commit 772c15bcc157610e4512eca83b9ad053e6cefd5b
Author: Emilis <emilis@puff.place>
Date:   Thu Apr 3 18:02:13 2025 +0100

    initial commit: rewrote in (embarassingly bad) wasm

diff --git a/.gitignore b/.gitignore
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+checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
+
+[[package]]
+name = "winnow"
+version = "0.5.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f593a95398737aeed53e489c785df13f3618e41dbcd6718c6addbf1395aa6876"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "yew"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f1a03f255c70c7aa3e9c62e15292f142ede0564123543c1cc0c7a4f31660cac"
+dependencies = [
+ "console_error_panic_hook",
+ "futures",
+ "gloo 0.10.0",
+ "implicit-clone",
+ "indexmap",
+ "js-sys",
+ "prokio",
+ "rustversion",
+ "serde",
+ "slab",
+ "thiserror",
+ "tokio",
+ "tracing",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "yew-macro",
+]
+
+[[package]]
+name = "yew-macro"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02fd8ca5166d69e59f796500a2ce432ff751edecbbb308ca59fd3fe4d0343de2"
+dependencies = [
+ "boolinator",
+ "once_cell",
+ "prettyplease",
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.100",
+]
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..50f0bda
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,16 @@
+[package]
+name = "bits-rs"
+version = "0.1.0"
+edition = "2024"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[dependencies]
+log = "0.4.26"
+seq-macro = "0.3.6"
+wasm-logger = "0.2.0"
+web-sys = { version = "0.3", features = [
+	"HtmlTableCellElement",
+	"Event",
+	"EventTarget",
+] }
+yew = { version = "0.21", features = ["csr"] }
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..a99854f
--- /dev/null
+++ b/index.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+	<meta charset="utf-8" />
+	<title>bits n bits</title>
+	<link data-trunk rel="sass" href="index.scss" />
+</head>
+
+<body>
+
+</body>
+
+</html>
diff --git a/index.scss b/index.scss
new file mode 100644
index 0000000..a41c09d
--- /dev/null
+++ b/index.scss
@@ -0,0 +1,142 @@
+body {
+	background: linear-gradient(to bottom right, bisque, hsl(24, 57%, 70%));
+	height: 100vw;
+	margin: 0;
+}
+
+
+#bytes_in {
+	text-align: center;
+	border: 0px;
+	font-size: 56px;
+	font-family: 'Cute Font';
+	filter: sepia(100%);
+	border-radius: 10px;
+	background-color: #eeeeee;
+}
+
+#input_box {
+	filter:
+		// drop-shadow(5px 5px red)
+		sepia(100%) //  drop-shadow(-5px -5px hsl(24, 27%, 40%))
+		drop-shadow(10px 10px 10px 10px hsl(24, 27%, 40%));
+	height: 150px;
+	display: flex;
+	width: 100%;
+	align-items: center;
+	justify-content: center;
+}
+
+.bit {
+	color: blue;
+	font-weight: 200;
+	font-size: 80px;
+	cursor: pointer;
+}
+
+th {
+	background-color: bisque;
+}
+
+th:nth-child(odd) {
+	background-color: burlywood;
+}
+
+
+#bit_wrap table:nth-of-type(even) {
+	margin-left: 5px;
+	margin-bottom: 5px;
+	margin-right: 0px;
+}
+
+#bit_wrap table:nth-of-type(odd) {
+	margin-left: 0px;
+	margin-bottom: 5px;
+	margin-right: 5px;
+}
+
+table {
+	width: 45%;
+}
+
+#activated_ext {
+	display: flex;
+	flex-wrap: wrap;
+	flex-basis: content;
+	justify-content: center;
+	-moz-user-select: none;
+	-webkit-user-select: none;
+	-ms-user-select: none;
+	user-select: none;
+	-o-user-select: none;
+	text-align: center;
+	border: 0px;
+	font-size: 36px;
+	font-family: 'Cute Font';
+
+	background: -webkit-linear-gradient(hsl(24, 27%, 40%), hsl(24, 27%, 50%));
+	background-clip: border-box;
+	-webkit-background-clip: text;
+	-webkit-text-fill-color: transparent;
+}
+
+#activated_wrap {
+	display: flex;
+	flex-wrap: wrap;
+	flex-basis: content;
+	justify-content: center;
+	-moz-user-select: none;
+	-webkit-user-select: none;
+	-ms-user-select: none;
+	user-select: none;
+	-o-user-select: none;
+	text-align: center;
+	border: 0px;
+	font-size: 36px;
+	font-family: 'Cute Font';
+
+	background: -webkit-linear-gradient(hsl(24, 27%, 40%), hsl(24, 27%, 50%));
+	background-clip: border-box;
+	-webkit-background-clip: text;
+	-webkit-text-fill-color: transparent;
+}
+
+
+#bit_wrap {
+	filter: drop-shadow(3px 3px red) sepia(100%) drop-shadow(-3px -3px hsl(24, 27%, 40%));
+
+	display: flex;
+	flex-wrap: wrap;
+	flex-basis: content;
+	justify-content: center;
+	-moz-user-select: none;
+	-webkit-user-select: none;
+	-ms-user-select: none;
+	user-select: none;
+	-o-user-select: none;
+}
+
+#activated {
+	text-wrap: balance;
+	font-weight: bold;
+	font-size: 64px;
+	color: grey;
+	word-wrap: break-word;
+
+	text-align: center;
+	/* width: 90vw; */
+}
+
+#activated_text {
+	font-weight: bold;
+	text-align: center;
+	font-size: 32px;
+}
+
+.bit:hover {
+	filter: brightness(85%) saturate(150%);
+}
+
+.header {
+	font-size: x-large;
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..f41b6cb
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,223 @@
+#![allow(clippy::expect_fun_call)]
+use core::ops::Range;
+
+use web_sys::{HtmlInputElement, HtmlTableCellElement, wasm_bindgen::JsCast};
+use yew::prelude::*;
+
+struct BitsTable {
+    bits: Html,
+    value_box: Html,
+}
+
+const HEX: &[char] = &[
+    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'A', 'B', 'C',
+    'D', 'E', 'F', 'x',
+];
+
+const ALLOWED_CHARS: &[char] = &[
+    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'A', 'B', 'C',
+    'D', 'E', 'F', 'x', '_',
+];
+
+fn value_to_u32(value: &str) -> u32 {
+    let value = value.trim();
+    if let Some(value) = value.strip_prefix("0x") {
+        u32::from_str_radix(value.trim(), 16)
+    } else if let Some(value) = value.strip_prefix("0b") {
+        u32::from_str_radix(value.trim(), 2)
+    } else if let Some(value) = value.strip_prefix("0o") {
+        u32::from_str_radix(value.trim(), 8)
+    } else {
+        value.parse()
+    }
+    .unwrap_or_default()
+}
+
+impl Component for BitsTable {
+    type Message = ();
+
+    type Properties = ();
+
+    fn create(_ctx: &Context<Self>) -> Self {
+        let bit_click = |bit: u8| {
+            move |ev: MouseEvent| {
+                let input = web_sys::window()
+                    .unwrap()
+                    .document()
+                    .unwrap()
+                    .get_element_by_id("bytes_in")
+                    .unwrap()
+                    .dyn_into::<HtmlInputElement>()
+                    .unwrap();
+                let mut value = value_to_u32(&input.value());
+                if let Some(target) = ev
+                    .target()
+                    .and_then(|t| t.dyn_into::<HtmlTableCellElement>().ok())
+                {
+                    match target.inner_text().as_str() {
+                        "0" => {
+                            target.set_inner_text("1");
+                            value |= 1 << bit;
+                        }
+                        _ => {
+                            target.set_inner_text("0");
+                            value &= !(1 << bit);
+                        }
+                    }
+                }
+
+                input.set_value(format!("{value:#X}").as_str());
+
+                input
+                    .dispatch_event(&InputEvent::new("input").unwrap())
+                    .unwrap();
+            }
+        };
+        let bits = (0..4usize)
+            .rev()
+            .map(|idx| {
+                let headers = (idx * 8..idx * 8 + 8)
+                    .rev()
+                    .map(|idx| {
+                        html! {
+                            <th>{idx}</th>
+                        }
+                    })
+                    .collect::<Html>();
+                let values = (idx * 8..idx * 8 + 8)
+                    .rev()
+                    .map(|idx| html! {
+						<th class="bit" id={format!("bit{idx}")} onclick={bit_click(idx as _)}>{0}</th>
+					})
+                    .collect::<Html>();
+
+                html! {
+                    <table>
+                        <tr class="header">
+                            {headers}
+                        </tr>
+                        <tr>
+                            {values}
+                        </tr>
+                    </table>
+                }
+            })
+            .collect::<Html>();
+
+        let on_input = move |ev: InputEvent| {
+            let input_element = ev
+                .target()
+                .and_then(|t| t.dyn_into::<HtmlInputElement>().ok())
+                .expect("on_input should have a target");
+            let text = input_element.value().matches(HEX).collect::<String>();
+            input_element.set_value(
+                &input_element
+                    .value()
+                    .matches(ALLOWED_CHARS)
+                    .collect::<String>(),
+            );
+            let mut num: u32 = match text.strip_prefix("0x") {
+                Some(hex) => u32::from_str_radix(hex, 16).unwrap_or_default(),
+                None => text.parse().unwrap_or_default(),
+            };
+            let doc = web_sys::window().unwrap().document().unwrap();
+            if num == 0 {
+                doc.get_element_by_id("activated_wrap")
+                    .unwrap()
+                    .set_attribute("style", "visibility: hidden;")
+                    .unwrap();
+            } else {
+                doc.get_element_by_id("activated_wrap")
+                    .unwrap()
+                    .set_attribute("style", "")
+                    .unwrap();
+            }
+            let mut act: Vec<Range<u8>> = vec![];
+            for idx in 0..32u8 {
+                let cell = doc
+                    .get_element_by_id(format!("bit{idx}").as_str())
+                    .expect("missing bit")
+                    .dyn_into::<HtmlTableCellElement>()
+                    .expect(format!("bit{idx} should be a table cell").as_str());
+                let set = match num & 1 {
+                    0 => false,
+                    1 => true,
+                    _ => unreachable!(),
+                };
+                if set {
+                    match act.iter_mut().last() {
+                        Some(last) => {
+                            if last.end + 1 == idx {
+                                last.end += 1;
+                            } else {
+                                act.push(idx..idx);
+                            }
+                        }
+                        None => act.push(idx..idx),
+                    }
+                }
+                cell.set_inner_text(match set {
+                    false => "0",
+                    true => "1",
+                });
+                num >>= 1;
+            }
+            if act.is_empty() {
+                doc.get_element_by_id("activated")
+                    .unwrap()
+                    .set_text_content(None);
+                return;
+            }
+
+            let act_str = act
+                .into_iter()
+                .map(|act| {
+                    if act.is_empty() {
+                        act.start.to_string()
+                    } else {
+                        format!("{act:?}")
+                    }
+                })
+                .collect::<Vec<_>>()
+                .join(", ");
+
+            doc.get_element_by_id("activated")
+                .unwrap()
+                .set_text_content(Some(&act_str));
+        };
+
+        let value_box = html! {
+            <div id="input_box">
+                <input id="bytes_in" oninput={on_input} />
+            </div>
+        };
+        Self { bits, value_box }
+    }
+
+    fn view(&self, _ctx: &Context<Self>) -> Html {
+        let bits = self.bits.clone();
+        let value_box = self.value_box.clone();
+
+        html! {
+            <>
+            {value_box}
+            <br />
+            <div id="bit_wrap">
+                {bits}
+            </div>
+            <div id="activated_ext">
+                <h2>{"activated"}</h2>
+            </div>
+            <div id="activated_wrap">
+                <p id="activated"></p>
+            </div>
+            </>
+        }
+    }
+}
+
+fn main() {
+    wasm_logger::init(wasm_logger::Config::default());
+
+    yew::Renderer::<BitsTable>::new().render();
+}