Initial playnite support (#310)

src/platforms/playnite/playnite_parser.rs

@@ -0,0 +1,37 @@
+use nom::{
+    bytes::{
+        complete::{take_until, take_while},
+        streaming::take,
+    },
+    character::is_alphanumeric,
+    multi::many0,
+    IResult,
+};
+
+pub(crate) struct NamesAndId {
+    pub(crate) name: String,
+    pub(crate) id: String,
+}
+
+pub(crate) fn parse_db<'a>(content: &'a [u8]) -> nom::IResult<&'a [u8], Vec<NamesAndId>> {
+    many0(parse_game)(content)
+}
+
+fn parse_game(i: &[u8]) -> nom::IResult<&[u8], NamesAndId> {
+    let (i, _taken) = take_until("_id")(i)?;
+    let (i, _taken) = take_until("Image")(i)?;
+    let (i, prefix_and_id) = take_until("\\")(i)?;
+    let id_bytes = prefix_and_id
+        .split(|b| *b == 0 as u8)
+        .last()
+        .unwrap_or_default();
+    let id = String::from_utf8_lossy(id_bytes).to_string();
+
+    let (i, _taken) = take_until("InstallSizeGroup")(i)?;
+    let (i, _taken) = take_until("Name")(i)?;
+    let (i, _taken) = take(4usize)(i)?;
+    let (i, _taken) = take_while(|b| !is_alphanumeric(b))(i)?;
+    let (i, name_bytes) = take_while(|b| b != 0)(i)?;
+    let name = String::from_utf8_lossy(name_bytes).to_string();
+    IResult::Ok((i, NamesAndId { id, name }))
+}