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Clarify syntax selection algorithm behaviour

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cyqsimon 2023-10-31 15:10:33 +08:00
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src/syntax_mapping/builtins/README.md
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@ -19,7 +19,8 @@ by the TOML files within this directory, and embed them into the binary.
## File syntax
Each TOML file should contain a single section named `mappings`, with each of
its keys being a language identifier (first column of `bat -L`).
its keys being a language identifier (first column of `bat -L`; also referred to
as "target").
The value of each key should be an array of strings, with each item being a glob
matcher. We will call each of these items a "rule".
@ -104,5 +105,6 @@ mapping `*.conf` files to unknown.
Generally this should not be much of a concern, since rules should be written as
specifically as possible for each application.
Rules within each TOML file are inserted (and therefore processed) in the order
in which they are defined.
Rules within each TOML file are processed (and therefore matched) in the order
in which they are defined. At runtime, the syntax selection algorithm will
short-circuit and return the target of the first matching rule.