Function parseModifiers

src/compute-engine/latex-syntax/serializer.ts:528–555

Extract the body of the symbol, and the modifiers * (accents and styles)

(
  s: string
)

  logicStyle(
    expr: MathJsonExpression,
    level: number
  ): 'word' | 'boolean' | 'uppercase-word' | 'punctuation' {
    return this.options.logicStyle(expr, level);
  }

  powerStyle(
    expr: MathJsonExpression,
    level: number
  ): 'root' | 'solidus' | 'quotient' {
    return this.options.powerStyle(expr, level);
  }

  numericSetStyle(
    expr: MathJsonExpression,
    level: number
  ): 'compact' | 'regular' | 'interval' | 'set-builder' {
    return this.options.numericSetStyle(expr, level);
  }

  indexStyle(expr: MathJsonExpression, level: number): 'subscript' | 'bracket' {
    return this.options.indexStyle(expr, level);
  }
}

export function appendLatex(src: string, s: string): string {
  if (!s) return src;

  // If the source end in a LaTeX command,
  // and the appended string begins with a letter
  if (/\\[a-zA-Z]+\*?$/.test(src) && /[a-zA-Z]/.test(s[0])) {
    // Add a space between them