3 files changed, 16 insertions, 20 deletions

diff --git a/src/syntax/mod.rs b/src/syntax/mod.rs
index a3fe06bd..2f64bc9b 100644
--- a/src/syntax/mod.rs
+++ b/src/syntax/mod.rs
@@ -6,14 +6,9 @@ use unicode_xid::UnicodeXID;
 use crate::func::LayoutFunc;
 use crate::size::{Size, ScaleSize};
 
-mod tokens;
-#[macro_use]
-mod parsing;
-mod span;
-
-pub use span::{Span, Spanned};
-pub use tokens::{tokenize, Tokens};
-pub use parsing::{parse, ParseContext, ParseResult};
+pub_use_mod!(tokens);
+pub_use_mod!(parsing);
+pub_use_mod!(span);
 
 /// A logical unit of the incoming text stream.
 #[derive(Debug, Copy, Clone, Eq, PartialEq)]
@@ -185,6 +180,7 @@ impl FuncArgs {
     }
 }
 
+/// Extract the option expression kind from the option or return an error.
 fn expect<E: ExpressionKind>(opt: ParseResult<Option<Spanned<E>>>) -> ParseResult<Spanned<E>> {
     match opt {
         Ok(Some(spanned)) => Ok(spanned),
diff --git a/src/syntax/parsing.rs b/src/syntax/parsing.rs
index 9fe6c584..d887d898 100644
--- a/src/syntax/parsing.rs
+++ b/src/syntax/parsing.rs
@@ -1,10 +1,12 @@
 //! Parsing of token streams into syntax trees.
 
-use crate::TypesetResult;
 use crate::func::Scope;
 use crate::size::Size;
 use super::*;
 
+/// The result type for parsing.
+pub type ParseResult<T> = crate::TypesetResult<T>;
+
 /// Parses source code into a syntax tree given a context.
 pub fn parse(src: &str, ctx: ParseContext) -> ParseResult<SyntaxTree> {
     Parser::new(src, ctx).parse()
@@ -404,9 +406,6 @@ impl<'s> Iterator for PeekableTokens<'s> {
     }
 }
 
-/// The result type for parsing.
-pub type ParseResult<T> = TypesetResult<T>;
-
 
 #[cfg(test)]
 #[allow(non_snake_case)]
diff --git a/src/syntax/tokens.rs b/src/syntax/tokens.rs
index 95b2ea3e..cca8bee3 100644
--- a/src/syntax/tokens.rs
+++ b/src/syntax/tokens.rs
@@ -1,5 +1,6 @@
 use std::str::CharIndices;
 use smallvec::SmallVec;
+
 use super::*;
 
 /// Builds an iterator over the tokens of the source code.
@@ -266,7 +267,7 @@ fn is_newline_char(character: char) -> bool {
 
 /// A (index, char) iterator with double lookahead.
 #[derive(Debug, Clone)]
-pub struct PeekableChars<'s> {
+struct PeekableChars<'s> {
     string: &'s str,
     chars: CharIndices<'s>,
     peeked: SmallVec<[Option<(usize, char)>; 2]>,
@@ -276,7 +277,7 @@ pub struct PeekableChars<'s> {
 
 impl<'s> PeekableChars<'s> {
     /// Create a new iterator from a string.
-    pub fn new(string: &'s str) -> PeekableChars<'s> {
+    fn new(string: &'s str) -> PeekableChars<'s> {
         PeekableChars {
             string,
             chars: string.char_indices(),
@@ -287,17 +288,17 @@ impl<'s> PeekableChars<'s> {
     }
 
     /// Peek at the next element.
-    pub fn peek(&mut self) -> Option<(usize, char)> {
+    fn peek(&mut self) -> Option<(usize, char)> {
         self.peekn(0)
     }
 
     /// Peek at the char of the next element.
-    pub fn peekc(&mut self) -> Option<char> {
+    fn peekc(&mut self) -> Option<char> {
         self.peekn(0).map(|p| p.1)
     }
 
     /// Peek at the element after the next element.
-    pub fn peekn(&mut self, n: usize) -> Option<(usize, char)> {
+    fn peekn(&mut self, n: usize) -> Option<(usize, char)> {
         while self.peeked.len() <= n {
             let next = self.next_inner();
             self.peeked.push(next);
@@ -307,15 +308,15 @@ impl<'s> PeekableChars<'s> {
     }
 
     /// Return the next value of the inner iterator mapped with the offset.
-    pub fn next_inner(&mut self) -> Option<(usize, char)> {
+    fn next_inner(&mut self) -> Option<(usize, char)> {
         self.chars.next().map(|(i, c)| (self.base + i, c))
     }
 
-    pub fn string_index(&mut self) -> usize {
+    fn string_index(&mut self) -> usize {
         self.index
     }
 
-    pub fn set_string_index(&mut self, index: usize) {
+    fn set_string_index(&mut self, index: usize) {
         self.chars = self.string[index..].char_indices();
         self.base = index;
         self.index = 0;