From 91b2f4b43fe4ab7e0dc3f2f3b33ae0bf4dfe490c Mon Sep 17 00:00:00 2001
From: SimonFJ20 <simonfromjakobsen@gmail.com>
Date: Wed, 18 Jan 2023 20:43:54 +0100
Subject: [PATCH] rust bing bong

---
 bong_grammar.txt   | 20 ++++++++++----
 src/bong/lexer.rs  | 68 ++++++++++++++++++++++++++++++++++++++++++++++
 src/bong/mod.rs    |  2 ++
 src/bong/parser.rs | 29 ++++++++++++++++++++
 src/main.rs        |  2 ++
 5 files changed, 116 insertions(+), 5 deletions(-)
 create mode 100644 src/bong/lexer.rs
 create mode 100644 src/bong/mod.rs
 create mode 100644 src/bong/parser.rs

diff --git a/bong_grammar.txt b/bong_grammar.txt
index bac29da..04becae 100644
--- a/bong_grammar.txt
+++ b/bong_grammar.txt
@@ -103,15 +103,25 @@ MultiLineWhitespace -> [ \t\n\r\f\v]+
 SingleLineComment -> \/\/[^\n]+
 MultiLineComment -> \/\*.*?\*\/
 
-Name -> [a-zA-Z_][a-zA-Z0-9_]*
-Id -> #[a-zA-Z0-9_]+
-Class \.[a-zA-Z0-9_]+
-
-Int -> [0-9]+
 Float -> [0-9]+\.[0-9]*
+Int -> [0-9]+
 String -> "<sequence of optionally escaped characters \
     and escaped special character placeholders \
     terminated by an unescaped '"'>
 Null -> "null"
 False -> "false"
 True -> "true"
+
+Name -> [a-zA-Z_][a-zA-Z0-9_]*
+Id -> #[a-zA-Z0-9_]+
+Class \.[a-zA-Z0-9_]+
+
+LBrace -> "("
+RBrace -> ")"
+LBracket -> "["
+RBracket -> "]"
+
+Equal -> "="
+Colon -> ":"
+SemiColon -> ";"
+Comma -> ","
diff --git a/src/bong/lexer.rs b/src/bong/lexer.rs
new file mode 100644
index 0000000..8ef23db
--- /dev/null
+++ b/src/bong/lexer.rs
@@ -0,0 +1,68 @@
+use std::{iter::Peekable, str::Chars};
+
+pub enum TokenType {
+    SinglelineWhitespace,
+    MultilineWhitespace,
+    SinglelineComment,
+    MultilineComment,
+
+    Name,
+    Id,
+    Class,
+
+    Int,
+    Float,
+    String,
+    Null,
+    False,
+    True,
+
+    LBrace,
+    RBrace,
+    LBracket,
+    RBracket,
+
+    Equal,
+    Colon,
+    SemiColon,
+    Comma,
+}
+
+pub struct Token<'a> {
+    token_type: TokenType,
+    value: &'a str,
+    line: u32,
+    col: u32,
+}
+
+pub struct LexerError {
+    line: u32,
+    col: u32,
+    message: String,
+}
+
+impl LexerError {
+    pub fn new(line: u32, col: u32, message: String) -> Self {
+        Self { line, col, message }
+    }
+}
+
+pub struct Lexer<'a> {
+    phantom: std::marker::PhantomData<&'a u32>,
+}
+
+impl<'a> Lexer<'a> {
+    pub fn new(text: &'a str) -> Self {
+        Self {
+            phantom: std::marker::PhantomData {},
+        }
+    }
+}
+
+impl<'a> Iterator for Lexer<'a> {
+    type Item = Result<Token<'a>, String>;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        todo!()
+    }
+}
diff --git a/src/bong/mod.rs b/src/bong/mod.rs
new file mode 100644
index 0000000..5333bc7
--- /dev/null
+++ b/src/bong/mod.rs
@@ -0,0 +1,2 @@
+mod lexer;
+mod parser;
diff --git a/src/bong/parser.rs b/src/bong/parser.rs
new file mode 100644
index 0000000..95b8dfe
--- /dev/null
+++ b/src/bong/parser.rs
@@ -0,0 +1,29 @@
+use std::iter::Map;
+
+use crate::bong::lexer::Lexer;
+
+pub enum Node {
+    Element {
+        name: String,
+        ids: Vec<String>,
+        classes: Vec<String>,
+        properties: Map<String, Box<Node>>,
+        values: Vec<Node>,
+    },
+    Object(Map<String, Box<Node>>),
+    Array(Vec<Node>),
+    Int(i64),
+    Float(f64),
+    String(String),
+    Bool(bool),
+}
+
+pub struct Parser<'a> {
+    lexer: Lexer<'a>,
+}
+
+impl<'a> Parser<'a> {
+    pub fn new(lexer: Lexer<'a>) -> Self {
+        Self { lexer }
+    }
+}
diff --git a/src/main.rs b/src/main.rs
index e7a11a9..13371d6 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,5 @@
+mod bong;
+
 fn main() {
     println!("Hello, world!");
 }