Function isWhitespace

packages/core/src/widgets/codeEditorSyntax.ts:801–803

(ch: string)

}

function isWhitespace(ch: string): boolean {
  return ch === " " || ch === "\t";
}

function isWordStart(ch: string): boolean {
  return (ch >= "a" && ch <= "z") || (ch >= "A" && ch <= "Z") || ch === "_" || ch === "$";