Basic encoding/decoding

lib/rumoji.rb

+# -*- encoding: utf-8 -*-
 require "rumoji/version"
 
 module Rumoji
+  extend self
+
+  def encode(str)
+    remapped_codepoints = str.codepoints.flat_map do |codepoint|
+      emoji = EMOJI_NAME_TO_CODEPOINT.key(codepoint.to_s(16).upcase)
+      emoji ? ":#{emoji}:".codepoints.entries : codepoint
+    end
+    remapped_codepoints.pack("U*")
+  end
+
+  def decode(str)
+    duplicate = str.dup
+    EMOJI_NAME_TO_CODEPOINT.each_pair do |key, value|
+      duplicate.gsub! ":#{key}:", [value.to_i(16)].pack("U")
+    end
+    duplicate
+  end
+
+  EMOJI_NAME_TO_CODEPOINT = {
+    # PEOPLE
+    smile:                        "1F604",
+    laughing:                     "1F606",
+    blush:                        "1F60A",
+    smiley:                       "1F603",
+    relaxed:                      "263A",
+    smirk:                        "1F60F",
+    heart_eyes:                   "1F60D",
+    kissing_heart:                "1F618",
+    kissing_closed_eyes:          "1F61A",
+    flushed:                      "1F633",
+    relieved:                     "1F625",
+    satisfied:                    "1F60C",
+    grin:                         "1F601",
+    wink:                         "1F609",
+    wink2:                        "1F61C",
+    stuck_out_tongue_winking_eye: "1F61C",
+    stuck_out_tongue_closed_eyes: "1F61D",
+    grinning:                     "1F600",
+    kissing:                      "1F617",
+    kissing_smiling_eyes:         "1F619",
+    stuck_out_tongue:             "1F61B",
+    sleeping:                     "1F634",
+    worried:                      "1F61F",
+    frowning:                     "1F626",
+    anguished:                    "1F627",
+    open_mouth:                   "1F62E",
+    grimacing:                    "1F62C",
+    confused:                     "1F615",
+    hushed:                       "1F62F",
+    expressionless:               "1F611",
+    unamused:                     "1F612",
+    sweat_smile:                  "1F605",
+    sweat:                        "1F613",
+    weary:                        "1F629",
+    pensive:                      "1F614",
+    dissapointed:                 "1F61E",
+    confounded:                   "1F616",
+    fearful:                      "1F628",
+    cold_sweat:                   "1F630",
+    persevere:                    "1F623",
+    cry:                          "1F622",
+    sob:                          "1F62D",
+    joy:                          "1F602",
+    astonished:                   "1F632",
+    scream:                       "1F631",
+    tired_face:                   "1F62B",
+    angry:                        "1F620",
+    rage:                         "1F621",
+    triumph:                      "1F624",
+    sleepy:                       "1F62A",
+    yum:                          "1F60B",
+    mask:                         "1F637",
+    sunglasses:                   "1F60E",
+    dizzy_face:                   "1F635",
+    imp:                          "1F47F",
+    smiling_imp:                  "1F608",
+    neutral_face:                 "1F610",
+    no_mouth:                     "1F636",
+    innocent:                     "1F607",
+
+    alien:                        "1F47D",
+
+    yellow_heart:                 "1F49B",
+    blue_heart:                   "1F499",
+    purple_heart:                 "1F49C",
+    heart:                        "2764",
+    green_heart:                  "1F49A",
+    broken_heart:                 "1F494",
+    heartbeat:                    "1F493",
+    heartpulse:                   "1F497",
+    two_hearts:                   "1F495",
+    revolving_hearts:             "1F49E",
+    cupid:                        "1F498",
+    sparkling_heart:              "1F496",
+
+    sparkles:                     "2728",
+    star:                         "2B50", # In "Nature" range
+    star2:                        "1F31F",
+    dizzy:                        "1F4AB",
+    boom:                         "1F4A5",
+    collision:                    "1F4A5",
+    anger:                        "1F4A2",
+
+    # In "Symbols" range
+    exclamation:                  "2757",
+    question:                     "2753",
+    grey_exclamation:             "2755",
+    grey_question:                "2754",
+
+    zzz:                          "1F4A4",
+    dash:                         "1F4A8",
+    sweat_drops:                  "1F4A6",
+
+    # In "Objects" range
+    notes:                        "1F3B6",
+    musical_note:                 "1F3B5",
+
+    fire:                         "1F525",
+
+    # So much poop
+    hankey:                       "1F4A9",
+    poop:                         "1F4A9",
+    shit:                         "1F4A9",
+
+    thumbsup:                     "1F44D",
+    thumbsdown:                   "1F44E",
+    ok_hand:                      "1F44C",
+    punch:                        "1F44A",
+    facepunch:                    "1F44A",
+    fist:                         "270A",
+    v:                            "270C",
+    wave:                         "1F44B",
+    hand:                         "270B",
+
+    open_hands:                   "1F450",
+    point_up:                     "261D",
+    point_down:                   "1F447",
+    point_left:                   "1F448",
+    point_right:                  "1F449",
+    raised_hands:                 "1F64C",
+    pray:                         "1F64F",
+    point_up_2:                   "1F446",
+    clap:                         "1F44F",
+    muscle:                       "1F4AA",
+
+    walking:                      "1F6B6",
+    runner:                       "1F3C3",
+    running:                      "1F3C3",
+    couple:                       "1F46B",
+    family:                       "1F46A",
+    two_men_holding_hands:        "1F46C",
+    two_women_holding_hands:      "1F46C",
+    dancer:                       "1F483",
+    dancers:                      "1F46F",
+    ok_woman:                     "1F646",
+    no_good:                      "1F645",
+    information_desk_person:      "1F481",
+    raised_hand:                  "1F64B",
+    bride_with_veil:              "1F470",
+    person_with_pouting_face:     "1F64E",
+    person_frowning:              "1F64D",
+    bow:                          "1F647",
+    couplekiss:                   "1F48F",
+    couple_with_heart:            "1F491",
+    massage:                      "1F486",
+    haircut:                      "1F487",
+    nail_care:                    "1F485",
+    boy:                          "1F466",
+    girl:                         "1F467",
+    woman:                        "1F469",
+    man:                          "1F468",
+    baby:                         "1F476",
+    older_woman:                  "1F475",
+    older_man:                    "1F474",
+    person_with_blond_hair:       "1F471",
+    man_with_gua_pi_mao:          "1F472",
+    man_with_turban:              "1F473",
+    construction_worker:          "1F477",
+    cop:                          "1F46E",
+    angel:                        "1F47C",
+    princess:                     "1F478",
+
+    smiley_cat:                   "1F63A",
+    smile_cat:                    "1F638",
+    heart_eyes_cat:               "1F63B",
+    kissing_cat:                  "1F63D",
+    smirk_cat:                    "1F63C",
+    scream_cat:                   "1F640",
+    crying_cat_face:              "1F63F",
+    joy_cat:                      "1F639",
+    pouting_cat:                  "1F63E",
+
+    japanese_ogre:                "1F479",
+    japanese_goblin:              "1F47A",
+
+    see_no_evil:                  "1F648",
+    hear_no_evil:                 "1F649",
+    speak_no_evil:                "1F649",
+
+    guardsman:                    "1F482",
+    skull:                        "1F480",
+
+    feet:                         "1F463",
+    lips:                         "1F444",
+    kiss:                         "1F48B",
+    droplet:                      "1F4A7",
+    ear:                          "1F442",
+    eyes:                         "1F440",
+    nose:                         "1F443",
+    tongue:                       "1F445",
+    love_letter:                  "1F48C",
+    bust_in_silhouette:           "1F464",
+    busts_in_silhouette:          "1F465",
+    speech_balloon:               "1F4AC",
+    thought_balloon:              "1F4AD"
+  }
+
 end