diff options
| author | Shipwreckt <me@shipwreckt.co.uk> | 2025-10-31 20:02:14 +0000 |
|---|---|---|
| committer | Shipwreckt <me@shipwreckt.co.uk> | 2025-10-31 20:02:14 +0000 |
| commit | 7a52ddeba2a68388b544f529d2d92104420f77b0 (patch) | |
| tree | 15ddd47457a2cb4a96060747437d36474e4f6b4e /node_modules/mdurl/lib/encode.mjs | |
| parent | 53d6ae2b5568437afa5e4995580a3fb679b7b91b (diff) | |
Changed from static to 11ty!
Diffstat (limited to 'node_modules/mdurl/lib/encode.mjs')
| -rw-r--r-- | node_modules/mdurl/lib/encode.mjs | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/node_modules/mdurl/lib/encode.mjs b/node_modules/mdurl/lib/encode.mjs new file mode 100644 index 0000000..7a0c356 --- /dev/null +++ b/node_modules/mdurl/lib/encode.mjs @@ -0,0 +1,89 @@ +const encodeCache = {} + +// Create a lookup array where anything but characters in `chars` string +// and alphanumeric chars is percent-encoded. +// +function getEncodeCache (exclude) { + let cache = encodeCache[exclude] + if (cache) { return cache } + + cache = encodeCache[exclude] = [] + + for (let i = 0; i < 128; i++) { + const ch = String.fromCharCode(i) + + if (/^[0-9a-z]$/i.test(ch)) { + // always allow unencoded alphanumeric characters + cache.push(ch) + } else { + cache.push('%' + ('0' + i.toString(16).toUpperCase()).slice(-2)) + } + } + + for (let i = 0; i < exclude.length; i++) { + cache[exclude.charCodeAt(i)] = exclude[i] + } + + return cache +} + +// Encode unsafe characters with percent-encoding, skipping already +// encoded sequences. +// +// - string - string to encode +// - exclude - list of characters to ignore (in addition to a-zA-Z0-9) +// - keepEscaped - don't encode '%' in a correct escape sequence (default: true) +// +function encode (string, exclude, keepEscaped) { + if (typeof exclude !== 'string') { + // encode(string, keepEscaped) + keepEscaped = exclude + exclude = encode.defaultChars + } + + if (typeof keepEscaped === 'undefined') { + keepEscaped = true + } + + const cache = getEncodeCache(exclude) + let result = '' + + for (let i = 0, l = string.length; i < l; i++) { + const code = string.charCodeAt(i) + + if (keepEscaped && code === 0x25 /* % */ && i + 2 < l) { + if (/^[0-9a-f]{2}$/i.test(string.slice(i + 1, i + 3))) { + result += string.slice(i, i + 3) + i += 2 + continue + } + } + + if (code < 128) { + result += cache[code] + continue + } + + if (code >= 0xD800 && code <= 0xDFFF) { + if (code >= 0xD800 && code <= 0xDBFF && i + 1 < l) { + const nextCode = string.charCodeAt(i + 1) + if (nextCode >= 0xDC00 && nextCode <= 0xDFFF) { + result += encodeURIComponent(string[i] + string[i + 1]) + i++ + continue + } + } + result += '%EF%BF%BD' + continue + } + + result += encodeURIComponent(string[i]) + } + + return result +} + +encode.defaultChars = ";/?:@&=+$,-_.!~*'()#" +encode.componentChars = "-_.!~*'()" + +export default encode |
