Split parser implementation

This commit splits the parser implementation and moves the code to the
types it parses.

This way we reduce the code duplication.

A util module was added for the trivial parser functions.

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/package/name.rs b/src/package/name.rs
index f42c827..44b3f07 100644
--- a/src/package/name.rs
+++ b/src/package/name.rs
@@ -1,5 +1,6 @@
 use std::ops::Deref;
 use serde::Deserialize;
+use pom::parser::Parser as PomParser;
 
 #[derive(Deserialize, Clone, Debug, Hash, Eq, PartialEq, Ord, PartialOrd)]
 #[serde(transparent)]
@@ -23,3 +24,13 @@ impl std::fmt::Display for PackageName {
         self.0.fmt(f)
     }
 }
+
+impl PackageName {
+    pub fn parser<'a>() -> PomParser<'a, u8, Self> {
+        use crate::util::parser::*;
+        (letters() + ((letters() | numbers()).repeat(0..)))
+            .collect()
+            .convert(|b| String::from_utf8(b.to_vec()).map(Self::from))
+    }
+}
+