67 lines
1.9 KiB
JavaScript
67 lines
1.9 KiB
JavaScript
(function() {
|
|
var EventEmitter, Parser, Reply,
|
|
__hasProp = {}.hasOwnProperty,
|
|
__extends = 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; };
|
|
|
|
EventEmitter = require('events').EventEmitter;
|
|
|
|
Reply = require('./reply');
|
|
|
|
Parser = (function(_super) {
|
|
__extends(Parser, _super);
|
|
|
|
function Parser(options) {
|
|
this.column = 0;
|
|
this.buffer = new Buffer('');
|
|
}
|
|
|
|
Parser.prototype.parse = function(chunk) {
|
|
this.buffer = Buffer.concat([this.buffer, chunk]);
|
|
while (this.column < this.buffer.length) {
|
|
if (this.buffer[this.column] === 0x0a) {
|
|
this._parseLine(this.buffer.slice(0, this.column));
|
|
this.buffer = this.buffer.slice(this.column + 1);
|
|
this.column = 0;
|
|
}
|
|
this.column += 1;
|
|
}
|
|
if (this.buffer.length) {
|
|
this.emit('wait');
|
|
} else {
|
|
this.emit('drain');
|
|
}
|
|
};
|
|
|
|
Parser.prototype._parseLine = function(line) {
|
|
switch (line[0]) {
|
|
case 0x4f:
|
|
if (line.length === 2) {
|
|
this.emit('reply', new Reply(Reply.OK, null));
|
|
} else {
|
|
this.emit('reply', new Reply(Reply.OK, line.toString('ascii', 3)));
|
|
}
|
|
break;
|
|
case 0x45:
|
|
if (line.length === 5) {
|
|
this.emit('reply', new Reply(Reply.ERROR, null));
|
|
} else {
|
|
this.emit('reply', new Reply(Reply.ERROR, line.toString('ascii', 6)));
|
|
}
|
|
break;
|
|
default:
|
|
this._complain(line);
|
|
}
|
|
};
|
|
|
|
Parser.prototype._complain = function(line) {
|
|
this.emit('error', new SyntaxError("Unparseable line '" + line + "'"));
|
|
};
|
|
|
|
return Parser;
|
|
|
|
})(EventEmitter);
|
|
|
|
module.exports = Parser;
|
|
|
|
}).call(this);
|