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nomatch

Summary

The nomatch rule is fired if no other rule is matched or fired in the same group, with some caveats.

Syntax

nomatch > ...

Description

nomatch is similar to the match rule, but instead of the rule being fired when a rule was matched, it will be used when no rule is matched in the group. A nomatch rule can include use() statements, return statements, beep statements and characters.

Caveat: nomatch will not be fired in a using keys group if the current keystroke does not produce a character in normal use (for example, modified keys, function keys). This is by design, and is intended to ensure that function keys, and modified keys such as Ctrl+X, were passed through to the underlying application.

Examples

Example: Using nomatch

begin > use(constraints)
group(constraints) using keys

c Block two diacritics on one vowel
any(vowel) any(diacritic) + any(diacriticKey) > context beep
nomatch > use(main)

group(main) using keys

+ any(diacriticKey) > index(diacritic, 1)

Platforms

The nomatch rule can be used in keyboards on all platforms.

WindowsmacOSLinuxDesktop webMobile webiOSAndroid

Version history

The nomatch rule was introduced in Keyman 3.0.

See also