gemoji 2.0.1

Fix tests
Remove incorrect unicode aliases
2014-08-02 09:24:58 -07:00 · 2014-08-02 09:24:09 -07:00 · 2014-08-02 09:24:09 -07:00 · 2014-08-02 09:24:09 -07:00
7 changed files with 322 additions and 50 deletions
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
  remote: .
  specs:
-    gemoji (1.5.0)
+    gemoji (2.0.1)

 GEM
  remote: https://rubygems.org/
--- a/db/aliases.html
+++ b/db/aliases.html
@@ -0,0 +1,87 @@
+<!DOCTYPE html>
+<title>Emoji alias detection</title>
+<style>
+  textarea {
+    font-family: monospace;
+  }
+</style>
+
+<p>Save the following as <tt>emoji.json</tt>:</p>
+
+<textarea id="output" rows="50" cols="80"></textarea>
+
+<script>
+  const VARIATION_SELECTOR_15 = String.fromCharCode(0xfe0e);
+  const VARIATION_SELECTOR_16 = String.fromCharCode(0xfe0f);
+
+  function detectAliases(db) {
+    for (var i = 0; i < db.length; ++i) {
+      var emoji = db[i];
+      var raw = emoji.emoji;
+      if (!raw) {
+        continue;
+      }
+
+      var candidates = [];
+
+      if (raw.length === 1) {
+        candidates.push(raw + VARIATION_SELECTOR_15);
+        candidates.push(raw + VARIATION_SELECTOR_16);
+      } else if (raw[raw.length - 1] === VARIATION_SELECTOR_16) {
+        var base = raw.substr(0, raw.length - 1);
+        candidates.push(base);
+        candidates.push(base + VARIATION_SELECTOR_15);
+      }
+
+      var aliases = candidates.filter(isColorEmoji);
+      if (aliases.length) {
+        emoji.unicodes = aliases;
+      } else {
+        delete emoji.unicodes;
+      }
+    }
+
+    dump(db);
+  }
+
+  function isColorEmoji(candidate) {
+    // Draw the emoji twice using a different color each time. If the emoji
+    // draws as the same color regardless of what color we set, it's a color
+    // emoji.
+    return color(candidate, "#f00") === color(candidate, "#0f0");
+  }
+
+  var canvas = document.createElement("canvas");
+  function color(emoji, rgb) {
+    var context = canvas.getContext("2d");
+    context.clearRect(0, 0, 32, 32);
+    context.fillStyle = rgb;
+    context.textBaseline = "top";
+    context.font = "32px Arial";
+    context.fillText(emoji, 0, 0);
+    var data = context.getImageData(0, 0, 32, 32).data;
+    for (var i = 0; i < data.length; i += 4) {
+      if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0) {
+        continue;
+      }
+      return data[i].toString(16)
+        + data[i + 1].toString(16)
+        + data[i + 2].toString(16);
+    }
+    return "no colored pixel found";
+  }
+
+  function dump(db) {
+    var json = JSON.stringify(db, null, "  ")
+      .replace(/^( +)(.+)\[\](,?)$/mg, "$1$2[\n$1]$3")
+      .replace(/,\n( *)  /g, "\n$1, ");
+    document.getElementById("output").value = json + "\n";
+  }
+
+  var xhr = new XMLHttpRequest;
+  xhr.onload = function() {
+    detectAliases(JSON.parse(this.responseText));
+  };
+  xhr.open("GET", "emoji.json", false);
+  xhr.send(null);
+</script>
--- a/db/dump.rb
+++ b/db/dump.rb
@@ -52,7 +52,8 @@ end
 trap(:PIPE) { abort }

 items = []
-variation = Emoji::VARIATION_SELECTOR_16
+variation = "\u{fe0f}".freeze
+

 for emoji in Emoji.all
  unicodes = emoji.unicode_aliases.dup
@@ -62,7 +63,6 @@ for emoji in Emoji.all
  unless emoji.custom?
    variation_codepoint = variation.codepoints[0]
    chars = emoji.raw.codepoints.map { |code| UnicodeCharacter.fetch(code) unless code == variation_codepoint }.compact
-    unicodes.select { |u| u.index(variation) }.each { |u| unicodes.delete(u.sub(variation, '')) }
    item[:emoji] = unicodes.shift
    item[:unicodes] = unicodes if unicodes.any?
    item[:description] = chars.map(&:description).join(' + ')
--- a/db/emoji.json
+++ b/db/emoji.json
@@ -931,6 +931,10 @@
  }
 , {
    "emoji": "✨"
+  , "unicodes": [
+      "✨︎"
+    , "✨️"
+    ]
  , "description": "sparkles"
  , "aliases": [
      "sparkles"
@@ -1122,6 +1126,10 @@
  }
 , {
    "emoji": "✊"
+  , "unicodes": [
+      "✊︎"
+    , "✊️"
+    ]
  , "description": "raised fist"
  , "aliases": [
      "fist"
@@ -1153,6 +1161,10 @@
  }
 , {
    "emoji": "✋"
+  , "unicodes": [
+      "✋︎"
+    , "✋️"
+    ]
  , "description": "raised hand"
  , "aliases": [
      "hand"
@@ -2905,6 +2917,9 @@
  }
 , {
    "emoji": "⭐️"
+  , "unicodes": [
+      "⭐"
+    ]
  , "description": "white medium star"
  , "aliases": [
      "star"
@@ -2924,6 +2939,10 @@
  }
 , {
    "emoji": "⛅️"
+  , "unicodes": [
+      "⛅"
+    , "⛅︎"
+    ]
  , "description": "sun behind cloud"
  , "aliases": [
      "partly_sunny"
@@ -2944,6 +2963,9 @@
  }
 , {
    "emoji": "⚡️"
+  , "unicodes": [
+      "⚡"
+    ]
  , "description": "high voltage sign"
  , "aliases": [
      "zap"
@@ -2955,6 +2977,9 @@
  }
 , {
    "emoji": "☔️"
+  , "unicodes": [
+      "☔"
+    ]
  , "description": "umbrella with rain drops"
  , "aliases": [
      "umbrella"
@@ -2978,6 +3003,10 @@
  }
 , {
    "emoji": "⛄️"
+  , "unicodes": [
+      "⛄"
+    , "⛄︎"
+    ]
  , "description": "snowman without snow"
  , "aliases": [
      "snowman"
@@ -3482,6 +3511,10 @@
  }
 , {
    "emoji": "⏳"
+  , "unicodes": [
+      "⏳︎"
+    , "⏳️"
+    ]
  , "description": "hourglass with flowing sand"
  , "aliases": [
      "hourglass_flowing_sand"
@@ -3492,6 +3525,9 @@
  }
 , {
    "emoji": "⌛️"
+  , "unicodes": [
+      "⌛"
+    ]
  , "description": "hourglass"
  , "aliases": [
      "hourglass"
@@ -3502,6 +3538,10 @@
  }
 , {
    "emoji": "⏰"
+  , "unicodes": [
+      "⏰︎"
+    , "⏰️"
+    ]
  , "description": "alarm clock"
  , "aliases": [
      "alarm_clock"
@@ -3512,6 +3552,9 @@
  }
 , {
    "emoji": "⌚️"
+  , "unicodes": [
+      "⌚"
+    ]
  , "description": "watch"
  , "aliases": [
      "watch"
@@ -4488,6 +4531,10 @@
  }
 , {
    "emoji": "🀄️"
+  , "unicodes": [
+      "🀄"
+    , "🀄︎"
+    ]
  , "description": "mahjong tile red dragon"
  , "aliases": [
      "mahjong"
@@ -4538,6 +4585,9 @@
  }
 , {
    "emoji": "⚽️"
+  , "unicodes": [
+      "⚽"
+    ]
  , "description": "soccer ball"
  , "aliases": [
      "soccer"
@@ -4597,6 +4647,10 @@
  }
 , {
    "emoji": "⛳️"
+  , "unicodes": [
+      "⛳"
+    , "⛳︎"
+    ]
  , "description": "flag in hole"
  , "aliases": [
      "golf"
@@ -4701,6 +4755,9 @@
  }
 , {
    "emoji": "☕️"
+  , "unicodes": [
+      "☕"
+    ]
  , "description": "hot beverage"
  , "aliases": [
      "coffee"
@@ -5359,6 +5416,10 @@
  }
 , {
    "emoji": "⛪️"
+  , "unicodes": [
+      "⛪"
+    , "⛪︎"
+    ]
  , "description": "church"
  , "aliases": [
      "church"
@@ -5422,6 +5483,10 @@
  }
 , {
    "emoji": "⛺️"
+  , "unicodes": [
+      "⛺"
+    , "⛺︎"
+    ]
  , "description": "tent"
  , "aliases": [
      "tent"
@@ -5531,6 +5596,10 @@
  }
 , {
    "emoji": "⛲️"
+  , "unicodes": [
+      "⛲"
+    , "⛲︎"
+    ]
  , "description": "fountain"
  , "aliases": [
      "fountain"
@@ -5558,6 +5627,10 @@
  }
 , {
    "emoji": "⛵️"
+  , "unicodes": [
+      "⛵"
+    , "⛵︎"
+    ]
  , "description": "sailboat"
  , "aliases": [
      "boat"
@@ -5587,6 +5660,9 @@
  }
 , {
    "emoji": "⚓️"
+  , "unicodes": [
+      "⚓"
+    ]
  , "description": "anchor"
  , "aliases": [
      "anchor"
@@ -6015,6 +6091,10 @@
  }
 , {
    "emoji": "⛽️"
+  , "unicodes": [
+      "⛽"
+    , "⛽︎"
+    ]
  , "description": "fuel pump"
  , "aliases": [
      "fuelpump"
@@ -6528,6 +6608,10 @@
  }
 , {
    "emoji": "⏪"
+  , "unicodes": [
+      "⏪︎"
+    , "⏪️"
+    ]
  , "description": "black left-pointing double triangle"
  , "aliases": [
      "rewind"
@@ -6537,6 +6621,10 @@
  }
 , {
    "emoji": "⏩"
+  , "unicodes": [
+      "⏩︎"
+    , "⏩️"
+    ]
  , "description": "black right-pointing double triangle"
  , "aliases": [
      "fast_forward"
@@ -6546,6 +6634,10 @@
  }
 , {
    "emoji": "⏫"
+  , "unicodes": [
+      "⏫︎"
+    , "⏫️"
+    ]
  , "description": "black up-pointing double triangle"
  , "aliases": [
      "arrow_double_up"
@@ -6555,6 +6647,10 @@
  }
 , {
    "emoji": "⏬"
+  , "unicodes": [
+      "⏬︎"
+    , "⏬️"
+    ]
  , "description": "black down-pointing double triangle"
  , "aliases": [
      "arrow_double_down"
@@ -6698,7 +6794,8 @@
 , {
    "emoji": "🈯️"
  , "unicodes": [
-      "指"
+      "🈯"
+    , "🈯︎"
    ]
  , "description": "squared cjk unified ideograph-6307"
  , "aliases": [
@@ -6709,9 +6806,6 @@
  }
 , {
    "emoji": "🈳"
-  , "unicodes": [
-      "空"
-    ]
  , "description": "squared cjk unified ideograph-7a7a"
  , "aliases": [
      "u7a7a"
@@ -6721,9 +6815,6 @@
  }
 , {
    "emoji": "🈵"
-  , "unicodes": [
-      "満"
-    ]
  , "description": "squared cjk unified ideograph-6e80"
  , "aliases": [
      "u6e80"
@@ -6733,9 +6824,6 @@
  }
 , {
    "emoji": "🈴"
-  , "unicodes": [
-      "合"
-    ]
  , "description": "squared cjk unified ideograph-5408"
  , "aliases": [
      "u5408"
@@ -6745,9 +6833,6 @@
  }
 , {
    "emoji": "🈲"
-  , "unicodes": [
-      "禁"
-    ]
  , "description": "squared cjk unified ideograph-7981"
  , "aliases": [
      "u7981"
@@ -6766,9 +6851,6 @@
  }
 , {
    "emoji": "🈹"
-  , "unicodes": [
-      "割"
-    ]
  , "description": "squared cjk unified ideograph-5272"
  , "aliases": [
      "u5272"
@@ -6778,9 +6860,6 @@
  }
 , {
    "emoji": "🈺"
-  , "unicodes": [
-      "営"
-    ]
  , "description": "squared cjk unified ideograph-55b6"
  , "aliases": [
      "u55b6"
@@ -6790,9 +6869,6 @@
  }
 , {
    "emoji": "🈶"
-  , "unicodes": [
-      "有"
-    ]
  , "description": "squared cjk unified ideograph-6709"
  , "aliases": [
      "u6709"
@@ -6803,7 +6879,8 @@
 , {
    "emoji": "🈚️"
  , "unicodes": [
-      "無"
+      "🈚"
+    , "🈚︎"
    ]
  , "description": "squared cjk unified ideograph-7121"
  , "aliases": [
@@ -6889,6 +6966,9 @@
  }
 , {
    "emoji": "♿️"
+  , "unicodes": [
+      "♿"
+    ]
  , "description": "wheelchair symbol"
  , "aliases": [
      "wheelchair"
@@ -6908,9 +6988,6 @@
  }
 , {
    "emoji": "🈷"
-  , "unicodes": [
-      "月"
-    ]
  , "description": "squared cjk unified ideograph-6708"
  , "aliases": [
      "u6708"
@@ -6920,9 +6997,6 @@
  }
 , {
    "emoji": "🈸"
-  , "unicodes": [
-      "申"
-    ]
  , "description": "squared cjk unified ideograph-7533"
  , "aliases": [
      "u7533"
@@ -7117,6 +7191,10 @@
  }
 , {
    "emoji": "⛔️"
+  , "unicodes": [
+      "⛔"
+    , "⛔︎"
+    ]
  , "description": "no entry"
  , "aliases": [
      "no_entry"
@@ -7145,6 +7223,10 @@
  }
 , {
    "emoji": "❎"
+  , "unicodes": [
+      "❎︎"
+    , "❎️"
+    ]
  , "description": "negative squared cross mark"
  , "aliases": [
      "negative_squared_cross_mark"
@@ -7154,6 +7236,10 @@
  }
 , {
    "emoji": "✅"
+  , "unicodes": [
+      "✅︎"
+    , "✅️"
+    ]
  , "description": "white heavy check mark"
  , "aliases": [
      "white_check_mark"
@@ -7255,6 +7341,9 @@
  }
 , {
    "emoji": "➿"
+  , "unicodes": [
+      "➿️"
+    ]
  , "description": "double curly loop"
  , "aliases": [
      "loop"
@@ -7275,6 +7364,9 @@
  }
 , {
    "emoji": "♈️"
+  , "unicodes": [
+      "♈"
+    ]
  , "description": "aries"
  , "aliases": [
      "aries"
@@ -7284,6 +7376,9 @@
  }
 , {
    "emoji": "♉️"
+  , "unicodes": [
+      "♉"
+    ]
  , "description": "taurus"
  , "aliases": [
      "taurus"
@@ -7293,6 +7388,9 @@
  }
 , {
    "emoji": "♊️"
+  , "unicodes": [
+      "♊"
+    ]
  , "description": "gemini"
  , "aliases": [
      "gemini"
@@ -7302,6 +7400,9 @@
  }
 , {
    "emoji": "♋️"
+  , "unicodes": [
+      "♋"
+    ]
  , "description": "cancer"
  , "aliases": [
      "cancer"
@@ -7311,6 +7412,9 @@
  }
 , {
    "emoji": "♌️"
+  , "unicodes": [
+      "♌"
+    ]
  , "description": "leo"
  , "aliases": [
      "leo"
@@ -7320,6 +7424,9 @@
  }
 , {
    "emoji": "♍️"
+  , "unicodes": [
+      "♍"
+    ]
  , "description": "virgo"
  , "aliases": [
      "virgo"
@@ -7329,6 +7436,9 @@
  }
 , {
    "emoji": "♎️"
+  , "unicodes": [
+      "♎"
+    ]
  , "description": "libra"
  , "aliases": [
      "libra"
@@ -7338,6 +7448,9 @@
  }
 , {
    "emoji": "♏️"
+  , "unicodes": [
+      "♏"
+    ]
  , "description": "scorpius"
  , "aliases": [
      "scorpius"
@@ -7347,6 +7460,9 @@
  }
 , {
    "emoji": "♐️"
+  , "unicodes": [
+      "♐"
+    ]
  , "description": "sagittarius"
  , "aliases": [
      "sagittarius"
@@ -7356,6 +7472,9 @@
  }
 , {
    "emoji": "♑️"
+  , "unicodes": [
+      "♑"
+    ]
  , "description": "capricorn"
  , "aliases": [
      "capricorn"
@@ -7365,6 +7484,9 @@
  }
 , {
    "emoji": "♒️"
+  , "unicodes": [
+      "♒"
+    ]
  , "description": "aquarius"
  , "aliases": [
      "aquarius"
@@ -7374,6 +7496,9 @@
  }
 , {
    "emoji": "♓️"
+  , "unicodes": [
+      "♓"
+    ]
  , "description": "pisces"
  , "aliases": [
      "pisces"
@@ -7383,6 +7508,10 @@
  }
 , {
    "emoji": "⛎"
+  , "unicodes": [
+      "⛎︎"
+    , "⛎️"
+    ]
  , "description": "ophiuchus"
  , "aliases": [
      "ophiuchus"
@@ -7437,6 +7566,9 @@
  }
 , {
    "emoji": "©"
+  , "unicodes": [
+      "©️"
+    ]
  , "description": "copyright sign"
  , "aliases": [
      "copyright"
@@ -7446,6 +7578,9 @@
  }
 , {
    "emoji": "®"
+  , "unicodes": [
+      "®️"
+    ]
  , "description": "registered sign"
  , "aliases": [
      "registered"
@@ -7455,6 +7590,9 @@
  }
 , {
    "emoji": "™"
+  , "unicodes": [
+      "™️"
+    ]
  , "description": "trade mark sign"
  , "aliases": [
      "tm"
@@ -7465,6 +7603,10 @@
  }
 , {
    "emoji": "❌"
+  , "unicodes": [
+      "❌︎"
+    , "❌️"
+    ]
  , "description": "cross mark"
  , "aliases": [
      "x"
@@ -7492,6 +7634,10 @@
  }
 , {
    "emoji": "❗️"
+  , "unicodes": [
+      "❗"
+    , "❗︎"
+    ]
  , "description": "heavy exclamation mark symbol"
  , "aliases": [
      "exclamation"
@@ -7503,6 +7649,10 @@
  }
 , {
    "emoji": "❓"
+  , "unicodes": [
+      "❓︎"
+    , "❓️"
+    ]
  , "description": "black question mark ornament"
  , "aliases": [
      "question"
@@ -7513,6 +7663,10 @@
  }
 , {
    "emoji": "❕"
+  , "unicodes": [
+      "❕︎"
+    , "❕️"
+    ]
  , "description": "white exclamation mark ornament"
  , "aliases": [
      "grey_exclamation"
@@ -7522,6 +7676,10 @@
  }
 , {
    "emoji": "❔"
+  , "unicodes": [
+      "❔︎"
+    , "❔️"
+    ]
  , "description": "white question mark ornament"
  , "aliases": [
      "grey_question"
@@ -7531,6 +7689,10 @@
  }
 , {
    "emoji": "⭕️"
+  , "unicodes": [
+      "⭕"
+    , "⭕︎"
+    ]
  , "description": "heavy large circle"
  , "aliases": [
      "o"
@@ -7819,6 +7981,10 @@
  }
 , {
    "emoji": "➕"
+  , "unicodes": [
+      "➕︎"
+    , "➕️"
+    ]
  , "description": "heavy plus sign"
  , "aliases": [
      "heavy_plus_sign"
@@ -7828,6 +7994,10 @@
  }
 , {
    "emoji": "➖"
+  , "unicodes": [
+      "➖︎"
+    , "➖️"
+    ]
  , "description": "heavy minus sign"
  , "aliases": [
      "heavy_minus_sign"
@@ -7837,6 +8007,10 @@
  }
 , {
    "emoji": "➗"
+  , "unicodes": [
+      "➗︎"
+    , "➗️"
+    ]
  , "description": "heavy division sign"
  , "aliases": [
      "heavy_division_sign"
@@ -7938,6 +8112,10 @@
  }
 , {
    "emoji": "➰"
+  , "unicodes": [
+      "➰︎"
+    , "➰️"
+    ]
  , "description": "curly loop"
  , "aliases": [
      "curly_loop"
@@ -7947,6 +8125,9 @@
  }
 , {
    "emoji": "〰"
+  , "unicodes": [
+      "〰️"
+    ]
  , "description": "wavy dash"
  , "aliases": [
      "wavy_dash"
@@ -7992,6 +8173,9 @@
  }
 , {
    "emoji": "◾️"
+  , "unicodes": [
+      "◾"
+    ]
  , "description": "black medium small square"
  , "aliases": [
      "black_medium_small_square"
@@ -8001,6 +8185,9 @@
  }
 , {
    "emoji": "◽️"
+  , "unicodes": [
+      "◽"
+    ]
  , "description": "white medium small square"
  , "aliases": [
      "white_medium_small_square"
@@ -8055,6 +8242,9 @@
  }
 , {
    "emoji": "⚫️"
+  , "unicodes": [
+      "⚫"
+    ]
  , "description": "medium black circle"
  , "aliases": [
      "black_circle"
@@ -8064,6 +8254,9 @@
  }
 , {
    "emoji": "⚪️"
+  , "unicodes": [
+      "⚪"
+    ]
  , "description": "medium white circle"
  , "aliases": [
      "white_circle"
@@ -8100,6 +8293,9 @@
  }
 , {
    "emoji": "⬜️"
+  , "unicodes": [
+      "⬜"
+    ]
  , "description": "white large square"
  , "aliases": [
      "white_large_square"
@@ -8109,6 +8305,9 @@
  }
 , {
    "emoji": "⬛️"
+  , "unicodes": [
+      "⬛"
+    ]
  , "description": "black large square"
  , "aliases": [
      "black_large_square"
--- a/gemoji.gemspec
+++ b/gemoji.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
  s.name    = "gemoji"
-  s.version = "2.0.0"
+  s.version = "2.0.1"
  s.summary = "Emoji conversion and image assets"
  s.description = "Image assets and character information for emoji."

--- a/lib/emoji.rb
+++ b/lib/emoji.rb
@@ -64,22 +64,13 @@ module Emoji
  end

  private
-    VARIATION_SELECTOR_16 = "\u{fe0f}".freeze
-
    def parse_data_file
      raw = File.open(data_file, 'r:UTF-8') { |data| JSON.parse(data.read) }
      raw.each do |raw_emoji|
        self.create(nil) do |emoji|
          raw_emoji.fetch('aliases').each { |name| emoji.add_alias(name) }
          unicodes = Array(raw_emoji['emoji']) + raw_emoji.fetch('unicodes', [])
-          unicodes.each { |uni|
-            emoji.add_unicode_alias(uni)
-            # Automatically add a representation of this emoji without the variation
-            # selector to unicode aliases:
-            if uni.index(VARIATION_SELECTOR_16)
-              emoji.add_unicode_alias(uni.sub(VARIATION_SELECTOR_16, ''))
-            end
-          }
+          unicodes.each { |uni| emoji.add_unicode_alias(uni) }
          raw_emoji.fetch('tags').each { |tag| emoji.add_tag(tag) }
        end
      end
--- a/test/emoji_test.rb
+++ b/test/emoji_test.rb
@@ -47,13 +47,8 @@ class EmojiTest < TestCase
  end

  test "unicode_aliases" do
-    emoji = Emoji.find_by_unicode("\u{1f237}")
-    assert_equal ["\u{1f237}", "\u{6708}"], emoji.unicode_aliases
-  end
-
-  test "unicode_aliases includes form without variation selector" do
-    emoji = Emoji.find_by_alias("heart")
-    assert_equal ["\u{2764}\u{fe0f}", "\u{2764}"], emoji.unicode_aliases
+    emoji = Emoji.find_by_unicode("\u{2728}")
+    assert_equal ["\u{2728}", "\u{2728}\u{fe0e}", "\u{2728}\u{fe0f}"], emoji.unicode_aliases
  end

  test "emojis have tags" do
Author	SHA1	Message	Date
Mislav Marohnić	6a39782a46	gemoji 2.0.1	2014-08-02 09:24:58 -07:00
Adam Roben	c6a9db29bd	Fix tests	2014-08-02 09:24:09 -07:00
Adam Roben	3ec375d299	Remove incorrect unicode aliases db/aliases.html now clears out any incorrect aliases it finds.	2014-08-02 09:24:09 -07:00
Adam Roben	34cd8356bb	Use the same unicode aliases as Safari 7.0.5 on OS X 10.9.4 Category-Emoji.json contains many code point sequences ending in U+FE0F VARIATION SELECTOR-16. OS X renders some of these code point sequences as color emoji even if you strip off VARIATION SELECTOR-16. (And in fact it even renders some of them as color emoji if you replace VARIATION SELECTOR-16 with VARIATION SELECTOR-15, even though that is explicitly requesting a "text" variant of the character). We used to assume that VARIATION SELECTOR-16 was optional for all emoji. But this doesn't match OS X's behavior. This could cause problems, e.g., if you were to use the unicode_aliases property to detect Unicode emoji and replace them with images for browsers that don't support emoji natively. The Ruby code no longer does anything special with VARIATION SELECTOR-16 other than to remove it from the description of each emoji. The new db/aliases.html file can be used to determine which the correct Unicode aliases for each emoji are. That page takes each emoji, generates a set of variants using VARIATION SELECTOR-16 and VARIATION SELECTOR-15, and renders each variant into a <canvas> element twice: once with a red font color, and once with a green font color. If the variant renders the same way, the OS is rendering the variant as a color emoji, and we add it to the "unicodes" array for that emoji. So the new process for generating db/emoji.json is: 1. rake db:dump > tmp 2. mv tmp db/emoji.json 3. open -a Safari db/aliases.html 4. Copy the resulting JSON from Safari 5. pbpaste > db/emoji.json This ensures that unicode_aliases only contains those code point sequences which actually render as color emoji on OS X.	2014-08-02 09:24:09 -07:00