fix: add onStatistics result length/lineBreak/readOnly/tabSize.

Author: jaywcjlove

core/README.md

@@ -367,6 +367,14 @@ import { ViewUpdate } from '@codemirror/view';
 export interface Statistics {
   /** Get the number of lines in the editor. */
   lineCount: number;
+  /** total length of the document */
+  length: number;
+  /** Get the proper [line-break](https://codemirror.net/docs/ref/#state.EditorState^lineSeparator) string for this state. */
+  lineBreak: string;
+  /** Returns true when the editor is [configured](https://codemirror.net/6/docs/ref/#state.EditorState^readOnly) to be read-only. */
+  readOnly: boolean;
+  /** The size (in columns) of a tab in the document, determined by the [`tabSize`](https://codemirror.net/6/docs/ref/#state.EditorState^tabSize) facet. */
+  tabSize: number;
   /** Cursor Position */
   selection: EditorSelection;
   /** Retrieves a list of all current selections. */

core/src/utils.ts

@@ -4,6 +4,14 @@ import { ViewUpdate } from '@codemirror/view';
 export interface Statistics {
   /** Get the number of lines in the editor. */
   lineCount: number;
+  /** total length of the document */
+  length: number;
+  /** Get the proper [line-break](https://codemirror.net/docs/ref/#state.EditorState^lineSeparator) string for this state. */
+  lineBreak: string;
+  /** Returns true when the editor is [configured](https://codemirror.net/6/docs/ref/#state.EditorState^readOnly) to be read-only. */
+  readOnly: boolean;
+  /** The size (in columns) of a tab in the document, determined by the [`tabSize`](https://codemirror.net/6/docs/ref/#state.EditorState^tabSize) facet. */
+  tabSize: number;
   /** Cursor Position */
   selection: EditorSelection;
   /** Retrieves a list of all current selections. */
@@ -21,6 +29,10 @@ export interface Statistics {
 
 export const getStatistics = (view: ViewUpdate): Statistics => ({
   lineCount: view.state.doc.lines,
+  length: view.state.doc.length,
+  lineBreak: view.state.lineBreak,
+  readOnly: view.state.readOnly,
+  tabSize: view.state.tabSize,
   selection: view.state.selection,
   ranges: view.state.selection.ranges,
   selectionCode: view.state.sliceDoc(view.state.selection.main.from, view.state.selection.main.to),