sureshg

Runaway Regular Expressions: Catastrophic Backtracking - https://www.regular-expressions.info/catastrophic.html

"1085632_1230848_1230849_582053_2831200_5524895_6004491&page=6".matches("^\\d+(_?\\d+)*$");

sureshg

I had some historical key material data in pkcs#1 format that needed to be in pkcs#8 for input into another system. Here's how to do it, using BouncyCastle:

import org.bouncycastle.asn1.ASN1InputStream;
import org.bouncycastle.asn1.DERObject;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.bouncycastle.asn1.pkcs.PrivateKeyInfo;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import java.security.PrivateKey;

sureshg

task projectDependencyGraph {
  doLast {
    def dot = new File(rootProject.buildDir, 'project.dot')
    dot.delete()

    dot << 'digraph {\n'
    dot << "  graph [label=\"${rootProject.name}\\n \",labelloc=t,fontsize=30];\n"
    dot << '  node [style=filled, fillcolor="#bbbbbb"];\n'
    dot << '  rankdir=TB;\n'

sureshg

Keybase proof

I hereby claim:

• I am sureshg on github.
• I am suresh (https://keybase.io/suresh) on keybase.
• I have a public key ASD8u-c3VMPka4yOWW5gIiwIpdyKn01ITOTj-WRklYLQBAo

To claim this, I am signing this object:

sureshg

/**
 * Glyph object provides Unicode glyphs as well as it's plain ASCII alternatives.
 * All ASCII glyphs are guaranteed to be the same number of characters as the
 * corresponding Unicode glyphs, so that they line up properly when printed on
 * a terminal. The orginal data file is taken from "Dart term_glyph" project.
 *
 * @author Suresh
 *
 * @see https://github.com/dart-lang/term_glyph
 */

sureshg

class DataRace {
  // Make volatile
  boolean ready = false;
  int answer  = 0;

  void thread1() {
      // Spin Lock
     while(!ready);
     assert answer == 42
  }

sureshg

# Installation Steps on CentOS 6.5
# --------------------------------

$ sudo su -
$ yum install xorg-x11-server-Xvfb
$ yum install firefox
$ yum install ImageMagick
$ dbus-uuidgen > /var/lib/dbus/machine-id

sureshg

package main

import (
	"time"
	"fmt"
	"strings"
)

func main() {
	p := [][][]string {