mirror of
https://github.com/ParkerTenBroeck/automata.git
synced 2026-06-07 05:28:45 -04:00
moved to deno to bundle website
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Parker TenBroeck
parent
c35d7a9192
commit
7629bdab6d
28 changed files with 1534 additions and 41961 deletions
381
web/root/src/editor.ts
Normal file
381
web/root/src/editor.ts
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// deno-lint-ignore-file
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import {
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EditorView,
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keymap,
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hoverTooltip,
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Decoration,
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ViewPlugin,
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lineNumbers,
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highlightActiveLineGutter,
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} from "npm:@codemirror/view";
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import { EditorState, StateField, Text } from "npm:@codemirror/state";
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import { defaultKeymap, history, historyKeymap } from "npm:@codemirror/commands";
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import { bracketMatching, indentOnInput } from "npm:@codemirror/language";
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import { closeBrackets } from "npm:@codemirror/autocomplete";
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import { oneDark } from "npm:@codemirror/theme-one-dark";
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import wasm from "./wasm.ts"
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function tokenize(text: string) {
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try {
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return wasm.lex(text);
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} catch (e) {
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console.log(e)
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return []
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}
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}
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function compile(text: string): wasm.CompileResult {
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try {
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return wasm.compile(text);
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} catch (e) {
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console.log(e);
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// @ts-expect-error wasm defines extra cleanup
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return {log: [], log_formatted: ""};
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}
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}
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const tokenClass = (t: string) =>
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({
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comment: "tok-comment",
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keyword: "tok-keyword",
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error: "tok-error",
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ident: "tok-ident",
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punc: "tok-punc",
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string: "tok-string",
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lpar: "rb-",
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lbrace: "rb-",
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lbracket: "rb-",
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rpar: "rb-",
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rbrace: "rb-",
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rbracket: "rb-",
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}[t] || "tok-ident");
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function severityClass(sev: string) {
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const s = (sev || "error").toLowerCase();
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if (s === "warning") return "cm-diag-warning";
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if (s === "info") return "cm-diag-info";
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return "cm-diag-error";
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}
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function sevRank(sev: string) {
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if (sev === "error") return 3;
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if (sev === "warning") return 2;
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return 1;
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}
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function buildAnalysis(text: string, doc: Text) {
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const tokens = tokenize(text);
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const { log, log_formatted } = compile(text);
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// Build ONE Decoration set: syntax + diagnostics
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const marks = [];
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const docLen = doc.length;
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for (const tok of tokens) {
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const start = Math.max(0, Math.min(docLen, tok.start));
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const end = Math.max(start, Math.min(docLen, tok.end));
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let tc = tokenClass(tok.kind);
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if (tc === "rb-") {
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tc += tok.scope_level.toString();
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}
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if (end > start) {
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marks.push(Decoration.mark({ class: tc }).range(start, end));
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}
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}
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for (const d of log) {
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if (d.start === undefined || d.end === undefined) continue;
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const start = Math.max(0, Math.min(docLen, d.start));
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const endRaw = d.end == null ? d.start : d.end;
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const end = Math.max(start, Math.min(docLen, endRaw));
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const cls = severityClass(d.level);
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if (end > start) {
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marks.push(Decoration.mark({ class: cls }).range(start, end));
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} else {
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const end = Math.min(docLen, start + 1);
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if (end > start) marks.push(Decoration.mark({ class: cls }).range(start, end));
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}
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}
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const deco = Decoration.set(marks, true);
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return { tokens, log, log_formatted, deco };
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}
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const analysisField = StateField.define({
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create(state) {
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const text = state.doc.toString();
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return buildAnalysis(text, state.doc);
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},
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update(value, tr) {
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if (!tr.docChanged) return value;
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const text = tr.state.doc.toString();
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return buildAnalysis(text, tr.state.doc);
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},
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provide: (f) => EditorView.decorations.from(f, (v) => v.deco),
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});
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// ===================== Hover tooltip (uses cached diags) =====================
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const diagHover = hoverTooltip((view, pos) => {
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const { log } = view.state.field(analysisField);
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const hits = log.filter((d) => d.start !== undefined && d.end !== undefined && pos >= d.start && pos <= d.end);
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if (hits.length === 0) return null;
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const top = hits.reduce((a, b) => (sevRank(b.level) > sevRank(a.level) ? b : a), hits[0]);
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return {
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pos,
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end: pos,
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above: true,
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create() {
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const dom = document.createElement("div");
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dom.className = "cm-tooltip cm-tooltip-hover";
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const title = document.createElement("div");
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title.className = `tipTitle ${top.level}`;
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title.textContent =
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hits.length === 1 ? top.level.toUpperCase() : `${top.level.toUpperCase()} (${hits.length})`;
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const body = document.createElement("div");
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body.className = "tipBody";
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body.textContent = hits
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.slice()
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.sort((a, b) => sevRank(b.level) - sevRank(a.level))
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.map((h) => `[${h.level.toUpperCase()}] ${h.message}`)
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.join("\n");
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dom.appendChild(title);
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dom.appendChild(body);
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return { dom };
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},
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};
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});
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function escapeHtml(s: string) {
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return s
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.replace(/&/g, "&")
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.replace(/</g, "<")
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.replace(/>/g, ">");
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}
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function ansiToHtml(input: string) {
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// deno-lint-ignore no-control-regex
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const ESC_RE = /\x1b\[([0-9;]*)m/g;
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let out = "";
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let lastIndex = 0;
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// current style state
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let fg: number|null = null; // e.g. 31, 92
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let bg: number|null = null; // e.g. 41
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let bold = false;
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let dim = false;
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function openSpanIfNeeded(text: string) {
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if (text.length === 0) return "";
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const classes = [];
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if (bold) classes.push("ansi-bold");
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if (dim) classes.push("ansi-dim");
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if (fg != null) classes.push(`ansi-fg-${fg}`);
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if (bg != null) classes.push(`ansi-bg-${bg}`);
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if (classes.length === 0) return escapeHtml(text);
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return `<span class="${classes.join(" ")}">${escapeHtml(text)}</span>`;
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}
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function applyCodes(codes: string[]) {
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if (codes.length === 0) codes = ["0"];
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for (const c of codes) {
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const code = Number(c);
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if (Number.isNaN(code)) continue;
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if (code === 0) {
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fg = null; bg = null; bold = false; dim = false;
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} else if (code === 1) {
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bold = true;
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} else if (code === 2) {
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dim = true;
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} else if (code === 22) {
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bold = false; dim = false;
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} else if (code === 39) {
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fg = null;
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} else if (code === 49) {
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bg = null;
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} else if ((code >= 30 && code <= 37) || (code >= 90 && code <= 97)) {
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fg = code;
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} else if ((code >= 40 && code <= 47) || (code >= 100 && code <= 107)) {
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bg = code;
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}
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}
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}
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let m;
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while ((m = ESC_RE.exec(input)) !== null) {
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const chunk = input.slice(lastIndex, m.index);
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out += openSpanIfNeeded(chunk);
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const codes = m[1] ? m[1].split(";") : [];
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applyCodes(codes);
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lastIndex = ESC_RE.lastIndex;
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}
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out += openSpanIfNeeded(input.slice(lastIndex));
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return out;
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}
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// @ts-expect-error bad library
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function formatTerminal(view) {
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const term = document.getElementById("terminal");
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if (!term) return;
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const { log, log_formatted } = view.state.field(analysisField);
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let s = "";
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s += `\x1b[90m[compile]\x1b[0m ${log.length} diagnostics\n`;
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term.innerHTML = ansiToHtml(s + log_formatted);
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}
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const terminalPlugin = ViewPlugin.fromClass(
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class {
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// @ts-expect-error bad library
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constructor(view) {
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// @ts-expect-error bad library
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this.view = view;
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formatTerminal(view);
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}
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// @ts-expect-error bad library
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update(update) {
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if (update.docChanged) formatTerminal(update.view);
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}
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}
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);
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const initialText = `type=NPDA
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Q = {q0, q1} // states
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E = {a, b} // alphabet
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T = {z0, A, B} // stack
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q0 = q0
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z0 = z0
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// construct all possible permutations of A's and B's
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d(q0, epsilon, z0) = { (q0, [A z0]), (q0, [B z0]) }
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d(q0, epsilon, A) = { (q0, [A A]), (q0, [B A]) }
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d(q0, epsilon, B) = { (q0, [A B]), (q0, [B B]) }
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// transition to q1
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d(q0, epsilon, z0) = { (q1, z0) }
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d(q0, epsilon, A) = { (q1, A) }
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d(q0, epsilon, B) = { (q1, B) }
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// consume stack until empty
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d(q1, a, A) = { (q1, epsilon) }
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d(q1, b, B) = { (q1, epsilon) }
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`;
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const state = EditorState.create({
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doc: initialText,
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extensions: [
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lineNumbers(),
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highlightActiveLineGutter(),
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history(),
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indentOnInput(),
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bracketMatching(),
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closeBrackets(),
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keymap.of([...defaultKeymap, ...historyKeymap]),
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oneDark,
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analysisField,
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diagHover,
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terminalPlugin,
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EditorView.lineWrapping,
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],
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});
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const editor = new EditorView({
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state,
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parent: document.getElementById("editor")!,
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});
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function setDefaultLayoutWeights() {
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const vh = globalThis.window.innerHeight;
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const vw = globalThis.window.innerWidth;
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// Canvas: 30% of screen height
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const canvasH = Math.round(vh * 0.60);
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// Terminal: 35% of width
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const termW = Math.round(vw * 0.30);
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const app = document.getElementById("app")!;
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app.style.setProperty("--canvasH", `${canvasH}px`);
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app.style.setProperty("--termW", `${termW}px`);
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}
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setDefaultLayoutWeights();
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(function enableLayoutSplitters() {
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const app = document.getElementById("app")!;
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const hSplit = document.getElementById("hSplit")!;
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const vSplit = document.getElementById("vSplit")!;
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// const canvas = document.getElementById("canvas");
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const canvasPane = document.getElementById("canvasPane");
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let draggingH = false;
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let draggingV = false;
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hSplit.addEventListener("mousedown", (e) => {
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draggingH = true;
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document.body.style.cursor = "row-resize";
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e.preventDefault();
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});
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vSplit.addEventListener("mousedown", (e) => {
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draggingV = true;
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document.body.style.cursor = "col-resize";
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e.preventDefault();
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});
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globalThis.window.addEventListener("mousemove", (e) => {
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const rect = app.getBoundingClientRect();
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if (draggingH) {
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const y = e.clientY - rect.top;
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const minCanvas = 80;
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const minBottom = 180;
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const maxCanvas = rect.height - 8 - minBottom;
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const canvasH = Math.max(minCanvas, Math.min(maxCanvas, y));
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app.style.setProperty("--canvasH", `${canvasH}px`);
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}
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if (draggingV) {
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const bottomPane = document.getElementById("bottomPane")!;
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const r = bottomPane.getBoundingClientRect();
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const x = e.clientX - r.left;
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const minTerm = 220;
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const maxTerm = r.width - 8 - 220;
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const termW = Math.max(minTerm, Math.min(maxTerm, r.width - x));
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app.style.setProperty("--termW", `${termW}px`);
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}
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});
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globalThis.window.addEventListener("mouseup", () => {
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draggingH = false;
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draggingV = false;
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document.body.style.cursor = "";
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});
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})();
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