Move link to its own module.

src/parser/bold.rs

@@ -39,10 +39,7 @@ fn can_start_bold<'s, 'r>(context: Context<'r, 's>) -> bool {
     _preceded_by_whitespace(context) && !_in_section(context, "bold")
 }
 
-pub fn context_bold_start<'s, 'r>(
-    context: Context<'r, 's>,
-    input: &'s str,
-) -> Res<&'s str, &'s str> {
+fn context_bold_start<'s, 'r>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, &'s str> {
     if can_start_bold(context) {
         recognize(bold_start)(input)
     } else {
@@ -53,7 +50,7 @@ pub fn context_bold_start<'s, 'r>(
     }
 }
 
-pub fn context_bold_end<'s, 'r>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, &'s str> {
+fn context_bold_end<'s, 'r>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, &'s str> {
     let (remaining, actual_match) = recognize(bold_end)(input)?;
     peek(alt((
         // Must have whitespace after the end asterisk or it must be the end of that section (as checked by the exit matcher)
@@ -66,10 +63,10 @@ pub fn context_bold_end<'s, 'r>(context: Context<'r, 's>, input: &'s str) -> Res
     Ok((remaining, actual_match))
 }
 
-pub fn bold_start(input: &str) -> Res<&str, TextElement> {
+fn bold_start(input: &str) -> Res<&str, TextElement> {
     map(symbol("*"), TextElement::Symbol)(input)
 }
 
-pub fn bold_end(input: &str) -> Res<&str, TextElement> {
+fn bold_end(input: &str) -> Res<&str, TextElement> {
     map(symbol("*"), TextElement::Symbol)(input)
 }

src/parser/link.rs

@@ -0,0 +1,60 @@
+use crate::parser::parser_with_context::parser_with_context;
+
+use super::combinator::context_many_till;
+use super::error::CustomError;
+use super::error::MyError;
+use super::parser_context::ChainBehavior;
+use super::parser_context::ContextElement;
+use super::parser_context::ExitMatcherNode;
+use super::text::symbol;
+use super::text::Link;
+use super::text::Res;
+use super::text::TextElement;
+use super::text_element_parser::_in_section;
+use super::text_element_parser::flat_text_element;
+use super::Context;
+use nom::combinator::map;
+use nom::combinator::recognize;
+use nom::sequence::tuple;
+
+pub fn flat_link<'s, 'r>(context: Context<'r, 's>, i: &'s str) -> Res<&'s str, Link<'s>> {
+    let link_start = parser_with_context!(context_link_start)(&context);
+    let parser_context = context
+        .with_additional_node(ContextElement::ExitMatcherNode(ExitMatcherNode {
+            exit_matcher: ChainBehavior::AndParent(Some(&context_link_end)),
+        }))
+        .with_additional_node(ContextElement::Context("link"));
+    let (remaining, captured) = recognize(tuple((link_start, |i| {
+        context_many_till(&parser_context, flat_text_element, context_link_end)(i)
+    })))(i)?;
+    let ret = Link { contents: captured };
+    Ok((remaining, ret))
+}
+
+fn can_start_link<'s, 'r>(context: Context<'r, 's>) -> bool {
+    !_in_section(context, "link")
+}
+
+fn context_link_start<'s, 'r>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, &'s str> {
+    if can_start_link(context) {
+        recognize(link_start)(input)
+    } else {
+        // TODO: Make this a specific error instead of just a generic MyError
+        return Err(nom::Err::Error(CustomError::MyError(MyError(
+            "Cannot start link",
+        ))));
+    }
+}
+
+fn context_link_end<'s, 'r>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, &'s str> {
+    let (remaining, actual_match) = recognize(link_end)(input)?;
+    Ok((remaining, actual_match))
+}
+
+fn link_start(input: &str) -> Res<&str, TextElement> {
+    map(symbol("["), TextElement::Symbol)(input)
+}
+
+fn link_end(input: &str) -> Res<&str, TextElement> {
+    map(symbol("]"), TextElement::Symbol)(input)
+}

src/parser/mod.rs

@@ -1,6 +1,7 @@
 mod bold;
 mod combinator;
 mod error;
+mod link;
 mod list;
 mod parser_context;
 mod parser_with_context;

src/parser/text.rs

@@ -100,14 +100,6 @@ fn blank_line(input: &str) -> Res<&str, BlankLine> {
     )(input)
 }
 
-pub fn link_start(input: &str) -> Res<&str, TextElement> {
-    map(symbol("["), TextElement::Symbol)(input)
-}
-
-pub fn link_end(input: &str) -> Res<&str, TextElement> {
-    map(symbol("]"), TextElement::Symbol)(input)
-}
-
 pub fn paragraph_end(input: &str) -> Res<&str, &str> {
     alt((
         recognize(tuple((

src/parser/text_element_parser.rs

@@ -5,19 +5,15 @@ use crate::parser::text::paragraph_end;
 use super::bold::flat_bold;
 use super::combinator::context_many1;
 use super::combinator::context_many_till;
-use super::error::CustomError;
-use super::error::MyError;
+use super::link::flat_link;
 use super::parser_context::ChainBehavior;
 use super::parser_context::ContextElement;
 use super::parser_context::ContextTree;
 use super::parser_context::ExitMatcherNode;
 use super::text::line_break;
-use super::text::link_end;
-use super::text::link_start;
 use super::text::space;
 use super::text::span;
 use super::text::symbol;
-use super::text::Link;
 use super::text::Paragraph;
 use super::text::Res;
 use super::text::TextElement;
@@ -27,8 +23,6 @@ use nom::branch::alt;
 use nom::combinator::eof;
 use nom::combinator::map;
 use nom::combinator::not;
-use nom::combinator::recognize;
-use nom::sequence::tuple;
 use nom::IResult;
 
 type UnboundMatcher<'r, 's, I, O, E> = dyn Fn(Context<'r, 's>, I) -> IResult<I, O, E>;
@@ -53,10 +47,6 @@ pub fn context_paragraph_end<'s, 'r>(
     paragraph_end(input)
 }
 
-fn can_start_link<'s, 'r>(context: Context<'r, 's>) -> bool {
-    !_in_section(context, "link")
-}
-
 pub fn _in_section<'s, 'r, 'x>(context: Context<'r, 's>, section_name: &'x str) -> bool {
     for thing in context.iter() {
         match thing.get_data() {
@@ -103,25 +93,6 @@ pub fn _preceded_by_whitespace<'s, 'r>(context: Context<'r, 's>) -> bool {
     false
 }
 
-pub fn context_link_start<'s, 'r>(
-    context: Context<'r, 's>,
-    input: &'s str,
-) -> Res<&'s str, &'s str> {
-    if can_start_link(context) {
-        recognize(link_start)(input)
-    } else {
-        // TODO: Make this a specific error instead of just a generic MyError
-        return Err(nom::Err::Error(CustomError::MyError(MyError(
-            "Cannot start link",
-        ))));
-    }
-}
-
-pub fn context_link_end<'s, 'r>(context: Context<'r, 's>, input: &'s str) -> Res<&'s str, &'s str> {
-    let (remaining, actual_match) = recognize(link_end)(input)?;
-    Ok((remaining, actual_match))
-}
-
 pub fn paragraph<'s, 'r>(context: Context<'r, 's>, i: &'s str) -> Res<&'s str, Paragraph<'s>> {
     // Add a not(eof) check because many_till cannot match a zero-length string
     not(eof)(i)?;
@@ -168,17 +139,3 @@ pub fn flat_text_element<'s, 'r>(
         map(line_break, TextElement::LineBreak),
     ))(i)
 }
-
-fn flat_link<'s, 'r>(context: Context<'r, 's>, i: &'s str) -> Res<&'s str, Link<'s>> {
-    let link_start = parser_with_context!(context_link_start)(&context);
-    let parser_context = context
-        .with_additional_node(ContextElement::ExitMatcherNode(ExitMatcherNode {
-            exit_matcher: ChainBehavior::AndParent(Some(&context_link_end)),
-        }))
-        .with_additional_node(ContextElement::Context("link"));
-    let (remaining, captured) = recognize(tuple((link_start, |i| {
-        context_many_till(&parser_context, flat_text_element, context_link_end)(i)
-    })))(i)?;
-    let ret = Link { contents: captured };
-    Ok((remaining, ret))
-}