Integrate plain list parser into the parser tree.

src/parser/document.rs

@@ -11,6 +11,7 @@ use nom::combinator::verify;
 use nom::multi::many0;
 use nom::multi::many1;
 use nom::multi::many1_count;
+use nom::multi::many_till;
 use nom::sequence::tuple;
 
 use crate::parser::element::element;
@@ -25,6 +26,7 @@ use super::error::Res;
 use super::object::Object;
 use super::parser_with_context::parser_with_context;
 use super::source::Source;
+use super::util::exit_matcher_parser;
 use super::util::get_consumed;
 use super::util::start_of_line;
 use super::util::trailing_whitespace;
@@ -101,7 +103,11 @@ fn section<'r, 's>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, Sec
         .with_additional_node(ContextElement::Context("section"));
     not(|i| parser_context.check_exit_matcher(i))(input)?;
     let element_matcher = parser_with_context!(element)(&parser_context);
-    let (remaining, children) = many1(element_matcher)(input)?;
+    let exit_matcher = parser_with_context!(exit_matcher_parser)(&parser_context);
+    let (remaining, (children, _exit_contents)) = verify(
+        many_till(element_matcher, exit_matcher),
+        |(children, _exit_contents)| !children.is_empty(),
+    )(input)?;
     let source = get_consumed(input, remaining);
     Ok((remaining, Section { source, children }))
 }

src/parser/element.rs

@@ -1,13 +1,13 @@
-use crate::parser::parser_with_context::parser_with_context;
-use nom::combinator::map;
-use nom::combinator::not;
-
 use super::error::Res;
 use super::greater_element::PlainList;
 use super::lesser_element::Paragraph;
 use super::paragraph::paragraph;
+use super::plain_list::plain_list;
 use super::source::Source;
 use super::Context;
+use crate::parser::parser_with_context::parser_with_context;
+use nom::branch::alt;
+use nom::combinator::map;
 
 #[derive(Debug)]
 pub enum Element<'s> {
@@ -25,9 +25,19 @@ impl<'s> Source<'s> for Element<'s> {
 }
 
 pub fn element<'r, 's>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, Element<'s>> {
-    not(|i| context.check_exit_matcher(i))(input)?;
+    let non_paragraph_matcher = parser_with_context!(non_paragraph_element)(context);
-
     let paragraph_matcher = parser_with_context!(paragraph)(context);
 
-    map(paragraph_matcher, Element::Paragraph)(input)
+    alt((
+        non_paragraph_matcher,
+        map(paragraph_matcher, Element::Paragraph),
+    ))(input)
+}
+
+pub fn non_paragraph_element<'r, 's>(
+    context: Context<'r, 's>,
+    input: &'s str,
+) -> Res<&'s str, Element<'s>> {
+    let plain_list_matcher = parser_with_context!(plain_list)(context);
+    map(plain_list_matcher, Element::PlainList)(input)
 }

src/parser/paragraph.rs

@@ -11,6 +11,7 @@ use crate::parser::parser_context::ContextElement;
 use crate::parser::parser_context::ExitMatcherNode;
 use crate::parser::parser_with_context::parser_with_context;
 
+use super::element::non_paragraph_element;
 use super::error::Res;
 use super::lesser_element::Paragraph;
 use super::util::blank_line;
@@ -35,6 +36,10 @@ pub fn paragraph<'r, 's>(context: Context<'r, 's>, input: &'s str) -> Res<&'s st
 }
 
 fn paragraph_end<'r, 's>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, &'s str> {
-    // TODO: Other elements should also end paragraphs
+    let non_paragraph_element_matcher = parser_with_context!(non_paragraph_element)(context);
-    alt((recognize(tuple((line_ending, many1(blank_line)))), eof))(input)
+    alt((
+        recognize(tuple((line_ending, many1(blank_line)))),
+        recognize(non_paragraph_element_matcher),
+        eof,
+    ))(input)
 }

src/parser/plain_list.rs

@@ -1,24 +1,3 @@
-use nom::branch::alt;
-use nom::bytes::complete::tag;
-use nom::character::complete::digit1;
-use nom::character::complete::one_of;
-use nom::character::complete::space0;
-use nom::combinator::eof;
-use nom::combinator::not;
-use nom::combinator::recognize;
-use nom::combinator::verify;
-use nom::multi::many0;
-use nom::multi::many_till;
-use nom::sequence::tuple;
-
-use crate::parser::element::element;
-use crate::parser::parser_context::ChainBehavior;
-use crate::parser::parser_context::ContextElement;
-use crate::parser::parser_context::ExitMatcherNode;
-use crate::parser::util::exit_matcher_parser;
-use crate::parser::util::get_consumed;
-use crate::parser::util::start_of_line;
-
 use super::error::CustomError;
 use super::error::MyError;
 use super::error::Res;
@@ -27,6 +6,24 @@ use super::greater_element::PlainListItem;
 use super::parser_with_context::parser_with_context;
 use super::util::non_whitespace_character;
 use super::Context;
+use crate::parser::element::element;
+use crate::parser::parser_context::ChainBehavior;
+use crate::parser::parser_context::ContextElement;
+use crate::parser::parser_context::ExitMatcherNode;
+use crate::parser::util::exit_matcher_parser;
+use crate::parser::util::get_consumed;
+use crate::parser::util::start_of_line;
+use nom::branch::alt;
+use nom::bytes::complete::tag;
+use nom::character::complete::digit1;
+use nom::character::complete::one_of;
+use nom::character::complete::space0;
+use nom::combinator::eof;
+use nom::combinator::recognize;
+use nom::combinator::verify;
+use nom::multi::many0;
+use nom::multi::many_till;
+use nom::sequence::tuple;
 
 #[allow(dead_code)]
 pub fn plain_list<'r, 's>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, PlainList<'s>> {