Add expanded_cigar_iter

Author: willchet

CHANGELOG.md

@@ -12,6 +12,7 @@ is roughly based on [Keep a Changelog], and this project tries to adheres to
 - Added macros for facilitating floating point comparisons under the `fuzzing` feature
 - Implemented `Arbitrary` for PHMM-related types under the `fuzzing feature
 - Added `SamHmmWriter` for writing pHMMs to SAM model files
+- Added `expanded_cigar_iter` for iterating over the operations in a CIGAR string
 
 ### Changed
 

Cargo.lock

@@ -1,7 +1,7 @@
 [package]
 edition = "2024"
 name = "zoe"
-version = "0.0.18-dev"
+version = "0.0.19-dev"
 rust-version = "1.88"
 description = "A nightly library for viral genomics"
 license = "Apache-2.0"

Cargo.toml

@@ -73,6 +73,13 @@ impl Cigar {
         CigletIterator::new(&self.0)
     }
 
+    /// Returns an iterator over the opcodes in the CIGAR string, with each
+    /// repeated the number of times specified in the CIGAR string.
+    #[inline]
+    pub fn expanded_cigar_iter(&self) -> impl Iterator<Item = u8> {
+        self.iter().flat_map(|Ciglet { inc, op }| std::iter::repeat_n(op, inc))
+    }
+
     /// Validates that a CIGAR only contains valid (inc, op) pairs
     #[inline]
     #[must_use]