Unexpected error: Failed to execute 'setStart' on 'Range': The offset 4294967292 is larger than the node's length (491).

[nestoris]

Description

An unexpected error occurred in the renderer process.

Stack Trace

Error: Failed to execute 'setStart' on 'Range': The offset 4294967292 is larger than the node's length (491).
    at Object.select (file:///usr/lib/marktext/app.asar/dist/electron/webpack:/src/muya/lib/selection/index.js:346:11)
    at Object.setCursorRange (file:///usr/lib/marktext/app.asar/dist/electron/webpack:/src/muya/lib/selection/index.js:491:10)
    at aa.setCursor (file:///usr/lib/marktext/app.asar/dist/electron/webpack:/src/muya/lib/contentState/index.js:205:15)
    at aa.partialRender (file:///usr/lib/marktext/app.asar/dist/electron/webpack:/src/muya/lib/contentState/index.js:257:12)
    at aa.inputHandler (file:///usr/lib/marktext/app.asar/dist/electron/webpack:/src/muya/lib/contentState/inputCtrl.js:324:51)
    at HTMLDivElement.<anonymous> (file:///usr/lib/marktext/app.asar/dist/electron/webpack:/src/muya/lib/eventHandler/keyboard.js:203:22)

Version

Mark Text: v0.16.3 (c1d603f)
Operating system: Linux x64 5.10.59-1-MANJARO (linux)

[Jocs]

How to reproduce this issue?

[fxha]

Description:

Merging two lines of white-spaces (here spaces) result in an editor crash because the spaces are converted into a code bock. The cursor is invalid after this operation and overflows when setting the cursor in DOM.

Steps:

Type in editor mode and set cursor the the given position:

1. Type a and hit enter
2. Type two or three spaces and hit enter
3. Type two or three spaces and hit enter
4. Type b and position cursor
5. Press Shift, once ArrorLeft while holding shift and afterwards Backspace

a

2x <space>

<cursor>2x <space>

b

Cursor before crash:

{
  "start":{
    "key":"ag-105",
    "offset": -2
  },
  "anchor":{
    "key":"ag-105",
    "offset": -2
  },
  "end":{
    "key":"ag-105",
    "offset": -2
  },
  "focus":{
    "key":"ag-105",
    "offset": -2
  }
}

Expected behavior:

• Either the code block is generated and the correct cursor should be set or
• all spaces are replaced by one space and the cursor may be adjusted.

Temporary Workaround:

Validate cursor before setting and use a fallback.

Stack Trace:

index.js?4d53:346 Uncaught DOMException: Failed to execute 'setStart' on 'Range': The offset 4294967293 is invalid.
    at Selection.select (webpack-internal:///./src/muya/lib/selection/index.js:360:11)
    at Selection.setCursorRange (webpack-internal:///./src/muya/lib/selection/index.js:527:10)
    at ContentState.setCursor (webpack-internal:///./src/muya/lib/contentState/index.js:241:56)
    at ContentState.partialRender (webpack-internal:///./src/muya/lib/contentState/index.js:326:12)
    at ContentState.inputHandler (webpack-internal:///./src/muya/lib/contentState/inputCtrl.js:366:51)
    at HTMLDivElement.inputHandler (webpack-internal:///./src/muya/lib/eventHandler/keyboard.js:248:22)