denisdemaisbr’s gists

denisdemaisbr / gist:ef376955b606c386ef47b8ef2e2a869e

Created October 13, 2023 03:04

in_array() php in lua

	function in_array(value, array)
	for _, v in ipairs(array) do
	if v == value then
	return true
	end
	end
	return false
	end

denisdemaisbr / strdup_lower.c

Created October 8, 2023 22:26

a simple function to duplicate string and lower it.

	char* strdup_lower(char* str) {
	char *b;
	char *s;
	char *buf;

	errno = 0;
	buf = strdup(str);
	if (!buf)
	return NULL;

denisdemaisbr / strdup_upper.c

Created October 8, 2023 22:23

a simple function to duplicate string and upper it.

	/*
	a simple function to duplicate string and upper it.

	sample:

	...
	char *upper = strdup_upper("HELLO world");
	if (!upper) { perror("ops!"); exit(1); }
	puts(upper);
	free(upper);

denisdemaisbr / strstr.lua

Created September 24, 2023 02:01

strstr() lua implementation

	-- works like c strstr()
	-- retorn index if found pattern =)

	function strstr(haystack, needle)
	if (not haystack) then return nil; end
	if (not needle) then return nil; end

	local h, n = #haystack, #needle;

	for i = 1, h - n + 1 do

denisdemaisbr / install.sh

Created August 5, 2023 20:34

how install docker on raspiberry pi 3/3b+

	# based on 2023-05-03-raspios-bullseye-arm64-lite.img.xz
	#
	su [your password]

	apt-get update && sudo apt-get upgrade
	curl -fsSL test.docker.com -o get-docker.sh && sh get-docker.sh
	usermod -aG docker [user_name]

	# fix 'memory/swap' error
	echo "cgroup_enable=memory swapaccount=1 cgroup_memory=1 cgroup_enable=cpuset" >> /boot/cmdline.txt

denisdemaisbr / gist:ba20927f0e4eb9717efb8250bda82e12

Created July 17, 2023 00:11

args.lua

	--! lua.org
	--! get a argument from cli in lua-5.1

	if not arg or #arg == 0 then
	print('lua args.lua [nome]');
	os.exit(1);
	end

	print( _VERSION )
	print( string.format('ola %q', arg[1]) )

denisdemaisbr / str_split.lua

Last active June 23, 2023 11:26

split a string by length like str_split() from php ported to lua

	--
	-- based on https://www.php.net/manual/en/function.str-split.php
	-- feel to free to validate/adjust to uses asserto/error
	--
	-- Denis Dos Santos Silva
	--

	local function str_split(str, length)
	local result = {}
	local index = 1

denisdemaisbr / rl_helper.php

Created May 27, 2023 13:35

fix Got error 'PHP message: PHP Fatal error: Unparenthesized `a ? b : c ? d : e` is not supported. Use either `(a ? b : c) ? d : e` or `a ? b : (c ? d : e)` in public_html/system/helpers/url_helper.php on line 162'

	/*
	php -v
	PHP 8.0.28 (cli) (built: Feb 14 2023 18:33:29) ( NTS )
	Copyright (c) The PHP Group
	Zend Engine v4.0.28, Copyright (c) Zend Technologies
	with Zend OPcache v8.0.28, Copyright (c), by Zend Technologies

	grep CI_VERSION system/core/CodeIgniter.php
	define('CI_VERSION', '3.0.0');
	*/

denisdemaisbr / test.sql

Created May 26, 2023 19:49

sqlite3 insert or replace

	-- insert or replace sqlite 3.x

	create table config( id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, key text, value text );
	insert into config values (1, "fg", "#ff00ff" );
	insert or replace into config(id, key, value) values ((select id from config where key = "bg"), "bg", "0x00ff00");
	SELECT * FROM config;

	$ sqlite3 < test.sql
	SQLite version 3.34.0 2020-12-01 16:14:00
	1\|fg\|#ff00ff

denisdemaisbr / client-syslog.sh

Last active March 17, 2023 19:32

sample usage of syslog using syslog4j tested with java 1.8 (openjdk version "1.8.0_362")

	#!/bin/sh
	#
	# download package from http://syslog4j.org/
	# check also https://manpages.ubuntu.com/manpages/xenial/man1/logger.1.html
	#

	java -cp syslog4j-0.9.46-bin.jar \
	org.productivity.java.syslog4j.server.SyslogServerMain \
	-h 127.0.0.1 \
	-p 9999 \

DENIS DOS SANTOS SILVA denisdemaisbr