mirror of https://github.com/k0kubun/xremap
Parse the basic config structure
Takashi Kokubun
2 years ago
parent
2f8029a200
commit
d9127e8a90
@ -1,36 +1,76 @@
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use std::error::Error;
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use std::fs;
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use yaml_rust::{Yaml, YamlLoader};
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pub fn load_config(filename: &str) -> Result<Config, Box<dyn Error>> {
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let yaml = YamlLoader::load_from_str(&fs::read_to_string(&filename)?)?;
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// println!("{:#?}", yaml);
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match &yaml[..] {
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[yaml] => {
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Ok(parse_config(yaml))
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},
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arr => {
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Err(format!("The number of top-level elements must be 1, but got: {}", arr.len()).into())
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}
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}
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}
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extern crate serde_yaml;
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fn parse_config(_yaml: &Yaml) -> Config {
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Config { modmap: vec![], keymap: vec![] }
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}
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use serde::de::{value, SeqAccess, Visitor};
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use serde::{de, Deserialize, Deserializer};
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use std::collections::HashMap;
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use std::error::Error;
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use std::{fmt, fs};
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#[derive(Debug)]
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#[derive(Debug, Deserialize)]
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#[serde(deny_unknown_fields)]
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pub struct Config {
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pub modmap: Vec<Modmap>,
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pub keymap: Vec<Keymap>,
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}
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#[derive(Debug)]
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#[derive(Debug, Deserialize)]
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pub struct Modmap {
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// TODO
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pub name: String,
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pub remap: HashMap<String, String>,
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pub wm_class: Option<WMClass>,
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}
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#[derive(Debug)]
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#[derive(Debug, Deserialize)]
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pub struct Keymap {
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// TODO
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pub name: String,
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pub remap: HashMap<String, String>,
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pub wm_class: Option<WMClass>,
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}
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#[derive(Debug, Deserialize)]
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pub struct WMClass {
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// TODO: validate only either `only` or `not` is set
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#[serde(default, deserialize_with = "string_or_vec")]
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pub only: Option<Vec<String>>,
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#[serde(default, deserialize_with = "string_or_vec")]
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pub not: Option<Vec<String>>,
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}
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pub fn load_config(filename: &str) -> Result<Config, Box<dyn Error>> {
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let yaml = fs::read_to_string(&filename)?;
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let config: Config = serde_yaml::from_str(&yaml)?;
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return Ok(config);
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}
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fn string_or_vec<'de, D>(deserializer: D) -> Result<Option<Vec<String>>, D::Error>
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where
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D: Deserializer<'de>,
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{
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struct StringOrVec;
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impl<'de> Visitor<'de> for StringOrVec {
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type Value = Option<Vec<String>>;
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fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
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formatter.write_str("string or list of strings")
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}
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fn visit_str<E>(self, s: &str) -> Result<Self::Value, E>
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where
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E: de::Error,
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{
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Ok(Some(vec![s.to_owned()]))
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}
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fn visit_seq<S>(self, seq: S) -> Result<Self::Value, S::Error>
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where
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S: SeqAccess<'de>,
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{
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let result: Vec<String> =
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Deserialize::deserialize(value::SeqAccessDeserializer::new(seq))?;
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Ok(Some(result))
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}
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}
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deserializer.deserialize_any(StringOrVec)
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}
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