From 0b637d6870660dc4baa567aa67aa214507ac12f1 Mon Sep 17 00:00:00 2001
From: Lauchmelder <robert.trololo@gmail.com>
Date: Sat, 27 Nov 2021 22:59:21 +0100
Subject: [PATCH] Update syntax.md

---
 src/doc/syntax.md | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/doc/syntax.md b/src/doc/syntax.md
index c01cdf1..b66f171 100644
--- a/src/doc/syntax.md
+++ b/src/doc/syntax.md
@@ -1,15 +1,21 @@
 # Syntax
 
 ```
-point(3 | 4) -> A
-point(6 | 7) -> B
+[point(3, 4) -> A]
+point(6, 7) -> B
 
 line(A, B) -> AB
-line(0 | 0, 100 | 100)
+line(point(0, 0), point(100, 100))
 
 circle(A, len(AB))
 ```
 
+## Behaviour
+Every line is one instruction. It is possible to assign instructions names to re-use them later.
+These variables are immutable. Objects do not exist in this script, in fact, variables are more similar to C-style macros than actual variables.
+
+Lines in brackets `[]` are "hidden". They are parsed, but will not be rendered.
+
 ## Primitives
 * `Point point(x, y)` is a 2D point. It returns an element of type `Point`
 * `Line line(Point from, Point to)` is a straight line. It returns an element of type `Line`.
@@ -21,4 +27,4 @@ instruction ::= identifier({parameter, }) [-> identifer]
 parameter ::= instruction | identifier | number
 identifier ::= (A-Za-z)
 number ::= (0-9)[.(0-9)]
-```
\ No newline at end of file
+```