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#!/usr/bin/env node
var sys = require("sys");
var fs = require("fs");
var PEG = require("../lib/peg");
[
"benchmarks.js",
"runner.js",
].forEach(function(file) {
eval(fs.readFileSync(__dirname + "/" + file, "utf8"));
});
/* Results Table Manipulation */
function dup(text, count) {
var result = "";
for (var i = 1; i <= count; i++) {
result += text;
}
return result;
}
function padLeft(text, length) {
return dup(" ", length - text.length) + text;
}
function padRight(text, length) {
return text + dup(" ", length - text.length);
}
function center(text, length) {
var padLength = (length - text.length) / 2;
return dup(" ", Math.floor(padLength))
+ text
+ dup(" ", Math.ceil(padLength));
}
function writeTableHeader() {
sys.puts("+-------------------------------------+-----------+------------+--------------+");
sys.puts("| Test | Inp. size | Avg. time | Avg. speed |");
}
function writeHeading(heading) {
sys.puts("+-------------------------------------+-----------+------------+--------------+");
sys.puts("| " + center(heading, 75) + " |");
sys.puts("+-------------------------------------+-----------+------------+--------------+");
}
function writeResult(title, inputSize, parseTime) {
var KB = 1024;
var MS_IN_S = 1000;
sys.puts("| "
+ padRight(title, 35)
+ " | "
+ padLeft((inputSize / KB).toFixed(2), 6)
+ " kB | "
+ padLeft(parseTime.toFixed(2), 7)
+ " ms | "
+ padLeft(((inputSize / KB) / (parseTime / MS_IN_S)).toFixed(2), 7)
+ " kB/s |"
);
}
function writeSeparator() {
sys.puts("+-------------------------------------+-----------+------------+--------------+");
}
function writeTableFooter() {
sys.puts("+-------------------------------------+-----------+------------+--------------+");
}
/* Helpers */
function exitFailure() {
process.exit(1);
}
function abort(message) {
sys.error(message);
exitFailure();
}
/* Main */
var args = process.argv.slice(2); // Trim "node" and the script path.
switch (args.length) {
case 0:
var runCount = 10;
break;
case 1:
var runCount = parseInt(args[0]);
if (isNaN(runCount) || runCount <= 0) {
abort("Number of runs must be a positive integer.");
}
break;
default:
abort("Too many arguments.");
}
sys.puts("Each test is run " + runCount + " times.");
sys.puts("");
Runner.run(benchmarks, runCount, {
readFile: function(file) {
return fs.readFileSync(__dirname + "/" + file, "utf8");
},
testStart: function(benchmark, test) {
/* Nothing to do. */
},
testFinish: function(benchmark, test, inputSize, parseTime) {
writeResult(test.title, inputSize, parseTime);
},
benchmarkStart: function(benchmark) {
writeHeading(benchmark.title);
},
benchmarkFinish: function(benchmark, inputSize, parseTime) {
writeSeparator();
writeResult(benchmark.title + " total", inputSize, parseTime);
},
start: function() {
writeTableHeader();
},
finish: function(inputSize, parseTime) {
writeSeparator();
writeResult("Total", inputSize, parseTime);
writeTableFooter();
},
});