Add the code structure for planning.

src/parser/element.rs

@@ -11,6 +11,7 @@ use super::lesser_element::DiarySexp;
 use super::lesser_element::ExampleBlock;
 use super::lesser_element::ExportBlock;
 use super::lesser_element::Paragraph;
+use super::lesser_element::Planning;
 use super::lesser_element::SrcBlock;
 use super::lesser_element::VerseBlock;
 use super::source::Source;
@@ -34,6 +35,7 @@ pub enum Element<'s> {
     SrcBlock(SrcBlock<'s>),
     Clock(Clock<'s>),
     DiarySexp(DiarySexp<'s>),
+    Planning(Planning<'s>),
 }
 
 impl<'s> Source<'s> for Element<'s> {
@@ -55,6 +57,7 @@ impl<'s> Source<'s> for Element<'s> {
             Element::SrcBlock(obj) => obj.source,
             Element::Clock(obj) => obj.source,
             Element::DiarySexp(obj) => obj.source,
+            Element::Planning(obj) => obj.source,
         }
     }
 }

src/parser/lesser_element.rs

@@ -69,6 +69,11 @@ pub struct DiarySexp<'s> {
     pub source: &'s str,
 }
 
+#[derive(Debug)]
+pub struct Planning<'s> {
+    pub source: &'s str,
+}
+
 impl<'s> Paragraph<'s> {
     pub fn of_text(input: &'s str) -> Self {
         let mut objects = Vec::with_capacity(1);
@@ -135,3 +140,9 @@ impl<'s> Source<'s> for DiarySexp<'s> {
         self.source
     }
 }
+
+impl<'s> Source<'s> for Planning<'s> {
+    fn get_source(&'s self) -> &'s str {
+        self.source
+    }
+}

src/parser/mod.rs

@@ -20,6 +20,7 @@ mod parser_context;
 mod parser_with_context;
 mod plain_list;
 mod plain_text;
+mod planning;
 mod property_drawer;
 pub mod sexp;
 mod source;
@@ -47,6 +48,7 @@ pub use lesser_element::DiarySexp;
 pub use lesser_element::ExampleBlock;
 pub use lesser_element::ExportBlock;
 pub use lesser_element::Paragraph;
+pub use lesser_element::Planning;
 pub use lesser_element::SrcBlock;
 pub use lesser_element::TableCell;
 pub use lesser_element::VerseBlock;

src/parser/planning.rs

@@ -0,0 +1,8 @@
+use super::Context;
+use crate::error::Res;
+use crate::parser::lesser_element::Planning;
+
+#[tracing::instrument(ret, level = "debug")]
+pub fn planning<'r, 's>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, Planning<'s>> {
+    todo!()
+}