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IBus-typing-booster README

Ibus-typing-booster

Get faster typing experience by intelligent context sensitive completion.

Backdrop & Introduction

Ibus-typing-booster is a completion input method to speed-up typing.

The project was started in 2010 for Fedora 15. The original purpose was to make typing of Indic languages easier and faster by providing completion and spell checking suggestions.

Originally it was forked from ibus-table whose developer was Yu Yuwei acevery@gmail.com, with contributions from Caius("kaio") chanceme@kaio.net.

Since then ibus-typing-booster has been improved to support many other languages as well (i.e. most languages except Chinese and Japanese are supported).

Recently the capability to type different languages at the same time without having to switch between languages has been added.

Developers

Features

Online documentation

You can find online documentation here:

Feature Requests & Bug reports

Contributing translations

The best (& the easiest) way to contribute translations is using this online translation platform.

Development

If you want to build from source or contribute to the development, see the ibus-typing-booster development page. There you'd also find the requirements for building from source for most systems.

Table of default key bindings

Note: A copy of these bindings is also shown below for convenience. Some of these key bindings can be customized in the setup tool.

The following table explains the defaults:

Key Combination Effect
Space Commit the preëdit (or the selected candidate, if any) and send a Space to the application, i.e. commit the typed string followed by a space.
Return or KP_Enter Commit the preëdit (or the selected candidate, if any) and send a Return or KP_Enter to the application.
Tab Bound by default to the commands "select_next_candidate" and "enable_lookup".
  • If the option "Enable suggestions by Tab" is not set (☐) then Tab always just executes "select_next_candidate" which selects the next candidate from the candidate list.
  • If the option "Enable suggestions by Tab" is set (☑), then no candidate list is shown by default:
    • If no candidate list is shown: "enable_lookup" is executed which requests to show the candidate list (nothing might be shown if no candidates can be found).
    • If a candidate list is already shown: "select_next_candidate" is executed which selects the next candidate in the list. After each commit and after each change of the contents of the preëdit, the candidate list will be hidden again until the "enable_lookup" requests it again.
Shift+Tab Bound by default to the command "select_previous_candidate". Selects the previous candidate in the candidate list.
Esc Bound by default to the command "cancel".
  • When a candidate is selected (no matter whether this is a normal lookup table or a "related" lookup table): Show the first page of that lookup table again with no candidate selected.
  • When no candidate is selected:
    • When a lookup table with related candidates is shown or a lookup table where upper/lower-case has been changed by typing the Shift key is shown: go back to the original lookup table.
    • When a normal lookup table is shown: close it and clear the preëdit.
Move cursor one typed key left in the preëdit text. May trigger a commit if the left end of the preëdit is reached.
Control+ Move cursor to the left end of the preëdit text. If the cursor is already at the left end of the preëdit text, trigger a commit and send a Control+ to the application.
Move cursor one typed key right in preëdit text. May trigger a commit if the right end of the preëdit is reached.
Ctrl+ Move cursor to the right end of the preëdit text. If the cursor is already at the right end of the preëdit text, trigger a commit and send a Ctrl+ to the application.
Backspace Remove the typed key to the left of the cursor in the preëdit text.
Ctrl+Backspace Remove everything to the left of the cursor in the preëdit text.
Delete Remove the typed key to the right of the cursor in the preëdit text.
Ctrl+Delete Remove everything to the right of the cursor in the preëdit text.
Bound by default to the command "select_next_candidate". Selects the next candidate.
Bound by default to the command "select_previous_candidate". Selects the previous candidate.
Pg Up Bound by default to the command "lookup_table_page_up". Shows the previous page of candidates.
Pg Down Bound by default to the command "lookup_table_page_down". Shows the next page of candidates.
F1 Commit the candidate with the label "1" followed by a space.
F2 Commit the candidate with the label "2" followed by a space.
... ...
F9 Commit the candidate with the label "9" followed by a space.
Ctrl+F1 Remove the candidate with the label "1" from the database of learned user input (If possible, if this candidate is not learned from user input, nothing happens).
Ctrl+F2 Remove the candidate with the label "2" from the database of learned user input (If possible, if this candidate is not learned from user input, nothing happens).
... ...
Ctrl+F9 Remove the candidate with the label "3" from the database of learned user input (If possible, if this candidate is not learned from user input, nothing happens).
1...9 Same as F1...F9 if the option "Use digits as select keys" is enabled. Enabling that option makes selecting candidates a bit easier because the number keys 1...9 are closer to the fingers than F1...F9 on most keyboards. On the other hand, it makes completing when typing numbers impossible and it makes typing strings which are combinations of letters and numbers like "A4" more difficult. If digits are used as select keys, numbers can only be typed when no candidate list is shown. In most cases this means that numbers can only be typed when nothing else has been typed yet and the preëdit is empty.
Ctrl+1...Ctrl+9 Same as Ctrl+F1...Ctrl+F9 if the option “Use digits as select keys” is enabled.
Alt+F6 Bound by default to the command "toggle_emoji_prediction". Toggle the emoji and Unicode symbol prediction on/off. This has the same result as using the setup tool to change this.
Alt+F9 Bound by default to the command "toggle_off_the_record". Toggle the "Off the record" mode. This has the same result as using the setup tool to change this. While "Off the record" mode is on, learning from user input is disabled. If learned user input is available, predictions are usually much better than predictions using only dictionaries. Therefore, one should use this option sparingly. Only if one wants to avoid saving secret user input to disk it might make sense to use this option temporarily.
Alt+F10 Bound by default to the command "setup". Opens the setup tool.
Alt+F12 Bound by default to the command "lookup_related". Shows related emoji and Unicode symbols or related words.
Alt+Space Insert a literal space into the preëdit.

When more than one input method at the same time is used, the following additional key bindings are available:

Key Combination Effect
Ctrl+ Bound by default to the command "next_input_method". Switches the input method used for the preëdit to the next input method.
Ctrl+ Bound by default to the command "previous_input_method". Switches the input method used for the preëdit to the previous method.

Mouse bindings

These mouse bindings are currently hard-coded and cannot yet be customized.

Mouse Event Effect
Button 1 click on a candidate Commit the candidate clicked on followed by a space (Same as F1...F9).
Ctrl + Button 1 click on a candidate Remove clicked candidate from database of learned user input (If possible, if this candidate is not learned from user input, nothing happens).
Button 3 clicks on a candidate Show related emoji and Unicode symbols or related words (Same as Alt+F12).
Ctrl + Button 3 clicks anywhere in the candidate list Toggle the emoji and Unicode symbol prediction on/off (Same as Alt+F6). This has the same result as using the setup tool to change this.
Alt + Button 3 clicks anywhere in the candidate list Toggle the “Off the record” mode (Same as Alt+F9).
This has the same result as using the setup tool to change this.
While "Off the record" mode is on, learning from user input is disabled. If learned user input is available, predictions are usually much better than those which predictions use only dictionaries. Therefore, one should use this option sparingly. Only if one wants to avoid saving secret user input to disk it might make sense to use this option temporarily.