Major mini editor refactoring (#225)

Replaces most editing components with CM components, enabling vim mode and completions everywhere

Fixes #205 
Fixes #221 
Fixes #222 
Fixes #223

web/syscalls/editor.ts

@@ -3,29 +3,6 @@ import { EditorView, Transaction } from "../deps.ts";
 import { SysCallMapping } from "../../plugos/system.ts";
 import { FilterOption } from "../../common/types.ts";
 
-type SyntaxNode = {
-  name: string;
-  text: string;
-  from: number;
-  to: number;
-};
-
-function ensureAnchor(expr: any, start: boolean) {
-  let _a;
-  const { source } = expr;
-  const addStart = start && source[0] != "^",
-    addEnd = source[source.length - 1] != "$";
-  if (!addStart && !addEnd) return expr;
-  return new RegExp(
-    `${addStart ? "^" : ""}(?:${source})${addEnd ? "$" : ""}`,
-    (_a = expr.flags) !== null && _a !== void 0
-      ? _a
-      : expr.ignoreCase
-      ? "i"
-      : "",
-  );
-}
-
 export function editorSyscalls(editor: Editor): SysCallMapping {
   const syscalls: SysCallMapping = {
     "editor.getCurrentPage": (): string => {
@@ -155,26 +132,6 @@ export function editorSyscalls(editor: Editor): SysCallMapping {
         },
       });
     },
-
-    "editor.matchBefore": (
-      _ctx,
-      regexp: string,
-    ): { from: number; to: number; text: string } | null => {
-      const editorState = editor.editorView!.state;
-      const selection = editorState.selection.main;
-      const from = selection.from;
-      if (selection.empty) {
-        const line = editorState.doc.lineAt(from);
-        const start = Math.max(line.from, from - 250);
-        const str = line.text.slice(start - line.from, from - line.from);
-        const found = str.search(ensureAnchor(new RegExp(regexp), false));
-        // console.log("Line", line, start, str, new RegExp(regexp), found);
-        return found < 0
-          ? null
-          : { from: start + found, to: from, text: str.slice(found) };
-      }
-      return null;
-    },
     "editor.dispatch": (_ctx, change: Transaction) => {
       editor.editorView!.dispatch(change);
     },
@@ -191,18 +148,16 @@ export function editorSyscalls(editor: Editor): SysCallMapping {
     ): boolean => {
       return confirm(message);
     },
-    "editor.enableReadOnlyMode": (_ctx, enabled: boolean) => {
+    "editor.getUiOption": (_ctx, key: string): any => {
+      return (editor.viewState.uiOptions as any)[key];
+    },
+    "editor.setUiOption": (_ctx, key: string, value: any) => {
       editor.viewDispatch({
-        type: "set-editor-ro",
-        enabled,
+        type: "set-ui-option",
+        key,
+        value,
       });
     },
-    "editor.getVimEnabled": (): boolean => {
-      return editor.enableVimMode;
-    },
-    "editor.setVimEnabled": (_ctx, enabled: boolean) => {
-      editor.setVimMode(enabled);
-    },
   };
 
   return syscalls;