34 lines
1.6 KiB
JavaScript
34 lines
1.6 KiB
JavaScript
// CSS that lives in the i18n catalog. MT rewrote a selector to [データスラッシュメニュー] and a keyframe
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// name to ブラウザフラッシュ, breaking the view in that locale only. Removing these from en.json is
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// the real fix; until then the policy pins them to English.
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const STYLE_BLOCK =
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/@(keyframes|media|supports|font-face)\b|[.#][a-zA-Z][\w-]*[^{}]*\{[^{}]*[a-z-]+\s*:|\[[a-z-]+=["'][^"']*["']\]|\{[^{}]*[a-z-]+\s*:\s*[^{}]*[;}]/
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// A selector with no declaration block has no braces for STYLE_BLOCK to key off.
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const SELECTOR_TOKEN = /^(?:[>+~]|[a-zA-Z.#[][\w.#:()[\]"'=^$|*-]*)$/
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const LONE_SELECTOR = /^#[a-zA-Z][\w-]*$|^\.[a-zA-Z][\w-]*-[\w-]+$/
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// One dotted, colon or bracketed token — button.primary, a:hover, wsl.exe, localhost:3000. It is
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// code whether it names a selector, a file or a host, and a translation breaks all three.
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const LONE_QUALIFIED = /^[a-zA-Z][\w-]*(?:[.#:][\w-]+|\[[^\]]+\])$/
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function isStandaloneSelector(enValue) {
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if (/[{}]/.test(enValue)) {
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return false
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}
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const tokens = enValue.trim().split(/\s+/)
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if (!tokens.every((token) => SELECTOR_TOKEN.test(token))) {
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return false
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}
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// A selector join, not a sentence period: two sentences would otherwise clear the threshold.
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const marked = tokens.filter((token) => /^[#.][a-zA-Z]|[\w-][.#:][a-zA-Z]|\[/.test(token))
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if (marked.length >= 2) {
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return true
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}
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return tokens.length === 1 && (LONE_SELECTOR.test(tokens[0]) || LONE_QUALIFIED.test(tokens[0]))
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}
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export function isStyleValue(enValue) {
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return STYLE_BLOCK.test(enValue) || isStandaloneSelector(enValue)
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}
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