Remove 'appendix' from the links of appendix headings

If a heading is prefixed with 'Appendix #:', the link to that heading
will not include that prefix. This is to make it possible to rearrange
appendices in a document without breaking existing links.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/collect_files.rs b/src/collect_files.rs
index 14bf0c3..de577cf 100644
--- a/src/collect_files.rs
+++ b/src/collect_files.rs
@@ -167,7 +167,7 @@ impl Website {
                     let headings = document.blocks.iter()
                         .filter_map(|block| if let Block::Heading { line, level } = block {
                             let name = line.to_string();
-                            let url = make_url_safe(&name);
+                            let url = make_url_safe(strip_appendix(&name));
                             let level = level.to_owned();
                             if !heading_set.insert(url.clone()) {
                                 duplicates.insert(url.clone());
@@ -281,7 +281,8 @@ impl Website {
             if page.full_url == path {
                 let root = from.root();
                 if let Some(heading) = heading {
-                    if !page.headings.iter().any(|h| h.url == make_url_safe(heading)) {
+                    let heading = make_url_safe(strip_appendix(heading));
+                    if !page.headings.iter().any(|h| h.url == heading) {
                         warn!("Page {:?} contains link to nonexistent heading {heading:?} on page {path:?}", from.name());
                     }
                     return Some(format!("{root}{path}.{ext}#{heading}"));