refactor: reorganize structsHEADmaster

1 files changed, 61 insertions, 0 deletions

diff --git a/src/paragraph/mod.rs b/src/paragraph/mod.rs
new file mode 100644
index 0000000..32ab429
--- /dev/null
+++ b/src/paragraph/mod.rs
@@ -0,0 +1,61 @@
+//! Paragraph.
+use crate::xml::element::{Element, Elements, FromElements};
+
+mod part;
+
+pub use part::{Error as PartError, Part};
+
+/// A paragraph.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct Paragraph
+{
+    parts: Vec<Part>,
+}
+
+impl Paragraph
+{
+    /// Returns a new `Paragraph`.
+    pub fn new(parts: impl IntoIterator<Item = Part>) -> Self
+    {
+        Self {
+            parts: parts.into_iter().collect(),
+        }
+    }
+
+    /// Returns the parts of the paragraph.
+    #[must_use]
+    pub fn parts(&self) -> &[Part]
+    {
+        &self.parts
+    }
+}
+
+impl FromElements for Paragraph
+{
+    type Error = Error;
+
+    fn from_elements(elements: &Elements) -> Result<Self, Self::Error>
+    {
+        let parts = elements
+            .into_iter()
+            .filter_map(|element| {
+                if matches!(element, Element::Comment(_)) {
+                    return None;
+                }
+
+                Some(Part::from_elements(&Elements::from([element.clone()])))
+            })
+            .collect::<Result<Vec<_>, _>>()?;
+
+        Ok(Self { parts })
+    }
+}
+
+/// [`Paragraph`] error.
+#[derive(Debug, thiserror::Error)]
+pub enum Error
+{
+    /// Invalid reference description part.
+    #[error("Invalid part")]
+    InvalidPart(#[from] PartError),
+}