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author | kibigo! <marrus-sh@users.noreply.github.com> | 2017-11-17 19:11:18 -0800 |
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committer | kibigo! <marrus-sh@users.noreply.github.com> | 2017-11-17 19:29:16 -0800 |
commit | 45c44989c8fb6e24badd18bb83ac5f68de0aceaf (patch) | |
tree | 794d088986d8518506e3e1eec0c8ffb7da5604b8 /app/javascript/themes/glitch/util/emoji/unicode_to_filename.js | |
parent | 5a9982b425d3db65d813eb0314a27cea16f0f52d (diff) |
Forking glitch theme
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; +}; |