Change name of link preprocessor

src/book/mod.rs

@@ -224,7 +224,7 @@ impl MDBook {
 
         let temp_dir = TempDir::new("mdbook")?;
 
-        let replace_all_preprocessor = preprocess::links::ReplaceAllPreprocessor {
+        let replace_all_preprocessor = preprocess::links::LinkPreprocessor {
             src_dir: self.source_dir(),
         };
 
@@ -337,24 +337,27 @@ fn determine_renderers(config: &Config) -> Vec<Box<Renderer>> {
 fn determine_preprocessors(md_book: &MDBook) -> Vec<Box<Preprocessor>> {
     let mut preprocessors: Vec<Box<Preprocessor>> = Vec::new();
 
-    if let Some(preprocess_array) = md_book.config.get("pre_process").and_then(|o| o.as_array()) {
+    if let Some(preprocess_array) = md_book.config.get("preprocess").and_then(|o| o.as_array()) {
         for key in preprocess_array.iter() {
-            if key.as_str().map_or(false, |key| key == "links") {
-                let replace_all_preprocessor = preprocess::links::ReplaceAllPreprocessor {
+            match key.as_str() {
+                Some(key) if key == "links" => {
+                    let link_preprocessor = preprocess::links::LinkPreprocessor {
                         src_dir: md_book.source_dir(),
                     };
 
-                preprocessors.push(Box::new(replace_all_preprocessor))
+                    preprocessors.push(Box::new(link_preprocessor ))
+                }
+                _ => {}
             }
         }
     }
 
     if preprocessors.is_empty() {
-        let replace_all_preprocessor = preprocess::links::ReplaceAllPreprocessor {
+        let link_preprocessor = preprocess::links::LinkPreprocessor {
             src_dir: md_book.source_dir(),
         };
 
-        preprocessors.push(Box::new(replace_all_preprocessor))
+        preprocessors.push(Box::new(link_preprocessor))
     }
 
     preprocessors

src/preprocess/links.rs

@@ -10,11 +10,11 @@ use book::{Book, BookItem};
 
 const ESCAPE_CHAR: char = '\\';
 
-pub struct ReplaceAllPreprocessor {
+pub struct LinkPreprocessor {
     pub src_dir: PathBuf
 }
 
-impl Preprocessor for ReplaceAllPreprocessor {
+impl Preprocessor for LinkPreprocessor {
     fn run(&self, book: &mut Book) -> Result<()> {
         for section in &mut book.sections {
             match *section {