Release Note



Smart Chinese input methods contain word lists in order to predict what the user wants to type. Without those the user would need to select every single character out of multiple candidates, which slows down typing. Up to now, every smart Chinese input method contains and maintains it's own word list, thus re-inventing the wheel. Unfortunately these word lists differ in coverage and quality, some exist only for Simplified Chinese, others only for Traditional Chinese. Therefor it is currently not possible to convert typed strings from Simplified into Traditional Chinese and vice versa.


Work flow

  1. The input method framework calls the library together with some parameters upon triggering (e.g CRTL-Space).
  2. The library translates the string of keystrokes into either some transliteration system appropriate to the language the user is typing in, or a component based keyboard layout.
  3. Based on the transliterated string or the components, the library looks up potential characters in the .cin tables an places them into an array.
  4. Based on the list of candidate characters the library looks up the word list and returns a list of strings together with the array of candidate characters to the input method module.


  1. language code to lookup the correct word list (e.g. cmn = Mandarin, yue = Cantonese, nan= Minnan)
  2. whether the user wants Simplified or Traditional Chinese as output (hans vs. hant)
  3. fuzzy search (on/off) -- include similar pronunciations to what the user has typed, default: off
  4. ID of the input method (to select the proper .cin table)
  5. if using Zhuyin input method, the ID of the keyboard layout (e.g. regular, eten, ...)
  6. return
    • a) only character candidates b) a) plus list of strings according to what the user has typed already c) a) plus b) plus list of possible strings for string completion
  7. if using Zhuyin input method, attach Bopomofo to the characters (on/off), default: off


Test/Demo Plan


Unresolved issues

This should highlight any issues that should be addressed in further specifications, and not problems with the specification itself; since any specification with problems cannot be approved.


DesktopTeam/Specs/Lucid/IBusChinese (last edited 2009-12-02 03:09:18 by www)