feat: cv2

package.json

@@ -35,25 +35,27 @@
   },
   "devDependencies": {
     "@codemirror/autocomplete": "^6.20.0",
+    "@codemirror/collab": "^6.1.1",
     "@codemirror/commands": "^6.10.1",
     "@codemirror/lang-javascript": "^6.2.4",
-    "@codemirror/language": "^6.11.3",
+    "@codemirror/language": "^6.12.1",
+    "@codemirror/lint": "^6.9.2",
     "@codemirror/merge": "^6.11.2",
-    "@codemirror/state": "^6.5.2",
-    "@codemirror/view": "^6.39.4",
+    "@codemirror/state": "^6.5.3",
+    "@codemirror/view": "^6.39.9",
     "@fontsource-variable/material-symbols-rounded": "^5.2.30",
     "@fontsource-variable/noto-sans-mono": "^5.2.10",
-    "@lezer/common": "^1.4.0",
+    "@lezer/common": "^1.5.0",
     "@lezer/generator": "^1.8.0",
     "@lezer/highlight": "^1.2.3",
-    "@lezer/lr": "^1.4.5",
+    "@lezer/lr": "^1.4.7",
     "@material/material-color-utilities": "^0.3.0",
     "@melt-ui/pp": "^0.3.2",
     "@melt-ui/svelte": "^0.86.6",
     "@modyfi/vite-plugin-yaml": "^1.1.1",
     "@sveltejs/adapter-static": "^3.0.10",
-    "@sveltejs/kit": "^2.49.2",
-    "@sveltejs/vite-plugin-svelte": "^6.2.1",
+    "@sveltejs/kit": "^2.49.3",
+    "@sveltejs/vite-plugin-svelte": "^6.2.3",
     "@tauri-apps/api": "^1.6.0",
     "@tauri-apps/cli": "^1.6.0",
     "@types/dom-view-transitions": "^1.0.6",
@@ -76,29 +78,29 @@
     "matrix-js-sdk": "^37.12.0",
     "npm-run-all": "^4.1.5",
     "prettier": "^3.7.4",
-    "prettier-plugin-css-order": "^2.1.2",
+    "prettier-plugin-css-order": "^2.2.0",
     "prettier-plugin-svelte": "^3.4.1",
     "rxjs": "^7.8.2",
-    "sass": "^1.97.0",
+    "sass": "^1.97.2",
     "semver": "^7.7.3",
-    "socket.io-client": "^4.8.1",
+    "socket.io-client": "^4.8.3",
     "stylelint": "^16.26.1",
     "stylelint-config-html": "^1.1.0",
     "stylelint-config-prettier-scss": "^1.0.0",
     "stylelint-config-recommended-scss": "^16.0.2",
     "stylelint-config-standard-scss": "^16.0.0",
-    "svelte": "5.37.1",
-    "svelte-check": "^4.3.4",
+    "svelte": "5.46.1",
+    "svelte-check": "^4.3.5",
     "svelte-preprocess": "^6.0.3",
     "tippy.js": "^6.3.7",
     "typesafe-i18n": "^5.26.2",
-    "typescript": "^5.8.3",
-    "vite": "^7.0.6",
+    "typescript": "^5.9.3",
+    "vite": "^7.3.1",
     "vite-plugin-mkcert": "^1.17.9",
-    "vite-plugin-pwa": "^1.0.2",
+    "vite-plugin-pwa": "^1.2.0",
     "vitest": "^4.0.16",
     "web-serial-polyfill": "^1.0.15",
-    "workbox-window": "^7.3.0"
+    "workbox-window": "^7.4.0"
   },
   "type": "module"
 }

src/lib/chord-editor/action-linter.ts

@@ -0,0 +1,135 @@
+import { linter, type Diagnostic } from "@codemirror/lint";
+import { parsedChordsField } from "./parsed-chords-plugin";
+
+export function actionLinter(config?: Parameters<typeof linter>[1]) {
+  const finalConfig: Parameters<typeof linter>[1] = {
+    ...config,
+    needsRefresh(update) {
+      return (
+        update.startState.field(parsedChordsField) !==
+        update.state.field(parsedChordsField)
+      );
+    },
+  };
+  return linter((view) => {
+    console.log("lint");
+    const diagnostics: Diagnostic[] = [];
+    const parsed = view.state.field(parsedChordsField);
+
+    for (const chord of parsed.chords) {
+      if (chord.disabled) {
+        diagnostics.push({
+          from: chord.range[0],
+          to: chord.range[1],
+          severity: "info",
+          markClass: "chord-ignored",
+          message: `Chord disabled`,
+        });
+      }
+      if (chord.compounds) {
+        for (const compound of chord.compounds) {
+          if (compound.actions.length === 0 && compound.parent) {
+            const replacement = view.state.doc.sliceString(
+              compound.parent.range[0],
+              compound.parent.input!.range[1],
+            );
+            diagnostics.push({
+              from: compound.range[0],
+              to: compound.range[1],
+              severity: "warning",
+              message: `Compound literal can be replaced with "${replacement}"`,
+              actions: [
+                {
+                  name: "Replace",
+                  apply(view, from, to) {
+                    view.dispatch({
+                      changes: {
+                        from,
+                        to,
+                        insert: replacement + "|",
+                      },
+                    });
+                  },
+                },
+              ],
+            });
+          }
+        }
+        const lastCompound = chord.compounds.at(-1);
+        if (lastCompound) {
+          const from = chord.range[0];
+          const to = lastCompound.range[1];
+          if (lastCompound.parent) {
+            diagnostics.push({
+              from,
+              to,
+              severity: "info",
+              markClass: "chord-child",
+              message: `Child of ${view.state.doc.sliceString(lastCompound.parent.range[0], lastCompound.parent.range[1])}`,
+              actions: [
+                {
+                  name: "Select Parent",
+                  apply(view) {
+                    view.dispatch({
+                      selection: {
+                        anchor: lastCompound.parent!.range[0],
+                      },
+                      scrollIntoView: true,
+                    });
+                  },
+                },
+              ],
+            });
+          } else {
+            diagnostics.push({
+              from,
+              to,
+              severity: "warning",
+              message: `Orphan compound`,
+            });
+          }
+        }
+      }
+      if (chord.children) {
+        diagnostics.push({
+          from: chord.range[0],
+          to: chord.range[1],
+          severity: "info",
+          markClass: "chord-parent",
+          message: `Parent of ${chord.children.length} compound(s)`,
+          actions: chord.children.map((child) => ({
+            name: `Go to ${view.state.doc.sliceString(child.range[0], child.range[1])}`,
+            apply(view) {
+              view.dispatch({
+                selection: {
+                  anchor: child.range[0],
+                },
+                scrollIntoView: true,
+              });
+            },
+          })),
+        });
+      }
+      if (chord.phrase) {
+        if (!chord.phrase.originalValue) {
+          diagnostics.push({
+            from: chord.range[0],
+            to: chord.range[1],
+            severity: "info",
+            markClass: "chord-new",
+            message: `New Chord`,
+          });
+        } else if (chord.phrase.originalValue !== chord.phrase.value) {
+          diagnostics.push({
+            from: chord.range[0],
+            to: chord.range[1],
+            severity: "info",
+            markClass: "chord-unchanged",
+            message: `Phrase changed`,
+          });
+        }
+      }
+    }
+    return diagnostics;
+  }, finalConfig);
+}

src/lib/chord-editor/action-meta-plugin.ts

@@ -0,0 +1,10 @@
+import { KEYMAP_CODES, KEYMAP_IDS } from "$lib/serial/keymap-codes";
+import { derived } from "svelte/store";
+import { reactiveStateField } from "./store-state-field";
+
+const actionMeta = derived([KEYMAP_IDS, KEYMAP_CODES], ([ids, codes]) => ({
+  ids,
+  codes,
+}));
+
+export const actionMetaPlugin = reactiveStateField(actionMeta);

src/lib/chord-editor/action-plugin.ts

@@ -7,33 +7,34 @@ import {
 } from "@codemirror/view";
 import { mount, unmount } from "svelte";
 import Action from "$lib/components/Action.svelte";
-import { syntaxTree } from "@codemirror/language";
 import type { Range } from "@codemirror/state";
+import { parsedChordsField } from "./parsed-chords-plugin";
+import { iterActions } from "./parse-meta";
 
 export class ActionWidget extends WidgetType {
   component?: {};
-  element?: HTMLElement;
 
   constructor(readonly id: string | number) {
     super();
     this.id = id;
   }
 
-  override eq(other: ActionWidget) {
+  /*override eq(other: ActionWidget) {
     return this.id == other.id;
-  }
+  }*/
 
   toDOM() {
-    if (!this.element) {
-      this.element = document.createElement("span");
-      this.element.style.paddingInline = "2px";
-
-      this.component = mount(Action, {
-        target: this.element,
-        props: { action: this.id, display: "keys", inText: true },
-      });
+    if (this.component) {
+      unmount(this.component);
     }
-    return this.element;
+    const element = document.createElement("span");
+    element.style.paddingInline = "2px";
+
+    this.component = mount(Action, {
+      target: element,
+      props: { action: this.id, display: "keys", inText: true },
+    });
+    return element;
   }
 
   override ignoreEvent() {
@@ -50,29 +51,24 @@ export class ActionWidget extends WidgetType {
 function actionWidgets(view: EditorView) {
   const widgets: Range<Decoration>[] = [];
   for (const { from, to } of view.visibleRanges) {
-    syntaxTree(view.state).iterate({
-      from,
-      to,
-      enter: (node) => {
-        if (node.name !== "ExplicitAction") return;
-        const value =
-          node.node.getChild("ActionId") ??
-          node.node.getChild("HexNumber") ??
-          node.node.getChild("DecimalNumber");
-        if (!value) return;
-        if (!node.node.getChild("ExplicitDelimEnd")) {
+    for (const chord of view.state.field(parsedChordsField).chords) {
+      if (chord.range[1] < from || chord.range[0] > to) continue;
+      iterActions(chord, (action) => {
+        if (
+          view.state.selection.ranges.some(
+            (r) => r.from <= action.range[1] && r.to > action.range[0],
+          )
+        ) {
           return;
         }
-
-        const id = view.state.doc.sliceString(value.from, value.to);
-        let deco = Decoration.replace({
-          widget: new ActionWidget(
-            value.name === "ActionId" ? id : parseInt(id),
-          ),
-        });
-        widgets.push(deco.range(node.from, node.to));
-      },
-    });
+        if (action.info && action.explicit) {
+          const deco = Decoration.replace({
+            widget: new ActionWidget(action.code),
+          });
+          widgets.push(deco.range(action.range[0], action.range[1]));
+        }
+      });
+    }
   }
   return Decoration.set(widgets);
 }
@@ -89,7 +85,9 @@ export const actionPlugin = ViewPlugin.fromClass(
       if (
         update.docChanged ||
         update.viewportChanged ||
-        syntaxTree(update.startState) != syntaxTree(update.state)
+        update.selectionSet ||
+        update.startState.field(parsedChordsField) !=
+          update.state.field(parsedChordsField)
       )
         this.decorations = actionWidgets(update.view);
     }

src/lib/chord-editor/action-serializer.ts

@@ -1,16 +1,308 @@
 import { KEYMAP_CODES, type KeyInfo } from "$lib/serial/keymap-codes";
+import type { CharaChordFile } from "$lib/share/chara-file";
+import { syntaxTree } from "@codemirror/language";
+import type { EditorState } from "@codemirror/state";
 import { get } from "svelte/store";
+import {
+  composeChordInput,
+  hasConcatenator,
+  hashChord,
+  willBeValidChordInput,
+} from "$lib/serial/chord";
+import type {
+  ActionMeta,
+  ChordMeta,
+  MetaRange,
+  ParseResult,
+} from "./parse-meta";
 
 export function canUseIdAsString(info: KeyInfo): boolean {
-  return !!info.id && /^[a-zA-Z_][a-zA-Z0-9_]*$/.test(info.id);
+  return !!info.id && /^[^>\n]+$/.test(info.id);
 }
 
 export function actionToValue(action: number | KeyInfo) {
   const info =
     typeof action === "number" ? get(KEYMAP_CODES).get(action) : action;
   if (info && info.id?.length === 1)
-    return /^[<>\\\s]$/.test(info.id) ? `\\${info.id}` : info.id;
+    return /^[<>|\\\s]$/.test(info.id) ? `\\${info.id}` : info.id;
   if (!info || !canUseIdAsString(info))
     return `<0x${(info?.code ?? action).toString(16).padStart(2, "0")}>`;
   return `<${info.id}>`;
 }
+
+export function parseChordMeta(
+  data: EditorState,
+  ids: Map<string, KeyInfo>,
+  codes: Map<number, KeyInfo>,
+): ChordMeta[] {
+  console.time("parseChordTree");
+  const result: ChordMeta[] = [];
+
+  let current: ChordMeta = { range: [0, 0], valid: false };
+  let actions: ActionMeta[] = [];
+  let actionRange: MetaRange | undefined = undefined;
+
+  syntaxTree(data)
+    .cursor()
+    .iterate(
+      (node) => {
+        if (node.name === "Action") {
+          actionRange = [node.from, node.to];
+        } else if (node.name === "ChordPhrase") {
+          current.phrase = {
+            range: [node.from, node.to],
+            value: [],
+            valid: true,
+            actions: [],
+            hasConcatenator: false,
+          };
+        } else if (node.name === "Chord") {
+          current = { range: [node.from, node.to], valid: false };
+        } else if (node.name === "ActionString") {
+          actions = [];
+        } else if (node.name === "HexNumber") {
+          const hexString = data.doc.sliceString(node.from, node.to);
+          const code = Number.parseInt(hexString, 16);
+          const parentNode = node.node.parent;
+          if (parentNode?.type.name === "CompoundLiteral") {
+            current.compounds ??= [];
+            current.compounds.push({
+              range: [parentNode.from, parentNode.to],
+              value: code,
+              actions: [],
+              valid: true, // TODO: validate compound literal
+            });
+          } else {
+            const valid = !(Number.isNaN(code) || code < 0 || code > 1023);
+            actions.push({
+              code,
+              info: codes.get(code),
+              explicit: true,
+              valid,
+              range: actionRange!,
+            });
+          }
+        } else if (
+          node.name === "ActionId" ||
+          node.name === "SingleLetter" ||
+          node.name === "EscapedLetter"
+        ) {
+          const id = data.doc.sliceString(node.from, node.to);
+          const info = ids.get(id);
+          const value: ActionMeta = {
+            code: info?.code ?? Number.NaN,
+            info,
+            valid: info !== undefined,
+            range: actionRange!,
+          };
+          if (node.name === "ActionId") {
+            value.explicit = true;
+          }
+          actions.push(value);
+        }
+      },
+      (node) => {
+        if (node.name === "Chord") {
+          result.push(current);
+          if (current.phrase) {
+            current.phrase.actions = actions;
+            current.phrase.value = actions.map(({ code }) => code);
+            current.phrase.valid = actions.every(({ valid }) => valid);
+            current.phrase.hasConcatenator = hasConcatenator(
+              current.phrase.value,
+              codes,
+            );
+          }
+          current.valid =
+            (current.phrase?.valid ?? false) && (current.input?.valid ?? false);
+          if (!current.valid) {
+            current.disabled = true;
+          }
+        } else if (node.name === "CompoundInput") {
+          const lastCompound = current.compounds?.at(-1);
+          current.compounds ??= [];
+          current.compounds.push({
+            range: [node.from, node.to],
+            value: hashChord(
+              composeChordInput(
+                actions.map(({ code }) => code),
+                lastCompound?.value,
+              ),
+            ),
+            actions,
+            valid:
+              willBeValidChordInput(
+                actions.length,
+                lastCompound !== undefined,
+              ) && actions.every(({ valid }) => valid),
+          });
+        } else if (node.name === "ChordInput") {
+          const lastCompound = current.compounds?.at(-1);
+          current.input = {
+            range: [node.from, node.to],
+            value: composeChordInput(
+              actions.map(({ code }) => code),
+              lastCompound?.value,
+            ),
+            valid:
+              willBeValidChordInput(
+                actions.length,
+                lastCompound !== undefined,
+              ) && actions.every(({ valid }) => valid),
+            actions,
+          };
+        }
+      },
+    );
+
+  console.timeEnd("parseChordTree");
+  return result;
+}
+
+function resolveChordOverrides(chords: ChordMeta[]) {
+  console.time("resolveOverrides");
+  const seen = new Map<string, ChordMeta>();
+  for (const info of chords) {
+    if (!info.input || info.disabled) continue;
+    const key = JSON.stringify(info.input.value);
+    const override = seen.get(key);
+    if (override) {
+      override.overrides ??= [];
+      override.overrides.push(info);
+      info.overriddenBy = override;
+      info.disabled = true;
+    } else {
+      seen.set(key, info);
+    }
+  }
+  console.timeEnd("resolveOverrides");
+}
+
+function resolveChordAliases(chords: ChordMeta[]) {
+  console.time("resolveAliases");
+  const aliases = new Map<string, ChordMeta[]>();
+  for (const info of chords) {
+    if (!info.phrase) continue;
+    const key = JSON.stringify(info.phrase.value);
+    const list = aliases.get(key) ?? [];
+    list.push(info);
+    aliases.set(key, list);
+  }
+  for (const aliasList of aliases.values()) {
+    if (aliasList.length > 1) {
+      for (const info of aliasList) {
+        info.aliases = aliasList.filter((i) => i !== info);
+      }
+    }
+  }
+  console.timeEnd("resolveAliases");
+}
+
+function resolveCompoundParents(chords: ChordMeta[]) {
+  console.time("resolveCompoundParents");
+  const compounds = new Map<number, ChordMeta>();
+  for (const chord of chords) {
+    if (chord.input && !chord.disabled) {
+      compounds.set(hashChord(chord.input.value), chord);
+    }
+  }
+  for (const chord of chords) {
+    if (chord.compounds) {
+      for (const compound of chord.compounds) {
+        const parent = compounds.get(compound.value);
+        if (parent) {
+          compound.parent = parent;
+        }
+      }
+      const lastCompound = chord.compounds?.at(-1);
+      if (lastCompound && lastCompound.parent) {
+        lastCompound.parent.children ??= [];
+        lastCompound.parent.children.push(chord);
+      }
+    }
+  }
+  console.timeEnd("resolveCompoundParents");
+}
+
+export function resolveChanges(
+  chords: ChordMeta[],
+  deviceChords: CharaChordFile["chords"],
+): CharaChordFile["chords"] {
+  console.time("resolveChanges");
+  const removed: CharaChordFile["chords"] = [];
+  const info = new Map<string, ChordMeta>();
+  for (const chord of chords) {
+    if (chord.input && chord.phrase && !chord.disabled) {
+      info.set(
+        JSON.stringify([chord.input.value, chord.phrase?.value ?? []]),
+        chord,
+      );
+      info.set(JSON.stringify(chord.input.value), chord);
+    }
+  }
+  for (const deviceChord of deviceChords) {
+    const exact = info.get(JSON.stringify(deviceChord));
+    if (exact) {
+      exact.phrase!.originalValue = exact.phrase!.value;
+      continue;
+    }
+    const byInput = info.get(JSON.stringify(deviceChord[0]));
+    if (byInput) {
+      byInput.phrase!.originalValue = deviceChord[1];
+      continue;
+    }
+    removed.push(deviceChord);
+  }
+
+  console.timeEnd("resolveChanges");
+  return removed;
+}
+
+export function parseCharaChords(
+  data: EditorState,
+  ids: Map<string, KeyInfo>,
+  codes: Map<number, KeyInfo>,
+  deviceChords: CharaChordFile["chords"],
+): ParseResult {
+  console.time("parseTotal");
+
+  const chords = parseChordMeta(data, ids, codes);
+  resolveChordOverrides(chords);
+  resolveChordAliases(chords);
+  resolveCompoundParents(chords);
+  const removed = resolveChanges(chords, deviceChords);
+
+  /*for (let i = 0; i < metas.length; i++) {
+    const [, compound] = splitCompound(chords[i]![0]);
+    if (
+      compound !== undefined &&
+      (!compoundInputs.has(compound) || orphanCompounds.has(compound))
+    ) {
+      metas[i]!.orphan = true;
+    }
+  }
+
+  const removed: CharaChordFile["chords"] = [];
+  for (let deviceChord of deviceChords) {
+    const key = JSON.stringify(deviceChord[0]);
+    if (!keys.has(key)) {
+      removed.push(deviceChord);
+    } else {
+      const index = keys.get(key)!;
+      const meta = metas[index]!;
+      if (
+        JSON.stringify(deviceChord[1]) !==
+        JSON.stringify(chords[keys.get(key)!]![1])
+      ) {
+        meta.originalPhrase = deviceChord[1];
+      } else {
+        meta.unchanged = true;
+      }
+    }
+  }*/
+
+  console.timeEnd("parseTotal");
+
+  console.log(chords);
+  return { chords, removed };
+}

src/lib/chord-editor/autocomplete.ts

@@ -1,72 +1,39 @@
-import { KEYMAP_CATEGORIES, KEYMAP_CODES } from "$lib/serial/keymap-codes";
-import type {
-  Completion,
-  CompletionSection,
-  CompletionSource,
-} from "@codemirror/autocomplete";
-import { derived, get } from "svelte/store";
-import { actionToValue, canUseIdAsString } from "./action-serializer";
+import {
+  EditorView,
+  ViewPlugin,
+  ViewUpdate,
+  type PluginValue,
+} from "@codemirror/view";
+import { syntaxTree } from "@codemirror/language";
+import type { EditorState } from "@codemirror/state";
 
-const completionSections = derived(
-  KEYMAP_CATEGORIES,
-  (categories) =>
-    new Map(
-      categories.map(
-        (category) =>
-          [
-            category,
-            {
-              name: category.name,
-            } satisfies CompletionSection,
-          ] as const,
-      ),
-    ),
-);
+export function actionAutocompletePlugin(
+  query: (query: string | undefined) => void,
+) {
+  return ViewPlugin.fromClass(
+    class implements PluginValue {
+      constructor(readonly view: EditorView) {}
 
-export const actionAutocompleteItems = derived(
-  [KEYMAP_CODES, completionSections],
-  ([codes, sections]) =>
-    codes
-      .values()
-      .map((info) => {
-        const canUseId = canUseIdAsString(info);
-        const completionValue =
-          (canUseId && info.id) ||
-          `0x${info.code.toString(16).padStart(2, "0")}`;
-        return {
-          label:
-            [
-              canUseId || !info.id ? undefined : `"${info.id}"`,
-              info.title,
-              info.variant?.replace(/^[a-z]/g, (c) => c.toUpperCase()),
-            ]
-              .filter(Boolean)
-              .join(" ") || completionValue,
-          detail: actionToValue(info),
-          section: info.category ? sections.get(info.category) : undefined,
-          info: info.description,
-          type: "keyword",
-          apply: completionValue + ">",
-        } satisfies Completion;
-      })
-      .filter(
-        (item) => typeof item.label === "string" && item.apply !== undefined,
-      )
-      .toArray(),
-);
+      update(update: ViewUpdate) {
+        query(this.resolveAutocomplete(update.state));
+      }
 
-export const actionAutocomplete = ((context) => {
-  let word = context.tokenBefore([
-    "ExplicitDelimStart",
-    "ActionId",
-    "HexNumber",
-    "DecimalNumber",
-  ]);
-  if (!word) return null;
-  console.log(get(actionAutocompleteItems));
-  return {
-    from: word.type.name === "ExplicitDelimStart" ? word.to : word.from,
-    validFor: /^<?[a-zA-Z0-9_]*$/,
-    options: get(actionAutocompleteItems),
-  };
-}) satisfies CompletionSource;
+      resolveAutocomplete(state: EditorState): string | undefined {
+        if (state.selection.ranges.length !== 1) return;
+        const from = state.selection.ranges[0]!.from;
+        const to = state.selection.ranges[0]!.to;
+        if (from !== to) return;
+        const tree = syntaxTree(state);
+        const node = tree.resolveInner(from, -1).parent;
+        if (node?.name !== "ExplicitAction") return;
+        if (node.getChild("ExplicitDelimEnd")) return;
+        const queryNode = node.getChild("ExplicitDelimStart")?.nextSibling;
+        return (
+          (queryNode
+            ? state.doc.sliceString(queryNode.from, queryNode.to)
+            : undefined) || undefined
+        );
+      }
+    },
+  );
+}

src/lib/chord-editor/changes-decorations-plugin.ts

@@ -0,0 +1,23 @@
+import { EditorView, Decoration, type DecorationSet } from "@codemirror/view";
+import { StateField } from "@codemirror/state";
+import { parsedChordsEffect } from "./parsed-chords-plugin";
+
+const changedMark = Decoration.mark({ class: "cm-changed" });
+
+const chordMetaMark = StateField.define<DecorationSet>({
+  create() {
+    return Decoration.none;
+  },
+  update(decorations, tr) {
+    const newChords = tr.effects.findLast((e) => e.is(parsedChordsEffect));
+    if (!newChords) {
+      return decorations.map(tr.changes);
+    }
+    return newChords.value.meta.map(meta => {
+      if (meta.originalPhrase) {
+    return underlineMark.range(meta.from, meta.to);
+}
+});
+  },
+  provide: (f) => EditorView.decorations.from(f),
+});

src/lib/chord-editor/changes-panel.ts

@@ -0,0 +1,39 @@
+import type { EditorState } from "@codemirror/state";
+import { EditorView, showPanel, type Panel } from "@codemirror/view";
+import { parsedChordsField } from "./parsed-chords-plugin";
+
+function getChanges(state: EditorState): string {
+  const parsed = state.field(parsedChordsField);
+  const added = parsed.chords.reduce(
+    (acc, chord) =>
+      acc + (chord.phrase && chord.phrase.originalValue === undefined ? 1 : 0),
+    0,
+  );
+  const changed = parsed.chords.reduce(
+    (acc, chord) =>
+      acc +
+      (chord.phrase &&
+      chord.phrase.originalValue &&
+      chord.phrase.originalValue !== chord.phrase.value
+        ? 1
+        : 0),
+    0,
+  );
+  const removed = parsed.removed.length;
+  return `+${added} ~${changed} -${removed} (${parsed.chords.length} total)`;
+}
+
+function wordCountPanel(view: EditorView): Panel {
+  let dom = document.createElement("div");
+  dom.textContent = getChanges(view.state);
+  return {
+    dom,
+    update(update) {
+      dom.textContent = getChanges(update.state);
+    },
+  };
+}
+
+export function changesPanel() {
+  return showPanel.of(wordCountPanel);
+}

src/lib/chord-editor/changes-plugin.ts

@@ -1,17 +0,0 @@
-import {
-  EditorView,
-  ViewPlugin,
-  ViewUpdate,
-  type PluginValue,
-} from "@codemirror/view";
-
-export const changesPlugin = ViewPlugin.fromClass(
-  class implements PluginValue {
-    constructor(readonly view: EditorView) {}
-
-    update(update: ViewUpdate) {}
-  },
-  {
-    eventHandlers: {},
-  },
-);

src/lib/chord-editor/chord-delim-plugin.ts

@@ -26,7 +26,7 @@ export class DelimWidget extends WidgetType {
 
   toDOM() {
     if (!this.element) {
-      this.element = document.createElement("span");
+      /*this.element = document.createElement("span");
       this.element.innerHTML =
         " ⇛" + (this.hasConcatenator ? "" : " ");
       this.element.style.scale = "1.8";
@@ -41,7 +41,9 @@ export class DelimWidget extends WidgetType {
           props: { action: 574, display: "keys", inText: true, ghost: true },
         });
         this.element.appendChild(button);
-      }
+      }*/
+      this.element = document.createElement("div");
+      this.element.style.breakAfter = "column";
     }
     return this.element;
   }

src/lib/chord-editor/chord-sync-plugin.ts

@@ -0,0 +1,32 @@
+import type { CharaChordFile } from "$lib/share/chara-file";
+import { StateEffect, StateField } from "@codemirror/state";
+
+export const chordSyncEffect = StateEffect.define<CharaChordFile["chords"]>();
+
+export const deviceChordField = StateField.define<CharaChordFile["chords"]>({
+  create() {
+    return [];
+  },
+  update(value, transaction) {
+    // save initial device chords
+    // compare new device chords with initial device chords
+    // take changed/new/removed chords
+    // compare current editor chords with initial device chords
+    // compare two change sets
+    // apply removals if the chord didn't change on either end
+    // apply
+    return (
+      transaction.effects.findLast((it) => it.is(chordSyncEffect))?.value ??
+      value
+    );
+  },
+  compare(a, b) {
+    return JSON.stringify(a) === JSON.stringify(b);
+  },
+  toJSON(value) {
+    return value;
+  },
+  fromJSON(value) {
+    return value;
+  },
+});

src/lib/chord-editor/chords-grammar-plugin.ts

@@ -5,7 +5,6 @@ import {
   HighlightStyle,
 } from "@codemirror/language";
 import { styleTags, tags } from "@lezer/highlight";
-import { actionAutocomplete } from "./autocomplete";
 
 export const chordHighlightStyle = HighlightStyle.define([
   {
@@ -51,7 +50,5 @@ export const chordLanguage = LRLanguage.define({
 });
 
 export function chordLanguageSupport() {
-  return new LanguageSupport(chordLanguage, [
-    chordLanguage.data.of({ autocomplete: actionAutocomplete }),
-  ]);
+  return new LanguageSupport(chordLanguage, [chordLanguage.data.of({})]);
 }

src/lib/chord-editor/chords.grammar

@@ -1,27 +1,43 @@
 @top Program { Chord* }
 
-ExplicitAction { ExplicitDelimStart (HexNumber | DecimalNumber | ActionId) ExplicitDelimEnd }
+ExplicitAction { ExplicitDelimStart (HexNumber | ActionId) ExplicitDelimEnd }
 EscapedSingleAction { Escape EscapedLetter }
 Action { SingleLetter | ExplicitAction | EscapedSingleAction }
-ActionString { Action* }
-ChordInput { (ActionString CompoundDelim)* ActionString }
+
+ActionString { Action+ }
+
+CompoundLiteral { CompoundDelim HexNumber CompoundDelim }
+CompoundInput { ActionString CompoundDelim }
+
+ChordInput { CompoundLiteral? CompoundInput* ActionString }
 ChordPhrase { ActionString }
+
 Chord { ChordInput PhraseDelim ChordPhrase ChordDelim }
 
+@skip {
+  Space
+}
+
 @tokens {
-  @precedence {HexNumber, DecimalNumber}
-  @precedence {CompoundDelim, PhraseDelim, ExplicitDelimStart, ChordDelim, SingleLetter}
-  @precedence {EscapedLetter}
+  @precedence { HexNumber, ActionId }
+  @precedence { Space, Escape }
+  @precedence { Space, SingleLetter }
+  @precedence { Escape, SingleLetter }
+  @precedence { CompoundDelim, SingleLetter }
+  @precedence { ActionId, Space }
+  @precedence { EscapedLetter, Space }
+
+  Space {" "}
   ExplicitDelimStart {"<"}
   ExplicitDelimEnd {">"}
-  CompoundDelim {"+>"}
+  CompoundDelim {"|"}
   PhraseDelim {"=>"}
   Escape { "\\" }
   HexNumber { "0x" $[a-fA-F0-9]+ }
-  DecimalNumber { $[0-9]+ }
-  ActionId { $[a-zA-Z_]$[a-zA-Z0-9_]* }
-  SingleLetter { ![\\] }
-  EscapedLetter { ![] }
-  ChordDelim { ($[\n] | @eof) }
+  ActionId { ![\n>]+ }
+  SingleLetter { ![\n<] }
+  EscapedLetter { ![\n] }
+  ChordDelim { ("\n" | @eof) }
 }
 
+@detectDelim

src/lib/chord-editor/parse-meta.ts

@@ -0,0 +1,172 @@
+import type { KeyInfo } from "$lib/serial/keymap-codes";
+import type { CharaChordFile } from "$lib/share/chara-file";
+import type { ChangeDesc } from "@codemirror/state";
+
+export type MetaRange = [from: number, to: number];
+
+function mapMetaRange(range: MetaRange, change: ChangeDesc): MetaRange {
+  const newFrom = change.mapPos(range[0]);
+  const newTo = change.mapPos(range[1]);
+  if (newFrom === range[0] && newTo === range[1]) {
+    return range;
+  }
+  return [newFrom, newTo];
+}
+
+export interface ActionMeta {
+  code: number;
+  info?: KeyInfo;
+  explicit?: boolean;
+  range: MetaRange;
+  valid: boolean;
+}
+
+function mapActionMeta(action: ActionMeta, change: ChangeDesc): ActionMeta {
+  const newRange = mapMetaRange(action.range, change);
+  if (newRange === action.range) {
+    return action;
+  }
+  return {
+    ...action,
+    range: newRange,
+  };
+}
+
+function mapArray<T>(
+  array: T[],
+  change: ChangeDesc,
+  mapFn: (action: T, change: ChangeDesc) => T,
+): T[] {
+  let changed = false;
+  const newArray = array.map((value) => {
+    const newValue = mapFn(value, change);
+    if (newValue !== value) {
+      changed = true;
+      return newValue;
+    }
+    return value;
+  });
+  if (changed) {
+    return newArray;
+  }
+  return array;
+}
+
+export interface ActionStringMeta<T> {
+  range: MetaRange;
+  value: T;
+  valid: boolean;
+  actions: ActionMeta[];
+}
+
+function mapActionStringMeta<T extends ActionStringMeta<unknown>>(
+  actionString: T,
+  change: ChangeDesc,
+) {
+  const newRange = mapMetaRange(actionString.range, change);
+  const newActions = mapArray(actionString.actions, change, mapActionMeta);
+  if (newRange === actionString.range && newActions === actionString.actions) {
+    return actionString;
+  }
+  return {
+    ...actionString,
+    range: newRange,
+    actions: newActions,
+  };
+}
+
+export interface PhraseMeta extends ActionStringMeta<number[]> {
+  hasConcatenator: boolean;
+  originalValue?: number[];
+}
+
+export interface CompoundMeta extends ActionStringMeta<number> {
+  parent?: ChordMeta;
+}
+
+export interface InputMeta extends ActionStringMeta<number[]> {}
+
+export interface ChordMeta {
+  range: MetaRange;
+  valid: boolean;
+  disabled?: boolean;
+  compounds?: CompoundMeta[];
+  input?: InputMeta;
+  phrase?: PhraseMeta;
+  children?: ChordMeta[];
+  overrides?: ChordMeta[];
+  aliases?: ChordMeta[];
+  overriddenBy?: ChordMeta;
+}
+
+export function mapChordMeta(chord: ChordMeta, change: ChangeDesc): ChordMeta {
+  const newRange = mapMetaRange(chord.range, change);
+  const newCompounds = chord.compounds
+    ? mapArray(chord.compounds, change, mapActionStringMeta)
+    : undefined;
+  const newInput = chord.input
+    ? mapActionStringMeta(chord.input, change)
+    : undefined;
+  const newPhrase = chord.phrase
+    ? mapActionStringMeta(chord.phrase, change)
+    : undefined;
+  if (
+    newRange === chord.range &&
+    newCompounds === chord.compounds &&
+    newInput === chord.input &&
+    newPhrase === chord.phrase
+  ) {
+    return chord;
+  }
+
+  const newChord: ChordMeta = {
+    ...chord,
+    range: newRange,
+  };
+  if (newCompounds) newChord.compounds = newCompounds;
+  if (newInput) newChord.input = newInput;
+  if (newPhrase) newChord.phrase = newPhrase;
+  return newChord;
+}
+
+export interface ParseResult {
+  chords: ChordMeta[];
+  removed: CharaChordFile["chords"];
+}
+
+export function mapParseResult(
+  result: ParseResult,
+  change: ChangeDesc,
+): ParseResult {
+  const newChords = mapArray(result.chords, change, mapChordMeta);
+  if (newChords === result.chords) {
+    return result;
+  }
+  return {
+    ...result,
+    chords: newChords,
+  };
+}
+
+export function iterActions(
+  chord: ChordMeta,
+  callback: (action: ActionMeta) => void,
+) {
+  if (chord.input) {
+    for (const action of chord.input.actions) {
+      callback(action);
+    }
+  }
+  if (chord.compounds) {
+    for (const compound of chord.compounds) {
+      for (const action of compound.actions) {
+        callback(action);
+      }
+    }
+  }
+  if (chord.phrase) {
+    for (const action of chord.phrase.actions) {
+      callback(action);
+    }
+  }
+}

src/lib/chord-editor/parsed-chords-plugin.ts

@@ -0,0 +1,30 @@
+import { StateField } from "@codemirror/state";
+import { parseCharaChords } from "./action-serializer";
+import { actionMetaPlugin } from "./action-meta-plugin";
+import { syntaxTree } from "@codemirror/language";
+import { deviceChordField } from "./chord-sync-plugin";
+import { mapParseResult, type ParseResult } from "./parse-meta";
+
+export const parsedChordsField = StateField.define<ParseResult>({
+  create() {
+    return {
+      chords: [],
+      removed: [],
+    };
+  },
+  update(value, transaction) {
+    const tree = syntaxTree(transaction.state);
+    const ids = transaction.state.field(actionMetaPlugin.field).ids;
+    const codes = transaction.state.field(actionMetaPlugin.field).codes;
+    const deviceChords = transaction.state.field(deviceChordField);
+    if (
+      tree !== syntaxTree(transaction.startState) ||
+      ids !== transaction.startState.field(actionMetaPlugin.field).ids ||
+      codes !== transaction.startState.field(actionMetaPlugin.field).codes ||
+      deviceChords !== transaction.startState.field(deviceChordField)
+    ) {
+      return parseCharaChords(transaction.state, ids, codes, deviceChords);
+    }
+    return mapParseResult(value, transaction.changes);
+  },
+});

src/lib/chord-editor/persistent-state-plugin.ts

@@ -0,0 +1,133 @@
+import {
+  EditorView,
+  highlightActiveLine,
+  keymap,
+  lineNumbers,
+  ViewPlugin,
+  ViewUpdate,
+} from "@codemirror/view";
+import {
+  history,
+  historyField,
+  historyKeymap,
+  standardKeymap,
+} from "@codemirror/commands";
+import { debounceTime, mergeMap, Subject } from "rxjs";
+import { EditorState, type EditorStateConfig } from "@codemirror/state";
+import { lintGutter } from "@codemirror/lint";
+import {
+  chordHighlightStyle,
+  chordLanguageSupport,
+} from "./chords-grammar-plugin";
+import { actionLinter } from "./action-linter";
+import { actionAutocompletePlugin } from "./autocomplete";
+import { delimPlugin } from "./chord-delim-plugin";
+import { actionPlugin } from "./action-plugin";
+import { syntaxHighlighting } from "@codemirror/language";
+import { deviceChordField } from "./chord-sync-plugin";
+import { actionMetaPlugin } from "./action-meta-plugin";
+import { parsedChordsField } from "./parsed-chords-plugin";
+import { changesPanel } from "./changes-panel";
+import {
+  parseCompressed,
+  stringifyCompressed,
+} from "$lib/serial/serialization";
+
+const serializedFields = {
+  history: historyField,
+  deviceChords: deviceChordField,
+};
+
+export interface EditorConfig {
+  rawCode?: boolean;
+  storeName: string;
+  autocomplete(query: string | undefined): void;
+}
+
+export async function loadPersistentState(
+  params: EditorConfig,
+): Promise<EditorState> {
+  const stored = localStorage.getItem(params.storeName);
+  const config = {
+    extensions: [
+      actionMetaPlugin.plugin,
+      deviceChordField,
+      parsedChordsField,
+      changesPanel(),
+      lintGutter(),
+      params.rawCode ? [lineNumbers()] : [delimPlugin, actionPlugin],
+      chordLanguageSupport(),
+      actionLinter({
+        delay: 100,
+        markerFilter(diagnostics) {
+          return diagnostics.filter((it) => it.from !== it.to);
+        },
+      }),
+      actionAutocompletePlugin(params.autocomplete),
+      persistentStatePlugin(params.storeName),
+      history(),
+      syntaxHighlighting(chordHighlightStyle),
+      highlightActiveLine(),
+      EditorView.theme({
+        ".cm-line": {
+          borderBottom: "1px solid transparent",
+          caretColor: "var(--md-sys-color-on-surface)",
+        },
+        ".cm-scroller": {
+          overflow: "auto",
+          width: "100%",
+          fontFamily: "inherit !important",
+          gap: "8px",
+        },
+        ".cm-content": {
+          flex: 1,
+        },
+        ".cm-cursor": {
+          borderColor: "var(--md-sys-color-on-surface)",
+        },
+      }),
+      keymap.of([...standardKeymap, ...historyKeymap]),
+    ],
+  } satisfies EditorStateConfig;
+
+  if (stored) {
+    try {
+      const parsed = await parseCompressed(new Blob([stored]));
+      return EditorState.fromJSON(parsed, config, serializedFields);
+    } catch (e) {
+      console.error("Failed to parse persistent state:", e);
+    }
+  }
+  return EditorState.create(config);
+}
+
+export function persistentStatePlugin(storeName: string) {
+  return ViewPlugin.fromClass(
+    class {
+      updateSubject = new Subject<void>();
+      subscription = this.updateSubject
+        .pipe(
+          debounceTime(500),
+          mergeMap(() =>
+            stringifyCompressed(this.view.state.toJSON(serializedFields)),
+          ),
+          mergeMap((blob) => blob.text()),
+        )
+        .subscribe((value) => {
+          localStorage.setItem(storeName, value);
+        });
+
+      constructor(readonly view: EditorView) {}
+
+      update(update: ViewUpdate) {
+        if (update.state !== update.startState) {
+          this.updateSubject.next();
+        }
+      }
+
+      destroy() {
+        this.subscription.unsubscribe();
+      }
+    },
+  );
+}

src/lib/chord-editor/store-state-field.ts

@@ -0,0 +1,35 @@
+import { StateEffect, StateField } from "@codemirror/state";
+import { EditorView, ViewPlugin } from "@codemirror/view";
+import { get, type Readable } from "svelte/store";
+
+export function reactiveStateField<T>(store: Readable<T>) {
+  const effect = StateEffect.define<T>();
+  const field = StateField.define<T>({
+    create() {
+      return get(store);
+    },
+    update(value, transaction) {
+      return (
+        transaction.effects.findLast((it) => it.is(effect))?.value ?? value
+      );
+    },
+  });
+  const plugin = ViewPlugin.fromClass(
+    class {
+      unsubscribe: () => void;
+
+      constructor(readonly view: EditorView) {
+        this.unsubscribe = store.subscribe((value) => {
+          setTimeout(() => {
+            view.dispatch({ effects: effect.of(value) });
+          });
+        });
+      }
+
+      destroy() {
+        this.unsubscribe();
+      }
+    },
+  );
+  return { field, plugin: [field, plugin] };
+}

src/lib/chord-editor/test.txt

@@ -1,16 +1,16 @@
-.=<LEFT_SHIFT> => =>
-;ims => <0x219><IMPULSE>
--;<KSC_2C><LEFT_SHIFT> => <0x23e>_<0x23e>
-.;g => <0x23e>...<0x23e><LH_THUMB_3_3D>
-'dg => <0x23e>'<0x23e>
-'gl => <0x23e>'ll<0x23e>
-'ar => <0x23e>'re<0x23e>
-'gs => <0x23e>'s<0x23e>
-'ev => <0x23e>'ve<0x23e>
-<SPACE>-; => <0x23e><0x223>-<0x223><KSC_00>
-<SPACE>;<LEFT_SHIFT> => <0x23e><0x223><0x23d><0x223><KSC_00>
-<SPACE>;g => <0x23e><0x223><SPACE><0x223><KSC_00>
-deg => <0x23e>ed<0x23e>
-;gr => <0x23e>er<0x23e>
-;es => <0x23e>es<0x23e>
-;est => <0x23e>est<0x23e>
+a|.=<LEFT_SHIFT>=>t=t
+;ims=<0x219><IMPULSE>
+-;<KSC_2C><LEFT_SHIFT>=><0x23e>_<0x23e>
+.;g=><0x23e>...<0x23e><LH_THUMB_3_3D>
+'dg=><0x23e>'<0x23e>
+'gl=><0x23e>'ll<0x23e>
+'ar=><0x23e>'re<0x23e>
+'gs=><0x23e>'s<0x23e>
+'ev=><0x23e>'ve<0x23e>
+<SPACE>-;=><0x23e><0x223>-<0x223><KSC_00>
+<SPACE>;<LEFT_SHIFT>=><0x23e><0x223><0x23d><0x223><KSC_00>
+<SPACE>;g=><0x23e><0x223><SPACE><0x223><KSC_00>
+deg=><0x23e>ed<0x23e>
+;gr=><0x23e>er<0x23e>
+;es=><0x23e>es<0x23e>
+;est=><0x23e>est<0x23e>

src/lib/components/Action.svelte

@@ -8,10 +8,12 @@
   let {
     action,
     display,
+    ignoreIcon = false,
     inText = false,
   }: {
     action: string | number | KeyInfo;
     display: "inline-keys" | "keys" | "verbose";
+    ignoreIcon?: boolean;
     inText?: boolean;
   } = $props();
 
@@ -30,6 +32,7 @@
           ? ({ code: 1024, id: action } satisfies KeyInfo)
           : action),
   );
+  let icon = $derived(ignoreIcon ? undefined : info.icon);
   let dynamicMapping = $derived(info.keyCode && $osLayout.get(info.keyCode));
   let hasPopover = $derived(
     !retrievedInfo || !info.id || info.title || info.description,
@@ -63,7 +66,7 @@
 
 {#snippet kbdText()}
   {dynamicMapping ??
-    info.icon ??
+    icon ??
     info.display ??
     info.id ??
     `0x${info.code.toString(16)}`}
@@ -71,7 +74,7 @@
 {#snippet kbdSnippet(withPopover = true)}
   <kbd
     class:in-text={inText}
-    class:icon={!!info.icon}
+    class:icon={!!icon}
     class:left={info.variant === "left"}
     class:right={info.variant === "right"}
     class:error={info.code > 1023}
@@ -91,7 +94,7 @@
       class:left={info.variant === "left"}
       class:right={info.variant === "right"}>{dynamicMapping}</span
     >
-  {:else if !info.icon && info.id?.length === 1}
+  {:else if !icon && info.id?.length === 1}
     <span
       {@attach hasPopover ? actionTooltip(popover) : null}
       class:in-text={inText}
@@ -106,7 +109,7 @@
       class:in-text={inText}
       class:left={info.variant === "left"}
       class:right={info.variant === "right"}
-      class:icon={!!info.icon}
+      class:icon={!!icon}
       class:warn={!retrievedInfo}
       class:error={info.code > 1023}
       {@attach hasPopover ? actionTooltip(popover) : null}
@@ -155,21 +158,50 @@
     text-decoration: line-through;
   }
 
-  $variant-offset: 12px;
-  $variant-padding: calc(2px + $variant-offset);
   $variant-color: color-mix(
     in srgb,
     var(--md-sys-color-on-surface) 50%,
     transparent
   );
 
+  .left,
+  .right {
+    background-color: transparent;
+
+    &::before {
+      position: absolute;
+      inset: 0;
+      outline: 2px dashed
+        color-mix(in srgb, var(--bg-color), var(--md-sys-color-outline) 40%);
+      outline-offset: -2px;
+      border-radius: var(--border-radius);
+      content: "";
+    }
+  }
+
+  $cutoff: 60%;
+
   .left {
-    padding-inline-end: $variant-padding;
-    text-shadow: $variant-offset 0 2px $variant-color;
+    background-image: linear-gradient(
+      to right,
+      var(--bg-color) $cutoff,
+      transparent $cutoff
+    );
+
+    &::before {
+      clip-path: inset(0 0 0 $cutoff);
+    }
   }
   .right {
-    padding-inline-start: $variant-padding;
-    text-shadow: -$variant-offset 0 2px $variant-color;
+    background-image: linear-gradient(
+      to left,
+      var(--bg-color) $cutoff,
+      transparent $cutoff
+    );
+
+    &::before {
+      clip-path: inset(0 $cutoff 0 0);
+    }
   }
 
   .inline-kbd {

src/lib/components/layout/ActionList.svelte

@@ -19,13 +19,17 @@
   let {
     currentAction = undefined,
     nextAction = undefined,
+    queryFilter = undefined,
+    ignoreIcon,
     autofocus = false,
     onselect,
     onclose,
   }: {
     currentAction?: number;
+    queryFilter?: string;
     nextAction?: number;
     autofocus?: boolean;
+    ignoreIcon?: boolean;
     onselect?: (id: number) => void;
     onclose?: () => void;
   } = $props();
@@ -43,6 +47,14 @@
     createIndex($KEYMAP_CODES);
   });
 
+  let didClear = true;
+  $effect(() => {
+    if (queryFilter !== undefined || !didClear) {
+      searchBox.value = queryFilter ?? "";
+      search();
+    }
+  });
+
   async function createIndex(codes: Map<number, KeyInfo>) {
     for (const [, action] of codes) {
       await index?.addAsync(
@@ -60,6 +72,7 @@
         (category) => [category, []] as [KeymapCategory, KeyInfo[]],
       ),
     );
+    didClear = searchBox.value === "";
     const result =
       searchBox.value === ""
         ? Array.from($KEYMAP_CODES.keys())
@@ -167,7 +180,7 @@
         <li>Action code is out of range</li>
       {/if}
     {/if}
-    {#each results as [category, actions] (category)}
+    {#each results as [category, actions] (actions)}
       {#if actions.length > 0}
         <div class="category">
           <h3>{category.name}</h3>
@@ -191,7 +204,7 @@
                     }
                   : undefined}
               >
-                <Action {action} display="verbose"></Action>
+                <Action {action} display="verbose" {ignoreIcon}></Action>
               </button>
             {/each}
           </ul>

src/lib/serial/chord.ts

@@ -1,4 +1,5 @@
 import { compressActions, decompressActions } from "../serialization/actions";
+import type { KeyInfo } from "./keymap-codes";
 
 export interface Chord {
   actions: number[];
@@ -56,6 +57,103 @@ export function deserializeActions(native: bigint): number[] {
   return actions;
 }
 
+const compoundHashItems = 3;
+const maxChordInputItems = 12;
+const actionBits = 10;
+const actionMask = (1 << actionBits) - 1;
+
+/**
+ * Applies the compound value to a **valid** chord input
+ */
+export function applyCompound(actions: number[], compound: number): number[] {
+  const result = [...actions];
+  for (let i = 0; i < compoundHashItems; i++) {
+    result[i] = (compound >>> (i * actionBits)) & actionMask;
+  }
+  result[compoundHashItems] = 0;
+  return result;
+}
+
+/**
+ * Extracts the compound value from a chord input, if present
+ */
+export function splitCompound(
+  actions: number[],
+): [inputs: number[], compound: number | undefined] {
+  if (actions[compoundHashItems] != 0) {
+    return [
+      actions.slice(
+        Math.max(
+          0,
+          actions.findIndex((it) => it !== 0),
+        ),
+      ),
+      undefined,
+    ];
+  }
+
+  let compound = 0;
+  for (let i = 0; i < compoundHashItems; i++) {
+    compound |= (actions[i] ?? 0) << (i * actionBits);
+  }
+
+  return [
+    actions.slice(
+      actions.findIndex((it, i) => i > compoundHashItems && it !== 0),
+    ),
+    compound === 0 ? undefined : compound,
+  ];
+}
+
+export function willBeValidChordInput(
+  inputCount: number,
+  hasCompound: boolean,
+): boolean {
+  return (
+    inputCount > 0 &&
+    inputCount <= maxChordInputItems - (hasCompound ? compoundHashItems + 1 : 0)
+  );
+}
+
+const ACTION_JOIN = 574;
+const ACTION_KSC_00 = 256;
+
+export function hasConcatenator(
+  actions: number[],
+  ids: Map<number, KeyInfo>,
+): boolean {
+  const lastAction = actions.at(-1);
+  for (const action of actions) {
+    if (!ids.get(action)?.printable) {
+      if (actions.length == 0) {
+        return false;
+      }
+      return lastAction == ACTION_JOIN;
+    }
+  }
+  return lastAction != ACTION_KSC_00;
+}
+
+/**
+ * Composes a chord input from a list of actions and an optional compound value
+ * to a valid chord input
+ */
+export function composeChordInput(
+  actions: number[],
+  compound?: number,
+): number[] {
+  const result = [
+    ...Array.from(
+      {
+        length: Math.max(0, maxChordInputItems - actions.length),
+      },
+      () => 0,
+    ),
+    ...actions.slice(0, maxChordInputItems).sort((a, b) => a - b),
+  ];
+  return compound !== undefined ? applyCompound(result, compound) : result;
+}
+
 /**
  * Hashes a chord input the same way as CCOS
  */
@@ -72,5 +170,6 @@ export function hashChord(actions: number[]) {
   if ((hash & 0xff) === 0xff) {
     hash ^= 0xff;
   }
-  return hash & 0x3fff_ffff;
+  hash &= 0x3fff_ffff;
+  return hash === 0 ? 1 : hash;
 }

src/lib/serial/connection.ts

@@ -55,7 +55,10 @@ export const syncStatus: Writable<
   "done" | "error" | "downloading" | "uploading"
 > = writable("done");
 
-export const deviceMeta = writable<VersionMeta | undefined>(undefined);
+export const deviceMeta = persistentWritable<VersionMeta | undefined>(
+  "current-meta",
+  undefined,
+);
 
 export interface ProgressInfo {
   max: number;

src/lib/style/_kbd.scss

@@ -1,22 +1,22 @@
 kbd {
-  display: inline-flex;
-  justify-content: center;
-  align-items: center;
-  margin-block: 6px;
-  border-radius: 4px;
-
-  //border: 1px solid currentcolor;
-  background: color-mix(
+  --bg-color: color-mix(
     in srgb,
     var(--md-sys-color-surface-variant) 50%,
     transparent
   );
-  padding: 4px;
+  --border-radius: 4px;
 
+  display: inline-flex;
+  position: relative;
+  justify-content: center;
+  align-items: center;
+  margin-block: 6px;
+  border-radius: var(--border-radius);
+  background: var(--bg-color);
+  padding: 4px;
   height: 20px;
   color: currentcolor;
   font-weight: normal;
-
   font-size: 14px;
 
   &.icon {

src/routes/(app)/config/cv2/+page.svelte

@@ -2,93 +2,224 @@
   import { chords } from "$lib/undo-redo";
   import { EditorView } from "codemirror";
   import { actionToValue } from "$lib/chord-editor/action-serializer";
-  import { actionPlugin } from "$lib/chord-editor/action-plugin";
-  import { delimPlugin } from "$lib/chord-editor/chord-delim-plugin";
-  import {
-    drawSelection,
-    dropCursor,
-    highlightActiveLine,
-    highlightSpecialChars,
-    keymap,
-  } from "@codemirror/view";
-  import { history, standardKeymap } from "@codemirror/commands";
   import "$lib/chord-editor/chords.grammar";
-  import {
-    chordHighlightStyle,
-    chordLanguageSupport,
-  } from "$lib/chord-editor/chords-grammar-plugin";
-  import { syntaxHighlighting } from "@codemirror/language";
-  import { autocompletion } from "@codemirror/autocomplete";
   import { persistentWritable } from "$lib/storage";
   import ActionList from "$lib/components/layout/ActionList.svelte";
+  import {
+    composeChordInput,
+    hashChord,
+    splitCompound,
+  } from "$lib/serial/chord";
+  import { loadPersistentState } from "$lib/chord-editor/persistent-state-plugin";
+  import { parsedChordsField } from "$lib/chord-editor/parsed-chords-plugin";
+  import type { CharaChordFile } from "$lib/share/chara-file";
+  import { chordSyncEffect } from "$lib/chord-editor/chord-sync-plugin";
+  import { KEYMAP_IDS, type KeyInfo } from "$lib/serial/keymap-codes";
+
+  let queryFilter: string | undefined = $state(undefined);
 
   const rawCode = persistentWritable("chord-editor-raw-code", false);
   const showEdits = persistentWritable("chord-editor-show-edits", true);
-  let originalDoc = $derived(
-    $chords
-      .map((chord) => {
-        return (
-          chord.actions
-            .filter((it) => it !== 0)
-            .map((it) => actionToValue(it))
-            .join("") +
-          "=>" +
-          chord.phrase.map((it) => actionToValue(it)).join("")
-        );
-      })
-      .join("\n"),
-  );
+  const denseSpacing = persistentWritable("chord-editor-spacing", false);
+
   let editor: HTMLDivElement | undefined = $state(undefined);
   let view: EditorView;
 
   $effect(() => {
     if (!editor) return;
-    view = new EditorView({
-      parent: editor,
-      doc: originalDoc,
-      extensions: [
-        ...($rawCode ? [] : [delimPlugin, actionPlugin]),
-        chordLanguageSupport(),
-        autocompletion({ icons: false, selectOnOpen: true }),
-        history(),
-        dropCursor(),
-        syntaxHighlighting(chordHighlightStyle),
-        highlightActiveLine(),
-        drawSelection(),
-        highlightSpecialChars(),
-        keymap.of(standardKeymap),
-      ],
-    });
-    return () => view.destroy();
+    const viewPromise = loadPersistentState({
+      rawCode: $rawCode,
+      storeName: "chord-editor-state-storage",
+      autocomplete(query) {
+        queryFilter = query;
+      },
+    }).then(
+      (state) =>
+        new EditorView({
+          parent: editor,
+          state,
+        }),
+    );
+    viewPromise.then((it) => (view = it));
+    return () => viewPromise.then((it) => it.destroy());
   });
+
+  function regenerate() {
+    const doc = $chords
+      .map((chord) => {
+        const [actions, compound] = splitCompound(chord.actions);
+        return (
+          (compound ? "|0x" + compound.toString(16) + "|" : "") +
+          actions.map((it) => actionToValue(it)).join("") +
+          "=>" +
+          chord.phrase.map((it) => actionToValue(it)).join("")
+        );
+      })
+      .join("\n");
+    view.dispatch({
+      changes: { from: 0, to: view.state.doc.length, insert: doc },
+      effects: chordSyncEffect.of(
+        $chords.map((chord) => [chord.actions, chord.phrase] as const),
+      ),
+    });
+  }
+
+  function largeFile() {
+    const chordCount = 100000;
+    const maxPhraseLength = 100;
+    const maxInputLength = 8;
+    const compoundChance = 0.05;
+
+    const actions = [...$KEYMAP_IDS.values()];
+    function randomAction(): KeyInfo {
+      return actions[Math.floor(actions.length * Math.random())]!;
+    }
+
+    const backup: [KeyInfo[][], KeyInfo[]][] = Array.from(
+      { length: chordCount },
+      () =>
+        [
+          [
+            Array.from(
+              { length: Math.floor(Math.random() * maxInputLength) + 1 },
+              randomAction,
+            ),
+          ],
+          Array.from(
+            {
+              length: Math.floor(Math.log(Math.random() * maxPhraseLength)) + 1,
+            },
+            randomAction,
+          ),
+        ] as const,
+    );
+    for (const chord of backup) {
+      if (Math.random() < compoundChance) {
+        chord[0] = [
+          ...backup[Math.floor(backup.length * Math.random())]![0],
+          ...chord[0],
+        ];
+      }
+    }
+
+    const doc = backup
+      .map(([inputs, phrase]) => {
+        return (
+          inputs
+            .map((input) => input.map((it) => actionToValue(it)).join(""))
+            .join("|") +
+          "=>" +
+          phrase.map((it) => actionToValue(it)).join("")
+        );
+      })
+      .join("\n");
+    view.dispatch({
+      changes: { from: 0, to: view.state.doc.length, insert: doc },
+      effects: chordSyncEffect.of(
+        $chords.map((chord) => [chord.actions, chord.phrase] as const),
+      ),
+    });
+  }
+
+  function loadBackup(event: Event) {
+    const input = event.target as HTMLInputElement;
+    if (!input.files || input.files.length === 0) return;
+    const file = input.files[0];
+    const reader = new FileReader();
+    reader.onload = (e) => {
+      try {
+        const content = e.target?.result as string;
+        const backup: CharaChordFile = JSON.parse(content);
+        const doc = backup.chords
+          .map((chord) => {
+            const [actions, compound] = splitCompound(chord[0]);
+            return (
+              (compound
+                ? "<0x" + compound.toString(16).padStart(8, "0") + ">"
+                : "") +
+              actions.map((it) => actionToValue(it)).join("") +
+              "=>" +
+              chord[1].map((it) => actionToValue(it)).join("")
+            );
+          })
+          .join("\n");
+        view.dispatch({
+          changes: { from: 0, to: view.state.doc.length, insert: doc },
+        });
+      } catch (err) {
+        alert("Failed to load backup: " + err);
+      }
+    };
+    reader.readAsText(file);
+  }
+
+  function downloadBackup() {
+    const backup: CharaChordFile = {
+      charaVersion: 1,
+      type: "chords",
+      chords: view.state.field(parsedChordsField).result,
+    };
+    console.log(JSON.stringify(backup));
+    const blob = new Blob([JSON.stringify(backup)], {
+      type: "application/json",
+    });
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement("a");
+    a.href = url;
+    a.download = "chord-backup.json";
+    a.click();
+    URL.revokeObjectURL(url);
+  }
 </script>
 
-<label><input type="checkbox" bind:checked={$rawCode} />View as code</label>
-<label><input type="checkbox" bind:checked={$showEdits} />Show edits</label>
+<div class="vertical">
+  <div style:display="flex">
+    <label><input type="checkbox" bind:checked={$rawCode} />Edit as code</label>
+    <!--<label><input type="checkbox" bind:checked={$showEdits} />Show edits</label>-->
+    <label
+      ><input type="checkbox" bind:checked={$denseSpacing} />Dense Spacing</label
+    >
+    <button onclick={regenerate}>Regenerate from current chords</button>
+    <!--<button onclick={largeFile}>Create Huge File</button>-->
+    <button onclick={downloadBackup}>Download Backup</button>
+    <input
+      type="file"
+      accept="application/json"
+      onchange={loadBackup}
+      style="margin-left: 1rem"
+    />
+  </div>
 
-<div class="split">
-  <ActionList />
-  <div
-    class="editor"
-    class:hide-edits={!$showEdits}
-    class:raw={$rawCode}
-    bind:this={editor}
-  ></div>
+  <div class="split">
+    <div
+      class="editor"
+      class:hide-edits={!$showEdits}
+      class:raw={$rawCode}
+      class:dense-spacing={$denseSpacing}
+      bind:this={editor}
+    ></div>
+    <ActionList {queryFilter} ignoreIcon={$rawCode} />
+  </div>
 </div>
 
 <style lang="scss">
-  .split {
+  .vertical {
     display: flex;
-    gap: 1rem;
+    flex-direction: column;
+    align-items: center;
     height: 100%;
-
-    > :global(:first-child) {
-      max-width: 600px;
-    }
   }
 
-  .editor:not(.raw) :global(.cm-line) {
-    width: fit-content;
+  .split {
+    display: flex;
+    flex-grow: 1;
+    flex-shrink: 1;
+    width: calc(min(100%, 1400px));
+    min-height: 0;
+
+    > :global(*) {
+      flex: 1;
+    }
   }
 
   .editor :global(.cm-deletedChunk) {
@@ -96,7 +227,6 @@
   }
 
   .editor {
-    min-width: 600px;
     height: 100%;
     font-size: 16px;
 
@@ -122,6 +252,45 @@
       }
     }
 
+    &:not(.raw) :global(.cm-line) {
+      columns: 2;
+      text-align: center;
+    }
+
+    &.dense-spacing :global(.cm-line) {
+      padding-block: 0;
+    }
+
+    :global(.cm-line) {
+      padding-block: 8px;
+      width: 100%;
+      text-wrap: wrap;
+      white-space: pre-wrap;
+      word-break: break-word;
+
+      > :global(*) {
+        break-before: avoid;
+        break-after: avoid;
+        break-inside: avoid;
+      }
+    }
+
+    :global(.chord-ignored) {
+      opacity: 0.5;
+      background-image: none;
+      text-decoration: line-through;
+    }
+
+    :global(.chord-child) {
+      background-image: none;
+      text-decoration: underline;
+    }
+
+    :global(.chord-invalid) {
+      color: var(--md-sys-color-error);
+      text-decoration-color: var(--md-sys-color-error);
+    }
+
     :global(.change-button) {
       height: 24px;
       font-size: 16px;
@@ -144,29 +313,20 @@
     }
 
     :global(.cm-gutters) {
-      border: none;
+      border-color: transparent;
       background-color: transparent;
     }
 
+    &.raw :global(.cm-gutters) {
+      border-color: var(--md-sys-color-surface-variant);
+      background-color: var(--md-sys-color-surface);
+    }
+
     :global(.cm-editor) {
       outline: none;
       height: 100%;
     }
 
-    :global(.cm-line) {
-      border-bottom: 1px solid transparent;
-      line-height: 3em;
-    }
-
-    :global(.cm-scroller) {
-      overflow: auto;
-      font-family: inherit !important;
-    }
-
-    :global(.cm-cursor) {
-      border-color: var(--md-sys-color-on-surface);
-    }
-
     :global(.cm-changedLine) {
       background-color: color-mix(
         in srgb,
@@ -182,17 +342,13 @@
 
     :global(.cm-activeLine) {
       border-bottom: 1px solid var(--md-sys-color-surface-variant);
-      /*background-color: color-mix(
-        in srgb,
-        var(--md-sys-color-surface-variant) 40%,
-        transparent
-      ) !important;*/
 
       &:not(.cm-changedLine) {
         background-color: transparent !important;
       }
     }
 
+    :global(::selection),
     :global(.cm-selectionBackground) {
       background-color: var(--md-sys-color-surface-variant) !important;
     }