Struct proteus::parser::Parser

pub struct Parser {}

This type represents a set of static methods for parsing transformation syntax into Action's.

The parser is responsible for parsing the transformation action specific syntax, take the following source syntax: join(" ", const("Mr."), first_name, last_name) the parser knows how to breakdown the syntax into a join action which calls the const action, and 2 getter actions and joins those actions results.

Actions currently supported include:

• const eg. const(<value>)
• join eg. `join(<separator, )

Implementations

impl Parser

pub fn add_action_parser(
    name: &str,
    f: &'static ActionParserFn
) -> Result<(), Error>

add_action_parser adds an Action parsing function to dynamically be parsed. NOTE: this WILL overwrite any pre-existing functions with the same name.

name only accepts ASCII letters, numbers and _ equivalent to [a-zA-Z0-9_].

pub fn parse(source: &str, destination: &str) -> Result<Box<dyn Action>, Error>

parses a single transformation action to be taken with the provided source & destination.

pub fn parse_multi(
    parsables: &[Parsable<'_>]
) -> Result<Vec<Box<dyn Action>>, Error>

parses a set of transformation actions into Action's.

pub fn parse_multi_from_str(s: &str) -> Result<Vec<Box<dyn Action>>, Error>

parses a set of transformation actions into Action's from a JSON string of serialized Parsable structs.

pub fn parse_action(source: &str) -> Result<Box<dyn Action>, Error>

parses an Action given the provided str. This is primarily used as a helper in custom Action Parsers.