Merge pull request #39 from NullHypothesis/add-net4people-links

Add net4people discussion links to papers.

references.bib

@@ -25,6 +25,7 @@ @inproceedings{Bocovich2024a
 	publisher = {USENIX},
 	year = {2024},
 	url = {https://www.usenix.org/system/files/sec24fall-prepub-1998-bocovich.pdf},
+	discussion_url = {https://github.com/net4people/bbs/issues/366},
 }
 
 @inproceedings{Moon2024a,
@@ -90,6 +91,7 @@ @inproceedings{Sakamoto2024a
 	publisher = {},
 	year = {2024},
 	url = {https://www.petsymposium.org/foci/2024/foci-2024-0002.pdf},
+	discussion_url = {https://github.com/net4people/bbs/issues/367},
 }
 
 @inproceedings{Chi2024a,

src/html.go

@@ -68,8 +68,24 @@ func makeBibEntryTitle(entry *bibEntry) string {
 		`</span>`,
 	}
 	// Icons are on the right side.
-	icons := []string{
-		`<span class="icons">`,
+	icons := makeIcons(entry)
+	return strings.Join(append(title, icons...), "\n")
+}
+
+func makeIcons(entry *bibEntry) []string {
+	var icons = []string{`<span class="icons">`}
+
+	// Not all references have a corresponding discussion (e.g., on net4people)
+	// but if they do, add an icon.
+	if field, ok := entry.Fields["discussion_url"]; ok {
+		s := fmt.Sprintf("<a href='%s'>", field.String()) +
+			`<img class="icon" title="Online discussion" src="assets/discussion-icon.svg" alt="Discussion icon">` +
+			`</a>`
+		icons = append(icons, s)
+	}
+
+	// Add icons that are always present.
+	icons = append(icons, []string{
 		fmt.Sprintf("<a href='%s'>", entry.Fields["url"].String()),
 		`<img class="icon" title="Download paper" src="assets/pdf-icon.svg" alt="Download icon">`,
 		`</a>`,
@@ -82,9 +98,9 @@ func makeBibEntryTitle(entry *bibEntry) string {
 		fmt.Sprintf("<a href='#%s'>", entry.CiteName),
 		`<img class="icon" title="Link to paper" src="assets/link-icon.svg" alt="Paper link icon">`,
 		`</a>`,
-		`</span>`,
-	}
-	return strings.Join(append(title, icons...), "\n")
+	}...)
+
+	return append(icons, `</span>`)
 }
 
 func makeBibEntryAuthors(entry *bibEntry) string {