Start interpreting pest output

src/parse.rs

@@ -1,3 +1,34 @@
+use std::result;
+
+use pest::error::Error;
+use pest::iterators::Pair;
+use pest::Parser;
+
+use crate::commands::{Command, Task};
+
 #[derive(pest_derive::Parser)]
-#[grammar = "parse/grammar.pest"]
-pub struct MyParser;
+#[grammar = "parse/todayfile.pest"]
+struct TodayfileParser;
+
+type Result<T> = result::Result<T, Error<Rule>>;
+
+pub fn parse(input: &str) -> Result<Vec<Command>> {
+    let mut pairs = TodayfileParser::parse(Rule::file, input)?;
+    let file = pairs.next().unwrap();
+    let commands = file.into_inner();
+    commands.map(parse_command).collect()
+}
+
+fn parse_command(p: Pair<Rule>) -> Result<Command> {
+    match p.as_rule() {
+        Rule::task => parse_task(p).map(Command::Task),
+        Rule::note => todo!(),
+        Rule::birthday => todo!(),
+        _ => unreachable!(),
+    }
+}
+
+fn parse_task(p: Pair<Rule>) -> Result<Task> {
+    dbg!(p);
+    todo!()
+}