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Diffstat (limited to 'node_modules/locutus/php/strings/ord.js')
-rw-r--r-- | node_modules/locutus/php/strings/ord.js | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/node_modules/locutus/php/strings/ord.js b/node_modules/locutus/php/strings/ord.js new file mode 100644 index 0000000..a23cc36 --- /dev/null +++ b/node_modules/locutus/php/strings/ord.js @@ -0,0 +1,42 @@ +'use strict'; + +module.exports = function ord(string) { + // discuss at: http://locutus.io/php/ord/ + // original by: Kevin van Zonneveld (http://kvz.io) + // bugfixed by: Onno Marsman (https://twitter.com/onnomarsman) + // improved by: Brett Zamir (http://brett-zamir.me) + // input by: incidence + // example 1: ord('K') + // returns 1: 75 + // example 2: ord('\uD800\uDC00'); // surrogate pair to create a single Unicode character + // returns 2: 65536 + + var str = string + ''; + var code = str.charCodeAt(0); + + if (code >= 0xD800 && code <= 0xDBFF) { + // High surrogate (could change last hex to 0xDB7F to treat + // high private surrogates as single characters) + var hi = code; + if (str.length === 1) { + // This is just a high surrogate with no following low surrogate, + // so we return its value; + return code; + // we could also throw an error as it is not a complete character, + // but someone may want to know + } + var low = str.charCodeAt(1); + return (hi - 0xD800) * 0x400 + (low - 0xDC00) + 0x10000; + } + if (code >= 0xDC00 && code <= 0xDFFF) { + // Low surrogate + // This is just a low surrogate with no preceding high surrogate, + // so we return its value; + return code; + // we could also throw an error as it is not a complete character, + // but someone may want to know + } + + return code; +}; +//# sourceMappingURL=ord.js.map
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