2 files changed, 95 insertions(+), 5 deletions(-)

M README.md
M src/main.c

@@ 22,6 22,7 @@ Build:
     cd szc
     meson build
     ninja -C build
+    sudo ninja -C build install # To install on system
 
 # Usage
 


@@ 30,9 31,13 @@ Build:
 
 Then follow along with the prompt.
 
-Generally provides two modes new and query
+Generally provides three modes: new, query, and link.
 
-One can create a new hub or zettel. Hubs are simply folders for categorization.
+new can create a new hub or zettel. Hubs are simply folders for categorization.
+
+query can navigate to a zettel.
+
+link can add link tags to two zettels, behaves similarly to query.
 
 zettels are the markdown files in these folders (hubs);
 

@@ 7,6 7,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 #include <pwd.h>
+#include <libgen.h>
 
 void read_zettel(char* filename);
 int read_hub(char* hubpath);


@@ 16,6 17,7 @@ void list_hubs(char* zdir);
 void user_interface(void);
 int get_path(char* path, char* zettel, char* hub);
 int scan_zettel(char* path, char* zettel);
+void link_zettel(char* path, char* path2);
 
 
 void


@@ 175,6 177,16 @@ get_path(char* path, char* zettel, char* hub)
 }
 
 void
+link_zettel(char* path, char* path2)
+{
+        FILE* fp = fopen(path, "a");
+        char temp[200];
+        strcpy(temp, path2);
+        fprintf(fp, "link: %s/%s\n", basename(dirname(temp)), basename(temp));
+        fclose(fp);
+}
+
+void
 user_interface(void)
 {
         char zdir[200];


@@ 197,7 209,7 @@ user_interface(void)
         }
 
         printf("Hi there! Welcome to Simple Zettelkasten in C.\n");
-        printf("Do you want to create a new zettel or query for a zettel?\n");
+        printf("Do you want to create a new zettel, query for a zettel, or link two zettels?\n");
 
         char choice[10];
         fgets(choice, 10, stdin);


@@ 216,7 228,7 @@ user_interface(void)
                 hub[strcspn(hub, "\n")] = '\0';
                 printf("\n");
 
-                char hubpath[300];
+               char hubpath[300];
                 strcpy(hubpath, zdir);
                 strcat(hubpath, hub);
 


@@ 297,7 309,80 @@ user_interface(void)
                 } else {
                         printf("Invalid command: %s. Try hub or zettel\n", choice2);
                 }
-        } else {
+        } else if (strcmp(choice, "link") == 0) {
+
+                printf("Choose first zettel. Listing hubs:\n");
+                list_hubs(zdir);
+                printf("---\n");
+                printf("Select a hub:\n");
+
+                char hub[50];
+                fgets(hub, 50, stdin);
+                hub[strcspn(hub, "\n")] = '\0';
+                printf("\n");
+
+                char hubpath[300];
+                strcpy(hubpath, zdir);
+                strcat(hubpath, hub);
+
+                printf("Listing zettels in hub: %s\n", hub);
+                if (read_hub(hubpath) != 0) {
+                        printf("Unable to find hub: %s\n", hub);
+                        return;
+                }
+                printf("----\n");
+                printf("Select a zettel by title:\n");
+
+                char zettel[100];
+                fgets(zettel, 100, stdin);
+                zettel[strcspn(zettel, "\n")] = '\0';
+                printf("\n");
+
+                char path[50];
+                if (get_path(path, zettel, hubpath) != 0) {
+                        printf("Unable to find zettel: %s\n", zettel);
+                        return;
+                }
+
+                printf("Choose second zettel. Listing hubs:\n");
+                list_hubs(zdir);
+                printf("---\n");
+                printf("Select a hub:\n");
+
+                char hub2[50];
+                fgets(hub2, 50, stdin);
+                hub2[strcspn(hub2, "\n")] = '\0';
+                printf("\n");
+
+                char hubpath2[300];
+                strcpy(hubpath2, zdir);
+                strcat(hubpath2, hub2);
+
+                printf("Listing zettels in hub: %s\n", hub2);
+                if (read_hub(hubpath2) != 0) {
+                        printf("Unable to find hub: %s\n", hub2);
+                        return;
+                }
+                printf("----\n");
+                printf("Select a zettel by title:\n");
+
+                char zettel2[100];
+                fgets(zettel2, 100, stdin);
+                zettel2[strcspn(zettel2, "\n")] = '\0';
+                printf("\n");
+
+                char path2[50];
+                if (get_path(path2, zettel2, hubpath2) != 0) {
+                        printf("Unable to find zettel: %s\n", zettel2);
+                        return;
+                }
+
+                link_zettel(path, path2);
+                link_zettel(path2, path);
+
+                printf("%s and %s have been linked.\n", zettel, zettel2);
+
+        }else {
                 printf("Invalid command: %s. Try query or new\n", choice);
         }