config: change default config to use toml-based configuration

toml-config/src/config/parsers/shortcuts.rs

@@ -0,0 +1,72 @@
+use {
+    crate::{
+        config::{
+            context::Context,
+            parser::{DataType, ParseResult, Parser, UnexpectedDataType},
+            parsers::{action::ActionParser, modified_keysym::ModifiedKeysymParser},
+            Action,
+        },
+        toml::{
+            toml_span::{Span, Spanned, SpannedExt},
+            toml_value::Value,
+        },
+    },
+    indexmap::IndexMap,
+    jay_config::keyboard::ModifiedKeySym,
+    std::collections::HashSet,
+    thiserror::Error,
+};
+
+#[derive(Debug, Error)]
+pub enum ShortcutsParserError {
+    #[error(transparent)]
+    Expected(#[from] UnexpectedDataType),
+}
+
+pub struct ShortcutsParser<'a>(pub &'a Context<'a>);
+
+impl Parser for ShortcutsParser<'_> {
+    type Value = Vec<(ModifiedKeySym, Action)>;
+    type Error = ShortcutsParserError;
+    const EXPECTED: &'static [DataType] = &[DataType::Table];
+
+    fn parse_table(
+        &mut self,
+        _span: Span,
+        table: &IndexMap<Spanned<String>, Spanned<Value>>,
+    ) -> ParseResult<Self> {
+        let mut used_keys = HashSet::<Spanned<ModifiedKeySym>>::new();
+        let mut res = vec![];
+        for (key, value) in table.iter() {
+            let keysym = match ModifiedKeysymParser.parse_string(key.span, &key.value) {
+                Ok(k) => k,
+                Err(e) => {
+                    log::warn!("Could not parse keysym: {}", self.0.error(e));
+                    continue;
+                }
+            };
+            let action = match value.parse(&mut ActionParser(self.0)) {
+                Ok(a) => a,
+                Err(e) => {
+                    log::warn!(
+                        "Could not parse action for keysym {}: {}",
+                        key.value,
+                        self.0.error(e)
+                    );
+                    continue;
+                }
+            };
+            let spanned = keysym.spanned(key.span);
+            if let Some(prev) = used_keys.get(&spanned) {
+                log::warn!(
+                    "Duplicate key overrides previous definition: {}",
+                    self.0.error3(spanned.span)
+                );
+                log::info!("Previous definition here: {}", self.0.error3(prev.span));
+            }
+            used_keys.insert(spanned);
+            res.push((keysym, action));
+        }
+        Ok(res)
+    }
+}