Struct final_compression::ParamSet

pub struct ParamSet { /* private fields */ }

Represents parameter set for Compression The ParamSet can be obtained from String and &str ParamSet string expression is “key1=value1;key2=value2;key3=value3” format Internally it is a HashMap<String,, String>

Typical paramset used “level=3” (set compression level). See each compression algorithm for supported parameters

You can use “” as ParamSet and it won’t contain any actual parameter

Implementations

impl ParamSet

pub fn get_string<'a, 'b>( &'a self, key: &'b str, default_value: &'b str ) -> &'b strwhere 'a: 'b,

Read parameter identified by key as &str. If not set, use the default_value.

pub fn get_bool(&self, key: &str, default_value: bool) -> bool

Read parameter identified by key as bool. If not set, use the default_value.

only true (case insensitive) is considered as true. Other values are false.

pub fn get_parse<T: FromStr>(&self, key: &str, default_value: T) -> T

Read parameter identified by key as T (where T:FromStr). If not set, use default_value.

Typical FromStr includes all numbers (i32, usize, etc), or IpAddress, or any other supported type that implements FromStr trait.

Trait Implementations

impl From<&str> for ParamSet

fn from(what: &str) -> Self

Converts to this type from the input type.

impl From<String> for ParamSet

Load ParamSet from String

fn from(what: String) -> Self

what must be “key=value;key1=value1” format. Empty tokens (e.g. “key=value;;;”) are skipped. If you need to specify values that may contain special characters (e.g. include; or =), you can use ‘%%:’ to prefix your value, and the value should be url encoded. For example format of `key=%%:%3B%3B%3B;key2=%%:%3B%3B%3B“ => key = “;;;”, key2 = “;;;”

What if your key should be “%%:123”?

No worries, “%%:123” => “%%:%25%25%3A123”