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author | beatrix <beatrix.bitrot@gmail.com> | 2017-11-18 20:32:17 -0500 |
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committer | GitHub <noreply@github.com> | 2017-11-18 20:32:17 -0500 |
commit | bcda3f85ce1473e9285299979a471525b2cd7034 (patch) | |
tree | 80c346945531fe17bdf94b70ecd206a07edd5258 /app/javascript/themes/glitch/util/emoji/unicode_to_filename.js | |
parent | dec960c828390466c8fa802ac30e68041a64bff6 (diff) | |
parent | 92cc79be7206534e8c9a9957cc89b5d0eb0bcfac (diff) |
Merge pull request #226 from glitch-soc/glitch-theme
Glitch/Vanilla themes
Diffstat (limited to 'app/javascript/themes/glitch/util/emoji/unicode_to_filename.js')
-rw-r--r-- | app/javascript/themes/glitch/util/emoji/unicode_to_filename.js | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/app/javascript/themes/glitch/util/emoji/unicode_to_filename.js b/app/javascript/themes/glitch/util/emoji/unicode_to_filename.js new file mode 100644 index 000000000..c75c4cd7d --- /dev/null +++ b/app/javascript/themes/glitch/util/emoji/unicode_to_filename.js @@ -0,0 +1,26 @@ +// taken from: +// https://github.com/twitter/twemoji/blob/47732c7/twemoji-generator.js#L848-L866 +exports.unicodeToFilename = (str) => { + let result = ''; + let charCode = 0; + let p = 0; + let i = 0; + while (i < str.length) { + charCode = str.charCodeAt(i++); + if (p) { + if (result.length > 0) { + result += '-'; + } + result += (0x10000 + ((p - 0xD800) << 10) + (charCode - 0xDC00)).toString(16); + p = 0; + } else if (0xD800 <= charCode && charCode <= 0xDBFF) { + p = charCode; + } else { + if (result.length > 0) { + result += '-'; + } + result += charCode.toString(16); + } + } + return result; +}; |