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- Key Tables
- ----------
-
- Files with names of the form *.ktb are key tables, and with names of the form
- *.kti are key subtables. They are used by BRLTTY to bind keyboard key
- combinations to BRLTTY commands.
-
- A key table consists of a sequence of directives, one per line, which define
- what each key combination is to be bound to. UTF-8 character encoding must be
- used. White-space (blanks, tabs) at the beginning of a line, as well as before
- and/or after any operand, is ignored. Lines containing only white-space are
- ignored. If the first non-white-space character of a line is "#" then that line
- is a comment and is ignored.
-
- ===============================================================================
-
- The Bind Directive
- ------------------
-
- bind <keys> <command> # <comment>
-
- Use the "bind" directive to bind a key combination to a command.
-
- The <keys> operand specifies the key combination to be bound. It is a sequence
- of one or more key names (see the file "ktb_keynames.h" within the "Programs"
- subdirectory of BRLTTY's source tree) separated by plus (+) signs. The initial
- keys are known as modifiers and may be pressed in any order. The last key must
- be pressed while all the modifiers are being held.
-
- The <command> operand specifies the name of a BRLTTY command (see the
- "cmds.auto.h" file within the "Programs" subdirectory of BRLTTY's build tree).
- * For feature activation commands:
- + If no modifier is appended then the state of the feature is toggled.
- + If the modifier +on is appended then the feature is turned on.
- + If the modifier +off is appended then the feature is turned off.
- * For character commands: The command acts on the character where the cursor
- is.
- * For base commands: The modifier +<n>, wehre <n> is a non-negative integer,
- may be appended. If this modifier isn't specified then 0 is assumed.
-
- Examples:
-
- bind CapsLock+Enter CsrTrk
- bind CapsLock+O CsrTrk+off
- bind CapsLock+P CsrTrk+on
- bind KPInsert+1 GoToMark+1
-
- ===============================================================================
-
- The Include Directive
- ---------------------
-
- include <file> # <comment>
-
- Use the "include" directive to include the content of a key subtable. It is
- recursive, which means that any key subtable can itself include yet another key
- subtable. Care must be taken to ensure that an "include loop" is not created.
-
- The <file> operand specifies the file to be included. It may be either a
- relative or an absolute path. If relative, it is anchored at the directory
- containing the including file.
-
- ===============================================================================
-
-