Fix nested anchors and placeholders

Signed-off-by: trivernis <trivernis@protonmail.com>

src/parser/block.rs

@@ -102,6 +102,8 @@ impl ParseBlock for Parser {
             header.size = size;
             self.section_nesting = size;
             self.sections.push(size);
+            self.section_anchors.push(header.anchor.clone());
+
             let mut section = Section::new(header);
             section.metadata = metadata;
             self.ctm.seek_whitespace();
@@ -111,6 +113,7 @@ impl ParseBlock for Parser {
             }
 
             self.sections.pop();
+            self.section_anchors.pop();
             if let Some(sec) = self.sections.last() {
                 self.section_nesting = *sec
             } else {
@@ -337,8 +340,6 @@ impl ParseBlock for Parser {
             .map(|m| m.get_string_map())
             .unwrap_or(HashMap::new());
 
-        self.ctm.seek_whitespace();
-
         match self.import(path.clone(), &metadata) {
             ImportType::Document(Ok(anchor)) => Ok(Some(Import { path, anchor })),
             ImportType::Stylesheet(_) => Ok(None),

src/parser/line.rs

@@ -53,6 +53,9 @@ impl ParseLine for Parser {
         self.ctm.get_text()[start_index..self.ctm.get_index()]
             .iter()
             .for_each(|e| anchor.push(*e));
+        if let Some(last) = self.section_anchors.last() {
+            anchor = format!("{}-{}", last, anchor);
+        }
         anchor.retain(|c| !c.is_whitespace());
         log::trace!("Line::Header");
         Ok(Header::new(line, anchor))

src/parser/mod.rs

@@ -88,6 +88,7 @@ pub struct Parser {
     pub(crate) ctm: CharTapeMachine,
     section_nesting: u8,
     sections: Vec<u8>,
+    section_anchors: Vec<String>,
     section_return: Option<u8>,
     wg: WaitGroup,
     pub(crate) block_break_at: Vec<char>,
@@ -111,6 +112,7 @@ impl Parser {
         Self {
             options,
             sections: Vec::new(),
+            section_anchors: Vec::new(),
             section_nesting: 0,
             section_return: None,
             wg: WaitGroup::new(),
@@ -140,7 +142,7 @@ impl Parser {
         text_unil.reverse();
         let mut inline_pos = 0;
 
-        while text_unil[inline_pos] != LB {
+        while inline_pos < text_unil.len() && text_unil[inline_pos] != LB {
             inline_pos += 1;
         }
         if let Some(path) = &self.options.path {

src/references/placeholders.rs

@@ -35,6 +35,8 @@ const P_GLS: &str = "gls";
 const P_DATE: &str = "date";
 const P_TIME: &str = "time";
 const P_DATETIME: &str = "datetime";
+const P_AUTHOR: &str = "author";
+const P_TITLE: &str = "title";
 
 impl ProcessPlaceholders for Document {
     /// parses all placeholders and assigns values to them
@@ -65,6 +67,16 @@ impl ProcessPlaceholders for Document {
                 P_DATETIME => pholder.set_value(inline!(Inline::Plain(PlainText {
                     value: format!("{} {}", get_date_string(), get_time_string())
                 }))),
+                P_AUTHOR => {
+                    if let Some(value) = self.config.lock().metadata.author.clone() {
+                        pholder.set_value(inline!(Inline::Plain(PlainText { value })))
+                    }
+                }
+                P_TITLE => {
+                    if let Some(value) = self.config.lock().metadata.title.clone() {
+                        pholder.set_value(inline!(Inline::Plain(PlainText { value })))
+                    }
+                }
                 _ => {
                     if let Some(value) = self
                         .config