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Textes de Jean-Luc

P1

De Brest fuir le quotidien
                    S'ÉVADER...

P2

L'Évasion

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Assembly

In the Zig Language Reference, the Assembly section includes some demos targetting the x86_64 architecture for Linux. Here's the same code adapted for aarch64 (AKA arm64) for macOS (Apple Silicon M1 minimum):

Inline Assembly

Here's the file inline_assembly.zig:

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#!/usr/bin/env bash
# goal: compile ~/Documents/Administration/CV locally
#       with a minimalist modern TeX setup

# no texlive package here
brew install basictex

# restart terminal
if [[ "`echo $PATH | tr ':' "\n" | rg TeX`" == "/Library/TeX/texbin" ]]; then echo good; else echo bad; fi
# MUST PRINT good, otherwise stop here!!

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I've recently checked the Shen Programming Language after a hiatus of 5/6 years. Dr Mark Tarver has made some good changes & improvements. But the default S39.1 in 2024 didn't work as expected on my SBCL version (2.4.10). string->n works with any character (ASCII, extended (LATIN..), UNICODE) if I consider SBCL *STANDARD-INPUT* as a character-based stream.

My knowledge is very limited here; The default choice for byte-based input stream might make sense in the long run (faster data streams) but for now, I can use the Shen REPL as I do with SBCL, Lua/Fennel or lein repl)

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Here's some random memos about JavaScript.

Important notes

• NaN is a number (?); operators on NaN yields into NaN except in the + case with a string (as below);

• IMPORTANT: if we write (x + y) with x as a number and y as a string, it yields into a string (because + is mainly a string concatenation operator); but if + is another math operator (eg: *), it yields into a number; another important case of +: 1 + true yields into 2 because true(otherwise false or null) is converted into 1 (0 respectively); 1 + undefined yield into NaN; "1" + null yields into "1null";

• beware of precision issues with floating-point numbers (because JS uses binary form to represent decimal numbers internally); try to remove the floating point (multiply by 10eX where X is a positive integer) then calculate, finally then divide by the same multiplier;

• remember the ternary operator: (condition) ? yes : no;

• IMPORTANT (of for arrays, strings, in for objects):

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Here's some random snippets for a better understanding of Java.

Table of Contents

• New in 11
  • var
  • HTTP client
    • GET
    • POST
• BASIC-AUTH

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Symfony tutorial

I'd start with this (first app tutorial)[https://auth0.com/blog/creating-your-first-symfony-app-and-adding-authentication/]; it looks obscure (I had to check some additional docs). In this tutorial, you'll create a custom authentication using Symfony Guard. NOTE: don't use: (Symfony tutorial)[https://auth0.com/blog/symfony-tutorial-building-a-blog-part-1]

NOTE: check later:

• https://symfony.com/doc/current/page_creation.html
• https://zetcode.com/symfony/routeannotation/

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SQL DIGEST

Basics

Here's some SQL fundamental reminders.

• IMPORTANT: DON'T USE utf8; I use utf8mb4_0900_ai_ci;
• \G to terminate a SQL statement instead of ; displays the result vertically rather than normal tabular format if they are too wide for the current window;

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PHP7 DIGEST

Here's some tips/snippets for PHP7 (knowledge of PHP5 required).

Please install Github Mermaid extension for Firefox/Chrome to display the diagrams in this document.

Useful functions & vars

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BOOTSTRAP DIGEST

NOTE: As much as I can I will try to do the bootstrap 4 tutorial and learn BS5. The demos in the root of this directory are BS5; the subdirectory BS4 contains the demos from tutorialrepublic for the stable but soon deprecated BS4

Please install Github Mermaid extension for Firefox/Chrome to display the diagrams in this document.

Bootstrap basics