Rust library for parsing configuration files

The Impossible Astronaut

Last update: Jan 5, 2022

Related tags

Parsing config rust parser settings library configuration-management

Overview

configster

Rust library for parsing configuration files

Config file format

The 'option' can be any string with no whitespace.

arbitrary_option = false
max_users = 30

The value for an option following the equal sign may have "attributes" that are separated by a delimiter. The delimiter is specified when calling parse_file():

parse_file("./config_test.conf", ',')

option = Blue, light, shiny
# option = nothing, void, empty, commented_out

An option is not required to be followed by a value. It can be used to disable a default feature.

FeatureOff

API

Calling parse_file() will return a single vector containing a struct (OptionProperties) for each option line in the config file. The attributes for a value are stored in a vector within the "Value" struct.

#[derive(Debug, PartialEq)]
pub struct Value {
    pub primary: String,
    pub attributes: Vec<String>,
}

#[derive(Debug, PartialEq)]
pub struct OptionProperties {
    pub option: String,
    pub value: Value,
}

Example Code

use std::io;

fn main() -> Result<(), io::Error> {

    let config_vec = configster::parse_file("./config_test.conf", ',')?;

    for i in &config_vec {
        println!("Option:'{}' | value '{}'", i.option, i.value.primary);

        for j in &i.value.attributes {
            println!("attr:'{}`", j);
        }
        println!();
    }
    Ok(())
}

See docs.rs/configster/ for generated API documentation.

Contributing

See CONTRIBUTING.md

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Comments

When "InvalidOption" is assigned, also show line number

I think it would be a worthwhile improvement if the line number were added to "InvalidOption", such as "InvalidOptionLnn" or "InvalidOptionLine_nn".

https://github.com/theimpossibleastronaut/configster/blob/96ab97d84ea3b222d88f0d48121fdf94ac08ae58/src/lib.rs#L139-L140

https://github.com/theimpossibleastronaut/configster/blob/96ab97d84ea3b222d88f0d48121fdf94ac08ae58/src/lib.rs#L95-L96
enhancement

opened by andy5995 0
Document the two public structures

These public structs should be documented

https://github.com/theimpossibleastronaut/configster/blob/96ab97d84ea3b222d88f0d48121fdf94ac08ae58/src/lib.rs#L5-L15
documentation

opened by andy5995 0

Releases(v0.1.1)

v0.1.1(Aug 5, 2020)
v0.1.1 released (2020-08-05)

When an invalid option is encountered, 'InvalidOption_on_Linexx' is assigned to the option (instead of 'InvalidOption').

Added get_ver() function. Returns a String containing the library version.

Added more docs to the README and the API.

Code cleanup

[]crates-url
Source code(tar.gz)
Source code(zip)
configster-0.1.1.crate(5.71 KB)
v0.1.0(Jul 31, 2020)

The first version of this library consists of one public function. See https://crates.io/crates/configster for information about adding this crate to your rust project, as well as the API documentation.

Thanks to the rust community (##rust on Freenode and the Rust Community Forum).

[]crates-url
Source code(tar.gz)
Source code(zip)
configster-0.1.0.crate(4.88 KB)

Owner

The Impossible Astronaut

A collection of developers working on some random sources that we like

GitHub

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Universal configuration library parser

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