52 lines
1.4 KiB
JavaScript
52 lines
1.4 KiB
JavaScript
(function() {
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var Stream, Transform,
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extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
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hasProp = {}.hasOwnProperty;
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Stream = require('stream');
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Transform = (function(superClass) {
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extend(Transform, superClass);
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function Transform(options) {
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this.savedR = null;
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Transform.__super__.constructor.call(this, options);
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}
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Transform.prototype._transform = function(chunk, encoding, done) {
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var hi, last, lo;
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lo = 0;
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hi = 0;
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if (this.savedR) {
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if (chunk[0] !== 0x0a) {
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this.push(this.savedR);
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}
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this.savedR = null;
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}
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last = chunk.length - 1;
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while (hi <= last) {
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if (chunk[hi] === 0x0d) {
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if (hi === last) {
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this.savedR = chunk.slice(last);
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break;
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} else if (chunk[hi + 1] === 0x0a) {
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this.push(chunk.slice(lo, hi));
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lo = hi + 1;
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}
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}
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hi += 1;
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}
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if (hi !== lo) {
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this.push(chunk.slice(lo, hi));
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}
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done();
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};
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return Transform;
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})(Stream.Transform);
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module.exports = Transform;
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}).call(this);
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