निധിin nithinivi

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nithinivi / SPQL.g4

Created August 29, 2025 13:17

nithinivi / Postgreql Query Language frontend

Last active August 29, 2025 07:53

	<condition> ::= [ "NOT" ] <disjunction>

	<disjunction> ::= <conjunction> { "OR" <conjunction> }

	<conjunction> ::= <predicate> { "AND" <predicate> }

	<predicate> ::= <expression>
	\| "(" <condition> ")"

	<expression> ::= <column> <comp_op> <value>

nithinivi / LookupTable.java

Last active August 9, 2024 04:19

LookupTable


	import org.jetbrains.annotations.NotNull;

	import java.util.Collection;
	import java.util.HashMap;
	import java.io.Serializable;
	import java.util.Collection;
	import java.util.Set;
	import java.util.Map;
	import java.util.stream.Collectors;

nithinivi / PredicateExhaustiveSelector.java

Created August 9, 2024 04:11

PredicateExhaustiveSelector


	import org.jetbrains.annotations.NotNull;

	import java.util.HashMap;
	import java.util.Objects;
	import java.util.function.Predicate;

	public class PredicateExhaustiveSelector<O, V> extends HashMap<Predicate<O>, V> {

	/**

nithinivi / Either.java

Created March 26, 2024 12:09

	package sg.dlt.indus.lib.functional;

	import java.util.NoSuchElementException;
	import java.util.Objects;
	import java.util.Optional;
	import java.util.function.Consumer;
	import java.util.function.Function;

	/**
	* Either Monad represents a value of two possible types. An Either is either a {@link Left} or a

nithinivi / gist:d976bd666fb0a9c5da8a6a11f7e2d426

Created July 6, 2023 01:27 — forked from mvaz/gist:973464

Graph listener example

	package net.mvaz.examples.graph;

	import org.jgrapht.DirectedGraph;
	import org.jgrapht.alg.DijkstraShortestPath;
	import org.jgrapht.event.ConnectedComponentTraversalEvent;
	import org.jgrapht.event.TraversalListenerAdapter;
	import org.jgrapht.event.VertexTraversalEvent;
	import org.jgrapht.graph.SimpleDirectedGraph;
	import org.jgrapht.traverse.DepthFirstIterator;
	import org.jgrapht.traverse.GraphIterator;

nithinivi / docker-compose.yml

Last active August 11, 2020 05:33

	version: '3'
	services:
	postgresql:
	image: postgres:11
	volumes:
	- db-data:/var/lib/postgresql/data
	environment:
	POSTGRES_PASSWORD: testuser
	ports:
	- "5432:5432"

nithinivi / Word_counter.py

Last active September 9, 2019 03:06

	#!/usr/bin/env python
	# coding: utf-8

	#Usage Example
	# python Word_counter.py --folder ./fileFolder --words nithin neetha --out d.csv



	import argparse
	import csv

nithinivi / pyenv-install.sh

Last active August 8, 2019 11:03

Installing pyenv in ubuntu

	sudo apt-get update
	sudo apt-get install --no-install-recommends make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev

	curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer \| bash

	echo 'export PATH="$HOME/.pyenv/bin:$PATH"
	eval "$(pyenv init -)"
	eval "$(pyenv virtualenv-init -)"' >> ~/.bashrc

	source ~/.bashrc

nithinivi / text_reader.py

Last active April 3, 2019 09:35

	import subprocess
	import tempfile
	import cv2
	import uuid
	import os
	import matplotlib.pyplot as plt


	def textcleaner(img_path):
	"""Clean the text with text cleaner