# Regular expression match strategy.

$ cd full-sample

# Long flag.
$ zk list -q --debug-style --match-strategy re --match 'न.*ते'
><title>Strings are a complicated data structure</title> <path>oumc.md</path> (just now)
>
>  - Given the Hindi word "नमस्ते":
>

# Short flag.
$ zk list -q --debug-style -Mr --match 'न.*ते'
><title>Strings are a complicated data structure</title> <path>oumc.md</path> (just now)
>
>  - Given the Hindi word "नमस्ते":
>

# multiple match flags.
$ zk list -q --debug-style -Mr --match "mut.*" --match "thr..d"
><title>Mutex</title> <path>inbox/er4k.md</path> (just now)
>
>  - *   Abbreviation of *mutual exclusion*.
>    *   An approach to manage safely shared state by allowing only a single thread to access a protected value at one time.
>    *   A mutex *guards* a protected data with a *locking system*.
>    *   Managing mutexes is tricky, using [channels](../fwsj) is an easier alternative.
>        *   The main risk is to create *deadlocks*.
>        *   Thanks to its [Ownership](../88el) pattern, Rust makes sure we can't mess up when using locks.
>