denisdemaisbr

#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/resource.h>

double get_time()
{
    struct timeval t;
    struct timezone tzp;
    gettimeofday(&t, &tzp);

denisdemaisbr

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

denisdemaisbr

char* strdup_lower(char* str) {
	char *b;
	char *s;
	char *buf;
	
	errno = 0;
	buf = strdup(str);
	if (!buf)
		return NULL;

denisdemaisbr

/*
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

-- 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

# 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

--! 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

--
-- 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

/*
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

-- 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