Add support for named wikilinks

README.md

@@ -11,9 +11,9 @@ zero-terminated strings. There will likely be memoryleaks and comments that
 over explain every line of code.
 
 ## Features
-- [x] Rendering wikilinks
-- [x] Ability to keep track of incoming links
-- [ ] Named wikilinks (i.e. `[[link title|actual page]]`)
+- Rendering wikilinks
+- Ability to keep track of incoming links
+- Named wikilinks (i.e. `[[link title|actual page]]`)
 
 ## installation
 This tool requires [cmark](https://github.com/commonmark/cmark) to be

calathea.c

@@ -350,13 +350,24 @@ int main(int argc, char *argv[]) {
 
       int linkLength = nextLinkEnd - nextLinkStart;
 
-      // Determine the exact title of the link
-      char title[linkLength - 3];
+      char *nextVerticalBar = strchr(nextLinkStart, '|');
 
-      strncpy(title, nextLinkStart + 2, (linkLength - 2)*sizeof(char));
-      title[linkLength - 2] = 0;
+      char *linkTitle = calloc(linkLength - 3, sizeof(char));
+      char *linkPageTitle = NULL;
 
-      struct Page *linkedPage = map_get(pageMap, mapSize, title);
+      if (nextVerticalBar != NULL && nextVerticalBar < nextLinkEnd) {
+        // The link is in the from [[link title|page title]]
+        strncpy(linkTitle, nextLinkStart + 2, (nextVerticalBar - 1) - (nextLinkStart + 1));
+        linkPageTitle = calloc((nextLinkEnd - 2) - nextVerticalBar, sizeof(char));
+        strncpy(linkPageTitle, nextVerticalBar + 1, (nextLinkEnd - 1) - nextVerticalBar);
+        puts(linkPageTitle);
+      } else {
+        // The link is of the form [[page title]]
+        linkPageTitle = linkTitle;
+        strncpy(linkTitle, nextLinkStart + 2, (linkLength - 2)*sizeof(char));
+      }
+
+      struct Page *linkedPage = map_get(pageMap, mapSize, linkPageTitle);
 
       char *compiledLink = NULL;
 
@@ -364,12 +375,12 @@ int main(int argc, char *argv[]) {
         // i.e. the page does not exist
         compiledLink = concat_strings(3,
           "<a class=\"calathea-404\" href=\"#\">",
-          title,
+          linkTitle,
           "</a>"
         );
       } else {
         page_list_insert(linkedPage->incoming, currentPage);
-        compiledLink = concat_strings(5, "[", title, "](", linkedPage->permalink, ")");
+        compiledLink = concat_strings(5, "[", linkTitle, "](", linkedPage->permalink, ")");
       }
 
       char *newContent = substitute_string(
@@ -378,6 +389,10 @@ int main(int argc, char *argv[]) {
       currentPage->content = newContent;
 
       free(compiledLink);
+      if (linkTitle != linkPageTitle) {
+        free(linkPageTitle);
+      }
+      free(linkTitle);
 
       // Move to the next chunk of the file
       // NOTE: This is suboptimal, because we search for "[[" from the