},
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second: {
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prefix: lineStart2,
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line: removeDel(highlightedLine)
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}
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}
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};
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function isDeletedName(name) {
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return name === 'dev/null';
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}
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function removeIns(line) {
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return line.replace(/(<ins>((.|\n)*?)<\/ins>)/g, '');
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}
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function removeDel(line) {
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return line.replace(/(<del>((.|\n)*?)<\/del>)/g, '');
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}
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module.exports['PrinterUtils'] = new PrinterUtils();
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})(this);
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