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fix(website): strip tags to a fixed point in the copy-text helper #244

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Merged
zantvoort merged 1 commit into from
Jul 12, 2026
Merged

fix(website): strip tags to a fixed point in the copy-text helper #244

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13 changes: 11 additions & 2 deletions website/src/components/tutorial/tutorialTheme.js
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Original file line number Diff line number Diff line change
Expand Up @@ -70,8 +70,17 @@ export const DATABASE_VARIANTS = [
export function editor({file, tag, code, sql, copy, variants}) {
// The highlighted HTML is entirely esc()'d text inside spans, so dropping
// the tags and unescaping recovers the source text exactly.
const toPlain = (html) =>
html.replace(/<[^>]+>/g, '').replace(/&lt;/g, '<').replace(/&gt;/g, '>').replace(/&amp;/g, '&');
const toPlain = (html) => {
// Strip tags to a fixed point before unescaping: a single pass is not idempotent, since removing an
// inner tag can splice two fragments into a fresh tag, so repeat until the markup stops changing.
let stripped = html;
let previous;
do {
previous = stripped;
stripped = stripped.replace(/<[^>]+>/g, '');
} while (stripped !== previous);
return stripped.replace(/&lt;/g, '<').replace(/&gt;/g, '>').replace(/&amp;/g, '&');
};
// Newlines only occur in the escaped text tokens, never inside tag markup,
// so the line count can be taken from the HTML string directly.
const pane = (html) => {
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