Peng-YM Peng-YM

name	description	allowed-tools
ast-grep-search	Syntax-aware code searching that understands code structure rather than just text patterns. Always prefer ast-grep than grep for code searches.	Read, Grep, Bash(ast-grep:), Bash(sg:)

ast-grep: Structural Code Search

ast-grep allows searching code based on its Abstract Syntax Tree (AST), enabling syntax-aware pattern matching. It is ideal for finding function calls, method invocations, variable declarations, and other code structures while respecting language syntax.

Tool: draw.io

Animate the connectors

Animating your connectors is great for demonstrating directional flow charts, electrical circuits and more. To animate your connectors:

Click on the connector you wish to animate. Hold Ctrl or Cmd and click to select multiple connectors
On the right-hand side go to Style > Property and click on the arrow to expand the field
Scroll down to Flow Animation and check the box

Use IntelliJ or WebStorm as git mergetool

Configure Sourcetree

The merge tool that ships with JetBrain's IntelliJ IDEA or WebStorm is really awesome and way better than FileMerge. It is quite simple to configure SourceTree to use it as the default mergetool:

Open the SourceTree preferences and select the Diff tab
Choose Custom both as Visual Diff Tool and as Merge Tool
Paste the following commands into the textfields:

Diff Command: /Applications/IntelliJ\ IDEA.app/Contents/MacOS/idea diff

Installing Python 2.7 on Centos 6.5

Centos 6.* comes with Python 2.6, but we can't just replace it with v2.7 because it's used by the OS internally (apparently) so you will need to install v2.7 (or 3.x, for that matter) along with it. Fortunately, CentOS made this quite painless with their Software Collections Repository

sudo yum update # update yum
sudo yum install centos-release-scl # install SCL 
sudo yum install python27 # install Python 2.7

To use it, you essentially spawn another shell (or script) while enabling the newer version of Python:

	#!/bin/bash

	# According to:
	# How To Set Up Python 2.7.6 and 3.3.3 on CentOS 6.4
	# https://www.digitalocean.com/community/tutorials/how-to-set-up-python-2-7-6-and-3-3-3-on-centos-6-4
	yum -y update
	yum groupinstall -y 'development tools'
	yum install -y zlib-dev openssl-devel sqlite-devel bzip2-devel
	yum install xz-libs
	wget http://www.python.org/ftp/python/2.7.10/Python-2.7.10.tar.xz

	import skimage;
	from skimage import data
	from skimage.filters import threshold_otsu
	from skimage.segmentation import clear_border
	from skimage.measure import label
	from skimage.morphology import closing, square
	from skimage.measure import regionprops
	from skimage.color import label2rgb
	import cv2
	import numpy as np

	# Hello, and welcome to makefile basics.
	#
	# You will learn why `make` is so great, and why, despite its "weird" syntax,
	# it is actually a highly expressive, efficient, and powerful way to build
	# programs.
	#
	# Once you're done here, go to
	# http://www.gnu.org/software/make/manual/make.html
	# to learn SOOOO much more.

	#include <string.h>

	void __memcpy_glibc_2_2_5(void , const void *, size_t);

	asm(".symver __memcpy_glibc_2_2_5, memcpy@GLIBC_2.2.5");
	void __wrap_memcpy(void dest, const void *src, size_t n)
	{
	return __memcpy_glibc_2_2_5(dest, src, n);
	}

	// see build.gradle for imports
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;
	import ch.qos.logback.classic.LoggerContext;
	import ch.qos.logback.core.util.StatusPrinter;
	...
	public abstract class Utilities {
	public static final Logger logger = LoggerFactory.getLogger( "AnyUniqueStringHere" );
	...
	public static void printLoggerState() {