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| author | Philipp Tanlak <philipp.tanlak@gmail.com> | 2025-11-24 20:54:57 +0100 |
|---|---|---|
| committer | Philipp Tanlak <philipp.tanlak@gmail.com> | 2025-11-24 20:57:48 +0100 |
| commit | b1e2c8fd5cb5dfa46bc440a12eafaf56cd844b1c (patch) | |
| tree | 49d360fd6cbc6a2754efe93524ac47ff0fbe0f7d /node_modules/tailwindcss/src/util/isSyntacticallyValidPropertyValue.js | |
Docs
Diffstat (limited to 'node_modules/tailwindcss/src/util/isSyntacticallyValidPropertyValue.js')
| -rw-r--r-- | node_modules/tailwindcss/src/util/isSyntacticallyValidPropertyValue.js | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/node_modules/tailwindcss/src/util/isSyntacticallyValidPropertyValue.js b/node_modules/tailwindcss/src/util/isSyntacticallyValidPropertyValue.js new file mode 100644 index 0000000..ff00074 --- /dev/null +++ b/node_modules/tailwindcss/src/util/isSyntacticallyValidPropertyValue.js @@ -0,0 +1,61 @@ +let matchingBrackets = new Map([ + ['{', '}'], + ['[', ']'], + ['(', ')'], +]) +let inverseMatchingBrackets = new Map( + Array.from(matchingBrackets.entries()).map(([k, v]) => [v, k]) +) + +let quotes = new Set(['"', "'", '`']) + +// Arbitrary values must contain balanced brackets (), [] and {}. Escaped +// values don't count, and brackets inside quotes also don't count. +// +// E.g.: w-[this-is]w-[weird-and-invalid] +// E.g.: w-[this-is\\]w-\\[weird-but-valid] +// E.g.: content-['this-is-also-valid]-weirdly-enough'] +export default function isSyntacticallyValidPropertyValue(value) { + let stack = [] + let inQuotes = false + + for (let i = 0; i < value.length; i++) { + let char = value[i] + + if (char === ':' && !inQuotes && stack.length === 0) { + return false + } + + // Non-escaped quotes allow us to "allow" anything in between + if (quotes.has(char) && value[i - 1] !== '\\') { + inQuotes = !inQuotes + } + + if (inQuotes) continue + if (value[i - 1] === '\\') continue // Escaped + + if (matchingBrackets.has(char)) { + stack.push(char) + } else if (inverseMatchingBrackets.has(char)) { + let inverse = inverseMatchingBrackets.get(char) + + // Nothing to pop from, therefore it is unbalanced + if (stack.length <= 0) { + return false + } + + // Popped value must match the inverse value, otherwise it is unbalanced + if (stack.pop() !== inverse) { + return false + } + } + } + + // If there is still something on the stack, it is also unbalanced + if (stack.length > 0) { + return false + } + + // All good, totally balanced! + return true +} |