[Pkg-javascript-commits] [node-miller-rabin] 21/37: bin: introduce cli script

[Bastien Roucariès]

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rouca pushed a commit to branch master
in repository node-miller-rabin.

commit d6182d992afef4b393e6643f4c296cd58024e878
Author: Fedor Indutny <fedor at indutny.com>
Date:   Mon Apr 27 11:22:55 2015 +0200

    bin: introduce cli script
---
 bin/miller-rabin | 27 +++++++++++++++++++++++++++
 lib/mr.js        |  3 +--
 package.json     |  3 ++-
 3 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/bin/miller-rabin b/bin/miller-rabin
new file mode 100755
index 0000000..ca10cc4
--- /dev/null
+++ b/bin/miller-rabin
@@ -0,0 +1,27 @@
+#!/usr/bin/env node
+var bn = require('bn.js');
+var fs = require('fs');
+var mr = require('../').create();
+
+var num = '';
+if (process.argv[2]) {
+  num += fs.readFileSync(process.argv[2]);
+  start(num);
+} else {
+  process.stdin.on('data', function(chunk) {
+    num += chunk.toString().replace(/[^0-9a-f]/gi, '');
+  });
+  process.stdin.once('end', function() {
+    start(num);
+  });
+}
+
+function start(text) {
+  var num = new bn(text, 16);
+
+  var divisor = mr.getDivisor(num);
+  if (!divisor)
+    process.exit(1);
+
+  console.log(divisor.toString(16));
+}
diff --git a/lib/mr.js b/lib/mr.js
index 0d237d2..a9e935b 100644
--- a/lib/mr.js
+++ b/lib/mr.js
@@ -83,7 +83,6 @@ MillerRabin.prototype.getDivisor = function getDivisor(n, k) {
 
   var rn1 = n1.toRed(red);
 
-  var prime = true;
   for (; k > 0; k--) {
     var a = this._rand(n2);
 
@@ -110,5 +109,5 @@ MillerRabin.prototype.getDivisor = function getDivisor(n, k) {
     }
   }
 
-  return prime;
+  return false;
 };
diff --git a/package.json b/package.json
index c8a8ccc..838d864 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "1.1.5",
   "description": "Miller Rabin algorithm for primality test",
   "main": "lib/mr.js",
+  "bin": "bin/miller-rabin",
   "scripts": {
     "test": "mocha --reporter=spec test/**/*-test.js"
   },
@@ -25,7 +26,7 @@
     "mocha": "^2.0.1"
   },
   "dependencies": {
-    "bn.js": "^1.0.0",
+    "bn.js": "^2.0.0",
     "brorand": "^1.0.1"
   }
 }

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