Auto-commit whenever possible

Created by: bochecha

An IBus Cangjie user just told me about how that could be interesting.

Basically, the idea is that for every key stroke, we could try to get all the characters which code starts with the previously input keys in the background. If there is only one, just commit it automatically, and treat the last key stroke as the first of a new input.

Let's take an example to make it clearer...

First, let's assume that the set of all possible characters is:

Characters	Codes
日	a
明	ab
杲	ad

The sequence of events is as follows:

1. the user inputs a
2. the user inputs b
   • at this point, the previous input is a
   • we check for the number of characters with a code starting with a: there are 3
   • 3 is more than 1, so we do nothing
3. the user inputs c
   • at this point, the previous input is ab
   • we check the number of characters with a code starting with ab: there is only 1
   • we automatically commit 明 and consider that the last input (c) is the start of a new input

Basically, at step 3, we act as if the user had pressed ab then space then c.

I have two problems with this suggestion:

1. Doing queries for each input key might slow down typing too much. That needs to be tested carefully.
2. Automagically committing text might be very confusing for unsuspecting users? We'd need to have users test it.