# Changelog

## 0.2.0 (5 September 2014)

 * Rename a number of methods to be clearer and more consistent with that they
   actually do:
     - `EmojiChar.char()` → `EmojiChar.render()`
     - `EmojiData.find_by_unified()` → `EmojiData.from_unified()`
     - `EmojiData.find_by_str()` → `EmojiData.scan()`

   Don't worry, the old names are still aliased in so you don't have to change
   anything in your existing code.  This change is make things clearer for
   people new to the library.

 * Add new `.from_short_name()` library method for fast keyword lookups.
 * DEVELOPERS: Internal code cleanup and better comments.
 * DEVELOPERS: Add benchmark suite for comparing method implementation time
   across versions of this library.

## 0.1.0 (3 May 2014)

 * Add support for Unicode variant encodings, used by MacOSX 10.9 / iOS 7.
   - For more info: http://www.unicode.org/L2/L2011/11438-emoji-var.pdf
   - By default, `EmojiChar.to_s()` and `.char()` will now use the variant
     encoding.
 * With adding support for variants, the speed of `find_by_str` regressed by
   approximately 20% (because there are more codepoints to match against). To
   counter this, we switched to a Regex based scan than improves performance of
   the method by over 250x(!).  A complete sorted search against 1000 strings
   now takes ~2ms where before it would take around a half second.
 * Import latest version of iamcal/emoji-data.
 * 100% test coverage. :sunglasses:

## 0.0.3 (1 April 2014)

 * On initialization, create hashmaps to cache lookups for `.find_by_unified()`.

   In a quick benchmark in MRI 2.1.1, this reduces the time needed for one
   million lookups from `13.5s` to `0.3s`!

   This is only for lookup by unified ID for now, since the other `find_by_*()`
   methods are actually searches that can return multiple values.  I'll look at
   nested hashmaps for those if there is a pressing performance need later.

## 0.0.2 (3 December 2013)

 * Remove JSON gem dependency since no longer supporting Ruby 1.8.7 anyhow.
 * Add `EmojiData.find_by_str` convenience method to match on a string.
 * Make default `EmojiChar.to_s()` the same as `EmojiChar.char()`


## 0.0.1 (7 June 2013)

 * Initial release