org_mode_samples/greater_element/property_drawer/empty.org

@@ -1,32 +1,3 @@
-* Empty
-:PROPERTIES:
-:END:
-* Single new line
 :PROPERTIES:
 
-:END:
-* Single line with spaces
-:PROPERTIES:
-      
-:END:
-* Many lines, first line without spaces
-:PROPERTIES:
-
-
-
-
-:END:
-* Many lines, first line with spaces
-:PROPERTIES:
-      
-
-
-
-:END:
-* Many lines, first line with spaces, later line with spaces
-:PROPERTIES:
-      
-
-    
-
 :END:

src/parser/drawer.rs

@@ -13,9 +13,7 @@ use nom::sequence::tuple;
 
 use super::affiliated_keyword::parse_affiliated_keywords;
 use super::org_source::OrgSource;
-use super::paragraph::empty_paragraph;
 use super::util::maybe_consume_trailing_whitespace_if_not_exiting;
-use crate::context::bind_context;
 use crate::context::parser_with_context;
 use crate::context::ContextElement;
 use crate::context::ExitClass;
@@ -24,6 +22,7 @@ use crate::context::RefContext;
 use crate::error::CustomError;
 use crate::error::Res;
 use crate::parser::element_parser::element;
+use crate::parser::util::blank_line;
 use crate::parser::util::exit_matcher_parser;
 use crate::parser::util::get_consumed;
 use crate::parser::util::immediate_in_section;
@@ -32,6 +31,7 @@ use crate::parser::util::WORD_CONSTITUENT_CHARACTERS;
 use crate::types::Drawer;
 use crate::types::Element;
 use crate::types::Keyword;
+use crate::types::Paragraph;
 
 #[cfg_attr(
     feature = "tracing",
@@ -107,14 +107,23 @@ fn children<'b, 'g, 'r, 's>(
     let element_matcher = parser_with_context!(element(true))(context);
     let exit_matcher = parser_with_context!(exit_matcher_parser)(context);
 
-    if let Ok((remaining, (_not_exit, empty_para))) =
-        tuple((not(exit_matcher), bind_context!(empty_paragraph, context)))(input)
+    let (remaining, children) = match tuple((
+        not(exit_matcher),
+        blank_line,
+        many_till(blank_line, exit_matcher),
+    ))(input)
     {
-        return Ok((remaining, vec![Element::Paragraph(empty_para)]));
+        Ok((remain, (_not_immediate_exit, first_line, (_trailing_whitespace, _exit_contents)))) => {
+            let source = get_consumed(input, remain);
+            let element = Element::Paragraph(Paragraph::of_text(source.into(), first_line.into()));
+            (remain, vec![element])
         }
-
-    let (remaining, (children, _exit_contents)) = many_till(element_matcher, exit_matcher)(input)?;
-
+        Err(_) => {
+            let (remaining, (children, _exit_contents)) =
+                many_till(element_matcher, exit_matcher)(input)?;
+            (remaining, children)
+        }
+    };
     Ok((remaining, children))
 }
 

src/parser/headline.rs

@@ -66,7 +66,6 @@ fn _heading<'b, 'g, 'r, 's>(
     let (remaining, pre_headline) = headline(context, input, parent_star_count)?;
     let section_matcher = bind_context!(section, context);
     let heading_matcher = bind_context!(heading(pre_headline.star_count), context);
-    let contents_begin = remaining;
     let (remaining, maybe_section) =
         opt(map(section_matcher, DocumentElement::Section))(remaining)?;
     let (remaining, _ws) = opt(tuple((start_of_line, many0(blank_line))))(remaining)?;
@@ -92,7 +91,6 @@ fn _heading<'b, 'g, 'r, 's>(
     };
     let is_archived = pre_headline.tags.contains(&"ARCHIVE");
 
-    let contents = get_consumed(contents_begin, remaining);
     let source = get_consumed(input, remaining);
     Ok((
         remaining,
@@ -114,11 +112,6 @@ fn _heading<'b, 'g, 'r, 's>(
             scheduled,
             deadline,
             closed,
-            contents: if contents.len() > 0 {
-                Some(Into::<&str>::into(contents))
-            } else {
-                None
-            },
         },
     ))
 }

src/parser/horizontal_rule.rs

@@ -38,7 +38,7 @@ where
         space0,
         alt((line_ending, eof)),
     )))(remaining)?;
-    let (remaining, post_blank) =
+    let (remaining, _trailing_ws) =
         maybe_consume_trailing_whitespace_if_not_exiting(context, remaining)?;
     let source = get_consumed(input, remaining);
     Ok((
@@ -49,7 +49,6 @@ where
                 context.get_global_settings(),
                 affiliated_keywords,
             ),
-            post_blank: post_blank.map(Into::<&str>::into),
         },
     ))
 }

src/parser/paragraph.rs

@@ -1,8 +1,6 @@
 use nom::branch::alt;
-use nom::character::complete::space1;
 use nom::combinator::consumed;
 use nom::combinator::eof;
-use nom::combinator::opt;
 use nom::combinator::recognize;
 use nom::combinator::verify;
 use nom::multi::many1;
@@ -15,7 +13,6 @@ use super::org_source::OrgSource;
 use super::util::blank_line;
 use super::util::get_consumed;
 use super::util::maybe_consume_trailing_whitespace_if_not_exiting;
-use super::util::org_line_ending;
 use crate::context::parser_with_context;
 use crate::context::ContextElement;
 use crate::context::ExitClass;
@@ -75,57 +72,6 @@ where
     ))
 }
 
-#[cfg_attr(
-    feature = "tracing",
-    tracing::instrument(ret, level = "debug", skip(context))
-)]
-pub(crate) fn empty_paragraph<'b, 'g, 'r, 's>(
-    context: RefContext<'b, 'g, 'r, 's>,
-    input: OrgSource<'s>,
-) -> Res<OrgSource<'s>, Paragraph<'s>> {
-    // If it is just a single newline then source, contents, and post-blank are "\n".
-    // If it has multiple newlines then contents is the first "\n" and post-blank is all the new lines.
-    // If there are any spaces on the first line then post-blank excludes the first line.
-
-    let exit_matcher = parser_with_context!(exit_matcher_parser)(context);
-
-    let (remaining, first_line_with_spaces) =
-        opt(recognize(tuple((space1, org_line_ending))))(input)?;
-
-    let post_blank_begin = remaining;
-
-    if let Some(first_line_with_spaces) = first_line_with_spaces {
-        let (remaining, _additional_lines) =
-            recognize(many_till(blank_line, exit_matcher))(remaining)?;
-        let post_blank = get_consumed(post_blank_begin, remaining);
-        let source = get_consumed(input, remaining);
-        Ok((
-            remaining,
-            Paragraph::of_text_full(
-                Into::<&str>::into(source),
-                Into::<&str>::into(first_line_with_spaces),
-                Some(Into::<&str>::into(first_line_with_spaces)),
-                Some(Into::<&str>::into(post_blank)),
-            ),
-        ))
-    } else {
-        let (remaining, first_line) = blank_line(remaining)?;
-        let (remaining, _additional_lines) =
-            recognize(many_till(blank_line, exit_matcher))(remaining)?;
-        let post_blank = get_consumed(post_blank_begin, remaining);
-        let source = get_consumed(input, remaining);
-        Ok((
-            remaining,
-            Paragraph::of_text_full(
-                Into::<&str>::into(source),
-                Into::<&str>::into(first_line),
-                Some(Into::<&str>::into(first_line)),
-                Some(Into::<&str>::into(post_blank)),
-            ),
-        ))
-    }
-}
-
 #[cfg_attr(
     feature = "tracing",
     tracing::instrument(ret, level = "debug", skip(context))
@@ -153,7 +99,6 @@ mod tests {
     use crate::context::List;
     use crate::parser::element_parser::element;
     use crate::parser::org_source::OrgSource;
-    use crate::parser::paragraph::empty_paragraph;
     use crate::types::StandardProperties;
 
     #[test]
@@ -170,17 +115,4 @@ mod tests {
         assert_eq!(first_paragraph.get_source(), "foo bar baz\n\n");
         assert_eq!(second_paragraph.get_source(), "lorem ipsum");
     }
-
-    #[test]
-    fn paragraph_whitespace() {
-        let input = OrgSource::new("\n");
-        let global_settings = GlobalSettings::default();
-        let initial_context = ContextElement::document_context();
-        let initial_context = Context::new(&global_settings, List::new(&initial_context));
-        let paragraph_matcher = bind_context!(empty_paragraph, &initial_context);
-        let (remaining, paragraph) = paragraph_matcher(input).expect("Parse paragraph");
-        assert_eq!(Into::<&str>::into(remaining), "");
-        assert_eq!(paragraph.get_source(), "\n");
-        assert_eq!(paragraph.get_contents(), Some("\n"));
-    }
 }

src/parser/planning.rs

@@ -33,7 +33,7 @@ pub(crate) fn planning<'b, 'g, 'r, 's>(
         many1(parser_with_context!(planning_parameter)(context))(remaining)?;
     let (remaining, _trailing_ws) = tuple((space0, org_line_ending))(remaining)?;
 
-    let (remaining, post_blank) =
+    let (remaining, _trailing_ws) =
         maybe_consume_trailing_whitespace_if_not_exiting(context, remaining)?;
     let source = get_consumed(input, remaining);
 
@@ -62,7 +62,6 @@ pub(crate) fn planning<'b, 'g, 'r, 's>(
             scheduled,
             deadline,
             closed,
-            post_blank: post_blank.map(Into::<&str>::into),
         },
     ))
 }

src/parser/property_drawer.rs

@@ -6,7 +6,6 @@ use nom::character::complete::anychar;
 use nom::character::complete::line_ending;
 use nom::character::complete::space0;
 use nom::character::complete::space1;
-use nom::combinator::consumed;
 use nom::combinator::eof;
 use nom::combinator::opt;
 use nom::combinator::recognize;
@@ -65,11 +64,14 @@ pub(crate) fn property_drawer<'b, 'g, 'r, 's>(
     let parser_context = context.with_additional_node(&contexts[0]);
     let parser_context = parser_context.with_additional_node(&contexts[1]);
     let parser_context = parser_context.with_additional_node(&contexts[2]);
-    let (remaining, (contents, children)) =
-        consumed(parser_with_context!(children)(&parser_context))(remaining)?;
+
+    let node_property_matcher = parser_with_context!(node_property)(&parser_context);
+    let exit_matcher = parser_with_context!(exit_matcher_parser)(&parser_context);
+    let (remaining, (children, _exit_contents)) =
+        many_till(node_property_matcher, exit_matcher)(remaining)?;
     let (remaining, _end) = property_drawer_end(&parser_context, remaining)?;
 
-    let (remaining, post_blank) =
+    let (remaining, _trailing_ws) =
         maybe_consume_trailing_whitespace_if_not_exiting(context, remaining)?;
     let source = get_consumed(input, remaining);
 
@@ -78,31 +80,10 @@ pub(crate) fn property_drawer<'b, 'g, 'r, 's>(
         PropertyDrawer {
             source: source.into(),
             children,
-            contents: if contents.len() > 0 {
-                Some(contents.into())
-            } else {
-                None
-            },
-            post_blank: post_blank.map(Into::<&str>::into),
         },
     ))
 }
 
-#[cfg_attr(
-    feature = "tracing",
-    tracing::instrument(ret, level = "debug", skip(context))
-)]
-fn children<'b, 'g, 'r, 's>(
-    context: RefContext<'b, 'g, 'r, 's>,
-    input: OrgSource<'s>,
-) -> Res<OrgSource<'s>, Vec<NodeProperty<'s>>> {
-    let node_property_matcher = parser_with_context!(node_property)(context);
-    let exit_matcher = parser_with_context!(exit_matcher_parser)(context);
-    let (remaining, (children, _exit_contents)) =
-        many_till(node_property_matcher, exit_matcher)(input)?;
-    Ok((remaining, children))
-}
-
 #[cfg_attr(
     feature = "tracing",
     tracing::instrument(ret, level = "debug", skip(_context))

src/parser/section.rs

@@ -1,3 +1,4 @@
+use nom::combinator::consumed;
 use nom::combinator::opt;
 use nom::combinator::recognize;
 use nom::combinator::verify;
@@ -58,12 +59,12 @@ pub(crate) fn zeroth_section<'b, 'g, 'r, 's>(
         many0(blank_line),
     )))(input)?;
 
-    let (remaining, (mut children, _exit_contents)) = verify(
+    let (remaining, (contents, (mut children, _exit_contents))) = consumed(verify(
         many_till(element_matcher, exit_matcher),
         |(children, _exit_contents)| {
             !children.is_empty() || comment_and_property_drawer_element.is_some()
         },
-    )(remaining)?;
+    ))(remaining)?;
 
     if let Some((comment, property_drawer, _ws)) = comment_and_property_drawer_element {
         children.insert(0, Element::PropertyDrawer(property_drawer));
@@ -80,6 +81,7 @@ pub(crate) fn zeroth_section<'b, 'g, 'r, 's>(
         remaining,
         Section {
             source: source.into(),
+            contents: Some(contents.into()),
             post_blank: post_blank.map(Into::<&str>::into),
             children,
         },
@@ -116,12 +118,12 @@ pub(crate) fn section<'b, 'g, 'r, 's>(
         remaining = remain;
         input = remain;
     }
-    let (remaining, (mut children, _exit_contents)) = verify(
+    let (remaining, (contents, (mut children, _exit_contents))) = consumed(verify(
         many_till(element_matcher, exit_matcher),
         |(children, _exit_contents)| {
             !children.is_empty() || property_drawer_element.is_some() || planning_element.is_some()
         },
-    )(remaining)?;
+    ))(remaining)?;
     if let Some(ele) = property_drawer_element.map(Element::PropertyDrawer) {
         children.insert(0, ele);
     }
@@ -137,6 +139,7 @@ pub(crate) fn section<'b, 'g, 'r, 's>(
         remaining,
         Section {
             source: source.into(),
+            contents: Some(contents.into()),
             post_blank: post_blank.map(Into::<&str>::into),
             children,
         },

src/types/document.rs

@@ -35,12 +35,12 @@ pub struct Heading<'s> {
     pub scheduled: Option<Timestamp<'s>>,
     pub deadline: Option<Timestamp<'s>>,
     pub closed: Option<Timestamp<'s>>,
-    pub contents: Option<&'s str>,
 }
 
 #[derive(Debug)]
 pub struct Section<'s> {
     pub source: &'s str,
+    pub contents: Option<&'s str>,
     pub post_blank: Option<&'s str>,
     pub children: Vec<Element<'s>>,
 }
@@ -101,7 +101,7 @@ impl<'s> StandardProperties<'s> for Section<'s> {
     }
 
     fn get_contents<'b>(&'b self) -> Option<&'s str> {
-        Some(self.source)
+        self.contents
     }
 
     fn get_post_blank(&self) -> PostBlank {
@@ -119,7 +119,32 @@ impl<'s> StandardProperties<'s> for Heading<'s> {
     }
 
     fn get_contents<'b>(&'b self) -> Option<&'s str> {
-        self.contents
+        let first_child = self.children.first();
+        let last_child = self.children.last();
+        match (first_child, last_child) {
+            (None, None) => None,
+            (None, Some(_)) | (Some(_), None) => unreachable!(),
+            (Some(first_child), Some(last_child)) => {
+                let first_child_offset = first_child.get_source().as_ptr() as usize;
+                let last_child_offset = {
+                    let last_child_source = last_child.get_source();
+                    last_child_source.as_ptr() as usize + last_child_source.len()
+                };
+                let source_offset = self.source.as_ptr() as usize;
+                debug_assert!(super::lesser_element::is_slice_of(
+                    self.source,
+                    first_child.get_source()
+                ));
+                debug_assert!(super::lesser_element::is_slice_of(
+                    self.source,
+                    last_child.get_source()
+                ));
+                Some(
+                    &self.source[(first_child_offset - source_offset)
+                        ..(last_child_offset - first_child_offset)],
+                )
+            }
+        }
     }
 
     fn get_post_blank(&self) -> PostBlank {

src/types/greater_element.rs

@@ -103,8 +103,6 @@ pub struct Drawer<'s> {
 pub struct PropertyDrawer<'s> {
     pub source: &'s str,
     pub children: Vec<NodeProperty<'s>>,
-    pub contents: Option<&'s str>,
-    pub post_blank: Option<&'s str>,
 }
 
 #[derive(Debug)]
@@ -260,15 +258,11 @@ impl<'s> StandardProperties<'s> for PropertyDrawer<'s> {
     }
 
     fn get_contents<'b>(&'b self) -> Option<&'s str> {
-        self.contents
+        todo!()
     }
 
     fn get_post_blank(&self) -> PostBlank {
-        self.post_blank
-            .map(|text| text.lines().count())
-            .unwrap_or(0)
-            .try_into()
-            .expect("Too much post-blank to fit into a PostBlank.")
+        todo!()
     }
 }
 
@@ -278,11 +272,11 @@ impl<'s> StandardProperties<'s> for NodeProperty<'s> {
     }
 
     fn get_contents<'b>(&'b self) -> Option<&'s str> {
-        None
+        todo!()
     }
 
     fn get_post_blank(&self) -> PostBlank {
-        0
+        todo!()
     }
 }
 

src/types/lesser_element.rs

@@ -141,7 +141,6 @@ pub struct Planning<'s> {
     pub scheduled: Option<Timestamp<'s>>,
     pub deadline: Option<Timestamp<'s>>,
     pub closed: Option<Timestamp<'s>>,
-    pub post_blank: Option<&'s str>,
 }
 
 #[derive(Debug)]
@@ -156,7 +155,6 @@ pub struct FixedWidthArea<'s> {
 pub struct HorizontalRule<'s> {
     pub source: &'s str,
     pub affiliated_keywords: AffiliatedKeywords<'s>,
-    pub post_blank: Option<&'s str>,
 }
 
 #[derive(Debug)]
@@ -204,29 +202,10 @@ impl<'s> Paragraph<'s> {
     ///
     /// This is used for elements that support an "empty" content like greater blocks.
     pub(crate) fn of_text(source: &'s str, body: &'s str) -> Self {
-        // TODO: This should be replaced with of_text_full.
         Paragraph {
             source,
-            contents: None,
-            post_blank: None,
-            affiliated_keywords: AffiliatedKeywords::default(),
-            children: vec![Object::PlainText(PlainText { source: body })],
-        }
-    }
-
-    /// Generate a paragraph of the passed in text with no additional properties.
-    ///
-    /// This is used for elements that support an "empty" content like greater blocks.
-    pub(crate) fn of_text_full(
-        source: &'s str,
-        body: &'s str,
-        contents: Option<&'s str>,
-        post_blank: Option<&'s str>,
-    ) -> Self {
-        Paragraph {
-            source,
-            contents,
-            post_blank,
+            contents: None,   // TODO
+            post_blank: None, // TODO
             affiliated_keywords: AffiliatedKeywords::default(),
             children: vec![Object::PlainText(PlainText { source: body })],
         }
@@ -411,15 +390,11 @@ impl<'s> StandardProperties<'s> for Planning<'s> {
     }
 
     fn get_contents<'b>(&'b self) -> Option<&'s str> {
-        None
+        todo!()
     }
 
     fn get_post_blank(&self) -> PostBlank {
-        self.post_blank
-            .map(|text| text.lines().count())
-            .unwrap_or(0)
-            .try_into()
-            .expect("Too much post-blank to fit into a PostBlank.")
+        todo!()
     }
 }
 
@@ -447,15 +422,11 @@ impl<'s> StandardProperties<'s> for HorizontalRule<'s> {
     }
 
     fn get_contents<'b>(&'b self) -> Option<&'s str> {
-        None
+        todo!()
     }
 
     fn get_post_blank(&self) -> PostBlank {
-        self.post_blank
-            .map(|text| text.lines().count())
-            .unwrap_or(0)
-            .try_into()
-            .expect("Too much post-blank to fit into a PostBlank.")
+        todo!()
     }
 }