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console.js
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console.js
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/*
A console.log that won't leave you hanging when node exits
90% of this file was ripped from node.js
License: see: https://github.com/joyent/node/blob/master/lib/console.js
*/
var util = require('util');
var fs = require("fs");
/* Monkey patching */
if (!util.format) {
var formatRegExp = /%[sdj%]/g;
util.format = function(f) {
if (typeof f !== 'string') {
var objects = [];
for (var i = 0; i < arguments.length; i++) {
objects.push(util.inspect(arguments[i]));
}
return objects.join(' ');
}
var i = 1;
var args = arguments;
var len = args.length;
var str = String(f).replace(formatRegExp, function(x) {
if (i >= len) return x;
switch (x) {
case '%s': return String(args[i++]);
case '%d': return Number(args[i++]);
case '%j': return JSON.stringify(args[i++]);
case '%%': return '%';
default:
return x;
}
});
for (var x = args[i]; i < len; x = args[++i]) {
if (x === null || typeof x !== 'object') {
str += ' ' + x;
} else {
str += ' ' + util.inspect(x);
}
}
return str;
}
}
var consoleFlush = function(data) {
if (!Buffer.isBuffer(data)) {
data= new Buffer(''+ data);
}
if (data.length) {
var written= 0;
do {
try {
var len = data.length- written;
written += fs.writeSync(process.stdout.fd, data, written, len, -1);
}
catch (e) {
}
} while(written < data.length);
}
};
var originalConsoleLog = console.log;
var patchedConsoleLog = function() {
var str = util.format.apply(null, arguments) + "\n";
consoleFlush(str);
};
exports.patch = function() {
console.log = patchedConsoleLog;
}
exports.unpatch = function() {
console.log = originalConsoleLog;
}