Add positions to chewed errors.

1 files changed, 21 insertions, 0 deletions

diff --git a/chewed/src/position.rs b/chewed/src/position.rs
new file mode 100644
index 0000000..62d9b5a
--- /dev/null
+++ b/chewed/src/position.rs
@@ -0,0 +1,21 @@
+use std::fmt;
+
+#[derive(Clone, Copy, Debug, Hash, Eq, Ord, PartialEq, PartialOrd)]
+pub struct LineCol {
+    /// One-indexed line.
+    pub line: usize,
+    /// Zero-indexed column.
+    pub col: usize,
+}
+
+impl Default for LineCol {
+    fn default() -> Self {
+        Self { line: 1, col: 0 }
+    }
+}
+
+impl fmt::Display for LineCol {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}:{}", self.line, self.col)
+    }
+}