highlight paths

web/root/src/highlight.ts

@@ -57,12 +57,20 @@ bus.on("automata/update", _ => {
     bus.emit("highlight/all/remove", undefined);
 })
 
+function decoForKind(kind: HighlightKind): string {
+    return `cm-highlight-${kind}`;
+}
+
 bus.on("highlight/one/add", (highlight) => {
     const key = asKey(highlight);
     if (current.has(key)) {
         current.get(key)!.count += 1;
     } else {
         current.set(key, { count: 1, ...highlight });
+        
+        const cname = decoForKind(highlight.kind);
+        globalThis.document.querySelectorAll(`[highlight-span="${highlight.span[0]}:${highlight.span[1]}"]`).forEach(el => el.classList.add(cname))
+
         bus.emit("highlight/update", undefined);
     }
 });
@@ -73,6 +81,10 @@ bus.on("highlight/one/remove", (highlight) => {
         value.count -= 1;
         if (value.count === 0) {
             current.delete(key);
+
+            const cname = decoForKind(highlight.kind);
+            globalThis.document.querySelectorAll(`[highlight-span="${highlight.span[0]}:${highlight.span[1]}"]`).forEach(el => el.classList.remove(cname))
+
             bus.emit("highlight/update", undefined);
         }
     }
@@ -80,6 +92,24 @@ bus.on("highlight/one/remove", (highlight) => {
 bus.on("highlight/all/remove", (_) => {
     if (current.size !== 0) {
         current.clear();
+
+        const warning = decoForKind("warning");
+        const focus = decoForKind("focus");
+        const success = decoForKind("success");
+        const error = decoForKind("error");
+        globalThis.document.querySelectorAll(`[highlight-span"]`).forEach(el => {
+            el.classList.remove(warning)
+            el.classList.remove(focus)
+            el.classList.remove(success)
+            el.classList.remove(error)
+        })
+
+
         bus.emit("highlight/update", undefined);
     }
 });
+
+
+export function highlightable(span: Span, text: string): string{
+  return `<span class = "cm-highlight" highlight-span="${span[0]}:${span[1]}">${text}</span>`
+}

web/root/src/paths.ts

@@ -1,14 +1,12 @@
 import { bus } from "./bus.ts";
 import { DELTA } from "./constants.ts";
+import { highlightable } from "./highlight.ts";
 import type { Sim } from "./simulation.ts";
 import type { FaState } from "./simulation/fa.ts";
 import type { PdaState } from "./simulation/pda.ts";
 import type { TmState } from "./simulation/tm.ts";
 
-type AnyState = {
-  repr: string;
-  path: readonly unknown[];
-};
+
 
 function renderFaPath(state: FaState, index: number) {
   const details = document.createElement("details");
@@ -30,7 +28,11 @@ function renderFaPath(state: FaState, index: number) {
     const div = document.createElement("div");
     div.className = "stepLine";
     const step = state.path[i];
-    div.textContent = `${i + 1}. ${DELTA}(${step.from_state}, ${step.from_letter}) = ${step.state}`;
+    
+    div.innerHTML = `${i + 1}. ` 
+      + highlightable(step.function, `${DELTA}(${step.from_state})`) 
+      + " = " 
+      + highlightable(step.transition, step.state);
     steps.appendChild(div);
   }
 
@@ -59,7 +61,11 @@ function renderPdaPath(state: PdaState, index: number) {
     const div = document.createElement("div");
     div.className = "stepLine";
     const step = state.path[i];
-    div.textContent = `${i + 1}. ${DELTA}(${step.from_state}, ${step.from_letter}, , ${step.from_stack}) = (${step.state}, [ ${step.stack.join(" ")} ])`;
+
+    div.innerHTML = `${i + 1}. ` 
+      + highlightable(step.function, `${DELTA}(${step.from_state}, ${step.from_letter}, , ${step.from_stack})`) 
+      + " = " 
+      + highlightable(step.transition, `(${step.state}, [ ${step.stack.join(" ")} ])`);
     steps.appendChild(div);
   }
 
@@ -88,7 +94,13 @@ function renderTmPath(state: TmState, index: number) {
     const div = document.createElement("div");
     div.className = "stepLine";
     const step = state.path[i];
-    div.textContent = `${i + 1}. ${DELTA}(${step.from_state}, ${step.from_symbol}) = (${step.state}, ${step.symbol}, ${step.direction})`;
+    div.setAttribute("highlight-span", "${}")
+
+    div.innerHTML = `${i + 1}. ` 
+      + highlightable(step.function, `${DELTA}(${step.from_state}, ${step.from_symbol})`) 
+      + " = " 
+      + highlightable(step.transition, `(${step.state}, ${step.symbol}, ${step.direction})`);
+    console.log(div.innerHTML);
     steps.appendChild(div);
   }
 
@@ -118,6 +130,7 @@ export function renderPaths(sim: Sim | undefined) {
   const runningCount = document.getElementById("runningCount")!;
   const rejectedCount = document.getElementById("rejectedCount")!;
 
+
   acceptedEl.innerHTML = "";
   runningEl.innerHTML = "";
   rejectedEl.innerHTML = "";