From 7f78f1db3ccde59dfaf6e6389d61be7544d8a145 Mon Sep 17 00:00:00 2001
From: natjms <natjms@njms.ca>
Date: Fri, 20 Jan 2023 18:48:32 -0800
Subject: [PATCH] Make incoming link list display none if there's nothing

---
 calathea.c | 42 ++++++++++++++++++++++++++----------------
 1 file changed, 26 insertions(+), 16 deletions(-)

diff --git a/calathea.c b/calathea.c
index e53fb6b..a4b5d57 100644
--- a/calathea.c
+++ b/calathea.c
@@ -478,28 +478,38 @@ int main(int argc, char *argv[]) {
     char *incomingTagStart = strstr(renderedPage, "{{incoming}}");
     if (incomingTagStart != NULL) {
       // Build the incoming links list
-      int incomingListSize = 37;   // <ul class="calathea-incoming">\n</ul>\n
-      for (int i = 0; i < currentPage->incoming->length; i++) {
-        // `  <li><a href=\"[permalink]\">[title]</a></li>\n`
-        struct Page *page = currentPage->incoming->pages[i];
-        incomingListSize += 27 + strlen(page->title) + strlen(page->permalink);
+      // <ul class="calathea-incoming">\n</ul>\n
+      int incomingListSize = 37;
+      if (currentPage->incoming->length == 0) {
+        // `  <li>none</li>\n`
+        incomingListSize += 16;
+      } else {
+        for (int i = 0; i < currentPage->incoming->length; i++) {
+          // `  <li><a href=\"[permalink]\">[title]</a></li>\n`
+          struct Page *page = currentPage->incoming->pages[i];
+          incomingListSize += 27 + strlen(page->title) + strlen(page->permalink);
+        }
       }
 
       char *incomingLinksList = malloc((incomingListSize + 1) * sizeof(char));
       memset(incomingLinksList, 0, (incomingListSize + 1) * sizeof(char));
 
       strcpy(incomingLinksList, "<ul class=\"calathea-incoming\">\n");
-      for (int i = 0; i < currentPage->incoming->length; i++) {
-        struct Page *page = currentPage->incoming->pages[i];
-        char *link = concat_strings(5,
-            "  <li><a href=\"",
-            page->permalink,
-            "\">",
-            page->title,
-            "</a></li>\n"
-        );
-        strcat(incomingLinksList, link);
-        free(link);
+      if (currentPage->incoming->length == 0) {
+        strcat(incomingLinksList, "  <li>none</li>\n");
+      } else {
+        for (int i = 0; i < currentPage->incoming->length; i++) {
+          struct Page *page = currentPage->incoming->pages[i];
+          char *link = concat_strings(5,
+              "  <li><a href=\"",
+              page->permalink,
+              "\">",
+              page->title,
+              "</a></li>\n"
+          );
+          strcat(incomingLinksList, link);
+          free(link);
+        }
       }
       strcat(incomingLinksList, "</ul>\n");