GSoC/GCI Archive
Google Code-in 2014 Haiku

Write a Unicode input method ***BONUS***

completed by: :Puckipedia

mentors: mmu_man, Adrien Destugues - PulkoMandy, Jerome Duval

The goal is to write an input method that allows entering characters by typing their Unicode hexadecimal code.

You'll need to:

  • Write an input method skeleton (you can check the unfinished ones in Haiku and the working Canna source code)
  • Parse the input:
    • check that each typed character is a hexadecimal digit
    • append it to a string and parse it as hexadecimal
  • On Enter and/or after a timeout, validate the proposed Unicode (not all hexadecimal codes are allowed, you'll probably need to use an ICU API for this, possibly u_charType())
  • Send the resulting character to the application using the input method protocol

Handling the input method activation via a shortcut can be left out for now as input_server currently only supports enabling the selected input method but not an arbitrary one on a specific shortcut yet.