// The marker for copy nobody has written yet.
//
// Per CLAUDE.md's Copywriting section, an agent does not write brand voice,
// so every human-facing sentence on this site starts life as obviously
// invented text — real but obscure words rather than Lorem Ipsum, so it
// never reads as a plausible draft. PH() wraps such a string in ⟦…⟧
// (guillemet-and-bracket, chosen because nothing else on the site uses it)
// so unwritten copy is visible on the built page too, not only in the
// source.
//
// To find what is still unwritten:
//
//   grep -rn 'PH(' site/src/data/   # in the source
//   grep -rn '⟦' site/dist          # in a built page, to see it in context
//
// Writing a real line means replacing the filler and dropping the PH()
// wrapper with it. A data file whose last PH() is gone should drop the
// import too; when no file imports this one, delete it.
const OPEN = "⟦";
const CLOSE = "⟧";

export const PH = (text: string) => `${OPEN}${text}${CLOSE}`;

/**
 * True for a string PH() produced. The marker is on the built page, so this
 * is how something rendering copy can tell an unwritten line from a written
 * one — see `describe` in ./meta.ts, which keeps filler out of the tags a
 * link unfurler reads.
 */
export const isFiller = (text: string) => text.includes(OPEN);