Add hiding of sections with metadata

Cargo.lock

@@ -358,7 +358,7 @@ dependencies = [
 
 [[package]]
 name = "snekdown"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-utils 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "snekdown"
-version = "0.5.0"
+version = "0.5.1"
 authors = ["trivernis <trivernis@protonmail.com>"]
 edition = "2018"
 license-file = "LICENSE"

README.md

@@ -108,3 +108,16 @@ Placeholder
 Formatting
 [author = "The Great snek" date = [[date]] time = [[time]] display = "author - date at time"]
 ```
+
+#### Usage
+
+```
+Hide a section (including subsections) in the TOC
+#[toc-hidden] Section
+
+Set the size of an image
+!(url)[width = 42% height=auto]
+
+Set the source of a quote
+[author=Me date=[[date]] display="author - date"]> It's me
+```

src/format/html.rs

@@ -287,22 +287,36 @@ impl ToHtml for Text {
 
 impl ToHtml for Image {
     fn to_html(&self) -> String {
+        let mut style = String::new();
+        if let Some(meta) = &self.metadata {
+            if let Some(width) = meta.data.get("width") {
+                style = format!("{}width: {};", style, width.to_html())
+            }
+            if let Some(height) = meta.data.get("height") {
+                style = format!("{}height: {};", style, height.to_html())
+            }
+        }
         if let Some(description) = self.url.description.clone() {
             minify(
                 format!(
                     "<div class='figure'>\
                      <a href={0}>\
-                     <img src='{0}' alt='{1}'/>\
+                     <img src='{0}' alt='{1}' style='{2}'/>\
                      </a>\
                      <label class='imageDescription'>{1}</label>\
                      </div>",
                     encode_attribute(self.url.url.clone().as_str()),
-                    encode_attribute(description.as_str())
+                    encode_attribute(description.as_str()),
+                    style
                 )
                 .as_str(),
             )
         } else {
-            format!("<a href={0}><img src='{0}'/></a>", self.url.url.clone(),)
+            format!(
+                "<a href={0}><img src='{0}' style='{1}'/></a>",
+                self.url.url.clone(),
+                style
+            )
         }
     }
 }

src/parsing/elements.rs

@@ -71,6 +71,7 @@ pub struct Document {
 pub struct Section {
     pub(crate) header: Header,
     pub(crate) elements: Vec<Block>,
+    pub(crate) metadata: Option<InlineMetadata>,
 }
 
 #[derive(Clone, Debug)]
@@ -264,9 +265,11 @@ impl Document {
         list.ordered = true;
         self.elements.iter().for_each(|e| match e {
             Block::Section(sec) => {
-                let mut item = ListItem::new(Inline::Anchor(sec.header.get_anchor()), 1, true);
-                item.children.append(&mut sec.get_toc_list().items);
-                list.add_item(item);
+                if !sec.get_hide_in_toc() {
+                    let mut item = ListItem::new(Inline::Anchor(sec.header.get_anchor()), 1, true);
+                    item.children.append(&mut sec.get_toc_list().items);
+                    list.add_item(item);
+                }
             }
             Block::Import(imp) => {
                 let anchor = imp.anchor.lock().unwrap();
@@ -286,6 +289,7 @@ impl Section {
         Self {
             header,
             elements: Vec::new(),
+            metadata: None,
         }
     }
 
@@ -317,14 +321,24 @@ impl Section {
         let mut list = List::new();
         self.elements.iter().for_each(|e| {
             if let Block::Section(sec) = e {
-                let mut item = ListItem::new(Inline::Anchor(sec.header.get_anchor()), 1, true);
-                item.children.append(&mut sec.get_toc_list().items);
-                list.add_item(item);
+                if !sec.get_hide_in_toc() {
+                    let mut item = ListItem::new(Inline::Anchor(sec.header.get_anchor()), 1, true);
+                    item.children.append(&mut sec.get_toc_list().items);
+                    list.add_item(item);
+                }
             }
         });
 
         list
     }
+
+    pub(crate) fn get_hide_in_toc(&self) -> bool {
+        if let Some(meta) = &self.metadata {
+            meta.get_bool("toc-hidden")
+        } else {
+            false
+        }
+    }
 }
 
 impl Header {
@@ -463,3 +477,13 @@ impl Placeholder {
         self.value = Some(value);
     }
 }
+
+impl InlineMetadata {
+    pub fn get_bool(&self, key: &str) -> bool {
+        if let Some(MetadataValue::Bool(value)) = self.data.get(key) {
+            *value
+        } else {
+            false
+        }
+    }
+}

src/parsing/parser.rs

@@ -418,11 +418,14 @@ impl Parser {
         if self.check_special(&HASH) {
             let mut size = 1;
             while let Some(_) = self.next_char() {
-                if self.check_special(&HASH) {
-                    size += 1;
-                } else {
+                if !self.check_special(&HASH) {
                     break;
                 }
+                size += 1;
+            }
+            let mut metadata = None;
+            if let Ok(meta) = self.parse_inline_metadata() {
+                metadata = Some(meta);
             }
             if size <= self.section_nesting || !self.current_char.is_whitespace() {
                 if size <= self.section_nesting {
@@ -436,6 +439,7 @@ impl Parser {
             self.section_nesting = size;
             self.sections.push(size);
             let mut section = Section::new(header);
+            section.metadata = metadata;
             self.seek_whitespace();
 
             while let Ok(block) = self.parse_block() {
@@ -542,6 +546,9 @@ impl Parser {
                 break;
             }
         }
+        if self.check_special(&META_CLOSE) {
+            let _ = self.next_char();
+        }
         if self.check_linebreak() || values.len() == 0 {
             // if there was a linebreak (the metadata wasn't closed) or there is no inner data
             // return an error